""" Scope on render times of the widget itself!

"""

import time

from lognplot.qt.qtapi import QtWidgets

from lognplot.tsdb import TsDb

from lognplot.qt.widgets import ChartWidget

def main():

app = QtWidgets.QApplication([])

w = AutoScopeGraphWidget()

w.show()

app.exec()

class BenchmarkedChartWidget(ChartWidget):

def __init__(self, db, callback):

super().__init__(db)

self._callback = callback

def paintEvent(self, e):

t1 = time.time()

super().paintEvent(e)

t2 = time.time()

duration = t2 - t1

self._callback(t1, duration)

class AutoScopeGraphWidget(QtWidgets.QWidget):

def __init__(self):

super().__init__()

self._db = TsDb()

def append_measurement(t, duration):

self._db.add_sample("S1", (t, duration))

self._chart_widget = BenchmarkedChartWidget(self._db, append_measurement)

self._chart_widget.add_curve("S1", "red")

l = QtWidgets.QVBoxLayout()

l.addWidget(self._chart_widget)

self.setLayout(l)

self.resize(600, 400)

if __name__ == "__main__":

main()