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4bb6408c JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: cursor.cpp | |
3 | // Purpose: wxCursor class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
65571936 | 9 | // Licence: wxWindows licence |
4bb6408c JS |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
14f355c2 | 12 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
4bb6408c JS |
13 | #pragma implementation "cursor.h" |
14 | #endif | |
15 | ||
1248b41f MB |
16 | // For compilers that support precompilation, includes "wx.h". |
17 | #include "wx/wxprec.h" | |
18 | ||
4bb6408c | 19 | #include "wx/cursor.h" |
f97c9854 JS |
20 | #include "wx/app.h" |
21 | #include "wx/utils.h" | |
93e73c74 | 22 | #include "wx/list.h" |
d8d18184 | 23 | #include "wx/window.h" |
4daa4d66 CE |
24 | #if wxUSE_IMAGE |
25 | #include "wx/image.h" | |
26 | #endif | |
f97c9854 | 27 | |
338dd992 JJ |
28 | #ifdef __VMS__ |
29 | #pragma message disable nosimpint | |
30 | #endif | |
f97c9854 JS |
31 | #include <Xm/Xm.h> |
32 | #include <X11/cursorfont.h> | |
338dd992 JJ |
33 | #ifdef __VMS__ |
34 | #pragma message enable nosimpint | |
35 | #endif | |
f97c9854 JS |
36 | |
37 | #include "wx/motif/private.h" | |
4bb6408c | 38 | |
93e73c74 MB |
39 | // Cursor for one display, so we can choose the correct one for |
40 | // the current display. | |
41 | class wxXCursor | |
42 | { | |
43 | public: | |
44 | WXDisplay* m_display; | |
45 | WXCursor m_cursor; | |
46 | }; | |
47 | ||
48 | WX_DECLARE_LIST(wxXCursor, wxXCursorList); | |
49 | #include "wx/listimpl.cpp" | |
50 | WX_DEFINE_LIST(wxXCursorList); | |
51 | ||
52 | class WXDLLEXPORT wxCursorRefData: public wxObjectRefData | |
53 | { | |
54 | friend class WXDLLEXPORT wxCursor; | |
55 | public: | |
56 | wxCursorRefData(); | |
57 | ~wxCursorRefData(); | |
58 | ||
59 | wxXCursorList m_cursors; // wxXCursor objects, one per display | |
77ffb593 | 60 | wxStockCursor m_cursorId; // wxWidgets standard cursor id |
93e73c74 MB |
61 | }; |
62 | ||
63 | #define M_CURSORDATA ((wxCursorRefData *)m_refData) | |
64 | #define M_CURSORHANDLERDATA ((wxCursorRefData *)bitmap->m_refData) | |
65 | ||
66 | IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxObject) | |
4bb6408c JS |
67 | |
68 | wxCursorRefData::wxCursorRefData() | |
69 | { | |
f97c9854 | 70 | m_cursorId = wxCURSOR_NONE; |
4bb6408c JS |
71 | } |
72 | ||
73 | wxCursorRefData::~wxCursorRefData() | |
74 | { | |
ac32ba44 | 75 | wxXCursorList::compatibility_iterator node = m_cursors.GetFirst(); |
f97c9854 JS |
76 | while (node) |
77 | { | |
93e73c74 MB |
78 | wxXCursor* c = node->GetData(); |
79 | XFreeCursor((Display*) c->m_display, (Cursor) c->m_cursor); | |
f97c9854 | 80 | delete c; |
fd304d98 | 81 | node = node->GetNext(); |
f97c9854 | 82 | } |
4bb6408c JS |
83 | } |
84 | ||
4bb6408c JS |
85 | wxCursor::wxCursor() |
86 | { | |
87 | } | |
88 | ||
4daa4d66 CE |
89 | #if wxUSE_IMAGE |
90 | wxCursor::wxCursor(const wxImage & image) | |
91 | { | |
92 | unsigned char * rgbBits = image.GetData(); | |
93 | int w = image.GetWidth() ; | |
94 | int h = image.GetHeight(); | |
95 | bool bHasMask = image.HasMask(); | |
96 | int imagebitcount = (w*h)/8; | |
97 | ||
98 | unsigned char * bits = new unsigned char [imagebitcount]; | |
99 | unsigned char * maskBits = new unsigned char [imagebitcount]; | |
100 | ||
101 | int i, j, i8; unsigned char c, cMask; | |
102 | for (i=0; i<imagebitcount; i++) | |
103 | { | |
ffa3d6b8 | 104 | bits[i] = 0xff; |
4daa4d66 CE |
105 | i8 = i * 8; |
106 | ||
ffa3d6b8 | 107 | cMask = 0xfe; // 11111110 |
4daa4d66 CE |
108 | for (j=0; j<8; j++) |
109 | { | |
110 | // possible overflow if we do the summation first ? | |
111 | c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3; | |
112 | //if average value is > mid grey | |
113 | if (c>127) | |
ffa3d6b8 MB |
114 | bits[i] = bits[i] & cMask; |
115 | cMask = (cMask << 1) | 1; | |
4daa4d66 CE |
116 | } |
117 | } | |
118 | ||
4daa4d66 CE |
119 | if (bHasMask) |
120 | { | |
121 | unsigned char | |
122 | r = image.GetMaskRed(), | |
123 | g = image.GetMaskGreen(), | |
124 | b = image.GetMaskBlue(); | |
125 | ||
126 | for (i=0; i<imagebitcount; i++) | |
127 | { | |
128 | maskBits[i] = 0x0; | |
129 | i8 = i * 8; | |
130 | ||
ffa3d6b8 | 131 | cMask = 0x1; |
4daa4d66 CE |
132 | for (j=0; j<8; j++) |
133 | { | |
134 | if (rgbBits[(i8+j)*3] != r || rgbBits[(i8+j)*3+1] != g || rgbBits[(i8+j)*3+2] != b) | |
135 | maskBits[i] = maskBits[i] | cMask; | |
ffa3d6b8 | 136 | cMask = (cMask << 1); |
4daa4d66 CE |
137 | } |
138 | } | |
4daa4d66 CE |
139 | } |
140 | else // no mask | |
141 | { | |
142 | for (i=0; i<imagebitcount; i++) | |
143 | maskBits[i] = 0xFF; | |
4daa4d66 | 144 | } |
4daa4d66 | 145 | |
4daa4d66 CE |
146 | int hotSpotX; |
147 | int hotSpotY; | |
148 | ||
7e91413a MB |
149 | if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X)) |
150 | hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X); | |
4daa4d66 CE |
151 | else |
152 | hotSpotX = 0; | |
153 | ||
7e91413a MB |
154 | if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y)) |
155 | hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y); | |
4daa4d66 CE |
156 | else |
157 | hotSpotY = 0; | |
158 | ||
159 | if (hotSpotX < 0 || hotSpotX >= w) | |
160 | hotSpotX = 0; | |
161 | if (hotSpotY < 0 || hotSpotY >= h) | |
162 | hotSpotY = 0; | |
ffa3d6b8 MB |
163 | |
164 | Create( (const char*)bits, w, h, hotSpotX, hotSpotY, | |
165 | (const char*)maskBits ); | |
166 | ||
167 | delete[] bits; | |
168 | delete[] maskBits; | |
169 | } | |
170 | #endif | |
171 | ||
172 | void wxCursor::Create(const char bits[], int width, int height, | |
173 | int hotSpotX, int hotSpotY, const char maskBits[]) | |
174 | { | |
175 | if( !m_refData ) | |
176 | m_refData = new wxCursorRefData; | |
4daa4d66 CE |
177 | |
178 | Display *dpy = (Display*) wxGetDisplay(); | |
179 | int screen_num = DefaultScreen (dpy); | |
180 | ||
181 | Pixmap pixmap = XCreatePixmapFromBitmapData (dpy, | |
ffa3d6b8 MB |
182 | RootWindow (dpy, screen_num), |
183 | (char*) bits, width, height, | |
4daa4d66 CE |
184 | 1 , 0 , 1); |
185 | ||
186 | Pixmap mask_pixmap = None; | |
187 | if (maskBits != NULL) | |
188 | { | |
189 | mask_pixmap = XCreatePixmapFromBitmapData (dpy, | |
ffa3d6b8 MB |
190 | RootWindow (dpy, screen_num), |
191 | (char*) maskBits, width, height, | |
4daa4d66 CE |
192 | 1 , 0 , 1); |
193 | } | |
194 | ||
ffa3d6b8 | 195 | Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotSpotX, hotSpotY ); |
4daa4d66 CE |
196 | |
197 | XFreePixmap( dpy, pixmap ); | |
198 | if (mask_pixmap != None) | |
199 | { | |
200 | XFreePixmap( dpy, mask_pixmap ); | |
201 | } | |
4daa4d66 | 202 | } |
4daa4d66 | 203 | |
ffa3d6b8 MB |
204 | void wxCursor::Create(WXPixmap pixmap, WXPixmap mask_pixmap, |
205 | int hotSpotX, int hotSpotY) | |
4bb6408c | 206 | { |
ffa3d6b8 MB |
207 | if( !m_refData ) |
208 | m_refData = new wxCursorRefData; | |
4bb6408c | 209 | |
f97c9854 JS |
210 | Display *dpy = (Display*) wxGetDisplay(); |
211 | int screen_num = DefaultScreen (dpy); | |
4bb6408c | 212 | |
f97c9854 JS |
213 | XColor foreground_color; |
214 | XColor background_color; | |
215 | foreground_color.pixel = BlackPixel(dpy, screen_num); | |
216 | background_color.pixel = WhitePixel(dpy, screen_num); | |
217 | Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy); | |
218 | XQueryColor(dpy, cmap, &foreground_color); | |
219 | XQueryColor(dpy, cmap, &background_color); | |
220 | ||
221 | Cursor cursor = XCreatePixmapCursor (dpy, | |
ffa3d6b8 MB |
222 | (Pixmap)pixmap, |
223 | (Pixmap)mask_pixmap, | |
f97c9854 JS |
224 | &foreground_color, |
225 | &background_color, | |
226 | hotSpotX , | |
227 | hotSpotY); | |
228 | ||
f97c9854 | 229 | if (cursor) |
4bb6408c | 230 | { |
f97c9854 JS |
231 | wxXCursor *c = new wxXCursor; |
232 | ||
233 | c->m_cursor = (WXCursor) cursor; | |
234 | c->m_display = (WXDisplay*) dpy; | |
235 | M_CURSORDATA->m_cursors.Append(c); | |
4bb6408c | 236 | } |
f97c9854 JS |
237 | } |
238 | ||
ffa3d6b8 MB |
239 | wxCursor::wxCursor(const char bits[], int width, int height, |
240 | int hotSpotX, int hotSpotY, const char maskBits[]) | |
241 | { | |
242 | Create(bits, width, height, hotSpotX, hotSpotY, maskBits); | |
243 | } | |
244 | ||
f97c9854 JS |
245 | wxCursor::wxCursor(const wxString& name, long flags, int hotSpotX, int hotSpotY) |
246 | { | |
247 | // Must be an XBM file | |
248 | if (flags != wxBITMAP_TYPE_XBM) | |
249 | return; | |
250 | ||
251 | m_refData = new wxCursorRefData; | |
252 | ||
253 | int hotX = -1, hotY = -1; | |
254 | unsigned int w, h; | |
ffa3d6b8 | 255 | Pixmap pixmap = None, mask_pixmap = None; |
f97c9854 JS |
256 | |
257 | Display *dpy = (Display*) wxGetDisplay(); | |
258 | int screen_num = DefaultScreen (dpy); | |
259 | ||
ffa3d6b8 | 260 | int value = XReadBitmapFile (dpy, RootWindow (dpy, screen_num), |
d3a80c92 MB |
261 | wxConstCast(name.c_str(), char), |
262 | &w, &h, &pixmap, &hotX, &hotY); | |
f97c9854 | 263 | |
ffa3d6b8 | 264 | if (value == BitmapSuccess) |
4bb6408c | 265 | { |
f97c9854 JS |
266 | // TODO: how do we determine whether hotX, hotY were read correctly? |
267 | if (hotX < 0 || hotY < 0) | |
268 | { | |
269 | hotX = hotSpotX; | |
270 | hotY = hotSpotY; | |
271 | } | |
272 | if (hotX < 0 || hotY < 0) | |
273 | { | |
274 | hotX = 0; | |
275 | hotY = 0; | |
276 | } | |
277 | ||
ffa3d6b8 | 278 | Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotX, hotY ); |
f97c9854 JS |
279 | |
280 | XFreePixmap( dpy, pixmap ); | |
4bb6408c | 281 | } |
f97c9854 JS |
282 | } |
283 | ||
284 | // Cursors by stock number | |
285 | wxCursor::wxCursor(wxStockCursor id) | |
286 | { | |
287 | m_refData = new wxCursorRefData; | |
288 | M_CURSORDATA->m_cursorId = id; | |
f97c9854 JS |
289 | } |
290 | ||
291 | wxCursor::~wxCursor() | |
292 | { | |
293 | } | |
294 | ||
93e73c74 MB |
295 | bool wxCursor::Ok() const |
296 | { | |
297 | return m_refData != NULL; | |
298 | } | |
299 | ||
f97c9854 | 300 | // Motif-specific: create/get a cursor for the current display |
bc6e28d5 | 301 | WXCursor wxCursor::GetXCursor(WXDisplay* display) const |
f97c9854 JS |
302 | { |
303 | if (!M_CURSORDATA) | |
304 | return (WXCursor) 0; | |
ac32ba44 | 305 | wxXCursorList::compatibility_iterator node = M_CURSORDATA->m_cursors.GetFirst(); |
f97c9854 | 306 | while (node) |
4bb6408c | 307 | { |
93e73c74 | 308 | wxXCursor* c = node->GetData(); |
f97c9854 JS |
309 | if (c->m_display == display) |
310 | return c->m_cursor; | |
fd304d98 | 311 | node = node->GetNext(); |
4bb6408c | 312 | } |
f97c9854 JS |
313 | |
314 | // No cursor for this display, so let's see if we're an id-type cursor. | |
315 | ||
316 | if (M_CURSORDATA->m_cursorId != wxCURSOR_NONE) | |
4bb6408c | 317 | { |
f97c9854 JS |
318 | WXCursor cursor = MakeCursor(display, M_CURSORDATA->m_cursorId); |
319 | if (cursor) | |
320 | { | |
321 | wxXCursor* c = new wxXCursor; | |
322 | c->m_cursor = cursor; | |
323 | c->m_display = display; | |
324 | M_CURSORDATA->m_cursors.Append(c); | |
325 | return cursor; | |
326 | } | |
327 | else | |
328 | return (WXCursor) 0; | |
4bb6408c | 329 | } |
4bb6408c | 330 | |
f97c9854 JS |
331 | // Not an id-type cursor, so we don't know how to create it. |
332 | return (WXCursor) 0; | |
4bb6408c JS |
333 | } |
334 | ||
f97c9854 | 335 | // Make a cursor from standard id |
bc6e28d5 | 336 | WXCursor wxCursor::MakeCursor(WXDisplay* display, wxStockCursor id) const |
4bb6408c | 337 | { |
f97c9854 JS |
338 | Display* dpy = (Display*) display; |
339 | Cursor cursor = (Cursor) 0; | |
93e73c74 | 340 | int x_cur = -1; |
f97c9854 JS |
341 | |
342 | switch (id) | |
343 | { | |
93e73c74 MB |
344 | case wxCURSOR_WAIT: x_cur = XC_watch; break; |
345 | case wxCURSOR_CROSS: x_cur = XC_crosshair; break; | |
346 | case wxCURSOR_CHAR: return (WXCursor)cursor; break; | |
347 | case wxCURSOR_HAND: x_cur = XC_hand1; break; | |
348 | case wxCURSOR_BULLSEYE: x_cur = XC_target; break; | |
349 | case wxCURSOR_PENCIL: x_cur = XC_pencil; break; | |
350 | case wxCURSOR_MAGNIFIER: x_cur = XC_sizing; break; | |
351 | case wxCURSOR_IBEAM: x_cur = XC_xterm; break; | |
352 | case wxCURSOR_NO_ENTRY: x_cur = XC_pirate; break; | |
353 | case wxCURSOR_LEFT_BUTTON: x_cur = XC_leftbutton; break; | |
354 | case wxCURSOR_RIGHT_BUTTON: x_cur = XC_rightbutton; break; | |
355 | case wxCURSOR_MIDDLE_BUTTON: x_cur = XC_middlebutton; break; | |
356 | case wxCURSOR_QUESTION_ARROW: x_cur = XC_question_arrow; break; | |
357 | case wxCURSOR_SIZING: x_cur = XC_sizing; break; | |
358 | case wxCURSOR_WATCH: x_cur = XC_watch; break; | |
359 | case wxCURSOR_SPRAYCAN: x_cur = XC_spraycan; break; | |
360 | case wxCURSOR_PAINT_BRUSH: x_cur = XC_spraycan; break; | |
361 | case wxCURSOR_SIZENWSE: | |
362 | case wxCURSOR_SIZENESW: x_cur = XC_crosshair; break; | |
363 | case wxCURSOR_SIZEWE: x_cur = XC_sb_h_double_arrow; break; | |
364 | case wxCURSOR_SIZENS: x_cur = XC_sb_v_double_arrow; break; | |
365 | case wxCURSOR_POINT_LEFT: x_cur = XC_sb_left_arrow; break; | |
366 | case wxCURSOR_POINT_RIGHT: x_cur = XC_sb_right_arrow; break; | |
f97c9854 JS |
367 | // (JD Huggins) added more stock cursors for X |
368 | // X-only cursors BEGIN | |
93e73c74 MB |
369 | case wxCURSOR_CROSS_REVERSE: x_cur = XC_cross_reverse; break; |
370 | case wxCURSOR_DOUBLE_ARROW: x_cur = XC_double_arrow; break; | |
371 | case wxCURSOR_BASED_ARROW_UP: x_cur = XC_based_arrow_up; break; | |
372 | case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break; | |
373 | case wxCURSOR_BLANK: | |
374 | { | |
375 | GC gc; | |
376 | XGCValues gcv; | |
377 | Pixmap empty_pixmap; | |
378 | XColor blank_color; | |
379 | ||
380 | empty_pixmap = | |
381 | XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)), | |
382 | 16, 16, 1); | |
383 | gcv.function = GXxor; | |
384 | gc = XCreateGC (dpy, | |
385 | empty_pixmap, | |
386 | GCFunction, | |
387 | &gcv); | |
388 | XCopyArea (dpy, | |
f97c9854 JS |
389 | empty_pixmap, |
390 | empty_pixmap, | |
391 | gc, | |
392 | 0, 0, | |
393 | 16, 16, | |
394 | 0, 0); | |
93e73c74 MB |
395 | XFreeGC (dpy, gc); |
396 | cursor = XCreatePixmapCursor (dpy, | |
397 | empty_pixmap, | |
398 | empty_pixmap, | |
399 | &blank_color, | |
400 | &blank_color, | |
401 | 8, 8); | |
402 | ||
403 | break; | |
404 | } | |
405 | case wxCURSOR_ARROW: | |
406 | default: x_cur = XC_top_left_arrow; break; | |
f97c9854 | 407 | } |
93e73c74 MB |
408 | |
409 | if( x_cur == -1 ) | |
410 | return (WXCursor)cursor; | |
411 | ||
412 | cursor = XCreateFontCursor (dpy, x_cur); | |
f97c9854 | 413 | return (WXCursor) cursor; |
4bb6408c JS |
414 | } |
415 | ||
416 | // Global cursor setting | |
f9e02ac7 | 417 | void wxSetCursor(const wxCursor& WXUNUSED(cursor)) |
4bb6408c | 418 | { |
f97c9854 | 419 | // Nothing to do for Motif (no global cursor) |
4bb6408c JS |
420 | } |
421 | ||
422 | ||
707440dc JS |
423 | // ---------------------------------------------------------------------------- |
424 | // busy cursor stuff | |
425 | // ---------------------------------------------------------------------------- | |
426 | ||
427 | static int wxBusyCursorCount = 0; | |
428 | ||
429 | // Helper function | |
430 | static void | |
431 | wxXSetBusyCursor (wxWindow * win, wxCursor * cursor) | |
432 | { | |
433 | Display *display = (Display*) win->GetXDisplay(); | |
434 | ||
435 | Window xwin = (Window) win->GetXWindow(); | |
436 | if (!xwin) | |
437 | return; | |
438 | ||
439 | XSetWindowAttributes attrs; | |
440 | ||
441 | if (cursor) | |
442 | { | |
443 | attrs.cursor = (Cursor) cursor->GetXCursor(display); | |
444 | } | |
445 | else | |
446 | { | |
447 | // Restore old cursor | |
448 | if (win->GetCursor().Ok()) | |
449 | attrs.cursor = (Cursor) win->GetCursor().GetXCursor(display); | |
450 | else | |
451 | attrs.cursor = None; | |
452 | } | |
453 | if (xwin) | |
454 | XChangeWindowAttributes (display, xwin, CWCursor, &attrs); | |
455 | ||
456 | XFlush (display); | |
457 | ||
ac32ba44 | 458 | for(wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst (); node; |
fd304d98 | 459 | node = node->GetNext()) |
707440dc | 460 | { |
fd304d98 | 461 | wxWindow *child = node->GetData (); |
707440dc JS |
462 | wxXSetBusyCursor (child, cursor); |
463 | } | |
464 | } | |
465 | ||
466 | // Set the cursor to the busy cursor for all windows | |
467 | void wxBeginBusyCursor(wxCursor *cursor) | |
468 | { | |
469 | wxBusyCursorCount++; | |
470 | if (wxBusyCursorCount == 1) | |
471 | { | |
ac32ba44 | 472 | for(wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst (); node; |
fd304d98 | 473 | node = node->GetNext()) |
707440dc | 474 | { |
fd304d98 | 475 | wxWindow *win = node->GetData (); |
707440dc JS |
476 | wxXSetBusyCursor (win, cursor); |
477 | } | |
478 | } | |
479 | } | |
480 | ||
481 | // Restore cursor to normal | |
482 | void wxEndBusyCursor() | |
483 | { | |
484 | if (wxBusyCursorCount == 0) | |
485 | return; | |
486 | ||
487 | wxBusyCursorCount--; | |
488 | if (wxBusyCursorCount == 0) | |
489 | { | |
ac32ba44 | 490 | for(wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst (); node; |
fd304d98 | 491 | node = node->GetNext()) |
707440dc | 492 | { |
fd304d98 | 493 | wxWindow *win = node->GetData (); |
707440dc JS |
494 | wxXSetBusyCursor (win, NULL); |
495 | } | |
496 | } | |
497 | } | |
498 | ||
499 | // TRUE if we're between the above two calls | |
500 | bool wxIsBusy() | |
501 | { | |
502 | return (wxBusyCursorCount > 0); | |
503 | } |