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 class WXDLLEXPORT wxImage;
  31
  32 // A mask is a mono bitmap used for drawing bitmaps
  33 // transparently.
  34 class WXDLLEXPORT wxMask: public wxObject
  35 {
  36     DECLARE_DYNAMIC_CLASS(wxMask)
  37
  38 public:
  39     wxMask();
  40
  41     // Construct a mask from a bitmap and a colour indicating
  42     // the transparent area
  43     wxMask(const wxBitmap& bitmap, const wxColour& colour);
  44
  45     // Construct a mask from a bitmap and a palette index indicating
  46     // the transparent area
  47     wxMask(const wxBitmap& bitmap, int paletteIndex);
  48
  49     // Construct a mask from a mono bitmap (copies the bitmap).
  50     wxMask(const wxBitmap& bitmap);
  51
  52     ~wxMask();
  53
  54     bool Create(const wxBitmap& bitmap, const wxColour& colour);
  55     bool Create(const wxBitmap& bitmap, int paletteIndex);
  56     bool Create(const wxBitmap& bitmap);
  57
  58     WXPixmap GetPixmap() const { return m_pixmap; }
  59     void SetPixmap(WXPixmap pixmap) { m_pixmap = pixmap; }
  60
  61 protected:
  62     WXPixmap      m_pixmap;
  63 };
  64
  65 class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
  66 {
  67     friend class WXDLLEXPORT wxBitmap;
  68     friend class WXDLLEXPORT wxIcon;
  69     friend class WXDLLEXPORT wxCursor;
  70 public:
  71     wxBitmapRefData();
  72     ~wxBitmapRefData();
  73
  74 public:
  75     int               m_width;
  76     int               m_height;
  77     int               m_depth;
  78     bool              m_ok;
  79     int               m_numColors;
  80     wxPalette         m_bitmapPalette;
  81     int               m_quality;
  82
  83     wxMask *          m_bitmapMask; // Optional mask
  84
  85     // Motif implementation
  86 public:
  87     WXPixmap          m_pixmap;
  88     WXDisplay*        m_display;
  89     bool              m_freePixmap;
  90     unsigned long*    m_freeColors;
  91     long              m_freeColorsCount;
  92
  93     // These 5 variables are for wxControl
  94     WXPixmap          m_insensPixmap ;
  95     WXPixmap          m_labelPixmap ;
  96     WXPixmap          m_armPixmap ;
  97     WXImage*          m_image ;
  98     WXImage*          m_insensImage ;
  99 };
 100
 101 #define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
 102
 103 class WXDLLEXPORT wxBitmapHandler: public wxBitmapHandlerBase
 104 {
 105 public:
 106     wxBitmapHandler() : wxBitmapHandlerBase() { }
 107
 108     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
 109                           int width, int height, int depth = 1)
 110     {
 111         return false;
 112     }
 113
 114     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
 115                           int desiredWidth, int desiredHeight)
 116     {
 117         return false;
 118     }
 119
 120     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
 121                           int type, const wxPalette *palette = NULL)
 122     {
 123         return false;
 124     }
 125 private:
 126     DECLARE_DYNAMIC_CLASS(wxBitmapHandler)
 127 };
 128
 129 #define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData())
 130
 131 class WXDLLEXPORT wxBitmap: public wxBitmapBase
 132 {
 133     DECLARE_DYNAMIC_CLASS(wxBitmap)
 134
 135         friend class WXDLLEXPORT wxBitmapHandler;
 136
 137 public:
 138     wxBitmap(); // Platform-specific
 139
 140     // Copy constructors
 141     wxBitmap(const wxBitmap& bitmap)
 142     { Ref(bitmap); }
 143
 144     // Initialize with raw XBM data
 145     wxBitmap(const char bits[], int width, int height, int depth = 1);
 146
 147     // from XPM
 148     wxBitmap(const char **data) { (void)CreateFromXpm(data); }
 149     wxBitmap(char **data) { (void)CreateFromXpm((const char **)data); }
 150
 151     // Initialize with XPM data -- deprecated
 152     wxBitmap(char **data, wxControl* control);
 153
 154     // Load a file or resource
 155     wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_XPM);
 156
 157     // Constructor for generalised creation from data
 158     wxBitmap(void *data, wxBitmapType type,
 159              int width, int height, int depth = 1);
 160
 161     // If depth is omitted, will create a bitmap compatible with the display
 162     wxBitmap(int width, int height, int depth = -1);
 163
 164     // Convert from wxImage:
 165     wxBitmap(const wxImage& image, int depth = -1) { (void)CreateFromImage(image, depth); }
 166
 167     ~wxBitmap();
 168
 169     virtual bool Create(int width, int height, int depth = -1);
 170     virtual bool Create(void *data, wxBitmapType type,
 171                         int width, int height, int depth = 1);
 172
 173     wxBitmap GetSubBitmap( const wxRect& rect ) const;
 174
 175     virtual bool LoadFile(const wxString& name,
 176                           wxBitmapType type = wxBITMAP_TYPE_XPM);
 177     virtual bool SaveFile(const wxString& name, wxBitmapType type,
 178                           const wxPalette *cmap = NULL) const;
 179
 180     wxImage ConvertToImage() const;
 181
 182     // copies the contents and mask of the given (colour) icon to the bitmap
 183     virtual bool CopyFromIcon(const wxIcon& icon);
 184
 185     bool Ok() const { return (M_BITMAPDATA && M_BITMAPDATA->m_ok); }
 186     int GetWidth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_width : 0); }
 187     int GetHeight() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_height : 0); }
 188     int GetDepth() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_depth : 0); }
 189     int GetQuality() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_quality : 0); }
 190     void SetWidth(int w);
 191     void SetHeight(int h);
 192     void SetDepth(int d);
 193     void SetQuality(int q);
 194     void SetOk(bool isOk);
 195
 196     wxPalette* GetPalette() const { return (M_BITMAPDATA ? (& M_BITMAPDATA->m_bitmapPalette) : (wxPalette*) NULL); }
 197     void SetPalette(const wxPalette& palette);
 198
 199     wxMask *GetMask() const { return (M_BITMAPDATA ? M_BITMAPDATA->m_bitmapMask : (wxMask*) NULL); }
 200     void SetMask(wxMask *mask) ;
 201
 202     wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
 203     bool operator == (const wxBitmap& bitmap) const { return m_refData == bitmap.m_refData; }
 204     bool operator != (const wxBitmap& bitmap) const { return m_refData != bitmap.m_refData; }
 205
 206     // Format handling
 207     static void InitStandardHandlers();
 208
 209     // Motif implementation
 210 public:
 211     WXDisplay* GetDisplay() const { return M_BITMAPDATA->m_display; }
 212     WXPixmap GetPixmap() const { return (WXPixmap) M_BITMAPDATA->m_pixmap; }
 213     virtual WXPixmap GetLabelPixmap(WXWidget w) ;
 214     virtual WXPixmap GetArmPixmap(WXWidget w) ;
 215     virtual WXPixmap GetInsensPixmap(WXWidget w = (WXWidget) 0) ;
 216     void SetPixmapNull() { M_BITMAPDATA->m_pixmap = 0; }
 217
 218 protected:
 219     bool CreateFromXpm(const char **bits);
 220     bool CreateFromImage(const wxImage& image, int depth);
 221 };
 222
 223 // Creates a bitmap with transparent areas drawn in
 224 // the given colour.
 225 wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, wxColour& colour);
 226
 227 #endif
 228 // _WX_BITMAP_H_