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| -rw-r--r-- | canvas/source/cairo/cairo_textlayout.hxx | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_textlayout.hxx b/canvas/source/cairo/cairo_textlayout.hxx new file mode 100644 index 000000000..b5ba2d84b --- /dev/null +++ b/canvas/source/cairo/cairo_textlayout.hxx @@ -0,0 +1,113 @@ +/* -*- 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_CAIRO_CAIRO_TEXTLAYOUT_HXX +#define INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_TEXTLAYOUT_HXX + +#include <cppuhelper/compbase.hxx> +#include <cppuhelper/basemutex.hxx> + +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/rendering/RenderState.hpp> +#include <com/sun/star/rendering/ViewState.hpp> +#include <com/sun/star/rendering/XTextLayout.hpp> + +#include <vcl/outdev.hxx> + +#include <vcl/cairo.hxx> +#include "cairo_canvasfont.hxx" + + +/* Definition of TextLayout class */ + +namespace cairocanvas +{ + typedef ::cppu::WeakComponentImplHelper< css::rendering::XTextLayout, + css::lang::XServiceInfo > TextLayout_Base; + + class TextLayout : public ::cppu::BaseMutex, + public TextLayout_Base + { + public: + /// make noncopyable + TextLayout(const TextLayout&) = delete; + const TextLayout& operator=(const TextLayout&) = delete; + + TextLayout( const css::rendering::StringContext& aText, + sal_Int8 nDirection, + sal_Int64 nRandomSeed, + const CanvasFont::Reference& rFont, + const SurfaceProviderRef& rRefDevice ); + + /// Dispose all internal references + virtual void SAL_CALL disposing() override; + + // XTextLayout + virtual css::uno::Sequence< css::uno::Reference< css::rendering::XPolyPolygon2D > > SAL_CALL queryTextShapes( ) override; + virtual css::uno::Sequence< css::geometry::RealRectangle2D > SAL_CALL queryInkMeasures( ) override; + virtual css::uno::Sequence< css::geometry::RealRectangle2D > SAL_CALL queryMeasures( ) override; + virtual css::uno::Sequence< double > SAL_CALL queryLogicalAdvancements( ) override; + virtual void SAL_CALL applyLogicalAdvancements( const css::uno::Sequence< double >& aAdvancements ) override; + virtual css::geometry::RealRectangle2D SAL_CALL queryTextBounds( ) override; + virtual double SAL_CALL justify( double nSize ) override; + virtual double SAL_CALL combinedJustify( const css::uno::Sequence< css::uno::Reference< css::rendering::XTextLayout > >& aNextLayouts, double nSize ) override; + virtual css::rendering::TextHit SAL_CALL getTextHit( const css::geometry::RealPoint2D& aHitPoint ) override; + virtual css::rendering::Caret SAL_CALL getCaret( sal_Int32 nInsertionIndex, sal_Bool bExcludeLigatures ) override; + virtual sal_Int32 SAL_CALL getNextInsertionIndex( sal_Int32 nStartIndex, sal_Int32 nCaretAdvancement, sal_Bool bExcludeLigatures ) override; + virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL queryVisualHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override; + virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL queryLogicalHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override; + virtual double SAL_CALL getBaselineOffset( ) override; + virtual sal_Int8 SAL_CALL getMainTextDirection( ) override; + virtual css::uno::Reference< css::rendering::XCanvasFont > SAL_CALL getFont( ) override; + virtual css::rendering::StringContext SAL_CALL getText( ) override; + + // XServiceInfo + virtual OUString SAL_CALL getImplementationName() override; + virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override; + virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + + void draw( ::cairo::CairoSharedPtr const & pSCairo, + OutputDevice& rOutDev, + const Point& rOutpos, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ) const; + + void setupTextOffsets( long* outputOffsets, + const css::uno::Sequence< double >& inputOffsets, + const css::rendering::ViewState& viewState, + const css::rendering::RenderState& renderState ) const; + + protected: + virtual ~TextLayout() override; // we're a ref-counted UNO class. _We_ destroy ourselves. + + private: + css::rendering::StringContext maText; + css::uno::Sequence< double > maLogicalAdvancements; + CanvasFont::Reference mpFont; + SurfaceProviderRef mpRefDevice; + sal_Int8 mnTextDirection; + + bool isCairoRenderable(SystemFontData aSysFontData) const; + }; + +} + +#endif // INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_TEXTLAYOUT_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |