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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/dc.h
3 // Purpose: wxDC class
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 05/25/99
7 // RCS-ID: $Id$
8 // Copyright: (c) wxWidgets team
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_DC_H_BASE_
13 #define _WX_DC_H_BASE_
14
15 // ----------------------------------------------------------------------------
16 // headers which we must include here
17 // ----------------------------------------------------------------------------
18
19 #include "wx/object.h" // the base class
20
21 #include "wx/intl.h" // for wxLayoutDirection
22 #include "wx/cursor.h" // we have member variables of these classes
23 #include "wx/font.h" // so we can't do without them
24 #include "wx/colour.h"
25 #include "wx/bitmap.h" // for wxNullBitmap
26 #include "wx/brush.h"
27 #include "wx/pen.h"
28 #include "wx/palette.h"
29 #include "wx/dynarray.h"
30 #include "wx/math.h"
31 #include "wx/image.h"
32 #include "wx/region.h"
33 #include "wx/affinematrix2d.h"
34
35 #define wxUSE_NEW_DC 1
36
37 class WXDLLIMPEXP_FWD_CORE wxDC;
38 class WXDLLIMPEXP_FWD_CORE wxClientDC;
39 class WXDLLIMPEXP_FWD_CORE wxPaintDC;
40 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
41 class WXDLLIMPEXP_FWD_CORE wxScreenDC;
42 class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
43 class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
44 class WXDLLIMPEXP_FWD_CORE wxPrintData;
45
46 #if wxUSE_GRAPHICS_CONTEXT
47 class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
48 #endif
49
50 // Logical ops
51 enum wxRasterOperationMode
52 {
53 wxCLEAR, // 0
54 wxXOR, // src XOR dst
55 wxINVERT, // NOT dst
56 wxOR_REVERSE, // src OR (NOT dst)
57 wxAND_REVERSE, // src AND (NOT dst)
58 wxCOPY, // src
59 wxAND, // src AND dst
60 wxAND_INVERT, // (NOT src) AND dst
61 wxNO_OP, // dst
62 wxNOR, // (NOT src) AND (NOT dst)
63 wxEQUIV, // (NOT src) XOR dst
64 wxSRC_INVERT, // (NOT src)
65 wxOR_INVERT, // (NOT src) OR dst
66 wxNAND, // (NOT src) OR (NOT dst)
67 wxOR, // src OR dst
68 wxSET // 1
69 #if WXWIN_COMPATIBILITY_2_8
70 ,wxROP_BLACK = wxCLEAR,
71 wxBLIT_BLACKNESS = wxCLEAR,
72 wxROP_XORPEN = wxXOR,
73 wxBLIT_SRCINVERT = wxXOR,
74 wxROP_NOT = wxINVERT,
75 wxBLIT_DSTINVERT = wxINVERT,
76 wxROP_MERGEPENNOT = wxOR_REVERSE,
77 wxBLIT_00DD0228 = wxOR_REVERSE,
78 wxROP_MASKPENNOT = wxAND_REVERSE,
79 wxBLIT_SRCERASE = wxAND_REVERSE,
80 wxROP_COPYPEN = wxCOPY,
81 wxBLIT_SRCCOPY = wxCOPY,
82 wxROP_MASKPEN = wxAND,
83 wxBLIT_SRCAND = wxAND,
84 wxROP_MASKNOTPEN = wxAND_INVERT,
85 wxBLIT_00220326 = wxAND_INVERT,
86 wxROP_NOP = wxNO_OP,
87 wxBLIT_00AA0029 = wxNO_OP,
88 wxROP_NOTMERGEPEN = wxNOR,
89 wxBLIT_NOTSRCERASE = wxNOR,
90 wxROP_NOTXORPEN = wxEQUIV,
91 wxBLIT_00990066 = wxEQUIV,
92 wxROP_NOTCOPYPEN = wxSRC_INVERT,
93 wxBLIT_NOTSCRCOPY = wxSRC_INVERT,
94 wxROP_MERGENOTPEN = wxOR_INVERT,
95 wxBLIT_MERGEPAINT = wxOR_INVERT,
96 wxROP_NOTMASKPEN = wxNAND,
97 wxBLIT_007700E6 = wxNAND,
98 wxROP_MERGEPEN = wxOR,
99 wxBLIT_SRCPAINT = wxOR,
100 wxROP_WHITE = wxSET,
101 wxBLIT_WHITENESS = wxSET
102 #endif //WXWIN_COMPATIBILITY_2_8
103 };
104
105 // Flood styles
106 enum wxFloodFillStyle
107 {
108 wxFLOOD_SURFACE = 1,
109 wxFLOOD_BORDER
110 };
111
112 // Mapping modes
113 enum wxMappingMode
114 {
115 wxMM_TEXT = 1,
116 wxMM_METRIC,
117 wxMM_LOMETRIC,
118 wxMM_TWIPS,
119 wxMM_POINTS
120 };
121
122 // Description of text characteristics.
123 struct wxFontMetrics
124 {
125 wxFontMetrics()
126 {
127 height =
128 ascent =
129 descent =
130 internalLeading =
131 externalLeading =
132 averageWidth = 0;
133 }
134
135 int height, // Total character height.
136 ascent, // Part of the height above the baseline.
137 descent, // Part of the height below the baseline.
138 internalLeading, // Intra-line spacing.
139 externalLeading, // Inter-line spacing.
140 averageWidth; // Average font width, a.k.a. "x-width".
141 };
142
143 #if WXWIN_COMPATIBILITY_2_8
144
145 //-----------------------------------------------------------------------------
146 // wxDrawObject helper class
147 //-----------------------------------------------------------------------------
148
149 class WXDLLIMPEXP_CORE wxDrawObject
150 {
151 public:
152 wxDEPRECATED_CONSTRUCTOR(wxDrawObject)()
153 : m_isBBoxValid(false)
154 , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
155 { }
156
157 virtual ~wxDrawObject() { }
158
159 virtual void Draw(wxDC&) const { }
160
161 virtual void CalcBoundingBox(wxCoord x, wxCoord y)
162 {
163 if ( m_isBBoxValid )
164 {
165 if ( x < m_minX ) m_minX = x;
166 if ( y < m_minY ) m_minY = y;
167 if ( x > m_maxX ) m_maxX = x;
168 if ( y > m_maxY ) m_maxY = y;
169 }
170 else
171 {
172 m_isBBoxValid = true;
173
174 m_minX = x;
175 m_minY = y;
176 m_maxX = x;
177 m_maxY = y;
178 }
179 }
180
181 void ResetBoundingBox()
182 {
183 m_isBBoxValid = false;
184
185 m_minX = m_maxX = m_minY = m_maxY = 0;
186 }
187
188 // Get the final bounding box of the PostScript or Metafile picture.
189
190 wxCoord MinX() const { return m_minX; }
191 wxCoord MaxX() const { return m_maxX; }
192 wxCoord MinY() const { return m_minY; }
193 wxCoord MaxY() const { return m_maxY; }
194
195 //to define the type of object for derived objects
196 virtual int GetType()=0;
197
198 protected:
199 //for boundingbox calculation
200 bool m_isBBoxValid:1;
201 //for boundingbox calculation
202 wxCoord m_minX, m_minY, m_maxX, m_maxY;
203 };
204
205 #endif // WXWIN_COMPATIBILITY_2_8
206
207
208 //-----------------------------------------------------------------------------
209 // wxDCFactory
210 //-----------------------------------------------------------------------------
211
212 class WXDLLIMPEXP_FWD_CORE wxDCImpl;
213
214 class WXDLLIMPEXP_CORE wxDCFactory
215 {
216 public:
217 wxDCFactory() {}
218 virtual ~wxDCFactory() {}
219
220 virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0;
221 virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 0;
222 virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window ) = 0;
223 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner ) = 0;
224 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap ) = 0;
225 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc ) = 0;
226 virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner ) = 0;
227 #if wxUSE_PRINTING_ARCHITECTURE
228 virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data ) = 0;
229 #endif
230
231 static void Set(wxDCFactory *factory);
232 static wxDCFactory *Get();
233
234 private:
235 static wxDCFactory *m_factory;
236 };
237
238 //-----------------------------------------------------------------------------
239 // wxNativeDCFactory
240 //-----------------------------------------------------------------------------
241
242 class WXDLLIMPEXP_CORE wxNativeDCFactory: public wxDCFactory
243 {
244 public:
245 wxNativeDCFactory() {}
246
247 virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window );
248 virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window );
249 virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window );
250 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner );
251 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap );
252 virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc );
253 virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner );
254 #if wxUSE_PRINTING_ARCHITECTURE
255 virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data );
256 #endif
257 };
258
259 //-----------------------------------------------------------------------------
260 // wxDCImpl
261 //-----------------------------------------------------------------------------
262
263 class WXDLLIMPEXP_CORE wxDCImpl: public wxObject
264 {
265 public:
266 wxDCImpl( wxDC *owner );
267 virtual ~wxDCImpl();
268
269 wxDC *GetOwner() const { return m_owner; }
270
271 wxWindow* GetWindow() const { return m_window; }
272
273 virtual bool IsOk() const { return m_ok; }
274
275 // query capabilities
276
277 virtual bool CanDrawBitmap() const = 0;
278 virtual bool CanGetTextExtent() const = 0;
279
280 // get Cairo context
281 virtual void* GetCairoContext() const
282 {
283 return NULL;
284 }
285
286 virtual void* GetHandle() const { return NULL; }
287
288 // query dimension, colour deps, resolution
289
290 virtual void DoGetSize(int *width, int *height) const = 0;
291 void GetSize(int *width, int *height) const
292 {
293 DoGetSize(width, height);
294 return ;
295 }
296
297 wxSize GetSize() const
298 {
299 int w, h;
300 DoGetSize(&w, &h);
301 return wxSize(w, h);
302 }
303
304 virtual void DoGetSizeMM(int* width, int* height) const = 0;
305
306 virtual int GetDepth() const = 0;
307 virtual wxSize GetPPI() const = 0;
308
309 // Right-To-Left (RTL) modes
310
311 virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir)) { }
312 virtual wxLayoutDirection GetLayoutDirection() const { return wxLayout_Default; }
313
314 // page and document
315
316 virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }
317 virtual void EndDoc() { }
318
319 virtual void StartPage() { }
320 virtual void EndPage() { }
321
322 // flushing the content of this dc immediately eg onto screen
323 virtual void Flush() { }
324
325 // bounding box
326
327 virtual void CalcBoundingBox(wxCoord x, wxCoord y)
328 {
329 if ( m_isBBoxValid )
330 {
331 if ( x < m_minX ) m_minX = x;
332 if ( y < m_minY ) m_minY = y;
333 if ( x > m_maxX ) m_maxX = x;
334 if ( y > m_maxY ) m_maxY = y;
335 }
336 else
337 {
338 m_isBBoxValid = true;
339
340 m_minX = x;
341 m_minY = y;
342 m_maxX = x;
343 m_maxY = y;
344 }
345 }
346 void ResetBoundingBox()
347 {
348 m_isBBoxValid = false;
349
350 m_minX = m_maxX = m_minY = m_maxY = 0;
351 }
352
353 wxCoord MinX() const { return m_minX; }
354 wxCoord MaxX() const { return m_maxX; }
355 wxCoord MinY() const { return m_minY; }
356 wxCoord MaxY() const { return m_maxY; }
357
358 // setters and getters
359
360 virtual void SetFont(const wxFont& font) = 0;
361 virtual const wxFont& GetFont() const { return m_font; }
362
363 virtual void SetPen(const wxPen& pen) = 0;
364 virtual const wxPen& GetPen() const { return m_pen; }
365
366 virtual void SetBrush(const wxBrush& brush) = 0;
367 virtual const wxBrush& GetBrush() const { return m_brush; }
368
369 virtual void SetBackground(const wxBrush& brush) = 0;
370 virtual const wxBrush& GetBackground() const { return m_backgroundBrush; }
371
372 virtual void SetBackgroundMode(int mode) = 0;
373 virtual int GetBackgroundMode() const { return m_backgroundMode; }
374
375 virtual void SetTextForeground(const wxColour& colour)
376 { m_textForegroundColour = colour; }
377 virtual const wxColour& GetTextForeground() const
378 { return m_textForegroundColour; }
379
380 virtual void SetTextBackground(const wxColour& colour)
381 { m_textBackgroundColour = colour; }
382 virtual const wxColour& GetTextBackground() const
383 { return m_textBackgroundColour; }
384
385 #if wxUSE_PALETTE
386 virtual void SetPalette(const wxPalette& palette) = 0;
387 #endif // wxUSE_PALETTE
388
389 // inherit the DC attributes (font and colours) from the given window
390 //
391 // this is called automatically when a window, client or paint DC is
392 // created
393 virtual void InheritAttributes(wxWindow *win);
394
395
396 // logical functions
397
398 virtual void SetLogicalFunction(wxRasterOperationMode function) = 0;
399 virtual wxRasterOperationMode GetLogicalFunction() const
400 { return m_logicalFunction; }
401
402 // text measurement
403
404 virtual wxCoord GetCharHeight() const = 0;
405 virtual wxCoord GetCharWidth() const = 0;
406
407 // The derived classes should really override DoGetFontMetrics() to return
408 // the correct values in the future but for now provide a default
409 // implementation in terms of DoGetTextExtent() to avoid breaking the
410 // compilation of all other ports as wxMSW is the only one to implement it.
411 virtual void DoGetFontMetrics(int *height,
412 int *ascent,
413 int *descent,
414 int *internalLeading,
415 int *externalLeading,
416 int *averageWidth) const;
417
418 virtual void DoGetTextExtent(const wxString& string,
419 wxCoord *x, wxCoord *y,
420 wxCoord *descent = NULL,
421 wxCoord *externalLeading = NULL,
422 const wxFont *theFont = NULL) const = 0;
423 virtual void GetMultiLineTextExtent(const wxString& string,
424 wxCoord *width,
425 wxCoord *height,
426 wxCoord *heightLine = NULL,
427 const wxFont *font = NULL) const;
428 virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
429
430 // clearing
431
432 virtual void Clear() = 0;
433
434 // clipping
435
436 // Note that this pure virtual method has an implementation that updates
437 // the values returned by DoGetClippingBox() and so can be called from the
438 // derived class overridden version if it makes sense (i.e. if the clipping
439 // box coordinates are not already updated in some other way).
440 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
441 wxCoord w, wxCoord h) = 0;
442
443 // NB: this function works with device coordinates, not the logical ones!
444 virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;
445
446 virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
447 wxCoord *w, wxCoord *h) const
448 {
449 if ( x )
450 *x = m_clipX1;
451 if ( y )
452 *y = m_clipY1;
453 if ( w )
454 *w = m_clipX2 - m_clipX1;
455 if ( h )
456 *h = m_clipY2 - m_clipY1;
457 }
458
459 virtual void DestroyClippingRegion() { ResetClipping(); }
460
461
462 // coordinates conversions and transforms
463
464 virtual wxCoord DeviceToLogicalX(wxCoord x) const;
465 virtual wxCoord DeviceToLogicalY(wxCoord y) const;
466 virtual wxCoord DeviceToLogicalXRel(wxCoord x) const;
467 virtual wxCoord DeviceToLogicalYRel(wxCoord y) const;
468 virtual wxCoord LogicalToDeviceX(wxCoord x) const;
469 virtual wxCoord LogicalToDeviceY(wxCoord y) const;
470 virtual wxCoord LogicalToDeviceXRel(wxCoord x) const;
471 virtual wxCoord LogicalToDeviceYRel(wxCoord y) const;
472
473 virtual void SetMapMode(wxMappingMode mode);
474 virtual wxMappingMode GetMapMode() const { return m_mappingMode; }
475
476 virtual void SetUserScale(double x, double y);
477 virtual void GetUserScale(double *x, double *y) const
478 {
479 if ( x ) *x = m_userScaleX;
480 if ( y ) *y = m_userScaleY;
481 }
482
483 virtual void SetLogicalScale(double x, double y);
484 virtual void GetLogicalScale(double *x, double *y) const
485 {
486 if ( x ) *x = m_logicalScaleX;
487 if ( y ) *y = m_logicalScaleY;
488 }
489
490 virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
491 virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
492 {
493 if ( x ) *x = m_logicalOriginX;
494 if ( y ) *y = m_logicalOriginY;
495 }
496
497 virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
498 virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const
499 {
500 if ( x ) *x = m_deviceOriginX;
501 if ( y ) *y = m_deviceOriginY;
502 }
503
504 #if wxUSE_DC_TRANSFORM_MATRIX
505 // Transform matrix support is not available in most ports right now
506 // (currently only wxMSW provides it) so do nothing in these methods by
507 // default.
508 virtual bool CanUseTransformMatrix() const
509 { return false; }
510 virtual bool SetTransformMatrix(const wxAffineMatrix2D& WXUNUSED(matrix))
511 { return false; }
512 virtual wxAffineMatrix2D GetTransformMatrix() const
513 { return wxAffineMatrix2D(); }
514 virtual void ResetTransformMatrix()
515 { }
516 #endif // wxUSE_DC_TRANSFORM_MATRIX
517
518 virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
519
520 virtual void ComputeScaleAndOrigin();
521
522 // this needs to overidden if the axis is inverted
523 virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
524
525 #ifdef __WXMSW__
526 // Native Windows functions using the underlying HDC don't honour GDI+
527 // transformations which may be applied to it. Using this function we can
528 // transform the coordinates manually before passing them to such functions
529 // (as in e.g. wxRendererMSW code). It doesn't do anything if this is not a
530 // wxGCDC.
531 virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const
532 {
533 return r;
534 }
535 #endif // __WXMSW__
536
537
538 // ---------------------------------------------------------
539 // the actual drawing API
540
541 virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
542 wxFloodFillStyle style = wxFLOOD_SURFACE) = 0;
543
544 virtual void DoGradientFillLinear(const wxRect& rect,
545 const wxColour& initialColour,
546 const wxColour& destColour,
547 wxDirection nDirection = wxEAST);
548
549 virtual void DoGradientFillConcentric(const wxRect& rect,
550 const wxColour& initialColour,
551 const wxColour& destColour,
552 const wxPoint& circleCenter);
553
554 virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
555
556 virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
557 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0;
558
559 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
560 wxCoord x2, wxCoord y2,
561 wxCoord xc, wxCoord yc) = 0;
562 virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
563 wxCoord width, wxCoord height);
564 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
565 double sa, double ea) = 0;
566
567 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0;
568 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
569 wxCoord width, wxCoord height,
570 double radius) = 0;
571 virtual void DoDrawEllipse(wxCoord x, wxCoord y,
572 wxCoord width, wxCoord height) = 0;
573
574 virtual void DoCrossHair(wxCoord x, wxCoord y) = 0;
575
576 virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
577 virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
578 bool useMask = false) = 0;
579
580 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
581 virtual void DoDrawRotatedText(const wxString& text,
582 wxCoord x, wxCoord y, double angle) = 0;
583
584 virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
585 wxCoord width, wxCoord height,
586 wxDC *source,
587 wxCoord xsrc, wxCoord ysrc,
588 wxRasterOperationMode rop = wxCOPY,
589 bool useMask = false,
590 wxCoord xsrcMask = wxDefaultCoord,
591 wxCoord ysrcMask = wxDefaultCoord) = 0;
592
593 virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
594 wxCoord dstWidth, wxCoord dstHeight,
595 wxDC *source,
596 wxCoord xsrc, wxCoord ysrc,
597 wxCoord srcWidth, wxCoord srcHeight,
598 wxRasterOperationMode rop = wxCOPY,
599 bool useMask = false,
600 wxCoord xsrcMask = wxDefaultCoord,
601 wxCoord ysrcMask = wxDefaultCoord);
602
603 virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const
604 { return wxNullBitmap; }
605
606
607 virtual void DoDrawLines(int n, wxPoint points[],
608 wxCoord xoffset, wxCoord yoffset ) = 0;
609 virtual void DrawLines(const wxPointList *list,
610 wxCoord xoffset, wxCoord yoffset );
611
612 virtual void DoDrawPolygon(int n, wxPoint points[],
613 wxCoord xoffset, wxCoord yoffset,
614 wxPolygonFillMode fillStyle = wxODDEVEN_RULE) = 0;
615 virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
616 wxCoord xoffset, wxCoord yoffset,
617 wxPolygonFillMode fillStyle);
618 void DrawPolygon(const wxPointList *list,
619 wxCoord xoffset, wxCoord yoffset,
620 wxPolygonFillMode fillStyle );
621
622
623 #if wxUSE_SPLINES
624 void DrawSpline(wxCoord x1, wxCoord y1,
625 wxCoord x2, wxCoord y2,
626 wxCoord x3, wxCoord y3);
627 void DrawSpline(int n, wxPoint points[]);
628 void DrawSpline(const wxPointList *points) { DoDrawSpline(points); }
629
630 virtual void DoDrawSpline(const wxPointList *points);
631 #endif
632
633 // ---------------------------------------------------------
634 // wxMemoryDC Impl API
635
636 virtual void DoSelect(const wxBitmap& WXUNUSED(bmp))
637 { }
638
639 virtual const wxBitmap& GetSelectedBitmap() const
640 { return wxNullBitmap; }
641 virtual wxBitmap& GetSelectedBitmap()
642 { return wxNullBitmap; }
643
644 // ---------------------------------------------------------
645 // wxPrinterDC Impl API
646
647 virtual wxRect GetPaperRect() const
648 { int w = 0; int h = 0; DoGetSize( &w, &h ); return wxRect(0,0,w,h); }
649
650 virtual int GetResolution() const
651 { return -1; }
652
653 #if wxUSE_GRAPHICS_CONTEXT
654 virtual wxGraphicsContext* GetGraphicsContext() const
655 { return NULL; }
656 virtual void SetGraphicsContext( wxGraphicsContext* WXUNUSED(ctx) )
657 {}
658 #endif
659
660 private:
661 wxDC *m_owner;
662
663 protected:
664 // unset clipping variables (after clipping region was destroyed)
665 void ResetClipping()
666 {
667 m_clipping = false;
668
669 m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
670 }
671
672 #ifdef __WXWINCE__
673 //! Generic method to draw ellipses, circles and arcs with current pen and brush.
674 /*! \param x Upper left corner of bounding box.
675 * \param y Upper left corner of bounding box.
676 * \param w Width of bounding box.
677 * \param h Height of bounding box.
678 * \param sa Starting angle of arc
679 * (counterclockwise, start at 3 o'clock, 360 is full circle).
680 * \param ea Ending angle of arc.
681 * \param angle Rotation angle, the Arc will be rotated after
682 * calculating begin and end.
683 */
684 void DrawEllipticArcRot( wxCoord x, wxCoord y,
685 wxCoord width, wxCoord height,
686 double sa = 0, double ea = 0, double angle = 0 )
687 { DoDrawEllipticArcRot( x, y, width, height, sa, ea, angle ); }
688
689 void DrawEllipticArcRot( const wxPoint& pt,
690 const wxSize& sz,
691 double sa = 0, double ea = 0, double angle = 0 )
692 { DoDrawEllipticArcRot( pt.x, pt.y, sz.x, sz.y, sa, ea, angle ); }
693
694 void DrawEllipticArcRot( const wxRect& rect,
695 double sa = 0, double ea = 0, double angle = 0 )
696 { DoDrawEllipticArcRot( rect.x, rect.y, rect.width, rect.height, sa, ea, angle ); }
697
698 virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y,
699 wxCoord w, wxCoord h,
700 double sa = 0, double ea = 0, double angle = 0 );
701
702 //! Rotates points around center.
703 /*! This is a quite straight method, it calculates in pixels
704 * and so it produces rounding errors.
705 * \param points The points inside will be rotated.
706 * \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
707 * \param center Center of rotation.
708 */
709 void Rotate( wxPointList* points, double angle, wxPoint center = wxPoint(0,0) );
710
711 // used by DrawEllipticArcRot
712 // Careful: wxList gets filled with points you have to delete later.
713 void CalculateEllipticPoints( wxPointList* points,
714 wxCoord xStart, wxCoord yStart,
715 wxCoord w, wxCoord h,
716 double sa, double ea );
717 #endif // __WXWINCE__
718
719 // returns adjustment factor for converting wxFont "point size"; in wx
720 // it is point size on screen and needs to be multiplied by this value
721 // for rendering on higher-resolution DCs such as printer ones
722 static float GetFontPointSizeAdjustment(float dpi);
723
724 // window on which the DC draws or NULL
725 wxWindow *m_window;
726
727 // flags
728 bool m_colour:1;
729 bool m_ok:1;
730 bool m_clipping:1;
731 bool m_isInteractive:1;
732 bool m_isBBoxValid:1;
733
734 // coordinate system variables
735
736 wxCoord m_logicalOriginX, m_logicalOriginY;
737 wxCoord m_deviceOriginX, m_deviceOriginY; // Usually 0,0, can be change by user
738
739 wxCoord m_deviceLocalOriginX, m_deviceLocalOriginY; // non-zero if native top-left corner
740 // is not at 0,0. This was the case under
741 // Mac's GrafPorts (coordinate system
742 // used toplevel window's origin) and
743 // e.g. for Postscript, where the native
744 // origin in the bottom left corner.
745 double m_logicalScaleX, m_logicalScaleY;
746 double m_userScaleX, m_userScaleY;
747 double m_scaleX, m_scaleY; // calculated from logical scale and user scale
748
749 int m_signX, m_signY; // Used by SetAxisOrientation() to invert the axes
750
751 // what is a mm on a screen you don't know the size of?
752 double m_mm_to_pix_x,
753 m_mm_to_pix_y;
754
755 // bounding and clipping boxes
756 wxCoord m_minX, m_minY, m_maxX, m_maxY;
757 wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2;
758
759 wxRasterOperationMode m_logicalFunction;
760 int m_backgroundMode;
761 wxMappingMode m_mappingMode;
762
763 wxPen m_pen;
764 wxBrush m_brush;
765 wxBrush m_backgroundBrush;
766 wxColour m_textForegroundColour;
767 wxColour m_textBackgroundColour;
768 wxFont m_font;
769
770 #if wxUSE_PALETTE
771 wxPalette m_palette;
772 bool m_hasCustomPalette;
773 #endif // wxUSE_PALETTE
774
775 private:
776 DECLARE_ABSTRACT_CLASS(wxDCImpl)
777 };
778
779
780 class WXDLLIMPEXP_CORE wxDC : public wxObject
781 {
782 public:
783 // copy attributes (font, colours and writing direction) from another DC
784 void CopyAttributes(const wxDC& dc);
785
786 virtual ~wxDC() { delete m_pimpl; }
787
788 wxDCImpl *GetImpl()
789 { return m_pimpl; }
790 const wxDCImpl *GetImpl() const
791 { return m_pimpl; }
792
793 wxWindow *GetWindow() const
794 { return m_pimpl->GetWindow(); }
795
796 void *GetHandle() const
797 { return m_pimpl->GetHandle(); }
798
799 bool IsOk() const
800 { return m_pimpl && m_pimpl->IsOk(); }
801
802 // query capabilities
803
804 bool CanDrawBitmap() const
805 { return m_pimpl->CanDrawBitmap(); }
806 bool CanGetTextExtent() const
807 { return m_pimpl->CanGetTextExtent(); }
808
809 // query dimension, colour deps, resolution
810
811 void GetSize(int *width, int *height) const
812 { m_pimpl->DoGetSize(width, height); }
813 wxSize GetSize() const
814 { return m_pimpl->GetSize(); }
815
816 void GetSizeMM(int* width, int* height) const
817 { m_pimpl->DoGetSizeMM(width, height); }
818 wxSize GetSizeMM() const
819 {
820 int w, h;
821 m_pimpl->DoGetSizeMM(&w, &h);
822 return wxSize(w, h);
823 }
824
825 int GetDepth() const
826 { return m_pimpl->GetDepth(); }
827 wxSize GetPPI() const
828 { return m_pimpl->GetPPI(); }
829
830 virtual int GetResolution() const
831 { return m_pimpl->GetResolution(); }
832
833 // Right-To-Left (RTL) modes
834
835 void SetLayoutDirection(wxLayoutDirection dir)
836 { m_pimpl->SetLayoutDirection( dir ); }
837 wxLayoutDirection GetLayoutDirection() const
838 { return m_pimpl->GetLayoutDirection(); }
839
840 // page and document
841
842 bool StartDoc(const wxString& message)
843 { return m_pimpl->StartDoc(message); }
844 void EndDoc()
845 { m_pimpl->EndDoc(); }
846
847 void StartPage()
848 { m_pimpl->StartPage(); }
849 void EndPage()
850 { m_pimpl->EndPage(); }
851
852 // bounding box
853
854 void CalcBoundingBox(wxCoord x, wxCoord y)
855 { m_pimpl->CalcBoundingBox(x,y); }
856 void ResetBoundingBox()
857 { m_pimpl->ResetBoundingBox(); }
858
859 wxCoord MinX() const
860 { return m_pimpl->MinX(); }
861 wxCoord MaxX() const
862 { return m_pimpl->MaxX(); }
863 wxCoord MinY() const
864 { return m_pimpl->MinY(); }
865 wxCoord MaxY() const
866 { return m_pimpl->MaxY(); }
867
868 // setters and getters
869
870 void SetFont(const wxFont& font)
871 { m_pimpl->SetFont( font ); }
872 const wxFont& GetFont() const
873 { return m_pimpl->GetFont(); }
874
875 void SetPen(const wxPen& pen)
876 { m_pimpl->SetPen( pen ); }
877 const wxPen& GetPen() const
878 { return m_pimpl->GetPen(); }
879
880 void SetBrush(const wxBrush& brush)
881 { m_pimpl->SetBrush( brush ); }
882 const wxBrush& GetBrush() const
883 { return m_pimpl->GetBrush(); }
884
885 void SetBackground(const wxBrush& brush)
886 { m_pimpl->SetBackground( brush ); }
887 const wxBrush& GetBackground() const
888 { return m_pimpl->GetBackground(); }
889
890 void SetBackgroundMode(int mode)
891 { m_pimpl->SetBackgroundMode( mode ); }
892 int GetBackgroundMode() const
893 { return m_pimpl->GetBackgroundMode(); }
894
895 void SetTextForeground(const wxColour& colour)
896 { m_pimpl->SetTextForeground(colour); }
897 const wxColour& GetTextForeground() const
898 { return m_pimpl->GetTextForeground(); }
899
900 void SetTextBackground(const wxColour& colour)
901 { m_pimpl->SetTextBackground(colour); }
902 const wxColour& GetTextBackground() const
903 { return m_pimpl->GetTextBackground(); }
904
905 #if wxUSE_PALETTE
906 void SetPalette(const wxPalette& palette)
907 { m_pimpl->SetPalette(palette); }
908 #endif // wxUSE_PALETTE
909
910 // logical functions
911
912 void SetLogicalFunction(wxRasterOperationMode function)
913 { m_pimpl->SetLogicalFunction(function); }
914 wxRasterOperationMode GetLogicalFunction() const
915 { return m_pimpl->GetLogicalFunction(); }
916
917 // text measurement
918
919 wxCoord GetCharHeight() const
920 { return m_pimpl->GetCharHeight(); }
921 wxCoord GetCharWidth() const
922 { return m_pimpl->GetCharWidth(); }
923
924 wxFontMetrics GetFontMetrics() const
925 {
926 wxFontMetrics fm;
927 m_pimpl->DoGetFontMetrics(&fm.height, &fm.ascent, &fm.descent,
928 &fm.internalLeading, &fm.externalLeading,
929 &fm.averageWidth);
930 return fm;
931 }
932
933 void GetTextExtent(const wxString& string,
934 wxCoord *x, wxCoord *y,
935 wxCoord *descent = NULL,
936 wxCoord *externalLeading = NULL,
937 const wxFont *theFont = NULL) const
938 { m_pimpl->DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
939
940 wxSize GetTextExtent(const wxString& string) const
941 {
942 wxCoord w, h;
943 m_pimpl->DoGetTextExtent(string, &w, &h);
944 return wxSize(w, h);
945 }
946
947 void GetMultiLineTextExtent(const wxString& string,
948 wxCoord *width,
949 wxCoord *height,
950 wxCoord *heightLine = NULL,
951 const wxFont *font = NULL) const
952 { m_pimpl->GetMultiLineTextExtent( string, width, height, heightLine, font ); }
953
954 wxSize GetMultiLineTextExtent(const wxString& string) const
955 {
956 wxCoord w, h;
957 m_pimpl->GetMultiLineTextExtent(string, &w, &h);
958 return wxSize(w, h);
959 }
960
961 bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
962 { return m_pimpl->DoGetPartialTextExtents(text, widths); }
963
964 // clearing
965
966 void Clear()
967 { m_pimpl->Clear(); }
968
969 // clipping
970
971 void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
972 { m_pimpl->DoSetClippingRegion(x, y, width, height); }
973 void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
974 { m_pimpl->DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
975 void SetClippingRegion(const wxRect& rect)
976 { m_pimpl->DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
977
978 // unlike the functions above, the coordinates of the region used in this
979 // one are in device coordinates, not the logical ones
980 void SetDeviceClippingRegion(const wxRegion& region)
981 { m_pimpl->DoSetDeviceClippingRegion(region); }
982
983 // this function is deprecated because its name is confusing: you may
984 // expect it to work with logical coordinates but, in fact, it does exactly
985 // the same thing as SetDeviceClippingRegion()
986 //
987 // please review the code using it and either replace it with calls to
988 // SetDeviceClippingRegion() or correct it if it was [wrongly] passing
989 // logical coordinates to this function
990 wxDEPRECATED_INLINE(void SetClippingRegion(const wxRegion& region),
991 SetDeviceClippingRegion(region); )
992
993 void DestroyClippingRegion()
994 { m_pimpl->DestroyClippingRegion(); }
995
996 void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
997 { m_pimpl->DoGetClippingBox(x, y, w, h); }
998 void GetClippingBox(wxRect& rect) const
999 { m_pimpl->DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
1000
1001 // coordinates conversions and transforms
1002
1003 wxCoord DeviceToLogicalX(wxCoord x) const
1004 { return m_pimpl->DeviceToLogicalX(x); }
1005 wxCoord DeviceToLogicalY(wxCoord y) const
1006 { return m_pimpl->DeviceToLogicalY(y); }
1007 wxCoord DeviceToLogicalXRel(wxCoord x) const
1008 { return m_pimpl->DeviceToLogicalXRel(x); }
1009 wxCoord DeviceToLogicalYRel(wxCoord y) const
1010 { return m_pimpl->DeviceToLogicalYRel(y); }
1011 wxCoord LogicalToDeviceX(wxCoord x) const
1012 { return m_pimpl->LogicalToDeviceX(x); }
1013 wxCoord LogicalToDeviceY(wxCoord y) const
1014 { return m_pimpl->LogicalToDeviceY(y); }
1015 wxCoord LogicalToDeviceXRel(wxCoord x) const
1016 { return m_pimpl->LogicalToDeviceXRel(x); }
1017 wxCoord LogicalToDeviceYRel(wxCoord y) const
1018 { return m_pimpl->LogicalToDeviceYRel(y); }
1019
1020 void SetMapMode(wxMappingMode mode)
1021 { m_pimpl->SetMapMode(mode); }
1022 wxMappingMode GetMapMode() const
1023 { return m_pimpl->GetMapMode(); }
1024
1025 void SetUserScale(double x, double y)
1026 { m_pimpl->SetUserScale(x,y); }
1027 void GetUserScale(double *x, double *y) const
1028 { m_pimpl->GetUserScale( x, y ); }
1029
1030 void SetLogicalScale(double x, double y)
1031 { m_pimpl->SetLogicalScale( x, y ); }
1032 void GetLogicalScale(double *x, double *y) const
1033 { m_pimpl->GetLogicalScale( x, y ); }
1034
1035 void SetLogicalOrigin(wxCoord x, wxCoord y)
1036 { m_pimpl->SetLogicalOrigin(x,y); }
1037 void GetLogicalOrigin(wxCoord *x, wxCoord *y) const
1038 { m_pimpl->DoGetLogicalOrigin(x, y); }
1039 wxPoint GetLogicalOrigin() const
1040 { wxCoord x, y; m_pimpl->DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); }
1041
1042 void SetDeviceOrigin(wxCoord x, wxCoord y)
1043 { m_pimpl->SetDeviceOrigin( x, y); }
1044 void GetDeviceOrigin(wxCoord *x, wxCoord *y) const
1045 { m_pimpl->DoGetDeviceOrigin(x, y); }
1046 wxPoint GetDeviceOrigin() const
1047 { wxCoord x, y; m_pimpl->DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
1048
1049 void SetAxisOrientation(bool xLeftRight, bool yBottomUp)
1050 { m_pimpl->SetAxisOrientation(xLeftRight, yBottomUp); }
1051
1052 #if wxUSE_DC_TRANSFORM_MATRIX
1053 bool CanUseTransformMatrix() const
1054 { return m_pimpl->CanUseTransformMatrix(); }
1055
1056 bool SetTransformMatrix(const wxAffineMatrix2D &matrix)
1057 { return m_pimpl->SetTransformMatrix(matrix); }
1058
1059 wxAffineMatrix2D GetTransformMatrix() const
1060 { return m_pimpl->GetTransformMatrix(); }
1061
1062 void ResetTransformMatrix()
1063 { m_pimpl->ResetTransformMatrix(); }
1064 #endif // wxUSE_DC_TRANSFORM_MATRIX
1065
1066 // mostly internal
1067 void SetDeviceLocalOrigin( wxCoord x, wxCoord y )
1068 { m_pimpl->SetDeviceLocalOrigin( x, y ); }
1069
1070
1071 // -----------------------------------------------
1072 // the actual drawing API
1073
1074 bool FloodFill(wxCoord x, wxCoord y, const wxColour& col,
1075 wxFloodFillStyle style = wxFLOOD_SURFACE)
1076 { return m_pimpl->DoFloodFill(x, y, col, style); }
1077 bool FloodFill(const wxPoint& pt, const wxColour& col,
1078 wxFloodFillStyle style = wxFLOOD_SURFACE)
1079 { return m_pimpl->DoFloodFill(pt.x, pt.y, col, style); }
1080
1081 // fill the area specified by rect with a radial gradient, starting from
1082 // initialColour in the centre of the cercle and fading to destColour.
1083 void GradientFillConcentric(const wxRect& rect,
1084 const wxColour& initialColour,
1085 const wxColour& destColour)
1086 { m_pimpl->DoGradientFillConcentric( rect, initialColour, destColour,
1087 wxPoint(rect.GetWidth() / 2,
1088 rect.GetHeight() / 2)); }
1089
1090 void GradientFillConcentric(const wxRect& rect,
1091 const wxColour& initialColour,
1092 const wxColour& destColour,
1093 const wxPoint& circleCenter)
1094 { m_pimpl->DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); }
1095
1096 // fill the area specified by rect with a linear gradient
1097 void GradientFillLinear(const wxRect& rect,
1098 const wxColour& initialColour,
1099 const wxColour& destColour,
1100 wxDirection nDirection = wxEAST)
1101 { m_pimpl->DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
1102
1103 bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
1104 { return m_pimpl->DoGetPixel(x, y, col); }
1105 bool GetPixel(const wxPoint& pt, wxColour *col) const
1106 { return m_pimpl->DoGetPixel(pt.x, pt.y, col); }
1107
1108 void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
1109 { m_pimpl->DoDrawLine(x1, y1, x2, y2); }
1110 void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
1111 { m_pimpl->DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
1112
1113 void CrossHair(wxCoord x, wxCoord y)
1114 { m_pimpl->DoCrossHair(x, y); }
1115 void CrossHair(const wxPoint& pt)
1116 { m_pimpl->DoCrossHair(pt.x, pt.y); }
1117
1118 void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
1119 wxCoord xc, wxCoord yc)
1120 { m_pimpl->DoDrawArc(x1, y1, x2, y2, xc, yc); }
1121 void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
1122 { m_pimpl->DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
1123
1124 void DrawCheckMark(wxCoord x, wxCoord y,
1125 wxCoord width, wxCoord height)
1126 { m_pimpl->DoDrawCheckMark(x, y, width, height); }
1127 void DrawCheckMark(const wxRect& rect)
1128 { m_pimpl->DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
1129
1130 void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1131 double sa, double ea)
1132 { m_pimpl->DoDrawEllipticArc(x, y, w, h, sa, ea); }
1133 void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
1134 double sa, double ea)
1135 { m_pimpl->DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
1136
1137 void DrawPoint(wxCoord x, wxCoord y)
1138 { m_pimpl->DoDrawPoint(x, y); }
1139 void DrawPoint(const wxPoint& pt)
1140 { m_pimpl->DoDrawPoint(pt.x, pt.y); }
1141
1142 void DrawLines(int n, wxPoint points[],
1143 wxCoord xoffset = 0, wxCoord yoffset = 0)
1144 { m_pimpl->DoDrawLines(n, points, xoffset, yoffset); }
1145 void DrawLines(const wxPointList *list,
1146 wxCoord xoffset = 0, wxCoord yoffset = 0)
1147 { m_pimpl->DrawLines( list, xoffset, yoffset ); }
1148 #if WXWIN_COMPATIBILITY_2_8
1149 wxDEPRECATED( void DrawLines(const wxList *list,
1150 wxCoord xoffset = 0, wxCoord yoffset = 0) );
1151 #endif // WXWIN_COMPATIBILITY_2_8
1152
1153 void DrawPolygon(int n, wxPoint points[],
1154 wxCoord xoffset = 0, wxCoord yoffset = 0,
1155 wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
1156 { m_pimpl->DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
1157 void DrawPolygon(const wxPointList *list,
1158 wxCoord xoffset = 0, wxCoord yoffset = 0,
1159 wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
1160 { m_pimpl->DrawPolygon( list, xoffset, yoffset, fillStyle ); }
1161 void DrawPolyPolygon(int n, int count[], wxPoint points[],
1162 wxCoord xoffset = 0, wxCoord yoffset = 0,
1163 wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
1164 { m_pimpl->DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); }
1165 #if WXWIN_COMPATIBILITY_2_8
1166 wxDEPRECATED( void DrawPolygon(const wxList *list,
1167 wxCoord xoffset = 0, wxCoord yoffset = 0,
1168 wxPolygonFillMode fillStyle = wxODDEVEN_RULE) );
1169 #endif // WXWIN_COMPATIBILITY_2_8
1170
1171 void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1172 { m_pimpl->DoDrawRectangle(x, y, width, height); }
1173 void DrawRectangle(const wxPoint& pt, const wxSize& sz)
1174 { m_pimpl->DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
1175 void DrawRectangle(const wxRect& rect)
1176 { m_pimpl->DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
1177
1178 void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
1179 double radius)
1180 { m_pimpl->DoDrawRoundedRectangle(x, y, width, height, radius); }
1181 void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
1182 double radius)
1183 { m_pimpl->DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
1184 void DrawRoundedRectangle(const wxRect& r, double radius)
1185 { m_pimpl->DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
1186
1187 void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
1188 { m_pimpl->DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
1189 void DrawCircle(const wxPoint& pt, wxCoord radius)
1190 { m_pimpl->DoDrawEllipse(pt.x - radius, pt.y - radius, 2*radius, 2*radius); }
1191
1192 void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1193 { m_pimpl->DoDrawEllipse(x, y, width, height); }
1194 void DrawEllipse(const wxPoint& pt, const wxSize& sz)
1195 { m_pimpl->DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
1196 void DrawEllipse(const wxRect& rect)
1197 { m_pimpl->DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
1198
1199 void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
1200 { m_pimpl->DoDrawIcon(icon, x, y); }
1201 void DrawIcon(const wxIcon& icon, const wxPoint& pt)
1202 { m_pimpl->DoDrawIcon(icon, pt.x, pt.y); }
1203
1204 void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
1205 bool useMask = false)
1206 { m_pimpl->DoDrawBitmap(bmp, x, y, useMask); }
1207 void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
1208 bool useMask = false)
1209 { m_pimpl->DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
1210
1211 void DrawText(const wxString& text, wxCoord x, wxCoord y)
1212 { m_pimpl->DoDrawText(text, x, y); }
1213 void DrawText(const wxString& text, const wxPoint& pt)
1214 { m_pimpl->DoDrawText(text, pt.x, pt.y); }
1215
1216 void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
1217 { m_pimpl->DoDrawRotatedText(text, x, y, angle); }
1218 void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
1219 { m_pimpl->DoDrawRotatedText(text, pt.x, pt.y, angle); }
1220
1221 // this version puts both optional bitmap and the text into the given
1222 // rectangle and aligns is as specified by alignment parameter; it also
1223 // will emphasize the character with the given index if it is != -1 and
1224 // return the bounding rectangle if required
1225 void DrawLabel(const wxString& text,
1226 const wxBitmap& image,
1227 const wxRect& rect,
1228 int alignment = wxALIGN_LEFT | wxALIGN_TOP,
1229 int indexAccel = -1,
1230 wxRect *rectBounding = NULL);
1231
1232 void DrawLabel(const wxString& text, const wxRect& rect,
1233 int alignment = wxALIGN_LEFT | wxALIGN_TOP,
1234 int indexAccel = -1)
1235 { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
1236
1237 bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
1238 wxDC *source, wxCoord xsrc, wxCoord ysrc,
1239 wxRasterOperationMode rop = wxCOPY, bool useMask = false,
1240 wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)
1241 {
1242 return m_pimpl->DoBlit(xdest, ydest, width, height,
1243 source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
1244 }
1245 bool Blit(const wxPoint& destPt, const wxSize& sz,
1246 wxDC *source, const wxPoint& srcPt,
1247 wxRasterOperationMode rop = wxCOPY, bool useMask = false,
1248 const wxPoint& srcPtMask = wxDefaultPosition)
1249 {
1250 return m_pimpl->DoBlit(destPt.x, destPt.y, sz.x, sz.y,
1251 source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
1252 }
1253
1254 bool StretchBlit(wxCoord dstX, wxCoord dstY,
1255 wxCoord dstWidth, wxCoord dstHeight,
1256 wxDC *source,
1257 wxCoord srcX, wxCoord srcY,
1258 wxCoord srcWidth, wxCoord srcHeight,
1259 wxRasterOperationMode rop = wxCOPY, bool useMask = false,
1260 wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
1261 {
1262 return m_pimpl->DoStretchBlit(dstX, dstY, dstWidth, dstHeight,
1263 source, srcX, srcY, srcWidth, srcHeight, rop, useMask, srcMaskX, srcMaskY);
1264 }
1265 bool StretchBlit(const wxPoint& dstPt, const wxSize& dstSize,
1266 wxDC *source, const wxPoint& srcPt, const wxSize& srcSize,
1267 wxRasterOperationMode rop = wxCOPY, bool useMask = false,
1268 const wxPoint& srcMaskPt = wxDefaultPosition)
1269 {
1270 return m_pimpl->DoStretchBlit(dstPt.x, dstPt.y, dstSize.x, dstSize.y,
1271 source, srcPt.x, srcPt.y, srcSize.x, srcSize.y, rop, useMask, srcMaskPt.x, srcMaskPt.y);
1272 }
1273
1274 wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const
1275 {
1276 return m_pimpl->DoGetAsBitmap(subrect);
1277 }
1278
1279 #if wxUSE_SPLINES
1280 void DrawSpline(wxCoord x1, wxCoord y1,
1281 wxCoord x2, wxCoord y2,
1282 wxCoord x3, wxCoord y3)
1283 { m_pimpl->DrawSpline(x1,y1,x2,y2,x3,y3); }
1284 void DrawSpline(int n, wxPoint points[])
1285 { m_pimpl->DrawSpline(n,points); }
1286 void DrawSpline(const wxPointList *points)
1287 { m_pimpl->DrawSpline(points); }
1288 #endif // wxUSE_SPLINES
1289
1290
1291 #if WXWIN_COMPATIBILITY_2_8
1292 // for compatibility with the old code when wxCoord was long everywhere
1293 wxDEPRECATED( void GetTextExtent(const wxString& string,
1294 long *x, long *y,
1295 long *descent = NULL,
1296 long *externalLeading = NULL,
1297 const wxFont *theFont = NULL) const );
1298 wxDEPRECATED( void GetLogicalOrigin(long *x, long *y) const );
1299 wxDEPRECATED( void GetDeviceOrigin(long *x, long *y) const );
1300 wxDEPRECATED( void GetClippingBox(long *x, long *y, long *w, long *h) const );
1301
1302 wxDEPRECATED( void DrawObject(wxDrawObject* drawobject) );
1303 #endif // WXWIN_COMPATIBILITY_2_8
1304
1305 #ifdef __WXMSW__
1306 // GetHDC() is the simplest way to retrieve an HDC From a wxDC but only
1307 // works if this wxDC is GDI-based and fails for GDI+ contexts (and
1308 // anything else without HDC, e.g. wxPostScriptDC)
1309 WXHDC GetHDC() const;
1310
1311 // don't use these methods manually, use GetTempHDC() instead
1312 virtual WXHDC AcquireHDC() { return GetHDC(); }
1313 virtual void ReleaseHDC(WXHDC WXUNUSED(hdc)) { }
1314
1315 // helper class holding the result of GetTempHDC() with std::auto_ptr<>-like
1316 // semantics, i.e. it is moved when copied
1317 class TempHDC
1318 {
1319 public:
1320 TempHDC(wxDC& dc)
1321 : m_dc(dc),
1322 m_hdc(dc.AcquireHDC())
1323 {
1324 }
1325
1326 TempHDC(const TempHDC& thdc)
1327 : m_dc(thdc.m_dc),
1328 m_hdc(thdc.m_hdc)
1329 {
1330 const_cast<TempHDC&>(thdc).m_hdc = 0;
1331 }
1332
1333 ~TempHDC()
1334 {
1335 if ( m_hdc )
1336 m_dc.ReleaseHDC(m_hdc);
1337 }
1338
1339 WXHDC GetHDC() const { return m_hdc; }
1340
1341 private:
1342 wxDC& m_dc;
1343 WXHDC m_hdc;
1344
1345 wxDECLARE_NO_ASSIGN_CLASS(TempHDC);
1346 };
1347
1348 // GetTempHDC() also works for wxGCDC (but still not for wxPostScriptDC &c)
1349 TempHDC GetTempHDC() { return TempHDC(*this); }
1350 #endif // __WXMSW__
1351
1352 #if wxUSE_GRAPHICS_CONTEXT
1353 virtual wxGraphicsContext* GetGraphicsContext() const
1354 {
1355 return m_pimpl->GetGraphicsContext();
1356 }
1357 virtual void SetGraphicsContext( wxGraphicsContext* ctx )
1358 {
1359 m_pimpl->SetGraphicsContext(ctx);
1360 }
1361 #endif
1362
1363 protected:
1364 // ctor takes ownership of the pointer
1365 wxDC(wxDCImpl *pimpl) : m_pimpl(pimpl) { }
1366
1367 wxDCImpl * const m_pimpl;
1368
1369 private:
1370 DECLARE_ABSTRACT_CLASS(wxDC)
1371 wxDECLARE_NO_COPY_CLASS(wxDC);
1372 };
1373
1374 // ----------------------------------------------------------------------------
1375 // helper class: you can use it to temporarily change the DC text colour and
1376 // restore it automatically when the object goes out of scope
1377 // ----------------------------------------------------------------------------
1378
1379 class WXDLLIMPEXP_CORE wxDCTextColourChanger
1380 {
1381 public:
1382 wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
1383
1384 wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc)
1385 {
1386 Set(col);
1387 }
1388
1389 ~wxDCTextColourChanger()
1390 {
1391 if ( m_colFgOld.IsOk() )
1392 m_dc.SetTextForeground(m_colFgOld);
1393 }
1394
1395 void Set(const wxColour& col)
1396 {
1397 if ( !m_colFgOld.IsOk() )
1398 m_colFgOld = m_dc.GetTextForeground();
1399 m_dc.SetTextForeground(col);
1400 }
1401
1402 private:
1403 wxDC& m_dc;
1404
1405 wxColour m_colFgOld;
1406
1407 wxDECLARE_NO_COPY_CLASS(wxDCTextColourChanger);
1408 };
1409
1410 // ----------------------------------------------------------------------------
1411 // helper class: you can use it to temporarily change the DC pen and
1412 // restore it automatically when the object goes out of scope
1413 // ----------------------------------------------------------------------------
1414
1415 class WXDLLIMPEXP_CORE wxDCPenChanger
1416 {
1417 public:
1418 wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
1419 {
1420 m_dc.SetPen(pen);
1421 }
1422
1423 ~wxDCPenChanger()
1424 {
1425 if ( m_penOld.IsOk() )
1426 m_dc.SetPen(m_penOld);
1427 }
1428
1429 private:
1430 wxDC& m_dc;
1431
1432 wxPen m_penOld;
1433
1434 wxDECLARE_NO_COPY_CLASS(wxDCPenChanger);
1435 };
1436
1437 // ----------------------------------------------------------------------------
1438 // helper class: you can use it to temporarily change the DC brush and
1439 // restore it automatically when the object goes out of scope
1440 // ----------------------------------------------------------------------------
1441
1442 class WXDLLIMPEXP_CORE wxDCBrushChanger
1443 {
1444 public:
1445 wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
1446 {
1447 m_dc.SetBrush(brush);
1448 }
1449
1450 ~wxDCBrushChanger()
1451 {
1452 if ( m_brushOld.IsOk() )
1453 m_dc.SetBrush(m_brushOld);
1454 }
1455
1456 private:
1457 wxDC& m_dc;
1458
1459 wxBrush m_brushOld;
1460
1461 wxDECLARE_NO_COPY_CLASS(wxDCBrushChanger);
1462 };
1463
1464 // ----------------------------------------------------------------------------
1465 // another small helper class: sets the clipping region in its ctor and
1466 // destroys it in the dtor
1467 // ----------------------------------------------------------------------------
1468
1469 class WXDLLIMPEXP_CORE wxDCClipper
1470 {
1471 public:
1472 wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc)
1473 { dc.SetClippingRegion(r.GetBox()); }
1474 wxDCClipper(wxDC& dc, const wxRect& r) : m_dc(dc)
1475 { dc.SetClippingRegion(r.x, r.y, r.width, r.height); }
1476 wxDCClipper(wxDC& dc, wxCoord x, wxCoord y, wxCoord w, wxCoord h) : m_dc(dc)
1477 { dc.SetClippingRegion(x, y, w, h); }
1478
1479 ~wxDCClipper() { m_dc.DestroyClippingRegion(); }
1480
1481 private:
1482 wxDC& m_dc;
1483
1484 wxDECLARE_NO_COPY_CLASS(wxDCClipper);
1485 };
1486
1487 // ----------------------------------------------------------------------------
1488 // helper class: you can use it to temporarily change the DC font and
1489 // restore it automatically when the object goes out of scope
1490 // ----------------------------------------------------------------------------
1491
1492 class WXDLLIMPEXP_CORE wxDCFontChanger
1493 {
1494 public:
1495 wxDCFontChanger(wxDC& dc)
1496 : m_dc(dc), m_fontOld()
1497 {
1498 }
1499
1500 wxDCFontChanger(wxDC& dc, const wxFont& font)
1501 : m_dc(dc), m_fontOld(dc.GetFont())
1502 {
1503 m_dc.SetFont(font);
1504 }
1505
1506 void Set(const wxFont& font)
1507 {
1508 if ( !m_fontOld.IsOk() )
1509 m_fontOld = m_dc.GetFont();
1510 m_dc.SetFont(font);
1511 }
1512
1513 ~wxDCFontChanger()
1514 {
1515 if ( m_fontOld.IsOk() )
1516 m_dc.SetFont(m_fontOld);
1517 }
1518
1519 private:
1520 wxDC& m_dc;
1521
1522 wxFont m_fontOld;
1523
1524 wxDECLARE_NO_COPY_CLASS(wxDCFontChanger);
1525 };
1526
1527
1528 #endif // _WX_DC_H_BASE_