Use wxAlphaPixelData if the source bitmap depth is 32 or if on wxGTK and there is...

[wxWidgets.git] / include / wx / os2 / bitmap.h

diff --git a/include/wx/os2/bitmap.h b/include/wx/os2/bitmap.h
index 1d2f5417e504c6b8279007c583323deefe1fd556..653dd9635a66aea007158ae92aa64d97f1b2d8b4 100644 (file)
--- a/include/wx/os2/bitmap.h
+++ b/include/wx/os2/bitmap.h
@@ -1,197 +1,372 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        bitmap.h
+// Name:        wx/os2/bitmap.h

 // Purpose:     wxBitmap class
 // Purpose:     wxBitmap class

-// Author:      AUTHOR
+// Author:      David Webster

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     11/28/99

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) David Webster
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_BITMAP_H_
 #define _WX_BITMAP_H_
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_BITMAP_H_
 #define _WX_BITMAP_H_
 

-#ifdef __GNUG__
-#pragma interface "bitmap.h"
-#endif
-
-#include "wx/gdiobj.h"
+#include "wx/os2/private.h"
+#include "wx/os2/gdiimage.h"

 #include "wx/gdicmn.h"
 #include "wx/palette.h"
 
 #include "wx/gdicmn.h"
 #include "wx/palette.h"
 

-// Bitmap
-class WXDLLEXPORT wxDC;
-class WXDLLEXPORT wxControl;
-class WXDLLEXPORT wxBitmap;
-class WXDLLEXPORT wxBitmapHandler;
-class WXDLLEXPORT wxIcon;
-class WXDLLEXPORT wxCursor;
-
-// A mask is a mono bitmap used for drawing bitmaps
-// transparently.
-class WXDLLEXPORT wxMask: public wxObject
+class WXDLLIMPEXP_FWD_CORE wxDC;
+class WXDLLIMPEXP_FWD_CORE wxControl;
+class WXDLLIMPEXP_FWD_CORE wxBitmap;
+class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
+class WXDLLIMPEXP_FWD_CORE wxIcon;
+class WXDLLIMPEXP_FWD_CORE wxMask;
+class WXDLLIMPEXP_FWD_CORE wxCursor;
+class WXDLLIMPEXP_FWD_CORE wxControl;
+class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
+
+// ----------------------------------------------------------------------------
+// Bitmap data
+//
+// NB: this class is private, but declared here to make it possible inline
+//     wxBitmap functions accessing it
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxBitmapRefData : public wxGDIImageRefData

 {
 {

-  DECLARE_DYNAMIC_CLASS(wxMask)
-

 public:
 public:

-  wxMask();
+    wxBitmapRefData();
+    wxBitmapRefData(const wxBitmapRefData &tocopy);
+    virtual ~wxBitmapRefData() { Free(); }

 
 

-  // Construct a mask from a bitmap and a colour indicating
-  // the transparent area
-  wxMask(const wxBitmap& bitmap, const wxColour& colour);
+    virtual void Free();

 
 

-  // Construct a mask from a bitmap and a palette index indicating
-  // the transparent area
-  wxMask(const wxBitmap& bitmap, int paletteIndex);
+public:
+    int                             m_nNumColors;
+    wxPalette                       m_vBitmapPalette;
+    int                             m_nQuality;

 
 

-  // Construct a mask from a mono bitmap (copies the bitmap).
-  wxMask(const wxBitmap& bitmap);
+    // OS2-specific
+    // ------------

 
 

-  ~wxMask();
+    wxDC*                           m_pSelectedInto;

 
 

-  bool Create(const wxBitmap& bitmap, const wxColour& colour);
-  bool Create(const wxBitmap& bitmap, int paletteIndex);
-  bool Create(const wxBitmap& bitmap);
+    //
+    // Optional mask for transparent drawing
+    //
+    wxMask*                         m_pBitmapMask;
+}; // end of CLASS wxBitmapRefData

 
 

-/* TODO: platform-specific data access
-  // Implementation
-  inline WXHBITMAP GetMaskBitmap() const { return m_maskBitmap; }
-  inline void SetMaskBitmap(WXHBITMAP bmp) { m_maskBitmap = bmp; }
-protected:
-  WXHBITMAP m_maskBitmap;
-*/
-};
+// ----------------------------------------------------------------------------
+// wxBitmap: a mono or colour bitmap
+// ----------------------------------------------------------------------------

 
 

-class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
+class WXDLLIMPEXP_CORE wxBitmap : public wxGDIImage

 {
 {

-    friend class WXDLLEXPORT wxBitmap;
-    friend class WXDLLEXPORT wxIcon;
-    friend class WXDLLEXPORT wxCursor;

 public:
 public:

-    wxBitmapRefData();
-    ~wxBitmapRefData();
+    // default ctor creates an invalid bitmap, you must Create() it later
+    wxBitmap() { Init(); }
+
+    // Copy constructors
+    inline wxBitmap(const wxBitmap& rBitmap)
+        : wxGDIImage(rBitmap)
+    {
+        Init();
+        SetHandle(rBitmap.GetHandle());
+    }
+
+    // Initialize with raw data
+    wxBitmap( const char bits[]
+             ,int        nWidth
+             ,int        nHeight
+             ,int        nDepth = 1
+            );
+
+    // Initialize with XPM data
+    wxBitmap(const char* const* bits);
+#ifdef wxNEEDS_CHARPP
+    // needed for old GCC
+    wxBitmap(char** data)
+    {
+        *this = wxBitmap(const_cast<const char* const*>(data));
+    }
+#endif

 
 

+    // Load a resource
+    wxBitmap( int             nId
+             ,wxBitmapType    lType = wxBITMAP_DEFAULT_TYPE
+            );
+
+    // For compatiability with other ports, under OS/2 does same as default ctor
+    inline wxBitmap( const wxString& WXUNUSED(rFilename)
+                    ,wxBitmapType    WXUNUSED(lType)
+                   )
+    { Init(); }
+    // New constructor for generalised creation from data
+    wxBitmap( const void* pData
+             ,wxBitmapType lType
+             ,int   nWidth
+             ,int   nHeight
+             ,int   nDepth = 1
+            );
+
+    // If depth is omitted, will create a bitmap compatible with the display
+    wxBitmap( int nWidth, int nHeight, int nDepth = -1 )
+    {
+        Init();
+        (void)Create(nWidth, nHeight, nDepth);
+    }
+    wxBitmap( const wxSize& sz, int nDepth = -1 )
+    {
+        Init();
+        (void)Create(sz, nDepth);
+    }
+
+    wxBitmap( const wxImage& image, int depth = -1 )
+                         { (void)CreateFromImage(image, depth); }
+
+    // we must have this, otherwise icons are silently copied into bitmaps using
+    // the copy ctor but the resulting bitmap is invalid!
+    inline wxBitmap(const wxIcon& rIcon)
+      { Init(); CopyFromIcon(rIcon); }
+
+    wxBitmap& operator=(const wxIcon& rIcon)
+    {
+        (void)CopyFromIcon(rIcon);
+
+        return(*this);
+    }
+
+    wxBitmap& operator=(const wxCursor& rCursor)
+    {
+        (void)CopyFromCursor(rCursor);
+        return (*this);
+    }
+
+    virtual ~wxBitmap();
+
+    wxImage ConvertToImage() const;
+    wxBitmap ConvertToDisabled(unsigned char brightness = 255) const;
+
+    // get the given part of bitmap
+    wxBitmap GetSubBitmap(const wxRect& rRect) const;
+
+    // copies the contents and mask of the given (colour) icon to the bitmap
+    bool CopyFromIcon(const wxIcon& rIcon);
+
+    // copies the contents and mask of the given cursor to the bitmap
+    bool CopyFromCursor(const wxCursor& rCursor);
+
+    virtual bool Create( int nWidth
+                        ,int nHeight
+                        ,int nDepth = wxBITMAP_SCREEN_DEPTH
+                       );
+    virtual bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH)
+        { return Create(sz.GetWidth(), sz.GetHeight(), depth); }
+
+    virtual bool Create( const void* pData
+                        ,wxBitmapType lType
+                        ,int   nWidth
+                        ,int   nHeight
+                        ,int   nDepth = 1
+                       );
+    virtual bool LoadFile( int             nId
+                          ,wxBitmapType    lType = wxBITMAP_DEFAULT_TYPE
+                         );
+    virtual bool LoadFile( const wxString& rName
+                          ,wxBitmapType    lType = wxBITMAP_DEFAULT_TYPE
+                         );
+    virtual bool SaveFile( const wxString&  rName
+                          ,wxBitmapType     lType
+                          ,const wxPalette* pCmap = NULL
+                         );
+
+    inline wxBitmapRefData* GetBitmapData() const
+      { return (wxBitmapRefData *)m_refData; }
+
+    // raw bitmap access support functions
+    void *GetRawData(wxPixelDataBase& data, int bpp);
+    void UngetRawData(wxPixelDataBase& data);
+
+    inline int GetQuality() const
+      { return (GetBitmapData() ? GetBitmapData()->m_nQuality : 0); }
+
+    void SetQuality(int nQ);
+
+    wxPalette* GetPalette() const
+      { return (GetBitmapData() ? (& GetBitmapData()->m_vBitmapPalette) : NULL); }
+
+    void       SetPalette(const wxPalette& rPalette);
+
+    inline wxMask* GetMask() const
+      { return (GetBitmapData() ? GetBitmapData()->m_pBitmapMask : NULL); }
+
+    void SetMask(wxMask* pMask) ;
+
+    // Implementation

 public:
 public:

-  int           m_width;
-  int           m_height;
-  int           m_depth;
-  bool          m_ok;
-  int           m_numColors;
-  wxPalette     m_bitmapPalette;
-  int           m_quality;
+    inline void SetHBITMAP(WXHBITMAP hBmp)
+      { SetHandle((WXHANDLE)hBmp); }

 
 

-/*  WXHBITMAP     m_hBitmap; TODO: platform-specific handle */
-  wxMask *      m_bitmapMask; // Optional mask
-};
+    inline WXHBITMAP GetHBITMAP() const
+      { return (WXHBITMAP)GetHandle(); }

 
 

-#define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
+    inline void  SetSelectedInto(wxDC* pDc)
+      { if (GetBitmapData()) GetBitmapData()->m_pSelectedInto = pDc; }
+
+    inline wxDC* GetSelectedInto() const
+      { return (GetBitmapData() ? GetBitmapData()->m_pSelectedInto : NULL); }
+
+    inline bool IsMono(void) const { return m_bIsMono; }
+
+    // An OS/2 version that probably doesn't do anything like the msw version
+    wxBitmap GetBitmapForDC(wxDC& rDc) const;

 
 

-class WXDLLEXPORT wxBitmapHandler: public wxObject
-{
-  DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
-public:
-  wxBitmapHandler() { m_name = ""; m_extension = ""; m_type = 0; };
-
-  virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
-  virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
-      int desiredWidth, int desiredHeight);
-  virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
-
-  inline void SetName(const wxString& name) { m_name = name; }
-  inline void SetExtension(const wxString& ext) { m_extension = ext; }
-  inline void SetType(long type) { m_type = type; }
-  inline wxString GetName() const { return m_name; }
-  inline wxString GetExtension() const { return m_extension; }
-  inline long GetType() const { return m_type; }

 protected:
 protected:

-  wxString  m_name;
-  wxString  m_extension;
-  long      m_type;
-};
+    // common part of all ctors
+    void Init();

 
 

-#define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
+    inline virtual wxGDIImageRefData* CreateData() const
+        { return new wxBitmapRefData; }

 
 

-class WXDLLEXPORT wxBitmap: public wxGDIObject
-{
-  DECLARE_DYNAMIC_CLASS(wxBitmap)
+    bool CreateFromImage(const wxImage& image, int depth);
+
+    virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
+
+private:
+    bool CopyFromIconOrCursor(const wxGDIImage& rIcon);

 
 

-  friend class WXDLLEXPORT wxBitmapHandler;
+    bool                            m_bIsMono;
+    DECLARE_DYNAMIC_CLASS(wxBitmap)
+}; // end of CLASS wxBitmap

 
 

+// ----------------------------------------------------------------------------
+// wxMask: a mono bitmap used for drawing bitmaps transparently.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxMask : public wxObject
+{

 public:
 public:

-  wxBitmap(); // Platform-specific
-
-  // Copy constructors
-  inline wxBitmap(const wxBitmap& bitmap)
-  { Ref(bitmap); if ( wxTheBitmapList ) wxTheBitmapList->AddBitmap(this); }
-
-  // Initialize with raw data.
-  wxBitmap(const char bits[], int width, int height, int depth = 1);
-
-/* TODO: maybe implement XPM reading
-  // Initialize with XPM data
-  wxBitmap(const char **data);
-*/
-
-  // Load a file or resource
-  // TODO: make default type whatever's appropriate for the platform.
-  wxBitmap(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
-
-  // Constructor for generalised creation from data
-  wxBitmap(void *data, long type, int width, int height, int depth = 1);
-
-  // If depth is omitted, will create a bitmap compatible with the display
-  wxBitmap(int width, int height, int depth = -1);
-  ~wxBitmap();
-
-  virtual bool Create(int width, int height, int depth = -1);
-  virtual bool Create(void *data, long type, int width, int height, int depth = 1);
-  virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
-  virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL);
-
-  inline bool Ok() const { return (M_BITMAPDATA && M_BITMAPDATA->m_ok); }
-  inline int GetWidth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_width : 0); }
-  inline int GetHeight() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_height : 0); }
-  inline int GetDepth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_depth : 0); }
-  inline int GetQuality() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_quality : 0); }
-  void SetWidth(int w);
-  void SetHeight(int h);
-  void SetDepth(int d);
-  void SetQuality(int q);
-  void SetOk(bool isOk);
-
-  inline wxPalette* GetPalette() const { return (M_BITMAPDATA ? (& M_BITMAPDATA->m_bitmapPalette) : (wxPalette*) NULL); }
-  void SetPalette(const wxPalette& palette);
-
-  inline wxMask *GetMask() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_bitmapMask : (wxMask*) NULL); }
-  void SetMask(wxMask *mask) ;
-
-  inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
-  inline bool operator == (const wxBitmap& bitmap) { return m_refData == bitmap.m_refData; }
-  inline bool operator != (const wxBitmap& bitmap) { return m_refData != bitmap.m_refData; }
-
-  // Format handling
-  static inline wxList& GetHandlers() { return sm_handlers; }
-  static void AddHandler(wxBitmapHandler *handler);
-  static void InsertHandler(wxBitmapHandler *handler);
-  static bool RemoveHandler(const wxString& name);
-  static wxBitmapHandler *FindHandler(const wxString& name);
-  static wxBitmapHandler *FindHandler(const wxString& extension, long bitmapType);
-  static wxBitmapHandler *FindHandler(long bitmapType);
-
-  static void InitStandardHandlers();
-  static void CleanUpHandlers();
+    wxMask();
+    wxMask( const wxMask& tocopy);
+
+    // Construct a mask from a bitmap and a colour indicating the transparent
+    // area
+    wxMask( const wxBitmap& rBitmap
+           ,const wxColour& rColour
+          );
+
+    // Construct a mask from a bitmap and a palette index indicating the
+    // transparent area
+    wxMask( const wxBitmap& rBitmap
+           ,int             nPaletteIndex
+          );
+
+    // Construct a mask from a mono bitmap (copies the bitmap).
+    wxMask(const wxBitmap& rBitmap);
+
+    // construct a mask from the givne bitmap handle
+    wxMask(WXHBITMAP hBmp)
+      { m_hMaskBitmap = hBmp; }
+
+    virtual ~wxMask();
+
+    bool Create( const wxBitmap& bitmap
+                ,const wxColour& rColour
+               );
+    bool Create( const wxBitmap& rBitmap
+                ,int             nPaletteIndex
+               );
+    bool Create(const wxBitmap& rBitmap);
+
+    // Implementation
+    WXHBITMAP GetMaskBitmap() const
+      { return m_hMaskBitmap; }
+    void SetMaskBitmap(WXHBITMAP hBmp)
+      { m_hMaskBitmap = hBmp; }
+

 protected:
 protected:

-  static wxList sm_handlers;
+    WXHBITMAP                       m_hMaskBitmap;
+    DECLARE_DYNAMIC_CLASS(wxMask)
+}; // end of CLASS wxMask

 
 

-/*
-  // TODO: Implementation
+// ----------------------------------------------------------------------------
+// wxBitmapHandler is a class which knows how to load/save bitmaps to/from file
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxBitmapHandler : public wxGDIImageHandler
+{

 public:
 public:

-  void SetHBITMAP(WXHBITMAP bmp);
-  inline WXHBITMAP GetHBITMAP() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_hBitmap : 0); }
-  bool FreeResource(bool force = FALSE);
-*/
+    inline wxBitmapHandler()
+      { m_lType = wxBITMAP_TYPE_INVALID; }
+
+    inline wxBitmapHandler( const wxString& rName
+                    ,const wxString& rExt
+                    ,wxBitmapType lType
+                   )
+                   : wxGDIImageHandler( rName
+                                       ,rExt
+                                       ,lType)
+    {
+    }
+
+    // keep wxBitmapHandler derived from wxGDIImageHandler compatible with the
+    // old class which worked only with bitmaps
+    virtual bool Create( wxBitmap* pBitmap
+                        ,const void* pData
+                        ,wxBitmapType lType
+                        ,int       nWidth
+                        ,int       nHeight
+                        ,int       nDepth = 1
+                       );
+    virtual bool LoadFile( wxBitmap*       pBitmap
+                          ,int             nId
+                          ,wxBitmapType    lType
+                          ,int             nDesiredWidth
+                          ,int             nDesiredHeight
+                         );
+    virtual bool LoadFile( wxBitmap*       pBitmap
+                          ,const wxString& rName
+                          ,wxBitmapType    lType
+                          ,int             nDesiredWidth
+                          ,int             nDesiredHeight
+                         );
+    virtual bool SaveFile( wxBitmap*        pBitmap
+                          ,const wxString&  rName
+                          ,wxBitmapType     lType
+                          ,const wxPalette* pPalette = NULL
+                         ) const;
+
+    virtual bool Create( wxGDIImage* pImage
+                        ,const void* pData
+                        ,wxBitmapType lFlags
+                        ,int         nWidth
+                        ,int         nHeight
+                        ,int         nDepth = 1
+                       );
+    virtual bool Load( wxGDIImage*     pImage
+                      ,int             nId
+                      ,wxBitmapType    lFlags
+                      ,int             nDesiredWidth
+                      ,int             nDesiredHeight
+                     );
+    virtual bool Save( const wxGDIImage* pImage
+                      ,const wxString&   rName
+                      ,wxBitmapType      lType
+                     ) const;
+private:
+    inline virtual bool Load( wxGDIImage*     WXUNUSED(pImage)
+                             ,const wxString& WXUNUSED(rName)
+                             ,WXHANDLE        WXUNUSED(hPs)
+                             ,wxBitmapType    WXUNUSED(lFlags)
+                             ,int             WXUNUSED(nDesiredWidth)
+                             ,int             WXUNUSED(nDesiredHeight)
+                            )
+    { return false; }
+    DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
+}; // end of CLASS wxBitmapHandler

 
 

-};

 #endif
   // _WX_BITMAP_H_
 #endif
   // _WX_BITMAP_H_