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) wxWidgets 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 #include "wx/defs.h"
  20 #include "wx/object.h"
  21 #include "wx/string.h"
  22 #include "wx/gdiobj.h"
  23 #include "wx/gdicmn.h"  // for wxBitmapType
  24
  25 class WXDLLEXPORT wxBitmap;
  26 class WXDLLEXPORT wxBitmapHandler;
  27 class WXDLLEXPORT wxImage;
  28 class WXDLLEXPORT wxMask;
  29 class WXDLLEXPORT wxPalette;
  30
  31 #if defined(__WXMGL__) || \
  32     defined(__WXMAC__) || \
  33     defined(__WXGTK__) || \
  34     defined(__WXCOCOA__) || \
  35     defined(__WXMOTIF__) || \
  36     defined(__WXX11__)
  37 // Only used by some ports
  38 // FIXME -- make all ports (but MSW which uses wxGDIImage) use these base classes
  39
  40 // ----------------------------------------------------------------------------
  41 // wxBitmapHandler: class which knows how to create/load/save bitmaps in
  42 // different formats
  43 // ----------------------------------------------------------------------------
  44
  45 class WXDLLEXPORT wxBitmapHandlerBase : public wxObject
  46 {
  47 public:
  48     wxBitmapHandlerBase()
  49         : m_name()
  50         , m_extension()
  51         , m_type(wxBITMAP_TYPE_INVALID)
  52     { }
  53
  54     virtual ~wxBitmapHandlerBase() { }
  55
  56     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
  57                           int width, int height, int depth = 1) = 0;
  58     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
  59                           int desiredWidth, int desiredHeight) = 0;
  60     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
  61                           int type, const wxPalette *palette = NULL) = 0;
  62
  63     void SetName(const wxString& name)      { m_name = name; }
  64     void SetExtension(const wxString& ext)  { m_extension = ext; }
  65     void SetType(wxBitmapType type)         { m_type = type; }
  66     wxString GetName() const                { return m_name; }
  67     wxString GetExtension() const           { return m_extension; }
  68     wxBitmapType GetType() const            { return m_type; }
  69
  70 private:
  71     wxString      m_name;
  72     wxString      m_extension;
  73     wxBitmapType  m_type;
  74
  75 private:
  76     DECLARE_ABSTRACT_CLASS(wxBitmapHandlerBase)
  77 };
  78
  79 class WXDLLEXPORT wxBitmapBase : public wxGDIObject
  80 {
  81 public:
  82     wxBitmapBase() : wxGDIObject() {}
  83     virtual ~wxBitmapBase() {}
  84
  85     /*
  86     Derived class must implement these:
  87
  88     wxBitmap();
  89     wxBitmap(int width, int height, int depth = -1);
  90     wxBitmap(const char bits[], int width, int height, int depth = 1);
  91     wxBitmap(const char **bits);
  92     wxBitmap(char **bits);
  93     wxBitmap(const wxBitmap& bmp);
  94     wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM);
  95     wxBitmap(const wxImage& image, int depth = -1);
  96     wxBitmap& operator = (const wxBitmap& bmp);
  97     bool operator == (const wxBitmap& bmp) const;
  98     bool operator != (const wxBitmap& bmp) const;
  99
 100     bool Create(int width, int height, int depth = -1);
 101
 102     static void InitStandardHandlers();
 103     */
 104
 105     virtual bool Ok() const = 0;
 106
 107     virtual int GetHeight() const = 0;
 108     virtual int GetWidth() const = 0;
 109     virtual int GetDepth() const = 0;
 110
 111     virtual wxImage ConvertToImage() const = 0;
 112
 113     virtual wxMask *GetMask() const = 0;
 114     virtual void SetMask(wxMask *mask) = 0;
 115
 116     virtual wxBitmap GetSubBitmap(const wxRect& rect) const = 0;
 117
 118     virtual bool SaveFile(const wxString &name, wxBitmapType type,
 119                           const wxPalette *palette = (wxPalette *)NULL) const = 0;
 120     virtual bool LoadFile(const wxString &name, wxBitmapType type) = 0;
 121
 122     /*
 123        If raw bitmap access is supported (see wx/rawbmp.h), the following
 124        methods should be implemented:
 125
 126        virtual bool GetRawData(wxRawBitmapData *data) = 0;
 127        virtual void UngetRawData(wxRawBitmapData *data) = 0;
 128      */
 129
 130 #if wxUSE_PALETTE
 131     virtual wxPalette *GetPalette() const = 0;
 132     virtual void SetPalette(const wxPalette& palette) = 0;
 133 #endif // wxUSE_PALETTE
 134
 135     // copies the contents and mask of the given (colour) icon to the bitmap
 136     virtual bool CopyFromIcon(const wxIcon& icon) = 0;
 137
 138     // implementation:
 139     virtual void SetHeight(int height) = 0;
 140     virtual void SetWidth(int width) = 0;
 141     virtual void SetDepth(int depth) = 0;
 142
 143     // Format handling
 144     static inline wxList& GetHandlers() { return sm_handlers; }
 145     static void AddHandler(wxBitmapHandlerBase *handler);
 146     static void InsertHandler(wxBitmapHandlerBase *handler);
 147     static bool RemoveHandler(const wxString& name);
 148     static wxBitmapHandler *FindHandler(const wxString& name);
 149     static wxBitmapHandler *FindHandler(const wxString& extension, wxBitmapType bitmapType);
 150     static wxBitmapHandler *FindHandler(wxBitmapType bitmapType);
 151
 152     //static void InitStandardHandlers();
 153     //  (wxBitmap must implement this one)
 154
 155     static void CleanUpHandlers();
 156
 157 protected:
 158     static wxList sm_handlers;
 159
 160     DECLARE_ABSTRACT_CLASS(wxBitmapBase)
 161 };
 162 #endif
 163
 164 #if defined(__WXPALMOS__)
 165 #include "wx/palmos/bitmap.h"
 166 #elif defined(__WXMSW__)
 167 #include "wx/msw/bitmap.h"
 168 #elif defined(__WXMOTIF__)
 169 #include "wx/x11/bitmap.h"
 170 #elif defined(__WXGTK20__)
 171 #include "wx/gtk/bitmap.h"
 172 #elif defined(__WXGTK__)
 173 #include "wx/gtk1/bitmap.h"
 174 #elif defined(__WXX11__)
 175 #include "wx/x11/bitmap.h"
 176 #elif defined(__WXMGL__)
 177 #include "wx/mgl/bitmap.h"
 178 #elif defined(__WXMAC__)
 179 #include "wx/mac/bitmap.h"
 180 #elif defined(__WXCOCOA__)
 181 #include "wx/cocoa/bitmap.h"
 182 #elif defined(__WXPM__)
 183 #include "wx/os2/bitmap.h"
 184 #endif
 185
 186 #endif
 187     // _WX_BITMAP_H_BASE_