X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/952ae1e88b9092f493b4ea6911a2b60b378d422d..5d644707ca96dcaa63dc5a24c9eb5c2b7ee0b50d:/include/wx/image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index eaeb0f085f..7718cacdeb 100644
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -27,6 +27,8 @@
 
 #if wxUSE_IMAGE
 
+#define wxIMAGE_OPTION_FILENAME wxString(_T("FileName"))
+
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
@@ -41,7 +43,9 @@ class WXDLLEXPORT wxImage;
 class WXDLLEXPORT wxImageHandler: public wxObject
 {
 public:
-    wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
+    wxImageHandler()
+        : m_name(""), m_extension(""), m_mime(), m_type(0)
+        { }
 
 #if wxUSE_STREAMS
     virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=-1 );
@@ -49,7 +53,7 @@ public:
 
     virtual int GetImageCount( wxInputStream& stream );
 
-    bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); }
+    bool CanRead( wxInputStream& stream ) { return CallDoCanRead(stream); }
     bool CanRead( const wxString& name );
 #endif // wxUSE_STREAMS
 
@@ -65,6 +69,9 @@ public:
 protected:
 #if wxUSE_STREAMS
     virtual bool DoCanRead( wxInputStream& stream ) = 0;
+
+    // save the stream position, call DoCanRead() and restore the position
+    bool CallDoCanRead(wxInputStream& stream);
 #endif // wxUSE_STREAMS
 
     wxString  m_name;
@@ -113,7 +120,7 @@ public:
     wxImage( const wxImage& image );
     wxImage( const wxImage* image );
 
-#if wxUSE_GUI
+#if WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI
     // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead):
     wxImage( const wxBitmap &bitmap );
     wxBitmap ConvertToBitmap() const;
@@ -168,7 +175,7 @@ public:
     // RGB values than <startR,startG,startB>
     bool FindFirstUnusedColour( unsigned char *r, unsigned char *g, unsigned char *b,
                                 unsigned char startR = 1, unsigned char startG = 0,
-                                unsigned char startB = 0 );
+                                unsigned char startB = 0 ) const;
     // Set image's mask to the area of 'mask' that has <r,g,b> colour
     bool SetMaskFromImage(const wxImage & mask,
                           unsigned char mr, unsigned char mg, unsigned char mb);
@@ -185,12 +192,13 @@ public:
     virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif
 
-    virtual bool SaveFile( const wxString& name, int type );
-    virtual bool SaveFile( const wxString& name, const wxString& mimetype );
+    virtual bool SaveFile( const wxString& name ) const;
+    virtual bool SaveFile( const wxString& name, int type ) const;
+    virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
 
 #if wxUSE_STREAMS
-    virtual bool SaveFile( wxOutputStream& stream, int type );
-    virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
+    virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+    virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
 #endif
 
     bool Ok() const;
@@ -223,7 +231,7 @@ public:
     int GetOptionInt(const wxString& name) const;
     bool HasOption(const wxString& name) const;
 
-    unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 );
+    unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ) const;
 
     // Computes the histogram of the image and fills a hash table, indexed
     // with integer keys built as 0xRRGGBB, containing wxImageHistogramEntry
@@ -231,7 +239,7 @@ public:
     // with the image colours) and a 'value', which is the number of pixels 
     // in the image with that colour.
     // Returned value: # of entries in the histogram
-    unsigned long ComputeHistogram( wxImageHistogram &h );
+    unsigned long ComputeHistogram( wxImageHistogram &h ) const;
 
     wxImage& operator = (const wxImage& image)
     {