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added a cast to wxDecodeSurrogate() to fix wxMSW cross-compilation
[wxWidgets.git] / src / motif / dcclient.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/motif/dcclient.cpp
3 // Purpose: wxClientDC class
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 /*
13 About pens, brushes, and the m_autoSetting flag:
14
15 Under X, pens and brushes control some of the same X drawing
16 parameters. Therefore, it is impossible to independently maintain
17 the current pen and the current brush. Also, some settings depend on
18 the current logical function. The m_currentFill, etc. instance
19 variables remember state across the brush and pen.
20
21 Since pens are used more than brushes, the m_autoSetting flag is used to
22 indicate that a brush was recently used, and SetPen must be called to
23 reinstall the current pen's parameters. If m_autoSetting includes 0x2, then the
24 pens color may need to be set based on XOR.
25
26 There is, unfortunately, some confusion between setting the current pen/brush
27 and actually installing the brush/pen parameters. Both functionalies are
28 perform by SetPen and SetBrush. C'est la vie.
29 */
30
31 // ============================================================================
32 // declarations
33 // ============================================================================
34
35 // ----------------------------------------------------------------------------
36 // headers
37 // ----------------------------------------------------------------------------
38
39 // For compilers that support precompilation, includes "wx.h".
40 #include "wx/wxprec.h"
41
42 #include "wx/dcclient.h"
43 #include "wx/dcmemory.h"
44 #include "wx/window.h"
45 #include "wx/app.h"
46 #include "wx/image.h"
47 #include "wx/log.h"
48 #include "wx/math.h"
49
50 #ifdef __VMS__
51 #pragma message disable nosimpint
52 #endif
53 #include <Xm/Xm.h>
54 #ifdef __VMS__
55 #pragma message enable nosimpint
56 #endif
57
58 #include "wx/motif/private.h"
59
60 #ifdef __EMX__
61 #include <float.h> // for M_PI
62 #endif // __EMX__
63
64 #include "bdiag.xbm"
65 #include "fdiag.xbm"
66 #include "cdiag.xbm"
67 #include "horiz.xbm"
68 #include "verti.xbm"
69 #include "cross.xbm"
70
71 static Pixmap bdiag, cdiag, fdiag, cross, horiz, verti;
72
73 // ----------------------------------------------------------------------------
74 // constants
75 // ----------------------------------------------------------------------------
76
77 // Fudge factor (VZ: what??)
78 #define WX_GC_CF 1
79
80 // ----------------------------------------------------------------------------
81 // macros
82 // ----------------------------------------------------------------------------
83
84 IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
85 IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
86 IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
87
88 #ifndef IS_HATCH
89 // IS_HATCH exists for WXWIN_COMPATIBILITY_2_4 only
90 // but wxMotif needs it for its internals here
91 #define IS_HATCH(s) ((s)>=wxFIRST_HATCH && (s)<=wxLAST_HATCH)
92 #endif
93
94 // FIXME: left over after removal of wxDC::GetOptimization()
95 #define GET_OPTIMIZATION false
96
97 // ----------------------------------------------------------------------------
98 // prototypes
99 // ----------------------------------------------------------------------------
100
101 static void XCopyRemote(Display *src_display, Display *dest_display,
102 Drawable src, Drawable dest,
103 GC destgc,
104 int srcx, int srcy,
105 unsigned int w, unsigned int h,
106 int destx, int desty,
107 bool more, XImage **cache);
108
109 // ============================================================================
110 // implementation
111 // ============================================================================
112
113 /*
114 * compare two doubles and return the larger rounded
115 * to the nearest int
116 */
117 static int roundmax(double a, double b)
118 {
119 return (int)((a > b ? a : b) + 0.5);
120 }
121
122 /*
123 * compare two doubles and return the smaller rounded
124 * to the nearest int
125 */
126 static int roundmin(double a, double b)
127 {
128 return (int)((a < b ? a : b) - 0.5);
129 }
130
131
132 // ----------------------------------------------------------------------------
133 // wxWindowDC
134 // ----------------------------------------------------------------------------
135
136 void wxWindowDC::Init()
137 {
138 m_gc = (WXGC) 0;
139 m_gcBacking = (WXGC) 0;
140 m_window = NULL;
141 m_backgroundPixel = -1;
142 m_currentPenWidth = 1;
143 m_currentPenJoin = -1;
144 m_currentPenDashCount = -1;
145 m_currentPenDash = (wxX11Dash*) NULL;
146 m_currentStyle = -1;
147 m_currentFill = -1;
148 m_colour = wxColourDisplay();
149 m_display = (WXDisplay*) NULL;
150 m_pixmap = (WXPixmap) 0;
151 m_autoSetting = 0;
152 m_ok = false;
153 m_clipRegion = (WXRegion) 0;
154 }
155
156 wxWindowDC::wxWindowDC()
157 {
158 Init();
159 }
160
161 wxWindowDC::wxWindowDC( wxWindow *window )
162 {
163 wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC 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 m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
184 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
185 &gcvalues);
186
187 if (m_window->GetBackingPixmap())
188 {
189 m_gcBacking = (WXGC) XCreateGC (display, RootWindow (display,
190 DefaultScreen (display)),
191 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
192 &gcvalues);
193 }
194
195 m_backgroundPixel = (int) gcvalues.background;
196
197 SetBackground(wxBrush(m_window->GetBackgroundColour(), wxSOLID));
198 }
199
200 wxWindowDC::~wxWindowDC()
201 {
202 if (m_gc)
203 XFreeGC ((Display*) m_display, (GC) m_gc);
204 m_gc = (WXGC) 0;
205
206 if (m_gcBacking)
207 XFreeGC ((Display*) m_display, (GC) m_gcBacking);
208 m_gcBacking = (WXGC) 0;
209
210 if (m_clipRegion)
211 XDestroyRegion ((Region) m_clipRegion);
212 m_clipRegion = (WXRegion) 0;
213 }
214
215 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
216 const wxColour & col, int style);
217
218 bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
219 const wxColour& col, int style)
220 {
221 return wxDoFloodFill(this, x, y, col, style);
222 }
223
224 bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
225 {
226 // Generic (and therefore rather inefficient) method.
227 // Could be improved.
228 wxMemoryDC memdc;
229 wxBitmap bitmap(1, 1);
230 memdc.SelectObject(bitmap);
231 memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1);
232 memdc.SelectObject(wxNullBitmap);
233 wxImage image = bitmap.ConvertToImage();
234 col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
235 return true;
236 }
237
238 void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
239 {
240 wxCHECK_RET( Ok(), "invalid dc" );
241
242 int x1d, y1d, x2d, y2d;
243
244 x1d = XLOG2DEV(x1);
245 y1d = YLOG2DEV(y1);
246 x2d = XLOG2DEV(x2);
247 y2d = YLOG2DEV(y2);
248
249 if (m_autoSetting)
250 SetPen (m_pen);
251
252 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, x1d, y1d, x2d, y2d);
253
254 if (m_window && m_window->GetBackingPixmap())
255 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
256 XLOG2DEV_2(x1), YLOG2DEV_2(y1),
257 XLOG2DEV_2(x2), YLOG2DEV_2(y2));
258
259 CalcBoundingBox(x1, y1);
260 CalcBoundingBox(x2, y2);
261 }
262
263 void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
264 {
265 wxCHECK_RET( Ok(), "invalid dc" );
266
267 if (m_autoSetting)
268 SetPen (m_pen);
269
270 int xx = XLOG2DEV (x);
271 int yy = YLOG2DEV (y);
272 int ww, hh;
273 wxDisplaySize (&ww, &hh);
274 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, 0, yy,
275 ww, yy);
276 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xx, 0,
277 xx, hh);
278
279 if (m_window && m_window->GetBackingPixmap())
280 {
281 xx = XLOG2DEV_2 (x);
282 yy = YLOG2DEV_2 (y);
283 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
284 0, yy,
285 ww, yy);
286 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
287 xx, 0,
288 xx, hh);
289 }
290 }
291
292 void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc )
293 {
294 wxCHECK_RET( Ok(), "invalid dc" );
295
296 int xx1 = XLOG2DEV (x1);
297 int yy1 = YLOG2DEV (y1);
298 int xx2 = XLOG2DEV (x2);
299 int yy2 = YLOG2DEV (y2);
300 int xxc = XLOG2DEV (xc);
301 int yyc = YLOG2DEV (yc);
302 int xxc_2 = XLOG2DEV_2 (xc);
303 int yyc_2 = YLOG2DEV_2 (yc);
304
305 wxCoord dx = xx1 - xxc;
306 wxCoord dy = yy1 - yyc;
307 double radius = sqrt ((double)(dx * dx + dy * dy));
308 wxCoord r = (wxCoord) radius;
309
310 double radius1, radius2;
311
312 if (xx1 == xx2 && yy1 == yy2)
313 {
314 radius1 = 0.0;
315 radius2 = 360.0;
316 }
317 else if (radius == 0.0)
318 radius1 = radius2 = 0.0;
319 else
320 {
321 if (xx1 - xxc == 0)
322 if (yy1 - yyc < 0)
323 radius1 = 90.0;
324 else
325 radius1 = -90.0;
326 else
327 radius1 = -atan2 ((double) (yy1 - yyc), (double) (xx1 - xxc)) * 360.0 / (2 * M_PI);
328
329 if (xx2 - xxc == 0)
330 if (yy2 - yyc < 0)
331 radius2 = 90.0;
332 else
333 radius2 = -90.0;
334 else
335 radius2 = -atan2 ((double) (yy2 - yyc), (double) (xx2 - xxc)) * 360.0 / (2 * M_PI);
336 }
337 radius1 *= 64.0;
338 radius2 *= 64.0;
339 int alpha1 = (int) radius1;
340 int alpha2 = (int) (radius2 - radius1);
341 while (alpha2 <= 0)
342 alpha2 += 360 * 64;
343 while (alpha2 > 360 * 64)
344 alpha2 -= 360 * 64;
345
346 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
347 {
348 SetBrush (m_brush);
349 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) (GC) m_gc,
350 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
351
352 if (m_window && m_window->GetBackingPixmap())
353 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
354 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
355
356 }
357
358 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
359 {
360 if (m_autoSetting)
361 SetPen (m_pen);
362 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
363 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
364
365 if (m_window && m_window->GetBackingPixmap())
366 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
367 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
368 }
369 CalcBoundingBox (x1, y1);
370 CalcBoundingBox (x2, y2);
371 }
372
373 void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
374 {
375 wxCHECK_RET( Ok(), "invalid dc" );
376
377 int xd, yd, wd, hd;
378
379 xd = XLOG2DEV(x);
380 yd = YLOG2DEV(y);
381 wd = XLOG2DEVREL(width);
382 hd = YLOG2DEVREL(height);
383
384 if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
385 if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
386 int start = int(sa*64);
387 int end = int(ea*64);
388 if (start<0) start+=360*64;
389 if (end <0) end +=360*64;
390 if (end>start) end-=start;
391 else end+=360*64-start;
392
393 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
394 {
395 m_autoSetting = true; // must be reset
396
397 SetBrush (m_brush);
398 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start, end);
399
400 if (m_window && m_window->GetBackingPixmap())
401 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
402 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
403 }
404
405 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
406 {
407 if (m_autoSetting)
408 SetPen (m_pen);
409 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start,end);
410 if (m_window && m_window->GetBackingPixmap())
411 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
412 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
413 }
414 CalcBoundingBox (x, y);
415 CalcBoundingBox (x + width, y + height);
416 }
417
418 void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
419 {
420 wxCHECK_RET( Ok(), "invalid dc" );
421
422 if (m_pen.Ok() && m_autoSetting)
423 SetPen (m_pen);
424
425 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y));
426 if (m_window && m_window->GetBackingPixmap())
427 XDrawPoint ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, XLOG2DEV_2 (x), YLOG2DEV_2 (y));
428
429 CalcBoundingBox (x, y);
430 }
431
432 void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
433 {
434 wxCHECK_RET( Ok(), "invalid dc" );
435
436 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
437 {
438 if (m_autoSetting)
439 SetPen (m_pen);
440
441 XPoint *xpoints = new XPoint[n];
442 int i;
443
444 for (i = 0; i < n; i++)
445 {
446 xpoints[i].x = (short)XLOG2DEV (points[i].x + xoffset);
447 xpoints[i].y = (short)YLOG2DEV (points[i].y + yoffset);
448 }
449 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints, n, 0);
450
451 if (m_window && m_window->GetBackingPixmap())
452 {
453 for (i = 0; i < n; i++)
454 {
455 xpoints[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
456 xpoints[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
457 }
458 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints, n, 0);
459 }
460 delete[]xpoints;
461 }
462 }
463
464 void wxWindowDC::DoDrawPolygon( int n, wxPoint points[],
465 wxCoord xoffset, wxCoord yoffset, int fillStyle )
466 {
467 wxCHECK_RET( Ok(), "invalid dc" );
468
469 XPoint *xpoints1 = new XPoint[n + 1];
470 XPoint *xpoints2 = new XPoint[n + 1];
471 int i;
472 for (i = 0; i < n; i++)
473 {
474 xpoints1[i].x = (short)XLOG2DEV (points[i].x + xoffset);
475 xpoints1[i].y = (short)YLOG2DEV (points[i].y + yoffset);
476 xpoints2[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
477 xpoints2[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
478 CalcBoundingBox (points[i].x + xoffset, points[i].y + yoffset);
479 }
480
481 // Close figure for XDrawLines (not needed for XFillPolygon)
482 xpoints1[i].x = xpoints1[0].x;
483 xpoints1[i].y = xpoints1[0].y;
484 xpoints2[i].x = xpoints2[0].x;
485 xpoints2[i].y = xpoints2[0].y;
486
487 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
488 {
489 SetBrush (m_brush);
490 XSetFillRule ((Display*) m_display, (GC) m_gc, fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
491 XFillPolygon ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n, Complex, 0);
492 XSetFillRule ((Display*) m_display, (GC) m_gc, EvenOddRule); // default mode
493 if (m_window && m_window->GetBackingPixmap())
494 {
495 XSetFillRule ((Display*) m_display,(GC) m_gcBacking,
496 fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
497 XFillPolygon ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n, Complex, 0);
498 XSetFillRule ((Display*) m_display,(GC) m_gcBacking, EvenOddRule); // default mode
499 }
500 }
501
502 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
503 {
504 if (m_autoSetting)
505 SetPen (m_pen);
506 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n + 1, 0);
507
508 if (m_window && m_window->GetBackingPixmap())
509 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n + 1, 0);
510 }
511
512 delete[]xpoints1;
513 delete[]xpoints2;
514 }
515
516 void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
517 {
518 wxCHECK_RET( Ok(), "invalid dc" );
519
520 int xd, yd, wfd, hfd, wd, hd;
521
522 xd = XLOG2DEV(x);
523 yd = YLOG2DEV(y);
524 wfd = XLOG2DEVREL(width);
525 wd = wfd - WX_GC_CF;
526 hfd = YLOG2DEVREL(height);
527 hd = hfd - WX_GC_CF;
528
529 if (wfd == 0 || hfd == 0) return;
530 if (wd < 0) { wd = - wd; xd = xd - wd; }
531 if (hd < 0) { hd = - hd; yd = yd - hd; }
532
533 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
534 {
535 SetBrush (m_brush);
536 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wfd, hfd);
537
538 if (m_window && m_window->GetBackingPixmap())
539 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
540 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
541 wfd, hfd);
542 }
543
544 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
545 {
546 if (m_autoSetting)
547 SetPen (m_pen);
548 XDrawRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd);
549
550 if (m_window && m_window->GetBackingPixmap())
551 XDrawRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
552 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
553 wd, hd);
554 }
555 CalcBoundingBox (x, y);
556 CalcBoundingBox (x + width, y + height);
557 }
558
559 void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
560 {
561 wxCHECK_RET( Ok(), "invalid dc" );
562
563 // If radius is negative, it's a proportion of the smaller dimension.
564
565 if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
566
567 int xd = XLOG2DEV (x);
568 int yd = YLOG2DEV (y);
569 int rd = XLOG2DEVREL ((long) radius);
570 int wd = XLOG2DEVREL (width) - WX_GC_CF;
571 int hd = YLOG2DEVREL (height) - WX_GC_CF;
572
573 int rw_d = rd * 2;
574 int rh_d = rw_d;
575
576 // If radius is zero use DrawRectangle() instead to avoid
577 // X drawing errors with small radii
578 if (rd == 0)
579 {
580 DrawRectangle( x, y, width, height );
581 return;
582 }
583
584 // Draw nothing if transformed w or h is 0
585 if (wd == 0 || hd == 0) return;
586
587 // CMB: adjust size if outline is drawn otherwise the result is
588 // 1 pixel too wide and high
589 if (m_pen.GetStyle() != wxTRANSPARENT)
590 {
591 wd--;
592 hd--;
593 }
594
595 // CMB: ensure dd is not larger than rectangle otherwise we
596 // get an hour glass shape
597 if (rw_d > wd) rw_d = wd;
598 if (rw_d > hd) rw_d = hd;
599 rd = rw_d / 2;
600
601 // For backing pixmap
602 int xd2 = XLOG2DEV_2 (x);
603 int yd2 = YLOG2DEV_2 (y);
604 int rd2 = XLOG2DEVREL ((long) radius);
605 int wd2 = XLOG2DEVREL (width) ;
606 int hd2 = YLOG2DEVREL (height) ;
607
608 int rw_d2 = rd2 * 2;
609 int rh_d2 = rw_d2;
610
611 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
612 {
613 SetBrush (m_brush);
614
615 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
616 wd - rw_d, hd);
617 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
618 wd, hd - rh_d);
619
620 // Arcs start from 3 o'clock, positive angles anticlockwise
621 // Top-left
622 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
623 rw_d, rh_d, 90 * 64, 90 * 64);
624 // Top-right
625 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
626 // rw_d, rh_d, 0, 90 * 64);
627 rw_d, rh_d, 0, 91 * 64);
628 // Bottom-right
629 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
630 yd + hd - rh_d,
631 // rw_d, rh_d, 270 * 64, 90 * 64);
632 rw_d, rh_d, 269 * 64, 92 * 64);
633 // Bottom-left
634 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
635 rw_d, rh_d, 180 * 64, 90 * 64);
636
637 if (m_window && m_window->GetBackingPixmap())
638 {
639 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
640 xd2 + rd2, yd2, wd2 - rw_d2, hd2);
641 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
642 xd2, yd2 + rd2, wd2, hd2 - rh_d2);
643
644 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
645 xd2, yd2, rw_d2, rh_d2, 90 * 64, 90 * 64);
646 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
647 xd2 + wd2 - rw_d2, yd2,
648 // rw_d2, rh_d2, 0, 90 * 64);
649 rw_d2, rh_d2, 0, 91 * 64);
650 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
651 xd2 + wd2 - rw_d2,
652 yd2 + hd2 - rh_d2,
653 // rw_d2, rh_d2, 270 * 64, 90 * 64);
654 rw_d2, rh_d2, 269 * 64, 92 * 64);
655 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
656 xd2, yd2 + hd2 - rh_d2,
657 rw_d2, rh_d2, 180 * 64, 90 * 64);
658 }
659 }
660
661 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
662 {
663 SetPen (m_pen);
664 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
665 xd + wd - rd + 1, yd);
666 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd + hd,
667 xd + wd - rd, yd + hd);
668
669 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
670 xd, yd + hd - rd);
671 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd, yd + rd,
672 xd + wd, yd + hd - rd + 1);
673 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
674 rw_d, rh_d, 90 * 64, 90 * 64);
675 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
676 // rw_d, rh_d, 0, 90 * 64);
677 rw_d, rh_d, 0, 91 * 64);
678 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
679 yd + hd - rh_d,
680 rw_d, rh_d, 269 * 64, 92 * 64);
681 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
682 rw_d, rh_d, 180 * 64, 90 * 64);
683
684 if (m_window && m_window->GetBackingPixmap())
685 {
686 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
687 xd2 + rd2, yd2,
688 xd2 + wd2 - rd2 + 1, yd2);
689 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
690 xd2 + rd2, yd2 + hd2,
691 xd2 + wd2 - rd2, yd2 + hd2);
692
693 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
694 xd2, yd2 + rd2,
695 xd2, yd2 + hd2 - rd2);
696 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
697 xd2 + wd2, yd2 + rd2,
698 xd2 + wd2, yd2 + hd2 - rd2 + 1);
699 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
700 xd2, yd2,
701 rw_d2, rh_d2, 90 * 64, 90 * 64);
702 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
703 xd2 + wd2 - rw_d2, yd2,
704 // rw_d2, rh_d2, 0, 90 * 64);
705 rw_d2, rh_d2, 0, 91 * 64);
706 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
707 xd2 + wd2 - rw_d2,
708 yd2 + hd2 - rh_d2,
709 rw_d2, rh_d2, 269 * 64, 92 * 64);
710 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
711 xd2, yd2 + hd2 - rh_d2,
712 rw_d2, rh_d2, 180 * 64, 90 * 64);
713 }
714 }
715 CalcBoundingBox (x, y);
716 CalcBoundingBox (x + width, y + height);
717 }
718
719 void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
720 {
721 wxCHECK_RET( Ok(), "invalid dc" );
722
723 // Check for negative width and height
724 if (height < 0)
725 {
726 y = y + height;
727 height = - height ;
728 }
729
730 if (width < 0)
731 {
732 x = x + width;
733 width = - width ;
734 }
735
736 static const int angle = 23040;
737
738 int xd, yd, wd, hd;
739
740 xd = XLOG2DEV(x);
741 yd = YLOG2DEV(y);
742 wd = XLOG2DEVREL(width) ;
743 hd = YLOG2DEVREL(height) ;
744
745 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
746 {
747 SetBrush (m_brush);
748 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
749 if (m_window && m_window->GetBackingPixmap())
750 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
751 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
752 XLOG2DEVREL (width) - WX_GC_CF,
753 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
754 }
755
756 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
757 {
758 if (m_autoSetting)
759 SetPen (m_pen);
760 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
761 if (m_window && m_window->GetBackingPixmap())
762 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
763 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
764 XLOG2DEVREL (width) - WX_GC_CF,
765 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
766 }
767 CalcBoundingBox (x, y);
768 CalcBoundingBox (x + width, y + height);
769
770 }
771
772 bool wxWindowDC::CanDrawBitmap() const
773 {
774 wxCHECK_MSG( Ok(), false, "invalid dc" );
775
776 return true;
777 }
778
779 // TODO: use scaled Blit e.g. as per John Price's implementation
780 // in Contrib/Utilities
781 bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
782 wxCoord width, wxCoord height,
783 wxDC *source, wxCoord xsrc, wxCoord ysrc,
784 int rop, bool useMask,
785 wxCoord xsrcMask, wxCoord ysrcMask )
786 {
787 wxCHECK_MSG( Ok(), false, "invalid dc" );
788
789 wxWindowDC* sourceDC = wxDynamicCast(source, wxWindowDC);
790
791 wxASSERT_MSG( sourceDC, "Blit source DC must be wxWindowDC or derived class." );
792
793 // Be sure that foreground pixels (1) of the Icon will be painted with
794 // foreground colour. [m_textForegroundColour] Background pixels (0)
795 // will be painted with backgound colour (m_textBackgroundColour)
796 // Using ::SetPen is horribly slow, so avoid doing it
797 int oldBackgroundPixel = -1;
798 int oldForegroundPixel = -1;
799
800 if (m_textBackgroundColour.Ok())
801 {
802 oldBackgroundPixel = m_backgroundPixel;
803 int pixel = m_textBackgroundColour.AllocColour(m_display);
804
805 XSetBackground ((Display*) m_display, (GC) m_gc, pixel);
806 if (m_window && m_window->GetBackingPixmap())
807 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
808 pixel);
809 }
810 if (m_textForegroundColour.Ok())
811 {
812 oldForegroundPixel = m_currentColour.GetPixel();
813
814 if( m_textForegroundColour.GetPixel() <= -1 )
815 CalculatePixel( m_textForegroundColour,
816 m_textForegroundColour, true);
817
818 int pixel = m_textForegroundColour.GetPixel();
819 if (pixel > -1)
820 SetForegroundPixelWithLogicalFunction(pixel);
821 }
822
823 // Do bitmap scaling if necessary
824
825 wxBitmap *scaledBitmap = (wxBitmap*) NULL;
826 Pixmap sourcePixmap = (Pixmap) NULL;
827 double scaleX, scaleY;
828 GetUserScale(& scaleX, & scaleY);
829 bool retVal = false;
830
831 /* TODO: use the mask origin when drawing transparently */
832 if (xsrcMask == -1 && ysrcMask == -1)
833 {
834 xsrcMask = xsrc; ysrcMask = ysrc;
835 }
836
837 // Sorry, can't scale masks just yet
838 if (!useMask && (scaleX != 1.0 || scaleY != 1.0) && sourceDC->IsKindOf(CLASSINFO(wxMemoryDC)))
839 {
840 wxMemoryDC* memDC = (wxMemoryDC*) sourceDC;
841 wxBitmap& bitmap = memDC->GetBitmap();
842
843 wxASSERT_MSG( (bitmap.Ok()), "Bad source bitmap in wxWindowDC::Blit");
844
845 wxImage image = bitmap.ConvertToImage();
846 if (!image.Ok())
847 {
848 sourcePixmap = (Pixmap) bitmap.GetDrawable();
849 }
850 else
851 {
852 int scaledW = (int) (bitmap.GetWidth() * scaleX);
853 int scaledH = (int) (bitmap.GetHeight() * scaleY);
854
855 image = image.Scale(scaledW, scaledH);
856 scaledBitmap = new wxBitmap(image);
857 sourcePixmap = (Pixmap) scaledBitmap->GetDrawable();
858 }
859 }
860 else
861 sourcePixmap = (Pixmap) sourceDC->m_pixmap;
862
863 if (m_pixmap && sourcePixmap)
864 {
865 /* MATTHEW: [9] */
866 int orig = m_logicalFunction;
867
868 SetLogicalFunction (rop);
869
870 if (m_display != sourceDC->m_display)
871 {
872 XImage *cache = NULL;
873
874 if (m_window && m_window->GetBackingPixmap())
875 XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display,
876 (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),
877 (GC) m_gcBacking,
878 source->LogicalToDeviceX (xsrc),
879 source->LogicalToDeviceY (ysrc),
880 source->LogicalToDeviceXRel(width),
881 source->LogicalToDeviceYRel(height),
882 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest),
883 True, &cache);
884
885 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
886 {
887 wxMemoryDC *memDC = (wxMemoryDC *)source;
888 wxBitmap& sel = memDC->GetBitmap();
889 if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
890 {
891 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
892 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
893 }
894 }
895
896 XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
897 source->LogicalToDeviceX (xsrc),
898 source->LogicalToDeviceY (ysrc),
899 source->LogicalToDeviceXRel(width),
900 source->LogicalToDeviceYRel(height),
901 XLOG2DEV (xdest), YLOG2DEV (ydest),
902 False, &cache);
903
904 if ( useMask )
905 {
906 if ( m_clipRegion )
907 XSetRegion ((Display*) m_display, (GC) m_gc,
908 (Region) m_clipRegion);
909 else
910 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
911
912 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
913 }
914
915 } else
916 { //XGCValues values;
917 //XGetGCValues((Display*)m_display, (GC)m_gc, GCForeground, &values);
918
919 if (m_window && m_window->GetBackingPixmap())
920 {
921 // +++ MARKUS (mho@comnets.rwth-aachen): error on blitting bitmaps with depth 1
922 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) && ((wxMemoryDC*) source)->GetBitmap().GetDepth() == 1)
923 {
924 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
925 source->LogicalToDeviceX (xsrc),
926 source->LogicalToDeviceY (ysrc),
927 source->LogicalToDeviceXRel(width),
928 source->LogicalToDeviceYRel(height),
929 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest), 1);
930 }
931 else
932 {
933 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
934 source->LogicalToDeviceX (xsrc),
935 source->LogicalToDeviceY (ysrc),
936 source->LogicalToDeviceXRel(width),
937 source->LogicalToDeviceYRel(height),
938 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest));
939 }
940 }
941 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
942 {
943 wxMemoryDC *memDC = (wxMemoryDC *)source;
944 wxBitmap& sel = memDC->GetBitmap();
945 if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
946 {
947 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
948 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
949 }
950 }
951
952 // Check if we're copying from a mono bitmap
953 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) &&
954 ((wxMemoryDC*)source)->GetBitmap().Ok() && (((wxMemoryDC*)source)->GetBitmap().GetDepth () == 1))
955 {
956 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
957 source->LogicalToDeviceX (xsrc),
958 source->LogicalToDeviceY (ysrc),
959 source->LogicalToDeviceXRel(width),
960 source->LogicalToDeviceYRel(height),
961 XLOG2DEV (xdest), YLOG2DEV (ydest), 1);
962 }
963 else
964 {
965 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
966 source->LogicalToDeviceX (xsrc),
967 source->LogicalToDeviceY (ysrc),
968 source->LogicalToDeviceXRel(width),
969 source->LogicalToDeviceYRel(height),
970 XLOG2DEV (xdest), YLOG2DEV (ydest));
971
972 }
973 if ( useMask )
974 {
975 if ( m_clipRegion )
976 XSetRegion ((Display*) m_display, (GC) m_gc,
977 (Region) m_clipRegion);
978 else
979 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
980
981 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
982 }
983
984 } /* Remote/local (Display*) m_display */
985 CalcBoundingBox (xdest, ydest);
986 CalcBoundingBox (xdest + width, ydest + height);
987
988 SetLogicalFunction(orig);
989
990 retVal = true;
991 }
992 if (scaledBitmap) delete scaledBitmap;
993
994 if (oldBackgroundPixel > -1)
995 {
996 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
997 if (m_window && m_window->GetBackingPixmap())
998 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
999 oldBackgroundPixel);
1000 }
1001 if (oldForegroundPixel > -1)
1002 {
1003 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1004 if (m_window && m_window->GetBackingPixmap())
1005 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1006 oldForegroundPixel);
1007 }
1008
1009 return retVal;
1010 }
1011
1012 void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
1013 {
1014 wxCHECK_RET( Ok(), "invalid dc" );
1015
1016 // Since X draws from the baseline of the text, must add the text height
1017 int cx = 0;
1018 int cy = 0;
1019 int ascent = 0;
1020 int slen = text.length();
1021
1022 // Set FillStyle, otherwise X will use current stipple!
1023 XGCValues gcV, gcBackingV;
1024
1025 XGetGCValues ((Display*) m_display, (GC)m_gc, GCFillStyle, &gcV);
1026 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1027 if (m_window && m_window->GetBackingPixmap())
1028 {
1029 XGetGCValues ((Display*) m_display, (GC)m_gcBacking, GCFillStyle,
1030 &gcBackingV );
1031 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking, FillSolid);
1032 }
1033
1034 if (m_font.Ok())
1035 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1036 text, &cx, &cy, &ascent, NULL);
1037
1038 // First draw a rectangle representing the text background, if a text
1039 // background is specified
1040 if (m_textBackgroundColour.Ok () && (m_backgroundMode != wxTRANSPARENT))
1041 {
1042 wxColour oldPenColour = m_currentColour;
1043 m_currentColour = m_textBackgroundColour;
1044 bool sameColour = (oldPenColour.Ok () && m_textBackgroundColour.Ok () &&
1045 (oldPenColour.Red () == m_textBackgroundColour.Red ()) &&
1046 (oldPenColour.Blue () == m_textBackgroundColour.Blue ()) &&
1047 (oldPenColour.Green () == m_textBackgroundColour.Green ()));
1048
1049 // This separation of the big && test required for gcc2.7/HP UX 9.02
1050 // or pixel value can be corrupted!
1051 sameColour = (sameColour &&
1052 (oldPenColour.GetPixel() == m_textBackgroundColour.GetPixel()));
1053
1054 if (!sameColour || !GET_OPTIMIZATION)
1055 {
1056 int pixel = m_textBackgroundColour.AllocColour(m_display);
1057 m_currentColour = m_textBackgroundColour;
1058
1059 // Set the GC to the required colour
1060 if (pixel > -1)
1061 {
1062 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1063 if (m_window && m_window->GetBackingPixmap())
1064 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1065 }
1066 }
1067 else
1068 m_textBackgroundColour = oldPenColour ;
1069
1070 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y), cx, cy);
1071 if (m_window && m_window->GetBackingPixmap())
1072 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1073 XLOG2DEV_2 (x), YLOG2DEV_2 (y), cx, cy);
1074 }
1075
1076 // Now set the text foreground and draw the text
1077 if (m_textForegroundColour.Ok ())
1078 {
1079 wxColour oldPenColour = m_currentColour;
1080 m_currentColour = m_textForegroundColour;
1081 bool sameColour = (oldPenColour.Ok () && m_currentColour.Ok () &&
1082 (oldPenColour.Red () == m_currentColour.Red ()) &&
1083 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1084 (oldPenColour.Green () == m_currentColour.Green ()) &&
1085 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1086
1087 if (!sameColour || !GET_OPTIMIZATION)
1088 {
1089 int pixel = CalculatePixel(m_textForegroundColour,
1090 m_currentColour, false);
1091
1092 // Set the GC to the required colour
1093 if (pixel > -1)
1094 {
1095 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1096 if (m_window && m_window->GetBackingPixmap())
1097 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1098 }
1099 }
1100 else
1101 m_textForegroundColour = oldPenColour;
1102 }
1103
1104 // We need to add the ascent, not the whole height, since X draws at the
1105 // point above the descender.
1106 #if 0
1107 if (use16)
1108 XDrawString16((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent,
1109 (XChar2b *)(char*) (const char*) text, slen);
1110 else
1111 #endif // 0
1112 #if wxMOTIF_NEW_FONT_HANDLING
1113 XFontSet fset = (XFontSet) m_font.GetFontSet (m_userScaleY * m_logicalScaleY, m_display);
1114 XmbDrawString((Display*) m_display, (Pixmap) m_pixmap, fset, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
1115 #else
1116 XDrawString((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
1117 #endif
1118
1119 if (m_window && m_window->GetBackingPixmap()) {
1120 #if 0
1121 if (use16)
1122 XDrawString16((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1123 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1124 (XChar2b *)(char*) (const char*) text, slen);
1125 else
1126 #endif // 0
1127 #if wxMOTIF_NEW_FONT_HANDLING
1128 XmbDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), fset, (GC) m_gcBacking,
1129 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1130 wxConstCast(text.c_str(), char), slen);
1131 #else
1132 XDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1133 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1134 wxConstCast(text.c_str(), char), slen);
1135 #endif
1136 }
1137
1138 // restore fill style
1139 XSetFillStyle ((Display*) m_display, (GC) m_gc, gcV.fill_style);
1140 if (m_window && m_window->GetBackingPixmap())
1141 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking,
1142 gcBackingV.fill_style);
1143
1144 wxCoord w, h;
1145 GetTextExtent (text, &w, &h);
1146 CalcBoundingBox (x + w, y + h);
1147 CalcBoundingBox (x, y);
1148 }
1149
1150 void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
1151 double angle )
1152 {
1153 if (angle == 0.0)
1154 {
1155 DrawText(text, x, y);
1156 return;
1157 }
1158
1159 wxCHECK_RET( Ok(), "invalid dc" );
1160
1161 int oldBackgroundPixel = -1;
1162 int oldForegroundPixel = -1;
1163 int foregroundPixel = -1;
1164 int backgroundPixel = -1;
1165
1166 if (m_textBackgroundColour.Ok())
1167 {
1168 oldBackgroundPixel = m_backgroundPixel;
1169 backgroundPixel = m_textBackgroundColour.AllocColour(m_display);
1170 }
1171 if (m_textForegroundColour.Ok())
1172 {
1173 oldForegroundPixel = m_currentColour.GetPixel();
1174
1175 if( m_textForegroundColour.GetPixel() <= -1 )
1176 CalculatePixel( m_textForegroundColour,
1177 m_textForegroundColour, true);
1178
1179 foregroundPixel = m_textForegroundColour.GetPixel();
1180 }
1181
1182 // Since X draws from the baseline of the text, must add the text height
1183 int cx = 0;
1184 int cy = 0;
1185 int ascent = 0;
1186
1187 if (m_font.Ok())
1188 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1189 text, &cx, &cy, &ascent, NULL);
1190
1191 wxBitmap src(cx, cy);
1192 wxMemoryDC dc;
1193 dc.SelectObject(src);
1194 dc.SetFont(GetFont());
1195 dc.SetBackground(*wxWHITE_BRUSH);
1196 dc.SetBrush(*wxBLACK_BRUSH);
1197 dc.Clear();
1198 dc.DrawText(text, 0, 0);
1199 dc.SetFont(wxNullFont);
1200
1201 // Calculate the size of the rotated bounding box.
1202 double dx = cos(angle / 180.0 * M_PI);
1203 double dy = sin(angle / 180.0 * M_PI);
1204 double x4 = cy * dy;
1205 double y4 = cy * dx;
1206 double x3 = cx * dx;
1207 double y3 = -cx * dy;
1208 double x2 = x3 + x4;
1209 double y2 = y3 + y4;
1210 double x1 = x;
1211 double y1 = y;
1212
1213 // Create image from the source bitmap after writing the text into it.
1214 wxImage image = src.ConvertToImage();
1215
1216 int minx = roundmin(0, roundmin(x4, roundmin(x2, x3)));
1217 int miny = roundmin(0, roundmin(y4, roundmin(y2, y3)));
1218 int maxx = roundmax(0, roundmax(x4, roundmax(x2, x3)));
1219 int maxy = roundmax(0, roundmax(y4, roundmax(y2, y3)));
1220
1221 bool lastFore = false, lastBack = false;
1222
1223 // This rotates counterclockwise around the top left corner.
1224 for (int rx = minx; rx < maxx; rx++)
1225 {
1226 for (int ry = miny; ry < maxy; ry++)
1227 {
1228 // transform dest coords to source coords
1229 int sx = (int) (rx * dx - ry * dy + 0.5);
1230 int sy = - (int) (-ry * dx - rx * dy + 0.5);
1231 if (sx >= 0 && sx < cx && sy >= 0 && sy < cy)
1232 {
1233 bool textPixel = image.GetRed(sx, sy) == 0;
1234
1235 if (!textPixel && m_backgroundMode != wxSOLID)
1236 continue;
1237
1238 wxCoord ox = (wxCoord) (x1 + rx),
1239 oy = (wxCoord) (y1 + ry);
1240 // draw black pixels, ignore white ones (i.e. transparent b/g)
1241 if (textPixel && !lastFore)
1242 {
1243 XSetForeground ((Display*) m_display, (GC) m_gc,
1244 foregroundPixel);
1245 lastFore = true;
1246 lastBack = false;
1247 }
1248 else if (!textPixel && !lastBack)
1249 {
1250 XSetForeground ((Display*) m_display, (GC) m_gc,
1251 backgroundPixel);
1252 lastFore = false;
1253 lastBack = true;
1254 }
1255
1256 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap,
1257 (GC) m_gc, XLOG2DEV (ox), YLOG2DEV (oy));
1258 if (m_window && m_window->GetBackingPixmap())
1259 XDrawPoint ((Display*) m_display,
1260 (Pixmap) m_window->GetBackingPixmap(),
1261 (GC) m_gcBacking,
1262 XLOG2DEV_2 (ox), YLOG2DEV_2 (oy));
1263 }
1264 }
1265 }
1266
1267 if (oldBackgroundPixel > -1)
1268 {
1269 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
1270 if (m_window && m_window->GetBackingPixmap())
1271 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1272 oldBackgroundPixel);
1273 }
1274 if (oldForegroundPixel > -1)
1275 {
1276 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1277 if (m_window && m_window->GetBackingPixmap())
1278 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1279 oldForegroundPixel);
1280 }
1281
1282 CalcBoundingBox (minx, miny);
1283 CalcBoundingBox (maxx, maxy);
1284 }
1285
1286 bool wxWindowDC::CanGetTextExtent() const
1287 {
1288 return true;
1289 }
1290
1291 void wxWindowDC::DoGetTextExtent( const wxString &string, wxCoord *width, wxCoord *height,
1292 wxCoord *descent, wxCoord *externalLeading,
1293 wxFont *font ) const
1294 {
1295 wxCHECK_RET( Ok(), "invalid dc" );
1296
1297 const wxFont* theFont = font ? font : &m_font;
1298
1299 if (!theFont->Ok())
1300 {
1301 // TODO: this should be an error log function
1302 wxFAIL_MSG("set a valid font before calling GetTextExtent!");
1303
1304 if (width) *width = -1;
1305 if (height) *height = -1;
1306 return;
1307 }
1308
1309 wxGetTextExtent(m_display, *theFont, m_userScaleY * m_logicalScaleY,
1310 string, width, height, NULL, descent);
1311
1312 if (width) *width = XDEV2LOGREL (*width);
1313 if (height) *height = YDEV2LOGREL (*height);
1314 if (externalLeading)
1315 *externalLeading = 0;
1316 }
1317
1318 wxCoord wxWindowDC::GetCharWidth() const
1319 {
1320 wxCHECK_MSG( Ok(), 0, "invalid dc" );
1321 wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
1322
1323 int width;
1324
1325 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1326 "x", &width, NULL, NULL, NULL);
1327
1328 return XDEV2LOGREL(width);
1329 }
1330
1331 wxCoord wxWindowDC::GetCharHeight() const
1332 {
1333 wxCHECK_MSG( Ok(), 0, "invalid dc" );
1334 wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
1335
1336 int height;
1337
1338 wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
1339 "x", NULL, &height, NULL, NULL);
1340
1341 return XDEV2LOGREL(height);
1342 }
1343
1344 void wxWindowDC::DoGetSize( int *width, int *height ) const
1345 {
1346 int w = 0, h = 0;
1347
1348 if( m_window )
1349 {
1350 if( m_window->GetBackingPixmap() )
1351 {
1352 w = m_window->GetPixmapWidth();
1353 h = m_window->GetPixmapHeight();
1354 }
1355 else
1356 m_window->GetSize( &w, &h );
1357 }
1358
1359 if( width ) *width = w;
1360 if( height ) *height = h;
1361 }
1362
1363 void wxWindowDC::Clear()
1364 {
1365 wxCHECK_RET( Ok(), "invalid dc" );
1366
1367 wxRect rect( GetSize() );
1368 Clear( rect );
1369 }
1370
1371 void wxWindowDC::Clear(const wxRect& rect)
1372 {
1373 wxCHECK_RET( Ok(), "invalid dc" );
1374
1375 int x = rect.x; int y = rect.y;
1376 int w = rect.width; int h = rect.height;
1377
1378 wxBrush saveBrush = m_brush;
1379 SetBrush (m_backgroundBrush);
1380
1381 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
1382 x, y, w, h);
1383
1384 if (m_window && m_window->GetBackingPixmap())
1385 XFillRectangle ((Display*) m_display,
1386 (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1387 x, y, w, h);
1388
1389 m_brush = saveBrush;
1390 }
1391
1392 void wxWindowDC::SetFont( const wxFont &font )
1393 {
1394 wxCHECK_RET( Ok(), "invalid dc" );
1395
1396 m_font = font;
1397
1398 if (!m_font.Ok())
1399 {
1400 return;
1401 }
1402
1403 #if !wxMOTIF_NEW_FONT_HANDLING
1404 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1405
1406 Font fontId = ((XFontStruct*)pFontStruct)->fid;
1407 XSetFont ((Display*) m_display, (GC) m_gc, fontId);
1408
1409 if (m_window && m_window->GetBackingPixmap())
1410 XSetFont ((Display*) m_display,(GC) m_gcBacking, fontId);
1411 #endif
1412 }
1413
1414 void wxWindowDC::SetForegroundPixelWithLogicalFunction(int pixel)
1415 {
1416 if (m_logicalFunction == wxXOR)
1417 {
1418 XGCValues values;
1419 XGetGCValues ((Display*) m_display, (GC) m_gc, GCBackground, &values);
1420 XSetForeground ((Display*) m_display, (GC) m_gc,
1421 pixel ^ values.background);
1422 if (m_window && m_window->GetBackingPixmap())
1423 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1424 pixel ^ values.background);
1425 }
1426 else
1427 {
1428 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1429 if (m_window && m_window->GetBackingPixmap())
1430 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1431 }
1432 }
1433
1434 int wxWindowDC::CalculatePixel(wxColour& colour, wxColour& curCol,
1435 bool roundToWhite) const
1436 {
1437 const unsigned char wp = (unsigned char)255;
1438
1439 int pixel = -1;
1440 if(!m_colour) // Mono display
1441 {
1442 unsigned char red = colour.Red ();
1443 unsigned char blue = colour.Blue ();
1444 unsigned char green = colour.Green ();
1445 // white
1446 if((red == wp && blue == wp && green == wp) ||
1447 // not black and roundToWhite was specified
1448 ((red != 0 || blue != 0 || green != 0) && roundToWhite))
1449 {
1450 curCol = *wxWHITE;
1451 pixel = (int)WhitePixel((Display*) m_display,
1452 DefaultScreen((Display*) m_display));
1453 curCol.SetPixel(pixel);
1454 colour.SetPixel(pixel);
1455 }
1456 else
1457 {
1458 curCol = *wxBLACK;
1459 pixel = (int)BlackPixel((Display*) m_display,
1460 DefaultScreen((Display*) m_display));
1461 curCol.SetPixel(pixel);
1462 colour.SetPixel(pixel);
1463 }
1464 }
1465 else
1466 {
1467 curCol = colour;
1468 pixel = colour.AllocColour((Display*) m_display);
1469 curCol.SetPixel(pixel);
1470 }
1471
1472 return pixel;
1473 }
1474
1475 void wxWindowDC::SetPen( const wxPen &pen )
1476 {
1477 wxCHECK_RET( Ok(), "invalid dc" );
1478
1479 m_pen = pen;
1480 if (!m_pen.Ok())
1481 return;
1482
1483 wxBitmap oldStipple = m_currentStipple;
1484 int oldStyle = m_currentStyle;
1485 int oldFill = m_currentFill;
1486 int old_pen_width = m_currentPenWidth;
1487 int old_pen_join = m_currentPenJoin;
1488 int old_pen_cap = m_currentPenCap;
1489 int old_pen_nb_dash = m_currentPenDashCount;
1490 wxX11Dash *old_pen_dash = m_currentPenDash;
1491
1492 wxColour oldPenColour = m_currentColour;
1493 m_currentColour = m_pen.GetColour ();
1494 m_currentStyle = m_pen.GetStyle ();
1495 m_currentFill = m_pen.GetStyle (); // TODO?
1496 m_currentPenWidth = m_pen.GetWidth ();
1497 m_currentPenJoin = m_pen.GetJoin ();
1498 m_currentPenCap = m_pen.GetCap ();
1499 m_currentPenDashCount = m_pen.GetDashCount();
1500 m_currentPenDash = (wxX11Dash*)m_pen.GetDash();
1501
1502 if (m_currentStyle == wxSTIPPLE)
1503 m_currentStipple = * m_pen.GetStipple ();
1504
1505 bool sameStyle = (oldStyle == m_currentStyle &&
1506 oldFill == m_currentFill &&
1507 old_pen_join == m_currentPenJoin &&
1508 old_pen_cap == m_currentPenCap &&
1509 old_pen_nb_dash == m_currentPenDashCount &&
1510 old_pen_dash == m_currentPenDash &&
1511 old_pen_width == m_currentPenWidth);
1512
1513 bool sameColour = (oldPenColour.Ok () &&
1514 (oldPenColour.Red () == m_currentColour.Red ()) &&
1515 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1516 (oldPenColour.Green () == m_currentColour.Green ()) &&
1517 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1518
1519 if (!sameStyle || !GET_OPTIMIZATION)
1520 {
1521 int scaled_width = (int) XLOG2DEVREL (m_pen.GetWidth ());
1522 if (scaled_width < 0)
1523 scaled_width = 0;
1524
1525 int style;
1526 int join;
1527 int cap;
1528 static const wxX11Dash dotted[] = {2, 5};
1529 static const wxX11Dash short_dashed[] = {4, 4};
1530 static const wxX11Dash long_dashed[] = {4, 8};
1531 static const wxX11Dash dotted_dashed[] = {6, 6, 2, 6};
1532
1533 // We express dash pattern in pen width unit, so we are
1534 // independent of zoom factor and so on...
1535 int req_nb_dash;
1536 const wxX11Dash *req_dash;
1537
1538 switch (m_pen.GetStyle ())
1539 {
1540 case wxUSER_DASH:
1541 req_nb_dash = m_currentPenDashCount;
1542 req_dash = m_currentPenDash;
1543 style = LineOnOffDash;
1544 break;
1545 case wxDOT:
1546 req_nb_dash = 2;
1547 req_dash = dotted;
1548 style = LineOnOffDash;
1549 break;
1550 case wxSHORT_DASH:
1551 req_nb_dash = 2;
1552 req_dash = short_dashed;
1553 style = LineOnOffDash;
1554 break;
1555 case wxLONG_DASH:
1556 req_nb_dash = 2;
1557 req_dash = long_dashed;
1558 style = LineOnOffDash;
1559 break;
1560 case wxDOT_DASH:
1561 req_nb_dash = 4;
1562 req_dash = dotted_dashed;
1563 style = LineOnOffDash;
1564 break;
1565 case wxSTIPPLE:
1566 case wxSOLID:
1567 case wxTRANSPARENT:
1568 default:
1569 style = LineSolid;
1570 req_dash = (wxX11Dash*)NULL;
1571 req_nb_dash = 0;
1572 }
1573
1574 if (req_dash && req_nb_dash)
1575 {
1576 wxX11Dash *real_req_dash = new wxX11Dash[req_nb_dash];
1577 if (real_req_dash)
1578 {
1579 int factor = scaled_width == 0 ? 1 : scaled_width;
1580 for (int i = 0; i < req_nb_dash; i++)
1581 real_req_dash[i] = (wxX11Dash)(req_dash[i] * factor);
1582 XSetDashes ((Display*) m_display, (GC) m_gc, 0, real_req_dash, req_nb_dash);
1583
1584 if (m_window && m_window->GetBackingPixmap())
1585 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, real_req_dash, req_nb_dash);
1586 delete[]real_req_dash;
1587 }
1588 else
1589 {
1590 // No Memory. We use non-scaled dash pattern...
1591 XSetDashes ((Display*) m_display, (GC) m_gc, 0, req_dash, req_nb_dash);
1592
1593 if (m_window && m_window->GetBackingPixmap())
1594 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, req_dash, req_nb_dash);
1595 }
1596 }
1597
1598 switch (m_pen.GetCap ())
1599 {
1600 case wxCAP_PROJECTING:
1601 cap = CapProjecting;
1602 break;
1603 case wxCAP_BUTT:
1604 cap = CapButt;
1605 break;
1606 case wxCAP_ROUND:
1607 default:
1608 cap = (scaled_width <= 1) ? CapNotLast : CapRound;
1609 break;
1610 }
1611
1612 switch (m_pen.GetJoin ())
1613 {
1614 case wxJOIN_BEVEL:
1615 join = JoinBevel;
1616 break;
1617 case wxJOIN_MITER:
1618 join = JoinMiter;
1619 break;
1620 case wxJOIN_ROUND:
1621 default:
1622 join = JoinRound;
1623 break;
1624 }
1625
1626 XSetLineAttributes ((Display*) m_display, (GC) m_gc, scaled_width, style, cap, join);
1627
1628 if (m_window && m_window->GetBackingPixmap())
1629 XSetLineAttributes ((Display*) m_display,(GC) m_gcBacking, scaled_width, style, cap, join);
1630 }
1631
1632 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1633 {
1634 Pixmap myStipple;
1635
1636 oldStipple = wxNullBitmap; // For later reset!!
1637
1638 switch (m_currentFill)
1639 {
1640 case wxBDIAGONAL_HATCH:
1641 if (bdiag == (Pixmap) 0)
1642 bdiag = XCreateBitmapFromData ((Display*) m_display,
1643 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1644 bdiag_bits, bdiag_width, bdiag_height);
1645 myStipple = bdiag;
1646 break;
1647 case wxFDIAGONAL_HATCH:
1648 if (fdiag == (Pixmap) 0)
1649 fdiag = XCreateBitmapFromData ((Display*) m_display,
1650 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1651 fdiag_bits, fdiag_width, fdiag_height);
1652 myStipple = fdiag;
1653 break;
1654 case wxCROSS_HATCH:
1655 if (cross == (Pixmap) 0)
1656 cross = XCreateBitmapFromData ((Display*) m_display,
1657 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1658 cross_bits, cross_width, cross_height);
1659 myStipple = cross;
1660 break;
1661 case wxHORIZONTAL_HATCH:
1662 if (horiz == (Pixmap) 0)
1663 horiz = XCreateBitmapFromData ((Display*) m_display,
1664 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1665 horiz_bits, horiz_width, horiz_height);
1666 myStipple = horiz;
1667 break;
1668 case wxVERTICAL_HATCH:
1669 if (verti == (Pixmap) 0)
1670 verti = XCreateBitmapFromData ((Display*) m_display,
1671 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1672 verti_bits, verti_width, verti_height);
1673 myStipple = verti;
1674 break;
1675 case wxCROSSDIAG_HATCH:
1676 default:
1677 if (cdiag == (Pixmap) 0)
1678 cdiag = XCreateBitmapFromData ((Display*) m_display,
1679 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1680 cdiag_bits, cdiag_width, cdiag_height);
1681 myStipple = cdiag;
1682 break;
1683 }
1684 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1685
1686 if (m_window && m_window->GetBackingPixmap())
1687 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1688 }
1689 else if (m_currentStipple.Ok()
1690 && ((m_currentStipple != oldStipple) || !GET_OPTIMIZATION))
1691 {
1692 XSetStipple ((Display*) m_display, (GC) m_gc, (Pixmap) m_currentStipple.GetDrawable());
1693
1694 if (m_window && m_window->GetBackingPixmap())
1695 XSetStipple ((Display*) m_display,(GC) m_gcBacking, (Pixmap) m_currentStipple.GetDrawable());
1696 }
1697
1698 if ((m_currentFill != oldFill) || !GET_OPTIMIZATION)
1699 {
1700 int fill_style;
1701
1702 if (m_currentFill == wxSTIPPLE)
1703 fill_style = FillStippled;
1704 else if (IS_HATCH (m_currentFill))
1705 fill_style = FillStippled;
1706 else
1707 fill_style = FillSolid;
1708 XSetFillStyle ((Display*) m_display, (GC) m_gc, fill_style);
1709 if (m_window && m_window->GetBackingPixmap())
1710 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, fill_style);
1711 }
1712
1713 // must test m_logicalFunction, because it involves background!
1714 if (!sameColour || !GET_OPTIMIZATION
1715 || ((m_logicalFunction == wxXOR) || (m_autoSetting & 0x2)))
1716 {
1717 int pixel = -1;
1718 if (m_pen.GetStyle () == wxTRANSPARENT)
1719 pixel = m_backgroundPixel;
1720 else
1721 {
1722 pixel = CalculatePixel(m_pen.GetColour(), m_currentColour, false);
1723 }
1724
1725 // Finally, set the GC to the required colour
1726 if (pixel > -1)
1727 SetForegroundPixelWithLogicalFunction(pixel);
1728 }
1729 else
1730 m_pen.GetColour().SetPixel(oldPenColour.GetPixel());
1731
1732 m_autoSetting = 0;
1733 }
1734
1735 void wxWindowDC::SetBrush( const wxBrush &brush )
1736 {
1737 wxCHECK_RET( Ok(), "invalid dc" );
1738
1739 m_brush = brush;
1740
1741 if (!m_brush.Ok() || m_brush.GetStyle () == wxTRANSPARENT)
1742 return;
1743
1744 int oldFill = m_currentFill;
1745 wxBitmap oldStipple = m_currentStipple;
1746
1747 m_autoSetting |= 0x1;
1748
1749 m_currentFill = m_brush.GetStyle ();
1750 if (m_currentFill == wxSTIPPLE)
1751 m_currentStipple = * m_brush.GetStipple ();
1752
1753 wxColour oldBrushColour(m_currentColour);
1754 m_currentColour = m_brush.GetColour ();
1755
1756 bool sameColour = (oldBrushColour.Ok () &&
1757 (oldBrushColour.Red () == m_currentColour.Red ()) &&
1758 (oldBrushColour.Blue () == m_currentColour.Blue ()) &&
1759 (oldBrushColour.Green () == m_currentColour.Green ()) &&
1760 (oldBrushColour.GetPixel() == m_currentColour.GetPixel()));
1761
1762 int stippleDepth = -1;
1763
1764 if ((oldFill != m_brush.GetStyle ()) || !GET_OPTIMIZATION)
1765 {
1766 switch (brush.GetStyle ())
1767 {
1768 case wxTRANSPARENT:
1769 break;
1770 case wxSTIPPLE:
1771 stippleDepth = m_currentStipple.GetDepth();
1772 // fall through!
1773 case wxBDIAGONAL_HATCH:
1774 case wxCROSSDIAG_HATCH:
1775 case wxFDIAGONAL_HATCH:
1776 case wxCROSS_HATCH:
1777 case wxHORIZONTAL_HATCH:
1778 case wxVERTICAL_HATCH:
1779 {
1780 if (stippleDepth == -1) stippleDepth = 1;
1781
1782 // Chris Breeze 23/07/97: use background mode to
1783 // determine whether fill style should be solid or
1784 // transparent
1785 int style = stippleDepth == 1 ?
1786 (m_backgroundMode == wxSOLID ?
1787 FillOpaqueStippled : FillStippled) :
1788 FillTiled;
1789 XSetFillStyle ((Display*) m_display, (GC) m_gc, style);
1790 if (m_window && m_window->GetBackingPixmap())
1791 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, style);
1792 }
1793 break;
1794 case wxSOLID:
1795 default:
1796 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1797 if (m_window && m_window->GetBackingPixmap())
1798 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking,
1799 FillSolid);
1800 }
1801 }
1802
1803 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1804 {
1805 Pixmap myStipple;
1806
1807 switch (m_currentFill)
1808 {
1809 case wxBDIAGONAL_HATCH:
1810 if (bdiag == (Pixmap) 0)
1811 bdiag = XCreateBitmapFromData ((Display*) m_display,
1812 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1813 bdiag_bits, bdiag_width, bdiag_height);
1814 myStipple = bdiag;
1815 break;
1816 case wxFDIAGONAL_HATCH:
1817 if (fdiag == (Pixmap) 0)
1818 fdiag = XCreateBitmapFromData ((Display*) m_display,
1819 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1820 fdiag_bits, fdiag_width, fdiag_height);
1821 myStipple = fdiag;
1822 break;
1823 case wxCROSS_HATCH:
1824 if (cross == (Pixmap) 0)
1825 cross = XCreateBitmapFromData ((Display*) m_display,
1826 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1827 cross_bits, cross_width, cross_height);
1828 myStipple = cross;
1829 break;
1830 case wxHORIZONTAL_HATCH:
1831 if (horiz == (Pixmap) 0)
1832 horiz = XCreateBitmapFromData ((Display*) m_display,
1833 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1834 horiz_bits, horiz_width, horiz_height);
1835 myStipple = horiz;
1836 break;
1837 case wxVERTICAL_HATCH:
1838 if (verti == (Pixmap) 0)
1839 verti = XCreateBitmapFromData ((Display*) m_display,
1840 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1841 verti_bits, verti_width, verti_height);
1842 myStipple = verti;
1843 break;
1844 case wxCROSSDIAG_HATCH:
1845 default:
1846 if (cdiag == (Pixmap) 0)
1847 cdiag = XCreateBitmapFromData ((Display*) m_display,
1848 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1849 cdiag_bits, cdiag_width, cdiag_height);
1850 myStipple = cdiag;
1851 break;
1852 }
1853 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1854
1855 if (m_window && m_window->GetBackingPixmap())
1856 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1857 }
1858 // X can forget the stipple value when resizing a window (apparently)
1859 // so always set the stipple.
1860 else if (m_currentFill != wxSOLID && m_currentFill != wxTRANSPARENT &&
1861 m_currentStipple.Ok()) // && m_currentStipple != oldStipple)
1862 {
1863 if (m_currentStipple.GetDepth() == 1)
1864 {
1865 XSetStipple ((Display*) m_display, (GC) m_gc,
1866 (Pixmap) m_currentStipple.GetDrawable());
1867 if (m_window && m_window->GetBackingPixmap())
1868 XSetStipple ((Display*) m_display,(GC) m_gcBacking,
1869 (Pixmap) m_currentStipple.GetDrawable());
1870 }
1871 else
1872 {
1873 XSetTile ((Display*) m_display, (GC) m_gc,
1874 (Pixmap) m_currentStipple.GetDrawable());
1875 if (m_window && m_window->GetBackingPixmap())
1876 XSetTile ((Display*) m_display,(GC) m_gcBacking,
1877 (Pixmap) m_currentStipple.GetDrawable());
1878 }
1879 }
1880
1881 // must test m_logicalFunction, because it involves background!
1882 if (!sameColour || !GET_OPTIMIZATION || m_logicalFunction == wxXOR)
1883 {
1884 int pixel = CalculatePixel(m_brush.GetColour(), m_currentColour, true);
1885
1886 if (pixel > -1)
1887 SetForegroundPixelWithLogicalFunction(pixel);
1888 }
1889 else
1890 m_brush.GetColour().SetPixel(oldBrushColour.GetPixel());
1891 }
1892
1893 void wxWindowDC::SetBackground( const wxBrush &brush )
1894 {
1895 wxCHECK_RET( Ok(), "invalid dc" );
1896
1897 m_backgroundBrush = brush;
1898
1899 if (!m_backgroundBrush.Ok())
1900 return;
1901
1902 m_backgroundPixel = m_backgroundBrush.GetColour().AllocColour(m_display);
1903
1904 // Necessary for ::DrawIcon, which use fg/bg pixel or the GC.
1905 // And Blit,... (Any fct that use XCopyPlane, in fact.)
1906 XSetBackground ((Display*) m_display, (GC) m_gc, m_backgroundPixel);
1907 if (m_window && m_window->GetBackingPixmap())
1908 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1909 m_backgroundPixel);
1910 }
1911
1912 void wxWindowDC::SetLogicalFunction( int function )
1913 {
1914 wxCHECK_RET( Ok(), "invalid dc" );
1915
1916 int x_function;
1917
1918 /* MATTHEW: [9] */
1919 if (m_logicalFunction == function)
1920 return;
1921
1922 switch (function)
1923 {
1924 case wxCLEAR:
1925 x_function = GXclear;
1926 break;
1927 case wxXOR:
1928 x_function = GXxor;
1929 break;
1930 case wxINVERT:
1931 x_function = GXinvert;
1932 break;
1933 case wxOR_REVERSE:
1934 x_function = GXorReverse;
1935 break;
1936 case wxAND_REVERSE:
1937 x_function = GXandReverse;
1938 break;
1939 case wxAND:
1940 x_function = GXand;
1941 break;
1942 case wxOR:
1943 x_function = GXor;
1944 break;
1945 case wxAND_INVERT:
1946 x_function = GXandInverted;
1947 break;
1948 case wxNO_OP:
1949 x_function = GXnoop;
1950 break;
1951 case wxNOR:
1952 x_function = GXnor;
1953 break;
1954 case wxEQUIV:
1955 x_function = GXequiv;
1956 break;
1957 case wxSRC_INVERT:
1958 x_function = GXcopyInverted;
1959 break;
1960 case wxOR_INVERT:
1961 x_function = GXorInverted;
1962 break;
1963 case wxNAND:
1964 x_function = GXnand;
1965 break;
1966 case wxSET:
1967 x_function = GXset;
1968 break;
1969 case wxCOPY:
1970 default:
1971 x_function = GXcopy;
1972 break;
1973 }
1974
1975 XSetFunction((Display*) m_display, (GC) m_gc, x_function);
1976 if (m_window && m_window->GetBackingPixmap())
1977 XSetFunction((Display*) m_display, (GC) m_gcBacking, x_function);
1978
1979 if ((m_logicalFunction == wxXOR) != (function == wxXOR))
1980 /* MATTHEW: [9] Need to redo pen simply */
1981 m_autoSetting |= 0x2;
1982
1983 m_logicalFunction = function;
1984
1985 }
1986
1987 void wxWindowDC::SetTextForeground( const wxColour &col )
1988 {
1989 wxCHECK_RET( Ok(), "invalid dc" );
1990
1991 m_textForegroundColour = col;
1992 }
1993
1994 void wxWindowDC::SetTextBackground( const wxColour &col )
1995 {
1996 wxCHECK_RET( Ok(), "invalid dc" );
1997
1998 m_textBackgroundColour = col;
1999 }
2000
2001 void wxWindowDC::SetBackgroundMode( int mode )
2002 {
2003 m_backgroundMode = mode;
2004 }
2005
2006 void wxWindowDC::SetPalette( const wxPalette& palette )
2007 {
2008 if (m_window)
2009 {
2010 if (palette.Ok())
2011 /* Use GetXColormap */
2012 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2013 (Colormap) palette.GetXColormap());
2014 else
2015 /* Use wxGetMainColormap */
2016 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2017 (Colormap) wxTheApp->GetMainColormap(m_display));
2018 }
2019 }
2020
2021 static void wxCopyRegion( WXRegion src, WXRegion& dst )
2022 {
2023 if( !dst )
2024 dst = XCreateRegion();
2025 XUnionRegion( (Region)src, (Region)src, (Region)dst );
2026 }
2027
2028 // Helper function; userRegion is the region set by calling SetClippingRegion
2029 void wxWindowDC::SetDCClipping( WXRegion userRegion )
2030 {
2031 bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().Ok();
2032 // this means that we should start the clip region from scratch,
2033 // or from the update region, if any
2034 if( !userRegion )
2035 {
2036 if( m_clipRegion )
2037 XDestroyRegion( (Region)m_clipRegion );
2038 m_clipRegion = (WXRegion)NULL;
2039
2040 if( hasUpdateRegion )
2041 wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
2042 m_clipRegion );
2043 }
2044 // intersect the user region, if any, with the
2045 // exisiting clip region
2046 else // if( userRegion )
2047 {
2048 if( !m_clipRegion )
2049 wxCopyRegion( userRegion, m_clipRegion );
2050 else
2051 XIntersectRegion( (Region)m_clipRegion,
2052 (Region)userRegion, (Region)m_clipRegion );
2053 }
2054
2055 if( m_clipRegion )
2056 XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
2057 else
2058 XSetClipMask( (Display*)m_display, (GC)m_gc, None );
2059 }
2060
2061 void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y,
2062 wxCoord width, wxCoord height )
2063 {
2064 wxDC::DoSetClippingRegion( x, y, width, height );
2065
2066 wxRegion temp(x, y, width, height);
2067
2068 SetDCClipping(temp.GetX11Region());
2069
2070 // Needs to work differently for Pixmap: without this,
2071 // there's a nasty (Display*) m_display bug. 8/12/94
2072 if (m_window && m_window->GetBackingPixmap())
2073 {
2074 XRectangle rects[1];
2075 rects[0].x = (short)XLOG2DEV_2(x);
2076 rects[0].y = (short)YLOG2DEV_2(y);
2077 rects[0].width = (unsigned short)XLOG2DEVREL(width);
2078 rects[0].height = (unsigned short)YLOG2DEVREL(height);
2079 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2080 0, 0, rects, 1, Unsorted);
2081 }
2082 }
2083
2084 void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion& region )
2085 {
2086 wxRect box = region.GetBox();
2087
2088 wxDC::DoSetClippingRegion( box.x, box.y, box.width, box.height );
2089
2090 SetDCClipping(region.GetX11Region());
2091
2092 // Needs to work differently for Pixmap: without this,
2093 // there's a nasty (Display*) m_display bug. 8/12/94
2094 if (m_window && m_window->GetBackingPixmap())
2095 {
2096 XRectangle rects[1];
2097 rects[0].x = (short)XLOG2DEV_2(box.x);
2098 rects[0].y = (short)YLOG2DEV_2(box.y);
2099 rects[0].width = (unsigned short)XLOG2DEVREL(box.width);
2100 rects[0].height = (unsigned short)YLOG2DEVREL(box.height);
2101 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2102 0, 0, rects, 1, Unsorted);
2103 }
2104 }
2105
2106
2107 void wxWindowDC::DestroyClippingRegion()
2108 {
2109 wxDC::DestroyClippingRegion();
2110
2111 SetDCClipping(NULL);
2112
2113 if (m_window && m_window->GetBackingPixmap())
2114 XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
2115 }
2116
2117 // Resolution in pixels per logical inch
2118 wxSize wxWindowDC::GetPPI() const
2119 {
2120 // TODO
2121 return wxSize(100, 100);
2122 }
2123
2124 int wxWindowDC::GetDepth() const
2125 {
2126 // TODO
2127 return 24;
2128 }
2129
2130
2131
2132
2133 // ----------------------------------------------------------------------------
2134 // wxPaintDC
2135 // ----------------------------------------------------------------------------
2136
2137 wxPaintDC::wxPaintDC(wxWindow* win) : wxWindowDC(win)
2138 {
2139 // Set the clipping region.to the update region
2140 SetDCClipping((WXRegion)NULL);
2141 }
2142
2143 wxPaintDC::~wxPaintDC()
2144 {
2145 if (m_window)
2146 m_window->ClearUpdateRegion();
2147 SetDCClipping((WXRegion)NULL);
2148 }
2149
2150 // ----------------------------------------------------------------------------
2151 // private functions
2152 // ----------------------------------------------------------------------------
2153
2154 /*
2155 Used when copying between drawables on different (Display*) m_displays. Not
2156 very fast, but better than giving up.
2157 */
2158
2159 static void XCopyRemote(Display *src_display, Display *dest_display,
2160 Drawable src, Drawable dest,
2161 GC destgc,
2162 int srcx, int srcy,
2163 unsigned int w, unsigned int h,
2164 int destx, int desty,
2165 bool more, XImage **cache)
2166 {
2167 XImage *image, *destimage;
2168 Colormap destcm, srccm;
2169 static const int CACHE_SIZE = 256;
2170
2171 unsigned int i, j;
2172 unsigned long cachesrc[CACHE_SIZE], cachedest[CACHE_SIZE];
2173 int k, cache_pos, all_cache;
2174
2175 if (!cache || !*cache)
2176 image = XGetImage(src_display, src, srcx, srcy, w, h, AllPlanes, ZPixmap);
2177 else
2178 image = *cache;
2179
2180 destimage = XGetImage(dest_display, dest, destx, desty, w, h, AllPlanes, ZPixmap);
2181
2182 srccm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) src_display);
2183 destcm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dest_display);
2184
2185 cache_pos = 0;
2186 all_cache = False;
2187
2188 for (i = 0; i < w; i++)
2189 for (j = 0; j < h; j++) {
2190 unsigned long pixel;
2191 XColor xcol;
2192
2193 pixel = XGetPixel(image, i, j);
2194 for (k = cache_pos; k--; )
2195 if (cachesrc[k] == pixel) {
2196 pixel = cachedest[k];
2197 goto install;
2198 }
2199 if (all_cache)
2200 for (k = CACHE_SIZE; k-- > cache_pos; )
2201 if (cachesrc[k] == pixel) {
2202 pixel = cachedest[k];
2203 goto install;
2204 }
2205
2206 cachesrc[cache_pos] = xcol.pixel = pixel;
2207 XQueryColor(src_display, srccm, &xcol);
2208 if (!XAllocColor(dest_display, destcm, &xcol))
2209 xcol.pixel = 0;
2210 cachedest[cache_pos] = pixel = xcol.pixel;
2211
2212 if (++cache_pos >= CACHE_SIZE) {
2213 cache_pos = 0;
2214 all_cache = true;
2215 }
2216
2217 install:
2218 XPutPixel(destimage, i, j, pixel);
2219 }
2220
2221 XPutImage(dest_display, dest, destgc, destimage, 0, 0, destx, desty, w, h);
2222 XDestroyImage(destimage);
2223
2224 if (more)
2225 *cache = image;
2226 else
2227 XDestroyImage(image);
2228 }
2229
2230 #if 0
2231
2232 /* Helper function for 16-bit fonts */
2233 static int str16len(const char *s)
2234 {
2235 int count = 0;
2236
2237 while (s[0] && s[1]) {
2238 count++;
2239 s += 2;
2240 }
2241
2242 return count;
2243 }
2244
2245 #endif // 0
wxWidgets (Impactor)