include/wx/dc.h

   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
  33   // 1 if using the reorganized DC code
  34 #define wxUSE_NEW_DC 0
  35
  36
  37 #if wxUSE_NEW_DC
  38 class WXDLLIMPEXP_FWD_CORE wxDC;
  39 class WXDLLIMPEXP_FWD_CORE wxClientDC;
  40 class WXDLLIMPEXP_FWD_CORE wxPaintDC;
  41 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
  42 class WXDLLIMPEXP_FWD_CORE wxScreenDC;
  43 class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
  44 class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
  45 #include "wx/cmndata.h"
  46 #else
  47 class WXDLLIMPEXP_FWD_CORE wxDCBase;
  48 #endif
  49
  50 class WXDLLEXPORT wxDrawObject
  51 {
  52 public:
  53
  54     wxDrawObject()
  55         : m_isBBoxValid(false)
  56         , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
  57     { }
  58
  59     virtual ~wxDrawObject() { }
  60
  61 #if wxUSE_NEW_DC
  62     virtual void Draw(wxDC&) const { }
  63 #else
  64     virtual void Draw(wxDCBase&) const { }
  65 #endif
  66
  67     virtual void CalcBoundingBox(wxCoord x, wxCoord y)
  68     {
  69       if ( m_isBBoxValid )
  70       {
  71          if ( x < m_minX ) m_minX = x;
  72          if ( y < m_minY ) m_minY = y;
  73          if ( x > m_maxX ) m_maxX = x;
  74          if ( y > m_maxY ) m_maxY = y;
  75       }
  76       else
  77       {
  78          m_isBBoxValid = true;
  79
  80          m_minX = x;
  81          m_minY = y;
  82          m_maxX = x;
  83          m_maxY = y;
  84       }
  85     }
  86
  87     void ResetBoundingBox()
  88     {
  89         m_isBBoxValid = false;
  90
  91         m_minX = m_maxX = m_minY = m_maxY = 0;
  92     }
  93
  94     // Get the final bounding box of the PostScript or Metafile picture.
  95
  96     wxCoord MinX() const { return m_minX; }
  97     wxCoord MaxX() const { return m_maxX; }
  98     wxCoord MinY() const { return m_minY; }
  99     wxCoord MaxY() const { return m_maxY; }
 100
 101     //to define the type of object for derived objects
 102     virtual int GetType()=0;
 103
 104 protected:
 105     //for boundingbox calculation
 106     bool m_isBBoxValid:1;
 107     //for boundingbox calculation
 108     wxCoord m_minX, m_minY, m_maxX, m_maxY;
 109 };
 110
 111
 112 #if wxUSE_NEW_DC
 113
 114 //-----------------------------------------------------------------------------
 115 // wxDCFactory
 116 //-----------------------------------------------------------------------------
 117
 118 class WXDLLIMPEXP_FWD_CORE wxImplDC;
 119
 120 class WXDLLIMPEXP_CORE wxDCFactory
 121 {
 122 public:
 123     wxDCFactory() {}
 124     virtual ~wxDCFactory() {}
 125
 126     virtual wxImplDC* CreateWindowDC( wxWindowDC *owner ) = 0;
 127     virtual wxImplDC* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0;
 128     virtual wxImplDC* CreateClientDC( wxClientDC *owner ) = 0;
 129     virtual wxImplDC* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 0;
 130     virtual wxImplDC* CreatePaintDC( wxPaintDC *owner ) = 0;
 131     virtual wxImplDC* CreatePaintDC( wxPaintDC *owner, wxWindow *window ) = 0;
 132     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner ) = 0;
 133     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap ) = 0;
 134     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc ) = 0;
 135     virtual wxImplDC* CreateScreenDC( wxScreenDC *owner ) = 0;
 136     virtual wxImplDC* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data  ) = 0;
 137
 138     static void SetDCFactory( wxDCFactory *factory );
 139     static wxDCFactory *GetFactory();
 140 private:
 141     static wxDCFactory *m_factory;
 142 };
 143
 144 //-----------------------------------------------------------------------------
 145 // wxNativeDCFactory
 146 //-----------------------------------------------------------------------------
 147
 148 class WXDLLIMPEXP_CORE wxNativeDCFactory: public wxDCFactory
 149 {
 150 public:
 151     wxNativeDCFactory() {}
 152
 153     virtual wxImplDC* CreateWindowDC( wxWindowDC *owner );
 154     virtual wxImplDC* CreateWindowDC( wxWindowDC *owner, wxWindow *window );
 155     virtual wxImplDC* CreateClientDC( wxClientDC *owner );
 156     virtual wxImplDC* CreateClientDC( wxClientDC *owner, wxWindow *window );
 157     virtual wxImplDC* CreatePaintDC( wxPaintDC *owner );
 158     virtual wxImplDC* CreatePaintDC( wxPaintDC *owner, wxWindow *window );
 159     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner );
 160     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap );
 161     virtual wxImplDC* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc );
 162     virtual wxImplDC* CreateScreenDC( wxScreenDC *owner );
 163     virtual wxImplDC* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data  );
 164 };
 165
 166 //-----------------------------------------------------------------------------
 167 // wxImplDC
 168 //-----------------------------------------------------------------------------
 169
 170 class WXDLLIMPEXP_CORE wxImplDC: public wxObject
 171 {
 172 public:
 173     wxImplDC( wxDC *owner );
 174     ~wxImplDC();
 175
 176     wxDC *GetOwner() const { return m_owner; }
 177
 178     virtual bool IsOk() const { return m_ok; }
 179
 180     // query capabilities
 181
 182     virtual bool CanDrawBitmap() const = 0;
 183     virtual bool CanGetTextExtent() const = 0;
 184
 185     // query dimension, colour deps, resolution
 186
 187     virtual void DoGetSize(int *width, int *height) const = 0;
 188     virtual void DoGetSizeMM(int* width, int* height) const = 0;
 189
 190     virtual int GetDepth() const = 0;
 191     virtual wxSize GetPPI() const = 0;
 192
 193     // Right-To-Left (RTL) modes
 194
 195     virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir)) { }
 196     virtual wxLayoutDirection GetLayoutDirection() const  { return wxLayout_Default; }
 197
 198     // page and document
 199
 200     virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }
 201     virtual void EndDoc() { }
 202
 203     virtual void StartPage() { }
 204     virtual void EndPage() { }
 205
 206     // flushing the content of this dc immediately eg onto screen
 207     virtual void Flush() { }
 208
 209     // bounding box
 210
 211     virtual void CalcBoundingBox(wxCoord x, wxCoord y)
 212     {
 213       if ( m_isBBoxValid )
 214       {
 215          if ( x < m_minX ) m_minX = x;
 216          if ( y < m_minY ) m_minY = y;
 217          if ( x > m_maxX ) m_maxX = x;
 218          if ( y > m_maxY ) m_maxY = y;
 219       }
 220       else
 221       {
 222          m_isBBoxValid = true;
 223
 224          m_minX = x;
 225          m_minY = y;
 226          m_maxX = x;
 227          m_maxY = y;
 228       }
 229     }
 230     void ResetBoundingBox()
 231     {
 232         m_isBBoxValid = false;
 233
 234         m_minX = m_maxX = m_minY = m_maxY = 0;
 235     }
 236
 237     wxCoord MinX() const { return m_minX; }
 238     wxCoord MaxX() const { return m_maxX; }
 239     wxCoord MinY() const { return m_minY; }
 240     wxCoord MaxY() const { return m_maxY; }
 241
 242     // setters and getters
 243
 244     virtual void SetFont(const wxFont& font) = 0;
 245     virtual const wxFont&   GetFont() const { return m_font; }
 246
 247     virtual void SetPen(const wxPen& pen) = 0;
 248     virtual const wxPen&    GetPen() const { return m_pen; }
 249
 250     virtual void SetBrush(const wxBrush& brush) = 0;
 251     virtual const wxBrush&  GetBrush() const { return m_brush; }
 252
 253     virtual void SetBackground(const wxBrush& brush) = 0;
 254     virtual const wxBrush&  GetBackground() const { return m_backgroundBrush; }
 255
 256     virtual void SetBackgroundMode(int mode) = 0;
 257     virtual int GetBackgroundMode() const { return m_backgroundMode; }
 258
 259     virtual void SetTextForeground(const wxColour& colour)
 260         { m_textForegroundColour = colour; }
 261     virtual const wxColour& GetTextForeground() const { return m_textForegroundColour; }
 262
 263     virtual void SetTextBackground(const wxColour& colour)
 264         { m_textBackgroundColour = colour; }
 265     virtual const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
 266
 267 #if wxUSE_PALETTE
 268     virtual void SetPalette(const wxPalette& palette) = 0;
 269 #endif // wxUSE_PALETTE
 270
 271     // logical functions
 272
 273     virtual void SetLogicalFunction(int function) = 0;
 274     virtual int GetLogicalFunction() const { return m_logicalFunction; }
 275
 276     // text measurement
 277
 278     virtual wxCoord GetCharHeight() const = 0;
 279     virtual wxCoord GetCharWidth() const = 0;
 280     virtual void DoGetTextExtent(const wxString& string,
 281                                  wxCoord *x, wxCoord *y,
 282                                  wxCoord *descent = NULL,
 283                                  wxCoord *externalLeading = NULL,
 284                                  const wxFont *theFont = NULL) const = 0;
