X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ba4800d3aeb254dd00277ff0a71df9321ca692dc..86ac84b8ce086e6bbda58f422d41f84268606e35:/include/wx/image.h?ds=sidebyside

diff --git a/include/wx/image.h b/include/wx/image.h
index bc9ce0bfca..bf3e3e78fb 100644
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -97,10 +97,17 @@ public:
         { }
 
 #if wxUSE_STREAMS
-    virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
-    virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
-
-    virtual int GetImageCount( wxInputStream& stream );
+    // NOTE: LoadFile and SaveFile are not pure virtuals to allow derived classes
+    //       to implement only one of the two
+    virtual bool LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), 
+                           bool WXUNUSED(verbose)=true, int WXUNUSED(index)=-1 )
+        { return false; }
+    virtual bool SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), 
+                           bool WXUNUSED(verbose)=true )
+        { return false; }
+
+    int GetImageCount( wxInputStream& stream );
+        // save the stream position, call DoGetImageCount() and restore the position
 
     bool CanRead( wxInputStream& stream ) { return CallDoCanRead(stream); }
     bool CanRead( const wxString& name );
@@ -108,7 +115,7 @@ public:
 
     void SetName(const wxString& name) { m_name = name; }
     void SetExtension(const wxString& ext) { m_extension = ext; }
-    void SetAlExtensions(const wxArrayString& exts) { m_altExtensions = exts; }
+    void SetAltExtensions(const wxArrayString& exts) { m_altExtensions = exts; }
     void SetType(wxBitmapType type) { m_type = type; }
     void SetMimeType(const wxString& type) { m_mime = type; }
     const wxString& GetName() const { return m_name; }
@@ -125,6 +132,13 @@ public:
 
 protected:
 #if wxUSE_STREAMS
+    // NOTE: this function is allowed to change the current stream position
+    //       since GetImageCount() will take care of restoring it later
+    virtual int DoGetImageCount( wxInputStream& WXUNUSED(stream) ) 
+        { return 1; }       // default return value is 1 image
+    
+    // NOTE: this function is allowed to change the current stream position
+    //       since CallDoCanRead() will take care of restoring it later
     virtual bool DoCanRead( wxInputStream& stream ) = 0;
 
     // save the stream position, call DoCanRead() and restore the position
@@ -221,27 +235,54 @@ public:
     };
 
     wxImage() {}
-    wxImage( int width, int height, bool clear = true );
-    wxImage( int width, int height, unsigned char* data, bool static_data = false );
-    wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
-    wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );
-    wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
-    wxImage( const char* const* xpmData );
+    wxImage( int width, int height, bool clear = true )
+        { Create( width, height, clear ); }
+    wxImage( int width, int height, unsigned char* data, bool static_data = false )
+        { Create( width, height, data, static_data ); }
+    wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false )
+        { Create( width, height, data, alpha, static_data ); }
+
+    // ctor variants using wxSize:
+    wxImage( const wxSize& sz, bool clear = true )
+        { Create( sz, clear ); }
+    wxImage( const wxSize& sz, unsigned char* data, bool static_data = false )
+        { Create( sz, data, static_data ); }
+    wxImage( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false )
+        { Create( sz, data, alpha, static_data ); }
+
+    wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 )
+        { LoadFile( name, type, index ); }
+    wxImage( const wxString& name, const wxString& mimetype, int index = -1 )
+        { LoadFile( name, mimetype, index ); }
+    wxImage( const char* const* xpmData )
+        { Create(xpmData); }
 
 #if wxUSE_STREAMS
-    wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );
-    wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
+    wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 )
+        { LoadFile( stream, type, index ); }
+    wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 )
+        { LoadFile( stream, mimetype, index ); }
 #endif // wxUSE_STREAMS
 
-    bool Create( int width, int height, bool clear = true );
-    bool Create( int width, int height, unsigned char* data, bool static_data = false );
-    bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
     bool Create( const char* const* xpmData );
 #ifdef __BORLANDC__
     // needed for Borland 5.5
     wxImage( char** xpmData ) { Create(const_cast<const char* const*>(xpmData)); }
     bool Create( char** xpmData ) { return Create(const_cast<const char* const*>(xpmData)); }
 #endif
+
+    bool Create( int width, int height, bool clear = true );
+    bool Create( int width, int height, unsigned char* data, bool static_data = false );
+    bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
+    
+    // Create() variants using wxSize:
+    bool Create( const wxSize& sz, bool clear = true )
+        { return Create(sz.GetWidth(), sz.GetHeight(), clear); }
+    bool Create( const wxSize& sz, unsigned char* data, bool static_data = false )
+        { return Create(sz.GetWidth(), sz.GetHeight(), data, static_data); }
+    bool Create( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false )
+        { return Create(sz.GetWidth(), sz.GetHeight(), data, alpha, static_data); }
+
     void Destroy();
    
     // initialize the image data with zeroes