source: ntrip/trunk/GnssCenter/map_stations/map_stations.cpp@ 5414

Last change on this file since 5414 was 5414, checked in by mervart, 9 years ago
File size: 7.1 KB
Line 
1
2/* -------------------------------------------------------------------------
3 * RTNet GUI
4 * -------------------------------------------------------------------------
5 *
6 * Class: t_map_stations
7 *
8 * Purpose: Plot map of stations/satellites
9 *
10 * Author: L. Mervart
11 *
12 * Created: 05-Jan-2013
13 *
14 * Changes:
15 *
16 * -----------------------------------------------------------------------*/
17
18#include <QtSvg>
19
20#include <qwt_symbol.h>
21#include <qwt_plot.h>
22#include <qwt_plot_svgitem.h>
23#include <qwt_plot_curve.h>
24#include <qwt_plot_marker.h>
25#include <qwt_plot_canvas.h>
26#include <qwt_plot_zoomer.h>
27#include <qwt_plot_renderer.h>
28
29#include "map_stations.h"
30#include "thriftclient.h"
31
32using namespace std;
33using namespace GnssCenter;
34
35Q_EXPORT_PLUGIN2(gnsscenter_map_stations, GnssCenter::t_map_stationsFactory)
36
37// Constructor
38/////////////////////////////////////////////////////////////////////////////
39t_map_stations::t_map_stations() : QDialog() {
40
41 // Map in Scalable Vector Graphics (svg) Format
42 // --------------------------------------------
43 _mapPlot = new QwtPlot();
44
45 _mapPlot->setAxisScale(QwtPlot::xBottom, -180.0, 180.0);
46 _mapPlot->setAxisScale(QwtPlot::yLeft, -90.0, 90.0);
47
48 _mapPlotZoomer = new QwtPlotZoomer(_mapPlot->canvas());
49
50 _mapPlot->canvas()->setFocusPolicy(Qt::WheelFocus);
51
52 QwtPlotSvgItem* mapItem = new QwtPlotSvgItem();
53 mapItem->loadFile(QRectF(-180.0, -90.0, 360.0, 180.0), ":world.svg");
54 mapItem->attach(_mapPlot);
55
56 // Buttons
57 // -------
58 int ww = QFontMetrics(font()).width('w');
59
60 _buttonClose = new QPushButton(tr("Close"), this);
61 _buttonClose->setMaximumWidth(10*ww);
62 connect(_buttonClose, SIGNAL(clicked()), this, SLOT(slotClose()));
63
64 _buttonPrint = new QPushButton(tr("Print"), this);
65 _buttonPrint->setMaximumWidth(10*ww);
66 connect(_buttonPrint, SIGNAL(clicked()), this, SLOT(slotPrint()));
67
68 _buttonWhatsThis = new QPushButton(tr("Help=Shift+F1"), this);
69 _buttonWhatsThis->setMaximumWidth(10*ww);
70 connect(_buttonWhatsThis, SIGNAL(clicked()), this, SLOT(slotWhatsThis()));
71
72 // Layout
73 // ------
74 QHBoxLayout* buttonLayout = new QHBoxLayout;
75 buttonLayout->addWidget(_buttonClose);
76 buttonLayout->addWidget(_buttonPrint);
77 buttonLayout->addWidget(_buttonWhatsThis);
78
79 QVBoxLayout* mainLayout = new QVBoxLayout(this);
80 mainLayout->addWidget(_mapPlot);
81 mainLayout->addLayout(buttonLayout);
82
83 // WhatsThis
84 // ---------
85 _buttonClose->setWhatsThis(tr("<p>Close window.</p>"));
86 _buttonPrint->setWhatsThis(tr("<p>Print stream distribution map.</p>"));
87
88 // Minimal and Maximal Coordinates
89 // -------------------------------
90 _minPointLat = 0.0;
91 _maxPointLat = 0.0;
92 _minPointLon = 0.0;
93 _maxPointLon = 0.0;
94
95 // Important
96 // ---------
97 _mapPlot->replot();
98
99 // Thrift Client;
100 _thriftClient = new t_thriftClient;
101 _thriftClient->start();
102}
103
104// Destructor
105/////////////////////////////////////////////////////////////////////////////
106t_map_stations::~t_map_stations() {
107 delete _mapPlot;
108 delete _buttonWhatsThis;
109 _thriftClient->stop();
110}
111
112//
113/////////////////////////////////////////////////////////////////////////////
114void t_map_stations::slotNewPoint(const QString& name, double latDeg, double lonDeg) {
115
116 if (lonDeg > 180.0) lonDeg -= 360.0;
117
118 QColor red(220,20,60);
119 QwtSymbol* symbol = new QwtSymbol(QwtSymbol::Rect, QBrush(red),
120 QPen(red), QSize(2,2));
121 QwtPlotMarker* marker = new QwtPlotMarker();
122 marker->setValue(lonDeg, latDeg);
123 if (lonDeg > 170.0) {
124 marker->setLabelAlignment(Qt::AlignLeft);
125 }
126 else {
127 marker->setLabelAlignment(Qt::AlignRight);
128 }
129 QwtText text(name.left(4));
130 QFont font = text.font();
131 font.setPointSize(font.pointSize()*0.8);
132 text.setFont(font);
133 marker->setLabel(text);
134 marker->setSymbol(symbol);
135 marker->attach(_mapPlot);
136
137 // Remeber minimal and maximal coordinates
138 // ---------------------------------------
139 if (_minPointLat == 0.0 && _maxPointLat == 0.0 &&
140 _minPointLon == 0.0 && _maxPointLon == 0.0) {
141 _minPointLat = latDeg;
142 _maxPointLat = latDeg;
143 _minPointLon = lonDeg;
144 _maxPointLon = lonDeg;
145 }
146 else {
147 if (_maxPointLat < latDeg) {
148 _maxPointLat = latDeg;
149 }
150 else if (_minPointLat > latDeg) {
151 _minPointLat = latDeg;
152 }
153 if (_maxPointLon < lonDeg) {
154 _maxPointLon = lonDeg;
155 }
156 else if (_minPointLon > lonDeg) {
157 _minPointLon = lonDeg;
158 }
159 }
160}
161
162// Close
163////////////////////////////////////////////////////////////////////////////
164void t_map_stations::slotClose() {
165 done(0);
166}
167
168// Close Dialog gracefully
169////////////////////////////////////////////////////////////////////////////
170void t_map_stations::closeEvent(QCloseEvent* event) {
171 QDialog::closeEvent(event);
172}
173
174//
175////////////////////////////////////////////////////////////////////////////
176void t_map_stations::showEvent(QShowEvent* event) {
177 double width = _maxPointLon - _minPointLon;
178 double height = _maxPointLat - _minPointLat;
179 if (width > 0 && height > 0) {
180
181 // Extend plot area by 10 percent
182 // ------------------------------
183 double eps = 0.1;
184 double epsLon = eps * (_maxPointLon - _minPointLon);
185 double epsLat = eps * (_maxPointLat - _minPointLat);
186 double widthExt = width + 2 * epsLon;
187 double heightExt = height + 2 * epsLat;
188 double minLon = _minPointLon - epsLon;
189 double minLat = _minPointLat - epsLat;
190
191 // Keep lat/lon relations
192 // ----------------------
193 double widthBorder = widthExt;
194 double heightBorder = heightExt;
195 double scale = widthExt/heightExt/2.;
196 if ( scale < 1.) {
197 widthBorder = widthExt / scale;
198 minLon = minLon - (widthBorder - widthExt)/2.;
199 }
200 else {
201 heightBorder = heightExt * scale;
202 minLat = minLat - (heightBorder - heightExt)/2.;
203 }
204
205 // Borders shall not exceed min or max values
206 // ------------------------------------------
207 if (minLon < -180.) minLon = -180.;
208 if (minLat < -90.) minLat = -90.;
209 double maxLat = minLat + heightBorder;
210 if ( maxLat > 90) minLat = minLat - (maxLat - 90.);
211 double maxLon = minLon + widthBorder;
212 if ( maxLon > 180) minLon = minLon - (maxLon - 180.);
213
214 // Area large enough to justify world map
215 // --------------------------------------
216 if (widthBorder < 270.0 && heightBorder < 135.0) {
217 QRectF rect(minLon, minLat, widthBorder, heightBorder);
218 _mapPlotZoomer->zoom(rect);
219 }
220 }
221 QDialog::showEvent(event);
222}
223
224// Print the widget
225////////////////////////////////////////////////////////////////////////////
226void t_map_stations::slotPrint() {
227
228 QPrinter printer;
229 QPrintDialog* dialog = new QPrintDialog(&printer, this);
230 dialog->setWindowTitle(tr("Print Map"));
231 if (dialog->exec() != QDialog::Accepted) {
232 return;
233 }
234 else {
235 QwtPlotRenderer renderer;
236 renderer.setDiscardFlag(QwtPlotRenderer::DiscardBackground, false);
237 renderer.setLayoutFlag(QwtPlotRenderer::KeepFrames, true);
238 renderer.renderTo(_mapPlot, printer);
239 }
240}
241
242// Whats This Help
243////////////////////////////////////////////////////////////////////////////
244void t_map_stations::slotWhatsThis() {
245 QWhatsThis::enterWhatsThisMode();
246}
247
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