--- /dev/null
+/*
+ * GPSData for Maemo.
+ * Copyright (C) 2011 Roman Moravcik
+ *
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <QtGui>
+
+#include "satelliteview.h"
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+void SatelliteView::updateWidget(const QList<QGeoSatelliteInfo> &satellites, bool inUseList)
+{
+ if (inUseList)
+ m_satellitesInUse = satellites;
+ else
+ m_satellitesInView = satellites;
+
+ update();
+}
+
+void SatelliteView::paintEvent(QPaintEvent * /* event */)
+{
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+
+ double widget_width = 0;
+ double widget_height = 0;
+ double widget_x = 0;
+ double widget_y = 0;
+
+ if (rect().width() < rect().height()) {
+ /* Portrait orientation */
+ widget_width = rect().width() - (2 * m_margin);
+ widget_height = widget_width;
+ widget_x = rect().x() + m_margin;
+ widget_y = rect().y() + (rect().height() - widget_height) / 2.0;
+ } else {
+ /* Landscape orientation */
+ widget_height = rect().height() - (2 * m_margin);
+ widget_width = widget_height;
+ widget_x = rect().x() + (rect().width() - widget_width) / 2.0;
+ widget_y = rect().y() + m_margin;
+ }
+ QRectF widgetArea(widget_x, widget_y, widget_width, widget_height);
+
+ /* Draw N/E/S/W labels */
+ paintLabels(painter, widgetArea);
+
+ int label_height = painter.fontMetrics().height();
+ int label_width = label_height;
+ double grid_x = widget_x + m_margin + label_width;
+ double grid_y = widget_y + m_margin + label_height;
+ double grid_width = widget_width - (2 * m_margin) - (2 * label_width);
+ double grid_height = widget_height - (2 * m_margin) - (2 * label_height);
+ QRectF gridArea(grid_x, grid_y, grid_width, grid_height);
+
+ /* Draw grid */
+ paintGrid(painter, gridArea);
+
+ /* Draw satellites in view */
+ for (int index = 1; index <= m_numOfSatellites; ++index) {
+ paintSatellite(painter, gridArea, index);
+ }
+}
+
+void SatelliteView::paintLabels(QPainter &painter, const QRectF &area)
+{
+ int label_height = painter.fontMetrics().height();
+ int label_width = label_height;
+
+ painter.setPen(QApplication::palette().color(QPalette::Text));
+
+ /* "North" label */
+ QRect northLabel(area.x(), area.y(), area.width(), label_height);
+ painter.drawText(northLabel, Qt::AlignCenter, tr("N"));
+
+ /* "South" label */
+ QRect southLabel(area.x(), area.y() + area.height() - label_height, area.width(), label_height);
+ painter.drawText(southLabel, Qt::AlignCenter, tr("S"));
+
+ /* "West" label */
+ QRect westLabel(area.x(), area.y(), label_width, area.height());
+ painter.drawText(westLabel, Qt::AlignCenter, tr("W"));
+
+ /* "East" label */
+ QRect eastLabel(area.x() + area.width() - label_width, area.y(), label_width, area.height());
+ painter.drawText(eastLabel, Qt::AlignCenter, tr("E"));
+}
+
+void SatelliteView::paintGrid(QPainter &painter, const QRectF &area)
+{
+ painter.setPen(m_graphGridColor);
+ for (int i = 0; i < 3; i++) {
+ double grid_width = area.width() * (3.0 - i) / 3.0;
+ double grid_height = area.height() * (3.0 - i) / 3.0;
+ double grid_x = area.x() + (area.width() * i / 6.0);
+ double grid_y = area.y() + (area.height() * i / 6.0);
+
+ QRectF gridArea(grid_x, grid_y, grid_width, grid_height);
+ painter.drawArc(gridArea, 0, 5760);
+ }
+
+ /* Grid */
+ painter.drawLine(area.x(), area.y() + area.height() / 2.0, area.x() + area.width(), area.y() + area.height() / 2.0);
+ painter.drawLine(area.x() + area.width() / 2.0, area.y(), area.x() + area.width() / 2.0, area.y() + area.height());
+
+}
+
+void SatelliteView::paintSatellite(QPainter &painter, const QRectF &area, int index)
+{
+ double center_x = area.x() + (double) area.width() / 2.0;
+ double center_y = area.y() + (double) area.height() / 2.0;
+
+ bool inUse = false;
+ int satelliteElevation = -1;
+ int satelliteAzimuth = 0;
+ for (int iter = 0; iter < m_satellitesInView.count(); iter++) {
+ if (m_satellitesInView.at(iter).prnNumber() == index) {
+ if (m_satellitesInView.at(iter).hasAttribute(QGeoSatelliteInfo::Elevation))
+ satelliteElevation = m_satellitesInView.at(iter).attribute(QGeoSatelliteInfo::Elevation);
+
+ if (m_satellitesInView.at(iter).hasAttribute(QGeoSatelliteInfo::Azimuth))
+ satelliteAzimuth = m_satellitesInView.at(iter).attribute(QGeoSatelliteInfo::Azimuth);
+ break;
+ }
+ }
+ for (int iter = 0; iter < m_satellitesInUse.count(); iter++) {
+ if (m_satellitesInUse.at(iter).prnNumber() == index) {
+ inUse = true;
+ break;
+ }
+ }
+
+ /* Display only visible satellites */
+ if (satelliteElevation >= 0) {
+ int satellite_width = 30;
+ int satellite_height = 30;
+ double temp = (180 - satelliteElevation) * (double) area.width() / 360.0;
+ double satellite_x = temp * qCos((satelliteAzimuth - 90) * M_PI / 180.0) +
+ center_x - (double) (satellite_width / 2.0);
+ double satellite_y = temp * qSin((satelliteAzimuth - 90) * M_PI / 180.0) +
+ center_y - (double) (satellite_height / 2.0);
+ QRectF satelliteArea(satellite_x, satellite_y, satellite_width, satellite_height);
+
+ /* Draw a small circle with PRN number inside */
+ painter.setPen(m_satelliteBorderColor);
+ if (inUse)
+ painter.setBrush(m_satelliteInUseColor);
+ else
+ painter.setBrush(m_satellitehInViewColor);
+ painter.drawChord(satelliteArea, 0, 5760);
+
+ int panel_width = 10;
+ painter.setBrush(m_satelliteSolarPanelColor);
+ QRectF solarPanelLArea(satellite_x - panel_width, satellite_y,
+ panel_width, satellite_height);
+ painter.drawRect(solarPanelLArea);
+
+ QRectF solarPanelRArea(satellite_x + satellite_width, satellite_y,
+ panel_width, satellite_height);
+ painter.drawRect(solarPanelRArea);
+
+ /* Satellite's PRN must be painter over the satellite circle */
+ QFont font = QApplication::font();
+ font.setPixelSize(12);
+ painter.setFont(font);
+ painter.setPen(m_satelliteBorderColor);
+ painter.drawText(satelliteArea, Qt::AlignCenter, QString::number(index));
+ }
+}
+
+SatelliteView::SatelliteView(QWidget *parent) : QWidget(parent)
+{
+ m_graphGridColor = QColor(74, 69, 66);
+ m_satelliteBorderColor = QColor(0, 0, 0);
+ m_satelliteSolarPanelColor = QColor(0, 75, 255);
+ m_satellitehInViewColor = QColor(153, 153, 153);
+ m_satelliteInUseColor = QColor(51, 191, 51);
+}
projects / gpsdata / blobdiff