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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: cursor.cpp | |
3 | // Purpose: wxCursor class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "cursor.h" | |
22 | #endif | |
23 | ||
24 | // For compilers that support precompilation, includes "wx.h". | |
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
28 | #pragma hdrstop | |
29 | #endif | |
30 | ||
31 | #ifndef WX_PRECOMP | |
32 | #include "wx/list.h" | |
33 | #include "wx/utils.h" | |
34 | #include "wx/app.h" | |
35 | #include "wx/bitmap.h" | |
36 | #include "wx/icon.h" | |
37 | #include "wx/cursor.h" | |
38 | #endif | |
39 | ||
40 | #include "wx/module.h" | |
41 | #include "wx/image.h" | |
42 | #include "wx/msw/private.h" | |
43 | #ifndef __WXMICROWIN__ | |
44 | #include "wx/msw/dib.h" | |
45 | #endif | |
46 | ||
47 | #if wxUSE_RESOURCE_LOADING_IN_MSW | |
48 | #include "wx/msw/curico.h" | |
49 | #include "wx/msw/curicop.h" | |
50 | #endif | |
51 | ||
52 | // ---------------------------------------------------------------------------- | |
53 | // wxWin macros | |
54 | // ---------------------------------------------------------------------------- | |
55 | ||
56 | IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject) | |
57 | ||
58 | // ---------------------------------------------------------------------------- | |
59 | // globals | |
60 | // ---------------------------------------------------------------------------- | |
61 | ||
62 | // Current cursor, in order to hang on to cursor handle when setting the cursor | |
63 | // globally | |
64 | static wxCursor *gs_globalCursor = NULL; | |
65 | ||
66 | // ---------------------------------------------------------------------------- | |
67 | // private classes | |
68 | // ---------------------------------------------------------------------------- | |
69 | ||
70 | class wxCursorModule : public wxModule | |
71 | { | |
72 | public: | |
73 | virtual bool OnInit() | |
74 | { | |
75 | gs_globalCursor = new wxCursor; | |
76 | ||
77 | return TRUE; | |
78 | } | |
79 | ||
80 | virtual void OnExit() | |
81 | { | |
82 | delete gs_globalCursor; | |
83 | gs_globalCursor = (wxCursor *)NULL; | |
84 | } | |
85 | }; | |
86 | ||
87 | // ============================================================================ | |
88 | // implementation | |
89 | // ============================================================================ | |
90 | ||
91 | // ---------------------------------------------------------------------------- | |
92 | // wxCursorRefData | |
93 | // ---------------------------------------------------------------------------- | |
94 | ||
95 | wxCursorRefData::wxCursorRefData() | |
96 | { | |
97 | m_width = 32; | |
98 | m_height = 32; | |
99 | ||
100 | m_destroyCursor = TRUE; | |
101 | } | |
102 | ||
103 | void wxCursorRefData::Free() | |
104 | { | |
105 | if ( m_hCursor ) | |
106 | { | |
107 | #ifndef __WXMICROWIN__ | |
108 | if ( m_destroyCursor ) | |
109 | ::DestroyCursor((HCURSOR)m_hCursor); | |
110 | #endif | |
111 | ||
112 | m_hCursor = 0; | |
113 | } | |
114 | } | |
115 | ||
116 | // ---------------------------------------------------------------------------- | |
117 | // Cursors | |
118 | // ---------------------------------------------------------------------------- | |
119 | ||
120 | wxCursor::wxCursor() | |
121 | { | |
122 | } | |
123 | ||
124 | wxCursor::wxCursor( const wxImage & image ) | |
125 | { | |
126 | //image has to be 32x32 | |
127 | wxImage image32 = image.Scale(32,32); | |
128 | unsigned char * rgbBits = image32.GetData(); | |
129 | int w = image32.GetWidth() ; | |
130 | int h = image32.GetHeight() ; | |
131 | bool bHasMask = image32.HasMask() ; | |
132 | int imagebitcount = (w*h)/8; | |
133 | ||
134 | unsigned char r, g, b ; | |
135 | unsigned char * bits = new unsigned char [imagebitcount]; | |
136 | unsigned char * maskBits = new unsigned char [imagebitcount]; | |
137 | ||
138 | int i,j, i8; unsigned char c, cMask; | |
139 | for (i=0; i<imagebitcount; i++) | |
140 | { | |
141 | bits[i] = 0; | |
142 | i8 = i * 8; | |
143 | //unlike gtk, the pixels go in the opposite order in the bytes | |
144 | cMask = 128; | |
145 | for (j=0; j<8; j++) | |
146 | { | |
147 | // possible overflow if we do the summation first ? | |
148 | c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3 ; | |
149 | //if average value is > mid grey | |
150 | if (c>127) | |
151 | bits[i] = bits[i] | cMask ; | |
152 | cMask = cMask / 2 ; | |
153 | } | |
154 | } | |
155 | if (bHasMask) | |
156 | { | |
157 | r = image32.GetMaskRed() ; | |
158 | g = image32.GetMaskGreen() ; | |
159 | b = image32.GetMaskBlue() ; | |
160 | ||
161 | for (i=0; i<imagebitcount; i++) | |
162 | { | |
163 | maskBits[i] = 0x0; | |
164 | i8 = i * 8; | |
165 | ||
166 | cMask = 128; | |
167 | for (j=0; j<8; j++) | |
168 | { | |
169 | if (rgbBits[(i8+j)*3] == r && rgbBits[(i8+j)*3+1] == g && rgbBits[(i8+j)*3+2] == b) | |
170 | maskBits[i] = maskBits[i] | cMask ; | |
171 | cMask = cMask / 2 ; | |
172 | } | |
173 | } | |
174 | } | |
175 | else | |
176 | { | |
177 | for (i=0; i<imagebitcount; i++) | |
178 | maskBits[i]= 0x0 ; | |
179 | } | |
180 | ||
181 | int hotSpotX = image32.GetOptionInt(wxCUR_HOTSPOT_X); | |
182 | int hotSpotY = image32.GetOptionInt(wxCUR_HOTSPOT_Y); | |
183 | if (hotSpotX < 0 || hotSpotX >= w) | |
184 | hotSpotX = 0; | |
185 | if (hotSpotY < 0 || hotSpotY >= h) | |
186 | hotSpotY = 0; | |
187 | ||
188 | wxCursorRefData *refData = new wxCursorRefData; | |
189 | m_refData = refData; | |
190 | refData->m_hCursor = (WXHCURSOR) CreateCursor ( wxGetInstance(), hotSpotX, hotSpotY, w, h, /*AND*/ maskBits, /*XOR*/ bits ); | |
191 | ||
192 | delete [] bits ; | |
193 | delete [] maskBits; | |
194 | ||
195 | } | |
196 | ||
197 | wxCursor::wxCursor(const char WXUNUSED(bits)[], | |
198 | int WXUNUSED(width), | |
199 | int WXUNUSED(height), | |
200 | int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), | |
201 | const char WXUNUSED(maskBits)[]) | |
202 | { | |
203 | } | |
204 | ||
205 | wxCursor::wxCursor(const wxString& cursor_file, | |
206 | long flags, | |
207 | int hotSpotX, int hotSpotY) | |
208 | { | |
209 | #ifdef __WXMICROWIN__ | |
210 | m_refData = NULL; | |
211 | #else | |
212 | wxCursorRefData *refData = new wxCursorRefData; | |
213 | m_refData = refData; | |
214 | ||
215 | if (flags == wxBITMAP_TYPE_CUR_RESOURCE) | |
216 | { | |
217 | #ifdef __WIN95__ | |
218 | refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, 0); | |
219 | #else | |
220 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file); | |
221 | #endif | |
222 | } | |
223 | else if (flags == wxBITMAP_TYPE_CUR) | |
224 | { | |
225 | #ifdef __WIN95__ | |
226 | refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE); | |
227 | #else | |
228 | #if wxUSE_RESOURCE_LOADING_IN_MSW | |
229 | refData->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &refData->m_width, &refData->m_height); | |
230 | #endif | |
231 | #endif | |
232 | } | |
233 | else if (flags == wxBITMAP_TYPE_ICO) | |
234 | { | |
235 | #if wxUSE_RESOURCE_LOADING_IN_MSW | |
236 | refData->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &refData->m_width, &refData->m_height); | |
237 | #endif | |
238 | } | |
239 | else if (flags == wxBITMAP_TYPE_BMP) | |
240 | { | |
241 | #if wxUSE_RESOURCE_LOADING_IN_MSW | |
242 | HBITMAP hBitmap = 0; | |
243 | HPALETTE hPalette = 0; | |
244 | bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0; | |
245 | if (!success) | |
246 | return; | |
247 | if (hPalette) | |
248 | DeleteObject(hPalette); | |
249 | POINT pnt; | |
250 | pnt.x = hotSpotX; | |
251 | pnt.y = hotSpotY; | |
252 | refData->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt); | |
253 | DeleteObject(hBitmap); | |
254 | #endif | |
255 | } | |
256 | ||
257 | #if WXWIN_COMPATIBILITY_2 | |
258 | refData->SetOk(); | |
259 | #endif // WXWIN_COMPATIBILITY_2 | |
260 | ||
261 | #endif | |
262 | } | |
263 | ||
264 | // Cursors by stock number | |
265 | wxCursor::wxCursor(int cursor_type) | |
266 | { | |
267 | #ifdef __WXMICROWIN__ | |
268 | m_refData = NULL; | |
269 | #else | |
270 | wxCursorRefData *refData = new wxCursorRefData; | |
271 | m_refData = refData; | |
272 | ||
273 | switch (cursor_type) | |
274 | { | |
275 | case wxCURSOR_ARROWWAIT: | |
276 | #ifndef __WIN16__ | |
277 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_APPSTARTING); | |
278 | break; | |
279 | #endif | |
280 | case wxCURSOR_WAIT: | |
281 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT); | |
282 | break; | |
283 | case wxCURSOR_IBEAM: | |
284 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM); | |
285 | break; | |
286 | case wxCURSOR_CROSS: | |
