samples/image/image.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/image/image.cpp
   3 // Purpose:     sample showing operations with wxImage
   4 // Author:      Robert Roebling
   5 // Modified by:
   6 // Created:     1998
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998-2005 Robert Roebling
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/wx.h"
  21 #endif
  22
  23 #include "wx/image.h"
  24 #include "wx/file.h"
  25 #include "wx/filename.h"
  26 #include "wx/mstream.h"
  27 #include "wx/wfstream.h"
  28 #include "wx/quantize.h"
  29
  30 #if wxUSE_CLIPBOARD
  31     #include "wx/dataobj.h"
  32     #include "wx/clipbrd.h"
  33 #endif // wxUSE_CLIPBOARD
  34
  35 #include "smile.xbm"
  36 #include "smile.xpm"
  37
  38 #if defined(__WXMSW__)
  39     #ifdef wxHAVE_RAW_BITMAP
  40     #include "wx/rawbmp.h"
  41     #endif
  42 #endif
  43
  44 #if defined(__WXMAC__) || defined(__WXGTK__)
  45     #define wxHAVE_RAW_BITMAP
  46     #include "wx/rawbmp.h"
  47 #endif
  48
  49 // derived classes
  50
  51 class MyFrame;
  52 class MyApp;
  53
  54 // MyCanvas
  55
  56 class MyCanvas: public wxScrolledWindow
  57 {
  58 public:
  59     MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
  60     ~MyCanvas();
  61     void OnPaint( wxPaintEvent &event );
  62     void CreateAntiAliasedBitmap();
  63
  64     wxBitmap  my_horse_png;
  65     wxBitmap  my_horse_jpeg;
  66     wxBitmap  my_horse_gif;
  67     wxBitmap  my_horse_bmp;
  68     wxBitmap  my_horse_bmp2;
  69     wxBitmap  my_horse_pcx;
  70     wxBitmap  my_horse_pnm;
  71     wxBitmap  my_horse_tiff;
  72     wxBitmap  my_horse_tga;
  73     wxBitmap  my_horse_xpm;
  74     wxBitmap  my_horse_ico32;
  75     wxBitmap  my_horse_ico16;
  76     wxBitmap  my_horse_ico;
  77     wxBitmap  my_horse_cur;
  78
  79     wxBitmap  my_smile_xbm;
  80     wxBitmap  my_square;
  81     wxBitmap  my_anti;
  82
  83     wxBitmap  my_horse_asciigrey_pnm;
  84     wxBitmap  my_horse_rawgrey_pnm;
  85
  86     wxBitmap  colorized_horse_jpeg;
  87     wxBitmap  my_cmyk_jpeg;
  88
  89     wxBitmap my_toucan;
  90     wxBitmap my_toucan_flipped_horiz;
  91     wxBitmap my_toucan_flipped_vert;
  92     wxBitmap my_toucan_flipped_both;
  93     wxBitmap my_toucan_grey;
  94     wxBitmap my_toucan_head;
  95     wxBitmap my_toucan_scaled_normal;
  96     wxBitmap my_toucan_scaled_high;
  97     wxBitmap my_toucan_blur;
  98
  99     int xH, yH ;
 100     int m_ani_images;
 101     wxBitmap *my_horse_ani;
 102
 103 private:
 104     wxBitmap m_bmpSmileXpm;
 105     wxIcon   m_iconSmileXpm;
 106
 107     DECLARE_EVENT_TABLE()
 108 };
 109
 110
 111 // MyFrame
 112
 113
 114 class MyFrame: public wxFrame
 115 {
 116 public:
 117     MyFrame();
 118
 119     void OnAbout( wxCommandEvent &event );
 120     void OnNewFrame( wxCommandEvent &event );
 121 #ifdef wxHAVE_RAW_BITMAP
 122     void OnTestRawBitmap( wxCommandEvent &event );
 123 #endif // wxHAVE_RAW_BITMAP
 124     void OnQuit( wxCommandEvent &event );
 125
 126 #if wxUSE_CLIPBOARD
 127     void OnCopy(wxCommandEvent& event);
 128     void OnPaste(wxCommandEvent& event);
 129 #endif // wxUSE_CLIPBOARD
 130
 131     MyCanvas         *m_canvas;
 132
 133 private:
 134     DECLARE_DYNAMIC_CLASS(MyFrame)
 135     DECLARE_EVENT_TABLE()
 136 };
 137
 138 // ----------------------------------------------------------------------------
 139 // Frame used for showing a standalone image
 140 // ----------------------------------------------------------------------------
 141
 142 enum
 143 {
 144     ID_ROTATE_LEFT = 100,
 145     ID_ROTATE_RIGHT,
 146     ID_RESIZE
 147 };
 148
 149 class MyImageFrame : public wxFrame
 150 {
 151 public:
 152     MyImageFrame(wxFrame *parent, const wxString& desc, const wxBitmap& bitmap)
 153         : wxFrame(parent, wxID_ANY,
 154                   wxString::Format(_T("Image from %s"), desc.c_str()),
 155                   wxDefaultPosition, wxDefaultSize,
 156                   wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE),
 157                   m_bitmap(bitmap)
 158     {
 159         wxMenu *menu = new wxMenu;
 160         menu->Append(wxID_SAVE);
 161         menu->AppendSeparator();
 162         menu->Append(ID_RESIZE, _T("&Fit to window\tCtrl-F"));
 163         menu->AppendSeparator();
 164         menu->Append(ID_ROTATE_LEFT, _T("Rotate &left\tCtrl-L"));
 165         menu->Append(ID_ROTATE_RIGHT, _T("Rotate &right\tCtrl-R"));
 166
 167         wxMenuBar *mbar = new wxMenuBar;
 168         mbar->Append(menu, _T("&Image"));
 169         SetMenuBar(mbar);
 170
 171         CreateStatusBar();
 172
 173         SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
 174
 175         UpdateStatusBar();
 176     }
 177
 178     void OnEraseBackground(wxEraseEvent& WXUNUSED(event))
 179     {
 180         // do nothing here to be able to see how transparent images are shown
 181     }
 182
 183     void OnPaint(wxPaintEvent& WXUNUSED(event))
 184     {
 185         wxPaintDC dc(this);
 186         const wxSize size = GetClientSize();
 187         dc.DrawBitmap(m_bitmap,
 188                       (size.x - m_bitmap.GetWidth())/2,
 189                       (size.y - m_bitmap.GetHeight())/2,
 190                       true /* use mask */);
 191     }
 192
 193     void OnSave(wxCommandEvent& WXUNUSED(event))
 194     {
 195 #if wxUSE_FILEDLG
 196         wxImage image = m_bitmap.ConvertToImage();
 197
 198         wxString savefilename = wxFileSelector( wxT("Save Image"),
 199                                                 wxEmptyString,
 200                                                 wxEmptyString,
 201                                                 (const wxChar *)NULL,
 202                                                 wxT("BMP files (*.bmp)|*.bmp|")
 203                                                 wxT("PNG files (*.png)|*.png|")
 204                                                 wxT("JPEG files (*.jpg)|*.jpg|")
 205                                                 wxT("GIF files (*.gif)|*.gif|")
 206                                                 wxT("TIFF files (*.tif)|*.tif|")
 207                                                 wxT("PCX files (*.pcx)|*.pcx|")
 208                                                 wxT("ICO files (*.ico)|*.ico|")
 209                                                 wxT("CUR files (*.cur)|*.cur"),
 210                                                 wxFD_SAVE,
 211                                                 this);
 212
 213         if ( savefilename.empty() )
 214             return;
 215
 216         wxString extension;
 217         wxFileName::SplitPath(savefilename, NULL, NULL, &extension);
 218
 219         bool saved = false;
 220         if ( extension == _T("bmp") )
 221         {
 222             static const int bppvalues[] =
 223             {
 224                 wxBMP_1BPP,
 225                 wxBMP_1BPP_BW,
 226                 wxBMP_4BPP,
 227                 wxBMP_8BPP,
 228                 wxBMP_8BPP_GREY,
 229                 wxBMP_8BPP_RED,
 230                 wxBMP_8BPP_PALETTE,
 231                 wxBMP_24BPP
 232             };
 233
 234             const wxString bppchoices[] =
 235             {
 236                 _T("1 bpp color"),
 237                 _T("1 bpp B&W"),
 238                 _T("4 bpp color"),
 239                 _T("8 bpp color"),
 240                 _T("8 bpp greyscale"),
 241                 _T("8 bpp red"),
 242                 _T("8 bpp own palette"),
 243                 _T("24 bpp")
 244             };
 245
 246             int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"),
 247                                                       _T("Image sample: save file"),
 248                                                       WXSIZEOF(bppchoices),
 249                                                       bppchoices,
 250                                                       this);
 251             if ( bppselection != -1 )
 252             {
 253                 int format = bppvalues[bppselection];
 254                 image.SetOption(wxIMAGE_OPTION_BMP_FORMAT, format);
 255
 256                 if ( format == wxBMP_8BPP_PALETTE )
 257                 {
 258                     unsigned char *cmap = new unsigned char [256];
 259                     for ( int i = 0; i < 256; i++ )
 260                         cmap[i] = (unsigned char)i;
 261                     image.SetPalette(wxPalette(256, cmap, cmap, cmap));
 262
 263                     delete[] cmap;
 264                 }
 265             }
 266         }
 267         else if ( extension == _T("png") )
 268         {
 269             static const int pngvalues[] =
 270             {
 271                 wxPNG_TYPE_COLOUR,
 272                 wxPNG_TYPE_COLOUR,
 273                 wxPNG_TYPE_GREY,
 274                 wxPNG_TYPE_GREY,
 275                 wxPNG_TYPE_GREY_RED,
 276                 wxPNG_TYPE_GREY_RED,
 277             };
 278
 279             const wxString pngchoices[] =
 280             {
 281                 _T("Colour 8bpp"),
 282                 _T("Colour 16bpp"),
 283                 _T("Grey 8bpp"),
 284                 _T("Grey 16bpp"),
 285                 _T("Grey red 8bpp"),
 286                 _T("Grey red 16bpp"),
 287             };
 288
 289             int sel = wxGetSingleChoiceIndex(_T("Set PNG format"),
 290                                              _T("Image sample: save file"),
 291                                              WXSIZEOF(pngchoices),
 292                                              pngchoices,
 293                                              this);
 294             if ( sel != -1 )
 295             {
 296                 image.SetOption(wxIMAGE_OPTION_PNG_FORMAT, pngvalues[sel]);
 297                 image.SetOption(wxIMAGE_OPTION_PNG_BITDEPTH, sel % 2 ? 16 : 8);
 298             }
 299         }
 300         else if ( extension == _T("cur") )
 301         {
 302             image.Rescale(32,32);
 303             image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, 0);
 304             image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, 0);
 305             // This shows how you can save an image with explicitly
 306             // specified image format:
 307             saved = image.SaveFile(savefilename, wxBITMAP_TYPE_CUR);
 308         }
 309
 310         if ( !saved )
 311         {
 312             // This one guesses image format from filename extension
 313             // (it may fail if the extension is not recognized):
 314             image.SaveFile(savefilename);
 315         }
 316 #endif // wxUSE_FILEDLG
 317     }
 318
 319     void OnResize(wxCommandEvent& WXUNUSED(event))
 320     {
 321         wxImage img(m_bitmap.ConvertToImage());
 322
 323         const wxSize size = GetClientSize();
 324         img.Rescale(size.x, size.y, wxIMAGE_QUALITY_HIGH);
 325         m_bitmap = wxBitmap(img);
 326
 327         UpdateStatusBar();
 328         Refresh();
 329     }
 330
 331     void OnRotate(wxCommandEvent& event)
 332     {
 333         double angle = 5;
 334         if ( event.GetId() == ID_ROTATE_LEFT )
 335             angle = -angle;
 336
 337         wxImage img(m_bitmap.ConvertToImage());
 338         img = img.Rotate(angle, wxPoint(img.GetWidth() / 2, img.GetHeight() / 2));
 339         if ( !img.Ok() )
 340         {
 341             wxLogWarning(_T("Rotation failed"));
 342             return;
 343         }
 344
 345         m_bitmap = wxBitmap(img);
 346
 347         UpdateStatusBar();
 348         Refresh();
 349     }
 350
 351 private:
 352     void UpdateStatusBar()
 353     {
 354         wxLogStatus(this, _T("Image size: (%d, %d)"),
 355                     m_bitmap.GetWidth(),
 356                     m_bitmap.GetHeight());
 357     }
 358
 359     wxBitmap m_bitmap;
 360
 361     DECLARE_EVENT_TABLE()
 362 };
 363
 364 #ifdef wxHAVE_RAW_BITMAP
 365
 366 #include "wx/rawbmp.h"
 367
 368 class MyRawBitmapFrame : public wxFrame
 369 {
 370 public:
 371     enum
 372     {
 373         BORDER = 15,
 374         SIZE = 150,
 375         REAL_SIZE = SIZE - 2*BORDER
 376     };
 377
 378     MyRawBitmapFrame(wxFrame *parent)
 379         : wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")),
 380           m_bitmap(SIZE, SIZE, 24),
 381           m_alphaBitmap(SIZE, SIZE, 32)
 382     {
 383         SetClientSize(SIZE, SIZE*2+25);
 384
 385         InitAlphaBitmap();
 386         InitBitmap();
 387
 388     }
 389
 390     void InitAlphaBitmap()
 391     {
 392         // First, clear the whole bitmap by making it alpha
 393         {
 394             wxAlphaPixelData data( m_alphaBitmap, wxPoint(0,0), wxSize(SIZE, SIZE) );
 395             if ( !data )
 396             {
 397                 wxLogError(_T("Failed to gain raw access to bitmap data"));
 398                 return;
 399             }
 400             wxAlphaPixelData::Iterator p(data);
 401             for ( int y = 0; y < SIZE; ++y )
 402             {
 403                 wxAlphaPixelData::Iterator rowStart = p;
 404                 for ( int x = 0; x < SIZE; ++x )
 405                 {
 406                     p.Alpha() = 0;
 407                     ++p; // same as p.OffsetX(1)
 408                 }
 409                 p = rowStart;
 410                 p.OffsetY(data, 1);
 411             }
 412         }
 413
 414         // Then, draw colourful alpha-blended stripes
 415         wxAlphaPixelData data(m_alphaBitmap, wxPoint(BORDER, BORDER),
 416                               wxSize(REAL_SIZE, REAL_SIZE));
 417         if ( !data )
 418         {
 419             wxLogError(_T("Failed to gain raw access to bitmap data"));
 420             return;
 421         }
 422
 423         wxAlphaPixelData::Iterator p(data);
 424
 425         for ( int y = 0; y < REAL_SIZE; ++y )
 426         {
 427             wxAlphaPixelData::Iterator rowStart = p;
 428
 429             int r = y < REAL_SIZE/3 ? 255 : 0,
 430                 g = (REAL_SIZE/3 <= y) && (y < 2*(REAL_SIZE/3)) ? 255 : 0,
 431                 b = 2*(REAL_SIZE/3) <= y ? 255 : 0;
 432
 433             for ( int x = 0; x < REAL_SIZE; ++x )
 434             {
 435                 // note that RGB must be premultiplied by alpha
 436                 unsigned a = (wxAlphaPixelData::Iterator::ChannelType)((x*255.)/REAL_SIZE);
 437                 p.Red() = r * a / 256;
 438                 p.Green() = g * a / 256;
 439                 p.Blue() = b * a / 256;
 440                 p.Alpha() = a;
 441
 442                 ++p; // same as p.OffsetX(1)
 443             }
 444
 445             p = rowStart;
 446             p.OffsetY(data, 1);
 447         }
 448     }
 449
 450     void InitBitmap()
 451     {
 452         // draw some colourful stripes without alpha
 453         wxNativePixelData data(m_bitmap);
 454         if ( !data )
 455         {
 456             wxLogError(_T("Failed to gain raw access to bitmap data"));
 457             return;
 458         }
 459
 460         wxNativePixelData::Iterator p(data);
 461         for ( int y = 0; y < SIZE; ++y )
 462         {
 463             wxNativePixelData::Iterator rowStart = p;
 464
 465             int r = y < SIZE/3 ? 255 : 0,
 466                 g = (SIZE/3 <= y) && (y < 2*(SIZE/3)) ? 255 : 0,
 467                 b = 2*(SIZE/3) <= y ? 255 : 0;
 468
 469             for ( int x = 0; x < SIZE; ++x )
 470             {
 471                 p.Red() = r;
 472                 p.Green() = g;
 473                 p.Blue() = b;
 474                 ++p; // same as p.OffsetX(1)
 475             }
 476
 477             p = rowStart;
 478             p.OffsetY(data, 1);
 479         }
 480     }
 481
 482     void OnPaint(wxPaintEvent& WXUNUSED(event))
 483     {
 484         wxPaintDC dc( this );
 485         dc.DrawText(_T("This is alpha and raw bitmap test"), 0, BORDER);
 486         dc.DrawText(_T("This is alpha and raw bitmap test"), 0, SIZE/2 - BORDER);
 487         dc.DrawText(_T("This is alpha and raw bitmap test"), 0, SIZE - 2*BORDER);
 488         dc.DrawBitmap( m_alphaBitmap, 0, 0, true /* use mask */ );
 489
 490         dc.DrawText(_T("Raw bitmap access without alpha"), 0, SIZE+5);
 491         dc.DrawBitmap( m_bitmap, 0, SIZE+5+dc.GetCharHeight());
 492     }
 493
 494 private:
 495     wxBitmap m_bitmap;
 496     wxBitmap m_alphaBitmap;
 497
 498     DECLARE_EVENT_TABLE()
 499 };
 500
 501 #endif // wxHAVE_RAW_BITMAP
 502
 503 // MyApp
 504
 505 class MyApp: public wxApp
 506 {
 507 public:
 508     virtual bool OnInit();
 509 };
 510
 511 // main program
 512
 513 IMPLEMENT_APP(MyApp)
 514
 515 // MyCanvas
 516
 517 BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
 518     EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground)
 519     EVT_PAINT(MyImageFrame::OnPaint)
 520
 521     EVT_MENU(wxID_SAVE, MyImageFrame::OnSave)
 522     EVT_MENU_RANGE(ID_ROTATE_LEFT, ID_ROTATE_RIGHT, MyImageFrame::OnRotate)
 523     EVT_MENU(ID_RESIZE, MyImageFrame::OnResize)
 524 END_EVENT_TABLE()
 525
 526 #ifdef wxHAVE_RAW_BITMAP
 527
 528 BEGIN_EVENT_TABLE(MyRawBitmapFrame, wxFrame)
 529     EVT_PAINT(MyRawBitmapFrame::OnPaint)
 530 END_EVENT_TABLE()
 531
 532 #endif // wxHAVE_RAW_BITMAP
 533
 534 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 535     EVT_PAINT(MyCanvas::OnPaint)
 536 END_EVENT_TABLE()
 537
 538 MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 539                     const wxPoint &pos, const wxSize &size )
 540     : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
 541     , m_bmpSmileXpm(smile_xpm)
 542     , m_iconSmileXpm(smile_xpm)
 543 {
 544     my_horse_ani = NULL;
 545     m_ani_images = 0 ;
 546
 547     SetBackgroundColour(* wxWHITE);
 548
 549     wxBitmap bitmap( 100, 100 );
 550
 551     wxMemoryDC dc;
 552     dc.SelectObject( bitmap );
 553     dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
 554     dc.SetPen( *wxBLACK_PEN );
 555     dc.DrawRectangle( 0, 0, 100, 100 );
 556     dc.SetBrush( *wxWHITE_BRUSH );
 557     dc.DrawRectangle( 20, 20, 60, 60 );
 558     dc.SelectObject( wxNullBitmap );
 559
 560     // try to find the directory with our images
 561     wxString dir;
 562     if ( wxFile::Exists(wxT("./horse.png")) )
 563         dir = wxT("./");
 564     else if ( wxFile::Exists(wxT("../horse.png")) )
 565         dir = wxT("../");
 566     else
 567         wxLogWarning(wxT("Can't find image files in either '.' or '..'!"));
 568
 569     wxImage image = bitmap.ConvertToImage();
 570
 571 #if wxUSE_LIBPNG
 572     if ( !image.SaveFile( dir + _T("test.png"), wxBITMAP_TYPE_PNG ))
 573         wxLogError(wxT("Can't save file"));
 574
 575     image.Destroy();
 576
 577     if ( image.LoadFile( dir + _T("test.png") ) )
 578         my_square = wxBitmap( image );
 579
 580     image.Destroy();
 581
 582     if ( !image.LoadFile( dir + _T("horse.png")) )
 583         wxLogError(wxT("Can't load PNG image"));
 584     else
 585         my_horse_png = wxBitmap( image );
 586
 587     if ( !image.LoadFile( dir + _T("toucan.png")) )
 588         wxLogError(wxT("Can't load PNG image"));
 589     else
 590         my_toucan = wxBitmap(image);
 591
 592     my_toucan_flipped_horiz = wxBitmap(image.Mirror(true));
 593     my_toucan_flipped_vert = wxBitmap(image.Mirror(false));
 594     my_toucan_flipped_both = wxBitmap(image.Mirror(true).Mirror(false));
 595     my_toucan_grey = wxBitmap(image.ConvertToGreyscale());
 596     my_toucan_head = wxBitmap(image.GetSubImage(wxRect(40, 7, 80, 60)));
 597     my_toucan_scaled_normal = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_NORMAL));
 598     my_toucan_scaled_high = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_HIGH));
 599     my_toucan_blur = wxBitmap(image.Blur(10));
 600
 601 #endif // wxUSE_LIBPNG
 602
 603 #if wxUSE_LIBJPEG
 604     image.Destroy();
 605
 606     if ( !image.LoadFile( dir + _T("horse.jpg")) )
 607         wxLogError(wxT("Can't load JPG image"));
 608     else
 609     {
 610         my_horse_jpeg = wxBitmap( image );
 611
 612         // Colorize by rotating green hue to red
 613         wxImage::HSVValue greenHSV = wxImage::RGBtoHSV(wxImage::RGBValue(0, 255, 0));
 614         wxImage::HSVValue redHSV = wxImage::RGBtoHSV(wxImage::RGBValue(255, 0, 0));
 615         image.RotateHue(redHSV.hue - greenHSV.hue);
 616         colorized_horse_jpeg = wxBitmap( image );
 617     }
 618
 619     if ( !image.LoadFile( dir + _T("cmyk.jpg")) )
 620         wxLogError(_T("Can't load CMYK JPG image"));
 621     else
 622         my_cmyk_jpeg = wxBitmap(image);
 623 #endif // wxUSE_LIBJPEG
 624
 625 #if wxUSE_GIF
 626     image.Destroy();
 627
 628     if ( !image.LoadFile( dir + _T("horse.gif" )) )
 629         wxLogError(wxT("Can't load GIF image"));
 630     else
 631         my_horse_gif = wxBitmap( image );
 632 #endif
 633
 634 #if wxUSE_PCX
 635     image.Destroy();
 636
 637     if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) )
 638         wxLogError(wxT("Can't load PCX image"));
 639     else
 640         my_horse_pcx = wxBitmap( image );
 641 #endif
 642
 643     image.Destroy();
 644
 645     if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) )
 646         wxLogError(wxT("Can't load BMP image"));
 647     else
 648         my_horse_bmp = wxBitmap( image );
 649
 650 #if wxUSE_XPM
 651     image.Destroy();
 652
 653     if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) )
 654         wxLogError(wxT("Can't load XPM image"));
 655     else
 656         my_horse_xpm = wxBitmap( image );
 657
 658     if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM ))
 659         wxLogError(wxT("Can't save file"));
 660 #endif
 661
 662 #if wxUSE_PNM
 663     image.Destroy();
 664
 665     if ( !image.LoadFile( dir + _T("horse.pnm"), wxBITMAP_TYPE_PNM ) )
 666         wxLogError(wxT("Can't load PNM image"));
 667     else
 668         my_horse_pnm = wxBitmap( image );
 669
 670     image.Destroy();
 671
 672     if ( !image.LoadFile( dir + _T("horse_ag.pnm"), wxBITMAP_TYPE_PNM ) )
 673         wxLogError(wxT("Can't load PNM image"));
 674     else
 675         my_horse_asciigrey_pnm = wxBitmap( image );
 676
 677     image.Destroy();
 678
 679     if ( !image.LoadFile( dir + _T("horse_rg.pnm"), wxBITMAP_TYPE_PNM ) )
 680         wxLogError(wxT("Can't load PNM image"));
 681     else
 682         my_horse_rawgrey_pnm = wxBitmap( image );
 683 #endif
 684
 685 #if wxUSE_LIBTIFF
 686     image.Destroy();
 687
 688     if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) )
 689         wxLogError(wxT("Can't load TIFF image"));
 690     else
 691         my_horse_tiff = wxBitmap( image );
 692 #endif
 693
 694 #if wxUSE_LIBTIFF
 695     image.Destroy();
 696
 697     if ( !image.LoadFile( dir + _T("horse.tga"), wxBITMAP_TYPE_TGA ) )
 698         wxLogError(wxT("Can't load TGA image"));
 699     else
 700         my_horse_tga = wxBitmap( image );
 701 #endif
 702
 703     CreateAntiAliasedBitmap();
 704
 705     my_smile_xbm = wxBitmap( (const char*)smile_bits, smile_width,
 706                                  smile_height, 1 );
 707
 708     // demonstrates XPM automatically using the mask when saving
 709     if ( m_bmpSmileXpm.Ok() )
 710         m_bmpSmileXpm.SaveFile(_T("saved.xpm"), wxBITMAP_TYPE_XPM);
 711
 712 #if wxUSE_ICO_CUR
 713     image.Destroy();
 714
 715     if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) )
 716         wxLogError(wxT("Can't load first ICO image"));
 717     else
 718         my_horse_ico32 = wxBitmap( image );
 719
 720     image.Destroy();
 721
 722     if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) )
 723         wxLogError(wxT("Can't load second ICO image"));
 724     else
 725         my_horse_ico16 = wxBitmap( image );
 726
 727     image.Destroy();
 728
 729     if ( !image.LoadFile( dir + _T("horse.ico") ) )
 730         wxLogError(wxT("Can't load best ICO image"));
 731     else
 732         my_horse_ico = wxBitmap( image );
 733
 734     image.Destroy();
 735
 736     if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) )
 737         wxLogError(wxT("Can't load best ICO image"));
 738     else
 739     {
 740         my_horse_cur = wxBitmap( image );
 741         xH = 30 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X) ;
 742         yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ;
 743     }
 744
 745     m_ani_images = wxImage::GetImageCount ( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI );
 746     if (m_ani_images==0)
 747         wxLogError(wxT("No ANI-format images found"));
 748     else
 749         my_horse_ani = new wxBitmap [m_ani_images];
 750     int i ;
 751     for (i=0; i < m_ani_images; i++)
 752     {
 753         image.Destroy();
 754         if (!image.LoadFile( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI, i ))
 755         {
 756             wxString tmp = wxT("Can't load image number ");
 757             tmp << i ;
 758             wxLogError(tmp);
 759         }
 760         else
 761             my_horse_ani [i] = wxBitmap( image );
 762     }
 763 #endif // wxUSE_ICO_CUR
 764
 765     image.Destroy();
 766
 767     // test image loading from stream
 768     wxFile file(dir + _T("horse.bmp"));
 769     if ( file.IsOpened() )
 770     {
 771         wxFileOffset len = file.Length();
 772         size_t dataSize = (size_t)len;
 773         void *data = malloc(dataSize);
 774         if ( file.Read(data, dataSize) != len )
 775             wxLogError(_T("Reading bitmap file failed"));
 776         else
 777         {
 778             wxMemoryInputStream mis(data, dataSize);
 779             if ( !image.LoadFile(mis) )
 780                 wxLogError(wxT("Can't load BMP image from stream"));
 781             else
 782                 my_horse_bmp2 = wxBitmap( image );
 783         }
 784
 785         free(data);
 786     }
 787 }
 788
 789 MyCanvas::~MyCanvas()
 790 {
 791     delete [] my_horse_ani;
 792 }
 793
 794 void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
 795 {
 796     wxPaintDC dc( this );
 797     PrepareDC( dc );
 798
 799     dc.DrawText( _T("Loaded image"), 30, 10 );
 800     if (my_square.Ok())
 801         dc.DrawBitmap( my_square, 30, 30 );
 802
 803     dc.DrawText( _T("Drawn directly"), 150, 10 );
 804     dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
 805     dc.SetPen( *wxBLACK_PEN );
 806     dc.DrawRectangle( 150, 30, 100, 100 );
 807     dc.SetBrush( *wxWHITE_BRUSH );
 808     dc.DrawRectangle( 170, 50, 60, 60 );
 809
 810     if (my_anti.Ok())
 811         dc.DrawBitmap( my_anti, 280, 30 );
 812
 813     dc.DrawText( _T("PNG handler"), 30, 135 );
 814     if (my_horse_png.Ok())
 815     {
 816         dc.DrawBitmap( my_horse_png, 30, 150 );
 817         wxRect rect(0,0,100,100);
 818         wxBitmap sub( my_horse_png.GetSubBitmap(rect) );
 819         dc.DrawText( _T("GetSubBitmap()"), 280, 175 );
 820         dc.DrawBitmap( sub, 280, 195 );
 821     }
 822
 823     dc.DrawText( _T("JPEG handler"), 30, 365 );
 824     if (my_horse_jpeg.Ok())
 825         dc.DrawBitmap( my_horse_jpeg, 30, 380 );
 826
 827     dc.DrawText( _T("Green rotated to red"), 280, 365 );
 828     if (colorized_horse_jpeg.Ok())
 829         dc.DrawBitmap( colorized_horse_jpeg, 280, 380 );
 830
 831     dc.DrawText( _T("CMYK JPEG image"), 530, 365 );
 832     if (my_cmyk_jpeg.Ok())
 833         dc.DrawBitmap( my_cmyk_jpeg, 530, 380 );
 834
 835     dc.DrawText( _T("GIF handler"), 30, 595 );
 836     if (my_horse_gif.Ok())
 837         dc.DrawBitmap( my_horse_gif, 30, 610 );
 838
 839     dc.DrawText( _T("PCX handler"), 30, 825 );
 840     if (my_horse_pcx.Ok())
 841         dc.DrawBitmap( my_horse_pcx, 30, 840 );
 842
 843     dc.DrawText( _T("BMP handler"), 30, 1055 );
 844     if (my_horse_bmp.Ok())
 845         dc.DrawBitmap( my_horse_bmp, 30, 1070 );
 846
 847     dc.DrawText( _T("BMP read from memory"), 280, 1055 );
 848     if (my_horse_bmp2.Ok())
 849         dc.DrawBitmap( my_horse_bmp2, 280, 1070 );
 850
 851     dc.DrawText( _T("PNM handler"), 30, 1285 );
 852     if (my_horse_pnm.Ok())
 853         dc.DrawBitmap( my_horse_pnm, 30, 1300 );
 854
 855     dc.DrawText( _T("PNM handler (ascii grey)"), 280, 1285 );
 856     if (my_horse_asciigrey_pnm.Ok())
 857         dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 );
 858
 859     dc.DrawText( _T("PNM handler (raw grey)"), 530, 1285 );
 860     if (my_horse_rawgrey_pnm.Ok())
 861         dc.DrawBitmap( my_horse_rawgrey_pnm, 530, 1300 );
 862
 863     dc.DrawText( _T("TIFF handler"), 30, 1515 );
 864     if (my_horse_tiff.Ok())
 865         dc.DrawBitmap( my_horse_tiff, 30, 1530 );
 866
 867     dc.DrawText( _T("TGA handler"), 30, 1745 );
 868     if (my_horse_tga.Ok())
 869         dc.DrawBitmap( my_horse_tga, 30, 1760 );
 870
 871     dc.DrawText( _T("XPM handler"), 30, 1975 );
 872     if (my_horse_xpm.Ok())
 873         dc.DrawBitmap( my_horse_xpm, 30, 2000 );
 874
 875     // toucans
 876     {
 877         int x = 750, y = 10, yy = 170;
 878
 879         dc.DrawText(wxT("Original toucan"), x+50, y);
 880         dc.DrawBitmap(my_toucan, x, y+15, true);
 881         y += yy;
 882         dc.DrawText(wxT("Flipped horizontally"), x+50, y);
 883         dc.DrawBitmap(my_toucan_flipped_horiz, x, y+15, true);
 884         y += yy;
 885         dc.DrawText(wxT("Flipped vertically"), x+50, y);
 886         dc.DrawBitmap(my_toucan_flipped_vert, x, y+15, true);
 887         y += yy;
 888         dc.DrawText(wxT("Flipped both h&v"), x+50, y);
 889         dc.DrawBitmap(my_toucan_flipped_both, x, y+15, true);
 890
 891         y += yy;
 892         dc.DrawText(wxT("In greyscale"), x+50, y);
 893         dc.DrawBitmap(my_toucan_grey, x, y+15, true);
 894
 895         y += yy;
 896         dc.DrawText(wxT("Toucan's head"), x+50, y);
 897         dc.DrawBitmap(my_toucan_head, x, y+15, true);
 898
 899         y += yy;
 900         dc.DrawText(wxT("Scaled with normal quality"), x+50, y);
 901         dc.DrawBitmap(my_toucan_scaled_normal, x, y+15, true);
 902
 903         y += yy;
 904         dc.DrawText(wxT("Scaled with high quality"), x+50, y);
 905         dc.DrawBitmap(my_toucan_scaled_high, x, y+15, true);
 906
 907         y += yy;
 908         dc.DrawText(wxT("Blured"), x+50, y);
 909         dc.DrawBitmap(my_toucan_blur, x, y+15, true);
 910     }
 911
 912     if (my_smile_xbm.Ok())
 913     {
 914         int x = 300, y = 1800;
 915
 916         dc.DrawText( _T("XBM bitmap"), x, y );
 917         dc.DrawText( _T("(green on red)"), x, y + 15 );
 918         dc.SetTextForeground( _T("GREEN") );
 919         dc.SetTextBackground( _T("RED") );
 920         dc.DrawBitmap( my_smile_xbm, x, y + 30 );
 921
 922         dc.SetTextForeground( *wxBLACK );
 923         dc.DrawText( _T("After wxImage conversion"), x + 120, y );
 924         dc.DrawText( _T("(red on white)"), x + 120, y + 15 );
 925         dc.SetTextForeground( wxT("RED") );
 926         wxImage i = my_smile_xbm.ConvertToImage();
 927         i.SetMaskColour( 255, 255, 255 );
 928         i.Replace( 0, 0, 0,
 929                wxRED_PEN->GetColour().Red(),
 930                wxRED_PEN->GetColour().Green(),
 931                wxRED_PEN->GetColour().Blue() );
 932         dc.DrawBitmap( wxBitmap(i), x + 120, y + 30, true );
 933         dc.SetTextForeground( *wxBLACK );
 934     }
 935
 936
 937     wxBitmap mono( 60,50,1 );
 938     wxMemoryDC memdc;
 939     memdc.SelectObject( mono );
 940     memdc.SetPen( *wxBLACK_PEN );
 941     memdc.SetBrush( *wxWHITE_BRUSH );
 942     memdc.DrawRectangle( 0,0,60,50 );
 943     memdc.SetTextForeground( *wxBLACK );
 944 #ifndef __WXGTK20__
 945     // I cannot convince GTK2 to draw into mono bitmaps
 946     memdc.DrawText( _T("Hi!"), 5, 5 );
 947 #endif
 948     memdc.SetBrush( *wxBLACK_BRUSH );
 949     memdc.DrawRectangle( 33,5,20,20 );
 950     memdc.SetPen( *wxRED_PEN );
 951     memdc.DrawLine( 5, 42, 50, 42 );
 952     memdc.SelectObject( wxNullBitmap );
 953
 954     if (mono.Ok())
 955     {
 956         int x = 300, y = 1900;
 957
 958         dc.DrawText( _T("Mono bitmap"), x, y );
 959         dc.DrawText( _T("(red on green)"), x, y + 15 );
 960         dc.SetTextForeground( wxT("RED") );
 961         dc.SetTextBackground( wxT("GREEN") );
 962         dc.DrawBitmap( mono, x, y + 30 );
 963
 964         dc.SetTextForeground( *wxBLACK );
 965         dc.DrawText( _T("After wxImage conversion"), x + 120, y );
 966         dc.DrawText( _T("(red on white)"), x + 120, y + 15 );
 967         dc.SetTextForeground( wxT("RED") );
 968         wxImage i = mono.ConvertToImage();
 969         i.SetMaskColour( 255,255,255 );
 970         i.Replace( 0,0,0,
 971                wxRED_PEN->GetColour().Red(),
 972                wxRED_PEN->GetColour().Green(),
 973                wxRED_PEN->GetColour().Blue() );
 974         dc.DrawBitmap( wxBitmap(i), x + 120, y + 30, true );
 975         dc.SetTextForeground( *wxBLACK );
 976     }
 977
 978     // For testing transparency
 979     dc.SetBrush( *wxRED_BRUSH );
 980     dc.DrawRectangle( 20, 2220, 560, 68 );
 981
 982     dc.DrawText(_T("XPM bitmap"), 30, 2230 );
 983     if ( m_bmpSmileXpm.Ok() )
 984         dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true);
 985
 986     dc.DrawText(_T("XPM icon"), 110, 2230 );
 987     if ( m_iconSmileXpm.Ok() )
 988         dc.DrawIcon(m_iconSmileXpm, 110, 2250);
 989
 990     // testing icon -> bitmap conversion
 991     wxBitmap to_blit( m_iconSmileXpm );
 992     if (to_blit.Ok())
 993     {
 994         dc.DrawText( _T("SubBitmap"), 170, 2230 );
 995         wxBitmap sub = to_blit.GetSubBitmap( wxRect(0,0,15,15) );
 996         if (sub.Ok())
 997             dc.DrawBitmap( sub, 170, 2250, true );
 998
 999         dc.DrawText( _T("Enlarged"), 250, 2230 );
1000         dc.SetUserScale( 1.5, 1.5 );
1001         dc.DrawBitmap( to_blit, (int)(250/1.5), (int)(2250/1.5), true );
1002         dc.SetUserScale( 2, 2 );
1003         dc.DrawBitmap( to_blit, (int)(300/2), (int)(2250/2), true );
1004         dc.SetUserScale( 1.0, 1.0 );
1005
1006         dc.DrawText( _T("Blit"), 400, 2230);
1007         wxMemoryDC blit_dc;
1008         blit_dc.SelectObject( to_blit );
1009         dc.Blit( 400, 2250, to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
1010         dc.SetUserScale( 1.5, 1.5 );
1011         dc.Blit( (int)(450/1.5), (int)(2250/1.5), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
1012         dc.SetUserScale( 2, 2 );
1013         dc.Blit( (int)(500/2), (int)(2250/2), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
1014         dc.SetUserScale( 1.0, 1.0 );
1015     }
1016
1017     dc.DrawText( _T("ICO handler (1st image)"), 30, 2290 );
1018     if (my_horse_ico32.Ok())
1019         dc.DrawBitmap( my_horse_ico32, 30, 2330, true );
1020
1021     dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 );
1022     if (my_horse_ico16.Ok())
1023         dc.DrawBitmap( my_horse_ico16, 230, 2330, true );
1024
1025     dc.DrawText( _T("ICO handler (best image)"), 430, 2290 );
1026     if (my_horse_ico.Ok())
1027         dc.DrawBitmap( my_horse_ico, 430, 2330, true );
1028
1029     dc.DrawText( _T("CUR handler"), 30, 2390 );
1030     if (my_horse_cur.Ok())
1031     {
1032         dc.DrawBitmap( my_horse_cur, 30, 2420, true );
1033         dc.SetPen (*wxRED_PEN);
1034         dc.DrawLine (xH-10,yH,xH+10,yH);
1035         dc.DrawLine (xH,yH-10,xH,yH+10);
1036     }
1037
1038     dc.DrawText( _T("ANI handler"), 230, 2390 );
1039     for ( int i=0; i < m_ani_images; i++ )
1040     {
1041         if (my_horse_ani[i].Ok())
1042         {
1043             dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true );
1044         }
1045     }
1046 }
1047
1048 void MyCanvas::CreateAntiAliasedBitmap()
1049 {
1050   wxBitmap bitmap( 300, 300 );
1051
1052   wxMemoryDC dc;
1053
1054   dc.SelectObject( bitmap );
1055
1056   dc.Clear();
1057
1058   dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
1059   dc.SetTextForeground( wxT("RED") );
1060   dc.DrawText( _T("This is anti-aliased Text."), 20, 5 );
1061   dc.DrawText( _T("And a Rectangle."), 20, 45 );
1062
1063   dc.SetBrush( *wxRED_BRUSH );
1064   dc.SetPen( *wxTRANSPARENT_PEN );
1065   dc.DrawRoundedRectangle( 20, 85, 200, 180, 20 );
1066
1067   wxImage original= bitmap.ConvertToImage();
1068   wxImage anti( 150, 150 );
1069
1070   /* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
1071
1072   for (int y = 1; y < 149; y++)
1073     for (int x = 1; x < 149; x++)
1074     {
1075        int red = original.GetRed( x*2, y*2 ) +
1076                  original.GetRed( x*2-1, y*2 ) +
1077                  original.GetRed( x*2, y*2+1 ) +
1078                  original.GetRed( x*2+1, y*2+1 );
1079        red = red/4;
1080
1081        int green = original.GetGreen( x*2, y*2 ) +
1082                    original.GetGreen( x*2-1, y*2 ) +
1083                    original.GetGreen( x*2, y*2+1 ) +
1084                    original.GetGreen( x*2+1, y*2+1 );
1085        green = green/4;
1086
1087        int blue = original.GetBlue( x*2, y*2 ) +
1088                   original.GetBlue( x*2-1, y*2 ) +
1089                   original.GetBlue( x*2, y*2+1 ) +
1090                   original.GetBlue( x*2+1, y*2+1 );
1091        blue = blue/4;
1092        anti.SetRGB( x, y, (unsigned char)red, (unsigned char)green, (unsigned char)blue );
1093     }
1094   my_anti = wxBitmap(anti);
1095 }
1096
1097 // MyFrame
1098
1099 enum
1100 {
1101     ID_QUIT  = wxID_EXIT,
1102     ID_ABOUT = wxID_ABOUT,
1103     ID_NEW = 100,
1104     ID_SHOWRAW = 101
1105 };
1106
1107 IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
1108
1109 BEGIN_EVENT_TABLE(MyFrame,wxFrame)
1110   EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
1111   EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
1112   EVT_MENU    (ID_NEW,  MyFrame::OnNewFrame)
1113 #ifdef wxHAVE_RAW_BITMAP
1114   EVT_MENU    (ID_SHOWRAW,  MyFrame::OnTestRawBitmap)
1115 #endif
1116
1117 #if wxUSE_CLIPBOARD
1118     EVT_MENU(wxID_COPY, MyFrame::OnCopy)
1119     EVT_MENU(wxID_PASTE, MyFrame::OnPaste)
1120 #endif // wxUSE_CLIPBOARD
1121 END_EVENT_TABLE()
1122
1123 MyFrame::MyFrame()
1124        : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"),
1125                   wxPoint(20, 20), wxSize(950, 700) )
1126 {
1127   wxMenuBar *menu_bar = new wxMenuBar();
1128
1129   wxMenu *menuImage = new wxMenu;
1130   menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O"));
1131
1132 #ifdef wxHAVE_RAW_BITMAP
1133   menuImage->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R"));
1134 #endif
1135   menuImage->AppendSeparator();
1136   menuImage->Append( ID_ABOUT, _T("&About..."));
1137   menuImage->AppendSeparator();
1138   menuImage->Append( ID_QUIT, _T("E&xit\tCtrl-Q"));
1139   menu_bar->Append(menuImage, _T("&Image"));
1140
1141 #if wxUSE_CLIPBOARD
1142   wxMenu *menuClipboard = new wxMenu;
1143   menuClipboard->Append(wxID_COPY, _T("&Copy test image\tCtrl-C"));
1144   menuClipboard->Append(wxID_PASTE, _T("&Paste image\tCtrl-V"));
1145   menu_bar->Append(menuClipboard, _T("&Clipboard"));
1146 #endif // wxUSE_CLIPBOARD
1147
1148   SetMenuBar( menu_bar );
1149
1150 #if wxUSE_STATUSBAR
1151   CreateStatusBar(2);
1152   int widths[] = { -1, 100 };
1153   SetStatusWidths( 2, widths );
1154 #endif // wxUSE_STATUSBAR
1155
1156   m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) );
1157
1158   // 500 width * 2750 height
1159   m_canvas->SetScrollbars( 10, 10, 50, 275 );
1160 }
1161
1162 void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
1163 {
1164   Close( true );
1165 }
1166
1167 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
1168 {
1169   (void)wxMessageBox( _T("wxImage demo\n")
1170                       _T("Robert Roebling (c) 1998,2000"),
1171                       _T("About wxImage Demo"), wxICON_INFORMATION | wxOK );
1172 }
1173
1174 void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) )
1175 {
1176 #if wxUSE_FILEDLG
1177     wxString filename = wxFileSelector(_T("Select image file"));
1178     if ( !filename )
1179         return;
1180
1181     wxImage image;
1182     if ( !image.LoadFile(filename) )
1183     {
1184         wxLogError(_T("Couldn't load image from '%s'."), filename.c_str());
1185
1186         return;
1187     }
1188
1189     (new MyImageFrame(this, filename, wxBitmap(image)))->Show();
1190 #endif // wxUSE_FILEDLG
1191 }
1192
1193 #ifdef wxHAVE_RAW_BITMAP
1194
1195 void MyFrame::OnTestRawBitmap( wxCommandEvent &WXUNUSED(event) )
1196 {
1197     (new MyRawBitmapFrame(this))->Show();
1198 }
1199
1200 #endif // wxHAVE_RAW_BITMAP
1201
1202 #if wxUSE_CLIPBOARD
1203
1204 void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event))
1205 {
1206     wxBitmapDataObject *dobjBmp = new wxBitmapDataObject;
1207     dobjBmp->SetBitmap(m_canvas->my_horse_png);
1208
1209     wxTheClipboard->Open();
1210
1211     if ( !wxTheClipboard->SetData(dobjBmp) )
1212     {
1213         wxLogError(_T("Failed to copy bitmap to clipboard"));
1214     }
1215
1216     wxTheClipboard->Close();
1217 }
1218
1219 void MyFrame::OnPaste(wxCommandEvent& WXUNUSED(event))
1220 {
1221     wxBitmapDataObject dobjBmp;
1222
1223     wxTheClipboard->Open();
1224     if ( !wxTheClipboard->GetData(dobjBmp) )
1225     {
1226         wxLogMessage(_T("No bitmap data in the clipboard"));
1227     }
1228     else
1229     {
1230         (new MyImageFrame(this, _T("Clipboard"), dobjBmp.GetBitmap()))->Show();
1231     }
1232     wxTheClipboard->Close();
1233 }
1234
1235 #endif // wxUSE_CLIPBOARD
1236
1237 //-----------------------------------------------------------------------------
1238 // MyApp
1239 //-----------------------------------------------------------------------------
1240
1241 bool MyApp::OnInit()
1242 {
1243     if ( !wxApp::OnInit() )
1244         return false;
1245
1246     wxInitAllImageHandlers();
1247
1248     wxFrame *frame = new MyFrame();
1249     frame->Show( true );
1250
1251     return true;
1252 }