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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/.
*
* 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/XTextLayout.hpp>
#include <basegfx/vector/b2isize.hxx>
#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: */
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