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Make wxRichTextRectArray usable by other parts of wxRTC
[wxWidgets.git] / src / motif / dcclient.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/motif/dcclient.cpp
3 // Purpose: wxClientDCImpl class
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // Copyright: (c) Julian Smart
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 /*
12 About pens, brushes, and the m_autoSetting flag:
13
14 Under X, pens and brushes control some of the same X drawing
15 parameters. Therefore, it is impossible to independently maintain
16 the current pen and the current brush. Also, some settings depend on
17 the current logical function. The m_currentFill, etc. instance
18 variables remember state across the brush and pen.
19
20 Since pens are used more than brushes, the m_autoSetting flag is used to
21 indicate that a brush was recently used, and SetPen must be called to
22 reinstall the current pen's parameters. If m_autoSetting includes 0x2, then the
23 pens color may need to be set based on XOR.
24
25 There is, unfortunately, some confusion between setting the current pen/brush
26 and actually installing the brush/pen parameters. Both functionalies are
27 perform by SetPen and SetBrush. C'est la vie.
28 */
29
30 // ============================================================================
31 // declarations
32 // ============================================================================
33
34 // ----------------------------------------------------------------------------
35 // headers
36 // ----------------------------------------------------------------------------
37
38 // For compilers that support precompilation, includes "wx.h".
39 #include "wx/wxprec.h"
40
41 #ifndef WX_PRECOMP
42 #include "wx/log.h"
43 #include "wx/app.h"
44 #include "wx/window.h"
45 #include "wx/dcmemory.h"
46 #include "wx/math.h"
47 #include "wx/image.h"
48 #include "wx/dcclient.h"
49 #endif
50
51 #ifdef __VMS__
52 #pragma message disable nosimpint
53 #endif
54 #include <Xm/Xm.h>
55 #ifdef __VMS__
56 #pragma message enable nosimpint
57 #endif
58
59 #include "wx/motif/private.h"
60 #include "wx/motif/dcclient.h"
61
62 #ifdef __EMX__
63 #include <float.h> // for M_PI
64 #endif // __EMX__
65
66 #include "bdiag.xbm"
67 #include "fdiag.xbm"
68 #include "cdiag.xbm"
69 #include "horiz.xbm"
70 #include "verti.xbm"
71 #include "cross.xbm"
72
73 static Pixmap bdiag, cdiag, fdiag, cross, horiz, verti;
74
75 // ----------------------------------------------------------------------------
76 // constants
77 // ----------------------------------------------------------------------------
78
79 // Fudge factor (VZ: what??)
80 #define WX_GC_CF 1
81
82 // ----------------------------------------------------------------------------
83 // macros
84 // ----------------------------------------------------------------------------
85
86 IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl)
87 IMPLEMENT_ABSTRACT_CLASS(wxPaintDCImpl, wxWindowDCImpl)
88 IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxMotifDCImpl)
89
90 #define IS_HATCH(s) ((s)>=wxFIRST_HATCH && (s)<=wxLAST_HATCH)
91
92 // FIXME: left over after removal of wxDC::GetOptimization()
93 #define GET_OPTIMIZATION false
94
95 // ----------------------------------------------------------------------------
96 // prototypes
97 // ----------------------------------------------------------------------------
98
99 static void XCopyRemote(Display *src_display, Display *dest_display,
100 Drawable src, Drawable dest,
101 GC destgc,
102 int srcx, int srcy,
103 unsigned int w, unsigned int h,
104 int destx, int desty,
105 bool more, XImage **cache);
106
107 // ============================================================================
108 // implementation
109 // ============================================================================
110
111 /*
112 * compare two doubles and return the larger rounded
113 * to the nearest int
114 */
115 static int roundmax(double a, double b)
116 {
117 return (int)((a > b ? a : b) + 0.5);
118 }
119
120 /*
121 * compare two doubles and return the smaller rounded
122 * to the nearest int
123 */
124 static int roundmin(double a, double b)
125 {
126 return (int)((a < b ? a : b) - 0.5);
127 }
128
129
130 // ----------------------------------------------------------------------------
131 // wxWindowDCImpl
132 // ----------------------------------------------------------------------------
133
134 void wxWindowDCImpl::Init()
135 {
136 m_gc = (WXGC) 0;
137 m_gcBacking = (WXGC) 0;
138 m_window = NULL;
139 m_backgroundPixel = -1;
140 m_currentPenWidth = 1;
141 m_currentPenJoin = -1;
142 m_currentPenDashCount = -1;
143 m_currentPenDash = NULL;
144 m_currentStyle = -1;
145 m_currentFill = -1;
146 m_colour = wxColourDisplay();
147 m_display = NULL;
148 m_pixmap = (WXPixmap) 0;
149 m_autoSetting = 0;
150 m_ok = false;
151 m_clipRegion = (WXRegion) 0;
152 }
153
154 wxWindowDCImpl::wxWindowDCImpl(wxDC *owner)
155 : wxMotifDCImpl(owner)
156 {
157 Init();
158 }
159
160 wxWindowDCImpl::wxWindowDCImpl(wxDC *owner, wxWindow *window)
161 : wxMotifDCImpl(owner)
162 {
163 wxASSERT_MSG( (window != NULL), "You must pass a valid wxWindow to wxWindowDCImpl/wxClientDCImpl/wxPaintDCImpl constructor." );
164
165 Init();
166
167 m_window = window;
168 m_font = window->GetFont();
169 m_ok = true;
170
171 m_display = window->GetXDisplay();
172 m_pixmap = window->GetXWindow();
173 Display* display = (Display*) m_display;
174
175 XSetWindowColormap (display, (Pixmap) m_pixmap, (Colormap) wxTheApp->GetMainColormap(m_display));
176
177 XGCValues gcvalues;
178 gcvalues.foreground = BlackPixel (display, DefaultScreen (display));
179 gcvalues.background = WhitePixel (display, DefaultScreen (display));
180 gcvalues.graphics_exposures = False;
181 gcvalues.subwindow_mode = IncludeInferiors;
182 gcvalues.line_width = 1;
183 #if !wxMOTIF_NEW_FONT_HANDLING
184 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
185 gcvalues.font = ((XFontStruct*)pFontStruct)->fid;
186 #endif
187 m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
188 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode
189 #if !wxMOTIF_NEW_FONT_HANDLING
190 | GCFont
191 #endif
192 ,
193 &gcvalues);
194
195 if (m_window->GetBackingPixmap())
196 {
197 m_gcBacking = (WXGC) XCreateGC (display, RootWindow (display,
198 DefaultScreen (display)),
199 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
200 &gcvalues);
201 }
202
203 m_backgroundPixel = gcvalues.background;
204
205 SetBackground(wxBrush(m_window->GetBackgroundColour(), wxSOLID));
206 }
207
208 wxWindowDCImpl::~wxWindowDCImpl()
209 {
210 if (m_gc)
211 XFreeGC ((Display*) m_display, (GC) m_gc);
212 m_gc = (WXGC) 0;
213
214 if (m_gcBacking)
215 XFreeGC ((Display*) m_display, (GC) m_gcBacking);
216 m_gcBacking = (WXGC) 0;
217
218 if (m_clipRegion)
219 XDestroyRegion ((Region) m_clipRegion);
220 m_clipRegion = (WXRegion) 0;
221 }
222
223 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
224 const wxColour & col, wxFloodFillStyle style);
225
226 bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y,
227 const wxColour& col, wxFloodFillStyle style)
228 {
229 return wxDoFloodFill(GetOwner(), x, y, col, style);
230 }
231
232 bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
233 {
234 // Generic (and therefore rather inefficient) method.
235 // Could be improved.
236 wxMemoryDC memdc;
237 wxBitmap bitmap(1, 1);
238 memdc.SelectObject(bitmap);
239 memdc.Blit(0, 0, 1, 1, GetOwner(), x1, y1);
240 memdc.SelectObject(wxNullBitmap);
241 wxImage image = bitmap.ConvertToImage();
242 col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
243 return true;
244 }
245
246 void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
247 {
248 wxCHECK_RET( IsOk(), "invalid dc" );
249
250 int x1d, y1d, x2d, y2d;
251
252 x1d = XLOG2DEV(x1);
253 y1d = YLOG2DEV(y1);
254 x2d = XLOG2DEV(x2);
255 y2d = YLOG2DEV(y2);
256
257 if (m_autoSetting)
258 SetPen (m_pen);
259
260 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, x1d, y1d, x2d, y2d);
261
262 if (m_window && m_window->GetBackingPixmap())
263 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
264 XLOG2DEV_2(x1), YLOG2DEV_2(y1),
265 XLOG2DEV_2(x2), YLOG2DEV_2(y2));
266
267 CalcBoundingBox(x1, y1);
268 CalcBoundingBox(x2, y2);
269 }
270
271 void wxWindowDCImpl::DoCrossHair( wxCoord x, wxCoord y )
272 {
273 wxCHECK_RET( IsOk(), "invalid dc" );
274
275 if (m_autoSetting)
276 SetPen (m_pen);
277
278 int xx = XLOG2DEV (x);
279 int yy = YLOG2DEV (y);
280 int ww, hh;
281 wxDisplaySize (&ww, &hh);
282 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, 0, yy,
283 ww, yy);
284 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xx, 0,
285 xx, hh);
286
287 if (m_window && m_window->GetBackingPixmap())
288 {
289 xx = XLOG2DEV_2 (x);
290 yy = YLOG2DEV_2 (y);
291 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
292 0, yy,
293 ww, yy);
294 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
295 xx, 0,
296 xx, hh);
297 }
298 }
299
300 void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc )
301 {
302 wxCHECK_RET( IsOk(), "invalid dc" );
303
304 int xx1 = XLOG2DEV (x1);
305 int yy1 = YLOG2DEV (y1);
306 int xx2 = XLOG2DEV (x2);
307 int yy2 = YLOG2DEV (y2);
308 int xxc = XLOG2DEV (xc);
309 int yyc = YLOG2DEV (yc);
310 int xxc_2 = XLOG2DEV_2 (xc);
311 int yyc_2 = YLOG2DEV_2 (yc);
312
313 wxCoord dx = xx1 - xxc;
314 wxCoord dy = yy1 - yyc;
315 double radius = sqrt ((double)(dx * dx + dy * dy));
316 wxCoord r = (wxCoord) radius;
317
318 double radius1, radius2;
319
320 if (xx1 == xx2 && yy1 == yy2)
321 {
322 radius1 = 0.0;
323 radius2 = 360.0;
324 }
325 else if (radius == 0.0)
326 radius1 = radius2 = 0.0;
327 else
328 {
329 if (xx1 - xxc == 0)
330 if (yy1 - yyc < 0)
331 radius1 = 90.0;
332 else
333 radius1 = -90.0;
334 else
335 radius1 = -atan2 ((double) (yy1 - yyc), (double) (xx1 - xxc)) * 360.0 / (2 * M_PI);
336
337 if (xx2 - xxc == 0)
338 if (yy2 - yyc < 0)
339 radius2 = 90.0;
340 else
341 radius2 = -90.0;
342 else
343 radius2 = -atan2 ((double) (yy2 - yyc), (double) (xx2 - xxc)) * 360.0 / (2 * M_PI);
344 }
345 radius1 *= 64.0;
346 radius2 *= 64.0;
347 int alpha1 = (int) radius1;
348 int alpha2 = (int) (radius2 - radius1);
349 while (alpha2 <= 0)
350 alpha2 += 360 * 64;
351 while (alpha2 > 360 * 64)
352 alpha2 -= 360 * 64;
353
354 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
355 {
356 SetBrush (m_brush);
357 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) (GC) m_gc,
358 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
359
360 if (m_window && m_window->GetBackingPixmap())
361 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
362 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
363
364 }
365
366 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
367 {
368 if (m_autoSetting)
369 SetPen (m_pen);
370 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
371 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
372
373 if (m_window && m_window->GetBackingPixmap())
374 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
375 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
376 }
377 CalcBoundingBox (x1, y1);
378 CalcBoundingBox (x2, y2);
379 }
380
381 void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
382 {
383 wxCHECK_RET( IsOk(), "invalid dc" );
384
385 int xd, yd, wd, hd;
386
387 xd = XLOG2DEV(x);
388 yd = YLOG2DEV(y);
389 wd = XLOG2DEVREL(width);
390 hd = YLOG2DEVREL(height);
391
392 if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
393 if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
394 int start = int(sa*64);
395 int end = int(ea*64);
396 if (start<0) start+=360*64;
397 if (end <0) end +=360*64;
398 if (end>start) end-=start;
399 else end+=360*64-start;
400
401 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
402 {
403 m_autoSetting = true; // must be reset
404
405 SetBrush (m_brush);
406 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start, end);
407
408 if (m_window && m_window->GetBackingPixmap())
409 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
410 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
411 }
412
413 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
414 {
415 if (m_autoSetting)
416 SetPen (m_pen);
417 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start,end);
418 if (m_window && m_window->GetBackingPixmap())
419 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
420 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
421 }
422 CalcBoundingBox (x, y);
423 CalcBoundingBox (x + width, y + height);
424 }
425
426 void wxWindowDCImpl::DoDrawPoint( wxCoord x, wxCoord y )
427 {
428 wxCHECK_RET( IsOk(), "invalid dc" );
429
430 if (m_pen.IsOk() && m_autoSetting)
431 SetPen (m_pen);
432
433 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y));
434 if (m_window && m_window->GetBackingPixmap())
435 XDrawPoint ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, XLOG2DEV_2 (x), YLOG2DEV_2 (y));
436
437 CalcBoundingBox (x, y);
438 }
439
440 void wxWindowDCImpl::DoDrawLines( int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset )
441 {
442 wxCHECK_RET( IsOk(), "invalid dc" );
443
444 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
445 {
446 if (m_autoSetting)
447 SetPen (m_pen);
448
449 XPoint *xpoints = new XPoint[n];
450 int i;
451
452 for (i = 0; i < n; i++)
453 {
454 xpoints[i].x = (short)XLOG2DEV (points[i].x + xoffset);
455 xpoints[i].y = (short)YLOG2DEV (points[i].y + yoffset);
456 }
457 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints, n, 0);
458
459 if (m_window && m_window->GetBackingPixmap())
460 {
461 for (i = 0; i < n; i++)
462 {
463 xpoints[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
464 xpoints[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
465 }
466 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints, n, 0);
467 }
468 delete[]xpoints;
469 }
470 }
471
472 void wxWindowDCImpl::DoDrawPolygon( int n, const wxPoint points[],
473 wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode fillStyle )
474 {
475 wxCHECK_RET( IsOk(), "invalid dc" );
476
477 XPoint *xpoints1 = new XPoint[n + 1];
478 XPoint *xpoints2 = new XPoint[n + 1];
479 int i;
480 for (i = 0; i < n; i++)
481 {
482 xpoints1[i].x = (short)XLOG2DEV (points[i].x + xoffset);
483 xpoints1[i].y = (short)YLOG2DEV (points[i].y + yoffset);
484 xpoints2[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
485 xpoints2[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
486 CalcBoundingBox (points[i].x + xoffset, points[i].y + yoffset);
487 }
488
489 // Close figure for XDrawLines (not needed for XFillPolygon)
490 xpoints1[i].x = xpoints1[0].x;
491 xpoints1[i].y = xpoints1[0].y;
492 xpoints2[i].x = xpoints2[0].x;
493 xpoints2[i].y = xpoints2[0].y;
494
495 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
496 {
497 SetBrush (m_brush);
498 XSetFillRule ((Display*) m_display, (GC) m_gc, fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
499 XFillPolygon ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n, Complex, 0);
500 XSetFillRule ((Display*) m_display, (GC) m_gc, EvenOddRule); // default mode
501 if (m_window && m_window->GetBackingPixmap())
502 {
503 XSetFillRule ((Display*) m_display,(GC) m_gcBacking,
504 fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
505 XFillPolygon ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n, Complex, 0);
506 XSetFillRule ((Display*) m_display,(GC) m_gcBacking, EvenOddRule); // default mode
507 }
508 }
509
510 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
511 {
512 if (m_autoSetting)
513 SetPen (m_pen);
514 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n + 1, 0);
515
516 if (m_window && m_window->GetBackingPixmap())
517 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n + 1, 0);
518 }
519
520 delete[]xpoints1;
521 delete[]xpoints2;
522 }
523
524 void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
525 {
526 wxCHECK_RET( IsOk(), "invalid dc" );
527
528 int xd, yd, wfd, hfd, wd, hd;
529
530 xd = XLOG2DEV(x);
531 yd = YLOG2DEV(y);
532 wfd = XLOG2DEVREL(width);
533 wd = wfd - WX_GC_CF;
534 hfd = YLOG2DEVREL(height);
535 hd = hfd - WX_GC_CF;
536
537 if (wfd == 0 || hfd == 0) return;
538 if (wd < 0) { wd = - wd; xd = xd - wd; }
539 if (hd < 0) { hd = - hd; yd = yd - hd; }
540
541 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
542 {
543 SetBrush (m_brush);
544 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wfd, hfd);
545
546 if (m_window && m_window->GetBackingPixmap())
547 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
548 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
549 wfd, hfd);
550 }
551
552 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
553 {
554 if (m_autoSetting)
555 SetPen (m_pen);
556 XDrawRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd);
557
558 if (m_window && m_window->GetBackingPixmap())
559 XDrawRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
560 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
561 wd, hd);
562 }
563 CalcBoundingBox (x, y);
564 CalcBoundingBox (x + width, y + height);
565 }
566
567 void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
568 {
569 wxCHECK_RET( IsOk(), "invalid dc" );
570
571 // If radius is negative, it's a proportion of the smaller dimension.
572
573 if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
574
575 int xd = XLOG2DEV (x);
576 int yd = YLOG2DEV (y);
577 int rd = XLOG2DEVREL ((long) radius);
578 int wd = XLOG2DEVREL (width) - WX_GC_CF;
579 int hd = YLOG2DEVREL (height) - WX_GC_CF;
580
581 int rw_d = rd * 2;
582 int rh_d = rw_d;
583
584 // If radius is zero use DrawRectangle() instead to avoid
585 // X drawing errors with small radii
586 if (rd == 0)
587 {
588 DoDrawRectangle( x, y, width, height );
589 return;
590 }
591
592 // Draw nothing if transformed w or h is 0
593 if (wd == 0 || hd == 0) return;
594
595 // CMB: adjust size if outline is drawn otherwise the result is
596 // 1 pixel too wide and high
597 if (m_pen.GetStyle() != wxTRANSPARENT)
598 {
599 wd--;
600 hd--;
601 }
602
603 // CMB: ensure dd is not larger than rectangle otherwise we
604 // get an hour glass shape
605 if (rw_d > wd) rw_d = wd;
606 if (rw_d > hd) rw_d = hd;
607 rd = rw_d / 2;
608
609 // For backing pixmap
610 int xd2 = XLOG2DEV_2 (x);
611 int yd2 = YLOG2DEV_2 (y);
612 int rd2 = XLOG2DEVREL ((long) radius);
613 int wd2 = XLOG2DEVREL (width) ;
614 int hd2 = YLOG2DEVREL (height) ;
615
616 int rw_d2 = rd2 * 2;
617 int rh_d2 = rw_d2;
618
619 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
620 {
621 SetBrush (m_brush);
622
623 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
624 wd - rw_d, hd);
625 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
626 wd, hd - rh_d);
627
628 // Arcs start from 3 o'clock, positive angles anticlockwise
629 // Top-left
630 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
631 rw_d, rh_d, 90 * 64, 90 * 64);
632 // Top-right
633 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
634 // rw_d, rh_d, 0, 90 * 64);
635 rw_d, rh_d, 0, 91 * 64);
636 // Bottom-right
637 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
638 yd + hd - rh_d,
639 // rw_d, rh_d, 270 * 64, 90 * 64);
640 rw_d, rh_d, 269 * 64, 92 * 64);
641 // Bottom-left
642 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
643 rw_d, rh_d, 180 * 64, 90 * 64);
644
645 if (m_window && m_window->GetBackingPixmap())
646 {
647 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
648 xd2 + rd2, yd2, wd2 - rw_d2, hd2);
649 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
650 xd2, yd2 + rd2, wd2, hd2 - rh_d2);
651
652 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
653 xd2, yd2, rw_d2, rh_d2, 90 * 64, 90 * 64);
654 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
655 xd2 + wd2 - rw_d2, yd2,
656 // rw_d2, rh_d2, 0, 90 * 64);
657 rw_d2, rh_d2, 0, 91 * 64);
658 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
659 xd2 + wd2 - rw_d2,
660 yd2 + hd2 - rh_d2,
661 // rw_d2, rh_d2, 270 * 64, 90 * 64);
662 rw_d2, rh_d2, 269 * 64, 92 * 64);
663 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
664 xd2, yd2 + hd2 - rh_d2,
665 rw_d2, rh_d2, 180 * 64, 90 * 64);
666 }
667 }
668
669 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
670 {
671 SetPen (m_pen);
672 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
673 xd + wd - rd + 1, yd);
674 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd + hd,
675 xd + wd - rd, yd + hd);
676
677 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
678 xd, yd + hd - rd);
679 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd, yd + rd,
680 xd + wd, yd + hd - rd + 1);
681 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
682 rw_d, rh_d, 90 * 64, 90 * 64);
683 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
684 // rw_d, rh_d, 0, 90 * 64);
685 rw_d, rh_d, 0, 91 * 64);
686 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
687 yd + hd - rh_d,
688 rw_d, rh_d, 269 * 64, 92 * 64);
689 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
690 rw_d, rh_d, 180 * 64, 90 * 64);
691
692 if (m_window && m_window->GetBackingPixmap())
693 {
694 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
695 xd2 + rd2, yd2,
696 xd2 + wd2 - rd2 + 1, yd2);
697 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
698 xd2 + rd2, yd2 + hd2,
699 xd2 + wd2 - rd2, yd2 + hd2);
700
701 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
702 xd2, yd2 + rd2,
703 xd2, yd2 + hd2 - rd2);
704 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
705 xd2 + wd2, yd2 + rd2,
706 xd2 + wd2, yd2 + hd2 - rd2 + 1);
707 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
708 xd2, yd2,
709 rw_d2, rh_d2, 90 * 64, 90 * 64);
710 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
711 xd2 + wd2 - rw_d2, yd2,
712 // rw_d2, rh_d2, 0, 90 * 64);
713 rw_d2, rh_d2, 0, 91 * 64);
714 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
715 xd2 + wd2 - rw_d2,
716 yd2 + hd2 - rh_d2,
717 rw_d2, rh_d2, 269 * 64, 92 * 64);
718 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
719 xd2, yd2 + hd2 - rh_d2,
720 rw_d2, rh_d2, 180 * 64, 90 * 64);
721 }
722 }
723 CalcBoundingBox (x, y);
724 CalcBoundingBox (x + width, y + height);
725 }
726
727 void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
728 {
729 wxCHECK_RET( IsOk(), "invalid dc" );
730
731 // Check for negative width and height
732 if (height < 0)
733 {
734 y = y + height;
735 height = - height ;
736 }
737
738 if (width < 0)
739 {
740 x = x + width;
741 width = - width ;
742 }
743
744 static const int angle = 23040;
745
746 int xd, yd, wd, hd;
747
748 xd = XLOG2DEV(x);
749 yd = YLOG2DEV(y);
750 wd = XLOG2DEVREL(width) ;
751 hd = YLOG2DEVREL(height) ;
752
753 if (m_brush.IsOk() && m_brush.GetStyle () != wxTRANSPARENT)
754 {
755 SetBrush (m_brush);
756 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
757 if (m_window && m_window->GetBackingPixmap())
758 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
759 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
760 XLOG2DEVREL (width) - WX_GC_CF,
761 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
762 }
763
764 if (m_pen.IsOk() && m_pen.GetStyle () != wxTRANSPARENT)
765 {
766 if (m_autoSetting)
767 SetPen (m_pen);
768 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
769 if (m_window && m_window->GetBackingPixmap())
770 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
771 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
772 XLOG2DEVREL (width) - WX_GC_CF,
773 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
774 }
775 CalcBoundingBox (x, y);
776 CalcBoundingBox (x + width, y + height);
777
778 }
779
780 bool wxWindowDCImpl::CanDrawBitmap() const
781 {
782 wxCHECK_MSG( IsOk(), false, "invalid dc" );
783
784 return true;
785 }
786
787 // TODO: use scaled Blit e.g. as per John Price's implementation
788 // in Contrib/Utilities
789 bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
790 wxCoord width, wxCoord height,
791 wxDC *source, wxCoord xsrc, wxCoord ysrc,
792 wxRasterOperationMode rop, bool useMask,
793 wxCoord xsrcMask, wxCoord ysrcMask )
794 {
795 wxCHECK_MSG( IsOk(), false, "invalid dc" );
796
797 wxWindowDC const * sourceDC = wxDynamicCast(source, wxWindowDC);
798 wxCHECK_MSG( sourceDC, false, "Blit source DC must be wxWindowDCImpl or derived class." );
799
800 // cast is safe in virtue of the above wxCHECK_MSG()
801 const wxWindowDCImpl * const
802 srcImpl = static_cast<const wxWindowDCImpl *>(sourceDC->GetImpl());
803 WXDisplay * const srcDpy = srcImpl->m_display;
804
805
806 // Be sure that foreground pixels (1) of the Icon will be painted with
807 // foreground colour. [m_textForegroundColour] Background pixels (0)
808 // will be painted with backgound colour (m_textBackgroundColour)
809 // Using ::SetPen is horribly slow, so avoid doing it
810 WXPixel oldBackgroundPixel = -1;
811 WXPixel oldForegroundPixel = -1;
812
813 if (m_textBackgroundColour.IsOk())
814 {
815 oldBackgroundPixel = m_backgroundPixel;
816 WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
817
818 XSetBackground ((Display*) m_display, (GC) m_gc, pixel);
819 if (m_window && m_window->GetBackingPixmap())
820 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
821 pixel);
822 }
823 if (m_textForegroundColour.IsOk())
824 {
825 oldForegroundPixel = m_currentColour.GetPixel();
826
827 if( m_textForegroundColour.GetPixel() <= -1 )
828 CalculatePixel( m_textForegroundColour,
829 m_textForegroundColour, true);
830
831 WXPixel pixel = m_textForegroundColour.GetPixel();
832 if (pixel > -1)
833 SetForegroundPixelWithLogicalFunction(pixel);
834 }
835
836 // Do bitmap scaling if necessary
837
838 wxBitmap *scaledBitmap = NULL;
839 Pixmap sourcePixmap = (Pixmap) NULL;
840 double scaleX, scaleY;
841 GetUserScale(& scaleX, & scaleY);
842 bool retVal = false;
843
844 /* TODO: use the mask origin when drawing transparently */
845 if (xsrcMask == -1 && ysrcMask == -1)
846 {
847 xsrcMask = xsrc; ysrcMask = ysrc;
848 }
849
850 // Sorry, can't scale masks just yet
851 if (!useMask && (scaleX != 1.0 || scaleY != 1.0) && sourceDC->IsKindOf(CLASSINFO(wxMemoryDC)))
852 {
853 wxMemoryDC* memDC = (wxMemoryDC*) sourceDC;
854 wxBitmap& bitmap = memDC->GetSelectedBitmap();
855
856 wxASSERT_MSG( (bitmap.IsOk()), "Bad source bitmap in wxWindowDCImpl::Blit");
857
858 wxImage image = bitmap.ConvertToImage();
859 if (!image.IsOk())
860 {
861 sourcePixmap = (Pixmap) bitmap.GetDrawable();
862 }
863 else
864 {
865 int scaledW = (int) (bitmap.GetWidth() * scaleX);
866 int scaledH = (int) (bitmap.GetHeight() * scaleY);
867
868 image = image.Scale(scaledW, scaledH);
869 scaledBitmap = new wxBitmap(image);
870 sourcePixmap = (Pixmap) scaledBitmap->GetDrawable();
871 }
872 }
873 else
874 {
875 sourcePixmap = (Pixmap) srcImpl->m_pixmap;
876 }
877
878 if (m_pixmap && sourcePixmap)
879 {
880 /* MATTHEW: [9] */
881 wxRasterOperationMode orig = m_logicalFunction;
882
883 SetLogicalFunction (rop);
884
885 if (m_display != srcDpy)
886 {
887 XImage *cache = NULL;
888
889 if (m_window && m_window->GetBackingPixmap())
890 XCopyRemote((Display*) srcDpy, (Display*) m_display,
891 (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),
892 (GC) m_gcBacking,
893 source->LogicalToDeviceX (xsrc),
894 source->LogicalToDeviceY (ysrc),
895 source->LogicalToDeviceXRel(width),
896 source->LogicalToDeviceYRel(height),
897 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest),
898 True, &cache);
899
900 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
901 {
902 wxMemoryDC *memDC = (wxMemoryDC *)source;
903 wxBitmap& sel = memDC->GetSelectedBitmap();
904 if ( sel.IsOk() && sel.GetMask() && sel.GetMask()->GetBitmap() )
905 {
906 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
907 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
908 }
909 }
910
911 XCopyRemote((Display*) srcDpy, (Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
912 source->LogicalToDeviceX (xsrc),
913 source->LogicalToDeviceY (ysrc),
914 source->LogicalToDeviceXRel(width),
915 source->LogicalToDeviceYRel(height),
916 XLOG2DEV (xdest), YLOG2DEV (ydest),
917 False, &cache);
918
919 if ( useMask )
920 {
921 if ( m_clipRegion )
922 XSetRegion ((Display*) m_display, (GC) m_gc,
923 (Region) m_clipRegion);
924 else
925 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
926
927 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
928 }
929
930 } else
931 { //XGCValues values;
932 //XGetGCValues((Display*)m_display, (GC)m_gc, GCForeground, &values);
933
934 if (m_window && m_window->GetBackingPixmap())
935 {
936 // +++ MARKUS (mho@comnets.rwth-aachen): error on blitting bitmaps with depth 1
937 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) && ((wxMemoryDC*) source)->GetSelectedBitmap().GetDepth() == 1)
938 {
939 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
940 source->LogicalToDeviceX (xsrc),
941 source->LogicalToDeviceY (ysrc),
942 source->LogicalToDeviceXRel(width),
943 source->LogicalToDeviceYRel(height),
944 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest), 1);
945 }
946 else
947 {
948 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
949 source->LogicalToDeviceX (xsrc),
950 source->LogicalToDeviceY (ysrc),
951 source->LogicalToDeviceXRel(width),
952 source->LogicalToDeviceYRel(height),
953 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest));
954 }
955 }
956 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
957 {
958 wxMemoryDC *memDC = (wxMemoryDC *)source;
959 wxBitmap& sel = memDC->GetSelectedBitmap();
960 if ( sel.IsOk() && sel.GetMask() && sel.GetMask()->GetBitmap() )
961 {
962 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
963 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
964 }
965 }
966
967 // Check if we're copying from a mono bitmap
968 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) &&
969 ((wxMemoryDC*)source)->GetSelectedBitmap().IsOk() &&
970 (((wxMemoryDC*)source)->GetSelectedBitmap().GetDepth () == 1))
971 {
972 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
973 source->LogicalToDeviceX (xsrc),
974 source->LogicalToDeviceY (ysrc),
975 source->LogicalToDeviceXRel(width),
976 source->LogicalToDeviceYRel(height),
977 XLOG2DEV (xdest), YLOG2DEV (ydest), 1);
978 }
979 else
980 {
981 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
982 source->LogicalToDeviceX (xsrc),
983 source->LogicalToDeviceY (ysrc),
984 source->LogicalToDeviceXRel(width),
985 source->LogicalToDeviceYRel(height),
986 XLOG2DEV (xdest), YLOG2DEV (ydest));
987
988 }
989 if ( useMask )
990 {
991 if ( m_clipRegion )
992 XSetRegion ((Display*) m_display, (GC) m_gc,
993 (Region) m_clipRegion);
994 else
995 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
996
997 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
998 }
999
1000 } /* Remote/local (Display*) m_display */
1001 CalcBoundingBox (xdest, ydest);
1002 CalcBoundingBox (xdest + width, ydest + height);
1003
1004 SetLogicalFunction(orig);
1005
1006 retVal = true;
1007 }
1008 if (scaledBitmap) delete scaledBitmap;
1009
1010 if (oldBackgroundPixel > -1)
1011 {
1012 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
1013 if (m_window && m_window->GetBackingPixmap())
1014 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1015 oldBackgroundPixel);
1016 }
1017 if (oldForegroundPixel > -1)
1018 {
1019 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1020 if (m_window && m_window->GetBackingPixmap())
1021 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1022 oldForegroundPixel);
1023 }
1024
1025 return retVal;
1026 }
1027
1028 void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
1029 {
1030 wxCHECK_RET( IsOk(), "invalid dc" );
1031
1032 // Since X draws from the baseline of the text, must add the text height
1033 int cx = 0;
1034 int cy = 0;
1035 int ascent = 0;
1036 int slen = text.length();
1037
1038 // Set FillStyle, otherwise X will use current stipple!
1039 XGCValues gcV, gcBackingV;
1040
1041 XGetGCValues ((Display*) m_display, (GC)m_gc, GCFillStyle, &gcV);
1042 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1043 if (m_window && m_window->GetBackingPixmap())
1044 {
1045 XGetGCValues ((Display*) m_display, (GC)m_gcBacking, GCFillStyle,
1046 &gcBackingV );
1047 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking, FillSolid);
1048 }
1049
1050 if (m_font.IsOk())
1051 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1052 text, &cx, &cy, &ascent, NULL);
1053
1054 // First draw a rectangle representing the text background, if a text
1055 // background is specified
1056 if (m_textBackgroundColour.IsOk () && (m_backgroundMode != wxTRANSPARENT))
1057 {
1058 wxColour oldPenColour = m_currentColour;
1059 m_currentColour = m_textBackgroundColour;
1060 bool sameColour = (oldPenColour.IsOk () && m_textBackgroundColour.IsOk () &&
1061 (oldPenColour.Red () == m_textBackgroundColour.Red ()) &&
1062 (oldPenColour.Blue () == m_textBackgroundColour.Blue ()) &&
1063 (oldPenColour.Green () == m_textBackgroundColour.Green ()));
1064
1065 // This separation of the big && test required for gcc2.7/HP UX 9.02
1066 // or pixel value can be corrupted!
1067 sameColour = (sameColour &&
1068 (oldPenColour.GetPixel() == m_textBackgroundColour.GetPixel()));
1069
1070 if (!sameColour || !GET_OPTIMIZATION)
1071 {
1072 WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
1073 m_currentColour = m_textBackgroundColour;
1074
1075 // Set the GC to the required colour
1076 if (pixel > -1)
1077 {
1078 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1079 if (m_window && m_window->GetBackingPixmap())
1080 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1081 }
1082 }
1083 else
1084 m_textBackgroundColour = oldPenColour ;
1085
1086 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y), cx, cy);
1087 if (m_window && m_window->GetBackingPixmap())
1088 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1089 XLOG2DEV_2 (x), YLOG2DEV_2 (y), cx, cy);
1090 }
1091
1092 // Now set the text foreground and draw the text
1093 if (m_textForegroundColour.IsOk ())
1094 {
1095 wxColour oldPenColour = m_currentColour;
1096 m_currentColour = m_textForegroundColour;
1097 bool sameColour = (oldPenColour.IsOk () && m_currentColour.IsOk () &&
1098 (oldPenColour.Red () == m_currentColour.Red ()) &&
1099 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1100 (oldPenColour.Green () == m_currentColour.Green ()) &&
1101 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1102
1103 if (!sameColour || !GET_OPTIMIZATION)
1104 {
1105 WXPixel pixel = CalculatePixel(m_textForegroundColour,
1106 m_currentColour, false);
1107
1108 // Set the GC to the required colour
1109 if (pixel > -1)
1110 {
1111 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1112 if (m_window && m_window->GetBackingPixmap())
1113 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1114 }
1115 }
1116 else
1117 m_textForegroundColour = oldPenColour;
1118 }
1119
1120 // We need to add the ascent, not the whole height, since X draws at the
1121 // point above the descender.
1122 #if 0
1123 if (use16)
1124 XDrawString16((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent,
1125 (XChar2b *)(char*) (const char*) text, slen);
1126 else
1127 #endif // 0
1128 #if wxMOTIF_NEW_FONT_HANDLING
1129 XFontSet fset = (XFontSet) m_font.GetFontSet (m_userScaleY * m_logicalScaleY, m_display);
1130 XmbDrawString((Display*) m_display, (Pixmap) m_pixmap, fset, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
1131 #else
1132 XDrawString((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
1133 #endif
1134
1135 if (m_window && m_window->GetBackingPixmap()) {
1136 #if 0
1137 if (use16)
1138 XDrawString16((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1139 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1140 (XChar2b *)(char*) (const char*) text, slen);
1141 else
1142 #endif // 0
1143 #if wxMOTIF_NEW_FONT_HANDLING
1144 XmbDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), fset, (GC) m_gcBacking,
1145 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1146 text.mb_str(), slen);
1147 #else
1148 XDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1149 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1150 text.mb_str(), slen);
1151 #endif
1152 }
1153
1154 // restore fill style
1155 XSetFillStyle ((Display*) m_display, (GC) m_gc, gcV.fill_style);
1156 if (m_window && m_window->GetBackingPixmap())
1157 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking,
1158 gcBackingV.fill_style);
1159
1160 wxCoord w, h;
1161 DoGetTextExtent (text, &w, &h);
1162 CalcBoundingBox (x + w, y + h);
1163 CalcBoundingBox (x, y);
1164 }
1165
1166 void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
1167 double angle )
1168 {
1169 if (angle == 0.0)
1170 {
1171 DoDrawText(text, x, y);
1172 return;
1173 }
1174
1175 wxCHECK_RET( IsOk(), "invalid dc" );
1176
1177 WXPixel oldBackgroundPixel = -1;
1178 WXPixel oldForegroundPixel = -1;
1179 WXPixel foregroundPixel = -1;
1180 WXPixel backgroundPixel = -1;
1181
1182 if (m_textBackgroundColour.IsOk())
1183 {
1184 oldBackgroundPixel = m_backgroundPixel;
1185 backgroundPixel = m_textBackgroundColour.AllocColour(m_display);
1186 }
1187 if (m_textForegroundColour.IsOk())
1188 {
1189 oldForegroundPixel = m_currentColour.GetPixel();
1190
1191 if( m_textForegroundColour.GetPixel() <= -1 )
1192 CalculatePixel( m_textForegroundColour,
1193 m_textForegroundColour, true);
1194
1195 foregroundPixel = m_textForegroundColour.GetPixel();
1196 }
1197
1198 // Since X draws from the baseline of the text, must add the text height
1199 int cx = 0;
1200 int cy = 0;
1201 int ascent = 0;
1202
1203 if (m_font.IsOk())
1204 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1205 text, &cx, &cy, &ascent, NULL);
1206
1207 wxBitmap src(cx, cy);
1208 wxMemoryDC dc;
1209 dc.SelectObject(src);
1210 dc.SetFont(GetFont());
1211 dc.SetBackground(*wxWHITE_BRUSH);
1212 dc.SetBrush(*wxBLACK_BRUSH);
1213 dc.Clear();
1214 dc.DrawText(text, 0, 0);
1215 dc.SetFont(wxNullFont);
1216
1217 // Calculate the size of the rotated bounding box.
1218 double dx = cos(angle / 180.0 * M_PI);
1219 double dy = sin(angle / 180.0 * M_PI);
1220 double x4 = cy * dy;
1221 double y4 = cy * dx;
1222 double x3 = cx * dx;
1223 double y3 = -cx * dy;
1224 double x2 = x3 + x4;
1225 double y2 = y3 + y4;
1226 double x1 = x;
1227 double y1 = y;
1228
1229 // Create image from the source bitmap after writing the text into it.
1230 wxImage image = src.ConvertToImage();
1231
1232 int minx = roundmin(0, roundmin(x4, roundmin(x2, x3)));
1233 int miny = roundmin(0, roundmin(y4, roundmin(y2, y3)));
1234 int maxx = roundmax(0, roundmax(x4, roundmax(x2, x3)));
1235 int maxy = roundmax(0, roundmax(y4, roundmax(y2, y3)));
1236
1237 bool lastFore = false, lastBack = false;
1238
1239 // This rotates counterclockwise around the top left corner.
1240 for (int rx = minx; rx < maxx; rx++)
1241 {
1242 for (int ry = miny; ry < maxy; ry++)
1243 {
1244 // transform dest coords to source coords
1245 int sx = (int) (rx * dx - ry * dy + 0.5);
1246 int sy = - (int) (-ry * dx - rx * dy + 0.5);
1247 if (sx >= 0 && sx < cx && sy >= 0 && sy < cy)
1248 {
1249 bool textPixel = image.GetRed(sx, sy) == 0;
1250
1251 if (!textPixel && m_backgroundMode != wxSOLID)
1252 continue;
1253
1254 wxCoord ox = (wxCoord) (x1 + rx),
1255 oy = (wxCoord) (y1 + ry);
1256 // draw black pixels, ignore white ones (i.e. transparent b/g)
1257 if (textPixel && !lastFore)
1258 {
1259 XSetForeground ((Display*) m_display, (GC) m_gc,
1260 foregroundPixel);
1261 lastFore = true;
1262 lastBack = false;
1263 }
1264 else if (!textPixel && !lastBack)
1265 {
1266 XSetForeground ((Display*) m_display, (GC) m_gc,
1267 backgroundPixel);
1268 lastFore = false;
1269 lastBack = true;
1270 }
1271
1272 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap,
1273 (GC) m_gc, XLOG2DEV (ox), YLOG2DEV (oy));
1274 if (m_window && m_window->GetBackingPixmap())
1275 XDrawPoint ((Display*) m_display,
1276 (Pixmap) m_window->GetBackingPixmap(),
1277 (GC) m_gcBacking,
1278 XLOG2DEV_2 (ox), YLOG2DEV_2 (oy));
1279 }
1280 }
1281 }
1282
1283 if (oldBackgroundPixel > -1)
1284 {
1285 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
1286 if (m_window && m_window->GetBackingPixmap())
1287 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1288 oldBackgroundPixel);
1289 }
1290 if (oldForegroundPixel > -1)
1291 {
1292 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1293 if (m_window && m_window->GetBackingPixmap())
1294 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1295 oldForegroundPixel);
1296 }
1297
1298 CalcBoundingBox (minx, miny);
1299 CalcBoundingBox (maxx, maxy);
1300 }
1301
1302 bool wxWindowDCImpl::CanGetTextExtent() const
1303 {
1304 return true;
1305 }
1306
1307 void wxWindowDCImpl::DoGetTextExtent( const wxString &string, wxCoord *width, wxCoord *height,
1308 wxCoord *descent, wxCoord *externalLeading,
1309 const wxFont *font ) const
1310 {
1311 wxCHECK_RET( IsOk(), "invalid dc" );
1312
1313 const wxFont* theFont = font ? font : &m_font;
1314
1315 if (!theFont->IsOk())
1316 {
1317 // TODO: this should be an error log function
1318 wxFAIL_MSG("set a valid font before calling GetTextExtent!");
1319
1320 if (width) *width = -1;
1321 if (height) *height = -1;
1322 return;
1323 }
1324
1325 wxGetTextExtent(m_display, *theFont, m_userScaleY * m_logicalScaleY,
1326 string, width, height, NULL, descent);
1327
1328 if (width) *width = XDEV2LOGREL (*width);
1329 if (height) *height = YDEV2LOGREL (*height);
1330 if (externalLeading)
1331 *externalLeading = 0;
1332 }
1333
1334 wxCoord wxWindowDCImpl::GetCharWidth() const
1335 {
1336 wxCHECK_MSG( IsOk(), 0, "invalid dc" );
1337 wxCHECK_MSG( m_font.IsOk(), 0, "invalid font" );
1338
1339 int width;
1340
1341 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1342 "x", &width, NULL, NULL, NULL);
1343
1344 return XDEV2LOGREL(width);
1345 }
1346
1347 wxCoord wxWindowDCImpl::GetCharHeight() const
1348 {
1349 wxCHECK_MSG( IsOk(), 0, "invalid dc" );
1350 wxCHECK_MSG( m_font.IsOk(), 0, "invalid font" );
1351
1352 int height;
1353
1354 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1355 "x", NULL, &height, NULL, NULL);
1356
1357 return XDEV2LOGREL(height);
1358 }
1359
1360 void wxWindowDCImpl::DoGetSize( int *width, int *height ) const
1361 {
1362 int w = 0, h = 0;
1363
1364 if( m_window )
1365 {
1366 if( m_window->GetBackingPixmap() )
1367 {
1368 w = m_window->GetPixmapWidth();
1369 h = m_window->GetPixmapHeight();
1370 }
1371 else
1372 m_window->GetSize( &w, &h );
1373 }
1374
1375 if( width ) *width = w;
1376 if( height ) *height = h;
1377 }
1378
1379 void wxWindowDCImpl::Clear()
1380 {
1381 wxCHECK_RET( IsOk(), "invalid dc" );
1382
1383 wxRect rect( GetSize() );
1384 Clear( rect );
1385 }
1386
1387 void wxWindowDCImpl::Clear(const wxRect& rect)
1388 {
1389 wxCHECK_RET( IsOk(), "invalid dc" );
1390
1391 int x = rect.x; int y = rect.y;
1392 int w = rect.width; int h = rect.height;
1393
1394 wxBrush saveBrush = m_brush;
1395 SetBrush (m_backgroundBrush);
1396
1397 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
1398 x, y, w, h);
1399
1400 if (m_window && m_window->GetBackingPixmap())
1401 XFillRectangle ((Display*) m_display,
1402 (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1403 x, y, w, h);
1404
1405 m_brush = saveBrush;
1406 }
1407
1408 void wxWindowDCImpl::SetFont( const wxFont &font )
1409 {
1410 wxCHECK_RET( IsOk(), "invalid dc" );
1411
1412 m_font = font;
1413
1414 if (!m_font.IsOk())
1415 {
1416 return;
1417 }
1418
1419 #if !wxMOTIF_NEW_FONT_HANDLING
1420 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1421
1422 Font fontId = ((XFontStruct*)pFontStruct)->fid;
1423 XSetFont ((Display*) m_display, (GC) m_gc, fontId);
1424
1425 if (m_window && m_window->GetBackingPixmap())
1426 XSetFont ((Display*) m_display,(GC) m_gcBacking, fontId);
1427 #endif
1428 }
1429
1430 void wxWindowDCImpl::SetForegroundPixelWithLogicalFunction(WXPixel pixel)
1431 {
1432 if (m_logicalFunction == wxXOR)
1433 {
1434 XGCValues values;
1435 XGetGCValues ((Display*) m_display, (GC) m_gc, GCBackground, &values);
1436 XSetForeground ((Display*) m_display, (GC) m_gc,
1437 pixel ^ values.background);
1438 if (m_window && m_window->GetBackingPixmap())
1439 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1440 pixel ^ values.background);
1441 }
1442 else
1443 {
1444 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1445 if (m_window && m_window->GetBackingPixmap())
1446 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1447 }
1448 }
1449
1450 WXPixel wxWindowDCImpl::CalculatePixel(wxColour& colour, wxColour& curCol,
1451 bool roundToWhite) const
1452 {
1453 const unsigned char wp = (unsigned char)255;
1454
1455 WXPixel pixel = -1;
1456 if(!m_colour) // Mono display
1457 {
1458 unsigned char red = colour.Red ();
1459 unsigned char blue = colour.Blue ();
1460 unsigned char green = colour.Green ();
1461 // white
1462 if((red == wp && blue == wp && green == wp) ||
1463 // not black and roundToWhite was specified
1464 ((red != 0 || blue != 0 || green != 0) && roundToWhite))
1465 {
1466 curCol = *wxWHITE;
1467 pixel = WhitePixel((Display*) m_display,
1468 DefaultScreen((Display*) m_display));
1469 curCol.SetPixel(pixel);
1470 colour.SetPixel(pixel);
1471 }
1472 else
1473 {
1474 curCol = *wxBLACK;
1475 pixel = BlackPixel((Display*) m_display,
1476 DefaultScreen((Display*) m_display));
1477 curCol.SetPixel(pixel);
1478 colour.SetPixel(pixel);
1479 }
1480 }
1481 else
1482 {
1483 curCol = colour;
1484 pixel = colour.AllocColour((Display*) m_display);
1485 curCol.SetPixel(pixel);
1486 }
1487
1488 return pixel;
1489 }
1490
1491 void wxWindowDCImpl::SetPen( const wxPen &pen )
1492 {
1493 wxCHECK_RET( IsOk(), "invalid dc" );
1494
1495 m_pen = pen;
1496 if (!m_pen.IsOk())
1497 return;
1498
1499 wxBitmap oldStipple = m_currentStipple;
1500 int oldStyle = m_currentStyle;
1501 int oldFill = m_currentFill;
1502 int old_pen_width = m_currentPenWidth;
1503 int old_pen_join = m_currentPenJoin;
1504 int old_pen_cap = m_currentPenCap;
1505 int old_pen_nb_dash = m_currentPenDashCount;
1506 wxX11Dash *old_pen_dash = m_currentPenDash;
1507
1508 wxColour oldPenColour = m_currentColour;
1509 m_currentColour = m_pen.GetColour ();
1510 m_currentStyle = m_pen.GetStyle ();
1511 m_currentFill = m_pen.GetStyle (); // TODO?
1512 m_currentPenWidth = m_pen.GetWidth ();
1513 m_currentPenJoin = m_pen.GetJoin ();
1514 m_currentPenCap = m_pen.GetCap ();
1515 m_currentPenDashCount = m_pen.GetDashCount();
1516 m_currentPenDash = (wxX11Dash*)m_pen.GetDash();
1517
1518 if (m_currentStyle == wxSTIPPLE)
1519 m_currentStipple = * m_pen.GetStipple ();
1520
1521 bool sameStyle = (oldStyle == m_currentStyle &&
1522 oldFill == m_currentFill &&
1523 old_pen_join == m_currentPenJoin &&
1524 old_pen_cap == m_currentPenCap &&
1525 old_pen_nb_dash == m_currentPenDashCount &&
1526 old_pen_dash == m_currentPenDash &&
1527 old_pen_width == m_currentPenWidth);
1528
1529 bool sameColour = (oldPenColour.IsOk () &&
1530 (oldPenColour.Red () == m_currentColour.Red ()) &&
1531 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1532 (oldPenColour.Green () == m_currentColour.Green ()) &&
1533 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1534
1535 if (!sameStyle || !GET_OPTIMIZATION)
1536 {
1537 int scaled_width = (int) XLOG2DEVREL (m_pen.GetWidth ());
1538 if (scaled_width < 0)
1539 scaled_width = 0;
1540
1541 int style;
1542 int join;
1543 int cap;
1544 static const wxX11Dash dotted[] = {2, 5};
1545 static const wxX11Dash short_dashed[] = {4, 4};
1546 static const wxX11Dash long_dashed[] = {4, 8};
1547 static const wxX11Dash dotted_dashed[] = {6, 6, 2, 6};
1548
1549 // We express dash pattern in pen width unit, so we are
1550 // independent of zoom factor and so on...
1551 int req_nb_dash;
1552 const wxX11Dash *req_dash;
1553
1554 switch (m_pen.GetStyle ())
1555 {
1556 case wxUSER_DASH:
1557 req_nb_dash = m_currentPenDashCount;
1558 req_dash = m_currentPenDash;
1559 style = LineOnOffDash;
1560 break;
1561 case wxDOT:
1562 req_nb_dash = 2;
1563 req_dash = dotted;
1564 style = LineOnOffDash;
1565 break;
1566 case wxSHORT_DASH:
1567 req_nb_dash = 2;
1568 req_dash = short_dashed;
1569 style = LineOnOffDash;
1570 break;
1571 case wxLONG_DASH:
1572 req_nb_dash = 2;
1573 req_dash = long_dashed;
1574 style = LineOnOffDash;
1575 break;
1576 case wxDOT_DASH:
1577 req_nb_dash = 4;
1578 req_dash = dotted_dashed;
1579 style = LineOnOffDash;
1580 break;
1581 case wxSTIPPLE:
1582 case wxSOLID:
1583 case wxTRANSPARENT:
1584 default:
1585 style = LineSolid;
1586 req_dash = NULL;
1587 req_nb_dash = 0;
1588 }
1589
1590 if (req_dash && req_nb_dash)
1591 {
1592 wxX11Dash *real_req_dash = new wxX11Dash[req_nb_dash];
1593 if (real_req_dash)
1594 {
1595 int factor = scaled_width == 0 ? 1 : scaled_width;
1596 for (int i = 0; i < req_nb_dash; i++)
1597 real_req_dash[i] = (wxX11Dash)(req_dash[i] * factor);
1598 XSetDashes ((Display*) m_display, (GC) m_gc, 0, real_req_dash, req_nb_dash);
1599
1600 if (m_window && m_window->GetBackingPixmap())
1601 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, real_req_dash, req_nb_dash);
1602 delete[]real_req_dash;
1603 }
1604 else
1605 {
1606 // No Memory. We use non-scaled dash pattern...
1607 XSetDashes ((Display*) m_display, (GC) m_gc, 0, req_dash, req_nb_dash);
1608
1609 if (m_window && m_window->GetBackingPixmap())
1610 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, req_dash, req_nb_dash);
1611 }
1612 }
1613
1614 switch (m_pen.GetCap ())
1615 {
1616 case wxCAP_PROJECTING:
1617 cap = CapProjecting;
1618 break;
1619 case wxCAP_BUTT:
1620 cap = CapButt;
1621 break;
1622 case wxCAP_ROUND:
1623 default:
1624 cap = (scaled_width <= 1) ? CapNotLast : CapRound;
1625 break;
1626 }
1627
1628 switch (m_pen.GetJoin ())
1629 {
1630 case wxJOIN_BEVEL:
1631 join = JoinBevel;
1632 break;
1633 case wxJOIN_MITER:
1634 join = JoinMiter;
1635 break;
1636 case wxJOIN_ROUND:
1637 default:
1638 join = JoinRound;
1639 break;
1640 }
1641
1642 XSetLineAttributes ((Display*) m_display, (GC) m_gc, scaled_width, style, cap, join);
1643
1644 if (m_window && m_window->GetBackingPixmap())
1645 XSetLineAttributes ((Display*) m_display,(GC) m_gcBacking, scaled_width, style, cap, join);
1646 }
1647
1648 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1649 {
1650 Pixmap myStipple;
1651
1652 oldStipple = wxNullBitmap; // For later reset!!
1653
1654 switch (m_currentFill)
1655 {
1656 case wxBDIAGONAL_HATCH:
1657 if (bdiag == (Pixmap) 0)
1658 bdiag = XCreateBitmapFromData ((Display*) m_display,
1659 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1660 bdiag_bits, bdiag_width, bdiag_height);
1661 myStipple = bdiag;
1662 break;
1663 case wxFDIAGONAL_HATCH:
1664 if (fdiag == (Pixmap) 0)
1665 fdiag = XCreateBitmapFromData ((Display*) m_display,
1666 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1667 fdiag_bits, fdiag_width, fdiag_height);
1668 myStipple = fdiag;
1669 break;
1670 case wxCROSS_HATCH:
1671 if (cross == (Pixmap) 0)
1672 cross = XCreateBitmapFromData ((Display*) m_display,
1673 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1674 cross_bits, cross_width, cross_height);
1675 myStipple = cross;
1676 break;
1677 case wxHORIZONTAL_HATCH:
1678 if (horiz == (Pixmap) 0)
1679 horiz = XCreateBitmapFromData ((Display*) m_display,
1680 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1681 horiz_bits, horiz_width, horiz_height);
1682 myStipple = horiz;
1683 break;
1684 case wxVERTICAL_HATCH:
1685 if (verti == (Pixmap) 0)
1686 verti = XCreateBitmapFromData ((Display*) m_display,
1687 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1688 verti_bits, verti_width, verti_height);
1689 myStipple = verti;
1690 break;
1691 case wxCROSSDIAG_HATCH:
1692 default:
1693 if (cdiag == (Pixmap) 0)
1694 cdiag = XCreateBitmapFromData ((Display*) m_display,
1695 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1696 cdiag_bits, cdiag_width, cdiag_height);
1697 myStipple = cdiag;
1698 break;
1699 }
1700 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1701
1702 if (m_window && m_window->GetBackingPixmap())
1703 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1704 }
1705 else if (m_currentStyle == wxSTIPPLE && m_currentStipple.IsOk()
1706 && ((!m_currentStipple.IsSameAs(oldStipple)) || !GET_OPTIMIZATION))
1707 {
1708 XSetStipple ((Display*) m_display, (GC) m_gc, (Pixmap) m_currentStipple.GetDrawable());
1709
1710 if (m_window && m_window->GetBackingPixmap())
1711 XSetStipple ((Display*) m_display,(GC) m_gcBacking, (Pixmap) m_currentStipple.GetDrawable());
1712 }
1713
1714 if ((m_currentFill != oldFill) || !GET_OPTIMIZATION)
1715 {
1716 int fill_style;
1717
1718 if (m_currentFill == wxSTIPPLE)
1719 fill_style = FillStippled;
1720 else if (IS_HATCH (m_currentFill))
1721 fill_style = FillStippled;
1722 else
1723 fill_style = FillSolid;
1724 XSetFillStyle ((Display*) m_display, (GC) m_gc, fill_style);
1725 if (m_window && m_window->GetBackingPixmap())
1726 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, fill_style);
1727 }
1728
1729 // must test m_logicalFunction, because it involves background!
1730 if (!sameColour || !GET_OPTIMIZATION
1731 || ((m_logicalFunction == wxXOR) || (m_autoSetting & 0x2)))
1732 {
1733 WXPixel pixel = -1;
1734 if (m_pen.GetStyle () == wxTRANSPARENT)
1735 pixel = m_backgroundPixel;
1736 else
1737 {
1738 wxColour penClr = m_pen.GetColour();
1739 pixel = CalculatePixel( penClr, m_currentColour, false);
1740 m_pen.SetColour(penClr);
1741 }
1742
1743 // Finally, set the GC to the required colour
1744 if (pixel > -1)
1745 SetForegroundPixelWithLogicalFunction(pixel);
1746 }
1747 else
1748 m_pen.GetColour().SetPixel(oldPenColour.GetPixel());
1749
1750 m_autoSetting = 0;
1751 }
1752
1753 void wxWindowDCImpl::SetBrush( const wxBrush &brush )
1754 {
1755 wxCHECK_RET( IsOk(), "invalid dc" );
1756
1757 m_brush = brush;
1758
1759 if (!m_brush.IsOk() || m_brush.GetStyle () == wxTRANSPARENT)
1760 return;
1761
1762 int oldFill = m_currentFill;
1763 wxBitmap oldStipple = m_currentStipple;
1764
1765 m_autoSetting |= 0x1;
1766
1767 m_currentFill = m_brush.GetStyle ();
1768 if (m_currentFill == wxSTIPPLE)
1769 m_currentStipple = * m_brush.GetStipple ();
1770
1771 wxColour oldBrushColour(m_currentColour);
1772 m_currentColour = m_brush.GetColour ();
1773
1774 bool sameColour = (oldBrushColour.IsOk () &&
1775 (oldBrushColour.Red () == m_currentColour.Red ()) &&
1776 (oldBrushColour.Blue () == m_currentColour.Blue ()) &&
1777 (oldBrushColour.Green () == m_currentColour.Green ()) &&
1778 (oldBrushColour.GetPixel() == m_currentColour.GetPixel()));
1779
1780 int stippleDepth = -1;
1781
1782 if ((oldFill != m_brush.GetStyle ()) || !GET_OPTIMIZATION)
1783 {
1784 switch (brush.GetStyle ())
1785 {
1786 case wxTRANSPARENT:
1787 break;
1788 case wxSTIPPLE:
1789 stippleDepth = m_currentStipple.GetDepth();
1790 // fall through!
1791 case wxBDIAGONAL_HATCH:
1792 case wxCROSSDIAG_HATCH:
1793 case wxFDIAGONAL_HATCH:
1794 case wxCROSS_HATCH:
1795 case wxHORIZONTAL_HATCH:
1796 case wxVERTICAL_HATCH:
1797 {
1798 if (stippleDepth == -1) stippleDepth = 1;
1799
1800 // Chris Breeze 23/07/97: use background mode to
1801 // determine whether fill style should be solid or
1802 // transparent
1803 int style = stippleDepth == 1 ?
1804 (m_backgroundMode == wxSOLID ?
1805 FillOpaqueStippled : FillStippled) :
1806 FillTiled;
1807 XSetFillStyle ((Display*) m_display, (GC) m_gc, style);
1808 if (m_window && m_window->GetBackingPixmap())
1809 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, style);
1810 }
1811 break;
1812 case wxSOLID:
1813 default:
1814 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1815 if (m_window && m_window->GetBackingPixmap())
1816 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking,
1817 FillSolid);
1818 }
1819 }
1820
1821 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1822 {
1823 Pixmap myStipple;
1824
1825 switch (m_currentFill)
1826 {
1827 case wxBDIAGONAL_HATCH:
1828 if (bdiag == (Pixmap) 0)
1829 bdiag = XCreateBitmapFromData ((Display*) m_display,
1830 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1831 bdiag_bits, bdiag_width, bdiag_height);
1832 myStipple = bdiag;
1833 break;
1834 case wxFDIAGONAL_HATCH:
1835 if (fdiag == (Pixmap) 0)
1836 fdiag = XCreateBitmapFromData ((Display*) m_display,
1837 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1838 fdiag_bits, fdiag_width, fdiag_height);
1839 myStipple = fdiag;
1840 break;
1841 case wxCROSS_HATCH:
1842 if (cross == (Pixmap) 0)
1843 cross = XCreateBitmapFromData ((Display*) m_display,
1844 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1845 cross_bits, cross_width, cross_height);
1846 myStipple = cross;
1847 break;
1848 case wxHORIZONTAL_HATCH:
1849 if (horiz == (Pixmap) 0)
1850 horiz = XCreateBitmapFromData ((Display*) m_display,
1851 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1852 horiz_bits, horiz_width, horiz_height);
1853 myStipple = horiz;
1854 break;
1855 case wxVERTICAL_HATCH:
1856 if (verti == (Pixmap) 0)
1857 verti = XCreateBitmapFromData ((Display*) m_display,
1858 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1859 verti_bits, verti_width, verti_height);
1860 myStipple = verti;
1861 break;
1862 case wxCROSSDIAG_HATCH:
1863 default:
1864 if (cdiag == (Pixmap) 0)
1865 cdiag = XCreateBitmapFromData ((Display*) m_display,
1866 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1867 cdiag_bits, cdiag_width, cdiag_height);
1868 myStipple = cdiag;
1869 break;
1870 }
1871 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1872
1873 if (m_window && m_window->GetBackingPixmap())
1874 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1875 }
1876 // X can forget the stipple value when resizing a window (apparently)
1877 // so always set the stipple.
1878 else if (m_currentFill != wxSOLID && m_currentFill != wxTRANSPARENT &&
1879 m_currentStipple.IsOk()) // && m_currentStipple != oldStipple)
1880 {
1881 if (m_currentStipple.GetDepth() == 1)
1882 {
1883 XSetStipple ((Display*) m_display, (GC) m_gc,
1884 (Pixmap) m_currentStipple.GetDrawable());
1885 if (m_window && m_window->GetBackingPixmap())
1886 XSetStipple ((Display*) m_display,(GC) m_gcBacking,
1887 (Pixmap) m_currentStipple.GetDrawable());
1888 }
1889 else
1890 {
1891 XSetTile ((Display*) m_display, (GC) m_gc,
1892 (Pixmap) m_currentStipple.GetDrawable());
1893 if (m_window && m_window->GetBackingPixmap())
1894 XSetTile ((Display*) m_display,(GC) m_gcBacking,
1895 (Pixmap) m_currentStipple.GetDrawable());
1896 }
1897 }
1898
1899 // must test m_logicalFunction, because it involves background!
1900 if (!sameColour || !GET_OPTIMIZATION || m_logicalFunction == wxXOR)
1901 {
1902 wxColour brushClr = m_brush.GetColour();
1903 WXPixel pixel = CalculatePixel( brushClr, m_currentColour, true);
1904 m_brush.SetColour(brushClr);
1905
1906 if (pixel > -1)
1907 SetForegroundPixelWithLogicalFunction(pixel);
1908 }
1909 else
1910 m_brush.GetColour().SetPixel(oldBrushColour.GetPixel());
1911 }
1912
1913 void wxWindowDCImpl::SetBackground( const wxBrush &brush )
1914 {
1915 wxCHECK_RET( IsOk(), "invalid dc" );
1916
1917 m_backgroundBrush = brush;
1918
1919 if (!m_backgroundBrush.IsOk())
1920 return;
1921
1922 m_backgroundPixel = m_backgroundBrush.GetColour().AllocColour(m_display);
1923
1924 // Necessary for ::DrawIcon, which use fg/bg pixel or the GC.
1925 // And Blit,... (Any fct that use XCopyPlane, in fact.)
1926 XSetBackground ((Display*) m_display, (GC) m_gc, m_backgroundPixel);
1927 if (m_window && m_window->GetBackingPixmap())
1928 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1929 m_backgroundPixel);
1930 }
1931
1932 void wxWindowDCImpl::SetLogicalFunction( wxRasterOperationMode function )
1933 {
1934 wxCHECK_RET( IsOk(), "invalid dc" );
1935
1936 int x_function;
1937
1938 /* MATTHEW: [9] */
1939 if (m_logicalFunction == function)
1940 return;
1941
1942 switch (function)
1943 {
1944 case wxCLEAR:
1945 x_function = GXclear;
1946 break;
1947 case wxXOR:
1948 x_function = GXxor;
1949 break;
1950 case wxINVERT:
1951 x_function = GXinvert;
1952 break;
1953 case wxOR_REVERSE:
1954 x_function = GXorReverse;
1955 break;
1956 case wxAND_REVERSE:
1957 x_function = GXandReverse;
1958 break;
1959 case wxAND:
1960 x_function = GXand;
1961 break;
1962 case wxOR:
1963 x_function = GXor;
1964 break;
1965 case wxAND_INVERT:
1966 x_function = GXandInverted;
1967 break;
1968 case wxNO_OP:
1969 x_function = GXnoop;
1970 break;
1971 case wxNOR:
1972 x_function = GXnor;
1973 break;
1974 case wxEQUIV:
1975 x_function = GXequiv;
1976 break;
1977 case wxSRC_INVERT:
1978 x_function = GXcopyInverted;
1979 break;
1980 case wxOR_INVERT:
1981 x_function = GXorInverted;
1982 break;
1983 case wxNAND:
1984 x_function = GXnand;
1985 break;
1986 case wxSET:
1987 x_function = GXset;
1988 break;
1989 case wxCOPY:
1990 default:
1991 x_function = GXcopy;
1992 break;
1993 }
1994
1995 XSetFunction((Display*) m_display, (GC) m_gc, x_function);
1996 if (m_window && m_window->GetBackingPixmap())
1997 XSetFunction((Display*) m_display, (GC) m_gcBacking, x_function);
1998
1999 if ((m_logicalFunction == wxXOR) != (function == wxXOR))
2000 /* MATTHEW: [9] Need to redo pen simply */
2001 m_autoSetting |= 0x2;
2002
2003 m_logicalFunction = function;
2004
2005 }
2006
2007 void wxWindowDCImpl::SetTextForeground( const wxColour &col )
2008 {
2009 wxCHECK_RET( IsOk(), "invalid dc" );
2010
2011 m_textForegroundColour = col;
2012 }
2013
2014 void wxWindowDCImpl::SetTextBackground( const wxColour &col )
2015 {
2016 wxCHECK_RET( IsOk(), "invalid dc" );
2017
2018 m_textBackgroundColour = col;
2019 }
2020
2021 void wxWindowDCImpl::SetBackgroundMode( int mode )
2022 {
2023 m_backgroundMode = mode;
2024 }
2025
2026 void wxWindowDCImpl::SetPalette( const wxPalette& palette )
2027 {
2028 if (m_window)
2029 {
2030 if (palette.IsOk())
2031 /* Use GetXColormap */
2032 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2033 (Colormap) palette.GetXColormap());
2034 else
2035 /* Use wxGetMainColormap */
2036 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2037 (Colormap) wxTheApp->GetMainColormap(m_display));
2038 }
2039 }
2040
2041 static void wxCopyRegion( WXRegion src, WXRegion& dst )
2042 {
2043 if( !dst )
2044 dst = XCreateRegion();
2045 XUnionRegion( (Region)src, (Region)src, (Region)dst );
2046 }
2047
2048 // Helper function; userRegion is the region set by calling SetClippingRegion
2049 void wxWindowDCImpl::SetDCClipping( WXRegion userRegion )
2050 {
2051 bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().IsOk();
2052 // this means that we should start the clip region from scratch,
2053 // or from the update region, if any
2054 if( !userRegion )
2055 {
2056 if( m_clipRegion )
2057 XDestroyRegion( (Region)m_clipRegion );
2058 m_clipRegion = (WXRegion)NULL;
2059
2060 if( hasUpdateRegion )
2061 wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
2062 m_clipRegion );
2063 }
2064 // intersect the user region, if any, with the
2065 // exisiting clip region
2066 else // if( userRegion )
2067 {
2068 if( !m_clipRegion )
2069 wxCopyRegion( userRegion, m_clipRegion );
2070 else
2071 XIntersectRegion( (Region)m_clipRegion,
2072 (Region)userRegion, (Region)m_clipRegion );
2073 }
2074
2075 if( m_clipRegion )
2076 XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
2077 else
2078 XSetClipMask( (Display*)m_display, (GC)m_gc, None );
2079 }
2080
2081 void wxWindowDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y,
2082 wxCoord width, wxCoord height )
2083 {
2084 wxMotifDCImpl::DoSetClippingRegion( x, y, width, height );
2085
2086 wxRegion temp(XLOG2DEV(x), YLOG2DEV(y),
2087 XLOG2DEVREL(width), YLOG2DEVREL(height));
2088
2089 SetDCClipping(temp.GetX11Region());
2090
2091 // Needs to work differently for Pixmap: without this,
2092 // there's a nasty (Display*) m_display bug. 8/12/94
2093 if (m_window && m_window->GetBackingPixmap())
2094 {
2095 XRectangle rects[1];
2096 rects[0].x = (short)XLOG2DEV_2(x);
2097 rects[0].y = (short)YLOG2DEV_2(y);
2098 rects[0].width = (unsigned short)XLOG2DEVREL(width);
2099 rects[0].height = (unsigned short)YLOG2DEVREL(height);
2100 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2101 0, 0, rects, 1, Unsorted);
2102 }
2103 }
2104
2105 void wxWindowDCImpl::DoSetDeviceClippingRegion( const wxRegion& region )
2106 {
2107 SetDCClipping(region.GetX11Region());
2108
2109 // Needs to work differently for Pixmap: without this,
2110 // there's a nasty (Display*) m_display bug. 8/12/94
2111 if (m_window && m_window->GetBackingPixmap())
2112 {
2113 wxRect box = region.GetBox();
2114
2115 XRectangle rects[1];
2116 rects[0].x = (short)box.x;
2117 rects[0].y = (short)box.y;
2118 rects[0].width = (unsigned short)box.width;
2119 rects[0].height = (unsigned short)box.height;
2120 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2121 0, 0, rects, 1, Unsorted);
2122 }
2123 }
2124
2125
2126 void wxWindowDCImpl::DestroyClippingRegion()
2127 {
2128 wxMotifDCImpl::DestroyClippingRegion();
2129
2130 SetDCClipping(NULL);
2131
2132 if (m_window && m_window->GetBackingPixmap())
2133 XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
2134 }
2135
2136 // Resolution in pixels per logical inch
2137 wxSize wxWindowDCImpl::GetPPI() const
2138 {
2139 // TODO
2140 return wxSize(100, 100);
2141 }
2142
2143 int wxWindowDCImpl::GetDepth() const
2144 {
2145 // TODO
2146 return 24;
2147 }
2148
2149
2150
2151
2152 // ----------------------------------------------------------------------------
2153 // wxPaintDCImpl
2154 // ----------------------------------------------------------------------------
2155
2156 wxPaintDCImpl::wxPaintDCImpl(wxDC *owner, wxWindow* win)
2157 : wxWindowDCImpl(owner, win)
2158 {
2159 // Set the clipping region.to the update region
2160 SetDCClipping((WXRegion)NULL);
2161 }
2162
2163 wxPaintDCImpl::~wxPaintDCImpl()
2164 {
2165 if (m_window)
2166 m_window->ClearUpdateRegion();
2167 SetDCClipping((WXRegion)NULL);
2168 }
2169
2170 // ----------------------------------------------------------------------------
2171 // private functions
2172 // ----------------------------------------------------------------------------
2173
2174 /*
2175 Used when copying between drawables on different (Display*) m_displays. Not
2176 very fast, but better than giving up.
2177 */
2178
2179 static void XCopyRemote(Display *src_display, Display *dest_display,
2180 Drawable src, Drawable dest,
2181 GC destgc,
2182 int srcx, int srcy,
2183 unsigned int w, unsigned int h,
2184 int destx, int desty,
2185 bool more, XImage **cache)
2186 {
2187 XImage *image, *destimage;
2188 Colormap destcm, srccm;
2189 static const int CACHE_SIZE = 256;
2190
2191 unsigned int i, j;
2192 Pixel cachesrc[CACHE_SIZE], cachedest[CACHE_SIZE];
2193 int k, cache_pos, all_cache;
2194
2195 if (!cache || !*cache)
2196 image = XGetImage(src_display, src, srcx, srcy, w, h, AllPlanes, ZPixmap);
2197 else
2198 image = *cache;
2199
2200 destimage = XGetImage(dest_display, dest, destx, desty, w, h, AllPlanes, ZPixmap);
2201
2202 srccm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) src_display);
2203 destcm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dest_display);
2204
2205 cache_pos = 0;
2206 all_cache = False;
2207
2208 for (i = 0; i < w; i++)
2209 for (j = 0; j < h; j++) {
2210 Pixel pixel;
2211 XColor xcol;
2212
2213 pixel = XGetPixel(image, i, j);
2214 for (k = cache_pos; k--; )
2215 if (cachesrc[k] == pixel) {
2216 pixel = cachedest[k];
2217 goto install;
2218 }
2219 if (all_cache)
2220 for (k = CACHE_SIZE; k-- > cache_pos; )
2221 if (cachesrc[k] == pixel) {
2222 pixel = cachedest[k];
2223 goto install;
2224 }
2225
2226 cachesrc[cache_pos] = xcol.pixel = pixel;
2227 XQueryColor(src_display, srccm, &xcol);
2228 if (!XAllocColor(dest_display, destcm, &xcol))
2229 xcol.pixel = 0;
2230 cachedest[cache_pos] = pixel = xcol.pixel;
2231
2232 if (++cache_pos >= CACHE_SIZE) {
2233 cache_pos = 0;
2234 all_cache = true;
2235 }
2236
2237 install:
2238 XPutPixel(destimage, i, j, pixel);
2239 }
2240
2241 XPutImage(dest_display, dest, destgc, destimage, 0, 0, destx, desty, w, h);
2242 XDestroyImage(destimage);
2243
2244 if (more && cache)
2245 *cache = image;
2246 else
2247 XDestroyImage(image);
2248 }
2249
wxWidgets (Impactor)