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[wxWidgets.git] / samples / drawing / drawing.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: drawing.cpp
3 // Purpose: shows and tests wxDC features
4 // Author: Robert Roebling
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Robert Roebling
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #ifdef __GNUG__
21 #pragma implementation "drawing.cpp"
22 #pragma interface "drawing.cpp"
23 #endif
24
25 // For compilers that support precompilation, includes "wx/wx.h".
26 #include "wx/wxprec.h"
27
28 #ifdef __BORLANDC__
29 #pragma hdrstop
30 #endif
31
32 // for all others, include the necessary headers (this file is usually all you
33 // need because it includes almost all "standard" wxWindows headers
34 #ifndef WX_PRECOMP
35 #include "wx/wx.h"
36 #endif
37
38 #include "wx/colordlg.h"
39 #include "wx/image.h"
40
41 // ----------------------------------------------------------------------------
42 // ressources
43 // ----------------------------------------------------------------------------
44
45 // the application icon
46 #if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__)
47 #include "mondrian.xpm"
48 #endif
49
50 // ----------------------------------------------------------------------------
51 // constants
52 // ----------------------------------------------------------------------------
53
54 // what do we show on screen (there are too many shapes to put them all on
55 // screen simultaneously)
56 enum ScreenToShow
57 {
58 Show_Default,
59 Show_Text,
60 Show_Lines,
61 Show_Polygons,
62 Show_Mask,
63 Show_Ops,
64 Show_Regions,
65 Show_Circles
66 };
67
68 // ----------------------------------------------------------------------------
69 // global variables
70 // ----------------------------------------------------------------------------
71
72 static wxBitmap *gs_bmpNoMask = NULL,
73 *gs_bmpWithColMask = NULL,
74 *gs_bmpMask = NULL,
75 *gs_bmpWithMask = NULL,
76 *gs_bmp4 = NULL,
77 *gs_bmp4_mono = NULL,
78 *gs_bmp36 = NULL;
79
80 // ----------------------------------------------------------------------------
81 // private classes
82 // ----------------------------------------------------------------------------
83
84 // Define a new application type, each program should derive a class from wxApp
85 class MyApp : public wxApp
86 {
87 public:
88 // override base class virtuals
89 // ----------------------------
90
91 // this one is called on application startup and is a good place for the app
92 // initialization (doing it here and not in the ctor allows to have an error
93 // return: if OnInit() returns false, the application terminates)
94 virtual bool OnInit();
95
96 virtual int OnExit() { DeleteBitmaps(); return 0; }
97
98 protected:
99 void DeleteBitmaps();
100
101 bool LoadImages();
102 };
103
104 class MyCanvas;
105
106 // Define a new frame type: this is going to be our main frame
107 class MyFrame : public wxFrame
108 {
109 public:
110 // ctor(s)
111 MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
112
113 // event handlers (these functions should _not_ be virtual)
114 void OnQuit(wxCommandEvent& event);
115 void OnAbout(wxCommandEvent& event);
116 void OnShow(wxCommandEvent &event);
117 void OnOption(wxCommandEvent &event);
118
119 wxColour SelectColour();
120 void PrepareDC(wxDC& dc);
121
122 int m_backgroundMode;
123 int m_textureBackground;
124 int m_mapMode;
125 double m_xUserScale;
126 double m_yUserScale;
127 int m_xLogicalOrigin;
128 int m_yLogicalOrigin;
129 bool m_xAxisReversed,
130 m_yAxisReversed;
131 wxColour m_colourForeground, // these are _text_ colours
132 m_colourBackground;
133 wxBrush m_backgroundBrush;
134 MyCanvas *m_canvas;
135
136 private:
137 // any class wishing to process wxWindows events must use this macro
138 DECLARE_EVENT_TABLE()
139 };
140
141 // define a scrollable canvas for drawing onto
142 class MyCanvas: public wxScrolledWindow
143 {
144 public:
145 MyCanvas( MyFrame *parent );
146
147 void OnPaint(wxPaintEvent &event);
148 void OnMouseMove(wxMouseEvent &event);
149
150 void Show(ScreenToShow show) { m_show = show; Refresh(); }
151
152 protected:
153 void DrawTestPoly( int x, int y, wxDC &dc ,int transparent );
154 void DrawTestLines( int x, int y, int width, wxDC &dc );
155 void DrawText(wxDC& dc);
156 void DrawImages(wxDC& dc);
157 void DrawWithLogicalOps(wxDC& dc);
158 void DrawRegions(wxDC& dc);
159 void DrawCircles(wxDC& dc);
160 void DrawDefault(wxDC& dc);
161
162 void DrawRegionsHelper(wxDC& dc, wxCoord x);
163
164 private:
165 MyFrame *m_owner;
166
167 ScreenToShow m_show;
168 wxBitmap m_smile_bmp;
169 wxIcon m_std_icon;
170
171 DECLARE_EVENT_TABLE()
172 };
173
174 // ----------------------------------------------------------------------------
175 // constants
176 // ----------------------------------------------------------------------------
177
178 // IDs for the controls and the menu commands
179 enum
180 {
181 // menu items
182 File_Quit = 1,
183 File_About,
184
185 MenuShow_First,
186 File_ShowDefault = MenuShow_First,
187 File_ShowText,
188 File_ShowLines,
189 File_ShowPolygons,
190 File_ShowMask,
191 File_ShowOps,
192 File_ShowRegions,
193 File_ShowCircles,
194 MenuShow_Last = File_ShowCircles,
195
196 MenuOption_First,
197
198 MapMode_Text = MenuOption_First,
199 MapMode_Lometric,
200 MapMode_Twips,
201 MapMode_Points,
202 MapMode_Metric,
203
204 UserScale_StretchHoriz,
205 UserScale_ShrinkHoriz,
206 UserScale_StretchVertic,
207 UserScale_ShrinkVertic,
208 UserScale_Restore,
209
210 AxisMirror_Horiz,
211 AxisMirror_Vertic,
212
213 LogicalOrigin_MoveDown,
214 LogicalOrigin_MoveUp,
215 LogicalOrigin_MoveLeft,
216 LogicalOrigin_MoveRight,
217
218 Colour_TextForeground,
219 Colour_TextBackground,
220 Colour_Background,
221 Colour_BackgroundMode,
222 Colour_TextureBackgound,
223
224 MenuOption_Last = Colour_TextureBackgound
225 };
226
227 // ----------------------------------------------------------------------------
228 // event tables and other macros for wxWindows
229 // ----------------------------------------------------------------------------
230
231
232 // Create a new application object: this macro will allow wxWindows to create
233 // the application object during program execution (it's better than using a
234 // static object for many reasons) and also declares the accessor function
235 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
236 // not wxApp)
237 IMPLEMENT_APP(MyApp)
238
239 // ============================================================================
240 // implementation
241 // ============================================================================
242
243 // ----------------------------------------------------------------------------
244 // the application class
245 // ----------------------------------------------------------------------------
246
247 bool MyApp::LoadImages()
248 {
249 gs_bmpNoMask = new wxBitmap;
250 gs_bmpWithColMask = new wxBitmap;
251 gs_bmpMask = new wxBitmap;
252 gs_bmpWithMask = new wxBitmap;
253 gs_bmp4 = new wxBitmap;
254 gs_bmp4_mono = new wxBitmap;
255 gs_bmp36 = new wxBitmap;
256
257 wxPathList pathList;
258 pathList.Add(".");
259 pathList.Add("..");
260
261 wxString path = pathList.FindValidPath("pat4.bmp");
262 if ( !path )
263 return FALSE;
264
265 /* 4 colour bitmap */
266 gs_bmp4->LoadFile(path, wxBITMAP_TYPE_BMP);
267 /* turn into mono-bitmap */
268 gs_bmp4_mono->LoadFile(path, wxBITMAP_TYPE_BMP);
269 wxMask* mask4 = new wxMask(*gs_bmp4_mono, *wxBLACK);
270 gs_bmp4_mono->SetMask(mask4);
271
272 path = pathList.FindValidPath("pat36.bmp");
273 if ( !path )
274 return FALSE;
275 gs_bmp36->LoadFile(path, wxBITMAP_TYPE_BMP);
276 wxMask* mask36 = new wxMask(*gs_bmp36, *wxBLACK);
277 gs_bmp36->SetMask(mask36);
278
279 path = pathList.FindValidPath("image.bmp");
280 if ( !path )
281 return FALSE;
282 gs_bmpNoMask->LoadFile(path, wxBITMAP_TYPE_BMP);
283 gs_bmpWithMask->LoadFile(path, wxBITMAP_TYPE_BMP);
284 gs_bmpWithColMask->LoadFile(path, wxBITMAP_TYPE_BMP);
285
286 path = pathList.FindValidPath("mask.bmp");
287 if ( !path )
288 return FALSE;
289 gs_bmpMask->LoadFile(path, wxBITMAP_TYPE_BMP);
290
291 wxMask *mask = new wxMask(*gs_bmpMask, *wxBLACK);
292 gs_bmpWithMask->SetMask(mask);
293
294 mask = new wxMask(*gs_bmpWithColMask, *wxWHITE);
295 gs_bmpWithColMask->SetMask(mask);
296
297 return TRUE;
298 }
299
300 // `Main program' equivalent: the program execution "starts" here
301 bool MyApp::OnInit()
302 {
303 // Create the main application window
304 MyFrame *frame = new MyFrame("Drawing sample",
305 wxPoint(50, 50), wxSize(550, 340));
306
307 // Show it and tell the application that it's our main window
308 frame->Show(TRUE);
309 SetTopWindow(frame);
310
311 if ( !LoadImages() )
312 {
313 wxLogError(wxT("Can't load one of the bitmap files needed ")
314 wxT("for this sample from the current or parent ")
315 wxT("directory, please copy them there."));
316
317 // stop here
318 DeleteBitmaps();
319
320 return FALSE;
321 }
322
323 // ok, continue
324 return TRUE;
325 }
326
327 void MyApp::DeleteBitmaps()
328 {
329 delete gs_bmpNoMask;
330 delete gs_bmpWithColMask;
331 delete gs_bmpMask;
332 delete gs_bmpWithMask;
333 delete gs_bmp4;
334 delete gs_bmp4_mono;
335 delete gs_bmp36;
336 }
337
338 // ----------------------------------------------------------------------------
339 // MyCanvas
340 // ----------------------------------------------------------------------------
341
342 // the event tables connect the wxWindows events with the functions (event
343 // handlers) which process them.
344 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
345 EVT_PAINT (MyCanvas::OnPaint)
346 EVT_MOTION (MyCanvas::OnMouseMove)
347 END_EVENT_TABLE()
348
349 #include "smile.xpm"
350
351 MyCanvas::MyCanvas(MyFrame *parent)
352 : wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize,
353 wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
354 {
355 m_owner = parent;
356 m_show = Show_Default;
357 m_smile_bmp = wxBitmap(smile_xpm);
358 m_std_icon = wxTheApp->GetStdIcon(wxICON_INFORMATION);
359 }
360
361 // Draw a polygon and an overlapping rectangle
362 // If transparent is 1, the fill pattern is made transparent.
363 // If transparent is 2, the fill pattern is made transparent but inversed
364 // If is transparent is 0 the text for and background color will be used to represent/map
365 // the colors of the monochrome bitmap pixels to the fillpattern
366 //
367 // I abused the the menu items for setting so called back and fore ground color
368 // just to show how the those colors do influence the fillpatterns just play
369 // with those, and with the code variations are endless using other logical
370 // functions.
371
372 void MyCanvas::DrawTestPoly( int x, int y,wxDC &dc,int transparent )
373 {
374 // wxBrush* brush4 = new wxBrush(*gs_bmp4);
375 wxBrush* brush4 = new wxBrush(*wxBLACK,wxFDIAGONAL_HATCH);
376 wxBrush* brush4_mono = new wxBrush(*gs_bmp4_mono);
377 wxBrush* brush36 = new wxBrush(*gs_bmp36);
378
379 wxPoint todraw[5];
380 todraw[0].x=(long)x+100;
381 todraw[0].y=(long)y+100;
382 todraw[1].x=(long)x+300;
383 todraw[1].y=(long)y+100;
384 todraw[2].x=(long)x+300;
385 todraw[2].y=(long)y+300;
386 todraw[3].x=(long)x+150;
387 todraw[3].y=(long)y+350;
388 todraw[4].x=(long)x+100;
389 todraw[4].y=(long)y+300;
390
391 wxPoint todraw2[5];
392 todraw2[0].x=100;
393 todraw2[0].y=100;
394 todraw2[1].x=300;
395 todraw2[1].y=100;
396 todraw2[2].x=300;
397 todraw2[2].y=300;
398 todraw2[3].x=150;
399 todraw2[3].y=350;
400 todraw2[4].x=100;
401 todraw2[4].y=300;
402
403 switch (transparent)
404 {
405 case 0:
406 {
407 dc.SetLogicalFunction(wxCOPY);
408
409 dc.SetPen( wxPen( wxT("black"), 4, wxSOLID) );
410 dc.SetBrush( *brush4 );
411 dc.DrawPolygon(5,todraw,0,0,wxWINDING_RULE);
412
413 dc.SetPen( wxPen( wxT("red"), 4, wxSOLID) );
414 dc.SetBrush( *brush36 );
415 dc.SetTextForeground(*wxCYAN);
416 dc.SetTextBackground(m_owner->m_colourBackground);
417 dc.DrawRectangle( x+10, y+10, 200, 200 );
418
419 dc.SetPen( wxPen( wxT("green"), 4, wxSOLID) );
420 dc.SetBrush( *brush4_mono );
421 dc.SetTextForeground(*wxCYAN);
422 dc.SetTextBackground(m_owner->m_colourBackground);
423 dc.DrawRectangle( x+50, y+50, 200, 200 );
424
425 dc.DrawCircle( x+400, y+50, 130 );
426
427 dc.SetBrush(wxNullBrush);
428 dc.SetPen(wxNullPen);
429 break;
430 }
431 case 1: //now with transparent fillpatterns
432 {
433
434 wxBitmap* bmpBlit = new wxBitmap(600,400);
435 wxMemoryDC* memDC= new wxMemoryDC();
436 // wxBrush _clearbrush(*wxGREEN,wxSOLID);
437 wxBrush _clearbrush(*wxBLACK,wxSOLID);
438 memDC->SelectObject(*bmpBlit);
439 memDC->BeginDrawing();
440 memDC->SetBackground(_clearbrush);
441 memDC->Clear();
442 memDC->SetBackground(wxNullBrush);
443
444 memDC->SetPen( wxPen( wxT("black"), 4, wxSOLID) );
445 memDC->SetBrush( wxNullBrush);
446 memDC->SetBrush( *brush4 );
447 memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
448 memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white)
449 memDC->SetLogicalFunction(wxAND_INVERT);
450
451 // BLACK OUT the opaque pixels and leave the rest as is
452 memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
453
454 // Set background and foreground colors for fill pattern
455 //the previous blacked out pixels are now merged with the layer color
456 //while the non blacked out pixels stay as they are.
