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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: gdicmn.cpp
3 // Purpose: Common GDI classes
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 #ifdef __GNUG__
13 #pragma implementation "gdicmn.h"
14 #endif
15
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
18
19 #ifdef __BORLANDC__
20 #pragma hdrstop
21 #endif
22
23
24 #include "wx/gdicmn.h"
25 #include "wx/brush.h"
26 #include "wx/pen.h"
27 #include "wx/bitmap.h"
28 #include "wx/icon.h"
29 #include "wx/cursor.h"
30 #include "wx/font.h"
31 #include "wx/palette.h"
32
33 #include "wx/log.h"
34 #include <string.h>
35
36 #ifdef __WXMSW__
37 #include <windows.h>
38 #endif
39
40 #if !USE_SHARED_LIBRARY
41 IMPLEMENT_CLASS(wxColourDatabase, wxList)
42 IMPLEMENT_DYNAMIC_CLASS(wxFontList, wxList)
43 IMPLEMENT_DYNAMIC_CLASS(wxPenList, wxList)
44 IMPLEMENT_DYNAMIC_CLASS(wxBrushList, wxList)
45 IMPLEMENT_DYNAMIC_CLASS(wxBitmapList, wxList)
46 IMPLEMENT_DYNAMIC_CLASS(wxResourceCache, wxList)
47 /*
48 IMPLEMENT_DYNAMIC_CLASS(wxRect, wxObject)
49 IMPLEMENT_DYNAMIC_CLASS(wxPoint, wxObject)
50 IMPLEMENT_DYNAMIC_CLASS(wxRealPoint, wxObject)
51 */
52 #endif
53
54 wxRect::wxRect()
55 {
56 x = 0; y = 0; width = 0; height = 0;
57 }
58
59 wxRect::wxRect(long xx, long yy, long w, long h)
60 {
61 x = xx; y = yy; width = w; height = h;
62 }
63
64 wxRect::wxRect(const wxPoint& topLeft, const wxPoint& bottomRight)
65 {
66 x = topLeft.x;
67 y = topLeft.y;
68 width = bottomRight.x - topLeft.x;
69 height = bottomRight.y - topLeft.y;
70
71 if (width < 0)
72 {
73 width = -width;
74 x -= width;
75 }
76
77 if (height < 0)
78 {
79 height = -height;
80 x -= height;
81 }
82 }
83
84 wxRect::wxRect(const wxPoint& point, const wxSize& size)
85 {
86 x = point.x; y = point.y;
87 width = size.x; height = size.y;
88 }
89
90 wxRect::wxRect(const wxRect& rect)
91 {
92 x = rect.x;
93 y = rect.y;
94 width = rect.width;
95 height = rect.height;
96 }
97
98 wxRect& wxRect::operator = (const wxRect& rect)
99 {
100 x = rect.x; y = rect.y; width = rect.width; height = rect.height;
101 return *this;
102 }
103
104 bool wxRect::operator == (const wxRect& rect)
105 {
106 return ((x == rect.x) &&
107 (y == rect.y) &&
108 (width == rect.width) &&
109 (height == rect.height));
110 }
111
112 bool wxRect::operator != (const wxRect& rect)
113 {
114 return ((x != rect.x) ||
115 (y != rect.y) ||
116 (width != rect.width) ||
117 (height != rect.height));
118 }
119
120 wxColourDatabase::wxColourDatabase (int type):
121 wxList (type)
122 {
123 }
124
125 wxColourDatabase::~wxColourDatabase ()
126 {
127 // Cleanup Colour allocated in Initialize()
128 wxNode *node = First ();
129 while (node)
130 {
131 wxColour *col = (wxColour *) node->Data ();
132 wxNode *next = node->Next ();
133 delete col;
134 node = next;
135 }
136 }
137
138 // Colour database stuff
139 void wxColourDatabase::Initialize ()
140 {
141 // Don't initialize for X: colours are found
142 // in FindColour below.
143 // Added: Not all
144
145 struct cdef {
146 char *name;
147 int r,g,b;
148 };
149 cdef cc;
150 static cdef table[]={
151
152 // #ifdef __WXMSW__
153 {"AQUAMARINE",112, 219, 147},
154 {"BLACK",0, 0, 0},
155 {"BLUE", 0, 0, 255},
156 {"BLUE VIOLET", 159, 95, 159},
157 {"BROWN", 165, 42, 42},
158 {"CADET BLUE", 95, 159, 159},
159 {"CORAL", 255, 127, 0},
160 {"CORNFLOWER BLUE", 66, 66, 111},
161 {"CYAN", 0, 255, 255},
162 {"DARK GREY", 47, 47, 47}, // ?
163
164 {"DARK GREEN", 47, 79, 47},
165 {"DARK OLIVE GREEN", 79, 79, 47},
166 {"DARK ORCHID", 153, 50, 204},
167 {"DARK SLATE BLUE", 107, 35, 142},
168 {"DARK SLATE GREY", 47, 79, 79},
169 {"DARK TURQUOISE", 112, 147, 219},
170 {"DIM GREY", 84, 84, 84},
171 {"FIREBRICK", 142, 35, 35},
172 {"FOREST GREEN", 35, 142, 35},
173 {"GOLD", 204, 127, 50},
174 {"GOLDENROD", 219, 219, 112},
175 {"GREY", 128, 128, 128},
176 {"GREEN", 0, 255, 0},
177 {"GREEN YELLOW", 147, 219, 112},
178 {"INDIAN RED", 79, 47, 47},
179 {"KHAKI", 159, 159, 95},
180 {"LIGHT BLUE", 191, 216, 216},
181 {"LIGHT GREY", 192, 192, 192},
182 {"LIGHT STEEL BLUE", 143, 143, 188},
183 {"LIME GREEN", 50, 204, 50},
184 {"LIGHT MAGENTA", 255, 0, 255},
185 {"MAGENTA", 255, 0, 255},
186 {"MAROON", 142, 35, 107},
187 {"MEDIUM AQUAMARINE", 50, 204, 153},
188 {"MEDIUM GREY", 100, 100, 100},
189 {"MEDIUM BLUE", 50, 50, 204},
190 {"MEDIUM FOREST GREEN", 107, 142, 35},
191 {"MEDIUM GOLDENROD", 234, 234, 173},
192 {"MEDIUM ORCHID", 147, 112, 219},
193 {"MEDIUM SEA GREEN", 66, 111, 66},
194 {"MEDIUM SLATE BLUE", 127, 0, 255},
195 {"MEDIUM SPRING GREEN", 127, 255, 0},
196 {"MEDIUM TURQUOISE", 112, 219, 219},
197 {"MEDIUM VIOLET RED", 219, 112, 147},
198 {"MIDNIGHT BLUE", 47, 47, 79},
199 {"NAVY", 35, 35, 142},
200 {"ORANGE", 204, 50, 50},
201 {"ORANGE RED", 255, 0, 127},
202 {"ORCHID", 219, 112, 219},
203 {"PALE GREEN", 143, 188, 143},
204 {"PINK", 188, 143, 234},
205 {"PLUM", 234, 173, 234},
206 {"PURPLE", 176, 0, 255},
207 {"RED", 255, 0, 0},
208 {"SALMON", 111, 66, 66},
209 {"SEA GREEN", 35, 142, 107},
210 {"SIENNA", 142, 107, 35},
211 {"SKY BLUE", 50, 153, 204},
212 {"SLATE BLUE", 0, 127, 255},
213 {"SPRING GREEN", 0, 255, 127},
214 {"STEEL BLUE", 35, 107, 142},
215 {"TAN", 219, 147, 112},
216 {"THISTLE", 216, 191, 216},
217 {"TURQUOISE", 173, 234, 234},
218 {"VIOLET", 79, 47, 79},
219 {"VIOLET RED", 204, 50, 153},
220 {"WHEAT", 216, 216, 191},
221 {"WHITE", 255, 255, 255},
222 {"YELLOW", 255, 255, 0},
223 {"YELLOW GREEN", 153, 204, 50},
224 // #endif
225
226 #if defined(__WXGTK__) || defined(__X__)
227 {"MEDIUM GOLDENROD", 234, 234, 173},
228 {"MEDIUM FOREST GREEN", 107, 142, 35},
229 {"LIGHT MAGENTA", 255, 0, 255},
230 {"MEDIUM GREY", 100, 100, 100},
231 #endif
232
233 {0,0,0,0}
234 };
235 int i;
236 for (i=0;cc=table[i],cc.name!=0;i++)
237 {
238 Append(cc.name,new wxColour(cc.r,cc.g,cc.b));
239 }
240
241 }
242
243 /*
244 * Changed by Ian Brown, July 1994.
245 *
246 * When running under X, the Colour Database starts off empty. The X server
247 * is queried for the colour first time after which it is entered into the
248 * database. This allows our client to use the server colour database which
249 * is hopefully gamma corrected for the display being used.
250 */
251
252 wxColour *wxColourDatabase::FindColour(const wxString& colour)
253 {
254 wxNode *node = Find((char *) (const char *)colour);
255 if (node)
256 return (wxColour *)node->Data();
257
258 #ifdef __WXMSW__
259 else return NULL;
260 #endif
261
262 // TODO for other implementations. This should really go into
263 // platform-specific directories.
264 #ifdef __WXSTUBS__
265 else return NULL;
266 #endif
267
268 #ifdef __WXGTK__
269 else {
270 wxColour *col = new wxColour( colour );
271
272 if (!(col->Ok())) {
273 delete col;
274 return NULL;
275 }
276 Append( colour, col );
277 return col;
278 }
279 #endif
280
281 #ifdef __X__
282 else {
283 XColor xcolour;
284
285 #ifdef __WXMOTIF__
286 Display *display = XtDisplay(wxTheApp->topLevel) ;
287 #endif
288 #ifdef __XVIEW__
289 Xv_Screen screen = xv_get(xview_server, SERVER_NTH_SCREEN, 0);
290 Xv_opaque root_window = xv_get(screen, XV_ROOT);
291 Display *display = (Display *)xv_get(root_window, XV_DISPLAY);
292 #endif
293
294 /* MATTHEW: [4] Use wxGetMainColormap */
295 if (!XParseColor(display, wxGetMainColormap(display), colour,&xcolour))
296 return NULL;
297
298 unsigned char r = (unsigned char)(xcolour.red >> 8);
299 unsigned char g = (unsigned char)(xcolour.green >> 8);
300 unsigned char b = (unsigned char)(xcolour.blue >> 8);
301
302 wxColour *col = new wxColour(r, g, b);
303 Append(colour, col);
304
305 return col;
306 }
307 #endif
308 }
309
310 wxString wxColourDatabase::FindName (const wxColour& colour) const
311 {
312 unsigned char red = colour.Red ();
313 unsigned char green = colour.Green ();
314 unsigned char blue = colour.Blue ();
315
316 for (wxNode * node = First (); node; node = node->Next ())
317 {
318 wxColour *col = (wxColour *) node->Data ();
319
320 if (col->Red () == red && col->Green () == green && col->Blue () == blue)
321 {
322 char *found = node->key.string;
323 if (found)
324 return wxString(found);
325 }
326 }
327 return wxString(""); // Not Found
328
329 }
330
331 void wxInitializeStockLists () {
332 wxTheBrushList = new wxBrushList;
333 wxThePenList = new wxPenList;
334 wxTheFontList = new wxFontList;
335 wxTheBitmapList = new wxBitmapList;
336 }
337
338 void wxInitializeStockObjects ()
339 {
340 #ifdef __WXMOTIF__
341 #endif
342 #ifdef __X__
343 wxFontPool = new XFontPool;
344 #endif
345
346 wxNORMAL_FONT = new wxFont (12, wxMODERN, wxNORMAL, wxNORMAL);
347 wxSMALL_FONT = new wxFont (10, wxSWISS, wxNORMAL, wxNORMAL);
348 wxITALIC_FONT = new wxFont (12, wxROMAN, wxITALIC, wxNORMAL);
349 wxSWISS_FONT = new wxFont (12, wxSWISS, wxNORMAL, wxNORMAL);
350
351 wxRED_PEN = new wxPen ("RED", 1, wxSOLID);
352 wxCYAN_PEN = new wxPen ("CYAN", 1, wxSOLID);
353 wxGREEN_PEN = new wxPen ("GREEN", 1, wxSOLID);
354 wxBLACK_PEN = new wxPen ("BLACK", 1, wxSOLID);
355 wxWHITE_PEN = new wxPen ("WHITE", 1, wxSOLID);
356 wxTRANSPARENT_PEN = new wxPen ("BLACK", 1, wxTRANSPARENT);
357 wxBLACK_DASHED_PEN = new wxPen ("BLACK", 1, wxSHORT_DASH);
358 wxGREY_PEN = new wxPen ("GREY", 1, wxSOLID);
359 wxMEDIUM_GREY_PEN = new wxPen ("MEDIUM GREY", 1, wxSOLID);
360 wxLIGHT_GREY_PEN = new wxPen ("LIGHT GREY", 1, wxSOLID);
361
362 wxBLUE_BRUSH = new wxBrush ("BLUE", wxSOLID);
363 wxGREEN_BRUSH = new wxBrush ("GREEN", wxSOLID);
364 wxWHITE_BRUSH = new wxBrush ("WHITE", wxSOLID);
365 wxBLACK_BRUSH = new wxBrush ("BLACK", wxSOLID);
366 wxTRANSPARENT_BRUSH = new wxBrush ("BLACK", wxTRANSPARENT);
367 wxCYAN_BRUSH = new wxBrush ("CYAN", wxSOLID);
368 wxRED_BRUSH = new wxBrush ("RED", wxSOLID);
369 wxGREY_BRUSH = new wxBrush ("GREY", wxSOLID);
370 wxMEDIUM_GREY_BRUSH = new wxBrush ("MEDIUM GREY", wxSOLID);
371 wxLIGHT_GREY_BRUSH = new wxBrush ("LIGHT GREY", wxSOLID);
372
373 wxBLACK = new wxColour ("BLACK");
374 wxWHITE = new wxColour ("WHITE");
375 wxRED = new wxColour ("RED");
376 wxBLUE = new wxColour ("BLUE");
377 wxGREEN = new wxColour ("GREEN");
378 wxCYAN = new wxColour ("CYAN");
379 wxLIGHT_GREY = new wxColour ("LIGHT GREY");
380
381 wxSTANDARD_CURSOR = new wxCursor (wxCURSOR_ARROW);
382 wxHOURGLASS_CURSOR = new wxCursor (wxCURSOR_WAIT);
383 wxCROSS_CURSOR = new wxCursor (wxCURSOR_CROSS);
384 }
385
386 void
387 wxDeleteStockObjects ()
388 {
389 wxDELETE(wxNORMAL_FONT);
390 wxDELETE(wxSMALL_FONT);
391 wxDELETE(wxITALIC_FONT);
392 wxDELETE(wxSWISS_FONT);
393
394 wxDELETE(wxRED_PEN);
395 wxDELETE(wxCYAN_PEN);
396 wxDELETE(wxGREEN_PEN);
397 wxDELETE(wxBLACK_PEN);
398 wxDELETE(wxWHITE_PEN);
399 wxDELETE(wxTRANSPARENT_PEN);
400 wxDELETE(wxBLACK_DASHED_PEN);
401 wxDELETE(wxGREY_PEN);
402 wxDELETE(wxMEDIUM_GREY_PEN);
403 wxDELETE(wxLIGHT_GREY_PEN);
404
405 wxDELETE(wxBLUE_BRUSH);
406 wxDELETE(wxGREEN_BRUSH);
407 wxDELETE(wxWHITE_BRUSH);
408 wxDELETE(wxBLACK_BRUSH);
409 wxDELETE(wxTRANSPARENT_BRUSH);
410 wxDELETE(wxCYAN_BRUSH);
411 wxDELETE(wxRED_BRUSH);
412 wxDELETE(wxGREY_BRUSH);
413 wxDELETE(wxMEDIUM_GREY_BRUSH);
414 wxDELETE(wxLIGHT_GREY_BRUSH);
415
416 wxDELETE(wxBLACK);
417 wxDELETE(wxWHITE);
418 wxDELETE(wxRED);
419 wxDELETE(wxBLUE);
420 wxDELETE(wxGREEN);
421 wxDELETE(wxCYAN);
422 wxDELETE(wxLIGHT_GREY);
423
424 wxDELETE(wxSTANDARD_CURSOR);
425 wxDELETE(wxHOURGLASS_CURSOR);
426 wxDELETE(wxCROSS_CURSOR);
427 }
428
429 void wxDeleteStockLists() {
430 wxDELETE(wxTheBrushList);
431 wxDELETE(wxThePenList);
432 wxDELETE(wxTheFontList);
433 wxDELETE(wxTheBitmapList);
434 }
435
436 wxBitmapList::wxBitmapList ()
437 {
438 }
439
440 wxBitmapList::~wxBitmapList ()
441 {
442 wxLogDebug("~wxBitmapList: count = %d", Number());
443
444 wxNode *node = First ();
445 while (node)
446 {
447 wxBitmap *bitmap = (wxBitmap *) node->Data ();
448 wxNode *next = node->Next ();
449 delete bitmap;
450 // bitmap->FreeResource(TRUE);
451 node = next;
452 }
453 }
454
455 // Pen and Brush lists
456 wxPenList::~wxPenList ()
457 {
458 wxNode *node = First ();
459 while (node)
460 {
461 wxPen *pen = (wxPen *) node->Data ();
462 wxNode *next = node->Next ();
463 delete pen;
464 // pen->FreeResource(TRUE);
465 node = next;
466 }
467 }
468
469 void wxPenList::AddPen (wxPen * pen)
470 {
471 Append (pen);
472 }
473
474 void wxPenList::RemovePen (wxPen * pen)
475 {
476 DeleteObject (pen);
477 }
478
479 wxPen *wxPenList::FindOrCreatePen (const wxColour& colour, int width, int style)
480 {
481 for (wxNode * node = First (); node; node = node->Next ())
482 {
483 wxPen *each_pen = (wxPen *) node->Data ();
484 if (each_pen && each_pen->GetVisible() &&
485 each_pen->GetWidth () == width &&
486 each_pen->GetStyle () == style &&
487 each_pen->GetColour ().Red () == colour.Red () &&
488 each_pen->GetColour ().Green () == colour.Green () &&
489 each_pen->GetColour ().Blue () == colour.Blue ())
490 return each_pen;
491 }
492 wxPen *pen = new wxPen (colour, width, style);
493
494 // Yes, we can return a pointer to this in a later FindOrCreatePen call,
495 // because we created it within FindOrCreatePen. Safeguards against
496 // returning a pointer to an automatic variable and hanging on to it
497 // (dangling pointer).
498 pen->SetVisible(TRUE);
499 return pen;
500 }
501
502 wxPen *wxPenList::FindOrCreatePen (const wxString& colour, int width, int style)
503 {
504 wxColour *the_colour = wxTheColourDatabase->FindColour (colour);
505 if (the_colour)
506 return FindOrCreatePen (*the_colour, width, style);
507 else
508 return NULL;
509 }
510
511 wxBrushList::~wxBrushList ()
512 {
513 wxNode *node = First ();
514 while (node)
515 {
516 wxBrush *brush = (wxBrush *) node->Data ();
517 wxNode *next = node->Next ();
518 delete brush;
519 node = next;
520 }
521 }
522
523 void wxBrushList::AddBrush (wxBrush * brush)
524 {
525 Append (brush);
526 }
527
528 wxBrush *wxBrushList::FindOrCreateBrush (const wxColour& colour, int style)
529 {
530 for (wxNode * node = First (); node; node = node->Next ())
531 {
532 wxBrush *each_brush = (wxBrush *) node->Data ();
533 if (each_brush && each_brush->GetVisible() &&
534 each_brush->GetStyle () == style &&
535 each_brush->GetColour ().Red () == colour.Red () &&
536 each_brush->GetColour ().Green () == colour.Green () &&
537 each_brush->GetColour ().Blue () == colour.Blue ())
538 return each_brush;
539 }
540 // Yes, we can return a pointer to this in a later FindOrCreateBrush call,
541 // because we created it within FindOrCreateBrush. Safeguards against
542 // returning a pointer to an automatic variable and hanging on to it
543 // (dangling pointer).
544 wxBrush *brush = new wxBrush (colour, style);
545 brush->SetVisible(TRUE);
546 return brush;
547 }
548
549 wxBrush *wxBrushList::FindOrCreateBrush (const wxString& colour, int style)
550 {
551 wxColour *the_colour = wxTheColourDatabase->FindColour (colour);
552 if (the_colour)
553 return FindOrCreateBrush (*the_colour, style);
554 else
555 return NULL;
556 }
557
558 void wxBrushList::RemoveBrush (wxBrush * brush)
559 {
560 DeleteObject (brush);
561 }
562
563 wxFontList::~wxFontList ()
564 {
565 #ifdef __WXMSW__
566 wxNode *node = First ();
567 while (node)
568 {
569 /*
570 wxFont *font = (wxFont *) node->Data ();
571 wxNode *next = node->Next ();
572 delete font;
573 node = next;
574 */
575 // New for 2.0: don't delete the font (it may be a member
576 // of a wxDC, for example)
577 wxFont *font = (wxFont *) node->Data ();
578 wxNode *next = node->Next ();
579
580 // Force the font to be deleted
581 font->FreeResource(TRUE);
582 node = next;
583 }
584 #endif
585 }
586
587 void wxFontList::AddFont (wxFont * font)
588 {
589 Append (font);
590 }
591
592 void wxFontList::RemoveFont (wxFont * font)
593 {
594 DeleteObject (font);
595 }
596
597 wxFont *wxFontList::
598 FindOrCreateFont (int PointSize, int FamilyOrFontId, int Style, int Weight, bool underline, const wxString& Face)
599 {
600 for (wxNode * node = First (); node; node = node->Next ())
601 {
602 wxFont *each_font = (wxFont *) node->Data ();
603 if (each_font && each_font->GetVisible() && each_font->Ok() &&
604 each_font->GetPointSize () == PointSize &&
605 each_font->GetStyle () == Style &&
606 each_font->GetWeight () == Weight &&
607 each_font->GetUnderlined () == underline &&
608 #if defined(__X__) || (defined(__WXMSW__) && USE_PORTABLE_FONTS_IN_MSW)
609 each_font->GetFontId () == FamilyOrFontId) /* New font system */
610 #else
611 each_font->GetFamily () == FamilyOrFontId &&
612 (!each_font->GetFaceName() || each_font->GetFaceName() == Face))
613 #endif
614 return each_font;
615 }
616 wxFont *font = new wxFont (PointSize, FamilyOrFontId, Style, Weight, underline, Face);
617 font->SetVisible(TRUE);
618 return font;
619 }
620
621 void wxBitmapList::AddBitmap(wxBitmap *bitmap)
622 { Append(bitmap); }
623 void wxBitmapList::RemoveBitmap(wxBitmap *bitmap)
624 { DeleteObject(bitmap); }
625
626 wxSize wxGetDisplaySize()
627 {
628 int x, y;
629 wxDisplaySize(& x, & y);
630 return wxSize(x, y);
631 }
632
633 wxResourceCache::wxResourceCache () : wxList() {
634 }
635
636 wxResourceCache::wxResourceCache (const unsigned int the_key_type) : wxList(the_key_type) {
637 }
638
639 wxResourceCache::~wxResourceCache () {
640 wxNode *node = First ();
641 while (node) {
642 wxGDIObject *item = (wxGDIObject *)node->Data();
643 if (item->IsKindOf(CLASSINFO(wxBrush))) {
644 wxBrush *brush = (wxBrush *)item;
645 delete brush;
646 }
647
648 if (item->IsKindOf(CLASSINFO(wxFont))) {
649 wxFont *font = (wxFont *)item;
650 delete font;
651 }
652
653 if (item->IsKindOf(CLASSINFO(wxBitmap))) {
654 wxBitmap *bitmap = (wxBitmap *)item;
655 delete bitmap;
656 }
657
658 if (item->IsKindOf(CLASSINFO(wxColour))) {
659 wxColour *colour = (wxColour *)item;
660 delete colour;
661 }
662
663 wxNode *next = node->Next ();
664 node = next;
665 }
666 }
667