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[wxWidgets.git] / src / motif / dcclient.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: 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 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 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 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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
40 #pragma implementation "dcclient.h"
41 #endif
42
43 // For compilers that support precompilation, includes "wx.h".
44 #include "wx/wxprec.h"
45
46 #include "wx/dcclient.h"
47 #include "wx/dcmemory.h"
48 #include "wx/window.h"
49 #include "wx/app.h"
50 #include "wx/image.h"
51 #include "wx/log.h"
52 #include "wx/math.h"
53
54 #ifdef __VMS__
55 #pragma message disable nosimpint
56 #endif
57 #include <Xm/Xm.h>
58 #ifdef __VMS__
59 #pragma message enable nosimpint
60 #endif
61
62 #include "wx/motif/private.h"
63
64 #ifdef __EMX__
65 #include <float.h> // for M_PI
66 #endif // __EMX__
67
68 #include "bdiag.xbm"
69 #include "fdiag.xbm"
70 #include "cdiag.xbm"
71 #include "horiz.xbm"
72 #include "verti.xbm"
73 #include "cross.xbm"
74
75 static Pixmap bdiag, cdiag, fdiag, cross, horiz, verti;
76
77 // ----------------------------------------------------------------------------
78 // constants
79 // ----------------------------------------------------------------------------
80
81 // Fudge factor (VZ: what??)
82 #define WX_GC_CF 1
83
84 // ----------------------------------------------------------------------------
85 // macros
86 // ----------------------------------------------------------------------------
87
88 IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
89 IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
90 IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
91
92 #ifndef IS_HATCH
93 // IS_HATCH exists for WXWIN_COMPATIBILITY_2_4 only
94 // but wxMotif needs it for its internals here
95 #define IS_HATCH(s) ((s)>=wxFIRST_HATCH && (s)<=wxLAST_HATCH)
96 #endif
97
98 // FIXME: left over after removal of wxDC::GetOptimization()
99 #define GET_OPTIMIZATION false
100
101 // ----------------------------------------------------------------------------
102 // prototypes
103 // ----------------------------------------------------------------------------
104
105 static void XCopyRemote(Display *src_display, Display *dest_display,
106 Drawable src, Drawable dest,
107 GC destgc,
108 int srcx, int srcy,
109 unsigned int w, unsigned int h,
110 int destx, int desty,
111 bool more, XImage **cache);
112
113 // ============================================================================
114 // implementation
115 // ============================================================================
116
117 /*
118 * compare two doubles and return the larger rounded
119 * to the nearest int
120 */
121 static int roundmax(double a, double b)
122 {
123 return (int)((a > b ? a : b) + 0.5);
124 }
125
126 /*
127 * compare two doubles and return the smaller rounded
128 * to the nearest int
129 */
130 static int roundmin(double a, double b)
131 {
132 return (int)((a < b ? a : b) - 0.5);
133 }
134
135
136 // ----------------------------------------------------------------------------
137 // wxWindowDC
138 // ----------------------------------------------------------------------------
139
140 void wxWindowDC::Init()
141 {
142 m_gc = (WXGC) 0;
143 m_gcBacking = (WXGC) 0;
144 m_window = NULL;
145 m_backgroundPixel = -1;
146 m_currentPenWidth = 1;
147 m_currentPenJoin = -1;
148 m_currentPenDashCount = -1;
149 m_currentPenDash = (wxX11Dash*) NULL;
150 m_currentStyle = -1;
151 m_currentFill = -1;
152 m_colour = wxColourDisplay();
153 m_display = (WXDisplay*) NULL;
154 m_pixmap = (WXPixmap) 0;
155 m_autoSetting = 0;
156 m_oldFont = (WXFont) 0;
157 m_ok = false;
158 m_clipRegion = (WXRegion) 0;
159 }
160
161 wxWindowDC::wxWindowDC()
162 {
163 Init();
164 }
165
166 wxWindowDC::wxWindowDC( wxWindow *window )
167 {
168 wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC constructor." );
169
170 Init();
171
172 m_window = window;
173 m_font = window->GetFont();
174 m_ok = true;
175
176 m_display = window->GetXDisplay();
177 m_pixmap = window->GetXWindow();
178 Display* display = (Display*) m_display;
179
180 XSetWindowColormap (display, (Pixmap) m_pixmap, (Colormap) wxTheApp->GetMainColormap(m_display));
181
182 XGCValues gcvalues;
183 gcvalues.foreground = BlackPixel (display, DefaultScreen (display));
184 gcvalues.background = WhitePixel (display, DefaultScreen (display));
185 gcvalues.graphics_exposures = False;
186 gcvalues.subwindow_mode = IncludeInferiors;
187 gcvalues.line_width = 1;
188 m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
189 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
190 &gcvalues);
191
192 if (m_window->GetBackingPixmap())
193 {
194 m_gcBacking = (WXGC) XCreateGC (display, RootWindow (display,
195 DefaultScreen (display)),
196 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
197 &gcvalues);
198 }
199
200 m_backgroundPixel = (int) gcvalues.background;
201
202 // Get the current Font so we can set it back later
203 XGCValues valReturn;
204 XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn);
205 m_oldFont = (WXFont) valReturn.font;
206
207 SetBackground(wxBrush(m_window->GetBackgroundColour(), wxSOLID));
208 }
209
210 wxWindowDC::~wxWindowDC()
211 {
212 if (m_gc && (m_oldFont != (WXFont) 0) && ((long) m_oldFont != -1))
213 {
214 XSetFont ((Display*) m_display, (GC) m_gc, (Font) m_oldFont);
215
216 if (m_window && m_window->GetBackingPixmap())
217 XSetFont ((Display*) m_display,(GC) m_gcBacking, (Font) m_oldFont);
218 }
219
220 if (m_gc)
221 XFreeGC ((Display*) m_display, (GC) m_gc);
222 m_gc = (WXGC) 0;
223
224 if (m_gcBacking)
225 XFreeGC ((Display*) m_display, (GC) m_gcBacking);
226 m_gcBacking = (WXGC) 0;
227
228 if (m_clipRegion)
229 XDestroyRegion ((Region) m_clipRegion);
230 m_clipRegion = (WXRegion) 0;
231 }
232
233 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
234 const wxColour & col, int style);
235
236 bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
237 const wxColour& col, int style)
238 {
239 return wxDoFloodFill(this, x, y, col, style);
240 }
241
242 bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
243 {
244 // Generic (and therefore rather inefficient) method.
245 // Could be improved.
246 wxMemoryDC memdc;
247 wxBitmap bitmap(1, 1);
248 memdc.SelectObject(bitmap);
249 memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1);
250 memdc.SelectObject(wxNullBitmap);
251 wxImage image = bitmap.ConvertToImage();
252 col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
253 return true;
254 }
255
256 void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
257 {
258 wxCHECK_RET( Ok(), "invalid dc" );
259
260 int x1d, y1d, x2d, y2d;
261
262 x1d = XLOG2DEV(x1);
263 y1d = YLOG2DEV(y1);
264 x2d = XLOG2DEV(x2);
265 y2d = YLOG2DEV(y2);
266
267 if (m_autoSetting)
268 SetPen (m_pen);
269
270 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, x1d, y1d, x2d, y2d);
271
272 if (m_window && m_window->GetBackingPixmap())
273 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
274 XLOG2DEV_2(x1), YLOG2DEV_2(y1),
275 XLOG2DEV_2(x2), YLOG2DEV_2(y2));
276
277 CalcBoundingBox(x1, y1);
278 CalcBoundingBox(x2, y2);
279 }
280
281 void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
282 {
283 wxCHECK_RET( Ok(), "invalid dc" );
284
285 if (m_autoSetting)
286 SetPen (m_pen);
287
288 int xx = XLOG2DEV (x);
289 int yy = YLOG2DEV (y);
290 int ww, hh;
291 wxDisplaySize (&ww, &hh);
292 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, 0, yy,
293 ww, yy);
294 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xx, 0,
295 xx, hh);
296
297 if (m_window && m_window->GetBackingPixmap())
298 {
299 xx = XLOG2DEV_2 (x);
300 yy = YLOG2DEV_2 (y);
301 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
302 0, yy,
303 ww, yy);
304 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
305 xx, 0,
306 xx, hh);
307 }
308 }
309
310 void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc )
311 {
312 wxCHECK_RET( Ok(), "invalid dc" );
313
314 int xx1 = XLOG2DEV (x1);
315 int yy1 = YLOG2DEV (y1);
316 int xx2 = XLOG2DEV (x2);
317 int yy2 = YLOG2DEV (y2);
318 int xxc = XLOG2DEV (xc);
319 int yyc = YLOG2DEV (yc);
320 int xxc_2 = XLOG2DEV_2 (xc);
321 int yyc_2 = YLOG2DEV_2 (yc);
322
323 wxCoord dx = xx1 - xxc;
324 wxCoord dy = yy1 - yyc;
325 double radius = sqrt ((double)(dx * dx + dy * dy));
326 wxCoord r = (wxCoord) radius;
327
328 double radius1, radius2;
329
330 if (xx1 == xx2 && yy1 == yy2)
331 {
332 radius1 = 0.0;
333 radius2 = 360.0;
334 }
335 else if (radius == 0.0)
336 radius1 = radius2 = 0.0;
337 else
338 {
339 if (xx1 - xxc == 0)
340 if (yy1 - yyc < 0)
341 radius1 = 90.0;
342 else
343 radius1 = -90.0;
344 else
345 radius1 = -atan2 ((double) (yy1 - yyc), (double) (xx1 - xxc)) * 360.0 / (2 * M_PI);
346
347 if (xx2 - xxc == 0)
348 if (yy2 - yyc < 0)
349 radius2 = 90.0;
350 else
351 radius2 = -90.0;
352 else
353 radius2 = -atan2 ((double) (yy2 - yyc), (double) (xx2 - xxc)) * 360.0 / (2 * M_PI);
354 }
355 radius1 *= 64.0;
356 radius2 *= 64.0;
357 int alpha1 = (int) radius1;
358 int alpha2 = (int) (radius2 - radius1);
359 while (alpha2 <= 0)
360 alpha2 += 360 * 64;
361 while (alpha2 > 360 * 64)
362 alpha2 -= 360 * 64;
363
364 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
365 {
366 SetBrush (m_brush);
367 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) (GC) m_gc,
368 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
369
370 if (m_window && m_window->GetBackingPixmap())
371 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
372 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
373
374 }
375
376 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
377 {
378 if (m_autoSetting)
379 SetPen (m_pen);
380 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
381 xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
382
383 if (m_window && m_window->GetBackingPixmap())
384 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
385 xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
386 }
387 CalcBoundingBox (x1, y1);
388 CalcBoundingBox (x2, y2);
389 }
390
391 void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
392 {
393 wxCHECK_RET( Ok(), "invalid dc" );
394
395 int xd, yd, wd, hd;
396
397 xd = XLOG2DEV(x);
398 yd = YLOG2DEV(y);
399 wd = XLOG2DEVREL(width);
400 hd = YLOG2DEVREL(height);
401
402 if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
403 if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
404 int start = int(sa*64);
405 int end = int(ea*64);
406 if (start<0) start+=360*64;
407 if (end <0) end +=360*64;
408 if (end>start) end-=start;
409 else end+=360*64-start;
410
411 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
412 {
413 m_autoSetting = true; // must be reset
414
415 SetBrush (m_brush);
416 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start, end);
417
418 if (m_window && m_window->GetBackingPixmap())
419 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
420 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
421 }
422
423 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
424 {
425 if (m_autoSetting)
426 SetPen (m_pen);
427 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start,end);
428 if (m_window && m_window->GetBackingPixmap())
429 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
430 XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
431 }
432 CalcBoundingBox (x, y);
433 CalcBoundingBox (x + width, y + height);
434 }
435
436 void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
437 {
438 wxCHECK_RET( Ok(), "invalid dc" );
439
440 if (m_pen.Ok() && m_autoSetting)
441 SetPen (m_pen);
442
443 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y));
444 if (m_window && m_window->GetBackingPixmap())
445 XDrawPoint ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, XLOG2DEV_2 (x), YLOG2DEV_2 (y));
446
447 CalcBoundingBox (x, y);
448 }
449
450 void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
451 {
452 wxCHECK_RET( Ok(), "invalid dc" );
453
454 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
455 {
456 if (m_autoSetting)
457 SetPen (m_pen);
458
459 XPoint *xpoints = new XPoint[n];
460 int i;
461
462 for (i = 0; i < n; i++)
463 {
464 xpoints[i].x = XLOG2DEV (points[i].x + xoffset);
465 xpoints[i].y = YLOG2DEV (points[i].y + yoffset);
466 }
467 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints, n, 0);
468
469 if (m_window && m_window->GetBackingPixmap())
470 {
471 for (i = 0; i < n; i++)
472 {
473 xpoints[i].x = XLOG2DEV_2 (points[i].x + xoffset);
474 xpoints[i].y = YLOG2DEV_2 (points[i].y + yoffset);
475 }
476 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints, n, 0);
477 }
478 delete[]xpoints;
479 }
480 }
481
482 void wxWindowDC::DoDrawPolygon( int n, wxPoint points[],
483 wxCoord xoffset, wxCoord yoffset, int fillStyle )
484 {
485 wxCHECK_RET( Ok(), "invalid dc" );
486
487 XPoint *xpoints1 = new XPoint[n + 1];
488 XPoint *xpoints2 = new XPoint[n + 1];
489 int i;
490 for (i = 0; i < n; i++)
491 {
492 xpoints1[i].x = XLOG2DEV (points[i].x + xoffset);
493 xpoints1[i].y = YLOG2DEV (points[i].y + yoffset);
494 xpoints2[i].x = XLOG2DEV_2 (points[i].x + xoffset);
495 xpoints2[i].y = YLOG2DEV_2 (points[i].y + yoffset);
496 CalcBoundingBox (points[i].x + xoffset, points[i].y + yoffset);
497 }
498
499 // Close figure for XDrawLines (not needed for XFillPolygon)
500 xpoints1[i].x = xpoints1[0].x;
501 xpoints1[i].y = xpoints1[0].y;
502 xpoints2[i].x = xpoints2[0].x;
503 xpoints2[i].y = xpoints2[0].y;
504
505 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
506 {
507 SetBrush (m_brush);
508 XSetFillRule ((Display*) m_display, (GC) m_gc, fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
509 XFillPolygon ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n, Complex, 0);
510 XSetFillRule ((Display*) m_display, (GC) m_gc, EvenOddRule); // default mode
511 if (m_window && m_window->GetBackingPixmap())
512 {
513 XSetFillRule ((Display*) m_display,(GC) m_gcBacking,
514 fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
515 XFillPolygon ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n, Complex, 0);
516 XSetFillRule ((Display*) m_display,(GC) m_gcBacking, EvenOddRule); // default mode
517 }
518 }
519
520 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
521 {
522 if (m_autoSetting)
523 SetPen (m_pen);
524 XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n + 1, 0);
525
526 if (m_window && m_window->GetBackingPixmap())
527 XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n + 1, 0);
528 }
529
530 delete[]xpoints1;
531 delete[]xpoints2;
532 }
533
534 void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
535 {
536 wxCHECK_RET( Ok(), "invalid dc" );
537
538 int xd, yd, wfd, hfd, wd, hd;
539
540 xd = XLOG2DEV(x);
541 yd = YLOG2DEV(y);
542 wfd = XLOG2DEVREL(width);
543 wd = wfd - WX_GC_CF;
544 hfd = YLOG2DEVREL(height);
545 hd = hfd - WX_GC_CF;
546
547 if (wfd == 0 || hfd == 0) return;
548 if (wd < 0) { wd = - wd; xd = xd - wd; }
549 if (hd < 0) { hd = - hd; yd = yd - hd; }
550
551 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
552 {
553 SetBrush (m_brush);
554 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wfd, hfd);
555
556 if (m_window && m_window->GetBackingPixmap())
557 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
558 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
559 wfd, hfd);
560 }
561
562 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
563 {
564 if (m_autoSetting)
565 SetPen (m_pen);
566 XDrawRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd);
567
568 if (m_window && m_window->GetBackingPixmap())
569 XDrawRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
570 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
571 wd, hd);
572 }
573 CalcBoundingBox (x, y);
574 CalcBoundingBox (x + width, y + height);
575 }
576
577 void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
578 {
579 wxCHECK_RET( Ok(), "invalid dc" );
580
581 // If radius is negative, it's a proportion of the smaller dimension.
582
583 if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
584
585 int xd = XLOG2DEV (x);
586 int yd = YLOG2DEV (y);
587 int rd = XLOG2DEVREL ((long) radius);
588 int wd = XLOG2DEVREL (width) - WX_GC_CF;
589 int hd = YLOG2DEVREL (height) - WX_GC_CF;
590
591 int rw_d = rd * 2;
592 int rh_d = rw_d;
593
594 // If radius is zero use DrawRectangle() instead to avoid
595 // X drawing errors with small radii
596 if (rd == 0)
597 {
598 DrawRectangle( x, y, width, height );
599 return;
600 }
601
602 // Draw nothing if transformed w or h is 0
603 if (wd == 0 || hd == 0) return;
604
605 // CMB: adjust size if outline is drawn otherwise the result is
606 // 1 pixel too wide and high
607 if (m_pen.GetStyle() != wxTRANSPARENT)
608 {
609 wd--;
610 hd--;
611 }
612
613 // CMB: ensure dd is not larger than rectangle otherwise we
614 // get an hour glass shape
615 if (rw_d > wd) rw_d = wd;
616 if (rw_d > hd) rw_d = hd;
617 rd = rw_d / 2;
618
619 // For backing pixmap
620 int xd2 = XLOG2DEV_2 (x);
621 int yd2 = YLOG2DEV_2 (y);
622 int rd2 = XLOG2DEVREL ((long) radius);
623 int wd2 = XLOG2DEVREL (width) ;
624 int hd2 = YLOG2DEVREL (height) ;
625
626 int rw_d2 = rd2 * 2;
627 int rh_d2 = rw_d2;
628
629 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
630 {
631 SetBrush (m_brush);
632
633 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
634 wd - rw_d, hd);
635 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
636 wd, hd - rh_d);
637
638 // Arcs start from 3 o'clock, positive angles anticlockwise
639 // Top-left
640 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
641 rw_d, rh_d, 90 * 64, 90 * 64);
642 // Top-right
643 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
644 // rw_d, rh_d, 0, 90 * 64);
645 rw_d, rh_d, 0, 91 * 64);
646 // Bottom-right
647 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
648 yd + hd - rh_d,
649 // rw_d, rh_d, 270 * 64, 90 * 64);
650 rw_d, rh_d, 269 * 64, 92 * 64);
651 // Bottom-left
652 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
653 rw_d, rh_d, 180 * 64, 90 * 64);
654
655 if (m_window && m_window->GetBackingPixmap())
656 {
657 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
658 xd2 + rd2, yd2, wd2 - rw_d2, hd2);
659 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
660 xd2, yd2 + rd2, wd2, hd2 - rh_d2);
661
662 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
663 xd2, yd2, rw_d2, rh_d2, 90 * 64, 90 * 64);
664 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
665 xd2 + wd2 - rw_d2, yd2,
666 // rw_d2, rh_d2, 0, 90 * 64);
667 rw_d2, rh_d2, 0, 91 * 64);
668 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
669 xd2 + wd2 - rw_d2,
670 yd2 + hd2 - rh_d2,
671 // rw_d2, rh_d2, 270 * 64, 90 * 64);
672 rw_d2, rh_d2, 269 * 64, 92 * 64);
673 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
674 xd2, yd2 + hd2 - rh_d2,
675 rw_d2, rh_d2, 180 * 64, 90 * 64);
676 }
677 }
678
679 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
680 {
681 SetPen (m_pen);
682 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
683 xd + wd - rd + 1, yd);
684 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd + hd,
685 xd + wd - rd, yd + hd);
686
687 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
688 xd, yd + hd - rd);
689 XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd, yd + rd,
690 xd + wd, yd + hd - rd + 1);
691 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
692 rw_d, rh_d, 90 * 64, 90 * 64);
693 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
694 // rw_d, rh_d, 0, 90 * 64);
695 rw_d, rh_d, 0, 91 * 64);
696 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
697 yd + hd - rh_d,
698 rw_d, rh_d, 269 * 64, 92 * 64);
699 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
700 rw_d, rh_d, 180 * 64, 90 * 64);
701
702 if (m_window && m_window->GetBackingPixmap())
703 {
704 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
705 xd2 + rd2, yd2,
706 xd2 + wd2 - rd2 + 1, yd2);
707 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
708 xd2 + rd2, yd2 + hd2,
709 xd2 + wd2 - rd2, yd2 + hd2);
710
711 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
712 xd2, yd2 + rd2,
713 xd2, yd2 + hd2 - rd2);
714 XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
715 xd2 + wd2, yd2 + rd2,
716 xd2 + wd2, yd2 + hd2 - rd2 + 1);
717 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
718 xd2, yd2,
719 rw_d2, rh_d2, 90 * 64, 90 * 64);
720 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
721 xd2 + wd2 - rw_d2, yd2,
722 // rw_d2, rh_d2, 0, 90 * 64);
723 rw_d2, rh_d2, 0, 91 * 64);
724 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
725 xd2 + wd2 - rw_d2,
726 yd2 + hd2 - rh_d2,
727 rw_d2, rh_d2, 269 * 64, 92 * 64);
728 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
729 xd2, yd2 + hd2 - rh_d2,
730 rw_d2, rh_d2, 180 * 64, 90 * 64);
731 }
732 }
733 CalcBoundingBox (x, y);
734 CalcBoundingBox (x + width, y + height);
735 }
736
737 void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
738 {
739 wxCHECK_RET( Ok(), "invalid dc" );
740
741 // Check for negative width and height
742 if (height < 0)
743 {
744 y = y + height;
745 height = - height ;
746 }
747
748 if (width < 0)
749 {
750 x = x + width;
751 width = - width ;
752 }
753
754 static const int angle = 23040;
755
756 int xd, yd, wd, hd;
757
758 xd = XLOG2DEV(x);
759 yd = YLOG2DEV(y);
760 wd = XLOG2DEVREL(width) ;
761 hd = YLOG2DEVREL(height) ;
762
763 if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
764 {
765 SetBrush (m_brush);
766 XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
767 if (m_window && m_window->GetBackingPixmap())
768 XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
769 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
770 XLOG2DEVREL (width) - WX_GC_CF,
771 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
772 }
773
774 if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
775 {
776 if (m_autoSetting)
777 SetPen (m_pen);
778 XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
779 if (m_window && m_window->GetBackingPixmap())
780 XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
781 XLOG2DEV_2 (x), YLOG2DEV_2 (y),
782 XLOG2DEVREL (width) - WX_GC_CF,
783 YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
784 }
785 CalcBoundingBox (x, y);
786 CalcBoundingBox (x + width, y + height);
787
788 }
789
790 bool wxWindowDC::CanDrawBitmap() const
791 {
792 wxCHECK_MSG( Ok(), false, "invalid dc" );
793
794 return true;
795 }
796
797 // TODO: use scaled Blit e.g. as per John Price's implementation
798 // in Contrib/Utilities
799 bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
800 wxCoord width, wxCoord height,
801 wxDC *source, wxCoord xsrc, wxCoord ysrc,
802 int rop, bool useMask,
803 wxCoord xsrcMask, wxCoord ysrcMask )
804 {
805 wxCHECK_MSG( Ok(), false, "invalid dc" );
806
807 wxWindowDC* sourceDC = wxDynamicCast(source, wxWindowDC);
808
809 wxASSERT_MSG( sourceDC, "Blit source DC must be wxWindowDC or derived class." );
810
811 // Be sure that foreground pixels (1) of the Icon will be painted with
812 // foreground colour. [m_textForegroundColour] Background pixels (0)
813 // will be painted with backgound colour (m_textBackgroundColour)
814 // Using ::SetPen is horribly slow, so avoid doing it
815 int oldBackgroundPixel = -1;
816 int oldForegroundPixel = -1;
817
818 if (m_textBackgroundColour.Ok())
819 {
820 oldBackgroundPixel = m_backgroundPixel;
821 int pixel = m_textBackgroundColour.AllocColour(m_display);
822
823 XSetBackground ((Display*) m_display, (GC) m_gc, pixel);
824 if (m_window && m_window->GetBackingPixmap())
825 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
826 pixel);
827 }
828 if (m_textForegroundColour.Ok())
829 {
830 oldForegroundPixel = m_currentColour.GetPixel();
831
832 if( m_textForegroundColour.GetPixel() <= -1 )
833 CalculatePixel( m_textForegroundColour,
834 m_textForegroundColour, true);
835
836 int pixel = m_textForegroundColour.GetPixel();
837 if (pixel > -1)
838 SetForegroundPixelWithLogicalFunction(pixel);
839 }
840
841 // Do bitmap scaling if necessary
842
843 wxBitmap *scaledBitmap = (wxBitmap*) NULL;
844 Pixmap sourcePixmap = (Pixmap) NULL;
845 double scaleX, scaleY;
846 GetUserScale(& scaleX, & scaleY);
847 bool retVal = false;
848
849 /* TODO: use the mask origin when drawing transparently */
850 if (xsrcMask == -1 && ysrcMask == -1)
851 {
852 xsrcMask = xsrc; ysrcMask = ysrc;
853 }
854
855 // Sorry, can't scale masks just yet
856 if (!useMask && (scaleX != 1.0 || scaleY != 1.0) && sourceDC->IsKindOf(CLASSINFO(wxMemoryDC)))
857 {
858 wxMemoryDC* memDC = (wxMemoryDC*) sourceDC;
859 wxBitmap& bitmap = memDC->GetBitmap();
860
861 wxASSERT_MSG( (bitmap.Ok()), "Bad source bitmap in wxWindowDC::Blit");
862
863 wxImage image = bitmap.ConvertToImage();
864 if (!image.Ok())
865 {
866 sourcePixmap = (Pixmap) bitmap.GetDrawable();
867 }
868 else
869 {
870 int scaledW = (int) (bitmap.GetWidth() * scaleX);
871 int scaledH = (int) (bitmap.GetHeight() * scaleY);
872
873 image = image.Scale(scaledW, scaledH);
874 scaledBitmap = new wxBitmap(image);
875 sourcePixmap = (Pixmap) scaledBitmap->GetDrawable();
876 }
877 }
878 else
879 sourcePixmap = (Pixmap) sourceDC->m_pixmap;
880
881 if (m_pixmap && sourcePixmap)
882 {
883 /* MATTHEW: [9] */
884 int orig = m_logicalFunction;
885
886 SetLogicalFunction (rop);
887
888 if (m_display != sourceDC->m_display)
889 {
890 XImage *cache = NULL;
891
892 if (m_window && m_window->GetBackingPixmap())
893 XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display,
894 (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),
895 (GC) m_gcBacking,
896 source->LogicalToDeviceX (xsrc),
897 source->LogicalToDeviceY (ysrc),
898 source->LogicalToDeviceXRel(width),
899 source->LogicalToDeviceYRel(height),
900 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest),
901 True, &cache);
902
903 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
904 {
905 wxMemoryDC *memDC = (wxMemoryDC *)source;
906 wxBitmap& sel = memDC->GetBitmap();
907 if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
908 {
909 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
910 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
911 }
912 }
913
914 XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
915 source->LogicalToDeviceX (xsrc),
916 source->LogicalToDeviceY (ysrc),
917 source->LogicalToDeviceXRel(width),
918 source->LogicalToDeviceYRel(height),
919 XLOG2DEV (xdest), YLOG2DEV (ydest),
920 False, &cache);
921
922 if ( useMask )
923 {
924 if ( m_clipRegion )
925 XSetRegion ((Display*) m_display, (GC) m_gc,
926 (Region) m_clipRegion);
927 else
928 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
929
930 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
931 }
932
933 } else
934 { //XGCValues values;
935 //XGetGCValues((Display*)m_display, (GC)m_gc, GCForeground, &values);
936
937 if (m_window && m_window->GetBackingPixmap())
938 {
939 // +++ MARKUS (mho@comnets.rwth-aachen): error on blitting bitmaps with depth 1
940 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) && ((wxMemoryDC*) source)->GetBitmap().GetDepth() == 1)
941 {
942 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
943 source->LogicalToDeviceX (xsrc),
944 source->LogicalToDeviceY (ysrc),
945 source->LogicalToDeviceXRel(width),
946 source->LogicalToDeviceYRel(height),
947 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest), 1);
948 }
949 else
950 {
951 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
952 source->LogicalToDeviceX (xsrc),
953 source->LogicalToDeviceY (ysrc),
954 source->LogicalToDeviceXRel(width),
955 source->LogicalToDeviceYRel(height),
956 XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest));
957 }
958 }
959 if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
960 {
961 wxMemoryDC *memDC = (wxMemoryDC *)source;
962 wxBitmap& sel = memDC->GetBitmap();
963 if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
964 {
965 XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
966 XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
967 }
968 }
969
970 // Check if we're copying from a mono bitmap
971 if (source->IsKindOf(CLASSINFO(wxMemoryDC)) &&
972 ((wxMemoryDC*)source)->GetBitmap().Ok() && (((wxMemoryDC*)source)->GetBitmap().GetDepth () == 1))
973 {
974 XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
975 source->LogicalToDeviceX (xsrc),
976 source->LogicalToDeviceY (ysrc),
977 source->LogicalToDeviceXRel(width),
978 source->LogicalToDeviceYRel(height),
979 XLOG2DEV (xdest), YLOG2DEV (ydest), 1);
980 }
981 else
982 {
983 XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
984 source->LogicalToDeviceX (xsrc),
985 source->LogicalToDeviceY (ysrc),
986 source->LogicalToDeviceXRel(width),
987 source->LogicalToDeviceYRel(height),
988 XLOG2DEV (xdest), YLOG2DEV (ydest));
989
990 }
991 if ( useMask )
992 {
993 if ( m_clipRegion )
994 XSetRegion ((Display*) m_display, (GC) m_gc,
995 (Region) m_clipRegion);
996 else
997 XSetClipMask ((Display*) m_display, (GC) m_gc, None);
998
999 XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
1000 }
1001
1002 } /* Remote/local (Display*) m_display */
1003 CalcBoundingBox (xdest, ydest);
1004 CalcBoundingBox (xdest + width, ydest + height);
1005
1006 SetLogicalFunction(orig);
1007
1008 retVal = true;
1009 }
1010 if (scaledBitmap) delete scaledBitmap;
1011
1012 if (oldBackgroundPixel > -1)
1013 {
1014 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
1015 if (m_window && m_window->GetBackingPixmap())
1016 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1017 oldBackgroundPixel);
1018 }
1019 if (oldForegroundPixel > -1)
1020 {
1021 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1022 if (m_window && m_window->GetBackingPixmap())
1023 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1024 oldForegroundPixel);
1025 }
1026
1027 return retVal;
1028 }
1029
1030 void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
1031 {
1032 wxCHECK_RET( Ok(), "invalid dc" );
1033
1034 // Since X draws from the baseline of the text, must add the text height
1035 int cx = 0;
1036 int cy = 0;
1037 int ascent = 0;
1038 int slen;
1039
1040 // Set FillStyle, otherwise X will use current stipple!
1041 XGCValues gcV, gcBackingV;
1042
1043 XGetGCValues ((Display*) m_display, (GC)m_gc, GCFillStyle, &gcV);
1044 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1045 if (m_window && m_window->GetBackingPixmap())
1046 {
1047 XGetGCValues ((Display*) m_display, (GC)m_gcBacking, GCFillStyle,
1048 &gcBackingV );
1049 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking, FillSolid);
1050 }
1051
1052 slen = strlen(text);
1053
1054 if (m_font.Ok())
1055 {
1056 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1057 int direction, descent;
1058 XCharStruct overall_return;
1059 #if 0
1060 if (use16)
1061 (void)XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *)(const char*) text, slen, &direction,
1062 &ascent, &descent, &overall_return);
1063 else
1064 #endif // 0
1065 (void)XTextExtents((XFontStruct*) pFontStruct,
1066 wxConstCast(text.c_str(), char),
1067 slen, &direction,
1068 &ascent, &descent, &overall_return);
1069
1070 cx = overall_return.width;
1071 cy = ascent + descent;
1072 }
1073
1074 // First draw a rectangle representing the text background, if a text
1075 // background is specified
1076 if (m_textBackgroundColour.Ok () && (m_backgroundMode != wxTRANSPARENT))
1077 {
1078 wxColour oldPenColour = m_currentColour;
1079 m_currentColour = m_textBackgroundColour;
1080 bool sameColour = (oldPenColour.Ok () && m_textBackgroundColour.Ok () &&
1081 (oldPenColour.Red () == m_textBackgroundColour.Red ()) &&
1082 (oldPenColour.Blue () == m_textBackgroundColour.Blue ()) &&
1083 (oldPenColour.Green () == m_textBackgroundColour.Green ()));
1084
1085 // This separation of the big && test required for gcc2.7/HP UX 9.02
1086 // or pixel value can be corrupted!
1087 sameColour = (sameColour &&
1088 (oldPenColour.GetPixel() == m_textBackgroundColour.GetPixel()));
1089
1090 if (!sameColour || !GET_OPTIMIZATION)
1091 {
1092 int pixel = m_textBackgroundColour.AllocColour(m_display);
1093 m_currentColour = m_textBackgroundColour;
1094
1095 // Set the GC to the required colour
1096 if (pixel > -1)
1097 {
1098 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1099 if (m_window && m_window->GetBackingPixmap())
1100 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1101 }
1102 }
1103 else
1104 m_textBackgroundColour = oldPenColour ;
1105
1106 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y), cx, cy);
1107 if (m_window && m_window->GetBackingPixmap())
1108 XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1109 XLOG2DEV_2 (x), YLOG2DEV_2 (y), cx, cy);
1110 }
1111
1112 // Now set the text foreground and draw the text
1113 if (m_textForegroundColour.Ok ())
1114 {
1115 wxColour oldPenColour = m_currentColour;
1116 m_currentColour = m_textForegroundColour;
1117 bool sameColour = (oldPenColour.Ok () && m_currentColour.Ok () &&
1118 (oldPenColour.Red () == m_currentColour.Red ()) &&
1119 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1120 (oldPenColour.Green () == m_currentColour.Green ()) &&
1121 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1122
1123 if (!sameColour || !GET_OPTIMIZATION)
1124 {
1125 int pixel = CalculatePixel(m_textForegroundColour,
1126 m_currentColour, false);
1127
1128 // Set the GC to the required colour
1129 if (pixel > -1)
1130 {
1131 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1132 if (m_window && m_window->GetBackingPixmap())
1133 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1134 }
1135 }
1136 else
1137 m_textForegroundColour = oldPenColour;
1138 }
1139
1140 // We need to add the ascent, not the whole height, since X draws at the
1141 // point above the descender.
1142 #if 0
1143 if (use16)
1144 XDrawString16((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent,
1145 (XChar2b *)(char*) (const char*) text, slen);
1146 else
1147 #endif // 0
1148 XDrawString((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
1149
1150 if (m_window && m_window->GetBackingPixmap()) {
1151 #if 0
1152 if (use16)
1153 XDrawString16((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1154 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1155 (XChar2b *)(char*) (const char*) text, slen);
1156 else
1157 #endif // 0
1158 XDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
1159 XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
1160 wxConstCast(text.c_str(), char), slen);
1161 }
1162
1163 // restore fill style
1164 XSetFillStyle ((Display*) m_display, (GC) m_gc, gcV.fill_style);
1165 if (m_window && m_window->GetBackingPixmap())
1166 XSetFillStyle ((Display*) m_display, (GC) m_gcBacking,
1167 gcBackingV.fill_style);
1168
1169 wxCoord w, h;
1170 GetTextExtent (text, &w, &h);
1171 CalcBoundingBox (x + w, y + h);
1172 CalcBoundingBox (x, y);
1173 }
1174
1175 void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
1176 double angle )
1177 {
1178 if (angle == 0.0)
1179 {
1180 DrawText(text, x, y);
1181 return;
1182 }
1183
1184 wxCHECK_RET( Ok(), "invalid dc" );
1185
1186 int oldBackgroundPixel = -1;
1187 int oldForegroundPixel = -1;
1188 int foregroundPixel = -1;
1189 int backgroundPixel = -1;
1190
1191 if (m_textBackgroundColour.Ok())
1192 {
1193 oldBackgroundPixel = m_backgroundPixel;
1194 backgroundPixel = m_textBackgroundColour.AllocColour(m_display);
1195 }
1196 if (m_textForegroundColour.Ok())
1197 {
1198 oldForegroundPixel = m_currentColour.GetPixel();
1199
1200 if( m_textForegroundColour.GetPixel() <= -1 )
1201 CalculatePixel( m_textForegroundColour,
1202 m_textForegroundColour, true);
1203
1204 foregroundPixel = m_textForegroundColour.GetPixel();
1205 }
1206
1207 // Since X draws from the baseline of the text, must add the text height
1208 int cx = 0;
1209 int cy = 0;
1210 int ascent = 0;
1211 int slen = text.length();
1212
1213 if (m_font.Ok())
1214 {
1215 // Calculate text extent.
1216 WXFontStructPtr pFontStruct =
1217 m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1218 int direction, descent;
1219 XCharStruct overall_return;
1220 #if 0
1221 if (use16)
1222 (void)XTextExtents16((XFontStruct*) pFontStruct,
1223 (XChar2b *)(const char*) text,
1224 slen, &direction,
1225 &ascent, &descent, &overall_return);
1226 else
1227 #endif // 0
1228 (void)XTextExtents((XFontStruct*) pFontStruct,
1229 wxConstCast(text.c_str(), char),
1230 slen, &direction,
1231 &ascent, &descent, &overall_return);
1232
1233 cx = overall_return.width;
1234 cy = ascent + descent;
1235 }
1236
1237 wxBitmap src(cx, cy);
1238 wxMemoryDC dc;
1239 dc.SelectObject(src);
1240 dc.SetFont(GetFont());
1241 dc.SetBackground(*wxWHITE_BRUSH);
1242 dc.SetBrush(*wxBLACK_BRUSH);
1243 dc.Clear();
1244 dc.DrawText(text, 0, 0);
1245 dc.SetFont(wxNullFont);
1246
1247 // Calculate the size of the rotated bounding box.
1248 double dx = cos(angle / 180.0 * M_PI);
1249 double dy = sin(angle / 180.0 * M_PI);
1250 double x4 = cy * dy;
1251 double y4 = cy * dx;
1252 double x3 = cx * dx;
1253 double y3 = -cx * dy;
1254 double x2 = x3 + x4;
1255 double y2 = y3 + y4;
1256 double x1 = x;
1257 double y1 = y;
1258
1259 // Create image from the source bitmap after writing the text into it.
1260 wxImage image = src.ConvertToImage();
1261
1262 int minx = roundmin(0, roundmin(x4, roundmin(x2, x3)));
1263 int miny = roundmin(0, roundmin(y4, roundmin(y2, y3)));
1264 int maxx = roundmax(0, roundmax(x4, roundmax(x2, x3)));
1265 int maxy = roundmax(0, roundmax(y4, roundmax(y2, y3)));
1266
1267 bool lastFore = false, lastBack = false;
1268
1269 // This rotates counterclockwise around the top left corner.
1270 for (int rx = minx; rx < maxx; rx++)
1271 {
1272 for (int ry = miny; ry < maxy; ry++)
1273 {
1274 // transform dest coords to source coords
1275 int sx = (int) (rx * dx - ry * dy + 0.5);
1276 int sy = - (int) (-ry * dx - rx * dy + 0.5);
1277 if (sx >= 0 && sx < cx && sy >= 0 && sy < cy)
1278 {
1279 bool textPixel = image.GetRed(sx, sy) == 0;
1280
1281 if (!textPixel && m_backgroundMode != wxSOLID)
1282 continue;
1283
1284 wxCoord ox = (wxCoord) (x1 + rx),
1285 oy = (wxCoord) (y1 + ry);
1286 // draw black pixels, ignore white ones (i.e. transparent b/g)
1287 if (textPixel && !lastFore)
1288 {
1289 XSetForeground ((Display*) m_display, (GC) m_gc,
1290 foregroundPixel);
1291 lastFore = true;
1292 lastBack = false;
1293 }
1294 else if (!textPixel && !lastBack)
1295 {
1296 XSetForeground ((Display*) m_display, (GC) m_gc,
1297 backgroundPixel);
1298 lastFore = false;
1299 lastBack = true;
1300 }
1301
1302 XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap,
1303 (GC) m_gc, XLOG2DEV (ox), YLOG2DEV (oy));
1304 if (m_window && m_window->GetBackingPixmap())
1305 XDrawPoint ((Display*) m_display,
1306 (Pixmap) m_window->GetBackingPixmap(),
1307 (GC) m_gcBacking,
1308 XLOG2DEV_2 (ox), YLOG2DEV_2 (oy));
1309 }
1310 }
1311 }
1312
1313 if (oldBackgroundPixel > -1)
1314 {
1315 XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
1316 if (m_window && m_window->GetBackingPixmap())
1317 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1318 oldBackgroundPixel);
1319 }
1320 if (oldForegroundPixel > -1)
1321 {
1322 XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
1323 if (m_window && m_window->GetBackingPixmap())
1324 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1325 oldForegroundPixel);
1326 }
1327
1328 CalcBoundingBox (minx, miny);
1329 CalcBoundingBox (maxx, maxy);
1330 }
1331
1332 bool wxWindowDC::CanGetTextExtent() const
1333 {
1334 return true;
1335 }
1336
1337 void wxWindowDC::DoGetTextExtent( const wxString &string, wxCoord *width, wxCoord *height,
1338 wxCoord *descent, wxCoord *externalLeading,
1339 wxFont *font ) const
1340 {
1341 wxCHECK_RET( Ok(), "invalid dc" );
1342
1343 wxFont* theFont = font;
1344 if (!theFont)
1345 theFont = (wxFont *)&m_font; // const_cast
1346
1347 if (!theFont->Ok())
1348 {
1349 // TODO: this should be an error log function
1350 wxFAIL_MSG("set a valid font before calling GetTextExtent!");
1351
1352 if (width) *width = -1;
1353 if (height) *height = -1;
1354 return;
1355 }
1356
1357 WXFontStructPtr pFontStruct = theFont->GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1358
1359 int direction, ascent, descent2;
1360 XCharStruct overall;
1361 int slen;
1362
1363 #if 0
1364 if (use16)
1365 slen = str16len(string);
1366 else
1367 #endif // 0
1368 slen = strlen(string);
1369
1370 #if 0
1371 if (use16)
1372 XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1373 &ascent, &descent2, &overall);
1374 else
1375 #endif // 0
1376 XTextExtents((XFontStruct*) pFontStruct,
1377 wxConstCast(string.c_str(), char), slen, &direction,
1378 &ascent, &descent2, &overall);
1379
1380 if (width) *width = XDEV2LOGREL (overall.width);
1381 if (height) *height = YDEV2LOGREL (ascent + descent2);
1382 if (descent)
1383 *descent = descent2;
1384 if (externalLeading)
1385 *externalLeading = 0;
1386 }
1387
1388 wxCoord wxWindowDC::GetCharWidth() const
1389 {
1390 wxCHECK_MSG( Ok(), 0, "invalid dc" );
1391 wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
1392
1393 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY * m_logicalScaleY, m_display);
1394
1395 int direction, ascent, descent;
1396 XCharStruct overall;
1397 XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1398 &descent, &overall);
1399 return XDEV2LOGREL(overall.width);
1400 }
1401
1402 wxCoord wxWindowDC::GetCharHeight() const
1403 {
1404 wxCHECK_MSG( Ok(), 0, "invalid dc" );
1405 wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
1406
1407 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1408
1409 int direction, ascent, descent;
1410 XCharStruct overall;
1411 XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1412 &descent, &overall);
1413 // return XDEV2LOGREL(overall.ascent + overall.descent);
1414 return XDEV2LOGREL(ascent + descent);
1415 }
1416
1417 void wxWindowDC::DoGetSize( int *width, int *height ) const
1418 {
1419 int w = 0, h = 0;
1420
1421 if( m_window )
1422 {
1423 if( m_window->GetBackingPixmap() )
1424 {
1425 w = m_window->GetPixmapWidth();
1426 h = m_window->GetPixmapHeight();
1427 }
1428 else
1429 m_window->GetSize( &w, &h );
1430 }
1431
1432 if( width ) *width = w;
1433 if( height ) *height = h;
1434 }
1435
1436 void wxWindowDC::Clear()
1437 {
1438 wxCHECK_RET( Ok(), "invalid dc" );
1439
1440 wxRect rect( GetSize() );
1441 Clear( rect );
1442 }
1443
1444 void wxWindowDC::Clear(const wxRect& rect)
1445 {
1446 wxCHECK_RET( Ok(), "invalid dc" );
1447
1448 int x = rect.x; int y = rect.y;
1449 int w = rect.width; int h = rect.height;
1450
1451 wxBrush saveBrush = m_brush;
1452 SetBrush (m_backgroundBrush);
1453
1454 XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
1455 x, y, w, h);
1456
1457 if (m_window && m_window->GetBackingPixmap())
1458 XFillRectangle ((Display*) m_display,
1459 (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
1460 x, y, w, h);
1461
1462 m_brush = saveBrush;
1463 }
1464
1465 void wxWindowDC::SetFont( const wxFont &font )
1466 {
1467 wxCHECK_RET( Ok(), "invalid dc" );
1468
1469 m_font = font;
1470
1471 if (!m_font.Ok())
1472 {
1473 if ((m_oldFont != (WXFont) 0) && ((wxCoord) m_oldFont != -1))
1474 {
1475 XSetFont ((Display*) m_display, (GC) m_gc, (Font) m_oldFont);
1476
1477 if (m_window && m_window->GetBackingPixmap())
1478 XSetFont ((Display*) m_display,(GC) m_gcBacking, (Font) m_oldFont);
1479 }
1480 return;
1481 }
1482
1483 WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
1484
1485 Font fontId = ((XFontStruct*)pFontStruct)->fid;
1486 XSetFont ((Display*) m_display, (GC) m_gc, fontId);
1487
1488 if (m_window && m_window->GetBackingPixmap())
1489 XSetFont ((Display*) m_display,(GC) m_gcBacking, fontId);
1490 }
1491
1492 void wxWindowDC::SetForegroundPixelWithLogicalFunction(int pixel)
1493 {
1494 if (m_logicalFunction == wxXOR)
1495 {
1496 XGCValues values;
1497 XGetGCValues ((Display*) m_display, (GC) m_gc, GCBackground, &values);
1498 XSetForeground ((Display*) m_display, (GC) m_gc,
1499 pixel ^ values.background);
1500 if (m_window && m_window->GetBackingPixmap())
1501 XSetForeground ((Display*) m_display,(GC) m_gcBacking,
1502 pixel ^ values.background);
1503 }
1504 else
1505 {
1506 XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
1507 if (m_window && m_window->GetBackingPixmap())
1508 XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
1509 }
1510 }
1511
1512 int wxWindowDC::CalculatePixel(wxColour& colour, wxColour& curCol,
1513 bool roundToWhite) const
1514 {
1515 const unsigned char wp = (unsigned char)255;
1516
1517 int pixel = -1;
1518 if(!m_colour) // Mono display
1519 {
1520 unsigned char red = colour.Red ();
1521 unsigned char blue = colour.Blue ();
1522 unsigned char green = colour.Green ();
1523 // white
1524 if((red == wp && blue == wp && green == wp) ||
1525 // not black and roundToWhite was specified
1526 ((red != 0 || blue != 0 || green != 0) && roundToWhite))
1527 {
1528 curCol = *wxWHITE;
1529 pixel = (int)WhitePixel((Display*) m_display,
1530 DefaultScreen((Display*) m_display));
1531 curCol.SetPixel(pixel);
1532 colour.SetPixel(pixel);
1533 }
1534 else
1535 {
1536 curCol = *wxBLACK;
1537 pixel = (int)BlackPixel((Display*) m_display,
1538 DefaultScreen((Display*) m_display));
1539 curCol.SetPixel(pixel);
1540 colour.SetPixel(pixel);
1541 }
1542 }
1543 else
1544 {
1545 curCol = colour;
1546 pixel = colour.AllocColour((Display*) m_display);
1547 curCol.SetPixel(pixel);
1548 }
1549
1550 return pixel;
1551 }
1552
1553 void wxWindowDC::SetPen( const wxPen &pen )
1554 {
1555 wxCHECK_RET( Ok(), "invalid dc" );
1556
1557 m_pen = pen;
1558 if (!m_pen.Ok())
1559 return;
1560
1561 wxBitmap oldStipple = m_currentStipple;
1562 int oldStyle = m_currentStyle;
1563 int oldFill = m_currentFill;
1564 int old_pen_width = m_currentPenWidth;
1565 int old_pen_join = m_currentPenJoin;
1566 int old_pen_cap = m_currentPenCap;
1567 int old_pen_nb_dash = m_currentPenDashCount;
1568 wxX11Dash *old_pen_dash = m_currentPenDash;
1569
1570 wxColour oldPenColour = m_currentColour;
1571 m_currentColour = m_pen.GetColour ();
1572 m_currentStyle = m_pen.GetStyle ();
1573 m_currentFill = m_pen.GetStyle (); // TODO?
1574 m_currentPenWidth = m_pen.GetWidth ();
1575 m_currentPenJoin = m_pen.GetJoin ();
1576 m_currentPenCap = m_pen.GetCap ();
1577 m_currentPenDashCount = m_pen.GetDashCount();
1578 m_currentPenDash = (wxX11Dash*)m_pen.GetDash();
1579
1580 if (m_currentStyle == wxSTIPPLE)
1581 m_currentStipple = * m_pen.GetStipple ();
1582
1583 bool sameStyle = (oldStyle == m_currentStyle &&
1584 oldFill == m_currentFill &&
1585 old_pen_join == m_currentPenJoin &&
1586 old_pen_cap == m_currentPenCap &&
1587 old_pen_nb_dash == m_currentPenDashCount &&
1588 old_pen_dash == m_currentPenDash &&
1589 old_pen_width == m_currentPenWidth);
1590
1591 bool sameColour = (oldPenColour.Ok () &&
1592 (oldPenColour.Red () == m_currentColour.Red ()) &&
1593 (oldPenColour.Blue () == m_currentColour.Blue ()) &&
1594 (oldPenColour.Green () == m_currentColour.Green ()) &&
1595 (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
1596
1597 if (!sameStyle || !GET_OPTIMIZATION)
1598 {
1599 int scaled_width = (int) XLOG2DEVREL (m_pen.GetWidth ());
1600 if (scaled_width < 0)
1601 scaled_width = 0;
1602
1603 int style;
1604 int join;
1605 int cap;
1606 static const wxX11Dash dotted[] = {2, 5};
1607 static const wxX11Dash short_dashed[] = {4, 4};
1608 static const wxX11Dash long_dashed[] = {4, 8};
1609 static const wxX11Dash dotted_dashed[] = {6, 6, 2, 6};
1610
1611 // We express dash pattern in pen width unit, so we are
1612 // independent of zoom factor and so on...
1613 int req_nb_dash;
1614 const wxX11Dash *req_dash;
1615
1616 switch (m_pen.GetStyle ())
1617 {
1618 case wxUSER_DASH:
1619 req_nb_dash = m_currentPenDashCount;
1620 req_dash = m_currentPenDash;
1621 style = LineOnOffDash;
1622 break;
1623 case wxDOT:
1624 req_nb_dash = 2;
1625 req_dash = dotted;
1626 style = LineOnOffDash;
1627 break;
1628 case wxSHORT_DASH:
1629 req_nb_dash = 2;
1630 req_dash = short_dashed;
1631 style = LineOnOffDash;
1632 break;
1633 case wxLONG_DASH:
1634 req_nb_dash = 2;
1635 req_dash = long_dashed;
1636 style = LineOnOffDash;
1637 break;
1638 case wxDOT_DASH:
1639 req_nb_dash = 4;
1640 req_dash = dotted_dashed;
1641 style = LineOnOffDash;
1642 break;
1643 case wxSTIPPLE:
1644 case wxSOLID:
1645 case wxTRANSPARENT:
1646 default:
1647 style = LineSolid;
1648 req_dash = (wxX11Dash*)NULL;
1649 req_nb_dash = 0;
1650 }
1651
1652 if (req_dash && req_nb_dash)
1653 {
1654 wxX11Dash *real_req_dash = new wxX11Dash[req_nb_dash];
1655 if (real_req_dash)
1656 {
1657 int factor = scaled_width == 0 ? 1 : scaled_width;
1658 for (int i = 0; i < req_nb_dash; i++)
1659 real_req_dash[i] = req_dash[i] * factor;
1660 XSetDashes ((Display*) m_display, (GC) m_gc, 0, real_req_dash, req_nb_dash);
1661
1662 if (m_window && m_window->GetBackingPixmap())
1663 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, real_req_dash, req_nb_dash);
1664 delete[]real_req_dash;
1665 }
1666 else
1667 {
1668 // No Memory. We use non-scaled dash pattern...
1669 XSetDashes ((Display*) m_display, (GC) m_gc, 0, req_dash, req_nb_dash);
1670
1671 if (m_window && m_window->GetBackingPixmap())
1672 XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, req_dash, req_nb_dash);
1673 }
1674 }
1675
1676 switch (m_pen.GetCap ())
1677 {
1678 case wxCAP_PROJECTING:
1679 cap = CapProjecting;
1680 break;
1681 case wxCAP_BUTT:
1682 cap = CapButt;
1683 break;
1684 case wxCAP_ROUND:
1685 default:
1686 cap = (scaled_width <= 1) ? CapNotLast : CapRound;
1687 break;
1688 }
1689
1690 switch (m_pen.GetJoin ())
1691 {
1692 case wxJOIN_BEVEL:
1693 join = JoinBevel;
1694 break;
1695 case wxJOIN_MITER:
1696 join = JoinMiter;
1697 break;
1698 case wxJOIN_ROUND:
1699 default:
1700 join = JoinRound;
1701 break;
1702 }
1703
1704 XSetLineAttributes ((Display*) m_display, (GC) m_gc, scaled_width, style, cap, join);
1705
1706 if (m_window && m_window->GetBackingPixmap())
1707 XSetLineAttributes ((Display*) m_display,(GC) m_gcBacking, scaled_width, style, cap, join);
1708 }
1709
1710 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1711 {
1712 Pixmap myStipple;
1713
1714 oldStipple = wxNullBitmap; // For later reset!!
1715
1716 switch (m_currentFill)
1717 {
1718 case wxBDIAGONAL_HATCH:
1719 if (bdiag == (Pixmap) 0)
1720 bdiag = XCreateBitmapFromData ((Display*) m_display,
1721 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1722 bdiag_bits, bdiag_width, bdiag_height);
1723 myStipple = bdiag;
1724 break;
1725 case wxFDIAGONAL_HATCH:
1726 if (fdiag == (Pixmap) 0)
1727 fdiag = XCreateBitmapFromData ((Display*) m_display,
1728 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1729 fdiag_bits, fdiag_width, fdiag_height);
1730 myStipple = fdiag;
1731 break;
1732 case wxCROSS_HATCH:
1733 if (cross == (Pixmap) 0)
1734 cross = XCreateBitmapFromData ((Display*) m_display,
1735 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1736 cross_bits, cross_width, cross_height);
1737 myStipple = cross;
1738 break;
1739 case wxHORIZONTAL_HATCH:
1740 if (horiz == (Pixmap) 0)
1741 horiz = XCreateBitmapFromData ((Display*) m_display,
1742 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1743 horiz_bits, horiz_width, horiz_height);
1744 myStipple = horiz;
1745 break;
1746 case wxVERTICAL_HATCH:
1747 if (verti == (Pixmap) 0)
1748 verti = XCreateBitmapFromData ((Display*) m_display,
1749 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1750 verti_bits, verti_width, verti_height);
1751 myStipple = verti;
1752 break;
1753 case wxCROSSDIAG_HATCH:
1754 default:
1755 if (cdiag == (Pixmap) 0)
1756 cdiag = XCreateBitmapFromData ((Display*) m_display,
1757 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1758 cdiag_bits, cdiag_width, cdiag_height);
1759 myStipple = cdiag;
1760 break;
1761 }
1762 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1763
1764 if (m_window && m_window->GetBackingPixmap())
1765 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1766 }
1767 else if (m_currentStipple.Ok()
1768 && ((m_currentStipple != oldStipple) || !GET_OPTIMIZATION))
1769 {
1770 XSetStipple ((Display*) m_display, (GC) m_gc, (Pixmap) m_currentStipple.GetDrawable());
1771
1772 if (m_window && m_window->GetBackingPixmap())
1773 XSetStipple ((Display*) m_display,(GC) m_gcBacking, (Pixmap) m_currentStipple.GetDrawable());
1774 }
1775
1776 if ((m_currentFill != oldFill) || !GET_OPTIMIZATION)
1777 {
1778 int fill_style;
1779
1780 if (m_currentFill == wxSTIPPLE)
1781 fill_style = FillStippled;
1782 else if (IS_HATCH (m_currentFill))
1783 fill_style = FillStippled;
1784 else
1785 fill_style = FillSolid;
1786 XSetFillStyle ((Display*) m_display, (GC) m_gc, fill_style);
1787 if (m_window && m_window->GetBackingPixmap())
1788 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, fill_style);
1789 }
1790
1791 // must test m_logicalFunction, because it involves background!
1792 if (!sameColour || !GET_OPTIMIZATION
1793 || ((m_logicalFunction == wxXOR) || (m_autoSetting & 0x2)))
1794 {
1795 int pixel = -1;
1796 if (m_pen.GetStyle () == wxTRANSPARENT)
1797 pixel = m_backgroundPixel;
1798 else
1799 {
1800 pixel = CalculatePixel(m_pen.GetColour(), m_currentColour, false);
1801 }
1802
1803 // Finally, set the GC to the required colour
1804 if (pixel > -1)
1805 SetForegroundPixelWithLogicalFunction(pixel);
1806 }
1807 else
1808 m_pen.GetColour().SetPixel(oldPenColour.GetPixel());
1809
1810 m_autoSetting = 0;
1811 }
1812
1813 void wxWindowDC::SetBrush( const wxBrush &brush )
1814 {
1815 wxCHECK_RET( Ok(), "invalid dc" );
1816
1817 m_brush = brush;
1818
1819 if (!m_brush.Ok() || m_brush.GetStyle () == wxTRANSPARENT)
1820 return;
1821
1822 int oldFill = m_currentFill;
1823 wxBitmap oldStipple = m_currentStipple;
1824
1825 m_autoSetting |= 0x1;
1826
1827 m_currentFill = m_brush.GetStyle ();
1828 if (m_currentFill == wxSTIPPLE)
1829 m_currentStipple = * m_brush.GetStipple ();
1830
1831 wxColour oldBrushColour(m_currentColour);
1832 m_currentColour = m_brush.GetColour ();
1833
1834 bool sameColour = (oldBrushColour.Ok () &&
1835 (oldBrushColour.Red () == m_currentColour.Red ()) &&
1836 (oldBrushColour.Blue () == m_currentColour.Blue ()) &&
1837 (oldBrushColour.Green () == m_currentColour.Green ()) &&
1838 (oldBrushColour.GetPixel() == m_currentColour.GetPixel()));
1839
1840 int stippleDepth = -1;
1841
1842 if ((oldFill != m_brush.GetStyle ()) || !GET_OPTIMIZATION)
1843 {
1844 switch (brush.GetStyle ())
1845 {
1846 case wxTRANSPARENT:
1847 break;
1848 case wxSTIPPLE:
1849 stippleDepth = m_currentStipple.GetDepth();
1850 // fall through!
1851 case wxBDIAGONAL_HATCH:
1852 case wxCROSSDIAG_HATCH:
1853 case wxFDIAGONAL_HATCH:
1854 case wxCROSS_HATCH:
1855 case wxHORIZONTAL_HATCH:
1856 case wxVERTICAL_HATCH:
1857 {
1858 if (stippleDepth == -1) stippleDepth = 1;
1859
1860 // Chris Breeze 23/07/97: use background mode to
1861 // determine whether fill style should be solid or
1862 // transparent
1863 int style = stippleDepth == 1 ?
1864 (m_backgroundMode == wxSOLID ?
1865 FillOpaqueStippled : FillStippled) :
1866 FillTiled;
1867 XSetFillStyle ((Display*) m_display, (GC) m_gc, style);
1868 if (m_window && m_window->GetBackingPixmap())
1869 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, style);
1870 }
1871 break;
1872 case wxSOLID:
1873 default:
1874 XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
1875 if (m_window && m_window->GetBackingPixmap())
1876 XSetFillStyle ((Display*) m_display,(GC) m_gcBacking,
1877 FillSolid);
1878 }
1879 }
1880
1881 if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
1882 {
1883 Pixmap myStipple;
1884
1885 switch (m_currentFill)
1886 {
1887 case wxBDIAGONAL_HATCH:
1888 if (bdiag == (Pixmap) 0)
1889 bdiag = XCreateBitmapFromData ((Display*) m_display,
1890 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1891 bdiag_bits, bdiag_width, bdiag_height);
1892 myStipple = bdiag;
1893 break;
1894 case wxFDIAGONAL_HATCH:
1895 if (fdiag == (Pixmap) 0)
1896 fdiag = XCreateBitmapFromData ((Display*) m_display,
1897 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1898 fdiag_bits, fdiag_width, fdiag_height);
1899 myStipple = fdiag;
1900 break;
1901 case wxCROSS_HATCH:
1902 if (cross == (Pixmap) 0)
1903 cross = XCreateBitmapFromData ((Display*) m_display,
1904 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1905 cross_bits, cross_width, cross_height);
1906 myStipple = cross;
1907 break;
1908 case wxHORIZONTAL_HATCH:
1909 if (horiz == (Pixmap) 0)
1910 horiz = XCreateBitmapFromData ((Display*) m_display,
1911 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1912 horiz_bits, horiz_width, horiz_height);
1913 myStipple = horiz;
1914 break;
1915 case wxVERTICAL_HATCH:
1916 if (verti == (Pixmap) 0)
1917 verti = XCreateBitmapFromData ((Display*) m_display,
1918 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1919 verti_bits, verti_width, verti_height);
1920 myStipple = verti;
1921 break;
1922 case wxCROSSDIAG_HATCH:
1923 default:
1924 if (cdiag == (Pixmap) 0)
1925 cdiag = XCreateBitmapFromData ((Display*) m_display,
1926 RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
1927 cdiag_bits, cdiag_width, cdiag_height);
1928 myStipple = cdiag;
1929 break;
1930 }
1931 XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
1932
1933 if (m_window && m_window->GetBackingPixmap())
1934 XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
1935 }
1936 // X can forget the stipple value when resizing a window (apparently)
1937 // so always set the stipple.
1938 else if (m_currentFill != wxSOLID && m_currentFill != wxTRANSPARENT &&
1939 m_currentStipple.Ok()) // && m_currentStipple != oldStipple)
1940 {
1941 if (m_currentStipple.GetDepth() == 1)
1942 {
1943 XSetStipple ((Display*) m_display, (GC) m_gc,
1944 (Pixmap) m_currentStipple.GetDrawable());
1945 if (m_window && m_window->GetBackingPixmap())
1946 XSetStipple ((Display*) m_display,(GC) m_gcBacking,
1947 (Pixmap) m_currentStipple.GetDrawable());
1948 }
1949 else
1950 {
1951 XSetTile ((Display*) m_display, (GC) m_gc,
1952 (Pixmap) m_currentStipple.GetDrawable());
1953 if (m_window && m_window->GetBackingPixmap())
1954 XSetTile ((Display*) m_display,(GC) m_gcBacking,
1955 (Pixmap) m_currentStipple.GetDrawable());
1956 }
1957 }
1958
1959 // must test m_logicalFunction, because it involves background!
1960 if (!sameColour || !GET_OPTIMIZATION || m_logicalFunction == wxXOR)
1961 {
1962 int pixel = CalculatePixel(m_brush.GetColour(), m_currentColour, true);
1963
1964 if (pixel > -1)
1965 SetForegroundPixelWithLogicalFunction(pixel);
1966 }
1967 else
1968 m_brush.GetColour().SetPixel(oldBrushColour.GetPixel());
1969 }
1970
1971 void wxWindowDC::SetBackground( const wxBrush &brush )
1972 {
1973 wxCHECK_RET( Ok(), "invalid dc" );
1974
1975 m_backgroundBrush = brush;
1976
1977 if (!m_backgroundBrush.Ok())
1978 return;
1979
1980 m_backgroundPixel = m_backgroundBrush.GetColour().AllocColour(m_display);
1981
1982 // Necessary for ::DrawIcon, which use fg/bg pixel or the GC.
1983 // And Blit,... (Any fct that use XCopyPlane, in fact.)
1984 XSetBackground ((Display*) m_display, (GC) m_gc, m_backgroundPixel);
1985 if (m_window && m_window->GetBackingPixmap())
1986 XSetBackground ((Display*) m_display,(GC) m_gcBacking,
1987 m_backgroundPixel);
1988 }
1989
1990 void wxWindowDC::SetLogicalFunction( int function )
1991 {
1992 wxCHECK_RET( Ok(), "invalid dc" );
1993
1994 int x_function;
1995
1996 /* MATTHEW: [9] */
1997 if (m_logicalFunction == function)
1998 return;
1999
2000 switch (function)
2001 {
2002 case wxCLEAR:
2003 x_function = GXclear;
2004 break;
2005 case wxXOR:
2006 x_function = GXxor;
2007 break;
2008 case wxINVERT:
2009 x_function = GXinvert;
2010 break;
2011 case wxOR_REVERSE:
2012 x_function = GXorReverse;
2013 break;
2014 case wxAND_REVERSE:
2015 x_function = GXandReverse;
2016 break;
2017 case wxAND:
2018 x_function = GXand;
2019 break;
2020 case wxOR:
2021 x_function = GXor;
2022 break;
2023 case wxAND_INVERT:
2024 x_function = GXandInverted;
2025 break;
2026 case wxNO_OP:
2027 x_function = GXnoop;
2028 break;
2029 case wxNOR:
2030 x_function = GXnor;
2031 break;
2032 case wxEQUIV:
2033 x_function = GXequiv;
2034 break;
2035 case wxSRC_INVERT:
2036 x_function = GXcopyInverted;
2037 break;
2038 case wxOR_INVERT:
2039 x_function = GXorInverted;
2040 break;
2041 case wxNAND:
2042 x_function = GXnand;
2043 break;
2044 case wxSET:
2045 x_function = GXset;
2046 break;
2047 case wxCOPY:
2048 default:
2049 x_function = GXcopy;
2050 break;
2051 }
2052
2053 XSetFunction((Display*) m_display, (GC) m_gc, x_function);
2054 if (m_window && m_window->GetBackingPixmap())
2055 XSetFunction((Display*) m_display, (GC) m_gcBacking, x_function);
2056
2057 if ((m_logicalFunction == wxXOR) != (function == wxXOR))
2058 /* MATTHEW: [9] Need to redo pen simply */
2059 m_autoSetting |= 0x2;
2060
2061 m_logicalFunction = function;
2062
2063 }
2064
2065 void wxWindowDC::SetTextForeground( const wxColour &col )
2066 {
2067 wxCHECK_RET( Ok(), "invalid dc" );
2068
2069 m_textForegroundColour = col;
2070 }
2071
2072 void wxWindowDC::SetTextBackground( const wxColour &col )
2073 {
2074 wxCHECK_RET( Ok(), "invalid dc" );
2075
2076 m_textBackgroundColour = col;
2077 }
2078
2079 void wxWindowDC::SetBackgroundMode( int mode )
2080 {
2081 m_backgroundMode = mode;
2082 }
2083
2084 void wxWindowDC::SetPalette( const wxPalette& palette )
2085 {
2086 if (m_window)
2087 {
2088 if (palette.Ok())
2089 /* Use GetXColormap */
2090 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2091 (Colormap) palette.GetXColormap());
2092 else
2093 /* Use wxGetMainColormap */
2094 XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
2095 (Colormap) wxTheApp->GetMainColormap(m_display));
2096 }
2097 }
2098
2099 static void wxCopyRegion( WXRegion src, WXRegion& dst )
2100 {
2101 if( !dst )
2102 dst = XCreateRegion();
2103 XUnionRegion( (Region)src, (Region)src, (Region)dst );
2104 }
2105
2106 // Helper function; userRegion is the region set by calling SetClippingRegion
2107 void wxWindowDC::SetDCClipping( WXRegion userRegion )
2108 {
2109 bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().Ok();
2110 // this means that we should start the clip region from scratch,
2111 // or from the update region, if any
2112 if( !userRegion )
2113 {
2114 if( m_clipRegion )
2115 XDestroyRegion( (Region)m_clipRegion );
2116 m_clipRegion = (WXRegion)NULL;
2117
2118 if( hasUpdateRegion )
2119 wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
2120 m_clipRegion );
2121 }
2122 // intersect the user region, if any, with the
2123 // exisiting clip region
2124 else // if( userRegion )
2125 {
2126 if( !m_clipRegion )
2127 wxCopyRegion( userRegion, m_clipRegion );
2128 else
2129 XIntersectRegion( (Region)m_clipRegion,
2130 (Region)userRegion, (Region)m_clipRegion );
2131 }
2132
2133 if( m_clipRegion )
2134 XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
2135 else
2136 XSetClipMask( (Display*)m_display, (GC)m_gc, None );
2137 }
2138
2139 void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y,
2140 wxCoord width, wxCoord height )
2141 {
2142 wxDC::DoSetClippingRegion( x, y, width, height );
2143
2144 wxRegion temp(x, y, width, height);
2145
2146 SetDCClipping(temp.GetX11Region());
2147
2148 // Needs to work differently for Pixmap: without this,
2149 // there's a nasty (Display*) m_display bug. 8/12/94
2150 if (m_window && m_window->GetBackingPixmap())
2151 {
2152 XRectangle rects[1];
2153 rects[0].x = XLOG2DEV_2(x);
2154 rects[0].y = YLOG2DEV_2(y);
2155 rects[0].width = XLOG2DEVREL(width);
2156 rects[0].height = YLOG2DEVREL(height);
2157 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2158 0, 0, rects, 1, Unsorted);
2159 }
2160 }
2161
2162 void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion& region )
2163 {
2164 wxRect box = region.GetBox();
2165
2166 wxDC::DoSetClippingRegion( box.x, box.y, box.width, box.height );
2167
2168 SetDCClipping(region.GetX11Region());
2169
2170 // Needs to work differently for Pixmap: without this,
2171 // there's a nasty (Display*) m_display bug. 8/12/94
2172 if (m_window && m_window->GetBackingPixmap())
2173 {
2174 XRectangle rects[1];
2175 rects[0].x = XLOG2DEV_2(box.x);
2176 rects[0].y = YLOG2DEV_2(box.y);
2177 rects[0].width = XLOG2DEVREL(box.width);
2178 rects[0].height = YLOG2DEVREL(box.height);
2179 XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
2180 0, 0, rects, 1, Unsorted);
2181 }
2182 }
2183
2184
2185 void wxWindowDC::DestroyClippingRegion()
2186 {
2187 wxDC::DestroyClippingRegion();
2188
2189 SetDCClipping(NULL);
2190
2191 if (m_window && m_window->GetBackingPixmap())
2192 XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
2193 }
2194
2195 // Resolution in pixels per logical inch
2196 wxSize wxWindowDC::GetPPI() const
2197 {
2198 // TODO
2199 return wxSize(100, 100);
2200 }
2201
2202 int wxWindowDC::GetDepth() const
2203 {
2204 // TODO
2205 return 24;
2206 }
2207
2208
2209
2210
2211 // ----------------------------------------------------------------------------
2212 // wxPaintDC
2213 // ----------------------------------------------------------------------------
2214
2215 wxPaintDC::wxPaintDC(wxWindow* win) : wxWindowDC(win)
2216 {
2217 // Set the clipping region.to the update region
2218 SetDCClipping((WXRegion)NULL);
2219 }
2220
2221 wxPaintDC::~wxPaintDC()
2222 {
2223 if (m_window)
2224 m_window->ClearUpdateRegion();
2225 SetDCClipping((WXRegion)NULL);
2226 }
2227
2228 // ----------------------------------------------------------------------------
2229 // private functions
2230 // ----------------------------------------------------------------------------
2231
2232 /*
2233 Used when copying between drawables on different (Display*) m_displays. Not
2234 very fast, but better than giving up.
2235 */
2236
2237 static void XCopyRemote(Display *src_display, Display *dest_display,
2238 Drawable src, Drawable dest,
2239 GC destgc,
2240 int srcx, int srcy,
2241 unsigned int w, unsigned int h,
2242 int destx, int desty,
2243 bool more, XImage **cache)
2244 {
2245 XImage *image, *destimage;
2246 Colormap destcm, srccm;
2247 static const int CACHE_SIZE = 256;
2248
2249 unsigned int i, j;
2250 unsigned long cachesrc[CACHE_SIZE], cachedest[CACHE_SIZE];
2251 int k, cache_pos, all_cache;
2252
2253 if (!cache || !*cache)
2254 image = XGetImage(src_display, src, srcx, srcy, w, h, AllPlanes, ZPixmap);
2255 else
2256 image = *cache;
2257
2258 destimage = XGetImage(dest_display, dest, destx, desty, w, h, AllPlanes, ZPixmap);
2259
2260 srccm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) src_display);
2261 destcm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dest_display);
2262
2263 cache_pos = 0;
2264 all_cache = False;
2265
2266 for (i = 0; i < w; i++)
2267 for (j = 0; j < h; j++) {
2268 unsigned long pixel;
2269 XColor xcol;
2270
2271 pixel = XGetPixel(image, i, j);
2272 for (k = cache_pos; k--; )
2273 if (cachesrc[k] == pixel) {
2274 pixel = cachedest[k];
2275 goto install;
2276 }
2277 if (all_cache)
2278 for (k = CACHE_SIZE; k-- > cache_pos; )
2279 if (cachesrc[k] == pixel) {
2280 pixel = cachedest[k];
2281 goto install;
2282 }
2283
2284 cachesrc[cache_pos] = xcol.pixel = pixel;
2285 XQueryColor(src_display, srccm, &xcol);
2286 if (!XAllocColor(dest_display, destcm, &xcol))
2287 xcol.pixel = 0;
2288 cachedest[cache_pos] = pixel = xcol.pixel;
2289
2290 if (++cache_pos >= CACHE_SIZE) {
2291 cache_pos = 0;
2292 all_cache = true;
2293 }
2294
2295 install:
2296 XPutPixel(destimage, i, j, pixel);
2297 }
2298
2299 XPutImage(dest_display, dest, destgc, destimage, 0, 0, destx, desty, w, h);
2300 XDestroyImage(destimage);
2301
2302 if (more)
2303 *cache = image;
2304 else
2305 XDestroyImage(image);
2306 }
2307
2308 #if 0
2309
2310 /* Helper function for 16-bit fonts */
2311 static int str16len(const char *s)
2312 {
2313 int count = 0;
2314
2315 while (s[0] && s[1]) {
2316 count++;
2317 s += 2;
2318 }
2319
2320 return count;
2321 }
2322
2323 #endif // 0
wxWidgets (Impactor)