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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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__) || defined(__WXCOCOA__) || defined(__WXMOTIF__) || defined(__WXX11__)
  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         : m_name()
  49         , m_extension()
  50         , m_type(wxBITMAP_TYPE_INVALID)
  51     { }
  52
  53     virtual ~wxBitmapHandlerBase() { }
  54
  55     virtual bool Create(wxBitmap *bitmap, void *data, long flags,
  56                           int width, int height, int depth = 1) = 0;
  57     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
  58                           int desiredWidth, int desiredHeight) = 0;
  59     virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name,
  60                           int type, const wxPalette *palette = NULL) = 0;
  61
  62     void SetName(const wxString& name) { m_name = name; }
  63     void SetExtension(const wxString& ext) { m_extension = ext; }
  64     void SetType(wxBitmapType type) { m_type = type; }
  65     wxString GetName() const { return m_name; }
  66     wxString GetExtension() const { return m_extension; }
  67     wxBitmapType GetType() const { return m_type; }
  68
  69 protected:
  70     wxString      m_name;
  71     wxString      m_extension;
  72     wxBitmapType  m_type;
  73
  74     DECLARE_ABSTRACT_CLASS(wxBitmapHandlerBase)
  75 };
  76
  77 class WXDLLEXPORT wxBitmapBase : public wxGDIObject
  78 {
  79 public:
  80     wxBitmapBase() : wxGDIObject() {}
  81     virtual ~wxBitmapBase() {}
  82
  83     /*
  84     Derived class must implement these:
  85
  86     wxBitmap();
  87     wxBitmap(int width, int height, int depth = -1);
  88     wxBitmap(const char bits[], int width, int height, int depth = 1);
  89     wxBitmap(const char **bits);
  90     wxBitmap(char **bits);
  91     wxBitmap(const wxBitmap& bmp);
  92     wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM);
  93     wxBitmap(const wxImage& image, int depth = -1);
  94     wxBitmap& operator = (const wxBitmap& bmp);
  95     bool operator == (const wxBitmap& bmp) const;
  96     bool operator != (const wxBitmap& bmp) const;
  97
  98     bool Create(int width, int height, int depth = -1);
  99
 100     static void InitStandardHandlers();
 101     */
 102
 103     virtual bool Ok() const = 0;
 104
 105     virtual int GetHeight() const = 0;
 106     virtual int GetWidth() const = 0;
 107     virtual int GetDepth() const = 0;
 108
 109     virtual wxImage ConvertToImage() const = 0;
 110
 111     virtual wxMask *GetMask() const = 0;
 112     virtual void SetMask(wxMask *mask) = 0;
 113
 114     virtual wxBitmap GetSubBitmap(const wxRect& rect) const = 0;
 115
 116     virtual bool SaveFile(const wxString &name, wxBitmapType type,
 117                           const wxPalette *palette = (wxPalette *)NULL) const = 0;
 118     virtual bool LoadFile(const wxString &name, wxBitmapType type) = 0;
 119
 120     /*
 121        If raw bitmap access is supported (see wx/rawbmp.h), the following
 122        methods should be implemented:
 123
 124        virtual bool GetRawData(wxRawBitmapData *data) = 0;
 125        virtual void UngetRawData(wxRawBitmapData *data) = 0;
 126      */
 127
 128 #if wxUSE_PALETTE
 129     virtual wxPalette *GetPalette() const = 0;
 130     virtual void SetPalette(const wxPalette& palette) = 0;
 131 #endif // wxUSE_PALETTE
 132
 133     // copies the contents and mask of the given (colour) icon to the bitmap
 134     virtual bool CopyFromIcon(const wxIcon& icon) = 0;
 135
 136     // implementation:
 137     virtual void SetHeight(int height) = 0;
 138     virtual void SetWidth(int width) = 0;
 139     virtual void SetDepth(int depth) = 0;
 140
 141     // Format handling
 142     static inline wxList& GetHandlers() { return sm_handlers; }
 143     static void AddHandler(wxBitmapHandlerBase *handler);
 144     static void InsertHandler(wxBitmapHandlerBase *handler);
 145     static bool RemoveHandler(const wxString& name);
 146     static wxBitmapHandler *FindHandler(const wxString& name);
 147     static wxBitmapHandler *FindHandler(const wxString& extension, wxBitmapType bitmapType);
 148     static wxBitmapHandler *FindHandler(wxBitmapType bitmapType);
 149
 150     //static void InitStandardHandlers();
 151     //  (wxBitmap must implement this one)
 152
 153     static void CleanUpHandlers();
 154
 155 protected:
 156     static wxList sm_handlers;
 157
 158     DECLARE_ABSTRACT_CLASS(wxBitmapBase)
 159 };
 160 #endif
 161
 162 #if defined(__WXMSW__)
 163 #include "wx/msw/bitmap.h"
 164 #elif defined(__WXMOTIF__)
 165 #include "wx/x11/bitmap.h"
 166 #elif defined(__WXGTK__)
 167 #include "wx/gtk/bitmap.h"
 168 #elif defined(__WXX11__)
 169 #include "wx/x11/bitmap.h"
 170 #elif defined(__WXMGL__)
 171 #include "wx/mgl/bitmap.h"
 172 #elif defined(__WXMAC__)
 173 #include "wx/mac/bitmap.h"
 174 #elif defined(__WXCOCOA__)
 175 #include "wx/cocoa/bitmap.h"
 176 #elif defined(__WXPM__)
 177 #include "wx/os2/bitmap.h"
 178 #endif
 179
 180 #endif
 181     // _WX_BITMAP_H_BASE_