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                                   wxHeaderSortIconType WXUNUSED(sortArrow) = wxHDR_SORT_ICON_NONE,
  35                                   wxHeaderButtonParams* WXUNUSED(params) = NULL)
  36     {
  37         dc.SetBrush(*wxCYAN_BRUSH);
  38         dc.SetTextForeground(*wxRED);
  39         dc.DrawRoundedRectangle(rect, 10);
  40         dc.DrawLabel(_T("MyDllRenderer"), wxNullBitmap, rect, wxALIGN_CENTER);
  41     }
  42
  43     virtual wxRendererVersion GetVersion() const
  44     {
  45         return wxRendererVersion(wxRendererVersion::Current_Version,
  46                                  wxRendererVersion::Current_Age);
  47     }
  48
  49 #if 0 // just for debugging
  50     MyDllRenderer()
  51     {
  52         wxMessageBox(_T("Creating MyDllRenderer"), _T("Renderer Sample"));
  53     }
  54
  55     virtual ~MyDllRenderer()
  56     {
  57         wxMessageBox(_T("Deleting MyDllRenderer"), _T("Renderer Sample"));
  58     }
  59 #endif // 0
  60 };
  61
  62 extern "C"
  63 WXEXPORT wxRendererNative *wxCreateRenderer()
  64 {
  65     return new MyDllRenderer;
  66 }