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- /*
- * tkFrame.c --
- *
- * This module implements "frame" and "toplevel" widgets for
- * the Tk toolkit. Frames are windows with a background color
- * and possibly a 3-D effect, but not much else in the way of
- * attributes.
- *
- * Copyright (c) 1990-1994 The Regents of the University of California.
- * Copyright (c) 1994-1995 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: @(#) tkFrame.c 1.68 96/02/15 18:53:30
- */
-
- #include "default.h"
- #include "tkPort.h"
- #include "tkInt.h"
-
- /*
- * A data structure of the following type is kept for each
- * frame that currently exists for this process:
- */
-
- typedef struct {
- Tk_Window tkwin; /* Window that embodies the frame. NULL
- * means that the window has been destroyed
- * but the data structures haven't yet been
- * cleaned up. */
- Display *display; /* Display containing widget. Used, among
- * other things, so that resources can be
- * freed even after tkwin has gone away. */
- Tcl_Interp *interp; /* Interpreter associated with widget. Used
- * to delete widget command. */
- Tcl_Command widgetCmd; /* Token for frame's widget command. */
- char *className; /* Class name for widget (from configuration
- * option). Malloc-ed. */
- int mask; /* Either FRAME or TOPLEVEL; used to select
- * which configuration options are valid for
- * widget. */
- char *screenName; /* Screen on which widget is created. Non-null
- * only for top-levels. Malloc-ed, may be
- * NULL. */
- char *visualName; /* Textual description of visual for window,
- * from -visual option. Malloc-ed, may be
- * NULL. */
- char *colormapName; /* Textual description of colormap for window,
- * from -colormap option. Malloc-ed, may be
- * NULL. */
- Colormap colormap; /* If not None, identifies a colormap
- * allocated for this window, which must be
- * freed when the window is deleted. */
- Tk_3DBorder border; /* Structure used to draw 3-D border and
- * background. NULL means no background
- * or border. */
- int borderWidth; /* Width of 3-D border (if any). */
- int relief; /* 3-d effect: TK_RELIEF_RAISED etc. */
- int highlightWidth; /* Width in pixels of highlight to draw
- * around widget when it has the focus.
- * 0 means don't draw a highlight. */
- XColor *highlightBgColorPtr;
- /* Color for drawing traversal highlight
- * area when highlight is off. */
- XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
- int width; /* Width to request for window. <= 0 means
- * don't request any size. */
- int height; /* Height to request for window. <= 0 means
- * don't request any size. */
- Tk_Cursor cursor; /* Current cursor for window, or None. */
- char *takeFocus; /* Value of -takefocus option; not used in
- * the C code, but used by keyboard traversal
- * scripts. Malloc'ed, but may be NULL. */
- int flags; /* Various flags; see below for
- * definitions. */
- } Frame;
-
- /*
- * Flag bits for frames:
- *
- * REDRAW_PENDING: Non-zero means a DoWhenIdle handler
- * has already been queued to redraw
- * this window.
- * GOT_FOCUS: Non-zero means this widget currently
- * has the input focus.
- */
-
- #define REDRAW_PENDING 1
- #define GOT_FOCUS 4
-
- /*
- * The following flag bits are used so that there can be separate
- * defaults for some configuration options for frames and toplevels.
