4ca8531f61
Having wxBITMAP_TYPE_TIFF and wxBITMAP_TYPE_TIFF_RESOURCE is more consistent with already using the complete short name of an image format elsewhere (e.g. wxBITMAP_TYPE_JPEG, not wxBTMAP_TYPE_JPG, and wxTIFFHandler as opposed to wxTIFHandler). Renamed all existing occurrences and kept the old enum values for backwards compatibility. Also renamed occurrences of wxBITMAP_TYPE_RESOURCE to the already existing wxBITMAP_TYPE_BMP_RESOURCE. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68859 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
689 lines
19 KiB
C++
689 lines
19 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// 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
|
|
// Licence: 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 + wxT("test.png"), wxBITMAP_TYPE_PNG ))
|
|
{
|
|
wxLogError(wxT("Can't save file"));
|
|
}
|
|
|
|
image.Destroy();
|
|
|
|
if ( image.LoadFile( dir + wxT("test.png") ) )
|
|
my_square = wxBitmap( image );
|
|
|
|
image.Destroy();
|
|
|
|
if ( !image.LoadFile( dir + wxT("horse.png")) )
|
|
{
|
|
wxLogError(wxT("Can't load PNG image"));
|
|
}
|
|
else
|
|
{
|
|
my_horse_png = wxBitmap( image );
|
|
}
|
|
|
|
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));
|
|
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 + wxT("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 + 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 + 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 + 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 + 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 + wxT("horse.xpm"), wxBITMAP_TYPE_XPM ) )
|
|
{
|
|
wxLogError(wxT("Can't load XPM image"));
|
|
}
|
|
else
|
|
{
|
|
my_horse_xpm = wxBitmap( image );
|
|
}
|
|
|
|
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 + 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 + 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 + 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 + 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 + wxT("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.IsOk() )
|
|
m_bmpSmileXpm.SaveFile(wxT("saved.xpm"), wxBITMAP_TYPE_XPM);
|
|
|
|
#if wxUSE_ICO_CUR
|
|
image.Destroy();
|
|
|
|
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 + 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 + wxT("horse.ico") ) )
|
|
{
|
|
wxLogError(wxT("Can't load best ICO image"));
|
|
}
|
|
else
|
|
{
|
|
my_horse_ico = wxBitmap( image );
|
|
}
|
|
|
|
image.Destroy();
|
|
|
|
if ( !image.LoadFile( dir + wxT("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 + 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 + wxT("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 + 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(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);
|
|
}
|
|
}
|
|
|
|
MyCanvas::~MyCanvas()
|
|
{
|
|
delete [] my_horse_ani;
|
|
}
|
|
|
|
void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
|
|
{
|
|
wxPaintDC dc( this );
|
|
PrepareDC( dc );
|
|
|
|
dc.DrawText( wxT("Loaded image"), 30, 10 );
|
|
if (my_square.IsOk())
|
|
dc.DrawBitmap( my_square, 30, 30 );
|
|
|
|
dc.DrawText( wxT("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.IsOk())
|
|
dc.DrawBitmap( my_anti, 280, 30 );
|
|
|
|
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( wxT("GetSubBitmap()"), 280, 175 );
|
|
dc.DrawBitmap( sub, 280, 195 );
|
|
}
|
|
|
|
dc.DrawText( wxT("JPEG handler"), 30, 365 );
|
|
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.IsOk())
|
|
dc.DrawBitmap( colorized_horse_jpeg, 280, 380 );
|
|
|
|
dc.DrawText( wxT("CMYK JPEG image"), 530, 365 );
|
|
if (my_cmyk_jpeg.IsOk())
|
|
dc.DrawBitmap( my_cmyk_jpeg, 530, 380 );
|
|
|
|
dc.DrawText( wxT("GIF handler"), 30, 595 );
|
|
if (my_horse_gif.IsOk())
|
|
dc.DrawBitmap( my_horse_gif, 30, 610 );
|
|
|
|
dc.DrawText( wxT("PCX handler"), 30, 825 );
|
|
if (my_horse_pcx.IsOk())
|
|
dc.DrawBitmap( my_horse_pcx, 30, 840 );
|
|
|
|
dc.DrawText( wxT("BMP handler"), 30, 1055 );
|
|
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.IsOk())
|
|
dc.DrawBitmap( my_horse_bmp2, 280, 1070 );
|
|
|
|
dc.DrawText( wxT("PNM handler"), 30, 1285 );
|
|
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.IsOk())
|
|
dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 );
|
|
|
|
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( wxT("TIFF handler"), 30, 1515 );
|
|
if (my_horse_tiff.IsOk())
|
|
dc.DrawBitmap( my_horse_tiff, 30, 1530 );
|
|
|
|
dc.DrawText( wxT("TGA handler"), 30, 1745 );
|
|
if (my_horse_tga.IsOk())
|
|
dc.DrawBitmap( my_horse_tga, 30, 1760 );
|
|
|
|
dc.DrawText( wxT("XPM handler"), 30, 1975 );
|
|
if (my_horse_xpm.IsOk())
|
|
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.IsOk())
|
|
{
|
|
int x = 300, y = 1800;
|
|
|
|
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( 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 );
|
|
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( wxT("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.IsOk())
|
|
{
|
|
int x = 300, y = 1900;
|
|
|
|
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( 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 );
|
|
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(wxT("XPM bitmap"), 30, 2230 );
|
|
if ( m_bmpSmileXpm.IsOk() )
|
|
dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true);
|
|
|
|
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.IsOk())
|
|
{
|
|
dc.DrawText( wxT("SubBitmap"), 170, 2230 );
|
|
wxBitmap sub = to_blit.GetSubBitmap( wxRect(0,0,15,15) );
|
|
if (sub.IsOk())
|
|
dc.DrawBitmap( sub, 170, 2250, true );
|
|
|
|
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( 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 );
|
|
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( wxT("ICO handler (1st image)"), 30, 2290 );
|
|
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.IsOk())
|
|
dc.DrawBitmap( my_horse_ico16, 230, 2330, true );
|
|
|
|
dc.DrawText( wxT("ICO handler (best image)"), 430, 2290 );
|
|
if (my_horse_ico.IsOk())
|
|
dc.DrawBitmap( my_horse_ico, 430, 2330, true );
|
|
|
|
dc.DrawText( wxT("CUR handler"), 30, 2390 );
|
|
if (my_horse_cur.IsOk())
|
|
{
|
|
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( wxT("ANI handler"), 230, 2390 );
|
|
for ( int i=0; i < m_ani_images; i++ )
|
|
{
|
|
if (my_horse_ani[i].IsOk())
|
|
{
|
|
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(bitmap);
|
|
|
|
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.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);
|
|
}
|