Added wxBORDER_THEME, wxWindow::GetDefaultBorderForControl(), wxWindow::CanApplyThemeBorder().

wxTextCtrl and wxSearchCtrl now get the correct border on wxMSW, and the wxRichTextCtrl sample
also now demonstrates correct borders.



git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47927 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/window.h

@@ -1221,6 +1221,9 @@ public:
     // area (normal windows can't, but e.g. menubar or statusbar can):
     virtual bool CanBeOutsideClientArea() const { return false; }
 
+    // returns true if the platform should explicitly apply a theme border
+    virtual bool CanApplyThemeBorder() const { return true; }
+
 protected:
     // event handling specific to wxWindow
     virtual bool TryValidator(wxEvent& event);
@@ -1381,6 +1384,11 @@ protected:
     // specified) border for the window class
     virtual wxBorder GetDefaultBorder() const;
 
+    // this allows you to implement standard control borders without
+    // repeating the code in different classes that are not derived from
+    // wxControl
+    virtual wxBorder GetDefaultBorderForControl() const { return wxWindowBase::GetDefaultBorder(); }
+
     // Get the default size for the new window if no explicit size given. TLWs
     // have their own default size so this is just for non top-level windows.
     static int WidthDefault(int w) { return w == wxDefaultCoord ? 20 : w; }