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| -rw-r--r-- | canvas/source/directx/dx_canvashelper.hxx | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/canvas/source/directx/dx_canvashelper.hxx b/canvas/source/directx/dx_canvashelper.hxx new file mode 100644 index 000000000..483033fd7 --- /dev/null +++ b/canvas/source/directx/dx_canvashelper.hxx @@ -0,0 +1,255 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_CANVAS_SOURCE_DIRECTX_DX_CANVASHELPER_HXX +#define INCLUDED_CANVAS_SOURCE_DIRECTX_DX_CANVASHELPER_HXX + +#include <com/sun/star/rendering/XCanvas.hpp> +#include <com/sun/star/rendering/XBitmapCanvas.hpp> +#include <com/sun/star/rendering/XIntegerBitmap.hpp> + +#include <basegfx/vector/b2isize.hxx> +#include <basegfx/vector/b2dsize.hxx> + +#include "dx_graphicsprovider.hxx" +#include "dx_gdiplususer.hxx" +#include "dx_impltools.hxx" + + +namespace dxcanvas +{ + /** Helper class for basic canvas functionality. Also offers + optional backbuffer painting, when providing it with a second + HDC to render into. + */ + class CanvasHelper + { + public: + CanvasHelper(); + + /// make noncopyable + CanvasHelper(const CanvasHelper&) = delete; + const CanvasHelper& operator=(const CanvasHelper&) = delete; + + /// Release all references + void disposing(); + + /** Initialize canvas helper + + This method late-initializes the canvas helper, providing + it with the necessary device and output objects. Note that + the CanvasHelper does <em>not</em> take ownership of the + passed rDevice reference, nor does it perform any + reference counting. Thus, to prevent the reference counted + SpriteCanvas object from deletion, the user of this class + is responsible for holding ref-counted references itself! + + @param rDevice + Reference device this canvas is associated with + + */ + void setDevice( css::rendering::XGraphicDevice& rDevice ); + + /** Set the target for rendering operations + + @param rTarget + Render target + */ + void setTarget( const GraphicsProviderSharedPtr& rTarget ); + + /** Set the target for rendering operations + + @param rTarget + Render target + + @param rOutputOffset + Output offset in pixel + */ + void setTarget( const GraphicsProviderSharedPtr& rTarget, + const ::basegfx::B2ISize& rOutputOffset ); + + + // CanvasHelper functionality + // ========================== + + // XCanvas (only providing, not implementing the + // interface. Also note subtle method parameter differences) + void clear(); + void drawPoint( const css::rendering::XCanvas* pCanvas, + const css::geometry::RealPoint2D& aPoint, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + void drawLine( const css::rendering::XCanvas* pCanvas, + const css::geometry::RealPoint2D& aStartPoint, + const css::geometry::RealPoint2D& aEndPoint, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + void drawBezier( const css::rendering::XCanvas* pCanvas, + const css::geometry::RealBezierSegment2D& aBezierSegment, + const css::geometry::RealPoint2D& aEndPoint, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + css::uno::Reference< css::rendering::XCachedPrimitive > + drawPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + css::uno::Reference< css::rendering::XCachedPrimitive > + strokePolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::rendering::StrokeAttributes& strokeAttributes ); + css::uno::Reference< css::rendering::XCachedPrimitive > + strokeTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::uno::Sequence< + css::rendering::Texture >& textures, + const css::rendering::StrokeAttributes& strokeAttributes ); + css::uno::Reference< css::rendering::XCachedPrimitive > + strokeTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::uno::Sequence< + css::rendering::Texture >& textures, + const css::uno::Reference< + css::geometry::XMapping2D >& xMapping, + const css::rendering::StrokeAttributes& strokeAttributes ); + css::uno::Reference< css::rendering::XPolyPolygon2D > + queryStrokeShapes( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::rendering::StrokeAttributes& strokeAttributes ); + css::uno::Reference< css::rendering::XCachedPrimitive > + fillPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + css::uno::Reference< css::rendering::XCachedPrimitive > + fillTexturedPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::uno::Sequence< + css::rendering::Texture >& textures ); + css::uno::Reference< css::rendering::XCachedPrimitive > + fillTextureMappedPolyPolygon( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + const css::uno::Sequence< + css::rendering::Texture >& textures, + const css::uno::Reference< + css::geometry::XMapping2D >& xMapping ); + + css::uno::Reference< css::rendering::XCanvasFont > + createFont( const css::rendering::XCanvas* pCanvas, + const css::rendering::FontRequest& fontRequest, + const css::uno::Sequence< + css::beans::PropertyValue >& extraFontProperties, + const css::geometry::Matrix2D& fontMatrix ); + + css::uno::Sequence< css::rendering::FontInfo > + queryAvailableFonts( const css::rendering::XCanvas* pCanvas, + const css::rendering::FontInfo& aFilter, + const css::uno::Sequence< + css::beans::PropertyValue >& aFontProperties ); + + css::uno::Reference< css::rendering::XCachedPrimitive > + drawText( const css::rendering::XCanvas* pCanvas, + const css::rendering::StringContext& text, + const css::uno::Reference< + css::rendering::XCanvasFont >& xFont, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState, + sal_Int8 textDirection ); + + css::uno::Reference< css::rendering::XCachedPrimitive > + drawTextLayout( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XTextLayout >& laidOutText, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + + css::uno::Reference< css::rendering::XCachedPrimitive > + drawBitmap( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XBitmap >& xBitmap, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + css::uno::Reference< css::rendering::XCachedPrimitive > + drawBitmapModulated( const css::rendering::XCanvas* pCanvas, + const css::uno::Reference< + css::rendering::XBitmap >& xBitmap, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + css::uno::Reference< css::rendering::XGraphicDevice > + getDevice(); + + // Flush drawing queue to screen + void flush() const; + + /** Called from XCanvas base classes, to notify that content + is _about_ to change + */ + void modifying() {} + + protected: + /// Refcounted global GDI+ state container + GDIPlusUserSharedPtr mpGdiPlusUser; + + /** Phyical output device + + Deliberately not a refcounted reference, because of + potential circular references for spritecanvas. + */ + css::rendering::XGraphicDevice* mpDevice; + + /// Provides the Gdiplus::Graphics to render into + GraphicsProviderSharedPtr mpGraphicsProvider; + + bool needOutput() const { return mpGraphicsProvider.get() != nullptr; }; + + // returns transparency of color + void setupGraphicsState( GraphicsSharedPtr const & rGraphics, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + + Gdiplus::CompositingMode calcCompositingMode( sal_Int8 nMode ); + + /// Current (transformation-independent) output buffer offset + ::basegfx::B2ISize maOutputOffset; + }; +} + +#endif // INCLUDED_CANVAS_SOURCE_DIRECTX_DX_CANVASHELPER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |