include/wx/gtk/bitmap.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/bitmap.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_GTK_BITMAP_H_
  11 #define _WX_GTK_BITMAP_H_
  12
  13 typedef struct _GdkPixbuf GdkPixbuf;
  14 class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
  15
  16 //-----------------------------------------------------------------------------
  17 // wxMask
  18 //-----------------------------------------------------------------------------
  19
  20 class WXDLLIMPEXP_CORE wxMask: public wxMaskBase
  21 {
  22 public:
  23     wxMask();
  24     wxMask(const wxMask& mask);
  25     wxMask( const wxBitmap& bitmap, const wxColour& colour );
  26 #if wxUSE_PALETTE
  27     wxMask( const wxBitmap& bitmap, int paletteIndex );
  28 #endif // wxUSE_PALETTE
  29     wxMask( const wxBitmap& bitmap );
  30     virtual ~wxMask();
  31
  32     // implementation
  33     GdkBitmap   *m_bitmap;
  34     GdkBitmap *GetBitmap() const;
  35
  36 protected:
  37     virtual void FreeData();
  38     virtual bool InitFromColour(const wxBitmap& bitmap, const wxColour& colour);
  39     virtual bool InitFromMonoBitmap(const wxBitmap& bitmap);
  40
  41     DECLARE_DYNAMIC_CLASS(wxMask)
  42 };
  43
  44 //-----------------------------------------------------------------------------
  45 // wxBitmap
  46 //-----------------------------------------------------------------------------
  47
  48 class WXDLLIMPEXP_CORE wxBitmap: public wxBitmapBase
  49 {
  50 public:
  51     wxBitmap() { }
  52     wxBitmap( int width, int height, int depth = wxBITMAP_SCREEN_DEPTH )
  53         { Create(width, height, depth); }
  54     wxBitmap( const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH )
  55         { Create(sz, depth); }
  56     wxBitmap( const char bits[], int width, int height, int depth = 1 );
  57     wxBitmap( const char* const* bits );
  58 #ifdef wxNEEDS_CHARPP
  59     // needed for old GCC
  60     wxBitmap(char** data)
  61         { *this = wxBitmap(const_cast<const char* const*>(data)); }
  62 #endif
  63     wxBitmap( const wxString &filename, wxBitmapType type = wxBITMAP_DEFAULT_TYPE );
  64 #if wxUSE_IMAGE
  65     wxBitmap( const wxImage& image, int depth = wxBITMAP_SCREEN_DEPTH )
  66         { (void)CreateFromImage(image, depth); }
  67 #endif // wxUSE_IMAGE
  68     virtual ~wxBitmap();
  69
  70     bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
  71     bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH)
  72         { return Create(sz.GetWidth(), sz.GetHeight(), depth); }
  73
  74     virtual int GetHeight() const;
  75     virtual int GetWidth() const;
  76     virtual int GetDepth() const;
  77
  78 #if wxUSE_IMAGE
  79     wxImage ConvertToImage() const;
  80 #endif // wxUSE_IMAGE
  81
  82     // copies the contents and mask of the given (colour) icon to the bitmap
  83     virtual bool CopyFromIcon(const wxIcon& icon);
  84
  85     wxMask *GetMask() const;
  86     void SetMask( wxMask *mask );
  87
  88     wxBitmap GetSubBitmap( const wxRect& rect ) const;
  89
  90     bool SaveFile(const wxString &name, wxBitmapType type,
  91                           const wxPalette *palette = NULL) const;
  92     bool LoadFile(const wxString &name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);
  93
  94 #if wxUSE_PALETTE
  95     wxPalette *GetPalette() const;
  96     void SetPalette(const wxPalette& palette);
  97     wxPalette *GetColourMap() const { return GetPalette(); };
  98 #endif // wxUSE_PALETTE
  99
 100     static void InitStandardHandlers();
 101
 102     // implementation
 103     // --------------
 104
 105     void SetHeight( int height );
 106     void SetWidth( int width );
 107     void SetDepth( int depth );
 108     void SetPixbuf(GdkPixbuf* pixbuf);
 109
 110     GdkPixmap *GetPixmap() const;
 111     bool HasPixmap() const;
 112     bool HasPixbuf() const;
 113     GdkPixbuf *GetPixbuf() const;
 114
 115     // raw bitmap access support functions
 116     void *GetRawData(wxPixelDataBase& data, int bpp);
 117     void UngetRawData(wxPixelDataBase& data);
 118
 119     bool HasAlpha() const;
 120
 121 protected:
 122 #if wxUSE_IMAGE
 123     bool CreateFromImage(const wxImage& image, int depth);
 124 #endif // wxUSE_IMAGE
 125
 126     virtual wxGDIRefData* CreateGDIRefData() const;
 127     virtual wxGDIRefData* CloneGDIRefData(const wxGDIRefData* data) const;
 128
 129 private:
 130     void SetPixmap(GdkPixmap* pixmap);
 131 #if wxUSE_IMAGE
 132     // to be called from CreateFromImage only!
 133     bool CreateFromImageAsPixmap(const wxImage& image, int depth);
 134     bool CreateFromImageAsPixbuf(const wxImage& image);
 135 #endif // wxUSE_IMAGE
 136
 137 public:
 138     // implementation only
 139     enum Representation
 140     {
 141         Pixmap,
 142         Pixbuf
 143     };
 144     // removes other representations from memory, keeping only 'keep'
 145     // (wxBitmap may keep same bitmap e.g. as both pixmap and pixbuf):
 146     void PurgeOtherRepresentations(Representation keep);
 147
 148     DECLARE_DYNAMIC_CLASS(wxBitmap)
 149 };
 150
 151 #endif // _WX_GTK_BITMAP_H_