avoiding crash for pure modifier events

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

diff --git a/include/wx/msw/gdiimage.h b/include/wx/msw/gdiimage.h
index 2111414a63e63ba96c0502bd72d93565b6645ddb..6ab0fa5a7761c69d38876634955655fa28ca83c4 100644 (file)
--- a/include/wx/msw/gdiimage.h
+++ b/include/wx/msw/gdiimage.h
@@ -20,9 +20,9 @@
 #include "wx/gdicmn.h"          // wxBITMAP_TYPE_INVALID
 #include "wx/list.h"
 
-class WXDLLEXPORT wxGDIImageRefData;
-class WXDLLEXPORT wxGDIImageHandler;
-class WXDLLEXPORT wxGDIImage;
+class WXDLLIMPEXP_FWD_CORE wxGDIImageRefData;
+class WXDLLIMPEXP_FWD_CORE wxGDIImageHandler;
+class WXDLLIMPEXP_FWD_CORE wxGDIImage;
 
 WX_DECLARE_EXPORTED_LIST(wxGDIImageHandler, wxGDIImageHandlerList);
 
@@ -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()
@@ -51,7 +51,7 @@ public:
     }
 
     // accessors
-    bool IsOk() const { return m_handle != 0; }
+    virtual bool IsOk() const { return m_handle != 0; }
 
     void SetSize(int w, int h) { m_width = w; m_height = h; }
 
@@ -76,58 +76,13 @@ public:
     };
 };
 
-// ----------------------------------------------------------------------------
-// wxGDIImageHandler: a class which knows how to load/save wxGDIImages.
-// ----------------------------------------------------------------------------
-
-class WXDLLEXPORT wxGDIImageHandler : public wxObject
-{
-public:
-    // ctor
-    wxGDIImageHandler() { m_type = wxBITMAP_TYPE_INVALID; }
-    wxGDIImageHandler(const wxString& name,
-                      const wxString& ext,
-                      long type)
-        : m_name(name), m_extension(ext)
-    {
-        m_type = type;
-    }
-
-    // accessors
-    void SetName(const wxString& name) { m_name = name; }
-    void SetExtension(const wxString& ext) { m_extension = ext; }
-    void SetType(long type) { m_type = type; }
-
-    const wxString& GetName() const { return m_name; }
-    const wxString& GetExtension() const { return m_extension; }
-    long GetType() const { return m_type; }
-
-    // real handler operations: to implement in derived classes
-    virtual bool Create(wxGDIImage *image,
-                        const void* data,
-                        long flags,
-                        int width, int height, int depth = 1) = 0;
-    virtual bool Load(wxGDIImage *image,
-                      const wxString& name,
-                      long flags,
-                      int desiredWidth, int desiredHeight) = 0;
-    virtual bool Save(wxGDIImage *image,
-                      const wxString& name,
-                      int type) = 0;
-
-protected:
-    wxString  m_name;
-    wxString  m_extension;
-    long      m_type;
-};
-
 // ----------------------------------------------------------------------------
 // wxGDIImage: this class supports GDI image handlers which may be registered
 // dynamically and will be used for loading/saving the images in the specified
 // 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
@@ -154,9 +109,6 @@ public:
     void SetHandle(WXHANDLE handle)
         { AllocExclusive(); GetGDIImageData()->m_handle = handle; }
 
-    bool Ok() const { return IsOk(); }
-    bool IsOk() const { return GetHandle() != 0; }
-
     int GetWidth() const { return IsNull() ? 0 : GetGDIImageData()->m_width; }
     int GetHeight() const { return IsNull() ? 0 : GetGDIImageData()->m_height; }
     int GetDepth() const { return IsNull() ? 0 : GetGDIImageData()->m_depth; }
@@ -180,10 +132,61 @@ protected:
     // create the data for the derived class here
     virtual wxGDIImageRefData *CreateData() const = 0;
 
-    // implement the wxObject method in terms of our, more specific, one
-    virtual wxObjectRefData *CreateRefData() const { return CreateData(); }
+    // implement the wxGDIObject method in terms of our, more specific, one
+    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( _T("must be implemented if used") );
+
+        return NULL;
+    }
 
     static wxGDIImageHandlerList ms_handlers;
 };
 
+// ----------------------------------------------------------------------------
+// wxGDIImageHandler: a class which knows how to load/save wxGDIImages.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxGDIImageHandler : public wxObject
+{
+public:
+    // ctor
+    wxGDIImageHandler() { m_type = wxBITMAP_TYPE_INVALID; }
+    wxGDIImageHandler(const wxString& name,
+                      const wxString& ext,
+                      wxBitmapType type)
+        : m_name(name), m_extension(ext), m_type(type) { }
+
+    // accessors
+    void SetName(const wxString& name) { m_name = name; }
+    void SetExtension(const wxString& ext) { m_extension = ext; }
+    void SetType(wxBitmapType type) { m_type = type; }
+
+    const wxString& GetName() const { return m_name; }
+    const wxString& GetExtension() const { return m_extension; }
+    wxBitmapType GetType() const { return m_type; }
+
+    // real handler operations: to implement in derived classes
+    virtual bool Create(wxGDIImage *image,
+                        const void* data,
+                        wxBitmapType flags,
+                        int width, int height, int depth = 1) = 0;
+    virtual bool Load(wxGDIImage *image,
+                      const wxString& name,
+                      wxBitmapType flags,
+                      int desiredWidth, int desiredHeight) = 0;
+    virtual bool Save(const wxGDIImage *image,
+                      const wxString& name,
+                      wxBitmapType type) const = 0;
+
+protected:
+    wxString  m_name;
+    wxString  m_extension;
+    wxBitmapType m_type;
+};
+
 #endif // _WX_MSW_GDIIMAGE_H_