include/wx/bitmap.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/bitmap.h
   3 // Purpose:     wxBitmap class interface
   4 // Author:      Vaclav Slavik
   5 // Modified by:
   6 // Created:     22.04.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_BITMAP_H_BASE_
  13 #define _WX_BITMAP_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma interface "bitmapbase.h"
  21 #endif
  22
  23 #include "wx/defs.h"
  24 #include "wx/object.h"
  25 #include "wx/string.h"
  26 #include "wx/gdiobj.h"
  27 #include "wx/gdicmn.h"  // for wxBitmapType
  28
  29 class WXDLLEXPORT wxBitmap;
  30 class WXDLLEXPORT wxBitmapHandler;
  31 class WXDLLEXPORT wxImage;
  32 class WXDLLEXPORT wxMask;
  33 class WXDLLEXPORT wxPalette;
  34
  35 // ----------------------------------------------------------------------------
  36 // wxBitmapHandler: class which knows how to create/load/save bitmaps in
  37 // different formats
  38 // ----------------------------------------------------------------------------
  39
  40 class WXDLLEXPORT wxBitmapHandlerBase : public wxObject
  41 {
  42 public:
  43     wxBitmapHandlerBase()
  44     {
  45         m_type = wxBITMAP_TYPE_INVALID;
  46     }
  47
  48     virtual ~wxBitmapHandlerBase() { }
  49
  50     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
  51                           int width, int height, int depth = 1) = 0;
  52     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
  53                           int desiredWidth, int desiredHeight) = 0;
  54     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
  55                           int type, const wxPalette *palette = NULL) = 0;
  56
  57     void SetName(const wxString& name) { m_name = name; }
  58     void SetExtension(const wxString& ext) { m_extension = ext; }
  59     void SetType(wxBitmapType type) { m_type = type; }
  60     wxString GetName() const { return m_name; }
  61     wxString GetExtension() const { return m_extension; }
  62     wxBitmapType GetType() const { return m_type; }
  63
  64 protected:
  65     wxString      m_name;
  66     wxString      m_extension;
  67     wxBitmapType  m_type;
  68
  69     DECLARE_ABSTRACT_CLASS(wxBitmapHandlerBase)
  70 };
  71
  72
  73
  74 class WXDLLEXPORT wxBitmapBase : public wxGDIObject
  75 {
  76 public:
  77     wxBitmapBase() : wxGDIObject() {}
  78     virtual ~wxBitmapBase() {}
  79
  80     /*
  81     Derived class must implement these:
  82
  83     wxBitmap();
  84     wxBitmap(int width, int height, int depth = -1);
  85     wxBitmap(const char bits[], int width, int height, int depth = 1);
  86     wxBitmap(const char **bits);
  87     wxBitmap(char **bits);
  88     wxBitmap(const wxBitmap& bmp);
  89     wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM);
  90     wxBitmap(const wxImage& image, int depth = -1);
  91     wxBitmap& operator = (const wxBitmap& bmp);
  92     bool operator == (const wxBitmap& bmp) const;
  93     bool operator != (const wxBitmap& bmp) const;
  94
  95     bool Create(int width, int height, int depth = -1);
  96
  97     static void InitStandardHandlers();
  98     */
  99
 100     virtual bool Ok() const = 0;
 101
 102     virtual int GetHeight() const = 0;
 103     virtual int GetWidth() const = 0;
 104     virtual int GetDepth() const = 0;
 105
 106     virtual wxImage ConvertToImage() const = 0;
 107
 108     virtual wxMask *GetMask() const = 0;
 109     virtual void SetMask(wxMask *mask) = 0;
 110
 111     virtual wxBitmap GetSubBitmap(const wxRect& rect) const = 0;
 112
 113     virtual bool SaveFile(const wxString &name, wxBitmapType type,
 114                           const wxPalette *palette = (wxPalette *)NULL) const = 0;
 115     virtual bool LoadFile(const wxString &name, wxBitmapType type) = 0;
 116
 117     virtual wxPalette *GetPalette() const = 0;
 118     virtual void SetPalette(const wxPalette& palette) = 0;
 119
 120 #if WXWIN_COMPATIBILITY
 121     wxPalette *GetColourMap() const { return GetPalette(); }
 122     void SetColourMap(wxPalette *cmap) { SetPalette(*cmap); };
 123 #endif // WXWIN_COMPATIBILITY
 124
 125     // copies the contents and mask of the given (colour) icon to the bitmap
 126     virtual bool CopyFromIcon(const wxIcon& icon) = 0;
 127
 128     // implementation:
 129     virtual void SetHeight(int height) = 0;
 130     virtual void SetWidth(int width) = 0;
 131     virtual void SetDepth(int depth) = 0;
 132
 133     // Format handling
 134     static inline wxList& GetHandlers() { return sm_handlers; }
 135     static void AddHandler(wxBitmapHandlerBase *handler);
 136     static void InsertHandler(wxBitmapHandlerBase *handler);
 137     static bool RemoveHandler(const wxString& name);
 138     static wxBitmapHandler *FindHandler(const wxString& name);
 139     static wxBitmapHandler *FindHandler(const wxString& extension, wxBitmapType bitmapType);
 140     static wxBitmapHandler *FindHandler(wxBitmapType bitmapType);
 141
 142     //static void InitStandardHandlers();
 143     //  (wxBitmap must implement this one)
 144
 145     static void CleanUpHandlers();
 146
 147 protected:
 148     static wxList sm_handlers;
 149
 150     DECLARE_ABSTRACT_CLASS(wxBitmapBase)
 151 };
 152
 153
 154
 155 #if defined(__WXMSW__)
 156 #include "wx/msw/bitmap.h"
 157 #elif defined(__WXMOTIF__)
 158 #include "wx/motif/bitmap.h"
 159 #elif defined(__WXGTK__)
 160 #include "wx/gtk/bitmap.h"
 161 #elif defined(__WXMGL__)
 162 #include "wx/mgl/bitmap.h"
 163 #elif defined(__WXQT__)
 164 #include "wx/qt/bitmap.h"
 165 #elif defined(__WXMAC__)
 166 #include "wx/mac/bitmap.h"
 167 #elif defined(__WXPM__)
 168 #include "wx/os2/bitmap.h"
 169 #elif defined(__WXSTUBS__)
 170 #include "wx/stubs/bitmap.h"
 171 #endif
 172
 173 #endif
 174     // _WX_BITMAP_H_BASE_