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 #if defined(__WXMGL__) || defined(__WXMAC__)
  36 // Only used by some ports
  37 // FIXME -- make all ports (but MSW which uses wxGDIImage) use these base classes
  38
  39 // ----------------------------------------------------------------------------
  40 // wxBitmapHandler: class which knows how to create/load/save bitmaps in
  41 // different formats
  42 // ----------------------------------------------------------------------------
  43
  44 class WXDLLEXPORT wxBitmapHandlerBase : public wxObject
  45 {
  46 public:
  47     wxBitmapHandlerBase()
  48     {
  49         m_type = wxBITMAP_TYPE_INVALID;
  50     }
  51
  52     virtual ~wxBitmapHandlerBase() { }
  53
  54     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
  55                           int width, int height, int depth = 1) = 0;
  56     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
  57                           int desiredWidth, int desiredHeight) = 0;
  58     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
  59                           int type, const wxPalette *palette = NULL) = 0;
  60
  61     void SetName(const wxString& name) { m_name = name; }
  62     void SetExtension(const wxString& ext) { m_extension = ext; }
  63     void SetType(wxBitmapType type) { m_type = type; }
  64     wxString GetName() const { return m_name; }
  65     wxString GetExtension() const { return m_extension; }
  66     wxBitmapType GetType() const { return m_type; }
  67
  68 protected:
  69     wxString      m_name;
  70     wxString      m_extension;
  71     wxBitmapType  m_type;
  72
  73     DECLARE_ABSTRACT_CLASS(wxBitmapHandlerBase)
  74 };
  75
  76 class WXDLLEXPORT wxBitmapBase : public wxGDIObject
  77 {
  78 public:
  79     wxBitmapBase() : wxGDIObject() {}
  80     virtual ~wxBitmapBase() {}
  81
  82     /*
  83     Derived class must implement these:
  84
  85     wxBitmap();
  86     wxBitmap(int width, int height, int depth = -1);
  87     wxBitmap(const char bits[], int width, int height, int depth = 1);
  88     wxBitmap(const char **bits);
  89     wxBitmap(char **bits);
  90     wxBitmap(const wxBitmap& bmp);
  91     wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM);
  92     wxBitmap(const wxImage& image, int depth = -1);
  93     wxBitmap& operator = (const wxBitmap& bmp);
  94     bool operator == (const wxBitmap& bmp) const;
  95     bool operator != (const wxBitmap& bmp) const;
  96
  97     bool Create(int width, int height, int depth = -1);
  98
  99     static void InitStandardHandlers();
 100     */
 101
 102     virtual bool Ok() const = 0;
 103
 104     virtual int GetHeight() const = 0;
 105     virtual int GetWidth() const = 0;
 106     virtual int GetDepth() const = 0;
 107
 108     virtual wxImage ConvertToImage() const = 0;
 109
 110     virtual wxMask *GetMask() const = 0;
 111     virtual void SetMask(wxMask *mask) = 0;
 112
 113     virtual wxBitmap GetSubBitmap(const wxRect& rect) const = 0;
 114
 115     virtual bool SaveFile(const wxString &name, wxBitmapType type,
 116                           const wxPalette *palette = (wxPalette *)NULL) const = 0;
 117     virtual bool LoadFile(const wxString &name, wxBitmapType type) = 0;
 118
 119     virtual wxPalette *GetPalette() const = 0;
 120     virtual void SetPalette(const wxPalette& palette) = 0;
 121
 122 #if WXWIN_COMPATIBILITY
 123     wxPalette *GetColourMap() const { return GetPalette(); }
 124     void SetColourMap(wxPalette *cmap) { SetPalette(*cmap); };
 125 #endif // WXWIN_COMPATIBILITY
 126
 127     // copies the contents and mask of the given (colour) icon to the bitmap
 128     virtual bool CopyFromIcon(const wxIcon& icon) = 0;
 129
 130     // implementation:
 131     virtual void SetHeight(int height) = 0;
 132     virtual void SetWidth(int width) = 0;
 133     virtual void SetDepth(int depth) = 0;
 134
 135     // Format handling
 136     static inline wxList& GetHandlers() { return sm_handlers; }
 137     static void AddHandler(wxBitmapHandlerBase *handler);
 138     static void InsertHandler(wxBitmapHandlerBase *handler);
 139     static bool RemoveHandler(const wxString& name);
 140     static wxBitmapHandler *FindHandler(const wxString& name);
 141     static wxBitmapHandler *FindHandler(const wxString& extension, wxBitmapType bitmapType);
 142     static wxBitmapHandler *FindHandler(wxBitmapType bitmapType);
 143
 144     //static void InitStandardHandlers();
 145     //  (wxBitmap must implement this one)
 146
 147     static void CleanUpHandlers();
 148
 149 protected:
 150     static wxList sm_handlers;
 151
 152     DECLARE_ABSTRACT_CLASS(wxBitmapBase)
 153 };
 154 #endif
 155
 156 #if defined(__WXMSW__)
 157 #include "wx/msw/bitmap.h"
 158 #elif defined(__WXMOTIF__)
 159 #include "wx/motif/bitmap.h"
 160 #elif defined(__WXGTK__)
 161 #include "wx/gtk/bitmap.h"
 162 #elif defined(__WXMGL__)
 163 #include "wx/mgl/bitmap.h"
 164 #elif defined(__WXMAC__)
 165 #include "wx/mac/bitmap.h"
 166 #elif defined(__WXPM__)
 167 #include "wx/os2/bitmap.h"
 168 #elif defined(__WXSTUBS__)
 169 #include "wx/stubs/bitmap.h"
 170 #endif
 171
 172 #endif
 173     // _WX_BITMAP_H_BASE_