- */
-
- #define FRAME TK_CONFIG_USER_BIT
- #define TOPLEVEL (TK_CONFIG_USER_BIT << 1)
- #define BOTH (FRAME | TOPLEVEL)
-
- static Tk_ConfigSpec configSpecs[] = {
- {TK_CONFIG_BORDER, "-background", "background", "Background",
- DEF_FRAME_BG_COLOR, Tk_Offset(Frame, border),
- BOTH|TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
- {TK_CONFIG_BORDER, "-background", "background", "Background",
- DEF_FRAME_BG_MONO, Tk_Offset(Frame, border),
- BOTH|TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
- {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
- (char *) NULL, 0, BOTH},
- {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
- (char *) NULL, 0, BOTH},
- {TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
- DEF_FRAME_BORDER_WIDTH, Tk_Offset(Frame, borderWidth), BOTH},
- {TK_CONFIG_STRING, "-class", "class", "Class",
- DEF_FRAME_CLASS, Tk_Offset(Frame, className), FRAME},
- {TK_CONFIG_STRING, "-class", "class", "Class",
- DEF_TOPLEVEL_CLASS, Tk_Offset(Frame, className), TOPLEVEL},
- {TK_CONFIG_STRING, "-colormap", "colormap", "Colormap",
- DEF_FRAME_COLORMAP, Tk_Offset(Frame, colormapName),
- BOTH|TK_CONFIG_NULL_OK},
- {TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
- DEF_FRAME_CURSOR, Tk_Offset(Frame, cursor), BOTH|TK_CONFIG_NULL_OK},
- {TK_CONFIG_PIXELS, "-height", "height", "Height",
- DEF_FRAME_HEIGHT, Tk_Offset(Frame, height), BOTH},
- {TK_CONFIG_COLOR, "-highlightbackground", "highlightBackground",
- "HighlightBackground", DEF_FRAME_HIGHLIGHT_BG,
- Tk_Offset(Frame, highlightBgColorPtr), BOTH},
- {TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
- DEF_FRAME_HIGHLIGHT, Tk_Offset(Frame, highlightColorPtr), BOTH},
- {TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
- "HighlightThickness",
- DEF_FRAME_HIGHLIGHT_WIDTH, Tk_Offset(Frame, highlightWidth), BOTH},
- {TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
- DEF_FRAME_RELIEF, Tk_Offset(Frame, relief), BOTH},
- {TK_CONFIG_STRING, "-screen", "screen", "Screen",
- DEF_TOPLEVEL_SCREEN, Tk_Offset(Frame, screenName),
- TOPLEVEL|TK_CONFIG_NULL_OK},
- #ifdef STk_CODE
- {TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus",
- #else
- {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
- #endif
- DEF_FRAME_TAKE_FOCUS, Tk_Offset(Frame, takeFocus),
- BOTH|TK_CONFIG_NULL_OK},
- {TK_CONFIG_STRING, "-visual", "visual", "Visual",
- DEF_FRAME_VISUAL, Tk_Offset(Frame, visualName),
- BOTH|TK_CONFIG_NULL_OK},
- {TK_CONFIG_PIXELS, "-width", "width", "Width",
- DEF_FRAME_WIDTH, Tk_Offset(Frame, width), BOTH},
- {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
- (char *) NULL, 0, 0}
- };
-
- /*
- * Forward declarations for procedures defined later in this file:
- */
-
- static int ConfigureFrame _ANSI_ARGS_((Tcl_Interp *interp,
- Frame *framePtr, int argc, char **argv,
- int flags));
- static void DestroyFrame _ANSI_ARGS_((char *memPtr));
- static void DisplayFrame _ANSI_ARGS_((ClientData clientData));
- static void FrameCmdDeletedProc _ANSI_ARGS_((
- ClientData clientData));
- static void FrameEventProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
- static int FrameWidgetCmd _ANSI_ARGS_((ClientData clientData,
- Tcl_Interp *interp, int argc, char **argv));
- static void MapFrame _ANSI_ARGS_((ClientData clientData));
-
- /*
- *--------------------------------------------------------------
- *
- * Tk_FrameCmd, Tk_ToplevelCmd --
- *
- * These procedures are invoked to process the "frame" and
- * "toplevel" Tcl commands. See the user documentation for
- * details on what they do.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation. These procedures are just wrappers;
- * they call ButtonCreate to do all of the real work.
- *
- *--------------------------------------------------------------
- */
-
- int
- Tk_FrameCmd(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. */
- {
- return TkCreateFrame(clientData, interp, argc, argv, 0, (char *) NULL);
- }
-
- int
- Tk_ToplevelCmd(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. */
- {
- return TkCreateFrame(clientData, interp, argc, argv, 1, (char *) NULL);
- }
-
- /*
- *--------------------------------------------------------------
- *
- * TkFrameCreate --
- *
- * This procedure is invoked to process the "frame" and "toplevel"
- * Tcl commands; it is also invoked directly by Tk_Init to create
- * a new main window. See the user documentation for the "frame"
- * and "toplevel" commands for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
- int
- TkCreateFrame(clientData, interp, argc, argv, toplevel, appName)
- ClientData clientData; /* Main window associated with interpreter.
- * If we're called by Tk_Init to create a
- * new application, then this is NULL. */
- Tcl_Interp *interp; /* Current interpreter. */
- int argc; /* Number of arguments. */
- char **argv; /* Argument strings. */
- int toplevel; /* Non-zero means create a toplevel window,
- * zero means create a frame. */
- char *appName; /* Should only be non-NULL if clientData is
- * NULL: gives the base name to use for the
- * new application. */
- {
- Tk_Window tkwin = (Tk_Window) clientData;
- Frame *framePtr;
- Tk_Window new = NULL;
- char *className, *screenName, *visualName, *colormapName, *arg;
- int i, c, length, depth;
- Colormap colormap;
- Visual *visual;
-
- if (argc < 2) {
- Tcl_AppendResult(interp, "wrong # args: should be \"",
- argv[0], " pathName ?options?\"", (char *) NULL);
- return TCL_ERROR;
- }
-
- /*
- * Pre-process the argument list. Scan through it to find any
- * "-class", "-screen", "-visual", and "-colormap" options. These
- * arguments need to be processed specially, before the window
- * is configured using the usual Tk mechanisms.
- */
-
- className = colormapName = screenName = visualName = NULL;
- colormap = None;
- for (i = 2; i < argc; i += 2) {
- arg = argv[i];
- length = strlen(arg);
- if (length < 2) {
- continue;
- }
- c = arg[1];
- if ((c == 'c') && (strncmp(arg, "-class", strlen(arg)) == 0)
- && (length >= 3)) {
- className = argv[i+1];
- } else if ((c == 'c')
- && (strncmp(arg, "-colormap", strlen(arg)) == 0)) {
- colormapName = argv[i+1];
- } else if ((c == 's') && toplevel
- && (strncmp(arg, "-screen", strlen(arg)) == 0)) {
- screenName = argv[i+1];
- } else if ((c == 'v')
- && (strncmp(arg, "-visual", strlen(arg)) == 0)) {
- visualName = argv[i+1];
- }
- }
-
- /*
- * Create the window, and deal with the special options -classname,
- * -colormap, -screenname, and -visual. The order here is tricky,
- * because we want to allow values for these options to come from
- * the database, yet we can't do that until the window is created.
- */
-
- if (screenName == NULL) {
- screenName = (toplevel) ? "" : NULL;
- }
- if (tkwin != NULL) {
- new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], screenName);
- } else {
- /*
- * We were called from Tk_Init; create a new application.
- */
-
- if (appName == NULL) {
- panic("TkCreateFrame didn't get application name");
- }
- new = TkCreateMainWindow(interp, screenName, appName);
- }
- if (new == NULL) {
- goto error;
- }
- if (className == NULL) {
- className = Tk_GetOption(new, "class", "Class");
- if (className == NULL) {
- className = (toplevel) ? "Toplevel" : "Frame";
- }
- }
- Tk_SetClass(new, className);
- if (visualName == NULL) {
- visualName = Tk_GetOption(new, "visual", "Visual");
- }
- if (colormapName == NULL) {
- colormapName = Tk_GetOption(new, "colormap", "Colormap");
- }
- if (visualName != NULL) {
- visual = Tk_GetVisual(interp, new, visualName, &depth,
- (colormapName == NULL) ? &colormap : (Colormap *) NULL);
- if (visual == NULL) {
- goto error;
- }
- Tk_SetWindowVisual(new, visual, depth, colormap);
- }
- if (colormapName != NULL) {
- colormap = Tk_GetColormap(interp, new, colormapName);
- if (colormap == None) {
- goto error;
- }
- Tk_SetWindowColormap(new, colormap);
- }
-
- /*
- * For top-level windows, provide an initial geometry request of
- * 200x200, just so the window looks nicer on the screen if it
- * doesn't request a size for itself.
- */
-
- if (toplevel) {
- Tk_GeometryRequest(new, 200, 200);
- }
-
- /*
- * Create the widget record, process configuration options, and
- * create event handlers. Then fill in a few additional fields
- * in the widget record from the special options.
- */
-
- framePtr = (Frame *) ckalloc(sizeof(Frame));
- framePtr->tkwin = new;
- framePtr->display = Tk_Display(new);
- framePtr->interp = interp;
- framePtr->widgetCmd = Tcl_CreateCommand(interp,
- Tk_PathName(new), FrameWidgetCmd,
- (ClientData) framePtr, FrameCmdDeletedProc);
- framePtr->className = NULL;
- framePtr->mask = (toplevel) ? TOPLEVEL : FRAME;
- framePtr->screenName = NULL;
- framePtr->visualName = NULL;
- framePtr->colormapName = NULL;
- framePtr->colormap = colormap;
- framePtr->border = NULL;
- framePtr->borderWidth = 0;
- framePtr->relief = TK_RELIEF_FLAT;
- framePtr->highlightWidth = 0;
- framePtr->highlightBgColorPtr = NULL;
- framePtr->highlightColorPtr = NULL;
- framePtr->width = 0;
- framePtr->height = 0;
- framePtr->cursor = None;
- framePtr->takeFocus = NULL;
- framePtr->flags = 0;
- Tk_CreateEventHandler(new, ExposureMask|StructureNotifyMask|FocusChangeMask,
- FrameEventProc, (ClientData) framePtr);
- if (ConfigureFrame(interp, framePtr, argc-2, argv+2, 0) != TCL_OK) {
- goto error;
- }
- if (toplevel) {
- Tcl_DoWhenIdle(MapFrame, (ClientData) framePtr);
- }
- #ifdef STk_CODE
- STk_sharp_dot_result(interp,Tk_PathName(new));
- #else
- interp->result = Tk_PathName(new);
- #endif
- return TCL_OK;
-
- error:
- if (new != NULL) {
- Tk_DestroyWindow(new);
- }
- return TCL_ERROR;
- }
-
- /*
- *--------------------------------------------------------------
- *
- * FrameWidgetCmd --
- *
- * This procedure is invoked to process the Tcl command
- * that corresponds to a frame widget. See the user
- * documentation for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
- static int
- FrameWidgetCmd(clientData, interp, argc, argv)
- ClientData clientData; /* Information about frame widget. */
- Tcl_Interp *interp; /* Current interpreter. */
- int argc; /* Number of arguments. */
- char **argv; /* Argument strings. */
- {
- register Frame *framePtr = (Frame *) clientData;
- int result = TCL_OK;
- size_t length;
- int c, i;
-
- if (argc < 2) {
- Tcl_AppendResult(interp, "wrong # args: should be \"",
- argv[0], " option ?arg arg ...?\"", (char *) NULL);
- return TCL_ERROR;
- }
- Tcl_Preserve((ClientData) framePtr);
- c = argv[1][0];
- length = strlen(argv[1]);
- if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
- && (length >= 2)) {
- if (argc != 3) {
- Tcl_AppendResult(interp, "wrong # args: should be \"",
- argv[0], " cget option\"",
- (char *) NULL);
- result = TCL_ERROR;
- goto done;
- }
- result = Tk_ConfigureValue(interp, framePtr->tkwin, configSpecs,
- (char *) framePtr, argv[2], framePtr->mask);
- } else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
- && (length >= 2)) {
- if (argc == 2) {
- result = Tk_ConfigureInfo(interp, framePtr->tkwin, configSpecs,
- (char *) framePtr, (char *) NULL, framePtr->mask);
- } else if (argc == 3) {
- result = Tk_ConfigureInfo(interp, framePtr->tkwin, configSpecs,
- (char *) framePtr, argv[2], framePtr->mask);
- } else {
- /*
- * Don't allow the options -class, -newcmap, -screen,
- * or -visual to be changed.
- */
-
- for (i = 2; i < argc; i++) {
- length = strlen(argv[i]);
- if (length < 2) {
- continue;
- }
- c = argv[i][1];
- if (((c == 'c') && (strncmp(argv[i], "-class", length) == 0)
- && (length >= 2))
- || ((c == 'c') && (framePtr->mask == TOPLEVEL)
- && (strncmp(argv[i], "-colormap", length) == 0))
- || ((c == 's') && (framePtr->mask == TOPLEVEL)
- && (strncmp(argv[i], "-screen", length) == 0))
- || ((c == 'v') && (framePtr->mask == TOPLEVEL)
- && (strncmp(argv[i], "-visual", length) == 0))) {
- Tcl_AppendResult(interp, "can't modify ", argv[i],
- " option after widget is created", (char *) NULL);
- result = TCL_ERROR;
- goto done;
- }
- }
- result = ConfigureFrame(interp, framePtr, argc-2, argv+2,
- TK_CONFIG_ARGV_ONLY);
- }
- } else {
- Tcl_AppendResult(interp, "bad option \"", argv[1],
- "\": must be cget or configure", (char *) NULL);
- result = TCL_ERROR;
- }
-
- done:
- Tcl_Release((ClientData) framePtr);
- return result;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DestroyFrame --
- *
- * This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
- * to clean up the internal structure of a frame at a safe time
- * (when no-one is using it anymore).
- *
- * Results:
- * None.
- *
- * Side effects:
- * Everything associated with the frame is freed up.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DestroyFrame(memPtr)
- char *memPtr; /* Info about frame widget. */
- {
- register Frame *framePtr = (Frame *) memPtr;
-
- Tk_FreeOptions(configSpecs, (char *) framePtr, framePtr->display,
- framePtr->mask);
- if (framePtr->colormap != None) {
- Tk_FreeColormap(framePtr->display, framePtr->colormap);
- }
- ckfree((char *) framePtr);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * ConfigureFrame --
- *
- * This procedure is called to process an argv/argc list, plus
- * the Tk option database, in order to configure (or
- * reconfigure) a frame widget.
- *
- * Results:
- * The return value is a standard Tcl result. If TCL_ERROR is
- * returned, then interp->result contains an error message.
- *
- * Side effects:
- * Configuration information, such as text string, colors, font,
- * etc. get set for framePtr; old resources get freed, if there
- * were any.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- ConfigureFrame(interp, framePtr, argc, argv, flags)
- Tcl_Interp *interp; /* Used for error reporting. */
- register Frame *framePtr; /* Information about widget; may or may
- * not already have values for some fields. */
- int argc; /* Number of valid entries in argv. */
- char **argv; /* Arguments. */
- int flags; /* Flags to pass to Tk_ConfigureWidget. */
- {
- if (Tk_ConfigureWidget(interp, framePtr->tkwin, configSpecs,
- argc, argv, (char *) framePtr, flags | framePtr->mask) != TCL_OK) {
- return TCL_ERROR;
- }
-
- if (framePtr->border != NULL) {
- Tk_SetBackgroundFromBorder(framePtr->tkwin, framePtr->border);
- }
- if (framePtr->highlightWidth < 0) {
- framePtr->highlightWidth = 0;
- }
- Tk_SetInternalBorder(framePtr->tkwin,
- framePtr->borderWidth + framePtr->highlightWidth);
- if ((framePtr->width > 0) || (framePtr->height > 0)) {
- Tk_GeometryRequest(framePtr->tkwin, framePtr->width,
- framePtr->height);
- }
-
- if (Tk_IsMapped(framePtr->tkwin)) {
- if (!(framePtr->flags & REDRAW_PENDING)) {
- Tcl_DoWhenIdle(DisplayFrame, (ClientData) framePtr);
- }
- framePtr->flags |= REDRAW_PENDING;
- }
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DisplayFrame --
- *
- * This procedure is invoked to display a frame widget.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Commands are output to X to display the frame in its
- * current mode.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DisplayFrame(clientData)
- ClientData clientData; /* Information about widget. */
- {
- register Frame *framePtr = (Frame *) clientData;
- register Tk_Window tkwin = framePtr->tkwin;
- GC gc;
-
- framePtr->flags &= ~REDRAW_PENDING;
- if ((framePtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
- return;
- }
-
- if (framePtr->border != NULL) {
- Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin),
- framePtr->border, framePtr->highlightWidth,
- framePtr->highlightWidth,
- Tk_Width(tkwin) - 2*framePtr->highlightWidth,
- Tk_Height(tkwin) - 2*framePtr->highlightWidth,
- framePtr->borderWidth, framePtr->relief);
- }
- if (framePtr->highlightWidth != 0) {
- if (framePtr->flags & GOT_FOCUS) {
- gc = Tk_GCForColor(framePtr->highlightColorPtr,
- Tk_WindowId(tkwin));
- } else {
- gc = Tk_GCForColor(framePtr->highlightBgColorPtr,
- Tk_WindowId(tkwin));
- }
- Tk_DrawFocusHighlight(tkwin, gc, framePtr->highlightWidth,
- Tk_WindowId(tkwin));
- }
- }
-
- /*
- *--------------------------------------------------------------
- *
- * FrameEventProc --
- *
- * This procedure is invoked by the Tk dispatcher on
- * structure changes to a frame. For frames with 3D
- * borders, this procedure is also invoked for exposures.
- *
- * Results:
- * None.
- *
- * Side effects:
- * When the window gets deleted, internal structures get
- * cleaned up. When it gets exposed, it is redisplayed.
- *
- *--------------------------------------------------------------
- */
-
- static void
- FrameEventProc(clientData, eventPtr)
- ClientData clientData; /* Information about window. */
- register XEvent *eventPtr; /* Information about event. */
- {
- register Frame *framePtr = (Frame *) clientData;
-
- if (((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0))
- || (eventPtr->type == ConfigureNotify)) {
- goto redraw;
- } else if (eventPtr->type == DestroyNotify) {
- if (framePtr->tkwin != NULL) {
- framePtr->tkwin = NULL;
- Tcl_DeleteCommand(framePtr->interp,
- Tcl_GetCommandName(framePtr->interp, framePtr->widgetCmd));
- }
- if (framePtr->flags & REDRAW_PENDING) {
- Tcl_CancelIdleCall(DisplayFrame, (ClientData) framePtr);
- }
- Tcl_CancelIdleCall(MapFrame, (ClientData) framePtr);
- Tcl_EventuallyFree((ClientData) framePtr, DestroyFrame);
- } else if (eventPtr->type == FocusIn) {
- if (eventPtr->xfocus.detail != NotifyInferior) {
- framePtr->flags |= GOT_FOCUS;
- if (framePtr->highlightWidth > 0) {
- goto redraw;
- }
- }
- } else if (eventPtr->type == FocusOut) {
- if (eventPtr->xfocus.detail != NotifyInferior) {
- framePtr->flags &= ~GOT_FOCUS;
- if (framePtr->highlightWidth > 0) {
- goto redraw;
- }
- }
- }
- return;
-
- redraw:
- if ((framePtr->tkwin != NULL) && !(framePtr->flags & REDRAW_PENDING)) {
- Tcl_DoWhenIdle(DisplayFrame, (ClientData) framePtr);
- framePtr->flags |= REDRAW_PENDING;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * FrameCmdDeletedProc --
- *
- * This procedure is invoked when a widget command is deleted. If
- * the widget isn't already in the process of being destroyed,
- * this command destroys it.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The widget is destroyed.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- FrameCmdDeletedProc(clientData)
- ClientData clientData; /* Pointer to widget record for widget. */
- {
- Frame *framePtr = (Frame *) clientData;
- Tk_Window tkwin = framePtr->tkwin;
-
- /*
- * This procedure could be invoked either because the window was
- * destroyed and the command was then deleted (in which case tkwin
- * is NULL) or because the command was deleted, and then this procedure
- * destroys the widget.
- */
-
- if (tkwin != NULL) {
- framePtr->tkwin = NULL;
- Tk_DestroyWindow(tkwin);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * MapFrame --
- *
- * This procedure is invoked as a when-idle handler to map a
- * newly-created top-level frame.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The frame given by the clientData argument is mapped.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- MapFrame(clientData)
- ClientData clientData; /* Pointer to frame structure. */
- {
- Frame *framePtr = (Frame *) clientData;
-
- /*
- * Wait for all other background events to be processed before
- * mapping window. This ensures that the window's correct geometry
- * will have been determined before it is first mapped, so that the
- * window manager doesn't get a false idea of its desired geometry.
- */
-
- Tcl_Preserve((ClientData) framePtr);
- while (1) {
- if (Tcl_DoOneEvent(TCL_IDLE_EVENTS) == 0) {
- break;
- }
-
- /*
- * After each event, make sure that the window still exists
- * and quit if the window has been destroyed.
- */
-
- if (framePtr->tkwin == NULL) {
- Tcl_Release((ClientData) framePtr);
- return;
- }
- }
- Tk_MapWindow(framePtr->tkwin);
- Tcl_Release((ClientData) framePtr);
- }
-