69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: overlay.h
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// Purpose: interface of wxOverlay
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// Author: wxWidgets team
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// RCS-ID: $Id$
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxOverlay
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Creates an overlay over an existing window, allowing for manipulations like
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rubberbanding, etc. On wxOSX the overlay is implemented with native
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platform APIs, on the other platforms it is simulated using wxMemoryDC.
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@library{wxcore}
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@see wxDCOverlay, wxDC
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*/
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class wxOverlay
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{
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public:
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wxOverlay();
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~wxOverlay();
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/**
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Clears the overlay without restoring the former state. To be done, for
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example, when the window content has been changed and repainted.
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*/
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void Reset();
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};
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/**
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@class wxDCOverlay
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Connects an overlay with a drawing DC.
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@library{wxcore}
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@see wxOverlay, wxDC
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*/
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class wxDCOverlay
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{
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public:
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/**
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Connects this overlay to the corresponding drawing dc, if the overlay is
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not initialized yet this call will do so.
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*/
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wxDCOverlay(wxOverlay &overlay, wxDC *dc, int x , int y , int width , int height);
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/**
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Convenience wrapper that behaves the same using the entire area of the dc.
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*/
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wxDCOverlay(wxOverlay &overlay, wxDC *dc);
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/**
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Removes the connection between the overlay and the dc.
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*/
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virtual ~wxDCOverlay();
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/**
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Clears the layer, restoring the state at the last init.
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*/
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void Clear();
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};
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