287 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS); | |
288 | break; | |
289 | case wxCURSOR_SIZENWSE: | |
290 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE); | |
291 | break; | |
292 | case wxCURSOR_SIZENESW: | |
293 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW); | |
294 | break; | |
295 | case wxCURSOR_SIZEWE: | |
296 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE); | |
297 | break; | |
298 | case wxCURSOR_SIZENS: | |
299 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS); | |
300 | break; | |
301 | case wxCURSOR_CHAR: | |
302 | { | |
303 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); | |
304 | break; | |
305 | } | |
306 | case wxCURSOR_HAND: | |
307 | { | |
308 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND")); | |
309 | break; | |
310 | } | |
311 | case wxCURSOR_BULLSEYE: | |
312 | { | |
313 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE")); | |
314 | break; | |
315 | } | |
316 | case wxCURSOR_PENCIL: | |
317 | { | |
318 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL")); | |
319 | break; | |
320 | } | |
321 | case wxCURSOR_MAGNIFIER: | |
322 | { | |
323 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER")); | |
324 | break; | |
325 | } | |
326 | case wxCURSOR_NO_ENTRY: | |
327 | { | |
328 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY")); | |
329 | break; | |
330 | } | |
331 | case wxCURSOR_LEFT_BUTTON: | |
332 | { | |
333 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); | |
334 | break; | |
335 | } | |
336 | case wxCURSOR_RIGHT_BUTTON: | |
337 | { | |
338 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); | |
339 | break; | |
340 | } | |
341 | case wxCURSOR_MIDDLE_BUTTON: | |
342 | { | |
343 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); | |
344 | break; | |
345 | } | |
346 | case wxCURSOR_SIZING: | |
347 | { | |
348 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING")); | |
349 | break; | |
350 | } | |
351 | case wxCURSOR_WATCH: | |
352 | { | |
353 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH")); | |
354 | break; | |
355 | } | |
356 | case wxCURSOR_SPRAYCAN: | |
357 | { | |
358 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER")); | |
359 | break; | |
360 | } | |
361 | case wxCURSOR_PAINT_BRUSH: | |
362 | { | |
363 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH")); | |
364 | break; | |
365 | } | |
366 | case wxCURSOR_POINT_LEFT: | |
367 | { | |
368 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT")); | |
369 | break; | |
370 | } | |
371 | case wxCURSOR_POINT_RIGHT: | |
372 | { | |
373 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT")); | |
374 | break; | |
375 | } | |
376 | case wxCURSOR_QUESTION_ARROW: | |
377 | { | |
378 | // refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), wxT("wxCURSOR_QARROW"), IMAGE_CURSOR, 16, 16, LR_MONOCHROME); | |
379 | // refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW")); | |
380 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_HELP); | |
381 | break; | |
382 | } | |
383 | case wxCURSOR_BLANK: | |
384 | { | |
385 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK")); | |
386 | break; | |
387 | } | |
388 | case wxCURSOR_RIGHT_ARROW: | |
389 | { | |
390 | refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_RIGHT_ARROW")); | |
391 | break; | |
392 | } | |
393 | default: | |
394 | case wxCURSOR_ARROW: | |
395 | refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); | |
396 | break; | |
397 | } | |
398 | ||
399 | // no need to destroy the stock cursors | |
400 | // TODO: check this | |
401 | //m_refData->m_destroyCursor = FALSE; | |
402 | #endif | |
403 | } | |
404 | ||
405 | wxCursor::~wxCursor() | |
406 | { | |
407 | } | |
408 | ||
409 | // ---------------------------------------------------------------------------- | |
410 | // Global cursor setting | |
411 | // ---------------------------------------------------------------------------- | |
412 | ||
413 | const wxCursor *wxGetGlobalCursor() | |
414 | { | |
415 | return gs_globalCursor; | |
416 | } | |
417 | ||
418 | void wxSetCursor(const wxCursor& cursor) | |
419 | { | |
420 | if ( cursor.Ok() ) | |
421 | { | |
422 | #ifndef __WXMICROWIN__ | |
423 | ::SetCursor(GetHcursorOf(cursor)); | |
424 | #endif | |
425 | ||
426 | if ( gs_globalCursor ) | |
427 | *gs_globalCursor = cursor; | |
428 | } | |
429 | } | |
430 | ||
431 |