wxPython/include/wx/wxPython/pseudodc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        pseudodc.h
   3 // Purpose:     wxPseudoDC class
   4 // Author:      Paul Lanier
   5 // Modified by:
   6 // Created:     05/25/06
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11 #ifndef _WX_PSUEDO_DC_H_BASE_
  12 #define _WX_PSUEDO_DC_H_BASE_
  13
  14 //----------------------------------------------------------------------------
  15 // Base class for all pdcOp classes
  16 //----------------------------------------------------------------------------
  17 class pdcOp
  18 {
  19     public:
  20         // Constructor and Destructor
  21         pdcOp() {}
  22         virtual ~pdcOp() {}
  23
  24         // Virtual Drawing Methods
  25         virtual void DrawToDC(wxDC *dc, bool grey=false)=0;
  26         virtual void Translate(wxCoord WXUNUSED(dx), wxCoord WXUNUSED(dy)) {}
  27         virtual void CacheGrey() {}
  28 };
  29
  30 //----------------------------------------------------------------------------
  31 // declare a list class for list of pdcOps
  32 //----------------------------------------------------------------------------
  33 WX_DECLARE_LIST(pdcOp, pdcOpList);
  34
  35
  36 //----------------------------------------------------------------------------
  37 // Helper functions used for drawing greyed out versions of objects
  38 //----------------------------------------------------------------------------
  39 wxColour &MakeColourGrey(const wxColour &c);
  40 wxBrush &GetGreyBrush(wxBrush &brush);
  41 wxPen &GetGreyPen(wxPen &pen);
  42 wxIcon &GetGreyIcon(wxIcon &icon);
  43 wxBitmap &GetGreyBitmap(wxBitmap &bmp);
  44
  45 //----------------------------------------------------------------------------
  46 // Classes derived from pdcOp
  47 // There is one class for each method mirrored from wxDC to wxPseudoDC
  48 //----------------------------------------------------------------------------
  49 class pdcSetFontOp : public pdcOp
  50 {
  51     public:
  52         pdcSetFontOp(const wxFont& font)
  53             {m_font=font;}
  54         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->SetFont(m_font);}
  55     protected:
  56         wxFont m_font;
  57 };
  58
  59 class pdcSetBrushOp : public pdcOp
  60 {
  61     public:
  62         pdcSetBrushOp(const wxBrush& brush)
  63             {m_greybrush=m_brush=brush;}
  64         virtual void DrawToDC(wxDC *dc, bool grey=false)
  65         {
  66             if (!grey) dc->SetBrush(m_brush);
  67             else dc->SetBrush(m_greybrush);
  68         }
  69         virtual void CacheGrey() {m_greybrush=GetGreyBrush(m_brush);}
  70     protected:
  71         wxBrush m_brush;
  72         wxBrush m_greybrush;
  73 };
  74
  75 class pdcSetBackgroundOp : public pdcOp
  76 {
  77     public:
  78         pdcSetBackgroundOp(const wxBrush& brush)
  79             {m_greybrush=m_brush=brush;}
  80         virtual void DrawToDC(wxDC *dc, bool grey=false)
  81         {
  82             if (!grey) dc->SetBackground(m_brush);
  83             else dc->SetBackground(m_greybrush);
  84         }
  85         virtual void CacheGrey() {m_greybrush=GetGreyBrush(m_brush);}
  86     protected:
  87         wxBrush m_brush;
  88         wxBrush m_greybrush;
  89 };
  90
  91 class pdcSetPenOp : public pdcOp
  92 {
  93     public:
  94         pdcSetPenOp(const wxPen& pen)
  95             {m_greypen=m_pen=pen;}
  96         virtual void DrawToDC(wxDC *dc, bool grey=false)
  97         {
  98             if (!grey) dc->SetPen(m_pen);
  99             else dc->SetPen(m_greypen);
 100         }
 101         virtual void CacheGrey() {m_greypen=GetGreyPen(m_pen);}
 102     protected:
 103         wxPen m_pen;
 104         wxPen m_greypen;
 105 };
 106
 107 class pdcSetTextBackgroundOp : public pdcOp
 108 {
 109     public:
 110         pdcSetTextBackgroundOp(const wxColour& colour)
 111             {m_colour=colour;}
 112         virtual void DrawToDC(wxDC *dc, bool grey=false)
 113         {
 114             if (!grey) dc->SetTextBackground(m_colour);
 115             else dc->SetTextBackground(MakeColourGrey(m_colour));
 116         }
 117     protected:
 118         wxColour m_colour;
 119 };
 120
 121 class pdcSetTextForegroundOp : public pdcOp
 122 {
 123     public:
 124         pdcSetTextForegroundOp(const wxColour& colour)
 125             {m_colour=colour;}
 126         virtual void DrawToDC(wxDC *dc, bool grey=false)
 127         {
 128             if (!grey) dc->SetTextForeground(m_colour);
 129             else dc->SetTextForeground(MakeColourGrey(m_colour));
 130         }
 131     protected:
 132         wxColour m_colour;
 133 };
 134
 135 class pdcDrawRectangleOp : public pdcOp
 136 {
 137     public:
 138         pdcDrawRectangleOp(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 139             {m_x=x; m_y=y; m_w=w; m_h=h;}
 140         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawRectangle(m_x,m_y,m_w,m_h);}
 141         virtual void Translate(wxCoord dx, wxCoord dy)
 142             {m_x+=dx;m_y+=dy;}
 143     protected:
 144         wxCoord m_x,m_y,m_w,m_h;
 145 };
 146
 147 class pdcDrawLineOp : public pdcOp
 148 {
 149     public:
 150         pdcDrawLineOp(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 151             {m_x1=x1; m_y1=y1; m_x2=x2; m_y2=y2;}
 152         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawLine(m_x1,m_y1,m_x2,m_y2);}
 153         virtual void Translate(wxCoord dx, wxCoord dy)
 154             {m_x1+=dx; m_y1+=dy; m_x2+=dx; m_y2+=dy;}
 155     protected:
 156         wxCoord m_x1,m_y1,m_x2,m_y2;
 157 };
 158
 159 class pdcSetBackgroundModeOp : public pdcOp
 160 {
 161     public:
 162         pdcSetBackgroundModeOp(int mode) {m_mode=mode;}
 163         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->SetBackgroundMode(m_mode);}
 164     protected:
 165         int m_mode;
 166 };
 167
 168 class pdcDrawTextOp : public pdcOp
 169 {
 170     public:
 171         pdcDrawTextOp(const wxString& text, wxCoord x, wxCoord y)
 172             {m_text=text; m_x=x; m_y=y;}
 173         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawText(m_text, m_x, m_y);}
 174         virtual void Translate(wxCoord dx, wxCoord dy)
 175             {m_x+=dx; m_y+=dy;}
 176     protected:
 177         wxString m_text;
 178         wxCoord m_x, m_y;
 179 };
 180
 181 class pdcClearOp : public pdcOp
 182 {
 183     public:
 184         pdcClearOp() {}
 185         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->Clear();}
 186 };
 187
 188 class pdcBeginDrawingOp : public pdcOp
 189 {
 190     public:
 191         pdcBeginDrawingOp() {}
 192         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->BeginDrawing();}
 193 };
 194
 195 class pdcEndDrawingOp : public pdcOp
 196 {
 197     public:
 198         pdcEndDrawingOp() {}
 199         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->EndDrawing();}
 200 };
 201
 202 class pdcFloodFillOp : public pdcOp
 203 {
 204     public:
 205         pdcFloodFillOp(wxCoord x, wxCoord y, const wxColour& col,
 206                    int style) {m_x=x; m_y=y; m_col=col; m_style=style;}
 207         virtual void DrawToDC(wxDC *dc, bool grey=false)
 208         {
 209             if (!grey) dc->FloodFill(m_x,m_y,m_col,m_style);
 210             else dc->FloodFill(m_x,m_y,MakeColourGrey(m_col),m_style);
 211         }
 212         virtual void Translate(wxCoord dx, wxCoord dy)
 213             {m_x+=dx; m_y+=dy;}
 214     protected:
 215         wxCoord m_x,m_y;
 216         wxColour m_col;
 217         int m_style;
 218 };
 219
 220 class pdcCrossHairOp : public pdcOp
 221 {
 222     public:
 223         pdcCrossHairOp(wxCoord x, wxCoord y) {m_x=x; m_y=y;}
 224         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->CrossHair(m_x,m_y);}
 225         virtual void Translate(wxCoord dx, wxCoord dy)
 226             {m_x+=dx; m_y+=dy;}
 227     protected:
 228         wxCoord m_x,m_y;
 229 };
 230
 231 class pdcDrawArcOp : public pdcOp
 232 {
 233     public:
 234         pdcDrawArcOp(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 235                          wxCoord xc, wxCoord yc)
 236             {m_x1=x1; m_y1=y1; m_x2=x2; m_y2=y2; m_xc=xc; m_yc=yc;}
 237         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 238             {dc->DrawArc(m_x1,m_y1,m_x2,m_y2,m_xc,m_yc);}
 239         virtual void Translate(wxCoord dx, wxCoord dy)
 240             {m_x1+=dx; m_x2+=dx; m_y1+=dy; m_y2+=dy;}
 241     protected:
 242         wxCoord m_x1,m_x2,m_xc;
 243         wxCoord m_y1,m_y2,m_yc;
 244 };
 245
 246 class pdcDrawCheckMarkOp : public pdcOp
 247 {
 248     public:
 249         pdcDrawCheckMarkOp(wxCoord x, wxCoord y,
 250                        wxCoord width, wxCoord height)
 251             {m_x=x; m_y=y; m_w=width; m_h=height;}
 252         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 253             {dc->DrawCheckMark(m_x,m_y,m_w,m_h);}
 254         virtual void Translate(wxCoord dx, wxCoord dy)
 255             {m_x+=dx; m_y+=dy;}
 256     protected:
 257         wxCoord m_x,m_y,m_w,m_h;
 258 };
 259
 260 class pdcDrawEllipticArcOp : public pdcOp
 261 {
 262     public:
 263         pdcDrawEllipticArcOp(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 264                          double sa, double ea)
 265             {m_x=x; m_y=y; m_w=w; m_h=h; m_sa=sa; m_ea=ea;}
 266         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 267             {dc->DrawEllipticArc(m_x,m_y,m_w,m_h,m_sa,m_ea);}
 268         virtual void Translate(wxCoord dx, wxCoord dy)
 269             {m_x+=dx; m_y+=dy;}
 270     protected:
 271         wxCoord m_x,m_y,m_w,m_h;
 272         double m_sa,m_ea;
 273 };
 274
 275 class pdcDrawPointOp : public pdcOp
 276 {
 277     public:
 278         pdcDrawPointOp(wxCoord x, wxCoord y)
 279             {m_x=x; m_y=y;}
 280         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawPoint(m_x,m_y);}
 281         virtual void Translate(wxCoord dx, wxCoord dy)
 282             {m_x+=dx; m_y+=dy;}
 283     protected:
 284         wxCoord m_x,m_y;
 285 };
 286
 287 class pdcDrawRoundedRectangleOp : public pdcOp
 288 {
 289     public:
 290         pdcDrawRoundedRectangleOp(wxCoord x, wxCoord y, wxCoord width,
 291                                   wxCoord height, double radius)
 292             {m_x=x; m_y=y; m_w=width; m_h=height; m_r=radius;}
 293         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 294             {dc->DrawRoundedRectangle(m_x,m_y,m_w,m_h,m_r);}
 295         virtual void Translate(wxCoord dx, wxCoord dy)
 296             {m_x+=dx; m_y+=dy;}
 297     protected:
 298         wxCoord m_x,m_y,m_w,m_h;
 299         double m_r;
 300 };
 301
 302 class pdcDrawEllipseOp : public pdcOp
 303 {
 304     public:
 305         pdcDrawEllipseOp(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 306             {m_x=x; m_y=y; m_w=width; m_h=height;}
 307         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawEllipse(m_x,m_y,m_w,m_h);}
 308         virtual void Translate(wxCoord dx, wxCoord dy)
 309             {m_x+=dx; m_y+=dy;}
 310     protected:
 311         wxCoord m_x,m_y,m_w,m_h;
 312 };
 313
 314 class pdcDrawIconOp : public pdcOp
 315 {
 316     public:
 317         pdcDrawIconOp(const wxIcon& icon, wxCoord x, wxCoord y)
 318             {m_icon=icon; m_x=x; m_y=y;}
 319         virtual void DrawToDC(wxDC *dc, bool grey=false)
 320         {
 321             if (grey) dc->DrawIcon(m_greyicon,m_x,m_y);
 322             else dc->DrawIcon(m_icon,m_x,m_y);
 323         }
 324         virtual void CacheGrey() {m_greyicon=GetGreyIcon(m_icon);}
 325         virtual void Translate(wxCoord dx, wxCoord dy)
 326             {m_x+=dx; m_y+=dy;}
 327     protected:
 328         wxIcon m_icon;
 329         wxIcon m_greyicon;
 330         wxCoord m_x,m_y;
 331 };
 332
 333 class pdcDrawLinesOp : public pdcOp
 334 {
 335     public:
 336         pdcDrawLinesOp(int n, wxPoint points[],
 337                wxCoord xoffset = 0, wxCoord yoffset = 0);
 338         virtual ~pdcDrawLinesOp();
 339         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 340             {dc->DrawLines(m_n,m_points,m_xoffset,m_yoffset);}
 341         virtual void Translate(wxCoord dx, wxCoord dy)
 342         {
 343             for(int i=0; i<m_n; i++)
 344             {
 345                 m_points[i].x+=dx;
 346                 m_points[i].y+=dy;
 347             }
 348         }
 349     protected:
 350         int m_n;
 351         wxPoint *m_points;
 352         wxCoord m_xoffset,m_yoffset;
 353 };
 354
 355 class pdcDrawPolygonOp : public pdcOp
 356 {
 357     public:
 358         pdcDrawPolygonOp(int n, wxPoint points[],
 359                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 360                      int fillStyle = wxODDEVEN_RULE);
 361         virtual ~pdcDrawPolygonOp();
 362         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 363             {dc->DrawPolygon(m_n,m_points,m_xoffset,m_yoffset,m_fillStyle);}
 364
 365         virtual void Translate(wxCoord dx, wxCoord dy)
 366         {
 367             for(int i=0; i<m_n; i++)
 368             {
 369                 m_points[i].x+=dx;
 370                 m_points[i].y+=dy;
 371             }
 372         }
 373     protected:
 374         int m_n;
 375         wxPoint *m_points;
 376         wxCoord m_xoffset,m_yoffset;
 377         int m_fillStyle;
 378 };
 379
 380 class pdcDrawPolyPolygonOp : public pdcOp
 381 {
 382     public:
 383         pdcDrawPolyPolygonOp(int n, int count[], wxPoint points[],
 384                          wxCoord xoffset = 0, wxCoord yoffset = 0,
 385                          int fillStyle = wxODDEVEN_RULE);
 386         virtual ~pdcDrawPolyPolygonOp();
 387         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 388             {dc->DrawPolyPolygon(m_n,m_count,m_points,
 389                     m_xoffset,m_yoffset,m_fillStyle);}
 390         virtual void Translate(wxCoord dx, wxCoord dy)
 391         {
 392             for(int i=0; i<m_totaln; i++)
 393             {
 394                 m_points[i].x += dx;
 395                 m_points[i].y += dy;
 396             }
 397         }
 398     protected:
 399         int m_n;
 400         int m_totaln;
 401         int *m_count;
 402         wxPoint *m_points;
 403         wxCoord m_xoffset, m_yoffset;
 404         int m_fillStyle;
 405 };
 406
 407 class pdcDrawRotatedTextOp : public pdcOp
 408 {
 409     public:
 410         pdcDrawRotatedTextOp(const wxString& text, wxCoord x, wxCoord y, double angle)
 411             {m_text=text; m_x=x; m_y=y; m_angle=angle;}
 412         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 413             {dc->DrawRotatedText(m_text,m_x,m_y,m_angle);}
 414         virtual void Translate(wxCoord dx, wxCoord dy)
 415             {m_x+=dx; m_y+=dy;}
 416     protected:
 417         wxString m_text;
 418         wxCoord m_x,m_y;
 419         double m_angle;
 420 };
 421
 422 class pdcDrawBitmapOp : public pdcOp
 423 {
 424     public:
 425         pdcDrawBitmapOp(const wxBitmap &bmp, wxCoord x, wxCoord y,
 426                         bool useMask = false)
 427             {m_bmp=bmp; m_x=x; m_y=y; m_useMask=useMask;}
 428         virtual void DrawToDC(wxDC *dc, bool grey=false)
 429         {
 430             if (grey) dc->DrawBitmap(m_greybmp,m_x,m_y,m_useMask);
 431             else dc->DrawBitmap(m_bmp,m_x,m_y,m_useMask);
 432         }
 433         virtual void CacheGrey() {m_greybmp=GetGreyBitmap(m_bmp);}
 434         virtual void Translate(wxCoord dx, wxCoord dy)
 435             {m_x+=dx; m_y+=dy;}
 436     protected:
 437         wxBitmap m_bmp;
 438         wxBitmap m_greybmp;
 439         wxCoord m_x,m_y;
 440         bool m_useMask;
 441 };
 442
 443 class pdcDrawLabelOp : public pdcOp
 444 {
 445     public:
 446         pdcDrawLabelOp(const wxString& text,
 447                            const wxBitmap& image,
 448                            const wxRect& rect,
 449                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
 450                            int indexAccel = -1)
 451             {m_text=text; m_image=image; m_rect=rect;
 452              m_align=alignment; m_iAccel=indexAccel;}
 453         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false)
 454             {dc->DrawLabel(m_text,m_image,m_rect,m_align,m_iAccel);}
 455         virtual void Translate(wxCoord dx, wxCoord dy)
 456             {m_rect.x+=dx; m_rect.y+=dy;}
 457     protected:
 458         wxString m_text;
 459         wxBitmap m_image;
 460         wxRect m_rect;
 461         int m_align;
 462         int m_iAccel;
 463 };
 464
 465 #if wxUSE_SPLINES
 466 class pdcDrawSplineOp : public pdcOp
 467 {
 468     public:
 469         pdcDrawSplineOp(int n, wxPoint points[]);
 470         virtual ~pdcDrawSplineOp();
 471         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->DrawSpline(m_n,m_points);}
 472         virtual void Translate(wxCoord dx, wxCoord dy)
 473         {
 474             int i;
 475             for(i=0; i<m_n; i++)
 476                 m_points[i].x+=dx; m_points[i].y+=dy;
 477         }
 478     protected:
 479         wxPoint *m_points;
 480         int m_n;
 481 };
 482 #endif // wxUSE_SPLINES
 483
 484 #if wxUSE_PALETTE
 485 class pdcSetPaletteOp : public pdcOp
 486 {
 487     public:
 488         pdcSetPaletteOp(const wxPalette& palette) {m_palette=palette;}
 489         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->SetPalette(m_palette);}
 490     protected:
 491         wxPalette m_palette;
 492 };
 493 #endif // wxUSE_PALETTE
 494
 495 class pdcSetLogicalFunctionOp : public pdcOp
 496 {
 497     public:
 498         pdcSetLogicalFunctionOp(int function) {m_function=function;}
 499         virtual void DrawToDC(wxDC *dc, bool WXUNUSED(grey)=false) {dc->SetLogicalFunction(m_function);}
 500     protected:
 501         int m_function;
 502 };
 503
 504 //----------------------------------------------------------------------------
 505 // pdcObject type to contain list of operations for each real (Python) object
 506 //----------------------------------------------------------------------------
 507 class pdcObject
 508 {
 509     public:
 510         pdcObject(int id)
 511             {m_id=id; m_bounded=false; m_oplist.DeleteContents(true);
 512              m_greyedout=false;}
 513
 514         virtual ~pdcObject() {m_oplist.Clear();}
 515
 516         // Protected Member Access
 517         void SetId(int id) {m_id=id;}
 518         int  GetId() {return m_id;}
 519         void   SetBounds(wxRect& rect) {m_bounds=rect; m_bounded=true;}
 520         wxRect GetBounds() {return m_bounds;}
 521         void SetBounded(bool bounded) {m_bounded=bounded;}
 522         bool IsBounded() {return m_bounded;}
 523         void SetGreyedOut(bool greyout=true);
 524         bool GetGreyedOut() {return m_greyedout;}
 525
 526         // Op List Management Methods
 527         void Clear() {m_oplist.Clear();}
 528         void AddOp(pdcOp *op)
 529         {
 530             m_oplist.Append(op);
 531             if (m_greyedout) op->CacheGrey();
 532         }
 533         int  GetLen() {return m_oplist.GetCount();}
 534         virtual void Translate(wxCoord dx, wxCoord dy);
 535
 536         // Drawing Method
 537         virtual void DrawToDC(wxDC *dc);
 538     protected:
 539         int m_id; // id of object (associates this pdcObject
 540                   //               with a Python object with same id)
 541         wxRect m_bounds;  // bounding rect of this object
 542         bool m_bounded;   // true if bounds is valid, false by default
 543         pdcOpList m_oplist; // list of operations for this object
 544         bool m_greyedout; // if true then draw this object in greys only
 545 };
 546
 547
 548 //----------------------------------------------------------------------------
 549 // Declare a wxList to hold all the objects.  List order reflects drawing
 550 // order (Z order) and is the same order as objects are added to the list
 551 //----------------------------------------------------------------------------
 552 class pdcObjectList;
 553 WX_DECLARE_LIST(pdcObject, pdcObjectList);
 554
 555
 556 // ----------------------------------------------------------------------------
 557 // wxPseudoDC class
 558 // ----------------------------------------------------------------------------
 559 // This is the actual PseudoDC class
 560 // This class stores a list of recorded dc operations in m_list
 561 // and plays them back to a real dc using DrawToDC or DrawToDCClipped.
 562 // Drawing methods are mirrored from wxDC but add nodes to m_list
 563 // instead of doing any real drawing.
 564 // ----------------------------------------------------------------------------
 565 class wxPseudoDC : public wxObject
 566 {
 567 public:
 568     wxPseudoDC()
 569         {m_currId=-1; m_lastObjNode=NULL; m_objectlist.DeleteContents(true);}
 570     ~wxPseudoDC();
 571     // ------------------------------------------------------------------------
 572     // List managment methods
 573     //
 574     void RemoveAll();
 575     int GetLen();
 576
 577     // ------------------------------------------------------------------------
 578     // methods for managing operations by ID
 579     //
 580     // Set the Id for all subsequent operations (until SetId is called again)
 581     void SetId(int id) {m_currId = id;}
 582     // Remove all the operations associated with an id so it can be redrawn
 583     void ClearId(int id);
 584     // Remove the object node (and all operations) associated with an id
 585     void RemoveId(int id);
 586     // Set the bounding rect of a given object
 587     // This will create an object node if one doesn't exist
 588     void SetIdBounds(int id, wxRect& rect);
 589     void GetIdBounds(int id, wxRect& rect);
 590     // Translate all the operations for this id
 591     void TranslateId(int id, wxCoord dx, wxCoord dy);
 592     // Grey-out an object
 593     void SetIdGreyedOut(int id, bool greyout=true);
 594     bool GetIdGreyedOut(int id);
 595     // Find Objects at a point.  Returns Python list of id's
 596     // sorted in reverse drawing order (result[0] is top object)
 597     // This version looks at drawn pixels
 598     PyObject *FindObjects(wxCoord x, wxCoord y,
 599                           wxCoord radius=1, const wxColor& bg=*wxWHITE);
 600     // This version only looks at bounding boxes
 601     PyObject *FindObjectsByBBox(wxCoord x, wxCoord y);
 602
 603     // ------------------------------------------------------------------------
 604     // Playback Methods
 605     //
 606     // draw to dc but skip objects known to be outside of rect
 607     // This is a coarse level of clipping to speed things up
 608     // when lots of objects are off screen and doesn't affect the dc level
 609     // clipping
 610     void DrawToDCClipped(wxDC *dc, const wxRect& rect);
 611         void DrawToDCClippedRgn(wxDC *dc, const wxRegion& region);
 612     // draw to dc with no clipping (well the dc will still clip)
 613     void DrawToDC(wxDC *dc);
 614     // draw a single object to the dc
 615     void DrawIdToDC(int id, wxDC *dc);
 616
 617     // ------------------------------------------------------------------------
 618     // Hit Detection Methods
 619     //
 620     // returns list of object with a drawn pixel within radius pixels of (x,y)
 621     // the list is in reverse draw order so last drawn is first in list
 622     // PyObject *HitTest(wxCoord x, wxCoord y, double radius)
 623     // returns list of objects whose bounding boxes include (x,y)
 624     // PyObject *HitTestBB(wxCoord x, wxCoord y)
 625
 626
 627     // ------------------------------------------------------------------------
 628     // Methods mirrored from wxDC
 629     //
 630     void FloodFill(wxCoord x, wxCoord y, const wxColour& col,
 631                    int style = wxFLOOD_SURFACE)
 632         {AddToList(new pdcFloodFillOp(x,y,col,style));}
 633     void FloodFill(const wxPoint& pt, const wxColour& col,
 634                    int style = wxFLOOD_SURFACE)
 635         { FloodFill(pt.x, pt.y, col, style); }
 636
 637     void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 638         {AddToList(new pdcDrawLineOp(x1, y1, x2, y2));}
 639     void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
 640         { DrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
 641
 642     void CrossHair(wxCoord x, wxCoord y)
 643         {AddToList(new pdcCrossHairOp(x,y));}
 644     void CrossHair(const wxPoint& pt)
 645         { CrossHair(pt.x, pt.y); }
 646
 647     void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 648                  wxCoord xc, wxCoord yc)
 649         {AddToList(new pdcDrawArcOp(x1,y1,x2,y2,xc,yc));}
 650     void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
 651         { DrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
 652
 653     void DrawCheckMark(wxCoord x, wxCoord y,
 654                        wxCoord width, wxCoord height)
 655         {AddToList(new pdcDrawCheckMarkOp(x,y,width,height));}
 656     void DrawCheckMark(const wxRect& rect)
 657         { DrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
 658
 659     void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 660                          double sa, double ea)
 661         {AddToList(new pdcDrawEllipticArcOp(x,y,w,h,sa,ea));}
 662     void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
 663                          double sa, double ea)
 664         { DrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
 665
 666     void DrawPoint(wxCoord x, wxCoord y)
 667         {AddToList(new pdcDrawPointOp(x,y));}
 668     void DrawPoint(const wxPoint& pt)
 669         { DrawPoint(pt.x, pt.y); }
 670
 671     void DrawPolygon(int n, wxPoint points[],
 672                      wxCoord xoffset = 0, wxCoord yoffset = 0,
 673                      int fillStyle = wxODDEVEN_RULE)
 674         {AddToList(new pdcDrawPolygonOp(n,points,xoffset,yoffset,fillStyle));}
 675
 676     void DrawPolyPolygon(int n, int count[], wxPoint points[],
 677                          wxCoord xoffset = 0, wxCoord yoffset = 0,
 678                          int fillStyle = wxODDEVEN_RULE)
 679         {AddToList(new pdcDrawPolyPolygonOp(n,count,points,xoffset,yoffset,fillStyle));}
 680
 681     void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 682         {AddToList(new pdcDrawRectangleOp(x, y, width, height));}
 683     void DrawRectangle(const wxPoint& pt, const wxSize& sz)
 684         { DrawRectangle(pt.x, pt.y, sz.x, sz.y); }
 685     void DrawRectangle(const wxRect& rect)
 686         { DrawRectangle(rect.x, rect.y, rect.width, rect.height); }
 687
 688     void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
 689                               double radius)
 690         {AddToList(new pdcDrawRoundedRectangleOp(x,y,width,height,radius));}
 691     void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
 692                              double radius)
 693         { DrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
 694     void DrawRoundedRectangle(const wxRect& r, double radius)
 695         { DrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
 696
 697     void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
 698         { DrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
 699     void DrawCircle(const wxPoint& pt, wxCoord radius)
 700         { DrawCircle(pt.x, pt.y, radius); }
 701
 702     void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 703         {AddToList(new pdcDrawEllipseOp(x,y,width,height));}
 704     void DrawEllipse(const wxPoint& pt, const wxSize& sz)
 705         { DrawEllipse(pt.x, pt.y, sz.x, sz.y); }
 706     void DrawEllipse(const wxRect& rect)
 707         { DrawEllipse(rect.x, rect.y, rect.width, rect.height); }
 708
 709     void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
 710         {AddToList(new pdcDrawIconOp(icon,x,y));}
 711     void DrawIcon(const wxIcon& icon, const wxPoint& pt)
 712         { DrawIcon(icon, pt.x, pt.y); }
 713
 714     void DrawLines(int n, wxPoint points[],
 715                wxCoord xoffset = 0, wxCoord yoffset = 0)
 716         {AddToList(new pdcDrawLinesOp(n,points,xoffset,yoffset));}
 717
 718     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 719                     bool useMask = false)
 720         {AddToList(new pdcDrawBitmapOp(bmp,x,y,useMask));}
 721     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
 722                     bool useMask = false)
 723         { DrawBitmap(bmp, pt.x, pt.y, useMask); }
 724
 725     void DrawText(const wxString& text, wxCoord x, wxCoord y)
 726         {AddToList(new pdcDrawTextOp(text, x, y));}
 727     void DrawText(const wxString& text, const wxPoint& pt)
 728         { DrawText(text, pt.x, pt.y); }
 729
 730     void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
 731         {AddToList(new pdcDrawRotatedTextOp(text,x,y,angle));}
 732     void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
 733         { DrawRotatedText(text, pt.x, pt.y, angle); }
 734
 735     // this version puts both optional bitmap and the text into the given
 736     // rectangle and aligns is as specified by alignment parameter; it also
 737     // will emphasize the character with the given index if it is != -1
 738     void DrawLabel(const wxString& text,
 739                            const wxBitmap& image,
 740                            const wxRect& rect,
 741                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
 742                            int indexAccel = -1)
 743         {AddToList(new pdcDrawLabelOp(text,image,rect,alignment,indexAccel));}
 744
 745     void DrawLabel(const wxString& text, const wxRect& rect,
 746                    int alignment = wxALIGN_LEFT | wxALIGN_TOP,
 747                    int indexAccel = -1)
 748         { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
 749
 750 /*?????? I don't think that the source dc would stick around
 751     void Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 752               wxDC *source, wxCoord xsrc, wxCoord ysrc,
 753               int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)
 754                 {AddToList(new pdcBlitOp(xdest,ydest,width,height,source,xsrc,
 755                                          ysrc,rop,useMask,xsrcMask,ysrcMask));}
 756     void Blit(const wxPoint& destPt, const wxSize& sz,
 757               wxDC *source, const wxPoint& srcPt,
 758               int rop = wxCOPY, bool useMask = false, const wxPoint& srcPtMask = wxDefaultPosition)
 759     {
 760         Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y,
 761              rop, useMask, srcPtMask.x, srcPtMask.y);
 762     }
 763 ??????*/
 764
 765 #if wxUSE_SPLINES
 766     void DrawSpline(int n, wxPoint points[])
 767         {AddToList(new pdcDrawSplineOp(n,points));}
 768 #endif // wxUSE_SPLINES
 769
 770 #if wxUSE_PALETTE
 771     void SetPalette(const wxPalette& palette)
 772         {AddToList(new pdcSetPaletteOp(palette));}
 773 #endif // wxUSE_PALETTE
 774
 775     void SetLogicalFunction(int function)
 776         {AddToList(new pdcSetLogicalFunctionOp(function));}
 777     void SetFont(const wxFont& font)
 778         {AddToList(new pdcSetFontOp(font));}
 779     void SetPen(const wxPen& pen)
 780         {AddToList(new pdcSetPenOp(pen));}
 781     void SetBrush(const wxBrush& brush)
 782         {AddToList(new pdcSetBrushOp(brush));}
 783     void SetBackground(const wxBrush& brush)
 784         {AddToList(new pdcSetBackgroundOp(brush));}
 785     void SetBackgroundMode(int mode)
 786         {AddToList(new pdcSetBackgroundModeOp(mode));}
 787     void SetTextBackground(const wxColour& colour)
 788         {AddToList(new pdcSetTextBackgroundOp(colour));}
 789     void SetTextForeground(const wxColour& colour)
 790         {AddToList(new pdcSetTextForegroundOp(colour));}
 791
 792     void Clear()
 793         {AddToList(new pdcClearOp());}
 794     void BeginDrawing()
 795         {AddToList(new pdcBeginDrawingOp());}
 796     void EndDrawing()
 797         {AddToList(new pdcEndDrawingOp());}
 798
 799 protected:
 800     // ------------------------------------------------------------------------
 801     // protected helper methods
 802     void AddToList(pdcOp *newOp);
 803     pdcObjectList::Node *FindObjNode(int id, bool create=false);
 804
 805     // ------------------------------------------------------------------------
 806     // Data members
 807     //
 808     int m_currId; // id to use for operations done on the PseudoDC
 809     pdcObjectList::Node *m_lastObjNode; // used to find last used object quickly
 810     pdcObjectList m_objectlist; // list of objects
 811 };
 812
 813 #endif
 814