457 memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
458
459 //now define what will be the color of the fillpattern parts that are not transparent
460 // memDC->SetTextBackground(*wxBLUE);
461 memDC->SetTextBackground(m_owner->m_colourForeground);
462 memDC->SetLogicalFunction(wxOR);
463
464
465 //don't understand how but the outline is also depending on logicalfunction
466 memDC->SetPen( wxPen( wxT("red"), 4, wxSOLID) );
467 memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
468
469 memDC->SetLogicalFunction(wxCOPY);
470
471 memDC->SetPen( wxPen( wxT("black"), 4, wxSOLID) );
472 memDC->SetBrush( wxNullBrush);
473 memDC->SetBrush( *brush36 );
474 memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
475 memDC->SetTextBackground(*wxWHITE); // 1s --> 0xFFFFFF (white)
476 memDC->SetLogicalFunction(wxAND_INVERT);
477
478 memDC->DrawRectangle( 10, 10, 200, 200 );
479
480 // Set background and foreground colors for fill pattern
481 //the previous blacked out pixels are now merged with the layer color
482 //while the non blacked out pixels stay as they are.
483 memDC->SetTextForeground(*wxBLACK); // 0s --> 0x000000 (black)
484 //now define what will be the color of the fillpattern parts that are not transparent
485 // memDC->SetTextBackground(*wxRED);
486 memDC->SetTextBackground(m_owner->m_colourBackground);
487 memDC->SetLogicalFunction(wxOR);
488
489 //don't understand how but the outline is also depending on logicalfunction
490 memDC->SetPen( wxPen( wxT("yellow"), 4, wxSOLID) );
491 memDC->DrawRectangle( 10, 10, 200, 200 );
492
493 memDC->SetBrush(wxNullBrush);
494 memDC->SetPen(wxNullPen);
495
496 memDC->EndDrawing();
497 dc.Blit(x,y,600,400,memDC,0,0,wxCOPY);
498 delete bmpBlit;
499 delete memDC;
500 break;
501 }
502 case 2: //now with transparent inversed fillpatterns
503 {
504 wxBitmap* bmpBlit = new wxBitmap(600,400);
505 wxMemoryDC* memDC= new wxMemoryDC();
506 wxBrush _clearbrush(*wxWHITE,wxSOLID);
507 memDC->SelectObject(*bmpBlit);
508 memDC->BeginDrawing();
509 memDC->SetBackground(_clearbrush);
510 memDC->Clear();
511 memDC->SetBackground(wxNullBrush);
512
513 memDC->SetPen( wxPen( wxT("black"), 4, wxSOLID) );
514 memDC->SetBrush( *brush4 );
515 memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
516 memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white)
517 memDC->SetLogicalFunction(wxAND_INVERT);
518
519 // BLACK OUT the opaque pixels and leave the rest as is
520 memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
521
522 // Set background and foreground colors for fill pattern
523 //the previous blacked out pixels are now merged with the layer color
524 //while the non blacked out pixels stay as they are.
525 memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
526
527 //now define what will be the color of the fillpattern parts that are not transparent
528 memDC->SetTextForeground(m_owner->m_colourForeground);
529 memDC->SetLogicalFunction(wxOR);
530
531
532 //don't understand how but the outline is also depending on logicalfunction
533 memDC->SetPen( wxPen( wxT("red"), 4, wxSOLID) );
534 memDC->DrawPolygon(5,todraw2,0,0,wxWINDING_RULE);
535
536 memDC->SetLogicalFunction(wxCOPY);
537
538 memDC->SetPen( wxPen( wxT("black"), 4, wxSOLID) );
539 memDC->SetBrush( *brush36 );
540 memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
541 memDC->SetTextForeground(*wxWHITE); // 1s --> 0xFFFFFF (white)
542 memDC->SetLogicalFunction(wxAND_INVERT);
543
544 memDC->DrawRectangle( 10,10, 200, 200 );
545
546 // Set background and foreground colors for fill pattern
547 //the previous blacked out pixels are now merged with the layer color
548 //while the non blacked out pixels stay as they are.
