Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 191 insertions, 0 deletions

diff --git a/canvas/source/cairo/cairo_canvas.cxx b/canvas/source/cairo/cairo_canvas.cxx
new file mode 100644
index 000000000..622213dee
--- /dev/null
+++ b/canvas/source/cairo/cairo_canvas.cxx
@@ -0,0 +1,191 @@
+/* -*- 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: */