+ wxPaintDC dc( this );
+ PrepareDC( dc );
+
+ dc.DrawText( "Loaded image", 30, 10 );
+ if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
+
+ dc.DrawText( "Drawn directly", 150, 10 );
+ dc.SetBrush( wxBrush( "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( "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( "GetSubBitmap()", 280, 190 );
+ dc.DrawBitmap( sub, 280, 210 );
+ }
+
+ dc.DrawText( "JPEG handler", 30, 365 );
+ if (my_horse_jpeg && my_horse_jpeg->Ok())
+ dc.DrawBitmap( *my_horse_jpeg, 30, 380 );
+
+ dc.DrawText( "GIF handler", 30, 595 );
+ if (my_horse_gif && my_horse_gif->Ok())
+ dc.DrawBitmap( *my_horse_gif, 30, 610 );
+
+ dc.DrawText( "PCX handler", 30, 825 );
+ if (my_horse_pcx && my_horse_pcx->Ok())
+ dc.DrawBitmap( *my_horse_pcx, 30, 840 );
+
+ dc.DrawText( "BMP handler", 30, 1055 );
+ if (my_horse_bmp && my_horse_bmp->Ok())
+ dc.DrawBitmap( *my_horse_bmp, 30, 1070 );
+
+ dc.DrawText( "PNM handler", 30, 1285 );
+ if (my_horse_pnm && my_horse_pnm->Ok())
+ dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
+
+ dc.DrawText( "TIFF handler", 30, 1515 );
+ if (my_horse_tiff && my_horse_tiff->Ok())
+ dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
+
+ dc.DrawText( "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( "XBM bitmap", 30, 1975 );
+ dc.DrawText( "(green on red)", 30, 1990 );
+ dc.SetTextForeground( "GREEN" );
+ dc.SetTextBackground( "RED" );
+ dc.DrawBitmap( *my_smile_xbm, 30, 2010 );
+
+ dc.SetTextForeground( "BLACK" );
+ dc.DrawText( "After wxImage conversion", 150, 1975 );
+ dc.DrawText( "(red on white)", 150, 1990 );
+ dc.SetTextForeground( "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( i.ConvertToBitmap(), 150, 2010, TRUE );
+ dc.SetTextForeground( "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 );
+ memdc.DrawText( "Hi!", 5, 5 );
+ 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( "Mono bitmap", 30, 2095 );
+ dc.DrawText( "(red on green)", 30, 2110 );
+ dc.SetTextForeground( "RED" );
+ dc.SetTextBackground( "GREEN" );
+ dc.DrawBitmap( mono, 30, 2130 );
+
+ dc.SetTextForeground( "BLACK" );
+ dc.DrawText( "After wxImage conversion", 150, 2095 );
+ dc.DrawText( "(red on white)", 150, 2110 );
+ dc.SetTextForeground( "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( i.ConvertToBitmap(), 150, 2130, TRUE );
+ dc.SetTextForeground( "BLACK" );
+ }
+
+ dc.DrawText("XPM bitmap", 30, 2230);
+ if ( m_bmpSmileXpm.Ok() )
+ {
+ dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, TRUE);
+ }
+
+ dc.DrawText("XPM icon", 150, 2230);
+ if ( m_iconSmileXpm.Ok() )
+ {
+ dc.DrawIcon(m_iconSmileXpm, 150, 2250);
+ }
+}
+
+void MyCanvas::CreateAntiAliasedBitmap()
+{
+ wxBitmap bitmap( 300, 300 );
+
+ wxMemoryDC dc;
+
+ dc.SelectObject( bitmap );
+
+ dc.Clear();
+
+ dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
+ dc.SetTextForeground( "RED" );
+ dc.DrawText( "This is anti-aliased Text.", 20, 20 );
+ dc.DrawText( "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, red, green, blue );
+ }
+ my_anti = new wxBitmap( anti.ConvertToBitmap() );
projects / wxWidgets.git / blobdiff