58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_INC_SALVD_HXX
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#define INCLUDED_VCL_INC_SALVD_HXX
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#include "salgeom.hxx"
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class SalGraphics;
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/// A non-visible drawable/buffer (e.g. an X11 Pixmap).
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class VCL_PLUGIN_PUBLIC SalVirtualDevice
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: public SalGeometryProvider
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{
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public:
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SalVirtualDevice() {}
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virtual ~SalVirtualDevice();
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// SalGeometryProvider
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virtual bool IsOffScreen() const override { return true; }
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// SalGraphics or NULL, but two Graphics for all SalVirtualDevices
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// must be returned
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virtual SalGraphics* AcquireGraphics() = 0;
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virtual void ReleaseGraphics( SalGraphics* pGraphics ) = 0;
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// Set new size, without saving the old contents
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virtual bool SetSize( long nNewDX, long nNewDY ) = 0;
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// Set new size using a buffer at the given address
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virtual bool SetSizeUsingBuffer( long nNewDX, long nNewDY,
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sal_uInt8 * /* pBuffer */)
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{
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// Only the headless virtual device has an implementation that uses
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// pBuffer (and bTopDown).
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return SetSize( nNewDX, nNewDY );
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}
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};
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#endif // INCLUDED_VCL_INC_SALVD_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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