X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a83f860948059b0273b5cc6d9e43fadad3ebfca..11e3c6ef36393fb5863ea2f9601d8facd73acb12:/samples/image/canvas.cpp?ds=sidebyside diff --git a/samples/image/canvas.cpp b/samples/image/canvas.cpp index 4f370f6b47..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 ); @@ -243,7 +244,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, #if wxUSE_LIBTIFF image.Destroy(); - if ( !image.LoadFile( dir + wxT("horse.tif"), wxBITMAP_TYPE_TIF ) ) + if ( !image.LoadFile( dir + wxT("horse.tif"), wxBITMAP_TYPE_TIFF ) ) { wxLogError(wxT("Can't load TIFF image")); } @@ -272,7 +273,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, smile_height, 1 ); // demonstrates XPM automatically using the mask when saving - if ( m_bmpSmileXpm.Ok() ) + if ( m_bmpSmileXpm.IsOk() ) m_bmpSmileXpm.SaveFile(wxT("saved.xpm"), wxBITMAP_TYPE_XPM); #if wxUSE_ICO_CUR @@ -376,6 +377,19 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, 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() @@ -389,21 +403,21 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) PrepareDC( dc ); dc.DrawText( wxT("Loaded image"), 30, 10 ); - if (my_square.Ok()) + if (my_square.IsOk()) dc.DrawBitmap( my_square, 30, 30 ); dc.DrawText( wxT("Drawn directly"), 150, 10 ); - dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); + 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( wxT("PNG handler"), 30, 135 ); - if (my_horse_png.Ok()) + if (my_horse_png.IsOk()) { dc.DrawBitmap( my_horse_png, 30, 150 ); wxRect rect(0,0,100,100); @@ -413,55 +427,55 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) } dc.DrawText( wxT("JPEG handler"), 30, 365 ); - if (my_horse_jpeg.Ok()) + if (my_horse_jpeg.IsOk()) dc.DrawBitmap( my_horse_jpeg, 30, 380 ); dc.DrawText( wxT("Green rotated to red"), 280, 365 ); - if (colorized_horse_jpeg.Ok()) + if (colorized_horse_jpeg.IsOk()) dc.DrawBitmap( colorized_horse_jpeg, 280, 380 ); dc.DrawText( wxT("CMYK JPEG image"), 530, 365 ); - if (my_cmyk_jpeg.Ok()) + if (my_cmyk_jpeg.IsOk()) dc.DrawBitmap( my_cmyk_jpeg, 530, 380 ); dc.DrawText( wxT("GIF handler"), 30, 595 ); - if (my_horse_gif.Ok()) + if (my_horse_gif.IsOk()) dc.DrawBitmap( my_horse_gif, 30, 610 ); dc.DrawText( wxT("PCX handler"), 30, 825 ); - if (my_horse_pcx.Ok()) + if (my_horse_pcx.IsOk()) dc.DrawBitmap( my_horse_pcx, 30, 840 ); dc.DrawText( wxT("BMP handler"), 30, 1055 ); - if (my_horse_bmp.Ok()) + if (my_horse_bmp.IsOk()) dc.DrawBitmap( my_horse_bmp, 30, 1070 ); dc.DrawText( wxT("BMP read from memory"), 280, 1055 ); - if (my_horse_bmp2.Ok()) + if (my_horse_bmp2.IsOk()) dc.DrawBitmap( my_horse_bmp2, 280, 1070 ); dc.DrawText( wxT("PNM handler"), 30, 1285 ); - if (my_horse_pnm.Ok()) + if (my_horse_pnm.IsOk()) dc.DrawBitmap( my_horse_pnm, 30, 1300 ); dc.DrawText( wxT("PNM handler (ascii grey)"), 280, 1285 ); - if (my_horse_asciigrey_pnm.Ok()) + if (my_horse_asciigrey_pnm.IsOk()) dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 ); dc.DrawText( wxT("PNM handler (raw grey)"), 530, 1285 ); - if (my_horse_rawgrey_pnm.Ok()) + if (my_horse_rawgrey_pnm.IsOk()) dc.DrawBitmap( my_horse_rawgrey_pnm, 530, 1300 ); dc.DrawText( wxT("TIFF handler"), 30, 1515 ); - if (my_horse_tiff.Ok()) + if (my_horse_tiff.IsOk()) dc.DrawBitmap( my_horse_tiff, 30, 1530 ); dc.DrawText( wxT("TGA handler"), 30, 1745 ); - if (my_horse_tga.Ok()) + if (my_horse_tga.IsOk()) dc.DrawBitmap( my_horse_tga, 30, 1760 ); dc.DrawText( wxT("XPM handler"), 30, 1975 ); - if (my_horse_xpm.Ok()) + if (my_horse_xpm.IsOk()) dc.DrawBitmap( my_horse_xpm, 30, 2000 ); // toucans @@ -501,7 +515,7 @@ 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; @@ -543,7 +557,7 @@ 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; @@ -572,20 +586,20 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.DrawRectangle( 20, 2220, 560, 68 ); dc.DrawText(wxT("XPM bitmap"), 30, 2230 ); - if ( m_bmpSmileXpm.Ok() ) + if ( m_bmpSmileXpm.IsOk() ) dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true); dc.DrawText(wxT("XPM icon"), 110, 2230 ); - if ( m_iconSmileXpm.Ok() ) + 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( 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( wxT("Enlarged"), 250, 2230 ); @@ -607,19 +621,19 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) } dc.DrawText( wxT("ICO handler (1st image)"), 30, 2290 ); - if (my_horse_ico32.Ok()) + if (my_horse_ico32.IsOk()) dc.DrawBitmap( my_horse_ico32, 30, 2330, true ); dc.DrawText( wxT("ICO handler (2nd image)"), 230, 2290 ); - if (my_horse_ico16.Ok()) + if (my_horse_ico16.IsOk()) dc.DrawBitmap( my_horse_ico16, 230, 2330, true ); dc.DrawText( wxT("ICO handler (best image)"), 430, 2290 ); - if (my_horse_ico.Ok()) + if (my_horse_ico.IsOk()) dc.DrawBitmap( my_horse_ico, 430, 2330, true ); dc.DrawText( wxT("CUR handler"), 30, 2390 ); - if (my_horse_cur.Ok()) + if (my_horse_cur.IsOk()) { dc.DrawBitmap( my_horse_cur, 30, 2420, true ); dc.SetPen (*wxRED_PEN); @@ -630,33 +644,40 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) 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( wxT("This is anti-aliased Text."), 20, 5 ); - dc.DrawText( wxT("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. */