mirror of
https://invent.kde.org/graphics/okular
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80 lines
3.1 KiB
C++
80 lines
3.1 KiB
C++
/***************************************************************************
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* Copyright (C) 2005 by Piotr Szymanski <niedakh@gmail.com> *
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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 _KPDF_TETXTPAGE_H_
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#define _KPDF_TETXTPAGE_H_
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#include <qlinkedlist.h>
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#include <qstringlist.h>
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#include "area.h"
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class TextSelection;
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/*! @enum SearchDir
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* The enum holding the direction of searching.
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*! @enum SearchDir FromTop
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* Searching from top of the page, next result is to be found,
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* there was no earlier search result.
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*! @enum SearchDir NextRes
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* Searching for the next result on the page, earlier result should be
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* located so we search from the last result not from the beginning of the
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* page.
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*! @enum SearchDir PrevRes
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* Searching for the previous result on the page, earlier result should be
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* located so we search from the last result not from the beginning of the
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* page.
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*/
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typedef enum SearchDir{ FromTop, NextRes, PrevRes };
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/*! @struct KPDFTextEntity
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* @short Abstract textentity of KPDF
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* @par The context
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* A document can provide different forms of information about textual representation
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* of its contents. It can include information about positions of every character on the
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* page, this is the best possibility.
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*
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* But also it can provide information only about positions of every word on the page (not the character).
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* Furthermore it can provide information only about the position of the whole page's text on the page.
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*
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* Also some document types have glyphes - sets of characters rendered as one, so in search they should
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* appear as a text but are only one character when drawn on screen. We need to allow this.
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* @par The idea
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* We need several
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*/
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struct KPDFTextEntity
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{
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//
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QString txt;
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NormalizedRect* area;
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KPDFTextEntity(QString text, NormalizedRect* ar) : txt(text)
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{ area=ar; };
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~KPDFTextEntity() { delete area; };
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};
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class KPDFTextPage {
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public:
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RegularAreaRect* findText(const QString &query, SearchDir & direct,
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const bool &strictCase, const RegularAreaRect *area);
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QString * getText(const RegularAreaRect *rect);
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RegularAreaRect * getTextArea ( TextSelection* ) const;
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KPDFTextPage(QLinkedList<KPDFTextEntity*> words) : m_words(words) {};
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KPDFTextPage() : m_words() {};
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void append(QString txt, NormalizedRect* area)
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{ m_words.append(new KPDFTextEntity(txt,area) ); };
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~KPDFTextPage();
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private:
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RegularAreaRect * findTextInternal(const QString &query, bool forward,
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bool strictCase, const QLinkedList<KPDFTextEntity*>::Iterator &start, const QLinkedList<KPDFTextEntity*>::Iterator &end);
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QLinkedList<KPDFTextEntity*> m_words;
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};
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#endif
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