ogl_canvashelper.hxx

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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/.
 */
 
#pragma once
 
#include <com/sun/star/rendering/XCanvas.hpp>
 
#include <o3tl/cow_wrapper.hxx>
#include <vector>
 
namespace oglcanvas
{
    class SpriteDeviceHelper;
 
    class CanvasHelper
    {
    public:
        CanvasHelper();
 
        // outline because of incomplete type Action
        ~CanvasHelper();
        CanvasHelper& operator=( const CanvasHelper& );
 
        void disposing();
 
        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); }
 
        bool renderRecordedActions() const;
 
        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 );
 
        css::rendering::XGraphicDevice*              mpDevice;
 
        SpriteDeviceHelper*                          mpDeviceHelper;
 
        RecordVectorT                                mpRecordedActions;
    };
}
 
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