class MyCanvas: public wxScrolledWindow
{
public:
- MyCanvas() {};
+ MyCanvas() {}
MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
~MyCanvas();
void OnPaint( wxPaintEvent &event );
wxBitmap *my_horse_jpeg;
wxBitmap *my_horse_gif;
wxBitmap *my_horse_bmp;
+ wxBitmap *my_horse_bmp2;
wxBitmap *my_horse_pcx;
wxBitmap *my_horse_pnm;
wxBitmap *my_horse_tiff;
wxBitmap *my_horse_ico16;
wxBitmap *my_horse_ico;
wxBitmap *my_horse_cur;
-
+
wxBitmap *my_smile_xbm;
wxBitmap *my_square;
wxBitmap *my_anti;
const int nChoices = 8 ;
static const wxString bppchoices[nChoices] =
{
- "1 bpp color",
- "1 bpp B&W",
- "4 bpp color",
- "8 bpp color",
- "8 bpp greyscale",
- "8 bpp red",
- "8 bpp own palette",
- "24 bpp"
+ _T("1 bpp color"),
+ _T("1 bpp B&W"),
+ _T("4 bpp color"),
+ _T("8 bpp color"),
+ _T("8 bpp greyscale"),
+ _T("8 bpp red"),
+ _T("8 bpp own palette"),
+ _T("24 bpp")
};
static const int bppvalues[nChoices] =
void OnSave(wxCommandEvent& WXUNUSED(event))
{
- wxImage image(m_bitmap);
+ wxImage image = m_bitmap.ConvertToImage();
- int bppselection = wxGetSingleChoiceIndex("Set BMP BPP",
- "Set BMP BPP",
+ int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"),
+ _T("Set BMP BPP"),
nChoices,
bppchoices,
this);
return;
}
- image.SetOption(wxBMP_FORMAT, bppvalues[bppselection]);
+ image.SetOption(wxIMAGE_OPTION_BMP_FORMAT, bppvalues[bppselection]);
wxString deffilename = bppchoices[bppselection];
deffilename.Replace(wxT(" "), wxT("_"));
if ( savefilename.empty() )
return;
- if ( image.GetOptionInt(wxBMP_FORMAT) == wxBMP_8BPP_PALETTE )
+ if ( image.GetOptionInt(wxIMAGE_OPTION_BMP_FORMAT) == wxBMP_8BPP_PALETTE )
{
unsigned char *cmap = new unsigned char [256];
for ( int i = 0; i < 256; i++ )
delete cmap;
}
- bool saved = FALSE;
-
+ bool loaded;
wxString extension = savefilename.AfterLast('.').Lower();
- if (extension == "bmp")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_BMP);
- else if (extension == "png")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PNG);
- else if (extension == "pcx")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PCX);
- else if ((extension == "tif") || (extension == "tiff"))
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_TIF);
- else if (extension == "jpg")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_JPEG);
- else if (extension == "pnm")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PNM);
- else if (extension == "ico")
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_ICO);
- else if (extension == "cur")
- {
- image.Rescale(32,32);
- image.SetOption(wxCUR_HOTSPOT_X, 0);
- image.SetOption(wxCUR_HOTSPOT_Y, 0);
- saved=image.SaveFile(savefilename, wxBITMAP_TYPE_CUR);
- }
+ if (extension == _T("cur"))
+ {
+ image.Rescale(32,32);
+ image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, 0);
+ image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, 0);
+ // This shows how you can save an image with explicitly
+ // specified image format:
+ loaded = image.SaveFile(savefilename, wxBITMAP_TYPE_CUR);
+ }
else
- wxMessageBox("Unknown file type, see options in file selector.",
- "Unknown file type",
+ {
+ // This one guesses image format from filename extension
+ // (it may fail if the extension is not recognized):
+ loaded = image.SaveFile(savefilename);
+ }
+
+ if ( !loaded )
+ wxMessageBox(_T("No handler for this file type."),
+ _T("File was not saved"),
wxOK|wxCENTRE, this);
}
my_horse_jpeg = (wxBitmap*) NULL;
my_horse_gif = (wxBitmap*) NULL;
my_horse_bmp = (wxBitmap*) NULL;
+ my_horse_bmp2 = (wxBitmap*) NULL;
my_horse_pcx = (wxBitmap*) NULL;
my_horse_pnm = (wxBitmap*) NULL;
my_horse_tiff = (wxBitmap*) NULL;
wxImage image = bitmap.ConvertToImage();
#if wxUSE_LIBPNG
- if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ))
+ if ( !image.SaveFile( dir + _T("test.png"), wxBITMAP_TYPE_PNG ))
wxLogError(wxT("Can't save file"));
image.Destroy();
- image.LoadFile( dir + wxString("test.png") );
+ image.LoadFile( dir + _T("test.png") );
my_square = new wxBitmap( image );
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.png")) )
+ if ( !image.LoadFile( dir + _T("horse.png")) )
wxLogError(wxT("Can't load PNG image"));
else
my_horse_png = new wxBitmap( image );
#if wxUSE_LIBJPEG
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.jpg")) )
+ if ( !image.LoadFile( dir + _T("horse.jpg")) )
wxLogError(wxT("Can't load JPG image"));
else
my_horse_jpeg = new wxBitmap( image );
#if wxUSE_GIF
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.gif")) )
+ if ( !image.LoadFile( dir + wxString("horse.gif")))
wxLogError(wxT("Can't load GIF image"));
else
my_horse_gif = new wxBitmap( image );
#if wxUSE_PCX
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
+ if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) )
wxLogError(wxT("Can't load PCX image"));
else
my_horse_pcx = new wxBitmap( image );
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
+ if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) )
wxLogError(wxT("Can't load BMP image"));
else
my_horse_bmp = new wxBitmap( image );
#if wxUSE_XPM
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.xpm"), wxBITMAP_TYPE_XPM ) )
+ if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) )
wxLogError(wxT("Can't load XPM image"));
else
my_horse_xpm = new wxBitmap( image );
- if ( !image.SaveFile( dir + wxString("test.xpm"), wxBITMAP_TYPE_XPM ))
+ if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM ))
wxLogError(wxT("Can't save file"));
#endif
#if wxUSE_PNM
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
+ if ( !image.LoadFile( dir + _T("horse.pnm"), wxBITMAP_TYPE_PNM ) )
wxLogError(wxT("Can't load PNM image"));
else
my_horse_pnm = new wxBitmap( image );
#if wxUSE_LIBTIFF
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
+ if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) )
wxLogError(wxT("Can't load TIFF image"));
else
my_horse_tiff = new wxBitmap( image );
#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);
+ m_bmpSmileXpm.SaveFile(_T("saved.xpm"), wxBITMAP_TYPE_XPM);
#endif
#if wxUSE_ICO_CUR
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) )
+ if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) )
wxLogError(wxT("Can't load first ICO image"));
else
my_horse_ico32 = new wxBitmap( image );
-
+
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) )
+ if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) )
wxLogError(wxT("Can't load second ICO image"));
else
my_horse_ico16 = new wxBitmap( image );
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.ico") ) )
+ if ( !image.LoadFile( dir + _T("horse.ico") ) )
wxLogError(wxT("Can't load best ICO image"));
else
my_horse_ico = new wxBitmap( image );
image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.cur"), wxBITMAP_TYPE_CUR ) )
+ if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) )
wxLogError(wxT("Can't load best ICO image"));
else
- {
+ {
my_horse_cur = new wxBitmap( image );
- xH = 30 + image.GetOptionInt(wxCUR_HOTSPOT_X) ;
- yH = 2420 + image.GetOptionInt(wxCUR_HOTSPOT_Y) ;
- }
-
+ xH = 30 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X) ;
+ yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ;
+ }
#endif
+ image.Destroy();
+
+ // test image loading from stream
+ wxFile file(dir + _T("horse.bmp"));
+ off_t len = file.Length();
+ void *data = malloc(len);
+ if ( file.Read(data, len) != len )
+ wxLogError(_T("Reading bitmap file failed"));
+ else
+ {
+ wxMemoryInputStream mis(data, len);
+ if ( !image.LoadFile(mis) )
+ wxLogError(wxT("Can't load BMP image from stream"));
+ else
+ my_horse_bmp2 = new wxBitmap( image );
+ }
+
+ free(data);
}
MyCanvas::~MyCanvas()
delete my_horse_jpeg;
delete my_horse_gif;
delete my_horse_bmp;
+ delete my_horse_bmp2;
delete my_horse_pcx;
delete my_horse_tiff;
delete my_horse_xpm;
delete my_horse_ico32;
delete my_horse_ico16;
delete my_horse_ico;
+ delete my_horse_cur;
delete my_smile_xbm;
delete my_square;
delete my_anti;
wxPaintDC dc( this );
PrepareDC( dc );
- dc.DrawText( "Loaded image", 30, 10 );
+ dc.DrawText( _T("Loaded image"), 30, 10 );
if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
- dc.DrawText( "Drawn directly", 150, 10 );
+ dc.DrawText( _T("Drawn directly"), 150, 10 );
dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
dc.SetPen( *wxBLACK_PEN );
dc.DrawRectangle( 150, 30, 100, 100 );
if (my_anti && my_anti->Ok())
dc.DrawBitmap( *my_anti, 280, 30 );
- dc.DrawText( "PNG handler", 30, 135 );
+ dc.DrawText( _T("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.DrawText( _T("GetSubBitmap()"), 280, 190 );
dc.DrawBitmap( sub, 280, 210 );
}
- dc.DrawText( "JPEG handler", 30, 365 );
+ dc.DrawText( _T("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 );
+ dc.DrawText( _T("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 );
+ dc.DrawText( _T("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 );
+ dc.DrawText( _T("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 );
+ dc.DrawText( _T("BMP read from memory"), 280, 1055 );
+ if (my_horse_bmp2 && my_horse_bmp2->Ok())
+ dc.DrawBitmap( *my_horse_bmp2, 280, 1070 );
+
+ dc.DrawText( _T("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 );
+ dc.DrawText( _T("TIFF handler"), 30, 1515 );
if (my_horse_tiff && my_horse_tiff->Ok())
dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
- dc.DrawText( "XPM handler", 30, 1745 );
+ dc.DrawText( _T("XPM handler"), 30, 1745 );
if (my_horse_xpm && my_horse_xpm->Ok())
dc.DrawBitmap( *my_horse_xpm, 30, 1760 );
if (my_smile_xbm && my_smile_xbm->Ok())
{
- dc.DrawText( "XBM bitmap", 30, 1975 );
- dc.DrawText( "(green on red)", 30, 1990 );
- dc.SetTextForeground( wxT("GREEN") );
- dc.SetTextBackground( wxT("RED") );
+ dc.DrawText( _T("XBM bitmap"), 30, 1975 );
+ dc.DrawText( _T("(green on red)"), 30, 1990 );
+ dc.SetTextForeground( _T("GREEN") );
+ dc.SetTextBackground( _T("RED") );
dc.DrawBitmap( *my_smile_xbm, 30, 2010 );
dc.SetTextForeground( wxT("BLACK") );
- dc.DrawText( "After wxImage conversion", 150, 1975 );
- dc.DrawText( "(red on white)", 150, 1990 );
+ dc.DrawText( _T("After wxImage conversion"), 150, 1975 );
+ dc.DrawText( _T("(red on white)"), 150, 1990 );
dc.SetTextForeground( wxT("RED") );
wxImage i = my_smile_xbm->ConvertToImage();
i.SetMaskColour( 255, 255, 255 );
wxRED_PEN->GetColour().Red(),
wxRED_PEN->GetColour().Green(),
wxRED_PEN->GetColour().Blue() );
- dc.DrawBitmap( i.ConvertToBitmap(), 150, 2010, TRUE );
+ dc.DrawBitmap( wxBitmap(i), 150, 2010, TRUE );
dc.SetTextForeground( wxT("BLACK") );
}
memdc.SetBrush( *wxWHITE_BRUSH );
memdc.DrawRectangle( 0,0,60,50 );
memdc.SetTextForeground( *wxBLACK );
- memdc.DrawText( "Hi!", 5, 5 );
+ memdc.DrawText( _T("Hi!"), 5, 5 );
memdc.SetBrush( *wxBLACK_BRUSH );
memdc.DrawRectangle( 33,5,20,20 );
memdc.SetPen( *wxRED_PEN );
if (mono.Ok())
{
- dc.DrawText( "Mono bitmap", 30, 2095 );
- dc.DrawText( "(red on green)", 30, 2110 );
+ dc.DrawText( _T("Mono bitmap"), 30, 2095 );
+ dc.DrawText( _T("(red on green)"), 30, 2110 );
dc.SetTextForeground( wxT("RED") );
dc.SetTextBackground( wxT("GREEN") );
dc.DrawBitmap( mono, 30, 2130 );
dc.SetTextForeground( wxT("BLACK") );
- dc.DrawText( "After wxImage conversion", 150, 2095 );
- dc.DrawText( "(red on white)", 150, 2110 );
+ dc.DrawText( _T("After wxImage conversion"), 150, 2095 );
+ dc.DrawText( _T("(red on white)"), 150, 2110 );
dc.SetTextForeground( wxT("RED") );
wxImage i = mono.ConvertToImage();
i.SetMaskColour( 255,255,255 );
wxRED_PEN->GetColour().Red(),
wxRED_PEN->GetColour().Green(),
wxRED_PEN->GetColour().Blue() );
- dc.DrawBitmap( i.ConvertToBitmap(), 150, 2130, TRUE );
+ dc.DrawBitmap( wxBitmap(i), 150, 2130, TRUE );
dc.SetTextForeground( wxT("BLACK") );
}
- dc.DrawText("XPM bitmap", 30, 2230);
+ dc.DrawText(_T("XPM bitmap"), 30, 2230);
if ( m_bmpSmileXpm.Ok() )
{
dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, TRUE);
}
- dc.DrawText("XPM icon", 150, 2230);
+ dc.DrawText(_T("XPM icon"), 150, 2230);
if ( m_iconSmileXpm.Ok() )
{
dc.DrawIcon(m_iconSmileXpm, 150, 2250);
}
- dc.DrawText( "ICO handler (1st image)", 30, 2290 );
+ dc.DrawText( _T("ICO handler (1st image)"), 30, 2290 );
if (my_horse_ico32 && my_horse_ico32->Ok())
dc.DrawBitmap( *my_horse_ico32, 30, 2330, TRUE );
- dc.DrawText( "ICO handler (2nd image)", 230, 2290 );
+ dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 );
if (my_horse_ico16 && my_horse_ico16->Ok())
dc.DrawBitmap( *my_horse_ico16, 230, 2330, TRUE );
-
- dc.DrawText( "ICO handler (best image)", 430, 2290 );
+
+ dc.DrawText( _T("ICO handler (best image)"), 430, 2290 );
if (my_horse_ico && my_horse_ico->Ok())
dc.DrawBitmap( *my_horse_ico, 430, 2330, TRUE );
- dc.DrawText( "CUR handler", 30, 2390 );
+ dc.DrawText( _T("CUR handler"), 30, 2390 );
if (my_horse_cur && my_horse_cur->Ok())
- {
+ {
dc.DrawBitmap( *my_horse_cur, 30, 2420, TRUE );
dc.SetPen (*wxRED_PEN);
dc.DrawLine (xH-10,yH,xH+10,yH);
dc.DrawLine (xH,yH-10,xH,yH+10);
- }
+ }
}
void MyCanvas::CreateAntiAliasedBitmap()
dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
dc.SetTextForeground( wxT("RED") );
- dc.DrawText( "This is anti-aliased Text.", 20, 20 );
- dc.DrawText( "And a Rectangle.", 20, 60 );
+ dc.DrawText( _T("This is anti-aliased Text."), 20, 20 );
+ dc.DrawText( _T("And a Rectangle."), 20, 60 );
dc.SetBrush( *wxRED_BRUSH );
dc.SetPen( *wxTRANSPARENT_PEN );
blue = blue/4;
anti.SetRGB( x, y, red, green, blue );
}
- my_anti = new wxBitmap( anti.ConvertToBitmap() );
+ my_anti = new wxBitmap(anti);
}
// MyFrame
END_EVENT_TABLE()
MyFrame::MyFrame()
- : wxFrame( (wxFrame *)NULL, -1, "wxImage sample",
+ : wxFrame( (wxFrame *)NULL, -1, _T("wxImage sample"),
wxPoint(20,20), wxSize(470,360) )
{
wxMenu *file_menu = new wxMenu();
- file_menu->Append( ID_NEW, "&Show image...");
+ file_menu->Append( ID_NEW, _T("&Show image..."));
file_menu->AppendSeparator();
- file_menu->Append( ID_ABOUT, "&About...");
+ file_menu->Append( ID_ABOUT, _T("&About..."));
file_menu->AppendSeparator();
- file_menu->Append( ID_QUIT, "E&xit");
+ file_menu->Append( ID_QUIT, _T("E&xit"));
wxMenuBar *menu_bar = new wxMenuBar();
- menu_bar->Append(file_menu, "&File");
+ menu_bar->Append(file_menu, _T("&File"));
SetMenuBar( menu_bar );
void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
{
- (void)wxMessageBox( "wxImage demo\n"
- "Robert Roebling (c) 1998,2000",
- "About wxImage Demo", wxICON_INFORMATION | wxOK );
+ (void)wxMessageBox( _T("wxImage demo\n")
+ _T("Robert Roebling (c) 1998,2000"),
+ _T("About wxImage Demo"), wxICON_INFORMATION | wxOK );
}
void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) )
return;
}
- (new MyImageFrame(this, image.ConvertToBitmap()))->Show();
+ (new MyImageFrame(this, wxBitmap(image)))->Show();
}
//-----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff