X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/09ddabf738ef243dc0f4965f69115eeb03a6dce2..cd15bcaf50ead53ccf9d50965312f0dc754affb4:/samples/image/canvas.cpp diff --git a/samples/image/canvas.cpp b/samples/image/canvas.cpp index 91ef136a02..31ea54f76e 100644 --- a/samples/image/canvas.cpp +++ b/samples/image/canvas.cpp @@ -6,7 +6,7 @@ // Created: 1998 // RCS-ID: $Id$ // Copyright: (c) 1998-2005 Robert Roebling -// License: wxWindows licence +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx/wx.h". @@ -35,6 +35,7 @@ #include "smile.xbm" #include "smile.xpm" +#include "cursor_png.c" #include "canvas.h" @@ -62,7 +63,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, wxMemoryDC dc; dc.SelectObject( bitmap ); - dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); + dc.SetBrush( wxBrush( wxS("orange") ) ); dc.SetPen( *wxBLACK_PEN ); dc.DrawRectangle( 0, 0, 100, 100 ); dc.SetBrush( *wxWHITE_BRUSH ); @@ -81,25 +82,35 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, wxImage image = bitmap.ConvertToImage(); #if wxUSE_LIBPNG - if ( !image.SaveFile( dir + _T("test.png"), wxBITMAP_TYPE_PNG )) + if ( !image.SaveFile( dir + wxT("test.png"), wxBITMAP_TYPE_PNG )) + { wxLogError(wxT("Can't save file")); + } image.Destroy(); - if ( image.LoadFile( dir + _T("test.png") ) ) + if ( image.LoadFile( dir + wxT("test.png") ) ) my_square = wxBitmap( image ); image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.png")) ) + if ( !image.LoadFile( dir + wxT("horse.png")) ) + { wxLogError(wxT("Can't load PNG image")); + } else + { my_horse_png = wxBitmap( image ); + } - if ( !image.LoadFile( dir + _T("toucan.png")) ) + if ( !image.LoadFile( dir + wxT("toucan.png")) ) + { wxLogError(wxT("Can't load PNG image")); + } else + { my_toucan = wxBitmap(image); + } my_toucan_flipped_horiz = wxBitmap(image.Mirror(true)); my_toucan_flipped_vert = wxBitmap(image.Mirror(false)); @@ -115,8 +126,10 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, #if wxUSE_LIBJPEG image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.jpg")) ) + if ( !image.LoadFile( dir + wxT("horse.jpg")) ) + { wxLogError(wxT("Can't load JPG image")); + } else { my_horse_jpeg = wxBitmap( image ); @@ -128,88 +141,130 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, colorized_horse_jpeg = wxBitmap( image ); } - if ( !image.LoadFile( dir + _T("cmyk.jpg")) ) - wxLogError(_T("Can't load CMYK JPG image")); + if ( !image.LoadFile( dir + wxT("cmyk.jpg")) ) + { + wxLogError(wxT("Can't load CMYK JPG image")); + } else + { my_cmyk_jpeg = wxBitmap(image); + } #endif // wxUSE_LIBJPEG #if wxUSE_GIF image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.gif" )) ) + if ( !image.LoadFile( dir + wxT("horse.gif" )) ) + { wxLogError(wxT("Can't load GIF image")); + } else + { my_horse_gif = wxBitmap( image ); + } #endif #if wxUSE_PCX image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) ) + if ( !image.LoadFile( dir + wxT("horse.pcx"), wxBITMAP_TYPE_PCX ) ) + { wxLogError(wxT("Can't load PCX image")); + } else + { my_horse_pcx = wxBitmap( image ); + } #endif image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) ) + if ( !image.LoadFile( dir + wxT("horse.bmp"), wxBITMAP_TYPE_BMP ) ) + { wxLogError(wxT("Can't load BMP image")); + } else + { my_horse_bmp = wxBitmap( image ); + } #if wxUSE_XPM image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) ) + if ( !image.LoadFile( dir + wxT("horse.xpm"), wxBITMAP_TYPE_XPM ) ) + { wxLogError(wxT("Can't load XPM