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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 .
*/
#include <sal/config.h>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <sal/log.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/outdev.hxx>
#include "canvas.hxx"
using namespace ::com::sun::star;
namespace vclcanvas
{
namespace
{
class OutDevHolder : public OutDevProvider
{
public:
OutDevHolder(const OutDevHolder&) = delete;
const OutDevHolder& operator=(const OutDevHolder&) = delete;
explicit OutDevHolder( OutputDevice& rOutDev ) :
mrOutDev(rOutDev)
{}
private:
virtual OutputDevice& getOutDev() override { return mrOutDev; }
virtual const OutputDevice& getOutDev() const override { return mrOutDev; }
// TODO(Q2): Lifetime issue. This _only_ works reliably,
// if disposing the Canvas correctly disposes all
// entities which hold this pointer.
OutputDevice& mrOutDev;
};
}
Canvas::Canvas( const uno::Sequence< uno::Any >& aArguments,
const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :
maArguments(aArguments)
{
}
void Canvas::initialize()
{
// #i64742# Only perform initialization when not in probe mode
if( !maArguments.hasElements() )
return;
/* maArguments:
0: ptr to creating instance (Window or VirtualDevice)
1: current bounds of creating instance
2: bool, denoting always on top state for Window (always false for VirtualDevice)
3: XWindow for creating Window (or empty for VirtualDevice)
4: SystemGraphicsData as a streamed Any
*/
SolarMutexGuard aGuard;
SAL_INFO("canvas.vcl", "VCLCanvas::initialize called" );
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER,
"Canvas::initialize: wrong number of arguments, or wrong types" );
sal_Int64 nPtr = 0;
maArguments[0] >>= nPtr;
OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
if( !pOutDev )
throw lang::NoSupportException("Passed OutDev invalid!", nullptr);
OutDevProviderSharedPtr pOutdevProvider = std::make_shared<OutDevHolder>(*pOutDev);
// setup helper
maDeviceHelper.init( pOutdevProvider );
maCanvasHelper.init( *this,
pOutdevProvider,
true, // OutDev state preservation
false ); // no alpha on surface
maArguments.realloc(0);
}
Canvas::~Canvas()
{
SAL_INFO("canvas.vcl", "VCLCanvas destroyed" );
}
void Canvas::disposeThis()
{
SolarMutexGuard aGuard;
// forward to parent
CanvasBaseT::disposeThis();
}
OUString SAL_CALL Canvas::getServiceName( )
{
return CANVAS_SERVICE_NAME;
}
bool Canvas::repaint( const GraphicObjectSharedPtr& rGrf,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
const ::Point& rPt,
const ::Size& rSz,
const GraphicAttr& rAttr ) const
{
SolarMutexGuard aGuard;
return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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