[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
    image.LoadFile( dir + wxString("test.png") );
    my_square = new wxBitmap( image.ConvertToBitmap() );
    
    if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ) )
        wxLogError("Can't save file");
        
    image = wxImage( 100, 100 );

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

#if wxUSE_LIBJPEG
    image = wxImage( 100, 100 );

    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 = wxImage( 100, 100 );

    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 = wxImage( 100, 100 );

    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 = wxImage( 100, 100 );

    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 = wxImage( 100, 100 );

    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 = wxImage( 100, 100 );

    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.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( 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, 1845 );
        dc.SetTextForeground( "RED" );
        dc.SetTextBackground( "GREEN" );
        dc.DrawBitmap( mono, 30, 1860 );

        dc.SetTextForeground( "BLACK" );
        dc.DrawText( "After wxImage conversion", 150, 1845 );
        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, 1860, TRUE );
        dc.SetTextForeground( "BLACK" );
    }

    dc.DrawText("XPM bitmap", 30, 1950);
    if ( m_bmpSmileXpm.Ok() )
    {
        dc.DrawBitmap(m_bmpSmileXpm, 30, 1975, TRUE);
    }

    dc.DrawText("XPM icon", 150, 1950);
    if ( m_iconSmileXpm.Ok() )
    {
        dc.DrawIcon(m_iconSmileXpm, 150, 1975);
    }
}

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, 210 );
}

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 RR	21	#include "wx/image.h"
01111366 RR	22
a23fd0e1 VZ	23	#include "wx/file.h"
a23fd0e1 VZ	24
dc1dbfc6	25	#include "smile.xbm"
bea56879	26	#include "smile.xpm"
dc1dbfc6	27
01111366 RR	28	// derived classes
	29
	30	class MyFrame;
	31	class MyApp;
	32
	33	// MyCanvas
	34
	35	class MyCanvas: public wxScrolledWindow
	36	{
1d5b7a0b VZ	37	public:
1d5b7a0b VZ	38	MyCanvas() {};
01111366	39	MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
1d5b7a0b	40	~MyCanvas();
01111366	41	void OnPaint( wxPaintEvent &event );
9390a202	42	void CreateAntiAliasedBitmap();
1d5b7a0b	43
e1929140 RR	44	wxBitmap *my_horse_png;
	45	wxBitmap *my_horse_jpeg;
	46	wxBitmap *my_horse_gif;
ca26177c	47	wxBitmap *my_horse_bmp;
cbd4be25	48	wxBitmap *my_horse_pcx;
6319afe3	49	wxBitmap *my_horse_pnm;
60a41aee	50	wxBitmap *my_horse_tiff;
dc1dbfc6	51	wxBitmap *my_smile_xbm;
e8fdc264	52	wxBitmap *my_square;
9390a202	53	wxBitmap *my_anti;
1d5b7a0b	54
bea56879 VZ	55	protected:
	56	wxBitmap m_bmpSmileXpm;
	57	wxIcon m_iconSmileXpm;
	58
60a41aee	59	private:
1d5b7a0b VZ	60	DECLARE_DYNAMIC_CLASS(MyCanvas)
1d5b7a0b VZ	61	DECLARE_EVENT_TABLE()
01111366 RR	62	};
	63
	64	// MyFrame
	65
	66	class MyFrame: public wxFrame
	67	{
1d5b7a0b VZ	68	public:
1d5b7a0b VZ	69	MyFrame();
01111366	70
01111366 RR	71	void OnAbout( wxCommandEvent &event );
01111366 RR	72	void OnQuit( wxCommandEvent &event );
1d5b7a0b	73
01111366	74	MyCanvas *m_canvas;
1d5b7a0b	75
60a41aee	76	private:
1d5b7a0b VZ	77	DECLARE_DYNAMIC_CLASS(MyFrame)
1d5b7a0b VZ	78	DECLARE_EVENT_TABLE()
01111366 RR	79	};
	80
	81	// MyApp
	82
	83	class MyApp: public wxApp
	84	{
1d5b7a0b VZ	85	public:
1d5b7a0b VZ	86	virtual bool OnInit();
01111366 RR	87	};
	88
	89	// main program
	90
	91	IMPLEMENT_APP(MyApp)
	92
	93	// MyCanvas
	94
	95	IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
	96
1d5b7a0b VZ	97	BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
1d5b7a0b VZ	98	EVT_PAINT(MyCanvas::OnPaint)
01111366 RR	99	END_EVENT_TABLE()
01111366 RR	100
acbd13a3	101	MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
1d5b7a0b	102	const wxPoint &pos, const wxSize &size )
81278df2 VZ	103	: wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
	104	#if !defined(__WINDOWS__) \|\| wxUSE_XPM_IN_MSW
	105	, m_bmpSmileXpm((const char **) smile_xpm)
	106	, m_iconSmileXpm((const char **) smile_xpm)
	107	#endif
01111366	108	{
60a41aee RR	109	my_horse_png = (wxBitmap*) NULL;
	110	my_horse_jpeg = (wxBitmap*) NULL;
	111	my_horse_gif = (wxBitmap*) NULL;
	112	my_horse_bmp = (wxBitmap*) NULL;
	113	my_horse_pcx = (wxBitmap*) NULL;
	114	my_horse_pnm = (wxBitmap*) NULL;
	115	my_horse_tiff = (wxBitmap*) NULL;
dc1dbfc6	116	my_smile_xbm = (wxBitmap*) NULL;
60a41aee RR	117	my_square = (wxBitmap*) NULL;
	118	my_anti = (wxBitmap*) NULL;
	119
	120	SetBackgroundColour(* wxWHITE);
	121
	122	wxBitmap bitmap( 100, 100 );
	123
	124	wxMemoryDC dc;
	125	dc.SelectObject( bitmap );
	126	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	127	dc.SetPen( *wxBLACK_PEN );
60a41aee	128	dc.DrawRectangle( 0, 0, 100, 100 );
cf3da716 RR	129	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	130	dc.DrawRectangle( 20, 20, 60, 60 );
60a41aee RR	131	dc.SelectObject( wxNullBitmap );
	132
	133	// try to find the directory with our images
	134	wxString dir;
	135	if ( wxFile::Exists("./horse.png") )
81278df2	136	dir = "./";
60a41aee RR	137	else if ( wxFile::Exists("../horse.png") )
	138	dir = "../";
	139	else
	140	wxLogWarning("Can't find image files in either '.' or '..'!");
	141
	142	wxImage image( bitmap );
	143
bea56879	144	#if wxUSE_LIBPNG
279ababf RR	145	image.LoadFile( dir + wxString("test.png") );
	146	my_square = new wxBitmap( image.ConvertToBitmap() );
	147
60a41aee RR	148	if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ) )
