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, 257 insertions, 0 deletions

diff --git a/canvas/source/cairo/cairo_devicehelper.cxx b/canvas/source/cairo/cairo_devicehelper.cxx
new file mode 100644
index 000000000..5dacea7ae
--- /dev/null
+++ b/canvas/source/cairo/cairo_devicehelper.cxx
@@ -0,0 +1,257 @@
+/* -*- 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 <basegfx/utils/canvastools.hxx>
+#include <basegfx/utils/unopolypolygon.hxx>
+#include <tools/stream.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/dibtools.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "cairo_canvasbitmap.hxx"
+#include "cairo_devicehelper.hxx"
+
+using namespace ::cairo;
+using namespace ::com::sun::star;
+
+namespace cairocanvas
+{
+    DeviceHelper::DeviceHelper() :
+        mpSurfaceProvider( nullptr ),
+        mpRefDevice( nullptr )
+    {
+    }
+
+    void DeviceHelper::implInit( SurfaceProvider& rSurfaceProvider,
+                                 OutputDevice&    rRefDevice )
+    {
+        mpSurfaceProvider = &rSurfaceProvider;
+        mpRefDevice = &rRefDevice;
+
+        // no own surface, this is handled by derived classes
+    }
+
+    void DeviceHelper::init( SurfaceProvider& rSurfaceProvider,
+                             OutputDevice&    rRefDevice )
+    {
+        implInit(rSurfaceProvider, rRefDevice);
+
+        OutputDevice* pOutDev = getOutputDevice();
+        mpSurface = pOutDev->CreateSurface(pOutDev->GetOutOffXPixel(),
+                                           pOutDev->GetOutOffYPixel(),
+                                           pOutDev->GetOutputWidthPixel(),
+                                           pOutDev->GetOutputHeightPixel());
+    }
+
+    void DeviceHelper::disposing()
+    {
+        // release all references
+        mpSurface.reset();
+        mpRefDevice = nullptr;
+        mpSurfaceProvider = nullptr;
+    }
+
+    void DeviceHelper::setSize( const ::basegfx::B2ISize& rSize )
+    {
+        SAL_INFO(
+            "canvas.cairo",
+            "device size " << rSize.getX() << " x " << rSize.getY());
+
+        if( !mpRefDevice )
+            return; // disposed
+
+        OutputDevice* pOutDev = getOutputDevice();
+
+        // X11 only
+        bool bReuseSurface = mpSurface &&
+                             mpSurface->Resize(rSize.getX() + pOutDev->GetOutOffXPixel(),
+                                               rSize.getY() + pOutDev->GetOutOffYPixel());
+
+        if (!bReuseSurface)
+        {
+            mpSurface = pOutDev->CreateSurface(
+                pOutDev->GetOutOffXPixel(),
+                pOutDev->GetOutOffYPixel(),
+                rSize.getX(), rSize.getY() );
+        }
+    }
+
+    geometry::RealSize2D DeviceHelper::getPhysicalResolution()
+    {
+        // Map a one-by-one millimeter box to pixel
+        const MapMode aOldMapMode( mpRefDevice->GetMapMode() );
+        mpRefDevice->SetMapMode( MapMode(MapUnit::MapMM) );
+        const Size aPixelSize( mpRefDevice->LogicToPixel(Size(1,1)) );
+        mpRefDevice->SetMapMode( aOldMapMode );
+
+        return vcl::unotools::size2DFromSize( aPixelSize );
+    }
+
+    geometry::RealSize2D DeviceHelper::getPhysicalSize()
+    {
+        if( !mpRefDevice )
+            return ::canvas::tools::createInfiniteSize2D(); // we're disposed
+
+        // Map the pixel dimensions of the output window to millimeter
+        const MapMode aOldMapMode( mpRefDevice->GetMapMode() );
+        mpRefDevice->SetMapMode( MapMode(MapUnit::MapMM) );
+        const Size aLogSize( mpRefDevice->PixelToLogic(mpRefDevice->GetOutputSizePixel()) );
+        mpRefDevice->SetMapMode( aOldMapMode );
+
+        return vcl::unotools::size2DFromSize( aLogSize );
+    }
+
+    uno::Reference< rendering::XLinePolyPolygon2D > DeviceHelper::createCompatibleLinePolyPolygon(
+        const uno::Reference< rendering::XGraphicDevice >&              ,
+        const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >&  points )
+    {
+        // disposed?
+        if( !mpSurfaceProvider )
+            return uno::Reference< rendering::XLinePolyPolygon2D >(); // we're disposed
+
+        return uno::Reference< rendering::XLinePolyPolygon2D >(
+            new ::basegfx::unotools::UnoPolyPolygon(
+                ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence( points ) ) );
+    }
+
+    uno::Reference< rendering::XBezierPolyPolygon2D > DeviceHelper::createCompatibleBezierPolyPolygon(
+        const uno::Reference< rendering::XGraphicDevice >&                      ,
+        const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >&  points )
+    {
+        // disposed?
+        if( !mpSurfaceProvider )
+            return uno::Reference< rendering::XBezierPolyPolygon2D >(); // we're disposed
+
+        return uno::Reference< rendering::XBezierPolyPolygon2D >(
+            new ::basegfx::unotools::UnoPolyPolygon(
+                ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence( points ) ) );
+    }
+
+    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  rDevice,
+        const geometry::IntegerSize2D&                      size )
+    {
+        // disposed?
+        if( !mpSurfaceProvider )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap(
+                ::basegfx::unotools::b2ISizeFromIntegerSize2D( size ),
+                SurfaceProviderRef(mpSurfaceProvider),
+                rDevice.get(),
+                false ));
+    }
+
+    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  ,
+        const geometry::IntegerSize2D&                      /*size*/ )
+    {
+        return uno::Reference< rendering::XVolatileBitmap >();
+    }
+
+    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleAlphaBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  rDevice,
+        const geometry::IntegerSize2D&                      size )
+    {
+        // disposed?
+        if( !mpSurfaceProvider )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap(
+                ::basegfx::unotools::b2ISizeFromIntegerSize2D( size ),
+                SurfaceProviderRef(mpSurfaceProvider),
+                rDevice.get(),
+                true ));
+    }
+
+    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileAlphaBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  ,
+        const geometry::IntegerSize2D&                      /*size*/ )
+    {
+        return uno::Reference< rendering::XVolatileBitmap >();
+    }
+
+    uno::Any DeviceHelper::isAccelerated() const
+    {
+        return css::uno::Any(false);
+    }
+
+    uno::Any DeviceHelper::getDeviceHandle() const
+    {
+        return uno::Any( reinterpret_cast< sal_Int64 >(mpRefDevice.get()) );
+    }
+
+    uno::Any DeviceHelper::getSurfaceHandle() const
+    {
+        return uno::Any();
+    }
+
+    uno::Reference<rendering::XColorSpace> const & DeviceHelper::getColorSpace() const
+    {
+        static uno::Reference<rendering::XColorSpace> SPACE = vcl::unotools::createStandardColorSpace();
+        // always the same
+        return SPACE;
+    }
+
+    void DeviceHelper::dumpScreenContent() const
+    {
+        static sal_Int32 nFilePostfixCount(0);
+
+        if( !mpRefDevice )
+            return;
+
+        OUString aFilename = "dbg_frontbuffer" + OUString::number(nFilePostfixCount) + ".bmp";
+
+        SvFileStream aStream( aFilename, StreamMode::STD_READWRITE );
+
+        const ::Point aEmptyPoint;
+        bool bOldMap( mpRefDevice->IsMapModeEnabled() );
+        mpRefDevice->EnableMapMode( false );
+        const ::BitmapEx aTempBitmap(mpRefDevice->GetBitmapEx(aEmptyPoint, mpRefDevice->GetOutputSizePixel()));
+        WriteDIB(aTempBitmap, aStream, false);
+        mpRefDevice->EnableMapMode( bOldMap );
+
+        ++nFilePostfixCount;
+    }
+
+    SurfaceSharedPtr DeviceHelper::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
+    {
+        if( mpSurface )
+            return mpSurface->getSimilar( aContent, rSize.getX(), rSize.getY() );
+
+        return SurfaceSharedPtr();
+    }
+
+    SurfaceSharedPtr DeviceHelper::createSurface( BitmapSystemData const & rData, const Size& rSize )
+    {
+        if (mpRefDevice)
+            return mpRefDevice->CreateBitmapSurface(rData, rSize);
+
+        return SurfaceSharedPtr();
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */