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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /canvas/source/cairo/cairo_canvas.cxx
parentInitial commit. (diff)
downloadlibreoffice-upstream.tar.xz
libreoffice-upstream.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--canvas/source/cairo/cairo_canvas.cxx191
1 files changed, 191 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_canvas.cxx b/canvas/source/cairo/cairo_canvas.cxx
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+++ b/canvas/source/cairo/cairo_canvas.cxx
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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: */