class MyGraphicsView(QGraphicsView):
'''
GV with GS having an item.
When mouse pressed, emit signal to open QML context menu (mocking a pick of an item.)
'''
def __init__(self, pickerView):
scene = QGraphicsScene()
scene.addText(
"QGraphicsItem in QGraphicsView. Press mouse to mock pick, key to open dialog."
)
QGraphicsView.__init__(self, scene)
# Accept touch on both this widget and viewport (abstract scroll area)
# Touch engenders LMB mouse press event since app attribute for that is set.
self.setAttribute(Qt.WA_AcceptTouchEvents)
self.viewport().setAttribute(Qt.WA_AcceptTouchEvents)
self.qmlMaster = QmlMaster()
'''
See the QML, created there?
" A Person model which is mock-picked"
self.model = Person()
'''
if pickerView is not None:
self.pickerView = pickerView
self.pickDelegate = self.qmlMaster.findComponent(
self.pickerView,
className=model.person.Person,
objectName="person")
self.dialogDelegate = self.qmlMaster.findComponent(
self.pickerView,
className=model.qmlDelegate.QmlDelegate,
objectName="dialogDelegate")
else:
self.pickDelegate = None
self.dialogDelegate = None
#self.findQMLControl()
def touchEvent(self, event):
print("Touch event")
def mousePressEvent(self, event):
'''
Treat any mousePressEvent as a mock pick of the QGraphicsItem.
'''
if self.pickDelegate is not None:
self.pickDelegate.activate() # cause signal to be emitted to QML
print("Mouse pressed")
def keyPressEvent(self, event):
'''
Any key opens dialog.
'''
print("Key pressed")
if self.dialogDelegate is not None:
self.dialogDelegate.activate()
class MyGraphicsView(QGraphicsView):
"""
GV with GS having an item.
When mouse pressed, emit signal to open QML context menu (mocking a pick of an item.)
"""
def __init__(self, pickerView):
scene = QGraphicsScene()
scene.addText("QGraphicsItem in QGraphicsView. Press mouse to mock pick, key to open dialog.")
QGraphicsView.__init__(self, scene)
# Accept touch on both this widget and viewport (abstract scroll area)
# Touch engenders LMB mouse press event since app attribute for that is set.
self.setAttribute(Qt.WA_AcceptTouchEvents)
self.viewport().setAttribute(Qt.WA_AcceptTouchEvents)
self.qmlMaster = QmlMaster()
"""
See the QML, created there?
" A Person model which is mock-picked"
self.model = Person()
"""
if pickerView is not None:
self.pickerView = pickerView
self.pickDelegate = self.qmlMaster.findComponent(
self.pickerView, className=model.person.Person, objectName="person"
)
self.dialogDelegate = self.qmlMaster.findComponent(
self.pickerView, className=model.qmlDelegate.QmlDelegate, objectName="dialogDelegate"
)
else:
self.pickDelegate = None
self.dialogDelegate = None
# self.findQMLControl()
def touchEvent(self, event):
print("Touch event")
def mousePressEvent(self, event):
"""
Treat any mousePressEvent as a mock pick of the QGraphicsItem.
"""
if self.pickDelegate is not None:
self.pickDelegate.activate() # cause signal to be emitted to QML
print("Mouse pressed")
def keyPressEvent(self, event):
"""
Any key opens dialog.
"""
print("Key pressed")
if self.dialogDelegate is not None:
self.dialogDelegate.activate()
def __init__(self, embeddedQml, secondEmbeddedQml=None):
super().__init__(sys.argv)
print("On mobile platform, synthesizing LMB mouse events from touch.")
self.setAttribute(Qt.AA_SynthesizeMouseForUnhandledTouchEvents,
on=True)
'''
Register our Python model (classes/types to be registered with QML.)
'''
model = QmlModel()
model.register()
qmlMaster = QmlMaster()
" simple widget, not QMainWindow"
mainWindow = QWidget()
self.mainWindow = mainWindow # keep referenceid: toolbarLayout
mainWindow.setGeometry(100, 100, 500, 400)
mainWindow.show()
mainQWindow = qmlMaster.appQWindow()
" mainWindow has layout has widget has quickview"
layout = QVBoxLayout()
'''
Embed QML to main window.
