1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef SDEXT_PRESENTER_TEXT_VIEW_HXX 29*cdf0e10cSrcweir #define SDEXT_PRESENTER_TEXT_VIEW_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include "PresenterTheme.hxx" 32*cdf0e10cSrcweir #include <com/sun/star/accessibility/XAccessibleText.hpp> 33*cdf0e10cSrcweir #include <com/sun/star/awt/Size.hpp> 34*cdf0e10cSrcweir #include <com/sun/star/geometry/RealPoint2D.hpp> 35*cdf0e10cSrcweir #include <com/sun/star/geometry/RealSize2D.hpp> 36*cdf0e10cSrcweir #include <com/sun/star/i18n/XBreakIterator.hpp> 37*cdf0e10cSrcweir #include <com/sun/star/i18n/XScriptTypeDetector.hpp> 38*cdf0e10cSrcweir #include <com/sun/star/rendering/XCanvas.hpp> 39*cdf0e10cSrcweir #include <com/sun/star/style/ParagraphAdjust.hpp> 40*cdf0e10cSrcweir #include <com/sun/star/text/XText.hpp> 41*cdf0e10cSrcweir #include <com/sun/star/uno/XComponentContext.hpp> 42*cdf0e10cSrcweir #include <cppuhelper/compbase1.hxx> 43*cdf0e10cSrcweir #include <cppuhelper/basemutex.hxx> 44*cdf0e10cSrcweir 45*cdf0e10cSrcweir namespace css = ::com::sun::star; 46*cdf0e10cSrcweir namespace cssu = ::com::sun::star::uno; 47*cdf0e10cSrcweir namespace cssa = ::com::sun::star::accessibility; 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir namespace sdext { namespace presenter { 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir class PresenterTextCaret 52*cdf0e10cSrcweir { 53*cdf0e10cSrcweir public: 54*cdf0e10cSrcweir PresenterTextCaret ( 55*cdf0e10cSrcweir const ::boost::function<css::awt::Rectangle(const sal_Int32,const sal_Int32)>& 56*cdf0e10cSrcweir rCharacterBoundsAccess, 57*cdf0e10cSrcweir const ::boost::function<void(const css::awt::Rectangle&)>& 58*cdf0e10cSrcweir rInvalidator); 59*cdf0e10cSrcweir ~PresenterTextCaret (void); 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir void ShowCaret (void); 62*cdf0e10cSrcweir void HideCaret (void); 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir sal_Int32 GetParagraphIndex (void) const; 65*cdf0e10cSrcweir sal_Int32 GetCharacterIndex (void) const; 66*cdf0e10cSrcweir void SetPosition ( 67*cdf0e10cSrcweir const sal_Int32 nParagraphIndex, 68*cdf0e10cSrcweir const sal_Int32 nCharacterIndex); 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir bool IsVisible (void) const; 71*cdf0e10cSrcweir 72*cdf0e10cSrcweir /** Set a (possibly empty) functor that broadcasts changes of the caret 73*cdf0e10cSrcweir position. This is used when a PresenterTextView object is set at 74*cdf0e10cSrcweir the accessibility object so that accessibility events can be sent 75*cdf0e10cSrcweir when the caret changes position. 76*cdf0e10cSrcweir */ 77*cdf0e10cSrcweir void SetCaretMotionBroadcaster ( 78*cdf0e10cSrcweir const ::boost::function<void(sal_Int32,sal_Int32,sal_Int32,sal_Int32)>& rBroadcaster); 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir css::awt::Rectangle GetBounds (void) const; 81*cdf0e10cSrcweir 82*cdf0e10cSrcweir private: 83*cdf0e10cSrcweir sal_Int32 mnParagraphIndex; 84*cdf0e10cSrcweir sal_Int32 mnCharacterIndex; 85*cdf0e10cSrcweir sal_Int32 mnCaretBlinkTaskId; 86*cdf0e10cSrcweir bool mbIsCaretVisible; 87*cdf0e10cSrcweir const ::boost::function<css::awt::Rectangle(const sal_Int32,const sal_Int32)> maCharacterBoundsAccess; 88*cdf0e10cSrcweir const ::boost::function<void(const css::awt::Rectangle&)> maInvalidator; 89*cdf0e10cSrcweir ::boost::function<void(sal_Int32,sal_Int32,sal_Int32,sal_Int32)> maBroadcaster; 90*cdf0e10cSrcweir css::awt::Rectangle maCaretBounds; 91*cdf0e10cSrcweir 92*cdf0e10cSrcweir void InvertCaret (void); 93*cdf0e10cSrcweir }; 94*cdf0e10cSrcweir typedef ::boost::shared_ptr<PresenterTextCaret> SharedPresenterTextCaret; 95*cdf0e10cSrcweir 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir //===== PresenterTextParagraph ================================================ 100*cdf0e10cSrcweir 101*cdf0e10cSrcweir class PresenterTextParagraph 102*cdf0e10cSrcweir { 103*cdf0e10cSrcweir public: 104*cdf0e10cSrcweir PresenterTextParagraph ( 105*cdf0e10cSrcweir const sal_Int32 nParagraphIndex, 106*cdf0e10cSrcweir const cssu::Reference<css::i18n::XBreakIterator>& rxBreakIterator, 107*cdf0e10cSrcweir const cssu::Reference<css::i18n::XScriptTypeDetector>& rxScriptTypeDetector, 108*cdf0e10cSrcweir const cssu::Reference<css::text::XTextRange>& rxTextRange, 109*cdf0e10cSrcweir const SharedPresenterTextCaret& rpCaret); 110*cdf0e10cSrcweir PresenterTextParagraph ( 111*cdf0e10cSrcweir const sal_Int32 nParagraphIndex, 112*cdf0e10cSrcweir const cssu::Reference<css::i18n::XBreakIterator>& rxBreakIterator, 113*cdf0e10cSrcweir const cssu::Reference<css::i18n::XScriptTypeDetector>& rxScriptTypeDetector, 114*cdf0e10cSrcweir const ::rtl::OUString& rsText, 115*cdf0e10cSrcweir const SharedPresenterTextCaret& rpCaret); 116*cdf0e10cSrcweir 117*cdf0e10cSrcweir void Paint ( 118*cdf0e10cSrcweir const cssu::Reference<css::rendering::XCanvas>& rxCanvas, 119*cdf0e10cSrcweir const css::geometry::RealSize2D& rSize, 120*cdf0e10cSrcweir const PresenterTheme::SharedFontDescriptor& rpFont, 121*cdf0e10cSrcweir const css::rendering::ViewState& rViewState, 122*cdf0e10cSrcweir css::rendering::RenderState& rRenderState, 123*cdf0e10cSrcweir const double nTopOffset, 124*cdf0e10cSrcweir const double nClipTop, 125*cdf0e10cSrcweir const double nClipBottom); 126*cdf0e10cSrcweir 127*cdf0e10cSrcweir sal_Int32 GetParagraphIndex (void) const; 128*cdf0e10cSrcweir double GetTotalTextHeight (void); 129*cdf0e10cSrcweir 130*cdf0e10cSrcweir sal_Int32 GetCharacterOffset (void) const; 131*cdf0e10cSrcweir void SetCharacterOffset (const sal_Int32 nCharacterOffset); 132*cdf0e10cSrcweir sal_Int32 GetCharacterCount (void) const; 133*cdf0e10cSrcweir sal_Unicode GetCharacter (const sal_Int32 nGlobalCharacterIndex) const; 134*cdf0e10cSrcweir ::rtl::OUString GetText (void) const; 135*cdf0e10cSrcweir cssa::TextSegment GetTextSegment ( 136*cdf0e10cSrcweir const sal_Int32 nOffset, 137*cdf0e10cSrcweir const sal_Int32 nGlobalCharacterIndex, 138*cdf0e10cSrcweir const sal_Int16 nTextType) const; 139*cdf0e10cSrcweir cssa::TextSegment GetWordTextSegment ( 140*cdf0e10cSrcweir const sal_Int32 nOffset, 141*cdf0e10cSrcweir const sal_Int32 nIndex) const; 142*cdf0e10cSrcweir cssa::TextSegment CreateTextSegment ( 143*cdf0e10cSrcweir sal_Int32 nStartIndex, 144*cdf0e10cSrcweir sal_Int32 nEndIndex) const; 145*cdf0e10cSrcweir css::awt::Rectangle GetCharacterBounds ( 146*cdf0e10cSrcweir sal_Int32 nGlobalCharacterIndex, 147*cdf0e10cSrcweir const bool bCaretBox); 148*cdf0e10cSrcweir sal_Int32 GetIndexAtPoint (const css::awt::Point& rPoint) const; 149*cdf0e10cSrcweir void SetupCellArray ( 150*cdf0e10cSrcweir const PresenterTheme::SharedFontDescriptor& rpFont); 151*cdf0e10cSrcweir void Format ( 152*cdf0e10cSrcweir const double nY, 153*cdf0e10cSrcweir const double nWidth, 154*cdf0e10cSrcweir const PresenterTheme::SharedFontDescriptor& rpFont); 155*cdf0e10cSrcweir sal_Int32 GetWordBoundary( 156*cdf0e10cSrcweir const sal_Int32 nLocalCharacterIndex, 157*cdf0e10cSrcweir const sal_Int32 nDistance); 158*cdf0e10cSrcweir sal_Int32 GetCaretPosition (void) const; 159*cdf0e10cSrcweir void SetCaretPosition (const sal_Int32 nPosition) const; 160*cdf0e10cSrcweir void SetOrigin (const double nXOrigin, const double nYOrigin); 161*cdf0e10cSrcweir css::awt::Point GetRelativeLocation (void) const; 162*cdf0e10cSrcweir css::awt::Size GetSize (void); 163*cdf0e10cSrcweir 164*cdf0e10cSrcweir private: 165*cdf0e10cSrcweir ::rtl::OUString msParagraphText; 166*cdf0e10cSrcweir const sal_Int32 mnParagraphIndex; 167*cdf0e10cSrcweir SharedPresenterTextCaret mpCaret; 168*cdf0e10cSrcweir 169*cdf0e10cSrcweir /** A portion of a string that encodes one unicode cell. It describes 170*cdf0e10cSrcweir number of characters in the unicode string that make up the cell and its 171*cdf0e10cSrcweir width in pixel (with respect to some configuration that is stored 172*cdf0e10cSrcweir externally or implicitly). 173*cdf0e10cSrcweir */ 174*cdf0e10cSrcweir class Cell 175*cdf0e10cSrcweir { 176*cdf0e10cSrcweir public: 177*cdf0e10cSrcweir Cell (const sal_Int32 nCharacterIndex, const sal_Int32 nCharacterCount, const double nCellWidth); 178*cdf0e10cSrcweir sal_Int32 mnCharacterIndex; 179*cdf0e10cSrcweir sal_Int32 mnCharacterCount; 180*cdf0e10cSrcweir double mnCellWidth; 181*cdf0e10cSrcweir }; 182*cdf0e10cSrcweir 183*cdf0e10cSrcweir class Line 184*cdf0e10cSrcweir { 185*cdf0e10cSrcweir public: 186*cdf0e10cSrcweir Line (const sal_Int32 nLineStartCharacterIndex, const sal_Int32 nLineEndCharacterIndex); 187*cdf0e10cSrcweir sal_Int32 mnLineStartCharacterIndex; 188*cdf0e10cSrcweir sal_Int32 mnLineEndCharacterIndex; 189*cdf0e10cSrcweir sal_Int32 mnLineStartCellIndex; 190*cdf0e10cSrcweir sal_Int32 mnLineEndCellIndex; 191*cdf0e10cSrcweir cssu::Reference<css::rendering::XTextLayout> mxLayoutedLine; 192*cdf0e10cSrcweir double mnBaseLine; 193*cdf0e10cSrcweir double mnWidth; 194*cdf0e10cSrcweir cssu::Sequence<css::geometry::RealRectangle2D> maCellBoxes; 195*cdf0e10cSrcweir 196*cdf0e10cSrcweir sal_Int32 GetLength (void) const; 197*cdf0e10cSrcweir void ProvideLayoutedLine ( 198*cdf0e10cSrcweir const ::rtl::OUString& rsParagraphText, 199*cdf0e10cSrcweir const PresenterTheme::SharedFontDescriptor& rpFont, 200*cdf0e10cSrcweir const sal_Int8 nTextDirection); 201*cdf0e10cSrcweir void ProvideCellBoxes (void); 202*cdf0e10cSrcweir bool IsEmpty (void) const; 203*cdf0e10cSrcweir }; 204*cdf0e10cSrcweir 205*cdf0e10cSrcweir 206*cdf0e10cSrcweir cssu::Reference<css::i18n::XBreakIterator> mxBreakIterator; 207*cdf0e10cSrcweir cssu::Reference<css::i18n::XScriptTypeDetector> mxScriptTypeDetector; 208*cdf0e10cSrcweir ::std::vector<Line> maLines; 209*cdf0e10cSrcweir ::std::vector<sal_Int32> maWordBoundaries; 210*cdf0e10cSrcweir // Offset of the top of the paragraph with respect to the origin of the 211*cdf0e10cSrcweir // whole text (specified by mnXOrigin and mnYOrigin). 212*cdf0e10cSrcweir double mnVerticalOffset; 213*cdf0e10cSrcweir double mnXOrigin; 214*cdf0e10cSrcweir double mnYOrigin; 215*cdf0e10cSrcweir double mnWidth; 216*cdf0e10cSrcweir double mnAscent; 217*cdf0e10cSrcweir double mnDescent; 218*cdf0e10cSrcweir double mnLineHeight; 219*cdf0e10cSrcweir css::style::ParagraphAdjust meAdjust; 220*cdf0e10cSrcweir sal_Int8 mnWritingMode; 221*cdf0e10cSrcweir /// The index of the first character in this paragraph with respect to 222*cdf0e10cSrcweir /// the whole text. 223*cdf0e10cSrcweir sal_Int32 mnCharacterOffset; 224*cdf0e10cSrcweir ::std::vector<Cell> maCells; 225*cdf0e10cSrcweir 226*cdf0e10cSrcweir void AddWord ( 227*cdf0e10cSrcweir const double nWidth, 228*cdf0e10cSrcweir css::i18n::Boundary& rCurrentLine, 229*cdf0e10cSrcweir const sal_Int32 nWordBoundary, 230*cdf0e10cSrcweir const PresenterTheme::SharedFontDescriptor& rpFont); 231*cdf0e10cSrcweir void AddLine ( 232*cdf0e10cSrcweir css::i18n::Boundary& rCurrentLine); 233*cdf0e10cSrcweir sal_Int8 GetTextDirection (void) const; 234*cdf0e10cSrcweir bool IsTextReferencePointLeft (void) const; 235*cdf0e10cSrcweir }; 236*cdf0e10cSrcweir typedef ::boost::shared_ptr<PresenterTextParagraph> SharedPresenterTextParagraph; 237*cdf0e10cSrcweir 238*cdf0e10cSrcweir 239*cdf0e10cSrcweir 240*cdf0e10cSrcweir 241*cdf0e10cSrcweir /** A simple text view that paints text onto a given canvas. 242*cdf0e10cSrcweir */ 243*cdf0e10cSrcweir class PresenterTextView 244*cdf0e10cSrcweir { 245*cdf0e10cSrcweir public: 246*cdf0e10cSrcweir 247*cdf0e10cSrcweir PresenterTextView ( 248*cdf0e10cSrcweir const css::uno::Reference<css::uno::XComponentContext>& rxContext, 249*cdf0e10cSrcweir const css::uno::Reference<css::rendering::XCanvas>& rxCanvas, 250*cdf0e10cSrcweir const ::boost::function<void(const ::css::awt::Rectangle&)>& rInvalidator); 251*cdf0e10cSrcweir /** Create a new instance that does no output but only provides 252*cdf0e10cSrcweir geometric information to an accessibility object. 253*cdf0e10cSrcweir */ 254*cdf0e10cSrcweir PresenterTextView ( 255*cdf0e10cSrcweir const css::uno::Reference<css::uno::XComponentContext>& rxContext, 256*cdf0e10cSrcweir const css::uno::Reference<css::rendering::XCanvas>& rxCanvas); 257*cdf0e10cSrcweir 258*cdf0e10cSrcweir void SetText (const css::uno::Reference<css::text::XText>& rxText); 259*cdf0e10cSrcweir void SetText (const ::rtl::OUString& rsText); 260*cdf0e10cSrcweir void SetTextChangeBroadcaster (const ::boost::function<void(void)>& rBroadcaster); 261*cdf0e10cSrcweir 262*cdf0e10cSrcweir void SetLocation (const css::geometry::RealPoint2D& rLocation); 263*cdf0e10cSrcweir void SetSize (const css::geometry::RealSize2D& rSize); 264*cdf0e10cSrcweir double GetTotalTextHeight (void); 265*cdf0e10cSrcweir 266*cdf0e10cSrcweir void SetFont (const PresenterTheme::SharedFontDescriptor& rpFont); 267*cdf0e10cSrcweir 268*cdf0e10cSrcweir void SetOffset ( 269*cdf0e10cSrcweir const double nLeft, 270*cdf0e10cSrcweir const double nTop); 271*cdf0e10cSrcweir 272*cdf0e10cSrcweir /** Move the caret forward or backward by character or by word. 273*cdf0e10cSrcweir @param nDistance 274*cdf0e10cSrcweir Should be either -1 or +1 to move caret backwards or forwards, 275*cdf0e10cSrcweir respectively. 276*cdf0e10cSrcweir @param nTextType 277*cdf0e10cSrcweir Valid values are the 278*cdf0e10cSrcweir com::sun::star::accessibility::AccessibleTextType constants. 279*cdf0e10cSrcweir */ 280*cdf0e10cSrcweir void MoveCaret ( 281*cdf0e10cSrcweir const sal_Int32 nDistance, 282*cdf0e10cSrcweir const sal_Int16 nTextType); 283*cdf0e10cSrcweir 284*cdf0e10cSrcweir void Paint (const css::awt::Rectangle& rUpdateBox); 285*cdf0e10cSrcweir 286*cdf0e10cSrcweir SharedPresenterTextCaret GetCaret (void) const; 287*cdf0e10cSrcweir 288*cdf0e10cSrcweir sal_Int32 GetParagraphCount (void) const; 289*cdf0e10cSrcweir SharedPresenterTextParagraph GetParagraph (const sal_Int32 nParagraphIndex) const; 290*cdf0e10cSrcweir 291*cdf0e10cSrcweir private: 292*cdf0e10cSrcweir css::uno::Reference<css::rendering::XCanvas> mxCanvas; 293*cdf0e10cSrcweir bool mbDoOuput; 294*cdf0e10cSrcweir css::uno::Reference<css::i18n::XBreakIterator> mxBreakIterator; 295*cdf0e10cSrcweir css::uno::Reference<css::i18n::XScriptTypeDetector> mxScriptTypeDetector; 296*cdf0e10cSrcweir css::geometry::RealPoint2D maLocation; 297*cdf0e10cSrcweir css::geometry::RealSize2D maSize; 298*cdf0e10cSrcweir PresenterTheme::SharedFontDescriptor mpFont; 299*cdf0e10cSrcweir ::std::vector<SharedPresenterTextParagraph> maParagraphs; 300*cdf0e10cSrcweir SharedPresenterTextCaret mpCaret; 301*cdf0e10cSrcweir double mnLeftOffset; 302*cdf0e10cSrcweir double mnTopOffset; 303*cdf0e10cSrcweir const ::boost::function<void(const ::css::awt::Rectangle&)> maInvalidator; 304*cdf0e10cSrcweir bool mbIsFormatPending; 305*cdf0e10cSrcweir sal_Int32 mnCharacterCount; 306*cdf0e10cSrcweir ::boost::function<void(void)> maTextChangeBroadcaster; 307*cdf0e10cSrcweir 308*cdf0e10cSrcweir void RequestFormat (void); 309*cdf0e10cSrcweir void Format (void); 310*cdf0e10cSrcweir SharedPresenterTextParagraph GetParagraphForCharacterIndex (const sal_Int32 nCharacterIndex) const; 311*cdf0e10cSrcweir sal_Int32 GetCharacterOffset (const sal_Int32 nParagraphIndex) const; 312*cdf0e10cSrcweir css::awt::Rectangle GetCaretBounds ( 313*cdf0e10cSrcweir const sal_Int32 nParagraphIndex, 314*cdf0e10cSrcweir const sal_Int32 nCharacterIndex) const; 315*cdf0e10cSrcweir }; 316*cdf0e10cSrcweir 317*cdf0e10cSrcweir } } // end of namespace ::sdext::presenter 318*cdf0e10cSrcweir 319*cdf0e10cSrcweir #endif 320