canvas/source/cairo/cairo_textlayout.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
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  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_TEXTLAYOUT_HXX
  21 #define INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_TEXTLAYOUT_HXX
  22
  23 #include <cppuhelper/compbase2.hxx>
  24 #include <comphelper/broadcasthelper.hxx>
  25
  26 #include <com/sun/star/lang/XServiceInfo.hpp>
  27 #include <com/sun/star/rendering/XTextLayout.hpp>
  28
  29 #include <basegfx/vector/b2isize.hxx>
  30
  31 #include <vcl/outdev.hxx>
  32
  33 #include <boost/utility.hpp>
  34
  35 #include <vcl/cairo.hxx>
  36 #include "cairo_canvasfont.hxx"
  37
  38
  39 /* Definition of TextLayout class */
  40
  41 namespace cairocanvas
  42 {
  43     typedef ::cppu::WeakComponentImplHelper2< ::com::sun::star::rendering::XTextLayout,
  44                                                ::com::sun::star::lang::XServiceInfo > TextLayout_Base;
  45
  46     class TextLayout : public ::comphelper::OBaseMutex,
  47                        public TextLayout_Base,
  48                        private ::boost::noncopyable
  49     {
  50     public:
  51         TextLayout( const ::com::sun::star::rendering::StringContext& aText,
  52                     sal_Int8                                          nDirection,
  53                     sal_Int64                                         nRandomSeed,
  54                     const CanvasFont::Reference&                      rFont,
  55                     const SurfaceProviderRef&                         rRefDevice );
  56
  57         /// Dispose all internal references
  58         virtual void SAL_CALL disposing() SAL_OVERRIDE;
  59
  60         // XTextLayout
  61         virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D > > SAL_CALL queryTextShapes(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  62         virtual ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealRectangle2D > SAL_CALL queryInkMeasures(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  63         virtual ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealRectangle2D > SAL_CALL queryMeasures(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  64         virtual ::com::sun::star::uno::Sequence< double > SAL_CALL queryLogicalAdvancements(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  65         virtual void SAL_CALL applyLogicalAdvancements( const ::com::sun::star::uno::Sequence< double >& aAdvancements ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  66         virtual ::com::sun::star::geometry::RealRectangle2D SAL_CALL queryTextBounds(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  67         virtual double SAL_CALL justify( double nSize ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  68         virtual double SAL_CALL combinedJustify( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XTextLayout > >& aNextLayouts, double nSize ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  69         virtual ::com::sun::star::rendering::TextHit SAL_CALL getTextHit( const ::com::sun::star::geometry::RealPoint2D& aHitPoint ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  70         virtual ::com::sun::star::rendering::Caret SAL_CALL getCaret( sal_Int32 nInsertionIndex, sal_Bool bExcludeLigatures ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  71         virtual sal_Int32 SAL_CALL getNextInsertionIndex( sal_Int32 nStartIndex, sal_Int32 nCaretAdvancement, sal_Bool bExcludeLigatures ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  72         virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D > SAL_CALL queryVisualHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  73         virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D > SAL_CALL queryLogicalHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  74         virtual double SAL_CALL getBaselineOffset(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  75         virtual sal_Int8 SAL_CALL getMainTextDirection(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  76         virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvasFont > SAL_CALL getFont(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  77         virtual ::com::sun::star::rendering::StringContext SAL_CALL getText(  ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  78
  79         // XServiceInfo
  80         virtual OUString SAL_CALL getImplementationName() throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
  81         virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
  82         virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames()  throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
  83
  84         bool draw( ::cairo::CairoSharedPtr&                        pSCairo,
  85                    OutputDevice&                                   rOutDev,
  86                    const Point&                                    rOutpos,
  87                    const ::com::sun::star::rendering::ViewState&   viewState,
  88                    const ::com::sun::star::rendering::RenderState& renderState ) const;
  89
  90         void setupTextOffsets( long*                                       outputOffsets,
  91                                const ::com::sun::star::uno::Sequence< double >& inputOffsets,
  92                                const ::com::sun::star::rendering::ViewState&    viewState,
  93                                const ::com::sun::star::rendering::RenderState&  renderState     ) const;
  94
  95     protected:
  96         virtual ~TextLayout(); // we're a ref-counted UNO class. _We_ destroy ourselves.
  97
  98     private:
  99         ::com::sun::star::rendering::StringContext maText;
 100         ::com::sun::star::uno::Sequence< double >  maLogicalAdvancements;
 101         CanvasFont::Reference                      mpFont;
 102         SurfaceProviderRef                         mpRefDevice;
 103         sal_Int8                                   mnTextDirection;
 104
 105         bool isCairoRenderable(SystemFontData aSysFontData) const;
 106     };
 107
 108 }
 109
 110 #endif // INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_TEXTLAYOUT_HXX
 111
 112 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */