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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 <memory>
#include <utility>
#include <sal/log.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <com/sun/star/awt/XSystemDependentWindowPeer.hpp>
#include <com/sun/star/awt/XWindow.hpp>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <osl/mutex.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/sysdata.hxx>
#include <vcl/skia/SkiaHelper.hxx>
#include <vcl/window.hxx>
#include <canvas/canvastools.hxx>
#include "dx_canvas.hxx"
#include "dx_graphicsprovider.hxx"
#include "dx_winstuff.hxx"
using namespace ::com::sun::star;
namespace dxcanvas
{
namespace {
/// Actual canonical implementation of the GraphicsProvider interface
class GraphicsProviderImpl : public GraphicsProvider
{
GraphicsSharedPtr mpGraphics;
public:
explicit GraphicsProviderImpl( GraphicsSharedPtr && pGraphics ) : mpGraphics( std::move(pGraphics) ) {}
virtual GraphicsSharedPtr getGraphics() override { return mpGraphics; }
};
}
Canvas::Canvas( const uno::Sequence< uno::Any >& aArguments,
const uno::Reference< uno::XComponentContext >& rxContext ) :
maArguments(aArguments),
mxComponentContext( rxContext )
{
}
void Canvas::initialize()
{
// #i64742# Only perform initialization when not in probe mode
if( maArguments.getLength() == 0 )
return;
assert( !SkiaHelper::isVCLSkiaEnabled() );
SAL_INFO("canvas.directx", "Canvas::initialize called" );
// At index 1, we expect a HWND handle here, containing a
// pointer to a valid window, on which to output
// At index 2, we expect the current window bound rect
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
maArguments[4].getValueTypeClass() == uno::TypeClass_SEQUENCE,
"Canvas::initialize: wrong number of arguments, or wrong types" );
uno::Sequence<sal_Int8> aSeq;
maArguments[4] >>= aSeq;
const SystemGraphicsData* pSysData=reinterpret_cast<const SystemGraphicsData*>(aSeq.getConstArray());
if( !pSysData || !pSysData->hDC )
throw lang::NoSupportException("Passed SystemGraphicsData or HDC invalid!");
sal_Int64 nPtr = 0;
maArguments[0] >>= nPtr;
OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
ENSURE_ARG_OR_THROW( pOutDev != nullptr,"Canvas::initialize: invalid OutDev pointer" );
// setup helper
maDeviceHelper.init( pSysData->hDC, pOutDev, *this );
maCanvasHelper.setDevice( *this );
maCanvasHelper.setTarget(
std::make_shared<GraphicsProviderImpl>(
GraphicsSharedPtr(Gdiplus::Graphics::FromHDC(pSysData->hDC))));
maArguments.realloc(0);
}
void Canvas::disposeThis()
{
::osl::MutexGuard aGuard( m_aMutex );
mxComponentContext.clear();
// forward to parent
CanvasBaseT::disposeThis();
}
OUString SAL_CALL Canvas::getServiceName( )
{
return "com.sun.star.rendering.Canvas.GDI+";
}
// XServiceInfo
css::uno::Sequence<OUString> Canvas::getSupportedServiceNames( )
{
return { "com.sun.star.rendering.Canvas.GDI+" };
}
OUString Canvas::getImplementationName( )
{
return "com.sun.star.comp.rendering.Canvas.GDI+";
}
sal_Bool Canvas::supportsService( const OUString& sServiceName )
{
return cppu::supportsService(this, sServiceName);
}
BitmapCanvas::BitmapCanvas( const uno::Sequence< uno::Any >& aArguments,
const uno::Reference< uno::XComponentContext >& rxContext ) :
maArguments(aArguments),
mxComponentContext( rxContext ),
mpTarget()
{
}
void BitmapCanvas::initialize()
{
// #i64742# Only perform initialization when not in probe mode
if( maArguments.getLength() == 0 )
return;
SAL_INFO("canvas.directx", "BitmapCanvas::initialize called" );
// At index 1, we expect a HWND handle here, containing a
// pointer to a valid window, on which to output
// At index 2, we expect the current window bound rect
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
maArguments[4].getValueTypeClass() == uno::TypeClass_SEQUENCE,
"Canvas::initialize: wrong number of arguments, or wrong types" );
uno::Sequence<sal_Int8> aSeq;
maArguments[4] >>= aSeq;
const SystemGraphicsData* pSysData=reinterpret_cast<const SystemGraphicsData*>(aSeq.getConstArray());
if( !pSysData || !pSysData->hDC )
throw lang::NoSupportException( "Passed SystemGraphicsData or HDC invalid!");
sal_Int64 nPtr = 0;
maArguments[0] >>= nPtr;
OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
ENSURE_ARG_OR_THROW( pOutDev != nullptr,"Canvas::initialize: invalid OutDev pointer" );
// setup helper
maDeviceHelper.init( pSysData->hDC, pOutDev, *this );
maCanvasHelper.setDevice( *this );
// check whether we can actually provide a BitmapCanvas
// here. for this, check whether the HDC has a bitmap
// selected.
HBITMAP hBmp;
hBmp=static_cast<HBITMAP>(GetCurrentObject(pSysData->hDC, OBJ_BITMAP));
if( !hBmp || GetObjectType(pSysData->hDC) != OBJ_MEMDC )
{
throw lang::NoSupportException( "Passed HDC is no mem DC/has no bitmap selected!");
}
mpTarget = std::make_shared<DXBitmap>(
BitmapSharedPtr(
Gdiplus::Bitmap::FromHBITMAP(
hBmp, nullptr) ),
false );
maCanvasHelper.setTarget( mpTarget );
maArguments.realloc(0);
}
void BitmapCanvas::disposeThis()
{
::osl::MutexGuard aGuard( m_aMutex );
mpTarget.reset();
mxComponentContext.clear();
// forward to parent
BitmapCanvasBaseT::disposeThis();
}
OUString SAL_CALL BitmapCanvas::getServiceName( )
{
return "com.sun.star.rendering.BitmapCanvas.GDI+";
}
// XServiceInfo
css::uno::Sequence<OUString> BitmapCanvas::getSupportedServiceNames( )
{
return { "com.sun.star.rendering.BitmapCanvas.GDI+" };
}
OUString BitmapCanvas::getImplementationName( )
{
return "com.sun.star.comp.rendering.BitmapCanvas.GDI+";
}
sal_Bool BitmapCanvas::supportsService( const OUString& sServiceName )
{
return cppu::supportsService(this, sServiceName);
}
IBitmapSharedPtr BitmapCanvas::getBitmap() const
{
return mpTarget;
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
canvas_gdiplus_Canvas_get_implementation(
css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
{
rtl::Reference<Canvas> xCanvas(new Canvas(args, context));
xCanvas->initialize();
xCanvas->acquire();
return static_cast<cppu::OWeakObject*>(xCanvas.get());
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
canvas_gdiplus_BitmapCanvas_get_implementation(
css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
{
rtl::Reference<BitmapCanvas> xCanvas(new BitmapCanvas(args, context));
xCanvas->initialize();
xCanvas->acquire();
return static_cast<cppu::OWeakObject*>(xCanvas.get());
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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