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| -rw-r--r-- | canvas/source/opengl/ogl_canvashelper.hxx | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/canvas/source/opengl/ogl_canvashelper.hxx b/canvas/source/opengl/ogl_canvashelper.hxx new file mode 100644 index 000000000..49513983d --- /dev/null +++ b/canvas/source/opengl/ogl_canvashelper.hxx @@ -0,0 +1,219 @@ +/* -*- 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/. + */ + +#pragma once + +#include <com/sun/star/rendering/XCanvas.hpp> + +#include <o3tl/cow_wrapper.hxx> +#include <vector> + +namespace oglcanvas +{ + class SpriteDeviceHelper; + + /** Helper class for basic canvas functionality. */ + class CanvasHelper + { + public: + CanvasHelper(); + + // outline because of incomplete type Action + ~CanvasHelper(); + CanvasHelper& operator=( const CanvasHelper& ); + + /// 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 init( css::rendering::XGraphicDevice& rDevice, + SpriteDeviceHelper& rDeviceHelper ); + + // CanvasHelper functionality + // ========================== + + // XCanvas (only providing, not implementing the + // interface. Also note subtle method parameter differences) + void clear(); + 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 >& layoutetText, + 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() { return css::uno::Reference< css::rendering::XGraphicDevice >(mpDevice); } + + /** Write out recorded actions + */ + bool renderRecordedActions() const; + + /** Retrieve number of recorded actions + */ + size_t getRecordedActionCount() const; + + SpriteDeviceHelper* getDeviceHelper() const { return mpDeviceHelper; } + css::rendering::XGraphicDevice* getDevice() const { return mpDevice; } + + struct Action; + typedef o3tl::cow_wrapper< std::vector<Action>, + o3tl::ThreadSafeRefCountingPolicy > RecordVectorT; + + private: + CanvasHelper( const CanvasHelper& ) = delete; + + void setupGraphicsState( Action& o_action, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ); + + /** Phyical output device + + Deliberately not a refcounted reference, because of + potential circular references for spritecanvas. + */ + css::rendering::XGraphicDevice* mpDevice; + + /** Internal helper - used for a few global GL objects, + e.g. shader programs; and caches + */ + SpriteDeviceHelper* mpDeviceHelper; + + /** Ptr to array of recorded render calls + + Gets shared copy-on-write, when this CanvasHelper is + copied (used e.g. for CanvasBitmap) + */ + RecordVectorT mpRecordedActions; + }; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |