handle failure of gtk_drag_begin() (which can happen e.g. because gdk_pointer_grab...

[wxWidgets.git] / include / wx / gtk / bitmap.h

diff --git a/include/wx/gtk/bitmap.h b/include/wx/gtk/bitmap.h
index 45258f067b7e9a0b2f05012b2b26eab10dfa5729..98bc4a8beea942192afda6193e56a176f3049182 100644 (file)
--- a/include/wx/gtk/bitmap.h
+++ b/include/wx/gtk/bitmap.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        bitmap.h
+// Name:        wx/gtk/bitmap.h

 // Purpose:
 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Purpose:
 // Author:      Robert Roebling
 // RCS-ID:      $Id$


@@ -7,107 +7,158 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

+#ifndef _WX_GTK_BITMAP_H_
+#define _WX_GTK_BITMAP_H_

 
 

-#ifndef __GTKBITMAPH__
-#define __GTKBITMAPH__
-
-#ifdef __GNUG__
-#pragma interface
-#endif
-
-#include "wx/defs.h"
-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/palette.h"
+typedef struct _GdkPixbuf GdkPixbuf;
+class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// classes
+// wxMask

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-class wxMask;
-class wxBitmap;
+class WXDLLIMPEXP_CORE wxMask: public wxObject
+{
+public:
+    wxMask();
+    wxMask( const wxBitmap& bitmap, const wxColour& colour );
+#if wxUSE_PALETTE
+    wxMask( const wxBitmap& bitmap, int paletteIndex );
+#endif // wxUSE_PALETTE
+    wxMask( const wxBitmap& bitmap );
+    virtual ~wxMask();
+
+    bool Create( const wxBitmap& bitmap, const wxColour& colour );
+#if wxUSE_PALETTE
+    bool Create( const wxBitmap& bitmap, int paletteIndex );
+#endif // wxUSE_PALETTE
+    bool Create( const wxBitmap& bitmap );
+
+    // implementation
+    GdkBitmap   *m_bitmap;
+
+    GdkBitmap *GetBitmap() const;
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxMask)
+};

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// also implemented here from wxImage
+// wxBitmap

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-/*
-class wxImage : wxGDIObject
+class WXDLLIMPEXP_CORE wxBitmap: public wxBitmapBase

 {
 {

-  wxImage( const wxBitmap &bitmap );
-  wxBitmap ConvertToBitmap() const;
-}
-*/
+public:
+    wxBitmap() { }
+    wxBitmap( int width, int height, int depth = -1 );
+    wxBitmap( const char bits[], int width, int height, int depth = 1 );
+    wxBitmap( const char* const* bits );
+#ifdef wxNEEDS_CHARPP
+    // needed for old GCC
+    wxBitmap(char** data)
+    {
+        *this = wxBitmap(wx_const_cast(const char* const*, data));
+    }
+#endif
+    wxBitmap( const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM );
+#if wxUSE_IMAGE
+    wxBitmap( const wxImage& image, int depth = -1 ) { (void)CreateFromImage(image, depth); }
+#endif // wxUSE_IMAGE
+    virtual ~wxBitmap();
+    bool Ok() const { return IsOk(); }
+    bool IsOk() const;

 
 

-//-----------------------------------------------------------------------------
-// wxMask
-//-----------------------------------------------------------------------------
+    bool Create(int width, int height, int depth = -1);

 
 

-class wxMask: public wxObject
-{
-  DECLARE_DYNAMIC_CLASS(wxMask)
+    int GetHeight() const;
+    int GetWidth() const;
+    int GetDepth() const;
+
+#if wxUSE_IMAGE
+    wxImage ConvertToImage() const;
+#endif // wxUSE_IMAGE
+
+    // copies the contents and mask of the given (colour) icon to the bitmap
+    virtual bool CopyFromIcon(const wxIcon& icon);
+
+    wxMask *GetMask() const;
+    void SetMask( wxMask *mask );
+
+    wxBitmap GetSubBitmap( const wxRect& rect ) const;
+
+    bool SaveFile(const wxString &name, wxBitmapType type,
+                          const wxPalette *palette = (wxPalette *)NULL) const;
+    bool LoadFile(const wxString &name, wxBitmapType type = wxBITMAP_TYPE_XPM );
+
+#if wxUSE_PALETTE
+    wxPalette *GetPalette() const;
+    void SetPalette(const wxPalette& palette);
+    wxPalette *GetColourMap() const { return GetPalette(); };
+#endif // wxUSE_PALETTE
+
+    static void InitStandardHandlers();
+
+    // implementation
+    // --------------
+
+    void SetHeight( int height );
+    void SetWidth( int width );
+    void SetDepth( int depth );
+    void SetPixmap( GdkPixmap *pixmap );
+    void SetPixbuf(GdkPixbuf* pixbuf, int depth = 0);
+
+    GdkPixmap *GetPixmap() const;
+    bool HasPixmap() const;
+    bool HasPixbuf() const;
+    GdkPixbuf *GetPixbuf() const;
+
+    // Basically, this corresponds to Win32 StretchBlt()
+    wxBitmap Rescale(int clipx, int clipy, int clipwidth, int clipheight, int width, int height) const;
+
+    // raw bitmap access support functions
+    void *GetRawData(wxPixelDataBase& data, int bpp);
+    void UngetRawData(wxPixelDataBase& data);
+
+    bool HasAlpha() const;
+
+protected:
+#if wxUSE_IMAGE
+    bool CreateFromImage(const wxImage& image, int depth);
+#endif // wxUSE_IMAGE
+
+    virtual wxObjectRefData* CreateRefData() const;
+    virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
+
+private:
+#if wxUSE_IMAGE
+    // to be called from CreateFromImage only!
+    bool CreateFromImageAsPixmap(const wxImage& image, int depth);
+    bool CreateFromImageAsPixbuf(const wxImage& image);
+#endif // wxUSE_IMAGE

 
 public:
 
 public:

-  wxMask();
-  wxMask( const wxBitmap& bitmap, const wxColour& colour );
-  wxMask( const wxBitmap& bitmap, int paletteIndex );
-  wxMask( const wxBitmap& bitmap );
-  ~wxMask();
-
- // implementation
-    
-  GdkBitmap   *m_bitmap;
-  GdkBitmap *GetBitmap() const;
+    // implementation only
+    enum Representation
+    {
+        Pixmap,
+        Pixbuf
+    };
+    // removes other representations from memory, keeping only 'keep'
+    // (wxBitmap may keep same bitmap e.g. as both pixmap and pixbuf):
+    void PurgeOtherRepresentations(Representation keep);
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxBitmap)

 };
 
 //-----------------------------------------------------------------------------
 };
 
 //-----------------------------------------------------------------------------

-// wxBitmap
+// wxBitmapHandler

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-class wxBitmap: public wxObject
+class WXDLLIMPEXP_CORE wxBitmapHandler: public wxBitmapHandlerBase

 {
 {

-  DECLARE_DYNAMIC_CLASS(wxBitmap)
-
-public:
-  wxBitmap();
-  wxBitmap( int width, int height, int depth = -1 );
-  wxBitmap( const char bits[], int width, int height, int depth = 1 );
-  wxBitmap( const char **bits );
-  wxBitmap( char **bits );
-  wxBitmap( const wxBitmap& bmp );
-  wxBitmap( const wxBitmap* bmp );
-  wxBitmap( const wxString &filename, int type = wxBITMAP_TYPE_XPM );
-  ~wxBitmap();
-  wxBitmap& operator = ( const wxBitmap& bmp );
-  bool operator == ( const wxBitmap& bmp );
-  bool operator != ( const wxBitmap& bmp );
-  bool Ok() const;
-    
-  int GetHeight() const;
-  int GetWidth() const;
-  int GetDepth() const;
-
-  wxMask *GetMask() const;
-  void SetMask( wxMask *mask );
-
-  bool SaveFile( const wxString &name, int type, wxPalette *palette = (wxPalette *) NULL );
-  bool LoadFile( const wxString &name, int type = wxBITMAP_TYPE_XPM );
-
-  wxPalette *GetPalette() const;
-  wxPalette *GetColourMap() const
-    { return GetPalette(); };
-      
-// implementation      
-
-  void SetHeight( int height );
-  void SetWidth( int width );
-  void SetDepth( int depth );
-  void SetPixmap( GdkPixmap *pixmap );
-  
-  GdkPixmap *GetPixmap() const;
-  GdkBitmap *GetBitmap() const;
-
-    // no data :-)
+    DECLARE_ABSTRACT_CLASS(wxBitmapHandler)

 };
 
 };
 

-#endif // __GTKBITMAPH__
+#endif // _WX_GTK_BITMAP_H_