/* -*- 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 <comphelper/diagnose_ex.hxx>
#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( u"Passed SystemGraphicsData invalid!" _ustr );
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 u"com.sun.star.rendering.Canvas.Cairo" _ustr;
}
// XServiceInfo
sal_Bool Canvas::supportsService(const OUString& sServiceName)
{
return cppu::supportsService(this , sServiceName);
}
OUString Canvas::getImplementationName()
{
return u"com.sun.star.comp.rendering.Canvas.Cairo" _ustr;
}
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 aSize = rBitmap.GetSizePixel();
pSurface = maDeviceHelper.createSurface( aData, aSize );
}
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);
try {
p->initialize();
} catch (css::uno::Exception&) {
p->dispose();
throw ;
}
return cppu::acquire(p.get());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=93 H=100 G=96
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-09-28)
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