fixes potential crash under gatekeeper

[wxWidgets.git] / samples / render / renddll.cpp

diff --git a/samples/render/renddll.cpp b/samples/render/renddll.cpp
index 5ee3e37e1e3a7d4355c56d9242be0dbbae8f55c9..3789822551ff1d1c1f56dd2994f9448703d3140e 100644 (file)
--- a/samples/render/renddll.cpp
+++ b/samples/render/renddll.cpp
@@ -21,89 +21,25 @@
     #include "wx/dc.h"
 #endif
 
-class MyDllRenderer : public wxRendererNative
+// derive from wxDelegateRendererNative and not wxRendererNative itself to be
+// able to only reimplement the methods we want to show and not all of them
+class MyDllRenderer : public wxDelegateRendererNative
 {
 public:
     // draw the header control button (used by wxListCtrl)
-    virtual void DrawHeaderButton(wxWindow *win,
-                                  wxDC& dc,
-                                  const wxRect& rect,
-                                  int flags = 0)
+    virtual int DrawHeaderButton(wxWindow * WXUNUSED(win),
+                                 wxDC& dc,
+                                 const wxRect& rect,
+                                 int WXUNUSED(flags) = 0,
+                                 wxHeaderSortIconType WXUNUSED(sortArrow) = wxHDR_SORT_ICON_NONE,
+                                 wxHeaderButtonParams* WXUNUSED(params) = NULL)
     {
         dc.SetBrush(*wxCYAN_BRUSH);
         dc.SetTextForeground(*wxRED);
         dc.DrawRoundedRectangle(rect, 10);
-        dc.DrawLabel(_T("MyDllRenderer"), wxNullBitmap, rect, wxALIGN_CENTER);
-    }
-
-    // draw the expanded/collapsed icon for a tree control item
-    virtual void DrawTreeItemButton(wxWindow *win,
-                                    wxDC& dc,
-                                    const wxRect& rect,
-                                    int flags = 0)
-    {
-    }
-
-    // draw check button
-    virtual void DrawCheckButton(wxWindow *win,
-                                 wxDC& dc,
-                                 const wxRect& rect,
-                                 int flags = 0)
-    {
-    }
-
-    // draw blank button
-    virtual void DrawPushButton(wxWindow *win,
-                                wxDC& dc,
-                                const wxRect& rect,
-                                int flags = 0)
-    {
-    }
+        dc.DrawLabel("MyDllRenderer", wxNullBitmap, rect, wxALIGN_CENTER);
 
-    // draw the border for sash window: this border must be such that the sash
-    // drawn by DrawSash() blends into it well
-    virtual void DrawSplitterBorder(wxWindow *win,
-                                    wxDC& dc,
-                                    const wxRect& rect,
-                                    int flags = 0)
-    {
-    }
-
-    // draw a (vertical) sash
-    virtual void DrawSplitterSash(wxWindow *win,
-                                  wxDC& dc,
-                                  const wxSize& size,
-                                  wxCoord position,
-                                  wxOrientation orient,
-                                  int flags = 0)
-    {
-    }
-
-    // draw a combobox dropdown button
-    //
-    // flags may only use wxCONTROL_PRESSED
-    virtual void DrawComboBoxDropButton(wxWindow *win,
-                                        wxDC& dc,
-                                        const wxRect& rect,
-                                        int flags = 0)
-    {
-    }
-
-    // draw a dropdown arrow
-    //
-    // flags may use wxCONTROL_PRESSED and wxCONTROL_CURRENT
-    virtual void DrawDropArrow(wxWindow *win,
-                               wxDC& dc,
-                               const wxRect& rect,
-                               int flags = 0)
-    {
-    }
-
-    // get the splitter parameters: the x field of the returned point is the
-    // sash width and the y field is the border width
-    virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win)
-    {
-        return wxSplitterRenderParams(0, 0, 0);
+        return dc.GetTextExtent("MyDllRenderer").x;
     }
 
     virtual wxRendererVersion GetVersion() const
@@ -115,12 +51,12 @@ public:
 #if 0 // just for debugging
     MyDllRenderer()
     {
-        wxMessageBox(_T("Creating MyDllRenderer"), _T("Renderer Sample"));
+        wxMessageBox(wxT("Creating MyDllRenderer"), wxT("Renderer Sample"));
     }
 
     virtual ~MyDllRenderer()
     {
-        wxMessageBox(_T("Deleting MyDllRenderer"), _T("Renderer Sample"));
+        wxMessageBox(wxT("Deleting MyDllRenderer"), wxT("Renderer Sample"));
     }
 #endif // 0
 };