[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"
#include "smile.xpm"

// 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;

protected:
    wxBitmap m_bmpSmileXpm;
    wxIcon   m_iconSmileXpm;

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 )
#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW
          , m_bmpSmileXpm((const char **) smile_xpm)
          , m_iconSmileXpm((const char **) smile_xpm)
#endif
{
    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 wxUSE_LIBPNG
    if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ))
        wxLogError("Can't save file");
        
    image.Destroy();

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

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

#if wxUSE_LIBJPEG
    image.Destroy();

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

#if wxUSE_GIF
    image.Destroy();

    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
    image.Destroy();

    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

    image.Destroy();

    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
    image.Destroy();

    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
    image.Destroy();

    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

    CreateAntiAliasedBitmap();

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

#ifndef __WXGTK__
#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW
    // demonstrates XPM automatically using the mask when saving
    if ( m_bmpSmileXpm.Ok() )
        m_bmpSmileXpm.SaveFile("saved.xpm", wxBITMAP_TYPE_XPM);
#endif
#endif
}

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.DrawText( "(green on red)", 30, 1760 );
        dc.SetTextForeground( "GREEN" );
        dc.SetTextBackground( "RED" );
        dc.DrawBitmap( *my_smile_xbm, 30, 1780 );

        dc.SetTextForeground( "BLACK" );
        dc.DrawText( "After wxImage conversion", 150, 1745 );
        dc.DrawText( "(red on white)", 150, 1760 );
        dc.SetTextForeground( "RED" );
        wxImage i( *my_smile_xbm );
        i.SetMaskColour( 255, 255, 255 );
        i.Replace( 0, 0, 0,
               wxRED_PEN->GetColour().Red(),
               wxRED_PEN->GetColour().Green(),
               wxRED_PEN->GetColour().Blue() );
        dc.DrawBitmap( i.ConvertToBitmap(), 150, 1780, TRUE );
        dc.SetTextForeground( "BLACK" );
    }


    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 );
    memdc.DrawText( "Hi!", 5, 5 );
    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())
    {
        dc.DrawText( "Mono bitmap", 30, 1865 );
        dc.DrawText( "(red on green)", 30, 1880 );
        dc.SetTextForeground( "RED" );
        dc.SetTextBackground( "GREEN" );
        dc.DrawBitmap( mono, 30, 1900 );

        dc.SetTextForeground( "BLACK" );
        dc.DrawText( "After wxImage conversion", 150, 1865 );
        dc.DrawText( "(red on white)", 150, 1880 );
        dc.SetTextForeground( "RED" );
        wxImage i( mono );
        i.SetMaskColour( 255,255,255 );
        i.Replace( 0,0,0,
               wxRED_PEN->GetColour().Red(),
               wxRED_PEN->GetColour().Green(),
               wxRED_PEN->GetColour().Blue() );
        dc.DrawBitmap( i.ConvertToBitmap(), 150, 1900, TRUE );
        dc.SetTextForeground( "BLACK" );
    }

    dc.DrawText("XPM bitmap", 30, 2000);
    if ( m_bmpSmileXpm.Ok() )
    {
        dc.DrawBitmap(m_bmpSmileXpm, 30, 2020, TRUE);
    }

    dc.DrawText("XPM icon", 150, 2000);
    if ( m_iconSmileXpm.Ok() )
    {
        dc.DrawIcon(m_iconSmileXpm, 150, 2020);
    }
}

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 * 2100 height
  m_canvas->SetScrollbars( 10, 10, 50, 220 );
}

