summaryrefslogtreecommitdiffstats
path: root/kworldwatch/flags.cpp
blob: dd60330dfa5eb05e8d2dbd1eaf63e1136548968e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/*
**
** 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 <limits.h>


#include <kstandarddirs.h>


#include "flags.h"


FlagList::FlagList()
{
  _flags.setAutoDelete(true);

  _flagPixmap = QPixmap(locate("data", "kworldclock/pics/flag.png"));
  _flagMask = QPixmap(locate("data", "kworldclock/pics/flag-mask.xpm"), 0, QPixmap::ThresholdDither);
  _flagMask.setMask(_flagMask.createHeuristicMask());
}


void FlagList::addFlag(Flag *f)
{
  _flags.append(f);
}


QPoint FlagList::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 FlagList::paint(QPainter *p, int width, int height, int offset)
{
  p->setPen(Qt::black);
 
  QPtrListIterator<Flag> it(_flags);
  for ( ; it.current(); ++it)
    {
      QPoint pos = getPosition(it.current()->latitude(), it.current()->longitude(), width, height, offset);

      p->setPen(it.current()->color());
      p->setBrush(it.current()->color());

      if (width > 100)
	{
          pos -= QPoint(5,15);

	  p->drawPixmap(pos,_flagMask);
	  p->drawPixmap(pos,_flagPixmap);
	}
      else
 	p->drawEllipse(pos.x()-1, pos.y()-1, 3, 3);
    }
}                                                                         


void FlagList::removeNearestFlag(const QPoint &target, int w, int h, int offset)
{
  Flag *flag = 0;

  QPoint diff;

  int dist = INT_MAX;
  QPtrListIterator<Flag> it(_flags);
  for ( ; it.current(); ++it)
    {
      diff = getPosition(it.current()->latitude(), it.current()->longitude(), w, h, offset);
      diff -= target;
      if (diff.manhattanLength() < dist)
	{
	  dist = diff.manhattanLength();
	  flag = it.current();
	}
    }

  if (flag)
    _flags.remove(flag);
}

void FlagList::removeAllFlags()
{
  _flags.clear();
}

void FlagList::save(KConfig *config)
{
  config->writeEntry("Flags", _flags.count());
  
  QPtrListIterator<Flag> it(_flags);
  int cnt=0;
  for ( ; it.current(); ++it)
    {
      config->writeEntry(QString("Flag_%1_Color").arg(cnt), it.current()->color());
      config->writeEntry(QString("Flag_%1_Latitude").arg(cnt), it.current()->latitude());
      config->writeEntry(QString("Flag_%1_Longitude").arg(cnt), it.current()->longitude());
      cnt++;
    }
}


void FlagList::load(KConfig *config)
{
  _flags.clear(); 
  int num = config->readNumEntry("Flags", 0);

  for (int i=0; i<num; ++i)
    {
      addFlag(new Flag(config->readDoubleNumEntry(QString("Flag_%1_Longitude").arg(i)),
		       config->readDoubleNumEntry(QString("Flag_%1_Latitude").arg(i)),
		       config->readColorEntry(QString("Flag_%1_Color").arg(i))));
    }
}