1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/dcclient.cpp
4 // Author: Robert Roebling
6 // Copyright: (c) 1998 Robert Roebling, Chris Breeze
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
14 #define XCopyPlane XCOPYPLANE
17 #include "wx/dcclient.h"
20 #include "wx/window.h"
22 #include "wx/dcmemory.h"
23 #include "wx/math.h" // for floating-point functions
25 #include "wx/module.h"
28 #include "wx/fontutil.h"
29 #include "wx/scrolwin.h"
31 #include "wx/gtk/win_gtk.h"
32 #include "wx/gtk/private.h"
36 //-----------------------------------------------------------------------------
38 //-----------------------------------------------------------------------------
40 #define USE_PAINT_REGION 1
42 //-----------------------------------------------------------------------------
44 //-----------------------------------------------------------------------------
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)
58 static GdkPixmap
*hatches
[num_hatches
];
59 static GdkPixmap
**hatch_bitmap
= (GdkPixmap
**) NULL
;
61 extern GtkWidget
*wxGetRootWindow();
63 //-----------------------------------------------------------------------------
65 //-----------------------------------------------------------------------------
67 const double RAD2DEG
= 180.0 / M_PI
;
69 // ----------------------------------------------------------------------------
71 // ----------------------------------------------------------------------------
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
; }
76 static inline double DegToRad(double deg
) { return (deg
* M_PI
) / 180.0; }
78 //-----------------------------------------------------------------------------
79 // temporary implementation of the missing GDK function
80 //-----------------------------------------------------------------------------
82 #include "gdk/gdkprivate.h"
85 void gdk_wx_draw_bitmap(GdkDrawable
*drawable
,
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") );
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
;
104 XCopyPlane( GDK_WINDOW_XDISPLAY(drawable
),
106 GDK_WINDOW_XID(drawable
),
114 //-----------------------------------------------------------------------------
115 // Implement Pool of Graphic contexts. Creating them takes too much time.
116 //-----------------------------------------------------------------------------
142 #define GC_POOL_ALLOC_SIZE 100
144 static int wxGCPoolSize
= 0;
146 static wxGC
*wxGCPool
= NULL
;
148 static void wxInitGCPool()
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.
154 // Set initial pool size.
155 wxGCPoolSize
= GC_POOL_ALLOC_SIZE
;
157 // Allocate initial pool.
158 wxGCPool
= (wxGC
*)malloc(wxGCPoolSize
* sizeof(wxGC
));
159 if (wxGCPool
== NULL
)
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
165 wxFAIL_MSG( wxT("Cannot allocate GC pool") );
169 // Zero initial pool.
170 memset(wxGCPool
, 0, wxGCPoolSize
* sizeof(wxGC
));
173 static void wxCleanUpGCPool()
175 for (int i
= 0; i
< wxGCPoolSize
; i
++)
177 if (wxGCPool
[i
].m_gc
)
178 g_object_unref (wxGCPool
[i
].m_gc
);
186 static GdkGC
* wxGetPoolGC( GdkWindow
*window
, wxPoolGCType type
)
190 // Look for an available GC.
191 for (int i
= 0; i
< wxGCPoolSize
; i
++)
193 if (!wxGCPool
[i
].m_gc
)
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;
200 if ((!wxGCPool
[i
].m_used
) && (wxGCPool
[i
].m_type
== type
))
202 wxGCPool
[i
].m_used
= true;
203 return wxGCPool
[i
].m_gc
;
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
));
213 // Initialize newly allocated pool.
215 memset(&wxGCPool
[wxGCPoolSize
], 0,
216 GC_POOL_ALLOC_SIZE
*sizeof(wxGC
));
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;
224 // Set new value of pool size.
225 wxGCPoolSize
+= GC_POOL_ALLOC_SIZE
;
227 // Return newly allocated entry.
228 return wxGCPool
[wxGCPoolSize
-GC_POOL_ALLOC_SIZE
].m_gc
;
231 // The realloc failed. Fall through to error.
232 wxFAIL_MSG( wxT("No GC available") );
234 return (GdkGC
*) NULL
;
237 static void wxFreePoolGC( GdkGC
*gc
)
239 for (int i
= 0; i
< wxGCPoolSize
; i
++)
241 if (wxGCPool
[i
].m_gc
== gc
)
243 wxGCPool
[i
].m_used
= false;
248 wxFAIL_MSG( wxT("Wrong GC") );
251 //-----------------------------------------------------------------------------
253 //-----------------------------------------------------------------------------
255 IMPLEMENT_DYNAMIC_CLASS(wxWindowDC
, wxDC
)
257 wxWindowDC::wxWindowDC()
259 m_penGC
= (GdkGC
*) NULL
;
260 m_brushGC
= (GdkGC
*) NULL
;
261 m_textGC
= (GdkGC
*) NULL
;
262 m_bgGC
= (GdkGC
*) NULL
;
263 m_cmap
= (GdkColormap
*) NULL
;
265 m_isScreenDC
= false;
266 m_owner
= (wxWindow
*)NULL
;
267 m_context
= (PangoContext
*)NULL
;
268 m_layout
= (PangoLayout
*)NULL
;
269 m_fontdesc
= (PangoFontDescription
*)NULL
;
272 wxWindowDC::wxWindowDC( wxWindow
*window
)
274 wxASSERT_MSG( window
, wxT("DC needs a window") );
276 m_penGC
= (GdkGC
*) NULL
;
277 m_brushGC
= (GdkGC
*) NULL
;
278 m_textGC
= (GdkGC
*) NULL
;
279 m_bgGC
= (GdkGC
*) NULL
;
280 m_cmap
= (GdkColormap
*) NULL
;
281 m_owner
= (wxWindow
*)NULL
;
283 m_isScreenDC
= false;
284 m_font
= window
->GetFont();
286 GtkWidget
*widget
= window
->m_wxwindow
;
288 // Some controls don't have m_wxwindow - like wxStaticBox, but the user
289 // code should still be able to create wxClientDCs for them, so we will
290 // use the parent window here then.
293 window
= window
->GetParent();
294 widget
= window
->m_wxwindow
;
297 wxASSERT_MSG( widget
, wxT("DC needs a widget") );
299 m_context
= window
->GtkGetPangoDefaultContext();
300 m_layout
= pango_layout_new( m_context
);
301 m_fontdesc
= pango_font_description_copy( widget
->style
->font_desc
);
303 GtkPizza
*pizza
= GTK_PIZZA( widget
);
304 m_window
= pizza
->bin_window
;
306 // Window not realized ?
309 // Don't report problems as per MSW.
315 m_cmap
= gtk_widget_get_colormap( widget
? widget
: window
->m_widget
);
319 /* this must be done after SetUpDC, bacause SetUpDC calls the
320 repective SetBrush, SetPen, SetBackground etc functions
321 to set up the DC. SetBackground call m_owner->SetBackground
322 and this might not be desired as the standard dc background
323 is white whereas a window might assume gray to be the
324 standard (as e.g. wxStatusBar) */
328 if (m_owner
&& m_owner
->m_wxwindow
&& (m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
))
333 // origin in the upper right corner
334 m_deviceOriginX
= m_owner
->GetClientSize().x
;
338 wxWindowDC::~wxWindowDC()
343 g_object_unref (m_layout
);
345 pango_font_description_free( m_fontdesc
);
348 void wxWindowDC::SetUpDC()
352 wxASSERT_MSG( !m_penGC
, wxT("GCs already created") );
356 m_penGC
= wxGetPoolGC( m_window
, wxPEN_SCREEN
);
357 m_brushGC
= wxGetPoolGC( m_window
, wxBRUSH_SCREEN
);
358 m_textGC
= wxGetPoolGC( m_window
, wxTEXT_SCREEN
);
359 m_bgGC
= wxGetPoolGC( m_window
, wxBG_SCREEN
);
362 if (m_isMemDC
&& (((wxMemoryDC
*)this)->m_selected
.GetDepth() == 1))
364 m_penGC
= wxGetPoolGC( m_window
, wxPEN_MONO
);
365 m_brushGC
= wxGetPoolGC( m_window
, wxBRUSH_MONO
);
366 m_textGC
= wxGetPoolGC( m_window
, wxTEXT_MONO
);
367 m_bgGC
= wxGetPoolGC( m_window
, wxBG_MONO
);
371 m_penGC
= wxGetPoolGC( m_window
, wxPEN_COLOUR
);
372 m_brushGC
= wxGetPoolGC( m_window
, wxBRUSH_COLOUR
);
373 m_textGC
= wxGetPoolGC( m_window
, wxTEXT_COLOUR
);
374 m_bgGC
= wxGetPoolGC( m_window
, wxBG_COLOUR
);
377 /* background colour */
378 m_backgroundBrush
= *wxWHITE_BRUSH
;
379 m_backgroundBrush
.GetColour().CalcPixel( m_cmap
);
381 const GdkColor
*bg_col
= m_backgroundBrush
.GetColour().GetColor();
383 GdkColor
*bg_col
= m_backgroundBrush
.GetColour().GetColor();
387 m_textForegroundColour
.CalcPixel( m_cmap
);
388 gdk_gc_set_foreground( m_textGC
, m_textForegroundColour
.GetColor() );
390 m_textBackgroundColour
.CalcPixel( m_cmap
);
391 gdk_gc_set_background( m_textGC
, m_textBackgroundColour
.GetColor() );
393 gdk_gc_set_fill( m_textGC
, GDK_SOLID
);
396 m_pen
.GetColour().CalcPixel( m_cmap
);
397 gdk_gc_set_foreground( m_penGC
, m_pen
.GetColour().GetColor() );
398 gdk_gc_set_background( m_penGC
, bg_col
);
400 gdk_gc_set_line_attributes( m_penGC
, 0, GDK_LINE_SOLID
, GDK_CAP_NOT_LAST
, GDK_JOIN_ROUND
);
403 m_brush
.GetColour().CalcPixel( m_cmap
);
404 gdk_gc_set_foreground( m_brushGC
, m_brush
.GetColour().GetColor() );
405 gdk_gc_set_background( m_brushGC
, bg_col
);
407 gdk_gc_set_fill( m_brushGC
, GDK_SOLID
);
410 gdk_gc_set_background( m_bgGC
, bg_col
);
411 gdk_gc_set_foreground( m_bgGC
, bg_col
);
413 gdk_gc_set_fill( m_bgGC
, GDK_SOLID
);
416 gdk_gc_set_function( m_textGC
, GDK_COPY
);
417 gdk_gc_set_function( m_brushGC
, GDK_COPY
);
418 gdk_gc_set_function( m_penGC
, GDK_COPY
);
421 gdk_gc_set_clip_rectangle( m_penGC
, (GdkRectangle
*) NULL
);
422 gdk_gc_set_clip_rectangle( m_brushGC
, (GdkRectangle
*) NULL
);
423 gdk_gc_set_clip_rectangle( m_textGC
, (GdkRectangle
*) NULL
);
424 gdk_gc_set_clip_rectangle( m_bgGC
, (GdkRectangle
*) NULL
);
428 hatch_bitmap
= hatches
;
429 hatch_bitmap
[0] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, bdiag_bits
, bdiag_width
, bdiag_height
);
430 hatch_bitmap
[1] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, cdiag_bits
, cdiag_width
, cdiag_height
);
431 hatch_bitmap
[2] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, fdiag_bits
, fdiag_width
, fdiag_height
);
432 hatch_bitmap
[3] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, cross_bits
, cross_width
, cross_height
);
433 hatch_bitmap
[4] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, horiz_bits
, horiz_width
, horiz_height
);
434 hatch_bitmap
[5] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, verti_bits
, verti_width
, verti_height
);
438 void wxWindowDC::DoGetSize( int* width
, int* height
) const
440 wxCHECK_RET( m_owner
, _T("GetSize() doesn't work without window") );
442 m_owner
->GetSize(width
, height
);
445 extern bool wxDoFloodFill(wxDC
*dc
, wxCoord x
, wxCoord y
,
446 const wxColour
& col
, int style
);
448 bool wxWindowDC::DoFloodFill(wxCoord x
, wxCoord y
,
449 const wxColour
& col
, int style
)
451 return wxDoFloodFill(this, x
, y
, col
, style
);
454 bool wxWindowDC::DoGetPixel( wxCoord x1
, wxCoord y1
, wxColour
*col
) const
456 // Generic (and therefore rather inefficient) method.
457 // Could be improved.
459 wxBitmap
bitmap(1, 1);
460 memdc
.SelectObject(bitmap
);
461 memdc
.Blit(0, 0, 1, 1, (wxDC
*) this, x1
, y1
);
462 memdc
.SelectObject(wxNullBitmap
);
464 wxImage image
= bitmap
.ConvertToImage();
465 col
->Set(image
.GetRed(0, 0), image
.GetGreen(0, 0), image
.GetBlue(0, 0));
469 void wxWindowDC::DoDrawLine( wxCoord x1
, wxCoord y1
, wxCoord x2
, wxCoord y2
)
471 wxCHECK_RET( Ok(), wxT("invalid window dc") );
473 if (m_pen
.GetStyle() != wxTRANSPARENT
)
476 gdk_draw_line( m_window
, m_penGC
, XLOG2DEV(x1
), YLOG2DEV(y1
), XLOG2DEV(x2
), YLOG2DEV(y2
) );
478 CalcBoundingBox(x1
, y1
);
479 CalcBoundingBox(x2
, y2
);
483 void wxWindowDC::DoCrossHair( wxCoord x
, wxCoord y
)
485 wxCHECK_RET( Ok(), wxT("invalid window dc") );
487 if (m_pen
.GetStyle() != wxTRANSPARENT
)
492 wxCoord xx
= XLOG2DEV(x
);
493 wxCoord yy
= YLOG2DEV(y
);
496 gdk_draw_line( m_window
, m_penGC
, 0, yy
, XLOG2DEVREL(w
), yy
);
497 gdk_draw_line( m_window
, m_penGC
, xx
, 0, xx
, YLOG2DEVREL(h
) );
502 void wxWindowDC::DoDrawArc( wxCoord x1
, wxCoord y1
, wxCoord x2
, wxCoord y2
,
503 wxCoord xc
, wxCoord yc
)
505 wxCHECK_RET( Ok(), wxT("invalid window dc") );
507 wxCoord xx1
= XLOG2DEV(x1
);
508 wxCoord yy1
= YLOG2DEV(y1
);
509 wxCoord xx2
= XLOG2DEV(x2
);
510 wxCoord yy2
= YLOG2DEV(y2
);
511 wxCoord xxc
= XLOG2DEV(xc
);
512 wxCoord yyc
= YLOG2DEV(yc
);
513 double dx
= xx1
- xxc
;
514 double dy
= yy1
- yyc
;
515 double radius
= sqrt((double)(dx
*dx
+dy
*dy
));
516 wxCoord r
= (wxCoord
)radius
;
517 double radius1
, radius2
;
519 if (xx1
== xx2
&& yy1
== yy2
)
524 else if ( wxIsNullDouble(radius
) )
531 radius1
= (xx1
- xxc
== 0) ?
532 (yy1
- yyc
< 0) ? 90.0 : -90.0 :
533 -atan2(double(yy1
-yyc
), double(xx1
-xxc
)) * RAD2DEG
;
534 radius2
= (xx2
- xxc
== 0) ?
535 (yy2
- yyc
< 0) ? 90.0 : -90.0 :
536 -atan2(double(yy2
-yyc
), double(xx2
-xxc
)) * RAD2DEG
;
538 wxCoord alpha1
= wxCoord(radius1
* 64.0);
539 wxCoord alpha2
= wxCoord((radius2
- radius1
) * 64.0);
540 while (alpha2
<= 0) alpha2
+= 360*64;
541 while (alpha1
> 360*64) alpha1
-= 360*64;
545 if (m_brush
.GetStyle() != wxTRANSPARENT
)
547 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
549 gdk_gc_set_ts_origin( m_textGC
,
550 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
551 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
552 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
553 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
555 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
557 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
558 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
559 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
561 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
563 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
564 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
565 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
567 if (m_brush
.GetStyle() == wxSTIPPLE
)
569 gdk_gc_set_ts_origin( m_brushGC
,
570 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
571 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
572 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
573 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
577 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
581 if (m_pen
.GetStyle() != wxTRANSPARENT
)
583 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
585 if ((m_brush
.GetStyle() != wxTRANSPARENT
) && (alpha2
- alpha1
!= 360*64))
587 gdk_draw_line( m_window
, m_penGC
, xx1
, yy1
, xxc
, yyc
);
588 gdk_draw_line( m_window
, m_penGC
, xxc
, yyc
, xx2
, yy2
);
593 CalcBoundingBox (x1
, y1
);
594 CalcBoundingBox (x2
, y2
);
597 void wxWindowDC::DoDrawEllipticArc( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
, double sa
, double ea
)
599 wxCHECK_RET( Ok(), wxT("invalid window dc") );
601 wxCoord xx
= XLOG2DEV(x
);
602 wxCoord yy
= YLOG2DEV(y
);
603 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
604 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
606 // CMB: handle -ve width and/or height
607 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
608 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
612 wxCoord start
= wxCoord(sa
* 64.0);
613 wxCoord end
= wxCoord((ea
-sa
) * 64.0);
615 if (m_brush
.GetStyle() != wxTRANSPARENT
)
617 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
619 gdk_gc_set_ts_origin( m_textGC
,
620 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
621 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
622 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
623 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
625 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
627 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
628 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
629 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
631 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
633 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
634 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
635 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
637 if (m_brush
.GetStyle() == wxSTIPPLE
)
639 gdk_gc_set_ts_origin( m_brushGC
,
640 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
641 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
642 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
643 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
647 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
651 if (m_pen
.GetStyle() != wxTRANSPARENT
)
652 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
, hh
, start
, end
);
655 CalcBoundingBox (x
, y
);
656 CalcBoundingBox (x
+ width
, y
+ height
);
659 void wxWindowDC::DoDrawPoint( wxCoord x
, wxCoord y
)
661 wxCHECK_RET( Ok(), wxT("invalid window dc") );
663 if ((m_pen
.GetStyle() != wxTRANSPARENT
) && m_window
)
664 gdk_draw_point( m_window
, m_penGC
, XLOG2DEV(x
), YLOG2DEV(y
) );
666 CalcBoundingBox (x
, y
);
669 void wxWindowDC::DoDrawLines( int n
, wxPoint points
[], wxCoord xoffset
, wxCoord yoffset
)
671 wxCHECK_RET( Ok(), wxT("invalid window dc") );
673 if (m_pen
.GetStyle() == wxTRANSPARENT
) return;
676 //Check, if scaling is necessary
678 xoffset
!= 0 || yoffset
!= 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
680 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
681 GdkPoint
* gpts
= reinterpret_cast<GdkPoint
*>(points
);
684 gpts
= new GdkPoint
[n
];
686 for (int i
= 0; i
< n
; i
++)
690 gpts
[i
].x
= XLOG2DEV(points
[i
].x
+ xoffset
);
691 gpts
[i
].y
= YLOG2DEV(points
[i
].y
+ yoffset
);
693 CalcBoundingBox(points
[i
].x
+ xoffset
, points
[i
].y
+ yoffset
);
697 gdk_draw_lines( m_window
, m_penGC
, gpts
, n
);
703 void wxWindowDC::DoDrawPolygon( int n
, wxPoint points
[], wxCoord xoffset
, wxCoord yoffset
, int WXUNUSED(fillStyle
) )
705 wxCHECK_RET( Ok(), wxT("invalid window dc") );
709 //Check, if scaling is necessary
711 xoffset
!= 0 || yoffset
!= 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
713 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
714 GdkPoint
* gdkpoints
= reinterpret_cast<GdkPoint
*>(points
);
717 gdkpoints
= new GdkPoint
[n
];
720 for (i
= 0 ; i
< n
; i
++)
724 gdkpoints
[i
].x
= XLOG2DEV(points
[i
].x
+ xoffset
);
725 gdkpoints
[i
].y
= YLOG2DEV(points
[i
].y
+ yoffset
);
727 CalcBoundingBox(points
[i
].x
+ xoffset
, points
[i
].y
+ yoffset
);
732 if (m_brush
.GetStyle() != wxTRANSPARENT
)
734 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
736 gdk_gc_set_ts_origin( m_textGC
,
737 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
738 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
739 gdk_draw_polygon( m_window
, m_textGC
, TRUE
, gdkpoints
, n
);
740 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
742 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
744 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
745 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
746 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
748 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
750 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
751 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
752 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
754 if (m_brush
.GetStyle() == wxSTIPPLE
)
756 gdk_gc_set_ts_origin( m_brushGC
,
757 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
758 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
759 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
760 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
764 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
768 if (m_pen
.GetStyle() != wxTRANSPARENT
)
771 for (i = 0 ; i < n ; i++)
773 gdk_draw_line( m_window, m_penGC,
776 gdkpoints[(i+1)%n].x,
777 gdkpoints[(i+1)%n].y);
780 gdk_draw_polygon( m_window
, m_penGC
, FALSE
, gdkpoints
, n
);
789 void wxWindowDC::DoDrawRectangle( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
791 wxCHECK_RET( Ok(), wxT("invalid window dc") );
793 wxCoord xx
= XLOG2DEV(x
);
794 wxCoord yy
= YLOG2DEV(y
);
795 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
796 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
798 // CMB: draw nothing if transformed w or h is 0
799 if (ww
== 0 || hh
== 0) return;
801 // CMB: handle -ve width and/or height
802 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
803 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
807 if (m_brush
.GetStyle() != wxTRANSPARENT
)
809 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
811 gdk_gc_set_ts_origin( m_textGC
,
812 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
813 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
814 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
);
815 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
817 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
819 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
820 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
821 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
823 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
825 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
826 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
827 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
829 if (m_brush
.GetStyle() == wxSTIPPLE
)
831 gdk_gc_set_ts_origin( m_brushGC
,
832 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
833 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
834 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
835 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
839 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
843 if (m_pen
.GetStyle() != wxTRANSPARENT
)
846 if ((m_pen
.GetWidth() == 2) && (m_pen
.GetCap() == wxCAP_ROUND
) &&
847 (m_pen
.GetJoin() == wxJOIN_ROUND
) && (m_pen
.GetStyle() == wxSOLID
))
849 // Use 2 1-line rects instead
850 gdk_gc_set_line_attributes( m_penGC
, 1, GDK_LINE_SOLID
, GDK_CAP_ROUND
, GDK_JOIN_ROUND
);
855 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
+1, yy
, ww
-2, hh
-2 );
856 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
-1, ww
, hh
);
860 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
-2, hh
-2 );
861 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
-1, yy
-1, ww
, hh
);
865 gdk_gc_set_line_attributes( m_penGC
, 2, GDK_LINE_SOLID
, GDK_CAP_ROUND
, GDK_JOIN_ROUND
);
870 // Just use X11 for other cases
871 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
-1, hh
-1 );
876 CalcBoundingBox( x
, y
);
877 CalcBoundingBox( x
+ width
, y
+ height
);
880 void wxWindowDC::DoDrawRoundedRectangle( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
, double radius
)
882 wxCHECK_RET( Ok(), wxT("invalid window dc") );
884 if (radius
< 0.0) radius
= - radius
* ((width
< height
) ? width
: height
);
886 wxCoord xx
= XLOG2DEV(x
);
887 wxCoord yy
= YLOG2DEV(y
);
888 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
889 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
890 wxCoord rr
= XLOG2DEVREL((wxCoord
)radius
);
892 // CMB: handle -ve width and/or height
893 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
894 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
896 // CMB: if radius is zero use DrawRectangle() instead to avoid
897 // X drawing errors with small radii
900 DrawRectangle( x
, y
, width
, height
);
904 // CMB: draw nothing if transformed w or h is 0
905 if (ww
== 0 || hh
== 0) return;
907 // CMB: adjust size if outline is drawn otherwise the result is
908 // 1 pixel too wide and high
909 if (m_pen
.GetStyle() != wxTRANSPARENT
)
917 // CMB: ensure dd is not larger than rectangle otherwise we
918 // get an hour glass shape
920 if (dd
> ww
) dd
= ww
;
921 if (dd
> hh
) dd
= hh
;
924 if (m_brush
.GetStyle() != wxTRANSPARENT
)
926 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
928 gdk_gc_set_ts_origin( m_textGC
,
929 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
930 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
931 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
932 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
933 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
934 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
935 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
936 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
937 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
939 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
941 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
942 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
943 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
944 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
945 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
946 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
947 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
948 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
950 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
952 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
953 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
954 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
955 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
956 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
957 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
958 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
959 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
961 if (m_brush
.GetStyle() == wxSTIPPLE
)
963 gdk_gc_set_ts_origin( m_brushGC
,
964 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
965 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
966 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
967 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
968 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
969 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
970 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
971 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
972 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
976 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
977 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
978 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
979 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
980 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
981 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
985 if (m_pen
.GetStyle() != wxTRANSPARENT
)
987 gdk_draw_line( m_window
, m_penGC
, xx
+rr
+1, yy
, xx
+ww
-rr
, yy
);
988 gdk_draw_line( m_window
, m_penGC
, xx
+rr
+1, yy
+hh
, xx
+ww
-rr
, yy
+hh
);
989 gdk_draw_line( m_window
, m_penGC
, xx
, yy
+rr
+1, xx
, yy
+hh
-rr
);
990 gdk_draw_line( m_window
, m_penGC
, xx
+ww
, yy
+rr
+1, xx
+ww
, yy
+hh
-rr
);
991 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
992 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
993 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
994 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
998 // this ignores the radius
999 CalcBoundingBox( x
, y
);
1000 CalcBoundingBox( x
+ width
, y
+ height
);
1003 void wxWindowDC::DoDrawEllipse( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
1005 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1007 wxCoord xx
= XLOG2DEV(x
);
1008 wxCoord yy
= YLOG2DEV(y
);
1009 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
1010 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
1012 // CMB: handle -ve width and/or height
1013 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
1014 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
1018 if (m_brush
.GetStyle() != wxTRANSPARENT
)
1020 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
1022 gdk_gc_set_ts_origin( m_textGC
,
1023 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
1024 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
1025 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1026 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
1028 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
1030 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
1031 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1032 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1034 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
1036 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
1037 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1038 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1040 if (m_brush
.GetStyle() == wxSTIPPLE
)
1042 gdk_gc_set_ts_origin( m_brushGC
,
1043 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
1044 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
1045 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1046 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1050 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1054 if (m_pen
.GetStyle() != wxTRANSPARENT
)
1055 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1058 CalcBoundingBox( x
, y
);
1059 CalcBoundingBox( x
+ width
, y
+ height
);
1062 void wxWindowDC::DoDrawIcon( const wxIcon
&icon
, wxCoord x
, wxCoord y
)
1064 // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
1065 DoDrawBitmap( (const wxBitmap
&)icon
, x
, y
, true );
1068 void wxWindowDC::DoDrawBitmap( const wxBitmap
&bitmap
,
1069 wxCoord x
, wxCoord y
,
1072 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1074 wxCHECK_RET( bitmap
.Ok(), wxT("invalid bitmap") );
1076 bool is_mono
= bitmap
.GetDepth() == 1;
1078 // scale/translate size and position
1079 int xx
= XLOG2DEV(x
);
1080 int yy
= YLOG2DEV(y
);
1082 int w
= bitmap
.GetWidth();
1083 int h
= bitmap
.GetHeight();
1085 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1088 CalcBoundingBox( x
, y
);
1089 CalcBoundingBox( x
+ w
, y
+ h
);
1091 if (!m_window
) return;
1093 int ww
= XLOG2DEVREL(w
);
1094 int hh
= YLOG2DEVREL(h
);
1096 // compare to current clipping region
1097 if (!m_currentClippingRegion
.IsNull())
1099 wxRegion
tmp( xx
,yy
,ww
,hh
);
1100 tmp
.Intersect( m_currentClippingRegion
);
1105 // scale bitmap if required
1106 wxBitmap use_bitmap
= bitmap
;
1107 if ((w
!= ww
) || (h
!= hh
))
1108 use_bitmap
= use_bitmap
.Rescale( 0, 0, ww
, hh
, ww
, hh
);
1110 #if !GTK_CHECK_VERSION(2,2,0)
1111 // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code.
1112 // Pixbufs-based bitmaps with alpha channel don't have a mask, so we
1113 // have to call GetPixmap() here -- it converts the pixbuf into pixmap
1114 // and also creates the mask as a side-effect:
1115 use_bitmap
.GetPixmap();
1118 // apply mask if any
1119 GdkBitmap
*mask
= (GdkBitmap
*) NULL
;
1120 if (useMask
&& use_bitmap
.GetMask())
1121 mask
= use_bitmap
.GetMask()->GetBitmap();
1123 GdkGC
* use_gc
= is_mono
? m_textGC
: m_penGC
;
1125 GdkBitmap
*new_mask
= (GdkBitmap
*) NULL
;
1129 if (!m_currentClippingRegion
.IsNull())
1132 new_mask
= gdk_pixmap_new( wxGetRootWindow()->window
, ww
, hh
, 1 );
1133 GdkGC
*gc
= gdk_gc_new( new_mask
);
1135 gdk_gc_set_foreground( gc
, &col
);
1136 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, ww
, hh
);
1138 gdk_gc_set_background( gc
, &col
);
1140 gdk_gc_set_foreground( gc
, &col
);
1141 gdk_gc_set_clip_region( gc
, m_currentClippingRegion
.GetRegion() );
1142 gdk_gc_set_clip_origin( gc
, -xx
, -yy
);
1143 gdk_gc_set_fill( gc
, GDK_OPAQUE_STIPPLED
);
1144 gdk_gc_set_stipple( gc
, mask
);
1145 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, ww
, hh
);
1147 g_object_unref (gc
);
1150 gdk_gc_set_clip_mask(use_gc
, mask
);
1151 gdk_gc_set_clip_origin(use_gc
, xx
, yy
);
1154 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1155 // drawing a mono-bitmap (XBitmap) we use the current text GC
1158 GdkPixmap
*bitmap2
= gdk_pixmap_new( wxGetRootWindow()->window
, ww
, hh
, -1 );
1159 GdkGC
*gc
= gdk_gc_new( bitmap2
);
1160 gdk_gc_set_foreground( gc
, m_textForegroundColour
.GetColor() );
1161 gdk_gc_set_background( gc
, m_textBackgroundColour
.GetColor() );
1162 gdk_wx_draw_bitmap( bitmap2
, gc
, use_bitmap
.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1164 gdk_draw_drawable(m_window
, use_gc
, bitmap2
, 0, 0, xx
, yy
, -1, -1);
1166 g_object_unref (bitmap2
);
1167 g_object_unref (gc
);
1171 #if GTK_CHECK_VERSION(2,2,0)
1172 if (!gtk_check_version(2,2,0) && use_bitmap
.HasPixbuf())
1174 gdk_draw_pixbuf(m_window
, use_gc
,
1175 use_bitmap
.GetPixbuf(),
1176 0, 0, xx
, yy
, -1, -1,
1177 GDK_RGB_DITHER_NORMAL
, xx
, yy
);
1182 gdk_draw_drawable(m_window
, use_gc
,
1183 use_bitmap
.GetPixmap(),
1184 0, 0, xx
, yy
, -1, -1);
1188 // remove mask again if any
1191 gdk_gc_set_clip_mask(use_gc
, NULL
);
1192 gdk_gc_set_clip_origin(use_gc
, 0, 0);
1193 if (!m_currentClippingRegion
.IsNull())
1194 gdk_gc_set_clip_region(use_gc
, m_currentClippingRegion
.GetRegion());
1195 if (new_mask
!= NULL
)
1196 g_object_unref(new_mask
);
1200 bool wxWindowDC::DoBlit( wxCoord xdest
, wxCoord ydest
,
1201 wxCoord width
, wxCoord height
,
1203 wxCoord xsrc
, wxCoord ysrc
,
1206 wxCoord xsrcMask
, wxCoord ysrcMask
)
1208 wxCHECK_MSG( Ok(), false, wxT("invalid window dc") );
1210 wxCHECK_MSG( source
, false, wxT("invalid source dc") );
1212 if (!m_window
) return false;
1214 // transform the source DC coords to the device ones
1215 xsrc
= source
->LogicalToDeviceX(xsrc
);
1216 ysrc
= source
->LogicalToDeviceY(ysrc
);
1218 wxClientDC
*srcDC
= (wxClientDC
*)source
;
1219 wxMemoryDC
*memDC
= (wxMemoryDC
*)source
;
1221 bool use_bitmap_method
= false;
1222 bool is_mono
= false;
1224 if (xsrcMask
== -1 && ysrcMask
== -1)
1230 if (srcDC
->m_isMemDC
)
1232 if (!memDC
->m_selected
.Ok()) return false;
1234 is_mono
= (memDC
->m_selected
.GetDepth() == 1);
1236 // we use the "XCopyArea" way to copy a memory dc into
1237 // a different window if the memory dc BOTH
1238 // a) doesn't have any mask or its mask isn't used
1242 if (useMask
&& (memDC
->m_selected
.GetMask()))
1244 // we HAVE TO use the direct way for memory dcs
1245 // that have mask since the XCopyArea doesn't know
1247 use_bitmap_method
= true;
1251 // we HAVE TO use the direct way for memory dcs
1252 // that are bitmaps because XCopyArea doesn't cope
1253 // with different bit depths
1254 use_bitmap_method
= true;
1256 else if ((xsrc
== 0) && (ysrc
== 0) &&
1257 (width
== memDC
->m_selected
.GetWidth()) &&
1258 (height
== memDC
->m_selected
.GetHeight()))
1260 // we SHOULD use the direct way if all of the bitmap
1261 // in the memory dc is copied in which case XCopyArea
1262 // wouldn't be able able to boost performace by reducing
1263 // the area to be scaled
1264 use_bitmap_method
= true;
1268 CalcBoundingBox( xdest
, ydest
);
1269 CalcBoundingBox( xdest
+ width
, ydest
+ height
);
1271 // scale/translate size and position
1272 wxCoord xx
= XLOG2DEV(xdest
);
1273 wxCoord yy
= YLOG2DEV(ydest
);
1275 wxCoord ww
= XLOG2DEVREL(width
);
1276 wxCoord hh
= YLOG2DEVREL(height
);
1278 // compare to current clipping region
1279 if (!m_currentClippingRegion
.IsNull())
1281 wxRegion
tmp( xx
,yy
,ww
,hh
);
1282 tmp
.Intersect( m_currentClippingRegion
);
1287 int old_logical_func
= m_logicalFunction
;
1288 SetLogicalFunction( logical_func
);
1290 if (use_bitmap_method
)
1292 // scale/translate bitmap size
1293 wxCoord bm_width
= memDC
->m_selected
.GetWidth();
1294 wxCoord bm_height
= memDC
->m_selected
.GetHeight();
1296 // Get clip coords for the bitmap. If we don't
1297 // use wxBitmap::Rescale(), which can clip the
1298 // bitmap, these are the same as the original
1305 // interpret userscale of src too
1307 memDC
->GetUserScale(&xsc
,&ysc
);
1308 bm_width
= (int) (bm_width
/ xsc
);
1309 bm_height
= (int) (bm_height
/ ysc
);
1311 wxCoord bm_ww
= XLOG2DEVREL( bm_width
);
1312 wxCoord bm_hh
= YLOG2DEVREL( bm_height
);
1314 // Scale bitmap if required
1315 wxBitmap use_bitmap
= memDC
->m_selected
;
1316 if ((memDC
->m_selected
.GetWidth()!= bm_ww
) || ( memDC
->m_selected
.GetHeight()!= bm_hh
))
1318 // This indicates that the blitting code below will get
1319 // a clipped bitmap and therefore needs to move the origin
1321 wxRegion
tmp( xx
,yy
,ww
,hh
);
1322 tmp
.Intersect( m_currentClippingRegion
);
1323 tmp
.GetBox(cx
,cy
,cw
,ch
);
1325 // Scale and clipped bitmap
1326 use_bitmap
= memDC
->m_selected
.Rescale(cx
-xx
,cy
-yy
,cw
,ch
,bm_ww
,bm_hh
);
1329 // apply mask if any
1330 GdkBitmap
*mask
= (GdkBitmap
*) NULL
;
1331 if (useMask
&& use_bitmap
.GetMask())
1332 mask
= use_bitmap
.GetMask()->GetBitmap();
1334 GdkGC
* use_gc
= is_mono
? m_textGC
: m_penGC
;
1336 GdkBitmap
*new_mask
= (GdkBitmap
*) NULL
;
1340 if (!m_currentClippingRegion
.IsNull())
1343 new_mask
= gdk_pixmap_new( wxGetRootWindow()->window
, bm_ww
, bm_hh
, 1 );
1344 GdkGC
*gc
= gdk_gc_new( new_mask
);
1346 gdk_gc_set_foreground( gc
, &col
);
1347 gdk_gc_set_ts_origin( gc
, -xsrcMask
, -ysrcMask
);
1348 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, bm_ww
, bm_hh
);
1350 gdk_gc_set_background( gc
, &col
);
1352 gdk_gc_set_foreground( gc
, &col
);
1353 gdk_gc_set_clip_region( gc
, m_currentClippingRegion
.GetRegion() );
1354 // was: gdk_gc_set_clip_origin( gc, -xx, -yy );
1355 gdk_gc_set_clip_origin( gc
, -cx
, -cy
);
1356 gdk_gc_set_fill( gc
, GDK_OPAQUE_STIPPLED
);
1357 gdk_gc_set_stipple( gc
, mask
);
1358 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, bm_ww
, bm_hh
);
1360 g_object_unref (gc
);
1363 gdk_gc_set_clip_mask(use_gc
, mask
);
1364 if (new_mask
!= NULL
)
1365 gdk_gc_set_clip_origin(use_gc
, cx
, cy
);
1367 gdk_gc_set_clip_origin(use_gc
, cx
- xsrcMask
, cy
- ysrcMask
);
1370 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1371 // drawing a mono-bitmap (XBitmap) we use the current text GC
1375 GdkPixmap
*bitmap
= gdk_pixmap_new( wxGetRootWindow()->window
, bm_ww
, bm_hh
, -1 );
1376 GdkGC
*gc
= gdk_gc_new( bitmap
);
1377 gdk_gc_set_foreground( gc
, m_textForegroundColour
.GetColor() );
1378 gdk_gc_set_background( gc
, m_textBackgroundColour
.GetColor() );
1379 gdk_wx_draw_bitmap( bitmap
, gc
, use_bitmap
.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1381 gdk_draw_drawable(m_window
, use_gc
, bitmap
, xsrc
, ysrc
, cx
, cy
, cw
, ch
);
1383 g_object_unref (bitmap
);
1384 g_object_unref (gc
);
1388 // was: gdk_draw_drawable( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
1389 gdk_draw_drawable(m_window
, use_gc
, use_bitmap
.GetPixmap(), xsrc
, ysrc
, cx
, cy
, cw
, ch
);
1392 // remove mask again if any
1395 gdk_gc_set_clip_mask(use_gc
, NULL
);
1396 gdk_gc_set_clip_origin(use_gc
, 0, 0);
1397 if (!m_currentClippingRegion
.IsNull())
1398 gdk_gc_set_clip_region(use_gc
, m_currentClippingRegion
.GetRegion());
1402 g_object_unref (new_mask
);
1404 else // use_bitmap_method
1406 if ((width
!= ww
) || (height
!= hh
))
1409 wxRegion
tmp( xx
,yy
,ww
,hh
);
1410 tmp
.Intersect( m_currentClippingRegion
);
1411 wxCoord cx
,cy
,cw
,ch
;
1412 tmp
.GetBox(cx
,cy
,cw
,ch
);
1415 wxBitmap bitmap
= memDC
->m_selected
.Rescale( cx
-xx
, cy
-yy
, cw
, ch
, ww
, hh
);
1417 // draw scaled bitmap
1418 // was: gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
1419 gdk_draw_drawable( m_window
, m_penGC
, bitmap
.GetPixmap(), 0, 0, cx
, cy
, -1, -1 );
1423 // No scaling and not a memory dc with a mask either
1425 // copy including child window contents
1426 gdk_gc_set_subwindow( m_penGC
, GDK_INCLUDE_INFERIORS
);
1427 gdk_draw_drawable( m_window
, m_penGC
,
1431 gdk_gc_set_subwindow( m_penGC
, GDK_CLIP_BY_CHILDREN
);
1435 SetLogicalFunction( old_logical_func
);
1440 void wxWindowDC::DoDrawText( const wxString
&text
, wxCoord x
, wxCoord y
)
1442 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1444 if (!m_window
) return;
1446 if (text
.empty()) return;
1451 wxCHECK_RET( m_context
, wxT("no Pango context") );
1452 wxCHECK_RET( m_layout
, wxT("no Pango layout") );
1453 wxCHECK_RET( m_fontdesc
, wxT("no Pango font description") );
1455 gdk_pango_context_set_colormap( m_context
, m_cmap
);
1457 bool underlined
= m_font
.Ok() && m_font
.GetUnderlined();
1459 const wxCharBuffer data
= wxGTK_CONV( text
);
1462 size_t datalen
= strlen(data
);
1464 // TODO: as soon as Pango provides a function to check at runtime its
1465 // version, we can use it to disable the underline hack for
1466 // Pango >= 1.16 as the "underline of leading/trailing spaces"
1467 // has been fixed there
1468 bool needshack
= underlined
;
1469 char *hackstring
= NULL
;
1473 // a PangoLayout which has leading/trailing spaces with underlined font
1474 // is not correctly drawn by this pango version: Pango won't underline the spaces.
1475 // This can be a problem; e.g. wxHTML rendering of underlined text relies on
1476 // this behaviour. To workaround this problem, we use a special hack here
1477 // suggested by pango maintainer Behdad Esfahbod: we prepend and append two
1478 // empty space characters and give them a dummy colour attribute.
1479 // This will force Pango to underline the leading/trailing spaces, too.
1481 // need to realloc the string to prepend & append our special characters
1482 hackstring
= (char*)malloc((datalen
+7)*sizeof(char));
1484 // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1485 strcpy(hackstring
, "\342\200\214");
1487 // copy the user string
1488 memcpy(&hackstring
[3], data
, datalen
);
1490 // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1491 strcpy(&hackstring
[datalen
+3], "\342\200\214");
1493 // the special characters that we added require 6 additional bytes:
1496 pango_layout_set_text(m_layout
, hackstring
, datalen
);
1500 pango_layout_set_text(m_layout
, data
, datalen
);
1505 PangoAttrList
*attrs
= pango_attr_list_new();
1506 PangoAttribute
*a
= pango_attr_underline_new(PANGO_UNDERLINE_SINGLE
);
1508 a
->end_index
= datalen
;
1509 pango_attr_list_insert(attrs
, a
);
1513 // dummy colour for the leading space
1514 a
= pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1517 pango_attr_list_insert(attrs
, a
);
1519 // dummy colour for the trailing space
1520 a
= pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1521 a
->start_index
= datalen
- 1;
1522 a
->end_index
= datalen
;
1523 pango_attr_list_insert(attrs
, a
);
1526 pango_layout_set_attributes(m_layout
, attrs
);
1527 pango_attr_list_unref(attrs
);
1532 if (fabs(m_scaleY
- 1.0) > 0.00001)
1534 // If there is a user or actually any scale applied to
1535 // the device context, scale the font.
1537 // scale font description
1538 gint oldSize
= pango_font_description_get_size( m_fontdesc
);
1539 double size
= oldSize
;
1540 size
= size
* m_scaleY
;
1541 pango_font_description_set_size( m_fontdesc
, (gint
)size
);
1543 // actually apply scaled font
1544 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1546 pango_layout_get_pixel_size( m_layout
, &w
, &h
);
1547 if ( m_backgroundMode
== wxSOLID
)
1549 gdk_gc_set_foreground(m_textGC
, m_textBackgroundColour
.GetColor());
1550 gdk_draw_rectangle(m_window
, m_textGC
, TRUE
, x
, y
, w
, h
);
1551 gdk_gc_set_foreground(m_textGC
, m_textForegroundColour
.GetColor());
1555 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1556 gdk_draw_layout( m_window
, m_textGC
, x
-w
, y
, m_layout
);
1558 gdk_draw_layout( m_window
, m_textGC
, x
, y
, m_layout
);
1560 // reset unscaled size
1561 pango_font_description_set_size( m_fontdesc
, oldSize
);
1563 // actually apply unscaled font
1564 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1568 pango_layout_get_pixel_size( m_layout
, &w
, &h
);
1569 if ( m_backgroundMode
== wxSOLID
)
1571 gdk_gc_set_foreground(m_textGC
, m_textBackgroundColour
.GetColor());
1572 gdk_draw_rectangle(m_window
, m_textGC
, TRUE
, x
, y
, w
, h
);
1573 gdk_gc_set_foreground(m_textGC
, m_textForegroundColour
.GetColor());
1577 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1578 gdk_draw_layout( m_window
, m_textGC
, x
-w
, y
, m_layout
);
1580 gdk_draw_layout( m_window
, m_textGC
, x
, y
, m_layout
);
1585 // undo underline attributes setting:
1586 pango_layout_set_attributes(m_layout
, NULL
);
1592 width
= wxCoord(width
/ m_scaleX
);
1593 height
= wxCoord(height
/ m_scaleY
);
1594 CalcBoundingBox (x
+ width
, y
+ height
);
1595 CalcBoundingBox (x
, y
);
1602 // TODO: There is an example of rotating text with GTK2 that would probably be
1603 // a better approach here:
1604 // http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
1606 void wxWindowDC::DoDrawRotatedText( const wxString
&text
, wxCoord x
, wxCoord y
, double angle
)
1608 if (!m_window
|| text
.empty())
1611 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1613 if ( wxIsNullDouble(angle
) )
1615 DrawText(text
, x
, y
);
1622 // TODO: implement later without GdkFont for GTK 2.0
1623 GetTextExtent(text
, &w
, &h
, NULL
,NULL
, &m_font
);
1625 // draw the string normally
1628 dc
.SelectObject(src
);
1629 dc
.SetFont(GetFont());
1630 dc
.SetBackground(*wxBLACK_BRUSH
);
1631 dc
.SetBrush(*wxBLACK_BRUSH
);
1633 dc
.SetTextForeground( *wxWHITE
);
1634 dc
.DrawText(text
, 0, 0);
1635 dc
.SelectObject(wxNullBitmap
);
1637 // Calculate the size of the rotated bounding box.
1638 double rad
= DegToRad(angle
);
1639 double dx
= cos(rad
),
1642 // the rectngle vertices are counted clockwise with the first one being at
1643 // (0, 0) (or, rather, at (x, y))
1645 y2
= -w
*dy
; // y axis points to the bottom, hence minus
1648 double x3
= x4
+ x2
,
1652 wxCoord maxX
= (wxCoord
)(dmax(x2
, dmax(x3
, x4
)) + 0.5),
1653 maxY
= (wxCoord
)(dmax(y2
, dmax(y3
, y4
)) + 0.5),
1654 minX
= (wxCoord
)(dmin(x2
, dmin(x3
, x4
)) - 0.5),
1655 minY
= (wxCoord
)(dmin(y2
, dmin(y3
, y4
)) - 0.5);
1658 wxImage image
= src
.ConvertToImage();
1660 image
.ConvertColourToAlpha( m_textForegroundColour
.Red(),
1661 m_textForegroundColour
.Green(),
1662 m_textForegroundColour
.Blue() );
1663 image
= image
.Rotate( rad
, wxPoint(0,0) );
1665 int i_angle
= (int) angle
;
1666 i_angle
= i_angle
% 360;
1670 if ((i_angle
>= 90.0) && (i_angle
< 270.0))
1671 xoffset
= image
.GetWidth();
1673 if ((i_angle
>= 0.0) && (i_angle
< 180.0))
1674 yoffset
= image
.GetHeight();
1676 if ((i_angle
>= 0) && (i_angle
< 90))
1677 yoffset
-= (int)( cos(rad
)*h
);
1678 if ((i_angle
>= 90) && (i_angle
< 180))
1679 xoffset
-= (int)( sin(rad
)*h
);
1680 if ((i_angle
>= 180) && (i_angle
< 270))
1681 yoffset
-= (int)( cos(rad
)*h
);
1682 if ((i_angle
>= 270) && (i_angle
< 360))
1683 xoffset
-= (int)( sin(rad
)*h
);
1685 int i_x
= x
- xoffset
;
1686 int i_y
= y
- yoffset
;
1689 DoDrawBitmap( src
, i_x
, i_y
, true );
1692 // it would be better to draw with non underlined font and draw the line
1693 // manually here (it would be more straight...)
1695 if ( m_font
.GetUnderlined() )
1697 gdk_draw_line( m_window
, m_textGC
,
1698 XLOG2DEV(x
+ x4
), YLOG2DEV(y
+ y4
+ font
->descent
),
1699 XLOG2DEV(x
+ x3
), YLOG2DEV(y
+ y3
+ font
->descent
));
1703 // update the bounding box
1704 CalcBoundingBox(x
+ minX
, y
+ minY
);
1705 CalcBoundingBox(x
+ maxX
, y
+ maxY
);
1708 void wxWindowDC::DoGetTextExtent(const wxString
&string
,
1709 wxCoord
*width
, wxCoord
*height
,
1710 wxCoord
*descent
, wxCoord
*externalLeading
,
1711 wxFont
*theFont
) const
1719 if ( externalLeading
)
1720 *externalLeading
= 0;
1725 // ensure that theFont is always non-NULL
1726 if ( !theFont
|| !theFont
->Ok() )
1727 theFont
= wx_const_cast(wxFont
*, &m_font
);
1729 // and use it if it's valid
1730 if ( theFont
->Ok() )
1732 pango_layout_set_font_description
1735 theFont
->GetNativeFontInfo()->description
1739 // Set layout's text
1740 const wxCharBuffer dataUTF8
= wxGTK_CONV_FONT(string
, *theFont
);
1743 // hardly ideal, but what else can we do if conversion failed?
1747 pango_layout_set_text( m_layout
, dataUTF8
, strlen(dataUTF8
) );
1752 pango_layout_get_pixel_size( m_layout
, width
, &h
);
1753 PangoLayoutIter
*iter
= pango_layout_get_iter(m_layout
);
1754 int baseline
= pango_layout_iter_get_baseline(iter
);
1755 pango_layout_iter_free(iter
);
1756 *descent
= h
- PANGO_PIXELS(baseline
);
1759 *height
= (wxCoord
) h
;
1763 pango_layout_get_pixel_size( m_layout
, width
, height
);
1766 // Reset old font description
1768 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1771 wxCoord
wxWindowDC::GetCharWidth() const
1773 pango_layout_set_text( m_layout
, "H", 1 );
1775 pango_layout_get_pixel_size( m_layout
, &w
, NULL
);
1779 wxCoord
wxWindowDC::GetCharHeight() const
1781 PangoFontMetrics
*metrics
= pango_context_get_metrics (m_context
, m_fontdesc
, pango_context_get_language(m_context
));
1782 return PANGO_PIXELS (pango_font_metrics_get_descent (metrics
) + pango_font_metrics_get_ascent (metrics
));
1785 void wxWindowDC::Clear()
1787 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1789 if (!m_window
) return;
1791 // VZ: the code below results in infinite recursion and crashes when
1792 // dc.Clear() is done from OnPaint() so I disable it for now.
1793 // I don't know what the correct fix is but Clear() surely should not
1794 // reenter OnPaint()!
1796 /* - we either are a memory dc or have a window as the
1797 owner. anything else shouldn't happen.
1798 - we don't use gdk_window_clear() as we don't set
1799 the window's background colour anymore. it is too
1800 much pain to keep the DC's and the window's back-
1801 ground colour in synch. */
1812 GetSize( &width
, &height
);
1813 gdk_draw_rectangle( m_window
, m_bgGC
, TRUE
, 0, 0, width
, height
);
1818 GetSize( &width
, &height
);
1819 gdk_draw_rectangle( m_window
, m_bgGC
, TRUE
, 0, 0, width
, height
);
1823 void wxWindowDC::SetFont( const wxFont
&font
)
1830 pango_font_description_free( m_fontdesc
);
1832 m_fontdesc
= pango_font_description_copy( m_font
.GetNativeFontInfo()->description
);
1837 PangoContext
*oldContext
= m_context
;
1839 m_context
= m_owner
->GtkGetPangoDefaultContext();
1841 // If we switch back/forth between different contexts
1842 // we also have to create a new layout. I think so,
1843 // at least, and it doesn't hurt to do it.
1844 if (oldContext
!= m_context
)
1847 g_object_unref (m_layout
);
1849 m_layout
= pango_layout_new( m_context
);
1853 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1857 void wxWindowDC::SetPen( const wxPen
&pen
)
1859 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1861 if (m_pen
== pen
) return;
1865 if (!m_pen
.Ok()) return;
1867 if (!m_window
) return;
1869 gint width
= m_pen
.GetWidth();
1872 // CMB: if width is non-zero scale it with the dc
1877 // X doesn't allow different width in x and y and so we take
1880 ( fabs((double) XLOG2DEVREL(width
)) +
1881 fabs((double) YLOG2DEVREL(width
)) ) / 2.0;
1885 // width can't be 0 or an internal GTK error occurs inside
1886 // gdk_gc_set_dashes() below
1891 static const wxGTKDash dotted
[] = {1, 1};
1892 static const wxGTKDash short_dashed
[] = {2, 2};
1893 static const wxGTKDash wxCoord_dashed
[] = {2, 4};
1894 static const wxGTKDash dotted_dashed
[] = {3, 3, 1, 3};
1896 // We express dash pattern in pen width unit, so we are
1897 // independent of zoom factor and so on...
1899 const wxGTKDash
*req_dash
;
1901 GdkLineStyle lineStyle
= GDK_LINE_SOLID
;
1902 switch (m_pen
.GetStyle())
1906 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1907 req_nb_dash
= m_pen
.GetDashCount();
1908 req_dash
= (wxGTKDash
*)m_pen
.GetDash();
1913 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1920 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1922 req_dash
= wxCoord_dashed
;
1927 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1929 req_dash
= short_dashed
;
1934 // lineStyle = GDK_LINE_DOUBLE_DASH;
1935 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1937 req_dash
= dotted_dashed
;
1942 case wxSTIPPLE_MASK_OPAQUE
:
1947 lineStyle
= GDK_LINE_SOLID
;
1948 req_dash
= (wxGTKDash
*)NULL
;
1954 if (req_dash
&& req_nb_dash
)
1956 wxGTKDash
*real_req_dash
= new wxGTKDash
[req_nb_dash
];
1959 for (int i
= 0; i
< req_nb_dash
; i
++)
1960 real_req_dash
[i
] = req_dash
[i
] * width
;
1961 gdk_gc_set_dashes( m_penGC
, 0, real_req_dash
, req_nb_dash
);
1962 delete[] real_req_dash
;
1966 // No Memory. We use non-scaled dash pattern...
1967 gdk_gc_set_dashes( m_penGC
, 0, (wxGTKDash
*)req_dash
, req_nb_dash
);
1971 GdkCapStyle capStyle
= GDK_CAP_ROUND
;
1972 switch (m_pen
.GetCap())
1974 case wxCAP_PROJECTING
: { capStyle
= GDK_CAP_PROJECTING
; break; }
1975 case wxCAP_BUTT
: { capStyle
= GDK_CAP_BUTT
; break; }
1982 capStyle
= GDK_CAP_NOT_LAST
;
1986 capStyle
= GDK_CAP_ROUND
;
1992 GdkJoinStyle joinStyle
= GDK_JOIN_ROUND
;
1993 switch (m_pen
.GetJoin())
1995 case wxJOIN_BEVEL
: { joinStyle
= GDK_JOIN_BEVEL
; break; }
1996 case wxJOIN_MITER
: { joinStyle
= GDK_JOIN_MITER
; break; }
1998 default: { joinStyle
= GDK_JOIN_ROUND
; break; }
2001 gdk_gc_set_line_attributes( m_penGC
, width
, lineStyle
, capStyle
, joinStyle
);
2003 m_pen
.GetColour().CalcPixel( m_cmap
);
2004 gdk_gc_set_foreground( m_penGC
, m_pen
.GetColour().GetColor() );
2007 void wxWindowDC::SetBrush( const wxBrush
&brush
)
2009 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2011 if (m_brush
== brush
) return;
2015 if (!m_brush
.Ok()) return;
2017 if (!m_window
) return;
2019 m_brush
.GetColour().CalcPixel( m_cmap
);
2020 gdk_gc_set_foreground( m_brushGC
, m_brush
.GetColour().GetColor() );
2022 gdk_gc_set_fill( m_brushGC
, GDK_SOLID
);
2024 if ((m_brush
.GetStyle() == wxSTIPPLE
) && (m_brush
.GetStipple()->Ok()))
2026 if (m_brush
.GetStipple()->GetDepth() != 1)
2028 gdk_gc_set_fill( m_brushGC
, GDK_TILED
);
2029 gdk_gc_set_tile( m_brushGC
, m_brush
.GetStipple()->GetPixmap() );
2033 gdk_gc_set_fill( m_brushGC
, GDK_STIPPLED
);
2034 gdk_gc_set_stipple( m_brushGC
, m_brush
.GetStipple()->GetPixmap() );
2038 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
2040 gdk_gc_set_fill( m_textGC
, GDK_OPAQUE_STIPPLED
);
2041 gdk_gc_set_stipple( m_textGC
, m_brush
.GetStipple()->GetMask()->GetBitmap() );
2044 if (m_brush
.IsHatch())
2046 gdk_gc_set_fill( m_brushGC
, GDK_STIPPLED
);
2047 int num
= m_brush
.GetStyle() - wxBDIAGONAL_HATCH
;
2048 gdk_gc_set_stipple( m_brushGC
, hatches
[num
] );
2052 void wxWindowDC::SetBackground( const wxBrush
&brush
)
2054 /* CMB 21/7/98: Added SetBackground. Sets background brush
2055 * for Clear() and bg colour for shapes filled with cross-hatch brush */
2057 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2059 if (m_backgroundBrush
== brush
) return;
2061 m_backgroundBrush
= brush
;
2063 if (!m_backgroundBrush
.Ok()) return;
2065 if (!m_window
) return;
2067 m_backgroundBrush
.GetColour().CalcPixel( m_cmap
);
2068 gdk_gc_set_background( m_brushGC
, m_backgroundBrush
.GetColour().GetColor() );
2069 gdk_gc_set_background( m_penGC
, m_backgroundBrush
.GetColour().GetColor() );
2070 gdk_gc_set_background( m_bgGC
, m_backgroundBrush
.GetColour().GetColor() );
2071 gdk_gc_set_foreground( m_bgGC
, m_backgroundBrush
.GetColour().GetColor() );
2073 gdk_gc_set_fill( m_bgGC
, GDK_SOLID
);
2075 if ((m_backgroundBrush
.GetStyle() == wxSTIPPLE
) && (m_backgroundBrush
.GetStipple()->Ok()))
2077 if (m_backgroundBrush
.GetStipple()->GetDepth() != 1)
2079 gdk_gc_set_fill( m_bgGC
, GDK_TILED
);
2080 gdk_gc_set_tile( m_bgGC
, m_backgroundBrush
.GetStipple()->GetPixmap() );
2084 gdk_gc_set_fill( m_bgGC
, GDK_STIPPLED
);
2085 gdk_gc_set_stipple( m_bgGC
, m_backgroundBrush
.GetStipple()->GetPixmap() );
2089 if (m_backgroundBrush
.IsHatch())
2091 gdk_gc_set_fill( m_bgGC
, GDK_STIPPLED
);
2092 int num
= m_backgroundBrush
.GetStyle() - wxBDIAGONAL_HATCH
;
2093 gdk_gc_set_stipple( m_bgGC
, hatches
[num
] );
2097 void wxWindowDC::SetLogicalFunction( int function
)
2099 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2101 if (m_logicalFunction
== function
)
2104 // VZ: shouldn't this be a CHECK?
2111 case wxXOR
: mode
= GDK_XOR
; break;
2112 case wxINVERT
: mode
= GDK_INVERT
; break;
2113 case wxOR_REVERSE
: mode
= GDK_OR_REVERSE
; break;
2114 case wxAND_REVERSE
: mode
= GDK_AND_REVERSE
; break;
2115 case wxCLEAR
: mode
= GDK_CLEAR
; break;
2116 case wxSET
: mode
= GDK_SET
; break;
2117 case wxOR_INVERT
: mode
= GDK_OR_INVERT
; break;
2118 case wxAND
: mode
= GDK_AND
; break;
2119 case wxOR
: mode
= GDK_OR
; break;
2120 case wxEQUIV
: mode
= GDK_EQUIV
; break;
2121 case wxNAND
: mode
= GDK_NAND
; break;
2122 case wxAND_INVERT
: mode
= GDK_AND_INVERT
; break;
2123 case wxCOPY
: mode
= GDK_COPY
; break;
2124 case wxNO_OP
: mode
= GDK_NOOP
; break;
2125 case wxSRC_INVERT
: mode
= GDK_COPY_INVERT
; break;
2127 // unsupported by GTK
2128 case wxNOR
: mode
= GDK_COPY
; break;
2130 wxFAIL_MSG( wxT("unsupported logical function") );
2134 m_logicalFunction
= function
;
2136 gdk_gc_set_function( m_penGC
, mode
);
2137 gdk_gc_set_function( m_brushGC
, mode
);
2139 // to stay compatible with wxMSW, we don't apply ROPs to the text
2140 // operations (i.e. DrawText/DrawRotatedText).
2141 // True, but mono-bitmaps use the m_textGC and they use ROPs as well.
2142 gdk_gc_set_function( m_textGC
, mode
);
2145 void wxWindowDC::SetTextForeground( const wxColour
&col
)
2147 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2149 // don't set m_textForegroundColour to an invalid colour as we'd crash
2150 // later then (we use m_textForegroundColour.GetColor() without checking
2152 if ( !col
.Ok() || (m_textForegroundColour
== col
) )
2155 m_textForegroundColour
= col
;
2159 m_textForegroundColour
.CalcPixel( m_cmap
);
2160 gdk_gc_set_foreground( m_textGC
, m_textForegroundColour
.GetColor() );
2164 void wxWindowDC::SetTextBackground( const wxColour
&col
)
2166 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2169 if ( !col
.Ok() || (m_textBackgroundColour
== col
) )
2172 m_textBackgroundColour
= col
;
2176 m_textBackgroundColour
.CalcPixel( m_cmap
);
2177 gdk_gc_set_background( m_textGC
, m_textBackgroundColour
.GetColor() );
2181 void wxWindowDC::SetBackgroundMode( int mode
)
2183 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2185 m_backgroundMode
= mode
;
2187 if (!m_window
) return;
2189 // CMB 21/7/98: fill style of cross-hatch brushes is affected by
2190 // transparent/solid background mode
2192 if (m_brush
.GetStyle() != wxSOLID
&& m_brush
.GetStyle() != wxTRANSPARENT
)
2194 gdk_gc_set_fill( m_brushGC
,
2195 (m_backgroundMode
== wxTRANSPARENT
) ? GDK_STIPPLED
: GDK_OPAQUE_STIPPLED
);
2199 void wxWindowDC::SetPalette( const wxPalette
& WXUNUSED(palette
) )
2201 wxFAIL_MSG( wxT("wxWindowDC::SetPalette not implemented") );
2204 void wxWindowDC::DoSetClippingRegion( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
2206 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2208 if (!m_window
) return;
2211 rect
.x
= XLOG2DEV(x
);
2212 rect
.y
= YLOG2DEV(y
);
2213 rect
.width
= XLOG2DEVREL(width
);
2214 rect
.height
= YLOG2DEVREL(height
);
2216 if (m_owner
&& m_owner
->m_wxwindow
&& (m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
))
2218 rect
.x
-= rect
.width
;
2221 if (!m_currentClippingRegion
.IsNull())
2222 m_currentClippingRegion
.Intersect( rect
);
2224 m_currentClippingRegion
.Union( rect
);
2226 #if USE_PAINT_REGION
2227 if (!m_paintClippingRegion
.IsNull())
2228 m_currentClippingRegion
.Intersect( m_paintClippingRegion
);
2231 wxCoord xx
, yy
, ww
, hh
;
2232 m_currentClippingRegion
.GetBox( xx
, yy
, ww
, hh
);
2233 wxDC::DoSetClippingRegion( xx
, yy
, ww
, hh
);
2235 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2236 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2237 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2238 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2241 void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion
®ion
)
2243 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2247 DestroyClippingRegion();
2251 if (!m_window
) return;
2253 if (!m_currentClippingRegion
.IsNull())
2254 m_currentClippingRegion
.Intersect( region
);
2256 m_currentClippingRegion
.Union( region
);
2258 #if USE_PAINT_REGION
2259 if (!m_paintClippingRegion
.IsNull())
2260 m_currentClippingRegion
.Intersect( m_paintClippingRegion
);
2263 wxCoord xx
, yy
, ww
, hh
;
2264 m_currentClippingRegion
.GetBox( xx
, yy
, ww
, hh
);
2265 wxDC::DoSetClippingRegion( xx
, yy
, ww
, hh
);
2267 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2268 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2269 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2270 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2273 void wxWindowDC::DestroyClippingRegion()
2275 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2277 wxDC::DestroyClippingRegion();
2279 m_currentClippingRegion
.Clear();
2281 #if USE_PAINT_REGION
2282 if (!m_paintClippingRegion
.IsEmpty())
2283 m_currentClippingRegion
.Union( m_paintClippingRegion
);
2286 if (!m_window
) return;
2288 if (m_currentClippingRegion
.IsEmpty())
2290 gdk_gc_set_clip_rectangle( m_penGC
, (GdkRectangle
*) NULL
);
2291 gdk_gc_set_clip_rectangle( m_brushGC
, (GdkRectangle
*) NULL
);
2292 gdk_gc_set_clip_rectangle( m_textGC
, (GdkRectangle
*) NULL
);
2293 gdk_gc_set_clip_rectangle( m_bgGC
, (GdkRectangle
*) NULL
);
2297 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2298 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2299 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2300 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2304 void wxWindowDC::Destroy()
2306 if (m_penGC
) wxFreePoolGC( m_penGC
);
2307 m_penGC
= (GdkGC
*) NULL
;
2308 if (m_brushGC
) wxFreePoolGC( m_brushGC
);
2309 m_brushGC
= (GdkGC
*) NULL
;
2310 if (m_textGC
) wxFreePoolGC( m_textGC
);
2311 m_textGC
= (GdkGC
*) NULL
;
2312 if (m_bgGC
) wxFreePoolGC( m_bgGC
);
2313 m_bgGC
= (GdkGC
*) NULL
;
2316 void wxWindowDC::SetDeviceOrigin( wxCoord x
, wxCoord y
)
2318 m_deviceOriginX
= x
;
2319 m_deviceOriginY
= y
;
2321 ComputeScaleAndOrigin();
2324 void wxWindowDC::SetAxisOrientation( bool xLeftRight
, bool yBottomUp
)
2326 m_signX
= (xLeftRight
? 1 : -1);
2327 m_signY
= (yBottomUp
? -1 : 1);
2329 if (m_owner
&& m_owner
->m_wxwindow
&& (m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
))
2332 ComputeScaleAndOrigin();
2335 void wxWindowDC::ComputeScaleAndOrigin()
2337 const wxRealPoint
origScale(m_scaleX
, m_scaleY
);
2339 wxDC::ComputeScaleAndOrigin();
2341 // if scale has changed call SetPen to recalulate the line width
2342 if ( wxRealPoint(m_scaleX
, m_scaleY
) != origScale
&& m_pen
.Ok() )
2344 // this is a bit artificial, but we need to force wxDC to think the pen
2352 // Resolution in pixels per logical inch
2353 wxSize
wxWindowDC::GetPPI() const
2355 return wxSize( (int) (m_mm_to_pix_x
* 25.4 + 0.5), (int) (m_mm_to_pix_y
* 25.4 + 0.5));
2358 int wxWindowDC::GetDepth() const
2360 return gdk_drawable_get_depth(m_window
);
2364 //-----------------------------------------------------------------------------
2366 //-----------------------------------------------------------------------------
2368 IMPLEMENT_DYNAMIC_CLASS(wxPaintDC
, wxClientDC
)
2370 // Limit the paint region to the window size. Sometimes
2371 // the paint region is too big, and this risks X11 errors
2372 static void wxLimitRegionToSize(wxRegion
& region
, const wxSize
& sz
)
2374 wxRect originalRect
= region
.GetBox();
2375 wxRect
rect(originalRect
);
2376 if (rect
.width
+ rect
.x
> sz
.x
)
2377 rect
.width
= sz
.x
- rect
.x
;
2378 if (rect
.height
+ rect
.y
> sz
.y
)
2379 rect
.height
= sz
.y
- rect
.y
;
2380 if (rect
!= originalRect
)
2382 region
= wxRegion(rect
);
2383 wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
2384 originalRect
.x
, originalRect
.y
, originalRect
.width
, originalRect
.height
,
2385 rect
.x
, rect
.y
, rect
.width
, rect
.height
);
2389 wxPaintDC::wxPaintDC( wxWindow
*win
)
2392 #if USE_PAINT_REGION
2393 if (!win
->m_clipPaintRegion
)
2396 wxSize sz
= win
->GetSize();
2397 m_paintClippingRegion
= win
->m_nativeUpdateRegion
;
2398 wxLimitRegionToSize(m_paintClippingRegion
, sz
);
2400 GdkRegion
*region
= m_paintClippingRegion
.GetRegion();
2403 m_currentClippingRegion
.Union( m_paintClippingRegion
);
2404 wxLimitRegionToSize(m_currentClippingRegion
, sz
);
2406 if (sz
.x
<= 0 || sz
.y
<= 0)
2409 gdk_gc_set_clip_region( m_penGC
, region
);
2410 gdk_gc_set_clip_region( m_brushGC
, region
);
2411 gdk_gc_set_clip_region( m_textGC
, region
);
2412 gdk_gc_set_clip_region( m_bgGC
, region
);
2414 #endif // USE_PAINT_REGION
2417 //-----------------------------------------------------------------------------
2419 //-----------------------------------------------------------------------------
2421 IMPLEMENT_DYNAMIC_CLASS(wxClientDC
, wxWindowDC
)
2423 wxClientDC::wxClientDC( wxWindow
*win
)
2426 wxCHECK_RET( win
, _T("NULL window in wxClientDC::wxClientDC") );
2428 #ifdef __WXUNIVERSAL__
2429 wxPoint ptOrigin
= win
->GetClientAreaOrigin();
2430 SetDeviceOrigin(ptOrigin
.x
, ptOrigin
.y
);
2431 wxSize size
= win
->GetClientSize();
2432 SetClippingRegion(wxPoint(0, 0), size
);
2433 #endif // __WXUNIVERSAL__
2436 void wxClientDC::DoGetSize(int *width
, int *height
) const
2438 wxCHECK_RET( m_owner
, _T("GetSize() doesn't work without window") );
2440 m_owner
->GetClientSize( width
, height
);
2443 // ----------------------------------------------------------------------------
2445 // ----------------------------------------------------------------------------
2447 class wxDCModule
: public wxModule
2454 DECLARE_DYNAMIC_CLASS(wxDCModule
)
2457 IMPLEMENT_DYNAMIC_CLASS(wxDCModule
, wxModule
)
2459 bool wxDCModule::OnInit()
2465 void wxDCModule::OnExit()