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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 <cppuhelper/supportsservice.hxx>
#include <tools/diagnose_ex.h>
#include <utility>
#include <vcl/bitmapex.hxx>
#include <vcl/BitmapTools.hxx>
#include <cairo.h>
#include "cairo_canvasbitmap.hxx"
using namespace ::cairo;
using namespace ::com::sun::star;
namespace cairocanvas
{
CanvasBitmap::CanvasBitmap( const ::basegfx::B2ISize& rSize,
SurfaceProviderRef rSurfaceProvider,
rendering::XGraphicDevice* pDevice,
bool bHasAlpha ) :
mpSurfaceProvider(std::move( rSurfaceProvider )),
maSize(rSize),
mbHasAlpha(bHasAlpha)
{
ENSURE_OR_THROW( mpSurfaceProvider.is(),
"CanvasBitmap::CanvasBitmap(): Invalid surface or device" );
SAL_INFO(
"canvas.cairo",
"bitmap size: " << rSize.getX() << "x" << rSize.getY());
mpBufferSurface = mpSurfaceProvider->createSurface( rSize, bHasAlpha ? CAIRO_CONTENT_COLOR_ALPHA : CAIRO_CONTENT_COLOR );
mpBufferCairo = mpBufferSurface->getCairo();
maCanvasHelper.init( rSize, *mpSurfaceProvider, pDevice );
maCanvasHelper.setSurface( mpBufferSurface, bHasAlpha );
// clear bitmap to 100% transparent
maCanvasHelper.clear();
}
void CanvasBitmap::disposeThis()
{
mpSurfaceProvider.clear();
mpBufferCairo.reset();
mpBufferSurface.reset();
// forward to parent
CanvasBitmap_Base::disposeThis();
}
SurfaceSharedPtr CanvasBitmap::getSurface()
{
return mpBufferSurface;
}
SurfaceSharedPtr CanvasBitmap::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
{
return mpSurfaceProvider->createSurface(rSize,aContent);
}
SurfaceSharedPtr CanvasBitmap::createSurface( ::Bitmap& rBitmap )
{
return mpSurfaceProvider->createSurface(rBitmap);
}
SurfaceSharedPtr CanvasBitmap::changeSurface()
{
// non-modifiable surface here
return SurfaceSharedPtr();
}
OutputDevice* CanvasBitmap::getOutputDevice()
{
return mpSurfaceProvider->getOutputDevice();
}
bool CanvasBitmap::repaint( const SurfaceSharedPtr& pSurface,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState )
{
return maCanvasHelper.repaint( pSurface, viewState, renderState );
}
uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle )
{
uno::Any aRV( sal_Int32(0) );
// 0 ... get BitmapEx
// 1 ... get Pixbuf with bitmap RGB content
// 2 ... return nothing (empty Any)
switch( nHandle )
{
case 0:
{
aRV <<= reinterpret_cast<sal_Int64>( nullptr );
if ( !mbHasAlpha )
break;
BitmapEx* pBitmapEx = vcl::bitmap::CreateFromCairoSurface(
::Size( maSize.getX(), maSize.getY() ),
getSurface()->getCairoSurface().get());
if (pBitmapEx)
aRV <<= reinterpret_cast<sal_Int64>( pBitmapEx );
break;
}
case 1:
{
aRV = getOutputDevice()->GetNativeSurfaceHandle(mpBufferSurface, maSize);
break;
}
case 2:
{
// Always return nothing - for the RGB surface support.
// Alpha code paths go via the above case 0.
aRV = uno::Any();
break;
}
}
return aRV;
}
OUString SAL_CALL CanvasBitmap::getImplementationName( )
{
return "CairoCanvas.CanvasBitmap";
}
sal_Bool SAL_CALL CanvasBitmap::supportsService( const OUString& ServiceName )
{
return cppu::supportsService( this, ServiceName );
}
uno::Sequence< OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames( )
{
return { "com.sun.star.rendering.CanvasBitmap" };
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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