#endif
#include "wx/image.h"
-
#include "wx/file.h"
+#include "wx/mstream.h"
+#include "wx/wfstream.h"
+#include "wx/quantize.h"
#include "smile.xbm"
#include "smile.xpm"
+
// derived classes
class MyFrame;
wxBitmap *my_horse_pcx;
wxBitmap *my_horse_pnm;
wxBitmap *my_horse_tiff;
+ wxBitmap *my_horse_xpm;
+
wxBitmap *my_smile_xbm;
wxBitmap *my_square;
wxBitmap *my_anti;
DECLARE_EVENT_TABLE()
};
+
+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"
+};
+
+static const int bppvalues[nChoices] =
+{
+ wxBMP_1BPP,
+ wxBMP_1BPP_BW,
+ wxBMP_4BPP,
+ wxBMP_8BPP,
+ wxBMP_8BPP_GREY,
+ wxBMP_8BPP_RED,
+ wxBMP_8BPP_PALETTE,
+ wxBMP_24BPP
+};
+
// MyFrame
+
class MyFrame: public wxFrame
{
public:
MyFrame();
void OnAbout( wxCommandEvent &event );
+ void OnNewFrame( wxCommandEvent &event );
void OnQuit( wxCommandEvent &event );
MyCanvas *m_canvas;
DECLARE_EVENT_TABLE()
};
+class MyImageFrame : public wxFrame
+{
+public:
+ MyImageFrame(wxFrame *parent, const wxBitmap& bitmap)
+ : wxFrame(parent, -1, _T("Double click to save"),
+ wxDefaultPosition, wxDefaultSize,
+ wxCAPTION | wxSYSTEM_MENU),
+ m_bitmap(bitmap)
+ {
+ SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
+ }
+
+ void OnPaint(wxPaintEvent& WXUNUSED(event))
+ {
+ wxPaintDC dc( this );
+ dc.DrawBitmap( m_bitmap, 0, 0 );
+ }
+
+ void OnSave(wxCommandEvent& WXUNUSED(event))
+ {
+ wxImage image(m_bitmap);
+
+ int bppselection = wxGetSingleChoiceIndex("Set BMP BPP",
+ "Set BMP BPP",
+ nChoices,
+ bppchoices,
+ this);
+ if ( bppselection == -1 )
+ {
+ // cancelled
+ return;
+ }
+
+ image.SetOption(wxBMP_FORMAT, bppvalues[bppselection]);
+
+ wxString deffilename = bppchoices[bppselection];
+ deffilename.Replace(wxT(" "), wxT("_"));
+ deffilename += wxT(".bmp");
+ wxString savefilename = wxFileSelector( wxT("Save Image"),
+ wxT(""),
+ deffilename,
+ (const wxChar *)NULL,
+ wxT("BMP files (*.bmp)|*.bmp|")
+ wxT("PNG files (*.png)|*.png|")
+ wxT("JPEG files (*.jpg)|*.jpg|")
+ wxT("GIF files (*.gif)|*.gif|")
+ wxT("TIFF files (*.tif)|*.tif|")
+ wxT("PCX files (*.pcx)|*.pcx"),
+ wxSAVE);
+
+ if ( savefilename.empty() )
+ return;
+
+ if ( image.GetOptionInt(wxBMP_FORMAT) == wxBMP_8BPP_PALETTE )
+ {
+ unsigned char *cmap = new unsigned char [256];
+ for ( int i = 0; i < 256; i++ )
+ cmap[i] = i;
+ image.SetPalette(wxPalette(256, cmap, cmap, cmap));
+
+ delete cmap;
+ }
+
+ bool saved = FALSE;
+
+ 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
+ wxMessageBox("Unknown file type, see options in file selector.",
+ "Unknown file type",
+ wxOK|wxCENTRE, this);
+ }
+
+private:
+ wxBitmap m_bitmap;
+
+ DECLARE_EVENT_TABLE()
+};
+
// MyApp
class MyApp: public wxApp
IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
+BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
+ EVT_PAINT(MyImageFrame::OnPaint)
+ EVT_LEFT_DCLICK(MyImageFrame::OnSave)
+END_EVENT_TABLE()
+
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
EVT_PAINT(MyCanvas::OnPaint)
END_EVENT_TABLE()
my_horse_pcx = (wxBitmap*) NULL;
my_horse_pnm = (wxBitmap*) NULL;
my_horse_tiff = (wxBitmap*) NULL;
+ my_horse_xpm = (wxBitmap*) NULL;
my_smile_xbm = (wxBitmap*) NULL;
my_square = (wxBitmap*) NULL;
my_anti = (wxBitmap*) NULL;
wxMemoryDC dc;
dc.SelectObject( bitmap );
- dc.SetBrush( wxBrush( "orange", wxSOLID ) );
+ dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
dc.SetPen( *wxBLACK_PEN );
dc.DrawRectangle( 0, 0, 100, 100 );
dc.SetBrush( *wxWHITE_BRUSH );
// try to find the directory with our images
wxString dir;
- if ( wxFile::Exists("./horse.png") )
+ if ( wxFile::Exists(wxT("./horse.png")) )
dir = "./";
- else if ( wxFile::Exists("../horse.png") )
+ else if ( wxFile::Exists(wxT("../horse.png")) )
dir = "../";
else
- wxLogWarning("Can't find image files in either '.' or '..'!");
+ wxLogWarning(wxT("Can't find image files in either '.' or '..'!"));
- wxImage image( bitmap );
+ wxImage image = bitmap.ConvertToImage();
#if wxUSE_LIBPNG
- if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ) )
- wxLogError("Can't save file");
-
- image = wxImage( 100, 100 );
+ if ( !image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ))
+ wxLogError(wxT("Can't save file"));
+
+ image.Destroy();
image.LoadFile( dir + wxString("test.png") );
- my_square = new wxBitmap( image.ConvertToBitmap() );
-
- image = wxImage( 100, 100 );
+ my_square = new wxBitmap( image );
+
+ image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG ) )
- wxLogError("Can't load PNG image");
+ if ( !image.LoadFile( dir + wxString("horse.png")) )
+ wxLogError(wxT("Can't load PNG image"));
else
- my_horse_png = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_png = new wxBitmap( image );
#endif // wxUSE_LIBPNG
#if wxUSE_LIBJPEG
- image = wxImage( 100, 100 );
+ image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.jpg") ) )
- wxLogError("Can't load JPG image");
+ if ( !image.LoadFile( dir + wxString("horse.jpg")) )
+ wxLogError(wxT("Can't load JPG image"));
else
- my_horse_jpeg = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_jpeg = new wxBitmap( image );
#endif // wxUSE_LIBJPEG
#if wxUSE_GIF
- image = wxImage( 100, 100 );
+ image.Destroy();
- if ( !image.LoadFile( dir + wxString("horse.gif") ) )
- wxLogError("Can't load GIF image");
+ if ( !image.LoadFile( dir + wxString("horse.gif")) )
+ wxLogError(wxT("Can't load GIF image"));
else
- my_horse_gif = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_gif = new wxBitmap( image );
#endif
#if wxUSE_PCX
- image = wxImage( 100, 100 );
+ image.Destroy();
if ( !image.LoadFile( dir + wxString("horse.pcx"), wxBITMAP_TYPE_PCX ) )
- wxLogError("Can't load PCX image");
+ wxLogError(wxT("Can't load PCX image"));
else
- my_horse_pcx = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_pcx = new wxBitmap( image );
#endif
- image = wxImage( 100, 100 );
+ image.Destroy();
if ( !image.LoadFile( dir + wxString("horse.bmp"), wxBITMAP_TYPE_BMP ) )
- wxLogError("Can't load BMP image");
+ wxLogError(wxT("Can't load BMP image"));
else
- my_horse_bmp = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_bmp = new wxBitmap( image );
+
+#if wxUSE_XPM
+ image.Destroy();
+
+ if ( !image.LoadFile( dir + wxString("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 ))
+ wxLogError(wxT("Can't save file"));
+#endif
#if wxUSE_PNM
- image = wxImage( 100, 100 );
+ image.Destroy();
if ( !image.LoadFile( dir + wxString("horse.pnm"), wxBITMAP_TYPE_PNM ) )
- wxLogError("Can't load PNM image");
+ wxLogError(wxT("Can't load PNM image"));
else
- my_horse_pnm = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_pnm = new wxBitmap( image );
#endif
#if wxUSE_LIBTIFF
- image = wxImage( 100, 100 );
+ image.Destroy();
if ( !image.LoadFile( dir + wxString("horse.tif"), wxBITMAP_TYPE_TIF ) )
- wxLogError("Can't load TIFF image");
+ wxLogError(wxT("Can't load TIFF image"));
else
- my_horse_tiff = new wxBitmap( image.ConvertToBitmap() );
+ my_horse_tiff = new wxBitmap( image );
#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_bmp;
delete my_horse_pcx;
delete my_horse_tiff;
+ delete my_horse_xpm;
delete my_smile_xbm;
delete my_square;
delete my_anti;
if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 );
dc.DrawText( "Drawn directly", 150, 10 );
- dc.SetBrush( wxBrush( "orange", wxSOLID ) );
+ dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) );
dc.SetPen( *wxBLACK_PEN );
dc.DrawRectangle( 150, 30, 100, 100 );
dc.SetBrush( *wxWHITE_BRUSH );
if (my_horse_tiff && my_horse_tiff->Ok())
dc.DrawBitmap( *my_horse_tiff, 30, 1530 );
+ dc.DrawText( "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, 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,
+ dc.DrawText( "XBM bitmap", 30, 1975 );
+ dc.DrawText( "(green on red)", 30, 1990 );
+ dc.SetTextForeground( wxT("GREEN") );
+ dc.SetTextBackground( wxT("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.SetTextForeground( wxT("RED") );
+ wxImage i = my_smile_xbm->ConvertToImage();
+ 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, 1760, TRUE );
+ dc.DrawBitmap( i.ConvertToBitmap(), 150, 2010, TRUE );
+ dc.SetTextForeground( wxT("BLACK") );
}
- dc.SetTextForeground( "BLACK" );
+
wxBitmap mono( 60,50,1 );
wxMemoryDC memdc;
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 );
+ dc.DrawText( "Mono bitmap", 30, 2095 );
+ dc.DrawText( "(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.SetTextForeground( wxT("RED") );
+ wxImage i = mono.ConvertToImage();
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.DrawBitmap( i.ConvertToBitmap(), 150, 2130, TRUE );
+ dc.SetTextForeground( wxT("BLACK") );
}
- dc.DrawText("XPM bitmap", 30, 1950);
+ dc.DrawText("XPM bitmap", 30, 2230);
if ( m_bmpSmileXpm.Ok() )
{
- dc.DrawBitmap(m_bmpSmileXpm, 30, 1975, TRUE);
+ dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, TRUE);
}
- dc.DrawText("XPM icon", 150, 1950);
+ dc.DrawText("XPM icon", 150, 2230);
if ( m_iconSmileXpm.Ok() )
{
- dc.DrawIcon(m_iconSmileXpm, 150, 1975);
+ dc.DrawIcon(m_iconSmileXpm, 150, 2250);
}
}
dc.Clear();
dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
- dc.SetTextForeground( "RED" );
+ dc.SetTextForeground( wxT("RED") );
dc.DrawText( "This is anti-aliased Text.", 20, 20 );
dc.DrawText( "And a Rectangle.", 20, 60 );
dc.SetPen( *wxTRANSPARENT_PEN );
dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 );
- wxImage original( bitmap );
+ wxImage original= bitmap.ConvertToImage();
wxImage anti( 150, 150 );
/* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */
const int ID_QUIT = 108;
const int ID_ABOUT = 109;
+const int ID_NEW = 110;
IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
BEGIN_EVENT_TABLE(MyFrame,wxFrame)
EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
EVT_MENU (ID_QUIT, MyFrame::OnQuit)
+ EVT_MENU (ID_NEW, MyFrame::OnNewFrame)
END_EVENT_TABLE()
MyFrame::MyFrame()
wxPoint(20,20), wxSize(470,360) )
{
wxMenu *file_menu = new wxMenu();
+ file_menu->Append( ID_NEW, "&Show image...");
+ file_menu->AppendSeparator();
file_menu->Append( ID_ABOUT, "&About...");
+ file_menu->AppendSeparator();
file_menu->Append( ID_QUIT, "E&xit");
wxMenuBar *menu_bar = new wxMenuBar();
m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
// 500 width * 2100 height
- m_canvas->SetScrollbars( 10, 10, 50, 210 );
+ m_canvas->SetScrollbars( 10, 10, 50, 220 );
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
"About wxImage Demo", wxICON_INFORMATION | wxOK );
}
+void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) )
+{
+ wxString filename = wxFileSelector(_T("Select image file"));
+ if ( !filename )
+ return;
+
+ wxImage image;
+ if ( !image.LoadFile(filename) )
+ {
+ wxLogError(_T("Couldn't load image from '%s'."), filename.c_str());
+
+ return;
+ }
+
+ (new MyImageFrame(this, image.ConvertToBitmap()))->Show();
+}
+
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
wxImage::AddHandler( new wxPNMHandler );
#endif
+#if wxUSE_XPM
+ wxImage::AddHandler( new wxXPMHandler );
+#endif
+
wxFrame *frame = new MyFrame();
frame->Show( TRUE );
projects / wxWidgets.git / blobdiff