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Diffstat (limited to 'include/canvas/base/bitmapcanvasbase.hxx')
| -rw-r--r-- | include/canvas/base/bitmapcanvasbase.hxx | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/include/canvas/base/bitmapcanvasbase.hxx b/include/canvas/base/bitmapcanvasbase.hxx new file mode 100644 index 000000000000..5c1376b0632b --- /dev/null +++ b/include/canvas/base/bitmapcanvasbase.hxx @@ -0,0 +1,128 @@ +/* -*- 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_BITMAPCANVASBASE_HXX +#define INCLUDED_CANVAS_BITMAPCANVASBASE_HXX + +#include <canvas/base/canvasbase.hxx> +#include <com/sun/star/rendering/XBitmapCanvas.hpp> + +namespace canvas +{ + /** Helper template to handle XBitmapCanvas method forwarding to + BitmapCanvasHelper + + Use this helper to handle the XBitmapCanvas part of your + implementation. + + @tpl Base + Base class to use, most probably one of the + WeakComponentImplHelperN templates with the appropriate + interfaces. At least XBitmapCanvas should be among them (why + else would you use this template, then?). Base class must have + an Base( const Mutex& ) constructor (like the + WeakComponentImplHelperN templates have). + + @tpl CanvasHelper + Canvas helper implementation for the backend in question + + @tpl Mutex + Lock strategy to use. Defaults to using the + OBaseMutex-provided lock. Everytime one of the methods is + entered, an object of type Mutex is created with m_aMutex as + the sole parameter, and destroyed again when the method scope + is left. + + @tpl UnambiguousBase + Optional unambiguous base class for XInterface of Base. It's + sometimes necessary to specify this parameter, e.g. if Base + derives from multiple UNO interface (were each provides its + own version of XInterface, making the conversion ambiguous) + + @see CanvasBase for further contractual requirements towards + the CanvasHelper type, and some examples. + */ + template< class Base, + class CanvasHelper, + class Mutex=::osl::MutexGuard, + class UnambiguousBase=::com::sun::star::uno::XInterface > class BitmapCanvasBase : + public CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase > + { + public: + typedef CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase > BaseType; + + // XBitmapCanvas + virtual void SAL_CALL copyRect( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas >& sourceCanvas, + const ::com::sun::star::geometry::RealRectangle2D& sourceRect, + const ::com::sun::star::rendering::ViewState& sourceViewState, + const ::com::sun::star::rendering::RenderState& sourceRenderState, + const ::com::sun::star::geometry::RealRectangle2D& destRect, + const ::com::sun::star::rendering::ViewState& destViewState, + const ::com::sun::star::rendering::RenderState& destRenderState ) throw (::com::sun::star::lang::IllegalArgumentException, + ::com::sun::star::uno::RuntimeException) + { + tools::verifyArgs(sourceCanvas, sourceRect, sourceViewState, sourceRenderState, + destRect, destViewState, destRenderState, + BOOST_CURRENT_FUNCTION, + static_cast< typename BaseType::UnambiguousBaseType* >(this)); + + typename BaseType::MutexType aGuard( BaseType::m_aMutex ); + + BaseType::mbSurfaceDirty = true; + BaseType::maCanvasHelper.modifying(); + + BaseType::maCanvasHelper.copyRect( this, + sourceCanvas, + sourceRect, + sourceViewState, + sourceRenderState, + destRect, + destViewState, + destRenderState ); + } + + // XBitmap + virtual ::com::sun::star::geometry::IntegerSize2D SAL_CALL getSize( ) throw (::com::sun::star::uno::RuntimeException) + { + typename BaseType::MutexType aGuard( BaseType::m_aMutex ); + + return BaseType::maCanvasHelper.getSize(); + } + + virtual ::sal_Bool SAL_CALL hasAlpha( ) throw (::com::sun::star::uno::RuntimeException) + { + typename BaseType::MutexType aGuard( BaseType::m_aMutex ); + + return BaseType::maCanvasHelper.hasAlpha(); + } + + virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > SAL_CALL getScaledBitmap( const ::com::sun::star::geometry::RealSize2D& newSize, + sal_Bool beFast ) throw (::com::sun::star::uno::RuntimeException) + { + typename BaseType::MutexType aGuard( BaseType::m_aMutex ); + + return BaseType::maCanvasHelper.getScaledBitmap( newSize, beFast ); + } + + }; +} + +#endif /* INCLUDED_CANVAS_BITMAPCANVASBASE_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |