include/wx/msw/statbmp.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statbmp.h
   3 // Purpose:     wxStaticBitmap class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_STATBMP_H_
  13 #define _WX_STATBMP_H_
  14
  15 #ifdef __GNUG__
  16     #pragma interface "statbmp.h"
  17 #endif
  18
  19 #include "wx/control.h"
  20
  21 WXDLLEXPORT_DATA(extern const wxChar*) wxStaticBitmapNameStr;
  22
  23 // a control showing an icon or a bitmap
  24 class WXDLLEXPORT wxStaticBitmap : public wxControl
  25 {
  26     DECLARE_DYNAMIC_CLASS(wxStaticBitmap)
  27
  28 public:
  29     wxStaticBitmap() { Init(); }
  30
  31     wxStaticBitmap(wxWindow *parent,
  32                    wxWindowID id,
  33                    const wxBitmap& label,
  34                    const wxPoint& pos = wxDefaultPosition,
  35                    const wxSize& size = wxDefaultSize,
  36                    long style = 0,
  37                    const wxString& name = wxStaticBitmapNameStr)
  38     {
  39         Create(parent, id, label, pos, size, style, name);
  40     }
  41
  42     bool Create(wxWindow *parent,
  43                 wxWindowID id,
  44                 const wxBitmap& label,
  45                 const wxPoint& pos = wxDefaultPosition,
  46                 const wxSize& size = wxDefaultSize,
  47                 long style = 0,
  48                 const wxString& name = wxStaticBitmapNameStr);
  49
  50     virtual ~wxStaticBitmap() { Free(); }
  51
  52     virtual void SetIcon(const wxIcon& icon) { SetBitmap(icon); }
  53     virtual void SetBitmap(const wxBitmap& bitmap);
  54
  55     // assert failure is provoked by an attempt to get an icon from bitmap or
  56     // vice versa
  57     const wxIcon& GetIcon() const
  58         { wxASSERT( m_isIcon ); return *m_image.icon; }
  59     const wxBitmap& GetBitmap() const
  60         { wxASSERT( !m_isIcon ); return *m_image.bitmap; }
  61
  62     // overriden base class virtuals
  63     virtual bool AcceptsFocus() const { return FALSE; }
  64
  65     // IMPLEMENTATION
  66 #ifdef __WIN16__
  67     virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *item);
  68     virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
  69 #endif // __WIN16__
  70
  71 protected:
  72     void Init() { m_isIcon = TRUE; m_image.icon = NULL; }
  73     void Free();
  74
  75     // TRUE if icon/bitmap is valid
  76     bool ImageIsOk() const;
  77
  78     // we can have either an icon or a bitmap
  79     bool m_isIcon;
  80     union
  81     {
  82         wxIcon *icon;
  83         wxBitmap *bitmap;
  84     } m_image;
  85
  86     virtual wxSize DoGetBestSize();
  87 };
  88
  89 #endif
  90     // _WX_STATBMP_H_