|
428
|
1 /* Balloon Help
|
|
|
2 Copyright (c) 1997 Douglas Keller
|
|
|
3
|
|
|
4 This file is part of XEmacs.
|
|
|
5
|
|
|
6 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
7 under the terms of the GNU General Public License as published by the
|
|
|
8 Free Software Foundation; either version 2, or (at your option) any
|
|
|
9 later version.
|
|
|
10
|
|
|
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
14 for more details.
|
|
|
15
|
|
|
16 You should have received a copy of the GNU General Public License
|
|
|
17 along with XEmacs; see the file COPYING. If not, write to
|
|
|
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
19 Boston, MA 02111-1307, USA. */
|
|
|
20
|
|
|
21 /* Synched up with: Not in FSF. */
|
|
|
22
|
|
771
|
23 /* !!#### Needs to be Mule-ized. */
|
|
|
24
|
|
428
|
25 /*
|
|
|
26 * Balloon Help
|
|
|
27 *
|
|
|
28 * Version: 1.337 (Sun Apr 13 04:52:10 1997)
|
|
|
29 *
|
|
|
30 * Written by Douglas Keller <dkeller@vnet.ibm.com>
|
|
|
31 *
|
|
|
32 *
|
|
|
33 */
|
|
|
34
|
|
|
35 #include <config.h>
|
|
|
36 #include <string.h>
|
|
|
37 #include <stdlib.h>
|
|
|
38 #include <stdio.h>
|
|
|
39 #include <assert.h>
|
|
|
40
|
|
|
41 #include <X11/Xlib.h>
|
|
|
42 #include <X11/Xutil.h>
|
|
|
43 #include <X11/extensions/shape.h>
|
|
|
44
|
|
2286
|
45 #include "compiler.h"
|
|
428
|
46 #include "xintrinsic.h"
|
|
|
47
|
|
|
48 #include "balloon_help.h"
|
|
|
49
|
|
442
|
50 #ifndef max
|
|
428
|
51 #define max(x,y) (x>y?x:y)
|
|
|
52 #endif
|
|
|
53
|
|
|
54 #undef bool
|
|
|
55 #define bool int
|
|
|
56
|
|
|
57 #define MARGIN_WIDTH 4
|
|
|
58 #define POINTER_OFFSET 8
|
|
|
59 #define BORDER_WIDTH 2
|
|
|
60 #define BORDER_WIDTH_HALF 1
|
|
|
61
|
|
|
62 #define CONE_HEIGHT 20
|
|
|
63 #define CONE_WIDTH 50
|
|
|
64
|
|
|
65 #define SHAPE_CONE_TOP (1<<0)
|
|
|
66 #define SHAPE_CONE_LEFT (1<<1)
|
|
|
67 #define SHAPE_CONE_TOP_LEFT (SHAPE_CONE_TOP | SHAPE_CONE_LEFT)
|
|
|
68 #define SHAPE_CONE_TOP_RIGHT (SHAPE_CONE_TOP)
|
|
|
69 #define SHAPE_CONE_BOTTOM_LEFT (SHAPE_CONE_LEFT)
|
|
|
70 #define SHAPE_CONE_BOTTOM_RIGHT (0)
|
|
|
71 #define SHAPE_CONE_FREE (-1)
|
|
|
72
|
|
|
73
|
|
|
74 static Display* b_dpy;
|
|
|
75
|
|
|
76 static XFontStruct* b_fontStruct;
|
|
|
77 static GC b_gc;
|
|
|
78
|
|
|
79 static GC b_shineGC;
|
|
|
80 static GC b_shadowGC;
|
|
|
81
|
|
|
82 static Window b_win;
|
|
|
83 static bool b_winMapped;
|
|
|
84
|
|
|
85 static Pixmap b_mask;
|
|
|
86 static int b_maskWidth, b_maskHeight;
|
|
|
87 static GC b_maskGC;
|
|
|
88
|
|
442
|
89 static const char* b_text;
|
|
428
|
90 static int b_width, b_height;
|
|
|
91
|
|
|
92 static XtIntervalId b_timer;
|
|
|
93 static unsigned long b_delay;
|
|
|
94
|
|
|
95 static int b_screenWidth, b_screenHeight;
|
|
|
96
|
|
|
97 static int b_lastShape;
|
|
|
98
|
|
|
99 /*============================================================================
|
|
|
100
|
|
|
101 ============================================================================*/
|
|
|
102
|
|
|
103 static GC
|
|
|
104 create_gc (Display* dpy, Window win, unsigned long fg, unsigned long bg,
|
|
|
105 XFontStruct* fontStruct)
|
|
|
106 {
|
|
|
107 XGCValues gcv;
|
|
|
108 unsigned long mask;
|
|
|
109
|
|
|
110 gcv.foreground = fg;
|
|
|
111 gcv.background = bg;
|
|
|
112 gcv.font = fontStruct->fid;
|
|
|
113 gcv.join_style = JoinMiter;
|
|
|
114 gcv.line_width = BORDER_WIDTH;
|
|
|
115
|
|
|
116 mask = GCFont | GCBackground | GCForeground | GCJoinStyle | GCLineWidth;
|
|
|
117
|
|
|
118 return XCreateGC (dpy, win, mask, &gcv);
|
|
|
119 }
|
|
|
120
|
|
|
121 static void
|
|
|
122 destroy_gc (Display* dpy, GC gc)
|
|
|
123 {
|
|
|
124 if (gc)
|
|
|
125 {
|
|
|
126 XFreeGC (dpy, gc);
|
|
|
127 }
|
|
|
128 }
|
|
|
129
|
|
|
130 /*============================================================================
|
|
|
131
|
|
|
132 ============================================================================*/
|
|
|
133
|
|
|
134 static Window
|
|
|
135 create_window (Display* dpy, unsigned long bg)
|
|
|
136 {
|
|
|
137 Window win;
|
|
|
138 XSetWindowAttributes attr;
|
|
|
139 unsigned long attr_mask;
|
|
|
140
|
|
|
141 attr_mask = CWOverrideRedirect | CWBackPixel | CWSaveUnder;
|
|
|
142 attr.override_redirect = True;
|
|
|
143 attr.background_pixel = bg;
|
|
|
144 attr.save_under = True;
|
|
|
145
|
|
|
146 win =
|
|
|
147 XCreateWindow (dpy,
|
|
|
148 DefaultRootWindow (dpy),
|
|
|
149 0, 0, 1, 1,
|
|
|
150 0,
|
|
|
151 CopyFromParent, InputOutput, CopyFromParent,
|
|
|
152 attr_mask, &attr);
|
|
|
153
|
|
|
154 XSelectInput (dpy, win,
|
|
|
155 SubstructureRedirectMask |
|
|
|
156 SubstructureNotifyMask |
|
|
|
157 ExposureMask |
|
|
|
158 EnterWindowMask |
|
|
|
159 LeaveWindowMask);
|
|
|
160 return win;
|
|
|
161 }
|
|
|
162
|
|
|
163 static void
|
|
|
164 destroy_window (Display* dpy, Window win)
|
|
|
165 {
|
|
|
166 if (win)
|
|
|
167 {
|
|
|
168 XDestroyWindow (dpy, win);
|
|
|
169 }
|
|
|
170 }
|
|
|
171
|
|
|
172 /*============================================================================
|
|
|
173
|
|
|
174 ============================================================================*/
|
|
|
175
|
|
|
176 static void
|
|
|
177 get_pointer_xy (Display* dpy, int* x_return, int* y_return)
|
|
|
178 {
|
|
|
179 int dummy;
|
|
|
180 unsigned int mask;
|
|
|
181 Window dummy_win;
|
|
|
182
|
|
|
183 XQueryPointer (dpy, RootWindow(dpy, DefaultScreen(dpy)), &dummy_win, &dummy_win,
|
|
|
184 x_return, y_return, &dummy, &dummy, &mask);
|
|
|
185 }
|
|
|
186
|
|
|
187 /*============================================================================
|
|
|
188
|
|
|
189 ============================================================================*/
|
|
|
190
|
|
|
191 static void
|
|
|
192 create_pixmap_mask (int width, int height)
|
|
|
193 {
|
|
|
194 b_maskWidth = width;
|
|
|
195 b_maskHeight = height;
|
|
|
196 b_mask = XCreatePixmap (b_dpy, b_win, width, height, 1);
|
|
|
197 }
|
|
|
198
|
|
|
199 static void
|
|
|
200 destroy_pixmap_mask(void)
|
|
|
201 {
|
|
|
202 XFreePixmap (b_dpy, b_mask);
|
|
|
203 }
|
|
|
204
|
|
|
205 static void
|
|
|
206 grow_pixmap_mask (int width, int height)
|
|
|
207 {
|
|
|
208 if (width > b_maskWidth || height > b_maskHeight)
|
|
|
209 {
|
|
|
210 destroy_pixmap_mask ();
|
|
|
211 create_pixmap_mask (width, height);
|
|
|
212 }
|
|
|
213 }
|
|
|
214
|
|
|
215 /*============================================================================
|
|
|
216
|
|
|
217 ============================================================================*/
|
|
|
218
|
|
|
219 static void
|
|
442
|
220 text_extent (XFontStruct* fontStruct, const char* text, int len,
|
|
428
|
221 int* width, int* height)
|
|
|
222 {
|
|
|
223 XCharStruct extent;
|
|
|
224 int dummy;
|
|
|
225
|
|
|
226 XTextExtents (fontStruct, text, len, &dummy, &dummy, &dummy, &extent);
|
|
|
227
|
|
|
228 *width = extent.width;
|
|
|
229 *height = fontStruct->ascent + fontStruct->descent;
|
|
|
230 }
|
|
|
231
|
|
|
232 static void
|
|
2286
|
233 get_text_size (Display* UNUSED (dpy), XFontStruct* fontStruct,
|
|
|
234 const char* text, int* max_width, int* max_height)
|
|
428
|
235 {
|
|
|
236 int width;
|
|
|
237 int height;
|
|
442
|
238 const char* start;
|
|
|
239 const char* end;
|
|
428
|
240
|
|
|
241 *max_width = *max_height = 0;
|
|
|
242
|
|
|
243 start = text;
|
|
|
244 while ((end = strchr(start, '\n')))
|
|
|
245 {
|
|
|
246 text_extent (fontStruct, start, end - start, &width, &height);
|
|
|
247 *max_width = max (width, *max_width);
|
|
|
248 *max_height += height;
|
|
|
249
|
|
|
250 start = end + 1;
|
|
|
251 }
|
|
|
252 text_extent (fontStruct, start, strlen (start), &width, &height);
|
|
|
253 *max_width = max (width, *max_width);
|
|
|
254 *max_height += height;
|
|
|
255
|
|
|
256 /* Min width */
|
|
|
257 *max_width = max (*max_width, CONE_WIDTH / 2 * 3);
|
|
|
258
|
|
|
259 }
|
|
|
260
|
|
|
261 static void
|
|
|
262 draw_text (Display* dpy, Window win, GC gc, XFontStruct* fontStruct,
|
|
442
|
263 int x, int y, const char* text)
|
|
428
|
264 {
|
|
442
|
265 const char* start;
|
|
|
266 const char* end;
|
|
428
|
267 int font_height;
|
|
|
268
|
|
|
269 y += fontStruct->ascent;
|
|
|
270
|
|
|
271 font_height = fontStruct->ascent + fontStruct->descent;
|
|
|
272
|
|
|
273 start = text;
|
|
|
274 while ((end = strchr(start, '\n')))
|
|
|
275 {
|
|
|
276 XDrawString (dpy, win, gc, x, y, start, end - start);
|
|
|
277
|
|
|
278 start = end + 1;
|
|
|
279 y += font_height;
|
|
|
280 }
|
|
|
281 XDrawString (dpy, win, gc, x, y, start, strlen (start));
|
|
|
282 }
|
|
|
283
|
|
|
284 /*============================================================================
|
|
|
285
|
|
|
286 ============================================================================*/
|
|
|
287
|
|
|
288 static int
|
|
|
289 get_shape (int last_shape, int x, int y, int width, int height,
|
|
|
290 int screen_width, int screen_height)
|
|
|
291 {
|
|
|
292 /* Can we use last_shape? */
|
|
|
293 if (((last_shape == SHAPE_CONE_TOP_LEFT) &&
|
|
|
294 (x + width < screen_width) && (y + height < screen_height)) ||
|
|
|
295 ((last_shape == SHAPE_CONE_TOP_RIGHT) &&
|
|
|
296 (x - width > 0) && (y + height < screen_height)) ||
|
|
|
297 ((last_shape == SHAPE_CONE_BOTTOM_LEFT) &&
|
|
|
298 (x + width < screen_width) && (y - height > 0)) ||
|
|
|
299 ((last_shape == SHAPE_CONE_BOTTOM_RIGHT) &&
|
|
|
300 (x - width > 0) && (y - height > 0)))
|
|
|
301 return last_shape;
|
|
|
302
|
|
|
303 /* Try to pick a shape that will not get changed,
|
|
|
304 e.g. if top left quadrant, top_left */
|
|
|
305 return (x < screen_width / 2) ?
|
|
|
306 (y < screen_height / 2 ? SHAPE_CONE_TOP_LEFT: SHAPE_CONE_BOTTOM_LEFT) :
|
|
|
307 (y < screen_height / 2 ? SHAPE_CONE_TOP_RIGHT: SHAPE_CONE_BOTTOM_RIGHT);
|
|
|
308 }
|
|
|
309
|
|
|
310 static void
|
|
2286
|
311 make_mask (int shape, int UNUSED (x), int UNUSED (y), int width, int height)
|
|
428
|
312 {
|
|
|
313 XPoint cone[ 3 ];
|
|
|
314
|
|
|
315 grow_pixmap_mask (width, height);
|
|
|
316
|
|
|
317 /* Clear mask */
|
|
|
318 XSetForeground (b_dpy, b_maskGC, 0);
|
|
|
319 XFillRectangle (b_dpy, b_mask, b_maskGC,
|
|
|
320 0, 0, width, height);
|
|
|
321
|
|
|
322 /* Enable text area */
|
|
|
323 XSetForeground (b_dpy, b_maskGC, 1);
|
|
|
324 XFillRectangle (b_dpy, b_mask, b_maskGC, 0,
|
|
|
325 shape & SHAPE_CONE_TOP ? CONE_HEIGHT : 0, width, height - CONE_HEIGHT);
|
|
|
326
|
|
|
327 /* Enable for cone area */
|
|
|
328 cone[0].x = (shape & SHAPE_CONE_LEFT) ? CONE_WIDTH / 2 : width - (CONE_WIDTH / 2);
|
|
|
329 cone[0].y = (shape & SHAPE_CONE_TOP) ? CONE_HEIGHT : height - CONE_HEIGHT;
|
|
|
330 cone[1].x = (shape & SHAPE_CONE_LEFT) ? 0 : width;
|
|
|
331 cone[1].y = (shape & SHAPE_CONE_TOP) ? 0 : height;
|
|
|
332 cone[2].x = (shape & SHAPE_CONE_LEFT) ? CONE_WIDTH : width - CONE_WIDTH;
|
|
|
333 cone[2].y = (shape & SHAPE_CONE_TOP) ? CONE_HEIGHT : height - CONE_HEIGHT;
|
|
|
334
|
|
|
335 XFillPolygon (b_dpy, b_mask, b_maskGC, cone, 3, Nonconvex, CoordModeOrigin);
|
|
|
336
|
|
|
337 }
|
|
|
338
|
|
|
339 static void
|
|
2286
|
340 show_help (XtPointer UNUSED (data), XtIntervalId* id)
|
|
428
|
341 {
|
|
|
342 int x, y;
|
|
|
343 int shape;
|
|
|
344 XPoint border[ 3 ];
|
|
|
345
|
|
|
346 if (id == NULL || ((id && b_timer) && b_text))
|
|
|
347 {
|
|
|
348 b_timer = None;
|
|
|
349
|
|
|
350 /* size */
|
|
|
351 get_text_size (b_dpy, b_fontStruct, b_text, &b_width, &b_height);
|
|
|
352 b_width += 2 * MARGIN_WIDTH + 2 * BORDER_WIDTH;
|
|
|
353 b_height += 2 * MARGIN_WIDTH + 2 * BORDER_WIDTH + CONE_HEIGHT;
|
|
|
354
|
|
|
355 /* origin */
|
|
|
356 get_pointer_xy (b_dpy, &x, &y);
|
|
|
357
|
|
|
358 /* guess at shape */
|
|
|
359 shape = get_shape(b_lastShape, x, y, b_width, b_height,
|
|
|
360 b_screenWidth, b_screenHeight);
|
|
|
361
|
|
|
362 x += (shape & SHAPE_CONE_LEFT) ? POINTER_OFFSET : -POINTER_OFFSET;
|
|
|
363 y += (shape & SHAPE_CONE_TOP) ? POINTER_OFFSET : -POINTER_OFFSET;
|
|
|
364
|
|
|
365 /* make sure it is still ok with offset */
|
|
|
366 shape = get_shape (shape, x, y, b_width, b_height, b_screenWidth, b_screenHeight);
|
|
|
367
|
|
|
368 b_lastShape = shape;
|
|
|
369
|
|
|
370 make_mask (shape, x, y, b_width, b_height);
|
|
|
371
|
|
|
372 XShapeCombineMask (b_dpy, b_win, ShapeBounding, 0, 0, b_mask, ShapeSet);
|
|
|
373
|
|
|
374 XMoveResizeWindow(b_dpy, b_win,
|
|
|
375 (shape & SHAPE_CONE_LEFT) ? x : x - b_width,
|
|
|
376 (shape & SHAPE_CONE_TOP) ? y : y - b_height,
|
|
|
377 b_width, b_height);
|
|
|
378
|
|
|
379 XClearWindow (b_dpy, b_win);
|
|
|
380
|
|
|
381 XMapRaised (b_dpy, b_win);
|
|
|
382 b_winMapped = True;
|
|
|
383
|
|
|
384 draw_text (b_dpy, b_win, b_gc, b_fontStruct,
|
|
|
385 BORDER_WIDTH + MARGIN_WIDTH,
|
|
|
386 BORDER_WIDTH + MARGIN_WIDTH + ((shape & SHAPE_CONE_TOP) ? CONE_HEIGHT : 0),
|
|
|
387 b_text);
|
|
|
388
|
|
|
389 /* 3d border */
|
|
|
390 /* shine- top left */
|
|
|
391 border[0].x = 0 + BORDER_WIDTH_HALF;
|
|
|
392 border[0].y = ((shape & SHAPE_CONE_TOP) ? b_height : b_height - CONE_HEIGHT) - BORDER_WIDTH_HALF;
|
|
|
393 border[1].x = 0 + BORDER_WIDTH_HALF;
|
|
|
394 border[1].y = ((shape & SHAPE_CONE_TOP) ? CONE_HEIGHT : 0) + BORDER_WIDTH_HALF;
|
|
|
395 border[2].x = b_width - BORDER_WIDTH_HALF;
|
|
|
396 border[2].y = border[1].y;
|
|
|
397 XDrawLines (b_dpy, b_win, b_shineGC, border, 3, CoordModeOrigin);
|
|
|
398
|
|
|
399 /* shadow- bottom right */
|
|
|
400 border[0].x = 0 + BORDER_WIDTH_HALF;
|
|
|
401 border[0].y = ((shape & SHAPE_CONE_TOP) ? b_height : b_height - CONE_HEIGHT) - BORDER_WIDTH_HALF;
|
|
|
402 border[1].x = b_width - BORDER_WIDTH_HALF;
|
|
|
403 border[1].y = border[0].y;
|
|
|
404 border[2].x = b_width - BORDER_WIDTH_HALF;
|
|
|
405 border[2].y = ((shape & SHAPE_CONE_TOP) ? CONE_HEIGHT : 0) + BORDER_WIDTH_HALF;
|
|
|
406 XDrawLines (b_dpy, b_win, b_shadowGC, border, 3, CoordModeOrigin);
|
|
|
407
|
|
|
408 /* cone */
|
|
|
409 if (SHAPE_CONE_TOP_LEFT == shape)
|
|
|
410 {
|
|
|
411 XClearArea (b_dpy, b_win,
|
|
|
412 CONE_WIDTH / 2 + BORDER_WIDTH,
|
|
|
413 CONE_HEIGHT,
|
|
|
414 CONE_WIDTH / 2 - BORDER_WIDTH,
|
|
|
415 BORDER_WIDTH, False);
|
|
|
416 XDrawLine (b_dpy, b_win, b_shadowGC,
|
|
|
417 0,
|
|
|
418 0,
|
|
|
419 CONE_WIDTH / 2 + BORDER_WIDTH_HALF,
|
|
|
420 CONE_HEIGHT);
|
|
|
421 XDrawLine (b_dpy, b_win, b_shineGC,
|
|
|
422 0,
|
|
|
423 0,
|
|
|
424 CONE_WIDTH - BORDER_WIDTH_HALF,
|
|
|
425 CONE_HEIGHT);
|
|
|
426 }
|
|
|
427 else if (SHAPE_CONE_TOP_RIGHT == shape)
|
|
|
428 {
|
|
|
429 XClearArea (b_dpy, b_win,
|
|
|
430 b_width - CONE_WIDTH + BORDER_WIDTH,
|
|
|
431 CONE_HEIGHT,
|
|
|
432 CONE_WIDTH / 2 - BORDER_WIDTH,
|
|
|
433 BORDER_WIDTH, False);
|
|
|
434 XDrawLine (b_dpy, b_win, b_shadowGC,
|
|
|
435 b_width,
|
|
|
436 0,
|
|
|
437 b_width - CONE_WIDTH / 2 - BORDER_WIDTH_HALF,
|
|
|
438 CONE_HEIGHT);
|
|
|
439 XDrawLine (b_dpy, b_win, b_shineGC,
|
|
|
440 b_width,
|
|
|
441 0,
|
|
|
442 b_width - CONE_WIDTH + BORDER_WIDTH_HALF,
|
|
|
443 CONE_HEIGHT);
|
|
|
444 }
|
|
|
445 else if (SHAPE_CONE_BOTTOM_LEFT == shape)
|
|
|
446 {
|
|
|
447 XClearArea (b_dpy, b_win,
|
|
|
448 CONE_WIDTH / 2 + BORDER_WIDTH,
|
|
|
449 b_height - CONE_HEIGHT - BORDER_WIDTH,
|
|
|
450 CONE_WIDTH / 2 - BORDER_WIDTH,
|
|
|
451 BORDER_WIDTH, False);
|
|
|
452 XDrawLine (b_dpy, b_win, b_shadowGC,
|
|
|
453 0,
|
|
|
454 b_height - 1,
|
|
|
455 CONE_WIDTH,
|
|
|
456 b_height - 1 - CONE_HEIGHT);
|
|
|
457 XDrawLine (b_dpy, b_win, b_shineGC,
|
|
|
458 0,
|
|
|
459 b_height - 1,
|
|
|
460 CONE_WIDTH / 2 + BORDER_WIDTH,
|
|
|
461 b_height - 1 - CONE_HEIGHT);
|
|
|
462 }
|
|
|
463 else if (SHAPE_CONE_BOTTOM_RIGHT == shape)
|
|
|
464 {
|
|
|
465 XClearArea (b_dpy, b_win,
|
|
|
466 b_width - 1 - CONE_WIDTH + BORDER_WIDTH,
|
|
|
467 b_height - CONE_HEIGHT - BORDER_WIDTH,
|
|
|
468 CONE_WIDTH / 2 - BORDER_WIDTH - 1,
|
|
|
469 BORDER_WIDTH, False);
|
|
|
470 XDrawLine (b_dpy, b_win, b_shadowGC,
|
|
|
471 b_width - 1,
|
|
|
472 b_height - 1,
|
|
|
473 b_width - 1 - CONE_WIDTH,
|
|
|
474 b_height - 1 - CONE_HEIGHT);
|
|
|
475 XDrawLine (b_dpy, b_win, b_shineGC,
|
|
|
476 b_width - 1,
|
|
|
477 b_height - 1,
|
|
|
478 b_width - 1 - CONE_WIDTH / 2 - BORDER_WIDTH,
|
|
|
479 b_height - 1 - CONE_HEIGHT);
|
|
|
480 }
|
|
|
481 }
|
|
|
482
|
|
|
483 }
|
|
|
484
|
|
|
485 /*============================================================================
|
|
|
486
|
|
|
487 ============================================================================*/
|
|
|
488
|
|
|
489 static void
|
|
|
490 balloon_help_destroy (void)
|
|
|
491 {
|
|
|
492 assert (b_dpy != NULL);
|
|
|
493 b_dpy = NULL;
|
|
|
494
|
|
|
495 destroy_window (b_dpy, b_win);
|
|
|
496 destroy_gc (b_dpy, b_gc);
|
|
|
497
|
|
|
498 destroy_gc (b_dpy, b_shineGC);
|
|
|
499 destroy_gc (b_dpy, b_shadowGC);
|
|
|
500
|
|
|
501 destroy_pixmap_mask ();
|
|
|
502 destroy_gc (b_dpy, b_maskGC);
|
|
|
503
|
|
|
504 if (b_timer) XtRemoveTimeOut (b_timer);
|
|
|
505 }
|
|
|
506
|
|
|
507 void
|
|
|
508 balloon_help_create (Display* dpy,
|
|
|
509 Pixel fg, Pixel bg, Pixel shine, Pixel shadow,
|
|
|
510 XFontStruct* font)
|
|
|
511 {
|
|
|
512 if (b_dpy) balloon_help_destroy ();
|
|
|
513
|
|
|
514 b_dpy = dpy;
|
|
|
515
|
|
|
516 b_fontStruct = font;
|
|
|
517
|
|
|
518 b_win = create_window (dpy, bg);
|
|
|
519 b_gc = create_gc (dpy, b_win, fg, bg, b_fontStruct);
|
|
|
520
|
|
|
521 b_shineGC = create_gc (dpy, b_win, shine, bg, b_fontStruct);
|
|
|
522 b_shadowGC = create_gc (dpy, b_win, shadow, bg, b_fontStruct);
|
|
|
523
|
|
|
524 create_pixmap_mask (1, 1);
|
|
|
525 b_maskGC = create_gc (dpy, b_mask, bg, fg, b_fontStruct);
|
|
|
526
|
|
|
527 b_winMapped = False;
|
|
|
528 b_timer = None;
|
|
|
529 b_delay = 500;
|
|
|
530
|
|
|
531 b_screenWidth = DisplayWidth (b_dpy, DefaultScreen(b_dpy));
|
|
|
532 b_screenHeight = DisplayHeight (b_dpy, DefaultScreen(b_dpy));
|
|
|
533
|
|
|
534 b_lastShape = SHAPE_CONE_FREE;
|
|
|
535 }
|
|
|
536
|
|
|
537 void
|
|
|
538 balloon_help_set_delay (unsigned long milliseconds)
|
|
|
539 {
|
|
|
540 b_delay = milliseconds;
|
|
|
541 }
|
|
|
542
|
|
|
543 void
|
|
442
|
544 balloon_help_show (const char* text)
|
|
428
|
545 {
|
|
|
546 assert (b_dpy != NULL);
|
|
|
547
|
|
|
548 /* We don't copy the text */
|
|
|
549 b_text = text;
|
|
|
550 b_lastShape = SHAPE_CONE_FREE;
|
|
|
551
|
|
|
552 if (b_winMapped)
|
|
|
553 {
|
|
|
554 /* If help is already being shown, don't delay just update */
|
|
|
555 show_help (NULL, NULL);
|
|
|
556 }
|
|
|
557 else
|
|
|
558 {
|
|
|
559 b_timer =
|
|
|
560 XtAppAddTimeOut (XtDisplayToApplicationContext(b_dpy),
|
|
|
561 b_delay, show_help, NULL);
|
|
|
562 }
|
|
|
563 }
|
|
|
564
|
|
|
565 void
|
|
|
566 balloon_help_hide (void)
|
|
|
567 {
|
|
|
568 assert (b_dpy != NULL);
|
|
|
569
|
|
|
570 b_text = NULL;
|
|
|
571 XUnmapWindow (b_dpy, b_win);
|
|
|
572 b_winMapped = False;
|
|
|
573 if (b_timer)
|
|
|
574 {
|
|
|
575 XtRemoveTimeOut (b_timer);
|
|
|
576 b_timer = None;
|
|
|
577 }
|
|
|
578 }
|
|
|
579
|
|
|
580 void
|
|
|
581 balloon_help_move_to_pointer (void)
|
|
|
582 {
|
|
|
583 assert (b_dpy != NULL);
|
|
|
584
|
|
|
585 if (b_winMapped)
|
|
|
586 {
|
|
|
587 int x, y;
|
|
|
588 int shape = b_lastShape;
|
|
|
589
|
|
|
590 get_pointer_xy (b_dpy, &x, &y);
|
|
|
591
|
|
|
592 x += (shape & SHAPE_CONE_LEFT) ? POINTER_OFFSET : -POINTER_OFFSET;
|
|
|
593 y += (shape & SHAPE_CONE_TOP) ? POINTER_OFFSET : -POINTER_OFFSET;
|
|
|
594
|
|
|
595 shape = get_shape (shape, x, y, b_width, b_height, b_screenWidth, b_screenHeight);
|
|
|
596
|
|
|
597 if (shape == b_lastShape)
|
|
|
598 {
|
|
|
599 XMoveWindow (b_dpy, b_win,
|
|
|
600 shape & SHAPE_CONE_LEFT ? x : x - b_width,
|
|
|
601 shape & SHAPE_CONE_TOP ? y : y - b_height);
|
|
|
602 }
|
|
|
603 else
|
|
|
604 {
|
|
|
605 /* text would be off screen, rebuild with new shape */
|
|
|
606 b_lastShape = SHAPE_CONE_FREE;
|
|
|
607 show_help (NULL, NULL);
|
|
|
608 }
|
|
|
609 }
|
|
|
610 }
|
