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no real change; just reorganize the sample splitting it in two source files

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58102 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi 2009-01-14 17:41:21 +00:00
parent 604898dc4a
commit 09ddabf738
14 changed files with 824 additions and 714 deletions
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4
samples/image/Makefile.in
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@ -50,6 +50,7 @@ IMAGE_CXXFLAGS = -D__WX$(TOOLKIT)__ $(__WXUNIV_DEFINE_p) \
IMAGE_OBJECTS = \
$(__image_os2_lib_res) \
image_image.o \
image_canvas.o \
$(__image___win32rc)
### Conditionally set variables: ###
@ -190,6 +191,9 @@ data:
image_image.o: $(srcdir)/image.cpp
$(CXXC) -c -o $@ $(IMAGE_CXXFLAGS) $(srcdir)/image.cpp
image_canvas.o: $(srcdir)/canvas.cpp
$(CXXC) -c -o $@ $(IMAGE_CXXFLAGS) $(srcdir)/canvas.cpp
image_image_rc.o: $(srcdir)/image.rc
$(WINDRES) -i$< -o$@ --define __WX$(TOOLKIT)__ $(__WXUNIV_DEFINE_p_2) $(__EXCEPTIONS_DEFINE_p_2) $(__RTTI_DEFINE_p_2) $(__THREAD_DEFINE_p_2) --include-dir $(srcdir) $(__DLLFLAG_p_2) --include-dir $(srcdir)/../../samples $(__RCDEFDIR_p_1) --include-dir $(top_srcdir)/include

610
samples/image/canvas.cpp Normal file
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@ -0,0 +1,610 @@
///////////////////////////////////////////////////////////////////////////////
// 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);
}

71
samples/image/canvas.h Normal file
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@ -0,0 +1,71 @@
///////////////////////////////////////////////////////////////////////////////
// Name: samples/image/canvas.h
// 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
///////////////////////////////////////////////////////////////////////////////
#include "wx/scrolwin.h"
//-----------------------------------------------------------------------------
// MyCanvas
//-----------------------------------------------------------------------------
class MyCanvas: public wxScrolledWindow
{
public:
MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
~MyCanvas();
void OnPaint( wxPaintEvent &event );
void CreateAntiAliasedBitmap();
wxBitmap my_horse_png;
wxBitmap my_horse_jpeg;
wxBitmap my_horse_gif;
wxBitmap my_horse_bmp;
wxBitmap my_horse_bmp2;
wxBitmap my_horse_pcx;
wxBitmap my_horse_pnm;
wxBitmap my_horse_tiff;
wxBitmap my_horse_tga;
wxBitmap my_horse_xpm;
wxBitmap my_horse_ico32;
wxBitmap my_horse_ico16;
wxBitmap my_horse_ico;
wxBitmap my_horse_cur;
wxBitmap my_smile_xbm;
wxBitmap my_square;
wxBitmap my_anti;
wxBitmap my_horse_asciigrey_pnm;
wxBitmap my_horse_rawgrey_pnm;
wxBitmap colorized_horse_jpeg;
wxBitmap my_cmyk_jpeg;
wxBitmap my_toucan;
wxBitmap my_toucan_flipped_horiz;
wxBitmap my_toucan_flipped_vert;
wxBitmap my_toucan_flipped_both;
wxBitmap my_toucan_grey;
wxBitmap my_toucan_head;
wxBitmap my_toucan_scaled_normal;
wxBitmap my_toucan_scaled_high;
wxBitmap my_toucan_blur;
int xH, yH;
int m_ani_images;
wxBitmap *my_horse_ani;
private:
wxBitmap m_bmpSmileXpm;
wxIcon m_iconSmileXpm;
DECLARE_EVENT_TABLE()
};

2
samples/image/image.bkl
View File

@ -6,7 +6,7 @@
<include file="../../build/bakefiles/common_samples.bkl"/>
<exe id="image" template="wx_sample" template_append="wx_append">
<sources>image.cpp</sources>
<sources>image.cpp canvas.cpp</sources>
<wx-lib>core</wx-lib>
<wx-lib>base</wx-lib>
<win32-res>image.rc</win32-res>

810
samples/image/image.cpp
View File

@ -2,7 +2,7 @@
// Name: samples/image/image.cpp
// Purpose: sample showing operations with wxImage
// Author: Robert Roebling
// Modified by:
// Modified by: Francesco Montorsi
// Created: 1998
// RCS-ID: $Id$
// Copyright: (c) 1998-2005 Robert Roebling
@ -33,9 +33,6 @@
#include "wx/clipbrd.h"
#endif // wxUSE_CLIPBOARD
#include "smile.xbm"
#include "smile.xpm"
#if defined(__WXMSW__)
#ifdef wxHAVE_RAW_BITMAP
#include "wx/rawbmp.h"
@ -47,70 +44,26 @@
#include "wx/rawbmp.h"
#endif
// derived classes
#include "canvas.h"
class MyFrame;
class MyApp;
// MyCanvas
// ============================================================================
// declarations
// ============================================================================
class MyCanvas: public wxScrolledWindow
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
class MyApp: public wxApp
{
public:
MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
~MyCanvas();
void OnPaint( wxPaintEvent &event );
void CreateAntiAliasedBitmap();
wxBitmap my_horse_png;
wxBitmap my_horse_jpeg;
wxBitmap my_horse_gif;
wxBitmap my_horse_bmp;
wxBitmap my_horse_bmp2;
wxBitmap my_horse_pcx;
wxBitmap my_horse_pnm;
wxBitmap my_horse_tiff;
wxBitmap my_horse_tga;
wxBitmap my_horse_xpm;
wxBitmap my_horse_ico32;
wxBitmap my_horse_ico16;
wxBitmap my_horse_ico;
wxBitmap my_horse_cur;
wxBitmap my_smile_xbm;
wxBitmap my_square;
wxBitmap my_anti;
wxBitmap my_horse_asciigrey_pnm;
wxBitmap my_horse_rawgrey_pnm;
wxBitmap colorized_horse_jpeg;
wxBitmap my_cmyk_jpeg;
wxBitmap my_toucan;
wxBitmap my_toucan_flipped_horiz;
wxBitmap my_toucan_flipped_vert;
wxBitmap my_toucan_flipped_both;
wxBitmap my_toucan_grey;
wxBitmap my_toucan_head;
wxBitmap my_toucan_scaled_normal;
wxBitmap my_toucan_scaled_high;
wxBitmap my_toucan_blur;
int xH, yH ;
int m_ani_images;
wxBitmap *my_horse_ani;
private:
wxBitmap m_bmpSmileXpm;
wxIcon m_iconSmileXpm;
DECLARE_EVENT_TABLE()
virtual bool OnInit();
};
// ----------------------------------------------------------------------------
// MyFrame
// ----------------------------------------------------------------------------
class MyFrame: public wxFrame
{
@ -163,10 +116,10 @@ class MyImageFrame : public wxFrame
public:
MyImageFrame(wxFrame *parent, const wxString& desc, const wxBitmap& bitmap)
: wxFrame(parent, wxID_ANY,
wxString::Format(_T("Image from %s"), desc.c_str()),
wxDefaultPosition, wxDefaultSize,
wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE),
m_bitmap(bitmap)
wxString::Format(_T("Image from %s"), desc.c_str()),
wxDefaultPosition, wxDefaultSize,
wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE),
m_bitmap(bitmap)
{
wxMenu *menu = new wxMenu;
menu->Append(wxID_SAVE);
@ -205,9 +158,9 @@ public:
const wxSize size = GetClientSize();
dc.DrawBitmap(m_bitmap,
(size.x - m_bitmap.GetWidth())/2,
(size.y - m_bitmap.GetHeight())/2,
true /* use mask */);
(size.x - m_bitmap.GetWidth())/2,
(size.y - m_bitmap.GetHeight())/2,
true /* use mask */);
}
void OnSave(wxCommandEvent& WXUNUSED(event))
@ -264,10 +217,10 @@ public:
};
int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"),
_T("Image sample: save file"),
WXSIZEOF(bppchoices),
bppchoices,
this);
_T("Image sample: save file"),
WXSIZEOF(bppchoices),
bppchoices,
this);
if ( bppselection != -1 )
{
int format = bppvalues[bppselection];
@ -307,10 +260,10 @@ public:
};
int sel = wxGetSingleChoiceIndex(_T("Set PNG format"),
_T("Image sample: save file"),
WXSIZEOF(pngchoices),
pngchoices,
this);
_T("Image sample: save file"),
WXSIZEOF(pngchoices),
pngchoices,
this);
if ( sel != -1 )
{
image.SetOption(wxIMAGE_OPTION_PNG_FORMAT, pngvalues[sel]);
@ -398,8 +351,8 @@ public:
MyRawBitmapFrame(wxFrame *parent)
: wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")),
m_bitmap(SIZE, SIZE, 24),
m_alphaBitmap(SIZE, SIZE, 32)
m_bitmap(SIZE, SIZE, 24),
m_alphaBitmap(SIZE, SIZE, 32)
{
SetClientSize(SIZE, SIZE*2+25);
@ -434,7 +387,7 @@ public:
// Then, draw colourful alpha-blended stripes
wxAlphaPixelData data(m_alphaBitmap, wxPoint(BORDER, BORDER),
wxSize(REAL_SIZE, REAL_SIZE));
wxSize(REAL_SIZE, REAL_SIZE));
if ( !data )
{
wxLogError(_T("Failed to gain raw access to bitmap data"));
@ -521,19 +474,14 @@ private:
#endif // wxHAVE_RAW_BITMAP
// MyApp
class MyApp: public wxApp
{
public:
virtual bool OnInit();
};
// ============================================================================
// implementations
// ============================================================================
// main program
IMPLEMENT_APP(MyApp)
// MyCanvas
//-----------------------------------------------------------------------------
// MyImageFrame
//-----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground)
@ -544,6 +492,10 @@ BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_MENU(ID_RESIZE, MyImageFrame::OnResize)
END_EVENT_TABLE()
//-----------------------------------------------------------------------------
// MyRawBitmapFrame
//-----------------------------------------------------------------------------
#ifdef wxHAVE_RAW_BITMAP
BEGIN_EVENT_TABLE(MyRawBitmapFrame, wxFrame)
@ -552,570 +504,9 @@ END_EVENT_TABLE()
#endif // wxHAVE_RAW_BITMAP
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);
}
//-----------------------------------------------------------------------------
// MyFrame
//-----------------------------------------------------------------------------
enum
{
@ -1128,17 +519,15 @@ enum
};
IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
EVT_MENU (ID_QUIT, MyFrame::OnQuit)
EVT_MENU (ID_NEW, MyFrame::OnNewFrame)
EVT_MENU (ID_INFO, MyFrame::OnImageInfo)
EVT_MENU (ID_SHOWTHUMBNAIL, MyFrame::OnThumbnail)
EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
EVT_MENU (ID_QUIT, MyFrame::OnQuit)
EVT_MENU (ID_NEW, MyFrame::OnNewFrame)
EVT_MENU (ID_INFO, MyFrame::OnImageInfo)
EVT_MENU (ID_SHOWTHUMBNAIL, MyFrame::OnThumbnail)
#ifdef wxHAVE_RAW_BITMAP
EVT_MENU (ID_SHOWRAW, MyFrame::OnTestRawBitmap)
EVT_MENU (ID_SHOWRAW, MyFrame::OnTestRawBitmap)
#endif
#if wxUSE_CLIPBOARD
EVT_MENU(wxID_COPY, MyFrame::OnCopy)
EVT_MENU(wxID_PASTE, MyFrame::OnPaste)
@ -1146,58 +535,58 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
END_EVENT_TABLE()
MyFrame::MyFrame()
: wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"),
wxPoint(20, 20), wxSize(950, 700) )
: wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"),
wxPoint(20, 20), wxSize(950, 700) )
{
wxMenuBar *menu_bar = new wxMenuBar();
wxMenuBar *menu_bar = new wxMenuBar();
wxMenu *menuImage = new wxMenu;
menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O"));
menuImage->Append( ID_INFO, _T("Show image &information...\tCtrl-I"));
wxMenu *menuImage = new wxMenu;
menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O"));
menuImage->Append( ID_INFO, _T("Show image &information...\tCtrl-I"));
#ifdef wxHAVE_RAW_BITMAP
menuImage->AppendSeparator();
menuImage->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R"));
menuImage->AppendSeparator();
menuImage->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R"));
#endif
menuImage->AppendSeparator();
menuImage->Append( ID_SHOWTHUMBNAIL, _T("Test &thumbnail...\tCtrl-T"),
"Test scaling the image during load (try with JPEG)");
menuImage->AppendSeparator();
menuImage->Append( ID_ABOUT, _T("&About..."));
menuImage->AppendSeparator();
menuImage->Append( ID_QUIT, _T("E&xit\tCtrl-Q"));
menu_bar->Append(menuImage, _T("&Image"));
menuImage->AppendSeparator();
menuImage->Append( ID_SHOWTHUMBNAIL, _T("Test &thumbnail...\tCtrl-T"),
"Test scaling the image during load (try with JPEG)");
menuImage->AppendSeparator();
menuImage->Append( ID_ABOUT, _T("&About..."));
menuImage->AppendSeparator();
menuImage->Append( ID_QUIT, _T("E&xit\tCtrl-Q"));
menu_bar->Append(menuImage, _T("&Image"));
#if wxUSE_CLIPBOARD
wxMenu *menuClipboard = new wxMenu;
menuClipboard->Append(wxID_COPY, _T("&Copy test image\tCtrl-C"));
menuClipboard->Append(wxID_PASTE, _T("&Paste image\tCtrl-V"));
menu_bar->Append(menuClipboard, _T("&Clipboard"));
wxMenu *menuClipboard = new wxMenu;
menuClipboard->Append(wxID_COPY, _T("&Copy test image\tCtrl-C"));
menuClipboard->Append(wxID_PASTE, _T("&Paste image\tCtrl-V"));
menu_bar->Append(menuClipboard, _T("&Clipboard"));
#endif // wxUSE_CLIPBOARD
SetMenuBar( menu_bar );
SetMenuBar( menu_bar );
#if wxUSE_STATUSBAR
CreateStatusBar(2);
int widths[] = { -1, 100 };
SetStatusWidths( 2, widths );
CreateStatusBar(2);
int widths[] = { -1, 100 };
SetStatusWidths( 2, widths );
#endif // wxUSE_STATUSBAR
m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) );
m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) );
// 500 width * 2750 height
m_canvas->SetScrollbars( 10, 10, 50, 275 );
// 500 width * 2750 height
m_canvas->SetScrollbars( 10, 10, 50, 275 );
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
{
Close( true );
Close( true );
}
void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
(void)wxMessageBox( _T("wxImage demo\n")
_T("Robert Roebling (c) 1998,2000"),
_T("About wxImage Demo"), wxICON_INFORMATION | wxOK );
(void)wxMessageBox( _T("wxImage demo\n")
_T("Robert Roebling (c) 1998,2000"),
_T("About wxImage Demo"), wxICON_INFORMATION | wxOK );
}
wxString MyFrame::LoadUserImage(wxImage& image)
@ -1235,8 +624,8 @@ void MyFrame::OnImageInfo( wxCommandEvent &WXUNUSED(event) )
{
// TODO: show more information about the file
wxString info = wxString::Format("Image size: %dx%d",
image.GetWidth(),
image.GetHeight());
image.GetWidth(),
image.GetHeight());
int xres = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX),
yres = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY);
@ -1311,23 +700,6 @@ void MyFrame::OnPaste(wxCommandEvent& WXUNUSED(event))
#endif // wxUSE_CLIPBOARD
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
wxInitAllImageHandlers();
wxFrame *frame = new MyFrame();
frame->Show( true );
return true;
}
void MyFrame::OnThumbnail( wxCommandEvent &WXUNUSED(event) )
{
#if wxUSE_FILEDLG
@ -1361,3 +733,21 @@ void MyFrame::OnThumbnail( wxCommandEvent &WXUNUSED(event) )
#endif // wxUSE_FILEDLG
}
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
wxInitAllImageHandlers();
wxFrame *frame = new MyFrame();
frame->Show( true );
return true;
}

4
samples/image/image.dsp
View File

@ -252,6 +252,10 @@ LINK32=link.exe
# PROP Default_Filter ""
# Begin Source File
SOURCE=.\canvas.cpp
# End Source File
# Begin Source File
SOURCE=.\image.cpp
# End Source File
# Begin Source File

3
samples/image/image_vc7.vcproj
View File

@ -525,6 +525,9 @@
Name="Source Files"
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
<File
RelativePath=".\canvas.cpp">
</File>
<File
RelativePath=".\image.cpp">
</File>

4
samples/image/image_vc8.vcproj
View File

@ -787,6 +787,10 @@
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
>
<File
RelativePath=".\canvas.cpp"
>
</File>
<File
RelativePath=".\image.cpp"
>

4
samples/image/image_vc9.vcproj
View File

@ -759,6 +759,10 @@
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
>
<File
RelativePath=".\canvas.cpp"
>
</File>
<File
RelativePath=".\image.cpp"
>

6
samples/image/makefile.bcc
View File

@ -35,7 +35,8 @@ IMAGE_CXXFLAGS = $(__RUNTIME_LIBS_7) -I$(BCCDIR)\include $(__DEBUGINFO) \
$(__GFXCTX_DEFINE_p) -I$(SETUPHDIR) -I.\..\..\include -I. $(__DLLFLAG_p) \
-I.\..\..\samples -DNOPCH $(CPPFLAGS) $(CXXFLAGS)
IMAGE_OBJECTS = \
$(OBJS)\image_image.obj
$(OBJS)\image_image.obj \
$(OBJS)\image_canvas.obj
### Conditionally set variables: ###
@ -240,6 +241,9 @@ data:
$(OBJS)\image_image.obj: .\image.cpp
$(CXX) -q -c -P -o$@ $(IMAGE_CXXFLAGS) .\image.cpp
$(OBJS)\image_canvas.obj: .\canvas.cpp
$(CXX) -q -c -P -o$@ $(IMAGE_CXXFLAGS) .\canvas.cpp
$(OBJS)\image_image.res: .\image.rc
brcc32 -32 -r -fo$@ -i$(BCCDIR)\include -d__WXMSW__ $(__WXUNIV_DEFINE_p_1) $(__DEBUG_DEFINE_p_1) $(__EXCEPTIONS_DEFINE_p_1) $(__RTTI_DEFINE_p_1) $(__THREAD_DEFINE_p_1) $(__UNICODE_DEFINE_p_1) $(__MSLU_DEFINE_p_1) $(__GFXCTX_DEFINE_p_1) -i$(SETUPHDIR) -i.\..\..\include -i. $(__DLLFLAG_p_1) -i.\..\..\samples -dNOPCH .\image.rc

4
samples/image/makefile.gcc
View File

@ -29,6 +29,7 @@ IMAGE_CXXFLAGS = $(__DEBUGINFO) $(__OPTIMIZEFLAG_2) $(__THREADSFLAG) \
$(__EXCEPTIONSFLAG_6) -Wno-ctor-dtor-privacy $(CPPFLAGS) $(CXXFLAGS)
IMAGE_OBJECTS = \
$(OBJS)\image_image.o \
$(OBJS)\image_canvas.o \
$(OBJS)\image_image_rc.o
### Conditionally set variables: ###
@ -233,6 +234,9 @@ data:
$(OBJS)\image_image.o: ./image.cpp
$(CXX) -c -o $@ $(IMAGE_CXXFLAGS) $(CPPDEPS) $<
$(OBJS)\image_canvas.o: ./canvas.cpp
$(CXX) -c -o $@ $(IMAGE_CXXFLAGS) $(CPPDEPS) $<
$(OBJS)\image_image_rc.o: ./image.rc
windres --use-temp-file -i$< -o$@ --define __WXMSW__ $(__WXUNIV_DEFINE_p_1) $(__DEBUG_DEFINE_p_1) $(__EXCEPTIONS_DEFINE_p_1) $(__RTTI_DEFINE_p_1) $(__THREAD_DEFINE_p_1) $(__UNICODE_DEFINE_p_1) $(__MSLU_DEFINE_p_1) $(__GFXCTX_DEFINE_p_1) --include-dir $(SETUPHDIR) --include-dir ./../../include --include-dir . $(__DLLFLAG_p_1) --include-dir ./../../samples --define NOPCH

6
samples/image/makefile.unx
View File

@ -57,7 +57,8 @@ WX_CONFIG_FLAGS = $(WX_CONFIG_DEBUG_FLAG) $(WX_CONFIG_UNICODE_FLAG) \
IMAGE_CXXFLAGS = -I. `$(WX_CONFIG) --cxxflags $(WX_CONFIG_FLAGS)` $(CPPFLAGS) \
$(CXXFLAGS)
IMAGE_OBJECTS = \
image_image.o
image_image.o \
image_canvas.o
### Conditionally set variables: ###
@ -103,6 +104,9 @@ image: $(IMAGE_OBJECTS)
image_image.o: ./image.cpp
$(CXX) -c -o $@ $(IMAGE_CXXFLAGS) $(CPPDEPS) $<
image_canvas.o: ./canvas.cpp
$(CXX) -c -o $@ $(IMAGE_CXXFLAGS) $(CPPDEPS) $<
.PHONY: all install uninstall clean

4
samples/image/makefile.vc
View File

@ -30,6 +30,7 @@ IMAGE_CXXFLAGS = /M$(__RUNTIME_LIBS_8)$(__DEBUGRUNTIME_3) /DWIN32 \
$(CPPFLAGS) $(CXXFLAGS)
IMAGE_OBJECTS = \
$(OBJS)\image_image.obj \
$(OBJS)\image_canvas.obj \
$(OBJS)\image_image.res
### Conditionally set variables: ###
@ -316,6 +317,9 @@ data:
$(OBJS)\image_image.obj: .\image.cpp
$(CXX) /c /nologo /TP /Fo$@ $(IMAGE_CXXFLAGS) .\image.cpp
$(OBJS)\image_canvas.obj: .\canvas.cpp
$(CXX) /c /nologo /TP /Fo$@ $(IMAGE_CXXFLAGS) .\canvas.cpp
$(OBJS)\image_image.res: .\image.rc
rc /fo$@ /d WIN32 $(____DEBUGRUNTIME_2_p_1) $(__NO_VC_CRTDBG_p_1) /d __WXMSW__ $(__WXUNIV_DEFINE_p_1) $(__DEBUG_DEFINE_p_1) $(__EXCEPTIONS_DEFINE_p_1) $(__RTTI_DEFINE_p_1) $(__THREAD_DEFINE_p_1) $(__UNICODE_DEFINE_p_1) $(__MSLU_DEFINE_p_1) $(__GFXCTX_DEFINE_p_1) /i $(SETUPHDIR) /i .\..\..\include /i . $(__DLLFLAG_p_1) /d _WINDOWS /i .\..\..\samples /d NOPCH .\image.rc

6
samples/image/makefile.wat
View File

@ -227,7 +227,8 @@ IMAGE_CXXFLAGS = $(__DEBUGINFO_0) $(__OPTIMIZEFLAG_2) $(__THREADSFLAG_5) &
-i=.\..\..\samples -dNOPCH $(__RTTIFLAG_7) $(__EXCEPTIONSFLAG_8) $(CPPFLAGS) &
$(CXXFLAGS)
IMAGE_OBJECTS = &
$(OBJS)\image_image.obj
$(OBJS)\image_image.obj &
$(OBJS)\image_canvas.obj
all : $(OBJS)
@ -265,6 +266,9 @@ data : .SYMBOLIC
$(OBJS)\image_image.obj : .AUTODEPEND .\image.cpp
$(CXX) -bt=nt -zq -fo=$^@ $(IMAGE_CXXFLAGS) $<
$(OBJS)\image_canvas.obj : .AUTODEPEND .\canvas.cpp
$(CXX) -bt=nt -zq -fo=$^@ $(IMAGE_CXXFLAGS) $<
$(OBJS)\image_image.res : .AUTODEPEND .\image.rc
wrc -q -ad -bt=nt -r -fo=$^@ -d__WXMSW__ $(__WXUNIV_DEFINE_p) $(__DEBUG_DEFINE_p) $(__EXCEPTIONS_DEFINE_p) $(__RTTI_DEFINE_p) $(__THREAD_DEFINE_p) $(__UNICODE_DEFINE_p) $(__GFXCTX_DEFINE_p) -i=$(SETUPHDIR) -i=.\..\..\include -i=. $(__DLLFLAG_p) -i=.\..\..\samples -dNOPCH $<