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

void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
  (void)wxMessageBox( "wxImage demo\n"
                      "Robert Roebling (c) 1998,2000",
                      "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	21	#include "wx/image.h"
a23fd0e1 VZ	22	#include "wx/file.h"
a23fd0e1 VZ	23
dc1dbfc6	24	#include "smile.xbm"
bea56879	25	#include "smile.xpm"
dc1dbfc6	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
bea56879 VZ	54	protected:
	55	wxBitmap m_bmpSmileXpm;
	56	wxIcon m_iconSmileXpm;
	57
60a41aee	58	private:
1d5b7a0b VZ	59	DECLARE_DYNAMIC_CLASS(MyCanvas)
1d5b7a0b VZ	60	DECLARE_EVENT_TABLE()
01111366 RR	61	};
	62
	63	// MyFrame
	64
	65	class MyFrame: public wxFrame
	66	{
1d5b7a0b VZ	67	public:
1d5b7a0b VZ	68	MyFrame();
01111366	69
01111366 RR	70	void OnAbout( wxCommandEvent &event );
01111366 RR	71	void OnQuit( wxCommandEvent &event );
1d5b7a0b	72
01111366	73	MyCanvas *m_canvas;
1d5b7a0b	74
60a41aee	75	private:
1d5b7a0b VZ	76	DECLARE_DYNAMIC_CLASS(MyFrame)
1d5b7a0b VZ	77	DECLARE_EVENT_TABLE()
01111366 RR	78	};
	79
	80	// MyApp
	81
	82	class MyApp: public wxApp
	83	{
1d5b7a0b VZ	84	public:
1d5b7a0b VZ	85	virtual bool OnInit();
01111366 RR	86	};
	87
	88	// main program
	89
	90	IMPLEMENT_APP(MyApp)
	91
	92	// MyCanvas
	93
	94	IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
	95
1d5b7a0b VZ	96	BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
1d5b7a0b VZ	97	EVT_PAINT(MyCanvas::OnPaint)
01111366 RR	98	END_EVENT_TABLE()
01111366 RR	99
acbd13a3	100	MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
1d5b7a0b	101	const wxPoint &pos, const wxSize &size )
81278df2 VZ	102	: wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
	103	#if !defined(__WINDOWS__) \|\| wxUSE_XPM_IN_MSW
	104	, m_bmpSmileXpm((const char **) smile_xpm)
	105	, m_iconSmileXpm((const char **) smile_xpm)
	106	#endif
01111366	107	{
60a41aee RR	108	my_horse_png = (wxBitmap*) NULL;
	109	my_horse_jpeg = (wxBitmap*) NULL;
	110	my_horse_gif = (wxBitmap*) NULL;
	111	my_horse_bmp = (wxBitmap*) NULL;
	112	my_horse_pcx = (wxBitmap*) NULL;
	113	my_horse_pnm = (wxBitmap*) NULL;
	114	my_horse_tiff = (wxBitmap*) NULL;
dc1dbfc6	115	my_smile_xbm = (wxBitmap*) NULL;
60a41aee RR	116	my_square = (wxBitmap*) NULL;
	117	my_anti = (wxBitmap*) NULL;
	118
	119	SetBackgroundColour(* wxWHITE);
	120
	121	wxBitmap bitmap( 100, 100 );
	122
	123	wxMemoryDC dc;
	124	dc.SelectObject( bitmap );
	125	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	126	dc.SetPen( *wxBLACK_PEN );
60a41aee	127	dc.DrawRectangle( 0, 0, 100, 100 );
cf3da716 RR	128	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	129	dc.DrawRectangle( 20, 20, 60, 60 );
60a41aee RR	130	dc.SelectObject( wxNullBitmap );
	131
	132	// try to find the directory with our images
	133	wxString dir;
	134	if ( wxFile::Exists("./horse.png") )
81278df2	135	dir = "./";
60a41aee RR	136	else if ( wxFile::Exists("../horse.png") )
	137	dir = "../";
	138	else
	139	wxLogWarning("Can't find image files in either '.' or '..'!");
	140
	141	wxImage image( bitmap );
	142
bea56879	143	#if wxUSE_LIBPNG
176fe5af	144	if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ))
60a41aee	145	wxLogError("Can't save file");
279ababf	146
176fe5af	147	image.Destroy();
60a41aee	148
cc977e5f RR	149	image.LoadFile( dir + wxString("test.png") );
	150	my_square = new wxBitmap( image.ConvertToBitmap() );
	151
176fe5af	152	image.Destroy();
cc977e5f	153
176fe5af	154	if ( !image.LoadFile( dir + wxString("horse.png")) )
60a41aee RR	155	wxLogError("Can't load PNG image");
	156	else
	157	my_horse_png = new wxBitmap( image.ConvertToBitmap() );
bea56879	158	#endif // wxUSE_LIBPNG
60a41aee	159
bea56879	160	#if wxUSE_LIBJPEG
176fe5af	161	image.Destroy();
279ababf	162
176fe5af	163	if ( !image.LoadFile( dir + wxString("horse.jpg")) )
60a41aee RR	164	wxLogError("Can't load JPG image");
	165	else
	166	my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );
bea56879	167	#endif // wxUSE_LIBJPEG
6e47faf1 JS	168
6e47faf1 JS	169	#if wxUSE_GIF
176fe5af	170	image.Destroy();
279ababf	171
176fe5af	172	if ( !image.LoadFile( dir + wxString("horse.gif")) )
60a41aee RR	173	wxLogError("Can't load GIF image");
	174	else
	175	my_horse_gif = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	176	#endif
cbd4be25	177
6e47faf1	178	#if wxUSE_PCX
176fe5af	179	image.Destroy();
279ababf	180
60a41aee RR	181	if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
	182	wxLogError("Can't load PCX image");
	183	else
	184	my_horse_pcx = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	185	#endif
cbd4be25	186
176fe5af	187	image.Destroy();
279ababf	188
60a41aee RR	189	if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
	190	wxLogError("Can't load BMP image");
	191	else
	192	my_horse_bmp = new wxBitmap( image.ConvertToBitmap() );
6319afe3	193
6e47faf1	194	#if wxUSE_PNM
176fe5af	195	image.Destroy();
279ababf	196
60a41aee RR	197	if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
	198	wxLogError("Can't load PNM image");
	199	else
	200	my_horse_pnm = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	201	#endif
f048e32f	202
60a41aee	203	#if wxUSE_LIBTIFF
176fe5af	204	image.Destroy();
279ababf	205
60a41aee RR	206	if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
	207	wxLogError("Can't load TIFF image");
	208	else
	209	my_horse_tiff = new wxBitmap( image.ConvertToBitmap() );
	210	#endif
	211
60a41aee	212	CreateAntiAliasedBitmap();
dc1dbfc6 RL	213
	214	my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width,
	215	smile_height, 1 );
bfef20bf	216
279ababf	217	#ifndef __WXGTK__
81278df2	218	#if !defined(__WINDOWS__) \|\| wxUSE_XPM_IN_MSW
bfef20bf GRG	219	// demonstrates XPM automatically using the mask when saving
	220	if ( m_bmpSmileXpm.Ok() )
	221	m_bmpSmileXpm.SaveFile("saved.xpm", wxBITMAP_TYPE_XPM);
81278df2	222	#endif
279ababf	223	#endif
01111366 RR	224	}
01111366 RR	225
1d5b7a0b	226	MyCanvas::~MyCanvas()
01111366	227	{
60a41aee RR	228	delete my_horse_pnm;
	229	delete my_horse_png;
	230	delete my_horse_jpeg;
	231	delete my_horse_gif;
	232	delete my_horse_bmp;
	233	delete my_horse_pcx;
	234	delete my_horse_tiff;
dc1dbfc6	235	delete my_smile_xbm;
60a41aee RR	236	delete my_square;
60a41aee RR	237	delete my_anti;
01111366 RR	238	}
	239
	240	void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
	241	{
be25e480 RR	242	wxPaintDC dc( this );
be25e480 RR	243	PrepareDC( dc );
a91b47e8	244
be25e480 RR	245	dc.DrawText( "Loaded image", 30, 10 );
be25e480 RR	246	if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
f048e32f	247
be25e480 RR	248	dc.DrawText( "Drawn directly", 150, 10 );
be25e480 RR	249	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	250	dc.SetPen( *wxBLACK_PEN );
be25e480	251	dc.DrawRectangle( 150, 30, 100, 100 );
cf3da716 RR	252	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	253	dc.DrawRectangle( 170, 50, 60, 60 );
be25e480	254
408b4168	255	if (my_anti && my_anti->Ok())
be25e480 RR	256	dc.DrawBitmap( *my_anti, 280, 30 );
	257
	258	dc.DrawText( "PNG handler", 30, 135 );
	259	if (my_horse_png && my_horse_png->Ok())
408b4168	260	{
be25e480 RR	261	dc.DrawBitmap( *my_horse_png, 30, 150 );
	262	wxRect rect(0,0,100,100);
	263	wxBitmap sub( my_horse_png->GetSubBitmap(rect) );
	264	dc.DrawText( "GetSubBitmap()", 280, 190 );
	265	dc.DrawBitmap( sub, 280, 210 );
	266	}
	267
	268	dc.DrawText( "JPEG handler", 30, 365 );
408b4168	269	if (my_horse_jpeg && my_horse_jpeg->Ok())
be25e480 RR	270	dc.DrawBitmap( *my_horse_jpeg, 30, 380 );
	271
	272	dc.DrawText( "GIF handler", 30, 595 );
408b4168	273	if (my_horse_gif && my_horse_gif->Ok())
be25e480 RR	274	dc.DrawBitmap( *my_horse_gif, 30, 610 );
	275
	276	dc.DrawText( "PCX handler", 30, 825 );
408b4168	277	if (my_horse_pcx && my_horse_pcx->Ok())
be25e480 RR	278	dc.DrawBitmap( *my_horse_pcx, 30, 840 );
	279
	280	dc.DrawText( "BMP handler", 30, 1055 );
408b4168	281	if (my_horse_bmp && my_horse_bmp->Ok())
be25e480 RR	282	dc.DrawBitmap( *my_horse_bmp, 30, 1070 );
	283
	284	dc.DrawText( "PNM handler", 30, 1285 );
408b4168	285	if (my_horse_pnm && my_horse_pnm->Ok())
be25e480	286	dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
408b4168	287
be25e480	288	dc.DrawText( "TIFF handler", 30, 1515 );
408b4168	289	if (my_horse_tiff && my_horse_tiff->Ok())
4b05d973	290	dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
be25e480	291
408b4168	292	if (my_smile_xbm && my_smile_xbm->Ok())
be25e480 RR	293	{
be25e480 RR	294	dc.DrawText( "XBM bitmap", 30, 1745 );
176fe5af GRG	295	dc.DrawText( "(green on red)", 30, 1760 );
	296	dc.SetTextForeground( "GREEN" );
	297	dc.SetTextBackground( "RED" );
	298	dc.DrawBitmap( *my_smile_xbm, 30, 1780 );
408b4168	299
176fe5af	300	dc.SetTextForeground( "BLACK" );
be25e480	301	dc.DrawText( "After wxImage conversion", 150, 1745 );
176fe5af GRG	302	dc.DrawText( "(red on white)", 150, 1760 );
176fe5af GRG	303	dc.SetTextForeground( "RED" );
be25e480	304	wxImage i( *my_smile_xbm );
176fe5af GRG	305	i.SetMaskColour( 255, 255, 255 );
176fe5af GRG	306	i.Replace( 0, 0, 0,
be25e480 RR	307	wxRED_PEN->GetColour().Red(),
	308	wxRED_PEN->GetColour().Green(),
	309	wxRED_PEN->GetColour().Blue() );
176fe5af GRG	310	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1780, TRUE );
176fe5af GRG	311	dc.SetTextForeground( "BLACK" );
be25e480	312	}
176fe5af	313
408b4168	314
41fbc841	315	wxBitmap mono( 60,50,1 );
82ea63e6 RR	316	wxMemoryDC memdc;
82ea63e6 RR	317	memdc.SelectObject( mono );
bfef20bf	318	memdc.SetPen( *wxBLACK_PEN );
82ea63e6	319	memdc.SetBrush( *wxWHITE_BRUSH );
41fbc841 RR	320	memdc.DrawRectangle( 0,0,60,50 );
	321	memdc.SetTextForeground( *wxBLACK );
	322	memdc.DrawText( "Hi!", 5, 5 );
	323	memdc.SetBrush( *wxBLACK_BRUSH );
	324	memdc.DrawRectangle( 33,5,20,20 );
	325	memdc.SetPen( *wxRED_PEN );
	326	memdc.DrawLine( 5, 42, 50, 42 );
82ea63e6	327	memdc.SelectObject( wxNullBitmap );
176fe5af	328
408b4168	329	if (mono.Ok())
82ea63e6	330	{
176fe5af GRG	331	dc.DrawText( "Mono bitmap", 30, 1865 );
176fe5af GRG	332	dc.DrawText( "(red on green)", 30, 1880 );
82ea63e6 RR	333	dc.SetTextForeground( "RED" );
82ea63e6 RR	334	dc.SetTextBackground( "GREEN" );
176fe5af	335	dc.DrawBitmap( mono, 30, 1900 );
408b4168	336
bea56879	337	dc.SetTextForeground( "BLACK" );
176fe5af GRG	338	dc.DrawText( "After wxImage conversion", 150, 1865 );
176fe5af GRG	339	dc.DrawText( "(red on white)", 150, 1880 );
bea56879	340	dc.SetTextForeground( "RED" );
82ea63e6	341	wxImage i( mono );
408b4168 VZ	342	i.SetMaskColour( 255,255,255 );
408b4168 VZ	343	i.Replace( 0,0,0,
82ea63e6 RR	344	wxRED_PEN->GetColour().Red(),
	345	wxRED_PEN->GetColour().Green(),
	346	wxRED_PEN->GetColour().Blue() );
176fe5af	347	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1900, TRUE );
bea56879 VZ	348	dc.SetTextForeground( "BLACK" );
	349	}
	350
176fe5af	351	dc.DrawText("XPM bitmap", 30, 2000);
bea56879 VZ	352	if ( m_bmpSmileXpm.Ok() )
bea56879 VZ	353	{
176fe5af	354	dc.DrawBitmap(m_bmpSmileXpm, 30, 2020, TRUE);
bea56879 VZ	355	}
bea56879 VZ	356
176fe5af	357	dc.DrawText("XPM icon", 150, 2000);
bea56879 VZ	358	if ( m_iconSmileXpm.Ok() )
bea56879 VZ	359	{
176fe5af	360	dc.DrawIcon(m_iconSmileXpm, 150, 2020);
82ea63e6	361	}
9390a202	362	}
1d5b7a0b	363
9390a202 RR	364	void MyCanvas::CreateAntiAliasedBitmap()
	365	{
	366	wxBitmap bitmap( 300, 300 );
a91b47e8	367
9390a202	368	wxMemoryDC dc;
a91b47e8	369
9390a202	370	dc.SelectObject( bitmap );
a91b47e8	371
9390a202	372	dc.Clear();
f048e32f	373
6e47faf1	374	dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
9390a202 RR	375	dc.SetTextForeground( "RED" );
	376	dc.DrawText( "This is anti-aliased Text.", 20, 20 );
	377	dc.DrawText( "And a Rectangle.", 20, 60 );
f048e32f	378
9390a202	379	dc.SetBrush( *wxRED_BRUSH );
91b8de8d	380	dc.SetPen( *wxTRANSPARENT_PEN );
9390a202	381	dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
f048e32f	382
9390a202 RR	383	wxImage original( bitmap );
9390a202 RR	384	wxImage anti( 150, 150 );
a91b47e8	385
9390a202	386	/* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
f048e32f	387
9390a202 RR	388	for (int y = 1; y < 149; y++)
	389	for (int x = 1; x < 149; x++)
	390	{
	391	int red = original.GetRed( x2, y2 ) +
f048e32f VZ	392	original.GetRed( x2-1, y2 ) +
f048e32f VZ	393	original.GetRed( x2, y2+1 ) +
9390a202	394	original.GetRed( x2+1, y2+1 );
f048e32f VZ	395	red = red/4;
f048e32f VZ	396
9390a202	397	int green = original.GetGreen( x2, y2 ) +
f048e32f VZ	398	original.GetGreen( x2-1, y2 ) +
f048e32f VZ	399	original.GetGreen( x2, y2+1 ) +
9390a202	400	original.GetGreen( x2+1, y2+1 );
f048e32f VZ	401	green = green/4;
f048e32f VZ	402
9390a202	403	int blue = original.GetBlue( x2, y2 ) +
f048e32f VZ	404	original.GetBlue( x2-1, y2 ) +
f048e32f VZ	405	original.GetBlue( x2, y2+1 ) +
9390a202	406	original.GetBlue( x2+1, y2+1 );
f048e32f	407	blue = blue/4;
9390a202 RR	408	anti.SetRGB( x, y, red, green, blue );
	409	}
	410	my_anti = new wxBitmap( anti.ConvertToBitmap() );
01111366 RR	411	}
	412
	413	// MyFrame
	414
79490c3d VZ	415	const int ID_QUIT = 108;
79490c3d VZ	416	const int ID_ABOUT = 109;
01111366 RR	417
	418	IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
	419
	420	BEGIN_EVENT_TABLE(MyFrame,wxFrame)
	421	EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
	422	EVT_MENU (ID_QUIT, MyFrame::OnQuit)
	423	END_EVENT_TABLE()
	424
1d5b7a0b VZ	425	MyFrame::MyFrame()
	426	: wxFrame( (wxFrame *)NULL, -1, "wxImage sample",
	427	wxPoint(20,20), wxSize(470,360) )
01111366 RR	428	{
01111366 RR	429	wxMenu *file_menu = new wxMenu();
81278df2	430	file_menu->Append( ID_ABOUT, "&About...");
90e58684	431	file_menu->Append( ID_QUIT, "E&xit");
1d5b7a0b	432
01111366	433	wxMenuBar *menu_bar = new wxMenuBar();
90e58684	434	menu_bar->Append(file_menu, "&File");
3d05544e	435
01111366	436	SetMenuBar( menu_bar );
1d5b7a0b	437
917e533b RR	438	CreateStatusBar(2);
	439	int widths[] = { -1, 100 };
	440	SetStatusWidths( 2, widths );
1d5b7a0b	441
fb1585ae	442	m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
cbd4be25	443
bea56879	444	// 500 width * 2100 height
176fe5af	445	m_canvas->SetScrollbars( 10, 10, 50, 220 );
01111366 RR	446	}
	447
	448	void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
	449	{
	450	Close( TRUE );
	451	}
	452
	453	void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
	454	{
1d5b7a0b	455	(void)wxMessageBox( "wxImage demo\n"
41fbc841	456	"Robert Roebling (c) 1998,2000",
1d5b7a0b	457	"About wxImage Demo", wxICON_INFORMATION \| wxOK );
fb1585ae RR	458	}
fb1585ae RR	459
01111366 RR	460	//-----------------------------------------------------------------------------
	461	// MyApp
	462	//-----------------------------------------------------------------------------
	463
1d5b7a0b	464	bool MyApp::OnInit()
01111366	465	{
e9c4b1a2 JS	466	#if wxUSE_LIBPNG
	467	wxImage::AddHandler( new wxPNGHandler );
	468	#endif
	469
	470	#if wxUSE_LIBJPEG
	471	wxImage::AddHandler( new wxJPEGHandler );
	472	#endif
	473
60a41aee RR	474	#if wxUSE_LIBTIFF
	475	wxImage::AddHandler( new wxTIFFHandler );
	476	#endif
	477
6e47faf1	478	#if wxUSE_GIF
e1929140	479	wxImage::AddHandler( new wxGIFHandler );
6e47faf1 JS	480	#endif
	481
	482	#if wxUSE_PCX
cbd4be25	483	wxImage::AddHandler( new wxPCXHandler );
6e47faf1 JS	484	#endif
	485
	486	#if wxUSE_PNM
6319afe3	487	wxImage::AddHandler( new wxPNMHandler );
6e47faf1	488	#endif
e1929140	489
01111366 RR	490	wxFrame *frame = new MyFrame();
01111366 RR	491	frame->Show( TRUE );
1d5b7a0b	492
01111366 RR	493	return TRUE;
	494	}
	495