+///////////////////////////////////////////////////////////////////////////////
+// Name: samples/image/canvas.cpp
+// Purpose: sample showing operations with wxImage
+// Author: Robert Roebling
+// Modified by: Francesco Montorsi
+// Created: 1998
+// RCS-ID: $Id$
+// Copyright: (c) 1998-2005 Robert Roebling
+// License: wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx/wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+ #include "wx/wx.h"
+#endif
+
+#include "wx/image.h"
+#include "wx/file.h"
+#include "wx/filename.h"
+#include "wx/mstream.h"
+#include "wx/wfstream.h"
+#include "wx/quantize.h"
+#include "wx/stopwatch.h"
+
+#if wxUSE_CLIPBOARD
+ #include "wx/dataobj.h"
+ #include "wx/clipbrd.h"
+#endif // wxUSE_CLIPBOARD
+
+#include "smile.xbm"
+#include "smile.xpm"
+
+#include "canvas.h"
+
+
+//-----------------------------------------------------------------------------
+// MyCanvas
+//-----------------------------------------------------------------------------
+
+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(smile_xpm)
+ , m_iconSmileXpm(smile_xpm)
+{
+ my_horse_ani = 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 = wxBitmap( image );
+
+ image.Destroy();
+
+ if ( !image.LoadFile( dir + _T("horse.png")) )
+ wxLogError(wxT("Can't load PNG image"));
+ else
+ my_horse_png = wxBitmap( image );
+
+ if ( !image.LoadFile( dir + _T("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));
+ my_toucan_flipped_both = wxBitmap(image.Mirror(true).Mirror(false));
+ my_toucan_grey = wxBitmap(image.ConvertToGreyscale());
+ my_toucan_head = wxBitmap(image.GetSubImage(wxRect(40, 7, 80, 60)));
+ my_toucan_scaled_normal = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_NORMAL));
+ my_toucan_scaled_high = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_HIGH));
+ my_toucan_blur = wxBitmap(image.Blur(10));
+
+#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 = wxBitmap( image );
+
+ // Colorize by rotating green hue to red
+ wxImage::HSVValue greenHSV = wxImage::RGBtoHSV(wxImage::RGBValue(0, 255, 0));
+ wxImage::HSVValue redHSV = wxImage::RGBtoHSV(wxImage::RGBValue(255, 0, 0));
+ image.RotateHue(redHSV.hue - greenHSV.hue);
+ colorized_horse_jpeg = wxBitmap( image );
+ }
+
+ if ( !image.LoadFile( dir + _T("cmyk.jpg")) )
+ wxLogError(_T("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" )) )
+ 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 ) )
+ 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 ) )
+ 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 ) )
+ wxLogError(wxT("Can't load XPM image"));
+ else
+ my_horse_xpm = 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 = wxBitmap( image );
+
+ image.Destroy();
+
+ if ( !image.LoadFile( dir + _T("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 ) )
+ 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 ) )
+ 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 ) )
+ wxLogError(wxT("Can't load TGA image"));
+ else
+ my_horse_tga = wxBitmap( image );
+#endif
+
+ CreateAntiAliasedBitmap();
+
+ my_smile_xbm = 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 = 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 = wxBitmap( image );
+
+ image.Destroy();
+
+ if ( !image.LoadFile( dir + _T("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 ) )
+ wxLogError(wxT("Can't load best ICO image"));
+ else
+ {
+ my_horse_cur = 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() )
+ {
+ 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"));
+ 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);
+ }
+}
+
+MyCanvas::~MyCanvas()
+{
+ delete [] my_horse_ani;
+}
+
+void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
+{
+ wxPaintDC dc( this );
+ PrepareDC( dc );
+
+ dc.DrawText( _T("Loaded image"), 30, 10 );
+ if (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.Ok())
+ dc.DrawBitmap( my_anti, 280, 30 );
+
+ dc.DrawText( _T("PNG handler"), 30, 135 );
+ if (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, 175 );
+ dc.DrawBitmap( sub, 280, 195 );
+ }
+
+ dc.DrawText( _T("JPEG handler"), 30, 365 );
+ if (my_horse_jpeg.Ok())
+ dc.DrawBitmap( my_horse_jpeg, 30, 380 );
+
+ dc.DrawText( _T("Green rotated to red"), 280, 365 );
+ if (colorized_horse_jpeg.Ok())
+ dc.DrawBitmap( colorized_horse_jpeg, 280, 380 );
+
+ dc.DrawText( _T("CMYK JPEG image"), 530, 365 );
+ if (my_cmyk_jpeg.Ok())
+ dc.DrawBitmap( my_cmyk_jpeg, 530, 380 );
+
+ dc.DrawText( _T("GIF handler"), 30, 595 );
+ if (my_horse_gif.Ok())
+ dc.DrawBitmap( my_horse_gif, 30, 610 );
+
+ dc.DrawText( _T("PCX handler"), 30, 825 );
+ if (my_horse_pcx.Ok())
+ dc.DrawBitmap( my_horse_pcx, 30, 840 );
+
+ dc.DrawText( _T("BMP handler"), 30, 1055 );
+ if (my_horse_bmp.Ok())
+ dc.DrawBitmap( my_horse_bmp, 30, 1070 );
+
+ dc.DrawText( _T("BMP read from memory"), 280, 1055 );
+ if (my_horse_bmp2.Ok())
+ dc.DrawBitmap( my_horse_bmp2, 280, 1070 );
+
+ dc.DrawText( _T("PNM handler"), 30, 1285 );
+ if (my_horse_pnm.Ok())
+ dc.DrawBitmap( my_horse_pnm, 30, 1300 );
+
+ dc.DrawText( _T("PNM handler (ascii grey)"), 280, 1285 );
+ if (my_horse_asciigrey_pnm.Ok())
+ dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 );
+
+ dc.DrawText( _T("PNM handler (raw grey)"), 530, 1285 );
+ if (my_horse_rawgrey_pnm.Ok())
+ dc.DrawBitmap( my_horse_rawgrey_pnm, 530, 1300 );
+
+ dc.DrawText( _T("TIFF handler"), 30, 1515 );
+ if (my_horse_tiff.Ok())
+ dc.DrawBitmap( my_horse_tiff, 30, 1530 );
+
+ dc.DrawText( _T("TGA handler"), 30, 1745 );
+ if (my_horse_tga.Ok())
+ dc.DrawBitmap( my_horse_tga, 30, 1760 );
+
+ dc.DrawText( _T("XPM handler"), 30, 1975 );
+ if (my_horse_xpm.Ok())
+ dc.DrawBitmap( my_horse_xpm, 30, 2000 );
+
+ // toucans
+ {
+ int x = 750, y = 10, yy = 170;
+
+ dc.DrawText(wxT("Original toucan"), x+50, y);
+ dc.DrawBitmap(my_toucan, x, y+15, true);
+ y += yy;
+ dc.DrawText(wxT("Flipped horizontally"), x+50, y);
+ dc.DrawBitmap(my_toucan_flipped_horiz, x, y+15, true);
+ y += yy;
+ dc.DrawText(wxT("Flipped vertically"), x+50, y);
+ dc.DrawBitmap(my_toucan_flipped_vert, x, y+15, true);
+ y += yy;
+ dc.DrawText(wxT("Flipped both h&v"), x+50, y);
+ dc.DrawBitmap(my_toucan_flipped_both, x, y+15, true);
+
+ y += yy;
+ dc.DrawText(wxT("In greyscale"), x+50, y);
+ dc.DrawBitmap(my_toucan_grey, x, y+15, true);
+
+ y += yy;
+ dc.DrawText(wxT("Toucan's head"), x+50, y);
+ dc.DrawBitmap(my_toucan_head, x, y+15, true);
+
+ y += yy;
+ dc.DrawText(wxT("Scaled with normal quality"), x+50, y);
+ dc.DrawBitmap(my_toucan_scaled_normal, x, y+15, true);
+
+ y += yy;
+ dc.DrawText(wxT("Scaled with high quality"), x+50, y);
+ dc.DrawBitmap(my_toucan_scaled_high, x, y+15, true);
+
+ y += yy;
+ dc.DrawText(wxT("Blured"), x+50, y);
+ dc.DrawBitmap(my_toucan_blur, x, y+15, true);
+ }
+
+ if (my_smile_xbm.Ok())
+ {
+ 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.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.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), x + 120, y + 30, true );
+ dc.SetTextForeground( *wxBLACK );
+ }
+
+
+ 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())
+ {
+ int x = 300, y = 1900;
+
+ dc.DrawText( _T("Mono bitmap"), x, y );
+ dc.DrawText( _T("(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.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), x + 120, y + 30, true );
+ dc.SetTextForeground( *wxBLACK );
+ }
+
+ // 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.Ok())
+ dc.DrawBitmap( my_horse_ico32, 30, 2330, true );
+
+ dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 );
+ if (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.Ok())
+ dc.DrawBitmap( my_horse_ico, 430, 2330, true );
+
+ dc.DrawText( _T("CUR handler"), 30, 2390 );
+ if (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 );
+ for ( int 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, 5 );
+ dc.DrawText( _T("And a Rectangle."), 20, 45 );
+
+ dc.SetBrush( *wxRED_BRUSH );
+ dc.SetPen( *wxTRANSPARENT_PEN );
+ dc.DrawRoundedRectangle( 20, 85, 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 = wxBitmap(anti);
+}
projects / wxWidgets.git / commitdiff
