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-rw-r--r--kworldwatch/cities.cpp208
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diff --git a/kworldwatch/cities.cpp b/kworldwatch/cities.cpp
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+++ b/kworldwatch/cities.cpp
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+/*
+**
+** Copyright (C) 1998-2001 by Matthias Hölzer-Klüpfel <hoelzer@kde.org>
+** Maintainence has ceased - send questions to kde-devel@kde.org.
+**
+*/
+
+/*
+** 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 in a file called COPYING; if not, write to
+** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+** MA 02110-1301, USA.
+*/
+
+/*
+** Bug reports and questions can be sent to kde-devel@kde.org
+*/
+#include <qfile.h>
+#include <qtextstream.h>
+#include <qregexp.h>
+#include <qpainter.h>
+
+
+#include <kglobal.h>
+#include <kstandarddirs.h>
+
+
+#include "cities.h"
+
+
+CityList::CityList()
+{
+ readCityLists();
+}
+
+CityList::~CityList()
+{
+ _cities.setAutoDelete(true);
+ _cities.clear();
+}
+
+void CityList::readCityLists()
+{
+ QStringList lists = KGlobal::dirs()->findAllResources("data", "kworldclock/*.tab");
+ for (QStringList::Iterator it = lists.begin(); it != lists.end(); ++it)
+ readCityList(*it);
+}
+
+
+double coordinate(QString c)
+{
+ int neg;
+ int d=0, m=0, s=0;
+
+ neg = c.left(1) == "-";
+ c.remove(0,1);
+
+ switch (c.length())
+ {
+ case 4:
+ d = c.left(2).toInt();
+ m = c.mid(2).toInt();
+ break;
+ case 5:
+ d = c.left(3).toInt();
+ m = c.mid(3).toInt();
+ break;
+ case 6:
+ d = c.left(2).toInt();
+ m = c.mid(2,2).toInt();
+ s = c.right(2).toInt();
+ break;
+ case 7:
+ d = c.left(3).toInt();
+ m = c.mid(3,2).toInt();
+ s = c.right(2).toInt();
+ break;
+ default:
+ break;
+ }
+
+ if (neg)
+ return - (d + m/60.0 + s/3600.0);
+ else
+ return d + m/60.0 + s/3600.0;
+}
+
+
+void CityList::readCityList(const QString &fname)
+{
+ QFile f(fname);
+
+ if (f.open(IO_ReadOnly))
+ {
+ QTextStream is(&f);
+
+ QString line;
+ QStringList tags;
+ QRegExp coord("[+-]\\d+[+-]\\d+");
+ QRegExp name("[^\\s]+/[^\\s]+");
+ int pos;
+ while (!is.eof())
+ {
+ line = is.readLine().stripWhiteSpace();
+ if (line.isEmpty() || line.left(1) == "#")
+ continue;
+
+ QString c, n;
+
+ pos = coord.search(line, 0);
+ if (pos >= 0)
+ c = line.mid(pos, coord.matchedLength());
+
+ pos = name.search(line, pos);
+ if (pos > 0)
+ n = line.mid(pos, name.matchedLength()).stripWhiteSpace();
+
+ if (!c.isEmpty() && !n.isEmpty())
+ {
+ double la, lo;
+ pos = c.find("+", 1);
+ if (pos < 0)
+ pos = c.find("-", 1);
+ if (pos > 0)
+ {
+ la = coordinate(c.left(pos));
+ lo = coordinate(c.mid(pos));
+ _cities.append(new City(n.latin1(), la, lo));
+ }
+ }
+ }
+
+ f.close();
+ }
+}
+
+
+QPoint CityList::getPosition(double la, double lo, int w, int h, int offset)
+{
+ int x = (int)((double)w * (180.0 + lo) / 360.0);
+ int y = (int)((double)h * (90.0 - la) / 180.0);
+ x = (x + offset + w/2) % w;
+
+ return QPoint(x,y);
+}
+
+
+void CityList::paint(QPainter *p, int width, int height, int offset)
+{
+ p->setPen(Qt::black);
+
+ QPtrListIterator<City> it(_cities);
+ for ( ; it.current(); ++it)
+ {
+ QPoint pos = getPosition(it.current()->latitude(), it.current()->longitude(), width, height, offset);
+
+ if (width > 100)
+ p->drawEllipse(pos.x(), pos.y(), 3,3);
+ else
+ p->drawPoint(pos);
+ }
+}
+
+
+City *CityList::getNearestCity(int w, int h, int offset, int x, int y, QPoint &where)
+{
+ City *result = 0;
+ double dist = 1.0e10;
+
+ QPtrListIterator<City> it(_cities);
+ for ( ; it.current(); ++it)
+ {
+ QPoint pos = getPosition(it.current()->latitude(), it.current()->longitude(), w, h, offset);
+
+ double d = (pos.x()-x)*(pos.x()-x) + (pos.y()-y)*(pos.y()-y);
+ if (d < dist)
+ {
+ dist = d;
+ where = pos;
+ result = it.current();
+ }
+ }
+
+ return result;
+}
+
+
+QStringList CityList::timezones()
+{
+ QStringList r;
+
+ QPtrListIterator<City> it(_cities);
+ for ( ; it.current(); ++it)
+ r << it.current()->name();
+ r.sort();
+
+ return r;
+}