include/wx/dc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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) wxWindows team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DC_H_BASE_
  13 #define _WX_DC_H_BASE_
  14
  15 #ifdef __GNUG__
  16     #pragma interface "dcbase.h"
  17 #endif
  18
  19 // ----------------------------------------------------------------------------
  20 // headers which we must include here
  21 // ----------------------------------------------------------------------------
  22
  23 #include "wx/object.h"          // the base class
  24
  25 #include "wx/cursor.h"          // we have member variables of these classes
  26 #include "wx/font.h"            // so we can't do without them
  27 #include "wx/colour.h"
  28 #include "wx/brush.h"
  29 #include "wx/pen.h"
  30 #include "wx/palette.h"
  31
  32 #include "wx/list.h"            // we use wxList in inline functions
  33
  34 // ---------------------------------------------------------------------------
  35 // global variables
  36 // ---------------------------------------------------------------------------
  37
  38 WXDLLEXPORT_DATA(extern int) wxPageNumber;
  39
  40 // ---------------------------------------------------------------------------
  41 // wxDC is the device context - object on which any drawing is done
  42 // ---------------------------------------------------------------------------
  43
  44 class WXDLLEXPORT wxDCBase : public wxObject
  45 {
  46     DECLARE_ABSTRACT_CLASS(wxDCBase)
  47
  48 public:
  49     wxDCBase()
  50     {
  51         m_clipping = FALSE;
  52         m_ok = TRUE;
  53
  54         m_minX = m_minY = m_maxX = m_maxY = 0;
  55
  56         m_signX = m_signY = 1;
  57
  58         m_logicalOriginX = m_logicalOriginY =
  59         m_deviceOriginX = m_deviceOriginY = 0;
  60
  61         m_logicalScaleX = m_logicalScaleY =
  62         m_userScaleX = m_userScaleY =
  63         m_scaleX = m_scaleY = 1.0;
  64
  65         m_logicalFunction = -1;
  66
  67         m_backgroundMode = wxTRANSPARENT;
  68
  69         m_mappingMode = wxMM_TEXT;
  70
  71         m_backgroundBrush = *wxTRANSPARENT_BRUSH;
  72
  73         m_textForegroundColour = *wxBLACK;
  74         m_textBackgroundColour = *wxWHITE;
  75
  76         m_colour = wxColourDisplay();
  77     }
  78
  79     ~wxDCBase() { }
  80
  81     virtual void BeginDrawing() { }
  82     virtual void EndDrawing() { }
  83
  84     // graphic primitives
  85     // ------------------
  86
  87     void FloodFill(wxCoord x, wxCoord y, const wxColour& col,
  88                    int style = wxFLOOD_SURFACE)
  89         { DoFloodFill(x, y, col, style); }
  90     void FloodFill(const wxPoint& pt, const wxColour& col,
  91                    int style = wxFLOOD_SURFACE)
  92         { DoFloodFill(pt.x, pt.y, col, style); }
  93
  94     bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
  95         { return DoGetPixel(x, y, col); }
  96     bool GetPixel(const wxPoint& pt, wxColour *col) const
  97         { return DoGetPixel(pt.x, pt.y, col); }
  98
  99     void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 100         { DoDrawLine(x1, y1, x2, y2); }
 101     void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
 102         { DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
 103
 104     void CrossHair(wxCoord x, wxCoord y)
 105         { DoCrossHair(x, y); }
 106     void CrossHair(const wxPoint& pt)
 107         { DoCrossHair(pt.x, pt.y); }
 108
 109     void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 110                  wxCoord xc, wxCoord yc)
 111         { DoDrawArc(x1, y1, x2, y2, xc, yc); }
 112     void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
 113         { DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
 114
 115     void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 116                          double sa, double ea)
 117         { DoDrawEllipticArc(x, y, w, h, sa, ea); }
 118     void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
 119                          double sa, double ea)
 120         { DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
 121
 122     void DrawPoint(wxCoord x, wxCoord y)
 123         { DoDrawPoint(x, y); }
 124     void DrawPoint(const wxPoint& pt)
 125         { DoDrawPoint(pt.x, pt.y); }
 126
 127     void DrawLines(int n, wxPoint points[],
 128                    wxCoord xoffset = 0, wxCoord yoffset = 0)
 129         { DoDrawLines(n, points, xoffset, yoffset); }
 130     void DrawLines(const wxList *list,
 131                    wxCoord xoffset = 0, wxCoord yoffset = 0);
 132
 133     void DrawPolygon(int n, wxPoint points[],
 134                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 135                      int fillStyle = wxODDEVEN_RULE)
 136         { DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
 137
 138     void DrawPolygon(const wxList *list,
 139                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 140                      int fillStyle = wxODDEVEN_RULE);
 141
 142     void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 143         { DoDrawRectangle(x, y, width, height); }
 144     void DrawRectangle(const wxPoint& pt, const wxSize& sz)
 145         { DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
 146     void DrawRectangle(const wxRect& rect)
 147         { DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
 148
 149     void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
 150                               double radius)
 151         { DoDrawRoundedRectangle(x, y, width, height, radius); }
 152     void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
 153                              double radius)
 154         { DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
 155     void DrawRoundedRectangle(const wxRect& r, double radius)
 156         { DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
 157
 158     void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
 159         { DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
 160     void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 161         { DoDrawEllipse(x, y, width, height); }
 162     void DrawEllipse(const wxPoint& pt, const wxSize& sz)
 163         { DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
 164     void DrawEllipse(const wxRect& rect)
 165         { DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
 166
 167     void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
 168         { DoDrawIcon(icon, x, y); }
 169     void DrawIcon(const wxIcon& icon, const wxPoint& pt)
 170         { DoDrawIcon(icon, pt.x, pt.y); }
 171
 172     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 173                     bool useMask = FALSE)
 174         { DoDrawBitmap(bmp, x, y, useMask); }
 175     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
 176                     bool useMask = FALSE)
 177         { DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
 178
 179     void DrawText(const wxString& text, wxCoord x, wxCoord y)
 180         { DoDrawText(text, x, y); }
 181     void DrawText(const wxString& text, const wxPoint& pt)
 182         { DoDrawText(text, pt.x, pt.y); }
 183
 184     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 185               wxDC *source, wxCoord xsrc, wxCoord ysrc,
 186               int rop = wxCOPY, bool useMask = FALSE)
 187     {
 188         return DoBlit(xdest, ydest, width, height,
 189                       source, xsrc, ysrc, rop, useMask);
 190     }
 191     bool Blit(const wxPoint& destPt, const wxSize& sz,
 192               wxDC *source, const wxPoint& srcPt,
 193               int rop = wxCOPY, bool useMask = FALSE)
 194     {
 195         return DoBlit(destPt.x, destPt.y, sz.x, sz.y,
 196                       source, srcPt.x, srcPt.y, rop, useMask);
 197     }
 198
 199 #if wxUSE_SPLINES
 200     // TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
 201     void DrawSpline(wxCoord x1, wxCoord y1,
 202                     wxCoord x2, wxCoord y2,
 203                     wxCoord x3, wxCoord y3);
 204     void DrawSpline(int n, wxPoint points[]);
 205
 206     void DrawSpline(wxList *points) { DoDrawSpline(points); }
 207 #endif // wxUSE_SPLINES
 208
 209     // global DC operations
 210     // --------------------
 211
 212     virtual void Clear() = 0;
 213
 214     virtual bool StartDoc(const wxString& WXUNUSED(message)) { return TRUE; }
 215     virtual void EndDoc() { }
 216
 217     virtual void StartPage() { }
 218     virtual void EndPage() { }
 219
 220     // set objects to use for drawing
 221     // ------------------------------
 222
 223     virtual void SetFont(const wxFont& font) = 0;
 224     virtual void SetPen(const wxPen& pen) = 0;
 225     virtual void SetBrush(const wxBrush& brush) = 0;
 226     virtual void SetBackground(const wxBrush& brush) = 0;
 227     virtual void SetBackgroundMode(int mode) = 0;
 228     virtual void SetPalette(const wxPalette& palette) = 0;
 229
 230     // clipping region
 231     // ---------------
 232
 233     void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 234         { DoSetClippingRegion(x, y, width, height); }
 235     void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
 236         { DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
 237     void SetClippingRegion(const wxRect& rect)
 238         { DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
 239     void SetClippingRegion(const wxRegion& region)
 240         { DoSetClippingRegionAsRegion(region); }
 241
 242     virtual void DestroyClippingRegion() = 0;
 243
 244     void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
 245         { DoGetClippingBox(x, y, w, h); }
 246     void GetClippingBox(wxRect& rect) const
 247         { DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
 248
 249     // text extent
 250     // -----------
 251
 252     virtual wxCoord GetCharHeight() const = 0;
 253     virtual wxCoord GetCharWidth() const = 0;
 254
 255     void GetTextExtent(const wxString& string,
 256                        wxCoord *x, wxCoord *y,
 257                        wxCoord *descent = NULL,
 258                        wxCoord *externalLeading = NULL,
 259                        wxFont *theFont = NULL) const
 260         { DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
 261
 262     // size and resolution
 263     // -------------------
 264
 265     // in device units
 266     void GetSize(int *width, int *height) const
 267         { DoGetSize(width, height); }
 268     wxSize GetSize() const
 269     {
 270         int w, h;
 271         DoGetSize(&w, &h);
 272
 273         return wxSize(w, h);
 274     }
 275
 276     // in mm
 277     void GetSizeMM(int* width, int* height) const
 278         { DoGetSizeMM(width, height); }
 279     wxSize GetSizeMM() const
 280     {
 281         int w, h;
 282         DoGetSizeMM(&w, &h);
 283
 284         return wxSize(w, h);
 285     }
 286
 287     // coordinates conversions
 288     // -----------------------
 289
 290     // This group of functions does actual conversion of the input, as you'd
 291     // expect.
 292     wxCoord DeviceToLogicalX(wxCoord x) const;
 293     wxCoord DeviceToLogicalY(wxCoord y) const;
 294     wxCoord DeviceToLogicalXRel(wxCoord x) const;
 295     wxCoord DeviceToLogicalYRel(wxCoord y) const;
 296     wxCoord LogicalToDeviceX(wxCoord x) const;
 297     wxCoord LogicalToDeviceY(wxCoord y) const;
 298     wxCoord LogicalToDeviceXRel(wxCoord x) const;
 299     wxCoord LogicalToDeviceYRel(wxCoord y) const;
 300
 301     // query DC capabilities
 302     // ---------------------
 303
 304     virtual bool CanDrawBitmap() const = 0;
 305     virtual bool CanGetTextExtent() const = 0;
 306
 307     // colour depth
 308     virtual int GetDepth() const = 0;
 309
 310     // Resolution in Pixels per inch
 311     virtual wxSize GetPPI() const = 0;
 312
 313     virtual bool Ok() const { return m_ok; }
 314
 315     // accessors
 316     // ---------
 317
 318         // const...
 319     const wxBrush&  GetBackground() const { return m_backgroundBrush; }
 320     const wxBrush&  GetBrush() const { return m_brush; }
 321     const wxFont&   GetFont() const { return m_font; }
 322     const wxPen&    GetPen() const { return m_pen; }
 323     const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
 324     const wxColour& GetTextForeground() const { return m_textForegroundColour; }
 325
 326         // ... and non const
 327     wxBrush&  GetBackground() { return m_backgroundBrush; }
 328     wxBrush&  GetBrush() { return m_brush; }
 329     wxFont&   GetFont() { return m_font; }
 330     wxPen&    GetPen() { return m_pen; }
 331     wxColour& GetTextBackground() { return m_textBackgroundColour; }
 332     wxColour& GetTextForeground() { return m_textForegroundColour; }
 333
 334     virtual void SetTextForeground(const wxColour& colour)
 335         { m_textForegroundColour = colour; }
 336     virtual void SetTextBackground(const wxColour& colour)
 337         { m_textBackgroundColour = colour; }
 338
 339     int GetMapMode() const { return m_mappingMode; }
 340     virtual void SetMapMode(int mode) = 0;
 341
 342     virtual void GetUserScale(double *x, double *y) const
 343     {
 344         if ( x ) *x = m_userScaleX;
 345         if ( y ) *y = m_userScaleY;
 346     }
 347     virtual void SetUserScale(double x, double y) = 0;
 348
 349     virtual void GetLogicalScale(double *x, double *y)
 350     {
 351         if ( x ) *x = m_logicalScaleX;
 352         if ( y ) *y = m_logicalScaleY;
 353     }
 354     virtual void SetLogicalScale(double x, double y)
 355     {
 356         m_logicalScaleX = x;
 357         m_logicalScaleY = y;
 358     }
 359
 360     void GetLogicalOrigin(wxCoord *x, wxCoord *y) const
 361         { DoGetLogicalOrigin(x, y); }
 362     wxPoint GetLogicalOrigin() const
 363         { wxCoord x, y; DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); }
 364     virtual void SetLogicalOrigin(wxCoord x, wxCoord y) = 0;
 365
 366     void GetDeviceOrigin(wxCoord *x, wxCoord *y) const
 367         { DoGetDeviceOrigin(x, y); }
 368     wxPoint GetDeviceOrigin() const
 369         { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
 370     virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0;
 371
 372     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
 373
 374     int GetLogicalFunction() const { return m_logicalFunction; }
 375     virtual void SetLogicalFunction(int function) = 0;
 376
 377     // Sometimes we need to override optimization, e.g. if other software is
 378     // drawing onto our surface and we can't be sure of who's done what.
 379     //
 380     // FIXME: is this (still) used?
 381     virtual void SetOptimization(bool WXUNUSED(opt)) { }
 382     virtual bool GetOptimization() { return FALSE; }
 383
 384     // bounding box
 385     // ------------
 386
 387     virtual void CalcBoundingBox(wxCoord x, wxCoord y)
 388     {
 389         if ( x < m_minX ) m_minX = x;
 390         if ( y < m_minY ) m_minY = y;
 391         if ( x > m_maxX ) m_maxX = x;
 392         if ( y > m_maxY ) m_maxY = y;
 393     }
 394
 395     // Get the final bounding box of the PostScript or Metafile picture.
 396     wxCoord MinX() const { return m_minX; }
 397     wxCoord MaxX() const { return m_maxX; }
 398     wxCoord MinY() const { return m_minY; }
 399     wxCoord MaxY() const { return m_maxY; }
 400
 401     // misc old functions
 402     // ------------------
 403
 404     // for compatibility with the old code when wxCoord was long everywhere
 405 #ifndef __WIN16__
 406     void GetTextExtent(const wxString& string,
 407                        long *x, long *y,
 408                        long *descent = NULL,
 409                        long *externalLeading = NULL,
 410                        wxFont *theFont = NULL) const
 411     {
 412         wxCoord x2, y2, descent2, externalLeading2;
 413         DoGetTextExtent(string, &x2, &y2,
 414                         &descent2, &externalLeading2,
 415                         theFont);
 416         if ( x )
 417             *x = x2;
 418         if ( y )
 419             *y = y2;
 420         if ( descent )
 421             *descent = descent2;
 422         if ( externalLeading )
 423             *externalLeading = externalLeading2;
 424     }
 425
 426     void GetLogicalOrigin(long *x, long *y) const
 427     {
 428         wxCoord x2, y2;
 429         DoGetLogicalOrigin(&x2, &y2);
 430         if ( x )
 431             *x = x2;
 432         if ( y )
 433             *y = y2;
 434     }
 435
 436     void GetDeviceOrigin(long *x, long *y) const
 437     {
 438         wxCoord x2, y2;
 439         DoGetDeviceOrigin(&x2, &y2);
 440         if ( x )
 441             *x = x2;
 442         if ( y )
 443             *y = y2;
 444     }
 445     void GetClippingBox(long *x, long *y, long *w, long *h) const
 446     {
 447         wxCoord xx,yy,ww,hh;
 448         DoGetClippingBox(&xx, &yy, &ww, &hh);
 449         if (x) *x = xx;
 450         if (y) *y = yy;
 451         if (w) *w = ww;
 452         if (h) *h = hh;
 453     }
 454 #endif // !Win16
 455
 456 #if WXWIN_COMPATIBILITY
 457     virtual void SetColourMap(const wxPalette& palette) { SetPalette(palette); }
 458     void GetTextExtent(const wxString& string, float *x, float *y,
 459             float *descent = NULL, float *externalLeading = NULL,
 460             wxFont *theFont = NULL, bool use16bit = FALSE) const ;
 461     void GetSize(float* width, float* height) const { int w, h; GetSize(& w, & h); *width = w; *height = h; }
 462     void GetSizeMM(float *width, float *height) const { long w, h; GetSizeMM(& w, & h); *width = (float) w; *height = (float) h; }
 463 #endif // WXWIN_COMPATIBILITY
 464
 465 protected:
 466     // the pure virtual functions which should be implemented by wxDC
 467     virtual void DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
 468                              int style = wxFLOOD_SURFACE) = 0;
 469
 470     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
 471
 472     virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
 473     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0;
 474
 475     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
 476                            wxCoord x2, wxCoord y2,
 477                            wxCoord xc, wxCoord yc) = 0;
 478     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 479                                    double sa, double ea) = 0;
 480
 481     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0;
 482     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 483                                         wxCoord width, wxCoord height,
 484                                         double radius) = 0;
 485     virtual void DoDrawEllipse(wxCoord x, wxCoord y,
 486                                wxCoord width, wxCoord height) = 0;
 487
 488     virtual void DoCrossHair(wxCoord x, wxCoord y) = 0;
 489
 490     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
 491     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 492                               bool useMask = FALSE) = 0;
 493
 494     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
 495
 496     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
 497                         wxCoord width, wxCoord height,
 498                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 499                         int rop = wxCOPY, bool useMask = FALSE) = 0;
 500
 501     virtual void DoGetSize(int *width, int *height) const = 0;
 502     virtual void DoGetSizeMM(int* width, int* height) const = 0;
 503
 504     virtual void DoDrawLines(int n, wxPoint points[],
 505                              wxCoord xoffset, wxCoord yoffset) = 0;
 506     virtual void DoDrawPolygon(int n, wxPoint points[],
 507                                wxCoord xoffset, wxCoord yoffset,
 508                                int fillStyle = wxODDEVEN_RULE) = 0;
 509
 510     virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0;
 511     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 512                                      wxCoord width, wxCoord height) = 0;
 513
 514     // FIXME are these functions really different?
 515     virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
 516                                      wxCoord *w, wxCoord *h)
 517         { DoGetClippingBox(x, y, w, h); }
 518     virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
 519                                   wxCoord *w, wxCoord *h) const
 520     {
 521         if ( m_clipping )
 522         {
 523             if ( x ) *x = m_clipX1;
 524             if ( y ) *y = m_clipY1;
 525             if ( w ) *w = m_clipX2 - m_clipX1;
 526             if ( h ) *h = m_clipY2 - m_clipY1;
 527         }
 528         else
 529         {
 530             *x = *y = *w = *h = 0;
 531         }
 532     }
 533
 534     virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
 535     {
 536         if ( x ) *x = m_logicalOriginX;
 537         if ( y ) *y = m_logicalOriginY;
 538     }
 539
 540     virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const
 541     {
 542         if ( x ) *x = m_deviceOriginX;
 543         if ( y ) *y = m_deviceOriginY;
 544     }
 545
 546     virtual void DoGetTextExtent(const wxString& string,
 547                                  wxCoord *x, wxCoord *y,
 548                                  wxCoord *descent = NULL,
 549                                  wxCoord *externalLeading = NULL,
 550                                  wxFont *theFont = NULL) const = 0;
 551
 552 #if wxUSE_SPLINES
 553     virtual void DoDrawSpline(wxList *points) = 0;
 554 #endif
 555
 556 protected:
 557     // flags
 558     bool m_colour:1;
 559     bool m_ok:1;
 560     bool m_clipping:1;
 561     bool m_isInteractive:1;
 562
 563     // coordinate system variables
 564
 565     // TODO short descriptions of what exactly they are would be nice...
 566
 567     wxCoord m_logicalOriginX, m_logicalOriginY;
 568     wxCoord m_deviceOriginX, m_deviceOriginY;
 569
 570     double m_logicalScaleX, m_logicalScaleY;
 571     double m_userScaleX, m_userScaleY;
 572     double m_scaleX, m_scaleY;
 573
 574     // Used by SetAxisOrientation() to invert the axes
 575     int m_signX, m_signY;
 576
 577     // bounding and clipping boxes
 578     wxCoord m_minX, m_minY, m_maxX, m_maxY;
 579     wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2;
 580
 581     int m_logicalFunction;
 582     int m_backgroundMode;
 583     int m_mappingMode;
 584
 585     // GDI objects
 586     wxPen             m_pen;
 587     wxBrush           m_brush;
 588     wxBrush           m_backgroundBrush;
 589     wxColour          m_textForegroundColour;
 590     wxColour          m_textBackgroundColour;
 591     wxFont            m_font;
 592     wxPalette         m_palette;
 593
 594 private:
 595     DECLARE_NO_COPY_CLASS(wxDCBase);
 596 };
 597
 598 // ----------------------------------------------------------------------------
 599 // now include the declaration of wxDC class
 600 // ----------------------------------------------------------------------------
 601
 602 #if defined(__WXMSW__)
 603     #include "wx/msw/dc.h"
 604 #elif defined(__WXMOTIF__)
 605     #include "wx/motif/dc.h"
 606 #elif defined(__WXGTK__)
 607     #include "wx/gtk/dc.h"
 608 #elif defined(__WXQT__)
 609     #include "wx/qt/dc.h"
 610 #elif defined(__WXMAC__)
 611     #include "wx/mac/dc.h"
 612 #elif defined(__WXPM__)
 613     #include "wx/os2/dc.h"
 614 #elif defined(__WXSTUBS__)
 615     #include "wx/stubs/dc.h"
 616 #endif
 617
 618 #endif
 619     // _WX_DC_H_BASE_