Kate

katefont.h

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2002 Christian Couder <christian@kdevelop.org>
00003    Copyright (C) 2001 Christoph Cullmann <cullmann@kde.org>
00004    Copyright (C) 2001 Joseph Wenninger <jowenn@kde.org>
00005    Copyright (C) 1999 Jochen Wilhelmy <digisnap@cs.tu-berlin.de>
00006 
00007    This library is free software; you can redistribute it and/or
00008    modify it under the terms of the GNU Library General Public
00009    License version 2 as published by the Free Software Foundation.
00010 
00011    This library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Library General Public License for more details.
00015 
00016    You should have received a copy of the GNU Library General Public License
00017    along with this library; see the file COPYING.LIB.  If not, write to
00018    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019    Boston, MA 02110-1301, USA.
00020 */
00021 
00022 #ifndef __kate_font_h__
00023 #define __kate_font_h__
00024 
00025 #include <qfont.h>
00026 #include <qfontmetrics.h>
00027 
00028 //
00029 // KateFontMetrics implementation
00030 //
00031 
00032 class KateFontMetrics : public QFontMetrics
00033 {
00034   public:
00035     KateFontMetrics(const QFont& f);
00036     ~KateFontMetrics();
00037 
00038     int width(QChar c);
00039 
00040     int width(QString s) { return QFontMetrics::width(s); }
00041 
00042   private:
00043     short *createRow (short *wa, uchar row);
00044 
00045   private:
00046     short *warray[256];
00047 };
00048 
00049 //
00050 // KateFontStruct definition
00051 //
00052 
00053 class KateFontStruct
00054 {
00055   public:
00056     KateFontStruct();
00057     ~KateFontStruct();
00058   
00059     void setFont(const QFont & font);
00060       
00061   private:
00062     void updateFontData ();
00063 
00064   public:
00065     inline int width (const QString& text, int col, bool bold, bool italic, int tabWidth)
00066     {
00067       if (text[col] == QChar('\t'))
00068         return tabWidth * myFontMetrics.width(' ');
00069     
00070       return (bold) ?
00071         ( (italic) ?
00072           myFontMetricsBI.charWidth(text, col) :
00073           myFontMetricsBold.charWidth(text, col) ) :
00074         ( (italic) ?
00075           myFontMetricsItalic.charWidth(text, col) :
00076           myFontMetrics.charWidth(text, col) );
00077     }
00078     
00079     inline int width (const QChar& c, bool bold, bool italic, int tabWidth)
00080     {
00081       if (c == QChar('\t'))
00082         return tabWidth * myFontMetrics.width(' ');
00083     
00084       return (bold) ?
00085         ( (italic) ?
00086           myFontMetricsBI.width(c) :
00087           myFontMetricsBold.width(c) ) :
00088         ( (italic) ?
00089           myFontMetricsItalic.width(c) :
00090           myFontMetrics.width(c) );
00091     }
00092     
00093     inline const QFont& font(bool bold, bool italic) const
00094     {
00095       return (bold) ?
00096         ( (italic) ? myFontBI : myFontBold ) :
00097         ( (italic) ? myFontItalic : myFont );
00098     }
00099 
00100     inline bool fixedPitch() const { return m_fixedPitch; }
00101     
00102   public:
00103     QFont myFont, myFontBold, myFontItalic, myFontBI;
00104 
00105     KateFontMetrics myFontMetrics, myFontMetricsBold, myFontMetricsItalic, myFontMetricsBI;
00106 
00107     int fontHeight;
00108     int fontAscent;
00109 
00110   private:
00111     bool m_fixedPitch;
00112 };
00113 
00114 #endif
Kate

katefont.h

Kate

API Reference
