include/wx/motif/bitmap.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.h
   3 // Purpose:     wxBitmap class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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   inline WXPixmap GetPixmap() const { return m_pixmap; }
  58   inline void SetPixmap(WXPixmap pixmap) { m_pixmap = pixmap; }
  59
  60 protected:
  61   WXPixmap      m_pixmap;
  62 };
  63
  64 class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
  65 {
  66     friend class WXDLLEXPORT wxBitmap;
  67     friend class WXDLLEXPORT wxIcon;
  68     friend class WXDLLEXPORT wxCursor;
  69 public:
  70     wxBitmapRefData();
  71     ~wxBitmapRefData();
  72
  73 public:
  74   int               m_width;
  75   int               m_height;
  76   int               m_depth;
  77   bool              m_ok;
  78   int               m_numColors;
  79   wxPalette         m_bitmapPalette;
  80   int               m_quality;
  81
  82   wxMask *          m_bitmapMask; // Optional mask
  83
  84   // Motif implementation
  85 public:
  86   WXPixmap          m_pixmap;
  87   WXDisplay*        m_display;
  88   bool              m_freePixmap;
  89   unsigned long*    m_freeColors;
  90   long              m_freeColorsCount;
  91
  92   // These 5 variables are for wxControl
  93   WXPixmap          m_insensPixmap ;
  94   WXPixmap          m_labelPixmap ;
  95   WXPixmap          m_armPixmap ;
  96   WXImage*          m_image ;
  97   WXImage*          m_insensImage ;
  98 };
  99
 100 #define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
 101
 102 class WXDLLEXPORT wxBitmapHandler: public wxObject
 103 {
 104   DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
 105 public:
 106   wxBitmapHandler() { m_name = ""; m_extension = ""; m_type = 0; };
 107
 108   virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
 109   virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 110       int desiredWidth, int desiredHeight);
 111   virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
 112
 113   inline void SetName(const wxString& name) { m_name = name; }
 114   inline void SetExtension(const wxString& ext) { m_extension = ext; }
 115   inline void SetType(long type) { m_type = type; }
 116   inline wxString GetName() const { return m_name; }
 117   inline wxString GetExtension() const { return m_extension; }
 118   inline long GetType() const { return m_type; }
 119 protected:
 120   wxString  m_name;
 121   wxString  m_extension;
 122   long      m_type;
 123 };
 124
 125 #define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
 126
 127 class WXDLLEXPORT wxBitmap: public wxGDIObject
 128 {
 129   DECLARE_DYNAMIC_CLASS(wxBitmap)
 130
 131   friend class WXDLLEXPORT wxBitmapHandler;
 132
 133 public:
 134   wxBitmap(); // Platform-specific
 135
 136   // Copy constructors
 137   inline wxBitmap(const wxBitmap& bitmap)
 138   { Ref(bitmap); if ( wxTheBitmapList ) wxTheBitmapList->AddBitmap(this); }
 139
 140   // Initialize with raw XBM data
 141   wxBitmap(const char bits[], int width, int height, int depth = 1);
 142
 143   // Initialize with XPM data
 144   wxBitmap(char **data, wxControl* control = NULL);
 145
 146   // Load a file or resource
 147   wxBitmap(const wxString& name, long type = wxBITMAP_TYPE_XBM);
 148
 149   // Constructor for generalised creation from data
 150   wxBitmap(void *data, long type, int width, int height, int depth = 1);
 151
 152   // If depth is omitted, will create a bitmap compatible with the display
 153   wxBitmap(int width, int height, int depth = -1);
 154   ~wxBitmap();
 155
 156   virtual bool Create(int width, int height, int depth = -1);
 157   virtual bool Create(void *data, long type, int width, int height, int depth = 1);
 158   virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_XBM);
 159   virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL);
 160
 161   inline bool Ok() const { return (M_BITMAPDATA && M_BITMAPDATA->m_ok); }
 162   inline int GetWidth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_width : 0); }
 163   inline int GetHeight() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_height : 0); }
 164   inline int GetDepth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_depth : 0); }
 165   inline int GetQuality() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_quality : 0); }
 166   void SetWidth(int w);
 167   void SetHeight(int h);
 168   void SetDepth(int d);
 169   void SetQuality(int q);
 170   void SetOk(bool isOk);
 171
 172   inline wxPalette* GetPalette() const { return (M_BITMAPDATA ? (& M_BITMAPDATA->m_bitmapPalette) : (wxPalette*) NULL); }
 173   void SetPalette(const wxPalette& palette);
 174
 175   inline wxMask *GetMask() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_bitmapMask : (wxMask*) NULL); }
 176   void SetMask(wxMask *mask) ;
 177
 178   inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
 179   inline bool operator == (const wxBitmap& bitmap) { return m_refData == bitmap.m_refData; }
 180   inline bool operator != (const wxBitmap& bitmap) { return m_refData != bitmap.m_refData; }
 181
 182   // Format handling
 183   static inline wxList& GetHandlers() { return sm_handlers; }
 184   static void AddHandler(wxBitmapHandler *handler);
 185   static void InsertHandler(wxBitmapHandler *handler);
 186   static bool RemoveHandler(const wxString& name);
 187   static wxBitmapHandler *FindHandler(const wxString& name);
 188   static wxBitmapHandler *FindHandler(const wxString& extension, long bitmapType);
 189   static wxBitmapHandler *FindHandler(long bitmapType);
 190
 191   static void InitStandardHandlers();
 192   static void CleanUpHandlers();
 193
 194   // Motif implementation
 195 public:
 196   inline WXDisplay* GetDisplay() const { return M_BITMAPDATA->m_display; }
 197   inline WXDisplay* GetPixmap() const { return M_BITMAPDATA->m_pixmap; }
 198   virtual WXPixmap GetLabelPixmap(WXWidget w) ;
 199   virtual WXPixmap GetArmPixmap(WXWidget w) ;
 200   virtual WXPixmap GetInsensPixmap(WXWidget w = (WXWidget) 0) ;
 201
 202 protected:
 203   static wxList sm_handlers;
 204 };
 205
 206 // Creates a bitmap with transparent areas drawn in
 207 // the given colour.
 208 wxBitmap wxCreateMaskedBitmap(wxBitmap& bitmap, wxColour& colour);
 209
 210 #endif
 211   // _WX_BITMAP_H_