def addROI(self,roi = None):
if self.roiwidget is None:
self.roiwidget = ROIPlotWidget(roi_target = self.p1,
view = self.view,
parent = self)
roiTab = QDockWidget("roi cam {0}".format(self.iCam), self)
roiTab.setWidget(self.roiwidget)
roiTab.setAllowedAreas(Qt.LeftDockWidgetArea |
Qt.RightDockWidgetArea |
Qt.BottomDockWidgetArea |
Qt.TopDockWidgetArea)
roiTab.setFeatures(QDockWidget.DockWidgetMovable |
QDockWidget.DockWidgetFloatable |
QDockWidget.DockWidgetClosable)
self.parent.addDockWidget(Qt.BottomDockWidgetArea
,roiTab)
roiTab.setFloating(True)
roiTab.resize(600,150)
def closetab(ev):
# This probably does not clean up memory...
if not self.roiwidget is None:
[self.p1.removeItem(r)
for r in self.roiwidget.items()]
del self.roiwidget
self.roiwidget = None
ev.accept()
roiTab.closeEvent = closetab
self.roiwidget.add_roi(roi)
def histogramWin(self):
if self.hist is None:
histTab = QDockWidget("histogram cam {0}".format(self.iCam), self)
widget = QWidget()
layout = QGridLayout()
widget.setLayout(layout)
win = pg.GraphicsLayoutWidget()
p1 = win.addPlot()
p1.getViewBox().invertY(True)
p1.hideAxis('left')
p1.hideAxis('bottom')
self.hist = pg.HistogramLUTItem()
self.hist.axis.setPen('k')
p1.addItem(self.hist)
self.hist.setImageItem(self.view)
layout.addWidget(win,0,0)
histTab.setWidget(widget)
histTab.setAllowedAreas(Qt.LeftDockWidgetArea |
Qt.RightDockWidgetArea |
Qt.BottomDockWidgetArea |
Qt.TopDockWidgetArea)
histTab.setFeatures(QDockWidget.DockWidgetMovable |
QDockWidget.DockWidgetFloatable |
QDockWidget.DockWidgetClosable)
self.parent.addDockWidget(Qt.BottomDockWidgetArea
,histTab)
histTab.setFloating(True)
histTab.resize(200,200)
try:
histstate = self.hist.saveState()
except Exception as err:
display('[ERROR] - could not save histogram state. "pip install pyqtgraph --upgrade" might solve it.')
print(err)
def closefun(ev):
try:
self.hist.restoreState(histstate)
except Exception as err:
print(err)
pass
self.hist = None
ev.accept()
histTab.closeEvent = closefun
