Prevent seg fault for older GTK+

[wxWidgets.git] / include / wx / image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index 3e3e8d46f59033a9955691771a2af6db7d3e32ce..afcbaf95c2fd16492ff7b7554cf411ab50101ae6 100644 (file)
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -37,9 +37,17 @@
 #define wxIMAGE_OPTION_RESOLUTIONUNIT        wxString(_T("ResolutionUnit"))
 
 // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT
-enum
+//
+// NB: don't change these values, they correspond to libjpeg constants
+enum wxImageResolution
 {
+    // Resolution not specified
+    wxIMAGE_RESOLUTION_NONE = 0,
+
+    // Resolution specified in inches
     wxIMAGE_RESOLUTION_INCHES = 1,
+
+    // Resolution specified in centimeters
     wxIMAGE_RESOLUTION_CM = 2
 };
 
@@ -65,6 +73,15 @@ class WXDLLEXPORT wxImageHandler;
 class WXDLLEXPORT wxImage;
 class WXDLLEXPORT wxPalette;
 
+//-----------------------------------------------------------------------------
+// wxVariant support
+//-----------------------------------------------------------------------------
+
+#if wxUSE_VARIANT
+#include "wx/variant.h"
+DECLARE_VARIANT_OBJECT_EXPORTED(wxImage,WXDLLEXPORT)
+#endif
+
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
@@ -90,10 +107,10 @@ public:
     void SetExtension(const wxString& ext) { m_extension = ext; }
     void SetType(long type) { m_type = type; }
     void SetMimeType(const wxString& type) { m_mime = type; }
-    wxString GetName() const { return m_name; }
-    wxString GetExtension() const { return m_extension; }
+    const wxString& GetName() const { return m_name; }
+    const wxString& GetExtension() const { return m_extension; }
     long GetType() const { return m_type; }
-    wxString GetMimeType() const { return m_mime; }
+    const wxString& GetMimeType() const { return m_mime; }
 
 protected:
 #if wxUSE_STREAMS
@@ -103,6 +120,13 @@ protected:
     bool CallDoCanRead(wxInputStream& stream);
 #endif // wxUSE_STREAMS
 
+    // helper for the derived classes SaveFile() implementations: returns the
+    // values of x- and y-resolution options specified as the image options if
+    // any
+    static wxImageResolution
+    GetResolutionFromOptions(const wxImage& image, int *x, int *y);
+
+
     wxString  m_name;
     wxString  m_extension;
     wxString  m_mime;
@@ -190,8 +214,7 @@ public:
     wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
     wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
     wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
-    wxImage( const char** xpmData );
-    wxImage( char** xpmData );
+    wxImage( const char* const* xpmData );
 
 #if wxUSE_STREAMS
     wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
@@ -201,7 +224,12 @@ public:
     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** xpmData );
+    bool Create( const char* const* xpmData );
+#ifdef __BORLANDC__
+    // needed for Borland 5.5
+    wxImage( char** xpmData ) { Create(wx_const_cast(const char* const*, xpmData)); }
+    bool Create( char** xpmData ) { return Create(wx_const_cast(const char* const*, xpmData)); }
+#endif
     void Destroy();
 
     // creates an identical copy of the image (the = operator
@@ -319,7 +347,8 @@ public:
     virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
 #endif
 
-    bool Ok() const;
+    bool Ok() const { return IsOk(); }
+    bool IsOk() const;
     int GetWidth() const;
     int GetHeight() const;
 
@@ -378,11 +407,6 @@ public:
     // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees
     void RotateHue(double angle);
 
-    bool operator == (const wxImage& image) const
-        { return m_refData == image.m_refData; }
-    bool operator != (const wxImage& image) const
-        { return m_refData != image.m_refData; }
-
     static wxList& GetHandlers() { return sm_handlers; }
     static void AddHandler( wxImageHandler *handler );
     static void InsertHandler( wxImageHandler *handler );
@@ -433,6 +457,7 @@ extern WXDLLEXPORT_DATA(wxImage)    wxNullImage;
 #include "wx/imaggif.h"
 #include "wx/imagpcx.h"
 #include "wx/imagjpeg.h"
+#include "wx/imagtga.h"
 #include "wx/imagtiff.h"
 #include "wx/imagpnm.h"
 #include "wx/imagxpm.h"