/* -*- 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 .
*/
namespace com::sun::star::awt { class XTopWindow; }
/* Definition of BufferedGraphicDeviceBase class */
namespace canvas
{ /** Helper template base class for XGraphicDevice implementations on windows.
Use this base class if your target device is a window. Additionally to GraphicDeviceBase, this template provides an implementation of the awt::XWindowListener interface, to receive notifications about state changes of the associated window.
@tpl Base Base class to use, most probably one of the WeakComponentImplHelperN templates with the appropriate interfaces. At least XGraphicDevice 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). As the very least, the base class must be derived from uno::XInterface, as some error reporting mechanisms rely on that.
@tpl DeviceHelper Device helper implementation for the backend in question. This object will be held as a member of this template class, and basically gets forwarded all XGraphicDevice API calls that could not be handled generically.
@tpl Mutex Lock strategy to use. Defaults to using the BaseMutex-provided lock. Every time 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)
*/ template< class Base, class DeviceHelper, class Mutex=::osl::MutexGuard, class UnambiguousBase = css::uno::XInterface > class BufferedGraphicDeviceBase : public GraphicDeviceBase< Base, DeviceHelper, Mutex, UnambiguousBase >
{ public: typedef GraphicDeviceBase< Base, DeviceHelper, Mutex, UnambiguousBase > BaseType; typedef Mutex MutexType;
Use this method to set the window this canvas displays on. Comes in handy when the canvas needs to adapt size or output position to the changing window.
Whenever the bounds of the window change, <code>void notifySizeUpdate( const awt::Rectangle& rBounds )</code> is called, with rBounds the window bound rect relative to the frame window.
*/ void setWindow( const css::uno::Reference< css::awt::XWindow2 >& rWindow )
{ if( mxWindow.is() )
mxWindow->removeWindowListener( this );
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