class ImageToolTip(QtGui.QWidget):
def __init__(self, parent):
QtGui.QWidget.__init__(self, parent, QtCore.Qt.ToolTip or QtCore.Qt.BypassGraphicsProxyWidget)
self.parent = parent
self.waitWidget = WaitWidget(self)
self.waitWidget.setSizePolicy(QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed))
self.waitWidget.hide()
self.imageLabel = QtGui.QLabel(self)
self.imageLabel.hide()
self.dummyWidget = QtGui.QLabel("n/a", self)
self.dummyWidget.hide()
self.layout = QtGui.QVBoxLayout(self)
self.layout.setAlignment(QtCore.Qt.AlignHCenter or QtCore.Qt.AlignVCenter)
self.setLayout(self.layout)
self.hideTimer = QtCore.QTimer(self)
self.hideTimer.timeout.connect(self.OnTimer)
self.hideTimer.setSingleShot(True)
QtCore.QCoreApplication.instance().installEventFilter(self)
self.ShowWaitWidget()
def eventFilter(self, obj, event):
if (event.type() == QtCore.QEvent.WindowActivate
or event.type() == QtCore.QEvent.WindowDeactivate
or event.type() == QtCore.QEvent.FocusIn
or event.type() == QtCore.QEvent.FocusOut
or event.type() == QtCore.QEvent.MouseButtonPress
or event.type() == QtCore.QEvent.MouseButtonRelease
or event.type() == QtCore.QEvent.MouseButtonDblClick
or event.type() == QtCore.QEvent.Wheel):
self.hideTipImmediately()
if event.type() == QtCore.QEvent.Leave:
self.hideTip()
return False
def showTip(self, pos, pixmap = None):
self.SetPixmap(pixmap)
self.hideTimer.stop()
self.move(pos + QtCore.QPoint(2, 21))
self.show()
def hideTip(self):
if not self.hideTimer.isActive():
self.hideTimer.start(300)
def hideTipImmediately(self):
self.hideTimer.stop()
self.hide()
def OnTimer(self):
self.hideTipImmediately()
def SetWidget(self, widget):
if self.layout.count() > 1:
print("suspicious layout items count")
return
if self.layout.count() != 0:
if self.layout.itemAt(0).widget() == widget: return
else:
self.layout.itemAt(0).widget().hide()
self.layout.removeWidget(self.layout.itemAt(0).widget())
self.layout.addWidget(widget)
widget.show()
self.layout.layout()
def ShowWaitWidget(self):
self.SetWidget(self.waitWidget)
self.waitWidget.Start()
def ShowImageWidget(self, pixmap):
self.imageLabel.setPixmap(pixmap)
self.SetWidget(self.imageLabel)
self.waitWidget.Stop()
def ShowDummyWidget(self):
self.SetWidget(self.dummyWidget)
self.waitWidget.Stop()
def SetPixmap(self, pixmap):
if pixmap is None: self.ShowWaitWidget()
elif pixmap.isNull(): self.ShowDummyWidget()
else: self.ShowImageWidget(pixmap)
def paintEvent(self, event):
options = QtGui.QStyleOptionFrame()
options.initFrom(self)
painter = QtGui.QStylePainter()
painter.begin(self)
painter.drawPrimitive(QtGui.QStyle.PE_PanelTipLabel, options)
painter.end()