image")); + } else + { my_horse_xpm = wxBitmap( image ); + } - if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM )) + if ( !image.SaveFile( dir + wxT("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 ) ) + if ( !image.LoadFile( dir + wxT("horse.pnm"), wxBITMAP_TYPE_PNM ) ) + { wxLogError(wxT("Can't load PNM image")); + } else + { my_horse_pnm = wxBitmap( image ); + } image.Destroy(); - if ( !image.LoadFile( dir + _T("horse_ag.pnm"), wxBITMAP_TYPE_PNM ) ) + if ( !image.LoadFile( dir + wxT("horse_ag.pnm"), wxBITMAP_TYPE_PNM ) ) + { wxLogError(wxT("Can't load PNM image")); + } else + { my_horse_asciigrey_pnm = wxBitmap( image ); + } image.Destroy(); - if ( !image.LoadFile( dir + _T("horse_rg.pnm"), wxBITMAP_TYPE_PNM ) ) + if ( !image.LoadFile( dir + wxT("horse_rg.pnm"), wxBITMAP_TYPE_PNM ) ) + { wxLogError(wxT("Can't load PNM image")); + } else + { my_horse_rawgrey_pnm = wxBitmap( image ); + } #endif #if wxUSE_LIBTIFF image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) ) + if ( !image.LoadFile( dir + wxT("horse.tif"), wxBITMAP_TYPE_TIFF ) ) + { wxLogError(wxT("Can't load TIFF image")); + } else + { my_horse_tiff = wxBitmap( image ); + } #endif #if wxUSE_LIBTIFF image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.tga"), wxBITMAP_TYPE_TGA ) ) + if ( !image.LoadFile( dir + wxT("horse.tga"), wxBITMAP_TYPE_TGA ) ) + { wxLogError(wxT("Can't load TGA image")); + } else + { my_horse_tga = wxBitmap( image ); + } #endif CreateAntiAliasedBitmap(); @@ -218,35 +273,49 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, 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 ( m_bmpSmileXpm.IsOk() ) + m_bmpSmileXpm.SaveFile(wxT("saved.xpm"), wxBITMAP_TYPE_XPM); #if wxUSE_ICO_CUR image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) ) + if ( !image.LoadFile( dir + wxT("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) ) + { wxLogError(wxT("Can't load first ICO image")); + } else + { my_horse_ico32 = wxBitmap( image ); + } image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) ) + if ( !image.LoadFile( dir + wxT("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) ) + { wxLogError(wxT("Can't load second ICO image")); + } else + { my_horse_ico16 = wxBitmap( image ); + } image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.ico") ) ) + if ( !image.LoadFile( dir + wxT("horse.ico") ) ) + { wxLogError(wxT("Can't load best ICO image")); + } else + { my_horse_ico = wxBitmap( image ); + } image.Destroy(); - if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) ) + if ( !image.LoadFile( dir + wxT("horse.cur"), wxBITMAP_TYPE_CUR ) ) + { wxLogError(wxT("Can't load best ICO image")); + } else { my_horse_cur = wxBitmap( image ); @@ -254,17 +323,21 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ; } - m_ani_images = wxImage::GetImageCount ( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI ); + m_ani_images = wxImage::GetImageCount ( dir + wxT("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 )) + if (!image.LoadFile( dir + wxT("horse3.ani"), wxBITMAP_TYPE_ANI, i )) { wxString tmp = wxT("Can't load image number "); tmp << i ; @@ -279,25 +352,44 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, image.Destroy(); // test image loading from stream - wxFile file(dir + _T("horse.bmp")); + wxFile file(dir + wxT("horse.bmp")); if ( file.IsOpened() ) { wxFileOffset len = file.Length(); size_t dataSize = (size_t)len; void *data = malloc(dataSize); if ( file.Read(data, dataSize) != len ) - wxLogError(_T("Reading bitmap file failed")); + { + wxLogError(wxT("Reading bitmap file failed")); + } else { wxMemoryInputStream mis(data, dataSize); if ( !image.LoadFile(mis) ) + { wxLogError(wxT("Can't load BMP image from stream")); + } else + { my_horse_bmp2 = wxBitmap( image ); + } } free(data); } + + // This macro loads PNG from either resources on the platforms that support + // this (Windows and OS X) or from in-memory data (coming from cursor_png.c + // included above in our case). + my_png_from_res = wxBITMAP_PNG(cursor); + + // This one always loads PNG from memory but exists for consistency with + // the above one and also because it frees you from the need to specify the + // length explicitly, without it you'd have to do it and also spell the + // array name in full, like this: + // + // my_png_from_mem = wxBitmap::NewFromPNGData(cursor_png, WXSIZEOF(cursor_png)); + my_png_from_mem = wxBITMAP_PNG_FROM_DATA(cursor); } MyCanvas::~MyCanvas() @@ -310,80 +402,80 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) wxPaintDC dc( this ); PrepareDC( dc ); - dc.DrawText( _T("Loaded image"), 30, 10 ); - if (my_square.Ok()) + dc.DrawText( wxT("Loaded image"), 30, 10 ); + if (my_square.IsOk()) dc.DrawBitmap( my_square, 30, 30 ); - dc.DrawText( _T("Drawn directly"), 150, 10 ); - dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); + dc.DrawText( wxT("Drawn directly"), 150, 10 ); + dc.SetBrush( wxBrush( wxS("orange") ) ); dc.SetPen( *wxBLACK_PEN ); dc.DrawRectangle( 150, 30, 100, 100 ); dc.SetBrush( *wxWHITE_BRUSH ); dc.DrawRectangle( 170, 50, 60, 60 ); - if (my_anti.Ok()) + if (my_anti.IsOk()) dc.DrawBitmap( my_anti, 280, 30 ); - dc.DrawText( _T("PNG handler"), 30, 135 ); - if (my_horse_png.Ok()) + dc.DrawText( wxT("PNG handler"), 30, 135 ); + if (my_horse_png.IsOk()) { 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, 175 ); + dc.DrawText( wxT("GetSubBitmap()"), 280, 175 ); dc.DrawBitmap( sub, 280, 195 ); } - dc.DrawText( _T("JPEG handler"), 30, 365 ); - if (my_horse_jpeg.Ok()) + dc.DrawText( wxT("JPEG handler"), 30, 365 ); + if (my_horse_jpeg.IsOk()) dc.DrawBitmap( my_horse_jpeg, 30, 380 ); - dc.DrawText( _T("Green rotated to red"), 280, 365 ); - if (colorized_horse_jpeg.Ok()) + dc.DrawText( wxT("Green rotated to red"), 280, 365 ); + if (colorized_horse_jpeg.IsOk()) dc.DrawBitmap( colorized_horse_jpeg, 280, 380 ); - dc.DrawText( _T("CMYK JPEG image"), 530, 365 ); - if (my_cmyk_jpeg.Ok()) + dc.DrawText( wxT("CMYK JPEG image"), 530, 365 ); + if (my_cmyk_jpeg.IsOk()) dc.DrawBitmap( my_cmyk_jpeg, 530, 380 ); - dc.DrawText( _T("GIF handler"), 30, 595 ); - if (my_horse_gif.Ok()) + dc.DrawText( wxT("GIF handler"), 30, 595 ); + if (my_horse_gif.IsOk()) dc.DrawBitmap( my_horse_gif, 30, 610 ); - dc.DrawText( _T("PCX handler"), 30, 825 ); - if (my_horse_pcx.Ok()) + dc.DrawText( wxT("PCX handler"), 30, 825 ); + if (my_horse_pcx.IsOk()) dc.DrawBitmap( my_horse_pcx, 30, 840 ); - dc.DrawText( _T("BMP handler"), 30, 1055 ); - if (my_horse_bmp.Ok()) + dc.DrawText( wxT("BMP handler"), 30, 1055 ); + if (my_horse_bmp.IsOk()) dc.DrawBitmap( my_horse_bmp, 30, 1070 ); - dc.DrawText( _T("BMP read from memory"), 280, 1055 ); - if (my_horse_bmp2.Ok()) + dc.DrawText( wxT("BMP read from memory"), 280, 1055 ); + if (my_horse_bmp2.IsOk()) dc.DrawBitmap( my_horse_bmp2, 280, 1070 ); - dc.DrawText( _T("PNM handler"), 30, 1285 ); - if (my_horse_pnm.Ok()) + dc.DrawText( wxT("PNM handler"), 30, 1285 ); + if (my_horse_pnm.IsOk()) dc.DrawBitmap( my_horse_pnm, 30, 1300 ); - dc.DrawText( _T("PNM handler (ascii grey)"), 280, 1285 ); - if (my_horse_asciigrey_pnm.Ok()) + dc.DrawText( wxT("PNM handler (ascii grey)"), 280, 1285 ); + if (my_horse_asciigrey_pnm.IsOk()) dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 ); - dc.DrawText( _T("PNM handler (raw grey)"), 530, 1285 ); - if (my_horse_rawgrey_pnm.Ok()) + dc.DrawText( wxT("PNM handler (raw grey)"), 530, 1285 ); + if (my_horse_rawgrey_pnm.IsOk()) dc.DrawBitmap( my_horse_rawgrey_pnm, 530, 1300 ); - dc.DrawText( _T("TIFF handler"), 30, 1515 ); - if (my_horse_tiff.Ok()) + dc.DrawText( wxT("TIFF handler"), 30, 1515 ); + if (my_horse_tiff.IsOk()) dc.DrawBitmap( my_horse_tiff, 30, 1530 ); - dc.DrawText( _T("TGA handler"), 30, 1745 ); - if (my_horse_tga.Ok()) + dc.DrawText( wxT("TGA handler"), 30, 1745 ); + if (my_horse_tga.IsOk()) dc.DrawBitmap( my_horse_tga, 30, 1760 ); - dc.DrawText( _T("XPM handler"), 30, 1975 ); - if (my_horse_xpm.Ok()) + dc.DrawText( wxT("XPM handler"), 30, 1975 ); + if (my_horse_xpm.IsOk()) dc.DrawBitmap( my_horse_xpm, 30, 2000 ); // toucans @@ -423,19 +515,19 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.DrawBitmap(my_toucan_blur, x, y+15, true); } - if (my_smile_xbm.Ok()) + if (my_smile_xbm.IsOk()) { int x = 300, y = 1800; - dc.DrawText( _T("XBM bitmap"), x, y ); - dc.DrawText( _T("(green on red)"), x, y + 15 ); - dc.SetTextForeground( _T("GREEN") ); - dc.SetTextBackground( _T("RED") ); + dc.DrawText( wxT("XBM bitmap"), x, y ); + dc.DrawText( wxT("(green on red)"), x, y + 15 ); + dc.SetTextForeground( wxT("GREEN") ); + dc.SetTextBackground( wxT("RED") ); dc.DrawBitmap( my_smile_xbm, x, y + 30 ); dc.SetTextForeground( *wxBLACK ); - dc.DrawText( _T("After wxImage conversion"), x + 120, y ); - dc.DrawText( _T("(red on white)"), x + 120, y + 15 ); + dc.DrawText( wxT("After wxImage conversion"), x + 120, y ); + dc.DrawText( wxT("(red on white)"), x + 120, y + 15 ); dc.SetTextForeground( wxT("RED") ); wxImage i = my_smile_xbm.ConvertToImage(); i.SetMaskColour( 255, 255, 255 ); @@ -457,7 +549,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) memdc.SetTextForeground( *wxBLACK ); #ifndef __WXGTK20__ // I cannot convince GTK2 to draw into mono bitmaps - memdc.DrawText( _T("Hi!"), 5, 5 ); + memdc.DrawText( wxT("Hi!"), 5, 5 ); #endif memdc.SetBrush( *wxBLACK_BRUSH ); memdc.DrawRectangle( 33,5,20,20 ); @@ -465,19 +557,19 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) memdc.DrawLine( 5, 42, 50, 42 ); memdc.SelectObject( wxNullBitmap ); - if (mono.Ok()) + if (mono.IsOk()) { int x = 300, y = 1900; - dc.DrawText( _T("Mono bitmap"), x, y ); - dc.DrawText( _T("(red on green)"), x, y + 15 ); + dc.DrawText( wxT("Mono bitmap"), x, y ); + dc.DrawText( wxT("(red on green)"), x, y + 15 ); dc.SetTextForeground( wxT("RED") ); dc.SetTextBackground( wxT("GREEN") ); dc.DrawBitmap( mono, x, y + 30 ); dc.SetTextForeground( *wxBLACK ); - dc.DrawText( _T("After wxImage conversion"), x + 120, y ); - dc.DrawText( _T("(red on white)"), x + 120, y + 15 ); + dc.DrawText( wxT("After wxImage conversion"), x + 120, y ); + dc.DrawText( wxT("(red on white)"), x + 120, y + 15 ); dc.SetTextForeground( wxT("RED") ); wxImage i = mono.ConvertToImage(); i.SetMaskColour( 255,255,255 ); @@ -493,31 +585,31 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.SetBrush( *wxRED_BRUSH ); dc.DrawRectangle( 20, 2220, 560, 68 ); - dc.DrawText(_T("XPM bitmap"), 30, 2230 ); - if ( m_bmpSmileXpm.Ok() ) + dc.DrawText(wxT("XPM bitmap"), 30, 2230 ); + if ( m_bmpSmileXpm.IsOk() ) dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true); - dc.DrawText(_T("XPM icon"), 110, 2230 ); - if ( m_iconSmileXpm.Ok() ) + dc.DrawText(wxT("XPM icon"), 110, 2230 ); + if ( m_iconSmileXpm.IsOk() ) dc.DrawIcon(m_iconSmileXpm, 110, 2250); // testing icon -> bitmap conversion wxBitmap to_blit( m_iconSmileXpm ); - if (to_blit.Ok()) + if (to_blit.IsOk()) { - dc.DrawText( _T("SubBitmap"), 170, 2230 ); + dc.DrawText( wxT("SubBitmap"), 170, 2230 ); wxBitmap sub = to_blit.GetSubBitmap( wxRect(0,0,15,15) ); - if (sub.Ok()) + if (sub.IsOk()) dc.DrawBitmap( sub, 170, 2250, true ); - dc.DrawText( _T("Enlarged"), 250, 2230 ); + dc.DrawText( wxT("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); + dc.DrawText( wxT("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 ); @@ -528,20 +620,20 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.SetUserScale( 1.0, 1.0 ); } - dc.DrawText( _T("ICO handler (1st image)"), 30, 2290 ); - if (my_horse_ico32.Ok()) + dc.DrawText( wxT("ICO handler (1st image)"), 30, 2290 ); + if (my_horse_ico32.IsOk()) dc.DrawBitmap( my_horse_ico32, 30, 2330, true ); - dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 ); - if (my_horse_ico16.Ok()) + dc.DrawText( wxT("ICO handler (2nd image)"), 230, 2290 ); + if (my_horse_ico16.IsOk()) dc.DrawBitmap( my_horse_ico16, 230, 2330, true ); - dc.DrawText( _T("ICO handler (best image)"), 430, 2290 ); - if (my_horse_ico.Ok()) + dc.DrawText( wxT("ICO handler (best image)"), 430, 2290 ); + if (my_horse_ico.IsOk()) dc.DrawBitmap( my_horse_ico, 430, 2330, true ); - dc.DrawText( _T("CUR handler"), 30, 2390 ); - if (my_horse_cur.Ok()) + dc.DrawText( wxT("CUR handler"), 30, 2390 ); + if (my_horse_cur.IsOk()) { dc.DrawBitmap( my_horse_cur, 30, 2420, true ); dc.SetPen (*wxRED_PEN); @@ -549,36 +641,43 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.DrawLine (xH,yH-10,xH,yH+10); } - dc.DrawText( _T("ANI handler"), 230, 2390 ); + dc.DrawText( wxT("ANI handler"), 230, 2390 ); for ( int i=0; i < m_ani_images; i++ ) { - if (my_horse_ani[i].Ok()) + if (my_horse_ani[i].IsOk()) { dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true ); } } + + dc.DrawText("PNG from resources", 30, 2460); + if ( my_png_from_res.IsOk() ) + dc.DrawBitmap(my_png_from_res, 30, 2480, true); + dc.DrawText("PNG from memory", 230, 2460); + if ( my_png_from_mem.IsOk() ) + dc.DrawBitmap(my_png_from_mem, 230, 2480, true); } void MyCanvas::CreateAntiAliasedBitmap() { wxBitmap bitmap( 300, 300 ); - wxMemoryDC dc; - - dc.SelectObject( bitmap ); + { + wxMemoryDC dc(bitmap); - dc.Clear(); + dc.Clear(); - dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) ); - dc.SetTextForeground( wxT("RED") ); - dc.DrawText( _T("This is anti-aliased Text."), 20, 5 ); - dc.DrawText( _T("And a Rectangle."), 20, 45 ); + dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) ); + dc.SetTextForeground( wxT("RED") ); + dc.DrawText( wxT("This is anti-aliased Text."), 20, 5 ); + dc.DrawText( wxT("And a Rectangle."), 20, 45 ); - dc.SetBrush( *wxRED_BRUSH ); - dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRoundedRectangle( 20, 85, 200, 180, 20 ); + dc.SetBrush( *wxRED_BRUSH ); + dc.SetPen( *wxTRANSPARENT_PEN ); + dc.DrawRoundedRectangle( 20, 85, 200, 180, 20 ); + } - wxImage original= bitmap.ConvertToImage(); + wxImage original = bitmap.ConvertToImage(); wxImage anti( 150, 150 ); /* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */