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
);
395 gdk_gc_set_colormap( m_textGC
, m_cmap
);
398 m_pen
.GetColour().CalcPixel( m_cmap
);
399 gdk_gc_set_foreground( m_penGC
, m_pen
.GetColour().GetColor() );
400 gdk_gc_set_background( m_penGC
, bg_col
);
402 gdk_gc_set_line_attributes( m_penGC
, 0, GDK_LINE_SOLID
, GDK_CAP_NOT_LAST
, GDK_JOIN_ROUND
);
405 m_brush
.GetColour().CalcPixel( m_cmap
);
406 gdk_gc_set_foreground( m_brushGC
, m_brush
.GetColour().GetColor() );
407 gdk_gc_set_background( m_brushGC
, bg_col
);
409 gdk_gc_set_fill( m_brushGC
, GDK_SOLID
);
412 gdk_gc_set_background( m_bgGC
, bg_col
);
413 gdk_gc_set_foreground( m_bgGC
, bg_col
);
415 gdk_gc_set_fill( m_bgGC
, GDK_SOLID
);
418 gdk_gc_set_function( m_textGC
, GDK_COPY
);
419 gdk_gc_set_function( m_brushGC
, GDK_COPY
);
420 gdk_gc_set_function( m_penGC
, GDK_COPY
);
423 gdk_gc_set_clip_rectangle( m_penGC
, (GdkRectangle
*) NULL
);
424 gdk_gc_set_clip_rectangle( m_brushGC
, (GdkRectangle
*) NULL
);
425 gdk_gc_set_clip_rectangle( m_textGC
, (GdkRectangle
*) NULL
);
426 gdk_gc_set_clip_rectangle( m_bgGC
, (GdkRectangle
*) NULL
);
430 hatch_bitmap
= hatches
;
431 hatch_bitmap
[0] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, bdiag_bits
, bdiag_width
, bdiag_height
);
432 hatch_bitmap
[1] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, cdiag_bits
, cdiag_width
, cdiag_height
);
433 hatch_bitmap
[2] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, fdiag_bits
, fdiag_width
, fdiag_height
);
434 hatch_bitmap
[3] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, cross_bits
, cross_width
, cross_height
);
435 hatch_bitmap
[4] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, horiz_bits
, horiz_width
, horiz_height
);
436 hatch_bitmap
[5] = gdk_bitmap_create_from_data( (GdkWindow
*) NULL
, verti_bits
, verti_width
, verti_height
);
440 void wxWindowDC::DoGetSize( int* width
, int* height
) const
442 wxCHECK_RET( m_owner
, _T("GetSize() doesn't work without window") );
444 m_owner
->GetSize(width
, height
);
447 extern bool wxDoFloodFill(wxDC
*dc
, wxCoord x
, wxCoord y
,
448 const wxColour
& col
, int style
);
450 bool wxWindowDC::DoFloodFill(wxCoord x
, wxCoord y
,
451 const wxColour
& col
, int style
)
453 return wxDoFloodFill(this, x
, y
, col
, style
);
456 bool wxWindowDC::DoGetPixel( wxCoord x1
, wxCoord y1
, wxColour
*col
) const
458 // Generic (and therefore rather inefficient) method.
459 // Could be improved.
461 wxBitmap
bitmap(1, 1);
462 memdc
.SelectObject(bitmap
);
463 memdc
.Blit(0, 0, 1, 1, (wxDC
*) this, x1
, y1
);
464 memdc
.SelectObject(wxNullBitmap
);
466 wxImage image
= bitmap
.ConvertToImage();
467 col
->Set(image
.GetRed(0, 0), image
.GetGreen(0, 0), image
.GetBlue(0, 0));
471 void wxWindowDC::DoDrawLine( wxCoord x1
, wxCoord y1
, wxCoord x2
, wxCoord y2
)
473 wxCHECK_RET( Ok(), wxT("invalid window dc") );
475 if (m_pen
.GetStyle() != wxTRANSPARENT
)
478 gdk_draw_line( m_window
, m_penGC
, XLOG2DEV(x1
), YLOG2DEV(y1
), XLOG2DEV(x2
), YLOG2DEV(y2
) );
480 CalcBoundingBox(x1
, y1
);
481 CalcBoundingBox(x2
, y2
);
485 void wxWindowDC::DoCrossHair( wxCoord x
, wxCoord y
)
487 wxCHECK_RET( Ok(), wxT("invalid window dc") );
489 if (m_pen
.GetStyle() != wxTRANSPARENT
)
494 wxCoord xx
= XLOG2DEV(x
);
495 wxCoord yy
= YLOG2DEV(y
);
498 gdk_draw_line( m_window
, m_penGC
, 0, yy
, XLOG2DEVREL(w
), yy
);
499 gdk_draw_line( m_window
, m_penGC
, xx
, 0, xx
, YLOG2DEVREL(h
) );
504 void wxWindowDC::DoDrawArc( wxCoord x1
, wxCoord y1
, wxCoord x2
, wxCoord y2
,
505 wxCoord xc
, wxCoord yc
)
507 wxCHECK_RET( Ok(), wxT("invalid window dc") );
509 wxCoord xx1
= XLOG2DEV(x1
);
510 wxCoord yy1
= YLOG2DEV(y1
);
511 wxCoord xx2
= XLOG2DEV(x2
);
512 wxCoord yy2
= YLOG2DEV(y2
);
513 wxCoord xxc
= XLOG2DEV(xc
);
514 wxCoord yyc
= YLOG2DEV(yc
);
515 double dx
= xx1
- xxc
;
516 double dy
= yy1
- yyc
;
517 double radius
= sqrt((double)(dx
*dx
+dy
*dy
));
518 wxCoord r
= (wxCoord
)radius
;
519 double radius1
, radius2
;
521 if (xx1
== xx2
&& yy1
== yy2
)
526 else if ( wxIsNullDouble(radius
) )
533 radius1
= (xx1
- xxc
== 0) ?
534 (yy1
- yyc
< 0) ? 90.0 : -90.0 :
535 -atan2(double(yy1
-yyc
), double(xx1
-xxc
)) * RAD2DEG
;
536 radius2
= (xx2
- xxc
== 0) ?
