diff options
Diffstat (limited to 'unix/tkUnixWm.c')
| -rw-r--r-- | unix/tkUnixWm.c | 4813 |
1 files changed, 4813 insertions, 0 deletions
diff --git a/unix/tkUnixWm.c b/unix/tkUnixWm.c new file mode 100644 index 0000000..0c26c9b --- /dev/null +++ b/unix/tkUnixWm.c @@ -0,0 +1,4813 @@ +/* + * tkUnixWm.c -- + * + * This module takes care of the interactions between a Tk-based + * application and the window manager. Among other things, it + * implements the "wm" command and passes geometry information + * to the window manager. + * + * Copyright (c) 1991-1994 The Regents of the University of California. + * Copyright (c) 1994-1997 Sun Microsystems, Inc. + * + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + * SCCS: @(#) tkUnixWm.c 1.155 97/10/28 08:35:19 + */ + +#include "tkPort.h" +#include "tkInt.h" +#include "tkUnixInt.h" +#include <errno.h> + +/* + * A data structure of the following type holds information for + * each window manager protocol (such as WM_DELETE_WINDOW) for + * which a handler (i.e. a Tcl command) has been defined for a + * particular top-level window. + */ + +typedef struct ProtocolHandler { + Atom protocol; /* Identifies the protocol. */ + struct ProtocolHandler *nextPtr; + /* Next in list of protocol handlers for + * the same top-level window, or NULL for + * end of list. */ + Tcl_Interp *interp; /* Interpreter in which to invoke command. */ + char command[4]; /* Tcl command to invoke when a client + * message for this protocol arrives. + * The actual size of the structure varies + * to accommodate the needs of the actual + * command. THIS MUST BE THE LAST FIELD OF + * THE STRUCTURE. */ +} ProtocolHandler; + +#define HANDLER_SIZE(cmdLength) \ + ((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength)) + +/* + * A data structure of the following type holds window-manager-related + * information for each top-level window in an application. + */ + +typedef struct TkWmInfo { + TkWindow *winPtr; /* Pointer to main Tk information for + * this window. */ + Window reparent; /* If the window has been reparented, this + * gives the ID of the ancestor of the window + * that is a child of the root window (may + * not be window's immediate parent). If + * the window isn't reparented, this has the + * value None. */ + char *title; /* Title to display in window caption. If + * NULL, use name of widget. Malloced. */ + char *iconName; /* Name to display in icon. Malloced. */ + Window master; /* Master window for TRANSIENT_FOR property, + * or None. */ + XWMHints hints; /* Various pieces of information for + * window manager. */ + char *leaderName; /* Path name of leader of window group + * (corresponds to hints.window_group). + * Malloc-ed. Note: this field doesn't + * get updated if leader is destroyed. */ + char *masterWindowName; /* Path name of window specified as master + * in "wm transient" command, or NULL. + * Malloc-ed. Note: this field doesn't + * get updated if masterWindowName is + * destroyed. */ + Tk_Window icon; /* Window to use as icon for this window, + * or NULL. */ + Tk_Window iconFor; /* Window for which this window is icon, or + * NULL if this isn't an icon for anyone. */ + int withdrawn; /* Non-zero means window has been withdrawn. */ + + /* + * In order to support menubars transparently under X, each toplevel + * window is encased in an additional window, called the wrapper, + * that holds the toplevel and the menubar, if any. The information + * below is used to keep track of the wrapper and the menubar. + */ + + TkWindow *wrapperPtr; /* Pointer to information about the wrapper. + * This is the "real" toplevel window as + * seen by the window manager. Although + * this is an official Tk window, it + * doesn't appear in the application's + * window hierarchy. NULL means that + * the wrapper hasn't been created yet. */ + Tk_Window menubar; /* Pointer to information about the + * menubar, or NULL if there is no + * menubar for this toplevel. */ + int menuHeight; /* Amount of vertical space needed for + * menubar, measured in pixels. If + * menubar is non-NULL, this is >= 1 (X + * servers don't like dimensions of 0). */ + + /* + * Information used to construct an XSizeHints structure for + * the window manager: + */ + + int sizeHintsFlags; /* Flags word for XSizeHints structure. + * If the PBaseSize flag is set then the + * window is gridded; otherwise it isn't + * gridded. */ + int minWidth, minHeight; /* Minimum dimensions of window, in + * grid units, not pixels. */ + int maxWidth, maxHeight; /* Maximum dimensions of window, in + * grid units, not pixels. */ + Tk_Window gridWin; /* Identifies the window that controls + * gridding for this top-level, or NULL if + * the top-level isn't currently gridded. */ + int widthInc, heightInc; /* Increments for size changes (# pixels + * per step). */ + struct { + int x; /* numerator */ + int y; /* denominator */ + } minAspect, maxAspect; /* Min/max aspect ratios for window. */ + int reqGridWidth, reqGridHeight; + /* The dimensions of the window (in + * grid units) requested through + * the geometry manager. */ + int gravity; /* Desired window gravity. */ + + /* + * Information used to manage the size and location of a window. + */ + + int width, height; /* Desired dimensions of window, specified + * in grid units. These values are + * set by the "wm geometry" command and by + * ConfigureNotify events (for when wm + * resizes window). -1 means user hasn't + * requested dimensions. */ + int x, y; /* Desired X and Y coordinates for window. + * These values are set by "wm geometry", + * plus by ConfigureNotify events (when wm + * moves window). These numbers are + * different than the numbers stored in + * winPtr->changes because (a) they could be + * measured from the right or bottom edge + * of the screen (see WM_NEGATIVE_X and + * WM_NEGATIVE_Y flags) and (b) if the window + * has been reparented then they refer to the + * parent rather than the window itself. */ + int parentWidth, parentHeight; + /* Width and height of reparent, in pixels + * *including border*. If window hasn't been + * reparented then these will be the outer + * dimensions of the window, including + * border. */ + int xInParent, yInParent; /* Offset of wrapperPtr within reparent, + * measured in pixels from upper-left outer + * corner of reparent's border to upper-left + * outer corner of wrapperPtr's border. If + * not reparented then these are zero. */ + int configWidth, configHeight; + /* Dimensions passed to last request that we + * issued to change geometry of the wrapper. + * Used to eliminate redundant resize + * operations. */ + + /* + * Information about the virtual root window for this top-level, + * if there is one. + */ + + Window vRoot; /* Virtual root window for this top-level, + * or None if there is no virtual root + * window (i.e. just use the screen's root). */ + int vRootX, vRootY; /* Position of the virtual root inside the + * root window. If the WM_VROOT_OFFSET_STALE + * flag is set then this information may be + * incorrect and needs to be refreshed from + * the X server. If vRoot is None then these + * values are both 0. */ + int vRootWidth, vRootHeight;/* Dimensions of the virtual root window. + * If vRoot is None, gives the dimensions + * of the containing screen. This information + * is never stale, even though vRootX and + * vRootY can be. */ + + /* + * Miscellaneous information. + */ + + ProtocolHandler *protPtr; /* First in list of protocol handlers for + * this window (NULL means none). */ + int cmdArgc; /* Number of elements in cmdArgv below. */ + char **cmdArgv; /* Array of strings to store in the + * WM_COMMAND property. NULL means nothing + * available. */ + char *clientMachine; /* String to store in WM_CLIENT_MACHINE + * property, or NULL. */ + int flags; /* Miscellaneous flags, defined below. */ + struct TkWmInfo *nextPtr; /* Next in list of all top-level windows. */ +} WmInfo; + +/* + * Flag values for WmInfo structures: + * + * WM_NEVER_MAPPED - non-zero means window has never been + * mapped; need to update all info when + * window is first mapped. + * WM_UPDATE_PENDING - non-zero means a call to UpdateGeometryInfo + * has already been scheduled for this + * window; no need to schedule another one. + * WM_NEGATIVE_X - non-zero means x-coordinate is measured in + * pixels from right edge of screen, rather + * than from left edge. + * WM_NEGATIVE_Y - non-zero means y-coordinate is measured in + * pixels up from bottom of screen, rather than + * down from top. + * WM_UPDATE_SIZE_HINTS - non-zero means that new size hints need to be + * propagated to window manager. + * WM_SYNC_PENDING - set to non-zero while waiting for the window + * manager to respond to some state change. + * WM_VROOT_OFFSET_STALE - non-zero means that (x,y) offset information + * about the virtual root window is stale and + * needs to be fetched fresh from the X server. + * WM_ABOUT_TO_MAP - non-zero means that the window is about to + * be mapped by TkWmMapWindow. This is used + * by UpdateGeometryInfo to modify its behavior. + * WM_MOVE_PENDING - non-zero means the application has requested + * a new position for the window, but it hasn't + * been reflected through the window manager + * yet. + * WM_COLORMAPS_EXPLICIT - non-zero means the colormap windows were + * set explicitly via "wm colormapwindows". + * WM_ADDED_TOPLEVEL_COLORMAP - non-zero means that when "wm colormapwindows" + * was called the top-level itself wasn't + * specified, so we added it implicitly at + * the end of the list. + * WM_WIDTH_NOT_RESIZABLE - non-zero means that we're not supposed to + * allow the user to change the width of the + * window (controlled by "wm resizable" + * command). + * WM_HEIGHT_NOT_RESIZABLE - non-zero means that we're not supposed to + * allow the user to change the height of the + * window (controlled by "wm resizable" + * command). + */ + +#define WM_NEVER_MAPPED 1 +#define WM_UPDATE_PENDING 2 +#define WM_NEGATIVE_X 4 +#define WM_NEGATIVE_Y 8 +#define WM_UPDATE_SIZE_HINTS 0x10 +#define WM_SYNC_PENDING 0x20 +#define WM_VROOT_OFFSET_STALE 0x40 +#define WM_ABOUT_TO_MAP 0x100 +#define WM_MOVE_PENDING 0x200 +#define WM_COLORMAPS_EXPLICIT 0x400 +#define WM_ADDED_TOPLEVEL_COLORMAP 0x800 +#define WM_WIDTH_NOT_RESIZABLE 0x1000 +#define WM_HEIGHT_NOT_RESIZABLE 0x2000 + +/* + * This module keeps a list of all top-level windows, primarily to + * simplify the job of Tk_CoordsToWindow. + */ + +static WmInfo *firstWmPtr = NULL; /* Points to first top-level window. */ + + +/* + * The variable below is used to enable or disable tracing in this + * module. If tracing is enabled, then information is printed on + * standard output about interesting interactions with the window + * manager. + */ + +static int wmTracing = 0; + +/* + * The following structures are the official type records for geometry + * management of top-level and menubar windows. + */ + +static void TopLevelReqProc _ANSI_ARGS_((ClientData dummy, + Tk_Window tkwin)); + +static Tk_GeomMgr wmMgrType = { + "wm", /* name */ + TopLevelReqProc, /* requestProc */ + (Tk_GeomLostSlaveProc *) NULL, /* lostSlaveProc */ +}; + +static void MenubarReqProc _ANSI_ARGS_((ClientData clientData, + Tk_Window tkwin)); + +static Tk_GeomMgr menubarMgrType = { + "menubar", /* name */ + MenubarReqProc, /* requestProc */ + (Tk_GeomLostSlaveProc *) NULL, /* lostSlaveProc */ +}; + +/* + * Structures of the following type are used for communication between + * WaitForEvent, WaitRestrictProc, and WaitTimeoutProc. + */ + +typedef struct WaitRestrictInfo { + Display *display; /* Window belongs to this display. */ + Window window; /* We're waiting for events on this window. */ + int type; /* We only care about this type of event. */ + XEvent *eventPtr; /* Where to store the event when it's found. */ + int foundEvent; /* Non-zero means that an event of the + * desired type has been found. */ +} WaitRestrictInfo; + +/* + * Forward declarations for procedures defined in this file: + */ + +static int ComputeReparentGeometry _ANSI_ARGS_((WmInfo *wmPtr)); +static void ConfigureEvent _ANSI_ARGS_((WmInfo *wmPtr, + XConfigureEvent *eventPtr)); +static void CreateWrapper _ANSI_ARGS_((WmInfo *wmPtr)); +static void GetMaxSize _ANSI_ARGS_((WmInfo *wmPtr, + int *maxWidthPtr, int *maxHeightPtr)); +static void MenubarDestroyProc _ANSI_ARGS_((ClientData clientData, + XEvent *eventPtr)); +static int ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp, + char *string, TkWindow *winPtr)); +static void ReparentEvent _ANSI_ARGS_((WmInfo *wmPtr, + XReparentEvent *eventPtr)); +static void TopLevelReqProc _ANSI_ARGS_((ClientData dummy, + Tk_Window tkwin)); +static void UpdateGeometryInfo _ANSI_ARGS_(( + ClientData clientData)); +static void UpdateHints _ANSI_ARGS_((TkWindow *winPtr)); +static void UpdateSizeHints _ANSI_ARGS_((TkWindow *winPtr)); +static void UpdateVRootGeometry _ANSI_ARGS_((WmInfo *wmPtr)); +static void UpdateWmProtocols _ANSI_ARGS_((WmInfo *wmPtr)); +static void WaitForConfigureNotify _ANSI_ARGS_((TkWindow *winPtr, + unsigned long serial)); +static int WaitForEvent _ANSI_ARGS_((Display *display, + Window window, int type, XEvent *eventPtr)); +static void WaitForMapNotify _ANSI_ARGS_((TkWindow *winPtr, + int mapped)); +static Tk_RestrictAction + WaitRestrictProc _ANSI_ARGS_((ClientData clientData, + XEvent *eventPtr)); +static void WrapperEventProc _ANSI_ARGS_((ClientData clientData, + XEvent *eventPtr)); + +/* + *-------------------------------------------------------------- + * + * TkWmNewWindow -- + * + * This procedure is invoked whenever a new top-level + * window is created. Its job is to initialize the WmInfo + * structure for the window. + * + * Results: + * None. + * + * Side effects: + * A WmInfo structure gets allocated and initialized. + * + *-------------------------------------------------------------- + */ + +void +TkWmNewWindow(winPtr) + TkWindow *winPtr; /* Newly-created top-level window. */ +{ + register WmInfo *wmPtr; + + wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo)); + wmPtr->winPtr = winPtr; + wmPtr->reparent = None; + wmPtr->title = NULL; + wmPtr->iconName = NULL; + wmPtr->master = None; + wmPtr->hints.flags = InputHint | StateHint; + wmPtr->hints.input = True; + wmPtr->hints.initial_state = NormalState; + wmPtr->hints.icon_pixmap = None; + wmPtr->hints.icon_window = None; + wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0; + wmPtr->hints.icon_mask = None; + wmPtr->hints.window_group = None; + wmPtr->leaderName = NULL; + wmPtr->masterWindowName = NULL; + wmPtr->icon = NULL; + wmPtr->iconFor = NULL; + wmPtr->withdrawn = 0; + wmPtr->wrapperPtr = NULL; + wmPtr->menubar = NULL; + wmPtr->menuHeight = 0; + wmPtr->sizeHintsFlags = 0; + wmPtr->minWidth = wmPtr->minHeight = 1; + + /* + * Default the maximum dimensions to the size of the display, minus + * a guess about how space is needed for window manager decorations. + */ + + wmPtr->maxWidth = 0; + wmPtr->maxHeight = 0; + wmPtr->gridWin = NULL; + wmPtr->widthInc = wmPtr->heightInc = 1; + wmPtr->minAspect.x = wmPtr->minAspect.y = 1; + wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1; + wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1; + wmPtr->gravity = NorthWestGravity; + wmPtr->width = -1; + wmPtr->height = -1; + wmPtr->x = winPtr->changes.x; + wmPtr->y = winPtr->changes.y; + wmPtr->parentWidth = winPtr->changes.width + + 2*winPtr->changes.border_width; + wmPtr->parentHeight = winPtr->changes.height + + 2*winPtr->changes.border_width; + wmPtr->xInParent = wmPtr->yInParent = 0; + wmPtr->configWidth = -1; + wmPtr->configHeight = -1; + wmPtr->vRoot = None; + wmPtr->protPtr = NULL; + wmPtr->cmdArgv = NULL; + wmPtr->clientMachine = NULL; + wmPtr->flags = WM_NEVER_MAPPED; + wmPtr->nextPtr = firstWmPtr; + firstWmPtr = wmPtr; + winPtr->wmInfoPtr = wmPtr; + + UpdateVRootGeometry(wmPtr); + + /* + * Arrange for geometry requests to be reflected from the window + * to the window manager. + */ + + Tk_ManageGeometry((Tk_Window) winPtr, &wmMgrType, (ClientData) 0); +} + +/* + *-------------------------------------------------------------- + * + * TkWmMapWindow -- + * + * This procedure is invoked to map a top-level window. This + * module gets a chance to update all window-manager-related + * information in properties before the window manager sees + * the map event and checks the properties. It also gets to + * decide whether or not to even map the window after all. + * + * Results: + * None. + * + * Side effects: + * Properties of winPtr may get updated to provide up-to-date + * information to the window manager. The window may also get + * mapped, but it may not be if this procedure decides that + * isn't appropriate (e.g. because the window is withdrawn). + * + *-------------------------------------------------------------- + */ + +void +TkWmMapWindow(winPtr) + TkWindow *winPtr; /* Top-level window that's about to + * be mapped. */ +{ + register WmInfo *wmPtr = winPtr->wmInfoPtr; + XTextProperty textProp; + char *string; + + if (wmPtr->flags & WM_NEVER_MAPPED) { + wmPtr->flags &= ~WM_NEVER_MAPPED; + + /* + * This is the first time this window has ever been mapped. + * First create the wrapper window that provides space for a + * menubar. + */ + + if (wmPtr->wrapperPtr == NULL) { + CreateWrapper(wmPtr); + } + + /* + * Store all the window-manager-related information for the + * window. + */ + + string = (wmPtr->title != NULL) ? wmPtr->title : winPtr->nameUid; + if (XStringListToTextProperty(&string, 