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[wxWidgets.git] / src / gtk / dcclient.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/dcclient.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // RCS-ID: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Chris Breeze
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __VMS
14 #define XCopyPlane XCOPYPLANE
15 #endif
16
17 #include "wx/dcclient.h"
18
19 #ifndef WX_PRECOMP
20 #include "wx/window.h"
21 #include "wx/log.h"
22 #include "wx/dcmemory.h"
23 #include "wx/math.h" // for floating-point functions
24 #include "wx/image.h"
25 #include "wx/module.h"
26 #endif
27
28 #include "wx/fontutil.h"
29 #include "wx/scrolwin.h"
30
31 #include "wx/gtk/win_gtk.h"
32 #include "wx/gtk/private.h"
33
34 #include <gdk/gdkx.h>
35
36 //-----------------------------------------------------------------------------
37 // local defines
38 //-----------------------------------------------------------------------------
39
40 #define USE_PAINT_REGION 1
41
42 //-----------------------------------------------------------------------------
43 // local data
44 //-----------------------------------------------------------------------------
45
46 #include "bdiag.xbm"
47 #include "fdiag.xbm"
48 #include "cdiag.xbm"
49 #include "horiz.xbm"
50 #include "verti.xbm"
51 #include "cross.xbm"
52 #define num_hatches 6
53
54 #define IS_15_PIX_HATCH(s) ((s)==wxCROSSDIAG_HATCH || (s)==wxHORIZONTAL_HATCH || (s)==wxVERTICAL_HATCH)
55 #define IS_16_PIX_HATCH(s) ((s)!=wxCROSSDIAG_HATCH && (s)!=wxHORIZONTAL_HATCH && (s)!=wxVERTICAL_HATCH)
56
57
58 static GdkPixmap *hatches[num_hatches];
59 static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
60
61 extern GtkWidget *wxGetRootWindow();
62
63 //-----------------------------------------------------------------------------
64 // constants
65 //-----------------------------------------------------------------------------
66
67 const double RAD2DEG = 180.0 / M_PI;
68
69 // ----------------------------------------------------------------------------
70 // private functions
71 // ----------------------------------------------------------------------------
72
73 static inline double dmax(double a, double b) { return a > b ? a : b; }
74 static inline double dmin(double a, double b) { return a < b ? a : b; }
75
76 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
77
78 //-----------------------------------------------------------------------------
79 // temporary implementation of the missing GDK function
80 //-----------------------------------------------------------------------------
81
82 #include "gdk/gdkprivate.h"
83
84 static
85 void gdk_wx_draw_bitmap(GdkDrawable *drawable,
86 GdkGC *gc,
87 GdkDrawable *src,
88 gint xsrc,
89 gint ysrc,
90 gint xdest,
91 gint ydest,
92 gint width,
93 gint height)
94 {
95 wxCHECK_RET( drawable, _T("NULL drawable in gdk_wx_draw_bitmap") );
96 wxCHECK_RET( src, _T("NULL src in gdk_wx_draw_bitmap") );
97 wxCHECK_RET( gc, _T("NULL gc in gdk_wx_draw_bitmap") );
98
99 gint src_width, src_height;
100 gdk_drawable_get_size(src, &src_width, &src_height);
101 if (width == -1) width = src_width;
102 if (height == -1) height = src_height;
103
104 XCopyPlane( GDK_WINDOW_XDISPLAY(drawable),
105 GDK_WINDOW_XID(src),
106 GDK_WINDOW_XID(drawable),
107 GDK_GC_XGC(gc),
108 xsrc, ysrc,
109 width, height,
110 0, 0,
111 1 );
112 }
113
114 //-----------------------------------------------------------------------------
115 // Implement Pool of Graphic contexts. Creating them takes too much time.
116 //-----------------------------------------------------------------------------
117
118 enum wxPoolGCType
119 {
120 wxGC_ERROR = 0,
121 wxTEXT_MONO,
122 wxBG_MONO,
123 wxPEN_MONO,
124 wxBRUSH_MONO,
125 wxTEXT_COLOUR,
126 wxBG_COLOUR,
127 wxPEN_COLOUR,
128 wxBRUSH_COLOUR,
129 wxTEXT_SCREEN,
130 wxBG_SCREEN,
131 wxPEN_SCREEN,
132 wxBRUSH_SCREEN
133 };
134
135 struct wxGC
136 {
137 GdkGC *m_gc;
138 wxPoolGCType m_type;
139 bool m_used;
140 };
141
142 #define GC_POOL_ALLOC_SIZE 100
143
144 static int wxGCPoolSize = 0;
145
146 static wxGC *wxGCPool = NULL;
147
148 static void wxInitGCPool()
149 {
150 // This really could wait until the first call to
151 // wxGetPoolGC, but we will make the first allocation
152 // now when other initialization is being performed.
153
154 // Set initial pool size.
155 wxGCPoolSize = GC_POOL_ALLOC_SIZE;
156
157 // Allocate initial pool.
158 wxGCPool = (wxGC *)malloc(wxGCPoolSize * sizeof(wxGC));
159 if (wxGCPool == NULL)
160 {
161 // If we cannot malloc, then fail with error
162 // when debug is enabled. If debug is not enabled,
163 // the problem will eventually get caught
164 // in wxGetPoolGC.
165 wxFAIL_MSG( wxT("Cannot allocate GC pool") );
166 return;
167 }
168
169 // Zero initial pool.
170 memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));
171 }
172
173 static void wxCleanUpGCPool()
174 {
175 for (int i = 0; i < wxGCPoolSize; i++)
176 {
177 if (wxGCPool[i].m_gc)
178 g_object_unref (wxGCPool[i].m_gc);
179 }
180
181 free(wxGCPool);
182 wxGCPool = NULL;
183 wxGCPoolSize = 0;
184 }
185
186 static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
187 {
188 wxGC *pptr;
189
190 // Look for an available GC.
191 for (int i = 0; i < wxGCPoolSize; i++)
192 {
193 if (!wxGCPool[i].m_gc)
194 {
195 wxGCPool[i].m_gc = gdk_gc_new( window );
196 gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE );
197 wxGCPool[i].m_type = type;
198 wxGCPool[i].m_used = false;
199 }
200 if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
201 {
202 wxGCPool[i].m_used = true;
203 return wxGCPool[i].m_gc;
204 }
205 }
206
207 // We did not find an available GC.
208 // We need to grow the GC pool.
209 pptr = (wxGC *)realloc(wxGCPool,
210 (wxGCPoolSize + GC_POOL_ALLOC_SIZE)*sizeof(wxGC));
211 if (pptr != NULL)
212 {
213 // Initialize newly allocated pool.
214 wxGCPool = pptr;
215 memset(&wxGCPool[wxGCPoolSize], 0,
216 GC_POOL_ALLOC_SIZE*sizeof(wxGC));
217
218 // Initialize entry we will return.
219 wxGCPool[wxGCPoolSize].m_gc = gdk_gc_new( window );
220 gdk_gc_set_exposures( wxGCPool[wxGCPoolSize].m_gc, FALSE );
221 wxGCPool[wxGCPoolSize].m_type = type;
222 wxGCPool[wxGCPoolSize].m_used = true;
223
224 // Set new value of pool size.
225 wxGCPoolSize += GC_POOL_ALLOC_SIZE;
226
227 // Return newly allocated entry.
228 return wxGCPool[wxGCPoolSize-GC_POOL_ALLOC_SIZE].m_gc;
229 }
230
231 // The realloc failed. Fall through to error.
232 wxFAIL_MSG( wxT("No GC available") );
233
234 return (GdkGC*) NULL;
235 }
236
237 static void wxFreePoolGC( GdkGC *gc )
238 {
239 for (int i = 0; i < wxGCPoolSize; i++)
240 {
241 if (wxGCPool[i].m_gc == gc)
242 {
243 wxGCPool[i].m_used = false;
244 return;
245 }
246 }
247
248 wxFAIL_MSG( wxT("Wrong GC") );
249 }
250
251 //-----------------------------------------------------------------------------
252 // wxWindowDC
253 //-----------------------------------------------------------------------------
254
255 #if wxUSE_NEW_DC
256 IMPLEMENT_ABSTRACT_CLASS(wxGTKWindowImplDC, wxGTKImplDC)
257 #else
258 IMPLEMENT_ABSTRACT_CLASS(wxWindowDC, wxDC)
259 #endif
260
261 #if wxUSE_NEW_DC
262 wxGTKWindowImplDC::wxGTKWindowImplDC( wxDC *owner ) :
263 wxGTKImplDC( owner )
264 #else
265 wxWindowDC::wxWindowDC()
266 #endif
267 {
268 m_penGC = (GdkGC *) NULL;
269 m_brushGC = (GdkGC *) NULL;
270 m_textGC = (GdkGC *) NULL;
271 m_bgGC = (GdkGC *) NULL;
272 m_cmap = (GdkColormap *) NULL;
273 m_isScreenDC = false;
274 m_owningWindow = (wxWindow *)NULL;
275 m_context = (PangoContext *)NULL;
276 m_layout = (PangoLayout *)NULL;
277 m_fontdesc = (PangoFontDescription *)NULL;
278 }
279
280 #if wxUSE_NEW_DC
281 wxGTKWindowImplDC::wxGTKWindowImplDC( wxDC *owner, wxWindow *window ) :
282 wxGTKImplDC( owner )
283 #else
284 wxWindowDC::wxWindowDC( wxWindow *window )
285 #endif
286 {
287 wxASSERT_MSG( window, wxT("DC needs a window") );
288
289 m_penGC = (GdkGC *) NULL;
290 m_brushGC = (GdkGC *) NULL;
291 m_textGC = (GdkGC *) NULL;
292 m_bgGC = (GdkGC *) NULL;
293 m_cmap = (GdkColormap *) NULL;
294 m_owningWindow = (wxWindow *)NULL;
295 m_isScreenDC = false;
296 m_font = window->GetFont();
297
298 GtkWidget *widget = window->m_wxwindow;
299
300 // Some controls don't have m_wxwindow - like wxStaticBox, but the user
301 // code should still be able to create wxClientDCs for them, so we will
302 // use the parent window here then.
303 if ( !widget )
304 {
305 window = window->GetParent();
306 widget = window->m_wxwindow;
307 }
308
309 wxASSERT_MSG( widget, wxT("DC needs a widget") );
310
311 m_context = window->GtkGetPangoDefaultContext();
312 m_layout = pango_layout_new( m_context );
313 m_fontdesc = pango_font_description_copy( widget->style->font_desc );
314
315 GtkPizza *pizza = GTK_PIZZA( widget );
316 m_window = pizza->bin_window;
317
318 // Window not realized ?
319 if (!m_window)
320 {
321 // Don't report problems as per MSW.
322 m_ok = true;
323
324 return;
325 }
326
327 m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget );
328
329 SetUpDC();
330
331 /* this must be done after SetUpDC, bacause SetUpDC calls the
332 repective SetBrush, SetPen, SetBackground etc functions
333 to set up the DC. SetBackground call m_owner->SetBackground
334 and this might not be desired as the standard dc background
335 is white whereas a window might assume gray to be the
336 standard (as e.g. wxStatusBar) */
337
338 m_owningWindow = window;
339
340 if (m_owningWindow && m_owningWindow->m_wxwindow &&
341 (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
342 {
343 // reverse sense
344 m_signX = -1;
345
346 // origin in the upper right corner
347 m_deviceOriginX = m_owningWindow->GetClientSize().x;
348 }
349 }
350
351 wxGTKWindowImplDC::~wxGTKWindowImplDC()
352 {
353 Destroy();
354
355 if (m_layout)
356 g_object_unref (m_layout);
357 if (m_fontdesc)
358 pango_font_description_free( m_fontdesc );
359 }
360
361 void wxGTKWindowImplDC::SetUpDC( bool isMemDC )
362 {
363 m_ok = true;
364
365 wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
366
367 bool done = false;
368
369 if (isMemDC)
370 {
371 wxGTKMemoryImplDC *mem_dc = (wxGTKMemoryImplDC*) this;
372 if (mem_dc->GetSelectedBitmap().GetDepth() == 1)
373 {
374 m_penGC = wxGetPoolGC( m_window, wxPEN_MONO );
375 m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO );
376 m_textGC = wxGetPoolGC( m_window, wxTEXT_MONO );
377 m_bgGC = wxGetPoolGC( m_window, wxBG_MONO );
378 done = true;
379 }
380 }
381
382 if (!done)
383 {
384 if (m_isScreenDC)
385 {
386 m_penGC = wxGetPoolGC( m_window, wxPEN_SCREEN );
387 m_brushGC = wxGetPoolGC( m_window, wxBRUSH_SCREEN );
388 m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN );
389 m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN );
390 }
391 else
392 {
393 m_penGC = wxGetPoolGC( m_window, wxPEN_COLOUR );
394 m_brushGC = wxGetPoolGC( m_window, wxBRUSH_COLOUR );
395 m_textGC = wxGetPoolGC( m_window, wxTEXT_COLOUR );
396 m_bgGC = wxGetPoolGC( m_window, wxBG_COLOUR );
397 }
398 }
399
400 /* background colour */
401 m_backgroundBrush = *wxWHITE_BRUSH;
402 m_backgroundBrush.GetColour().CalcPixel( m_cmap );
403 #ifdef __WXGTK24__
404 const GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor();
405 #else
406 GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor();
407 #endif
408
409 /* m_textGC */
410 m_textForegroundColour.CalcPixel( m_cmap );
411 gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
412
413 m_textBackgroundColour.CalcPixel( m_cmap );
414 gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
415
416 gdk_gc_set_fill( m_textGC, GDK_SOLID );
417
418 gdk_gc_set_colormap( m_textGC, m_cmap );
419
420 /* m_penGC */
421 m_pen.GetColour().CalcPixel( m_cmap );
422 gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
423 gdk_gc_set_background( m_penGC, bg_col );
424
425 gdk_gc_set_line_attributes( m_penGC, 0, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_ROUND );
426
427 /* m_brushGC */
428 m_brush.GetColour().CalcPixel( m_cmap );
429 gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
430 gdk_gc_set_background( m_brushGC, bg_col );
431
432 gdk_gc_set_fill( m_brushGC, GDK_SOLID );
433
434 /* m_bgGC */
435 gdk_gc_set_background( m_bgGC, bg_col );
436 gdk_gc_set_foreground( m_bgGC, bg_col );
437
438 gdk_gc_set_fill( m_bgGC, GDK_SOLID );
439
440 /* ROPs */
441 gdk_gc_set_function( m_textGC, GDK_COPY );
442 gdk_gc_set_function( m_brushGC, GDK_COPY );
443 gdk_gc_set_function( m_penGC, GDK_COPY );
444
445 /* clipping */
446 gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
447 gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
448 gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
449 gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
450
451 if (!hatch_bitmap)
452 {
453 hatch_bitmap = hatches;
454 hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height );
455 hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height );
456 hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height );
457 hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height );
458 hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height );
459 hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height );
460 }
461 }
462
463 void wxGTKWindowImplDC::DoGetSize( int* width, int* height ) const
464 {
465 wxCHECK_RET( m_owningWindow, _T("GetSize() doesn't work without window") );
466
467 m_owningWindow->GetSize(width, height);
468 }
469
470 bool wxGTKWindowImplDC::DoFloodFill(wxCoord x, wxCoord y,
471 const wxColour& col, int style)
472 {
473 #if wxUSE_IMAGE
474 extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
475 const wxColour & col, int style);
476
477 return wxDoFloodFill( GetOwner(), x, y, col, style);
478 #else
479 return false;
480 #endif
481 }
482
483 bool wxGTKWindowImplDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
484 {
485 #if wxUSE_IMAGE
486 // Generic (and therefore rather inefficient) method.
487 // Could be improved.
488 wxMemoryDC memdc;
489 wxBitmap bitmap(1, 1);
490 memdc.SelectObject(bitmap);
491 memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1);
492 memdc.SelectObject(wxNullBitmap);
493
494 wxImage image = bitmap.ConvertToImage();
495 col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
496 return true;
497 #else // !wxUSE_IMAGE
498 return false;
499 #endif // wxUSE_IMAGE/!wxUSE_IMAGE
500 }
501
502 void wxGTKWindowImplDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
503 {
504 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
505
506 if (m_pen.GetStyle() != wxTRANSPARENT)
507 {
508 if (m_window)
509 gdk_draw_line( m_window, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
510
511 CalcBoundingBox(x1, y1);
512 CalcBoundingBox(x2, y2);
513 }
514 }
515
516 void wxGTKWindowImplDC::DoCrossHair( wxCoord x, wxCoord y )
517 {
518 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
519
520 if (m_pen.GetStyle() != wxTRANSPARENT)
521 {
522 int w = 0;
523 int h = 0;
524 GetOwner()->GetSize( &w, &h );
525 wxCoord xx = XLOG2DEV(x);
526 wxCoord yy = YLOG2DEV(y);
527 if (m_window)
528 {
529 gdk_draw_line( m_window, m_penGC, 0, yy, XLOG2DEVREL(w), yy );
530 gdk_draw_line( m_window, m_penGC, xx, 0, xx, YLOG2DEVREL(h) );
531 }
532 }
533 }
534
535 void wxGTKWindowImplDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
536 wxCoord xc, wxCoord yc )
537 {
538 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
539
540 wxCoord xx1 = XLOG2DEV(x1);
541 wxCoord yy1 = YLOG2DEV(y1);
542 wxCoord xx2 = XLOG2DEV(x2);
543 wxCoord yy2 = YLOG2DEV(y2);
544 wxCoord xxc = XLOG2DEV(xc);
545 wxCoord yyc = YLOG2DEV(yc);
546 double dx = xx1 - xxc;
547 double dy = yy1 - yyc;
548 double radius = sqrt((double)(dx*dx+dy*dy));
549 wxCoord r = (wxCoord)radius;
550 double radius1, radius2;
551
552 if (xx1 == xx2 && yy1 == yy2)
553 {
554 radius1 = 0.0;
555 radius2 = 360.0;
556 }
557 else if ( wxIsNullDouble(radius) )
558 {
559 radius1 =
560 radius2 = 0.0;
561 }
562 else
563 {
564 radius1 = (xx1 - xxc == 0) ?
565 (yy1 - yyc < 0) ? 90.0 : -90.0 :
566 -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
567 radius2 = (xx2 - xxc == 0) ?
568 (yy2 - yyc < 0) ? 90.0 : -90.0 :
569 -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
570 }
571 wxCoord alpha1 = wxCoord(radius1 * 64.0);
572 wxCoord alpha2 = wxCoord((radius2 - radius1) * 64.0);
573 while (alpha2 <= 0) alpha2 += 360*64;
574 while (alpha1 > 360*64) alpha1 -= 360*64;
575
576 if (m_window)
577 {
578 if (m_brush.GetStyle() != wxTRANSPARENT)
579 {
580 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
581 {
582 gdk_gc_set_ts_origin( m_textGC,
583 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
584 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
585 gdk_draw_arc( m_window, m_textGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
586 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
587 } else
588 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
589 {
590 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
591 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
592 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
593 } else
594 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
595 {
596 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
597 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
598 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
599 } else
600 if (m_brush.GetStyle() == wxSTIPPLE)
601 {
602 gdk_gc_set_ts_origin( m_brushGC,
603 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
604 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
605 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
606 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
607 }
608 else
609 {
610 gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
611 }
612 }
613
614 if (m_pen.GetStyle() != wxTRANSPARENT)
615 {
616 gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
617
618 if ((m_brush.GetStyle() != wxTRANSPARENT) && (alpha2 - alpha1 != 360*64))
619 {
620 gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc );
621 gdk_draw_line( m_window, m_penGC, xxc, yyc, xx2, yy2 );
622 }
623 }
624 }
625
626 CalcBoundingBox (x1, y1);
627 CalcBoundingBox (x2, y2);
628 }
629
630 void wxGTKWindowImplDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
631 {
632 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
633
634 wxCoord xx = XLOG2DEV(x);
635 wxCoord yy = YLOG2DEV(y);
636 wxCoord ww = m_signX * XLOG2DEVREL(width);
637 wxCoord hh = m_signY * YLOG2DEVREL(height);
638
639 // CMB: handle -ve width and/or height
640 if (ww < 0) { ww = -ww; xx = xx - ww; }
641 if (hh < 0) { hh = -hh; yy = yy - hh; }
642
643 if (m_window)
644 {
645 wxCoord start = wxCoord(sa * 64.0);
646 wxCoord end = wxCoord((ea-sa) * 64.0);
647
648 if (m_brush.GetStyle() != wxTRANSPARENT)
649 {
650 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
651 {
652 gdk_gc_set_ts_origin( m_textGC,
653 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
654 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
655 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, start, end );
656 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
657 } else
658 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
659 {
660 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
661 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
662 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
663 } else
664 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
665 {
666 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
667 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
668 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
669 } else
670 if (m_brush.GetStyle() == wxSTIPPLE)
671 {
672 gdk_gc_set_ts_origin( m_brushGC,
673 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
674 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
675 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
676 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
677 }
678 else
679 {
680 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
681 }
682 }
683
684 if (m_pen.GetStyle() != wxTRANSPARENT)
685 gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );
686 }
687
688 CalcBoundingBox (x, y);
689 CalcBoundingBox (x + width, y + height);
690 }
691
692 void wxGTKWindowImplDC::DoDrawPoint( wxCoord x, wxCoord y )
693 {
694 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
695
696 if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window)
697 gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
698
699 CalcBoundingBox (x, y);
700 }
701
702 void wxGTKWindowImplDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
703 {
704 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
705
706 if (m_pen.GetStyle() == wxTRANSPARENT) return;
707 if (n <= 0) return;
708
709 //Check, if scaling is necessary
710 const bool doScale =
711 xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
712
713 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
714 GdkPoint* gpts = reinterpret_cast<GdkPoint*>(points);
715
716 if (doScale)
717 gpts = new GdkPoint[n];
718
719 for (int i = 0; i < n; i++)
720 {
721 if (doScale)
722 {
723 gpts[i].x = XLOG2DEV(points[i].x + xoffset);
724 gpts[i].y = YLOG2DEV(points[i].y + yoffset);
725 }
726 CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
727 }
728
729 if (m_window)
730 gdk_draw_lines( m_window, m_penGC, gpts, n);
731
732 if (doScale)
733 delete[] gpts;
734 }
735
736 void wxGTKWindowImplDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
737 {
738 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
739
740 if (n <= 0) return;
741
742 //Check, if scaling is necessary
743 const bool doScale =
744 xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
745
746 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
747 GdkPoint* gdkpoints = reinterpret_cast<GdkPoint*>(points);
748
749 if (doScale)
750 gdkpoints = new GdkPoint[n];
751
752 int i;
753 for (i = 0 ; i < n ; i++)
754 {
755 if (doScale)
756 {
757 gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
758 gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
759 }
760 CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
761 }
762
763 if (m_window)
764 {
765 if (m_brush.GetStyle() != wxTRANSPARENT)
766 {
767 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
768 {
769 gdk_gc_set_ts_origin( m_textGC,
770 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
771 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
772 gdk_draw_polygon( m_window, m_textGC, TRUE, gdkpoints, n );
773 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
774 } else
775 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
776 {
777 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
778 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
779 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
780 } else
781 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
782 {
783 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
784 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
785 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
786 } else
787 if (m_brush.GetStyle() == wxSTIPPLE)
788 {
789 gdk_gc_set_ts_origin( m_brushGC,
790 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
791 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
792 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
793 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
794 }
795 else
796 {
797 gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
798 }
799 }
800
801 if (m_pen.GetStyle() != wxTRANSPARENT)
802 {
803 /*
804 for (i = 0 ; i < n ; i++)
805 {
806 gdk_draw_line( m_window, m_penGC,
807 gdkpoints[i%n].x,
808 gdkpoints[i%n].y,
809 gdkpoints[(i+1)%n].x,
810 gdkpoints[(i+1)%n].y);
811 }
812 */
813 gdk_draw_polygon( m_window, m_penGC, FALSE, gdkpoints, n );
814
815 }
816 }
817
818 if (doScale)
819 delete[] gdkpoints;
820 }
821
822 void wxGTKWindowImplDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
823 {
824 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
825
826 wxCoord xx = XLOG2DEV(x);
827 wxCoord yy = YLOG2DEV(y);
828 wxCoord ww = m_signX * XLOG2DEVREL(width);
829 wxCoord hh = m_signY * YLOG2DEVREL(height);
830
831 // CMB: draw nothing if transformed w or h is 0
832 if (ww == 0 || hh == 0) return;
833
834 // CMB: handle -ve width and/or height
835 if (ww < 0) { ww = -ww; xx = xx - ww; }
836 if (hh < 0) { hh = -hh; yy = yy - hh; }
837
838 if (m_window)
839 {
840 if (m_brush.GetStyle() != wxTRANSPARENT)
841 {
842 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
843 {
844 gdk_gc_set_ts_origin( m_textGC,
845 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
846 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
847 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy, ww, hh );
848 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
849 } else
850 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
851 {
852 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
853 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
854 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
855 } else
856 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
857 {
858 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
859 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
860 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
861 } else
862 if (m_brush.GetStyle() == wxSTIPPLE)
863 {
864 gdk_gc_set_ts_origin( m_brushGC,
865 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
866 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
867 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
868 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
869 }
870 else
871 {
872 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
873 }
874 }
875
876 if (m_pen.GetStyle() != wxTRANSPARENT)
877 {
878 #if 1
879 if ((m_pen.GetWidth() == 2) && (m_pen.GetCap() == wxCAP_ROUND) &&
880 (m_pen.GetJoin() == wxJOIN_ROUND) && (m_pen.GetStyle() == wxSOLID))
881 {
882 // Use 2 1-line rects instead
883 gdk_gc_set_line_attributes( m_penGC, 1, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
884
885 if (m_signX == -1)
886 {
887 // Different for RTL
888 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx+1, yy, ww-2, hh-2 );
889 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy-1, ww, hh );
890 }
891 else
892 {
893 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-2, hh-2 );
894 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx-1, yy-1, ww, hh );
895 }
896
897 // reset
898 gdk_gc_set_line_attributes( m_penGC, 2, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
899 }
900 else
901 #endif
902 {
903 // Just use X11 for other cases
904 gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
905 }
906 }
907 }
908
909 CalcBoundingBox( x, y );
910 CalcBoundingBox( x + width, y + height );
911 }
912
913 void wxGTKWindowImplDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
914 {
915 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
916
917 if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
918
919 wxCoord xx = XLOG2DEV(x);
920 wxCoord yy = YLOG2DEV(y);
921 wxCoord ww = m_signX * XLOG2DEVREL(width);
922 wxCoord hh = m_signY * YLOG2DEVREL(height);
923 wxCoord rr = XLOG2DEVREL((wxCoord)radius);
924
925 // CMB: handle -ve width and/or height
926 if (ww < 0) { ww = -ww; xx = xx - ww; }
927 if (hh < 0) { hh = -hh; yy = yy - hh; }
928
929 // CMB: if radius is zero use DrawRectangle() instead to avoid
930 // X drawing errors with small radii
931 if (rr == 0)
932 {
933 DoDrawRectangle( x, y, width, height );
934 return;
935 }
936
937 // CMB: draw nothing if transformed w or h is 0
938 if (ww == 0 || hh == 0) return;
939
940 // CMB: adjust size if outline is drawn otherwise the result is
941 // 1 pixel too wide and high
942 if (m_pen.GetStyle() != wxTRANSPARENT)
943 {
944 ww--;
945 hh--;
946 }
947
948 if (m_window)
949 {
950 // CMB: ensure dd is not larger than rectangle otherwise we
951 // get an hour glass shape
952 wxCoord dd = 2 * rr;
953 if (dd > ww) dd = ww;
954 if (dd > hh) dd = hh;
955 rr = dd / 2;
956
957 if (m_brush.GetStyle() != wxTRANSPARENT)
958 {
959 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
960 {
961 gdk_gc_set_ts_origin( m_textGC,
962 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
963 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
964 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx+rr, yy, ww-dd+1, hh );
965 gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
966 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
967 gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
968 gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
969 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
970 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
971 } else
972 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
973 {
974 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
975 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
976 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
977 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
978 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
979 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
980 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
981 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
982 } else
983 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
984 {
985 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
986 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
987 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
988 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
989 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
990 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
991 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
992 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
993 } else
994 if (m_brush.GetStyle() == wxSTIPPLE)
995 {
996 gdk_gc_set_ts_origin( m_brushGC,
997 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
998 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
999 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
1000 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
1001 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
1002 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1003 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1004 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1005 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1006 }
1007 else
1008 {
1009 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
1010 gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
1011 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
1012 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1013 gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1014 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1015 }
1016 }
1017
1018 if (m_pen.GetStyle() != wxTRANSPARENT)
1019 {
1020 gdk_draw_line( m_window, m_penGC, xx+rr+1, yy, xx+ww-rr, yy );
1021 gdk_draw_line( m_window, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh );
1022 gdk_draw_line( m_window, m_penGC, xx, yy+rr+1, xx, yy+hh-rr );
1023 gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr );
1024 gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 );
1025 gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
1026 gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
1027 gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
1028 }
1029 }
1030
1031 // this ignores the radius
1032 CalcBoundingBox( x, y );
1033 CalcBoundingBox( x + width, y + height );
1034 }
1035
1036 void wxGTKWindowImplDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
1037 {
1038 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1039
1040 wxCoord xx = XLOG2DEV(x);
1041 wxCoord yy = YLOG2DEV(y);
1042 wxCoord ww = m_signX * XLOG2DEVREL(width);
1043 wxCoord hh = m_signY * YLOG2DEVREL(height);
1044
1045 // CMB: handle -ve width and/or height
1046 if (ww < 0) { ww = -ww; xx = xx - ww; }
1047 if (hh < 0) { hh = -hh; yy = yy - hh; }
1048
1049 if (m_window)
1050 {
1051 if (m_brush.GetStyle() != wxTRANSPARENT)
1052 {
1053 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
1054 {
1055 gdk_gc_set_ts_origin( m_textGC,
1056 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
1057 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
1058 gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1059 gdk_gc_set_ts_origin( m_textGC, 0, 0 );
1060 } else
1061 if (IS_15_PIX_HATCH(m_brush.GetStyle()))
1062 {
1063 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
1064 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1065 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1066 } else
1067 if (IS_16_PIX_HATCH(m_brush.GetStyle()))
1068 {
1069 gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
1070 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1071 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1072 } else
1073 if (m_brush.GetStyle() == wxSTIPPLE)
1074 {
1075 gdk_gc_set_ts_origin( m_brushGC,
1076 m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
1077 m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
1078 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1079 gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
1080 }
1081 else
1082 {
1083 gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
1084 }
1085 }
1086
1087 if (m_pen.GetStyle() != wxTRANSPARENT)
1088 gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
1089 }
1090
1091 CalcBoundingBox( x, y );
1092 CalcBoundingBox( x + width, y + height );
1093 }
1094
1095 void wxGTKWindowImplDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
1096 {
1097 // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
1098 DoDrawBitmap( (const wxBitmap&)icon, x, y, true );
1099 }
1100
1101 void wxGTKWindowImplDC::DoDrawBitmap( const wxBitmap &bitmap,
1102 wxCoord x, wxCoord y,
1103 bool useMask )
1104 {
1105 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1106
1107 wxCHECK_RET( bitmap.IsOk(), wxT("invalid bitmap") );
1108
1109 bool is_mono = bitmap.GetDepth() == 1;
1110
1111 // scale/translate size and position
1112 int xx = XLOG2DEV(x);
1113 int yy = YLOG2DEV(y);
1114
1115 int w = bitmap.GetWidth();
1116 int h = bitmap.GetHeight();
1117
1118 if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1119 xx -= w;
1120
1121 CalcBoundingBox( x, y );
1122 CalcBoundingBox( x + w, y + h );
1123
1124 if (!m_window) return;
1125
1126 int ww = XLOG2DEVREL(w);
1127 int hh = YLOG2DEVREL(h);
1128
1129 // compare to current clipping region
1130 if (!m_currentClippingRegion.IsNull())
1131 {
1132 wxRegion tmp( xx,yy,ww,hh );
1133 tmp.Intersect( m_currentClippingRegion );
1134 if (tmp.IsEmpty())
1135 return;
1136 }
1137
1138 // scale bitmap if required
1139 wxBitmap use_bitmap = bitmap;
1140 if ((w != ww) || (h != hh))
1141 use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh );
1142
1143 // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code.
1144 // Pixbufs-based bitmaps with alpha channel don't have a mask, so we
1145 // have to call GetPixmap() here -- it converts the pixbuf into pixmap
1146 // and also creates the mask as a side-effect:
1147 if (gtk_check_version(2,2,0))
1148 use_bitmap.GetPixmap();
1149
1150 // apply mask if any
1151 GdkBitmap *mask = (GdkBitmap *) NULL;
1152 if (useMask && use_bitmap.GetMask())
1153 mask = use_bitmap.GetMask()->GetBitmap();
1154
1155 GdkGC* use_gc = is_mono ? m_textGC : m_penGC;
1156
1157 GdkBitmap *new_mask = (GdkBitmap*) NULL;
1158
1159 if (mask != NULL)
1160 {
1161 if (!m_currentClippingRegion.IsNull())
1162 {
1163 GdkColor col;
1164 new_mask = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, 1 );
1165 GdkGC *gc = gdk_gc_new( new_mask );
1166 col.pixel = 0;
1167 gdk_gc_set_foreground( gc, &col );
1168 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
1169 col.pixel = 0;
1170 gdk_gc_set_background( gc, &col );
1171 col.pixel = 1;
1172 gdk_gc_set_foreground( gc, &col );
1173 gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
1174 gdk_gc_set_clip_origin( gc, -xx, -yy );
1175 gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
1176 gdk_gc_set_stipple( gc, mask );
1177 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
1178 mask = new_mask;
1179 g_object_unref (gc);
1180 }
1181
1182 gdk_gc_set_clip_mask(use_gc, mask);
1183 gdk_gc_set_clip_origin(use_gc, xx, yy);
1184 }
1185
1186 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1187 // drawing a mono-bitmap (XBitmap) we use the current text GC
1188 if (is_mono)
1189 {
1190 GdkPixmap *bitmap2 = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, -1 );
1191 GdkGC *gc = gdk_gc_new( bitmap2 );
1192 gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
1193 gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
1194 gdk_wx_draw_bitmap( bitmap2, gc, use_bitmap.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1195
1196 gdk_draw_drawable(m_window, use_gc, bitmap2, 0, 0, xx, yy, -1, -1);
1197
1198 g_object_unref (bitmap2);
1199 g_object_unref (gc);
1200 }
1201 else
1202 {
1203 #if GTK_CHECK_VERSION(2,2,0)
1204 if (!gtk_check_version(2,2,0) && use_bitmap.HasPixbuf())
1205 {
1206 gdk_draw_pixbuf(m_window, use_gc,
1207 use_bitmap.GetPixbuf(),
1208 0, 0, xx, yy, -1, -1,
1209 GDK_RGB_DITHER_NORMAL, xx, yy);
1210 }
1211 else
1212 #endif
1213 {
1214 gdk_draw_drawable(m_window, use_gc,
1215 use_bitmap.GetPixmap(),
1216 0, 0, xx, yy, -1, -1);
1217 }
1218 }
1219
1220 // remove mask again if any
1221 if (mask != NULL)
1222 {
1223 gdk_gc_set_clip_mask(use_gc, NULL);
1224 gdk_gc_set_clip_origin(use_gc, 0, 0);
1225 if (!m_currentClippingRegion.IsNull())
1226 gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion());
1227 if (new_mask != NULL)
1228 g_object_unref(new_mask);
1229 }
1230 }
1231
1232 bool wxGTKWindowImplDC::DoBlit( wxCoord xdest, wxCoord ydest,
1233 wxCoord width, wxCoord height,
1234 wxDC *source,
1235 wxCoord xsrc, wxCoord ysrc,
1236 int logical_func,
1237 bool useMask,
1238 wxCoord xsrcMask, wxCoord ysrcMask )
1239 {
1240 wxCHECK_MSG( IsOk(), false, wxT("invalid window dc") );
1241
1242 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1243
1244 if (!m_window) return false;
1245
1246 // transform the source DC coords to the device ones
1247 xsrc = source->LogicalToDeviceX(xsrc);
1248 ysrc = source->LogicalToDeviceY(ysrc);
1249
1250 wxBitmap selected;
1251 wxMemoryDC *memDC = wxDynamicCast(source, wxMemoryDC);
1252 if ( memDC )
1253 {
1254 selected = memDC->GetSelectedBitmap();
1255 if ( !selected.IsOk() )
1256 return false;
1257 }
1258
1259 bool use_bitmap_method = false;
1260 bool is_mono = false;
1261
1262 if (xsrcMask == -1 && ysrcMask == -1)
1263 {
1264 xsrcMask = xsrc;
1265 ysrcMask = ysrc;
1266 }
1267
1268 if (selected.IsOk())
1269 {
1270 is_mono = (selected.GetDepth() == 1);
1271
1272 // we use the "XCopyArea" way to copy a memory dc into
1273 // a different window if the memory dc BOTH
1274 // a) doesn't have any mask or its mask isn't used
1275 // b) it is clipped
1276 // c) is not 1-bit
1277
1278 if (useMask && (selected.GetMask()))
1279 {
1280 // we HAVE TO use the direct way for memory dcs
1281 // that have mask since the XCopyArea doesn't know
1282 // about masks
1283 use_bitmap_method = true;
1284 }
1285 else if (is_mono)
1286 {
1287 // we HAVE TO use the direct way for memory dcs
1288 // that are bitmaps because XCopyArea doesn't cope
1289 // with different bit depths
1290 use_bitmap_method = true;
1291 }
1292 else if ((xsrc == 0) && (ysrc == 0) &&
1293 (width == selected.GetWidth()) &&
1294 (height == selected.GetHeight()))
1295 {
1296 // we SHOULD use the direct way if all of the bitmap
1297 // in the memory dc is copied in which case XCopyArea
1298 // wouldn't be able able to boost performace by reducing
1299 // the area to be scaled
1300 use_bitmap_method = true;
1301 }
1302 }
1303
1304 CalcBoundingBox( xdest, ydest );
1305 CalcBoundingBox( xdest + width, ydest + height );
1306
1307 // scale/translate size and position
1308 wxCoord xx = XLOG2DEV(xdest);
1309 wxCoord yy = YLOG2DEV(ydest);
1310
1311 wxCoord ww = XLOG2DEVREL(width);
1312 wxCoord hh = YLOG2DEVREL(height);
1313
1314 // compare to current clipping region
1315 if (!m_currentClippingRegion.IsNull())
1316 {
1317 wxRegion tmp( xx,yy,ww,hh );
1318 tmp.Intersect( m_currentClippingRegion );
1319 if (tmp.IsEmpty())
1320 return true;
1321 }
1322
1323 int old_logical_func = m_logicalFunction;
1324 SetLogicalFunction( logical_func );
1325
1326 if (use_bitmap_method)
1327 {
1328 // scale/translate bitmap size
1329 wxCoord bm_width = selected.GetWidth();
1330 wxCoord bm_height = selected.GetHeight();
1331
1332 // Get clip coords for the bitmap. If we don't
1333 // use wxBitmap::Rescale(), which can clip the
1334 // bitmap, these are the same as the original
1335 // coordinates
1336 wxCoord cx = xx;
1337 wxCoord cy = yy;
1338 wxCoord cw = ww;
1339 wxCoord ch = hh;
1340
1341 // interpret userscale of src too
1342 double xsc,ysc;
1343 memDC->GetUserScale(&xsc,&ysc);
1344 bm_width = (int) (bm_width / xsc);
1345 bm_height = (int) (bm_height / ysc);
1346
1347 wxCoord bm_ww = XLOG2DEVREL( bm_width );
1348 wxCoord bm_hh = YLOG2DEVREL( bm_height );
1349
1350 // Scale bitmap if required
1351 wxBitmap use_bitmap = selected;
1352 if ((selected.GetWidth()!= bm_ww) || ( selected.GetHeight()!= bm_hh))
1353 {
1354 // This indicates that the blitting code below will get
1355 // a clipped bitmap and therefore needs to move the origin
1356 // accordingly
1357 wxRegion tmp( xx,yy,ww,hh );
1358 if (!m_currentClippingRegion.IsNull())
1359 tmp.Intersect( m_currentClippingRegion );
1360 tmp.GetBox(cx,cy,cw,ch);
1361
1362 // Scale and clipped bitmap
1363 use_bitmap = selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh);
1364 }
1365
1366 // apply mask if any
1367 GdkBitmap *mask = (GdkBitmap *) NULL;
1368 if (useMask && use_bitmap.GetMask())
1369 mask = use_bitmap.GetMask()->GetBitmap();
1370
1371 GdkGC* use_gc = is_mono ? m_textGC : m_penGC;
1372
1373 GdkBitmap *new_mask = (GdkBitmap*) NULL;
1374
1375 if (mask != NULL)
1376 {
1377 if (!m_currentClippingRegion.IsNull())
1378 {
1379 GdkColor col;
1380 new_mask = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, 1 );
1381 GdkGC *gc = gdk_gc_new( new_mask );
1382 col.pixel = 0;
1383 gdk_gc_set_foreground( gc, &col );
1384 gdk_gc_set_ts_origin( gc, -xsrcMask, -ysrcMask);
1385 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
1386 col.pixel = 0;
1387 gdk_gc_set_background( gc, &col );
1388 col.pixel = 1;
1389 gdk_gc_set_foreground( gc, &col );
1390 gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
1391 // was: gdk_gc_set_clip_origin( gc, -xx, -yy );
1392 gdk_gc_set_clip_origin( gc, -cx, -cy );
1393 gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
1394 gdk_gc_set_stipple( gc, mask );
1395 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
1396 mask = new_mask;
1397 g_object_unref (gc);
1398 }
1399
1400 gdk_gc_set_clip_mask(use_gc, mask);
1401 if (new_mask != NULL)
1402 gdk_gc_set_clip_origin(use_gc, cx, cy);
1403 else
1404 gdk_gc_set_clip_origin(use_gc, cx - xsrcMask, cy - ysrcMask);
1405 }
1406
1407 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1408 // drawing a mono-bitmap (XBitmap) we use the current text GC
1409
1410 if (is_mono)
1411 {
1412 GdkPixmap *bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, -1 );
1413 GdkGC *gc = gdk_gc_new( bitmap );
1414 gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
1415 gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
1416 gdk_wx_draw_bitmap( bitmap, gc, use_bitmap.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1417
1418 gdk_draw_drawable(m_window, use_gc, bitmap, xsrc, ysrc, cx, cy, cw, ch);
1419
1420 g_object_unref (bitmap);
1421 g_object_unref (gc);
1422 }
1423 else
1424 {
1425 // was: gdk_draw_drawable( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
1426 gdk_draw_drawable(m_window, use_gc, use_bitmap.GetPixmap(), xsrc, ysrc, cx, cy, cw, ch);
1427 }
1428
1429 // remove mask again if any
1430 if (mask != NULL)
1431 {
1432 gdk_gc_set_clip_mask(use_gc, NULL);
1433 gdk_gc_set_clip_origin(use_gc, 0, 0);
1434 if (!m_currentClippingRegion.IsNull())
1435 gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion());
1436 }
1437
1438 if (new_mask)
1439 g_object_unref (new_mask);
1440 }
1441 else // use_bitmap_method
1442 {
1443 if (selected.IsOk() && ((width != ww) || (height != hh)))
1444 {
1445 // get clip coords
1446 wxRegion tmp( xx,yy,ww,hh );
1447 tmp.Intersect( m_currentClippingRegion );
1448 wxCoord cx,cy,cw,ch;
1449 tmp.GetBox(cx,cy,cw,ch);
1450
1451 // rescale bitmap
1452 wxBitmap bitmap = selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh );
1453
1454 // draw scaled bitmap
1455 // was: gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
1456 gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, cx, cy, -1, -1 );
1457 }
1458 else
1459 {
1460 // No scaling and not a memory dc with a mask either
1461 #if wxUSE_NEW_DC
1462 GdkWindow* window = NULL;
1463 wxImplDC *impl = source->GetImpl();
1464 wxGTKWindowImplDC *gtk_impl = wxDynamicCast(impl, wxGTKWindowImplDC);
1465 if (gtk_impl)
1466 window = gtk_impl->GetGDKWindow();
1467 #else
1468 GdkWindow* window = source->GetGDKWindow();
1469 #endif
1470 if ( !window )
1471 return false;
1472
1473 // copy including child window contents
1474 gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
1475 gdk_draw_drawable( m_window, m_penGC,
1476 window,
1477 xsrc, ysrc, xx, yy,
1478 width, height );
1479 gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
1480 }
1481 }
1482
1483 SetLogicalFunction( old_logical_func );
1484
1485 return true;
1486 }
1487
1488 void wxGTKWindowImplDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
1489 {
1490 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1491
1492 if (!m_window) return;
1493
1494 if (text.empty()) return;
1495
1496 x = XLOG2DEV(x);
1497 y = YLOG2DEV(y);
1498
1499 wxCHECK_RET( m_context, wxT("no Pango context") );
1500 wxCHECK_RET( m_layout, wxT("no Pango layout") );
1501 wxCHECK_RET( m_fontdesc, wxT("no Pango font description") );
1502
1503 gdk_pango_context_set_colormap( m_context, m_cmap );
1504
1505 bool underlined = m_font.IsOk() && m_font.GetUnderlined();
1506
1507 const wxCharBuffer data = wxGTK_CONV( text );
1508 if ( !data )
1509 return;
1510 size_t datalen = strlen(data);
1511
1512 // in Pango >= 1.16 the "underline of leading/trailing spaces" bug
1513 // has been fixed and thus the hack implemented below should never be used
1514 static bool pangoOk = !wx_pango_version_check(1, 16, 0);
1515
1516 bool needshack = underlined && !pangoOk;
1517 char *hackstring = NULL;
1518
1519 if (needshack)
1520 {
1521 // a PangoLayout which has leading/trailing spaces with underlined font
1522 // is not correctly drawn by this pango version: Pango won't underline the spaces.
1523 // This can be a problem; e.g. wxHTML rendering of underlined text relies on
1524 // this behaviour. To workaround this problem, we use a special hack here
1525 // suggested by pango maintainer Behdad Esfahbod: we prepend and append two
1526 // empty space characters and give them a dummy colour attribute.
1527 // This will force Pango to underline the leading/trailing spaces, too.
1528
1529 // need to realloc the string to prepend & append our special characters
1530 hackstring = (char*)malloc((datalen+7)*sizeof(char));
1531
1532 // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1533 strcpy(hackstring, "\342\200\214");
1534
1535 // copy the user string
1536 memcpy(&hackstring[3], data, datalen);
1537
1538 // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1539 strcpy(&hackstring[datalen+3], "\342\200\214");
1540
1541 // the special characters that we added require 6 additional bytes:
1542 datalen += 6;
1543
1544 pango_layout_set_text(m_layout, hackstring, datalen);
1545 }
1546 else
1547 {
1548 pango_layout_set_text(m_layout, data, datalen);
1549 }
1550
1551 if (underlined)
1552 {
1553 PangoAttrList *attrs = pango_attr_list_new();
1554 PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
1555 a->start_index = 0;
1556 a->end_index = datalen;
1557 pango_attr_list_insert(attrs, a);
1558
1559 if (needshack)
1560 {
1561 // dummy colour for the leading space
1562 a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1563 a->start_index = 0;
1564 a->end_index = 1;
1565 pango_attr_list_insert(attrs, a);
1566
1567 // dummy colour for the trailing space
1568 a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1569 a->start_index = datalen - 1;
1570 a->end_index = datalen;
1571 pango_attr_list_insert(attrs, a);
1572 }
1573
1574 pango_layout_set_attributes(m_layout, attrs);
1575 pango_attr_list_unref(attrs);
1576 }
1577
1578 int w,h;
1579
1580 if (fabs(m_scaleY - 1.0) > 0.00001)
1581 {
1582 // If there is a user or actually any scale applied to
1583 // the device context, scale the font.
1584
1585 // scale font description
1586 gint oldSize = pango_font_description_get_size( m_fontdesc );
1587 double size = oldSize;
1588 size = size * m_scaleY;
1589 pango_font_description_set_size( m_fontdesc, (gint)size );
1590
1591 // actually apply scaled font
1592 pango_layout_set_font_description( m_layout, m_fontdesc );
1593
1594 pango_layout_get_pixel_size( m_layout, &w, &h );
1595 if ( m_backgroundMode == wxSOLID )
1596 {
1597 gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor());
1598 gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
1599 gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
1600 }
1601
1602 // Draw layout.
1603 if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1604 gdk_draw_layout( m_window, m_textGC, x-w, y, m_layout );
1605 else
1606 gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
1607
1608 // reset unscaled size
1609 pango_font_description_set_size( m_fontdesc, oldSize );
1610
1611 // actually apply unscaled font
1612 pango_layout_set_font_description( m_layout, m_fontdesc );
1613 }
1614 else
1615 {
1616 pango_layout_get_pixel_size( m_layout, &w, &h );
1617 if ( m_backgroundMode == wxSOLID )
1618 {
1619 gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor());
1620 gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
1621 gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
1622 }
1623
1624 // Draw layout.
1625 if (m_owningWindow && m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft)
1626 gdk_draw_layout( m_window, m_textGC, x-w, y, m_layout );
1627 else
1628 gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
1629 }
1630
1631 if (underlined)
1632 {
1633 // undo underline attributes setting:
1634 pango_layout_set_attributes(m_layout, NULL);
1635 }
1636
1637 wxCoord width = w;
1638 wxCoord height = h;
1639
1640 width = wxCoord(width / m_scaleX);
1641 height = wxCoord(height / m_scaleY);
1642 CalcBoundingBox (x + width, y + height);
1643 CalcBoundingBox (x, y);
1644
1645 if (hackstring)
1646 free(hackstring);
1647 }
1648
1649
1650 // TODO: There is an example of rotating text with GTK2 that would probably be
1651 // a better approach here:
1652 // http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
1653
1654 void wxGTKWindowImplDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
1655 {
1656 #if wxUSE_IMAGE
1657 if (!m_window || text.empty())
1658 return;
1659
1660 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1661
1662 if ( wxIsNullDouble(angle) )
1663 {
1664 DoDrawText(text, x, y);
1665 return;
1666 }
1667
1668 wxCoord w;
1669 wxCoord h;
1670
1671 // TODO: implement later without GdkFont for GTK 2.0
1672 DoGetTextExtent(text, &w, &h, NULL,NULL, &m_font);
1673
1674 // draw the string normally
1675 wxBitmap src(w, h);
1676 wxMemoryDC dc;
1677 dc.SelectObject(src);
1678 dc.SetFont(GetFont());
1679 dc.SetBackground(*wxBLACK_BRUSH);
1680 dc.SetBrush(*wxBLACK_BRUSH);
1681 dc.Clear();
1682 dc.SetTextForeground( *wxWHITE );
1683 dc.DrawText(text, 0, 0);
1684 dc.SelectObject(wxNullBitmap);
1685
1686 // Calculate the size of the rotated bounding box.
1687 double rad = DegToRad(angle);
1688 double dx = cos(rad),
1689 dy = sin(rad);
1690
1691 // the rectngle vertices are counted clockwise with the first one being at
1692 // (0, 0) (or, rather, at (x, y))
1693 double x2 = w*dx,
1694 y2 = -w*dy; // y axis points to the bottom, hence minus
1695 double x4 = h*dy,
1696 y4 = h*dx;
1697 double x3 = x4 + x2,
1698 y3 = y4 + y2;
1699
1700 // calc max and min
1701 wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5),
1702 maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5),
1703 minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
1704 minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
1705
1706
1707 wxImage image = src.ConvertToImage();
1708
1709 image.ConvertColourToAlpha( m_textForegroundColour.Red(),
1710 m_textForegroundColour.Green(),
1711 m_textForegroundColour.Blue() );
1712 image = image.Rotate( rad, wxPoint(0,0) );
1713
1714 int i_angle = (int) angle;
1715 i_angle = i_angle % 360;
1716 if (i_angle < 0)
1717 i_angle += 360;
1718 int xoffset = 0;
1719 if ((i_angle >= 90.0) && (i_angle < 270.0))
1720 xoffset = image.GetWidth();
1721 int yoffset = 0;
1722 if ((i_angle >= 0.0) && (i_angle < 180.0))
1723 yoffset = image.GetHeight();
1724
1725 if ((i_angle >= 0) && (i_angle < 90))
1726 yoffset -= (int)( cos(rad)*h );
1727 if ((i_angle >= 90) && (i_angle < 180))
1728 xoffset -= (int)( sin(rad)*h );
1729 if ((i_angle >= 180) && (i_angle < 270))
1730 yoffset -= (int)( cos(rad)*h );
1731 if ((i_angle >= 270) && (i_angle < 360))
1732 xoffset -= (int)( sin(rad)*h );
1733
1734 int i_x = x - xoffset;
1735 int i_y = y - yoffset;
1736
1737 src = image;
1738 DoDrawBitmap( src, i_x, i_y, true );
1739
1740
1741 // it would be better to draw with non underlined font and draw the line
1742 // manually here (it would be more straight...)
1743 #if 0
1744 if ( m_font.GetUnderlined() )
1745 {
1746 gdk_draw_line( m_window, m_textGC,
1747 XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent),
1748 XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent));
1749 }
1750 #endif // 0
1751
1752 // update the bounding box
1753 CalcBoundingBox(x + minX, y + minY);
1754 CalcBoundingBox(x + maxX, y + maxY);
1755 #endif // wxUSE_IMAGE
1756 }
1757
1758 void wxGTKWindowImplDC::DoGetTextExtent(const wxString &string,
1759 wxCoord *width, wxCoord *height,
1760 wxCoord *descent, wxCoord *externalLeading,
1761 const wxFont *theFont) const
1762 {
1763 if ( width )
1764 *width = 0;
1765 if ( height )
1766 *height = 0;
1767 if ( descent )
1768 *descent = 0;
1769 if ( externalLeading )
1770 *externalLeading = 0;
1771
1772 if (string.empty())
1773 return;
1774
1775 // ensure that theFont is always non-NULL
1776 if ( !theFont || !theFont->IsOk() )
1777 theFont = wx_const_cast(wxFont *, &m_font);
1778
1779 // and use it if it's valid
1780 if ( theFont->IsOk() )
1781 {
1782 pango_layout_set_font_description
1783 (
1784 m_layout,
1785 theFont->GetNativeFontInfo()->description
1786 );
1787 }
1788
1789 // Set layout's text
1790 const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(string, *theFont);
1791 if ( !dataUTF8 )
1792 {
1793 // hardly ideal, but what else can we do if conversion failed?
1794 return;
1795 }
1796
1797 pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
1798
1799 if (descent)
1800 {
1801 int h;
1802 pango_layout_get_pixel_size( m_layout, width, &h );
1803 PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
1804 int baseline = pango_layout_iter_get_baseline(iter);
1805 pango_layout_iter_free(iter);
1806 *descent = h - PANGO_PIXELS(baseline);
1807
1808 if (height)
1809 *height = (wxCoord) h;
1810 }
1811 else
1812 {
1813 pango_layout_get_pixel_size( m_layout, width, height );
1814 }
1815
1816 // Reset old font description
1817 if (theFont->IsOk())
1818 pango_layout_set_font_description( m_layout, m_fontdesc );
1819 }
1820
1821
1822 bool wxGTKWindowImplDC::DoGetPartialTextExtents(const wxString& text,
1823 wxArrayInt& widths) const
1824 {
1825 const size_t len = text.length();
1826 widths.Empty();
1827 widths.Add(0, len);
1828
1829 if (text.empty())
1830 return true;
1831
1832 // Set layout's text
1833 const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(text, m_font);
1834 if ( !dataUTF8 )
1835 {
1836 // hardly ideal, but what else can we do if conversion failed?
1837 wxLogLastError(wxT("DoGetPartialTextExtents"));
1838 return false;
1839 }
1840
1841 pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
1842
1843 // Calculate the position of each character based on the widths of
1844 // the previous characters
1845
1846 // Code borrowed from Scintilla's PlatGTK
1847 PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
1848 PangoRectangle pos;
1849 pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
1850 size_t i = 0;
1851 while (pango_layout_iter_next_cluster(iter))
1852 {
1853 pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
1854 int position = PANGO_PIXELS(pos.x);
1855 widths[i++] = position;
1856 }
1857 while (i < len)
1858 widths[i++] = PANGO_PIXELS(pos.x + pos.width);
1859 pango_layout_iter_free(iter);
1860
1861 return true;
1862 }
1863
1864
1865 wxCoord wxGTKWindowImplDC::GetCharWidth() const
1866 {
1867 pango_layout_set_text( m_layout, "H", 1 );
1868 int w;
1869 pango_layout_get_pixel_size( m_layout, &w, NULL );
1870 return w;
1871 }
1872
1873 wxCoord wxGTKWindowImplDC::GetCharHeight() const
1874 {
1875 PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context));
1876 wxCHECK_MSG( metrics, -1, _T("failed to get pango font metrics") );
1877
1878 wxCoord h = PANGO_PIXELS (pango_font_metrics_get_descent (metrics) +
1879 pango_font_metrics_get_ascent (metrics));
1880 pango_font_metrics_unref (metrics);
1881 return h;
1882 }
1883
1884 void wxGTKWindowImplDC::Clear()
1885 {
1886 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1887
1888 if (!m_window) return;
1889
1890 int width,height;
1891 DoGetSize( &width, &height );
1892 gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
1893 }
1894
1895 void wxGTKWindowImplDC::SetFont( const wxFont &font )
1896 {
1897 m_font = font;
1898
1899 if (m_font.IsOk())
1900 {
1901 if (m_fontdesc)
1902 pango_font_description_free( m_fontdesc );
1903
1904 m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
1905
1906
1907 if (m_owningWindow)
1908 {
1909 PangoContext *oldContext = m_context;
1910
1911 m_context = m_owningWindow->GtkGetPangoDefaultContext();
1912
1913 // If we switch back/forth between different contexts
1914 // we also have to create a new layout. I think so,
1915 // at least, and it doesn't hurt to do it.
1916 if (oldContext != m_context)
1917 {
1918 if (m_layout)
1919 g_object_unref (m_layout);
1920
1921 m_layout = pango_layout_new( m_context );
1922 }
1923 }
1924
1925 pango_layout_set_font_description( m_layout, m_fontdesc );
1926 }
1927 }
1928
1929 void wxGTKWindowImplDC::SetPen( const wxPen &pen )
1930 {
1931 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
1932
1933 if (m_pen == pen) return;
1934
1935 m_pen = pen;
1936
1937 if (!m_pen.IsOk()) return;
1938
1939 if (!m_window) return;
1940
1941 gint width = m_pen.GetWidth();
1942 if (width <= 0)
1943 {
1944 // CMB: if width is non-zero scale it with the dc
1945 width = 1;
1946 }
1947 else
1948 {
1949 // X doesn't allow different width in x and y and so we take
1950 // the average
1951 double w = 0.5 +
1952 ( fabs((double) XLOG2DEVREL(width)) +
1953 fabs((double) YLOG2DEVREL(width)) ) / 2.0;
1954 width = (int)w;
1955 if ( !width )
1956 {
1957 // width can't be 0 or an internal GTK error occurs inside
1958 // gdk_gc_set_dashes() below
1959 width = 1;
1960 }
1961 }
1962
1963 static const wxGTKDash dotted[] = {1, 1};
1964 static const wxGTKDash short_dashed[] = {2, 2};
1965 static const wxGTKDash wxCoord_dashed[] = {2, 4};
1966 static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3};
1967
1968 // We express dash pattern in pen width unit, so we are
1969 // independent of zoom factor and so on...
1970 int req_nb_dash;
1971 const wxGTKDash *req_dash;
1972
1973 GdkLineStyle lineStyle = GDK_LINE_SOLID;
1974 switch (m_pen.GetStyle())
1975 {
1976 case wxUSER_DASH:
1977 {
1978 lineStyle = GDK_LINE_ON_OFF_DASH;
1979 req_nb_dash = m_pen.GetDashCount();
1980 req_dash = (wxGTKDash*)m_pen.GetDash();
1981 break;
1982 }
1983 case wxDOT:
1984 {
1985 lineStyle = GDK_LINE_ON_OFF_DASH;
1986 req_nb_dash = 2;
1987 req_dash = dotted;
1988 break;
1989 }
1990 case wxLONG_DASH:
1991 {
1992 lineStyle = GDK_LINE_ON_OFF_DASH;
1993 req_nb_dash = 2;
1994 req_dash = wxCoord_dashed;
1995 break;
1996 }
1997 case wxSHORT_DASH:
1998 {
1999 lineStyle = GDK_LINE_ON_OFF_DASH;
2000 req_nb_dash = 2;
2001 req_dash = short_dashed;
2002 break;
2003 }
2004 case wxDOT_DASH:
2005 {
2006 // lineStyle = GDK_LINE_DOUBLE_DASH;
2007 lineStyle = GDK_LINE_ON_OFF_DASH;
2008 req_nb_dash = 4;
2009 req_dash = dotted_dashed;
2010 break;
2011 }
2012
2013 case wxTRANSPARENT:
2014 case wxSTIPPLE_MASK_OPAQUE:
2015 case wxSTIPPLE:
2016 case wxSOLID:
2017 default:
2018 {
2019 lineStyle = GDK_LINE_SOLID;
2020 req_dash = (wxGTKDash*)NULL;
2021 req_nb_dash = 0;
2022 break;
2023 }
2024 }
2025
2026 if (req_dash && req_nb_dash)
2027 {
2028 wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
2029 if (real_req_dash)
2030 {
2031 for (int i = 0; i < req_nb_dash; i++)
2032 real_req_dash[i] = req_dash[i] * width;
2033 gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash );
2034 delete[] real_req_dash;
2035 }
2036 else
2037 {
2038 // No Memory. We use non-scaled dash pattern...
2039 gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
2040 }
2041 }
2042
2043 GdkCapStyle capStyle = GDK_CAP_ROUND;
2044 switch (m_pen.GetCap())
2045 {
2046 case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
2047 case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; }
2048 case wxCAP_ROUND:
2049 default:
2050 {
2051 if (width <= 1)
2052 {
2053 width = 0;
2054 capStyle = GDK_CAP_NOT_LAST;
2055 }
2056 else
2057 {
2058 capStyle = GDK_CAP_ROUND;
2059 }
2060 break;
2061 }
2062 }
2063
2064 GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
2065 switch (m_pen.GetJoin())
2066 {
2067 case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
2068 case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
2069 case wxJOIN_ROUND:
2070 default: { joinStyle = GDK_JOIN_ROUND; break; }
2071 }
2072
2073 gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
2074
2075 m_pen.GetColour().CalcPixel( m_cmap );
2076 gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
2077 }
2078
2079 void wxGTKWindowImplDC::SetBrush( const wxBrush &brush )
2080 {
2081 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2082
2083 if (m_brush == brush) return;
2084
2085 m_brush = brush;
2086
2087 if (!m_brush.IsOk()) return;
2088
2089 if (!m_window) return;
2090
2091 m_brush.GetColour().CalcPixel( m_cmap );
2092 gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
2093
2094 gdk_gc_set_fill( m_brushGC, GDK_SOLID );
2095
2096 if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->IsOk()))
2097 {
2098 if (m_brush.GetStipple()->GetDepth() != 1)
2099 {
2100 gdk_gc_set_fill( m_brushGC, GDK_TILED );
2101 gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() );
2102 }
2103 else
2104 {
2105 gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
2106 gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
2107 }
2108 }
2109
2110 if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
2111 {
2112 gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED);
2113 gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
2114 }
2115
2116 if (m_brush.IsHatch())
2117 {
2118 gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
2119 int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
2120 gdk_gc_set_stipple( m_brushGC, hatches[num] );
2121 }
2122 }
2123
2124 void wxGTKWindowImplDC::SetBackground( const wxBrush &brush )
2125 {
2126 /* CMB 21/7/98: Added SetBackground. Sets background brush
2127 * for Clear() and bg colour for shapes filled with cross-hatch brush */
2128
2129 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2130
2131 if (m_backgroundBrush == brush) return;
2132
2133 m_backgroundBrush = brush;
2134
2135 if (!m_backgroundBrush.IsOk()) return;
2136
2137 if (!m_window) return;
2138
2139 m_backgroundBrush.GetColour().CalcPixel( m_cmap );
2140 gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() );
2141 gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() );
2142 gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
2143 gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
2144
2145 gdk_gc_set_fill( m_bgGC, GDK_SOLID );
2146
2147 if ((m_backgroundBrush.GetStyle() == wxSTIPPLE) && (m_backgroundBrush.GetStipple()->IsOk()))
2148 {
2149 if (m_backgroundBrush.GetStipple()->GetDepth() != 1)
2150 {
2151 gdk_gc_set_fill( m_bgGC, GDK_TILED );
2152 gdk_gc_set_tile( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
2153 }
2154 else
2155 {
2156 gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
2157 gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
2158 }
2159 }
2160
2161 if (m_backgroundBrush.IsHatch())
2162 {
2163 gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
2164 int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
2165 gdk_gc_set_stipple( m_bgGC, hatches[num] );
2166 }
2167 }
2168
2169 void wxGTKWindowImplDC::SetLogicalFunction( int function )
2170 {
2171 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2172
2173 if (m_logicalFunction == function)
2174 return;
2175
2176 // VZ: shouldn't this be a CHECK?
2177 if (!m_window)
2178 return;
2179
2180 GdkFunction mode;
2181 switch (function)
2182 {
2183 case wxXOR: mode = GDK_XOR; break;
2184 case wxINVERT: mode = GDK_INVERT; break;
2185 case wxOR_REVERSE: mode = GDK_OR_REVERSE; break;
2186 case wxAND_REVERSE: mode = GDK_AND_REVERSE; break;
2187 case wxCLEAR: mode = GDK_CLEAR; break;
2188 case wxSET: mode = GDK_SET; break;
2189 case wxOR_INVERT: mode = GDK_OR_INVERT; break;
2190 case wxAND: mode = GDK_AND; break;
2191 case wxOR: mode = GDK_OR; break;
2192 case wxEQUIV: mode = GDK_EQUIV; break;
2193 case wxNAND: mode = GDK_NAND; break;
2194 case wxAND_INVERT: mode = GDK_AND_INVERT; break;
2195 case wxCOPY: mode = GDK_COPY; break;
2196 case wxNO_OP: mode = GDK_NOOP; break;
2197 case wxSRC_INVERT: mode = GDK_COPY_INVERT; break;
2198
2199 // unsupported by GTK
2200 case wxNOR: mode = GDK_COPY; break;
2201 default:
2202 wxFAIL_MSG( wxT("unsupported logical function") );
2203 mode = GDK_COPY;
2204 }
2205
2206 m_logicalFunction = function;
2207
2208 gdk_gc_set_function( m_penGC, mode );
2209 gdk_gc_set_function( m_brushGC, mode );
2210
2211 // to stay compatible with wxMSW, we don't apply ROPs to the text
2212 // operations (i.e. DrawText/DrawRotatedText).
2213 // True, but mono-bitmaps use the m_textGC and they use ROPs as well.
