1 |
/* $Header$ */
|
2 |
|
3 |
/*
|
4 |
* tkFrame.c --
|
5 |
*
|
6 |
* This module implements "frame" and "toplevel" widgets for
|
7 |
* the Tk toolkit. Frames are windows with a background color
|
8 |
* and possibly a 3-D effect, but not much else in the way of
|
9 |
* attributes.
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10 |
*
|
11 |
* Copyright (c) 1990-1994 The Regents of the University of California.
|
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* Copyright (c) 1994-1997 Sun Microsystems, Inc.
|
13 |
*
|
14 |
* See the file "license.terms" for information on usage and redistribution
|
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
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*
|
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* RCS: @(#) $Id: tkframe.c,v 1.1.1.1 2001/06/13 05:01:10 dtashley Exp $
|
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*/
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|
20 |
#include "default.h"
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21 |
#include "tkPort.h"
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22 |
#include "tkInt.h"
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23 |
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24 |
/*
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25 |
* A data structure of the following type is kept for each
|
26 |
* frame that currently exists for this process:
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27 |
*/
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28 |
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typedef struct {
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30 |
Tk_Window tkwin; /* Window that embodies the frame. NULL
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31 |
* means that the window has been destroyed
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32 |
* but the data structures haven't yet been
|
33 |
* cleaned up. */
|
34 |
Display *display; /* Display containing widget. Used, among
|
35 |
* other things, so that resources can be
|
36 |
* freed even after tkwin has gone away. */
|
37 |
Tcl_Interp *interp; /* Interpreter associated with widget. Used
|
38 |
* to delete widget command. */
|
39 |
Tcl_Command widgetCmd; /* Token for frame's widget command. */
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40 |
char *className; /* Class name for widget (from configuration
|
41 |
* option). Malloc-ed. */
|
42 |
int mask; /* Either FRAME or TOPLEVEL; used to select
|
43 |
* which configuration options are valid for
|
44 |
* widget. */
|
45 |
char *screenName; /* Screen on which widget is created. Non-null
|
46 |
* only for top-levels. Malloc-ed, may be
|
47 |
* NULL. */
|
48 |
char *visualName; /* Textual description of visual for window,
|
49 |
* from -visual option. Malloc-ed, may be
|
50 |
* NULL. */
|
51 |
char *colormapName; /* Textual description of colormap for window,
|
52 |
* from -colormap option. Malloc-ed, may be
|
53 |
* NULL. */
|
54 |
char *menuName; /* Textual description of menu to use for
|
55 |
* menubar. Malloc-ed, may be NULL. */
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56 |
Colormap colormap; /* If not None, identifies a colormap
|
57 |
* allocated for this window, which must be
|
58 |
* freed when the window is deleted. */
|
59 |
Tk_3DBorder border; /* Structure used to draw 3-D border and
|
60 |
* background. NULL means no background
|
61 |
* or border. */
|
62 |
int borderWidth; /* Width of 3-D border (if any). */
|
63 |
int relief; /* 3-d effect: TK_RELIEF_RAISED etc. */
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64 |
int highlightWidth; /* Width in pixels of highlight to draw
|
65 |
* around widget when it has the focus.
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66 |
* 0 means don't draw a highlight. */
|
67 |
XColor *highlightBgColorPtr;
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68 |
/* Color for drawing traversal highlight
|
69 |
* area when highlight is off. */
|
70 |
XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
|
71 |
int width; /* Width to request for window. <= 0 means
|
72 |
* don't request any size. */
|
73 |
int height; /* Height to request for window. <= 0 means
|
74 |
* don't request any size. */
|
75 |
Tk_Cursor cursor; /* Current cursor for window, or None. */
|
76 |
char *takeFocus; /* Value of -takefocus option; not used in
|
77 |
* the C code, but used by keyboard traversal
|
78 |
* scripts. Malloc'ed, but may be NULL. */
|
79 |
int isContainer; /* 1 means this window is a container, 0 means
|
80 |
* that it isn't. */
|
81 |
char *useThis; /* If the window is embedded, this points to
|
82 |
* the name of the window in which it is
|
83 |
* embedded (malloc'ed). For non-embedded
|
84 |
* windows this is NULL. */
|
85 |
int flags; /* Various flags; see below for
|
86 |
* definitions. */
|
87 |
} Frame;
|
88 |
|
89 |
/*
|
90 |
* Flag bits for frames:
|
91 |
*
|
92 |
* REDRAW_PENDING: Non-zero means a DoWhenIdle handler
|
93 |
* has already been queued to redraw
|
94 |
* this window.
|
95 |
* GOT_FOCUS: Non-zero means this widget currently
|
96 |
* has the input focus.
|
97 |
*/
|
98 |
|
99 |
#define REDRAW_PENDING 1
|
100 |
#define GOT_FOCUS 4
|
101 |
|
102 |
/*
|
103 |
* The following flag bits are used so that there can be separate
|
104 |
* defaults for some configuration options for frames and toplevels.
|
105 |
*/
|
106 |
|
107 |
#define FRAME TK_CONFIG_USER_BIT
|
108 |
#define TOPLEVEL (TK_CONFIG_USER_BIT << 1)
|
109 |
#define BOTH (FRAME | TOPLEVEL)
|
110 |
|
111 |
static Tk_ConfigSpec configSpecs[] = {
|
112 |
{TK_CONFIG_BORDER, "-background", "background", "Background",
|
113 |
DEF_FRAME_BG_COLOR, Tk_Offset(Frame, border),
|
114 |
BOTH|TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
|
115 |
{TK_CONFIG_BORDER, "-background", "background", "Background",
|
116 |
DEF_FRAME_BG_MONO, Tk_Offset(Frame, border),
|
117 |
BOTH|TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
|
118 |
{TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
|
119 |
(char *) NULL, 0, BOTH},
|
120 |
{TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
|
121 |
(char *) NULL, 0, BOTH},
|
122 |
{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
|
123 |
DEF_FRAME_BORDER_WIDTH, Tk_Offset(Frame, borderWidth), BOTH},
|
124 |
{TK_CONFIG_STRING, "-class", "class", "Class",
|
125 |
DEF_FRAME_CLASS, Tk_Offset(Frame, className), FRAME},
|
126 |
{TK_CONFIG_STRING, "-class", "class", "Class",
|
127 |
DEF_TOPLEVEL_CLASS, Tk_Offset(Frame, className), TOPLEVEL},
|
128 |
{TK_CONFIG_STRING, "-colormap", "colormap", "Colormap",
|
129 |
DEF_FRAME_COLORMAP, Tk_Offset(Frame, colormapName),
|
130 |
BOTH|TK_CONFIG_NULL_OK},
|
131 |
{TK_CONFIG_BOOLEAN, "-container", "container", "Container",
|
132 |
DEF_FRAME_CONTAINER, Tk_Offset(Frame, isContainer), BOTH},
|
133 |
{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
|
134 |
DEF_FRAME_CURSOR, Tk_Offset(Frame, cursor), BOTH|TK_CONFIG_NULL_OK},
|
135 |
{TK_CONFIG_PIXELS, "-height", "height", "Height",
|
136 |
DEF_FRAME_HEIGHT, Tk_Offset(Frame, height), BOTH},
|
137 |
{TK_CONFIG_COLOR, "-highlightbackground", "highlightBackground",
|
138 |
"HighlightBackground", DEF_FRAME_HIGHLIGHT_BG,
|
139 |
Tk_Offset(Frame, highlightBgColorPtr), BOTH},
|
140 |
{TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
|
141 |
DEF_FRAME_HIGHLIGHT, Tk_Offset(Frame, highlightColorPtr), BOTH},
|
142 |
{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
|
143 |
"HighlightThickness",
|
144 |
DEF_FRAME_HIGHLIGHT_WIDTH, Tk_Offset(Frame, highlightWidth), BOTH},
|
145 |
{TK_CONFIG_STRING, "-menu", "menu", "Menu",
|
146 |
DEF_TOPLEVEL_MENU, Tk_Offset(Frame, menuName),
|
147 |
TOPLEVEL|TK_CONFIG_NULL_OK},
|
148 |
{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
|
149 |
DEF_FRAME_RELIEF, Tk_Offset(Frame, relief), BOTH},
|
150 |
{TK_CONFIG_STRING, "-screen", "screen", "Screen",
|
151 |
DEF_TOPLEVEL_SCREEN, Tk_Offset(Frame, screenName),
|
152 |
TOPLEVEL|TK_CONFIG_NULL_OK},
|
153 |
{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
|
154 |
DEF_FRAME_TAKE_FOCUS, Tk_Offset(Frame, takeFocus),
|
155 |
BOTH|TK_CONFIG_NULL_OK},
|
156 |
{TK_CONFIG_STRING, "-use", "use", "Use",
|
157 |
DEF_FRAME_USE, Tk_Offset(Frame, useThis), TOPLEVEL|TK_CONFIG_NULL_OK},
|
158 |
{TK_CONFIG_STRING, "-visual", "visual", "Visual",
|
159 |
DEF_FRAME_VISUAL, Tk_Offset(Frame, visualName),
|
160 |
BOTH|TK_CONFIG_NULL_OK},
|
161 |
{TK_CONFIG_PIXELS, "-width", "width", "Width",
|
162 |
DEF_FRAME_WIDTH, Tk_Offset(Frame, width), BOTH},
|
163 |
{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
|
164 |
(char *) NULL, 0, 0}
|
165 |
};
|
166 |
|
167 |
/*
|
168 |
* Forward declarations for procedures defined later in this file:
|
169 |
*/
|
170 |
|
171 |
static int ConfigureFrame _ANSI_ARGS_((Tcl_Interp *interp,
|
172 |
Frame *framePtr, int objc, Tcl_Obj *CONST objv[],
|
173 |
int flags));
|
174 |
static int CreateFrame _ANSI_ARGS_((ClientData clientData,
|
175 |
Tcl_Interp *interp, int objc, Tcl_Obj *CONST argv[],
|
176 |
int toplevel, char *appName));
|
177 |
static void DestroyFrame _ANSI_ARGS_((char *memPtr));
|
178 |
static void DisplayFrame _ANSI_ARGS_((ClientData clientData));
|
179 |
static void FrameCmdDeletedProc _ANSI_ARGS_((
|
180 |
ClientData clientData));
|
181 |
static void FrameEventProc _ANSI_ARGS_((ClientData clientData,
|
182 |
XEvent *eventPtr));
|
183 |
static int FrameWidgetObjCmd _ANSI_ARGS_((ClientData clientData,
|
184 |
Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
|
185 |
static void MapFrame _ANSI_ARGS_((ClientData clientData));
|
186 |
|
187 |
/*
|
188 |
*--------------------------------------------------------------
|
189 |
*
|
190 |
* Tk_FrameObjCmd, Tk_ToplevelObjCmd --
|
191 |
*
|
192 |
* These procedures are invoked to process the "frame" and
|
193 |
* "toplevel" Tcl commands. See the user documentation for
|
194 |
* details on what they do.
|
195 |
*
|
196 |
* Results:
|
197 |
* A standard Tcl result.
|
198 |
*
|
199 |
* Side effects:
|
200 |
* See the user documentation. These procedures are just wrappers;
|
201 |
* they call ButtonCreate to do all of the real work.
|
202 |
*
|
203 |
*--------------------------------------------------------------
|
204 |
*/
|
205 |
|
206 |
int
|
207 |
Tk_FrameObjCmd(clientData, interp, objc, objv)
|
208 |
ClientData clientData; /* Main window associated with
|
209 |
* interpreter. */
|
210 |
Tcl_Interp *interp; /* Current interpreter. */
|
211 |
int objc; /* Number of arguments. */
|
212 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
213 |
{
|
214 |
return CreateFrame(clientData, interp, objc, objv, 0, (char *) NULL);
|
215 |
}
|
216 |
|
217 |
int
|
218 |
Tk_ToplevelObjCmd(clientData, interp, objc, objv)
|
219 |
ClientData clientData; /* Main window associated with
|
220 |
* interpreter. */
|
221 |
Tcl_Interp *interp; /* Current interpreter. */
|
222 |
int objc; /* Number of arguments. */
|
223 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
224 |
{
|
225 |
return CreateFrame(clientData, interp, objc, objv, 1, (char *) NULL);
|
226 |
}
|
227 |
|
228 |
/*
|
229 |
*--------------------------------------------------------------
|
230 |
*
|
231 |
* TkCreateFrame --
|
232 |
*
|
233 |
* This procedure is invoked to process the "frame" and "toplevel"
|
234 |
* Tcl commands; it is also invoked directly by Tk_Init to create
|
235 |
* a new main window. See the user documentation for the "frame"
|
236 |
* and "toplevel" commands for details on what it does.
|
237 |
*
|
238 |
* Results:
|
239 |
* A standard Tcl result.
|
240 |
*
|
241 |
* Side effects:
|
242 |
* See the user documentation.
|
243 |
*
|
244 |
*--------------------------------------------------------------
|
245 |
*/
|
246 |
|
247 |
int
|
248 |
TkCreateFrame(clientData, interp, argc, argv, toplevel, appName)
|
249 |
ClientData clientData; /* Main window associated with interpreter.
|
250 |
* If we're called by Tk_Init to create a
|
251 |
* new application, then this is NULL. */
|
252 |
Tcl_Interp *interp; /* Current interpreter. */
|
253 |
int argc; /* Number of arguments. */
|
254 |
char **argv; /* Argument strings. */
|
255 |
int toplevel; /* Non-zero means create a toplevel window,
|
256 |
* zero means create a frame. */
|
257 |
char *appName; /* Should only be non-NULL if clientData is
|
258 |
* NULL: gives the base name to use for the
|
259 |
* new application. */
|
260 |
{
|
261 |
int result, i;
|
262 |
Tcl_Obj **objv = (Tcl_Obj **) ckalloc((argc+1) * sizeof(Tcl_Obj **));
|
263 |
for (i=0; i<argc; i++) {
|
264 |
objv[i] = Tcl_NewStringObj(argv[i], -1);
|
265 |
Tcl_IncrRefCount(objv[i]);
|
266 |
}
|
267 |
objv[argc] = NULL;
|
268 |
result = CreateFrame(clientData, interp, argc, objv, toplevel, appName);
|
269 |
for (i=0; i<argc; i++) {
|
270 |
Tcl_DecrRefCount(objv[i]);
|
271 |
}
|
272 |
ckfree((char *) objv);
|
273 |
return result;
|
274 |
}
|
275 |
|
276 |
static int
|
277 |
CreateFrame(clientData, interp, objc, objv, toplevel, appName)
|
278 |
ClientData clientData; /* Main window associated with interpreter.
|
279 |
* If we're called by Tk_Init to create a
|
280 |
* new application, then this is NULL. */
|
281 |
Tcl_Interp *interp; /* Current interpreter. */
|
282 |
int objc; /* Number of arguments. */
|
283 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
284 |
int toplevel; /* Non-zero means create a toplevel window,
|
285 |
* zero means create a frame. */
|
286 |
char *appName; /* Should only be non-NULL if clientData is
|
287 |
* NULL: gives the base name to use for the
|
288 |
* new application. */
|
289 |
{
|
290 |
Tk_Window tkwin = (Tk_Window) clientData;
|
291 |
Frame *framePtr;
|
292 |
Tk_Window new;
|
293 |
char *className, *screenName, *visualName, *colormapName, *arg, *useOption;
|
294 |
int i, c, depth;
|
295 |
size_t length;
|
296 |
unsigned int mask;
|
297 |
Colormap colormap;
|
298 |
Visual *visual;
|
299 |
|
300 |
if (objc < 2) {
|
301 |
Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
|
302 |
return TCL_ERROR;
|
303 |
}
|
304 |
|
305 |
/*
|
306 |
* Pre-process the argument list. Scan through it to find any
|
307 |
* "-class", "-screen", "-visual", and "-colormap" options. These
|
308 |
* arguments need to be processed specially, before the window
|
309 |
* is configured using the usual Tk mechanisms.
|
310 |
*/
|
311 |
|
312 |
className = colormapName = screenName = visualName = useOption = NULL;
|
313 |
colormap = None;
|
314 |
for (i = 2; i < objc; i += 2) {
|
315 |
arg = Tcl_GetStringFromObj(objv[i], (int *) &length);
|
316 |
if (length < 2) {
|
317 |
continue;
|
318 |
}
|
319 |
c = arg[1];
|
320 |
if ((c == 'c') && (strncmp(arg, "-class", length) == 0)
|
321 |
&& (length >= 3)) {
|
322 |
className = Tcl_GetString(objv[i+1]);
|
323 |
} else if ((c == 'c')
|
324 |
&& (strncmp(arg, "-colormap", length) == 0)) {
|
325 |
colormapName = Tcl_GetString(objv[i+1]);
|
326 |
} else if ((c == 's') && toplevel
|
327 |
&& (strncmp(arg, "-screen", length) == 0)) {
|
328 |
screenName = Tcl_GetString(objv[i+1]);
|
329 |
} else if ((c == 'u') && toplevel
|
330 |
&& (strncmp(arg, "-use", length) == 0)) {
|
331 |
useOption = Tcl_GetString(objv[i+1]);
|
332 |
} else if ((c == 'v')
|
333 |
&& (strncmp(arg, "-visual", length) == 0)) {
|
334 |
visualName = Tcl_GetString(objv[i+1]);
|
335 |
}
|
336 |
}
|
337 |
|
338 |
/*
|
339 |
* Create the window, and deal with the special options -use,
|
340 |
* -classname, -colormap, -screenname, and -visual. These options
|
341 |
* must be handle before calling ConfigureFrame below, and they must
|
342 |
* also be processed in a particular order, for the following
|
343 |
* reasons:
|
344 |
* 1. Must set the window's class before calling ConfigureFrame,
|
345 |
* so that unspecified options are looked up in the option
|
346 |
* database using the correct class.
|
347 |
* 2. Must set visual information before calling ConfigureFrame
|
348 |
* so that colors are allocated in a proper colormap.
|
349 |
* 3. Must call TkpUseWindow before setting non-default visual
|
350 |
* information, since TkpUseWindow changes the defaults.
|
351 |
*/
|
352 |
|
353 |
if (screenName == NULL) {
|
354 |
screenName = (toplevel) ? "" : NULL;
|
355 |
}
|
356 |
if (tkwin != NULL) {
|
357 |
new = Tk_CreateWindowFromPath(interp, tkwin, Tcl_GetString(objv[1]),
|
358 |
screenName);
|
359 |
} else {
|
360 |
/*
|
361 |
* We were called from Tk_Init; create a new application.
|
362 |
*/
|
363 |
|
364 |
if (appName == NULL) {
|
365 |
panic("TkCreateFrame didn't get application name");
|
366 |
}
|
367 |
new = TkCreateMainWindow(interp, screenName, appName);
|
368 |
}
|
369 |
if (new == NULL) {
|
370 |
goto error;
|
371 |
}
|
372 |
if (className == NULL) {
|
373 |
className = Tk_GetOption(new, "class", "Class");
|
374 |
if (className == NULL) {
|
375 |
className = (toplevel) ? "Toplevel" : "Frame";
|
376 |
}
|
377 |
}
|
378 |
Tk_SetClass(new, className);
|
379 |
if (useOption == NULL) {
|
380 |
useOption = Tk_GetOption(new, "use", "Use");
|
381 |
}
|
382 |
if (useOption != NULL) {
|
383 |
if (TkpUseWindow(interp, new, useOption) != TCL_OK) {
|
384 |
goto error;
|
385 |
}
|
386 |
}
|
387 |
if (visualName == NULL) {
|
388 |
visualName = Tk_GetOption(new, "visual", "Visual");
|
389 |
}
|
390 |
if (colormapName == NULL) {
|
391 |
colormapName = Tk_GetOption(new, "colormap", "Colormap");
|
392 |
}
|
393 |
if (visualName != NULL) {
|
394 |
visual = Tk_GetVisual(interp, new, visualName, &depth,
|
395 |
(colormapName == NULL) ? &colormap : (Colormap *) NULL);
|
396 |
if (visual == NULL) {
|
397 |
goto error;
|
398 |
}
|
399 |
Tk_SetWindowVisual(new, visual, depth, colormap);
|
400 |
}
|
401 |
if (colormapName != NULL) {
|
402 |
colormap = Tk_GetColormap(interp, new, colormapName);
|
403 |
if (colormap == None) {
|
404 |
goto error;
|
405 |
}
|
406 |
Tk_SetWindowColormap(new, colormap);
|
407 |
}
|
408 |
|
409 |
/*
|
410 |
* For top-level windows, provide an initial geometry request of
|
411 |
* 200x200, just so the window looks nicer on the screen if it
|
412 |
* doesn't request a size for itself.
|
413 |
*/
|
414 |
|
415 |
if (toplevel) {
|
416 |
Tk_GeometryRequest(new, 200, 200);
|
417 |
}
|
418 |
|
419 |
/*
|
420 |
* Create the widget record, process configuration options, and
|
421 |
* create event handlers. Then fill in a few additional fields
|
422 |
* in the widget record from the special options.
|
423 |
*/
|
424 |
|
425 |
framePtr = (Frame *) ckalloc(sizeof(Frame));
|
426 |
framePtr->tkwin = new;
|
427 |
framePtr->display = Tk_Display(new);
|
428 |
framePtr->interp = interp;
|
429 |
framePtr->widgetCmd = Tcl_CreateObjCommand(interp,
|
430 |
Tk_PathName(new), FrameWidgetObjCmd,
|
431 |
(ClientData) framePtr, FrameCmdDeletedProc);
|
432 |
framePtr->className = NULL;
|
433 |
framePtr->mask = (toplevel) ? TOPLEVEL : FRAME;
|
434 |
framePtr->screenName = NULL;
|
435 |
framePtr->visualName = NULL;
|
436 |
framePtr->colormapName = NULL;
|
437 |
framePtr->colormap = colormap;
|
438 |
framePtr->border = NULL;
|
439 |
framePtr->borderWidth = 0;
|
440 |
framePtr->relief = TK_RELIEF_FLAT;
|
441 |
framePtr->highlightWidth = 0;
|
442 |
framePtr->highlightBgColorPtr = NULL;
|
443 |
framePtr->highlightColorPtr = NULL;
|
444 |
framePtr->width = 0;
|
445 |
framePtr->height = 0;
|
446 |
framePtr->cursor = None;
|
447 |
framePtr->takeFocus = NULL;
|
448 |
framePtr->isContainer = 0;
|
449 |
framePtr->useThis = NULL;
|
450 |
framePtr->flags = 0;
|
451 |
framePtr->menuName = NULL;
|
452 |
|
453 |
/*
|
454 |
* Store backreference to frame widget in window structure.
|
455 |
*/
|
456 |
TkSetClassProcs(new, NULL, (ClientData) framePtr);
|
457 |
|
458 |
mask = ExposureMask | StructureNotifyMask | FocusChangeMask;
|
459 |
if (toplevel) {
|
460 |
mask |= ActivateMask;
|
461 |
}
|
462 |
Tk_CreateEventHandler(new, mask, FrameEventProc, (ClientData) framePtr);
|
463 |
if (ConfigureFrame(interp, framePtr, objc-2, objv+2, 0) != TCL_OK) {
|
464 |
goto error;
|
465 |
}
|
466 |
if ((framePtr->isContainer)) {
|
467 |
if (framePtr->useThis == NULL) {
|
468 |
TkpMakeContainer(framePtr->tkwin);
|
469 |
} else {
|
470 |
Tcl_AppendResult(interp,"A window cannot have both the -use ",
|
471 |
"and the -container option set.");
|
472 |
return TCL_ERROR;
|
473 |
}
|
474 |
}
|
475 |
if (toplevel) {
|
476 |
Tcl_DoWhenIdle(MapFrame, (ClientData) framePtr);
|
477 |
}
|
478 |
Tcl_SetResult(interp, Tk_PathName(new), TCL_STATIC);
|
479 |
return TCL_OK;
|
480 |
|
481 |
error:
|
482 |
if (new != NULL) {
|
483 |
Tk_DestroyWindow(new);
|
484 |
}
|
485 |
return TCL_ERROR;
|
486 |
}
|
487 |
|
488 |
/*
|
489 |
*--------------------------------------------------------------
|
490 |
*
|
491 |
* FrameWidgetObjCmd --
|
492 |
*
|
493 |
* This procedure is invoked to process the Tcl command
|
494 |
* that corresponds to a frame widget. See the user
|
495 |
* documentation for details on what it does.
|
496 |
*
|
497 |
* Results:
|
498 |
* A standard Tcl result.
|
499 |
*
|
500 |
* Side effects:
|
501 |
* See the user documentation.
|
502 |
*
|
503 |
*--------------------------------------------------------------
|
504 |
*/
|
505 |
|
506 |
static int
|
507 |
FrameWidgetObjCmd(clientData, interp, objc, objv)
|
508 |
ClientData clientData; /* Information about frame widget. */
|
509 |
Tcl_Interp *interp; /* Current interpreter. */
|
510 |
int objc; /* Number of arguments. */
|
511 |
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
512 |
{
|
513 |
static char *frameOptions[] = {
|
514 |
"cget", "configure", (char *) NULL
|
515 |
};
|
516 |
enum options {
|
517 |
FRAME_CGET, FRAME_CONFIGURE
|
518 |
};
|
519 |
register Frame *framePtr = (Frame *) clientData;
|
520 |
int result = TCL_OK, index;
|
521 |
size_t length;
|
522 |
int c, i;
|
523 |
|
524 |
if (objc < 2) {
|
525 |
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
|
526 |
return TCL_ERROR;
|
527 |
}
|
528 |
if (Tcl_GetIndexFromObj(interp, objv[1], frameOptions, "option", 0,
|
529 |
&index) != TCL_OK) {
|
530 |
return TCL_ERROR;
|
531 |
}
|
532 |
Tcl_Preserve((ClientData) framePtr);
|
533 |
switch ((enum options) index) {
|
534 |
case FRAME_CGET: {
|
535 |
if (objc != 3) {
|
536 |
Tcl_WrongNumArgs(interp, 2, objv, "option");
|
537 |
result = TCL_ERROR;
|
538 |
goto done;
|
539 |
}
|
540 |
result = Tk_ConfigureValue(interp, framePtr->tkwin, configSpecs,
|
541 |
(char *) framePtr, Tcl_GetString(objv[2]), framePtr->mask);
|
542 |
break;
|
543 |
}
|
544 |
case FRAME_CONFIGURE: {
|
545 |
if (objc == 2) {
|
546 |
result = Tk_ConfigureInfo(interp, framePtr->tkwin, configSpecs,
|
547 |
(char *) framePtr, (char *) NULL, framePtr->mask);
|
548 |
} else if (objc == 3) {
|
549 |
result = Tk_ConfigureInfo(interp, framePtr->tkwin, configSpecs,
|
550 |
(char *) framePtr, Tcl_GetString(objv[2]), framePtr->mask);
|
551 |
} else {
|
552 |
/*
|
553 |
* Don't allow the options -class, -colormap, -container,
|
554 |
* -newcmap, -screen, -use, or -visual to be changed.
|
555 |
*/
|
556 |
|
557 |
for (i = 2; i < objc; i++) {
|
558 |
char *arg = Tcl_GetStringFromObj(objv[i], (int *) &length);
|
559 |
if (length < 2) {
|
560 |
continue;
|
561 |
}
|
562 |
c = arg[1];
|
563 |
if (((c == 'c') && (strncmp(arg, "-class", length) == 0)
|
564 |
&& (length >= 2))
|
565 |
|| ((c == 'c') && (framePtr->mask == TOPLEVEL)
|
566 |
&& (strncmp(arg, "-colormap", length) == 0)
|
567 |
&& (length >= 3))
|
568 |
|| ((c == 'c')
|
569 |
&& (strncmp(arg, "-container", length) == 0)
|
570 |
&& (length >= 3))
|
571 |
|| ((c == 's') && (framePtr->mask == TOPLEVEL)
|
572 |
&& (strncmp(arg, "-screen", length) == 0))
|
573 |
|| ((c == 'u') && (framePtr->mask == TOPLEVEL)
|
574 |
&& (strncmp(arg, "-use", length) == 0))
|
575 |
|| ((c == 'v') && (framePtr->mask == TOPLEVEL)
|
576 |
&& (strncmp(arg, "-visual", length) == 0))) {
|
577 |
Tcl_AppendResult(interp, "can't modify ", arg,
|
578 |
" option after widget is created", (char *) NULL);
|
579 |
result = TCL_ERROR;
|
580 |
goto done;
|
581 |
}
|
582 |
}
|
583 |
result = ConfigureFrame(interp, framePtr, objc-2, objv+2,
|
584 |
TK_CONFIG_ARGV_ONLY);
|
585 |
}
|
586 |
break;
|
587 |
}
|
588 |
}
|
589 |
|
590 |
done:
|
591 |
Tcl_Release((ClientData) framePtr);
|
592 |
return result;
|
593 |
}
|
594 |
|
595 |
/*
|
596 |
*----------------------------------------------------------------------
|
597 |
*
|
598 |
* DestroyFrame --
|
599 |
*
|
600 |
* This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
|
601 |
* to clean up the internal structure of a frame at a safe time
|
602 |
* (when no-one is using it anymore).
|
603 |
*
|
604 |
* Results:
|
605 |
* None.
|
606 |
*
|
607 |
* Side effects:
|
608 |
* Everything associated with the frame is freed up.
|
609 |
*
|
610 |
*----------------------------------------------------------------------
|
611 |
*/
|
612 |
|
613 |
static void
|
614 |
DestroyFrame(memPtr)
|
615 |
char *memPtr; /* Info about frame widget. */
|
616 |
{
|
617 |
register Frame *framePtr = (Frame *) memPtr;
|
618 |
|
619 |
Tk_FreeOptions(configSpecs, (char *) framePtr, framePtr->display,
|
620 |
framePtr->mask);
|
621 |
if (framePtr->colormap != None) {
|
622 |
Tk_FreeColormap(framePtr->display, framePtr->colormap);
|
623 |
}
|
624 |
ckfree((char *) framePtr);
|
625 |
}
|
626 |
|
627 |
/*
|
628 |
*----------------------------------------------------------------------
|
629 |
*
|
630 |
* ConfigureFrame --
|
631 |
*
|
632 |
* This procedure is called to process an objv/objc list, plus
|
633 |
* the Tk option database, in order to configure (or
|
634 |
* reconfigure) a frame widget.
|
635 |
*
|
636 |
* Results:
|
637 |
* The return value is a standard Tcl result. If TCL_ERROR is
|
638 |
* returned, then the interp's result contains an error message.
|
639 |
*
|
640 |
* Side effects:
|
641 |
* Configuration information, such as text string, colors, font,
|
642 |
* etc. get set for framePtr; old resources get freed, if there
|
643 |
* were any.
|
644 |
*
|
645 |
*----------------------------------------------------------------------
|
646 |
*/
|
647 |
|
648 |
static int
|
649 |
ConfigureFrame(interp, framePtr, objc, objv, flags)
|
650 |
Tcl_Interp *interp; /* Used for error reporting. */
|
651 |
register Frame *framePtr; /* Information about widget; may or may
|
652 |
* not already have values for some fields. */
|
653 |
int objc; /* Number of valid entries in objv. */
|
654 |
Tcl_Obj *CONST objv[]; /* Arguments. */
|
655 |
int flags; /* Flags to pass to Tk_ConfigureWidget. */
|
656 |
{
|
657 |
char *oldMenuName;
|
658 |
|
659 |
/*
|
660 |
* Need the old menubar name for the menu code to delete it.
|
661 |
*/
|
662 |
|
663 |
if (framePtr->menuName == NULL) {
|
664 |
oldMenuName = NULL;
|
665 |
} else {
|
666 |
oldMenuName = ckalloc(strlen(framePtr->menuName) + 1);
|
667 |
strcpy(oldMenuName, framePtr->menuName);
|
668 |
}
|
669 |
|
670 |
if (Tk_ConfigureWidget(interp, framePtr->tkwin, configSpecs,
|
671 |
objc, (char **) objv, (char *) framePtr,
|
672 |
flags | framePtr->mask | TK_CONFIG_OBJS) != TCL_OK) {
|
673 |
return TCL_ERROR;
|
674 |
}
|
675 |
|
676 |
if (((oldMenuName == NULL) && (framePtr->menuName != NULL))
|
677 |
|| ((oldMenuName != NULL) && (framePtr->menuName == NULL))
|
678 |
|| ((oldMenuName != NULL) && (framePtr->menuName != NULL)
|
679 |
&& strcmp(oldMenuName, framePtr->menuName) != 0)) {
|
680 |
TkSetWindowMenuBar(interp, framePtr->tkwin, oldMenuName,
|
681 |
framePtr->menuName);
|
682 |
}
|
683 |
|
684 |
if (framePtr->border != NULL) {
|
685 |
Tk_SetBackgroundFromBorder(framePtr->tkwin, framePtr->border);
|
686 |
} else {
|
687 |
Tk_SetWindowBackgroundPixmap(framePtr->tkwin, None);
|
688 |
}
|
689 |
|
690 |
if (framePtr->highlightWidth < 0) {
|
691 |
framePtr->highlightWidth = 0;
|
692 |
}
|
693 |
Tk_SetInternalBorder(framePtr->tkwin,
|
694 |
framePtr->borderWidth + framePtr->highlightWidth);
|
695 |
if ((framePtr->width > 0) || (framePtr->height > 0)) {
|
696 |
Tk_GeometryRequest(framePtr->tkwin, framePtr->width,
|
697 |
framePtr->height);
|
698 |
}
|
699 |
|
700 |
if (oldMenuName != NULL) {
|
701 |
ckfree(oldMenuName);
|
702 |
}
|
703 |
|
704 |
if (Tk_IsMapped(framePtr->tkwin)) {
|
705 |
if (!(framePtr->flags & REDRAW_PENDING)) {
|
706 |
Tcl_DoWhenIdle(DisplayFrame, (ClientData) framePtr);
|
707 |
}
|
708 |
framePtr->flags |= REDRAW_PENDING;
|
709 |
}
|
710 |
return TCL_OK;
|
711 |
}
|
712 |
|
713 |
/*
|
714 |
*----------------------------------------------------------------------
|
715 |
*
|
716 |
* DisplayFrame --
|
717 |
*
|
718 |
* This procedure is invoked to display a frame widget.
|
719 |
*
|
720 |
* Results:
|
721 |
* None.
|
722 |
*
|
723 |
* Side effects:
|
724 |
* Commands are output to X to display the frame in its
|
725 |
* current mode.
|
726 |
*
|
727 |
*----------------------------------------------------------------------
|
728 |
*/
|
729 |
|
730 |
static void
|
731 |
DisplayFrame(clientData)
|
732 |
ClientData clientData; /* Information about widget. */
|
733 |
{
|
734 |
register Frame *framePtr = (Frame *) clientData;
|
735 |
register Tk_Window tkwin = framePtr->tkwin;
|
736 |
void (* drawFunction) _ANSI_ARGS_((Tk_Window, Drawable, Tk_3DBorder,
|
737 |
int, int, int, int, int, int)) = Tk_Fill3DRectangle;
|
738 |
|
739 |
framePtr->flags &= ~REDRAW_PENDING;
|
740 |
if ((framePtr->tkwin == NULL) || !Tk_IsMapped(tkwin)
|
741 |
|| framePtr->isContainer) {
|
742 |
return;
|
743 |
}
|
744 |
|
745 |
if (framePtr->border != NULL) {
|
746 |
drawFunction(tkwin, Tk_WindowId(tkwin),
|
747 |
framePtr->border, framePtr->highlightWidth,
|
748 |
framePtr->highlightWidth,
|
749 |
Tk_Width(tkwin) - 2*framePtr->highlightWidth,
|
750 |
Tk_Height(tkwin) - 2*framePtr->highlightWidth,
|
751 |
framePtr->borderWidth, framePtr->relief);
|
752 |
}
|
753 |
if (framePtr->highlightWidth != 0) {
|
754 |
GC fgGC, bgGC;
|
755 |
|
756 |
bgGC = Tk_GCForColor(framePtr->highlightBgColorPtr,
|
757 |
Tk_WindowId(tkwin));
|
758 |
if (framePtr->flags & GOT_FOCUS) {
|
759 |
fgGC = Tk_GCForColor(framePtr->highlightColorPtr,
|
760 |
Tk_WindowId(tkwin));
|
761 |
TkpDrawHighlightBorder(tkwin, fgGC, bgGC, framePtr->highlightWidth,
|
762 |
Tk_WindowId(tkwin));
|
763 |
} else {
|
764 |
TkpDrawHighlightBorder(tkwin, bgGC, bgGC, framePtr->highlightWidth,
|
765 |
Tk_WindowId(tkwin));
|
766 |
}
|
767 |
}
|
768 |
}
|
769 |
|
770 |
/*
|
771 |
*--------------------------------------------------------------
|
772 |
*
|
773 |
* FrameEventProc --
|
774 |
*
|
775 |
* This procedure is invoked by the Tk dispatcher on
|
776 |
* structure changes to a frame. For frames with 3D
|
777 |
* borders, this procedure is also invoked for exposures.
|
778 |
*
|
779 |
* Results:
|
780 |
* None.
|
781 |
*
|
782 |
* Side effects:
|
783 |
* When the window gets deleted, internal structures get
|
784 |
* cleaned up. When it gets exposed, it is redisplayed.
|
785 |
*
|
786 |
*--------------------------------------------------------------
|
787 |
*/
|
788 |
|
789 |
static void
|
790 |
FrameEventProc(clientData, eventPtr)
|
791 |
ClientData clientData; /* Information about window. */
|
792 |
register XEvent *eventPtr; /* Information about event. */
|
793 |
{
|
794 |
register Frame *framePtr = (Frame *) clientData;
|
795 |
|
796 |
if (((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0))
|
797 |
|| (eventPtr->type == ConfigureNotify)) {
|
798 |
goto redraw;
|
799 |
} else if (eventPtr->type == DestroyNotify) {
|
800 |
if (framePtr->menuName != NULL) {
|
801 |
TkSetWindowMenuBar(framePtr->interp, framePtr->tkwin,
|
802 |
framePtr->menuName, NULL);
|
803 |
ckfree(framePtr->menuName);
|
804 |
framePtr->menuName = NULL;
|
805 |
}
|
806 |
if (framePtr->tkwin != NULL) {
|
807 |
|
808 |
/*
|
809 |
* If this window is a container, then this event could be
|
810 |
* coming from the embedded application, in which case
|
811 |
* Tk_DestroyWindow hasn't been called yet. When Tk_DestroyWindow
|
812 |
* is called later, then another destroy event will be generated.
|
813 |
* We need to be sure we ignore the second event, since the frame
|
814 |
* could be gone by then. To do so, delete the event handler
|
815 |
* explicitly (normally it's done implicitly by Tk_DestroyWindow).
|
816 |
*/
|
817 |
|
818 |
Tk_DeleteEventHandler(framePtr->tkwin,
|
819 |
ExposureMask|StructureNotifyMask|FocusChangeMask,
|
820 |
FrameEventProc, (ClientData) framePtr);
|
821 |
framePtr->tkwin = NULL;
|
822 |
Tcl_DeleteCommandFromToken(framePtr->interp, framePtr->widgetCmd);
|
823 |
}
|
824 |
if (framePtr->flags & REDRAW_PENDING) {
|
825 |
Tcl_CancelIdleCall(DisplayFrame, (ClientData) framePtr);
|
826 |
}
|
827 |
Tcl_CancelIdleCall(MapFrame, (ClientData) framePtr);
|
828 |
Tcl_EventuallyFree((ClientData) framePtr, DestroyFrame);
|
829 |
} else if (eventPtr->type == FocusIn) {
|
830 |
if (eventPtr->xfocus.detail != NotifyInferior) {
|
831 |
framePtr->flags |= GOT_FOCUS;
|
832 |
if (framePtr->highlightWidth > 0) {
|
833 |
goto redraw;
|
834 |
}
|
835 |
}
|
836 |
} else if (eventPtr->type == FocusOut) {
|
837 |
if (eventPtr->xfocus.detail != NotifyInferior) {
|
838 |
framePtr->flags &= ~GOT_FOCUS;
|
839 |
if (framePtr->highlightWidth > 0) {
|
840 |
goto redraw;
|
841 |
}
|
842 |
}
|
843 |
} else if (eventPtr->type == ActivateNotify) {
|
844 |
TkpSetMainMenubar(framePtr->interp, framePtr->tkwin,
|
845 |
framePtr->menuName);
|
846 |
}
|
847 |
return;
|
848 |
|
849 |
redraw:
|
850 |
if ((framePtr->tkwin != NULL) && !(framePtr->flags & REDRAW_PENDING)) {
|
851 |
Tcl_DoWhenIdle(DisplayFrame, (ClientData) framePtr);
|
852 |
framePtr->flags |= REDRAW_PENDING;
|
853 |
}
|
854 |
}
|
855 |
|
856 |
/*
|
857 |
*----------------------------------------------------------------------
|
858 |
*
|
859 |
* FrameCmdDeletedProc --
|
860 |
*
|
861 |
* This procedure is invoked when a widget command is deleted. If
|
862 |
* the widget isn't already in the process of being destroyed,
|
863 |
* this command destroys it.
|
864 |
*
|
865 |
* Results:
|
866 |
* None.
|
867 |
*
|
868 |
* Side effects:
|
869 |
* The widget is destroyed.
|
870 |
*
|
871 |
*----------------------------------------------------------------------
|
872 |
*/
|
873 |
|
874 |
static void
|
875 |
FrameCmdDeletedProc(clientData)
|
876 |
ClientData clientData; /* Pointer to widget record for widget. */
|
877 |
{
|
878 |
Frame *framePtr = (Frame *) clientData;
|
879 |
Tk_Window tkwin = framePtr->tkwin;
|
880 |
|
881 |
if (framePtr->menuName != NULL) {
|
882 |
TkSetWindowMenuBar(framePtr->interp, framePtr->tkwin,
|
883 |
framePtr->menuName, NULL);
|
884 |
ckfree(framePtr->menuName);
|
885 |
framePtr->menuName = NULL;
|
886 |
}
|
887 |
|
888 |
/*
|
889 |
* This procedure could be invoked either because the window was
|
890 |
* destroyed and the command was then deleted (in which case tkwin
|
891 |
* is NULL) or because the command was deleted, and then this procedure
|
892 |
* destroys the widget.
|
893 |
*/
|
894 |
|
895 |
if (tkwin != NULL) {
|
896 |
framePtr->tkwin = NULL;
|
897 |
Tk_DestroyWindow(tkwin);
|
898 |
}
|
899 |
}
|
900 |
|
901 |
/*
|
902 |
*----------------------------------------------------------------------
|
903 |
*
|
904 |
* MapFrame --
|
905 |
*
|
906 |
* This procedure is invoked as a when-idle handler to map a
|
907 |
* newly-created top-level frame.
|
908 |
*
|
909 |
* Results:
|
910 |
* None.
|
911 |
*
|
912 |
* Side effects:
|
913 |
* The frame given by the clientData argument is mapped.
|
914 |
*
|
915 |
*----------------------------------------------------------------------
|
916 |
*/
|
917 |
|
918 |
static void
|
919 |
MapFrame(clientData)
|
920 |
ClientData clientData; /* Pointer to frame structure. */
|
921 |
{
|
922 |
Frame *framePtr = (Frame *) clientData;
|
923 |
|
924 |
/*
|
925 |
* Wait for all other background events to be processed before
|
926 |
* mapping window. This ensures that the window's correct geometry
|
927 |
* will have been determined before it is first mapped, so that the
|
928 |
* window manager doesn't get a false idea of its desired geometry.
|
929 |
*/
|
930 |
|
931 |
Tcl_Preserve((ClientData) framePtr);
|
932 |
while (1) {
|
933 |
if (Tcl_DoOneEvent(TCL_IDLE_EVENTS) == 0) {
|
934 |
break;
|
935 |
}
|
936 |
|
937 |
/*
|
938 |
* After each event, make sure that the window still exists
|
939 |
* and quit if the window has been destroyed.
|
940 |
*/
|
941 |
|
942 |
if (framePtr->tkwin == NULL) {
|
943 |
Tcl_Release((ClientData) framePtr);
|
944 |
return;
|
945 |
}
|
946 |
}
|
947 |
Tk_MapWindow(framePtr->tkwin);
|
948 |
Tcl_Release((ClientData) framePtr);
|
949 |
}
|
950 |
|
951 |
/*
|
952 |
*--------------------------------------------------------------
|
953 |
*
|
954 |
* TkInstallFrameMenu --
|
955 |
*
|
956 |
* This function is needed when a Windows HWND is created
|
957 |
* and a menubar has been set to the window with a system
|
958 |
* menu. It notifies the menu package so that the system
|
959 |
* menu can be rebuilt.
|
960 |
*
|
961 |
* Results:
|
962 |
* None.
|
963 |
*
|
964 |
* Side effects:
|
965 |
* The system menu (if any) is created for the menubar
|
966 |
* associated with this frame.
|
967 |
*
|
968 |
*--------------------------------------------------------------
|
969 |
*/
|
970 |
|
971 |
void
|
972 |
TkInstallFrameMenu(tkwin)
|
973 |
Tk_Window tkwin; /* The window that was just created. */
|
974 |
{
|
975 |
TkWindow *winPtr = (TkWindow *) tkwin;
|
976 |
|
977 |
if (winPtr->mainPtr != NULL) {
|
978 |
Frame *framePtr;
|
979 |
framePtr = (Frame*) winPtr->instanceData;
|
980 |
if (framePtr == NULL) {
|
981 |
panic("TkInstallFrameMenu couldn't get frame pointer");
|
982 |
}
|
983 |
TkpMenuNotifyToplevelCreate(winPtr->mainPtr->interp,
|
984 |
framePtr->menuName);
|
985 |
}
|
986 |
}
|
987 |
|
988 |
/* End of tkframe.c */
|