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diff --git a/unix/tkUnixWm.c b/unix/tkUnixWm.c
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+/*
+ * 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;
+}