Typically a toolbar or dialog
'''
##widget = qmlMaster.widgetForQML(qmlFilename=embeddedQml, parentWindow=mainWindow)
##widget, quickthing = qmlMaster.widgetAndQuickViewForQML(qmlFilename=embeddedQml, parentWindow=mainWindow)
widget, quickthing = qmlMaster.widgetForQMLUsingQQuickWidget(
qmlFilename=embeddedQml, parentWindow=mainWindow)
"No need to show() the quickview or the container QWidget? Has strange effects."
widget.show()
print("Height of widget embedding QML:", widget.height())
print("Widget embedding QML isVisible:", widget.isVisible())
layout.addWidget(widget)
" first embeddedQml might have a delegate"
firstDelegate = qmlMaster.findComponent(quickthing,
className=QmlDelegate,
objectName="dialogDelegate")
print("Delegate in first qml:", firstDelegate)
if secondEmbeddedQml is not None:
myView = self._createSecondQuickView(qmlMaster,
qmlFilename=secondEmbeddedQml,
transientParent=mainQWindow)
else:
myView = None
" Create QGV that on mouse down (a pick) opens another top level window embedding QML (pickerView) "
gv = MyGraphicsView(pickerView=myView)
layout.addWidget(gv)
mainWindow.setLayout(layout)
" Some connections are defined inside the QML"
'''
Connect optional delegate of first qml to delegate of second.
Example: ToolButton in first qml onTriggered calls firstDelegate.activate() which emits signal
which we here connect to secondDelegate.activate() which is connected in second qml to dialog.open().
Thus, user push ToolButton opens a dialog.
'''
if firstDelegate is not None and gv.dialogDelegate is not None:
firstDelegate.activated.connect(gv.dialogDelegate.activate)
def __init__(self, embeddedQml, secondEmbeddedQml=None):
super().__init__(sys.argv)
print("On mobile platform, synthesizing LMB mouse events from touch.")
self.setAttribute(Qt.AA_SynthesizeMouseForUnhandledTouchEvents, on=True)
"""
Register our Python model (classes/types to be registered with QML.)
"""
model = QmlModel()
model.register()
qmlMaster = QmlMaster()
" simple widget, not QMainWindow"
mainWindow = QWidget()
self.mainWindow = mainWindow # keep referenceid: toolbarLayout
mainWindow.setGeometry(100, 100, 500, 400)
mainWindow.show()
mainQWindow = qmlMaster.appQWindow()
" mainWindow has layout has widget has quickview"
layout = QVBoxLayout()
"""
Embed QML to main window.
Typically a toolbar or dialog
"""
##widget = qmlMaster.widgetForQML(qmlFilename=embeddedQml, parentWindow=mainWindow)
##widget, quickthing = qmlMaster.widgetAndQuickViewForQML(qmlFilename=embeddedQml, parentWindow=mainWindow)
widget, quickthing = qmlMaster.widgetForQMLUsingQQuickWidget(qmlFilename=embeddedQml, parentWindow=mainWindow)
"No need to show() the quickview or the container QWidget? Has strange effects."
widget.show()
print("Height of widget embedding QML:", widget.height())
print("Widget embedding QML isVisible:", widget.isVisible())
layout.addWidget(widget)
" first embeddedQml might have a delegate"
firstDelegate = qmlMaster.findComponent(quickthing, className=QmlDelegate, objectName="dialogDelegate")
print("Delegate in first qml:", firstDelegate)
if secondEmbeddedQml is not None:
myView = self._createSecondQuickView(qmlMaster, qmlFilename=secondEmbeddedQml, transientParent=mainQWindow)
else:
myView = None
" Create QGV that on mouse down (a pick) opens another top level window embedding QML (pickerView) "
gv = MyGraphicsView(pickerView=myView)
layout.addWidget(gv)
mainWindow.setLayout(layout)
" Some connections are defined inside the QML"
"""
Connect optional delegate of first qml to delegate of second.
Example: ToolButton in first qml onTriggered calls firstDelegate.activate() which emits signal
which we here connect to secondDelegate.activate() which is connected in second qml to dialog.open().
Thus, user push ToolButton opens a dialog.
"""
if firstDelegate is not None and gv.dialogDelegate is not None:
firstDelegate.activated.connect(gv.dialogDelegate.activate)
