Support using GetTextExtent() with empty string to get descent in wxOSX.

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

diff --git a/include/wx/anidecod.h b/include/wx/anidecod.h
index 4375a24f70bacbcb3ba56867bff30708d6fe7bac..15b3adfe11fe535c25f85e6a2955e30ee50f7a2a 100644 (file)
--- a/include/wx/anidecod.h
+++ b/include/wx/anidecod.h
@@ -12,55 +12,42 @@
 
 #include "wx/defs.h"
 
-#if wxUSE_STREAMS && wxUSE_ICO_CUR
+#if wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF)
 
 #include "wx/stream.h"
 #include "wx/image.h"
 #include "wx/animdecod.h"
+#include "wx/dynarray.h"
 
 
-class /*WXDLLEXPORT*/ wxANIFrameInfo;
+class /*WXDLLIMPEXP_CORE*/ wxANIFrameInfo;      // private implementation detail
 
-WX_DECLARE_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray);
-WX_DECLARE_OBJARRAY(wxImage, wxImageArray);
+WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray);
+WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray);
 
 // --------------------------------------------------------------------------
 // wxANIDecoder class
 // --------------------------------------------------------------------------
 
-class WXDLLEXPORT wxANIDecoder : public wxAnimationDecoder
+class WXDLLIMPEXP_CORE wxANIDecoder : public wxAnimationDecoder
 {
-private:
-
-    // frames stored as wxImage(s): ANI files are meant to be used mostly for animated
-    // cursors and thus they do not use any optimization to encode differences between
-    // two frames: they are just a list of images to display sequentially.
-    wxImageArray m_images;
-
-    // the info about each image stored in m_images.
-    // NB: m_info.GetCount() may differ from m_images.GetCount()!
-    wxANIFrameInfoArray m_info;
-
-    // this is the wxCURHandler used to load the ICON chunk of the ANI files
-    static wxCURHandler sm_handler;
-
-public:
-    virtual wxSize GetFrameSize(size_t frame) const;
-    virtual wxPoint GetFramePosition(size_t frame) const;
-    virtual wxAnimationDisposal GetDisposalMethod(size_t frame) const;
-    virtual long GetDelay(size_t frame) const;
-
 public:
     // constructor, destructor, etc.
     wxANIDecoder();
     ~wxANIDecoder();
 
-public:     // implementation of wxAnimationDecoder's pure virtuals
 
-    virtual bool CanRead( wxInputStream& stream ) const;
+    virtual wxSize GetFrameSize(unsigned int frame) const;
+    virtual wxPoint GetFramePosition(unsigned int frame) const;
+    virtual wxAnimationDisposal GetDisposalMethod(unsigned int frame) const;
+    virtual long GetDelay(unsigned int frame) const;
+    virtual wxColour GetTransparentColour(unsigned int frame) const;
+
+    // implementation of wxAnimationDecoder's pure virtuals
+
     virtual bool Load( wxInputStream& stream );
 
-    bool ConvertToImage(size_t frame, wxImage *image) const;
+    bool ConvertToImage(unsigned int frame, wxImage *image) const;
 
     wxAnimationDecoder *Clone() const
         { return new wxANIDecoder; }
@@ -68,10 +55,27 @@ public:     // implementation of wxAnimationDecoder's pure virtuals
         { return wxANIMATION_TYPE_ANI; }
 
 private:
-    DECLARE_NO_COPY_CLASS(wxANIDecoder)
+    // wxAnimationDecoder pure virtual:
+    virtual bool DoCanRead( wxInputStream& stream ) const;
+            // modifies current stream position (see wxAnimationDecoder::CanRead)
+
+    // frames stored as wxImage(s): ANI files are meant to be used mostly for animated
+    // cursors and thus they do not use any optimization to encode differences between
+    // two frames: they are just a list of images to display sequentially.
+    wxImageArray m_images;
+
+    // the info about each image stored in m_images.
+    // NB: m_info.GetCount() may differ from m_images.GetCount()!
+    wxANIFrameInfoArray m_info;
+
+    // this is the wxCURHandler used to load the ICON chunk of the ANI files
+    static wxCURHandler sm_handler;
+
+
+    wxDECLARE_NO_COPY_CLASS(wxANIDecoder);
 };
 
 
-#endif  // wxUSE_STREAM && wxUSE_ICO_CUR
+#endif  // wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF)
 
 #endif  // _WX_ANIDECOD_H