 285     virtual void GetMultiLineTextExtent(const wxString& string,
 286                                         wxCoord *width,
 287                                         wxCoord *height,
 288                                         wxCoord *heightLine = NULL,
 289                                         const wxFont *font = NULL) const;
 290     virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
 291
 292     // clearing
 293
 294     virtual void Clear() = 0;
 295
 296     // clipping
 297
 298     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 299                                      wxCoord width, wxCoord height) = 0;
 300     virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0;
 301
 302     virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
 303                                   wxCoord *w, wxCoord *h) const
 304     {
 305         if ( x )
 306             *x = m_clipX1;
 307         if ( y )
 308             *y = m_clipY1;
 309         if ( w )
 310             *w = m_clipX2 - m_clipX1;
 311         if ( h )
 312             *h = m_clipY2 - m_clipY1;
 313     }
 314
 315     virtual void DestroyClippingRegion() { ResetClipping(); }
 316
 317
 318     // coordinates conversions and transforms
 319
 320     virtual wxCoord DeviceToLogicalX(wxCoord x) const;
 321     virtual wxCoord DeviceToLogicalY(wxCoord y) const;
 322     virtual wxCoord DeviceToLogicalXRel(wxCoord x) const;
 323     virtual wxCoord DeviceToLogicalYRel(wxCoord y) const;
 324     virtual wxCoord LogicalToDeviceX(wxCoord x) const;
 325     virtual wxCoord LogicalToDeviceY(wxCoord y) const;
 326     virtual wxCoord LogicalToDeviceXRel(wxCoord x) const;
 327     virtual wxCoord LogicalToDeviceYRel(wxCoord y) const;
 328
 329     virtual void SetMapMode(int mode);
 330     virtual int GetMapMode() const { return m_mappingMode; }
 331
 332     virtual void SetUserScale(double x, double y);
 333     virtual void GetUserScale(double *x, double *y) const
 334     {
 335         if ( x ) *x = m_userScaleX;
 336         if ( y ) *y = m_userScaleY;
 337     }
 338
 339     virtual void SetLogicalScale(double x, double y);
 340     virtual void GetLogicalScale(double *x, double *y)
 341     {
 342         if ( x ) *x = m_logicalScaleX;
 343         if ( y ) *y = m_logicalScaleY;
 344     }
 345
 346     virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
 347     virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
 348     {
 349         if ( x ) *x = m_logicalOriginX;
 350         if ( y ) *y = m_logicalOriginY;
 351     }
 352
 353     virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
 354     virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const
 355     {
 356         if ( x ) *x = m_deviceOriginX;
 357         if ( y ) *y = m_deviceOriginY;
 358     }
 359
 360     virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
 361
 362     virtual void ComputeScaleAndOrigin();
 363
 364     // this needs to overidden if the axis is inverted
 365     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
 366
 367     // ---------------------------------------------------------
 368     // the actual drawing API
 369
 370     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
 371                              int style = wxFLOOD_SURFACE) = 0;
 372
 373     virtual void DoGradientFillLinear(const wxRect& rect,
 374                                       const wxColour& initialColour,
 375                                       const wxColour& destColour,
 376                                       wxDirection nDirection = wxEAST);
 377
 378     virtual void DoGradientFillConcentric(const wxRect& rect,
 379                                         const wxColour& initialColour,
 380                                         const wxColour& destColour,
 381                                         const wxPoint& circleCenter);
 382
 383     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
 384
 385     virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
 386     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0;
 387
 388     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
 389                            wxCoord x2, wxCoord y2,
 390                            wxCoord xc, wxCoord yc) = 0;
 391     virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
 392                                  wxCoord width, wxCoord height);
 393     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 394                                    double sa, double ea) = 0;
 395
 396     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0;
 397     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 398                                         wxCoord width, wxCoord height,
 399                                         double radius) = 0;
 400     virtual void DoDrawEllipse(wxCoord x, wxCoord y,
 401                                wxCoord width, wxCoord height) = 0;
 402
 403     virtual void DoCrossHair(wxCoord x, wxCoord y) = 0;
 404
 405     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
 406     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 407                               bool useMask = false) = 0;
 408
 409     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
 410     virtual void DoDrawRotatedText(const wxString& text,
 411                                    wxCoord x, wxCoord y, double angle) = 0;
 412
 413     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
 414                         wxCoord width, wxCoord height,
 415                         wxDC *source,
 416                         wxCoord xsrc, wxCoord ysrc,
 417                         int rop = wxCOPY,
 418                         bool useMask = false,
 419                         wxCoord xsrcMask = wxDefaultCoord,
 420                         wxCoord ysrcMask = wxDefaultCoord) = 0;
 421
 422     virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
 423                                wxCoord dstWidth, wxCoord dstHeight,
 424                                wxDC *source,
 425                                wxCoord xsrc, wxCoord ysrc,
 426                                wxCoord srcWidth, wxCoord srcHeight,
 427                                int rop = wxCOPY,
 428                                bool useMask = false,
 429                                wxCoord xsrcMask = wxDefaultCoord,
 430                                wxCoord ysrcMask = wxDefaultCoord);
 431
 432     virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const
 433         { return wxNullBitmap; }
 434
 435
 436     virtual void DoDrawLines(int n, wxPoint points[],
 437                              wxCoord xoffset, wxCoord yoffset) = 0;
 438     virtual void DoDrawPolygon(int n, wxPoint points[],
 439                                wxCoord xoffset, wxCoord yoffset,
 440                                int fillStyle = wxODDEVEN_RULE) = 0;
 441     virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
 442                                wxCoord xoffset, wxCoord yoffset,
 443                                int fillStyle);
 444
 445
 446
 447 #if wxUSE_SPLINES
 448     virtual void DoDrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3);
 449     virtual void DoDrawSpline(int n, wxPoint points[]);
 450     virtual void DoDrawSpline(const wxPointList *points);
 451 #endif
 452
 453 private:
 454     wxDC    *m_owner;
 455
 456 protected:
 457     // unset clipping variables (after clipping region was destroyed)
 458     void ResetClipping()
 459     {
 460         m_clipping = false;
 461
 462         m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
 463     }
 464
 465     // flags
 466     bool m_colour:1;
 467     bool m_ok:1;
 468     bool m_clipping:1;
 469     bool m_isInteractive:1;
 470     bool m_isBBoxValid:1;
 471
 472     // coordinate system variables
 473
 474     wxCoord m_logicalOriginX, m_logicalOriginY;
 475     wxCoord m_deviceOriginX, m_deviceOriginY;           // Usually 0,0, can be change by user
 476
 477     wxCoord m_deviceLocalOriginX, m_deviceLocalOriginY; // non-zero if native top-left corner
 478                                                         // is not at 0,0. This was the case under
 479                                                         // Mac's GrafPorts (coordinate system
 480                                                         // used toplevel window's origin) and
 481                                                         // e.g. for Postscript, where the native
 482                                                         // origin in the bottom left corner.
 483     double m_logicalScaleX, m_logicalScaleY;
 484     double m_userScaleX, m_userScaleY;
 485     double m_scaleX, m_scaleY;  // calculated from logical scale and user scale
 486
 487     int m_signX, m_signY;  // Used by SetAxisOrientation() to invert the axes
 488
 489     // what is a mm on a screen you don't know the size of?
 490     double       m_mm_to_pix_x,
 491                  m_mm_to_pix_y;
 492
 493     // bounding and clipping boxes
 494     wxCoord m_minX, m_minY, m_maxX, m_maxY;
 495     wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2;
 496
 497     int m_logicalFunction;
 498     int m_backgroundMode;
 499     int m_mappingMode;
 500
 501     wxPen             m_pen;
 502     wxBrush           m_brush;
 503     wxBrush           m_backgroundBrush;
 504     wxColour          m_textForegroundColour;
 505     wxColour          m_textBackgroundColour;
 506     wxFont            m_font;
 507
 508 #if wxUSE_PALETTE
 509     wxPalette         m_palette;
 510     bool              m_hasCustomPalette;
 511 #endif // wxUSE_PALETTE
 512
 513 private:
 514     DECLARE_ABSTRACT_CLASS(wxImplDC)
 515 };
 516
 517
 518 class wxDC: public wxObject
 519 {
 520 public:
 521     wxDC()   { m_pimpl = NULL; }
 522
 523     wxImplDC *GetImpl()
 524         { return m_pimpl; }
 525     const wxImplDC *GetImpl() const
 526         { return m_pimpl; }
 527
 528
 529     bool IsOk() const
 530         { return m_pimpl && m_pimpl->IsOk(); }
 531
 532     // query capabilities
 533
 534     bool CanDrawBitmap() const
 535         { return m_pimpl->CanDrawBitmap(); }
 536     bool CanGetTextExtent() const
 537         { return m_pimpl->CanGetTextExtent(); }
 538
 539     // query dimension, colour deps, resolution
 540
 541     void GetSize(int *width, int *height) const
 542         { m_pimpl->DoGetSize(width, height); }
 543
 544     wxSize GetSize() const
 545     {
 546         int w, h;
 547         m_pimpl->DoGetSize(&w, &h);
 548         return wxSize(w, h);
 549     }
 550
 551     void GetSizeMM(int* width, int* height) const
 552         { m_pimpl->DoGetSizeMM(width, height); }
 553     wxSize GetSizeMM() const
 554     {
 555         int w, h;
 556         m_pimpl->DoGetSizeMM(&w, &h);
 557         return wxSize(w, h);
 558     }
 559
 560     int GetDepth() const
 561         { return m_pimpl->GetDepth(); }
 562     wxSize GetPPI() const
 563         { return m_pimpl->GetPPI(); }
 564
 565     // Right-To-Left (RTL) modes
 566
 567     void SetLayoutDirection(wxLayoutDirection dir)
 568         { m_pimpl->SetLayoutDirection( dir ); }
 569     wxLayoutDirection GetLayoutDirection() const
 570         { return m_pimpl->GetLayoutDirection(); }
 571
 572     // page and document
 573
 574     bool StartDoc(const wxString& message)
 575         { return m_pimpl->StartDoc(message); }
 576     void EndDoc()
 577         { m_pimpl->EndDoc(); }
 578
 579     void StartPage()
 580         { m_pimpl->StartPage(); }
 581     void EndPage()
 582         { m_pimpl->EndPage(); }
 583
 584     // bounding box
 585
 586     void CalcBoundingBox(wxCoord x, wxCoord y)
 587         { m_pimpl->CalcBoundingBox(x,y); }
 588     void ResetBoundingBox()
 589         { m_pimpl->ResetBoundingBox(); }
 590
 591     wxCoord MinX() const
 592         { return m_pimpl->MinX(); }
 593     wxCoord MaxX() const
 594         { return m_pimpl->MaxX(); }
 595     wxCoord MinY() const
 596         { return m_pimpl->MinY(); }
 597     wxCoord MaxY() const
 598         { return m_pimpl->MaxY(); }
 599
 600     // setters and getters
 601
 602     void SetFont(const wxFont& font)
 603         { m_pimpl->SetFont( font ); }
 604     const wxFont&   GetFont() const
 605         { return m_pimpl->GetFont(); }
 606
 607     void SetPen(const wxPen& pen)
 608         { m_pimpl->SetPen( pen ); }
 609     const wxPen&    GetPen() const
 610         { return m_pimpl->GetPen(); }
 611
 612     void SetBrush(const wxBrush& brush)
 613         { m_pimpl->SetBrush( brush ); }
 614     const wxBrush&  GetBrush() const
 615         { return m_pimpl->GetBrush(); }
 616
 617     void SetBackground(const wxBrush& brush)
 618         { m_pimpl->SetBackground( brush ); }
 619     const wxBrush&  GetBackground() const
 620         { return m_pimpl->GetBackground(); }
 621
 622     void SetBackgroundMode(int mode)
 623         { m_pimpl->SetBackgroundMode( mode ); }
 624     int GetBackgroundMode() const
 625         { return m_pimpl->GetBackgroundMode(); }
 626
 627     void SetTextForeground(const wxColour& colour)
 628         { m_pimpl->SetTextForeground(colour); }
 629     const wxColour& GetTextForeground() const
 630         { return m_pimpl->GetTextForeground(); }
 631
 632     void SetTextBackground(const wxColour& colour)
 633         { m_pimpl->SetTextBackground(colour); }
 634     const wxColour& GetTextBackground() const
 635         { return m_pimpl->GetTextBackground(); }
 636
 637 #if wxUSE_PALETTE
 638     void SetPalette(const wxPalette& palette)
 639         { m_pimpl->SetPalette(palette); }
 640 #endif // wxUSE_PALETTE
 641
 642     // logical functions
 643
 644     void SetLogicalFunction(int function)
 645         { m_pimpl->SetLogicalFunction(function); }
 646     int GetLogicalFunction() const
 647         { return m_pimpl->GetLogicalFunction(); }
 648
 649     // text measurement
 650
 651     wxCoord GetCharHeight() const
 652         { return m_pimpl->GetCharHeight(); }
 653     wxCoord GetCharWidth() const
 654         { return m_pimpl->GetCharWidth(); }
 655
 656     void GetTextExtent(const wxString& string,
 657                        wxCoord *x, wxCoord *y,
 658                        wxCoord *descent = NULL,
 659                        wxCoord *externalLeading = NULL,
 660                        const wxFont *theFont = NULL) const
 661         { m_pimpl->DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
 662
 663     wxSize GetTextExtent(const wxString& string) const
 664     {
 665         wxCoord w, h;
 666         m_pimpl->DoGetTextExtent(string, &w, &h);
 667         return wxSize(w, h);
 668     }
 669
 670     void GetMultiLineTextExtent(const wxString& string,
 671                                         wxCoord *width,
 672                                         wxCoord *height,
 673                                         wxCoord *heightLine = NULL,
 674                                         const wxFont *font = NULL) const
 675         { m_pimpl->GetMultiLineTextExtent( string, width, height, heightLine, font ); }
 676
 677     wxSize GetMultiLineTextExtent(const wxString& string) const
 678     {
 679         wxCoord w, h;
 680         m_pimpl->GetMultiLineTextExtent(string, &w, &h);
 681         return wxSize(w, h);
 682     }
 683
 684     bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
 685         { return m_pimpl->DoGetPartialTextExtents(text, widths); }
 686
 687     // clearing
 688
 689     void Clear()
 690         { m_pimpl->Clear(); }
 691
 692     // clipping
 693
 694     void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 695         { m_pimpl->DoSetClippingRegion(x, y, width, height); }
 696     void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
 697         { m_pimpl->DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
 698     void SetClippingRegion(const wxRect& rect)
 699         { m_pimpl->DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
 700     void SetClippingRegion(const wxRegion& region)
 701         { m_pimpl->DoSetClippingRegionAsRegion(region); }
 702
 703     void DestroyClippingRegion()
 704         { m_pimpl->DestroyClippingRegion(); }
 705
 706     void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
 707         { m_pimpl->DoGetClippingBox(x, y, w, h); }
 708     void GetClippingBox(wxRect& rect) const
 709         { m_pimpl->DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
 710
 711     // coordinates conversions and transforms
 712
 713     wxCoord DeviceToLogicalX(wxCoord x) const
 714         { return m_pimpl->DeviceToLogicalX(x); }
 715     wxCoord DeviceToLogicalY(wxCoord y) const
 716         { return m_pimpl->DeviceToLogicalY(y); }
 717     wxCoord DeviceToLogicalXRel(wxCoord x) const
 718         { return m_pimpl->DeviceToLogicalXRel(x); }
 719     wxCoord DeviceToLogicalYRel(wxCoord y) const
 720         { return m_pimpl->DeviceToLogicalYRel(y); }
 721     wxCoord LogicalToDeviceX(wxCoord x) const
 722         { return m_pimpl->LogicalToDeviceX(x); }
 723     wxCoord LogicalToDeviceY(wxCoord y) const
 724         { return m_pimpl->LogicalToDeviceY(y); }
 725     wxCoord LogicalToDeviceXRel(wxCoord x) const
 726         { return m_pimpl->LogicalToDeviceXRel(x); }
 727     wxCoord LogicalToDeviceYRel(wxCoord y) const
 728         { return m_pimpl->LogicalToDeviceYRel(y); }
 729
 730     void SetMapMode(int mode)
 731         { m_pimpl->SetMapMode(mode); }
 732     int GetMapMode() const
 733         { return m_pimpl->GetMapMode(); }
 734
 735     void SetUserScale(double x, double y)
 736         { m_pimpl->SetUserScale(x,y); }
 737     void GetUserScale(double *x, double *y) const
 738         { m_pimpl->GetUserScale( x, y ); }
 739
 740     void SetLogicalScale(double x, double y)
 741         { m_pimpl->SetLogicalScale( x, y ); }
 742     void GetLogicalScale(double *x, double *y)
 743         { m_pimpl->GetLogicalScale( x, y ); }
 744
 745     void SetLogicalOrigin(wxCoord x, wxCoord y)
 746         { m_pimpl->SetLogicalOrigin(x,y); }
 747     void GetLogicalOrigin(wxCoord *x, wxCoord *y) const
 748         { m_pimpl->DoGetLogicalOrigin(x, y); }
 749     wxPoint GetLogicalOrigin() const
 750         { wxCoord x, y; m_pimpl->DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); }
 751
 752     void SetDeviceOrigin(wxCoord x, wxCoord y)
 753         { m_pimpl->SetDeviceOrigin( x, y); }
 754     void GetDeviceOrigin(wxCoord *x, wxCoord *y) const
 755         { m_pimpl->DoGetDeviceOrigin(x, y); }
 756     wxPoint GetDeviceOrigin() const
 757         { wxCoord x, y; m_pimpl->DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
 758
 759     void SetAxisOrientation(bool xLeftRight, bool yBottomUp)
 760         { m_pimpl->SetAxisOrientation(xLeftRight, yBottomUp); }
 761
 762     // mostly internal
 763     void SetDeviceLocalOrigin( wxCoord x, wxCoord y )
 764         { m_pimpl->SetDeviceLocalOrigin( x, y ); }
 765
 766
 767     // draw generic object
 768
 769     void DrawObject(wxDrawObject* drawobject)
 770     {
 771         drawobject->Draw(*this);
 772         CalcBoundingBox(drawobject->MinX(),drawobject->MinY());
 773         CalcBoundingBox(drawobject->MaxX(),drawobject->MaxY());
 774     }
 775
 776     // -----------------------------------------------
 777     // the actual drawing API
 778
 779     bool FloodFill(wxCoord x, wxCoord y, const wxColour& col,
 780                    int style = wxFLOOD_SURFACE)
 781         { return m_pimpl->DoFloodFill(x, y, col, style); }
 782     bool FloodFill(const wxPoint& pt, const wxColour& col,
 783                    int style = wxFLOOD_SURFACE)
 784         { return m_pimpl->DoFloodFill(pt.x, pt.y, col, style); }
 785
 786     // fill the area specified by rect with a radial gradient, starting from
 787     // initialColour in the centre of the cercle and fading to destColour.
 788     void GradientFillConcentric(const wxRect& rect,
 789                                 const wxColour& initialColour,
 790                                 const wxColour& destColour)
 791         { m_pimpl->DoGradientFillConcentric( rect, initialColour, destColour,
 792                                              wxPoint(rect.GetWidth() / 2,
 793                                                      rect.GetHeight() / 2)); }
 794
 795     void GradientFillConcentric(const wxRect& rect,
 796                                 const wxColour& initialColour,
 797                                 const wxColour& destColour,
 798                                 const wxPoint& circleCenter)
 799         { m_pimpl->DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); }
 800
 801     // fill the area specified by rect with a linear gradient
 802     void GradientFillLinear(const wxRect& rect,
 803                             const wxColour& initialColour,
 804                             const wxColour& destColour,
 805                             wxDirection nDirection = wxEAST)
 806         { m_pimpl->DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
 807
 808     bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
 809         { return m_pimpl->DoGetPixel(x, y, col); }
 810     bool GetPixel(const wxPoint& pt, wxColour *col) const
 811         { return m_pimpl->DoGetPixel(pt.x, pt.y, col); }
 812
 813     void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 814         { m_pimpl->DoDrawLine(x1, y1, x2, y2); }
 815     void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
 816         { m_pimpl->DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
 817
 818     void CrossHair(wxCoord x, wxCoord y)
 819         { m_pimpl->DoCrossHair(x, y); }
 820     void CrossHair(const wxPoint& pt)
 821         { m_pimpl->DoCrossHair(pt.x, pt.y); }
 822
 823     void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 824                  wxCoord xc, wxCoord yc)
 825         { m_pimpl->DoDrawArc(x1, y1, x2, y2, xc, yc); }
 826     void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
 827         { m_pimpl->DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
 828
 829     void DrawCheckMark(wxCoord x, wxCoord y,
 830                        wxCoord width, wxCoord height)
 831         { m_pimpl->DoDrawCheckMark(x, y, width, height); }
 832     void DrawCheckMark(const wxRect& rect)
 833         { m_pimpl->DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
 834
 835     void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 836                          double sa, double ea)
 837         { m_pimpl->DoDrawEllipticArc(x, y, w, h, sa, ea); }
 838     void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
 839                          double sa, double ea)
 840         { m_pimpl->DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
 841
 842     void DrawPoint(wxCoord x, wxCoord y)
 843         { m_pimpl->DoDrawPoint(x, y); }
 844     void DrawPoint(const wxPoint& pt)
 845         { m_pimpl->DoDrawPoint(pt.x, pt.y); }
 846
 847     void DrawLines(int n, wxPoint points[],
 848                    wxCoord xoffset = 0, wxCoord yoffset = 0)
 849         { m_pimpl->DoDrawLines(n, points, xoffset, yoffset); }
 850
 851 #if 0
 852     // needs to be removed
 853     void DrawLines(const wxPointList *list,
 854                    wxCoord xoffset = 0, wxCoord yoffset = 0)
 855 #endif
 856
 857     void DrawPolygon(int n, wxPoint points[],
 858                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 859                      int fillStyle = wxODDEVEN_RULE)
 860         { m_pimpl->DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
 861
 862 #if 0
 863     // needs to be removed
 864     void DrawPolygon(const wxPointList *list,
 865                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 866                      int fillStyle = wxODDEVEN_RULE)
 867         { m_pimpl->DrawPolygon( list, xoffset, yoffset, fillStyle ); }
 868 #endif
 869
 870     void DrawPolyPolygon(int n, int count[], wxPoint points[],
 871                          wxCoord xoffset = 0, wxCoord yoffset = 0,
 872                          int fillStyle = wxODDEVEN_RULE)
 873         { m_pimpl->DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); }
 874
 875     void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 876         { m_pimpl->DoDrawRectangle(x, y, width, height); }
 877     void DrawRectangle(const wxPoint& pt, const wxSize& sz)
 878         { m_pimpl->DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
 879     void DrawRectangle(const wxRect& rect)
 880         { m_pimpl->DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
 881
 882     void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
 883                               double radius)
 884         { m_pimpl->DoDrawRoundedRectangle(x, y, width, height, radius); }
 885     void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
 886                              double radius)
 887         { m_pimpl->DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
 888     void DrawRoundedRectangle(const wxRect& r, double radius)
 889         { m_pimpl->DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
 890
 891     void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
 892         { m_pimpl->DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
 893     void DrawCircle(const wxPoint& pt, wxCoord radius)
 894         { m_pimpl->DoDrawEllipse(pt.x - radius, pt.y - radius, 2*radius, 2*radius); }
 895
 896     void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 897         { m_pimpl->DoDrawEllipse(x, y, width, height); }
 898     void DrawEllipse(const wxPoint& pt, const wxSize& sz)
 899         { m_pimpl->DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
 900     void DrawEllipse(const wxRect& rect)
 901         { m_pimpl->DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
 902
 903     void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
 904         { m_pimpl->DoDrawIcon(icon, x, y); }
 905     void DrawIcon(const wxIcon& icon, const wxPoint& pt)
 906         { m_pimpl->DoDrawIcon(icon, pt.x, pt.y); }
 907
 908     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 909                     bool useMask = false)
 910         { m_pimpl->DoDrawBitmap(bmp, x, y, useMask); }
 911     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
 912                     bool useMask = false)
 913         { m_pimpl->DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
 914
 915     void DrawText(const wxString& text, wxCoord x, wxCoord y)
 916         { m_pimpl->DoDrawText(text, x, y); }
 917     void DrawText(const wxString& text, const wxPoint& pt)
 918         { m_pimpl->DoDrawText(text, pt.x, pt.y); }
 919
 920     void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
 921         { m_pimpl->DoDrawRotatedText(text, x, y, angle); }
 922     void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
 923         { m_pimpl->DoDrawRotatedText(text, pt.x, pt.y, angle); }
 924
 925     // this version puts both optional bitmap and the text into the given
 926     // rectangle and aligns is as specified by alignment parameter; it also
 927     // will emphasize the character with the given index if it is != -1 and
 928     // return the bounding rectangle if required
 929     void DrawLabel(const wxString& text,
 930                            const wxBitmap& image,
 931                            const wxRect& rect,
 932                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
 933                            int indexAccel = -1,
 934                            wxRect *rectBounding = NULL);
 935
 936     void DrawLabel(const wxString& text, const wxRect& rect,
 937                    int alignment = wxALIGN_LEFT | wxALIGN_TOP,
 938                    int indexAccel = -1)
 939         { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
 940
 941     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 942               wxDC *source, wxCoord xsrc, wxCoord ysrc,
 943               int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)
 944     {
 945         return m_pimpl->DoBlit(xdest, ydest, width, height,
 946                       source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
 947     }
 948     bool Blit(const wxPoint& destPt, const wxSize& sz,
 949               wxDC *source, const wxPoint& srcPt,
 950               int rop = wxCOPY, bool useMask = false, const wxPoint& srcPtMask = wxDefaultPosition)
 951     {
 952         return m_pimpl->DoBlit(destPt.x, destPt.y, sz.x, sz.y,
 953                       source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
 954     }
 955
 956     bool StretchBlit(wxCoord dstX, wxCoord dstY,
 957                      wxCoord dstWidth, wxCoord dstHeight,
 958                      wxDC *source,
 959                      wxCoord srcX, wxCoord srcY,
 960                      wxCoord srcWidth, wxCoord srcHeight,
 961                      int rop = wxCOPY, bool useMask = false,
 962                      wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
 963     {
 964         return m_pimpl->DoStretchBlit(dstX, dstY, dstWidth, dstHeight,
 965                       source, srcX, srcY, srcWidth, srcHeight, rop, useMask, srcMaskX, srcMaskY);
 966     }
 967     bool StretchBlit(const wxPoint& dstPt, const wxSize& dstSize,
 968                      wxDC *source, const wxPoint& srcPt, const wxSize& srcSize,
 969                      int rop = wxCOPY, bool useMask = false, const wxPoint& srcMaskPt = wxDefaultPosition)
 970     {
 971         return m_pimpl->DoStretchBlit(dstPt.x, dstPt.y, dstSize.x, dstSize.y,
 972                       source, srcPt.x, srcPt.y, srcSize.x, srcSize.y, rop, useMask, srcMaskPt.x, srcMaskPt.y);
 973     }
 974
 975     wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const
 976     {
 977         return m_pimpl->DoGetAsBitmap(subrect);
 978     }
 979
 980 #if wxUSE_SPLINES
 981     void DrawSpline(wxCoord x1, wxCoord y1,
 982                     wxCoord x2, wxCoord y2,
 983                     wxCoord x3, wxCoord y3)
 984         { m_pimpl->DoDrawSpline(x1,y1,x2,y2,x3,y3); }
 985     void DrawSpline(int n, wxPoint points[])
 986         { m_pimpl->DoDrawSpline(n,points); }
 987     void DrawSpline(const wxPointList *points)
 988         { m_pimpl->DoDrawSpline(points); }
 989 #endif // wxUSE_SPLINES
 990
 991
 992 #if WXWIN_COMPATIBILITY_2_8
 993     // for compatibility with the old code when wxCoord was long everywhere
 994     wxDEPRECATED( void GetTextExtent(const wxString& string,
 995                        long *x, long *y,
 996                        long *descent = NULL,
 997                        long *externalLeading = NULL,
 998                        const wxFont *theFont = NULL) const );
 999     wxDEPRECATED( void GetLogicalOrigin(long *x, long *y) const );
1000     wxDEPRECATED( void GetDeviceOrigin(long *x, long *y) const );
1001     wxDEPRECATED( void GetClippingBox(long *x, long *y, long *w, long *h) const );
1002 #endif  // WXWIN_COMPATIBILITY_2_8
1003
1004
1005 protected:
1006     wxImplDC    *m_pimpl;
1007
1008 private:
1009     DECLARE_ABSTRACT_CLASS(wxImplDC)
1010 };
1011
1012
1013 //-----------------------------------------------------------------------------
1014 // wxWindowDC
1015 //-----------------------------------------------------------------------------
1016
1017 class WXDLLIMPEXP_CORE wxWindowDC : public wxDC
1018 {
1019 public:
1020     wxWindowDC();
1021     wxWindowDC( wxWindow *win );
1022
1023 private:
1024     DECLARE_DYNAMIC_CLASS(wxWindowDC)
1025 };
1026
1027 //-----------------------------------------------------------------------------
1028 // wxClientDC
1029 //-----------------------------------------------------------------------------
1030
1031 class WXDLLIMPEXP_CORE wxClientDC : public wxDC
1032 {
1033 public:
1034     wxClientDC();
1035     wxClientDC( wxWindow *win );
1036
1037 private:
1038     DECLARE_DYNAMIC_CLASS(wxClientDC)
1039 };
1040
1041 //-----------------------------------------------------------------------------
1042 // wxPaintDC
1043 //-----------------------------------------------------------------------------
1044
1045 class WXDLLIMPEXP_CORE wxPaintDC : public wxDC
1046 {
1047 public:
1048     wxPaintDC();
1049     wxPaintDC( wxWindow *win );
1050
1051 private:
1052     DECLARE_DYNAMIC_CLASS(wxPaintDC)
1053 };
1054
1055 #else  // wxUSE_NEW_DC
1056
1057
1058 class WXDLLIMPEXP_FWD_CORE wxDC;
1059
1060 // ---------------------------------------------------------------------------
1061 // global variables
1062 // ---------------------------------------------------------------------------
1063
1064 // ---------------------------------------------------------------------------
1065 // wxDC is the device context - object on which any drawing is done
1066 // ---------------------------------------------------------------------------
1067
1068 class WXDLLEXPORT wxDCBase : public wxObject
1069 {
1070 public:
1071     wxDCBase();
1072     virtual ~wxDCBase();
1073
1074     // graphic primitives
1075     // ------------------
1076
1077     virtual void DrawObject(wxDrawObject* drawobject)
1078     {
1079         drawobject->Draw(*this);
1080         CalcBoundingBox(drawobject->MinX(),drawobject->MinY());
1081         CalcBoundingBox(drawobject->MaxX(),drawobject->MaxY());
1082     }
1083
1084     wxDC *GetOwner() const { return (wxDC*) this; }
1085
1086     bool FloodFill(wxCoord x, wxCoord y, const wxColour& col,
1087                    int style = wxFLOOD_SURFACE)
1088         { return DoFloodFill(x, y, col, style); }
1089     bool FloodFill(const wxPoint& pt, const wxColour& col,
1090                    int style = wxFLOOD_SURFACE)
1091         { return DoFloodFill(pt.x, pt.y, col, style); }
1092
1093     // fill the area specified by rect with a radial gradient, starting from
1094     // initialColour in the centre of the cercle and fading to destColour.
1095     void GradientFillConcentric(const wxRect& rect,
1096                                 const wxColour& initialColour,
1097                                 const wxColour& destColour)
1098         { GradientFillConcentric(rect, initialColour, destColour,
1099                                  wxPoint(rect.GetWidth() / 2,
1100                                          rect.GetHeight() / 2)); }
1101
1102     void GradientFillConcentric(const wxRect& rect,
1103                                 const wxColour& initialColour,
1104                                 const wxColour& destColour,
1105                                 const wxPoint& circleCenter)
1106         { DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); }
1107
1108     // fill the area specified by rect with a linear gradient
1109     void GradientFillLinear(const wxRect& rect,
1110                             const wxColour& initialColour,
1111                             const wxColour& destColour,
1112                             wxDirection nDirection = wxEAST)
1113         { DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
1114
1115     bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
1116         { return DoGetPixel(x, y, col); }
1117     bool GetPixel(const wxPoint& pt, wxColour *col) const
1118         { return DoGetPixel(pt.x, pt.y, col); }
1119
1120     void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
1121         { DoDrawLine(x1, y1, x2, y2); }
1122     void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
1123         { DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
1124
1125     void CrossHair(wxCoord x, wxCoord y)
1126         { DoCrossHair(x, y); }
1127     void CrossHair(const wxPoint& pt)
1128         { DoCrossHair(pt.x, pt.y); }
1129
1130     void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
1131                  wxCoord xc, wxCoord yc)
1132         { DoDrawArc(x1, y1, x2, y2, xc, yc); }
1133     void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
1134         { DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
1135
1136     void DrawCheckMark(wxCoord x, wxCoord y,
1137                        wxCoord width, wxCoord height)
1138         { DoDrawCheckMark(x, y, width, height); }
1139     void DrawCheckMark(const wxRect& rect)
1140         { DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
1141
1142     void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1143                          double sa, double ea)
1144         { DoDrawEllipticArc(x, y, w, h, sa, ea); }
1145     void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
1146                          double sa, double ea)
1147         { DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
1148
1149     void DrawPoint(wxCoord x, wxCoord y)
1150         { DoDrawPoint(x, y); }
1151     void DrawPoint(const wxPoint& pt)
1152         { DoDrawPoint(pt.x, pt.y); }
1153
1154     void DrawLines(int n, wxPoint points[],
1155                    wxCoord xoffset = 0, wxCoord yoffset = 0)
1156         { DoDrawLines(n, points, xoffset, yoffset); }
1157     void DrawLines(const wxPointList *list,
1158                    wxCoord xoffset = 0, wxCoord yoffset = 0);
1159
1160 #if WXWIN_COMPATIBILITY_2_8
1161     wxDEPRECATED( void DrawLines(const wxList *list,
1162                                  wxCoord xoffset = 0, wxCoord yoffset = 0) );
1163 #endif  // WXWIN_COMPATIBILITY_2_8
1164
1165
1166     void DrawPolygon(int n, wxPoint points[],
1167                      wxCoord xoffset = 0, wxCoord yoffset = 0,
1168                      int fillStyle = wxODDEVEN_RULE)
1169         { DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
1170
1171     void DrawPolygon(const wxPointList *list,
1172                      wxCoord xoffset = 0, wxCoord yoffset = 0,
1173                      int fillStyle = wxODDEVEN_RULE);
1174
1175 #if WXWIN_COMPATIBILITY_2_8
1176     wxDEPRECATED( void DrawPolygon(const wxList *list,
1177                      wxCoord xoffset = 0, wxCoord yoffset = 0,
1178                      int fillStyle = wxODDEVEN_RULE) );
1179 #endif  // WXWIN_COMPATIBILITY_2_8
1180
1181     void DrawPolyPolygon(int n, int count[], wxPoint points[],
1182                          wxCoord xoffset = 0, wxCoord yoffset = 0,
1183                          int fillStyle = wxODDEVEN_RULE)
1184         { DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); }
1185
1186     void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1187         { DoDrawRectangle(x, y, width, height); }
1188     void DrawRectangle(const wxPoint& pt, const wxSize& sz)
1189         { DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
1190     void DrawRectangle(const wxRect& rect)
1191         { DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
1192
1193     void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
1194                               double radius)
1195         { DoDrawRoundedRectangle(x, y, width, height, radius); }
1196     void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
1197                              double radius)
1198         { DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
1199     void DrawRoundedRectangle(const wxRect& r, double radius)
1200         { DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
1201
1202     void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
1203         { DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
1204     void DrawCircle(const wxPoint& pt, wxCoord radius)
1205         { DrawCircle(pt.x, pt.y, radius); }
1206
1207     void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1208         { DoDrawEllipse(x, y, width, height); }
1209     void DrawEllipse(const wxPoint& pt, const wxSize& sz)
1210         { DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
1211     void DrawEllipse(const wxRect& rect)
1212         { DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
1213
1214     void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
1215         { DoDrawIcon(icon, x, y); }
1216     void DrawIcon(const wxIcon& icon, const wxPoint& pt)
1217         { DoDrawIcon(icon, pt.x, pt.y); }
1218
1219     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
1220                     bool useMask = false)
1221         { DoDrawBitmap(bmp, x, y, useMask); }
1222     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
1223                     bool useMask = false)
1224         { DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
1225
1226     void DrawText(const wxString& text, wxCoord x, wxCoord y)
1227         { DoDrawText(text, x, y); }
1228     void DrawText(const wxString& text, const wxPoint& pt)
1229         { DoDrawText(text, pt.x, pt.y); }
1230
1231     void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
1232         { DoDrawRotatedText(text, x, y, angle); }
1233     void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
1234         { DoDrawRotatedText(text, pt.x, pt.y, angle); }
1235
1236     // this version puts both optional bitmap and the text into the given
1237     // rectangle and aligns is as specified by alignment parameter; it also
1238     // will emphasize the character with the given index if it is != -1 and
1239     // return the bounding rectangle if required
1240     virtual void DrawLabel(const wxString& text,
1241                            const wxBitmap& image,
1242                            const wxRect& rect,
1243                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
1244                            int indexAccel = -1,
1245                            wxRect *rectBounding = NULL);
1246
1247     void DrawLabel(const wxString& text, const wxRect& rect,
1248                    int alignment = wxALIGN_LEFT | wxALIGN_TOP,
1249                    int indexAccel = -1)
1250         { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
1251
1252     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
1253               wxDC *source, wxCoord xsrc, wxCoord ysrc,
1254               int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)
1255     {
1256         return DoBlit(xdest, ydest, width, height,
1257                       source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
1258     }
1259     bool Blit(const wxPoint& destPt, const wxSize& sz,
1260               wxDC *source, const wxPoint& srcPt,
1261               int rop = wxCOPY, bool useMask = false, const wxPoint& srcPtMask = wxDefaultPosition)
1262     {
1263         return DoBlit(destPt.x, destPt.y, sz.x, sz.y,
1264                       source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
1265     }
1266
1267     bool StretchBlit(wxCoord dstX, wxCoord dstY,
1268                      wxCoord dstWidth, wxCoord dstHeight,
1269                      wxDC *source,
1270                      wxCoord srcX, wxCoord srcY,
1271                      wxCoord srcWidth, wxCoord srcHeight,
1272                      int rop = wxCOPY, bool useMask = false,
1273                      wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
1274     {
1275         return DoStretchBlit(dstX, dstY, dstWidth, dstHeight,
1276                       source, srcX, srcY, srcWidth, srcHeight, rop, useMask, srcMaskX, srcMaskY);
1277     }
1278     bool StretchBlit(const wxPoint& dstPt, const wxSize& dstSize,
1279                      wxDC *source, const wxPoint& srcPt, const wxSize& srcSize,
1280                      int rop = wxCOPY, bool useMask = false, const wxPoint& srcMaskPt = wxDefaultPosition)
1281     {
1282         return DoStretchBlit(dstPt.x, dstPt.y, dstSize.x, dstSize.y,
1283                       source, srcPt.x, srcPt.y, srcSize.x, srcSize.y, rop, useMask, srcMaskPt.x, srcMaskPt.y);
1284     }
1285
1286     wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const
1287     {
1288         return DoGetAsBitmap(subrect);
1289     }
1290
1291 #if wxUSE_SPLINES
1292     void DrawSpline(wxCoord x1, wxCoord y1,
1293                     wxCoord x2, wxCoord y2,
1294                     wxCoord x3, wxCoord y3);
1295     void DrawSpline(int n, wxPoint points[]);
1296
1297     void DrawSpline(const wxPointList *points) { DoDrawSpline(points); }
1298
1299 #if WXWIN_COMPATIBILITY_2_8
1300     wxDEPRECATED( void DrawSpline(const wxList *points) );
1301 #endif  // WXWIN_COMPATIBILITY_2_8
1302
1303 #endif // wxUSE_SPLINES
1304
1305     // Eventually we will have wxUSE_GENERIC_DRAWELLIPSE
1306 #ifdef __WXWINCE__
1307     //! Generic method to draw ellipses, circles and arcs with current pen and brush.
1308     /*! \param x Upper left corner of bounding box.
1309      *  \param y Upper left corner of bounding box.
1310      *  \param w Width of bounding box.
1311      *  \param h Height of bounding box.
1312      *  \param sa Starting angle of arc
1313      *            (counterclockwise, start at 3 o'clock, 360 is full circle).
1314      *  \param ea Ending angle of arc.
1315      *  \param angle Rotation angle, the Arc will be rotated after
1316      *               calculating begin and end.
1317      */
1318     void DrawEllipticArcRot( wxCoord x, wxCoord y,
1319                              wxCoord width, wxCoord height,
1320                              double sa = 0, double ea = 0, double angle = 0 )
1321     { DoDrawEllipticArcRot( x, y, width, height, sa, ea, angle ); }
1322
1323     void DrawEllipticArcRot( const wxPoint& pt,
1324                              const wxSize& sz,
1325                              double sa = 0, double ea = 0, double angle = 0 )
1326     { DoDrawEllipticArcRot( pt.x, pt.y, sz.x, sz.y, sa, ea, angle ); }
1327
1328     void DrawEllipticArcRot( const wxRect& rect,
1329                              double sa = 0, double ea = 0, double angle = 0 )
1330     { DoDrawEllipticArcRot( rect.x, rect.y, rect.width, rect.height, sa, ea, angle ); }
1331
1332     virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y,
1333                                        wxCoord w, wxCoord h,
1334                                        double sa = 0, double ea = 0, double angle = 0 );
1335
1336     //! Rotates points around center.
1337     /*! This is a quite straight method, it calculates in pixels
1338      *  and so it produces rounding errors.
1339      *  \param points The points inside will be rotated.
1340      *  \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
1341      *  \param center Center of rotation.
1342      */
1343     void Rotate( wxPointList* points, double angle, wxPoint center = wxPoint(0,0) );
1344
1345     // used by DrawEllipticArcRot
1346     // Careful: wxList gets filled with points you have to delete later.
1347     void CalculateEllipticPoints( wxPointList* points,
1348                                   wxCoord xStart, wxCoord yStart,
1349                                   wxCoord w, wxCoord h,
1350                                   double sa, double ea );
1351 #endif
1352
1353     // global DC operations
1354     // --------------------
1355
1356     virtual void Clear() = 0;
1357
1358     virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }
1359     virtual void EndDoc() { }
1360
1361     virtual void StartPage() { }
1362     virtual void EndPage() { }
1363
1364 #if WXWIN_COMPATIBILITY_2_6
1365     wxDEPRECATED( void BeginDrawing() );
1366     wxDEPRECATED( void EndDrawing() );
1367 #endif // WXWIN_COMPATIBILITY_2_6
1368
1369
1370     // set objects to use for drawing
1371     // ------------------------------
1372
1373     virtual void SetFont(const wxFont& font) = 0;
1374     virtual void SetPen(const wxPen& pen) = 0;
1375     virtual void SetBrush(const wxBrush& brush) = 0;
1376     virtual void SetBackground(const wxBrush& brush) = 0;
1377     virtual void SetBackgroundMode(int mode) = 0;
1378 #if wxUSE_PALETTE
1379     virtual void SetPalette(const wxPalette& palette) = 0;
1380 #endif // wxUSE_PALETTE
1381
1382     // clipping region
1383     // ---------------
1384
1385     void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
1386         { DoSetClippingRegion(x, y, width, height); }
1387     void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
1388         { DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
1389     void SetClippingRegion(const wxRect& rect)
1390         { DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
1391     void SetClippingRegion(const wxRegion& region)
1392         { DoSetClippingRegionAsRegion(region); }
1393
1394     virtual void DestroyClippingRegion() { ResetClipping(); }
1395
1396     void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
1397         { DoGetClippingBox(x, y, w, h); }
1398     void GetClippingBox(wxRect& rect) const
1399         {
1400           DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height);
1401         }
1402
1403     // text extent
1404     // -----------
1405
1406     virtual wxCoord GetCharHeight() const = 0;
1407     virtual wxCoord GetCharWidth() const = 0;
1408
1409     // only works for single line strings
1410     void GetTextExtent(const wxString& string,
1411                        wxCoord *x, wxCoord *y,
1412                        wxCoord *descent = NULL,
1413                        wxCoord *externalLeading = NULL,
1414                        const wxFont *theFont = NULL) const
1415         { DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
1416
1417     wxSize GetTextExtent(const wxString& string) const
1418     {
1419         wxCoord w, h;
1420         DoGetTextExtent(string, &w, &h);
1421         return wxSize(w, h);
1422     }
1423
1424     // works for single as well as multi-line strings
1425     virtual void GetMultiLineTextExtent(const wxString& string,
1426                                         wxCoord *width,
1427                                         wxCoord *height,
1428                                         wxCoord *heightLine = NULL,
1429                                         const wxFont *font = NULL) const;
1430
1431     wxSize GetMultiLineTextExtent(const wxString& string) const
1432     {
1433         wxCoord w, h;
1434         GetMultiLineTextExtent(string, &w, &h);
1435         return wxSize(w, h);
1436     }
1437
1438     // Measure cumulative width of text after each character
1439     bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
1440         { return DoGetPartialTextExtents(text, widths); }
1441
1442
1443     // size and resolution
1444     // -------------------
1445
1446     // in device units
1447     void GetSize(int *width, int *height) const
1448         { DoGetSize(width, height); }
1449     wxSize GetSize() const
1450     {
1451         int w, h;
1452         DoGetSize(&w, &h);
1453
1454         return wxSize(w, h);
1455     }
1456
1457     // in mm
1458     void GetSizeMM(int* width, int* height) const
1459         { DoGetSizeMM(width, height); }
1460     wxSize GetSizeMM() const
1461     {
1462         int w, h;
1463         DoGetSizeMM(&w, &h);
1464
1465         return wxSize(w, h);
1466     }
1467
1468     // query DC capabilities
1469     // ---------------------
1470
1471     virtual bool CanDrawBitmap() const = 0;
1472     virtual bool CanGetTextExtent() const = 0;
1473
1474     // colour depth
1475     virtual int GetDepth() const = 0;
1476
1477     // Resolution in Pixels per inch
1478     virtual wxSize GetPPI() const = 0;
1479
1480     virtual bool Ok() const { return IsOk(); }
1481     virtual bool IsOk() const { return m_ok; }
1482
1483     // accessors and setters
1484     // ---------------------
1485
1486     virtual int GetBackgroundMode() const { return m_backgroundMode; }
1487     virtual const wxBrush&  GetBackground() const { return m_backgroundBrush; }
1488     virtual const wxBrush&  GetBrush() const { return m_brush; }
1489     virtual const wxFont&   GetFont() const { return m_font; }
1490     virtual const wxPen&    GetPen() const { return m_pen; }
1491
1492     virtual const wxColour& GetTextForeground() const { return m_textForegroundColour; }
1493     virtual const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
1494     virtual void SetTextForeground(const wxColour& colour)
1495         { m_textForegroundColour = colour; }
1496     virtual void SetTextBackground(const wxColour& colour)
1497         { m_textBackgroundColour = colour; }
1498
1499
1500     // coordinates conversions and transforms
1501     // --------------------------------------
1502
1503     virtual wxCoord DeviceToLogicalX(wxCoord x) const;
1504     virtual wxCoord DeviceToLogicalY(wxCoord y) const;
1505     virtual wxCoord DeviceToLogicalXRel(wxCoord x) const;
1506     virtual wxCoord DeviceToLogicalYRel(wxCoord y) const;
1507     virtual wxCoord LogicalToDeviceX(wxCoord x) const;
1508     virtual wxCoord LogicalToDeviceY(wxCoord y) const;
1509     virtual wxCoord LogicalToDeviceXRel(wxCoord x) const;
1510     virtual wxCoord LogicalToDeviceYRel(wxCoord y) const;
1511
1512     virtual void SetMapMode(int mode);
1513     virtual int GetMapMode() const { return m_mappingMode; }
1514
1515     virtual void SetUserScale(double x, double y);
1516     virtual void GetUserScale(double *x, double *y) const
1517     {
1518         if ( x ) *x = m_userScaleX;
1519         if ( y ) *y = m_userScaleY;
1520     }
1521
1522     virtual void SetLogicalScale(double x, double y);
1523     virtual void GetLogicalScale(double *x, double *y)
1524     {
1525         if ( x ) *x = m_logicalScaleX;
1526         if ( y ) *y = m_logicalScaleY;
1527     }
1528
1529     virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
1530     void GetLogicalOrigin(wxCoord *x, wxCoord *y) const
1531         { DoGetLogicalOrigin(x, y); }
1532     wxPoint GetLogicalOrigin() const
1533         { wxCoord x, y; DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); }
1534
1535     virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
1536     void GetDeviceOrigin(wxCoord *x, wxCoord *y) const
1537         { DoGetDeviceOrigin(x, y); }
1538     wxPoint GetDeviceOrigin() const
1539         { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
1540
1541     virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
1542
1543     virtual void ComputeScaleAndOrigin();
1544
1545     // this needs to overidden if the axis is inverted (such
1546     // as when using Postscript, where 0,0 is the lower left
1547     // corner, not the upper left).
1548     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
1549
1550     // logical functions
1551     // ---------------------------
1552
1553     virtual int GetLogicalFunction() const { return m_logicalFunction; }
1554     virtual void SetLogicalFunction(int function) = 0;
1555
1556     // bounding box
1557     // ------------
1558
1559     virtual void CalcBoundingBox(wxCoord x, wxCoord y)
1560     {
1561       if ( m_isBBoxValid )
1562       {
1563          if ( x < m_minX ) m_minX = x;
1564          if ( y < m_minY ) m_minY = y;
1565          if ( x > m_maxX ) m_maxX = x;
1566          if ( y > m_maxY ) m_maxY = y;
1567       }
1568       else
1569       {
1570          m_isBBoxValid = true;
1571
1572          m_minX = x;
1573          m_minY = y;
1574          m_maxX = x;
1575          m_maxY = y;
1576       }
1577     }
1578
1579     void ResetBoundingBox()
1580     {
1581         m_isBBoxValid = false;
1582
1583         m_minX = m_maxX = m_minY = m_maxY = 0;
1584     }
1585
1586     // Get the final bounding box of the PostScript or Metafile picture.
1587     wxCoord MinX() const { return m_minX; }
1588     wxCoord MaxX() const { return m_maxX; }
1589     wxCoord MinY() const { return m_minY; }
1590     wxCoord MaxY() const { return m_maxY; }
1591
1592     // misc old functions
1593     // ------------------
1594
1595 #if WXWIN_COMPATIBILITY_2_8
1596     // for compatibility with the old code when wxCoord was long everywhere
1597     wxDEPRECATED( void GetTextExtent(const wxString& string,
1598                        long *x, long *y,
1599                        long *descent = NULL,
1600                        long *externalLeading = NULL,
1601                        const wxFont *theFont = NULL) const );
1602     wxDEPRECATED( void GetLogicalOrigin(long *x, long *y) const );
1603     wxDEPRECATED( void GetDeviceOrigin(long *x, long *y) const );
1604     wxDEPRECATED( void GetClippingBox(long *x, long *y, long *w, long *h) const );
1605 #endif  // WXWIN_COMPATIBILITY_2_8
1606
1607     // RTL related functions
1608     // ---------------------
1609
1610     // get or change the layout direction (LTR or RTL) for this dc,
1611     // wxLayout_Default is returned if layout direction is not supported
1612     virtual wxLayoutDirection GetLayoutDirection() const
1613         { return wxLayout_Default; }
1614     virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
1615         { }
1616
1617 protected:
1618     // the pure virtual functions which should be implemented by wxDC
1619     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
1620                              int style = wxFLOOD_SURFACE) = 0;
1621
1622     virtual void DoGradientFillLinear(const wxRect& rect,
1623                                       const wxColour& initialColour,
1624                                       const wxColour& destColour,
1625                                       wxDirection nDirection = wxEAST);
1626
1627     virtual void DoGradientFillConcentric(const wxRect& rect,
1628                                         const wxColour& initialColour,
1629                                         const wxColour& destColour,
1630                                         const wxPoint& circleCenter);
1631
1632     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
1633
1634     virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
1635     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0;
1636
1637     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
1638                            wxCoord x2, wxCoord y2,
1639                            wxCoord xc, wxCoord yc) = 0;
1640     virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
1641                                  wxCoord width, wxCoord height);
1642     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
1643                                    double sa, double ea) = 0;
1644
1645     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0;
1646     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
1647                                         wxCoord width, wxCoord height,
1648                                         double radius) = 0;
1649     virtual void DoDrawEllipse(wxCoord x, wxCoord y,
1650                                wxCoord width, wxCoord height) = 0;
1651
1652     virtual void DoCrossHair(wxCoord x, wxCoord y) = 0;
1653
1654     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
1655     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
1656                               bool useMask = false) = 0;
1657
1658     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
1659     virtual void DoDrawRotatedText(const wxString& text,
1660                                    wxCoord x, wxCoord y, double angle) = 0;
1661
1662     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
1663                         wxCoord width, wxCoord height,
1664                         wxDC *source,
1665                         wxCoord xsrc, wxCoord ysrc,
1666                         int rop = wxCOPY,
1667                         bool useMask = false,
1668                         wxCoord xsrcMask = wxDefaultCoord,
1669                         wxCoord ysrcMask = wxDefaultCoord) = 0;
1670
1671     virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
1672                                wxCoord dstWidth, wxCoord dstHeight,
1673                                wxDC *source,
1674                                wxCoord xsrc, wxCoord ysrc,
1675                                wxCoord srcWidth, wxCoord srcHeight,
1676                                int rop = wxCOPY,
1677                                bool useMask = false,
1678                                wxCoord xsrcMask = wxDefaultCoord,
1679                                wxCoord ysrcMask = wxDefaultCoord);
1680
1681     virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const
1682         { return wxNullBitmap; }
1683
1684     virtual void DoGetSize(int *width, int *height) const = 0;
1685     virtual void DoGetSizeMM(int* width, int* height) const = 0;
1686
1687     virtual void DoDrawLines(int n, wxPoint points[],
1688                              wxCoord xoffset, wxCoord yoffset) = 0;
1689     virtual void DoDrawPolygon(int n, wxPoint points[],
1690                                wxCoord xoffset, wxCoord yoffset,
1691                                int fillStyle = wxODDEVEN_RULE) = 0;
1692     virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
1693                                wxCoord xoffset, wxCoord yoffset,
1694                                int fillStyle);
1695
1696     virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0;
1697     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
1698                                      wxCoord width, wxCoord height) = 0;
1699
1700     virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
1701                                   wxCoord *w, wxCoord *h) const
1702     {
1703         if ( x )
1704             *x = m_clipX1;
1705         if ( y )
1706             *y = m_clipY1;
1707         if ( w )
1708             *w = m_clipX2 - m_clipX1;
1709         if ( h )
1710             *h = m_clipY2 - m_clipY1;
1711     }
1712
1713     virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
1714     {
1715         if ( x ) *x = m_logicalOriginX;
1716         if ( y ) *y = m_logicalOriginY;
1717     }
1718
1719     virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const
1720     {
1721         if ( x ) *x = m_deviceOriginX;
1722         if ( y ) *y = m_deviceOriginY;
1723     }
1724
1725     virtual void DoGetTextExtent(const wxString& string,
1726                                  wxCoord *x, wxCoord *y,
1727                                  wxCoord *descent = NULL,
1728                                  wxCoord *externalLeading = NULL,
1729                                  const wxFont *theFont = NULL) const = 0;
1730
1731     virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
1732
1733 #if wxUSE_SPLINES
1734     virtual void DoDrawSpline(const wxPointList *points);
1735 #endif
1736
1737 protected:
1738     // unset clipping variables (after clipping region was destroyed)
1739     void ResetClipping()
1740     {
1741         m_clipping = false;
1742
1743         m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
1744     }
1745
1746     // flags
1747     bool m_colour:1;
1748     bool m_ok:1;
1749     bool m_clipping:1;
1750     bool m_isInteractive:1;
1751     bool m_isBBoxValid:1;
1752
1753     // coordinate system variables
1754
1755     // TODO short descriptions of what exactly they are would be nice...
1756
1757     wxCoord m_logicalOriginX, m_logicalOriginY;
1758     wxCoord m_deviceOriginX, m_deviceOriginY;           // Usually 0,0, can be change by user
1759
1760     wxCoord m_deviceLocalOriginX, m_deviceLocalOriginY; // non-zero if native top-left corner
1761                                                         // is not at 0,0. This was the case under
1762                                                         // Mac's GrafPorts (coordinate system
1763                                                         // used toplevel window's origin) and
1764                                                         // e.g. for Postscript, where the native
1765                                                         // origin in the bottom left corner.
1766     double m_logicalScaleX, m_logicalScaleY;
1767     double m_userScaleX, m_userScaleY;
1768     double m_scaleX, m_scaleY;  // calculated from logical scale and user scale
1769
1770     // Used by SetAxisOrientation() to invert the axes
1771     int m_signX, m_signY;
1772
1773     // what is a mm on a screen you don't know the size of?
1774     double       m_mm_to_pix_x,
1775                  m_mm_to_pix_y;
1776
1777     // bounding and clipping boxes
1778     wxCoord m_minX, m_minY, m_maxX, m_maxY;
1779     wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2;
1780
1781     int m_logicalFunction;
1782     int m_backgroundMode;
1783     int m_mappingMode;
1784
1785     // GDI objects
1786     wxPen             m_pen;
1787     wxBrush           m_brush;
1788     wxBrush           m_backgroundBrush;
1789     wxColour          m_textForegroundColour;
1790     wxColour          m_textBackgroundColour;
1791     wxFont            m_font;
1792
1793 #if wxUSE_PALETTE
1794     wxPalette         m_palette;
1795     bool              m_hasCustomPalette;
1796 #endif // wxUSE_PALETTE
1797
1798 private:
1799     DECLARE_NO_COPY_CLASS(wxDCBase)
1800     DECLARE_ABSTRACT_CLASS(wxDCBase)
1801 };
1802
1803 #endif // wxUSE_NEW_DC
1804
1805 // ----------------------------------------------------------------------------
1806 // now include the declaration of wxDC class
1807 // ----------------------------------------------------------------------------
1808
1809 #if defined(__WXPALMOS__)
1810     #include "wx/palmos/dc.h"
1811 #elif defined(__WXMSW__)
1812     #include "wx/msw/dc.h"
1813 #elif defined(__WXMOTIF__)
1814     #include "wx/motif/dc.h"
1815 #elif defined(__WXGTK20__)
1816     #include "wx/gtk/dc.h"
1817 #elif defined(__WXGTK__)
1818     #include "wx/gtk1/dc.h"
1819 #elif defined(__WXX11__)
1820     #include "wx/x11/dc.h"
1821 #elif defined(__WXMGL__)
1822     #include "wx/mgl/dc.h"
1823 #elif defined(__WXDFB__)
1824     #include "wx/dfb/dc.h"
1825 #elif defined(__WXMAC__)
1826     #include "wx/mac/dc.h"
1827 #elif defined(__WXCOCOA__)
1828     #include "wx/cocoa/dc.h"
1829 #elif defined(__WXPM__)
1830     #include "wx/os2/dc.h"
1831 #endif
1832
1833 #if wxUSE_GRAPHICS_CONTEXT
1834     #include "wx/dcgraph.h"
1835 #endif
1836
1837 // ----------------------------------------------------------------------------
1838 // helper class: you can use it to temporarily change the DC text colour and
1839 // restore it automatically when the object goes out of scope
1840 // ----------------------------------------------------------------------------
1841
1842 class WXDLLEXPORT wxDCTextColourChanger
1843 {
1844 public:
1845     wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
1846
1847     wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc)
1848     {
1849         Set(col);
1850     }
1851
1852     ~wxDCTextColourChanger()
1853     {
1854         if ( m_colFgOld.Ok() )
1855             m_dc.SetTextForeground(m_colFgOld);
1856     }
1857
1858     void Set(const wxColour& col)
1859     {
1860         if ( !m_colFgOld.Ok() )
1861             m_colFgOld = m_dc.GetTextForeground();
1862         m_dc.SetTextForeground(col);
1863     }
1864
1865 private:
1866     wxDC& m_dc;
1867
1868     wxColour m_colFgOld;
1869
1870     DECLARE_NO_COPY_CLASS(wxDCTextColourChanger)
1871 };
1872
1873 // ----------------------------------------------------------------------------
1874 // helper class: you can use it to temporarily change the DC pen and
1875 // restore it automatically when the object goes out of scope
1876 // ----------------------------------------------------------------------------
1877
1878 class WXDLLEXPORT wxDCPenChanger
1879 {
1880 public:
1881     wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
1882     {
1883         m_dc.SetPen(pen);
1884     }
1885
1886     ~wxDCPenChanger()
1887     {
1888         if ( m_penOld.Ok() )
1889             m_dc.SetPen(m_penOld);
1890     }
1891
1892 private:
1893     wxDC& m_dc;
1894
1895     wxPen m_penOld;
1896
1897     DECLARE_NO_COPY_CLASS(wxDCPenChanger)
1898 };
1899
1900 // ----------------------------------------------------------------------------
1901 // helper class: you can use it to temporarily change the DC brush and
1902 // restore it automatically when the object goes out of scope
1903 // ----------------------------------------------------------------------------
1904
1905 class WXDLLEXPORT wxDCBrushChanger
1906 {
1907 public:
1908     wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
1909     {
1910         m_dc.SetBrush(brush);
1911     }
1912
1913     ~wxDCBrushChanger()
1914     {
1915         if ( m_brushOld.Ok() )
1916             m_dc.SetBrush(m_brushOld);
1917     }
1918
1919 private:
1920     wxDC& m_dc;
1921
1922     wxBrush m_brushOld;
1923
1924     DECLARE_NO_COPY_CLASS(wxDCBrushChanger)
1925 };
1926
1927 // ----------------------------------------------------------------------------
1928 // another small helper class: sets the clipping region in its ctor and
1929 // destroys it in the dtor
1930 // ----------------------------------------------------------------------------
1931
1932 class WXDLLEXPORT wxDCClipper
1933 {
1934 public:
1935     wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc)
1936         { dc.SetClippingRegion(r); }
1937     wxDCClipper(wxDC& dc, const wxRect& r) : m_dc(dc)
1938         { dc.SetClippingRegion(r.x, r.y, r.width, r.height); }
1939     wxDCClipper(wxDC& dc, wxCoord x, wxCoord y, wxCoord w, wxCoord h) : m_dc(dc)
1940         { dc.SetClippingRegion(x, y, w, h); }
1941
1942     ~wxDCClipper() { m_dc.DestroyClippingRegion(); }
1943
1944 private:
1945     wxDC& m_dc;
1946
1947     DECLARE_NO_COPY_CLASS(wxDCClipper)
1948 };
1949
1950 #endif // _WX_DC_H_BASE_