Added pulse scope widget

* Basic curve rendring (still using mock data vector)
* Basic axes: no ticks, no labels -> no Qwt ;-)
* Marker showing current pulse phase (normalized to one pulsar spin period)
* Communication with OpenGL widget

pulsatingscience.pro

@@ -23,8 +23,10 @@ QT += core \
     gui \
     opengl
 HEADERS += src/pulsaranimationwidget.h \
+    src/pulsescopewidget.h \
     src/pulsatingscience.h
 SOURCES += src/pulsaranimationwidget.cpp \
+    src/pulsescopewidget.cpp \
     src/pulsatingscience.cpp \
     src/main.cpp
 FORMS += src/pulsatingscience.ui

src/pulsaranimationwidget.cpp

@@ -330,6 +330,8 @@ void PulsarAnimationWidget::updateFrame()
 	}
 
 	updateGL();
+
+	emit pulsarAnimationStep(m_pulsarRotationDelta);
 }
 
 void PulsarAnimationWidget::showRotationAxes(bool enabled)
@@ -476,4 +478,6 @@ void PulsarAnimationWidget::resetParameters()
 {
 	m_pulsarRotationAngle = 0.0f;
 	m_orbitRotationAngle = 0.0f;
+
+	emit pulsarAnimationReset();
 }

src/pulsaranimationwidget.h

@@ -56,6 +56,9 @@ public slots:
 
 signals:
 	void pulsarSemiMajorAxisUpdated(double value);
+	void pulsarViewDataUpdated(const QVector<float>& data);
+	void pulsarAnimationStep(float stepSize);
+	void pulsarAnimationReset();
 
 protected:
     void initializeGL();

src/pulsatingscience.cpp

@@ -44,6 +44,15 @@ PulsatingScience::PulsatingScience(QWidget *parent) : QMainWindow(parent)
 	connect(ui.pulsarGlWidget, SIGNAL(pulsarSemiMajorAxisUpdated(double)),
 				this, SLOT(updatePulsarSemiMajorAxisValue(double)));
 
+	connect(ui.pulsarGlWidget, SIGNAL(pulsarAnimationStep(float)),
+				ui.pulseScopeWidget, SLOT(markerStep(float)));
+
+	connect(ui.pulsarGlWidget, SIGNAL(pulsarAnimationReset()),
+				ui.pulseScopeWidget, SLOT(markerReset()));
+
+	connect(ui.pulsarGlWidget, SIGNAL(pulsarViewDataUpdated(const QVector<float>&)),
+				ui.pulseScopeWidget, SLOT(drawCurve(const QVector<float>&)));
+
 	on_sliderPulsarSemiMajorAxis_valueChanged(ui.sliderPulsarSemiMajorAxis->value());
 
 	on_radioCompanionNS_toggled(true);

src/pulsatingscience.ui

@@ -19,7 +19,40 @@
   <widget class="QWidget" name="centralwidget" >
    <layout class="QGridLayout" name="gridLayout" >
     <item row="0" column="0" >
-     <widget class="PulsarAnimationWidget" native="1" name="pulsarGlWidget" />
+     <widget class="QSplitter" name="splitter" >
+      <property name="orientation" >
+       <enum>Qt::Vertical</enum>
+      </property>
+      <widget class="PulsarAnimationWidget" native="1" name="pulsarGlWidget" >
+       <zorder>graphicsView</zorder>
+      </widget>
+      <widget class="PulseScopeWidget" name="pulseScopeWidget" >
+       <property name="frameShape" >
+        <enum>QFrame::NoFrame</enum>
+       </property>
+       <property name="verticalScrollBarPolicy" >
+        <enum>Qt::ScrollBarAlwaysOff</enum>
+       </property>
+       <property name="horizontalScrollBarPolicy" >
+        <enum>Qt::ScrollBarAlwaysOff</enum>
+       </property>
+       <property name="backgroundBrush" >
+        <brush brushstyle="SolidPattern" >
+         <color alpha="255" >
+          <red>0</red>
+          <green>0</green>
+          <blue>0</blue>
+         </color>
+        </brush>
+       </property>
+       <property name="interactive" >
+        <bool>false</bool>
+       </property>
+       <property name="renderHints" >
+        <set>QPainter::HighQualityAntialiasing</set>
+       </property>
+      </widget>
+     </widget>
     </item>
    </layout>
   </widget>
@@ -36,7 +69,7 @@
    </attribute>
    <widget class="QWidget" name="dockWidgetContents" >
     <layout class="QGridLayout" name="gridLayout_3" >
-     <item row="0" column="1" >
+     <item row="1" column="1" >
       <layout class="QGridLayout" name="gridLayout_2" >
        <item row="2" column="0" >
         <widget class="QLabel" name="label" >
@@ -352,7 +385,7 @@
        </item>
       </layout>
      </item>
-     <item row="0" column="0" >
+     <item row="1" column="0" >
       <layout class="QVBoxLayout" name="verticalLayout" >
        <item>
         <widget class="QPushButton" name="pushRun" >
@@ -636,6 +669,11 @@
    <header>src/pulsaranimationwidget.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>PulseScopeWidget</class>
+   <extends>QGraphicsView</extends>
+   <header>src/pulsescopewidget.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="pulsatingscience.qrc" />

src/pulsescopewidget.cpp

+/******************************************************************************
+ *   Copyright (C) 2009 by Oliver Bock                                        *
+ *   oliver.bock[AT]aei.mpg.de                                                *
+ *                                                                            *
+ *   This file is part of PulsatingScience.                                   *
+ *                                                                            *
+ *   PulsatingScience 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, version 3 of the License.               *
+ *                                                                            *
+ *   PulsatingScience 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 PulsatingScience. If not, see <http://www.gnu.org/licenses/>. *
+ *                                                                            *
+ ******************************************************************************/
+
+#include "pulsescopewidget.h"
+
+PulseScopeWidget::PulseScopeWidget(QWidget *parent) : QGraphicsView(parent),
+	m_scene(),
+	m_data(),
+	m_marker()
+{
+	m_scopeSizeH = 360;
+	m_scopeSizeV = 0;
+
+	setViewport(new QGLWidget(QGLFormat(QGL::AlphaChannel | QGL::SampleBuffers)));
+	setScene(&m_scene);
+	m_data.fill(0.0f, m_scopeSizeH);
+	m_marker.setPen(QPen(Qt::red));
+
+	// TODO: proof of concept only!
+	for(int i = 0; i < m_scopeSizeH; ++i) {
+		m_data[i] = pow(i-180,2);
+	}
+
+	drawCurve(m_data);
+}
+
+PulseScopeWidget::~PulseScopeWidget()
+{
+
+}
+
+void PulseScopeWidget::resizeEvent(QResizeEvent *event)
+{
+	Q_UNUSED(event);
+
+	fitInView(m_scene.itemsBoundingRect(), Qt::IgnoreAspectRatio);
+}
+
+void PulseScopeWidget::drawCurve(const QVector<float>& vector)
+{
+	m_data = vector;
+
+	if(m_marker.scene() == 0) {
+		m_marker.setLine(0.0, 0.0, 0.0, m_scopeSizeV);
+		m_scene.addItem(&m_marker);
+	}
+
+	// TODO: proof of concept only!
+
+	QVector<float> checkMax(m_data);
+	qSort(checkMax.begin(), checkMax.end());
+	m_scopeSizeV = (int)ceil(checkMax.last()) * 2;
+
+	m_scene.addLine(0.0f, 0.0f, 0.0f, m_scopeSizeV, QPen(Qt::white));
+	m_scene.addLine(0.0f, m_scopeSizeV / 2, m_scopeSizeH, m_scopeSizeV / 2, QPen(Qt::white));
+
+	QPainterPath pulsePath(QPoint(0.0f, m_scopeSizeV / 2));
+	for(int i = 0; i < m_scopeSizeH; ++i) {
+		pulsePath.lineTo(i,m_data[i]);
+	}
+	m_scene.addPath(pulsePath, QPen(Qt::green));
+
+	fitInView(m_scene.itemsBoundingRect(), Qt::IgnoreAspectRatio);
+}
+
+void PulseScopeWidget::markerStep(float stepSize) {
+	if(m_marker.line().x1() < m_scopeSizeH) {
+		QLineF line = m_marker.line();
+		line.translate(stepSize, 0);
+		m_marker.setLine(line);
+	}
+	else {
+		markerReset();
+	}
+}
+
+void PulseScopeWidget::markerReset() {
+	m_marker.setLine(0.0, 0.0, 0.0, m_scopeSizeV);
+}

src/pulsescopewidget.h

+/******************************************************************************
+ *   Copyright (C) 2009 by Oliver Bock                                        *
+ *   oliver.bock[AT]aei.mpg.de                                                *
+ *                                                                            *
+ *   This file is part of PulsatingScience.                                   *
+ *                                                                            *
+ *   PulsatingScience 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, version 3 of the License.               *
+ *                                                                            *
+ *   PulsatingScience 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 PulsatingScience. If not, see <http://www.gnu.org/licenses/>. *
+ *                                                                            *
+ ******************************************************************************/
+
+#ifndef PULSESCOPEWIDGET_H_
+#define PULSESCOPEWIDGET_H_
+
+#include <cmath>
+
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QGLContext>
+#include <QGraphicsLineItem>
+
+
+class PulseScopeWidget : public QGraphicsView
+{
+	Q_OBJECT
+
+public:
+	PulseScopeWidget(QWidget *parent = 0);
+	virtual ~PulseScopeWidget();
+
+	void resizeEvent(QResizeEvent *event);
+
+public slots:
+	void drawCurve(const QVector<float>& vector);
+	void markerStep(float stepSize);
+	void markerReset();
+
+private:
+	QGraphicsScene m_scene;
+	QVector<float> m_data;
+	QGraphicsLineItem m_marker;
+
+	int m_scopeSizeH;
+	int m_scopeSizeV;
+};
+
+#endif /* PULSESCOPEWIDGET_H_ */