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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_CANVAS_BASE_CACHEDPRIMITIVEBASE_HXX
#define INCLUDED_CANVAS_BASE_CACHEDPRIMITIVEBASE_HXX
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XCachedPrimitive.hpp>
#include <com/sun/star/rendering/ViewState.hpp>
#include <cppuhelper/compbase2.hxx>
#include <comphelper/broadcasthelper.hxx>
#include <canvas/canvastoolsdllapi.h>
/* Definition of CachedPrimitiveBase class */
namespace canvas
{
typedef ::cppu::WeakComponentImplHelper2< css::rendering::XCachedPrimitive,
css::lang::XServiceInfo > CachedPrimitiveBase_Base;
/** Base class, providing common functionality for implementers of
the XCachedPrimitive interface.
*/
class CANVASTOOLS_DLLPUBLIC CachedPrimitiveBase:
public comphelper::OBaseMutex, public CachedPrimitiveBase_Base
{
public:
/** Create an XCachedPrimitive for given target canvas
@param rUsedViewState
The viewstate the original object was rendered with
@param rTarget
The target canvas the repaint should happen on.
@param bFailForChangedViewTransform
When true, derived classes will never receive doRedraw()
calls with dissimilar view transformations and
bSameViewTransform set to false. This is useful for cached
objects where re-transforming the generated output is not
desirable, e.g. for hinted font output.
*/
CachedPrimitiveBase( const css::rendering::ViewState& rUsedViewState,
const css::uno::Reference< css::rendering::XCanvas >& rTarget,
bool bFailForChangedViewTransform );
/// Dispose all internal references
virtual void SAL_CALL disposing() override;
// XCachedPrimitive
virtual ::sal_Int8 SAL_CALL redraw( const css::rendering::ViewState& aState ) throw (css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
// XServiceInfo
virtual OUString SAL_CALL getImplementationName( ) throw (css::uno::RuntimeException, std::exception) override;
virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (css::uno::RuntimeException, std::exception) override;
virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw (css::uno::RuntimeException, std::exception) override;
protected:
virtual ~CachedPrimitiveBase(); // we're a ref-counted UNO class. _We_ destroy ourselves.
private:
CachedPrimitiveBase( const CachedPrimitiveBase& ) = delete;
CachedPrimitiveBase& operator=( const CachedPrimitiveBase& ) = delete;
/** Actually perform the requested redraw.
Clients must override this method, instead of the public
redraw() one.
@param rNewState
The viewstate to redraw with
@param rOldState
The viewstate this cache object was created with.
@param rTargetCanvas
Target canvas to render to.
@param bSameViewTransform
When true, rNewState and rOldState have the same transformation.
*/
virtual ::sal_Int8 doRedraw( const css::rendering::ViewState& rNewState,
const css::rendering::ViewState& rOldState,
const css::uno::Reference< css::rendering::XCanvas >& rTargetCanvas,
bool bSameViewTransform ) = 0;
css::rendering::ViewState maUsedViewState;
css::uno::Reference< css::rendering::XCanvas > mxTarget;
const bool mbFailForChangedViewTransform;
};
}
#endif // INCLUDED_CANVAS_BASE_CACHEDPRIMITIVEBASE_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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