1, &textProp) != 0) { + XSetWMName(winPtr->display, wmPtr->wrapperPtr->window, &textProp); + XFree((char *) textProp.value); + } + + TkWmSetClass(winPtr); + + if (wmPtr->iconName != NULL) { + XSetIconName(winPtr->display, wmPtr->wrapperPtr->window, + wmPtr->iconName); + } + + if (wmPtr->master != None) { + XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window, + wmPtr->master); + } + + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + UpdateHints(winPtr); + UpdateWmProtocols(wmPtr); + if (wmPtr->cmdArgv != NULL) { + XSetCommand(winPtr->display, wmPtr->wrapperPtr->window, + wmPtr->cmdArgv, wmPtr->cmdArgc); + } + if (wmPtr->clientMachine != NULL) { + if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp) + != 0) { + XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window, + &textProp); + XFree((char *) textProp.value); + } + } + } + if (wmPtr->hints.initial_state == WithdrawnState) { + return; + } + if (wmPtr->iconFor != NULL) { + /* + * This window is an icon for somebody else. Make sure that + * the geometry is up-to-date, then return without mapping + * the window. + */ + + if (wmPtr->flags & WM_UPDATE_PENDING) { + Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr); + } + UpdateGeometryInfo((ClientData) winPtr); + return; + } + wmPtr->flags |= WM_ABOUT_TO_MAP; + if (wmPtr->flags & WM_UPDATE_PENDING) { + Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr); + } + UpdateGeometryInfo((ClientData) winPtr); + wmPtr->flags &= ~WM_ABOUT_TO_MAP; + + /* + * Map the window, then wait to be sure that the window manager has + * processed the map operation. + */ + + XMapWindow(winPtr->display, wmPtr->wrapperPtr->window); + if (wmPtr->hints.initial_state == NormalState) { + WaitForMapNotify(winPtr, 1); + } +} + +/* + *-------------------------------------------------------------- + * + * TkWmUnmapWindow -- + * + * This procedure is invoked to unmap a top-level window. The + * only thing it does special is to wait for the window actually + * to be unmapped. + * + * Results: + * None. + * + * Side effects: + * Unmaps the window. + * + *-------------------------------------------------------------- + */ + +void +TkWmUnmapWindow(winPtr) + TkWindow *winPtr; /* Top-level window that's about to + * be mapped. */ +{ + /* + * It seems to be important to wait after unmapping a top-level + * window until the window really gets unmapped. I don't completely + * understand all the interactions with the window manager, but if + * we go on without waiting, and if the window is then mapped again + * quickly, events seem to get lost so that we think the window isn't + * mapped when in fact it is mapped. I suspect that this has something + * to do with the window manager filtering Map events (and possily not + * filtering Unmap events?). + */ + XUnmapWindow(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window); + WaitForMapNotify(winPtr, 0); +} + +/* + *-------------------------------------------------------------- + * + * TkWmDeadWindow -- + * + * This procedure is invoked when a top-level window is + * about to be deleted. It cleans up the wm-related data + * structures for the window. + * + * Results: + * None. + * + * Side effects: + * The WmInfo structure for winPtr gets freed up. + * + *-------------------------------------------------------------- + */ + +void +TkWmDeadWindow(winPtr) + TkWindow *winPtr; /* Top-level window that's being deleted. */ +{ + register WmInfo *wmPtr = winPtr->wmInfoPtr; + WmInfo *wmPtr2; + + if (wmPtr == NULL) { + return; + } + if (firstWmPtr == wmPtr) { + firstWmPtr = wmPtr->nextPtr; + } else { + register WmInfo *prevPtr; + + for (prevPtr = firstWmPtr; ; prevPtr = prevPtr->nextPtr) { + if (prevPtr == NULL) { + panic("couldn't unlink window in TkWmDeadWindow"); + } + if (prevPtr->nextPtr == wmPtr) { + prevPtr->nextPtr = wmPtr->nextPtr; + break; + } + } + } + if (wmPtr->title != NULL) { + ckfree(wmPtr->title); + } + if (wmPtr->iconName != NULL) { + ckfree(wmPtr->iconName); + } + if (wmPtr->hints.flags & IconPixmapHint) { + Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap); + } + if (wmPtr->hints.flags & IconMaskHint) { + Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask); + } + if (wmPtr->leaderName != NULL) { + ckfree(wmPtr->leaderName); + } + if (wmPtr->masterWindowName != NULL) { + ckfree(wmPtr->masterWindowName); + } + if (wmPtr->icon != NULL) { + wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr; + wmPtr2->iconFor = NULL; + wmPtr2->withdrawn = 1; + } + if (wmPtr->iconFor != NULL) { + wmPtr2 = ((TkWindow *) wmPtr->iconFor)->wmInfoPtr; + wmPtr2->icon = NULL; + wmPtr2->hints.flags &= ~IconWindowHint; + UpdateHints((TkWindow *) wmPtr->iconFor); + } + if (wmPtr->menubar != NULL) { + Tk_DestroyWindow(wmPtr->menubar); + } + if (wmPtr->wrapperPtr != NULL) { + /* + * The rest of Tk doesn't know that we reparent the toplevel + * inside the wrapper, so reparent it back out again before + * deleting the wrapper; otherwise the toplevel will get deleted + * twice (once implicitly by the deletion of the wrapper). + */ + + XUnmapWindow(winPtr->display, winPtr->window); + XReparentWindow(winPtr->display, winPtr->window, + XRootWindow(winPtr->display, winPtr->screenNum), 0, 0); + Tk_DestroyWindow((Tk_Window) wmPtr->wrapperPtr); + } + while (wmPtr->protPtr != NULL) { + ProtocolHandler *protPtr; + + protPtr = wmPtr->protPtr; + wmPtr->protPtr = protPtr->nextPtr; + Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC); + } + if (wmPtr->cmdArgv != NULL) { + ckfree((char *) wmPtr->cmdArgv); + } + if (wmPtr->clientMachine != NULL) { + ckfree((char *) wmPtr->clientMachine); + } + if (wmPtr->flags & WM_UPDATE_PENDING) { + Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr); + } + ckfree((char *) wmPtr); + winPtr->wmInfoPtr = NULL; +} + +/* + *-------------------------------------------------------------- + * + * TkWmSetClass -- + * + * This procedure is invoked whenever a top-level window's + * class is changed. If the window has been mapped then this + * procedure updates the window manager property for the + * class. If the window hasn't been mapped, the update is + * deferred until just before the first mapping. + * + * Results: + * None. + * + * Side effects: + * A window property may get updated. + * + *-------------------------------------------------------------- + */ + +void +TkWmSetClass(winPtr) + TkWindow *winPtr; /* Newly-created top-level window. */ +{ + if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) { + return; + } + + if (winPtr->classUid != NULL) { + XClassHint *classPtr; + + classPtr = XAllocClassHint(); + classPtr->res_name = winPtr->nameUid; + classPtr->res_class = winPtr->classUid; + XSetClassHint(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window, + classPtr); + XFree((char *) classPtr); + } +} + +/* + *---------------------------------------------------------------------- + * + * Tk_WmCmd -- + * + * This procedure is invoked to process the "wm" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * See the user documentation. + * + *---------------------------------------------------------------------- + */ + + /* ARGSUSED */ +int +Tk_WmCmd(clientData, interp, argc, argv) + ClientData clientData; /* Main window associated with + * interpreter. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ + Tk_Window tkwin = (Tk_Window) clientData; + TkWindow *winPtr; + register WmInfo *wmPtr; + int c; + size_t length; + + if (argc < 2) { + wrongNumArgs: + Tcl_AppendResult(interp, "wrong # args: should be \"", + argv[0], " option window ?arg ...?\"", (char *) NULL); + return TCL_ERROR; + } + c = argv[1][0]; + length = strlen(argv[1]); + if ((c == 't') && (strncmp(argv[1], "tracing", length) == 0) + && (length >= 3)) { + if ((argc != 2) && (argc != 3)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " tracing ?boolean?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 2) { + interp->result = (wmTracing) ? "on" : "off"; + return TCL_OK; + } + return Tcl_GetBoolean(interp, argv[2], &wmTracing); + } + + if (argc < 3) { + goto wrongNumArgs; + } + winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[2], tkwin); + if (winPtr == NULL) { + return TCL_ERROR; + } + if (!(winPtr->flags & TK_TOP_LEVEL)) { + Tcl_AppendResult(interp, "window \"", winPtr->pathName, + "\" isn't a top-level window", (char *) NULL); + return TCL_ERROR; + } + wmPtr = winPtr->wmInfoPtr; + if ((c == 'a') && (strncmp(argv[1], "aspect", length) == 0)) { + int numer1, denom1, numer2, denom2; + + if ((argc != 3) && (argc != 7)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " aspect window ?minNumer minDenom ", + "maxNumer maxDenom?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->sizeHintsFlags & PAspect) { + sprintf(interp->result, "%d %d %d %d", wmPtr->minAspect.x, + wmPtr->minAspect.y, wmPtr->maxAspect.x, + wmPtr->maxAspect.y); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->sizeHintsFlags &= ~PAspect; + } else { + if ((Tcl_GetInt(interp, argv[3], &numer1) != TCL_OK) + || (Tcl_GetInt(interp, argv[4], &denom1) != TCL_OK) + || (Tcl_GetInt(interp, argv[5], &numer2) != TCL_OK) + || (Tcl_GetInt(interp, argv[6], &denom2) != TCL_OK)) { + return TCL_ERROR; + } + if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) || + (denom2 <= 0)) { + interp->result = "aspect number can't be <= 0"; + return TCL_ERROR; + } + wmPtr->minAspect.x = numer1; + wmPtr->minAspect.y = denom1; + wmPtr->maxAspect.x = numer2; + wmPtr->maxAspect.y = denom2; + wmPtr->sizeHintsFlags |= PAspect; + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 'c') && (strncmp(argv[1], "client", length) == 0) + && (length >= 2)) { + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " client window ?name?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->clientMachine != NULL) { + interp->result = wmPtr->clientMachine; + } + return TCL_OK; + } + if (argv[3][0] == 0) { + if (wmPtr->clientMachine != NULL) { + ckfree((char *) wmPtr->clientMachine); + wmPtr->clientMachine = NULL; + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window, + Tk_InternAtom((Tk_Window) winPtr, + "WM_CLIENT_MACHINE")); + } + } + return TCL_OK; + } + if (wmPtr->clientMachine != NULL) { + ckfree((char *) wmPtr->clientMachine); + } + wmPtr->clientMachine = (char *) + ckalloc((unsigned) (strlen(argv[3]) + 1)); + strcpy(wmPtr->clientMachine, argv[3]); + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XTextProperty textProp; + if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp) + != 0) { + XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window, + &textProp); + XFree((char *) textProp.value); + } + } + } else if ((c == 'c') && (strncmp(argv[1], "colormapwindows", length) == 0) + && (length >= 3)) { + Window *cmapList; + TkWindow *winPtr2; + int count, i, windowArgc, gotToplevel; + char buffer[20], **windowArgv; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " colormapwindows window ?windowList?\"", + (char *) NULL); + return TCL_ERROR; + } + Tk_MakeWindowExist((Tk_Window) winPtr); + if (wmPtr->wrapperPtr == NULL) { + CreateWrapper(wmPtr); + } + if (argc == 3) { + if (XGetWMColormapWindows(winPtr->display, + wmPtr->wrapperPtr->window, &cmapList, &count) == 0) { + return TCL_OK; + } + for (i = 0; i < count; i++) { + if ((i == (count-1)) + && (wmPtr->flags & WM_ADDED_TOPLEVEL_COLORMAP)) { + break; + } + winPtr2 = (TkWindow *) Tk_IdToWindow(winPtr->display, + cmapList[i]); + if (winPtr2 == NULL) { + sprintf(buffer, "0x%lx", cmapList[i]); + Tcl_AppendElement(interp, buffer); + } else { + Tcl_AppendElement(interp, winPtr2->pathName); + } + } + XFree((char *) cmapList); + return TCL_OK; + } + if (Tcl_SplitList(interp, argv[3], &windowArgc, &windowArgv) + != TCL_OK) { + return TCL_ERROR; + } + cmapList = (Window *) ckalloc((unsigned) + ((windowArgc+1)*sizeof(Window))); + gotToplevel = 0; + for (i = 0; i < windowArgc; i++) { + winPtr2 = (TkWindow *) Tk_NameToWindow(interp, windowArgv[i], + tkwin); + if (winPtr2 == NULL) { + ckfree((char *) cmapList); + ckfree((char *) windowArgv); + return TCL_ERROR; + } + if (winPtr2 == winPtr) { + gotToplevel = 1; + } + if (winPtr2->window == None) { + Tk_MakeWindowExist((Tk_Window) winPtr2); + } + cmapList[i] = winPtr2->window; + } + if (!gotToplevel) { + wmPtr->flags |= WM_ADDED_TOPLEVEL_COLORMAP; + cmapList[windowArgc] = wmPtr->wrapperPtr->window; + windowArgc++; + } else { + wmPtr->flags &= ~WM_ADDED_TOPLEVEL_COLORMAP; + } + wmPtr->flags |= WM_COLORMAPS_EXPLICIT; + XSetWMColormapWindows(winPtr->display, wmPtr->wrapperPtr->window, + cmapList, windowArgc); + ckfree((char *) cmapList); + ckfree((char *) windowArgv); + return TCL_OK; + } else if ((c == 'c') && (strncmp(argv[1], "command", length) == 0) + && (length >= 3)) { + int cmdArgc; + char **cmdArgv; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " command window ?value?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->cmdArgv != NULL) { + interp->result = Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv); + interp->freeProc = TCL_DYNAMIC; + } + return TCL_OK; + } + if (argv[3][0] == 0) { + if (wmPtr->cmdArgv != NULL) { + ckfree((char *) wmPtr->cmdArgv); + wmPtr->cmdArgv = NULL; + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window, + Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND")); + } + } + return TCL_OK; + } + if (Tcl_SplitList(interp, argv[3], &cmdArgc, &cmdArgv) != TCL_OK) { + return TCL_ERROR; + } + if (wmPtr->cmdArgv != NULL) { + ckfree((char *) wmPtr->cmdArgv); + } + wmPtr->cmdArgc = cmdArgc; + wmPtr->cmdArgv = cmdArgv; + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XSetCommand(winPtr->display, wmPtr->wrapperPtr->window, + cmdArgv, cmdArgc); + } + } else if ((c == 'd') && (strncmp(argv[1], "deiconify", length) == 0)) { + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " deiconify window\"", (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->iconFor != NULL) { + Tcl_AppendResult(interp, "can't deiconify ", argv[2], + ": it is an icon for ", Tk_PathName(wmPtr->iconFor), + (char *) NULL); + return TCL_ERROR; + } + wmPtr->hints.initial_state = NormalState; + wmPtr->withdrawn = 0; + if (wmPtr->flags & WM_NEVER_MAPPED) { + return TCL_OK; + } + UpdateHints(winPtr); + Tk_MapWindow((Tk_Window) winPtr); + } else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0) + && (length >= 2)) { + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " focusmodel window ?active|passive?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + interp->result = wmPtr->hints.input ? "passive" : "active"; + return TCL_OK; + } + c = argv[3][0]; + length = strlen(argv[3]); + if ((c == 'a') && (strncmp(argv[3], "active", length) == 0)) { + wmPtr->hints.input = False; + } else if ((c == 'p') && (strncmp(argv[3], "passive", length) == 0)) { + wmPtr->hints.input = True; + } else { + Tcl_AppendResult(interp, "bad argument \"", argv[3], + "\": must be active or passive", (char *) NULL); + return TCL_ERROR; + } + UpdateHints(winPtr); + } else if ((c == 'f') && (strncmp(argv[1], "frame", length) == 0) + && (length >= 2)) { + Window window; + + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " frame window\"", (char *) NULL); + return TCL_ERROR; + } + window = wmPtr->reparent; + if (window == None) { + window = Tk_WindowId((Tk_Window) winPtr); + } + sprintf(interp->result, "0x%x", (unsigned int) window); + } else if ((c == 'g') && (strncmp(argv[1], "geometry", length) == 0) + && (length >= 2)) { + char xSign, ySign; + int width, height; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " geometry window ?newGeometry?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+'; + ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+'; + if (wmPtr->gridWin != NULL) { + width = wmPtr->reqGridWidth + (winPtr->changes.width + - winPtr->reqWidth)/wmPtr->widthInc; + height = wmPtr->reqGridHeight + (winPtr->changes.height + - winPtr->reqHeight)/wmPtr->heightInc; + } else { + width = winPtr->changes.width; + height = winPtr->changes.height; + } + sprintf(interp->result, "%dx%d%c%d%c%d", width, height, + xSign, wmPtr->x, ySign, wmPtr->y); + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->width = -1; + wmPtr->height = -1; + goto updateGeom; + } + return ParseGeometry(interp, argv[3], winPtr); + } else if ((c == 'g') && (strncmp(argv[1], "grid", length) == 0) + && (length >= 3)) { + int reqWidth, reqHeight, widthInc, heightInc; + + if ((argc != 3) && (argc != 7)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " grid window ?baseWidth baseHeight ", + "widthInc heightInc?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->sizeHintsFlags & PBaseSize) { + sprintf(interp->result, "%d %d %d %d", wmPtr->reqGridWidth, + wmPtr->reqGridHeight, wmPtr->widthInc, + wmPtr->heightInc); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + /* + * Turn off gridding and reset the width and height + * to make sense as ungridded numbers. + */ + + wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc); + if (wmPtr->width != -1) { + wmPtr->width = winPtr->reqWidth + (wmPtr->width + - wmPtr->reqGridWidth)*wmPtr->widthInc; + wmPtr->height = winPtr->reqHeight + (wmPtr->height + - wmPtr->reqGridHeight)*wmPtr->heightInc; + } + wmPtr->widthInc = 1; + wmPtr->heightInc = 1; + } else { + if ((Tcl_GetInt(interp, argv[3], &reqWidth) != TCL_OK) + || (Tcl_GetInt(interp, argv[4], &reqHeight) != TCL_OK) + || (Tcl_GetInt(interp, argv[5], &widthInc) != TCL_OK) + || (Tcl_GetInt(interp, argv[6], &heightInc) != TCL_OK)) { + return TCL_ERROR; + } + if (reqWidth < 0) { + interp->result = "baseWidth can't be < 0"; + return TCL_ERROR; + } + if (reqHeight < 0) { + interp->result = "baseHeight can't be < 0"; + return TCL_ERROR; + } + if (widthInc < 0) { + interp->result = "widthInc can't be < 0"; + return TCL_ERROR; + } + if (heightInc < 0) { + interp->result = "heightInc can't be < 0"; + return TCL_ERROR; + } + Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc, + heightInc); + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 'g') && (strncmp(argv[1], "group", length) == 0) + && (length >= 3)) { + Tk_Window tkwin2; + WmInfo *wmPtr2; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " group window ?pathName?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->hints.flags & WindowGroupHint) { + interp->result = wmPtr->leaderName; + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->hints.flags &= ~WindowGroupHint; + if (wmPtr->leaderName != NULL) { + ckfree(wmPtr->leaderName); + } + wmPtr->leaderName = NULL; + } else { + tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin); + if (tkwin2 == NULL) { + return TCL_ERROR; + } + while (!Tk_IsTopLevel(tkwin2)) { + /* + * Ensure that the group leader is actually a Tk toplevel. + */ + + tkwin2 = Tk_Parent(tkwin2); + } + Tk_MakeWindowExist(tkwin2); + wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr; + if (wmPtr2->wrapperPtr == NULL) { + CreateWrapper(wmPtr2); + } + wmPtr->hints.window_group = Tk_WindowId(wmPtr2->wrapperPtr); + wmPtr->hints.flags |= WindowGroupHint; + wmPtr->leaderName = ckalloc((unsigned) (strlen(argv[3])+1)); + strcpy(wmPtr->leaderName, argv[3]); + } + UpdateHints(winPtr); + } else if ((c == 'i') && (strncmp(argv[1], "iconbitmap", length) == 0) + && (length >= 5)) { + Pixmap pixmap; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconbitmap window ?bitmap?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->hints.flags & IconPixmapHint) { + interp->result = Tk_NameOfBitmap(winPtr->display, + wmPtr->hints.icon_pixmap); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + if (wmPtr->hints.icon_pixmap != None) { + Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap); + wmPtr->hints.icon_pixmap = None; + } + wmPtr->hints.flags &= ~IconPixmapHint; + } else { + pixmap = Tk_GetBitmap(interp, (Tk_Window) winPtr, + Tk_GetUid(argv[3])); + if (pixmap == None) { + return TCL_ERROR; + } + wmPtr->hints.icon_pixmap = pixmap; + wmPtr->hints.flags |= IconPixmapHint; + } + UpdateHints(winPtr); + } else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0) + && (length >= 5)) { + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconify window\"", (char *) NULL); + return TCL_ERROR; + } + if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) { + Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName, + "\": override-redirect flag is set", (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->master != None) { + Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName, + "\": it is a transient", (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->iconFor != NULL) { + Tcl_AppendResult(interp, "can't iconify ", argv[2], + ": it is an icon for ", Tk_PathName(wmPtr->iconFor), + (char *) NULL); + return TCL_ERROR; + } + wmPtr->hints.initial_state = IconicState; + if (wmPtr->flags & WM_NEVER_MAPPED) { + return TCL_OK; + } + if (wmPtr->withdrawn) { + UpdateHints(winPtr); + Tk_MapWindow((Tk_Window) winPtr); + wmPtr->withdrawn = 0; + } else { + if (XIconifyWindow(winPtr->display, wmPtr->wrapperPtr->window, + winPtr->screenNum) == 0) { + interp->result = + "couldn't send iconify message to window manager"; + return TCL_ERROR; + } + WaitForMapNotify(winPtr, 0); + } + } else if ((c == 'i') && (strncmp(argv[1], "iconmask", length) == 0) + && (length >= 5)) { + Pixmap pixmap; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconmask window ?bitmap?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->hints.flags & IconMaskHint) { + interp->result = Tk_NameOfBitmap(winPtr->display, + wmPtr->hints.icon_mask); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + if (wmPtr->hints.icon_mask != None) { + Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask); + } + wmPtr->hints.flags &= ~IconMaskHint; + } else { + pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3])); + if (pixmap == None) { + return TCL_ERROR; + } + wmPtr->hints.icon_mask = pixmap; + wmPtr->hints.flags |= IconMaskHint; + } + UpdateHints(winPtr); + } else if ((c == 'i') && (strncmp(argv[1], "iconname", length) == 0) + && (length >= 5)) { + if (argc > 4) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconname window ?newName?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + interp->result = (wmPtr->iconName != NULL) ? wmPtr->iconName : ""; + return TCL_OK; + } else { + wmPtr->iconName = ckalloc((unsigned) (strlen(argv[3]) + 1)); + strcpy(wmPtr->iconName, argv[3]); + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XSetIconName(winPtr->display, wmPtr->wrapperPtr->window, + wmPtr->iconName); + } + } + } else if ((c == 'i') && (strncmp(argv[1], "iconposition", length) == 0) + && (length >= 5)) { + int x, y; + + if ((argc != 3) && (argc != 5)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconposition window ?x y?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->hints.flags & IconPositionHint) { + sprintf(interp->result, "%d %d", wmPtr->hints.icon_x, + wmPtr->hints.icon_y); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->hints.flags &= ~IconPositionHint; + } else { + if ((Tcl_GetInt(interp, argv[3], &x) != TCL_OK) + || (Tcl_GetInt(interp, argv[4], &y) != TCL_OK)){ + return TCL_ERROR; + } + wmPtr->hints.icon_x = x; + wmPtr->hints.icon_y = y; + wmPtr->hints.flags |= IconPositionHint; + } + UpdateHints(winPtr); + } else if ((c == 'i') && (strncmp(argv[1], "iconwindow", length) == 0) + && (length >= 5)) { + Tk_Window tkwin2; + WmInfo *wmPtr2; + XSetWindowAttributes atts; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " iconwindow window ?pathName?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->icon != NULL) { + interp->result = Tk_PathName(wmPtr->icon); + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->hints.flags &= ~IconWindowHint; + if (wmPtr->icon != NULL) { + /* + * Remove the icon window relationship. In principle we + * should also re-enable button events for the window, but + * this doesn't work in general because the window manager + * is probably selecting on them (we'll get an error if + * we try to re-enable the events). So, just leave the + * icon window event-challenged; the user will have to + * recreate it if they want button events. + */ + + wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr; + wmPtr2->iconFor = NULL; + wmPtr2->withdrawn = 1; + wmPtr2->hints.initial_state = WithdrawnState; + } + wmPtr->icon = NULL; + } else { + tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin); + if (tkwin2 == NULL) { + return TCL_ERROR; + } + if (!Tk_IsTopLevel(tkwin2)) { + Tcl_AppendResult(interp, "can't use ", argv[3], + " as icon window: not at top level", (char *) NULL); + return TCL_ERROR; + } + wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr; + if (wmPtr2->iconFor != NULL) { + Tcl_AppendResult(interp, argv[3], " is already an icon for ", + Tk_PathName(wmPtr2->iconFor), (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->icon != NULL) { + WmInfo *wmPtr3 = ((TkWindow *) wmPtr->icon)->wmInfoPtr; + wmPtr3->iconFor = NULL; + wmPtr3->withdrawn = 1; + wmPtr3->hints.initial_state = WithdrawnState; + } + + /* + * Disable button events in the icon window: some window + * managers (like olvwm) want to get the events themselves, + * but X only allows one application at a time to receive + * button events for a window. + */ + + atts.event_mask = Tk_Attributes(tkwin2)->event_mask + & ~ButtonPressMask; + Tk_ChangeWindowAttributes(tkwin2, CWEventMask, &atts); + Tk_MakeWindowExist(tkwin2); + if (wmPtr2->wrapperPtr == NULL) { + CreateWrapper(wmPtr2); + } + wmPtr->hints.icon_window = Tk_WindowId(wmPtr2->wrapperPtr); + wmPtr->hints.flags |= IconWindowHint; + wmPtr->icon = tkwin2; + wmPtr2->iconFor = (Tk_Window) winPtr; + if (!wmPtr2->withdrawn && !(wmPtr2->flags & WM_NEVER_MAPPED)) { + wmPtr2->withdrawn = 0; + if (XWithdrawWindow(Tk_Display(tkwin2), + Tk_WindowId(wmPtr2->wrapperPtr), + Tk_ScreenNumber(tkwin2)) == 0) { + interp->result = + "couldn't send withdraw message to window manager"; + return TCL_ERROR; + } + WaitForMapNotify((TkWindow *) tkwin2, 0); + } + } + UpdateHints(winPtr); + } else if ((c == 'm') && (strncmp(argv[1], "maxsize", length) == 0) + && (length >= 2)) { + int width, height; + if ((argc != 3) && (argc != 5)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " maxsize window ?width height?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + GetMaxSize(wmPtr, &width, &height); + sprintf(interp->result, "%d %d", width, height); + return TCL_OK; + } + if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK) + || (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) { + return TCL_ERROR; + } + wmPtr->maxWidth = width; + wmPtr->maxHeight = height; + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 'm') && (strncmp(argv[1], "minsize", length) == 0) + && (length >= 2)) { + int width, height; + if ((argc != 3) && (argc != 5)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " minsize window ?width height?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + sprintf(interp->result, "%d %d", wmPtr->minWidth, + wmPtr->minHeight); + return TCL_OK; + } + if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK) + || (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) { + return TCL_ERROR; + } + wmPtr->minWidth = width; + wmPtr->minHeight = height; + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 'o') + && (strncmp(argv[1], "overrideredirect", length) == 0)) { + int boolean; + XSetWindowAttributes atts; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " overrideredirect window ?boolean?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) { + interp->result = "1"; + } else { + interp->result = "0"; + } + return TCL_OK; + } + if (Tcl_GetBoolean(interp, argv[3], &boolean) != TCL_OK) { + return TCL_ERROR; + } + atts.override_redirect = (boolean) ? True : False; + Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect, + &atts); + if (winPtr->wmInfoPtr->wrapperPtr != NULL) { + Tk_ChangeWindowAttributes( + (Tk_Window) winPtr->wmInfoPtr->wrapperPtr, + CWOverrideRedirect, &atts); + } + } else if ((c == 'p') && (strncmp(argv[1], "positionfrom", length) == 0) + && (length >= 2)) { + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " positionfrom window ?user/program?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->sizeHintsFlags & USPosition) { + interp->result = "user"; + } else if (wmPtr->sizeHintsFlags & PPosition) { + interp->result = "program"; + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->sizeHintsFlags &= ~(USPosition|PPosition); + } else { + c = argv[3][0]; + length = strlen(argv[3]); + if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) { + wmPtr->sizeHintsFlags &= ~PPosition; + wmPtr->sizeHintsFlags |= USPosition; + } else if ((c == 'p') && (strncmp(argv[3], "program", length) == 0)) { + wmPtr->sizeHintsFlags &= ~USPosition; + wmPtr->sizeHintsFlags |= PPosition; + } else { + Tcl_AppendResult(interp, "bad argument \"", argv[3], + "\": must be program or user", (char *) NULL); + return TCL_ERROR; + } + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0) + && (length >= 2)) { + register ProtocolHandler *protPtr, *prevPtr; + Atom protocol; + int cmdLength; + + if ((argc < 3) || (argc > 5)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " protocol window ?name? ?command?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + /* + * Return a list of all defined protocols for the window. + */ + for (protPtr = wmPtr->protPtr; protPtr != NULL; + protPtr = protPtr->nextPtr) { + Tcl_AppendElement(interp, + Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol)); + } + return TCL_OK; + } + protocol = Tk_InternAtom((Tk_Window) winPtr, argv[3]); + if (argc == 4) { + /* + * Return the command to handle a given protocol. + */ + for (protPtr = wmPtr->protPtr; protPtr != NULL; + protPtr = protPtr->nextPtr) { + if (protPtr->protocol == protocol) { + interp->result = protPtr->command; + return TCL_OK; + } + } + return TCL_OK; + } + + /* + * Delete any current protocol handler, then create a new + * one with the specified command, unless the command is + * empty. + */ + + for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL; + prevPtr = protPtr, protPtr = protPtr->nextPtr) { + if (protPtr->protocol == protocol) { + if (prevPtr == NULL) { + wmPtr->protPtr = protPtr->nextPtr; + } else { + prevPtr->nextPtr = protPtr->nextPtr; + } + Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC); + break; + } + } + cmdLength = strlen(argv[4]); + if (cmdLength > 0) { + protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength)); + protPtr->protocol = protocol; + protPtr->nextPtr = wmPtr->protPtr; + wmPtr->protPtr = protPtr; + protPtr->interp = interp; + strcpy(protPtr->command, argv[4]); + } + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + UpdateWmProtocols(wmPtr); + } + } else if ((c == 'r') && (strncmp(argv[1], "resizable", length) == 0)) { + int width, height; + + if ((argc != 3) && (argc != 5)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " resizable window ?width height?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + sprintf(interp->result, "%d %d", + (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) ? 0 : 1, + (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) ? 0 : 1); + return TCL_OK; + } + if ((Tcl_GetBoolean(interp, argv[3], &width) != TCL_OK) + || (Tcl_GetBoolean(interp, argv[4], &height) != TCL_OK)) { + return TCL_ERROR; + } + if (width) { + wmPtr->flags &= ~WM_WIDTH_NOT_RESIZABLE; + } else { + wmPtr->flags |= WM_WIDTH_NOT_RESIZABLE; + } + if (height) { + wmPtr->flags &= ~WM_HEIGHT_NOT_RESIZABLE; + } else { + wmPtr->flags |= WM_HEIGHT_NOT_RESIZABLE; + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0) + && (length >= 2)) { + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " sizefrom window ?user|program?\"", + (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->sizeHintsFlags & USSize) { + interp->result = "user"; + } else if (wmPtr->sizeHintsFlags & PSize) { + interp->result = "program"; + } + return TCL_OK; + } + if (*argv[3] == '\0') { + wmPtr->sizeHintsFlags &= ~(USSize|PSize); + } else { + c = argv[3][0]; + length = strlen(argv[3]); + if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) { + wmPtr->sizeHintsFlags &= ~PSize; + wmPtr->sizeHintsFlags |= USSize; + } else if ((c == 'p') + && (strncmp(argv[3], "program", length) == 0)) { + wmPtr->sizeHintsFlags &= ~USSize; + wmPtr->sizeHintsFlags |= PSize; + } else { + Tcl_AppendResult(interp, "bad argument \"", argv[3], + "\": must be program or user", (char *) NULL); + return TCL_ERROR; + } + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + goto updateGeom; + } else if ((c == 's') && (strncmp(argv[1], "state", length) == 0) + && (length >= 2)) { + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " state window\"", (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->iconFor != NULL) { + interp->result = "icon"; + } else if (wmPtr->withdrawn) { + interp->result = "withdrawn"; + } else if (Tk_IsMapped((Tk_Window) winPtr) + || ((wmPtr->flags & WM_NEVER_MAPPED) + && (wmPtr->hints.initial_state == NormalState))) { + interp->result = "normal"; + } else { + interp->result = "iconic"; + } + } else if ((c == 't') && (strncmp(argv[1], "title", length) == 0) + && (length >= 2)) { + if (argc > 4) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " title window ?newTitle?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + interp->result = (wmPtr->title != NULL) ? wmPtr->title + : winPtr->nameUid; + return TCL_OK; + } else { + wmPtr->title = ckalloc((unsigned) (strlen(argv[3]) + 1)); + strcpy(wmPtr->title, argv[3]); + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XTextProperty textProp; + + if (XStringListToTextProperty(&wmPtr->title, 1, + &textProp) != 0) { + XSetWMName(winPtr->display, wmPtr->wrapperPtr->window, + &textProp); + XFree((char *) textProp.value); + } + } + } + } else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0) + && (length >= 3)) { + Tk_Window master; + WmInfo *wmPtr2; + + if ((argc != 3) && (argc != 4)) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " transient window ?master?\"", (char *) NULL); + return TCL_ERROR; + } + if (argc == 3) { + if (wmPtr->master != None) { + interp->result = wmPtr->masterWindowName; + } + return TCL_OK; + } + if (argv[3][0] == '\0') { + wmPtr->master = None; + if (wmPtr->masterWindowName != NULL) { + ckfree(wmPtr->masterWindowName); + } + wmPtr->masterWindowName = NULL; + } else { + master = Tk_NameToWindow(interp, argv[3], tkwin); + if (master == NULL) { + return TCL_ERROR; + } + while (!Tk_IsTopLevel(master)) { + /* + * Ensure that the master window is actually a Tk toplevel. + */ + + master = Tk_Parent(master); + } + Tk_MakeWindowExist(master); + wmPtr2 = ((TkWindow *) master)->wmInfoPtr; + if (wmPtr2->wrapperPtr == NULL) { + CreateWrapper(wmPtr2); + } + wmPtr->master = Tk_WindowId(wmPtr2->wrapperPtr); + wmPtr->masterWindowName = ckalloc((unsigned) (strlen(argv[3])+1)); + strcpy(wmPtr->masterWindowName, argv[3]); + } + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window, + wmPtr->master); + } + } else if ((c == 'w') && (strncmp(argv[1], "withdraw", length) == 0) + && (length >= 2)) { + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: must be \"", + argv[0], " withdraw window\"", (char *) NULL); + return TCL_ERROR; + } + if (wmPtr->iconFor != NULL) { + Tcl_AppendResult(interp, "can't withdraw ", argv[2], + ": it is an icon for ", Tk_PathName(wmPtr->iconFor), + (char *) NULL); + return TCL_ERROR; + } + wmPtr->hints.initial_state = WithdrawnState; + wmPtr->withdrawn = 1; + if (wmPtr->flags & WM_NEVER_MAPPED) { + return TCL_OK; + } + if (XWithdrawWindow(winPtr->display, wmPtr->wrapperPtr->window, + winPtr->screenNum) == 0) { + interp->result = + "couldn't send withdraw message to window manager"; + return TCL_ERROR; + } + WaitForMapNotify(winPtr, 0); + } else { + Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1], + "\": must be aspect, client, command, deiconify, ", + "focusmodel, frame, geometry, grid, group, iconbitmap, ", + "iconify, iconmask, iconname, iconposition, ", + "iconwindow, maxsize, minsize, overrideredirect, ", + "positionfrom, protocol, resizable, sizefrom, state, title, ", + "transient, or withdraw", + (char *) NULL); + return TCL_ERROR; + } + return TCL_OK; + + updateGeom: + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * Tk_SetGrid -- + * + * This procedure is invoked by a widget when it wishes to set a grid + * coordinate system that controls the size of a top-level window. + * It provides a C interface equivalent to the "wm grid" command and + * is usually asscoiated with the -setgrid option. + * + * Results: + * None. + * + * Side effects: + * Grid-related information will be passed to the window manager, so + * that the top-level window associated with tkwin will resize on + * even grid units. If some other window already controls gridding + * for the top-level window then this procedure call has no effect. + * + *---------------------------------------------------------------------- + */ + +void +Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc) + Tk_Window tkwin; /* Token for window. New window mgr info + * will be posted for the top-level window + * associated with this window. */ + int reqWidth; /* Width (in grid units) corresponding to + * the requested geometry for tkwin. */ + int reqHeight; /* Height (in grid units) corresponding to + * the requested geometry for tkwin. */ + int widthInc, heightInc; /* Pixel increments corresponding to a + * change of one grid unit. */ +{ + TkWindow *winPtr = (TkWindow *) tkwin; + register WmInfo *wmPtr; + + /* + * Find the top-level window for tkwin, plus the window manager + * information. + */ + + while (!(winPtr->flags & TK_TOP_LEVEL)) { + winPtr = winPtr->parentPtr; + if (winPtr == NULL) { + /* + * The window is being deleted... just skip this operation. + */ + + return; + } + } + wmPtr = winPtr->wmInfoPtr; + + if ((wmPtr->gridWin != NULL) && (wmPtr->gridWin != tkwin)) { + return; + } + + if ((wmPtr->reqGridWidth == reqWidth) + && (wmPtr->reqGridHeight == reqHeight) + && (wmPtr->widthInc == widthInc) + && (wmPtr->heightInc == heightInc) + && ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc)) + == (PBaseSize|PResizeInc) )) { + return; + } + + /* + * If gridding was previously off, then forget about any window + * size requests made by the user or via "wm geometry": these are + * in pixel units and there's no easy way to translate them to + * grid units since the new requested size of the top-level window in + * pixels may not yet have been registered yet (it may filter up + * the hierarchy in DoWhenIdle handlers). However, if the window + * has never been mapped yet then just leave the window size alone: + * assume that it is intended to be in grid units but just happened + * to have been specified before this procedure was called. + */ + + if ((wmPtr->gridWin == NULL) && !(wmPtr->flags & WM_NEVER_MAPPED)) { + wmPtr->width = -1; + wmPtr->height = -1; + } + + /* + * Set the new gridding information, and start the process of passing + * all of this information to the window manager. + */ + + wmPtr->gridWin = tkwin; + wmPtr->reqGridWidth = reqWidth; + wmPtr->reqGridHeight = reqHeight; + wmPtr->widthInc = widthInc; + wmPtr->heightInc = heightInc; + wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc; + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * Tk_UnsetGrid -- + * + * This procedure cancels the effect of a previous call + * to Tk_SetGrid. + * + * Results: + * None. + * + * Side effects: + * If tkwin currently controls gridding for its top-level window, + * gridding is cancelled for that top-level window; if some other + * window controls gridding then this procedure has no effect. + * + *---------------------------------------------------------------------- + */ + +void +Tk_UnsetGrid(tkwin) + Tk_Window tkwin; /* Token for window that is currently + * controlling gridding. */ +{ + TkWindow *winPtr = (TkWindow *) tkwin; + register WmInfo *wmPtr; + + /* + * Find the top-level window for tkwin, plus the window manager + * information. + */ + + while (!(winPtr->flags & TK_TOP_LEVEL)) { + winPtr = winPtr->parentPtr; + if (winPtr == NULL) { + /* + * The window is being deleted... just skip this operation. + */ + + return; + } + } + wmPtr = winPtr->wmInfoPtr; + if (tkwin != wmPtr->gridWin) { + return; + } + + wmPtr->gridWin = NULL; + wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc); + if (wmPtr->width != -1) { + wmPtr->width = winPtr->reqWidth + (wmPtr->width + - wmPtr->reqGridWidth)*wmPtr->widthInc; + wmPtr->height = winPtr->reqHeight + (wmPtr->height + - wmPtr->reqGridHeight)*wmPtr->heightInc; + } + wmPtr->widthInc = 1; + wmPtr->heightInc = 1; + + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * ConfigureEvent -- + * + * This procedure is called to handle ConfigureNotify events on + * wrapper windows. + * + * Results: + * None. + * + * Side effects: + * Information gets updated in the WmInfo structure for the window + * and the toplevel itself gets repositioned within the wrapper. + * + *---------------------------------------------------------------------- + */ + +static void +ConfigureEvent(wmPtr, configEventPtr) + WmInfo *wmPtr; /* Information about toplevel window. */ + XConfigureEvent *configEventPtr; /* Event that just occurred for + * wmPtr->wrapperPtr. */ +{ + TkWindow *wrapperPtr = wmPtr->wrapperPtr; + TkWindow *winPtr = wmPtr->winPtr; + + /* + * Update size information from the event. There are a couple of + * tricky points here: + * + * 1. If the user changed the size externally then set wmPtr->width + * and wmPtr->height just as if a "wm geometry" command had been + * invoked with the same information. + * 2. However, if the size is changing in response to a request + * coming from us (WM_SYNC_PENDING is set), then don't set wmPtr->width + * or wmPtr->height if they were previously -1 (otherwise the + * window will stop tracking geometry manager requests). + */ + + if (((wrapperPtr->changes.width != configEventPtr->width) + || (wrapperPtr->changes.height != configEventPtr->height)) + && !(wmPtr->flags & WM_SYNC_PENDING)){ + if (wmTracing) { + printf("TopLevelEventProc: user changed %s size to %dx%d\n", + winPtr->pathName, configEventPtr->width, + configEventPtr->height); + } + if ((wmPtr->width == -1) + && (configEventPtr->width == winPtr->reqWidth)) { + /* + * Don't set external width, since the user didn't change it + * from what the widgets asked for. + */ + } else { + /* + * Note: if this window is embedded then don't set the external + * size, since it came from the containing application, not the + * user. In this case we want to keep sending our size requests + * to the containing application; if the user fixes the size + * of that application then it will still percolate down to us + * in the right way. + */ + + if (!(winPtr->flags & TK_EMBEDDED)) { + if (wmPtr->gridWin != NULL) { + wmPtr->width = wmPtr->reqGridWidth + + (configEventPtr->width + - winPtr->reqWidth)/wmPtr->widthInc; + if (wmPtr->width < 0) { + wmPtr->width = 0; + } + } else { + wmPtr->width = configEventPtr->width; + } + } + } + if ((wmPtr->height == -1) + && (configEventPtr->height == + (winPtr->reqHeight + wmPtr->menuHeight))) { + /* + * Don't set external height, since the user didn't change it + * from what the widgets asked for. + */ + } else { + /* + * See note for wmPtr->width about not setting external size + * for embedded windows. + */ + + if (!(winPtr->flags & TK_EMBEDDED)) { + if (wmPtr->gridWin != NULL) { + wmPtr->height = wmPtr->reqGridHeight + + (configEventPtr->height - wmPtr->menuHeight + - winPtr->reqHeight)/wmPtr->heightInc; + if (wmPtr->height < 0) { + wmPtr->height = 0; + } + } else { + wmPtr->height = configEventPtr->height - wmPtr->menuHeight; + } + } + } + wmPtr->configWidth = configEventPtr->width; + wmPtr->configHeight = configEventPtr->height; + } + + if (wmTracing) { + printf("ConfigureEvent: %s x = %d y = %d, width = %d, height = %d", + winPtr->pathName, configEventPtr->x, configEventPtr->y, + configEventPtr->width, configEventPtr->height); + printf(" send_event = %d, serial = %ld\n", configEventPtr->send_event, + configEventPtr->serial); + } + wrapperPtr->changes.width = configEventPtr->width; + wrapperPtr->changes.height = configEventPtr->height; + wrapperPtr->changes.border_width = configEventPtr->border_width; + wrapperPtr->changes.sibling = configEventPtr->above; + wrapperPtr->changes.stack_mode = Above; + + /* + * Reparenting window managers make life difficult. If the + * window manager reparents a top-level window then the x and y + * information that comes in events for the window is wrong: + * it gives the location of the window inside its decorative + * parent, rather than the location of the window in root + * coordinates, which is what we want. Window managers + * are supposed to send synthetic events with the correct + * information, but ICCCM doesn't require them to do this + * under all conditions, and the information provided doesn't + * include everything we need here. So, the code below + * maintains a bunch of information about the parent window. + * If the window hasn't been reparented, we pretend that + * there is a parent shrink-wrapped around the window. + */ + + if ((wmPtr->reparent == None) || !ComputeReparentGeometry(wmPtr)) { + wmPtr->parentWidth = configEventPtr->width + + 2*configEventPtr->border_width; + wmPtr->parentHeight = configEventPtr->height + + 2*configEventPtr->border_width; + wrapperPtr->changes.x = wmPtr->x = configEventPtr->x; + wrapperPtr->changes.y = wmPtr->y = configEventPtr->y; + if (wmPtr->flags & WM_NEGATIVE_X) { + wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth); + } + if (wmPtr->flags & WM_NEGATIVE_Y) { + wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight); + } + } + + /* + * Make sure that the toplevel and menubar are properly positioned within + * the wrapper. + */ + + XMoveResizeWindow(winPtr->display, winPtr->window, 0, + wmPtr->menuHeight, (unsigned) wrapperPtr->changes.width, + (unsigned) (wrapperPtr->changes.height - wmPtr->menuHeight)); + if ((wmPtr->menubar != NULL) + && ((Tk_Width(wmPtr->menubar) != wrapperPtr->changes.width) + || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) { + Tk_MoveResizeWindow(wmPtr->menubar, 0, 0, wrapperPtr->changes.width, + wmPtr->menuHeight); + } + + /* + * Update the coordinates in the toplevel (they should refer to the + * position in root window coordinates, not the coordinates of the + * wrapper window). Then synthesize a ConfigureNotify event to tell + * the application about the change. + */ + + winPtr->changes.x = wrapperPtr->changes.x; + winPtr->changes.y = wrapperPtr->changes.y + wmPtr->menuHeight; + winPtr->changes.width = wrapperPtr->changes.width; + winPtr->changes.height = wrapperPtr->changes.height - wmPtr->menuHeight; + TkDoConfigureNotify(winPtr); +} + +/* + *---------------------------------------------------------------------- + * + * ReparentEvent -- + * + * This procedure is called to handle ReparentNotify events on + * wrapper windows. + * + * Results: + * None. + * + * Side effects: + * Information gets updated in the WmInfo structure for the window. + * + *---------------------------------------------------------------------- + */ + +static void +ReparentEvent(wmPtr, reparentEventPtr) + WmInfo *wmPtr; /* Information about toplevel window. */ + XReparentEvent *reparentEventPtr; /* Event that just occurred for + * wmPtr->wrapperPtr. */ +{ + TkWindow *wrapperPtr = wmPtr->wrapperPtr; + Window vRoot, ancestor, *children, dummy2, *virtualRootPtr; + Atom actualType; + int actualFormat; + unsigned long numItems, bytesAfter; + unsigned int dummy; + Tk_ErrorHandler handler; + + /* + * Identify the root window for wrapperPtr. This is tricky because of + * virtual root window managers like tvtwm. If the window has a + * property named __SWM_ROOT or __WM_ROOT then this property gives + * the id for a virtual root window that should be used instead of + * the root window of the screen. + */ + + vRoot = RootWindow(wrapperPtr->display, wrapperPtr->screenNum); + wmPtr->vRoot = None; + handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + if (((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window, + Tk_InternAtom((Tk_Window) wrapperPtr, "__WM_ROOT"), 0, (long) 1, + False, XA_WINDOW, &actualType, &actualFormat, &numItems, + &bytesAfter, (unsigned char **) &virtualRootPtr) == Success) + && (actualType == XA_WINDOW)) + || ((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window, + Tk_InternAtom((Tk_Window) wrapperPtr, "__SWM_ROOT"), 0, (long) 1, + False, XA_WINDOW, &actualType, &actualFormat, &numItems, + &bytesAfter, (unsigned char **) &virtualRootPtr) == Success) + && (actualType == XA_WINDOW))) { + if ((actualFormat == 32) && (numItems == 1)) { + vRoot = wmPtr->vRoot = *virtualRootPtr; + } else if (wmTracing) { + printf("%s format %d numItems %ld\n", + "ReparentEvent got bogus VROOT property:", actualFormat, + numItems); + } + XFree((char *) virtualRootPtr); + } + Tk_DeleteErrorHandler(handler); + + if (wmTracing) { + printf("ReparentEvent: %s reparented to 0x%x, vRoot = 0x%x\n", + wmPtr->winPtr->pathName, + (unsigned int) reparentEventPtr->parent, (unsigned int) vRoot); + } + + /* + * Fetch correct geometry information for the new virtual root. + */ + + UpdateVRootGeometry(wmPtr); + + /* + * If the window's new parent is the root window, then mark it as + * no longer reparented. + */ + + if (reparentEventPtr->parent == vRoot) { + noReparent: + wmPtr->reparent = None; + wmPtr->parentWidth = wrapperPtr->changes.width; + wmPtr->parentHeight = wrapperPtr->changes.height; + wmPtr->xInParent = wmPtr->yInParent = 0; + wrapperPtr->changes.x = reparentEventPtr->x; + wrapperPtr->changes.y = reparentEventPtr->y; + return; + } + + /* + * Search up the window hierarchy to find the ancestor of this + * window that is just below the (virtual) root. This is tricky + * because it's possible that things have changed since the event + * was generated so that the ancestry indicated by the event no + * longer exists. If this happens then an error will occur and + * we just discard the event (there will be a more up-to-date + * ReparentNotify event coming later). + */ + + handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + wmPtr->reparent = reparentEventPtr->parent; + while (1) { + if (XQueryTree(wrapperPtr->display, wmPtr->reparent, &dummy2, &ancestor, + &children, &dummy) == 0) { + Tk_DeleteErrorHandler(handler); + goto noReparent; + } + XFree((char *) children); + if ((ancestor == vRoot) || + (ancestor == RootWindow(wrapperPtr->display, + wrapperPtr->screenNum))) { + break; + } + wmPtr->reparent = ancestor; + } + Tk_DeleteErrorHandler(handler); + + if (!ComputeReparentGeometry(wmPtr)) { + goto noReparent; + } +} + +/* + *---------------------------------------------------------------------- + * + * ComputeReparentGeometry -- + * + * This procedure is invoked to recompute geometry information + * related to a reparented top-level window, such as the position + * and total size of the parent and the position within it of + * the top-level window. + * + * Results: + * The return value is 1 if everything completed successfully + * and 0 if an error occurred while querying information about + * winPtr's parents. In this case winPtr is marked as no longer + * being reparented. + * + * Side effects: + * Geometry information in wmPtr, wmPtr->winPtr, and + * wmPtr->wrapperPtr gets updated. + * + *---------------------------------------------------------------------- + */ + +static int +ComputeReparentGeometry(wmPtr) + WmInfo *wmPtr; /* Information about toplevel window + * whose reparent info is to be recomputed. */ +{ + TkWindow *wrapperPtr = wmPtr->wrapperPtr; + int width, height, bd; + unsigned int dummy; + int xOffset, yOffset, x, y; + Window dummy2; + Status status; + Tk_ErrorHandler handler; + + handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + (void) XTranslateCoordinates(wrapperPtr->display, wrapperPtr->window, + wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2); + status = XGetGeometry(wrapperPtr->display, wmPtr->reparent, + &dummy2, &x, &y, (unsigned int *) &width, + (unsigned int *) &height, (unsigned int *) &bd, &dummy); + Tk_DeleteErrorHandler(handler); + if (status == 0) { + /* + * It appears that the reparented parent went away and + * no-one told us. Reset the window to indicate that + * it's not reparented. + */ + wmPtr->reparent = None; + wmPtr->xInParent = wmPtr->yInParent = 0; + return 0; + } + wmPtr->xInParent = xOffset + bd; + wmPtr->yInParent = yOffset + bd; + wmPtr->parentWidth = width + 2*bd; + wmPtr->parentHeight = height + 2*bd; + + /* + * Some tricky issues in updating wmPtr->x and wmPtr->y: + * + * 1. Don't update them if the event occurred because of something + * we did (i.e. WM_SYNC_PENDING and WM_MOVE_PENDING are both set). + * This is because window managers treat coords differently than Tk, + * and no two window managers are alike. If the window manager moved + * the window because we told it to, remember the coordinates we told + * it, not the ones it actually moved it to. This allows us to move + * the window back to the same coordinates later and get the same + * result. Without this check, windows can "walk" across the screen + * under some conditions. + * + * 2. Don't update wmPtr->x and wmPtr->y unless wrapperPtr->changes.x + * or wrapperPtr->changes.y has changed (otherwise a size change can + * spoof us into thinking that the position changed too and defeat + * the intent of (1) above. + * + * (As of 9/96 the above 2 comments appear to be stale. They're + * being left in place as a reminder of what was once true (and + * perhaps should still be true?)). + * + * 3. Ignore size changes coming from the window system if we're + * about to change the size ourselves but haven't seen the event for + * it yet: our size change is supposed to take priority. + */ + + if (!(wmPtr->flags & WM_MOVE_PENDING) + && ((wmPtr->wrapperPtr->changes.x != (x + wmPtr->xInParent)) + || (wmPtr->wrapperPtr->changes.y != (y + wmPtr->yInParent)))) { + wmPtr->x = x; + if (wmPtr->flags & WM_NEGATIVE_X) { + wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth); + } + wmPtr->y = y; + if (wmPtr->flags & WM_NEGATIVE_Y) { + wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight); + } + } + + wmPtr->wrapperPtr->changes.x = x + wmPtr->xInParent; + wmPtr->wrapperPtr->changes.y = y + wmPtr->yInParent; + if (wmTracing) { + printf("wrapperPtr coords %d,%d, wmPtr coords %d,%d, offsets %d %d\n", + wrapperPtr->changes.x, wrapperPtr->changes.y, + wmPtr->x, wmPtr->y, wmPtr->xInParent, wmPtr->yInParent); + } + return 1; +} + +/* + *---------------------------------------------------------------------- + * + * WrapperEventProc -- + * + * This procedure is invoked by the event loop when a wrapper window + * is restructured. + * + * Results: + * None. + * + * Side effects: + * Tk's internal data structures for the window get modified to + * reflect the structural change. + * + *---------------------------------------------------------------------- + */ + +static void +WrapperEventProc(clientData, eventPtr) + ClientData clientData; /* Information about toplevel window. */ + XEvent *eventPtr; /* Event that just happened. */ +{ + WmInfo *wmPtr = (WmInfo *) clientData; + XEvent mapEvent; + + wmPtr->flags |= WM_VROOT_OFFSET_STALE; + if (eventPtr->type == DestroyNotify) { + Tk_ErrorHandler handler; + + if (!(wmPtr->wrapperPtr->flags & TK_ALREADY_DEAD)) { + /* + * A top-level window was deleted externally (e.g., by the window + * manager). This is probably not a good thing, but cleanup as + * best we can. The error handler is needed because + * Tk_DestroyWindow will try to destroy the window, but of course + * it's already gone. + */ + + handler = Tk_CreateErrorHandler(wmPtr->winPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + Tk_DestroyWindow((Tk_Window) wmPtr->winPtr); + Tk_DeleteErrorHandler(handler); + } + if (wmTracing) { + printf("TopLevelEventProc: %s deleted\n", wmPtr->winPtr->pathName); + } + } else if (eventPtr->type == ConfigureNotify) { + /* + * Ignore the event if the window has never been mapped yet. + * Such an event occurs only in weird cases like changing the + * internal border width of a top-level window, which results + * in a synthetic Configure event. These events are not relevant + * to us, and if we process them confusion may result (e.g. we + * may conclude erroneously that the user repositioned or resized + * the window). + */ + + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + ConfigureEvent(wmPtr, &eventPtr->xconfigure); + } + } else if (eventPtr->type == MapNotify) { + wmPtr->wrapperPtr->flags |= TK_MAPPED; + wmPtr->winPtr->flags |= TK_MAPPED; + XMapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window); + goto doMapEvent; + } else if (eventPtr->type == UnmapNotify) { + wmPtr->wrapperPtr->flags &= ~TK_MAPPED; + wmPtr->winPtr->flags &= ~TK_MAPPED; + XUnmapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window); + goto doMapEvent; + } else if (eventPtr->type == ReparentNotify) { + ReparentEvent(wmPtr, &eventPtr->xreparent); + } + return; + + doMapEvent: + mapEvent = *eventPtr; + mapEvent.xmap.event = wmPtr->winPtr->window; + mapEvent.xmap.window = wmPtr->winPtr->window; + Tk_HandleEvent(&mapEvent); +} + +/* + *---------------------------------------------------------------------- + * + * TopLevelReqProc -- + * + * This procedure is invoked by the geometry manager whenever + * the requested size for a top-level window is changed. + * + * Results: + * None. + * + * Side effects: + * Arrange for the window to be resized to satisfy the request + * (this happens as a when-idle action). + * + *---------------------------------------------------------------------- + */ + + /* ARGSUSED */ +static void +TopLevelReqProc(dummy, tkwin) + ClientData dummy; /* Not used. */ + Tk_Window tkwin; /* Information about window. */ +{ + TkWindow *winPtr = (TkWindow *) tkwin; + WmInfo *wmPtr; + + wmPtr = winPtr->wmInfoPtr; + + if ((wmPtr->width >= 0) && (wmPtr->height >= 0)) { + /* + * Explicit dimensions have been set for this window, so we + * should ignore the geometry request. It's actually important + * to ignore the geometry request because, due to quirks in + * window managers, invoking UpdateGeometryInfo may cause the + * window to move. For example, if "wm geometry -10-20" was + * invoked, the window may be positioned incorrectly the first + * time it appears (because we didn't know the proper width of + * the window manager borders); if we invoke UpdateGeometryInfo + * again, the window will be positioned correctly, which may + * cause it to jump on the screen. + */ + + return; + } + + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } + + /* + * If the window isn't being positioned by its upper left corner + * then we have to move it as well. + */ + + if (wmPtr->flags & (WM_NEGATIVE_X | WM_NEGATIVE_Y)) { + wmPtr->flags |= WM_MOVE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * UpdateGeometryInfo -- + * + * This procedure is invoked when a top-level window is first + * mapped, and also as a when-idle procedure, to bring the + * geometry and/or position of a top-level window back into + * line with what has been requested by the user and/or widgets. + * This procedure doesn't return until the window manager has + * responded to the geometry change. + * + * Results: + * None. + * + * Side effects: + * The size and location of both the toplevel window and its wrapper + * may change, unless the WM prevents that from happening. + * + *---------------------------------------------------------------------- + */ + +static void +UpdateGeometryInfo(clientData) + ClientData clientData; /* Pointer to the window's record. */ +{ + register TkWindow *winPtr = (TkWindow *) clientData; + register WmInfo *wmPtr = winPtr->wmInfoPtr; + int x, y, width, height; + unsigned long serial; + + wmPtr->flags &= ~WM_UPDATE_PENDING; + + /* + * Compute the new size for the top-level window. See the + * user documentation for details on this, but the size + * requested depends on (a) the size requested internally + * by the window's widgets, (b) the size requested by the + * user in a "wm geometry" command or via wm-based interactive + * resizing (if any), and (c) whether or not the window is + * gridded. Don't permit sizes <= 0 because this upsets + * the X server. + */ + + if (wmPtr->width == -1) { + width = winPtr->reqWidth; + } else if (wmPtr->gridWin != NULL) { + width = winPtr->reqWidth + + (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc; + } else { + width = wmPtr->width; + } + if (width <= 0) { + width = 1; + } + if (wmPtr->height == -1) { + height = winPtr->reqHeight; + } else if (wmPtr->gridWin != NULL) { + height = winPtr->reqHeight + + (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc; + } else { + height = wmPtr->height; + } + if (height <= 0) { + height = 1; + } + + /* + * Compute the new position for the upper-left pixel of the window's + * decorative frame. This is tricky, because we need to include the + * border widths supplied by a reparented parent in this calculation, + * but can't use the parent's current overall size since that may + * change as a result of this code. + */ + + if (wmPtr->flags & WM_NEGATIVE_X) { + x = wmPtr->vRootWidth - wmPtr->x + - (width + (wmPtr->parentWidth - winPtr->changes.width)); + } else { + x = wmPtr->x; + } + if (wmPtr->flags & WM_NEGATIVE_Y) { + y = wmPtr->vRootHeight - wmPtr->y + - (height + (wmPtr->parentHeight - winPtr->changes.height)); + } else { + y = wmPtr->y; + } + + /* + * If the window's size is going to change and the window is + * supposed to not be resizable by the user, then we have to + * update the size hints. There may also be a size-hint-update + * request pending from somewhere else, too. + */ + + if (((width != winPtr->changes.width) + || (height != winPtr->changes.height)) + && (wmPtr->gridWin == NULL) + && ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) { + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + } + if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) { + UpdateSizeHints(winPtr); + } + + /* + * Reconfigure the wrapper if it isn't already configured correctly. + * A few tricky points: + * + * 1. If the window is embeddedand the container is also in this + * process, don't actually reconfigure the window; just pass the + * desired size on to the container. Also, zero out any position + * information, since embedded windows are not allowed to move. + * 2. Sometimes the window manager will give us a different size + * than we asked for (e.g. mwm has a minimum size for windows), so + * base the size check on what we *asked for* last time, not what we + * got. + * 3. Can't just reconfigure always, because we may not get a + * ConfigureNotify event back if nothing changed, so + * WaitForConfigureNotify will hang a long time. + * 4. Don't move window unless a new position has been requested for + * it. This is because of "features" in some window managers (e.g. + * twm, as of 4/24/91) where they don't interpret coordinates + * according to ICCCM. Moving a window to its current location may + * cause it to shift position on the screen. + */ + + if ((winPtr->flags & (TK_EMBEDDED|TK_BOTH_HALVES)) + == (TK_EMBEDDED|TK_BOTH_HALVES)) { + /* + * This window is embedded and the container is also in this + * process, so we don't need to do anything special about the + * geometry, except to make sure that the desired size is known + * by the container. Also, zero out any position information, + * since embedded windows are not allowed to move. + */ + + wmPtr->x = wmPtr->y = 0; + wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y); + height += wmPtr->menuHeight; + Tk_GeometryRequest((Tk_Window) TkpGetOtherWindow(winPtr), + width, height); + return; + } + serial = NextRequest(winPtr->display); + height += wmPtr->menuHeight; + if (wmPtr->flags & WM_MOVE_PENDING) { + if ((x == winPtr->changes.x) && (y == winPtr->changes.y) + && (width == wmPtr->wrapperPtr->changes.width) + && (height == wmPtr->wrapperPtr->changes.height)) { + /* + * The window already has the correct geometry, so don't bother + * to configure it; the X server appears to ignore these + * requests, so we won't get back a ConfigureNotify and the + * WaitForConfigureNotify call below will hang for a while. + */ + + wmPtr->flags &= ~WM_MOVE_PENDING; + return; + } + wmPtr->configWidth = width; + wmPtr->configHeight = height; + if (wmTracing) { + printf("UpdateGeometryInfo moving to %d %d, resizing to %d x %d,\n", + x, y, width, height); + } + XMoveResizeWindow(winPtr->display, wmPtr->wrapperPtr->window, x, y, + (unsigned) width, (unsigned) height); + } else if ((width != wmPtr->configWidth) + || (height != wmPtr->configHeight)) { + if ((width == wmPtr->wrapperPtr->changes.width) + && (height == wmPtr->wrapperPtr->changes.height)) { + /* + * The window is already just the size we want, so don't bother + * to configure it; the X server appears to ignore these + * requests, so we won't get back a ConfigureNotify and the + * WaitForConfigureNotify call below will hang for a while. + */ + + return; + } + wmPtr->configWidth = width; + wmPtr->configHeight = height; + if (wmTracing) { + printf("UpdateGeometryInfo resizing to %d x %d\n", width, height); + } + XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window, + (unsigned) width, (unsigned) height); + } else if ((wmPtr->menubar != NULL) + && ((Tk_Width(wmPtr->menubar) != wmPtr->wrapperPtr->changes.width) + || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) { + /* + * It is possible that the window's overall size has not changed + * but the menu size has. + */ + + Tk_MoveResizeWindow(wmPtr->menubar, 0, 0, + wmPtr->wrapperPtr->changes.width, wmPtr->menuHeight); + XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window, + (unsigned) width, (unsigned) height); + } else { + return; + } + + /* + * Wait for the configure operation to complete. Don't need to do + * this, however, if the window is about to be mapped: it will be + * taken care of elsewhere. + */ + + if (!(wmPtr->flags & WM_ABOUT_TO_MAP)) { + WaitForConfigureNotify(winPtr, serial); + } +} + +/* + *-------------------------------------------------------------- + * + * UpdateSizeHints -- + * + * This procedure is called to update the window manager's + * size hints information from the information in a WmInfo + * structure. + * + * Results: + * None. + * + * Side effects: + * Properties get changed for winPtr. + * + *-------------------------------------------------------------- + */ + +static void +UpdateSizeHints(winPtr) + TkWindow *winPtr; +{ + register WmInfo *wmPtr = winPtr->wmInfoPtr; + XSizeHints *hintsPtr; + int maxWidth, maxHeight; + + wmPtr->flags &= ~WM_UPDATE_SIZE_HINTS; + + hintsPtr = XAllocSizeHints(); + if (hintsPtr == NULL) { + return; + } + + /* + * Compute the pixel-based sizes for the various fields in the + * size hints structure, based on the grid-based sizes in + * our structure. + */ + + GetMaxSize(wmPtr, &maxWidth, &maxHeight); + if (wmPtr->gridWin != NULL) { + hintsPtr->base_width = winPtr->reqWidth + - (wmPtr->reqGridWidth * wmPtr->widthInc); + if (hintsPtr->base_width < 0) { + hintsPtr->base_width = 0; + } + hintsPtr->base_height = winPtr->reqHeight + wmPtr->menuHeight + - (wmPtr->reqGridHeight * wmPtr->heightInc); + if (hintsPtr->base_height < 0) { + hintsPtr->base_height = 0; + } + hintsPtr->min_width = hintsPtr->base_width + + (wmPtr->minWidth * wmPtr->widthInc); + hintsPtr->min_height = hintsPtr->base_height + + (wmPtr->minHeight * wmPtr->heightInc); + hintsPtr->max_width = hintsPtr->base_width + + (maxWidth * wmPtr->widthInc); + hintsPtr->max_height = hintsPtr->base_height + + (maxHeight * wmPtr->heightInc); + } else { + hintsPtr->min_width = wmPtr->minWidth; + hintsPtr->min_height = wmPtr->minHeight; + hintsPtr->max_width = maxWidth; + hintsPtr->max_height = maxHeight; + hintsPtr->base_width = 0; + hintsPtr->base_height = 0; + } + hintsPtr->width_inc = wmPtr->widthInc; + hintsPtr->height_inc = wmPtr->heightInc; + hintsPtr->min_aspect.x = wmPtr->minAspect.x; + hintsPtr->min_aspect.y = wmPtr->minAspect.y; + hintsPtr->max_aspect.x = wmPtr->maxAspect.x; + hintsPtr->max_aspect.y = wmPtr->maxAspect.y; + hintsPtr->win_gravity = wmPtr->gravity; + hintsPtr->flags = wmPtr->sizeHintsFlags | PMinSize | PMaxSize; + + /* + * If the window isn't supposed to be resizable, then set the + * minimum and maximum dimensions to be the same. + */ + + if (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) { + if (wmPtr->width >= 0) { + hintsPtr->min_width = wmPtr->width; + } else { + hintsPtr->min_width = winPtr->reqWidth; + } + hintsPtr->max_width = hintsPtr->min_width; + } + if (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) { + if (wmPtr->height >= 0) { + hintsPtr->min_height = wmPtr->height; + } else { + hintsPtr->min_height = winPtr->reqHeight + wmPtr->menuHeight; + } + hintsPtr->max_height = hintsPtr->min_height; + } + + XSetWMNormalHints(winPtr->display, wmPtr->wrapperPtr->window, hintsPtr); + + XFree((char *) hintsPtr); +} + +/* + *---------------------------------------------------------------------- + * + * WaitForConfigureNotify -- + * + * This procedure is invoked in order to synchronize with the + * window manager. It waits for a ConfigureNotify event to + * arrive, signalling that the window manager has seen an attempt + * on our part to move or resize a top-level window. + * + * Results: + * None. + * + * Side effects: + * Delays the execution of the process until a ConfigureNotify event + * arrives with serial number at least as great as serial. This + * is useful for two reasons: + * + * 1. It's important to distinguish ConfigureNotify events that are + * coming in response to a request we've made from those generated + * spontaneously by the user. The reason for this is that if the + * user resizes the window we take that as an order to ignore + * geometry requests coming from inside the window hierarchy. If + * we accidentally interpret a response to our request as a + * user-initiated action, the window will stop responding to + * new geometry requests. To make this distinction, (a) this + * procedure sets a flag for TopLevelEventProc to indicate that + * we're waiting to sync with the wm, and (b) all changes to + * the size of a top-level window are followed by calls to this + * procedure. + * 2. Races and confusion can come about if there are multiple + * operations outstanding at a time (e.g. two different resizes + * of the top-level window: it's hard to tell which of the + * ConfigureNotify events coming back is for which request). + * While waiting, all events covered by StructureNotifyMask are + * processed and all others are deferred. + * + *---------------------------------------------------------------------- + */ + +static void +WaitForConfigureNotify(winPtr, serial) + TkWindow *winPtr; /* Top-level window for which we want + * to see a ConfigureNotify. */ + unsigned long serial; /* Serial number of resize request. Want to + * be sure wm has seen this. */ +{ + WmInfo *wmPtr = winPtr->wmInfoPtr; + XEvent event; + int diff, code; + int gotConfig = 0; + + /* + * One more tricky detail about this procedure. In some cases the + * window manager will decide to ignore a configure request (e.g. + * because it thinks the window is already in the right place). + * To avoid hanging in this situation, only wait for a few seconds, + * then give up. + */ + + while (!gotConfig) { + wmPtr->flags |= WM_SYNC_PENDING; + code = WaitForEvent(winPtr->display, wmPtr->wrapperPtr->window, + ConfigureNotify, &event); + wmPtr->flags &= ~WM_SYNC_PENDING; + if (code != TCL_OK) { + if (wmTracing) { + printf("WaitForConfigureNotify giving up on %s\n", + winPtr->pathName); + } + break; + } + diff = event.xconfigure.serial - serial; + if (diff >= 0) { + gotConfig = 1; + } + } + wmPtr->flags &= ~WM_MOVE_PENDING; + if (wmTracing) { + printf("WaitForConfigureNotify finished with %s, serial %ld\n", + winPtr->pathName, serial); + } +} + +/* + *---------------------------------------------------------------------- + * + * WaitForEvent -- + * + * This procedure is used by WaitForConfigureNotify and + * WaitForMapNotify to wait for an event of a certain type + * to arrive. + * + * Results: + * Under normal conditions, TCL_OK is returned and an event for + * display and window that matches "mask" is stored in *eventPtr. + * This event has already been processed by Tk before this procedure + * returns. If a long time goes by with no event of the right type + * arriving, or if an error occurs while waiting for the event to + * arrive, then TCL_ERROR is returned. + * + * Side effects: + * While waiting for the desired event to occur, Configurenotify + * events for window are processed, as are all ReparentNotify events, + * + *---------------------------------------------------------------------- + */ + +static int +WaitForEvent(display, window, type, eventPtr) + Display *display; /* Display event is coming from. */ + Window window; /* Window for which event is desired. */ + int type; /* Type of event that is wanted. */ + XEvent *eventPtr; /* Place to store event. */ +{ + WaitRestrictInfo info; + Tk_RestrictProc *oldRestrictProc; + ClientData oldRestrictData; + Tcl_Time timeout; + + /* + * Set up an event filter to select just the events we want, and + * a timer handler, then wait for events until we get the event + * we want or a timeout happens. + */ + + info.display = display; + info.window = window; + info.type = type; + info.eventPtr = eventPtr; + info.foundEvent = 0; + oldRestrictProc = Tk_RestrictEvents(WaitRestrictProc, (ClientData) &info, + &oldRestrictData); + + TclpGetTime(&timeout); + timeout.sec += 2; + + while (!info.foundEvent) { + if (!TkUnixDoOneXEvent(&timeout)) { + break; + } + } + (void) Tk_RestrictEvents(oldRestrictProc, oldRestrictData, + &oldRestrictData); + if (info.foundEvent) { + return TCL_OK; + } + return TCL_ERROR; +} + +/* + *---------------------------------------------------------------------- + * + * WaitRestrictProc -- + * + * This procedure is a Tk_RestrictProc that is used to filter + * events while WaitForEvent is active. + * + * Results: + * Returns TK_PROCESS_EVENT if the right event is found. Also + * returns TK_PROCESS_EVENT if any ReparentNotify event is found + * for window or if the event is a ConfigureNotify for window. + * Otherwise returns TK_DEFER_EVENT. + * + * Side effects: + * An event may get stored in the area indicated by the caller + * of WaitForEvent. + * + *---------------------------------------------------------------------- + */ + +static Tk_RestrictAction +WaitRestrictProc(clientData, eventPtr) + ClientData clientData; /* Pointer to WaitRestrictInfo structure. */ + XEvent *eventPtr; /* Event that is about to be handled. */ +{ + WaitRestrictInfo *infoPtr = (WaitRestrictInfo *) clientData; + + if (eventPtr->type == ReparentNotify) { + return TK_PROCESS_EVENT; + } + if ((eventPtr->xany.window != infoPtr->window) + || (eventPtr->xany.display != infoPtr->display)) { + return TK_DEFER_EVENT; + } + if (eventPtr->type == infoPtr->type) { + *infoPtr->eventPtr = *eventPtr; + infoPtr->foundEvent = 1; + return TK_PROCESS_EVENT; + } + if (eventPtr->type == ConfigureNotify) { + return TK_PROCESS_EVENT; + } + return TK_DEFER_EVENT; +} + +/* + *---------------------------------------------------------------------- + * + * WaitForMapNotify -- + * + * This procedure is invoked in order to synchronize with the + * window manager. It waits for the window's mapped state to + * reach the value given by mapped. + * + * Results: + * None. + * + * Side effects: + * Delays the execution of the process until winPtr becomes mapped + * or unmapped, depending on the "mapped" argument. This allows us + * to synchronize with the window manager, and allows us to + * identify changes in window size that come about when the window + * manager first starts managing the window (as opposed to those + * requested interactively by the user later). See the comments + * for WaitForConfigureNotify and WM_SYNC_PENDING. While waiting, + * all events covered by StructureNotifyMask are processed and all + * others are deferred. + * + *---------------------------------------------------------------------- + */ + +static void +WaitForMapNotify(winPtr, mapped) + TkWindow *winPtr; /* Top-level window for which we want + * to see a particular mapping state. */ + int mapped; /* If non-zero, wait for window to become + * mapped, otherwise wait for it to become + * unmapped. */ +{ + WmInfo *wmPtr = winPtr->wmInfoPtr; + XEvent event; + int code; + + while (1) { + if (mapped) { + if (winPtr->flags & TK_MAPPED) { + break; + } + } else if (!(winPtr->flags & TK_MAPPED)) { + break; + } + wmPtr->flags |= WM_SYNC_PENDING; + code = WaitForEvent(winPtr->display, wmPtr->wrapperPtr->window, + mapped ? MapNotify : UnmapNotify, &event); + wmPtr->flags &= ~WM_SYNC_PENDING; + if (code != TCL_OK) { + /* + * There are some bizarre situations in which the window + * manager can't respond or chooses not to (e.g. if we've + * got a grab set it can't respond). If this happens then + * just quit. + */ + + if (wmTracing) { + printf("WaitForMapNotify giving up on %s\n", winPtr->pathName); + } + break; + } + } + wmPtr->flags &= ~WM_MOVE_PENDING; + if (wmTracing) { + printf("WaitForMapNotify finished with %s\n", winPtr->pathName); + } +} + +/* + *-------------------------------------------------------------- + * + * UpdateHints -- + * + * This procedure is called to update the window manager's + * hints information from the information in a WmInfo + * structure. + * + * Results: + * None. + * + * Side effects: + * Properties get changed for winPtr. + * + *-------------------------------------------------------------- + */ + +static void +UpdateHints(winPtr) + TkWindow *winPtr; +{ + WmInfo *wmPtr = winPtr->wmInfoPtr; + + if (wmPtr->flags & WM_NEVER_MAPPED) { + return; + } + XSetWMHints(winPtr->display, wmPtr->wrapperPtr->window, &wmPtr->hints); +} + +/* + *-------------------------------------------------------------- + * + * ParseGeometry -- + * + * This procedure parses a geometry string and updates + * information used to control the geometry of a top-level + * window. + * + * Results: + * A standard Tcl return value, plus an error message in + * interp->result if an error occurs. + * + * Side effects: + * The size and/or location of winPtr may change. + * + *-------------------------------------------------------------- + */ + +static int +ParseGeometry(interp, string, winPtr) + Tcl_Interp *interp; /* Used for error reporting. */ + char *string; /* String containing new geometry. Has the + * standard form "=wxh+x+y". */ + TkWindow *winPtr; /* Pointer to top-level window whose + * geometry is to be changed. */ +{ + register WmInfo *wmPtr = winPtr->wmInfoPtr; + int x, y, width, height, flags; + char *end; + register char *p = string; + + /* + * The leading "=" is optional. + */ + + if (*p == '=') { + p++; + } + + /* + * Parse the width and height, if they are present. Don't + * actually update any of the fields of wmPtr until we've + * successfully parsed the entire geometry string. + */ + + width = wmPtr->width; + height = wmPtr->height; + x = wmPtr->x; + y = wmPtr->y; + flags = wmPtr->flags; + if (isdigit(UCHAR(*p))) { + width = strtoul(p, &end, 10); + p = end; + if (*p != 'x') { + goto error; + } + p++; + if (!isdigit(UCHAR(*p))) { + goto error; + } + height = strtoul(p, &end, 10); + p = end; + } + + /* + * Parse the X and Y coordinates, if they are present. + */ + + if (*p != '\0') { + flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y); + if (*p == '-') { + flags |= WM_NEGATIVE_X; + } else if (*p != '+') { + goto error; + } + p++; + if (!isdigit(UCHAR(*p)) && (*p != '-')) { + goto error; + } + x = strtol(p, &end, 10); + p = end; + if (*p == '-') { + flags |= WM_NEGATIVE_Y; + } else if (*p != '+') { + goto error; + } + p++; + if (!isdigit(UCHAR(*p)) && (*p != '-')) { + goto error; + } + y = strtol(p, &end, 10); + if (*end != '\0') { + goto error; + } + + /* + * Assume that the geometry information came from the user, + * unless an explicit source has been specified. Otherwise + * most window managers assume that the size hints were + * program-specified and they ignore them. + */ + + if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) { + wmPtr->sizeHintsFlags |= USPosition; + flags |= WM_UPDATE_SIZE_HINTS; + } + } + + /* + * Everything was parsed OK. Update the fields of *wmPtr and + * arrange for the appropriate information to be percolated out + * to the window manager at the next idle moment. + */ + + wmPtr->width = width; + wmPtr->height = height; + wmPtr->x = x; + wmPtr->y = y; + flags |= WM_MOVE_PENDING; + wmPtr->flags = flags; + + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } + return TCL_OK; + + error: + Tcl_AppendResult(interp, "bad geometry specifier \"", + string, "\"", (char *) NULL); + return TCL_ERROR; +} + +/* + *---------------------------------------------------------------------- + * + * Tk_GetRootCoords -- + * + * Given a token for a window, this procedure traces through the + * window's lineage to find the (virtual) root-window coordinates + * corresponding to point (0,0) in the window. + * + * Results: + * The locations pointed to by xPtr and yPtr are filled in with + * the root coordinates of the (0,0) point in tkwin. If a virtual + * root window is in effect for the window, then the coordinates + * in the virtual root are returned. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +void +Tk_GetRootCoords(tkwin, xPtr, yPtr) + Tk_Window tkwin; /* Token for window. */ + int *xPtr; /* Where to store x-displacement of (0,0). */ + int *yPtr; /* Where to store y-displacement of (0,0). */ +{ + int x, y; + register TkWindow *winPtr = (TkWindow *) tkwin; + + /* + * Search back through this window's parents all the way to a + * top-level window, combining the offsets of each window within + * its parent. + */ + + x = y = 0; + while (1) { + x += winPtr->changes.x + winPtr->changes.border_width; + y += winPtr->changes.y + winPtr->changes.border_width; + if ((winPtr->wmInfoPtr != NULL) + && (winPtr->wmInfoPtr->menubar == (Tk_Window) winPtr)) { + /* + * This window is a special menubar; switch over to its + * associated toplevel, compensate for their differences in + * y coordinates, then continue with the toplevel (in case + * it's embedded). + */ + + y -= winPtr->wmInfoPtr->menuHeight; + winPtr = winPtr->wmInfoPtr->winPtr; + continue; + } + if (winPtr->flags & TK_TOP_LEVEL) { + TkWindow *otherPtr; + + if (!(winPtr->flags & TK_EMBEDDED)) { + break; + } + otherPtr = TkpGetOtherWindow(winPtr); + if (otherPtr == NULL) { + /* + * The container window is not in the same application. + * Query the X server. + */ + + Window root, dummyChild; + int rootX, rootY; + + root = winPtr->wmInfoPtr->vRoot; + if (root == None) { + root = RootWindowOfScreen(Tk_Screen((Tk_Window)winPtr)); + } + XTranslateCoordinates(winPtr->display, winPtr->window, + root, 0, 0, &rootX, &rootY, &dummyChild); + x += rootX; + y += rootY; + break; + } else { + /* + * The container window is in the same application. + * Let's query its coordinates. + */ + + winPtr = otherPtr; + continue; + } + } + winPtr = winPtr->parentPtr; + if (winPtr == NULL) { + break; + } + } + *xPtr = x; + *yPtr = y; +} + +/* + *---------------------------------------------------------------------- + * + * Tk_CoordsToWindow -- + * + * Given the (virtual) root coordinates of a point, this procedure + * returns the token for the top-most window covering that point, + * if there exists such a window in this application. + * + * Results: + * The return result is either a token for the window corresponding + * to rootX and rootY, or else NULL to indicate that there is no such + * window. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +Tk_Window +Tk_CoordsToWindow(rootX, rootY, tkwin) + int rootX, rootY; /* Coordinates of point in root window. If + * a virtual-root window manager is in use, + * these coordinates refer to the virtual + * root, not the real root. */ + Tk_Window tkwin; /* Token for any window in application; + * used to identify the display. */ +{ + Window window, parent, child; + int x, y, childX, childY, tmpx, tmpy, bd; + WmInfo *wmPtr; + TkWindow *winPtr, *childPtr, *nextPtr; + + /* + * Step 1: scan the list of toplevel windows to see if there is a + * virtual root for the screen we're interested in. If so, we have + * to translate the coordinates from virtual root to root + * coordinates. + */ + + parent = window = RootWindowOfScreen(Tk_Screen(tkwin)); + x = rootX; + y = rootY; + for (wmPtr = firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) { + if (Tk_Screen(wmPtr->winPtr) != Tk_Screen(tkwin)) { + continue; + } + if (wmPtr->vRoot == None) { + continue; + } + UpdateVRootGeometry(wmPtr); + parent = wmPtr->vRoot; + break; + } + + /* + * Step 2: work down through the window hierarchy starting at the + * root. For each window, find the child that contains the given + * point and then see if this child is either a wrapper for one of + * our toplevel windows or a window manager decoration window for + * one of our toplevels. This approach handles several tricky + * cases: + * + * 1. There may be a virtual root window between the root and one of + * our toplevels. + * 2. If a toplevel is embedded, we may have to search through the + * windows of the container application(s) before getting to + * the toplevel. + */ + + while (1) { + if (XTranslateCoordinates(Tk_Display(tkwin), parent, window, + x, y, &childX, &childY, &child) == False) { + panic("Tk_CoordsToWindow got False return from XTranslateCoordinates"); + } + if (child == None) { + return NULL; + } + for (wmPtr = firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) { + if (wmPtr->reparent == child) { + goto gotToplevel; + } + if (wmPtr->wrapperPtr != NULL) { + if (child == wmPtr->wrapperPtr->window) { + goto gotToplevel; + } + } else if (child == wmPtr->winPtr->window) { + goto gotToplevel; + } + } + x = childX; + y = childY; + parent = window; + window = child; + } + + gotToplevel: + winPtr = wmPtr->winPtr; + if (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) { + return NULL; + } + + /* + * Step 3: at this point winPtr and wmPtr refer to the toplevel that + * contains the given coordinates, and childX and childY give the + * translated coordinates in the *parent* of the toplevel. Now + * decide whether the coordinates are in the menubar or the actual + * toplevel, and translate the coordinates into the coordinate + * system of that window. + */ + + x = childX - winPtr->changes.x; + y = childY - winPtr->changes.y; + if ((x < 0) || (x >= winPtr->changes.width) + || (y >= winPtr->changes.height)) { + return NULL; + } + if (y < 0) { + winPtr = (TkWindow *) wmPtr->menubar; + if (winPtr == NULL) { + return NULL; + } + y += wmPtr->menuHeight; + if (y < 0) { + return NULL; + } + } + + /* + * Step 4: work down through the hierarchy underneath the current + * window. At each level, scan through all the children to find the + * highest one in the stacking order that contains the point. Then + * repeat the whole process on that child. + */ + + while (1) { + nextPtr = NULL; + for (childPtr = winPtr->childList; childPtr != NULL; + childPtr = childPtr->nextPtr) { + if (!Tk_IsMapped(childPtr) || (childPtr->flags & TK_TOP_LEVEL)) { + continue; + } + if (childPtr->flags & TK_REPARENTED) { + continue; + } + tmpx = x - childPtr->changes.x; + tmpy = y - childPtr->changes.y; + bd = childPtr->changes.border_width; + if ((tmpx >= -bd) && (tmpy >= -bd) + && (tmpx < (childPtr->changes.width + bd)) + && (tmpy < (childPtr->changes.height + bd))) { + nextPtr = childPtr; + } + } + if (nextPtr == NULL) { + break; + } + winPtr = nextPtr; + x -= winPtr->changes.x; + y -= winPtr->changes.y; + if ((winPtr->flags & TK_CONTAINER) + && (winPtr->flags & TK_BOTH_HALVES)) { + /* + * The window containing the point is a container, and the + * embedded application is in this same process. Switch + * over to the toplevel for the embedded application and + * start processing that toplevel from scratch. + */ + + winPtr = TkpGetOtherWindow(winPtr); + wmPtr = winPtr->wmInfoPtr; + childX = x; + childY = y; + goto gotToplevel; + } + } + return (Tk_Window) winPtr; +} + +/* + *---------------------------------------------------------------------- + * + * UpdateVRootGeometry -- + * + * This procedure is called to update all the virtual root + * geometry information in wmPtr. + * + * Results: + * None. + * + * Side effects: + * The vRootX, vRootY, vRootWidth, and vRootHeight fields in + * wmPtr are filled with the most up-to-date information. + * + *---------------------------------------------------------------------- + */ + +static void +UpdateVRootGeometry(wmPtr) + WmInfo *wmPtr; /* Window manager information to be + * updated. The wmPtr->vRoot field must + * be valid. */ +{ + TkWindow *winPtr = wmPtr->winPtr; + int bd; + unsigned int dummy; + Window dummy2; + Status status; + Tk_ErrorHandler handler; + + /* + * If this isn't a virtual-root window manager, just return information + * about the screen. + */ + + wmPtr->flags &= ~WM_VROOT_OFFSET_STALE; + if (wmPtr->vRoot == None) { + noVRoot: + wmPtr->vRootX = wmPtr->vRootY = 0; + wmPtr->vRootWidth = DisplayWidth(winPtr->display, winPtr->screenNum); + wmPtr->vRootHeight = DisplayHeight(winPtr->display, winPtr->screenNum); + return; + } + + /* + * Refresh the virtual root information if it's out of date. + */ + + handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + status = XGetGeometry(winPtr->display, wmPtr->vRoot, + &dummy2, &wmPtr->vRootX, &wmPtr->vRootY, + (unsigned int *) &wmPtr->vRootWidth, + (unsigned int *) &wmPtr->vRootHeight, (unsigned int *) &bd, + &dummy); + if (wmTracing) { + printf("UpdateVRootGeometry: x = %d, y = %d, width = %d, ", + wmPtr->vRootX, wmPtr->vRootY, wmPtr->vRootWidth); + printf("height = %d, status = %d\n", wmPtr->vRootHeight, status); + } + Tk_DeleteErrorHandler(handler); + if (status == 0) { + /* + * The virtual root is gone! Pretend that it never existed. + */ + + wmPtr->vRoot = None; + goto noVRoot; + } +} + +/* + *---------------------------------------------------------------------- + * + * Tk_GetVRootGeometry -- + * + * This procedure returns information about the virtual root + * window corresponding to a particular Tk window. + * + * Results: + * The values at xPtr, yPtr, widthPtr, and heightPtr are set + * with the offset and dimensions of the root window corresponding + * to tkwin. If tkwin is being managed by a virtual root window + * manager these values correspond to the virtual root window being + * used for tkwin; otherwise the offsets will be 0 and the + * dimensions will be those of the screen. + * + * Side effects: + * Vroot window information is refreshed if it is out of date. + * + *---------------------------------------------------------------------- + */ + +void +Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr) + Tk_Window tkwin; /* Window whose virtual root is to be + * queried. */ + int *xPtr, *yPtr; /* Store x and y offsets of virtual root + * here. */ + int *widthPtr, *heightPtr; /* Store dimensions of virtual root here. */ +{ + WmInfo *wmPtr; + TkWindow *winPtr = (TkWindow *) tkwin; + + /* + * Find the top-level window for tkwin, and locate the window manager + * information for that window. + */ + + while (!(winPtr->flags & TK_TOP_LEVEL) && (winPtr->parentPtr != NULL)) { + winPtr = winPtr->parentPtr; + } + wmPtr = winPtr->wmInfoPtr; + + /* + * Make sure that the geometry information is up-to-date, then copy + * it out to the caller. + */ + + if (wmPtr->flags & WM_VROOT_OFFSET_STALE) { + UpdateVRootGeometry(wmPtr); + } + *xPtr = wmPtr->vRootX; + *yPtr = wmPtr->vRootY; + *widthPtr = wmPtr->vRootWidth; + *heightPtr = wmPtr->vRootHeight; +} + +/* + *---------------------------------------------------------------------- + * + * Tk_MoveToplevelWindow -- + * + * This procedure is called instead of Tk_MoveWindow to adjust + * the x-y location of a top-level window. It delays the actual + * move to a later time and keeps window-manager information + * up-to-date with the move + * + * Results: + * None. + * + * Side effects: + * The window is eventually moved so that its upper-left corner + * (actually, the upper-left corner of the window's decorative + * frame, if there is one) is at (x,y). + * + *---------------------------------------------------------------------- + */ + +void +Tk_MoveToplevelWindow(tkwin, x, y) + Tk_Window tkwin; /* Window to move. */ + int x, y; /* New location for window (within + * parent). */ +{ + TkWindow *winPtr = (TkWindow *) tkwin; + register WmInfo *wmPtr = winPtr->wmInfoPtr; + + if (!(winPtr->flags & TK_TOP_LEVEL)) { + panic("Tk_MoveToplevelWindow called with non-toplevel window"); + } + wmPtr->x = x; + wmPtr->y = y; + wmPtr->flags |= WM_MOVE_PENDING; + wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y); + if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) { + wmPtr->sizeHintsFlags |= USPosition; + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + } + + /* + * If the window has already been mapped, must bring its geometry + * up-to-date immediately, otherwise an event might arrive from the + * server that would overwrite wmPtr->x and wmPtr->y and lose the + * new position. + */ + + if (!(wmPtr->flags & WM_NEVER_MAPPED)) { + if (wmPtr->flags & WM_UPDATE_PENDING) { + Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr); + } + UpdateGeometryInfo((ClientData) winPtr); + } +} + +/* + *---------------------------------------------------------------------- + * + * UpdateWmProtocols -- + * + * This procedure transfers the most up-to-date information about + * window manager protocols from the WmInfo structure to the actual + * property on the top-level window. + * + * Results: + * None. + * + * Side effects: + * The WM_PROTOCOLS property gets changed for wmPtr's window. + * + *---------------------------------------------------------------------- + */ + +static void +UpdateWmProtocols(wmPtr) + register WmInfo *wmPtr; /* Information about top-level window. */ +{ + register ProtocolHandler *protPtr; + Atom deleteWindowAtom; + int count; + Atom *arrayPtr, *atomPtr; + + /* + * There are only two tricky parts here. First, there could be any + * number of atoms for the window, so count them and malloc an array + * to hold all of their atoms. Second, we *always* want to respond + * to the WM_DELETE_WINDOW protocol, even if no-one's officially asked. + */ + + for (protPtr = wmPtr->protPtr, count = 1; protPtr != NULL; + protPtr = protPtr->nextPtr, count++) { + /* Empty loop body; we're just counting the handlers. */ + } + arrayPtr = (Atom *) ckalloc((unsigned) (count * sizeof(Atom))); + deleteWindowAtom = Tk_InternAtom((Tk_Window) wmPtr->winPtr, + "WM_DELETE_WINDOW"); + arrayPtr[0] = deleteWindowAtom; + for (protPtr = wmPtr->protPtr, atomPtr = &arrayPtr[1]; + protPtr != NULL; protPtr = protPtr->nextPtr) { + if (protPtr->protocol != deleteWindowAtom) { + *atomPtr = protPtr->protocol; + atomPtr++; + } + } + XChangeProperty(wmPtr->winPtr->display, wmPtr->wrapperPtr->window, + Tk_InternAtom((Tk_Window) wmPtr->winPtr, "WM_PROTOCOLS"), + XA_ATOM, 32, PropModeReplace, (unsigned char *) arrayPtr, + atomPtr-arrayPtr); + ckfree((char *) arrayPtr); +} + +/* + *---------------------------------------------------------------------- + * + * TkWmProtocolEventProc -- + * + * This procedure is called by the Tk_HandleEvent whenever a + * ClientMessage event arrives whose type is "WM_PROTOCOLS". + * This procedure handles the message from the window manager + * in an appropriate fashion. + * + * Results: + * None. + * + * Side effects: + * Depends on what sort of handler, if any, was set up for the + * protocol. + * + *---------------------------------------------------------------------- + */ + +void +TkWmProtocolEventProc(winPtr, eventPtr) + TkWindow *winPtr; /* Window to which the event was sent. */ + XEvent *eventPtr; /* X event. */ +{ + WmInfo *wmPtr; + register ProtocolHandler *protPtr; + Atom protocol; + int result; + char *protocolName; + Tcl_Interp *interp; + + wmPtr = winPtr->wmInfoPtr; + if (wmPtr == NULL) { + return; + } + protocol = (Atom) eventPtr->xclient.data.l[0]; + + /* + * Note: it's very important to retrieve the protocol name now, + * before invoking the command, even though the name won't be used + * until after the command returns. This is because the command + * could delete winPtr, making it impossible for us to use it + * later in the call to Tk_GetAtomName. + */ + + protocolName = Tk_GetAtomName((Tk_Window) winPtr, protocol); + for (protPtr = wmPtr->protPtr; protPtr != NULL; + protPtr = protPtr->nextPtr) { + if (protocol == protPtr->protocol) { + Tcl_Preserve((ClientData) protPtr); + interp = protPtr->interp; + Tcl_Preserve((ClientData) interp); + result = Tcl_GlobalEval(interp, protPtr->command); + if (result != TCL_OK) { + Tcl_AddErrorInfo(interp, "\n (command for \""); + Tcl_AddErrorInfo(interp, protocolName); + Tcl_AddErrorInfo(interp, + "\" window manager protocol)"); + Tcl_BackgroundError(interp); + } + Tcl_Release((ClientData) interp); + Tcl_Release((ClientData) protPtr); + return; + } + } + + /* + * No handler was present for this protocol. If this is a + * WM_DELETE_WINDOW message then just destroy the window. + */ + + if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) { + Tk_DestroyWindow((Tk_Window) wmPtr->winPtr); + } +} + +/* + *---------------------------------------------------------------------- + * + * TkWmRestackToplevel -- + * + * This procedure restacks a top-level window. + * + * Results: + * None. + * + * Side effects: + * WinPtr gets restacked as specified by aboveBelow and otherPtr. + * This procedure doesn't return until the restack has taken + * effect and the ConfigureNotify event for it has been received. + * + *---------------------------------------------------------------------- + */ + +void +TkWmRestackToplevel(winPtr, aboveBelow, otherPtr) + TkWindow *winPtr; /* Window to restack. */ + int aboveBelow; /* Gives relative position for restacking; + * must be Above or Below. */ + TkWindow *otherPtr; /* Window relative to which to restack; + * if NULL, then winPtr gets restacked + * above or below *all* siblings. */ +{ + XWindowChanges changes; + XWindowAttributes atts; + unsigned int mask; + Window window, dummy1, dummy2, vRoot; + Window *children; + unsigned int numChildren; + int i; + int desiredIndex = 0; /* Initialized to stop gcc warnings. */ + int ourIndex = 0; /* Initialized to stop gcc warnings. */ + unsigned long serial; + XEvent event; + int diff; + Tk_ErrorHandler handler; + TkWindow *wrapperPtr; + + changes.stack_mode = aboveBelow; + changes.sibling = None; + mask = CWStackMode; + if (winPtr->window == None) { + Tk_MakeWindowExist((Tk_Window) winPtr); + } + if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) { + /* + * Can't set stacking order properly until the window is on the + * screen (mapping it may give it a reparent window), so make sure + * it's on the screen. + */ + + TkWmMapWindow(winPtr); + } + wrapperPtr = winPtr->wmInfoPtr->wrapperPtr; + window = (winPtr->wmInfoPtr->reparent != None) + ? winPtr->wmInfoPtr->reparent : wrapperPtr->window; + if (otherPtr != NULL) { + if (otherPtr->window == None) { + Tk_MakeWindowExist((Tk_Window) otherPtr); + } + if (otherPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) { + TkWmMapWindow(otherPtr); + } + changes.sibling = (otherPtr->wmInfoPtr->reparent != None) + ? otherPtr->wmInfoPtr->reparent + : otherPtr->wmInfoPtr->wrapperPtr->window; + mask = CWStackMode|CWSibling; + } + + /* + * Before actually reconfiguring the window, see if it's already + * in the right place. If so then don't reconfigure it. The + * reason for this extra work is that some window managers will + * ignore the reconfigure request if the window is already in + * the right place, causing a long delay in WaitForConfigureNotify + * while it times out. Special note: if the window is almost in + * the right place, and the only windows between it and the right + * place aren't mapped, then we don't reconfigure it either, for + * the same reason. + */ + + vRoot = winPtr->wmInfoPtr->vRoot; + if (vRoot == None) { + vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) winPtr)); + } + if (XQueryTree(winPtr->display, vRoot, &dummy1, &dummy2, + &children, &numChildren) != 0) { + /* + * Find where our window is in the stacking order, and + * compute the desired location in the stacking order. + */ + + for (i = 0; i < numChildren; i++) { + if (children[i] == window) { + ourIndex = i; + } + if (children[i] == changes.sibling) { + desiredIndex = i; + } + } + if (mask & CWSibling) { + if (aboveBelow == Above) { + if (desiredIndex < ourIndex) { + desiredIndex += 1; + } + } else { + if (desiredIndex > ourIndex) { + desiredIndex -= 1; + } + } + } else { + if (aboveBelow == Above) { + desiredIndex = numChildren-1; + } else { + desiredIndex = 0; + } + } + + /* + * See if there are any mapped windows between where we are + * and where we want to be. + */ + + handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + while (desiredIndex != ourIndex) { + if ((XGetWindowAttributes(winPtr->display, children[desiredIndex], + &atts) != 0) && (atts.map_state != IsUnmapped)) { + break; + } + if (desiredIndex < ourIndex) { + desiredIndex++; + } else { + desiredIndex--; + } + } + Tk_DeleteErrorHandler(handler); + XFree((char *) children); + if (ourIndex == desiredIndex) { + return; + } + } + + /* + * Reconfigure the window. This tricky because of two things: + * (a) Some window managers, like olvwm, insist that we raise + * or lower the toplevel window itself, as opposed to its + * decorative frame. Attempts to raise or lower the frame + * are ignored. + * (b) If the raise or lower is relative to a sibling, X will + * generate an error unless we work with the frames (the + * toplevels themselves aren't siblings). + * Fortunately, the procedure XReconfigureWMWindow is supposed + * to handle all of this stuff, so be careful to use it instead + * of XConfigureWindow. + */ + + serial = NextRequest(winPtr->display); + if (window != wrapperPtr->window) { + /* + * We're going to have to wait for events on a window that + * Tk doesn't own, so we have to tell X specially that we + * want to get events on that window. To make matters worse, + * it's possible that the window doesn't exist anymore (e.g. + * the toplevel could have been withdrawn) so ignore events + * occurring during the request. + */ + + handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + XSelectInput(winPtr->display, window, StructureNotifyMask); + Tk_DeleteErrorHandler(handler); + } + XReconfigureWMWindow(winPtr->display, wrapperPtr->window, + Tk_ScreenNumber((Tk_Window) winPtr), mask, &changes); + + /* + * Wait for the reconfiguration to complete. If we don't wait, then + * the window may not restack for a while and the application might + * observe it before it has restacked. Waiting for the reconfiguration + * is tricky if winPtr has been reparented, since the window getting + * the event isn't one that Tk owns. + */ + + if (window == wrapperPtr->window) { + WaitForConfigureNotify(winPtr, serial); + } else { + while (1) { + if (WaitForEvent(winPtr->display, window, ConfigureNotify, + &event) != TCL_OK) { + break; + } + diff = event.xconfigure.serial - serial; + if (diff >= 0) { + break; + } + } + + /* + * Ignore errors that occur when we are de-selecting events on + * window, since it's possible that the window doesn't exist + * anymore (see comment above previous call to XSelectInput). + */ + + handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1, + (Tk_ErrorProc *) NULL, (ClientData) NULL); + XSelectInput(winPtr->display, window, (long) 0); + Tk_DeleteErrorHandler(handler); + } +} + +/* + *---------------------------------------------------------------------- + * + * TkWmAddToColormapWindows -- + * + * This procedure is called to add a given window to the + * WM_COLORMAP_WINDOWS property for its top-level, if it + * isn't already there. It is invoked by the Tk code that + * creates a new colormap, in order to make sure that colormap + * information is propagated to the window manager by default. + * + * Results: + * None. + * + * Side effects: + * WinPtr's window gets added to the WM_COLORMAP_WINDOWS + * property of its nearest top-level ancestor, unless the + * colormaps have been set explicitly with the + * "wm colormapwindows" command. + * + *---------------------------------------------------------------------- + */ + +void +TkWmAddToColormapWindows(winPtr) + TkWindow *winPtr; /* Window with a non-default colormap. + * Should not be a top-level window. */ +{ + TkWindow *wrapperPtr; + TkWindow *topPtr; + Window *oldPtr, *newPtr; + int count, i; + + if (winPtr->window == None) { + return; + } + + for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) { + if (topPtr == NULL) { + /* + * Window is being deleted. Skip the whole operation. + */ + + return; + } + if (topPtr->flags & TK_TOP_LEVEL) { + break; + } + } + if (topPtr->wmInfoPtr->flags & WM_COLORMAPS_EXPLICIT) { + return; + } + if (topPtr->wmInfoPtr->wrapperPtr == NULL) { + CreateWrapper(topPtr->wmInfoPtr); + } + wrapperPtr = topPtr->wmInfoPtr->wrapperPtr; + + /* + * Fetch the old value of the property. + */ + + if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window, + &oldPtr, &count) == 0) { + oldPtr = NULL; + count = 0; + } + + /* + * Make sure that the window isn't already in the list. + */ + + for (i = 0; i < count; i++) { + if (oldPtr[i] == winPtr->window) { + return; + } + } + + /* + * Make a new bigger array and use it to reset the property. + * Automatically add the toplevel itself as the last element + * of the list. + */ + + newPtr = (Window *) ckalloc((unsigned) ((count+2)*sizeof(Window))); + for (i = 0; i < count; i++) { + newPtr[i] = oldPtr[i]; + } + if (count == 0) { + count++; + } + newPtr[count-1] = winPtr->window; + newPtr[count] = topPtr->window; + XSetWMColormapWindows(topPtr->display, wrapperPtr->window, newPtr, + count+1); + ckfree((char *) newPtr); + if (oldPtr != NULL) { + XFree((char *) oldPtr); + } +} + +/* + *---------------------------------------------------------------------- + * + * TkWmRemoveFromColormapWindows -- + * + * This procedure is called to remove a given window from the + * WM_COLORMAP_WINDOWS property for its top-level. It is invoked + * when windows are deleted. + * + * Results: + * None. + * + * Side effects: + * WinPtr's window gets removed from the WM_COLORMAP_WINDOWS + * property of its nearest top-level ancestor, unless the + * top-level itself is being deleted too. + * + *---------------------------------------------------------------------- + */ + +void +TkWmRemoveFromColormapWindows(winPtr) + TkWindow *winPtr; /* Window that may be present in + * WM_COLORMAP_WINDOWS property for its + * top-level. Should not be a top-level + * window. */ +{ + TkWindow *wrapperPtr; + TkWindow *topPtr; + Window *oldPtr; + int count, i, j; + + if (winPtr->window == None) { + return; + } + + for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) { + if (topPtr == NULL) { + /* + * Ancestors have been deleted, so skip the whole operation. + * Seems like this can't ever happen? + */ + + return; + } + if (topPtr->flags & TK_TOP_LEVEL) { + break; + } + } + if (topPtr->flags & TK_ALREADY_DEAD) { + /* + * Top-level is being deleted, so there's no need to cleanup + * the WM_COLORMAP_WINDOWS property. + */ + + return; + } + if (topPtr->wmInfoPtr->wrapperPtr == NULL) { + CreateWrapper(topPtr->wmInfoPtr); + } + wrapperPtr = topPtr->wmInfoPtr->wrapperPtr; + if (wrapperPtr == NULL) { + return; + } + + /* + * Fetch the old value of the property. + */ + + if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window, + &oldPtr, &count) == 0) { + return; + } + + /* + * Find the window and slide the following ones down to cover + * it up. + */ + + for (i = 0; i < count; i++) { + if (oldPtr[i] == winPtr->window) { + for (j = i ; j < count-1; j++) { + oldPtr[j] = oldPtr[j+1]; + } + XSetWMColormapWindows(topPtr->display, wrapperPtr->window, + oldPtr, count-1); + break; + } + } + XFree((char *) oldPtr); +} + +/* + *---------------------------------------------------------------------- + * + * TkGetPointerCoords -- + * + * Fetch the position of the mouse pointer. + * + * Results: + * *xPtr and *yPtr are filled in with the (virtual) root coordinates + * of the mouse pointer for tkwin's display. If the pointer isn't + * on tkwin's screen, then -1 values are returned for both + * coordinates. The argument tkwin must be a toplevel window. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +void +TkGetPointerCoords(tkwin, xPtr, yPtr) + Tk_Window tkwin; /* Toplevel window that identifies screen + * on which lookup is to be done. */ + int *xPtr, *yPtr; /* Store pointer coordinates here. */ +{ + TkWindow *winPtr = (TkWindow *) tkwin; + WmInfo *wmPtr; + Window w, root, child; + int rootX, rootY; + unsigned int mask; + + wmPtr = winPtr->wmInfoPtr; + + w = wmPtr->vRoot; + if (w == None) { + w = RootWindow(winPtr->display, winPtr->screenNum); + } + if (XQueryPointer(winPtr->display, w, &root, &child, &rootX, &rootY, + xPtr, yPtr, &mask) != True) { + *xPtr = -1; + *yPtr = -1; + } +} + +/* + *---------------------------------------------------------------------- + * + * GetMaxSize -- + * + * This procedure computes the current maxWidth and maxHeight + * values for a window, taking into account the possibility + * that they may be defaulted. + * + * Results: + * The values at *maxWidthPtr and *maxHeightPtr are filled + * in with the maximum allowable dimensions of wmPtr's window, + * in grid units. If no maximum has been specified for the + * window, then this procedure computes the largest sizes that + * will fit on the screen. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static void +GetMaxSize(wmPtr, maxWidthPtr, maxHeightPtr) + WmInfo *wmPtr; /* Window manager information for the + * window. */ + int *maxWidthPtr; /* Where to store the current maximum + * width of the window. */ + int *maxHeightPtr; /* Where to store the current maximum + * height of the window. */ +{ + int tmp; + + if (wmPtr->maxWidth > 0) { + *maxWidthPtr = wmPtr->maxWidth; + } else { + /* + * Must compute a default width. Fill up the display, leaving a + * bit of extra space for the window manager's borders. + */ + + tmp = DisplayWidth(wmPtr->winPtr->display, wmPtr->winPtr->screenNum) + - 15; + if (wmPtr->gridWin != NULL) { + /* + * Gridding is turned on; convert from pixels to grid units. + */ + + tmp = wmPtr->reqGridWidth + + (tmp - wmPtr->winPtr->reqWidth)/wmPtr->widthInc; + } + *maxWidthPtr = tmp; + } + if (wmPtr->maxHeight > 0) { + *maxHeightPtr = wmPtr->maxHeight; + } else { + tmp = DisplayHeight(wmPtr->winPtr->display, wmPtr->winPtr->screenNum) + - 30; + if (wmPtr->gridWin != NULL) { + tmp = wmPtr->reqGridHeight + + (tmp - wmPtr->winPtr->reqHeight)/wmPtr->heightInc; + } + *maxHeightPtr = tmp; + } +} + +/* + *---------------------------------------------------------------------- + * + * TkpMakeMenuWindow -- + * + * Configure the window to be either a pull-down (or pop-up) + * menu, or as a toplevel (torn-off) menu or palette. + * + * Results: + * None. + * + * Side effects: + * Changes the style bit used to create a new Mac toplevel. + * + *---------------------------------------------------------------------- + */ + +void +TkpMakeMenuWindow(tkwin, transient) + Tk_Window tkwin; /* New window. */ + int transient; /* 1 means menu is only posted briefly as + * a popup or pulldown or cascade. 0 means + * menu is always visible, e.g. as a torn-off + * menu. Determines whether save_under and + * override_redirect should be set. */ +{ + WmInfo *wmPtr; + XSetWindowAttributes atts; + TkWindow *wrapperPtr; + + if (!Tk_IsTopLevel(tkwin)) { + return; + } + wmPtr = ((TkWindow *) tkwin)->wmInfoPtr; + if (wmPtr->wrapperPtr == NULL) { + CreateWrapper(wmPtr); + } + wrapperPtr = wmPtr->wrapperPtr; + if (transient) { + atts.override_redirect = True; + atts.save_under = True; + } else { + atts.override_redirect = False; + atts.save_under = False; + } + + /* + * The override-redirect and save-under bits must be set on the + * wrapper window in order to have the desired effect. However, + * also set the override-redirect bit on the window itself, so + * that the "wm overrideredirect" command will see it. + */ + + if ((atts.override_redirect != Tk_Attributes(wrapperPtr)->override_redirect) + || (atts.save_under != Tk_Attributes(wrapperPtr)->save_under)) { + Tk_ChangeWindowAttributes((Tk_Window) wrapperPtr, + CWOverrideRedirect|CWSaveUnder, &atts); + } + if (atts.override_redirect != Tk_Attributes(tkwin)->override_redirect) { + Tk_ChangeWindowAttributes(tkwin, CWOverrideRedirect, &atts); + } +} + +/* + *---------------------------------------------------------------------- + * + * CreateWrapper -- + * + * This procedure is invoked to create the wrapper window for a + * toplevel window. It is called just before a toplevel is mapped + * for the first time. + * + * Results: + * None. + * + * Side effects: + * The wrapper is created and the toplevel is reparented inside it. + * + *---------------------------------------------------------------------- + */ + +static void +CreateWrapper(wmPtr) + WmInfo *wmPtr; /* Window manager information for the + * window. */ +{ + TkWindow *winPtr, *wrapperPtr; + Window parent; + Tcl_HashEntry *hPtr; + int new; + + winPtr = wmPtr->winPtr; + if (winPtr->window == None) { + Tk_MakeWindowExist((Tk_Window) winPtr); + } + + /* + * The code below is copied from CreateTopLevelWindow, + * Tk_MakeWindowExist, and TkpMakeWindow; The idea is to create an + * "official" Tk window (so that we can get events on it), but to + * hide the window outside the official Tk hierarchy so that it + * isn't visible to the application. See the comments for the other + * procedures if you have questions about this code. + */ + + wmPtr->wrapperPtr = wrapperPtr = TkAllocWindow(winPtr->dispPtr, + Tk_ScreenNumber((Tk_Window) winPtr), winPtr); + wrapperPtr->dirtyAtts |= CWBorderPixel; + + /* + * Tk doesn't normally select for StructureNotifyMask events because + * the events are synthesized internally. However, for wrapper + * windows we need to know when the window manager modifies the + * window configuration. We also need to select on focus change + * events; these are the only windows for which we care about focus + * changes. + */ + + wrapperPtr->flags |= TK_WRAPPER; + wrapperPtr->atts.event_mask |= StructureNotifyMask|FocusChangeMask; + wrapperPtr->atts.override_redirect = winPtr->atts.override_redirect; + if (winPtr->flags & TK_EMBEDDED) { + parent = TkUnixContainerId(winPtr); + } else { + parent = XRootWindow(wrapperPtr->display, wrapperPtr->screenNum); + } + wrapperPtr->window = XCreateWindow(wrapperPtr->display, + parent, wrapperPtr->changes.x, wrapperPtr->changes.y, + (unsigned) wrapperPtr->changes.width, + (unsigned) wrapperPtr->changes.height, + (unsigned) wrapperPtr->changes.border_width, wrapperPtr->depth, + InputOutput, wrapperPtr->visual, + wrapperPtr->dirtyAtts|CWOverrideRedirect, &wrapperPtr->atts); + hPtr = Tcl_CreateHashEntry(&wrapperPtr->dispPtr->winTable, + (char *) wrapperPtr->window, &new); + Tcl_SetHashValue(hPtr, wrapperPtr); + wrapperPtr->mainPtr = winPtr->mainPtr; + wrapperPtr->mainPtr->refCount++; + wrapperPtr->dirtyAtts = 0; + wrapperPtr->dirtyChanges = 0; +#ifdef TK_USE_INPUT_METHODS + wrapperPtr->inputContext = NULL; +#endif /* TK_USE_INPUT_METHODS */ + wrapperPtr->wmInfoPtr = wmPtr; + + /* + * Reparent the toplevel window inside the wrapper. + */ + + XReparentWindow(wrapperPtr->display, winPtr->window, wrapperPtr->window, + 0, 0); + + /* + * Tk must monitor structure events for wrapper windows in order + * to detect changes made by window managers such as resizing, + * mapping, unmapping, etc.. + */ + + Tk_CreateEventHandler((Tk_Window) wmPtr->wrapperPtr, StructureNotifyMask, + WrapperEventProc, (ClientData) wmPtr); +} + +/* + *---------------------------------------------------------------------- + * + * TkWmFocusToplevel -- + * + * This is a utility procedure invoked by focus-management code. + * The focus code responds to externally generated focus-related + * events on wrapper windows but ignores those events for any other + * windows. This procedure determines whether a given window is a + * wrapper window and, if so, returns the toplevel window + * corresponding to the wrapper. + * + * Results: + * If winPtr is a wrapper window, returns a pointer to the + * corresponding toplevel window; otherwise returns NULL. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +TkWindow * +TkWmFocusToplevel(winPtr) + TkWindow *winPtr; /* Window that received a focus-related + * event. */ +{ + if (!(winPtr->flags & TK_WRAPPER)) { + return NULL; + } + return winPtr->wmInfoPtr->winPtr; +} + +/* + *---------------------------------------------------------------------- + * + * TkUnixSetMenubar -- + * + * This procedure is invoked by menu management code to specify the + * window to use as a menubar for a given toplevel window. + * + * Results: + * None. + * + * Side effects: + * The window given by menubar will be mapped and positioned inside + * the wrapper for tkwin and above tkwin. Menubar will + * automatically be resized to maintain the height specified by + * TkUnixSetMenuHeight the same width as tkwin. Any previous + * menubar specified for tkwin will be unmapped and ignored from + * now on. + * + *---------------------------------------------------------------------- + */ + +void +TkUnixSetMenubar(tkwin, menubar) + Tk_Window tkwin; /* Token for toplevel window. */ + Tk_Window menubar; /* Token for window that is to serve as + * menubar for tkwin. Must not be a + * toplevel window. If NULL, any + * existing menubar is canceled and the + * menu height is reset to 0. */ +{ + WmInfo *wmPtr = ((TkWindow *) tkwin)->wmInfoPtr; + Tk_Window parent; + TkWindow *menubarPtr = (TkWindow *) menubar; + + if (wmPtr->menubar != NULL) { + /* + * There's already a menubar for this toplevel. If it isn't the + * same as the new menubar, unmap it so that it is out of the + * way, and reparent it back to its original parent. + */ + + if (wmPtr->menubar == menubar) { + return; + } + ((TkWindow *) wmPtr->menubar)->wmInfoPtr = NULL; + ((TkWindow *) wmPtr->menubar)->flags &= ~TK_REPARENTED; + Tk_UnmapWindow(wmPtr->menubar); + parent = Tk_Parent(wmPtr->menubar); + if (parent != NULL) { + Tk_MakeWindowExist(parent); + XReparentWindow(Tk_Display(wmPtr->menubar), + Tk_WindowId(wmPtr->menubar), Tk_WindowId(parent), 0, 0); + } + Tk_DeleteEventHandler(wmPtr->menubar, StructureNotifyMask, + MenubarDestroyProc, (ClientData) wmPtr->menubar); + Tk_ManageGeometry(wmPtr->menubar, NULL, (ClientData) NULL); + } + + wmPtr->menubar = menubar; + if (menubar == NULL) { + wmPtr->menuHeight = 0; + } else { + if ((menubarPtr->flags & TK_TOP_LEVEL) + || (Tk_Screen(menubar) != Tk_Screen(tkwin))) { + panic("TkUnixSetMenubar got bad menubar"); + } + wmPtr->menuHeight = Tk_ReqHeight(menubar); + if (wmPtr->menuHeight == 0) { + wmPtr->menuHeight = 1; + } + Tk_MakeWindowExist(tkwin); + Tk_MakeWindowExist(menubar); + if (wmPtr->wrapperPtr == NULL) { + CreateWrapper(wmPtr); + } + XReparentWindow(Tk_Display(menubar), Tk_WindowId(menubar), + wmPtr->wrapperPtr->window, 0, 0); + menubarPtr->wmInfoPtr = wmPtr; + Tk_MoveResizeWindow(menubar, 0, 0, Tk_Width(tkwin), wmPtr->menuHeight); + Tk_MapWindow(menubar); + Tk_CreateEventHandler(menubar, StructureNotifyMask, MenubarDestroyProc, + (ClientData) menubar); + Tk_ManageGeometry(menubar, &menubarMgrType, (ClientData) wmPtr); + menubarPtr->flags |= TK_REPARENTED; + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) tkwin); + wmPtr->flags |= WM_UPDATE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * MenubarDestroyProc -- + * + * This procedure is invoked by the event dispatcher whenever a + * menubar window is destroyed (it's also invoked for a few other + * kinds of events, but we ignore those). + * + * Results: + * None. + * + * Side effects: + * The association between the window and its toplevel is broken, + * so that the window is no longer considered to be a menubar. + * + *---------------------------------------------------------------------- + */ + +static void +MenubarDestroyProc(clientData, eventPtr) + ClientData clientData; /* TkWindow pointer for menubar. */ + XEvent *eventPtr; /* Describes what just happened. */ +{ + WmInfo *wmPtr; + + if (eventPtr->type != DestroyNotify) { + return; + } + wmPtr = ((TkWindow *) clientData)->wmInfoPtr; + wmPtr->menubar = NULL; + wmPtr->menuHeight = 0; + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * MenubarReqProc -- + * + * This procedure is invoked by the Tk geometry management code + * whenever a menubar calls Tk_GeometryRequest to request a new + * size. + * + * Results: + * None. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static void +MenubarReqProc(clientData, tkwin) + ClientData clientData; /* Pointer to the window manager + * information for tkwin's toplevel. */ + Tk_Window tkwin; /* Handle for menubar window. */ +{ + WmInfo *wmPtr = (WmInfo *) clientData; + + wmPtr->menuHeight = Tk_ReqHeight(tkwin); + if (wmPtr->menuHeight <= 0) { + wmPtr->menuHeight = 1; + } + wmPtr->flags |= WM_UPDATE_SIZE_HINTS; + if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) { + Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr); + wmPtr->flags |= WM_UPDATE_PENDING; + } +} + +/* + *---------------------------------------------------------------------- + * + * TkpGetWrapperWindow -- + * + * Given a toplevel window return the hidden wrapper window for + * the toplevel window if available. + * + * Results: + * The wrapper window. NULL is we were not passed a toplevel + * window or the wrapper has yet to be created. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +TkWindow * +TkpGetWrapperWindow(winPtr) + TkWindow *winPtr; /* A toplevel window pointer. */ +{ + register WmInfo *wmPtr = winPtr->wmInfoPtr; + + if ((winPtr == NULL) || (wmPtr == NULL)) { + return NULL; + } + + return wmPtr->wrapperPtr; +} |