271 lines
14 KiB
C++
271 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <com/sun/star/geometry/IntegerPoint2D.hpp>
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#include <com/sun/star/geometry/IntegerRectangle2D.hpp>
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#include <com/sun/star/rendering/IntegerBitmapLayout.hpp>
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#include <com/sun/star/rendering/XCanvas.hpp>
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#include <vcl/vclptr.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/cairo.hxx>
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#include "cairo_surfaceprovider.hxx"
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class VirtualDevice;
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namespace basegfx {
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class B2DPolyPolygon;
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}
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namespace cairocanvas
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{
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class SpriteCanvas;
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enum Operation {
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Stroke,
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Fill,
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Clip
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};
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class CanvasHelper
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{
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public:
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/// make noncopyable
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CanvasHelper(const CanvasHelper&) = delete;
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const CanvasHelper& operator=(const CanvasHelper&) = delete;
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CanvasHelper();
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/// Release all references
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void disposing();
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/** Initialize canvas helper
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This method late-initializes the canvas helper, providing
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it with the necessary device and size. Note that the
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CanvasHelper does <em>not</em> take ownership of the
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passed rDevice reference, nor does it perform any
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reference counting. Thus, to prevent the reference counted
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SpriteCanvas object from deletion, the user of this class
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is responsible for holding ref-counted references itself!
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@param rSizePixel
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Size of the output surface in pixel.
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@param rDevice
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Reference device this canvas is associated with
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*/
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void init( const ::basegfx::B2ISize& rSizePixel,
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SurfaceProvider& rSurfaceProvider,
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css::rendering::XGraphicDevice* pDevice );
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void setSize( const ::basegfx::B2ISize& rSize );
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void setSurface( const ::cairo::SurfaceSharedPtr& pSurface, bool bHasAlpha );
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// CanvasHelper functionality
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// ==========================
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// XCanvas (only providing, not implementing the
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// interface. Also note subtle method parameter differences)
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void clear();
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void drawLine( const css::rendering::XCanvas* pCanvas,
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const css::geometry::RealPoint2D& aStartPoint,
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const css::geometry::RealPoint2D& aEndPoint,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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void drawBezier( const css::rendering::XCanvas* pCanvas,
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const css::geometry::RealBezierSegment2D& aBezierSegment,
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const css::geometry::RealPoint2D& aEndPoint,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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drawPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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strokePolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference<
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css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::rendering::StrokeAttributes& strokeAttributes );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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strokeTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::uno::Sequence< css::rendering::Texture >& textures,
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const css::rendering::StrokeAttributes& strokeAttributes );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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strokeTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::uno::Sequence< css::rendering::Texture >& textures,
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const css::uno::Reference< css::geometry::XMapping2D >& xMapping,
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const css::rendering::StrokeAttributes& strokeAttributes );
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css::uno::Reference< css::rendering::XPolyPolygon2D >
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queryStrokeShapes( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::rendering::StrokeAttributes& strokeAttributes );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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fillPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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fillTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::uno::Sequence< css::rendering::Texture >& textures );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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fillTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::uno::Sequence< css::rendering::Texture >& textures,
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const css::uno::Reference< css::geometry::XMapping2D >& xMapping );
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css::uno::Reference< css::rendering::XCanvasFont >
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createFont( const css::rendering::XCanvas* pCanvas,
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const css::rendering::FontRequest& fontRequest,
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const css::uno::Sequence< css::beans::PropertyValue >& extraFontProperties,
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const css::geometry::Matrix2D& fontMatrix );
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css::uno::Sequence< css::rendering::FontInfo >
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queryAvailableFonts( const css::rendering::XCanvas* pCanvas,
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const css::rendering::FontInfo& aFilter,
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const css::uno::Sequence< css::beans::PropertyValue >& aFontProperties );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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drawText( const css::rendering::XCanvas* pCanvas,
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const css::rendering::StringContext& text,
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const css::uno::Reference< css::rendering::XCanvasFont >& xFont,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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sal_Int8 textDirection );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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drawTextLayout( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XTextLayout >& laidOutText,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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drawBitmap( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XBitmap >& xBitmap,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XCachedPrimitive >
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drawBitmapModulated( const css::rendering::XCanvas* pCanvas,
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const css::uno::Reference< css::rendering::XBitmap >& xBitmap,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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css::uno::Reference< css::rendering::XGraphicDevice >
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getDevice() { return css::uno::Reference< css::rendering::XGraphicDevice >(mpDevice); }
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// BitmapCanvasHelper functionality
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// ================================
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css::geometry::IntegerSize2D getSize() const;
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css::uno::Reference< css::rendering::XBitmap >
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getScaledBitmap( const css::geometry::RealSize2D& newSize,
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bool beFast );
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css::uno::Sequence< sal_Int8 >
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getData( css::rendering::IntegerBitmapLayout& bitmapLayout,
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const css::geometry::IntegerRectangle2D& rect );
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css::uno::Sequence< sal_Int8 >
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getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
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const css::geometry::IntegerPoint2D& pos );
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css::rendering::IntegerBitmapLayout getMemoryLayout();
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void doPolyPolygonPath( const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon,
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Operation aOperation,
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bool bNoLineJoin = false,
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const css::uno::Sequence< css::rendering::Texture >* pTextures=nullptr ) const;
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css::uno::Reference< css::rendering::XCachedPrimitive > implDrawBitmapSurface(
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const css::rendering::XCanvas* pCanvas,
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const ::cairo::SurfaceSharedPtr& pSurface,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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const css::geometry::IntegerSize2D& rSize,
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bool bModulateColors,
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bool bHasAlpha );
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bool repaint( const ::cairo::SurfaceSharedPtr& pSurface,
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const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState );
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protected:
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/** Surface provider
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Deliberately not a refcounted reference, because of
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potential circular references for canvas. Provides us with
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our output surface and associated functionality.
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*/
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SurfaceProvider* mpSurfaceProvider;
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/** Phyical output device
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Deliberately not a refcounted reference, because of
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potential circular references for spritecanvas.
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*/
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css::rendering::XGraphicDevice* mpDevice;
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private:
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VclPtr<VirtualDevice> mpVirtualDevice;
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void useStates( const css::rendering::ViewState& viewState,
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const css::rendering::RenderState& renderState,
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bool setColor );
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css::rendering::IntegerBitmapLayout impl_getMemoryLayout( sal_Int32 nWidth, sal_Int32 nHeight );
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/// When true, content is able to represent alpha
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bool mbHaveAlpha;
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::cairo::CairoSharedPtr mpCairo;
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::cairo::SurfaceSharedPtr mpSurface;
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::basegfx::B2ISize maSize;
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};
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/// also needed from SpriteHelper
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void doPolyPolygonImplementation( const ::basegfx::B2DPolyPolygon& aPolyPolygon,
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Operation aOperation,
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cairo_t* pCairo,
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const css::uno::Sequence< css::rendering::Texture >* pTextures,
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const SurfaceProviderRef& pDevice,
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css::rendering::FillRule eFillrule );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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