1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _CAIROCANVAS_TEXTLAYOUT_HXX 25 #define _CAIROCANVAS_TEXTLAYOUT_HXX 26 27 #include <cppuhelper/compbase2.hxx> 28 #include <comphelper/broadcasthelper.hxx> 29 30 #include <com/sun/star/lang/XServiceInfo.hpp> 31 #include <com/sun/star/rendering/XTextLayout.hpp> 32 33 #include <basegfx/vector/b2isize.hxx> 34 35 #include <vcl/outdev.hxx> 36 37 #include <boost/utility.hpp> 38 39 #include "cairo_cairo.hxx" 40 #include "cairo_canvasfont.hxx" 41 42 43 /* Definition of TextLayout class */ 44 45 namespace cairocanvas 46 { 47 typedef ::cppu::WeakComponentImplHelper2< ::com::sun::star::rendering::XTextLayout, 48 ::com::sun::star::lang::XServiceInfo > TextLayout_Base; 49 50 class TextLayout : public ::comphelper::OBaseMutex, 51 public TextLayout_Base, 52 private ::boost::noncopyable 53 { 54 public: 55 TextLayout( const ::com::sun::star::rendering::StringContext& aText, 56 sal_Int8 nDirection, 57 sal_Int64 nRandomSeed, 58 const CanvasFont::Reference& rFont, 59 const SurfaceProviderRef& rRefDevice ); 60 61 /// Dispose all internal references 62 virtual void SAL_CALL disposing(); 63 64 // XTextLayout 65 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); 66 virtual ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealRectangle2D > SAL_CALL queryInkMeasures( ) throw (::com::sun::star::uno::RuntimeException); 67 virtual ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealRectangle2D > SAL_CALL queryMeasures( ) throw (::com::sun::star::uno::RuntimeException); 68 virtual ::com::sun::star::uno::Sequence< double > SAL_CALL queryLogicalAdvancements( ) throw (::com::sun::star::uno::RuntimeException); 69 virtual void SAL_CALL applyLogicalAdvancements( const ::com::sun::star::uno::Sequence< double >& aAdvancements ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException); 70 virtual ::com::sun::star::geometry::RealRectangle2D SAL_CALL queryTextBounds( ) throw (::com::sun::star::uno::RuntimeException); 71 virtual double SAL_CALL justify( double nSize ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException); 72 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); 73 virtual ::com::sun::star::rendering::TextHit SAL_CALL getTextHit( const ::com::sun::star::geometry::RealPoint2D& aHitPoint ) throw (::com::sun::star::uno::RuntimeException); 74 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); 75 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); 76 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); 77 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); 78 virtual double SAL_CALL getBaselineOffset( ) throw (::com::sun::star::uno::RuntimeException); 79 virtual sal_Int8 SAL_CALL getMainTextDirection( ) throw (::com::sun::star::uno::RuntimeException); 80 virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvasFont > SAL_CALL getFont( ) throw (::com::sun::star::uno::RuntimeException); 81 virtual ::com::sun::star::rendering::StringContext SAL_CALL getText( ) throw (::com::sun::star::uno::RuntimeException); 82 83 // XServiceInfo 84 virtual ::rtl::OUString SAL_CALL getImplementationName() throw( ::com::sun::star::uno::RuntimeException ); 85 virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw( ::com::sun::star::uno::RuntimeException ); 86 virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames() throw( ::com::sun::star::uno::RuntimeException ); 87 88 bool draw( ::cairo::Cairo* pCairo ); 89 bool draw( SurfaceSharedPtr& pSurface, 90 OutputDevice& rOutDev, 91 const Point& rOutpos, 92 const ::com::sun::star::rendering::ViewState& viewState, 93 const ::com::sun::star::rendering::RenderState& renderState ) const; 94 95 void setupTextOffsets( sal_Int32* outputOffsets, 96 const ::com::sun::star::uno::Sequence< double >& inputOffsets, 97 const ::com::sun::star::rendering::ViewState& viewState, 98 const ::com::sun::star::rendering::RenderState& renderState ) const; 99 100 protected: 101 ~TextLayout(); // we're a ref-counted UNO class. _We_ destroy ourselves. 102 103 private: 104 ::com::sun::star::rendering::StringContext maText; 105 ::com::sun::star::uno::Sequence< double > maLogicalAdvancements; 106 CanvasFont::Reference mpFont; 107 SurfaceProviderRef mpRefDevice; 108 sal_Int8 mnTextDirection; 109 110 void useFont( ::cairo::Cairo* pCairo ); 111 bool isCairoRenderable(SystemFontData aSysFontData) const; 112 }; 113 114 } 115 116 #endif /* _CAIROCANVAS_TEXTLAYOUT_HXX */ 117