60a41aee RR	149	wxLogError("Can't save file");
279ababf RR	150
279ababf RR	151	image = wxImage( 100, 100 );
60a41aee RR	152
	153	if ( !image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG ) )
	154	wxLogError("Can't load PNG image");
	155	else
	156	my_horse_png = new wxBitmap( image.ConvertToBitmap() );
bea56879	157	#endif // wxUSE_LIBPNG
60a41aee	158
bea56879	159	#if wxUSE_LIBJPEG
279ababf RR	160	image = wxImage( 100, 100 );
279ababf RR	161
60a41aee RR	162	if ( !image.LoadFile( dir + wxString("horse.jpg") ) )
	163	wxLogError("Can't load JPG image");
	164	else
	165	my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );
bea56879	166	#endif // wxUSE_LIBJPEG
6e47faf1 JS	167
6e47faf1 JS	168	#if wxUSE_GIF
279ababf RR	169	image = wxImage( 100, 100 );
279ababf RR	170
60a41aee RR	171	if ( !image.LoadFile( dir + wxString("horse.gif") ) )
	172	wxLogError("Can't load GIF image");
	173	else
	174	my_horse_gif = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	175	#endif
cbd4be25	176
6e47faf1	177	#if wxUSE_PCX
279ababf RR	178	image = wxImage( 100, 100 );
279ababf RR	179
60a41aee RR	180	if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
	181	wxLogError("Can't load PCX image");
	182	else
	183	my_horse_pcx = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	184	#endif
cbd4be25	185
279ababf RR	186	image = wxImage( 100, 100 );
279ababf RR	187
60a41aee RR	188	if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
	189	wxLogError("Can't load BMP image");
	190	else
	191	my_horse_bmp = new wxBitmap( image.ConvertToBitmap() );
6319afe3	192
6e47faf1	193	#if wxUSE_PNM
279ababf RR	194	image = wxImage( 100, 100 );
279ababf RR	195
60a41aee RR	196	if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
	197	wxLogError("Can't load PNM image");
	198	else
	199	my_horse_pnm = new wxBitmap( image.ConvertToBitmap() );
6e47faf1	200	#endif
f048e32f	201
60a41aee	202	#if wxUSE_LIBTIFF
279ababf RR	203	image = wxImage( 100, 100 );
279ababf RR	204
60a41aee RR	205	if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
	206	wxLogError("Can't load TIFF image");
	207	else
	208	my_horse_tiff = new wxBitmap( image.ConvertToBitmap() );
	209	#endif
	210
60a41aee	211	CreateAntiAliasedBitmap();
dc1dbfc6 RL	212
	213	my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width,
	214	smile_height, 1 );
bfef20bf	215
279ababf	216	#ifndef __WXGTK__
81278df2	217	#if !defined(__WINDOWS__) \|\| wxUSE_XPM_IN_MSW
bfef20bf GRG	218	// demonstrates XPM automatically using the mask when saving
	219	if ( m_bmpSmileXpm.Ok() )
	220	m_bmpSmileXpm.SaveFile("saved.xpm", wxBITMAP_TYPE_XPM);
81278df2	221	#endif
279ababf	222	#endif
01111366 RR	223	}
01111366 RR	224
1d5b7a0b	225	MyCanvas::~MyCanvas()
01111366	226	{
60a41aee RR	227	delete my_horse_pnm;
	228	delete my_horse_png;
	229	delete my_horse_jpeg;
	230	delete my_horse_gif;
	231	delete my_horse_bmp;
	232	delete my_horse_pcx;
	233	delete my_horse_tiff;
dc1dbfc6	234	delete my_smile_xbm;
60a41aee RR	235	delete my_square;
60a41aee RR	236	delete my_anti;
01111366 RR	237	}
	238
	239	void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
	240	{
be25e480 RR	241	wxPaintDC dc( this );
be25e480 RR	242	PrepareDC( dc );
a91b47e8	243
be25e480 RR	244	dc.DrawText( "Loaded image", 30, 10 );
be25e480 RR	245	if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
f048e32f	246
be25e480 RR	247	dc.DrawText( "Drawn directly", 150, 10 );
be25e480 RR	248	dc.SetBrush( wxBrush( "orange", wxSOLID ) );
cf3da716	249	dc.SetPen( *wxBLACK_PEN );
be25e480	250	dc.DrawRectangle( 150, 30, 100, 100 );
cf3da716 RR	251	dc.SetBrush( *wxWHITE_BRUSH );
cf3da716 RR	252	dc.DrawRectangle( 170, 50, 60, 60 );
be25e480	253
408b4168	254	if (my_anti && my_anti->Ok())
be25e480 RR	255	dc.DrawBitmap( *my_anti, 280, 30 );
	256
	257	dc.DrawText( "PNG handler", 30, 135 );
	258	if (my_horse_png && my_horse_png->Ok())
408b4168	259	{
be25e480 RR	260	dc.DrawBitmap( *my_horse_png, 30, 150 );
	261	wxRect rect(0,0,100,100);
	262	wxBitmap sub( my_horse_png->GetSubBitmap(rect) );
	263	dc.DrawText( "GetSubBitmap()", 280, 190 );
	264	dc.DrawBitmap( sub, 280, 210 );
	265	}
	266
	267	dc.DrawText( "JPEG handler", 30, 365 );
408b4168	268	if (my_horse_jpeg && my_horse_jpeg->Ok())
be25e480 RR	269	dc.DrawBitmap( *my_horse_jpeg, 30, 380 );
	270
	271	dc.DrawText( "GIF handler", 30, 595 );
408b4168	272	if (my_horse_gif && my_horse_gif->Ok())
be25e480 RR	273	dc.DrawBitmap( *my_horse_gif, 30, 610 );
	274
	275	dc.DrawText( "PCX handler", 30, 825 );
408b4168	276	if (my_horse_pcx && my_horse_pcx->Ok())
be25e480 RR	277	dc.DrawBitmap( *my_horse_pcx, 30, 840 );
	278
	279	dc.DrawText( "BMP handler", 30, 1055 );
408b4168	280	if (my_horse_bmp && my_horse_bmp->Ok())
be25e480 RR	281	dc.DrawBitmap( *my_horse_bmp, 30, 1070 );
	282
	283	dc.DrawText( "PNM handler", 30, 1285 );
408b4168	284	if (my_horse_pnm && my_horse_pnm->Ok())
be25e480	285	dc.DrawBitmap( *my_horse_pnm, 30, 1300 );
408b4168	286
be25e480	287	dc.DrawText( "TIFF handler", 30, 1515 );
408b4168	288	if (my_horse_tiff && my_horse_tiff->Ok())
4b05d973	289	dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
be25e480	290
408b4168	291	if (my_smile_xbm && my_smile_xbm->Ok())
be25e480 RR	292	{
be25e480 RR	293	dc.DrawText( "XBM bitmap", 30, 1745 );
82ea63e6 RR	294	dc.SetTextForeground( "RED" );
82ea63e6 RR	295	dc.SetTextBackground( "GREEN" );
be25e480	296	dc.DrawBitmap( *my_smile_xbm, 30, 1760 );
408b4168	297
be25e480 RR	298	dc.DrawText( "After wxImage conversion", 150, 1745 );
be25e480 RR	299	wxImage i( *my_smile_xbm );
408b4168 VZ	300	i.SetMaskColour( 0,0,0 );
408b4168 VZ	301	i.Replace( 255,255,255,
be25e480 RR	302	wxRED_PEN->GetColour().Red(),
	303	wxRED_PEN->GetColour().Green(),
	304	wxRED_PEN->GetColour().Blue() );
	305	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1760, TRUE );
	306	}
82ea63e6	307	dc.SetTextForeground( "BLACK" );
408b4168	308
41fbc841	309	wxBitmap mono( 60,50,1 );
82ea63e6 RR	310	wxMemoryDC memdc;
82ea63e6 RR	311	memdc.SelectObject( mono );
bfef20bf	312	memdc.SetPen( *wxBLACK_PEN );
82ea63e6	313	memdc.SetBrush( *wxWHITE_BRUSH );
41fbc841 RR	314	memdc.DrawRectangle( 0,0,60,50 );
	315	memdc.SetTextForeground( *wxBLACK );
	316	memdc.DrawText( "Hi!", 5, 5 );
	317	memdc.SetBrush( *wxBLACK_BRUSH );
	318	memdc.DrawRectangle( 33,5,20,20 );
	319	memdc.SetPen( *wxRED_PEN );
	320	memdc.DrawLine( 5, 42, 50, 42 );
82ea63e6	321	memdc.SelectObject( wxNullBitmap );
408b4168	322	if (mono.Ok())
82ea63e6 RR	323	{
	324	dc.DrawText( "Mono bitmap", 30, 1845 );
	325	dc.SetTextForeground( "RED" );
	326	dc.SetTextBackground( "GREEN" );
	327	dc.DrawBitmap( mono, 30, 1860 );
408b4168	328
bea56879	329	dc.SetTextForeground( "BLACK" );
82ea63e6	330	dc.DrawText( "After wxImage conversion", 150, 1845 );
bea56879	331	dc.SetTextForeground( "RED" );
82ea63e6	332	wxImage i( mono );
408b4168 VZ	333	i.SetMaskColour( 255,255,255 );
408b4168 VZ	334	i.Replace( 0,0,0,
82ea63e6 RR	335	wxRED_PEN->GetColour().Red(),
	336	wxRED_PEN->GetColour().Green(),
	337	wxRED_PEN->GetColour().Blue() );
	338	dc.DrawBitmap( i.ConvertToBitmap(), 150, 1860, TRUE );
bea56879 VZ	339	dc.SetTextForeground( "BLACK" );
	340	}
	341
	342	dc.DrawText("XPM bitmap", 30, 1950);
	343	if ( m_bmpSmileXpm.Ok() )
	344	{
	345	dc.DrawBitmap(m_bmpSmileXpm, 30, 1975, TRUE);
	346	}
	347
	348	dc.DrawText("XPM icon", 150, 1950);
	349	if ( m_iconSmileXpm.Ok() )
	350	{
	351	dc.DrawIcon(m_iconSmileXpm, 150, 1975);
82ea63e6	352	}
9390a202	353	}
1d5b7a0b	354
9390a202 RR	355	void MyCanvas::CreateAntiAliasedBitmap()
	356	{
	357	wxBitmap bitmap( 300, 300 );
a91b47e8	358
9390a202	359	wxMemoryDC dc;
a91b47e8	360
9390a202	361	dc.SelectObject( bitmap );
a91b47e8	362
9390a202	363	dc.Clear();
f048e32f	364
6e47faf1	365	dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
9390a202 RR	366	dc.SetTextForeground( "RED" );
