Code cleanup

src/elevationgraph.cpp

@@ -15,13 +15,18 @@ ElevationGraph::ElevationGraph(QWidget *parent) : Graph(parent)
 	Graph::setXScale(0.001);
 }
 
-void ElevationGraph::loadData(const QVector<QPointF> &data)
+void ElevationGraph::loadGPX(const GPX &gpx)
 {
-	qreal ascent = 0, descent = 0;
+	QVector<QPointF> data;
-	qreal min = data.at(0).y();
+	qreal min, max, ascent = 0, descent = 0;
-	qreal max = data.at(0).y();
 
 
+	gpx.elevationGraph(data);
+	if (data.isEmpty())
+		return;
+
+	min = max = data.at(0).y();
+
 	for (int i = 1; i < data.size(); i++) {
 		qreal cur = data.at(i).y();
 		qreal prev = data.at(i-1).y();
@@ -42,10 +47,10 @@ void ElevationGraph::loadData(const QVector<QPointF> &data)
 	_max = qMax(_max, max);
 	_min = qMin(_min, min);
 
-	addInfo(tr("Ascent"), QString::number((int)_ascent) + " " + _yUnits);
+	addInfo(tr("Ascent"), QString::number(_ascent, 'f', 0) + " " + _yUnits);
-	addInfo(tr("Descent"), QString::number((int)_descent) + " " + _yUnits);
+	addInfo(tr("Descent"), QString::number(_descent, 'f', 0) + " " + _yUnits);
-	addInfo(tr("Maximum"), QString::number((int)_max) + " " + _yUnits);
+	addInfo(tr("Maximum"), QString::number(_max, 'f', 0) + " " + _yUnits);
-	addInfo(tr("Minimum"), QString::number((int)_min) + " " + _yUnits);
+	addInfo(tr("Minimum"), QString::number(_min, 'f', 0) + " " + _yUnits);
 
 	Graph::loadData(data);
 }

src/elevationgraph.h

@@ -2,6 +2,7 @@
 #define ELEVATIONGRAPH_H
 
 #include "graph.h"
+#include "gpx.h"
 
 class ElevationGraph : public Graph
 {
@@ -10,7 +11,7 @@ class ElevationGraph : public Graph
 public:
 	ElevationGraph(QWidget *parent = 0);
 
-	void loadData(const QVector<QPointF> &data);
+	void loadGPX(const GPX &gpx);
 	void clear();
 
 private:

src/graph.cpp

@@ -234,7 +234,6 @@ void Graph::clear()
 
 	if (_info->scene() == _scene)
 		_scene->removeItem(_info);
-
 	_sliderInfo->show();
 
 	_info->clear();
@@ -252,6 +251,9 @@ void Graph::clear()
 
 void Graph::emitSliderPositionChanged(const QPointF &pos)
 {
+	if (_graphs.isEmpty())
+		return;
+
 	qreal val = pos.x() / _slider->area().width();
 	emit sliderPositionChanged(val);
 

src/gui.cpp

@@ -218,33 +218,21 @@ void GUI::openFile()
 bool GUI::openFile(const QString &fileName)
 {
 	GPX gpx;
-	QVector<QPointF> elevation;
-	QVector<QPointF> speed;
-	QVector<QPointF> track;
 
 	if (!fileName.isEmpty()) {
 		if (gpx.loadFile(fileName)) {
-			gpx.elevationGraph(elevation);
+			_elevationGraph->loadGPX(gpx);
-			gpx.speedGraph(speed);
+			_speedGraph->loadGPX(gpx);
-			gpx.track(track);
+			_track->loadGPX(gpx);
-
-			_elevationGraph->loadData(elevation);
-			_speedGraph->loadData(speed, gpx.time());
-			_track->loadData(track);
 			if (_showPOIAction->isChecked())
 				_track->loadPOI(_poi);
 
-			_fileActionGroup->setEnabled(true);
-
-			if (++_files > 1)
-				_fileNameLabel->setText(tr("%1 tracks").arg(_files));
-			else
-				_fileNameLabel->setText(fileName);
 			_distance += gpx.distance();
-			_distanceLabel->setText(QString::number(_distance / 1000, 'f', 1)
-			  + " " + tr("km"));
 			_time += gpx.time();
-			_timeLabel->setText(timeSpan(_time));
+
+			updateStatusBarInfo(fileName);
+
+			_fileActionGroup->setEnabled(true);
 
 			return true;
 		} else {
@@ -332,6 +320,18 @@ void GUI::showPOI()
 		_track->clearPOI();
 }
 
+void GUI::updateStatusBarInfo(const QString &fileName)
+{
+	if (++_files > 1)
+		_fileNameLabel->setText(tr("%1 tracks").arg(_files));
+	else
+		_fileNameLabel->setText(fileName);
+
+	_distanceLabel->setText(QString::number(_distance / 1000, 'f', 1)
+	  + " " + tr("km"));
+	_timeLabel->setText(timeSpan(_time));
+}
+
 void GUI::graphChanged(int index)
 {
 	if (_trackGraphs->widget(index) == _elevationGraph)

src/gui.h

@@ -41,13 +41,13 @@ private:
 	void createMenus();
 	void createToolBars();
 	void createStatusBar();
-
 	void createTrackView();
 	void createTrackGraphs();
 
-	void keyPressEvent(QKeyEvent * event);
-
 	void saveFile(const QString &fileName);
+	void updateStatusBarInfo(const QString &fileName);
+
+	void keyPressEvent(QKeyEvent * event);
 
 	QMenu *_fileMenu;
 	QMenu *_aboutMenu;

src/speedgraph.cpp

@@ -15,17 +15,18 @@ SpeedGraph::SpeedGraph(QWidget *parent) : Graph(parent)
 	Graph::setPrecision(1);
 }
 
-void SpeedGraph::loadData(const QVector<QPointF> &data, qreal time)
+void SpeedGraph::loadGPX(const GPX &gpx)
 {
+	QVector<QPointF> data;
 	qreal max = 0, sum = 0, w = 0, avg;
-	qreal dist;
 
-	if (data.size() < 2)
+
+	gpx.speedGraph(data);
+	if (data.isEmpty())
 		return;
 
-	dist = data.at(data.size() - 1).x() - data.at(0).x();
+	avg = gpx.distance() / gpx.time();
-	avg = dist / time;
+	_avg.append(QPointF(gpx.distance(), avg));
-	_avg.append(QPointF(dist, avg));
 
 	for (int i = 0; i < data.size(); i++)
 		max = qMax(max, data.at(i).y());

src/speedgraph.h

@@ -3,6 +3,7 @@
 
 #include <QList>
 #include "graph.h"
+#include "gpx.h"
 
 class SpeedGraph : public Graph
 {
@@ -11,7 +12,7 @@ class SpeedGraph : public Graph
 public:
 	SpeedGraph(QWidget *parent = 0);
 
-	void loadData(const QVector<QPointF> &data, qreal time);
+	void loadGPX(const GPX &gpx);
 	void clear();
 
 private:

src/track.cpp

@@ -26,13 +26,17 @@ Track::~Track()
 	delete _scene;
 }
 
-void Track::loadData(const QVector<QPointF> &track)
+void Track::loadGPX(const GPX &gpx)
 {
+	QVector<QPointF> track;
 	QPainterPath path;
 	QGraphicsPathItem *pi;
 	MarkerItem *mi;
 	QColor color = _colorShop.color();
 
+
+	gpx.track(track);
+
 	if (track.size() < 2)
 		return;
 

src/track.h

@@ -7,6 +7,7 @@
 #include <QList>
 #include <QPrinter>
 #include "poi.h"
+#include "gpx.h"
 #include "colorshop.h"
 
 
@@ -21,7 +22,7 @@ public:
 	Track(QWidget *parent = 0);
 	~Track();
 
-	void loadData(const QVector<QPointF> &track);
+	void loadGPX(const GPX &gpx);
 	void loadPOI(const POI &poi);
 
 	void clearPOI();