2214 gdk_gc_set_function( m_textGC, mode );
2215 }
2216
2217 void wxGTKWindowImplDC::SetTextForeground( const wxColour &col )
2218 {
2219 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2220
2221 // don't set m_textForegroundColour to an invalid colour as we'd crash
2222 // later then (we use m_textForegroundColour.GetColor() without checking
2223 // in a few places)
2224 if ( !col.IsOk() || (m_textForegroundColour == col) )
2225 return;
2226
2227 m_textForegroundColour = col;
2228
2229 if ( m_window )
2230 {
2231 m_textForegroundColour.CalcPixel( m_cmap );
2232 gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
2233 }
2234 }
2235
2236 void wxGTKWindowImplDC::SetTextBackground( const wxColour &col )
2237 {
2238 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2239
2240 // same as above
2241 if ( !col.IsOk() || (m_textBackgroundColour == col) )
2242 return;
2243
2244 m_textBackgroundColour = col;
2245
2246 if ( m_window )
2247 {
2248 m_textBackgroundColour.CalcPixel( m_cmap );
2249 gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
2250 }
2251 }
2252
2253 void wxGTKWindowImplDC::SetBackgroundMode( int mode )
2254 {
2255 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2256
2257 m_backgroundMode = mode;
2258
2259 if (!m_window) return;
2260
2261 // CMB 21/7/98: fill style of cross-hatch brushes is affected by
2262 // transparent/solid background mode
2263
2264 if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
2265 {
2266 gdk_gc_set_fill( m_brushGC,
2267 (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED);
2268 }
2269 }
2270
2271 void wxGTKWindowImplDC::SetPalette( const wxPalette& WXUNUSED(palette) )
2272 {
2273 wxFAIL_MSG( wxT("wxGTKWindowImplDC::SetPalette not implemented") );
2274 }
2275
2276 void wxGTKWindowImplDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
2277 {
2278 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2279
2280 if (!m_window) return;
2281
2282 wxRect rect;
2283 rect.x = XLOG2DEV(x);
2284 rect.y = YLOG2DEV(y);
2285 rect.width = XLOG2DEVREL(width);
2286 rect.height = YLOG2DEVREL(height);
2287
2288 if (m_owningWindow && m_owningWindow->m_wxwindow &&
2289 (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
2290 {
2291 rect.x -= rect.width;
2292 }
2293
2294 if (!m_currentClippingRegion.IsNull())
2295 m_currentClippingRegion.Intersect( rect );
2296 else
2297 m_currentClippingRegion.Union( rect );
2298
2299 #if USE_PAINT_REGION
2300 if (!m_paintClippingRegion.IsNull())
2301 m_currentClippingRegion.Intersect( m_paintClippingRegion );
2302 #endif
2303
2304 wxCoord xx, yy, ww, hh;
2305 m_currentClippingRegion.GetBox( xx, yy, ww, hh );
2306 #if wxUSE_NEW_DC
2307 wxImplDC::DoSetClippingRegion( xx, yy, ww, hh );
2308 #else
2309 wxDC::DoSetClippingRegion( xx, yy, ww, hh );
2310 #endif
2311
2312 gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2313 gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2314 gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2315 gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2316 }
2317
2318 void wxGTKWindowImplDC::DoSetClippingRegionAsRegion( const wxRegion &region )
2319 {
2320 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2321
2322 if (region.Empty())
2323 {
2324 DestroyClippingRegion();
2325 return;
2326 }
2327
2328 if (!m_window) return;
2329
2330 if (!m_currentClippingRegion.IsNull())
2331 m_currentClippingRegion.Intersect( region );
2332 else
2333 m_currentClippingRegion.Union( region );
2334
2335 #if USE_PAINT_REGION
2336 if (!m_paintClippingRegion.IsNull())
2337 m_currentClippingRegion.Intersect( m_paintClippingRegion );
2338 #endif
2339
2340 wxCoord xx, yy, ww, hh;
2341 m_currentClippingRegion.GetBox( xx, yy, ww, hh );
2342 #if wxUSE_NEW_DC
2343 wxImplDC::DoSetClippingRegion( xx, yy, ww, hh );
2344 #else
2345 wxDC::DoSetClippingRegion( xx, yy, ww, hh );
2346 #endif
2347
2348 gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2349 gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2350 gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2351 gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2352 }
2353
2354 void wxGTKWindowImplDC::DestroyClippingRegion()
2355 {
2356 wxCHECK_RET( IsOk(), wxT("invalid window dc") );
2357
2358 #if wxUSE_NEW_DC
2359 wxImplDC::DestroyClippingRegion();
2360 #else
2361 wxDC::DestroyClippingRegion();
2362 #endif
2363
2364 m_currentClippingRegion.Clear();
2365
2366 #if USE_PAINT_REGION
2367 if (!m_paintClippingRegion.IsEmpty())
2368 m_currentClippingRegion.Union( m_paintClippingRegion );
2369 #endif
2370
2371 if (!m_window) return;
2372
2373 if (m_currentClippingRegion.IsEmpty())
2374 {
2375 gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
2376 gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
2377 gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
2378 gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
2379 }
2380 else
2381 {
2382 gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
2383 gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
2384 gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
2385 gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
2386 }
2387 }
2388
2389 void wxGTKWindowImplDC::Destroy()
2390 {
2391 if (m_penGC) wxFreePoolGC( m_penGC );
2392 m_penGC = (GdkGC*) NULL;
2393 if (m_brushGC) wxFreePoolGC( m_brushGC );
2394 m_brushGC = (GdkGC*) NULL;
2395 if (m_textGC) wxFreePoolGC( m_textGC );
2396 m_textGC = (GdkGC*) NULL;
2397 if (m_bgGC) wxFreePoolGC( m_bgGC );
2398 m_bgGC = (GdkGC*) NULL;
2399 }
2400
2401 void wxGTKWindowImplDC::SetDeviceOrigin( wxCoord x, wxCoord y )
2402 {
2403 m_deviceOriginX = x;
2404 m_deviceOriginY = y;
2405
2406 ComputeScaleAndOrigin();
2407 }
2408
2409 void wxGTKWindowImplDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
2410 {
2411 m_signX = (xLeftRight ? 1 : -1);
2412 m_signY = (yBottomUp ? -1 : 1);
2413
2414 if (m_owningWindow && m_owningWindow->m_wxwindow &&
2415 (m_owningWindow->GetLayoutDirection() == wxLayout_RightToLeft))
2416 m_signX = -m_signX;
2417
2418 ComputeScaleAndOrigin();
2419 }
2420
2421 void wxGTKWindowImplDC::ComputeScaleAndOrigin()
2422 {
2423 const wxRealPoint origScale(m_scaleX, m_scaleY);
2424
2425 #if wxUSE_NEW_DC
2426 wxImplDC::ComputeScaleAndOrigin();
2427 #else
2428 wxDC::ComputeScaleAndOrigin();
2429 #endif
2430
2431 // if scale has changed call SetPen to recalulate the line width
2432 if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.IsOk() )
2433 {
2434 // this is a bit artificial, but we need to force wxDC to think the pen
2435 // has changed
2436 wxPen pen = m_pen;
2437 m_pen = wxNullPen;
2438 SetPen( pen );
2439 }
2440 }
2441
2442 // Resolution in pixels per logical inch
2443 wxSize wxGTKWindowImplDC::GetPPI() const
2444 {
2445 return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5));
2446 }
2447
2448 int wxGTKWindowImplDC::GetDepth() const
2449 {
2450 return gdk_drawable_get_depth(m_window);
2451 }
2452
2453
2454 //-----------------------------------------------------------------------------
2455 // wxClientDC
2456 //-----------------------------------------------------------------------------
2457
2458 #if wxUSE_NEW_DC
2459 IMPLEMENT_ABSTRACT_CLASS(wxGTKClientImplDC, wxGTKWindowImplDC)
2460 #else
2461 IMPLEMENT_ABSTRACT_CLASS(wxClientDC, wxWindowDC)
2462 #endif
2463
2464 #if wxUSE_NEW_DC
2465 wxGTKClientImplDC::wxGTKClientImplDC( wxDC *owner )
2466 : wxGTKWindowImplDC( owner )
2467 {
2468 }
2469
2470 wxGTKClientImplDC::wxGTKClientImplDC( wxDC *owner, wxWindow *win )
2471 : wxGTKWindowImplDC( owner, win )
2472 #else
2473 wxClientDC::wxClientDC()
2474 {
2475 }
2476
2477 wxClientDC::wxClientDC( wxWindow *win )
2478 : wxWindowDC( win )
2479 #endif
2480
2481 {
2482 wxCHECK_RET( win, _T("NULL window in wxGTKClientImplDC::wxClientDC") );
2483
2484 #ifdef __WXUNIVERSAL__
2485 wxPoint ptOrigin = win->GetClientAreaOrigin();
2486 SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
2487 wxSize size = win->GetClientSize();
2488 SetClippingRegion(wxPoint(0, 0), size);
2489 #endif // __WXUNIVERSAL__
2490 }
2491
2492 void wxGTKClientImplDC::DoGetSize(int *width, int *height) const
2493 {
2494 wxCHECK_RET( m_owningWindow, _T("GetSize() doesn't work without window") );
2495
2496 m_owningWindow->GetClientSize( width, height );
2497 }
2498
2499 //-----------------------------------------------------------------------------
2500 // wxPaintDC
2501 //-----------------------------------------------------------------------------
2502
2503 #if wxUSE_NEW_DC
2504 IMPLEMENT_ABSTRACT_CLASS(wxGTKPaintImplDC, wxGTKClientImplDC)
2505 #else
2506 IMPLEMENT_ABSTRACT_CLASS(wxPaintDC, wxClientDC)
2507 #endif
2508
2509 // Limit the paint region to the window size. Sometimes
2510 // the paint region is too big, and this risks X11 errors
2511 static void wxLimitRegionToSize(wxRegion& region, const wxSize& sz)
2512 {
2513 wxRect originalRect = region.GetBox();
2514 wxRect rect(originalRect);
2515 if (rect.width + rect.x > sz.x)
2516 rect.width = sz.x - rect.x;
2517 if (rect.height + rect.y > sz.y)
2518 rect.height = sz.y - rect.y;
2519 if (rect != originalRect)
2520 {
2521 region = wxRegion(rect);
2522 wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
2523 originalRect.x, originalRect.y, originalRect.width, originalRect.height,
2524 rect.x, rect.y, rect.width, rect.height);
2525 }
2526 }
2527
2528 #if wxUSE_NEW_DC
2529 wxGTKPaintImplDC::wxGTKPaintImplDC( wxDC *owner )
2530 : wxGTKClientImplDC( owner )
2531 {
2532 }
2533
2534 wxGTKPaintImplDC::wxGTKPaintImplDC( wxDC *owner, wxWindow *win )
2535 : wxGTKClientImplDC( owner, win )
2536 #else
2537 wxPaintDC::wxPaintDC()
2538 : wxClientDC()
2539 {
2540 }
2541
2542 wxPaintDC::wxPaintDC( wxWindow *win )
2543 : wxClientDC( win )
2544 #endif
2545 {
2546 #if USE_PAINT_REGION
2547 if (!win->m_clipPaintRegion)
2548 return;
2549
2550 wxSize sz = win->GetSize();
2551 m_paintClippingRegion = win->m_nativeUpdateRegion;
2552 wxLimitRegionToSize(m_paintClippingRegion, sz);
2553
2554 GdkRegion *region = m_paintClippingRegion.GetRegion();
2555 if ( region )
2556 {
2557 m_currentClippingRegion.Union( m_paintClippingRegion );
2558 wxLimitRegionToSize(m_currentClippingRegion, sz);
2559
2560 if (sz.x <= 0 || sz.y <= 0)
2561 return ;
2562
2563 gdk_gc_set_clip_region( m_penGC, region );
2564 gdk_gc_set_clip_region( m_brushGC, region );
2565 gdk_gc_set_clip_region( m_textGC, region );
2566 gdk_gc_set_clip_region( m_bgGC, region );
2567 }
2568 #endif // USE_PAINT_REGION
2569 }
2570
2571 // ----------------------------------------------------------------------------
2572 // wxDCModule
2573 // ----------------------------------------------------------------------------
2574
2575 class wxDCModule : public wxModule
2576 {
2577 public:
2578 bool OnInit();
2579 void OnExit();
2580
2581 private:
2582 DECLARE_DYNAMIC_CLASS(wxDCModule)
2583 };
2584
2585 IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
2586
2587 bool wxDCModule::OnInit()
2588 {
2589 wxInitGCPool();
2590 return true;
2591 }
2592
2593 void wxDCModule::OnExit()
2594 {
2595 wxCleanUpGCPool();
2596 }
wxWidgets (Impactor)