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