WebSVN – public – Diff – /sportwatcher/trunk/src/wmsselectorwidget.cpp

 #include <QImage>
 #include <QtNetwork>
 #include <QListWidget>
 #include <QPainter>
 #include <QCheckBox>
+#include <QSlider>
 #include <KStandardDirs>
 #include <KConfig>
 #include <KLocale>
 #include <KMessageBox>
 #include <KGlobalSettings>
 #include "wmscapabilitieswidget.h"
 // The capital cities from all countries of the world
 // Source: Wikipedia, Google
 CITIES Cities[] = {
+	{ " - - - - - - -", 0.0, 0.0 },
 	{ "Abidjan", 5.3363, -4.0277 },
 	{ "Abu Dhabi", 24.4758, 54.3714 },
 	{ "Abuja", 9.0578, 7.4892 },
 	{ "Accora", 5.5555, -0.196 },
 	{ "Addis Abeba", 9.0164, 38.7579 },
 	{ "Belmopan", 17.2617, -88.7785 },
 	{ "Berlin", 52.5234, 13.4105 },
 	{ "Bern", 46.9479, 7.4479 },
 	{ "Bratislava", 48.1483, 17.1068 },
 	{ "Bridgetown", 13.0935, -59.6106 },
-	{ "Brüssel", 50.8462, 4.3545 },
+	{ "Bruessel", 50.8462, 4.3545 },
 	{ "Budapest", 47.4984, 19.0403 },
 	{ "Buenos Aires", -34.6084, -58.3733 },
 	{ "Bukarest", 44.4304, 26.1225 },
 	{ "Den Haag", 52.0782, 4.3134 },
 	{ "Dublin", 53.3441, -6.2677 },
 	{ "Wien", 48.2091, 16.3727 },
 	{ "Zagreb", 45.8149, 15.9784 },
 	{ "", 0.0, 0.0 }
 };
+ZOOM zoom[] = {
+	{ 0.014108, 0.003554 },
+	{ 0.028216, 0.007108 },
+	{ 0.056432, 0.014216 },
+	{ 0.112864, 0.028432 },
+	{ 0.225728, 0.056864 },
+	{ 0.451456, 0.113728 },
+	{ 0.902912, 0.227456 },
+	{ 1.805824, 0.454912 },
+	{ 3.611648, 0.909824 },
+	{ 7.223296, 1.819648 }
+};
 wmsSelectorWidget::wmsSelectorWidget (QWidget* parent, Qt::WFlags fl)
 		: QDialog (parent, fl), Ui::wmsSelectorWidgetBase()
+{
 	// Initialize some variables
 	http = 0;
 	httpRequestAborted = false;
 	progressDialog = 0;
 	id = 0;
 	Layer = 0;
 	firstLayer = 0;
+	zLevel = 0;
 	initializeParser();
 	// Initialize the GUI elements
 	setupUi (this);
 	// Initialize the environment
 	urlWMS->setMode(KFile::File | KFile::ExistingOnly);
 	urlWMS->setUrl (ic.readEntry("ServerURL", "http://onearth.jpl.nasa.gov/wms.cgi"));
 	Data = ic.readEntry("Data", QDir::home().absolutePath() + "/.sportwatcher");
 	MAP = ic.readEntry("MAP", QDir::home().absolutePath() + "/.sportwatcher/track.wms");
 	file.setFileName(Data + "/capabilities.xml");	// File to save WMS capabilities
 	edBands->setValue(ic.readEntry("Bands", 3));
+	Layers = ic.readEntry("Layer", QString("modis,global_mosaic"));
 	StyleCommas = true;
 	cbStyles->setChecked(StyleCommas);
 	// Fill the cities combo box
 	int i = 0;
 	connect(progressDialog, SIGNAL(cancelClicked()), this, SLOT(cancelDownload()));
 #ifndef QT_NO_OPENSSL
 	connect(http, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrors(const QList<QSslError> &)));
 #endif
 	getCapabilities();
+	Init = true;
+}
 wmsSelectorWidget::~wmsSelectorWidget()
+{
 	if (file.exists())
 void wmsSelectorWidget::slotStyles(bool mode)
+{
 	StyleCommas = mode;
+}
+void wmsSelectorWidget::slotSliderPressed()
+{
+	sliderPressed = true;
+}
+void wmsSelectorWidget::slotSliderReleased()
+{
+double minx, miny, maxx, maxy;
+	sliderPressed = false;
+	if (!sliderPressed && actionLayer->selectedListWidget()->count() > 0)
+	{
+	   setDimension(minx, miny, maxx, maxy, 0);
+	   grabPicture(minx, miny, maxx, maxy);
+	}
+}
+void wmsSelectorWidget::slotValueChanged(int val)
+{
+double minx, miny, maxx, maxy;
+	zLevel = val;
+	if (!sliderPressed && actionLayer->selectedListWidget()->count() > 0)
+	{
+	   setDimension(minx, miny, maxx, maxy, 0);
+	   grabPicture(minx, miny, maxx, maxy);
+	}
+}
 /*
  * This functions try to get a small example picture from the WMS server
  */
 bool wmsSelectorWidget::grabPicture(double minx, double miny, double maxx, double maxy)
+{
 bool Fgeo = false;
 QPainter paint;
 	QApplication::setOverrideCursor (QCursor(Qt::WaitCursor));
 	width = lbPreview->width();
-	height = lbPreview->height() - 2;
+	height = lbPreview->height() - 6;	// necessary to prevent growing of dialog window
 	nXSize = nYSize = 0;
 	if (!writeWMSTag(minx, miny, maxx, maxy, width, height))
+	{
 	   QApplication::restoreOverrideCursor();
+	}
 	return true;
+}
+QString wmsSelectorWidget::getLayers()
+{
+QString la;
+QListWidget *lw = actionLayer->selectedListWidget();
+	for (int i = 0; i < lw->count(); i++)
+	{
+	   QListWidgetItem *item = lw->item(i);
+	   la += item->text();
+	   if (i < lw->count())
+	      la += ",";
+	}
+	return la;
+}
+QString wmsSelectorWidget::getStyles()
+{
+QString la;
+QListWidget *lw = actionLayer->selectedListWidget();
+int anz = lw->count();
+	if (cbStyles->isChecked() && anz > 1)
+	   la.fill(',', anz - 1);
+	return la;
+}
 void wmsSelectorWidget::cancelDownload()
+{
 	httpRequestAborted = true;
 	http->abort();
+}
 	   KMessageBox::information(this, i18n("Download failed: %1.").arg(http->errorString()), i18n("WMS capabilities"));
+	}
 	else
+	{
 	   parseWMS();
+	   if (Init)
+	   {
+	      // Set the already selected layers to the selected box
+	      // This will be done only, if the box with the available layers
+	      // is not empty. Otherwise we've to assume, that there was an
+	      // error getting the capabilities of the server.
+	      if (actionLayer->availableListWidget()->count() > 0)
+	      {
+	      QListWidget *item = actionLayer->selectedListWidget();
+	      QListWidget *av = actionLayer->availableListWidget();
+	      QStringList laList = Layers.split(',');
+		 for (int i = 0; i < laList.size(); i++)
+		 {
+		    QList<QListWidgetItem*> qlwi = av->findItems(laList.at(i), Qt::MatchExactly);
+		    if (qlwi.size() == 1)
+		    {
+		       item->addItem(laList.at(i));
+		       av->takeItem(av->row(qlwi.at(0)));
+		    }
+		 }
+	      }
+	      Init = false;
+	   }
+	}
+}
 void wmsSelectorWidget::readResponseHeader(const QHttpResponseHeader &responseHeader)
+{
 #if defined HAVE_GDAL
 QFile fl(MAP);
 QString xml, s, srs, crs, styles, bSize, ext;
 QDir dir = QDir::home();
 QString path = dir.absolutePath();
-int item;
+//int item;
 double _llat, _llon, _rlat, _rlon;
 	if (!fl.open(QIODevice::ReadWrite | QIODevice::Truncate))
+	{
 	   KMessageBox::error (this, i18n("Error opening or creating the WMS tag file!\nPlease check file name and/or permissions."));
 	KConfig cfg (QString("sportwatcher.rc"), KConfig::SimpleConfig);
 	KConfigGroup wms (&cfg, "WMS");
 	xml = "<GDAL_WMS>\n";
 	xml += "   <Service name=\"WMS\">\n";
+	if (!WMSVersion.isEmpty())
-	xml += "      <Version>" + WMSVersion + "</Version>\n";
+	   xml += "      <Version>" + WMSVersion + "</Version>\n";
+	else
+	   xml += "      <Version>1.1.1</Version>\n";
 	xml += "      <ServerURL>" + urlWMS->url().url() + "?</serverURL>\n";
 	_llon = llon;
 	_llat = llat;
 	_rlon = rlon;
 	_rlat = rlat;
 	xml += "      <SizeY>" + s + "</SizeY>\n";
 	xml += "   </DataWindow>\n";
 	xml += "   <Projection>" + srs + "</Projection>\n";
 	xml += "   <BandsCount>" + QString("%1").arg(edBands->value()) + "</BandsCount>\n";
-	item = wms.readEntry("Tile", 2);
+/*	item = wms.readEntry("Tile", 2);
 	switch (item)
+	{
 	   case 0: bSize = QString("64"); break;
 	   case 1: bSize = QString("128"); break;
 	   case 2: bSize = QString("256"); break;
 	   case 3: bSize = QString("512"); break;
 	   case 4: bSize = QString("1024"); break;
 	   default: bSize = QString("256");
+	}
+*/
+	bSize = QString("256");
 	xml += "   <BlockSizeX>" + bSize + "</BlockSizeX>\n";
 	xml += "   <BlockSizeY>" + bSize + "</BlockSizeY>\n";
 	xml += "   <OverviewCount>" + wms.readEntry("Overview", QString("10")) + "</OverviewCount>\n";
 	xml += "   <Cache>\n";
 	xml += "      <Path>" + path + "/.gdalwmscache" + "</Path>\n";
 	return true;
+}
 void wmsSelectorWidget::setDimension(double &minx, double &miny, double &maxx, double &maxy, QListWidgetItem *item = 0)
+{
-double cx, cy;
+double cx, cy, levX, levY;
-/*LAYER *akt;
+LAYER *akt;
-	if (!firstLayer)
-	   return;
-//std::cout << "minx: " << firstLayer->LatLon.minx << "miny: " << firstLayer->LatLon.miny << "maxx: " << firstLayer->LatLon.maxx << "maxy: " << firstLayer->LatLon.maxy << std::endl;
 	cx = cy = 0.0;
 	akt = firstLayer;
-	while (akt)
+	if (zLevel >= 0 && zLevel < 10)
+	{
-	   cx = akt->LatLon.minx + (akt->LatLon.maxx - akt->LatLon.minx) / 2.0;
-	   cy = akt->LatLon.miny + (akt->LatLon.maxy - akt->LatLon.miny) / 2.0;
-	   if ((cx != 0.0 || cy != 0.0) && !item)
-	      break;
+	   levX = zoom[zLevel].x;
-	   if (item && item->text() == akt->Name && cx != 0.0 && cy != 0.0)
-	      break;
-	   akt = akt->next;
+	   levY = zoom[zLevel].y;
+	}
+	else
+	{
-	if (cx == 0.0 && cy == 0.0)
+	   levX = zoom[0].x;
-	{	// Schloss Schönbrunn in Vienna
-	   cx = 16.298223 + (0.014108 / 2.0);
-	   cy = 48.177103 + (0.003554 / 2.0);
+	   levY = zoom[0].y;
+	}
-*/
 	cx = edLat->value();
 	cy = edLon->value();
-	minx = cx - (0.014108 / 2.0);
+	if (cx == 0.0 && cy == 0.0)
+	{
+	   while (akt)
+	   {
+	      cx = akt->LatLon.minx + (akt->LatLon.maxx - akt->LatLon.minx) / 2.0;
+	      cy = akt->LatLon.miny + (akt->LatLon.maxy - akt->LatLon.miny) / 2.0;
+	      if ((cx != 0.0 || cy != 0.0) && !item)
+	         break;
+	      if (item && item->text() == akt->Name && cx != 0.0 && cy != 0.0)
+	         break;
+	      akt = akt->next;
+	   }
-	maxx = cx + (0.014108 / 2.0);
+	   if (cx == 0.0 && cy == 0.0)
+	   {	// Schloss Schoenbrunn in Vienna
-	miny = cy + (0.003554 / 2.0);
+	      cx = 16.298223 + (0.014108 / 2.0);
-	maxy = cy - (0.003554 / 2.0);
+	      cy = 48.177103 + (0.003554 / 2.0);
+	   }
+	   edLat->setValue(cx);
+	   edLon->setValue(cy);
+	}
-//	edLat->setValue(cx);
+	minx = cx - (levX / 2.0);
+	maxx = cx + (levX / 2.0);
+	miny = cy + (levY / 2.0);
-//	edLon->setValue(cy);
+	maxy = cy - (levY / 2.0);
+}
 #include "wmsselectorwidget.moc"

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(root)/sportwatcher/trunk/src/wmsselectorwidget.cpp – Rev 283 → 284