check for self assignment in operator=

[wxWidgets.git] / include / wx / palmos / gdiimage.h

diff --git a/include/wx/palmos/gdiimage.h b/include/wx/palmos/gdiimage.h
index 3d5253328b8a27614925c51ddba1230be9aa3f80..43edb57a0c55d7f102be90a61634538f1e6dac63 100644 (file)
--- a/include/wx/palmos/gdiimage.h
+++ b/include/wx/palmos/gdiimage.h
@@ -3,7 +3,7 @@
 // Purpose:     wxGDIImage class: base class for wxBitmap, wxIcon, wxCursor
 //              under Palm OS
 // Author:      William Osborne - minimal working wxPalmOS port
-// Modified by:
+// Modified by: Yunhui Fu
 // Created:     10/13/04
 // RCS-ID:      $Id$
 // Copyright:   (c) William Osborne
@@ -30,7 +30,7 @@ WX_DECLARE_EXPORTED_LIST(wxGDIImageHandler, wxGDIImageHandlerList);
 // wxGDIImageRefData: common data fields for all derived classes
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGDIImageRefData : public wxGDIRefData
+class WXDLLIMPEXP_CORE wxGDIImageRefData : public wxGDIRefData
 {
 public:
     wxGDIImageRefData()
@@ -70,7 +70,7 @@ public:
 // wxGDIImageHandler: a class which knows how to load/save wxGDIImages.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGDIImageHandler : public wxObject
+class WXDLLIMPEXP_CORE wxGDIImageHandler : public wxObject
 {
 public:
     // ctor
@@ -117,7 +117,7 @@ protected:
 // format. It also falls back to wxImage if no appropriate image is found.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGDIImage : public wxGDIObject
+class WXDLLIMPEXP_CORE wxGDIImage : public wxGDIObject
 {
 public:
     // handlers list interface
@@ -151,6 +151,12 @@ public:
     int GetHeight() const { return IsNull() ? 0 : GetGDIImageData()->m_height; }
     int GetDepth() const { return IsNull() ? 0 : GetGDIImageData()->m_depth; }
 
+    wxSize GetSize() const
+    {
+        return IsNull() ? wxSize(0,0) :
+               wxSize(GetGDIImageData()->m_width, GetGDIImageData()->m_height);
+    }
+
     void SetWidth(int w) { EnsureHasData(); GetGDIImageData()->m_width = w; }
     void SetHeight(int h) { EnsureHasData(); GetGDIImageData()->m_height = h; }
     void SetDepth(int d) { EnsureHasData(); GetGDIImageData()->m_depth = d; }
@@ -170,6 +176,14 @@ protected:
     // create the data for the derived class here
     virtual wxGDIImageRefData *CreateData() const = 0;
     virtual wxGDIRefData *CreateGDIRefData() const { return CreateData(); }
+    // we can't [efficiently] clone objects of this class
+    virtual wxGDIRefData *
+    CloneGDIRefData(const wxGDIRefData *WXUNUSED(data)) const
+    {
+        wxFAIL_MSG( wxT("must be implemented if used") );
+
+        return NULL;
+    }
 
     static wxGDIImageHandlerList ms_handlers;
 };