Store canvas attributes in the canvas itself in the dialogs sample.

Simplify the code by not transferring font and colours between canvas and
wxTheApp but use canvas font and colours directly instead.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62265 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/dialogs/dialogs.h

@@ -117,9 +117,6 @@ class MyApp: public wxApp
 public:
     virtual bool OnInit();
 
-    wxFont       m_canvasFont;
-    wxColour     m_canvasTextColour;
-
 protected:
 #if wxUSE_LOG
     virtual wxAppTraits *CreateTraits() { return new MyAppTraits; }
@@ -434,7 +431,9 @@ class MyCanvas: public wxScrolledWindow
 public:
     MyCanvas(wxWindow *parent) : wxScrolledWindow(parent, wxID_ANY)
     {
+        SetForegroundColour(*wxBLACK);
         SetBackgroundColour(*wxWHITE);
+        SetFont(*wxNORMAL_FONT);
     }
 
 private: