include/wx/mac/bitmap.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.h
   3 // Purpose:     wxBitmap class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_BITMAP_H_
  13 #define _WX_BITMAP_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16   #pragma interface "bitmap.h"
  17 #endif
  18
  19 #include "wx/palette.h"
  20
  21 // Bitmap
  22 class WXDLLEXPORT wxBitmap;
  23 class WXDLLEXPORT wxBitmapHandler;
  24 class WXDLLEXPORT wxControl;
  25 class WXDLLEXPORT wxCursor;
  26 class WXDLLEXPORT wxDC;
  27 class WXDLLEXPORT wxIcon;
  28 class WXDLLEXPORT wxImage;
  29 class WXDLLEXPORT wxPixelDataBase;
  30
  31 // A mask is a bitmap used for drawing bitmaps
  32 // it can be a monochrome bitmap or a multi-bit bitmap which transfers to alpha channels
  33 // transparently.
  34 class WXDLLEXPORT wxMask: public wxObject
  35 {
  36     DECLARE_DYNAMIC_CLASS(wxMask)
  37     DECLARE_NO_COPY_CLASS(wxMask)
  38
  39 public:
  40   wxMask();
  41
  42   // Construct a mask from a bitmap and a colour indicating
  43   // the transparent area
  44   wxMask(const wxBitmap& bitmap, const wxColour& colour);
  45
  46   // Construct a mask from a bitmap and a palette index indicating
  47   // the transparent area
  48   wxMask(const wxBitmap& bitmap, int paletteIndex);
  49
  50   // Construct a mask from a mono bitmap (copies the bitmap).
  51   wxMask(const wxBitmap& bitmap);
  52
  53   ~wxMask();
  54
  55   bool Create(const wxBitmap& bitmap, const wxColour& colour);
  56   bool Create(const wxBitmap& bitmap, int paletteIndex);
  57   bool Create(const wxBitmap& bitmap);
  58
  59   // Implementation
  60   bool PointMasked(int x, int y);
  61   inline WXHBITMAP GetMaskBitmap() const { return m_maskBitmap; }
  62   inline void SetMaskBitmap(WXHBITMAP bmp) { m_maskBitmap = bmp; }
  63   int GetDepth() const { return m_depth ; }
  64   void SetDepth( int depth ) { m_depth = depth ; }
  65 protected:
  66   WXHBITMAP m_maskBitmap;
  67   int m_depth ;
  68 };
  69
  70 enum { kMacBitmapTypeUnknownType , kMacBitmapTypeGrafWorld, kMacBitmapTypePict , kMacBitmapTypeIcon } ;
  71
  72 class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
  73 {
  74     DECLARE_NO_COPY_CLASS(wxBitmapRefData)
  75
  76     friend class WXDLLEXPORT wxBitmap;
  77     friend class WXDLLEXPORT wxIcon;
  78     friend class WXDLLEXPORT wxCursor;
  79 public:
  80     wxBitmapRefData();
  81     ~wxBitmapRefData();
  82
  83 public:
  84   int           m_width;
  85   int           m_height;
  86   int           m_depth;
  87   bool          m_ok;
  88   int           m_numColors;
  89   wxPalette     m_bitmapPalette;
  90   int           m_quality;
  91
  92   int            m_bitmapType ;
  93   WXHMETAFILE    m_hPict ;
  94   WXHBITMAP     m_hBitmap;
  95   WXHICON       m_hIcon ;
  96   wxMask *      m_bitmapMask; // Optional mask
  97   bool          m_hasAlpha;
  98 };
  99
 100 #define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
 101
 102 class WXDLLEXPORT wxBitmapHandler: public wxBitmapHandlerBase
 103 {
 104   DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
 105 public:
 106   wxBitmapHandler() : m_name(), m_extension(), m_type(0) { }
 107   virtual ~wxBitmapHandler();
 108
 109   virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 110   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 111       int desiredWidth, int desiredHeight);
 112   virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 113
 114   void SetName(const wxString& name) { m_name = name; }
 115   void SetExtension(const wxString& ext) { m_extension = ext; }
 116   void SetType(long type) { m_type = type; }
 117   wxString GetName() const { return m_name; }
 118   wxString GetExtension() const { return m_extension; }
 119   long GetType() const { return m_type; }
 120
 121 protected:
 122   wxString  m_name;
 123   wxString  m_extension;
 124   long      m_type;
 125 };
 126
 127 #define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
 128
 129 class WXDLLEXPORT wxBitmap: public wxBitmapBase
 130 {
 131   DECLARE_DYNAMIC_CLASS(wxBitmap)
 132
 133   friend class WXDLLEXPORT wxBitmapHandler;
 134
 135 public:
 136   wxBitmap(); // Platform-specific
 137
 138   // Copy constructors
 139   wxBitmap(const wxBitmap& bitmap)
 140       : wxBitmapBase()
 141   { Ref(bitmap); }
 142
 143   // Initialize with raw data.
 144   wxBitmap(const char bits[], int width, int height, int depth = 1);
 145
 146   // Initialize with XPM data
 147   bool CreateFromXpm(const char **bits);
 148   wxBitmap(const char **bits);
 149   wxBitmap(char **bits);
 150
 151   // Load a file or resource
 152   wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_PICT_RESOURCE);
 153
 154   // Constructor for generalised creation from data
 155   wxBitmap(void *data, wxBitmapType type, int width, int height, int depth = 1);
 156
 157   // If depth is omitted, will create a bitmap compatible with the display
 158   wxBitmap(int width, int height, int depth = -1);
 159
 160   // Convert from wxImage:
 161   wxBitmap(const wxImage& image, int depth = -1);
 162
 163   ~wxBitmap();
 164
 165   wxImage ConvertToImage() const;
 166
 167   // get the given part of bitmap
 168   wxBitmap GetSubBitmap( const wxRect& rect ) const;
 169
 170   virtual bool Create(int width, int height, int depth = -1);
 171   virtual bool Create(void *data, wxBitmapType type, int width, int height, int depth = 1);
 172   virtual bool LoadFile(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_BMP_RESOURCE);
 173   virtual bool SaveFile(const wxString& name, wxBitmapType type, const wxPalette *cmap = NULL) const;
 174
 175   // copies the contents and mask of the given (colour) icon to the bitmap
 176   virtual bool CopyFromIcon(const wxIcon& icon);
 177
 178   bool Ok() const;
 179   int GetWidth() const;
 180   int GetHeight() const;
 181   int GetDepth() const;
 182   int GetQuality() const;
 183   void SetWidth(int w);
 184   void SetHeight(int h);
 185   void SetDepth(int d);
 186   void SetQuality(int q);
 187   void SetOk(bool isOk);
 188
 189   wxPalette* GetPalette() const;
 190   void SetPalette(const wxPalette& palette);
 191
 192   wxMask *GetMask() const;
 193   void SetMask(wxMask *mask) ;
 194
 195   int GetBitmapType() const;
 196
 197   inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
 198   inline bool operator == (const wxBitmap& bitmap) const { return m_refData == bitmap.m_refData; }
 199   inline bool operator != (const wxBitmap& bitmap) const { return m_refData != bitmap.m_refData; }
 200
 201   static void InitStandardHandlers();
 202
 203     // raw bitmap access support functions, for internal use only
 204     void *GetRawData(wxPixelDataBase& data, int bpp);
 205     void UngetRawData(wxPixelDataBase& data);
 206
 207     void UseAlpha();
 208
 209 public:
 210   WXHBITMAP GetHBITMAP() const;
 211   inline WXHICON GetHICON() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_hIcon : 0); }
 212   WXHMETAFILE GetPict(bool *created = NULL ) const;
 213
 214   void SetHBITMAP(WXHBITMAP bmp);
 215   void SetHICON(WXHICON ico);
 216   void SetPict( WXHMETAFILE pict ) ;
 217
 218   bool FreeResource(bool force = FALSE);
 219 };
 220 #endif
 221   // _WX_BITMAP_H_