Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdetoys@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 172 insertions, 0 deletions

diff --git a/kworldwatch/maploader.cpp b/kworldwatch/maploader.cpp
new file mode 100644
index 0000000..236abd3
--- /dev/null
+++ b/kworldwatch/maploader.cpp
@@ -0,0 +1,172 @@
+/*
+**
+** Copyright (C) 1998-2001 by Matthias H�lzer-Kl�pfel <[email protected]>
+**	Maintainence has ceased - send questions to [email protected].
+**
+*/
+
+/*
+** 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 [email protected]
+*/
+#include <time.h>
+
+#include <qvaluelist.h>
+#include <qdir.h>
+#include <qimage.h>
+#include <qpainter.h>
+#include <qtl.h>
+#include <qstringlist.h>
+
+
+#include <kglobal.h>
+#include <kstandarddirs.h>
+#include <kdesktopfile.h>
+#include <kimageeffect.h>
+
+
+#include "astro.h"
+#include "maploader.h"
+
+
+QPtrList<MapTheme> MapLoader::themes()
+{
+  QPtrList<MapTheme> result;
+
+  QStringList files = KGlobal::dirs()->findAllResources("data", "kworldclock/maps/*/*.desktop");
+  for (QStringList::Iterator it=files.begin(); it != files.end(); ++it)
+    {
+      KDesktopFile conf(*it);
+      conf.setGroup("Theme");
+      result.append(new MapTheme(conf.readName(), conf.readEntry("Theme")));
+    }
+
+  return result;
+}
+
+
+QStringList MapLoader::maps(const QString &theme)
+{
+  return KGlobal::dirs()->findAllResources("data", QString("kworldclock/maps/%1/*.jpg").arg(theme));
+}
+
+
+void MapLoader::load(unsigned int width, const QString &theme, unsigned int height, float opacity)
+{
+  // find the maps available
+  QValueList<uint> sizes;
+  QStringList files = maps(theme);
+  for (uint i=0; i<files.count(); ++i)
+    {
+      QString f = files[i];
+      int pos = f.findRev("/");
+      if (pos >= 0)
+        f = f.mid(pos+1);
+      pos = f.findRev(".");
+      if (pos >= 0)
+        f = f.left(pos);
+      sizes.append(f.toInt());
+    }
+  qHeapSort(sizes);
+
+  // find the closest (bigger) size
+  uint size=0;
+  for (uint i=0; i<sizes.count(); ++i)
+    {
+      size = sizes[i];
+      if (size >= width)
+	break;
+    }
+  
+  QImage image;
+  if (size == 0)
+    {
+      image = QImage(locate("data", "kworldclock/maps/depths/800.jpg"));
+      size = 800;
+    }
+  else  
+    image = QImage(locate("data", QString("kworldclock/maps/%1/%2.jpg").arg(theme).arg(size)));
+
+  if (height == 0)
+    height = width/2;
+
+  if ((image.width() != (int)width) || (image.height() != (int)height))
+    image = image.smoothScale(width, height);
+
+  // convert to light map
+  _light.convertFromImage(image);
+
+  // calculate dark map
+  _dark.convertFromImage(KImageEffect::blend(Qt::black, image, opacity));
+}
+
+
+QBitmap MapLoader::darkMask(int width, int height)
+{
+  time_t t;
+  struct tm *tmp;
+  double jt, sunra, sundec, sunrv, sunlong;
+  short *wtab;
+
+  QBitmap illuMask(width, height);
+ 
+  // calculate the position of the sun
+  t = time(NULL);
+  tmp = gmtime(&t);
+  jt = jtime(tmp);
+  sunpos(jt,FALSE, &sunra, &sundec, &sunrv, &sunlong);
+
+  int sec = tmp->tm_hour*60*60 + tmp->tm_min*60 + tmp->tm_sec;
+  int gmt_position = width * sec / 86400; // note: greenwich is in the middle!
+
+  // calculate the illuminated area
+  wtab = new short[height];
+  projillum(wtab,width,height,sundec);
+ 
+  // draw illumination
+  illuMask.fill(Qt::black);
+  QPainter p;
+  p.begin(&illuMask);
+ 
+  int start, stop;
+  int middle = width - gmt_position;
+  for (int y=0; y<height; y++)
+    if (wtab[y]>0)
+      {
+	start = middle - wtab[y];
+	stop = middle + wtab[y];
+	if (start < 0)
+	  {
+	    p.drawLine(0,y,stop,y);
+	    p.drawLine(width+start,y,width,y);
+	  }
+	else
+	  if (stop > width)
+	    {
+	      p.drawLine(start,y,width,y);
+	      p.drawLine(0,y,stop-width,y);
+	    }
+	  else
+	    p.drawLine(start,y,stop,y);
+      }
+  p.end();
+  delete [] wtab;
+  return illuMask;
+}
+