|
|
|
/***************************************************************************
|
|
|
|
* Copyright (C) 2005 by Alexander Nemish *
|
|
|
|
* atlanter@gmail.com *
|
|
|
|
* *
|
|
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
|
|
* it under the terms of the GNU General Public License as published by *
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
|
|
* (at your option) any later version. *
|
|
|
|
* *
|
|
|
|
* This program is distributed in the hope that it will be useful, *
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
|
|
* GNU General Public License for more details. *
|
|
|
|
* *
|
|
|
|
* You should have received a copy of the GNU General Public License *
|
|
|
|
* along with this program; if not, write to the *
|
|
|
|
* Free Software Foundation, Inc., *
|
|
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
|
|
|
***************************************************************************/
|
|
|
|
#ifndef RENDERER_H
|
|
|
|
#define RENDERER_H
|
|
|
|
|
|
|
|
#include <tqstringlist.h>
|
|
|
|
#include <tqfont.h>
|
|
|
|
#include <tqstring.h>
|
|
|
|
#include <tqobject.h>
|
|
|
|
#include <tqsize.h>
|
|
|
|
#include <tqtimer.h>
|
|
|
|
#include <vector>
|
|
|
|
#include <memory>
|
|
|
|
class TQStringList;
|
|
|
|
|
|
|
|
class TextLine
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
static const int PARA_NONE = 0;
|
|
|
|
static const int PARA_START = 1;
|
|
|
|
static const int PARA_END = 2;
|
|
|
|
static const int PARA_BOTH = 3;
|
|
|
|
|
|
|
|
TextLine(int index, int begin, int end, int paraFlags = PARA_NONE):
|
|
|
|
m_paragraphFlags(paraFlags),
|
|
|
|
m_begin(begin),
|
|
|
|
m_end(end),
|
|
|
|
m_index(index)
|
|
|
|
{}
|
|
|
|
bool isParaStart() const { return m_paragraphFlags & PARA_START; }
|
|
|
|
bool isParaEnd() const { return m_paragraphFlags & PARA_END; }
|
|
|
|
void setParagraphFlags(int flags) { m_paragraphFlags = flags; }
|
|
|
|
const int paragraphFlags() const { return m_paragraphFlags; }
|
|
|
|
const int paragraphIndex() const { return m_index; }
|
|
|
|
const int begin() const { return m_begin; }
|
|
|
|
const int end() const { return m_end; }
|
|
|
|
const int size() const { return m_end - m_begin; }
|
|
|
|
private:
|
|
|
|
int m_paragraphFlags;
|
|
|
|
int m_begin;
|
|
|
|
int m_end;
|
|
|
|
int m_index;
|
|
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
|
|
* \brief Renders input text into list of word wrapped strings
|
|
|
|
* \author Alexandr Nemish <anemish@gmail.com>
|
|
|
|
*/
|
|
|
|
class Renderer : public TQObject
|
|
|
|
{
|
|
|
|
Q_OBJECT
|
|
|
|
|
|
|
|
public:
|
|
|
|
Renderer();
|
|
|
|
~Renderer();
|
|
|
|
|
|
|
|
/// \brief Loads and renders list of strings
|
|
|
|
void load(const TQStringList & list);
|
|
|
|
/// \brief Renders loaded list of strings
|
|
|
|
void render();
|
|
|
|
/// \brief Clears all rendered data
|
|
|
|
void clear();
|
|
|
|
/// \brief Draws page
|
|
|
|
void drawPage(TQPainter & paint, TQRect rect, int pageNumber);
|
|
|
|
//Getters
|
|
|
|
/// \brief Returns whether the text is empty
|
|
|
|
bool isEmpty() const { return m_text.empty(); };
|
|
|
|
/// \brief Returns current font
|
|
|
|
TQFont font() const { return m_font; }
|
|
|
|
/// \brief Returns current paragraph offset in pixels
|
|
|
|
int paraOffset() const { return m_paraOffset; }
|
|
|
|
/// \brief Returns the number of pages
|
|
|
|
int pageCount() const { return m_pageCount; }
|
|
|
|
/// \brief Returns page size in pixels
|
|
|
|
TQSize pageSize() const { return m_pageSize; }
|
|
|
|
//Setters
|
|
|
|
/// \brief Sets current font
|
|
|
|
void setFont(const TQFont & font);
|
|
|
|
/// \brief Sets current paragraph offset in pixels
|
|
|
|
void setParaOffset(int offset);
|
|
|
|
/// \brief Sets size of a page
|
|
|
|
void setPageSize(const TQSize & size);
|
|
|
|
|
|
|
|
bool busy() const { return m_isRendering; }
|
|
|
|
signals:
|
|
|
|
void renderingFinished();
|
|
|
|
private slots:
|
|
|
|
void timeout();
|
|
|
|
private:
|
|
|
|
typedef TQStringList::const_iterator TStringIter;
|
|
|
|
typedef std::vector<TQString> TParagraphs;
|
|
|
|
typedef TParagraphs::size_type TIndex;
|
|
|
|
typedef std::vector<TextLine> TLines;
|
|
|
|
//make it non-copyable
|
|
|
|
Renderer(const Renderer &);
|
|
|
|
Renderer & operator = (const Renderer &);
|
|
|
|
/// \brief Renders input paragraph into list of wrapped lines
|
|
|
|
void parseParagraph(TIndex idx);
|
|
|
|
/// \brief Returns width of string in pixels
|
|
|
|
int width(const TQString & a_string) const;
|
|
|
|
void addLine(TextLine line);
|
|
|
|
int wordAt(const TQString & str, int len);
|
|
|
|
TQString getWord(const TQString & str, int idx);
|
|
|
|
/// \brief Draws justified string
|
|
|
|
void drawLine(TQPainter& paint, int x, int y, const TLines::size_type idx);
|
|
|
|
void cancel();
|
|
|
|
|
|
|
|
TParagraphs m_text;
|
|
|
|
TLines m_lines;
|
|
|
|
int m_pageCount;
|
|
|
|
int m_linesPerPage;
|
|
|
|
int m_paraOffset;
|
|
|
|
TQFont m_font;
|
|
|
|
std::auto_ptr<TQFontMetrics> m_fontMetrics;
|
|
|
|
TQSize m_pageSize;
|
|
|
|
bool m_isStartAdded;
|
|
|
|
TIndex m_curParagraph;
|
|
|
|
bool m_isRendering;
|
|
|
|
TQTimer m_timer;
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|