	367	dc.DrawText( "This is anti-aliased Text.", 20, 20 );
	368	dc.DrawText( "And a Rectangle.", 20, 60 );
f048e32f	369
9390a202	370	dc.SetBrush( *wxRED_BRUSH );
91b8de8d	371	dc.SetPen( *wxTRANSPARENT_PEN );
9390a202	372	dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
f048e32f	373
9390a202 RR	374	wxImage original( bitmap );
9390a202 RR	375	wxImage anti( 150, 150 );
a91b47e8	376
9390a202	377	/* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
f048e32f	378
9390a202 RR	379	for (int y = 1; y < 149; y++)
	380	for (int x = 1; x < 149; x++)
	381	{
	382	int red = original.GetRed( x2, y2 ) +
f048e32f VZ	383	original.GetRed( x2-1, y2 ) +
f048e32f VZ	384	original.GetRed( x2, y2+1 ) +
9390a202	385	original.GetRed( x2+1, y2+1 );
f048e32f VZ	386	red = red/4;
f048e32f VZ	387
9390a202	388	int green = original.GetGreen( x2, y2 ) +
f048e32f VZ	389	original.GetGreen( x2-1, y2 ) +
f048e32f VZ	390	original.GetGreen( x2, y2+1 ) +
9390a202	391	original.GetGreen( x2+1, y2+1 );
f048e32f VZ	392	green = green/4;
f048e32f VZ	393
9390a202	394	int blue = original.GetBlue( x2, y2 ) +
f048e32f VZ	395	original.GetBlue( x2-1, y2 ) +
f048e32f VZ	396	original.GetBlue( x2, y2+1 ) +
9390a202	397	original.GetBlue( x2+1, y2+1 );
f048e32f	398	blue = blue/4;
9390a202 RR	399	anti.SetRGB( x, y, red, green, blue );
	400	}
	401	my_anti = new wxBitmap( anti.ConvertToBitmap() );
01111366 RR	402	}
	403
	404	// MyFrame
	405
79490c3d VZ	406	const int ID_QUIT = 108;
79490c3d VZ	407	const int ID_ABOUT = 109;
01111366 RR	408
	409	IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
	410
	411	BEGIN_EVENT_TABLE(MyFrame,wxFrame)
	412	EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
	413	EVT_MENU (ID_QUIT, MyFrame::OnQuit)
	414	END_EVENT_TABLE()
	415
1d5b7a0b VZ	416	MyFrame::MyFrame()
	417	: wxFrame( (wxFrame *)NULL, -1, "wxImage sample",
	418	wxPoint(20,20), wxSize(470,360) )
01111366 RR	419	{
01111366 RR	420	wxMenu *file_menu = new wxMenu();
81278df2	421	file_menu->Append( ID_ABOUT, "&About...");
90e58684	422	file_menu->Append( ID_QUIT, "E&xit");
1d5b7a0b	423
01111366	424	wxMenuBar *menu_bar = new wxMenuBar();
90e58684	425	menu_bar->Append(file_menu, "&File");
3d05544e	426
01111366	427	SetMenuBar( menu_bar );
1d5b7a0b	428
917e533b RR	429	CreateStatusBar(2);
	430	int widths[] = { -1, 100 };
	431	SetStatusWidths( 2, widths );
1d5b7a0b	432
fb1585ae	433	m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
cbd4be25	434
bea56879 VZ	435	// 500 width * 2100 height
bea56879 VZ	436	m_canvas->SetScrollbars( 10, 10, 50, 210 );
01111366 RR	437	}
	438
	439	void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
	440	{
	441	Close( TRUE );
	442	}
	443
	444	void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
	445	{
1d5b7a0b	446	(void)wxMessageBox( "wxImage demo\n"
41fbc841	447	"Robert Roebling (c) 1998,2000",
1d5b7a0b	448	"About wxImage Demo", wxICON_INFORMATION \| wxOK );
fb1585ae RR	449	}
fb1585ae RR	450
01111366 RR	451	//-----------------------------------------------------------------------------
	452	// MyApp
	453	//-----------------------------------------------------------------------------
	454
1d5b7a0b	455	bool MyApp::OnInit()
01111366	456	{
e9c4b1a2 JS	457	#if wxUSE_LIBPNG
	458	wxImage::AddHandler( new wxPNGHandler );
	459	#endif
	460
	461	#if wxUSE_LIBJPEG
	462	wxImage::AddHandler( new wxJPEGHandler );
	463	#endif
	464
60a41aee RR	465	#if wxUSE_LIBTIFF
	466	wxImage::AddHandler( new wxTIFFHandler );
	467	#endif
	468
6e47faf1	469	#if wxUSE_GIF
e1929140	470	wxImage::AddHandler( new wxGIFHandler );
6e47faf1 JS	471	#endif
	472
	473	#if wxUSE_PCX
cbd4be25	474	wxImage::AddHandler( new wxPCXHandler );
6e47faf1 JS	475	#endif
	476
	477	#if wxUSE_PNM
6319afe3	478	wxImage::AddHandler( new wxPNMHandler );
6e47faf1	479	#endif
e1929140	480
01111366 RR	481	wxFrame *frame = new MyFrame();
01111366 RR	482	frame->Show( TRUE );
1d5b7a0b	483
01111366 RR	484	return TRUE;
	485	}
	486