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Implement wxBG_STYLE_TRANSPARENT support for wxGTK.

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Use composited windows if supported by GTK+ for wxWindows with this background
style.

Also add wxWindow::IsTransparentBackgroundSupported() and show how to use it
in the sample.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70569 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2012-02-11 16:26:52 +00:00
parent c3d3028a44
commit 1442168125
9 changed files with 297 additions and 24 deletions
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2
include/wx/gtk/window.h
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@ -81,6 +81,7 @@ public:
virtual bool SetFont( const wxFont &font );
virtual bool SetBackgroundStyle(wxBackgroundStyle style) ;
virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
virtual int GetCharHeight() const;
virtual int GetCharWidth() const;
@ -399,7 +400,6 @@ private:
bool DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units);
virtual void AddChildGTK(wxWindowGTK* child);
DECLARE_DYNAMIC_CLASS(wxWindowGTK)
wxDECLARE_NO_COPY_CLASS(wxWindowGTK);
};