00001 #include "SensorStreamWidget.h"
00002 #include "SensorStreamWidget.moc"
00003
00004 SensorStreamWidget::SensorStreamWidget(QWidget * _parent):
00005 QFrame(_parent),
00006 m_isSeekable(false),
00007 m_position(0)
00008 {
00009 m_layout = new QGridLayout(this);
00010 m_nextButton = new QPushButton("Next", this);
00011 m_sensorSlider = new QSlider(this);
00012 m_sensorBox = new QSpinBox(this);
00013 m_sensorBox->setMinimum(0);
00014
00015 buildGui();
00016 }
00017
00018 SensorStreamWidget::~SensorStreamWidget(){
00019 delete m_layout;
00020 delete m_nextButton;
00021 delete m_sensorSlider;
00022 delete m_sensorBox;
00023 }
00024
00025 void SensorStreamWidget::seekPosition(int position){
00026 unsigned int _position(position);
00027 if(_position == m_position){
00028 return;
00029 }
00030 m_position = _position;
00031 if(m_isSeekable){
00032 m_sensorSlider->setValue(_position);
00033 m_sensorBox->setValue(_position);
00034 }
00035 emit newReading(_position);
00036 }
00037
00038 void SensorStreamWidget::nextPosition(){
00039 if(m_isSeekable){
00040 seekPosition(m_sensorSlider->value() + m_sensorSlider->singleStep());
00041 } else {
00042 emit newReading();
00043 }
00044 }
00045
00046 void SensorStreamWidget::seekable(bool _seek, unsigned int _size){
00047 m_isSeekable = _seek;
00048 m_sensorSlider->setEnabled(_seek);
00049 m_sensorSlider->setMaximum(_size);
00050 m_sensorBox->setEnabled(_seek);
00051 m_sensorBox->setMaximum(_size);
00052 }
00053
00054 void SensorStreamWidget::streamReady(){
00055 m_nextButton->setEnabled(true);
00056 }
00057
00058
00059 void SensorStreamWidget::buildGui(){
00060 m_layout->setSpacing(3);
00061 m_layout->setMargin(3);
00062 m_layout->addWidget(m_sensorSlider, 0,0);
00063 m_layout->addWidget(m_nextButton, 0,1);
00064 m_layout->addWidget(m_sensorBox, 0,2);
00065
00066 m_sensorSlider->setEnabled(false);
00067 m_sensorSlider->setOrientation(Qt::Horizontal);
00068
00069 m_nextButton->setEnabled(false);
00070
00071 connect(m_nextButton, SIGNAL(clicked()), this, SLOT(nextPosition()));
00072 connect(m_sensorSlider, SIGNAL(valueChanged(int)), this, SLOT(seekPosition(int)));
00073 connect(m_sensorBox, SIGNAL(valueChanged(int)), this, SLOT(seekPosition(int)));
00074 }
