typo fixed

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

diff --git a/samples/image/image.cpp b/samples/image/image.cpp
index 5f215657ad42391a238214237a3019548a20bfc7..bcc4ed44085ad2675d1a1737026a6df95437bec7 100644 (file)
--- a/samples/image/image.cpp
+++ b/samples/image/image.cpp
@@ -20,6 +20,11 @@
 
 #include "wx/image.h"
 
 
 #include "wx/image.h"
 

+#include "wx/file.h"
+
+#include "smile.xbm"
+#include "smile.xpm"
+

 // derived classes
 
 class MyFrame;
 // derived classes
 
 class MyFrame;


@@ -36,10 +41,22 @@ public:
     void OnPaint( wxPaintEvent &event );
     void CreateAntiAliasedBitmap();
 
     void OnPaint( wxPaintEvent &event );
     void CreateAntiAliasedBitmap();
 

-    wxBitmap  *my_horse;
+    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;
 
     wxBitmap  *my_square;
     wxBitmap  *my_anti;
 

+protected:
+    wxBitmap m_bmpSmileXpm;
+    wxIcon   m_iconSmileXpm;
+
+private:

     DECLARE_DYNAMIC_CLASS(MyCanvas)
     DECLARE_EVENT_TABLE()
 };
     DECLARE_DYNAMIC_CLASS(MyCanvas)
     DECLARE_EVENT_TABLE()
 };


@@ -56,6 +73,7 @@ public:
 
     MyCanvas         *m_canvas;
 
 
     MyCanvas         *m_canvas;
 

+private:

     DECLARE_DYNAMIC_CLASS(MyFrame)
     DECLARE_EVENT_TABLE()
 };
     DECLARE_DYNAMIC_CLASS(MyFrame)
     DECLARE_EVENT_TABLE()
 };


@@ -83,63 +101,255 @@ END_EVENT_TABLE()
 MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
                     const wxPoint &pos, const wxSize &size )
         : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER )
 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 = (wxBitmap*) NULL;
-  my_square = (wxBitmap*) NULL;
-  my_anti = (wxBitmap*) NULL;
+    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 );

 
 

-  SetBackgroundColour(* wxWHITE);
+#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

 
 

-  wxBitmap bitmap( 100, 100 );
+#if wxUSE_LIBJPEG
+    image = wxImage( 100, 100 );

 
 

-  wxMemoryDC dc;
-  dc.SelectObject( bitmap );
-  dc.SetBrush( wxBrush( "orange", wxSOLID ) );
-  dc.SetPen( *wxWHITE_PEN );
-  dc.DrawRectangle( 0, 0, 100, 100 );
-  dc.SelectObject( wxNullBitmap );
+    if ( !image.LoadFile( dir + wxString("horse.jpg") ) )
+        wxLogError("Can't load JPG image");
+    else
+        my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );
+#endif // wxUSE_LIBJPEG

 
 

-  wxString dir("");
+#if wxUSE_GIF
+    image = wxImage( 100, 100 );

 
 

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

 #endif
 
 #endif
 

-  wxImage image( bitmap );
-  image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG );
-  
-  image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG );
-  my_horse = new wxBitmap( image.ConvertToBitmap() );
-  
-  image.LoadFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG );
-  my_square = new wxBitmap( image.ConvertToBitmap() );
+#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

 
 

-  CreateAntiAliasedBitmap();
+#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()
 {
 }
 
 MyCanvas::~MyCanvas()
 {

-  delete my_horse;
-  delete my_square;
-  delete my_anti;
+    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) )
 {
 }
 
 void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
 {

-  wxPaintDC dc( this );
-  PrepareDC( dc );
+    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( "Loaded image", 30, 10 );
-  if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
+    dc.DrawText( "GIF handler", 30, 595 );
+    if (my_horse_gif && my_horse_gif->Ok())
+        dc.DrawBitmap( *my_horse_gif, 30, 610 );

 
 

-  dc.DrawText( "Drawn directly", 150, 10 );
-  dc.SetBrush( wxBrush( "orange", wxSOLID ) );
-  dc.SetPen( *wxWHITE_PEN );
-  dc.DrawRectangle( 150, 30, 100, 100 );
+    dc.DrawText( "PCX handler", 30, 825 );
+    if (my_horse_pcx && my_horse_pcx->Ok())
+        dc.DrawBitmap( *my_horse_pcx, 30, 840 );

 
 

-  if (my_anti && my_anti->Ok()) dc.DrawBitmap( *my_anti, 250, 140 );
-  
-  if (my_horse && my_horse->Ok()) dc.DrawBitmap( *my_horse, 30, 140 );
+    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()
 }
 
 void MyCanvas::CreateAntiAliasedBitmap()


@@ -151,40 +361,41 @@ void MyCanvas::CreateAntiAliasedBitmap()
   dc.SelectObject( bitmap );
 
   dc.Clear();
   dc.SelectObject( bitmap );
 
   dc.Clear();

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

-  
+

   dc.SetBrush( *wxRED_BRUSH );
   dc.SetBrush( *wxRED_BRUSH );

+  dc.SetPen( *wxTRANSPARENT_PEN );

   dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
   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. */
   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 ) +
   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 ) +
+                 original.GetRed( x*2, y*2+1 ) +

                  original.GetRed( x*2+1, y*2+1 );
                  original.GetRed( x*2+1, y*2+1 );

-       red = red/4; 
-       
+       red = red/4;
+

        int green = original.GetGreen( x*2, y*2 ) +
        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 ) +
+                   original.GetGreen( x*2, y*2+1 ) +

                    original.GetGreen( x*2+1, y*2+1 );
                    original.GetGreen( x*2+1, y*2+1 );

-       green = green/4; 
-       
+       green = green/4;
+

        int blue = original.GetBlue( x*2, y*2 ) +
        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 ) +
+                  original.GetBlue( x*2, y*2+1 ) +

                   original.GetBlue( x*2+1, y*2+1 );
                   original.GetBlue( x*2+1, y*2+1 );

-       blue = blue/4; 
+       blue = blue/4;

        anti.SetRGB( x, y, red, green, blue );
     }
   my_anti = new wxBitmap( anti.ConvertToBitmap() );
        anti.SetRGB( x, y, red, green, blue );
     }
   my_anti = new wxBitmap( anti.ConvertToBitmap() );


@@ -207,11 +418,11 @@ MyFrame::MyFrame()
                   wxPoint(20,20), wxSize(470,360) )
 {
   wxMenu *file_menu = new wxMenu();
                   wxPoint(20,20), wxSize(470,360) )
 {
   wxMenu *file_menu = new wxMenu();

-  file_menu->Append( ID_ABOUT, "About..");
-  file_menu->Append( ID_QUIT, "Exit");
+  file_menu->Append( ID_ABOUT, "&About...");
+  file_menu->Append( ID_QUIT, "E&xit");

 
   wxMenuBar *menu_bar = new wxMenuBar();
 
   wxMenuBar *menu_bar = new wxMenuBar();

-  menu_bar->Append(file_menu, "File");
+  menu_bar->Append(file_menu, "&File");

 
   SetMenuBar( menu_bar );
 
 
   SetMenuBar( menu_bar );
 


@@ -220,7 +431,9 @@ MyFrame::MyFrame()
   SetStatusWidths( 2, widths );
 
   m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
   SetStatusWidths( 2, widths );
 
   m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );

-  m_canvas->SetScrollbars( 10, 10, 50, 50 );
+
+  // 500 width * 2100 height
+  m_canvas->SetScrollbars( 10, 10, 50, 210 );

 }
 
 void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
 }
 
 void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )


@@ -231,7 +444,7 @@ void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
 {
   (void)wxMessageBox( "wxImage demo\n"
 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
 {
   (void)wxMessageBox( "wxImage demo\n"

-                      "Robert Roebling (c) 1998",
+                      "Robert Roebling (c) 1998,2000",

                       "About wxImage Demo", wxICON_INFORMATION | wxOK );
 }
 
                       "About wxImage Demo", wxICON_INFORMATION | wxOK );
 }
 


@@ -249,6 +462,22 @@ bool MyApp::OnInit()
   wxImage::AddHandler( new wxJPEGHandler );
 #endif
 
   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 );
 
   wxFrame *frame = new MyFrame();
   frame->Show( TRUE );