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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 <sal/log.hxx>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <osl/mutex.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/sysdata.hxx>
#include <vcl/skia/SkiaHelper.hxx>
#include <cppuhelper/supportsservice.hxx>
#include "cairo_canvas.hxx"
using namespace ::cairo;
using namespace ::com::sun::star;
namespace cairocanvas
{
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;
assert( !SkiaHelper::isVCLSkiaEnabled() );
/* 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
*/
SAL_INFO("canvas.cairo","Canvas created " << this);
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER &&
maArguments[4].getValueTypeClass() == uno::TypeClass_SEQUENCE,
"Canvas::initialize: wrong number of arguments, or wrong types" );
// We expect a single Any here, containing a pointer to a valid
// VCL output device, on which to output (mostly needed for text)
sal_Int64 nPtr = 0;
maArguments[0] >>= nPtr;
OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
ENSURE_ARG_OR_THROW( pOutDev != nullptr,
"Canvas::initialize: invalid OutDev pointer" );
awt::Rectangle aBounds;
maArguments[1] >>= aBounds;
uno::Sequence<sal_Int8> aSeq;
maArguments[4] >>= aSeq;
const SystemGraphicsData* pSysData=reinterpret_cast<const SystemGraphicsData*>(aSeq.getConstArray());
if( !pSysData || !pSysData->nSize )
throw lang::NoSupportException( "Passed SystemGraphicsData invalid!" );
bool bHasCairo = pOutDev->SupportsCairo();
ENSURE_ARG_OR_THROW(bHasCairo, "SpriteCanvas::SpriteCanvas: No Cairo capability");
// setup helper
maDeviceHelper.init( *this, *pOutDev );
maCanvasHelper.init( basegfx::B2ISize(aBounds.Width, aBounds.Height), *this, this );
// forward surface to render on to canvashelper
maCanvasHelper.setSurface( maDeviceHelper.getSurface(), false );
maArguments.realloc(0);
}
Canvas::~Canvas()
{
SAL_INFO("canvas.cairo", "CairoCanvas destroyed" );
}
void Canvas::disposeThis()
{
::osl::MutexGuard aGuard( m_aMutex );
// forward to parent
CanvasBaseT::disposeThis();
}
OUString SAL_CALL Canvas::getServiceName( )
{
return "com.sun.star.rendering.Canvas.Cairo";
}
// XServiceInfo
sal_Bool Canvas::supportsService(const OUString& sServiceName)
{
return cppu::supportsService(this, sServiceName);
}
OUString Canvas::getImplementationName()
{
return "com.sun.star.comp.rendering.Canvas.Cairo";
}
css::uno::Sequence< OUString > Canvas::getSupportedServiceNames()
{
return { getServiceName() };
}
bool Canvas::repaint( const SurfaceSharedPtr& pSurface,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState )
{
return maCanvasHelper.repaint( pSurface, viewState, renderState );
}
SurfaceSharedPtr Canvas::getSurface()
{
return maDeviceHelper.getSurface();
}
SurfaceSharedPtr Canvas::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
{
return maDeviceHelper.createSurface( rSize, aContent );
}
SurfaceSharedPtr Canvas::createSurface( ::Bitmap& rBitmap )
{
SurfaceSharedPtr pSurface;
BitmapSystemData aData;
if( rBitmap.GetSystemData( aData ) ) {
const Size& rSize = rBitmap.GetSizePixel();
pSurface = maDeviceHelper.createSurface( aData, rSize );
}
return pSurface;
}
SurfaceSharedPtr Canvas::changeSurface()
{
// non-modifiable surface here
return SurfaceSharedPtr();
}
OutputDevice* Canvas::getOutputDevice()
{
return maDeviceHelper.getOutputDevice();
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_comp_rendering_Canvas_Cairo_get_implementation(
css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
{
rtl::Reference<cairocanvas::Canvas> p = new cairocanvas::Canvas(args, context);
p->acquire();
try {
p->initialize();
} catch (css::uno::Exception&) {
p->dispose();
p->release();
throw;
}
return static_cast<cppu::OWeakObject*>(p.get());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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