diff options
Diffstat (limited to 'tktable/generic/tkTableWin.c')
| -rw-r--r-- | tktable/generic/tkTableWin.c | 955 |
1 files changed, 955 insertions, 0 deletions
diff --git a/tktable/generic/tkTableWin.c b/tktable/generic/tkTableWin.c new file mode 100644 index 0000000..2a59088 --- /dev/null +++ b/tktable/generic/tkTableWin.c @@ -0,0 +1,955 @@ +/* + * tkTableWin.c -- + * + * This module implements embedded windows for table widgets. + * Much of this code is adapted from tkGrid.c and tkTextWind.c. + * + * Copyright (c) 1998-2002 Jeffrey Hobbs + * + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + * RCS: @(#) $Id: tkTableWin.c,v 1.2 2016/01/12 18:59:57 joye Exp $ + */ + +#include "tkTable.h" + +static int StickyParseProc _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, Tk_Window tkwin, + CONST84 char *value, char *widgRec, int offset)); +static const char * StickyPrintProc _ANSI_ARGS_((ClientData clientData, + Tk_Window tkwin, char *widgRec, int offset, + Tcl_FreeProc **freeProcPtr)); + +static void EmbWinLostSlaveProc _ANSI_ARGS_((ClientData clientData, + Tk_Window tkwin)); +static void EmbWinRequestProc _ANSI_ARGS_((ClientData clientData, + Tk_Window tkwin)); + +static void EmbWinCleanup _ANSI_ARGS_((Table *tablePtr, + TableEmbWindow *ewPtr)); +static int EmbWinConfigure _ANSI_ARGS_((Table *tablePtr, + TableEmbWindow *ewPtr, + int objc, Tcl_Obj *CONST objv[])); +static void EmbWinStructureProc _ANSI_ARGS_((ClientData clientData, + XEvent *eventPtr)); +static void EmbWinUnmapNow _ANSI_ARGS_((Tk_Window ewTkwin, + Tk_Window tkwin)); + +static Tk_GeomMgr tableGeomType = { + "table", /* name */ + EmbWinRequestProc, /* requestProc */ + EmbWinLostSlaveProc, /* lostSlaveProc */ +}; + +/* windows subcommands */ +static CONST84 char *winCmdNames[] = { + "cget", "configure", "delete", "move", "names", (char *) NULL +}; +enum winCommand { + WIN_CGET, WIN_CONFIGURE, WIN_DELETE, WIN_MOVE, WIN_NAMES +}; + +/* Flag values for "sticky"ness The 16 combinations subsume the packer's + * notion of anchor and fill. + * + * STICK_NORTH This window sticks to the top of its cavity. + * STICK_EAST This window sticks to the right edge of its cavity. + * STICK_SOUTH This window sticks to the bottom of its cavity. + * STICK_WEST This window sticks to the left edge of its cavity. + */ + +#define STICK_NORTH (1<<0) +#define STICK_EAST (1<<1) +#define STICK_SOUTH (1<<2) +#define STICK_WEST (1<<3) + +/* + * The default specification for configuring embedded windows + * Done like this to make the command line parsing easy + */ + +static Tk_CustomOption stickyOption = { StickyParseProc, StickyPrintProc, + (ClientData) NULL }; +static Tk_CustomOption tagBdOpt = { TableOptionBdSet, TableOptionBdGet, + (ClientData) BD_TABLE_WIN }; + +static Tk_ConfigSpec winConfigSpecs[] = { + {TK_CONFIG_BORDER, "-background", "background", "Background", NULL, + Tk_Offset(TableEmbWindow, bg), + TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK }, + {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *)NULL, (char *)NULL, 0, 0}, + {TK_CONFIG_SYNONYM, "-bg", "background", (char *)NULL, (char *)NULL, 0, 0}, + {TK_CONFIG_CUSTOM, "-borderwidth", "borderWidth", "BorderWidth", "", + 0 /* no offset */, + TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK, &tagBdOpt }, + {TK_CONFIG_STRING, "-create", (char *)NULL, (char *)NULL, (char *)NULL, + Tk_Offset(TableEmbWindow, create), + TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK }, + {TK_CONFIG_PIXELS, "-padx", (char *)NULL, (char *)NULL, (char *)NULL, + Tk_Offset(TableEmbWindow, padX), TK_CONFIG_DONT_SET_DEFAULT }, + {TK_CONFIG_PIXELS, "-pady", (char *)NULL, (char *)NULL, (char *)NULL, + Tk_Offset(TableEmbWindow, padY), TK_CONFIG_DONT_SET_DEFAULT }, + {TK_CONFIG_CUSTOM, "-sticky", (char *)NULL, (char *)NULL, (char *)NULL, + Tk_Offset(TableEmbWindow, sticky), TK_CONFIG_DONT_SET_DEFAULT, + &stickyOption}, + {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", NULL, + Tk_Offset(TableEmbWindow, relief), 0 }, + {TK_CONFIG_WINDOW, "-window", (char *)NULL, (char *)NULL, (char *)NULL, + Tk_Offset(TableEmbWindow, tkwin), + TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK }, + {TK_CONFIG_END, (char *)NULL, (char *)NULL, (char *)NULL, + (char *)NULL, 0, 0 } +}; + +/* + *---------------------------------------------------------------------- + * + * StickyPrintProc -- + * Converts the internal boolean combination of "sticky" bits onto + * a TCL string element containing zero or more of n, s, e, or w. + * + * Results: + * A string is placed into the "result" pointer. + * + * Side effects: + * none. + * + *---------------------------------------------------------------------- + */ +static const char * +StickyPrintProc(clientData, tkwin, widgRec, offset, freeProcPtr) + ClientData clientData; /* Ignored. */ + Tk_Window tkwin; /* Window for text widget. */ + char *widgRec; /* Pointer to TkTextEmbWindow + * structure. */ + int offset; /* Ignored. */ + Tcl_FreeProc **freeProcPtr; /* Pointer to variable to fill in with + * information about how to reclaim + * storage for return string. */ +{ + int flags = ((TableEmbWindow *) widgRec)->sticky; + int count = 0; + char *result = (char *) ckalloc(5*sizeof(char)); + + if (flags&STICK_NORTH) result[count++] = 'n'; + if (flags&STICK_EAST) result[count++] = 'e'; + if (flags&STICK_SOUTH) result[count++] = 's'; + if (flags&STICK_WEST) result[count++] = 'w'; + + *freeProcPtr = TCL_DYNAMIC; + result[count] = '\0'; + return result; +} + +/* + *---------------------------------------------------------------------- + * + * StringParseProc -- + * Converts an ascii string representing a widgets stickyness + * into the boolean result. + * + * Results: + * The boolean combination of the "sticky" bits is retuned. If an + * error occurs, such as an invalid character, -1 is returned instead. + * + * Side effects: + * none + * + *---------------------------------------------------------------------- + */ +static int +StickyParseProc(clientData, interp, tkwin, value, widgRec, offset) + ClientData clientData; /* Not used.*/ + Tcl_Interp *interp; /* Used for reporting errors. */ + Tk_Window tkwin; /* Window for text widget. */ + CONST84 char *value; /* Value of option. */ + char *widgRec; /* Pointer to TkTextEmbWindow + * structure. */ + int offset; /* Offset into item (ignored). */ +{ + register TableEmbWindow *ewPtr = (TableEmbWindow *) widgRec; + int sticky = 0; + char c; + + while ((c = *value++) != '\0') { + switch (c) { + case 'n': case 'N': sticky |= STICK_NORTH; break; + case 'e': case 'E': sticky |= STICK_EAST; break; + case 's': case 'S': sticky |= STICK_SOUTH; break; + case 'w': case 'W': sticky |= STICK_WEST; break; + case ' ': case ',': case '\t': case '\r': case '\n': break; + default: + Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), + "bad sticky value \"", --value, + "\": must contain n, s, e or w", + (char *) NULL); + return TCL_ERROR; + } + } + ewPtr->sticky = sticky; + return TCL_OK; +} + +/* + * ckallocs space for a new embedded window structure and clears the structure + * returns the pointer to the new structure + */ +static TableEmbWindow * +TableNewEmbWindow(Table *tablePtr) +{ + TableEmbWindow *ewPtr = (TableEmbWindow *) ckalloc(sizeof(TableEmbWindow)); + memset((VOID *) ewPtr, 0, sizeof(TableEmbWindow)); + + /* + * Set the values that aren't 0/NULL by default + */ + ewPtr->tablePtr = tablePtr; + ewPtr->relief = -1; + ewPtr->padX = -1; + ewPtr->padY = -1; + + return ewPtr; +} + +/* + *---------------------------------------------------------------------- + * + * EmbWinCleanup -- + * Releases resources used by an embedded window before it is freed up. + * + * Results: + * Window will no longer be valid. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ +static void +EmbWinCleanup(Table *tablePtr, TableEmbWindow *ewPtr) +{ + Tk_FreeOptions(winConfigSpecs, (char *) ewPtr, tablePtr->display, 0); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinDisplay -- + * + * This procedure is invoked by TableDisplay for + * mapping windows into cells. + * + * Results: + * Displays or moves window on table screen. + * + * Side effects: + * None. + * + *-------------------------------------------------------------- + */ +void +EmbWinDisplay(Table *tablePtr, Drawable window, TableEmbWindow *ewPtr, + TableTag *tagPtr, int x, int y, int width, int height) +{ + Tk_Window tkwin = tablePtr->tkwin; + Tk_Window ewTkwin = ewPtr->tkwin; + int diffx=0; /* Cavity width - slave width. */ + int diffy=0; /* Cavity hight - slave height. */ + int sticky = ewPtr->sticky; + int padx, pady; + + if (ewPtr->bg) tagPtr->bg = ewPtr->bg; + if (ewPtr->relief != -1) tagPtr->relief = ewPtr->relief; + if (ewPtr->borders) { + tagPtr->borderStr = ewPtr->borderStr; + tagPtr->borders = ewPtr->borders; + tagPtr->bd[0] = ewPtr->bd[0]; + tagPtr->bd[1] = ewPtr->bd[1]; + tagPtr->bd[2] = ewPtr->bd[2]; + tagPtr->bd[3] = ewPtr->bd[3]; + } + + padx = (ewPtr->padX < 0) ? tablePtr->padX : ewPtr->padX; + pady = (ewPtr->padY < 0) ? tablePtr->padY : ewPtr->padY; + + x += padx; + width -= padx*2; + y += pady; + height -= pady*2; + + if (width > Tk_ReqWidth(ewPtr->tkwin)) { + diffx = width - Tk_ReqWidth(ewPtr->tkwin); + width = Tk_ReqWidth(ewPtr->tkwin); + } + if (height > Tk_ReqHeight(ewPtr->tkwin)) { + diffy = height - Tk_ReqHeight(ewPtr->tkwin); + height = Tk_ReqHeight(ewPtr->tkwin); + } + if (sticky&STICK_EAST && sticky&STICK_WEST) { + width += diffx; + } + if (sticky&STICK_NORTH && sticky&STICK_SOUTH) { + height += diffy; + } + if (!(sticky&STICK_WEST)) { + x += (sticky&STICK_EAST) ? diffx : diffx/2; + } + if (!(sticky&STICK_NORTH)) { + y += (sticky&STICK_SOUTH) ? diffy : diffy/2; + } + + /* + * If we fall below a specific minimum width/height requirement, + * we just unmap the window + */ + if (width < 2 || height < 2) { + if (ewPtr->displayed) { + EmbWinUnmapNow(ewTkwin, tkwin); + } + return; + } + + if (tkwin == Tk_Parent(ewTkwin)) { + if ((x != Tk_X(ewTkwin)) || (y != Tk_Y(ewTkwin)) + || (width != Tk_Width(ewTkwin)) + || (height != Tk_Height(ewTkwin))) { + Tk_MoveResizeWindow(ewTkwin, x, y, width, height); + } + Tk_MapWindow(ewTkwin); + } else { + Tk_MaintainGeometry(ewTkwin, tkwin, x, y, width, height); + } + ewPtr->displayed = 1; +} + +/* + *-------------------------------------------------------------- + * + * EmbWinUnmapNow -- + * Handles unmapping the window depending on parent. + * tkwin should be tablePtr->tkwin. + * ewTkwin should be ewPtr->tkwin. + * + * Results: + * Removes the window. + * + * Side effects: + * None. + * + *-------------------------------------------------------------- + */ +static void +EmbWinUnmapNow(Tk_Window ewTkwin, Tk_Window tkwin) +{ + if (tkwin != Tk_Parent(ewTkwin)) { + Tk_UnmaintainGeometry(ewTkwin, tkwin); + } + Tk_UnmapWindow(ewTkwin); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinUnmap -- + * This procedure is invoked by TableAdjustParams for + * unmapping windows managed moved offscreen. + * rlo, ... should be in real coords. + * + * Results: + * None. + * + * Side effects: + * Unmaps embedded windows. + * + *-------------------------------------------------------------- + */ +void +EmbWinUnmap(Table *tablePtr, int rlo, int rhi, int clo, int chi) +{ + register TableEmbWindow *ewPtr; + Tcl_HashEntry *entryPtr; + int row, col, trow, tcol; + char buf[INDEX_BUFSIZE]; + + /* + * Transform numbers from real to user user coords + */ + rlo += tablePtr->rowOffset; + rhi += tablePtr->rowOffset; + clo += tablePtr->colOffset; + chi += tablePtr->colOffset; + for (row = rlo; row <= rhi; row++) { + for (col = clo; col <= chi; col++) { + TableTrueCell(tablePtr, row, col, &trow, &tcol); + TableMakeArrayIndex(trow, tcol, buf); + entryPtr = Tcl_FindHashEntry(tablePtr->winTable, buf); + if (entryPtr != NULL) { + ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr); + if (ewPtr->displayed) { + ewPtr->displayed = 0; + if (ewPtr->tkwin != NULL && tablePtr->tkwin != NULL) { + EmbWinUnmapNow(ewPtr->tkwin, tablePtr->tkwin); + } + } + } + } + } +} + +/* + *-------------------------------------------------------------- + * + * EmbWinRequestProc -- + * This procedure is invoked by Tk_GeometryRequest for + * windows managed by the Table. + * + * Results: + * None. + * + * Side effects: + * Arranges for tkwin, and all its managed siblings, to + * be re-arranged at the next idle point. + * + *-------------------------------------------------------------- + */ +static void +EmbWinRequestProc(clientData, tkwin) + ClientData clientData; /* Table's information about + * window that got new preferred + * geometry. */ + Tk_Window tkwin; /* Other Tk-related information + * about the window. */ +{ + register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData; + + /* + * Resize depends on the sticky + */ + if (ewPtr->displayed && ewPtr->hPtr != NULL) { + Table *tablePtr = ewPtr->tablePtr; + int row, col, x, y, width, height; + + TableParseArrayIndex(&row, &col, + Tcl_GetHashKey(tablePtr->winTable, ewPtr->hPtr)); + if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset, + col-tablePtr->colOffset, &x, &y, &width, &height, + 0)) { + TableInvalidate(tablePtr, x, y, width, height, 0); + } + } +} + +static void +EmbWinRemove(TableEmbWindow *ewPtr) +{ + Table *tablePtr = ewPtr->tablePtr; + + if (ewPtr->tkwin != NULL) { + Tk_DeleteEventHandler(ewPtr->tkwin, StructureNotifyMask, + EmbWinStructureProc, (ClientData) ewPtr); + ewPtr->tkwin = NULL; + } + ewPtr->displayed = 0; + if (tablePtr->tkwin != NULL) { + int row, col, x, y, width, height; + + TableParseArrayIndex(&row, &col, + Tcl_GetHashKey(tablePtr->winTable, ewPtr->hPtr)); + /* this will cause windows removed from the table to actually + * cause the associated embdedded window hash data to be removed */ + Tcl_DeleteHashEntry(ewPtr->hPtr); + if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset, + col-tablePtr->colOffset, &x, &y, &width, &height, + 0)) + TableInvalidate(tablePtr, x, y, width, height, 1); + } + /* this will cause windows removed from the table to actually + * cause the associated embdedded window hash data to be removed */ + EmbWinCleanup(tablePtr, ewPtr); + ckfree((char *) ewPtr); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinLostSlaveProc -- + * This procedure is invoked by Tk whenever some other geometry + * claims control over a slave that used to be managed by us. + * + * Results: + * None. + * + * Side effects: + * Forgets all table-related information about the slave. + * + *-------------------------------------------------------------- + */ + +static void +EmbWinLostSlaveProc(clientData, tkwin) + ClientData clientData; /* Table structure for slave window that + * was stolen away. */ + Tk_Window tkwin; /* Tk's handle for the slave window. */ +{ + register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData; + +#if 0 + Tcl_CancelIdleCall(EmbWinDelayedUnmap, (ClientData) ewPtr); +#endif + EmbWinUnmapNow(tkwin, ewPtr->tablePtr->tkwin); + EmbWinRemove(ewPtr); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinStructureProc -- + * This procedure is invoked by the Tk event loop whenever + * StructureNotify events occur for a window that's embedded + * in a table widget. This procedure's only purpose is to + * clean up when windows are deleted. + * + * Results: + * None. + * + * Side effects: + * The window is disassociated from the window segment, and + * the portion of the table is redisplayed. + * + *-------------------------------------------------------------- + */ +static void +EmbWinStructureProc(clientData, eventPtr) + ClientData clientData; /* Pointer to record describing window item. */ + XEvent *eventPtr; /* Describes what just happened. */ +{ + register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData; + + if (eventPtr->type != DestroyNotify) { + return; + } + + EmbWinRemove(ewPtr); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinDelete -- + * This procedure is invoked by ... whenever + * an embedded window is being deleted. + * + * Results: + * None. + * + * Side effects: + * The embedded window is deleted, if it exists, and any resources + * associated with it are released. + * + *-------------------------------------------------------------- + */ +void +EmbWinDelete(register Table *tablePtr, TableEmbWindow *ewPtr) +{ + Tcl_HashEntry *entryPtr = ewPtr->hPtr; + + if (ewPtr->tkwin != NULL) { + Tk_Window tkwin = ewPtr->tkwin; + /* + * Delete the event handler for the window before destroying + * the window, so that EmbWinStructureProc doesn't get called + * (we'll already do everything that it would have done, and + * it will just get confused). + */ + + ewPtr->tkwin = NULL; + Tk_DeleteEventHandler(tkwin, StructureNotifyMask, + EmbWinStructureProc, (ClientData) ewPtr); + Tk_DestroyWindow(tkwin); + } + if (tablePtr->tkwin != NULL && entryPtr != NULL) { + int row, col, x, y, width, height; + TableParseArrayIndex(&row, &col, + Tcl_GetHashKey(tablePtr->winTable, entryPtr)); + Tcl_DeleteHashEntry(entryPtr); + + if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset, + col-tablePtr->colOffset, + &x, &y, &width, &height, 0)) + TableInvalidate(tablePtr, x, y, width, height, 0); + } +#if 0 + Tcl_CancelIdleCall(EmbWinDelayedUnmap, (ClientData) ewPtr); +#endif + EmbWinCleanup(tablePtr, ewPtr); + ckfree((char *) ewPtr); +} + +/* + *-------------------------------------------------------------- + * + * EmbWinConfigure -- + * This procedure is called to handle configuration options + * for an embedded window. + * + * Results: + * The return value is a standard Tcl result. If TCL_ERROR is + * returned, then the interp's result contains an error message.. + * + * Side effects: + * Configuration information for the embedded window changes, + * such as alignment, stretching, or name of the embedded + * window. + * + *-------------------------------------------------------------- + */ +static int +EmbWinConfigure(tablePtr, ewPtr, objc, objv) + Table *tablePtr; /* Information about table widget that + * contains embedded window. */ + TableEmbWindow *ewPtr; /* Embedded window to be configured. */ + int objc; /* Number of objs in objv. */ + Tcl_Obj *CONST objv[]; /* Obj type options. */ +{ + Tcl_Interp *interp = tablePtr->interp; + Tk_Window oldWindow; + int i, result; + CONST84 char **argv; + + oldWindow = ewPtr->tkwin; + + /* Stringify */ + argv = (CONST84 char **) ckalloc((objc + 1) * sizeof(char *)); + for (i = 0; i < objc; i++) + argv[i] = Tcl_GetString(objv[i]); + argv[i] = NULL; + result = Tk_ConfigureWidget(interp, tablePtr->tkwin, + winConfigSpecs, objc, argv, (char *) ewPtr, + TK_CONFIG_ARGV_ONLY); + ckfree((char *) argv); + if (result != TCL_OK) { + return TCL_ERROR; + } + + if (oldWindow != ewPtr->tkwin) { + ewPtr->displayed = 0; + if (oldWindow != NULL) { + Tk_DeleteEventHandler(oldWindow, StructureNotifyMask, + EmbWinStructureProc, (ClientData) ewPtr); + Tk_ManageGeometry(oldWindow, (Tk_GeomMgr *) NULL, + (ClientData) NULL); + EmbWinUnmapNow(oldWindow, tablePtr->tkwin); + } + if (ewPtr->tkwin != NULL) { + Tk_Window ancestor, parent; + + /* + * Make sure that the table is either the parent of the + * embedded window or a descendant of that parent. Also, + * don't allow a top-level window to be managed inside + * a table. + */ + + parent = Tk_Parent(ewPtr->tkwin); + for (ancestor = tablePtr->tkwin; ; + ancestor = Tk_Parent(ancestor)) { + if (ancestor == parent) { + break; + } + if (Tk_IsTopLevel(ancestor)) { + badMaster: + Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), + "can't embed ", + Tk_PathName(ewPtr->tkwin), " in ", + Tk_PathName(tablePtr->tkwin), + (char *)NULL); + ewPtr->tkwin = NULL; + return TCL_ERROR; + } + } + if (Tk_IsTopLevel(ewPtr->tkwin) || + (ewPtr->tkwin == tablePtr->tkwin)) { + goto badMaster; + } + + /* + * Take over geometry management for the window, plus create + * an event handler to find out when it is deleted. + */ + + Tk_ManageGeometry(ewPtr->tkwin, &tableGeomType, (ClientData)ewPtr); + Tk_CreateEventHandler(ewPtr->tkwin, StructureNotifyMask, + EmbWinStructureProc, (ClientData) ewPtr); + } + } + return TCL_OK; +} + +/* + *-------------------------------------------------------------- + * + * Table_WinMove -- + * This procedure is invoked by ... whenever + * an embedded window is being moved. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * If an embedded window is in the dest cell, it is deleted. + * + *-------------------------------------------------------------- + */ +int +Table_WinMove(register Table *tablePtr, char *CONST srcPtr, + char *CONST destPtr, int flags) +{ + int srow, scol, row, col, new; + Tcl_HashEntry *entryPtr; + TableEmbWindow *ewPtr; + + if (TableGetIndex(tablePtr, srcPtr, &srow, &scol) != TCL_OK || + TableGetIndex(tablePtr, destPtr, &row, &col) != TCL_OK) { + return TCL_ERROR; + } + entryPtr = Tcl_FindHashEntry(tablePtr->winTable, srcPtr); + if (entryPtr == NULL) { + if (flags & INV_NO_ERR_MSG) { + return TCL_OK; + } else { + Tcl_AppendStringsToObj(Tcl_GetObjResult(tablePtr->interp), + "no window at index \"", srcPtr, "\"", (char *) NULL); + return TCL_ERROR; + } + } + /* avoid moving it to the same location */ + if (srow == row && scol == col) { + return TCL_OK; + } + /* get the window pointer */ + ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr); + /* and free the old hash table entry */ + Tcl_DeleteHashEntry(entryPtr); + + entryPtr = Tcl_CreateHashEntry(tablePtr->winTable, destPtr, &new); + if (!new) { + /* window already there - just delete it */ + TableEmbWindow *ewPtrDel; + ewPtrDel = (TableEmbWindow *) Tcl_GetHashValue(entryPtr); + /* This prevents the deletion of it's own entry, since we need it */ + ewPtrDel->hPtr = NULL; + EmbWinDelete(tablePtr, ewPtrDel); + } + /* set the new entry's value */ + Tcl_SetHashValue(entryPtr, (ClientData) ewPtr); + ewPtr->hPtr = entryPtr; + + if (flags & INV_FORCE) { + int x, y, w, h; + /* Invalidate old cell */ + if (TableCellVCoords(tablePtr, srow-tablePtr->rowOffset, + scol-tablePtr->colOffset, &x, &y, &w, &h, 0)) { + TableInvalidate(tablePtr, x, y, w, h, 0); + } + /* Invalidate new cell */ + if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset, + col-tablePtr->colOffset, &x, &y, &w, &h, 0)) { + TableInvalidate(tablePtr, x, y, w, h, 0); + } + } + return TCL_OK; +} + +/* + *-------------------------------------------------------------- + * + * Table_WinDelete -- + * This procedure is invoked by ... whenever + * an embedded window is being delete. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Window info will be deleted. + * + *-------------------------------------------------------------- + */ +int +Table_WinDelete(register Table *tablePtr, char *CONST idxPtr) +{ + Tcl_HashEntry *entryPtr; + + entryPtr = Tcl_FindHashEntry(tablePtr->winTable, idxPtr); + if (entryPtr != NULL) { + /* get the window pointer & clean up data associated with it */ + EmbWinDelete(tablePtr, (TableEmbWindow *) Tcl_GetHashValue(entryPtr)); + } + return TCL_OK; +} + +/* + *-------------------------------------------------------------- + * + * Table_WindowCmd -- + * This procedure is invoked to process the window method + * that corresponds to a widget managed by this module. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * See the user documentation. + * + *-------------------------------------------------------------- + */ +int +Table_WindowCmd(ClientData clientData, register Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[]) +{ + register Table *tablePtr = (Table *)clientData; + int result = TCL_OK, cmdIndex, row, col, x, y, width, height, i, new; + TableEmbWindow *ewPtr; + Tcl_HashEntry *entryPtr; + Tcl_HashSearch search; + char buf[INDEX_BUFSIZE], *keybuf, *winname; + + if (objc < 3) { + Tcl_WrongNumArgs(interp, 2, objv, "option ?arg arg ...?"); + return TCL_ERROR; + } + + /* parse the next argument */ + if (Tcl_GetIndexFromObj(interp, objv[2], winCmdNames, + "option", 0, &cmdIndex) != TCL_OK) { + return TCL_ERROR; + } + switch ((enum winCommand) cmdIndex) { + case WIN_CGET: + if (objc != 5) { + Tcl_WrongNumArgs(interp, 3, objv, "index option"); + return TCL_ERROR; + } + entryPtr = Tcl_FindHashEntry(tablePtr->winTable, + Tcl_GetString(objv[3])); + if (entryPtr == NULL) { + Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), + "no window at index \"", + Tcl_GetString(objv[3]), "\"", (char *)NULL); + return TCL_ERROR; + } else { + ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr); + result = Tk_ConfigureValue(interp, tablePtr->tkwin, winConfigSpecs, + (char *) ewPtr, + Tcl_GetString(objv[4]), 0); + } + return result; /* CGET */ + + case WIN_CONFIGURE: + if (objc < 4) { + Tcl_WrongNumArgs(interp, 3, objv, "index ?arg arg ...?"); + return TCL_ERROR; + } + if (TableGetIndexObj(tablePtr, objv[3], &row, &col) == TCL_ERROR) { + return TCL_ERROR; + } + TableMakeArrayIndex(row, col, buf); + entryPtr = Tcl_CreateHashEntry(tablePtr->winTable, buf, &new); + + if (new) { + /* create the structure */ + ewPtr = TableNewEmbWindow(tablePtr); + + /* insert it into the table */ + Tcl_SetHashValue(entryPtr, (ClientData) ewPtr); + ewPtr->hPtr = entryPtr; + + /* configure the window structure */ + result = EmbWinConfigure(tablePtr, ewPtr, objc-4, objv+4); + if (result == TCL_ERROR) { + /* release the structure */ + EmbWinCleanup(tablePtr, ewPtr); + ckfree((char *) ewPtr); + + /* and free the hash table entry */ + Tcl_DeleteHashEntry(entryPtr); + } + } else { + /* window exists, do a reconfig if we have enough args */ + /* get the window pointer from the table */ + ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr); + + /* 5 args means that there are values to replace */ + if (objc > 5) { + /* and do a reconfigure */ + result = EmbWinConfigure(tablePtr, ewPtr, objc-4, objv+4); + } + } + if (result == TCL_ERROR) { + return TCL_ERROR; + } + + /* + * If there were less than 6 args, we need + * to do a printout of the config, even for new windows + */ + if (objc < 6) { + result = Tk_ConfigureInfo(interp, tablePtr->tkwin, winConfigSpecs, + (char *) ewPtr, (objc == 5)? + Tcl_GetString(objv[4]) : NULL, 0); + } else { + /* Otherwise we reconfigured so invalidate + * the table for a redraw */ + if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset, + col-tablePtr->colOffset, + &x, &y, &width, &height, 0)) { + TableInvalidate(tablePtr, x, y, width, height, 1); + } + } + return result; /* CONFIGURE */ + + case WIN_DELETE: + if (objc < 4) { + Tcl_WrongNumArgs(interp, 3, objv, "index ?index ...?"); + return TCL_ERROR; + } + for (i = 3; i < objc; i++) { + Table_WinDelete(tablePtr, Tcl_GetString(objv[i])); + } + break; + + case WIN_MOVE: + if (objc != 5) { + Tcl_WrongNumArgs(interp, 3, objv, "srcIndex destIndex"); + return TCL_ERROR; + } + result = Table_WinMove(tablePtr, Tcl_GetString(objv[3]), + Tcl_GetString(objv[4]), INV_FORCE); + break; + + case WIN_NAMES: { + Tcl_Obj *objPtr = Tcl_NewObj(); + + /* just print out the window names */ + if (objc < 3 || objc > 4) { + Tcl_WrongNumArgs(interp, 3, objv, "?pattern?"); + return TCL_ERROR; + } + winname = (objc == 4) ? Tcl_GetString(objv[3]) : NULL; + entryPtr = Tcl_FirstHashEntry(tablePtr->winTable, &search); + while (entryPtr != NULL) { + keybuf = Tcl_GetHashKey(tablePtr->winTable, entryPtr); + if (objc == 3 || Tcl_StringMatch(keybuf, winname)) { + Tcl_ListObjAppendElement(NULL, objPtr, + Tcl_NewStringObj(keybuf, -1)); + } + entryPtr = Tcl_NextHashEntry(&search); + } + Tcl_SetObjResult(interp, TableCellSortObj(interp, objPtr)); + break; + } + } + return TCL_OK; +} |