samples/render/renddll.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        renddll.cpp
   3 // Purpose:     Example of a renderer implemented in a DLL
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.08.03
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #include "wx/renderer.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/dc.h"
  22 #endif
  23
  24 // derive from wxDelegateRendererNative and not wxRendererNative itself to be
  25 // able to only reimplement the methods we want to show and not all of them
  26 class MyDllRenderer : public wxDelegateRendererNative
  27 {
  28 public:
  29     // draw the header control button (used by wxListCtrl)
  30     virtual void DrawHeaderButton(wxWindow * WXUNUSED(win),
  31                                   wxDC& dc,
  32                                   const wxRect& rect,
  33                                   int WXUNUSED(flags) = 0)
  34     {
  35         dc.SetBrush(*wxCYAN_BRUSH);
  36         dc.SetTextForeground(*wxRED);
  37         dc.DrawRoundedRectangle(rect, 10);
  38         dc.DrawLabel(_T("MyDllRenderer"), wxNullBitmap, rect, wxALIGN_CENTER);
  39     }
  40
  41     virtual wxRendererVersion GetVersion() const
  42     {
  43         return wxRendererVersion(wxRendererVersion::Current_Version,
  44                                  wxRendererVersion::Current_Age);
  45     }
  46
  47 #if 0 // just for debugging
  48     MyDllRenderer()
  49     {
  50         wxMessageBox(_T("Creating MyDllRenderer"), _T("Renderer Sample"));
  51     }
  52
  53     virtual ~MyDllRenderer()
  54     {
  55         wxMessageBox(_T("Deleting MyDllRenderer"), _T("Renderer Sample"));
  56     }
  57 #endif // 0
  58 };
  59
  60 extern "C"
  61 WXEXPORT wxRendererNative *wxCreateRenderer()
  62 {
  63     return new MyDllRenderer;
  64 }