def __init__(self, parent=None):
Qwt.QwtPlot.__init__(self, parent)
self.canvas().setStyleSheet(
"border: 2px solid Black;"
"border-radius: 15px;"
"background-color: qlineargradient( x1: 0, y1: 0, x2: 0, y2: 1,"
"stop: 0 LemonChiffon, stop: 1 PaleGoldenrod );")
# attach curve
self.d_curve = Qwt.QwtPlotCurve("Scattered Points")
self.d_curve.setPen(QColor("Purple"))
# when using QwtPlotCurve.ImageBuffer simple dots can be
# rendered in parallel on multicore systems.
self.d_curve.setRenderThreadCount(
0) # 0: use QThread.idealThreadCount()
self.d_curve.attach(self)
self.setSymbol(None)
# panning with the left mouse button
Qwt.QwtPlotPanner(self.canvas())
# zoom in/out with the wheel
#magnifier = Qwt.QwtPlotMagnifier( self.canvas() ) FIXME
#magnifier.setMouseButton( Qt.NoButton )
# distanve measurement with the right mouse button
self.picker = DistancePicker(self.canvas())
self.picker.setMousePattern(Qwt.QwtPlotPicker.MouseSelect1,
Qt.RightButton)
self.picker.setRubberBandPen(QPen(Qt.blue))
def __init__(self, parent):
Qwt.QwtPlot.__init__(self, parent)
self.RGBMap = 0
self.IndexMap = 1
self.HueMap = 2
self.AlphaMap = 3
self.d_alpha = 255
self.d_spectrogram = Qwt.QwtPlotSpectrogram()
self.d_spectrogram.setRenderThreadCount(
0) # use system specific thread count
self.d_spectrogram.setCachePolicy(Qwt.QwtPlotRasterItem.PaintCache)
contourLevels = []
for level in range(1, 20, 2):
contourLevels.append(0.5 * level)
self.d_spectrogram.setContourLevels(contourLevels)
self.d_spectrogram.setData(SpectrogramData())
self.d_spectrogram.attach(self)
zInterval = self.d_spectrogram.data().interval(Qt.ZAxis)
# A color bar on the right axis
self.rightAxis = self.axisWidget(Qwt.QwtPlot.yRight)
self.rightAxis.setTitle("Intensity")
self.rightAxis.setColorBarEnabled(True)
self.setAxisScale(Qwt.QwtPlot.yRight, zInterval.minValue(),
zInterval.maxValue())
self.enableAxis(Qwt.QwtPlot.yRight)
self.plotLayout().setAlignCanvasToScales(True)
self.setColorMap(self.RGBMap)
# LeftButton for the zooming
# MidButton for the panning
# RightButton: zoom out by 1
# Ctrl+RighButton: zoom out to full size
self.zoomer = MyZoomer(self.canvas())
self.zoomer.setMousePattern(Qwt.QwtEventPattern.MouseSelect2,
Qt.RightButton, Qt.ControlModifier)
self.zoomer.setMousePattern(Qwt.QwtEventPattern.MouseSelect3,
Qt.RightButton)
self.panner = Qwt.QwtPlotPanner(self.canvas())
self.panner.setAxisEnabled(Qwt.QwtPlot.yRight, False)
self.panner.setMouseButton(Qt.MidButton)
# Avoid jumping when labels with more/less digits
# appear/disappear when scrolling vertically
fm = QFontMetrics(self.axisWidget(Qwt.QwtPlot.yLeft).font())
sd = self.axisScaleDraw(Qwt.QwtPlot.yLeft)
sd.setMinimumExtent(fm.width("100.00"))
c = QColor(Qt.darkBlue)
self.zoomer.setRubberBandPen(c)
self.zoomer.setTrackerPen(c)
def __init__(self, *args):
QMainWindow.__init__(self, *args)
self.d_plot = Plot(self)
margin = 5
self.d_plot.setContentsMargins(margin, margin, margin, 0)
self.setContextMenuPolicy(Qt.NoContextMenu)
self.d_zoomer = [None, None]
self.d_zoomer[0] = Zoomer(Qwt.QwtPlot.xBottom, Qwt.QwtPlot.yLeft,
self.d_plot.canvas())
self.d_zoomer[0].setRubberBand(Qwt.QwtPicker.RectRubberBand)
self.d_zoomer[0].setRubberBandPen(QColor(Qt.green))
self.d_zoomer[0].setTrackerMode(Qwt.QwtPicker.ActiveOnly)
self.d_zoomer[0].setTrackerPen(QColor(Qt.white))
self.d_zoomer[1] = Zoomer(Qwt.QwtPlot.xTop, Qwt.QwtPlot.yRight,
self.d_plot.canvas())
self.d_panner = Qwt.QwtPlotPanner(self.d_plot.canvas())
self.d_panner.setMouseButton(Qt.MidButton)
self.d_picker = Qwt.QwtPlotPicker(Qwt.QwtPlot.xBottom,
Qwt.QwtPlot.yLeft,
Qwt.QwtPlotPicker.CrossRubberBand,
Qwt.QwtPicker.AlwaysOn,
self.d_plot.canvas())
self.d_picker.setStateMachine(Qwt.QwtPickerDragPointMachine())
self.d_picker.setRubberBandPen(QColor(Qt.green))
self.d_picker.setRubberBand(Qwt.QwtPicker.CrossRubberBand)
self.d_picker.setTrackerPen(QColor(Qt.white))
self.setCentralWidget(self.d_plot)
self.toolBar = QToolBar(self)
self.btnZoom = QToolButton(self.toolBar)
self.btnZoom.setText("Zoom")
self.btnZoom.setIcon(QIcon(QPixmap(zoom_xpm)))
self.btnZoom.setCheckable(True)
self.btnZoom.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
self.toolBar.addWidget(self.btnZoom)
self.btnZoom.toggled.connect(self.enableZoomMode)
self.btnPrint = QToolButton(self.toolBar)
self.btnPrint.setText("Print")
self.btnPrint.setIcon(QIcon(QPixmap(print_xpm)))
self.btnPrint.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
self.toolBar.addWidget(self.btnPrint)
self.btnPrint.clicked.connect(self.mprint)
self.btnExport = QToolButton(self.toolBar)
self.btnExport.setText("Export")
self.btnExport.setIcon(QIcon(QPixmap(print_xpm)))
self.btnExport.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
self.toolBar.addWidget(self.btnExport)
self.btnExport.clicked.connect(self.exportDocument)
self.toolBar.addSeparator()
hBox = QWidget(self.toolBar)
self.layout = QHBoxLayout(hBox)
self.layout.setSpacing(0)
self.layout.addWidget(QWidget(hBox), 10) # spacer
self.layout.addWidget(QLabel("Damping Factor", hBox), 0)
self.layout.addSpacing(10)
self.cntDamp = Qwt.QwtCounter(hBox)
self.cntDamp.setRange(0.0, 5.0)
self.cntDamp.setSingleStep(0.01)
self.cntDamp.setValue(0.0)
self.layout.addWidget(self.cntDamp, 0)
self.toolBar.addWidget(hBox)
self.addToolBar(self.toolBar)
self.statusBar()
self.enableZoomMode(False)
self.showInfo("humm")
self.cntDamp.valueChanged['double'].connect(self.d_plot.setDamp)
self.d_picker.moved.connect(self.moved)