mirror of
https://invent.kde.org/graphics/okular
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122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/***************************************************************************
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* Copyright (C) 2006 by Tobias Koenig <tokoe@kde.org> *
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* Copyright (C) 2007 by Pino Toscano <pino@kde.org> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifndef _OKULAR_TEXTPAGE_P_H_
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#define _OKULAR_TEXTPAGE_P_H_
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#include <QtCore/QList>
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#include <QtCore/QMap>
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#include <QtGui/QMatrix>
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class SearchPoint;
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class TinyTextEntity;
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class RegionText;
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namespace Okular
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{
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class PagePrivate;
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typedef QList< TinyTextEntity* > TextList;
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typedef bool ( *TextComparisonFunction )( const QStringRef & from, const QStringRef & to,
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int *fromLength, int *toLength );
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/**
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* Make a line of TextList and store the bounding rectangle of line
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*/
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typedef QList<TextList> SortedTextList;
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typedef QList<QRect> LineRect;
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/**
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* A list of RegionText. It keeps a bunch of TextList with their bounding rectangles
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*/
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typedef QList<RegionText> RegionTextList;
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class TextPagePrivate
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{
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public:
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TextPagePrivate();
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~TextPagePrivate();
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RegularAreaRect * findTextInternalForward( int searchID, const QString &query,
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Qt::CaseSensitivity caseSensitivity,
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TextComparisonFunction comparer,
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const TextList::ConstIterator &start,
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const TextList::ConstIterator &end );
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RegularAreaRect * findTextInternalBackward( int searchID, const QString &query,
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Qt::CaseSensitivity caseSensitivity,
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TextComparisonFunction comparer,
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const TextList::ConstIterator &start,
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const TextList::ConstIterator &end );
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/**
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* Copy a TextList to m_words
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*/
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void copyTo(TextList &list);
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/**
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* Copy m_words to a TextList
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*/
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void copyFrom(TextList &list);
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/**
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* Remove odd spaces which are much bigger than normal spaces from m_words
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*/
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void removeSpace();
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/**
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* Create words from characters
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*/
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void makeWordFromCharacters();
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/**
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* Create lines from TextList and sort them according to their position
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*/
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void makeAndSortLines(TextList &words,SortedTextList &lines,LineRect &line_rects);
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/**
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* Caluclate statistical info like, word spacing, column spacing, line spacing from the Lines
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* we made
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*/
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void calculateStatisticalInformation(SortedTextList &lines, LineRect line_rects,int& word_spacing,
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int& line_spacing, int& column_spacing);
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/**
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* Functions necessary for document file segmentation into text regions for document layout
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* analysis.
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*/
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void XYCutForBoundingBoxes(int tcx,int tcy);
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/**
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* Add additional spaces between words, if necessary, which can make the words valuable
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* while copying after selection
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*/
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void addNecessarySpace();
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/**
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* Break the words into characters, so the text selection wors fine
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*/
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void breakWordIntoCharacters();
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// variables those can be accessed directly from TextPage
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QMap<int, RegionText> m_word_chars_map;
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RegionTextList m_XY_cut_tree;
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TextList m_spaces;
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TextList m_words;
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QMap< int, SearchPoint* > m_searchPoints;
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PagePrivate *m_page;
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SortedTextList m_lines;
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LineRect m_line_rects;
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};
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}
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#endif
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