include/wx/os2/bitmap.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.h
   3 // Purpose:     wxBitmap class
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_BITMAP_H_
  13 #define _WX_BITMAP_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "bitmap.h"
  17 #endif
  18
  19 #include "wx/gdiobj.h"
  20 #include "wx/gdicmn.h"
  21 #include "wx/palette.h"
  22
  23 // Bitmap
  24 class WXDLLEXPORT wxDC;
  25 class WXDLLEXPORT wxControl;
  26 class WXDLLEXPORT wxBitmap;
  27 class WXDLLEXPORT wxBitmapHandler;
  28 class WXDLLEXPORT wxIcon;
  29 class WXDLLEXPORT wxCursor;
  30
  31 // A mask is a mono bitmap used for drawing bitmaps
  32 // transparently.
  33 class WXDLLEXPORT wxMask: public wxObject
  34 {
  35   DECLARE_DYNAMIC_CLASS(wxMask)
  36
  37 public:
  38   wxMask();
  39
  40   // Construct a mask from a bitmap and a colour indicating
  41   // the transparent area
  42   wxMask(const wxBitmap& bitmap, const wxColour& colour);
  43
  44   // Construct a mask from a bitmap and a palette index indicating
  45   // the transparent area
  46   wxMask(const wxBitmap& bitmap, int paletteIndex);
  47
  48   // Construct a mask from a mono bitmap (copies the bitmap).
  49   wxMask(const wxBitmap& bitmap);
  50
  51   ~wxMask();
  52
  53   bool Create(const wxBitmap& bitmap, const wxColour& colour);
  54   bool Create(const wxBitmap& bitmap, int paletteIndex);
  55   bool Create(const wxBitmap& bitmap);
  56
  57 /* TODO: platform-specific data access
  58   // Implementation
  59   inline WXHBITMAP GetMaskBitmap() const { return m_maskBitmap; }
  60   inline void SetMaskBitmap(WXHBITMAP bmp) { m_maskBitmap = bmp; }
  61 protected:
  62   WXHBITMAP m_maskBitmap;
  63 */
  64 };
  65
  66 class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
  67 {
  68     friend class WXDLLEXPORT wxBitmap;
  69     friend class WXDLLEXPORT wxIcon;
  70     friend class WXDLLEXPORT wxCursor;
  71 public:
  72     wxBitmapRefData();
  73     ~wxBitmapRefData();
  74
  75 public:
  76   int           m_width;
  77   int           m_height;
  78   int           m_depth;
  79   bool          m_ok;
  80   int           m_numColors;
  81   wxPalette     m_bitmapPalette;
  82   int           m_quality;
  83
  84   WXHBITMAP     m_hBitmap;
  85   wxDC *        m_selectedInto; // So bitmap knows whether it's been selected into
  86
  87   wxMask *      m_bitmapMask; // Optional mask
  88 };
  89
  90 #define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
  91
  92 class WXDLLEXPORT wxBitmapHandler: public wxObject
  93 {
  94   DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
  95 public:
  96   wxBitmapHandler() { m_name = ""; m_extension = ""; m_type = 0; };
  97
  98   virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
  99   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 100       int desiredWidth, int desiredHeight);
 101   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 102
 103   inline void SetName(const wxString& name) { m_name = name; }
 104   inline void SetExtension(const wxString& ext) { m_extension = ext; }
 105   inline void SetType(long type) { m_type = type; }
 106   inline wxString GetName() const { return m_name; }
 107   inline wxString GetExtension() const { return m_extension; }
 108   inline long GetType() const { return m_type; }
 109 protected:
 110   wxString  m_name;
 111   wxString  m_extension;
 112   long      m_type;
 113 };
 114
 115 #define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
 116
 117 class WXDLLEXPORT wxBitmap: public wxGDIObject
 118 {
 119   DECLARE_DYNAMIC_CLASS(wxBitmap)
 120
 121   friend class WXDLLEXPORT wxBitmapHandler;
 122
 123 public:
 124   wxBitmap(); // Platform-specific
 125
 126   // Copy constructors
 127   inline wxBitmap(const wxBitmap& bitmap)
 128   { Ref(bitmap); if ( wxTheBitmapList ) wxTheBitmapList->AddBitmap(this); }
 129
 130   // Initialize with raw data.
 131   wxBitmap(const char bits[], int width, int height, int depth = 1);
 132
 133 /* TODO: maybe implement XPM reading
 134   // Initialize with XPM data
 135   wxBitmap(const char **data);
 136 */
 137
 138   // Load a file or resource
 139   // TODO: make default type whatever's appropriate for the platform.
 140   wxBitmap(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
 141
 142   // Constructor for generalised creation from data
 143   wxBitmap(void *data, long type, int width, int height, int depth = 1);
 144
 145   // If depth is omitted, will create a bitmap compatible with the display
 146   wxBitmap(int width, int height, int depth = -1);
 147   ~wxBitmap();
 148
 149   virtual bool Create(int width, int height, int depth = -1);
 150   virtual bool Create(void *data, long type, int width, int height, int depth = 1);
 151   virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
 152   virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL);
 153
 154   inline bool Ok() const { return (M_BITMAPDATA && M_BITMAPDATA->m_ok); }
 155   inline int GetWidth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_width : 0); }
 156   inline int GetHeight() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_height : 0); }
 157   inline int GetDepth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_depth : 0); }
 158   inline int GetQuality() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_quality : 0); }
 159   void SetWidth(int w);
 160   void SetHeight(int h);
 161   void SetDepth(int d);
 162   void SetQuality(int q);
 163   void SetOk(bool isOk);
 164
 165   inline wxPalette* GetPalette() const { return (M_BITMAPDATA ? (& M_BITMAPDATA->m_bitmapPalette) : (wxPalette*) NULL); }
 166   void SetPalette(const wxPalette& palette);
 167
 168   inline wxMask *GetMask() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_bitmapMask : (wxMask*) NULL); }
 169   void SetMask(wxMask *mask) ;
 170
 171   inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
 172   inline bool operator == (const wxBitmap& bitmap) { return m_refData == bitmap.m_refData; }
 173   inline bool operator != (const wxBitmap& bitmap) { return m_refData != bitmap.m_refData; }
 174
 175   // Format handling
 176   static inline wxList& GetHandlers() { return sm_handlers; }
 177   static void AddHandler(wxBitmapHandler *handler);
 178   static void InsertHandler(wxBitmapHandler *handler);
 179   static bool RemoveHandler(const wxString& name);
 180   static wxBitmapHandler *FindHandler(const wxString& name);
 181   static wxBitmapHandler *FindHandler(const wxString& extension, long bitmapType);
 182   static wxBitmapHandler *FindHandler(long bitmapType);
 183
 184   static void InitStandardHandlers();
 185   static void CleanUpHandlers();
 186 protected:
 187   static wxList sm_handlers;
 188
 189   // TODO: Implementation
 190 public:
 191   void SetHBITMAP(WXHBITMAP bmp);
 192   inline WXHBITMAP GetHBITMAP() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_hBitmap : 0); }
 193   inline void SetSelectedInto(wxDC *dc) { if (M_BITMAPDATA) M_BITMAPDATA->m_selectedInto = dc; }
 194   inline wxDC *GetSelectedInto(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_selectedInto : (wxDC*) NULL); }
 195 //  bool FreeResource(bool force = FALSE);
 196 };
 197 #endif
 198   // _WX_BITMAP_H_