KDE 4.2 API Reference UNNAMED_READER/corelibrary
length.h
Go to the documentation of this file.00001 /*************************************************************************** 00002 * Copyright (C) 2005-2006 by Stefan Kebekus <kebekus@kde.org> * 00003 * Copyright (C) 2006 by Wilfried Huss * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU General Public License as published by * 00007 * the Free Software Foundation; either version 2 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU General Public License * 00016 * along with this program; if not, write to the * 00017 * Free Software Foundation, Inc., * 00018 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * 00019 ***************************************************************************/ 00020 00021 00022 #ifndef _length_h_ 00023 #define _length_h_ 00024 00025 #include <cmath> 00026 #include <QString> 00027 00028 #define mm_per_cm 10.0 00029 #define mm_per_m 1000.0 00030 #define mm_per_inch 25.4 00031 #define mm_per_TeXPoint (2540.0/7227.0) 00032 #define mm_per_bigPoint (25.4/72.0) 00033 #define mm_per_pica (25.4/6.0) 00034 #define mm_per_didot (25.4*0.0148) 00035 #define mm_per_cicero (25.4*0.178) 00036 #define mm_per_scaledPoint (25.4/(72.27 * 65536.0)) 00037 00038 namespace UNNAMED_READER { 00039 00055 class Length 00056 { 00057 public: 00059 Length() {length_in_mm = 0;} 00060 00062 void setLength_in_mm(double l) {length_in_mm = l;} 00063 00065 void setLength_in_cm(double l) {length_in_mm = l*mm_per_cm;} 00066 00068 void setLength_in_m(double l) {length_in_mm = l*mm_per_m;} 00069 00071 void setLength_in_inch(double l) {length_in_mm = l*mm_per_inch;} 00072 00074 void setLength_in_TeXPoints(double l) {length_in_mm = l*mm_per_TeXPoint;} 00075 00077 void setLength_in_bigPoints(double l) {length_in_mm = l*mm_per_bigPoint;} 00078 00080 void setLength_in_pica(double l) {length_in_mm = l*mm_per_pica;} 00081 00083 void setLength_in_didot(double l) {length_in_mm = l*mm_per_didot;} 00084 00086 void setLength_in_cicero(double l) {length_in_mm = l*mm_per_cicero;} 00087 00089 void setLength_in_scaledPoints(double l) {length_in_mm = l*mm_per_scaledPoint;} 00090 00093 void setLength_in_pixel(int l, double res) { setLength_in_inch(l / res); } 00094 00096 double getLength_in_mm() const {return length_in_mm;} 00097 00099 double getLength_in_cm() const {return length_in_mm/mm_per_cm;} 00100 00102 double getLength_in_m() const {return length_in_mm/mm_per_m;} 00103 00105 double getLength_in_inch() const {return length_in_mm/mm_per_inch;} 00106 00108 double getLength_in_TeXPoints() const {return length_in_mm/mm_per_TeXPoint;} 00109 00111 double getLength_in_bigPoints() const {return length_in_mm/mm_per_bigPoint;} 00112 00114 double getLength_in_pica() const {return length_in_mm/mm_per_pica;} 00115 00117 double getLength_in_didot() const {return length_in_mm/mm_per_didot;} 00118 00120 double getLength_in_cicero() const {return length_in_mm/mm_per_cicero;} 00121 00123 double getLength_in_scaledPoints() const {return length_in_mm/mm_per_scaledPoint;} 00124 00127 int getLength_in_pixel(double res) { return int(getLength_in_inch() * res); } 00128 00130 bool isNearlyEqual(const Length &o) const {return fabs(length_in_mm-o.getLength_in_mm()) <= 2.0;} 00131 00133 bool operator > (const Length &o) const {return (length_in_mm > o.getLength_in_mm());} 00134 00136 bool operator < (const Length &o) const {return (length_in_mm < o.getLength_in_mm());} 00137 00139 bool operator >= (const Length &o) const {return (length_in_mm >= o.getLength_in_mm());} 00140 00142 bool operator <= (const Length &o) const {return (length_in_mm <= o.getLength_in_mm());} 00143 00152 double operator / (const Length &o) const {return (length_in_mm/o.getLength_in_mm());} 00153 00158 Length operator + (const Length &o) const {Length r; r.length_in_mm = length_in_mm + o.length_in_mm; return r; } 00159 00164 Length operator - (const Length &o) const {Length r; r.length_in_mm = length_in_mm - o.length_in_mm; return r; } 00165 00174 Length operator / (const double l) const {Length r; r.length_in_mm = length_in_mm/l; return r; } 00175 00180 Length operator * (const double l) const {Length r; r.length_in_mm = length_in_mm*l; return r; } 00181 00196 static float convertToMM(const QString &distance, bool *ok=0); 00197 00199 operator QString() const { return QString::number(length_in_mm, 'f', 2)+"mm"; } 00200 00201 private: 00203 double length_in_mm; 00204 }; 00205 00206 00207 } // namespace UNNAMED_READER 00208 00209 #undef mm_per_cm 00210 #undef mm_per_m 00211 #undef mm_per_inch 00212 #undef mm_per_TeXPoint 00213 #undef mm_per_bigPoint 00214 #undef mm_per_pica 00215 #undef mm_per_didot 00216 #undef mm_per_cicero 00217 #undef mm_per_scaledPoint 00218 00219 #endif
