filters

fstring.h

00001 /*
00002  * Copyright (c) 2002-2003 Nicolas HADACEK (hadacek@kde.org)
00003  *
00004  * This program is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2 of the License, or
00007  * (at your option) any later version.
00008 
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013 
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018  */
00019 
00020 #ifndef FSTRING_H
00021 #define FSTRING_H
00022 
00023 #include "TextOutputDev.h"
00024 
00025 #include <qvaluevector.h>
00026 
00027 #include "misc.h"
00028 
00029 
00030 namespace PDFImport
00031 {
00032 
00033 class Data;
00034 
00035 //-----------------------------------------------------------------------------
00036 class Tabulator
00037 {
00038 public:
00039     enum Alignment { Left = 0, Center, Right, Character };
00040     enum Filling { Blank = 0, Dots, Line, Dash, DashDot, DashDotDot };
00041 
00042     Tabulator() : alignment(Left) {}
00043 
00044     QDomElement createElement(Data &data) const;
00045 
00046 public:
00047     double    pos;
00048     Alignment alignment;
00049     Filling   filling;
00050     QChar     alignmentChar;
00051 };
00052 
00053 inline bool operator <(const Tabulator &t1, const Tabulator &t2)
00054 { return t1.pos<t2.pos; }
00055 
00056 //-----------------------------------------------------------------------------
00057 class Block
00058 {
00059 public:
00060     Block() : link(0) {}
00061 
00062 public:
00063     Font        font;
00064     const Link *link;
00065     QString     text;
00066 };
00067 
00068 //-----------------------------------------------------------------------------
00069 enum Align { AlignLeft, AlignRight, AlignCenter, AlignBlock };
00070 
00071 class Paragraph
00072 {
00073 public:
00074     Paragraph();
00075     Paragraph(TextLine *first, uint nbLines);
00076 
00077     const DRect &rect() const { return _rect; }
00078 
00079     bool hasOneLine() const { return _lines.count()==1; }
00080     const QValueList<TextLine *> lines() const { return _lines; }
00081     bool isFirst(const TextLine *line) const { return line==_lines.first();}
00082     bool isSecond(const TextLine* line) const
00083         { return (_lines.count()>1 && line==_lines.first()->next); }
00084     bool isLast(const TextLine *line) const { return line==_lines.last(); }
00085 
00086     int findTab(double xMin, const TextLine *) const;
00087     uint findNbTabs(uint i, double prevXMax) const;
00088     int charFromEnd(uint dec, uint &blockIndex) const;
00089 
00090 public:
00091     ParagraphType type;
00092     uint          frameIndex;
00093     double        firstIndent, leftIndent, offset;
00094     Align         align;
00095     QValueVector<Tabulator> tabs;
00096     QValueList<Block>       blocks;
00097 
00098 private:
00099     QValueList<TextLine *> _lines;
00100     DRect                  _rect;
00101 };
00102 
00103 //-----------------------------------------------------------------------------
00104 class String : public TextString
00105 {
00106 public:
00107     String(GfxState *state, double x0, double y0,
00108            double fontSize, uint frameIndex);
00109 
00110     uint frameIndex() const { return _frameIndex; }
00111     const Font &font() const { return _font; }
00112     DRect rect() const { return DRect(xMin, xMax, yMin, yMax); }
00113     bool checkCombination(TextString *s);
00114 
00115 public:
00116     const Link *link;
00117 
00118 private:
00119     void addChar(GfxState *state, double x, double y,
00120                  double dx, double dy, Unicode u);
00121 
00122 private:
00123     Font _font;
00124     uint _frameIndex;
00125 };
00126 
00127 } // namespace
00128 
00129 #endif
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