549 memDC->SetTextBackground(*wxBLACK); // 0s --> 0x000000 (black)
550 //now define what will be the color of the fillpattern parts that are not transparent
551 memDC->SetTextForeground(m_owner->m_colourBackground);
552 memDC->SetLogicalFunction(wxOR);
553
554 //don't understand how but the outline is also depending on logicalfunction
555 memDC->SetPen( wxPen( wxT("yellow"), 4, wxSOLID) );
556 memDC->DrawRectangle( 10, 10, 200, 200 );
557
558 memDC->SetBrush(wxNullBrush);
559 memDC->SetPen(wxNullPen);
560 dc.Blit(x,y,600,400,memDC,0,0,wxCOPY);
561 delete bmpBlit;
562 delete memDC;
563 }
564 }
565
566 delete brush4;
567 delete brush4_mono;
568 delete brush36;
569 }
570
571 void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )
572 {
573 dc.SetPen( wxPen( wxT("black"), width, wxSOLID) );
574 dc.SetBrush( *wxRED_BRUSH );
575 dc.DrawText(wxString::Format(wxT("Testing lines of width %d"), width), x + 10, y - 10);
576 dc.DrawRectangle( x+10, y+10, 100, 190 );
577
578 dc.DrawText("Solid/dot/short dash/long dash/dot dash", x + 150, y + 10);
579 dc.SetPen( wxPen( wxT("black"), width, wxSOLID) );
580 dc.DrawLine( x+20, y+20, 100, y+20 );
581 dc.SetPen( wxPen( wxT("black"), width, wxDOT) );
582 dc.DrawLine( x+20, y+30, 100, y+30 );
583 dc.SetPen( wxPen( wxT("black"), width, wxSHORT_DASH) );
584 dc.DrawLine( x+20, y+40, 100, y+40 );
585 dc.SetPen( wxPen( wxT("black"), width, wxLONG_DASH) );
586 dc.DrawLine( x+20, y+50, 100, y+50 );
587 dc.SetPen( wxPen( wxT("black"), width, wxDOT_DASH) );
588 dc.DrawLine( x+20, y+60, 100, y+60 );
589
590 dc.DrawText("Misc hatches", x + 150, y + 70);
591 dc.SetPen( wxPen( wxT("black"), width, wxBDIAGONAL_HATCH) );
592 dc.DrawLine( x+20, y+70, 100, y+70 );
593 dc.SetPen( wxPen( wxT("black"), width, wxCROSSDIAG_HATCH) );
594 dc.DrawLine( x+20, y+80, 100, y+80 );
595 dc.SetPen( wxPen( wxT("black"), width, wxFDIAGONAL_HATCH) );
596 dc.DrawLine( x+20, y+90, 100, y+90 );
597 dc.SetPen( wxPen( wxT("black"), width, wxCROSS_HATCH) );
598 dc.DrawLine( x+20, y+100, 100, y+100 );
599 dc.SetPen( wxPen( wxT("black"), width, wxHORIZONTAL_HATCH) );
600 dc.DrawLine( x+20, y+110, 100, y+110 );
601 dc.SetPen( wxPen( wxT("black"), width, wxVERTICAL_HATCH) );
602 dc.DrawLine( x+20, y+120, 100, y+120 );
603
604 dc.DrawText("User dash", x + 150, y + 140);
605 wxPen ud( wxT("black"), width, wxUSER_DASH );
606 wxDash dash1[1];
607 dash1[0] = 0;
608 ud.SetDashes( 1, dash1 );
609 dc.DrawLine( x+20, y+140, 100, y+140 );
610 dash1[0] = 1;
611 ud.SetDashes( 1, dash1 );
612 dc.DrawLine( x+20, y+150, 100, y+150 );
613 dash1[0] = 2;
614 ud.SetDashes( 1, dash1 );
615 dc.DrawLine( x+20, y+160, 100, y+160 );
616 dash1[0] = 0x7F;
617 ud.SetDashes( 1, dash1 );
618 dc.DrawLine( x+20, y+170, 100, y+170 );
619 }
620
621 void MyCanvas::DrawDefault(wxDC& dc)
622 {
623 // mark the origin
624 dc.DrawCircle(0, 0, 10);
625 #if !(defined __WXGTK__) && !(defined __WXMOTIF__) && !(defined __WXMGL__)
626 // not implemented in wxGTK or wxMOTIF :-(
627 dc.FloodFill(0, 0, wxColour(255, 0, 0));
628 #endif //
629
630 dc.DrawCheckMark(5, 80, 15, 15);
631 dc.DrawCheckMark(25, 80, 30, 30);
632 dc.DrawCheckMark(60, 80, 60, 60);
633
634 // this is the test for "blitting bitmap into DC damages selected brush" bug
635 wxCoord rectSize = m_std_icon.GetWidth() + 10;
636 wxCoord x = 100;
637 dc.SetPen(*wxTRANSPARENT_PEN);
638 dc.SetBrush( *wxGREEN_BRUSH );
639 dc.DrawRectangle(x, 10, rectSize, rectSize);
640 dc.DrawBitmap(m_std_icon, x + 5, 15, TRUE);
641 x += rectSize + 10;
642 dc.DrawRectangle(x, 10, rectSize, rectSize);
643 dc.DrawIcon(m_std_icon, x + 5, 15);
644 x += rectSize + 10;
645 dc.DrawRectangle(x, 10, rectSize, rectSize);
646
647 // test for "transparent" bitmap drawing (it intersects with the last
648 // rectangle above)
649 //dc.SetBrush( *wxTRANSPARENT_BRUSH );
650
651 if (m_smile_bmp.Ok())
652 dc.DrawBitmap(m_smile_bmp, x + rectSize - 20, rectSize - 10, TRUE);
653
654 dc.SetBrush( *wxBLACK_BRUSH );
655 dc.DrawRectangle( 0, 160, 1000, 300 );
656
657 // draw lines
658 wxBitmap bitmap(20,70);
659 wxMemoryDC memdc;
660 memdc.SelectObject( bitmap );
661 memdc.SetBrush( *wxBLACK_BRUSH );
662 memdc.SetPen( *wxWHITE_PEN );
663 memdc.DrawRectangle(0,0,20,70);
664 memdc.DrawLine( 10,0,10,70 );
665
666 // to the right
667 wxPen pen = *wxRED_PEN;
668 memdc.SetPen(pen);
669 memdc.DrawLine( 10, 5,10, 5 );
670 memdc.DrawLine( 10,10,11,10 );
671 memdc.DrawLine( 10,15,12,15 );
672 memdc.DrawLine( 10,20,13,20 );
673
674 /*
675 memdc.SetPen(*wxRED_PEN);
676 memdc.DrawLine( 12, 5,12, 5 );
677 memdc.DrawLine( 12,10,13,10 );
678 memdc.DrawLine( 12,15,14,15 );
679 memdc.DrawLine( 12,20,15,20 );
680 */
681
682 // same to the left
683 memdc.DrawLine( 10,25,10,25 );
684 memdc.DrawLine( 10,30, 9,30 );
685 memdc.DrawLine( 10,35, 8,35 );
686 memdc.DrawLine( 10,40, 7,40 );
687
688 // XOR draw lines
689 dc.SetPen(*wxWHITE_PEN);
690 memdc.SetLogicalFunction( wxINVERT );
691 memdc.SetPen( *wxWHITE_PEN );
692 memdc.DrawLine( 10,50,10,50 );
693 memdc.DrawLine( 10,55,11,55 );
694 memdc.DrawLine( 10,60,12,60 );
695 memdc.DrawLine( 10,65,13,65 );
696
697 memdc.DrawLine( 12,50,12,50 );
698 memdc.DrawLine( 12,55,13,55 );
699 memdc.DrawLine( 12,60,14,60 );
700 memdc.DrawLine( 12,65,15,65 );
701
702 memdc.SelectObject( wxNullBitmap );
703 dc.DrawBitmap( bitmap, 10, 170 );
704 wxImage image( bitmap );
705 image.Rescale( 60,210 );
706 bitmap = image.ConvertToBitmap();
707 dc.DrawBitmap( bitmap, 50, 170 );
708
709 // test the rectangle outline drawing - there should be one pixel between
710 // the rect and the lines
711 dc.SetPen(*wxWHITE_PEN);
712 dc.SetBrush( *wxTRANSPARENT_BRUSH );
713 dc.DrawRectangle(150, 170, 49, 29);
714 dc.DrawRectangle(200, 170, 49, 29);
715 dc.SetPen(*wxWHITE_PEN);
716 dc.DrawLine(250, 210, 250, 170);
717 dc.DrawLine(260, 200, 150, 200);
718
719 // test the rectangle filled drawing - there should be one pixel between
720 // the rect and the lines
721 dc.SetPen(*wxTRANSPARENT_PEN);
722 dc.SetBrush( *wxWHITE_BRUSH );
723 dc.DrawRectangle(300, 170, 49, 29);
724 dc.DrawRectangle(350, 170, 49, 29);
725 dc.SetPen(*wxWHITE_PEN);
726 dc.DrawLine(400, 170, 400, 210);
727 dc.DrawLine(300, 200, 410, 200);
728
729 // a few more tests of this kind
730 dc.SetPen(*wxRED_PEN);
731 dc.SetBrush( *wxWHITE_BRUSH );
732 dc.DrawRectangle(300, 220, 1, 1);
733 dc.DrawRectangle(310, 220, 2, 2);
734 dc.DrawRectangle(320, 220, 3, 3);
735 dc.DrawRectangle(330, 220, 4, 4);
736
737 dc.SetPen(*wxTRANSPARENT_PEN);
738 dc.SetBrush( *wxWHITE_BRUSH );
739 dc.DrawRectangle(300, 230, 1, 1);
740 dc.DrawRectangle(310, 230, 2, 2);
741 dc.DrawRectangle(320, 230, 3, 3);
742 dc.DrawRectangle(330, 230, 4, 4);
743
744 // and now for filled rect with outline
745 dc.SetPen(*wxRED_PEN);
746 dc.SetBrush( *wxWHITE_BRUSH );
747 dc.DrawRectangle(500, 170, 49, 29);
748 dc.DrawRectangle(550, 170, 49, 29);
749 dc.SetPen(*wxWHITE_PEN);
750 dc.DrawLine(600, 170, 600, 210);
751 dc.DrawLine(500, 200, 610, 200);
752
753 // test the rectangle outline drawing - there should be one pixel between
754 // the rect and the lines
755 dc.SetPen(*wxWHITE_PEN);
756 dc.SetBrush( *wxTRANSPARENT_BRUSH );
757 dc.DrawRoundedRectangle(150, 270, 49, 29, 6);
758 dc.DrawRoundedRectangle(200, 270, 49, 29, 6);
759 dc.SetPen(*wxWHITE_PEN);
760 dc.DrawLine(250, 270, 250, 310);
761 dc.DrawLine(150, 300, 260, 300);
762
763 // test the rectangle filled drawing - there should be one pixel between
764 // the rect and the lines
765 dc.SetPen(*wxTRANSPARENT_PEN);
766 dc.SetBrush( *wxWHITE_BRUSH );
767 dc.DrawRoundedRectangle(300, 270, 49, 29, 6);
768 dc.DrawRoundedRectangle(350, 270, 49, 29, 6);
769 dc.SetPen(*wxWHITE_PEN);
770 dc.DrawLine(400, 270, 400, 310);
771 dc.DrawLine(300, 300, 410, 300);
772
773 // Added by JACS to demonstrate bizarre behaviour.
774 // With a size of 70, we get a missing red RHS,
775 // and the hight is too small, so we get yellow
776 // showing. With a size of 40, it draws as expected:
777 // it just shows a white rectangle with red outline.
778 int totalWidth = 70;
779 int totalHeight = 70;
780 wxBitmap bitmap2(totalWidth, totalHeight);
781
782 wxMemoryDC memdc2;
783 memdc2.SelectObject(bitmap2);
784
785 wxBrush yellowBrush(wxColour(255, 255, 0), wxSOLID);
786 memdc2.SetBackground(yellowBrush);
787 memdc2.Clear();
788
789 wxPen yellowPen(wxColour(255, 255, 0), 1, wxSOLID);
790
791 // Now draw a white rectangle with red outline. It should
792 // entirely eclipse the yellow background.
793 memdc2.SetPen(*wxRED_PEN);
794 memdc2.SetBrush(*wxWHITE_BRUSH);
795
796 memdc2.DrawRectangle(0, 0, totalWidth, totalHeight);
797
798 memdc2.SetPen(wxNullPen);
799 memdc2.SetBrush(wxNullBrush);
800 memdc2.SelectObject(wxNullBitmap);
801
802 dc.DrawBitmap(bitmap2, 500, 270);
803
804 // Repeat, but draw directly on dc
805 // Draw a yellow rectangle filling the bitmap
806
807 x = 600; int y = 270;
808 dc.SetPen(yellowPen);
809 dc.SetBrush(yellowBrush);
810 dc.DrawRectangle(x, y, totalWidth, totalHeight);
811
812 // Now draw a white rectangle with red outline. It should
813 // entirely eclipse the yellow background.
814 dc.SetPen(*wxRED_PEN);
815 dc.SetBrush(*wxWHITE_BRUSH);
816
817 dc.DrawRectangle(x, y, totalWidth, totalHeight);
818 }
819
820 void MyCanvas::DrawText(wxDC& dc)
821 {
822 // set underlined font for testing
823 dc.SetFont( wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, TRUE) );
824 dc.DrawText( "This is text", 110, 10 );
825 dc.DrawRotatedText( "That is text", 20, 10, -45 );
826
827 // use wxSWISS_FONT and not wxNORMAL_FONT as the latter can't be rotated
828 // under Win9x (it is not TrueType)
829 dc.SetFont( *wxSWISS_FONT );
830
831 wxString text;
832 dc.SetBackgroundMode(wxTRANSPARENT);
833
834 for ( int n = -180; n < 180; n += 30 )
835 {
836 text.Printf(wxT(" %d rotated text"), n);
837 dc.DrawRotatedText(text , 400, 400, n);
838 }
839
840 dc.SetFont( wxFont( 18, wxSWISS, wxNORMAL, wxNORMAL ) );
841
842 dc.DrawText( "This is Swiss 18pt text.", 110, 40 );
843
844 long length;
845 long height;
846 long descent;
847 dc.GetTextExtent( "This is Swiss 18pt text.", &length, &height, &descent );
848 text.Printf( wxT("Dimensions are length %ld, height %ld, descent %ld"), length, height, descent );
849 dc.DrawText( text, 110, 80 );
850
851 text.Printf( wxT("CharHeight() returns: %d"), dc.GetCharHeight() );
852 dc.DrawText( text, 110, 120 );
853
854 dc.DrawRectangle( 100, 40, 4, height );
855
856 // test the logical function effect
857 wxCoord y = 150;
858 dc.SetLogicalFunction(wxINVERT);
859 dc.DrawText( "There should be no text below", 110, 150 );
860 dc.DrawRectangle( 110, y, 100, height );
861
862 // twice drawn inverted should result in invisible
863 y += height;
864 dc.DrawText( "Invisible text", 110, y );
865 dc.DrawRectangle( 110, y, 100, height );
866 dc.DrawText( "Invisible text", 110, y );
867 dc.DrawRectangle( 110, y, 100, height );
868 dc.SetLogicalFunction(wxCOPY);
869
870 y += height;
871 dc.DrawRectangle( 110, y, 100, height );
872 dc.DrawText( "Visible text", 110, y );
873 }
874
875 static const struct
876 {
877 const wxChar *name;
878 int rop;
879 } rasterOperations[] =
880 {
881 { wxT("wxAND"), wxAND },
882 { wxT("wxAND_INVERT"), wxAND_INVERT },
883 { wxT("wxAND_REVERSE"), wxAND_REVERSE },
884 { wxT("wxCLEAR"), wxCLEAR },
885 { wxT("wxCOPY"), wxCOPY },
886 { wxT("wxEQUIV"), wxEQUIV },
887 { wxT("wxINVERT"), wxINVERT },
888 { wxT("wxNAND"), wxNAND },
889 { wxT("wxNO_OP"), wxNO_OP },
890 { wxT("wxOR"), wxOR },
891 { wxT("wxOR_INVERT"), wxOR_INVERT },
892 { wxT("wxOR_REVERSE"), wxOR_REVERSE },
893 { wxT("wxSET"), wxSET },
894 { wxT("wxSRC_INVERT"), wxSRC_INVERT },
895 { wxT("wxXOR"), wxXOR },
896 };
897
898 void MyCanvas::DrawImages(wxDC& dc)
899 {
900 dc.DrawText("original image", 0, 0);
901 dc.DrawBitmap(*gs_bmpNoMask, 0, 20, 0);
902 dc.DrawText("with colour mask", 0, 100);
903 dc.DrawBitmap(*gs_bmpWithColMask, 0, 120, TRUE);
904 dc.DrawText("the mask image", 0, 200);
905 dc.DrawBitmap(*gs_bmpMask, 0, 220, 0);
906 dc.DrawText("masked image", 0, 300);
907 dc.DrawBitmap(*gs_bmpWithMask, 0, 320, TRUE);
908
909 int cx = gs_bmpWithColMask->GetWidth(),
910 cy = gs_bmpWithColMask->GetHeight();
911
912 wxMemoryDC memDC;
913 for ( size_t n = 0; n < WXSIZEOF(rasterOperations); n++ )
914 {
915 wxCoord x = 120 + 150*(n%4),
916 y = 20 + 100*(n/4);
917
918 dc.DrawText(rasterOperations[n].name, x, y - 20);
919 memDC.SelectObject(*gs_bmpWithColMask);
920 dc.Blit(x, y, cx, cy, &memDC, 0, 0, rasterOperations[n].rop, TRUE);
921 }
922 }
923
924 void MyCanvas::DrawWithLogicalOps(wxDC& dc)
925 {
926 static const wxCoord w = 60;
927 static const wxCoord h = 60;
928
929 // reuse the text colour here
930 dc.SetPen(wxPen(m_owner->m_colourForeground, 1, wxSOLID));
931 dc.SetBrush(*wxTRANSPARENT_BRUSH);
932
933 size_t n;
934 for ( n = 0; n < WXSIZEOF(rasterOperations); n++ )
935 {
936 wxCoord x = 20 + 150*(n%4),
937 y = 20 + 100*(n/4);
938
939 dc.DrawText(rasterOperations[n].name, x, y - 20);
940 dc.SetLogicalFunction(rasterOperations[n].rop);
941 dc.DrawRectangle(x, y, w, h);
942 dc.DrawLine(x, y, x + w, y + h);
943 dc.DrawLine(x + w, y, x, y + h);
944 }
945
946 // now some filled rectangles
947 dc.SetBrush(wxBrush(m_owner->m_colourForeground, wxSOLID));
948
949 for ( n = 0; n < WXSIZEOF(rasterOperations); n++ )
950 {
951 wxCoord x = 20 + 150*(n%4),
952 y = 500 + 100*(n/4);
953
954 dc.DrawText(rasterOperations[n].name, x, y - 20);
955 dc.SetLogicalFunction(rasterOperations[n].rop);
956 dc.DrawRectangle(x, y, w, h);
957 }
958 }
959
960 void MyCanvas::DrawCircles(wxDC& dc)
961 {
962 int x = 100,
963 y = 100,
964 r = 20;
965
966 dc.DrawText("Some circles", 0, y);
967 dc.DrawCircle(x, y, r);
968 dc.DrawCircle(x + 2*r, y, r);
969 dc.DrawCircle(x + 4*r, y, r);
970
971 y += 2*r;
972 dc.DrawText("And ellipses", 0, y);
973 dc.DrawEllipse(x - r, y, 2*r, r);
974 dc.DrawEllipse(x + r, y, 2*r, r);
975 dc.DrawEllipse(x + 3*r, y, 2*r, r);
976
977 y += 2*r;
978 dc.DrawText("And arcs", 0, y);
979 dc.DrawArc(x - r, y, x + r, y, x, y);
980 dc.DrawArc(x + 4*r, y, x + 2*r, y, x + 3*r, y);
981 dc.DrawArc(x + 5*r, y, x + 5*r, y, x + 6*r, y);
982
983 y += 2*r;
984 dc.DrawEllipticArc(x - r, y, 2*r, r, 0, 90);
985 dc.DrawEllipticArc(x + r, y, 2*r, r, 90, 180);
986 dc.DrawEllipticArc(x + 3*r, y, 2*r, r, 180, 270);
987 dc.DrawEllipticArc(x + 5*r, y, 2*r, r, 270, 360);
988 }
989
990 void MyCanvas::DrawRegions(wxDC& dc)
991 {
992 dc.DrawText("You should see a red rect partly covered by a cyan one "
993 "on the left", 10, 5);
994 dc.DrawText("and 5 smileys from which 4 are partially clipped on the "
995 "right (2 copies should be identical)",
996 10, 5 + dc.GetCharHeight());
997
998 DrawRegionsHelper(dc, 10);
999 DrawRegionsHelper(dc, 350);
1000 }
1001
1002 void MyCanvas::DrawRegionsHelper(wxDC& dc, wxCoord x)
1003 {
1004 dc.DestroyClippingRegion();
1005 dc.SetBrush( *wxWHITE_BRUSH );
1006 dc.SetPen( *wxTRANSPARENT_PEN );
1007 dc.DrawRectangle( x,50,310,310 );
1008
1009 dc.SetClippingRegion( x+10,60,100,270 );
1010
1011 dc.SetBrush( *wxRED_BRUSH );
1012 dc.DrawRectangle( x,50,310,310 );
1013
1014 dc.SetClippingRegion( x+10,60,100,100 );
1015
1016 dc.SetBrush( *wxCYAN_BRUSH );
1017 dc.DrawRectangle( x,50,310,310 );
1018
1019 // when drawing the left half, destroy the clipping region, when drawing
1020 // the right one - leave it
1021 //
1022 // normally it shouldn't make any difference as SetClippingRegion()
1023 // replaces the old clipping region
1024 if ( x < 300 )
1025 dc.DestroyClippingRegion();
1026 dc.SetClippingRegion( x+110,70,100,270 );
1027
1028 dc.SetBrush( *wxGREY_BRUSH );
1029 dc.DrawRectangle( x,50,310,310 );
1030
1031 if (m_smile_bmp.Ok())
1032 {
1033 dc.DrawBitmap( m_smile_bmp, x+150, 200, TRUE );
1034 dc.DrawBitmap( m_smile_bmp, x+130, 60, TRUE );
1035 dc.DrawBitmap( m_smile_bmp, x+130, 330, TRUE );
1036 dc.DrawBitmap( m_smile_bmp, x+100, 120, TRUE );
1037 dc.DrawBitmap( m_smile_bmp, x+200, 120, TRUE );
1038 }
1039 }
1040
1041 void MyCanvas::OnPaint(wxPaintEvent &WXUNUSED(event))
1042 {
1043 wxPaintDC dc(this);
1044 PrepareDC(dc);
1045
1046 m_owner->PrepareDC(dc);
1047
1048 dc.SetBackgroundMode( m_owner->m_backgroundMode );
1049 if ( m_owner->m_backgroundBrush.Ok() )
1050 dc.SetBackground( m_owner->m_backgroundBrush );
1051 if ( m_owner->m_colourForeground.Ok() )
1052 dc.SetTextForeground( m_owner->m_colourForeground );
1053 if ( m_owner->m_colourBackground.Ok() )
1054 dc.SetTextBackground( m_owner->m_colourBackground );
1055
1056 if ( m_owner->m_textureBackground) {
1057 if ( ! m_owner->m_backgroundBrush.Ok() ) {
1058 wxBrush b(wxColour(0,128,0), wxSOLID);
1059 dc.SetBackground(b);
1060 }
1061 }
1062
1063 dc.Clear();
1064
1065 if ( m_owner->m_textureBackground) {
1066 dc.SetPen(*wxMEDIUM_GREY_PEN);
1067 for (int i=0; i<200; i++)
1068 dc.DrawLine(0, i*10, i*10, 0);
1069 }
1070
1071 switch ( m_show )
1072 {
1073 case Show_Default:
1074 DrawDefault(dc);
1075 break;
1076
1077 case Show_Circles:
1078 DrawCircles(dc);
1079 break;
1080
1081 case Show_Regions:
1082 DrawRegions(dc);
1083 break;
1084
1085 case Show_Text:
1086 DrawText(dc);
1087 break;
1088
1089 case Show_Lines:
1090 DrawTestLines( 0, 100, 0, dc );
1091 DrawTestLines( 0, 320, 1, dc );
1092 DrawTestLines( 0, 540, 2, dc );
1093 DrawTestLines( 0, 760, 6, dc );
1094 break;
1095
1096 case Show_Polygons:
1097 DrawTestPoly( 0, 100, dc, 0 );
1098 /*
1099 DrawTestPoly( 33, 500, dc, 1 );
1100 DrawTestPoly( 43, 1000, dc, 2 );
1101 */
1102 break;
1103
1104 case Show_Mask:
1105 DrawImages(dc);
1106 break;
1107
1108 case Show_Ops:
1109 DrawWithLogicalOps(dc);
1110 break;
1111
1112 default:
1113 {
1114 dc.SetPen( *wxBLACK_PEN );
1115 dc.DrawLine( 0,0,100,100 );
1116 }
1117
1118 }
1119 }
1120
1121 void MyCanvas::OnMouseMove(wxMouseEvent &event)
1122 {
1123 wxClientDC dc(this);
1124 PrepareDC(dc);
1125 m_owner->PrepareDC(dc);
1126
1127 wxPoint pos = event.GetPosition();
1128 long x = dc.DeviceToLogicalX( pos.x );
1129 long y = dc.DeviceToLogicalY( pos.y );
1130 wxString str;
1131 str.Printf( wxT("Current mouse position: %d,%d"), (int)x, (int)y );
1132 m_owner->SetStatusText( str );
1133 }
1134
1135 // ----------------------------------------------------------------------------
1136 // MyFrame
1137 // ----------------------------------------------------------------------------
1138
1139 // the event tables connect the wxWindows events with the functions (event
1140 // handlers) which process them. It can be also done at run-time, but for the
1141 // simple menu events like this the static method is much simpler.
1142 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
1143 EVT_MENU (File_Quit, MyFrame::OnQuit)
1144 EVT_MENU (File_About, MyFrame::OnAbout)
1145
1146 EVT_MENU_RANGE(MenuShow_First, MenuShow_Last, MyFrame::OnShow)
1147
1148 EVT_MENU_RANGE(MenuOption_First, MenuOption_Last, MyFrame::OnOption)
1149 END_EVENT_TABLE()
1150
1151 // frame constructor
1152 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
1153 : wxFrame((wxFrame *)NULL, -1, title, pos, size,
1154 wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
1155 {
1156 // set the frame icon
1157 SetIcon(wxICON(mondrian));
1158
1159 wxMenu *menuFile = new wxMenu;
1160 menuFile->Append(File_ShowDefault, "&Default screen\tF1");
1161 menuFile->Append(File_ShowText, "&Text screen\tF2");
1162 menuFile->Append(File_ShowLines, "&Lines screen\tF3");
1163 menuFile->Append(File_ShowPolygons, "&Polygons screen\tF4");
1164 menuFile->Append(File_ShowMask, "wx&Mask screen\tF5");
1165 menuFile->Append(File_ShowOps, "&ROP screen\tF6");
1166 menuFile->Append(File_ShowRegions, "Re&gions screen\tF7");
1167 menuFile->Append(File_ShowCircles, "&Circles screen\tF8");
1168 menuFile->AppendSeparator();
1169 menuFile->Append(File_About, "&About...\tCtrl-A", "Show about dialog");
1170 menuFile->AppendSeparator();
1171 menuFile->Append(File_Quit, "E&xit\tAlt-X", "Quit this program");
1172
1173 wxMenu *menuMapMode = new wxMenu;
1174 menuMapMode->Append( MapMode_Text, "&TEXT map mode" );
1175 menuMapMode->Append( MapMode_Lometric, "&LOMETRIC map mode" );
1176 menuMapMode->Append( MapMode_Twips, "T&WIPS map mode" );
1177 menuMapMode->Append( MapMode_Points, "&POINTS map mode" );
1178 menuMapMode->Append( MapMode_Metric, "&METRIC map mode" );
1179
1180 wxMenu *menuUserScale = new wxMenu;
1181 menuUserScale->Append( UserScale_StretchHoriz, "Stretch horizontally\tCtrl-H" );
1182 menuUserScale->Append( UserScale_ShrinkHoriz, "Shrink horizontally\tCtrl-G" );
1183 menuUserScale->Append( UserScale_StretchVertic, "Stretch vertically\tCtrl-V" );
1184 menuUserScale->Append( UserScale_ShrinkVertic, "Shrink vertically\tCtrl-W" );
1185 menuUserScale->AppendSeparator();
1186 menuUserScale->Append( UserScale_Restore, "Restore to normal\tCtrl-0" );
1187
1188 wxMenu *menuAxis = new wxMenu;
1189 menuAxis->Append( AxisMirror_Horiz, "Mirror horizontally\tCtrl-M", "", TRUE );
1190 menuAxis->Append( AxisMirror_Vertic, "Mirror vertically\tCtrl-N", "", TRUE );
1191
1192 wxMenu *menuLogical = new wxMenu;
1193 menuLogical->Append( LogicalOrigin_MoveDown, "Move &down\tCtrl-D" );
1194 menuLogical->Append( LogicalOrigin_MoveUp, "Move &up\tCtrl-U" );
1195 menuLogical->Append( LogicalOrigin_MoveLeft, "Move &right\tCtrl-L" );
1196 menuLogical->Append( LogicalOrigin_MoveRight, "Move &left\tCtrl-R" );
1197
1198 wxMenu *menuColour = new wxMenu;
1199 menuColour->Append( Colour_TextForeground, "Text foreground..." );
1200 menuColour->Append( Colour_TextBackground, "Text background..." );
1201 menuColour->Append( Colour_Background, "Background colour..." );
1202 menuColour->Append( Colour_BackgroundMode, "Opaque/transparent\tCtrl-B", "", TRUE );
1203 menuColour->Append( Colour_TextureBackgound, "Draw textured background\tCtrl-T", "", TRUE);
1204
1205 // now append the freshly created menu to the menu bar...
1206 wxMenuBar *menuBar = new wxMenuBar;
1207 menuBar->Append(menuFile, "&File");
1208 menuBar->Append(menuMapMode, "&MapMode");
1209 menuBar->Append(menuUserScale, "&UserScale");
1210 menuBar->Append(menuAxis, "&Axis");
1211 menuBar->Append(menuLogical, "&LogicalOrigin");
1212 menuBar->Append(menuColour, "&Colours");
1213
1214 // ... and attach this menu bar to the frame
1215 SetMenuBar(menuBar);
1216
1217 // create a status bar just for fun (by default with 1 pane only)
1218 CreateStatusBar(2);
1219 SetStatusText("Welcome to wxWindows!");
1220
1221 m_mapMode = wxMM_TEXT;
1222 m_xUserScale = 1.0;
1223 m_yUserScale = 1.0;
1224 m_xLogicalOrigin = 0;
1225 m_yLogicalOrigin = 0;
1226 m_xAxisReversed =
1227 m_yAxisReversed = FALSE;
1228 m_backgroundMode = wxSOLID;
1229 m_colourForeground = *wxRED;
1230 m_colourBackground = *wxBLUE;
1231 m_textureBackground = FALSE;
1232
1233 m_canvas = new MyCanvas( this );
1234 m_canvas->SetScrollbars( 10, 10, 100, 240 );
1235 }
1236
1237 // event handlers
1238
1239 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
1240 {
1241 // TRUE is to force the frame to close
1242 Close(TRUE);
1243 }
1244
1245 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
1246 {
1247 wxString msg;
1248 msg.Printf( wxT("This is the about dialog of the drawing sample.\n")
1249 wxT("This sample tests various primitive drawing functions\n")
1250 wxT("without any tests to prevent flicker.\n")
1251 wxT("Copyright (c) Robert Roebling 1999")
1252 );
1253
1254 wxMessageBox(msg, "About Drawing", wxOK | wxICON_INFORMATION, this);
1255 }
1256
1257 void MyFrame::OnShow(wxCommandEvent& event)
1258 {
1259 m_canvas->Show((ScreenToShow)(event.GetId() - MenuShow_First));
1260 }
1261
1262 void MyFrame::OnOption(wxCommandEvent& event)
1263 {
1264 switch (event.GetId())
1265 {
1266 case MapMode_Text:
1267 m_mapMode = wxMM_TEXT;
1268 break;
1269 case MapMode_Lometric:
1270 m_mapMode = wxMM_LOMETRIC;
1271 break;
1272 case MapMode_Twips:
1273 m_mapMode = wxMM_TWIPS;
1274 break;
1275 case MapMode_Points:
1276 m_mapMode = wxMM_POINTS;
1277 break;
1278 case MapMode_Metric:
1279 m_mapMode = wxMM_METRIC;
1280 break;
1281
1282 case LogicalOrigin_MoveDown:
1283 m_yLogicalOrigin += 10;
1284 break;
1285 case LogicalOrigin_MoveUp:
1286 m_yLogicalOrigin -= 10;
1287 break;
1288 case LogicalOrigin_MoveLeft:
1289 m_xLogicalOrigin += 10;
1290 break;
1291 case LogicalOrigin_MoveRight:
1292 m_xLogicalOrigin -= 10;
1293 break;
1294
1295 case UserScale_StretchHoriz:
1296 m_xUserScale *= 1.10;
1297 break;
1298 case UserScale_ShrinkHoriz:
1299 m_xUserScale /= 1.10;
1300 break;
1301 case UserScale_StretchVertic:
1302 m_yUserScale *= 1.10;
1303 break;
1304 case UserScale_ShrinkVertic:
1305 m_yUserScale /= 1.10;
1306 break;
1307 case UserScale_Restore:
1308 m_xUserScale =
1309 m_yUserScale = 1.0;
1310 break;
1311
1312 case AxisMirror_Vertic:
1313 m_yAxisReversed = !m_yAxisReversed;
1314 break;
1315 case AxisMirror_Horiz:
1316 m_xAxisReversed = !m_xAxisReversed;
1317 break;
1318
1319 case Colour_TextForeground:
1320 m_colourForeground = SelectColour();
1321 break;
1322 case Colour_TextBackground:
1323 m_colourBackground = SelectColour();
1324 break;
1325 case Colour_Background:
1326 {
1327 wxColour col = SelectColour();
1328 if ( col.Ok() )
1329 {
1330 m_backgroundBrush.SetColour(col);
1331 }
1332 }
1333 break;
1334 case Colour_BackgroundMode:
1335 m_backgroundMode = m_backgroundMode == wxSOLID ? wxTRANSPARENT
1336 : wxSOLID;
1337 break;
1338
1339 case Colour_TextureBackgound:
1340 m_textureBackground = ! m_textureBackground;
1341 break;
1342
1343 default:
1344 // skip Refresh()
1345 return;
1346 }
1347
1348 m_canvas->Refresh();
1349 }
1350
1351 void MyFrame::PrepareDC(wxDC& dc)
1352 {
1353 dc.SetMapMode( m_mapMode );
1354 dc.SetUserScale( m_xUserScale, m_yUserScale );
1355 dc.SetLogicalOrigin( m_xLogicalOrigin, m_yLogicalOrigin );
1356 dc.SetAxisOrientation( !m_xAxisReversed, m_yAxisReversed );
1357 }
1358
1359 wxColour MyFrame::SelectColour()
1360 {
1361 wxColour col;
1362 wxColourData data;
1363 wxColourDialog dialog(this, &data);
1364
1365 if ( dialog.ShowModal() == wxID_OK )
1366 {
1367 col = dialog.GetColourData().GetColour();
1368 }
1369
1370 return col;
1371 }
wxWidgets (Impactor)