537 (yy2
- yyc
< 0) ? 90.0 : -90.0 :
538 -atan2(double(yy2
-yyc
), double(xx2
-xxc
)) * RAD2DEG
;
540 wxCoord alpha1
= wxCoord(radius1
* 64.0);
541 wxCoord alpha2
= wxCoord((radius2
- radius1
) * 64.0);
542 while (alpha2
<= 0) alpha2
+= 360*64;
543 while (alpha1
> 360*64) alpha1
-= 360*64;
547 if (m_brush
.GetStyle() != wxTRANSPARENT
)
549 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
551 gdk_gc_set_ts_origin( m_textGC
,
552 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
553 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
554 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
555 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
557 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
559 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
560 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
561 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
563 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
565 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
566 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
567 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
569 if (m_brush
.GetStyle() == wxSTIPPLE
)
571 gdk_gc_set_ts_origin( m_brushGC
,
572 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
573 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
574 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
575 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
579 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
583 if (m_pen
.GetStyle() != wxTRANSPARENT
)
585 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xxc
-r
, yyc
-r
, 2*r
,2*r
, alpha1
, alpha2
);
587 if ((m_brush
.GetStyle() != wxTRANSPARENT
) && (alpha2
- alpha1
!= 360*64))
589 gdk_draw_line( m_window
, m_penGC
, xx1
, yy1
, xxc
, yyc
);
590 gdk_draw_line( m_window
, m_penGC
, xxc
, yyc
, xx2
, yy2
);
595 CalcBoundingBox (x1
, y1
);
596 CalcBoundingBox (x2
, y2
);
599 void wxWindowDC::DoDrawEllipticArc( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
, double sa
, double ea
)
601 wxCHECK_RET( Ok(), wxT("invalid window dc") );
603 wxCoord xx
= XLOG2DEV(x
);
604 wxCoord yy
= YLOG2DEV(y
);
605 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
606 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
608 // CMB: handle -ve width and/or height
609 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
610 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
614 wxCoord start
= wxCoord(sa
* 64.0);
615 wxCoord end
= wxCoord((ea
-sa
) * 64.0);
617 if (m_brush
.GetStyle() != wxTRANSPARENT
)
619 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
621 gdk_gc_set_ts_origin( m_textGC
,
622 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
623 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
624 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
625 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
627 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
629 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
630 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
631 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
633 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
635 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
636 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
637 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
639 if (m_brush
.GetStyle() == wxSTIPPLE
)
641 gdk_gc_set_ts_origin( m_brushGC
,
642 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
643 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
644 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
645 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
649 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, start
, end
);
653 if (m_pen
.GetStyle() != wxTRANSPARENT
)
654 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
, hh
, start
, end
);
657 CalcBoundingBox (x
, y
);
658 CalcBoundingBox (x
+ width
, y
+ height
);
661 void wxWindowDC::DoDrawPoint( wxCoord x
, wxCoord y
)
663 wxCHECK_RET( Ok(), wxT("invalid window dc") );
665 if ((m_pen
.GetStyle() != wxTRANSPARENT
) && m_window
)
666 gdk_draw_point( m_window
, m_penGC
, XLOG2DEV(x
), YLOG2DEV(y
) );
668 CalcBoundingBox (x
, y
);
671 void wxWindowDC::DoDrawLines( int n
, wxPoint points
[], wxCoord xoffset
, wxCoord yoffset
)
673 wxCHECK_RET( Ok(), wxT("invalid window dc") );
675 if (m_pen
.GetStyle() == wxTRANSPARENT
) return;
678 //Check, if scaling is necessary
680 xoffset
!= 0 || yoffset
!= 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
682 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
683 GdkPoint
* gpts
= reinterpret_cast<GdkPoint
*>(points
);
686 gpts
= new GdkPoint
[n
];
688 for (int i
= 0; i
< n
; i
++)
692 gpts
[i
].x
= XLOG2DEV(points
[i
].x
+ xoffset
);
693 gpts
[i
].y
= YLOG2DEV(points
[i
].y
+ yoffset
);
695 CalcBoundingBox(points
[i
].x
+ xoffset
, points
[i
].y
+ yoffset
);
699 gdk_draw_lines( m_window
, m_penGC
, gpts
, n
);
705 void wxWindowDC::DoDrawPolygon( int n
, wxPoint points
[], wxCoord xoffset
, wxCoord yoffset
, int WXUNUSED(fillStyle
) )
707 wxCHECK_RET( Ok(), wxT("invalid window dc") );
711 //Check, if scaling is necessary
713 xoffset
!= 0 || yoffset
!= 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
715 // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
716 GdkPoint
* gdkpoints
= reinterpret_cast<GdkPoint
*>(points
);
719 gdkpoints
= new GdkPoint
[n
];
722 for (i
= 0 ; i
< n
; i
++)
726 gdkpoints
[i
].x
= XLOG2DEV(points
[i
].x
+ xoffset
);
727 gdkpoints
[i
].y
= YLOG2DEV(points
[i
].y
+ yoffset
);
729 CalcBoundingBox(points
[i
].x
+ xoffset
, points
[i
].y
+ yoffset
);
734 if (m_brush
.GetStyle() != wxTRANSPARENT
)
736 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
738 gdk_gc_set_ts_origin( m_textGC
,
739 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
740 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
741 gdk_draw_polygon( m_window
, m_textGC
, TRUE
, gdkpoints
, n
);
742 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
744 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
746 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
747 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
748 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
750 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
752 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
753 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
754 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
756 if (m_brush
.GetStyle() == wxSTIPPLE
)
758 gdk_gc_set_ts_origin( m_brushGC
,
759 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
760 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
761 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
762 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
766 gdk_draw_polygon( m_window
, m_brushGC
, TRUE
, gdkpoints
, n
);
770 if (m_pen
.GetStyle() != wxTRANSPARENT
)
773 for (i = 0 ; i < n ; i++)
775 gdk_draw_line( m_window, m_penGC,
778 gdkpoints[(i+1)%n].x,
779 gdkpoints[(i+1)%n].y);
782 gdk_draw_polygon( m_window
, m_penGC
, FALSE
, gdkpoints
, n
);
791 void wxWindowDC::DoDrawRectangle( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
793 wxCHECK_RET( Ok(), wxT("invalid window dc") );
795 wxCoord xx
= XLOG2DEV(x
);
796 wxCoord yy
= YLOG2DEV(y
);
797 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
798 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
800 // CMB: draw nothing if transformed w or h is 0
801 if (ww
== 0 || hh
== 0) return;
803 // CMB: handle -ve width and/or height
804 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
805 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
809 if (m_brush
.GetStyle() != wxTRANSPARENT
)
811 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
813 gdk_gc_set_ts_origin( m_textGC
,
814 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
815 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
816 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
);
817 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
819 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
821 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
822 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
823 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
825 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
827 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
828 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
829 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
831 if (m_brush
.GetStyle() == wxSTIPPLE
)
833 gdk_gc_set_ts_origin( m_brushGC
,
834 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
835 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
836 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
837 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
841 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
);
845 if (m_pen
.GetStyle() != wxTRANSPARENT
)
848 if ((m_pen
.GetWidth() == 2) && (m_pen
.GetCap() == wxCAP_ROUND
) &&
849 (m_pen
.GetJoin() == wxJOIN_ROUND
) && (m_pen
.GetStyle() == wxSOLID
))
851 // Use 2 1-line rects instead
852 gdk_gc_set_line_attributes( m_penGC
, 1, GDK_LINE_SOLID
, GDK_CAP_ROUND
, GDK_JOIN_ROUND
);
857 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
+1, yy
, ww
-2, hh
-2 );
858 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
-1, ww
, hh
);
862 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
-2, hh
-2 );
863 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
-1, yy
-1, ww
, hh
);
867 gdk_gc_set_line_attributes( m_penGC
, 2, GDK_LINE_SOLID
, GDK_CAP_ROUND
, GDK_JOIN_ROUND
);
872 // Just use X11 for other cases
873 gdk_draw_rectangle( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
-1, hh
-1 );
878 CalcBoundingBox( x
, y
);
879 CalcBoundingBox( x
+ width
, y
+ height
);
882 void wxWindowDC::DoDrawRoundedRectangle( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
, double radius
)
884 wxCHECK_RET( Ok(), wxT("invalid window dc") );
886 if (radius
< 0.0) radius
= - radius
* ((width
< height
) ? width
: height
);
888 wxCoord xx
= XLOG2DEV(x
);
889 wxCoord yy
= YLOG2DEV(y
);
890 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
891 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
892 wxCoord rr
= XLOG2DEVREL((wxCoord
)radius
);
894 // CMB: handle -ve width and/or height
895 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
896 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
898 // CMB: if radius is zero use DrawRectangle() instead to avoid
899 // X drawing errors with small radii
902 DrawRectangle( x
, y
, width
, height
);
906 // CMB: draw nothing if transformed w or h is 0
907 if (ww
== 0 || hh
== 0) return;
909 // CMB: adjust size if outline is drawn otherwise the result is
910 // 1 pixel too wide and high
911 if (m_pen
.GetStyle() != wxTRANSPARENT
)
919 // CMB: ensure dd is not larger than rectangle otherwise we
920 // get an hour glass shape
922 if (dd
> ww
) dd
= ww
;
923 if (dd
> hh
) dd
= hh
;
926 if (m_brush
.GetStyle() != wxTRANSPARENT
)
928 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
930 gdk_gc_set_ts_origin( m_textGC
,
931 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
932 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
933 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
934 gdk_draw_rectangle( m_window
, m_textGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
935 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
936 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
937 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
938 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
939 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
941 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
943 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
944 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
945 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
946 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
947 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
948 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
949 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
950 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
952 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
954 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
955 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
956 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
957 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
958 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
959 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
960 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
961 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
963 if (m_brush
.GetStyle() == wxSTIPPLE
)
965 gdk_gc_set_ts_origin( m_brushGC
,
966 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
967 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
968 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
969 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
970 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
971 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
972 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
973 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
974 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
978 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
+rr
, yy
, ww
-dd
+1, hh
);
979 gdk_draw_rectangle( m_window
, m_brushGC
, TRUE
, xx
, yy
+rr
, ww
, hh
-dd
+1 );
980 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
981 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
982 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
983 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
987 if (m_pen
.GetStyle() != wxTRANSPARENT
)
989 gdk_draw_line( m_window
, m_penGC
, xx
+rr
+1, yy
, xx
+ww
-rr
, yy
);
990 gdk_draw_line( m_window
, m_penGC
, xx
+rr
+1, yy
+hh
, xx
+ww
-rr
, yy
+hh
);
991 gdk_draw_line( m_window
, m_penGC
, xx
, yy
+rr
+1, xx
, yy
+hh
-rr
);
992 gdk_draw_line( m_window
, m_penGC
, xx
+ww
, yy
+rr
+1, xx
+ww
, yy
+hh
-rr
);
993 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, dd
, dd
, 90*64, 90*64 );
994 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
+ww
-dd
, yy
, dd
, dd
, 0, 90*64 );
995 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
+ww
-dd
, yy
+hh
-dd
, dd
, dd
, 270*64, 90*64 );
996 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
+hh
-dd
, dd
, dd
, 180*64, 90*64 );
1000 // this ignores the radius
1001 CalcBoundingBox( x
, y
);
1002 CalcBoundingBox( x
+ width
, y
+ height
);
1005 void wxWindowDC::DoDrawEllipse( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
1007 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1009 wxCoord xx
= XLOG2DEV(x
);
1010 wxCoord yy
= YLOG2DEV(y
);
1011 wxCoord ww
= m_signX
* XLOG2DEVREL(width
);
1012 wxCoord hh
= m_signY
* YLOG2DEVREL(height
);
1014 // CMB: handle -ve width and/or height
1015 if (ww
< 0) { ww
= -ww
; xx
= xx
- ww
; }
1016 if (hh
< 0) { hh
= -hh
; yy
= yy
- hh
; }
1020 if (m_brush
.GetStyle() != wxTRANSPARENT
)
1022 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
1024 gdk_gc_set_ts_origin( m_textGC
,
1025 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
1026 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
1027 gdk_draw_arc( m_window
, m_textGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1028 gdk_gc_set_ts_origin( m_textGC
, 0, 0 );
1030 if (IS_15_PIX_HATCH(m_brush
.GetStyle()))
1032 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 15, m_deviceOriginY
% 15 );
1033 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1034 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1036 if (IS_16_PIX_HATCH(m_brush
.GetStyle()))
1038 gdk_gc_set_ts_origin( m_brushGC
, m_deviceOriginX
% 16, m_deviceOriginY
% 16 );
1039 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1040 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1042 if (m_brush
.GetStyle() == wxSTIPPLE
)
1044 gdk_gc_set_ts_origin( m_brushGC
,
1045 m_deviceOriginX
% m_brush
.GetStipple()->GetWidth(),
1046 m_deviceOriginY
% m_brush
.GetStipple()->GetHeight() );
1047 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1048 gdk_gc_set_ts_origin( m_brushGC
, 0, 0 );
1052 gdk_draw_arc( m_window
, m_brushGC
, TRUE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1056 if (m_pen
.GetStyle() != wxTRANSPARENT
)
1057 gdk_draw_arc( m_window
, m_penGC
, FALSE
, xx
, yy
, ww
, hh
, 0, 360*64 );
1060 CalcBoundingBox( x
, y
);
1061 CalcBoundingBox( x
+ width
, y
+ height
);
1064 void wxWindowDC::DoDrawIcon( const wxIcon
&icon
, wxCoord x
, wxCoord y
)
1066 // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
1067 DoDrawBitmap( (const wxBitmap
&)icon
, x
, y
, true );
1070 void wxWindowDC::DoDrawBitmap( const wxBitmap
&bitmap
,
1071 wxCoord x
, wxCoord y
,
1074 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1076 wxCHECK_RET( bitmap
.Ok(), wxT("invalid bitmap") );
1078 bool is_mono
= bitmap
.GetDepth() == 1;
1080 // scale/translate size and position
1081 int xx
= XLOG2DEV(x
);
1082 int yy
= YLOG2DEV(y
);
1084 int w
= bitmap
.GetWidth();
1085 int h
= bitmap
.GetHeight();
1087 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1090 CalcBoundingBox( x
, y
);
1091 CalcBoundingBox( x
+ w
, y
+ h
);
1093 if (!m_window
) return;
1095 int ww
= XLOG2DEVREL(w
);
1096 int hh
= YLOG2DEVREL(h
);
1098 // compare to current clipping region
1099 if (!m_currentClippingRegion
.IsNull())
1101 wxRegion
tmp( xx
,yy
,ww
,hh
);
1102 tmp
.Intersect( m_currentClippingRegion
);
1107 // scale bitmap if required
1108 wxBitmap use_bitmap
= bitmap
;
1109 if ((w
!= ww
) || (h
!= hh
))
1110 use_bitmap
= use_bitmap
.Rescale( 0, 0, ww
, hh
, ww
, hh
);
1112 #if !GTK_CHECK_VERSION(2,2,0)
1113 // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code.
1114 // Pixbufs-based bitmaps with alpha channel don't have a mask, so we
1115 // have to call GetPixmap() here -- it converts the pixbuf into pixmap
1116 // and also creates the mask as a side-effect:
1117 use_bitmap
.GetPixmap();
1120 // apply mask if any
1121 GdkBitmap
*mask
= (GdkBitmap
*) NULL
;
1122 if (useMask
&& use_bitmap
.GetMask())
1123 mask
= use_bitmap
.GetMask()->GetBitmap();
1125 GdkGC
* use_gc
= is_mono
? m_textGC
: m_penGC
;
1127 GdkBitmap
*new_mask
= (GdkBitmap
*) NULL
;
1131 if (!m_currentClippingRegion
.IsNull())
1134 new_mask
= gdk_pixmap_new( wxGetRootWindow()->window
, ww
, hh
, 1 );
1135 GdkGC
*gc
= gdk_gc_new( new_mask
);
1137 gdk_gc_set_foreground( gc
, &col
);
1138 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, ww
, hh
);
1140 gdk_gc_set_background( gc
, &col
);
1142 gdk_gc_set_foreground( gc
, &col
);
1143 gdk_gc_set_clip_region( gc
, m_currentClippingRegion
.GetRegion() );
1144 gdk_gc_set_clip_origin( gc
, -xx
, -yy
);
1145 gdk_gc_set_fill( gc
, GDK_OPAQUE_STIPPLED
);
1146 gdk_gc_set_stipple( gc
, mask
);
1147 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, ww
, hh
);
1149 g_object_unref (gc
);
1152 gdk_gc_set_clip_mask(use_gc
, mask
);
1153 gdk_gc_set_clip_origin(use_gc
, xx
, yy
);
1156 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1157 // drawing a mono-bitmap (XBitmap) we use the current text GC
1160 GdkPixmap
*bitmap2
= gdk_pixmap_new( wxGetRootWindow()->window
, ww
, hh
, -1 );
1161 GdkGC
*gc
= gdk_gc_new( bitmap2
);
1162 gdk_gc_set_foreground( gc
, m_textForegroundColour
.GetColor() );
1163 gdk_gc_set_background( gc
, m_textBackgroundColour
.GetColor() );
1164 gdk_wx_draw_bitmap( bitmap2
, gc
, use_bitmap
.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1166 gdk_draw_drawable(m_window
, use_gc
, bitmap2
, 0, 0, xx
, yy
, -1, -1);
1168 g_object_unref (bitmap2
);
1169 g_object_unref (gc
);
1173 #if GTK_CHECK_VERSION(2,2,0)
1174 if (!gtk_check_version(2,2,0) && use_bitmap
.HasPixbuf())
1176 gdk_draw_pixbuf(m_window
, use_gc
,
1177 use_bitmap
.GetPixbuf(),
1178 0, 0, xx
, yy
, -1, -1,
1179 GDK_RGB_DITHER_NORMAL
, xx
, yy
);
1184 gdk_draw_drawable(m_window
, use_gc
,
1185 use_bitmap
.GetPixmap(),
1186 0, 0, xx
, yy
, -1, -1);
1190 // remove mask again if any
1193 gdk_gc_set_clip_mask(use_gc
, NULL
);
1194 gdk_gc_set_clip_origin(use_gc
, 0, 0);
1195 if (!m_currentClippingRegion
.IsNull())
1196 gdk_gc_set_clip_region(use_gc
, m_currentClippingRegion
.GetRegion());
1197 if (new_mask
!= NULL
)
1198 g_object_unref(new_mask
);
1202 bool wxWindowDC::DoBlit( wxCoord xdest
, wxCoord ydest
,
1203 wxCoord width
, wxCoord height
,
1205 wxCoord xsrc
, wxCoord ysrc
,
1208 wxCoord xsrcMask
, wxCoord ysrcMask
)
1210 wxCHECK_MSG( Ok(), false, wxT("invalid window dc") );
1212 wxCHECK_MSG( source
, false, wxT("invalid source dc") );
1214 if (!m_window
) return false;
1216 // transform the source DC coords to the device ones
1217 xsrc
= source
->LogicalToDeviceX(xsrc
);
1218 ysrc
= source
->LogicalToDeviceY(ysrc
);
1221 wxMemoryDC
*memDC
= wxDynamicCast(source
, wxMemoryDC
);
1224 selected
= memDC
->GetSelectedBitmap();
1225 if ( !selected
.IsOk() )
1229 bool use_bitmap_method
= false;
1230 bool is_mono
= false;
1232 if (xsrcMask
== -1 && ysrcMask
== -1)
1240 is_mono
= (selected
.GetDepth() == 1);
1242 // we use the "XCopyArea" way to copy a memory dc into
1243 // a different window if the memory dc BOTH
1244 // a) doesn't have any mask or its mask isn't used
1248 if (useMask
&& (selected
.GetMask()))
1250 // we HAVE TO use the direct way for memory dcs
1251 // that have mask since the XCopyArea doesn't know
1253 use_bitmap_method
= true;
1257 // we HAVE TO use the direct way for memory dcs
1258 // that are bitmaps because XCopyArea doesn't cope
1259 // with different bit depths
1260 use_bitmap_method
= true;
1262 else if ((xsrc
== 0) && (ysrc
== 0) &&
1263 (width
== selected
.GetWidth()) &&
1264 (height
== selected
.GetHeight()))
1266 // we SHOULD use the direct way if all of the bitmap
1267 // in the memory dc is copied in which case XCopyArea
1268 // wouldn't be able able to boost performace by reducing
1269 // the area to be scaled
1270 use_bitmap_method
= true;
1274 CalcBoundingBox( xdest
, ydest
);
1275 CalcBoundingBox( xdest
+ width
, ydest
+ height
);
1277 // scale/translate size and position
1278 wxCoord xx
= XLOG2DEV(xdest
);
1279 wxCoord yy
= YLOG2DEV(ydest
);
1281 wxCoord ww
= XLOG2DEVREL(width
);
1282 wxCoord hh
= YLOG2DEVREL(height
);
1284 // compare to current clipping region
1285 if (!m_currentClippingRegion
.IsNull())
1287 wxRegion
tmp( xx
,yy
,ww
,hh
);
1288 tmp
.Intersect( m_currentClippingRegion
);
1293 int old_logical_func
= m_logicalFunction
;
1294 SetLogicalFunction( logical_func
);
1296 if (use_bitmap_method
)
1298 // scale/translate bitmap size
1299 wxCoord bm_width
= selected
.GetWidth();
1300 wxCoord bm_height
= selected
.GetHeight();
1302 // Get clip coords for the bitmap. If we don't
1303 // use wxBitmap::Rescale(), which can clip the
1304 // bitmap, these are the same as the original
1311 // interpret userscale of src too
1313 memDC
->GetUserScale(&xsc
,&ysc
);
1314 bm_width
= (int) (bm_width
/ xsc
);
1315 bm_height
= (int) (bm_height
/ ysc
);
1317 wxCoord bm_ww
= XLOG2DEVREL( bm_width
);
1318 wxCoord bm_hh
= YLOG2DEVREL( bm_height
);
1320 // Scale bitmap if required
1321 wxBitmap use_bitmap
= selected
;
1322 if ((selected
.GetWidth()!= bm_ww
) || ( selected
.GetHeight()!= bm_hh
))
1324 // This indicates that the blitting code below will get
1325 // a clipped bitmap and therefore needs to move the origin
1327 wxRegion
tmp( xx
,yy
,ww
,hh
);
1328 if (!m_currentClippingRegion
.IsNull())
1329 tmp
.Intersect( m_currentClippingRegion
);
1330 tmp
.GetBox(cx
,cy
,cw
,ch
);
1332 // Scale and clipped bitmap
1333 use_bitmap
= selected
.Rescale(cx
-xx
,cy
-yy
,cw
,ch
,bm_ww
,bm_hh
);
1336 // apply mask if any
1337 GdkBitmap
*mask
= (GdkBitmap
*) NULL
;
1338 if (useMask
&& use_bitmap
.GetMask())
1339 mask
= use_bitmap
.GetMask()->GetBitmap();
1341 GdkGC
* use_gc
= is_mono
? m_textGC
: m_penGC
;
1343 GdkBitmap
*new_mask
= (GdkBitmap
*) NULL
;
1347 if (!m_currentClippingRegion
.IsNull())
1350 new_mask
= gdk_pixmap_new( wxGetRootWindow()->window
, bm_ww
, bm_hh
, 1 );
1351 GdkGC
*gc
= gdk_gc_new( new_mask
);
1353 gdk_gc_set_foreground( gc
, &col
);
1354 gdk_gc_set_ts_origin( gc
, -xsrcMask
, -ysrcMask
);
1355 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, bm_ww
, bm_hh
);
1357 gdk_gc_set_background( gc
, &col
);
1359 gdk_gc_set_foreground( gc
, &col
);
1360 gdk_gc_set_clip_region( gc
, m_currentClippingRegion
.GetRegion() );
1361 // was: gdk_gc_set_clip_origin( gc, -xx, -yy );
1362 gdk_gc_set_clip_origin( gc
, -cx
, -cy
);
1363 gdk_gc_set_fill( gc
, GDK_OPAQUE_STIPPLED
);
1364 gdk_gc_set_stipple( gc
, mask
);
1365 gdk_draw_rectangle( new_mask
, gc
, TRUE
, 0, 0, bm_ww
, bm_hh
);
1367 g_object_unref (gc
);
1370 gdk_gc_set_clip_mask(use_gc
, mask
);
1371 if (new_mask
!= NULL
)
1372 gdk_gc_set_clip_origin(use_gc
, cx
, cy
);
1374 gdk_gc_set_clip_origin(use_gc
, cx
- xsrcMask
, cy
- ysrcMask
);
1377 // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
1378 // drawing a mono-bitmap (XBitmap) we use the current text GC
1382 GdkPixmap
*bitmap
= gdk_pixmap_new( wxGetRootWindow()->window
, bm_ww
, bm_hh
, -1 );
1383 GdkGC
*gc
= gdk_gc_new( bitmap
);
1384 gdk_gc_set_foreground( gc
, m_textForegroundColour
.GetColor() );
1385 gdk_gc_set_background( gc
, m_textBackgroundColour
.GetColor() );
1386 gdk_wx_draw_bitmap( bitmap
, gc
, use_bitmap
.GetPixmap(), 0, 0, 0, 0, -1, -1 );
1388 gdk_draw_drawable(m_window
, use_gc
, bitmap
, xsrc
, ysrc
, cx
, cy
, cw
, ch
);
1390 g_object_unref (bitmap
);
1391 g_object_unref (gc
);
1395 // was: gdk_draw_drawable( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
1396 gdk_draw_drawable(m_window
, use_gc
, use_bitmap
.GetPixmap(), xsrc
, ysrc
, cx
, cy
, cw
, ch
);
1399 // remove mask again if any
1402 gdk_gc_set_clip_mask(use_gc
, NULL
);
1403 gdk_gc_set_clip_origin(use_gc
, 0, 0);
1404 if (!m_currentClippingRegion
.IsNull())
1405 gdk_gc_set_clip_region(use_gc
, m_currentClippingRegion
.GetRegion());
1409 g_object_unref (new_mask
);
1411 else // use_bitmap_method
1413 if (selected
.Ok() && ((width
!= ww
) || (height
!= hh
)))
1416 wxRegion
tmp( xx
,yy
,ww
,hh
);
1417 tmp
.Intersect( m_currentClippingRegion
);
1418 wxCoord cx
,cy
,cw
,ch
;
1419 tmp
.GetBox(cx
,cy
,cw
,ch
);
1422 wxBitmap bitmap
= selected
.Rescale( cx
-xx
, cy
-yy
, cw
, ch
, ww
, hh
);
1424 // draw scaled bitmap
1425 // was: gdk_draw_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
1426 gdk_draw_drawable( m_window
, m_penGC
, bitmap
.GetPixmap(), 0, 0, cx
, cy
, -1, -1 );
1430 // No scaling and not a memory dc with a mask either
1432 GdkWindow
* window
= source
->GetGDKWindow();
1436 // copy including child window contents
1437 gdk_gc_set_subwindow( m_penGC
, GDK_INCLUDE_INFERIORS
);
1438 gdk_draw_drawable( m_window
, m_penGC
,
1442 gdk_gc_set_subwindow( m_penGC
, GDK_CLIP_BY_CHILDREN
);
1446 SetLogicalFunction( old_logical_func
);
1451 void wxWindowDC::DoDrawText( const wxString
&text
, wxCoord x
, wxCoord y
)
1453 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1455 if (!m_window
) return;
1457 if (text
.empty()) return;
1462 wxCHECK_RET( m_context
, wxT("no Pango context") );
1463 wxCHECK_RET( m_layout
, wxT("no Pango layout") );
1464 wxCHECK_RET( m_fontdesc
, wxT("no Pango font description") );
1466 gdk_pango_context_set_colormap( m_context
, m_cmap
);
1468 bool underlined
= m_font
.Ok() && m_font
.GetUnderlined();
1470 const wxCharBuffer data
= wxGTK_CONV( text
);
1473 size_t datalen
= strlen(data
);
1475 // in Pango >= 1.16 the "underline of leading/trailing spaces" bug
1476 // has been fixed and thus the hack implemented below should never be used
1477 static bool pangoOk
= !wx_pango_version_check(1, 16, 0);
1479 bool needshack
= underlined
&& !pangoOk
;
1480 char *hackstring
= NULL
;
1484 // a PangoLayout which has leading/trailing spaces with underlined font
1485 // is not correctly drawn by this pango version: Pango won't underline the spaces.
1486 // This can be a problem; e.g. wxHTML rendering of underlined text relies on
1487 // this behaviour. To workaround this problem, we use a special hack here
1488 // suggested by pango maintainer Behdad Esfahbod: we prepend and append two
1489 // empty space characters and give them a dummy colour attribute.
1490 // This will force Pango to underline the leading/trailing spaces, too.
1492 // need to realloc the string to prepend & append our special characters
1493 hackstring
= (char*)malloc((datalen
+7)*sizeof(char));
1495 // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1496 strcpy(hackstring
, "\342\200\214");
1498 // copy the user string
1499 memcpy(&hackstring
[3], data
, datalen
);
1501 // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
1502 strcpy(&hackstring
[datalen
+3], "\342\200\214");
1504 // the special characters that we added require 6 additional bytes:
1507 pango_layout_set_text(m_layout
, hackstring
, datalen
);
1511 pango_layout_set_text(m_layout
, data
, datalen
);
1516 PangoAttrList
*attrs
= pango_attr_list_new();
1517 PangoAttribute
*a
= pango_attr_underline_new(PANGO_UNDERLINE_SINGLE
);
1519 a
->end_index
= datalen
;
1520 pango_attr_list_insert(attrs
, a
);
1524 // dummy colour for the leading space
1525 a
= pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1528 pango_attr_list_insert(attrs
, a
);
1530 // dummy colour for the trailing space
1531 a
= pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
1532 a
->start_index
= datalen
- 1;
1533 a
->end_index
= datalen
;
1534 pango_attr_list_insert(attrs
, a
);
1537 pango_layout_set_attributes(m_layout
, attrs
);
1538 pango_attr_list_unref(attrs
);
1543 if (fabs(m_scaleY
- 1.0) > 0.00001)
1545 // If there is a user or actually any scale applied to
1546 // the device context, scale the font.
1548 // scale font description
1549 gint oldSize
= pango_font_description_get_size( m_fontdesc
);
1550 double size
= oldSize
;
1551 size
= size
* m_scaleY
;
1552 pango_font_description_set_size( m_fontdesc
, (gint
)size
);
1554 // actually apply scaled font
1555 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1557 pango_layout_get_pixel_size( m_layout
, &w
, &h
);
1558 if ( m_backgroundMode
== wxSOLID
)
1560 gdk_gc_set_foreground(m_textGC
, m_textBackgroundColour
.GetColor());
1561 gdk_draw_rectangle(m_window
, m_textGC
, TRUE
, x
, y
, w
, h
);
1562 gdk_gc_set_foreground(m_textGC
, m_textForegroundColour
.GetColor());
1566 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1567 gdk_draw_layout( m_window
, m_textGC
, x
-w
, y
, m_layout
);
1569 gdk_draw_layout( m_window
, m_textGC
, x
, y
, m_layout
);
1571 // reset unscaled size
1572 pango_font_description_set_size( m_fontdesc
, oldSize
);
1574 // actually apply unscaled font
1575 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1579 pango_layout_get_pixel_size( m_layout
, &w
, &h
);
1580 if ( m_backgroundMode
== wxSOLID
)
1582 gdk_gc_set_foreground(m_textGC
, m_textBackgroundColour
.GetColor());
1583 gdk_draw_rectangle(m_window
, m_textGC
, TRUE
, x
, y
, w
, h
);
1584 gdk_gc_set_foreground(m_textGC
, m_textForegroundColour
.GetColor());
1588 if (m_owner
&& m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
)
1589 gdk_draw_layout( m_window
, m_textGC
, x
-w
, y
, m_layout
);
1591 gdk_draw_layout( m_window
, m_textGC
, x
, y
, m_layout
);
1596 // undo underline attributes setting:
1597 pango_layout_set_attributes(m_layout
, NULL
);
1603 width
= wxCoord(width
/ m_scaleX
);
1604 height
= wxCoord(height
/ m_scaleY
);
1605 CalcBoundingBox (x
+ width
, y
+ height
);
1606 CalcBoundingBox (x
, y
);
1613 // TODO: There is an example of rotating text with GTK2 that would probably be
1614 // a better approach here:
1615 // http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
1617 void wxWindowDC::DoDrawRotatedText( const wxString
&text
, wxCoord x
, wxCoord y
, double angle
)
1619 if (!m_window
|| text
.empty())
1622 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1624 if ( wxIsNullDouble(angle
) )
1626 DrawText(text
, x
, y
);
1633 // TODO: implement later without GdkFont for GTK 2.0
1634 GetTextExtent(text
, &w
, &h
, NULL
,NULL
, &m_font
);
1636 // draw the string normally
1639 dc
.SelectObject(src
);
1640 dc
.SetFont(GetFont());
1641 dc
.SetBackground(*wxBLACK_BRUSH
);
1642 dc
.SetBrush(*wxBLACK_BRUSH
);
1644 dc
.SetTextForeground( *wxWHITE
);
1645 dc
.DrawText(text
, 0, 0);
1646 dc
.SelectObject(wxNullBitmap
);
1648 // Calculate the size of the rotated bounding box.
1649 double rad
= DegToRad(angle
);
1650 double dx
= cos(rad
),
1653 // the rectngle vertices are counted clockwise with the first one being at
1654 // (0, 0) (or, rather, at (x, y))
1656 y2
= -w
*dy
; // y axis points to the bottom, hence minus
1659 double x3
= x4
+ x2
,
1663 wxCoord maxX
= (wxCoord
)(dmax(x2
, dmax(x3
, x4
)) + 0.5),
1664 maxY
= (wxCoord
)(dmax(y2
, dmax(y3
, y4
)) + 0.5),
1665 minX
= (wxCoord
)(dmin(x2
, dmin(x3
, x4
)) - 0.5),
1666 minY
= (wxCoord
)(dmin(y2
, dmin(y3
, y4
)) - 0.5);
1669 wxImage image
= src
.ConvertToImage();
1671 image
.ConvertColourToAlpha( m_textForegroundColour
.Red(),
1672 m_textForegroundColour
.Green(),
1673 m_textForegroundColour
.Blue() );
1674 image
= image
.Rotate( rad
, wxPoint(0,0) );
1676 int i_angle
= (int) angle
;
1677 i_angle
= i_angle
% 360;
1681 if ((i_angle
>= 90.0) && (i_angle
< 270.0))
1682 xoffset
= image
.GetWidth();
1684 if ((i_angle
>= 0.0) && (i_angle
< 180.0))
1685 yoffset
= image
.GetHeight();
1687 if ((i_angle
>= 0) && (i_angle
< 90))
1688 yoffset
-= (int)( cos(rad
)*h
);
1689 if ((i_angle
>= 90) && (i_angle
< 180))
1690 xoffset
-= (int)( sin(rad
)*h
);
1691 if ((i_angle
>= 180) && (i_angle
< 270))
1692 yoffset
-= (int)( cos(rad
)*h
);
1693 if ((i_angle
>= 270) && (i_angle
< 360))
1694 xoffset
-= (int)( sin(rad
)*h
);
1696 int i_x
= x
- xoffset
;
1697 int i_y
= y
- yoffset
;
1700 DoDrawBitmap( src
, i_x
, i_y
, true );
1703 // it would be better to draw with non underlined font and draw the line
1704 // manually here (it would be more straight...)
1706 if ( m_font
.GetUnderlined() )
1708 gdk_draw_line( m_window
, m_textGC
,
1709 XLOG2DEV(x
+ x4
), YLOG2DEV(y
+ y4
+ font
->descent
),
1710 XLOG2DEV(x
+ x3
), YLOG2DEV(y
+ y3
+ font
->descent
));
1714 // update the bounding box
1715 CalcBoundingBox(x
+ minX
, y
+ minY
);
1716 CalcBoundingBox(x
+ maxX
, y
+ maxY
);
1719 void wxWindowDC::DoGetTextExtent(const wxString
&string
,
1720 wxCoord
*width
, wxCoord
*height
,
1721 wxCoord
*descent
, wxCoord
*externalLeading
,
1722 const wxFont
*theFont
) const
1730 if ( externalLeading
)
1731 *externalLeading
= 0;
1736 // ensure that theFont is always non-NULL
1737 if ( !theFont
|| !theFont
->Ok() )
1738 theFont
= wx_const_cast(wxFont
*, &m_font
);
1740 // and use it if it's valid
1741 if ( theFont
->Ok() )
1743 pango_layout_set_font_description
1746 theFont
->GetNativeFontInfo()->description
1750 // Set layout's text
1751 const wxCharBuffer dataUTF8
= wxGTK_CONV_FONT(string
, *theFont
);
1754 // hardly ideal, but what else can we do if conversion failed?
1758 pango_layout_set_text( m_layout
, dataUTF8
, strlen(dataUTF8
) );
1763 pango_layout_get_pixel_size( m_layout
, width
, &h
);
1764 PangoLayoutIter
*iter
= pango_layout_get_iter(m_layout
);
1765 int baseline
= pango_layout_iter_get_baseline(iter
);
1766 pango_layout_iter_free(iter
);
1767 *descent
= h
- PANGO_PIXELS(baseline
);
1770 *height
= (wxCoord
) h
;
1774 pango_layout_get_pixel_size( m_layout
, width
, height
);
1777 // Reset old font description
1778 if (theFont
->IsOk())
1779 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1783 bool wxWindowDC::DoGetPartialTextExtents(const wxString
& text
,
1784 wxArrayInt
& widths
) const
1786 const size_t len
= text
.length();
1793 // Set layout's text
1794 const wxCharBuffer dataUTF8
= wxGTK_CONV_FONT(text
, m_font
);
1797 // hardly ideal, but what else can we do if conversion failed?
1798 wxLogLastError(wxT("DoGetPartialTextExtents"));
1802 pango_layout_set_text( m_layout
, dataUTF8
, strlen(dataUTF8
) );
1804 // Calculate the position of each character based on the widths of
1805 // the previous characters
1807 // Code borrowed from Scintilla's PlatGTK
1808 PangoLayoutIter
*iter
= pango_layout_get_iter(m_layout
);
1810 pango_layout_iter_get_cluster_extents(iter
, NULL
, &pos
);
1812 while (pango_layout_iter_next_cluster(iter
))
1814 pango_layout_iter_get_cluster_extents(iter
, NULL
, &pos
);
1815 int position
= PANGO_PIXELS(pos
.x
);
1816 widths
[i
++] = position
;
1819 widths
[i
++] = PANGO_PIXELS(pos
.x
+ pos
.width
);
1820 pango_layout_iter_free(iter
);
1826 wxCoord
wxWindowDC::GetCharWidth() const
1828 pango_layout_set_text( m_layout
, "H", 1 );
1830 pango_layout_get_pixel_size( m_layout
, &w
, NULL
);
1834 wxCoord
wxWindowDC::GetCharHeight() const
1836 PangoFontMetrics
*metrics
= pango_context_get_metrics (m_context
, m_fontdesc
, pango_context_get_language(m_context
));
1837 wxCHECK_MSG( metrics
, -1, _T("failed to get pango font metrics") );
1839 wxCoord h
= PANGO_PIXELS (pango_font_metrics_get_descent (metrics
) +
1840 pango_font_metrics_get_ascent (metrics
));
1841 pango_font_metrics_unref (metrics
);
1845 void wxWindowDC::Clear()
1847 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1849 if (!m_window
) return;
1851 // VZ: the code below results in infinite recursion and crashes when
1852 // dc.Clear() is done from OnPaint() so I disable it for now.
1853 // I don't know what the correct fix is but Clear() surely should not
1854 // reenter OnPaint()!
1856 /* - we either are a memory dc or have a window as the
1857 owner. anything else shouldn't happen.
1858 - we don't use gdk_window_clear() as we don't set
1859 the window's background colour anymore. it is too
1860 much pain to keep the DC's and the window's back-
1861 ground colour in synch. */
1872 GetSize( &width
, &height
);
1873 gdk_draw_rectangle( m_window
, m_bgGC
, TRUE
, 0, 0, width
, height
);
1878 GetSize( &width
, &height
);
1879 gdk_draw_rectangle( m_window
, m_bgGC
, TRUE
, 0, 0, width
, height
);
1883 void wxWindowDC::SetFont( const wxFont
&font
)
1890 pango_font_description_free( m_fontdesc
);
1892 m_fontdesc
= pango_font_description_copy( m_font
.GetNativeFontInfo()->description
);
1897 PangoContext
*oldContext
= m_context
;
1899 m_context
= m_owner
->GtkGetPangoDefaultContext();
1901 // If we switch back/forth between different contexts
1902 // we also have to create a new layout. I think so,
1903 // at least, and it doesn't hurt to do it.
1904 if (oldContext
!= m_context
)
1907 g_object_unref (m_layout
);
1909 m_layout
= pango_layout_new( m_context
);
1913 pango_layout_set_font_description( m_layout
, m_fontdesc
);
1917 void wxWindowDC::SetPen( const wxPen
&pen
)
1919 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1921 if (m_pen
== pen
) return;
1925 if (!m_pen
.Ok()) return;
1927 if (!m_window
) return;
1929 gint width
= m_pen
.GetWidth();
1932 // CMB: if width is non-zero scale it with the dc
1937 // X doesn't allow different width in x and y and so we take
1940 ( fabs((double) XLOG2DEVREL(width
)) +
1941 fabs((double) YLOG2DEVREL(width
)) ) / 2.0;
1945 // width can't be 0 or an internal GTK error occurs inside
1946 // gdk_gc_set_dashes() below
1951 static const wxGTKDash dotted
[] = {1, 1};
1952 static const wxGTKDash short_dashed
[] = {2, 2};
1953 static const wxGTKDash wxCoord_dashed
[] = {2, 4};
1954 static const wxGTKDash dotted_dashed
[] = {3, 3, 1, 3};
1956 // We express dash pattern in pen width unit, so we are
1957 // independent of zoom factor and so on...
1959 const wxGTKDash
*req_dash
;
1961 GdkLineStyle lineStyle
= GDK_LINE_SOLID
;
1962 switch (m_pen
.GetStyle())
1966 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1967 req_nb_dash
= m_pen
.GetDashCount();
1968 req_dash
= (wxGTKDash
*)m_pen
.GetDash();
1973 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1980 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1982 req_dash
= wxCoord_dashed
;
1987 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1989 req_dash
= short_dashed
;
1994 // lineStyle = GDK_LINE_DOUBLE_DASH;
1995 lineStyle
= GDK_LINE_ON_OFF_DASH
;
1997 req_dash
= dotted_dashed
;
2002 case wxSTIPPLE_MASK_OPAQUE
:
2007 lineStyle
= GDK_LINE_SOLID
;
2008 req_dash
= (wxGTKDash
*)NULL
;
2014 if (req_dash
&& req_nb_dash
)
2016 wxGTKDash
*real_req_dash
= new wxGTKDash
[req_nb_dash
];
2019 for (int i
= 0; i
< req_nb_dash
; i
++)
2020 real_req_dash
[i
] = req_dash
[i
] * width
;
2021 gdk_gc_set_dashes( m_penGC
, 0, real_req_dash
, req_nb_dash
);
2022 delete[] real_req_dash
;
2026 // No Memory. We use non-scaled dash pattern...
2027 gdk_gc_set_dashes( m_penGC
, 0, (wxGTKDash
*)req_dash
, req_nb_dash
);
2031 GdkCapStyle capStyle
= GDK_CAP_ROUND
;
2032 switch (m_pen
.GetCap())
2034 case wxCAP_PROJECTING
: { capStyle
= GDK_CAP_PROJECTING
; break; }
2035 case wxCAP_BUTT
: { capStyle
= GDK_CAP_BUTT
; break; }
2042 capStyle
= GDK_CAP_NOT_LAST
;
2046 capStyle
= GDK_CAP_ROUND
;
2052 GdkJoinStyle joinStyle
= GDK_JOIN_ROUND
;
2053 switch (m_pen
.GetJoin())
2055 case wxJOIN_BEVEL
: { joinStyle
= GDK_JOIN_BEVEL
; break; }
2056 case wxJOIN_MITER
: { joinStyle
= GDK_JOIN_MITER
; break; }
2058 default: { joinStyle
= GDK_JOIN_ROUND
; break; }
2061 gdk_gc_set_line_attributes( m_penGC
, width
, lineStyle
, capStyle
, joinStyle
);
2063 m_pen
.GetColour().CalcPixel( m_cmap
);
2064 gdk_gc_set_foreground( m_penGC
, m_pen
.GetColour().GetColor() );
2067 void wxWindowDC::SetBrush( const wxBrush
&brush
)
2069 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2071 if (m_brush
== brush
) return;
2075 if (!m_brush
.Ok()) return;
2077 if (!m_window
) return;
2079 m_brush
.GetColour().CalcPixel( m_cmap
);
2080 gdk_gc_set_foreground( m_brushGC
, m_brush
.GetColour().GetColor() );
2082 gdk_gc_set_fill( m_brushGC
, GDK_SOLID
);
2084 if ((m_brush
.GetStyle() == wxSTIPPLE
) && (m_brush
.GetStipple()->Ok()))
2086 if (m_brush
.GetStipple()->GetDepth() != 1)
2088 gdk_gc_set_fill( m_brushGC
, GDK_TILED
);
2089 gdk_gc_set_tile( m_brushGC
, m_brush
.GetStipple()->GetPixmap() );
2093 gdk_gc_set_fill( m_brushGC
, GDK_STIPPLED
);
2094 gdk_gc_set_stipple( m_brushGC
, m_brush
.GetStipple()->GetPixmap() );
2098 if ((m_brush
.GetStyle() == wxSTIPPLE_MASK_OPAQUE
) && (m_brush
.GetStipple()->GetMask()))
2100 gdk_gc_set_fill( m_textGC
, GDK_OPAQUE_STIPPLED
);
2101 gdk_gc_set_stipple( m_textGC
, m_brush
.GetStipple()->GetMask()->GetBitmap() );
2104 if (m_brush
.IsHatch())
2106 gdk_gc_set_fill( m_brushGC
, GDK_STIPPLED
);
2107 int num
= m_brush
.GetStyle() - wxBDIAGONAL_HATCH
;
2108 gdk_gc_set_stipple( m_brushGC
, hatches
[num
] );
2112 void wxWindowDC::SetBackground( const wxBrush
&brush
)
2114 /* CMB 21/7/98: Added SetBackground. Sets background brush
2115 * for Clear() and bg colour for shapes filled with cross-hatch brush */
2117 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2119 if (m_backgroundBrush
== brush
) return;
2121 m_backgroundBrush
= brush
;
2123 if (!m_backgroundBrush
.Ok()) return;
2125 if (!m_window
) return;
2127 m_backgroundBrush
.GetColour().CalcPixel( m_cmap
);
2128 gdk_gc_set_background( m_brushGC
, m_backgroundBrush
.GetColour().GetColor() );
2129 gdk_gc_set_background( m_penGC
, m_backgroundBrush
.GetColour().GetColor() );
2130 gdk_gc_set_background( m_bgGC
, m_backgroundBrush
.GetColour().GetColor() );
2131 gdk_gc_set_foreground( m_bgGC
, m_backgroundBrush
.GetColour().GetColor() );
2133 gdk_gc_set_fill( m_bgGC
, GDK_SOLID
);
2135 if ((m_backgroundBrush
.GetStyle() == wxSTIPPLE
) && (m_backgroundBrush
.GetStipple()->Ok()))
2137 if (m_backgroundBrush
.GetStipple()->GetDepth() != 1)
2139 gdk_gc_set_fill( m_bgGC
, GDK_TILED
);
2140 gdk_gc_set_tile( m_bgGC
, m_backgroundBrush
.GetStipple()->GetPixmap() );
2144 gdk_gc_set_fill( m_bgGC
, GDK_STIPPLED
);
2145 gdk_gc_set_stipple( m_bgGC
, m_backgroundBrush
.GetStipple()->GetPixmap() );
2149 if (m_backgroundBrush
.IsHatch())
2151 gdk_gc_set_fill( m_bgGC
, GDK_STIPPLED
);
2152 int num
= m_backgroundBrush
.GetStyle() - wxBDIAGONAL_HATCH
;
2153 gdk_gc_set_stipple( m_bgGC
, hatches
[num
] );
2157 void wxWindowDC::SetLogicalFunction( int function
)
2159 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2161 if (m_logicalFunction
== function
)
2164 // VZ: shouldn't this be a CHECK?
2171 case wxXOR
: mode
= GDK_XOR
; break;
2172 case wxINVERT
: mode
= GDK_INVERT
; break;
2173 case wxOR_REVERSE
: mode
= GDK_OR_REVERSE
; break;
2174 case wxAND_REVERSE
: mode
= GDK_AND_REVERSE
; break;
2175 case wxCLEAR
: mode
= GDK_CLEAR
; break;
2176 case wxSET
: mode
= GDK_SET
; break;
2177 case wxOR_INVERT
: mode
= GDK_OR_INVERT
; break;
2178 case wxAND
: mode
= GDK_AND
; break;
2179 case wxOR
: mode
= GDK_OR
; break;
2180 case wxEQUIV
: mode
= GDK_EQUIV
; break;
2181 case wxNAND
: mode
= GDK_NAND
; break;
2182 case wxAND_INVERT
: mode
= GDK_AND_INVERT
; break;
2183 case wxCOPY
: mode
= GDK_COPY
; break;
2184 case wxNO_OP
: mode
= GDK_NOOP
; break;
2185 case wxSRC_INVERT
: mode
= GDK_COPY_INVERT
; break;
2187 // unsupported by GTK
2188 case wxNOR
: mode
= GDK_COPY
; break;
2190 wxFAIL_MSG( wxT("unsupported logical function") );
2194 m_logicalFunction
= function
;
2196 gdk_gc_set_function( m_penGC
, mode
);
2197 gdk_gc_set_function( m_brushGC
, mode
);
2199 // to stay compatible with wxMSW, we don't apply ROPs to the text
2200 // operations (i.e. DrawText/DrawRotatedText).
2201 // True, but mono-bitmaps use the m_textGC and they use ROPs as well.
2202 gdk_gc_set_function( m_textGC
, mode
);
2205 void wxWindowDC::SetTextForeground( const wxColour
&col
)
2207 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2209 // don't set m_textForegroundColour to an invalid colour as we'd crash
2210 // later then (we use m_textForegroundColour.GetColor() without checking
2212 if ( !col
.Ok() || (m_textForegroundColour
== col
) )
2215 m_textForegroundColour
= col
;
2219 m_textForegroundColour
.CalcPixel( m_cmap
);
2220 gdk_gc_set_foreground( m_textGC
, m_textForegroundColour
.GetColor() );
2224 void wxWindowDC::SetTextBackground( const wxColour
&col
)
2226 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2229 if ( !col
.Ok() || (m_textBackgroundColour
== col
) )
2232 m_textBackgroundColour
= col
;
2236 m_textBackgroundColour
.CalcPixel( m_cmap
);
2237 gdk_gc_set_background( m_textGC
, m_textBackgroundColour
.GetColor() );
2241 void wxWindowDC::SetBackgroundMode( int mode
)
2243 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2245 m_backgroundMode
= mode
;
2247 if (!m_window
) return;
2249 // CMB 21/7/98: fill style of cross-hatch brushes is affected by
2250 // transparent/solid background mode
2252 if (m_brush
.GetStyle() != wxSOLID
&& m_brush
.GetStyle() != wxTRANSPARENT
)
2254 gdk_gc_set_fill( m_brushGC
,
2255 (m_backgroundMode
== wxTRANSPARENT
) ? GDK_STIPPLED
: GDK_OPAQUE_STIPPLED
);
2259 void wxWindowDC::SetPalette( const wxPalette
& WXUNUSED(palette
) )
2261 wxFAIL_MSG( wxT("wxWindowDC::SetPalette not implemented") );
2264 void wxWindowDC::DoSetClippingRegion( wxCoord x
, wxCoord y
, wxCoord width
, wxCoord height
)
2266 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2268 if (!m_window
) return;
2271 rect
.x
= XLOG2DEV(x
);
2272 rect
.y
= YLOG2DEV(y
);
2273 rect
.width
= XLOG2DEVREL(width
);
2274 rect
.height
= YLOG2DEVREL(height
);
2276 if (m_owner
&& m_owner
->m_wxwindow
&& (m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
))
2278 rect
.x
-= rect
.width
;
2281 if (!m_currentClippingRegion
.IsNull())
2282 m_currentClippingRegion
.Intersect( rect
);
2284 m_currentClippingRegion
.Union( rect
);
2286 #if USE_PAINT_REGION
2287 if (!m_paintClippingRegion
.IsNull())
2288 m_currentClippingRegion
.Intersect( m_paintClippingRegion
);
2291 wxCoord xx
, yy
, ww
, hh
;
2292 m_currentClippingRegion
.GetBox( xx
, yy
, ww
, hh
);
2293 wxDC::DoSetClippingRegion( xx
, yy
, ww
, hh
);
2295 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2296 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2297 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2298 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2301 void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion
®ion
)
2303 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2307 DestroyClippingRegion();
2311 if (!m_window
) return;
2313 if (!m_currentClippingRegion
.IsNull())
2314 m_currentClippingRegion
.Intersect( region
);
2316 m_currentClippingRegion
.Union( region
);
2318 #if USE_PAINT_REGION
2319 if (!m_paintClippingRegion
.IsNull())
2320 m_currentClippingRegion
.Intersect( m_paintClippingRegion
);
2323 wxCoord xx
, yy
, ww
, hh
;
2324 m_currentClippingRegion
.GetBox( xx
, yy
, ww
, hh
);
2325 wxDC::DoSetClippingRegion( xx
, yy
, ww
, hh
);
2327 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2328 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2329 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2330 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2333 void wxWindowDC::DestroyClippingRegion()
2335 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2337 wxDC::DestroyClippingRegion();
2339 m_currentClippingRegion
.Clear();
2341 #if USE_PAINT_REGION
2342 if (!m_paintClippingRegion
.IsEmpty())
2343 m_currentClippingRegion
.Union( m_paintClippingRegion
);
2346 if (!m_window
) return;
2348 if (m_currentClippingRegion
.IsEmpty())
2350 gdk_gc_set_clip_rectangle( m_penGC
, (GdkRectangle
*) NULL
);
2351 gdk_gc_set_clip_rectangle( m_brushGC
, (GdkRectangle
*) NULL
);
2352 gdk_gc_set_clip_rectangle( m_textGC
, (GdkRectangle
*) NULL
);
2353 gdk_gc_set_clip_rectangle( m_bgGC
, (GdkRectangle
*) NULL
);
2357 gdk_gc_set_clip_region( m_penGC
, m_currentClippingRegion
.GetRegion() );
2358 gdk_gc_set_clip_region( m_brushGC
, m_currentClippingRegion
.GetRegion() );
2359 gdk_gc_set_clip_region( m_textGC
, m_currentClippingRegion
.GetRegion() );
2360 gdk_gc_set_clip_region( m_bgGC
, m_currentClippingRegion
.GetRegion() );
2364 void wxWindowDC::Destroy()
2366 if (m_penGC
) wxFreePoolGC( m_penGC
);
2367 m_penGC
= (GdkGC
*) NULL
;
2368 if (m_brushGC
) wxFreePoolGC( m_brushGC
);
2369 m_brushGC
= (GdkGC
*) NULL
;
2370 if (m_textGC
) wxFreePoolGC( m_textGC
);
2371 m_textGC
= (GdkGC
*) NULL
;
2372 if (m_bgGC
) wxFreePoolGC( m_bgGC
);
2373 m_bgGC
= (GdkGC
*) NULL
;
2376 void wxWindowDC::SetDeviceOrigin( wxCoord x
, wxCoord y
)
2378 m_deviceOriginX
= x
;
2379 m_deviceOriginY
= y
;
2381 ComputeScaleAndOrigin();
2384 void wxWindowDC::SetAxisOrientation( bool xLeftRight
, bool yBottomUp
)
2386 m_signX
= (xLeftRight
? 1 : -1);
2387 m_signY
= (yBottomUp
? -1 : 1);
2389 if (m_owner
&& m_owner
->m_wxwindow
&& (m_owner
->GetLayoutDirection() == wxLayout_RightToLeft
))
2392 ComputeScaleAndOrigin();
2395 void wxWindowDC::ComputeScaleAndOrigin()
2397 const wxRealPoint
origScale(m_scaleX
, m_scaleY
);
2399 wxDC::ComputeScaleAndOrigin();
2401 // if scale has changed call SetPen to recalulate the line width
2402 if ( wxRealPoint(m_scaleX
, m_scaleY
) != origScale
&& m_pen
.Ok() )
2404 // this is a bit artificial, but we need to force wxDC to think the pen
2412 // Resolution in pixels per logical inch
2413 wxSize
wxWindowDC::GetPPI() const
2415 return wxSize( (int) (m_mm_to_pix_x
* 25.4 + 0.5), (int) (m_mm_to_pix_y
* 25.4 + 0.5));
2418 int wxWindowDC::GetDepth() const
2420 return gdk_drawable_get_depth(m_window
);
2424 //-----------------------------------------------------------------------------
2426 //-----------------------------------------------------------------------------
2428 IMPLEMENT_DYNAMIC_CLASS(wxPaintDC
, wxClientDC
)
2430 // Limit the paint region to the window size. Sometimes
2431 // the paint region is too big, and this risks X11 errors
2432 static void wxLimitRegionToSize(wxRegion
& region
, const wxSize
& sz
)
2434 wxRect originalRect
= region
.GetBox();
2435 wxRect
rect(originalRect
);
2436 if (rect
.width
+ rect
.x
> sz
.x
)
2437 rect
.width
= sz
.x
- rect
.x
;
2438 if (rect
.height
+ rect
.y
> sz
.y
)
2439 rect
.height
= sz
.y
- rect
.y
;
2440 if (rect
!= originalRect
)
2442 region
= wxRegion(rect
);
2443 wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
2444 originalRect
.x
, originalRect
.y
, originalRect
.width
, originalRect
.height
,
2445 rect
.x
, rect
.y
, rect
.width
, rect
.height
);
2449 wxPaintDC::wxPaintDC( wxWindow
*win
)
2452 #if USE_PAINT_REGION
2453 if (!win
->m_clipPaintRegion
)
2456 wxSize sz
= win
->GetSize();
2457 m_paintClippingRegion
= win
->m_nativeUpdateRegion
;
2458 wxLimitRegionToSize(m_paintClippingRegion
, sz
);
2460 GdkRegion
*region
= m_paintClippingRegion
.GetRegion();
2463 m_currentClippingRegion
.Union( m_paintClippingRegion
);
2464 wxLimitRegionToSize(m_currentClippingRegion
, sz
);
2466 if (sz
.x
<= 0 || sz
.y
<= 0)
2469 gdk_gc_set_clip_region( m_penGC
, region
);
2470 gdk_gc_set_clip_region( m_brushGC
, region
);
2471 gdk_gc_set_clip_region( m_textGC
, region
);
2472 gdk_gc_set_clip_region( m_bgGC
, region
);
2474 #endif // USE_PAINT_REGION
2477 //-----------------------------------------------------------------------------
2479 //-----------------------------------------------------------------------------
2481 IMPLEMENT_DYNAMIC_CLASS(wxClientDC
, wxWindowDC
)
2483 wxClientDC::wxClientDC( wxWindow
*win
)
2486 wxCHECK_RET( win
, _T("NULL window in wxClientDC::wxClientDC") );
2488 #ifdef __WXUNIVERSAL__
2489 wxPoint ptOrigin
= win
->GetClientAreaOrigin();
2490 SetDeviceOrigin(ptOrigin
.x
, ptOrigin
.y
);
2491 wxSize size
= win
->GetClientSize();
2492 SetClippingRegion(wxPoint(0, 0), size
);
2493 #endif // __WXUNIVERSAL__
2496 void wxClientDC::DoGetSize(int *width
, int *height
) const
2498 wxCHECK_RET( m_owner
, _T("GetSize() doesn't work without window") );
2500 m_owner
->GetClientSize( width
, height
);
2503 // ----------------------------------------------------------------------------
2505 // ----------------------------------------------------------------------------
2507 class wxDCModule
: public wxModule
2514 DECLARE_DYNAMIC_CLASS(wxDCModule
)
2517 IMPLEMENT_DYNAMIC_CLASS(wxDCModule
, wxModule
)
2519 bool wxDCModule::OnInit()
2525 void wxDCModule::OnExit()