[wxWidgets.git] / samples / image / image.cpp

/*
 * Program: image
 *
 * Author: Robert Roebling
 *
 * Copyright: (C) 1998, Robert Roebling
 *
 */

// 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 "smile.xbm"

// derived classes

class MyFrame;
class MyApp;

// MyCanvas

class MyCanvas: public wxScrolledWindow
{
public:
    MyCanvas() {};
    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_pcx;
    wxBitmap  *my_horse_pnm;
    wxBitmap  *my_horse_tiff;
    wxBitmap  *my_smile_xbm;
    wxBitmap  *my_square;
    wxBitmap  *my_anti;

private:
    DECLARE_DYNAMIC_CLASS(MyCanvas)
    DECLARE_EVENT_TABLE()
};

// MyFrame

class MyFrame: public wxFrame
{
public:
    MyFrame();

    void OnAbout( wxCommandEvent &event );
    void OnQuit( wxCommandEvent &event );

    MyCanvas         *m_canvas;

private:
    DECLARE_DYNAMIC_CLASS(MyFrame)
    DECLARE_EVENT_TABLE()
};

// MyApp

class MyApp: public wxApp
{
public:
    virtual bool OnInit();
};

// main program

IMPLEMENT_APP(MyApp)

// MyCanvas

IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)

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 )
{
    my_horse_png = (wxBitmap*) NULL;
    my_horse_jpeg = (wxBitmap*) NULL;
    my_horse_gif = (wxBitmap*) NULL;
    my_horse_bmp = (wxBitmap*) NULL;
    my_horse_pcx = (wxBitmap*) NULL;
    my_horse_pnm = (wxBitmap*) NULL;
    my_horse_tiff = (wxBitmap*) NULL;
    my_smile_xbm = (wxBitmap*) NULL;
    my_square = (wxBitmap*) NULL;
    my_anti = (wxBitmap*) NULL;

    SetBackgroundColour(* wxWHITE);

    wxBitmap bitmap( 100, 100 );

    wxMemoryDC dc;
    dc.SelectObject( bitmap );
    dc.SetBrush( wxBrush( "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("./horse.png") )
        dir = "./";
    else if ( wxFile::Exists("../horse.png") )
        dir = "../";
    else
        wxLogWarning("Can't find image files in either '.' or '..'!");

    wxImage image( bitmap );

    if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ) )
        wxLogError("Can't save file");

    if ( !image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG ) )
        wxLogError("Can't load PNG image");
    else
        my_horse_png = new wxBitmap( image.ConvertToBitmap() );

    if ( !image.LoadFile( dir + wxString("horse.jpg") ) )
        wxLogError("Can't load JPG image");
    else
        my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );

#if wxUSE_GIF
    if ( !image.LoadFile( dir + wxString("horse.gif") ) )
        wxLogError("Can't load GIF image");
    else
        my_horse_gif = new wxBitmap( image.ConvertToBitmap() );
#endif

#if wxUSE_PCX
    if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
        wxLogError("Can't load PCX image");
    else
        my_horse_pcx = new wxBitmap( image.ConvertToBitmap() );
#endif

    if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
        wxLogError("Can't load BMP image");
    else
        my_horse_bmp = new wxBitmap( image.ConvertToBitmap() );

#if wxUSE_PNM
    if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
        wxLogError("Can't load PNM image");
    else
        my_horse_pnm = new wxBitmap( image.ConvertToBitmap() );
#endif

#if wxUSE_LIBTIFF
    if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
        wxLogError("Can't load TIFF image");
    else
        my_horse_tiff = new wxBitmap( image.ConvertToBitmap() );
#endif

    image.LoadFile( dir + wxString("test.png") );
    my_square = new wxBitmap( image.ConvertToBitmap() );

    CreateAntiAliasedBitmap();

    my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width,
                                 smile_height, 1 );
}

MyCanvas::~MyCanvas()
{
    delete my_horse_pnm;
    delete my_horse_png;
    delete my_horse_jpeg;
    delete my_horse_gif;
    delete my_horse_bmp;
    delete my_horse_pcx;
    delete my_horse_tiff;
    delete my_smile_xbm;
    delete my_square;
    delete my_anti;
}

void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
    wxPaintDC dc( this );
    PrepareDC( dc );

    dc.DrawText( "Loaded image", 30, 10 );
    if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );

    dc.DrawText( "Drawn directly", 150, 10 );
    dc.SetBrush( wxBrush( "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 && my_anti->Ok()) 
        dc.DrawBitmap( *my_anti, 280, 30 );

    dc.DrawText( "PNG handler", 30, 135 );
    if (my_horse_png && 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( "GetSubBitmap()", 280, 190 );
        dc.DrawBitmap( sub, 280, 210 );
    }

    dc.DrawText( "JPEG handler", 30, 365 );
    if (my_horse_jpeg && my_horse_jpeg->Ok()) 
        dc.DrawBitmap( *my_horse_jpeg, 30, 380 );

    dc.DrawText( "GIF handler", 30, 595 );
    if (my_horse_gif && my_horse_gif->Ok()) 
        dc.DrawBitmap( *my_horse_gif, 30, 610 );

    dc.DrawText( "PCX handler", 30, 825 );
    if (my_horse_pcx && my_horse_pcx->Ok()) 
        dc.DrawBitmap( *my_horse_pcx, 30, 840 );

    dc.DrawText( "BMP handler", 30, 1055 );
    if (my_horse_bmp && my_horse_bmp->Ok()) 
        dc.DrawBitmap( *my_horse_bmp, 30, 1070 );

    dc.DrawText( "PNM handler", 30, 1285 );
    if (my_horse_pnm && my_horse_pnm->Ok()) 
        dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
  
    dc.DrawText( "TIFF handler", 30, 1515 );
    if (my_horse_tiff && my_horse_tiff->Ok()) 
        dc.DrawBitmap( *my_horse_tiff, 30, 1530 );

    if (my_smile_xbm && my_smile_xbm->Ok()) 
    {
        dc.DrawText( "XBM bitmap", 30, 1745 );
        dc.SetTextForeground( "RED" );
        dc.SetTextBackground( "GREEN" );
        dc.DrawBitmap( *my_smile_xbm, 30, 1760 );
	
        dc.DrawText( "After wxImage conversion", 150, 1745 );
        wxImage i( *my_smile_xbm );
	    i.SetMaskColour( 0,0,0 );
	    i.Replace( 255,255,255, 
               wxRED_PEN->GetColour().Red(),
               wxRED_PEN->GetColour().Green(),
               wxRED_PEN->GetColour().Blue() );
        dc.DrawBitmap( i.ConvertToBitmap(), 150, 1760, TRUE );
    }
    dc.SetTextForeground( "BLACK" );
    
    wxBitmap mono( 30,30,1 );
    wxMemoryDC memdc;
    memdc.SelectObject( mono );
    memdc.SetPen( *wxTRANSPARENT_PEN );
    memdc.SetBrush( *wxBLACK_BRUSH );
    memdc.DrawRectangle( 0,0,30,30 );
    memdc.SetBrush( *wxWHITE_BRUSH );
    memdc.DrawRectangle( 5,5,20,20 );
    memdc.SelectObject( wxNullBitmap );
    if (mono.Ok()) 
    {
        dc.DrawText( "Mono bitmap", 30, 1845 );
        dc.SetTextForeground( "RED" );
        dc.SetTextBackground( "GREEN" );
        dc.DrawBitmap( mono, 30, 1860 );
	
        dc.DrawText( "After wxImage conversion", 150, 1845 );
        wxImage i( mono );
	    i.SetMaskColour( 0,0,0 );
	    i.Replace( 255,255,255, 
               wxRED_PEN->GetColour().Red(),
               wxRED_PEN->GetColour().Green(),
               wxRED_PEN->GetColour().Blue() );
        dc.DrawBitmap( i.ConvertToBitmap(), 150, 1860, TRUE );
    }
}

void MyCanvas::CreateAntiAliasedBitmap()
{
  wxBitmap bitmap( 300, 300 );

  wxMemoryDC dc;

  dc.SelectObject( bitmap );

  dc.Clear();

  dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
  dc.SetTextForeground( "RED" );
  dc.DrawText( "This is anti-aliased Text.", 20, 20 );
  dc.DrawText( "And a Rectangle.", 20, 60 );

  dc.SetBrush( *wxRED_BRUSH );
  dc.SetPen( *wxTRANSPARENT_PEN );
  dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );

  wxImage original( bitmap );
  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, red, green, blue );
    }
  my_anti = new wxBitmap( anti.ConvertToBitmap() );
}

// MyFrame

const int ID_QUIT  = 108;
const int ID_ABOUT = 109;

IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )

BEGIN_EVENT_TABLE(MyFrame,wxFrame)
  EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
  EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
END_EVENT_TABLE()

MyFrame::MyFrame()
       : wxFrame( (wxFrame *)NULL, -1, "wxImage sample",
                  wxPoint(20,20), wxSize(470,360) )
{
  wxMenu *file_menu = new wxMenu();
  file_menu->Append( ID_ABOUT, "&About..");
  file_menu->Append( ID_QUIT, "E&xit");

  wxMenuBar *menu_bar = new wxMenuBar();
  menu_bar->Append(file_menu, "&File");

  SetMenuBar( menu_bar );

  CreateStatusBar(2);
  int widths[] = { -1, 100 };
  SetStatusWidths( 2, widths );

  m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );

  // 500 width * 1900 height
  m_canvas->SetScrollbars( 10, 10, 50, 200 );
}

void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
{
  Close( TRUE );
}

void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
  (void)wxMessageBox( "wxImage demo\n"
                      "\n"
                      "Robert Roebling (c) 1998",
                      "About wxImage Demo", wxICON_INFORMATION | wxOK );
}

//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------

bool MyApp::OnInit()
{
#if wxUSE_LIBPNG
  wxImage::AddHandler( new wxPNGHandler );
#endif

#if wxUSE_LIBJPEG
  wxImage::AddHandler( new wxJPEGHandler );
#endif

#if wxUSE_LIBTIFF
  wxImage::AddHandler( new wxTIFFHandler );
#endif

#if wxUSE_GIF
  wxImage::AddHandler( new wxGIFHandler );
#endif

#if wxUSE_PCX
  wxImage::AddHandler( new wxPCXHandler );
#endif

#if wxUSE_PNM
  wxImage::AddHandler( new wxPNMHandler );
#endif

  wxFrame *frame = new MyFrame();
  frame->Show( TRUE );

  return TRUE;
}
Commit	Line	Data
01111366 RR	1	/*
01111366 RR	2	* Program: image
1d5b7a0b	3	*
01111366 RR	4	* Author: Robert Roebling
	5	*
	6	* Copyright: (C) 1998, Robert Roebling
	7	*
	8	*/
	9
3d05544e JS	10	// For compilers that support precompilation, includes "wx/wx.h".
	11	#include "wx/wxprec.h"
	12
	13	#ifdef __BORLANDC__
	14	#pragma hdrstop
	15	#endif
	16
	17	#ifndef WX_PRECOMP
01111366	18	#include "wx/wx.h"
3d05544e JS	19	#endif
3d05544e JS	20
01111366 RR	21	#include "wx/image.h"
01111366 RR	22
a23fd0e1 VZ	23	#include "wx/file.h"
a23fd0e1 VZ	24
dc1dbfc6 RL	25	#include "smile.xbm"
dc1dbfc6 RL	26
01111366 RR	27	// derived classes
	28
	29	class MyFrame;
	30	class MyApp;
	31
	32	// MyCanvas
	33
	34	class MyCanvas: public wxScrolledWindow
	35	{
1d5b7a0b VZ	36	public:
1d5b7a0b VZ	37	MyCanvas() {};
01111366	38	MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
1d5b7a0b	39	~MyCanvas();
01111366	40	void OnPaint( wxPaintEvent &event );
9390a202	41	void CreateAntiAliasedBitmap();
1d5b7a0b	42
e1929140 RR	43	wxBitmap *my_horse_png;
	44	wxBitmap *my_horse_jpeg;
	45	wxBitmap *my_horse_gif;
ca26177c	46	wxBitmap *my_horse_bmp;
cbd4be25	47	wxBitmap *my_horse_pcx;
6319afe3	48	wxBitmap *my_horse_pnm;
60a41aee	49	wxBitmap *my_horse_tiff;
dc1dbfc6	50	wxBitmap *my_smile_xbm;
e8fdc264	51	wxBitmap *my_square;
9390a202	52	wxBitmap *my_anti;
1d5b7a0b	53
60a41aee	54	private:
1d5b7a0b VZ	55	DECLARE_DYNAMIC_CLASS(MyCanvas)
1d5b7a0b VZ	56	DECLARE_EVENT_TABLE()
01111366 RR	57	};
	58
	59	// MyFrame
	60
	61	class MyFrame: public wxFrame
	62	{
1d5b7a0b VZ	63	public:
1d5b7a0b VZ	64	MyFrame();
01111366	65
01111366 RR	66	void OnAbout( wxCommandEvent &event );
01111366 RR	67	void OnQuit( wxCommandEvent &event );
1d5b7a0b	68
01111366	69	MyCanvas *m_canvas;
1d5b7a0b	70
60a41aee	71	private:
1d5b7a0b VZ	72	DECLARE_DYNAMIC_CLASS(MyFrame)
1d5b7a0b VZ	73	DECLARE_EVENT_TABLE()
01111366 RR	74	};
	75
	76	// MyApp
	77
	78	class MyApp: public wxApp
	79	{
1d5b7a0b VZ	80	public:
1d5b7a0b VZ	81	virtual bool OnInit();
01111366 RR	82	};
	83
	84	// main program
	85
	86	IMPLEMENT_APP(MyApp)
	87
	88	// MyCanvas
	89
	90	IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
	91
1d5b7a0b VZ	92	BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
1d5b7a0b VZ	93	EVT_PAINT(MyCanvas::OnPaint)
01111366 RR	94	END_EVENT_TABLE()
01111366 RR	95
acbd13a3	96	MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
1d5b7a0b VZ	97	const wxPoint &pos, const wxSize &size )
1d5b7a0b VZ	98	: wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
01111366	99	{
60a41aee RR	100	my_horse_png = (wxBitmap*) NULL;
	101	my_horse_jpeg = (wxBitmap*) NULL;
	102	my_horse_gif = (wxBitmap*) NULL;
	103	my_horse_bmp = (wxBitmap*) NULL;
	104	my_horse_pcx = (wxBitmap*) NULL;
	105	my_horse_pnm = (wxBitmap*) NULL;
	106	my_horse_tiff = (wxBitmap*) NULL;
dc1dbfc6	107	my_smile_xbm = (wxBitmap*) NULL;
60a41aee RR	108	my_square = (wxBitmap*) NULL;
	109	my_anti = (wxBitmap*) NULL;
	110
	111	SetBackgroundColour(* wxWHITE);
	112
	113	wxBitmap bitmap( 100, 100 );
	114
	115	wxMemoryDC dc;
	116	dc.SelectObject( bitmap );
	117	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	118	dc.SetPen( *wxBLACK_PEN );
60a41aee	119	dc.DrawRectangle( 0, 0, 100, 100 );
cf3da716 RR	120	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	121	dc.DrawRectangle( 20, 20, 60, 60 );
60a41aee RR	122	dc.SelectObject( wxNullBitmap );
	123
	124	// try to find the directory with our images
	125	wxString dir;
	126	if ( wxFile::Exists("./horse.png") )
	127	dir = "./";
	128	else if ( wxFile::Exists("../horse.png") )
	129	dir = "../";
	130	else
	131	wxLogWarning("Can't find image files in either '.' or '..'!");
	132
	133	wxImage image( bitmap );
	134
	135	if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ) )
	136	wxLogError("Can't save file");
	137
	138	if ( !image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG ) )
	139	wxLogError("Can't load PNG image");
	140	else
	141	my_horse_png = new wxBitmap( image.ConvertToBitmap() );
	142
	143	if ( !image.LoadFile( dir + wxString("horse.jpg") ) )
	144	wxLogError("Can't load JPG image");
	145	else
	146	my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );
6e47faf1 JS	147
6e47faf1 JS	148	#if wxUSE_GIF
60a41aee RR	149	if ( !image.LoadFile( dir + wxString("horse.gif") ) )
	150	wxLogError("Can't load GIF image");
	151	else
	152	my_horse_gif = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	153	#endif
cbd4be25	154
6e47faf1	155	#if wxUSE_PCX
60a41aee RR	156	if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
	157	wxLogError("Can't load PCX image");
	158	else
	159	my_horse_pcx = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	160	#endif
cbd4be25	161
60a41aee RR	162	if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
	163	wxLogError("Can't load BMP image");
	164	else
	165	my_horse_bmp = new wxBitmap( image.ConvertToBitmap() );
6319afe3	166
6e47faf1	167	#if wxUSE_PNM
60a41aee RR	168	if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
	169	wxLogError("Can't load PNM image");
	170	else
	171	my_horse_pnm = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	172	#endif
f048e32f	173
60a41aee RR	174	#if wxUSE_LIBTIFF
	175	if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
	176	wxLogError("Can't load TIFF image");
	177	else
	178	my_horse_tiff = new wxBitmap( image.ConvertToBitmap() );
	179	#endif
	180
	181	image.LoadFile( dir + wxString("test.png") );
	182	my_square = new wxBitmap( image.ConvertToBitmap() );
f048e32f	183
60a41aee	184	CreateAntiAliasedBitmap();
dc1dbfc6 RL	185
	186	my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width,
	187	smile_height, 1 );
01111366 RR	188	}
01111366 RR	189
1d5b7a0b	190	MyCanvas::~MyCanvas()
01111366	191	{
60a41aee RR	192	delete my_horse_pnm;
	193	delete my_horse_png;
	194	delete my_horse_jpeg;
	195	delete my_horse_gif;
	196	delete my_horse_bmp;
	197	delete my_horse_pcx;
	198	delete my_horse_tiff;
dc1dbfc6	199	delete my_smile_xbm;
60a41aee RR	200	delete my_square;
60a41aee RR	201	delete my_anti;
01111366 RR	202	}
	203
	204	void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
	205	{
be25e480 RR	206	wxPaintDC dc( this );
be25e480 RR	207	PrepareDC( dc );
a91b47e8	208
be25e480 RR	209	dc.DrawText( "Loaded image", 30, 10 );
be25e480 RR	210	if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
f048e32f	211
be25e480 RR	212	dc.DrawText( "Drawn directly", 150, 10 );
be25e480 RR	213	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	214	dc.SetPen( *wxBLACK_PEN );
be25e480	215	dc.DrawRectangle( 150, 30, 100, 100 );
cf3da716 RR	216	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	217	dc.DrawRectangle( 170, 50, 60, 60 );
be25e480 RR	218
	219	if (my_anti && my_anti->Ok())
	220	dc.DrawBitmap( *my_anti, 280, 30 );
	221
	222	dc.DrawText( "PNG handler", 30, 135 );
	223	if (my_horse_png && my_horse_png->Ok())
	224	{
	225	dc.DrawBitmap( *my_horse_png, 30, 150 );
	226	wxRect rect(0,0,100,100);
	227	wxBitmap sub( my_horse_png->GetSubBitmap(rect) );
	228	dc.DrawText( "GetSubBitmap()", 280, 190 );
	229	dc.DrawBitmap( sub, 280, 210 );
	230	}
	231
	232	dc.DrawText( "JPEG handler", 30, 365 );
	233	if (my_horse_jpeg && my_horse_jpeg->Ok())
	234	dc.DrawBitmap( *my_horse_jpeg, 30, 380 );
	235
	236	dc.DrawText( "GIF handler", 30, 595 );
	237	if (my_horse_gif && my_horse_gif->Ok())
	238	dc.DrawBitmap( *my_horse_gif, 30, 610 );
	239
	240	dc.DrawText( "PCX handler", 30, 825 );
	241	if (my_horse_pcx && my_horse_pcx->Ok())
	242	dc.DrawBitmap( *my_horse_pcx, 30, 840 );
	243
	244	dc.DrawText( "BMP handler", 30, 1055 );
	245	if (my_horse_bmp && my_horse_bmp->Ok())
	246	dc.DrawBitmap( *my_horse_bmp, 30, 1070 );
	247
	248	dc.DrawText( "PNM handler", 30, 1285 );
	249	if (my_horse_pnm && my_horse_pnm->Ok())
	250	dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
60a41aee	251
be25e480 RR	252	dc.DrawText( "TIFF handler", 30, 1515 );
be25e480 RR	253	if (my_horse_tiff && my_horse_tiff->Ok())
4b05d973	254	dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
be25e480 RR	255
	256	if (my_smile_xbm && my_smile_xbm->Ok())
	257	{
	258	dc.DrawText( "XBM bitmap", 30, 1745 );
82ea63e6 RR	259	dc.SetTextForeground( "RED" );
82ea63e6 RR	260	dc.SetTextBackground( "GREEN" );
be25e480 RR	261	dc.DrawBitmap( *my_smile_xbm, 30, 1760 );
	262
	263	dc.DrawText( "After wxImage conversion", 150, 1745 );
	264	wxImage i( *my_smile_xbm );
82ea63e6 RR	265	i.SetMaskColour( 0,0,0 );
82ea63e6 RR	266	i.Replace( 255,255,255,
be25e480 RR	267	wxRED_PEN->GetColour().Red(),
	268	wxRED_PEN->GetColour().Green(),
	269	wxRED_PEN->GetColour().Blue() );
	270	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1760, TRUE );
	271	}
82ea63e6 RR	272	dc.SetTextForeground( "BLACK" );
	273
	274	wxBitmap mono( 30,30,1 );
	275	wxMemoryDC memdc;
	276	memdc.SelectObject( mono );
	277	memdc.SetPen( *wxTRANSPARENT_PEN );
	278	memdc.SetBrush( *wxBLACK_BRUSH );
	279	memdc.DrawRectangle( 0,0,30,30 );
	280	memdc.SetBrush( *wxWHITE_BRUSH );
	281	memdc.DrawRectangle( 5,5,20,20 );
	282	memdc.SelectObject( wxNullBitmap );
	283	if (mono.Ok())
	284	{
	285	dc.DrawText( "Mono bitmap", 30, 1845 );
	286	dc.SetTextForeground( "RED" );
	287	dc.SetTextBackground( "GREEN" );
	288	dc.DrawBitmap( mono, 30, 1860 );
	289
	290	dc.DrawText( "After wxImage conversion", 150, 1845 );
	291	wxImage i( mono );
	292	i.SetMaskColour( 0,0,0 );
	293	i.Replace( 255,255,255,
	294	wxRED_PEN->GetColour().Red(),
	295	wxRED_PEN->GetColour().Green(),
	296	wxRED_PEN->GetColour().Blue() );
	297	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1860, TRUE );
	298	}
9390a202	299	}
1d5b7a0b	300
9390a202 RR	301	void MyCanvas::CreateAntiAliasedBitmap()
	302	{
	303	wxBitmap bitmap( 300, 300 );
a91b47e8	304
9390a202	305	wxMemoryDC dc;
a91b47e8	306
9390a202	307	dc.SelectObject( bitmap );
a91b47e8	308
9390a202	309	dc.Clear();
f048e32f	310
6e47faf1	311	dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
9390a202 RR	312	dc.SetTextForeground( "RED" );
	313	dc.DrawText( "This is anti-aliased Text.", 20, 20 );
	314	dc.DrawText( "And a Rectangle.", 20, 60 );
f048e32f	315
9390a202	316	dc.SetBrush( *wxRED_BRUSH );
91b8de8d	317	dc.SetPen( *wxTRANSPARENT_PEN );
9390a202	318	dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
f048e32f	319
9390a202 RR	320	wxImage original( bitmap );
9390a202 RR	321	wxImage anti( 150, 150 );
a91b47e8	322
9390a202	323	/* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
f048e32f	324
9390a202 RR	325	for (int y = 1; y < 149; y++)
	326	for (int x = 1; x < 149; x++)
	327	{
	328	int red = original.GetRed( x2, y2 ) +
f048e32f VZ	329	original.GetRed( x2-1, y2 ) +
f048e32f VZ	330	original.GetRed( x2, y2+1 ) +
9390a202	331	original.GetRed( x2+1, y2+1 );
f048e32f VZ	332	red = red/4;
f048e32f VZ	333
9390a202	334	int green = original.GetGreen( x2, y2 ) +
f048e32f VZ	335	original.GetGreen( x2-1, y2 ) +
f048e32f VZ	336	original.GetGreen( x2, y2+1 ) +
9390a202	337	original.GetGreen( x2+1, y2+1 );
f048e32f VZ	338	green = green/4;
f048e32f VZ	339
9390a202	340	int blue = original.GetBlue( x2, y2 ) +
f048e32f VZ	341	original.GetBlue( x2-1, y2 ) +
f048e32f VZ	342	original.GetBlue( x2, y2+1 ) +
9390a202	343	original.GetBlue( x2+1, y2+1 );
f048e32f	344	blue = blue/4;
9390a202 RR	345	anti.SetRGB( x, y, red, green, blue );
	346	}
	347	my_anti = new wxBitmap( anti.ConvertToBitmap() );
01111366 RR	348	}
	349
	350	// MyFrame
	351
79490c3d VZ	352	const int ID_QUIT = 108;
79490c3d VZ	353	const int ID_ABOUT = 109;
01111366 RR	354
	355	IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
	356
	357	BEGIN_EVENT_TABLE(MyFrame,wxFrame)
	358	EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
	359	EVT_MENU (ID_QUIT, MyFrame::OnQuit)
	360	END_EVENT_TABLE()
	361
1d5b7a0b VZ	362	MyFrame::MyFrame()
	363	: wxFrame( (wxFrame *)NULL, -1, "wxImage sample",
	364	wxPoint(20,20), wxSize(470,360) )
01111366 RR	365	{
01111366 RR	366	wxMenu *file_menu = new wxMenu();
90e58684 RR	367	file_menu->Append( ID_ABOUT, "&About..");
90e58684 RR	368	file_menu->Append( ID_QUIT, "E&xit");
1d5b7a0b	369
01111366	370	wxMenuBar *menu_bar = new wxMenuBar();
90e58684	371	menu_bar->Append(file_menu, "&File");
3d05544e	372
01111366	373	SetMenuBar( menu_bar );
1d5b7a0b	374
917e533b RR	375	CreateStatusBar(2);
	376	int widths[] = { -1, 100 };
	377	SetStatusWidths( 2, widths );
1d5b7a0b	378
fb1585ae	379	m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
cbd4be25	380
dc1dbfc6	381	// 500 width * 1900 height
82ea63e6	382	m_canvas->SetScrollbars( 10, 10, 50, 200 );
01111366 RR	383	}
	384
	385	void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
	386	{
	387	Close( TRUE );
	388	}
	389
	390	void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
	391	{
1d5b7a0b	392	(void)wxMessageBox( "wxImage demo\n"
8a5137d7	393	"\n"
1d5b7a0b VZ	394	"Robert Roebling (c) 1998",
1d5b7a0b VZ	395	"About wxImage Demo", wxICON_INFORMATION \| wxOK );
fb1585ae RR	396	}
fb1585ae RR	397
01111366 RR	398	//-----------------------------------------------------------------------------
	399	// MyApp
	400	//-----------------------------------------------------------------------------
	401
1d5b7a0b	402	bool MyApp::OnInit()
01111366	403	{
e9c4b1a2 JS	404	#if wxUSE_LIBPNG
	405	wxImage::AddHandler( new wxPNGHandler );
	406	#endif
	407
	408	#if wxUSE_LIBJPEG
	409	wxImage::AddHandler( new wxJPEGHandler );
	410	#endif
	411
60a41aee RR	412	#if wxUSE_LIBTIFF
	413	wxImage::AddHandler( new wxTIFFHandler );
	414	#endif
	415
6e47faf1	416	#if wxUSE_GIF
e1929140	417	wxImage::AddHandler( new wxGIFHandler );
6e47faf1 JS	418	#endif
	419
	420	#if wxUSE_PCX
cbd4be25	421	wxImage::AddHandler( new wxPCXHandler );
6e47faf1 JS	422	#endif
	423
	424	#if wxUSE_PNM
6319afe3	425	wxImage::AddHandler( new wxPNMHandler );
6e47faf1	426	#endif
e1929140	427
01111366 RR	428	wxFrame *frame = new MyFrame();
01111366 RR	429	frame->Show( TRUE );
1d5b7a0b	430
01111366 RR	431	return TRUE;
	432	}
	433