-BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
- EVT_PAINT(MyCanvas::OnPaint)
-END_EVENT_TABLE()
-
-MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
- const wxPoint &pos, const wxSize &size )
- : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
- , m_bmpSmileXpm((const char **) smile_xpm)
- , m_iconSmileXpm((const char **) smile_xpm)
-{
- my_horse_png = (wxBitmap*) NULL;
- my_horse_jpeg = (wxBitmap*) NULL;
- my_horse_gif = (wxBitmap*) NULL;
- my_horse_bmp = (wxBitmap*) NULL;
- my_horse_bmp2 = (wxBitmap*) NULL;
- my_horse_pcx = (wxBitmap*) NULL;
- my_horse_pnm = (wxBitmap*) NULL;
- my_horse_tiff = (wxBitmap*) NULL;
- my_horse_xpm = (wxBitmap*) NULL;
- my_horse_ico32 = (wxBitmap*) NULL;
- my_horse_ico16 = (wxBitmap*) NULL;
- my_horse_ico = (wxBitmap*) NULL;
- my_horse_cur = (wxBitmap*) NULL;
- my_horse_ani = (wxBitmap*) NULL;
-
- my_smile_xbm = (wxBitmap*) NULL;
- my_square = (wxBitmap*) NULL;
- my_anti = (wxBitmap*) NULL;
-
- m_ani_images = 0 ;
-
- SetBackgroundColour(* wxWHITE);
-
- wxBitmap bitmap( 100, 100 );
-
- wxMemoryDC dc;
- dc.SelectObject( bitmap );
- dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
- dc.SetPen( *wxBLACK_PEN );
- dc.DrawRectangle( 0, 0, 100, 100 );
- dc.SetBrush( *wxWHITE_BRUSH );
- dc.DrawRectangle( 20, 20, 60, 60 );
- dc.SelectObject( wxNullBitmap );
-
- // try to find the directory with our images
- wxString dir;
- if ( wxFile::Exists(wxT("./horse.png")) )
- dir = wxT("./");
- else if ( wxFile::Exists(wxT("../horse.png")) )
- dir = wxT("../");
- else
- wxLogWarning(wxT("Can't find image files in either '.' or '..'!"));
-
- wxImage image = bitmap.ConvertToImage();
-
-#if wxUSE_LIBPNG
- if ( !image.SaveFile( dir + _T("test.png"), wxBITMAP_TYPE_PNG ))
- wxLogError(wxT("Can't save file"));
-
- image.Destroy();
-
- if ( image.LoadFile( dir + _T("test.png") ) )
- my_square = new wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.png")) )
- wxLogError(wxT("Can't load PNG image"));
- else
- my_horse_png = new wxBitmap( image );
-#endif // wxUSE_LIBPNG
-
-#if wxUSE_LIBJPEG
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.jpg")) )
- wxLogError(wxT("Can't load JPG image"));
- else
- my_horse_jpeg = new wxBitmap( image );
-#endif // wxUSE_LIBJPEG
-
-#if wxUSE_GIF
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.gif" )) )
- wxLogError(wxT("Can't load GIF image"));
- else
- my_horse_gif = new wxBitmap( image );
-#endif
-
-#if wxUSE_PCX
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) )
- wxLogError(wxT("Can't load PCX image"));
- else
- my_horse_pcx = new wxBitmap( image );
-#endif
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) )
- wxLogError(wxT("Can't load BMP image"));
- else
- my_horse_bmp = new wxBitmap( image );
-
-#if wxUSE_XPM
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) )
- wxLogError(wxT("Can't load XPM image"));
- else
- my_horse_xpm = new wxBitmap( image );
-
- if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM ))
- wxLogError(wxT("Can't save file"));
-#endif
-
-#if wxUSE_PNM
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.pnm"), wxBITMAP_TYPE_PNM ) )
- wxLogError(wxT("Can't load PNM image"));
- else
- my_horse_pnm = new wxBitmap( image );
-#endif
-
-#if wxUSE_LIBTIFF
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) )
- wxLogError(wxT("Can't load TIFF image"));
- else
- my_horse_tiff = new wxBitmap( image );
-#endif
-
- CreateAntiAliasedBitmap();
-
- my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width,
- smile_height, 1 );
-
- // demonstrates XPM automatically using the mask when saving
- if ( m_bmpSmileXpm.Ok() )
- m_bmpSmileXpm.SaveFile(_T("saved.xpm"), wxBITMAP_TYPE_XPM);
-
-#if wxUSE_ICO_CUR
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) )
- wxLogError(wxT("Can't load first ICO image"));
- else
- my_horse_ico32 = new wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) )
- wxLogError(wxT("Can't load second ICO image"));
- else
- my_horse_ico16 = new wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.ico") ) )
- wxLogError(wxT("Can't load best ICO image"));
- else
- my_horse_ico = new wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) )
- wxLogError(wxT("Can't load best ICO image"));
- else
- {
- my_horse_cur = new wxBitmap( image );
- xH = 30 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X) ;
- yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ;
- }
-
- m_ani_images = wxImage::GetImageCount ( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI );
- if (m_ani_images==0)
- wxLogError(wxT("No ANI-format images found"));
- else
- my_horse_ani = new wxBitmap [m_ani_images];
- int i ;
- for (i=0; i < m_ani_images; i++)
- {
- image.Destroy();
- if (!image.LoadFile( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI, i ))
- {
- wxString tmp = wxT("Can't load image number ");
- tmp << i ;
- wxLogError(tmp);
- }
- else
- my_horse_ani [i] = wxBitmap( image );
- }
-#endif // wxUSE_ICO_CUR
-
- image.Destroy();
-
- // test image loading from stream
- wxFile file(dir + _T("horse.bmp"));
- if ( file.IsOpened() )
- {
- size_t len = (size_t)file.Length();
- void *data = malloc(len);
- if ( file.Read(data, len) != len )
- wxLogError(_T("Reading bitmap file failed"));
- else
- {
- wxMemoryInputStream mis(data, len);
- if ( !image.LoadFile(mis) )
- wxLogError(wxT("Can't load BMP image from stream"));
- else
- my_horse_bmp2 = new wxBitmap( image );
- }
-
- free(data);
- }
-}
-
-MyCanvas::~MyCanvas()
-{
- delete my_horse_pnm;
- delete my_horse_png;
- delete my_horse_jpeg;
- delete my_horse_gif;
- delete my_horse_bmp;
- delete my_horse_bmp2;
- delete my_horse_pcx;
- delete my_horse_tiff;
- delete my_horse_xpm;
- delete my_horse_ico32;
- delete my_horse_ico16;
- delete my_horse_ico;
- delete my_horse_cur;
- delete [] my_horse_ani;
- delete my_smile_xbm;
- delete my_square;
- delete my_anti;
-}
-
-void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
-{
- wxPaintDC dc( this );
- PrepareDC( dc );
-
- dc.DrawText( _T("Loaded image"), 30, 10 );
- if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
-
- dc.DrawText( _T("Drawn directly"), 150, 10 );
- dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
- dc.SetPen( *wxBLACK_PEN );
- dc.DrawRectangle( 150, 30, 100, 100 );
- dc.SetBrush( *wxWHITE_BRUSH );
- dc.DrawRectangle( 170, 50, 60, 60 );
-
- if (my_anti && my_anti->Ok())
- dc.DrawBitmap( *my_anti, 280, 30 );
-
- dc.DrawText( _T("PNG handler"), 30, 135 );
- if (my_horse_png && my_horse_png->Ok())
- {
- dc.DrawBitmap( *my_horse_png, 30, 150 );
- wxRect rect(0,0,100,100);
- wxBitmap sub( my_horse_png->GetSubBitmap(rect) );
- dc.DrawText( _T("GetSubBitmap()"), 280, 190 );
- dc.DrawBitmap( sub, 280, 210 );
- }
-
- dc.DrawText( _T("JPEG handler"), 30, 365 );
- if (my_horse_jpeg && my_horse_jpeg->Ok())
- dc.DrawBitmap( *my_horse_jpeg, 30, 380 );
-
- dc.DrawText( _T("GIF handler"), 30, 595 );
- if (my_horse_gif && my_horse_gif->Ok())
- dc.DrawBitmap( *my_horse_gif, 30, 610 );
-
- dc.DrawText( _T("PCX handler"), 30, 825 );
- if (my_horse_pcx && my_horse_pcx->Ok())
- dc.DrawBitmap( *my_horse_pcx, 30, 840 );
-
- dc.DrawText( _T("BMP handler"), 30, 1055 );
- if (my_horse_bmp && my_horse_bmp->Ok())
- dc.DrawBitmap( *my_horse_bmp, 30, 1070 );
-
- dc.DrawText( _T("BMP read from memory"), 280, 1055 );
- if (my_horse_bmp2 && my_horse_bmp2->Ok())
- dc.DrawBitmap( *my_horse_bmp2, 280, 1070 );
-
- dc.DrawText( _T("PNM handler"), 30, 1285 );
- if (my_horse_pnm && my_horse_pnm->Ok())
- dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
-
- dc.DrawText( _T("TIFF handler"), 30, 1515 );
- if (my_horse_tiff && my_horse_tiff->Ok())
- dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
-
- dc.DrawText( _T("XPM handler"), 30, 1745 );
- if (my_horse_xpm && my_horse_xpm->Ok())
- dc.DrawBitmap( *my_horse_xpm, 30, 1760 );
-
-
- if (my_smile_xbm && my_smile_xbm->Ok())
- {
- dc.DrawText( _T("XBM bitmap"), 30, 1975 );
- dc.DrawText( _T("(green on red)"), 30, 1990 );
- dc.SetTextForeground( _T("GREEN") );
- dc.SetTextBackground( _T("RED") );
- dc.DrawBitmap( *my_smile_xbm, 30, 2010 );
-
- dc.SetTextForeground( wxT("BLACK") );
- dc.DrawText( _T("After wxImage conversion"), 150, 1975 );
- dc.DrawText( _T("(red on white)"), 150, 1990 );
- dc.SetTextForeground( wxT("RED") );
- wxImage i = my_smile_xbm->ConvertToImage();
- i.SetMaskColour( 255, 255, 255 );
- i.Replace( 0, 0, 0,
- wxRED_PEN->GetColour().Red(),
- wxRED_PEN->GetColour().Green(),
- wxRED_PEN->GetColour().Blue() );
- dc.DrawBitmap( wxBitmap(i), 150, 2010, true );
- dc.SetTextForeground( wxT("BLACK") );
- }
-
-
- wxBitmap mono( 60,50,1 );
- wxMemoryDC memdc;
- memdc.SelectObject( mono );
- memdc.SetPen( *wxBLACK_PEN );
- memdc.SetBrush( *wxWHITE_BRUSH );
- memdc.DrawRectangle( 0,0,60,50 );
- memdc.SetTextForeground( *wxBLACK );
-#ifndef __WXGTK20__
- // I cannot convince GTK2 to draw into mono bitmaps
- memdc.DrawText( _T("Hi!"), 5, 5 );
-#endif
- memdc.SetBrush( *wxBLACK_BRUSH );
- memdc.DrawRectangle( 33,5,20,20 );
- memdc.SetPen( *wxRED_PEN );
- memdc.DrawLine( 5, 42, 50, 42 );
- memdc.SelectObject( wxNullBitmap );
-
- if (mono.Ok())
- {
- dc.DrawText( _T("Mono bitmap"), 30, 2095 );
- dc.DrawText( _T("(red on green)"), 30, 2110 );
- dc.SetTextForeground( wxT("RED") );
- dc.SetTextBackground( wxT("GREEN") );
- dc.DrawBitmap( mono, 30, 2130 );
-
- dc.SetTextForeground( wxT("BLACK") );
- dc.DrawText( _T("After wxImage conversion"), 150, 2095 );
- dc.DrawText( _T("(red on white)"), 150, 2110 );
- dc.SetTextForeground( wxT("RED") );
- wxImage i = mono.ConvertToImage();
- i.SetMaskColour( 255,255,255 );
- i.Replace( 0,0,0,
- wxRED_PEN->GetColour().Red(),
- wxRED_PEN->GetColour().Green(),
- wxRED_PEN->GetColour().Blue() );
- dc.DrawBitmap( wxBitmap(i), 150, 2130, true );
- dc.SetTextForeground( wxT("BLACK") );
- }
-
- // For testing transparency
- dc.SetBrush( *wxRED_BRUSH );
- dc.DrawRectangle( 20, 2220, 560, 68 );
-
- dc.DrawText(_T("XPM bitmap"), 30, 2230 );
- if ( m_bmpSmileXpm.Ok() )
- dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true);
-
- dc.DrawText(_T("XPM icon"), 110, 2230 );
- if ( m_iconSmileXpm.Ok() )
- dc.DrawIcon(m_iconSmileXpm, 110, 2250);
-
- // testing icon -> bitmap conversion
- wxBitmap to_blit( m_iconSmileXpm );
- if (to_blit.Ok())
- {
- dc.DrawText( _T("SubBitmap"), 170, 2230 );
- wxBitmap sub = to_blit.GetSubBitmap( wxRect(0,0,15,15) );
- if (sub.Ok())
- dc.DrawBitmap( sub, 170, 2250, true );
-
- dc.DrawText( _T("Enlarged"), 250, 2230 );
- dc.SetUserScale( 1.5, 1.5 );
- dc.DrawBitmap( to_blit, (int)(250/1.5), (int)(2250/1.5), true );
- dc.SetUserScale( 2, 2 );
- dc.DrawBitmap( to_blit, (int)(300/2), (int)(2250/2), true );
- dc.SetUserScale( 1.0, 1.0 );
-
- dc.DrawText( _T("Blit"), 400, 2230);
- wxMemoryDC blit_dc;
- blit_dc.SelectObject( to_blit );
- dc.Blit( 400, 2250, to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
- dc.SetUserScale( 1.5, 1.5 );
- dc.Blit( (int)(450/1.5), (int)(2250/1.5), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
- dc.SetUserScale( 2, 2 );
- dc.Blit( (int)(500/2), (int)(2250/2), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true );
- dc.SetUserScale( 1.0, 1.0 );
- }
-
- dc.DrawText( _T("ICO handler (1st image)"), 30, 2290 );
- if (my_horse_ico32 && my_horse_ico32->Ok())
- dc.DrawBitmap( *my_horse_ico32, 30, 2330, true );
-
- dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 );
- if (my_horse_ico16 && my_horse_ico16->Ok())
- dc.DrawBitmap( *my_horse_ico16, 230, 2330, true );
-
- dc.DrawText( _T("ICO handler (best image)"), 430, 2290 );
- if (my_horse_ico && my_horse_ico->Ok())
- dc.DrawBitmap( *my_horse_ico, 430, 2330, true );
-
- dc.DrawText( _T("CUR handler"), 30, 2390 );
- if (my_horse_cur && my_horse_cur->Ok())
- {
- dc.DrawBitmap( *my_horse_cur, 30, 2420, true );
- dc.SetPen (*wxRED_PEN);
- dc.DrawLine (xH-10,yH,xH+10,yH);
- dc.DrawLine (xH,yH-10,xH,yH+10);
- }
- dc.DrawText( _T("ANI handler"), 230, 2390 );
- int i ;
- for (i=0; i < m_ani_images; i ++)
- if (my_horse_ani[i].Ok())
- {
- dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true );
- }
-}
-
-void MyCanvas::CreateAntiAliasedBitmap()
-{
- wxBitmap bitmap( 300, 300 );
-
- wxMemoryDC dc;
-
- dc.SelectObject( bitmap );
-
- dc.Clear();
-
- dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
- dc.SetTextForeground( wxT("RED") );
- dc.DrawText( _T("This is anti-aliased Text."), 20, 20 );
- dc.DrawText( _T("And a Rectangle."), 20, 60 );
-
- dc.SetBrush( *wxRED_BRUSH );
- dc.SetPen( *wxTRANSPARENT_PEN );
- dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
-
- wxImage original= bitmap.ConvertToImage();
- wxImage anti( 150, 150 );
-
- /* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
-
- for (int y = 1; y < 149; y++)
- for (int x = 1; x < 149; x++)
- {
- int red = original.GetRed( x*2, y*2 ) +
- original.GetRed( x*2-1, y*2 ) +
- original.GetRed( x*2, y*2+1 ) +
- original.GetRed( x*2+1, y*2+1 );
- red = red/4;
-
- int green = original.GetGreen( x*2, y*2 ) +
- original.GetGreen( x*2-1, y*2 ) +
- original.GetGreen( x*2, y*2+1 ) +
- original.GetGreen( x*2+1, y*2+1 );
- green = green/4;
-
- int blue = original.GetBlue( x*2, y*2 ) +
- original.GetBlue( x*2-1, y*2 ) +
- original.GetBlue( x*2, y*2+1 ) +
- original.GetBlue( x*2+1, y*2+1 );
- blue = blue/4;
- anti.SetRGB( x, y, (unsigned char)red, (unsigned char)green, (unsigned char)blue );
- }
- my_anti = new wxBitmap(anti);
-}
-
projects / wxWidgets.git / blobdiff