/*!
\brief Create a widget to be inserted into the legend
The default implementation returns a QwtLegendLabel.
\param data Attributes of the legend entry
\return Widget representing data on the legend
\note updateWidget() will called soon after createWidget()
with the same attributes.
*/
QWidget *QwtLegend::createWidget( const QwtLegendData &data ) const
{
Q_UNUSED( data );
QwtLegendLabel *label = new QwtLegendLabel();
label->setItemMode( defaultItemMode() );
connect( label, SIGNAL( clicked() ), SLOT( itemClicked() ) );
connect( label, SIGNAL( checked( bool ) ), SLOT( itemChecked( bool ) ) );
return label;
}
QWidget *PlotLegend::createWidget( const QwtLegendData &data ) const
{
QWidget *w = QwtLegend::createWidget( data );
QwtLegendLabel *label = dynamic_cast<QwtLegendLabel *>( w );
if ( label )
{
label->setMargin( 0 );
}
return w;
}
void scopePlot::setCurveOn(int i,bool b)
{
QwtPlotItemList items = plW->itemList( QwtPlotItem::Rtti_PlotCurve);
if(i>=items.size()) return;
const QVariant itemInfo = plW->itemToInfo( items[i] );
QwtLegendLabel *legendLabel =qobject_cast<QwtLegendLabel *>( legend->legendWidget( itemInfo ) );
if (legendLabel )
{
legendLabel->setChecked(b);
}
items[i]->setVisible( b );
}
/*!
\brief Update the widget
\param widget Usually a QwtLegendLabel
\param data Attributes to be displayed
\sa createWidget()
\note When widget is no QwtLegendLabel updateWidget() does nothing.
*/
void QwtLegend::updateWidget( QWidget *widget, const QwtLegendData &data )
{
QwtLegendLabel *label = qobject_cast<QwtLegendLabel *>( widget );
if ( label )
{
label->setData( data );
if ( !data.value( QwtLegendData::ModeRole ).isValid() )
{
// use the default mode, when there is no specific
// hint from the legend data
label->setItemMode( defaultItemMode() );
}
}
}
TVPlot::TVPlot( QWidget *parent ):
QwtPlot( parent )
{
setTitle( "Watching TV during a weekend" );
QwtPlotCanvas *canvas = new QwtPlotCanvas();
canvas->setPalette( Qt::gray );
canvas->setBorderRadius( 10 );
setCanvas( canvas );
plotLayout()->setAlignCanvasToScales( true );
setAxisTitle( QwtPlot::yLeft, "Number of People" );
setAxisTitle( QwtPlot::xBottom, "Number of Hours" );
QwtLegend *legend = new QwtLegend;
legend->setDefaultItemMode( QwtLegendData::Checkable );
insertLegend( legend, QwtPlot::RightLegend );
populate();
connect( legend, SIGNAL( checked( const QVariant &, bool, int ) ),
SLOT( showItem( const QVariant &, bool ) ) );
replot(); // creating the legend items
QwtPlotItemList items = itemList( QwtPlotItem::Rtti_PlotHistogram );
for ( int i = 0; i < items.size(); i++ )
{
if ( i == 0 )
{
const QVariant itemInfo = itemToInfo( items[i] );
QwtLegendLabel *legendLabel =
qobject_cast<QwtLegendLabel *>( legend->legendWidget( itemInfo ) );
if ( legendLabel )
legendLabel->setChecked( true );
items[i]->setVisible( true );
}
else
{
items[i]->setVisible( false );
}
}
setAutoReplot( true );
}
void CpuPlot::showCurve( QwtPlotItem *item, bool on ) {
item->setVisible( on );
QwtLegend *lgd = qobject_cast<QwtLegend *>( legend() );
QList<QWidget *> legendWidgets =
lgd->legendWidgets( itemToInfo( item ) );
if ( legendWidgets.size() == 1 ) {
QwtLegendLabel *legendLabel =
qobject_cast<QwtLegendLabel *>( legendWidgets[0] );
if ( legendLabel )
legendLabel->setChecked( on );
}
replot();
}
void scopePlot::init(QString title)
{
setup=true;
setCentralWidget(wd);
connect(ui.offsetWheel, SIGNAL(valueChanged(double)),SLOT(slotOffsetChanged(double )));
connect(ui.rangeWheel, SIGNAL(valueChanged(double)), SLOT(slotRangeChanged(double )));
connect(ui.samplesPushButton, SIGNAL(clicked()), this, SLOT(slotSamplesButtton()));
plW=ui.plotWindow;
plW->setTitle(title);
plW->setCanvasBackground(Qt::darkBlue);
curve1->attach(plW);
curve2->attach(plW);
curve3->attach(plW);
curve4->attach(plW);
plW->setAxisTitle(QwtPlot::xBottom,xAxisTitle);
plW->setAxisScale(QwtPlot::xBottom, 0, 100);
plW->setAxisTitle(QwtPlot::yLeft, "Values");
plW->setAxisScale(QwtPlot::yLeft, -1.5, 1.5);
QwtPlotGrid *grid = new QwtPlotGrid;
grid->enableXMin(true);
grid->setMajorPen(QPen(Qt::white, 0, Qt::DotLine));
grid->setMinorPen(QPen(Qt::gray, 0 , Qt::DotLine));
grid->attach(plW);
QwtText m1("M1");
m1.setColor(QColor(Qt::white));
marker1=new QwtPlotMarker();
marker1->setValue(0.0, 0.0);
marker1->setLabel(m1);
marker1->setLabelAlignment(Qt::AlignRight | Qt::AlignBottom);
marker1->setLinePen(QPen(QColor(200,150,0), 0, Qt::DashDotLine));
marker1->setSymbol( new QwtSymbol(QwtSymbol::Diamond,QColor(Qt::green), QColor(Qt::green), QSize(7,7)));
// marker1->hide();
marker1->attach(plW);
QwtText m2("M2");
m2.setColor(QColor(Qt::white));
marker2=new QwtPlotMarker();
marker2->setValue(0.0, 0.0);
marker2->setLabel(m2);
marker2->setLabelAlignment(Qt::AlignLeft | Qt::AlignTop);
marker2->setLinePen(QPen(QColor(200,150,0), 0, Qt::DashDotLine));
marker2->setSymbol( new QwtSymbol(QwtSymbol::Diamond,QColor(Qt::yellow), QColor(Qt::yellow), QSize(7,7)));
// marker2->hide();
marker2->attach(plW);
legend = new QwtLegend;
legend->setFrameStyle(QFrame::Box|QFrame::Sunken);
legend->setDefaultItemMode(QwtLegendData::Checkable);
QPalette pal(legend->palette());
pal.setColor(QPalette::Window,Qt::darkBlue);
pal.setColor(QPalette::WindowText,Qt::white);
pal.setColor(QPalette::Text,Qt::black);
legend->setPalette(pal);
plW->insertLegend(legend, QwtPlot::BottomLegend);
picker = new QwtPlotPicker(QwtPlot::xBottom, QwtPlot::yLeft,QwtPlotPicker::CrossRubberBand, QwtPicker::AlwaysOn, plW->canvas());
picker->setStateMachine(new QwtPickerDragPointMachine());
picker->setRubberBandPen(QColor(Qt::green));
picker->setRubberBand(QwtPicker::CrossRubberBand);
picker->setTrackerPen(QColor(Qt::white));
picker->setEnabled(true);
plW->replot();
QwtPlotItemList items = plW->itemList( QwtPlotItem::Rtti_PlotCurve);
for ( int i = 0; i < items.size(); i++ )
{
const QVariant itemInfo = plW->itemToInfo( items[i] );
QwtLegendLabel *legendLabel =qobject_cast<QwtLegendLabel *>( legend->legendWidget( itemInfo ) );
if (legendLabel )
{
legendLabel->setChecked( true );
}
items[i]->setVisible( true );
}
connect(picker, SIGNAL(moved(const QPointF &)),SLOT(pickerMoved(const QPointF &)));
connect(picker, SIGNAL(selected(const QPointF &)), SLOT(pickerSelected(const QPointF &)));
connect(legend, SIGNAL(checked(const QVariant &, bool ,int)),SLOT(legendClicked(const QVariant &,bool)));
connect(ui.nextButton, SIGNAL(clicked()),SLOT(slotNext()));
connect(ui.previousButton, SIGNAL(clicked()),SLOT(slotPrevious()));
plW->setAxisTitle(QwtPlot::xBottom,xAxisTitle);
xOffset=0;
}
void caStripPlot::setLegendAttribute(QColor c, QFont f, LegendAtttribute SW)
{
int i;
#if QWT_VERSION < 0x060100
for(i=0; i < NumberOfCurves; i++) {
switch (SW) {
case TEXT:
if(thisLegendshow) {
QwtText text;
text.setText(legendText(i));
qobject_cast<QwtLegendItem*>(this->legend()->find(curve[i]))->setText(text);
}
break;
case FONT:
if(getLegendEnabled()) {
if(legend() != (QwtLegend*) 0) {
QList<QWidget *> list = legend()->legendItems();
for (QList<QWidget*>::iterator it = list.begin(); it != list.end(); ++it ) {
QWidget *w = *it;
w->setFont(f);
}
}
}
break;
case COLOR:
if(legend() != (QwtLegend*) 0) {
QList<QWidget *> list = legend()->legendItems();
for (QList<QWidget*>::iterator it = list.begin(); it != list.end(); ++it ) {
QWidget *w = *it;
QPalette palette = w->palette();
palette.setColor( QPalette::WindowText, c); // for ticks
palette.setColor( QPalette::Text, c); // for ticks' labels
w->setPalette (palette);
w->setFont(f);
}
}
break;
}
}
#else
i=0;
foreach (QwtPlotItem *plt_item, itemList()) {
if ( plt_item->rtti() == QwtPlotItem::Rtti_PlotCurve ) {
QwtLegend *lgd = qobject_cast<QwtLegend *>(legend());
QList<QWidget *> legendWidgets = lgd->legendWidgets(itemToInfo(plt_item));
if ( legendWidgets.size() == 1 ) {
QwtLegendLabel *b = qobject_cast<QwtLegendLabel *>(legendWidgets[0]);
switch (SW) {
case TEXT:
if(thisLegendshow) {
QwtText text;
text.setText(legendText(i++));
//printf("%s %s\n", b->plainText().toAscii().constData(), legendText(i-1).toAscii().constData());
b->setText(text);
b->update();
}
break;
case FONT:
//printf("%s %s\n", b->plainText().toAscii().constData(), legendText(i-1).toAscii().constData());
b->setFont(f);
b->update();
break;
case COLOR:
//printf("%s %s\n", b->plainText().toAscii().constData(), legendText(i-1).toAscii().constData());
QPalette palette = b->palette();
palette.setColor( QPalette::WindowText, c); // for ticks
palette.setColor( QPalette::Text, c); // for ticks' labels
b->setPalette(palette);
b->update();
break;
}
}
}
}
#endif
}
