office-gobmx/canvas/source/vcl/canvas.cxx
Thorsten Behrens 09b546cf9c Fix overloaded-virtual warning in canvas
With enabled -Woverloaded-virtual gcc warning (see
http://lists.freedesktop.org/archives/libreoffice/2011-March/009567.html),
canvas exposed a nasty clash between WeakComponentImplHelper::disposing
and XEventListener::disposing. Fixed by overriding *once* in baseclass,
and then calling disambiguated, renamed methods.
2011-04-08 16:47:25 +02:00

164 lines
5.5 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"
#include <canvas/debug.hxx>
#include <canvas/verbosetrace.hxx>
#include <canvas/canvastools.hxx>
#include <tools/diagnose_ex.h>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <vcl/canvastools.hxx>
#include <vcl/outdev.hxx>
#include <vcl/window.hxx>
#include <vcl/bitmapex.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <algorithm>
#include "canvas.hxx"
#include "windowoutdevholder.hxx"
using namespace ::com::sun::star;
namespace vclcanvas
{
namespace
{
class OutDevHolder : public OutDevProvider,
private ::boost::noncopyable
{
public:
explicit OutDevHolder( OutputDevice& rOutDev ) :
mrOutDev(rOutDev)
{}
private:
virtual OutputDevice& getOutDev() { return mrOutDev; }
virtual const OutputDevice& getOutDev() const { 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),
mxComponentContext( rxContext )
{
}
void Canvas::initialize()
{
// #i64742# Only perform initialization when not in probe mode
if( maArguments.getLength() == 0 )
return;
/* maArguments:
0: ptr to creating instance (Window or VirtualDevice)
1: SystemEnvData as a streamed Any (or empty for VirtualDevice)
2: current bounds of creating instance
3: bool, denoting always on top state for Window (always false for VirtualDevice)
4: XWindow for creating Window (or empty for VirtualDevice)
5: SystemGraphicsData as a streamed Any
*/
SolarMutexGuard aGuard;
VERBOSE_TRACE( "VCLCanvas::initialize called" );
ENSURE_ARG_OR_THROW( maArguments.getLength() >= 6 &&
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(
::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
"Passed OutDev invalid!")),
NULL);
OutDevProviderSharedPtr pOutdevProvider( new 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()
{
OSL_TRACE( "Canvas destroyed" );
}
void Canvas::disposeThis()
{
SolarMutexGuard aGuard;
mxComponentContext.clear();
// forward to parent
CanvasBaseT::disposeThis();
}
::rtl::OUString SAL_CALL Canvas::getServiceName( ) throw (::com::sun::star::uno::RuntimeException)
{
return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( 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: */