125 lines
5.4 KiB
C++
125 lines
5.4 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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#pragma once
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#include <base/canvasbase.hxx>
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#include <com/sun/star/geometry/IntegerSize2D.hpp>
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namespace com::sun::star::rendering { class XBitmapCanvas; }
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namespace canvas
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{
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/** Helper template to handle XBitmapCanvas method forwarding to
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BitmapCanvasHelper
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Use this helper to handle the XBitmapCanvas part of your
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implementation.
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@tpl Base
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Base class to use, most probably one of the
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WeakComponentImplHelperN templates with the appropriate
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interfaces. At least XBitmapCanvas should be among them (why
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else would you use this template, then?). Base class must have
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a Base( const Mutex& ) constructor (like the
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WeakComponentImplHelperN templates have).
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@tpl CanvasHelper
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Canvas helper implementation for the backend in question
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@tpl Mutex
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Lock strategy to use. Defaults to using the
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BaseMutex-provided lock. Every time one of the methods is
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entered, an object of type Mutex is created with m_aMutex as
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the sole parameter, and destroyed again when the method scope
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is left.
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@tpl UnambiguousBase
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Optional unambiguous base class for XInterface of Base. It's
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sometimes necessary to specify this parameter, e.g. if Base
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derives from multiple UNO interface (were each provides its
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own version of XInterface, making the conversion ambiguous)
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@see CanvasBase for further contractual requirements towards
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the CanvasHelper type, and some examples.
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*/
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template< class Base,
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class CanvasHelper,
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class Mutex=::osl::MutexGuard,
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class UnambiguousBase=css::uno::XInterface > class BitmapCanvasBase :
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public CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase >
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{
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public:
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typedef CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase > BaseType;
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// XBitmap
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virtual css::geometry::IntegerSize2D SAL_CALL getSize( ) override
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{
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typename BaseType::MutexType aGuard( BaseType::m_aMutex );
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return BaseType::maCanvasHelper.getSize();
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}
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virtual sal_Bool SAL_CALL hasAlpha( ) override
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{
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return true;
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}
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virtual css::uno::Reference< css::rendering::XBitmap > SAL_CALL getScaledBitmap( const css::geometry::RealSize2D& newSize,
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sal_Bool beFast ) override
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{
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typename BaseType::MutexType aGuard( BaseType::m_aMutex );
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return BaseType::maCanvasHelper.getScaledBitmap( newSize, beFast );
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}
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};
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template< class Base,
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class CanvasHelper,
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class Mutex=::osl::MutexGuard,
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class UnambiguousBase = css::uno::XInterface > class BitmapCanvasBase2 :
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public BitmapCanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase >
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{
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typedef BitmapCanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase >
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BaseType;
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public:
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// XBitmapCanvas
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virtual void SAL_CALL copyRect( const css::uno::Reference< css::rendering::XBitmapCanvas >& sourceCanvas,
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const css::geometry::RealRectangle2D& sourceRect,
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const css::rendering::ViewState& sourceViewState,
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const css::rendering::RenderState& sourceRenderState,
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const css::geometry::RealRectangle2D& destRect,
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const css::rendering::ViewState& destViewState,
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const css::rendering::RenderState& destRenderState ) override
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{
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tools::verifyArgs(sourceCanvas, sourceRect, sourceViewState, sourceRenderState,
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destRect, destViewState, destRenderState,
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__func__,
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static_cast< typename BaseType::UnambiguousBaseType* >(this));
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typename BaseType::BaseType::MutexType aGuard( BaseType::m_aMutex );
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BaseType::BaseType::mbSurfaceDirty = true;
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}
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};
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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