Aluode/PerceptionLabPortable

1"""2This example demonstrates the SpinBox widget, which is an extension of 3QDoubleSpinBox providing some advanced features:4 5  * SI-prefixed units6  * Non-linear stepping modes7  * Bounded/unbounded values8 9"""10 11import ast12 13import pyqtgraph as pg14from pyqtgraph.Qt import QtWidgets15 16app = pg.mkQApp("SpinBox Example")17 18 19spins = [20    ("Floating-point spin box, min=0, no maximum.<br>Non-finite values (nan, inf) are permitted.",21     pg.SpinBox(value=5.0, bounds=[0, None], finite=False)),22    ("Integer spin box, dec stepping<br>(1-9, 10-90, 100-900, etc), decimals=4", 23     pg.SpinBox(value=10, int=True, dec=True, minStep=1, step=1, decimals=4)),24    ("Float with SI-prefixed units<br>(n, u, m, k, M, etc)", 25     pg.SpinBox(value=0.9, suffix='V', siPrefix=True)),26    ("Float with SI-prefixed units,<br>dec step=0.1, minStep=0.1", 27     pg.SpinBox(value=1.0, suffix='PSI', siPrefix=True, dec=True, step=0.1, minStep=0.1)),28    ("Float with SI-prefixed units,<br>dec step=0.5, minStep=0.01", 29     pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=0.5, minStep=0.01)),30    ("Float with SI-prefixed units,<br>dec step=1.0, minStep=0.001", 31     pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=1.0, minStep=0.001)),32    ("Float with SI-prefixed units,<br>scaleAtZero=1e-6, step=1e-9",33     pg.SpinBox(value=0, suffix='V', siPrefix=True, scaleAtZero=1e-6, step=1e-9)),34    ("Float with SI prefix but no suffix",35     pg.SpinBox(value=1e9, siPrefix=True)),36    ("Float with custom formatting", 37     pg.SpinBox(value=23.07, format='${value:0.02f}',38                regex = r'\$?(?P<number>(-?\d+(\.\d+)?)|(-?\.\d+))$')),39    ("Int with suffix",40     pg.SpinBox(value=999, step=1, int=True, suffix="V")),41    ("Int with custom formatting", 42     pg.SpinBox(value=4567, step=1, int=True, bounds=[0,None], format='0x{value:X}', 43                regex='(0x)?(?P<number>[0-9a-fA-F]+)$',44                evalFunc=lambda s: ast.literal_eval('0x'+s))),45    ("Integer with bounds=[10, 20] and wrapping",46     pg.SpinBox(value=10, bounds=[10, 20], int=True, minStep=1, step=1, wrapping=True)),47]48 49 50win = QtWidgets.QMainWindow()51win.setWindowTitle('pyqtgraph example: SpinBox')52cw = QtWidgets.QWidget()53layout = QtWidgets.QGridLayout()54cw.setLayout(layout)55win.setCentralWidget(cw)56win.show()57#win.resize(300, 600)58changingLabel = QtWidgets.QLabel()  ## updated immediately59changedLabel = QtWidgets.QLabel()   ## updated only when editing is finished or mouse wheel has stopped for 0.3sec60changingLabel.setMinimumWidth(200)61font = changingLabel.font()62font.setBold(True)63font.setPointSize(14)64changingLabel.setFont(font)65changedLabel.setFont(font)66labels = []67 68 69def valueChanged(sb):70    changedLabel.setText("Final value: %s" % str(sb.value()))71 72def valueChanging(sb, value):73    changingLabel.setText("Value changing: %s" % str(sb.value()))74 75    76for text, spin in spins:77    label = QtWidgets.QLabel(text)78    labels.append(label)79    layout.addWidget(label)80    layout.addWidget(spin)81    spin.sigValueChanged.connect(valueChanged)82    spin.sigValueChanging.connect(valueChanging)83 84layout.addWidget(changingLabel, 0, 1)85layout.addWidget(changedLabel, 2, 1)86 87 88#def mkWin():89    #win = QtWidgets.QMainWindow()90    #g = QtWidgets.QFormLayout()91    #w = QtWidgets.QWidget()92    #w.setLayout(g)93    #win.setCentralWidget(w)94    #s1 = SpinBox(value=5, step=0.1, bounds=[-1.5, None], suffix='units')95    #t1 = QtWidgets.QLineEdit()96    #g.addRow(s1, t1)97    #s2 = SpinBox(value=10e-6, dec=True, step=0.1, minStep=1e-6, suffix='A', siPrefix=True)98    #t2 = QtWidgets.QLineEdit()99    #g.addRow(s2, t2)100    #s3 = SpinBox(value=1000, dec=True, step=0.5, minStep=1e-6, bounds=[1, 1e9], suffix='Hz', siPrefix=True)101    #t3 = QtWidgets.QLineEdit()102    #g.addRow(s3, t3)103    #s4 = SpinBox(int=True, dec=True, step=1, minStep=1, bounds=[-10, 1000])104    #t4 = QtWidgets.QLineEdit()105    #g.addRow(s4, t4)106 107    #win.show()108 109    #import sys110    #for sb in [s1, s2, s3,s4]:111 112        ##QtCore.QObject.connect(sb, QtCore.SIGNAL('valueChanged(double)'), lambda v: sys.stdout.write(str(sb) + " valueChanged\n"))113        ##QtCore.QObject.connect(sb, QtCore.SIGNAL('editingFinished()'), lambda: sys.stdout.write(str(sb) + " editingFinished\n"))114        #sb.sigValueChanged.connect(valueChanged)115        #sb.sigValueChanging.connect(valueChanging)116        #sb.editingFinished.connect(lambda: sys.stdout.write(str(sb) + " editingFinished\n"))117    #return win, w, [s1, s2, s3, s4]118#a = mkWin()119 120 121#def test(n=100):122    #for i in range(n):123        #win, w, sb = mkWin()124        #for s in sb:125            #w.setParent(None)126            #s.setParent(None)127            #s.valueChanged.disconnect()128            #s.editingFinished.disconnect()129 130 131if __name__ == '__main__':132    pg.exec()133