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-rw-r--r--canvas/source/vcl/canvascustomsprite.cxx158
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diff --git a/canvas/source/vcl/canvascustomsprite.cxx b/canvas/source/vcl/canvascustomsprite.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 <basegfx/point/b2dpoint.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/outdev.hxx>
+
+#include "canvascustomsprite.hxx"
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+
+ CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D& rSpriteSize,
+ rendering::XGraphicDevice& rDevice,
+ const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
+ const OutDevProviderSharedPtr& rOutDevProvider,
+ bool bShowSpriteBounds )
+ {
+ ENSURE_OR_THROW( rOwningSpriteCanvas &&
+ rOutDevProvider,
+ "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
+
+ // setup back buffer
+
+
+ const ::Size aSize(
+ static_cast<sal_Int32>( std::max( 1.0,
+ ceil( rSpriteSize.Width ))), // round up to nearest int,
+ // enforce sprite to have at
+ // least (1,1) pixel size
+ static_cast<sal_Int32>( std::max( 1.0,
+ ceil( rSpriteSize.Height ))) );
+
+ // create content backbuffer in screen depth
+ BackBufferSharedPtr pBackBuffer = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+ pBackBuffer->setSize( aSize );
+
+ // create mask backbuffer
+ BackBufferSharedPtr pBackBufferMask = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+ pBackBufferMask->setSize( aSize );
+
+ // TODO(F1): Implement alpha vdev (could prolly enable
+ // antialiasing again, then)
+
+ // disable font antialiasing (causes ugly shadows otherwise)
+ pBackBuffer->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+ pBackBufferMask->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+
+ // set mask vdev drawmode, such that everything is painted
+ // black. That leaves us with a binary image, white for
+ // background, black for painted content
+ pBackBufferMask->getOutDev().SetDrawMode( DrawModeFlags::BlackLine | DrawModeFlags::BlackFill | DrawModeFlags::BlackText |
+ DrawModeFlags::BlackGradient | DrawModeFlags::BlackBitmap );
+
+
+ // setup canvas helper
+
+
+ // always render into back buffer, don't preserve state (it's
+ // our private VDev, after all), have notion of alpha
+ maCanvasHelper.init( rDevice,
+ pBackBuffer,
+ false,
+ true );
+ maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
+
+
+ // setup sprite helper
+
+
+ maSpriteHelper.init( rSpriteSize,
+ rOwningSpriteCanvas,
+ pBackBuffer,
+ pBackBufferMask,
+ bShowSpriteBounds );
+
+ // clear sprite to 100% transparent
+ maCanvasHelper.clear();
+ }
+
+ OUString SAL_CALL CanvasCustomSprite::getImplementationName()
+ {
+ return "VCLCanvas.CanvasCustomSprite";
+ }
+
+ sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
+ {
+ return cppu::supportsService( this, ServiceName );
+ }
+
+ uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
+ {
+ return { "com.sun.star.rendering.CanvasCustomSprite" };
+ }
+
+ // Sprite
+ void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
+ bool bBufferedUpdate ) const
+ {
+ SolarMutexGuard aGuard;
+
+ redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
+ }
+
+ void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
+ const ::basegfx::B2DPoint& rOrigOutputPos,
+ bool bBufferedUpdate ) const
+ {
+ SolarMutexGuard aGuard;
+
+ maSpriteHelper.redraw( rOutDev,
+ rOrigOutputPos,
+ mbSurfaceDirty,
+ bBufferedUpdate );
+
+ mbSurfaceDirty = false;
+ }
+
+ bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const ::Point& rPt,
+ const ::Size& rSz,
+ const GraphicAttr& rAttr ) const
+ {
+ SolarMutexGuard aGuard;
+
+ mbSurfaceDirty = true;
+
+ return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+ }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */