def mousePressEvent(self, event):
"""
React on a mouse event - move cursor to position of the event.
"""
if event.button() == Qt.RightButton:
event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
QPlainTextEdit.mousePressEvent(self, event)
def mousePressEvent(self, event):
"""
React on a mouse event - move cursor to position of the event.
"""
if event.button() == Qt.RightButton:
event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
QPlainTextEdit.mousePressEvent(self, event)
def mouseMoveEvent(self, event):
# for less calls to widgetsAt()
widgetsUnderCusor = self.widgetsAt(event.x(), event.y())
mouseEvent = MouseEvent.fromQtEvent(event)
if widgetsUnderCusor is not None:
for widget in widgetsUnderCusor:
mouseEvent.x -= widget.x() # adjust coordinates to widget top left
mouseEvent.y -= widget.y()
if not widget in self._widgetsPreviouslyUnderCursor:
widget._mouseEnterEvent(mouseEvent)
widget._mouseMoveEvent(mouseEvent)
mouseEvent.x += widget.x() # reset coordinates
mouseEvent.y += widget.y()
for widget in self._widgetsPreviouslyUnderCursor:
if not widget in widgetsUnderCusor:
mouseEvent.x -= widget.x() # adjust coordinates to widget top left
mouseEvent.y -= widget.y()
widget._mouseExitEvent(mouseEvent)
mouseEvent.x += widget.x() # reset coordinates
mouseEvent.y += widget.y()
# get ready for the next mouse move event
self._widgetsPreviouslyUnderCursor = self.widgetsAt(event.x(), event.y())
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(event.pos()),QPoint(event.globalPos()),
event.button(),event.buttons(),event.modifiers())
return QWidget.mouseMoveEvent(self, event)
def leaveEvent(self, event):
for widget in self.widgetsAt(self._previousMouseMoveEvent.x(), self._previousMouseMoveEvent.y()):
widget._mouseExitEvent(MouseEvent.fromQtEvent(self._previousMouseMoveEvent))
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(-1,-1),
Qt.NoButton,Qt.NoButton,Qt.NoModifier)
self._widgetsPreviouslyUnderCursor = []
def __init__(self):
QWidget.__init__(self)
self._properties = []
self._propertySets = []
self._view = None # to avoid errors when setting properties
self.width = IntProperty(self,self.width())
self.height = IntProperty(self,self.height())
self.setMouseTracking(True) # to receive certain events
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(-1,-1),
Qt.NoButton,Qt.NoButton,Qt.NoModifier)
self._widgetsPreviouslyUnderCursor = []
class OxideView(QWidget):
_widgets = ()
def __init__(self):
QWidget.__init__(self)
self._properties = []
self._propertySets = []
self._view = None # to avoid errors when setting properties
self.width = IntProperty(self,self.width())
self.height = IntProperty(self,self.height())
self.setMouseTracking(True) # to receive certain events
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(-1,-1),
Qt.NoButton,Qt.NoButton,Qt.NoModifier)
self._widgetsPreviouslyUnderCursor = []
def __setattr__(self, name, value):
if not hasattr(self, name): # if the attribute is being newly created
return super(QWidget, self).__setattr__(name,value)
# otherwise
attr = super(QWidget, self).__getattribute__(name) # get the attribute
if isinstance(attr, BaseProperty): # if it is an oxide property
return attr.setTo(value) # set the property
elif isinstance(attr, CompoundProperty):
return attr.setTo(value)
return super(QWidget, self).__setattr__(name,value) # otherwise use parent implementation
def widgetsFrontToBack(self):
if self._widgets: # widgets list is not empty
tmplist = list(self._widgets)
tmplist.reverse()
return tmplist # return the reversed list
def paintEvent(self, event):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
for widget in self._widgets:
painter.translate(widget.x(),widget.y()) # move the painter to the widget's coordinates
painter.setClipRect(0,0,widget.width(),widget.height()) # restrict the painting area
widget._paint(painter) # paint the widget
painter.translate(-widget.x(),-widget.y()) # get the painter ready for the next widget
painter.setClipRect(self.rect()) # to be painted
painter.end()
def addWidget(self,widget):
if not isinstance(widget, Widget): # type safety
raise TypeError, TypeErrorText('widget', "OxideView.addWidget", 'Widget')
self._widgets += (widget,) # add to the internal list of widgets
widget._view = self # allows for updating when properties are changed
def widgetsAt(self,x,y): # gets the widgets at the coordinates (x,y)
widgetsAtPoint = []
if self.widgetsFrontToBack() is None: return None # if the view has no widgets
for widget in self.widgetsFrontToBack(): # get the widgets in the front first
if QRect(widget.x(),widget.y(),widget.width(),widget.height()).contains(x,y):
widgetsAtPoint.append(widget) # if the cursor was within the bounds of this widget
return widgetsAtPoint
def mousePressEvent(self, qtevent):
event = MouseEvent.fromQtEvent(qtevent)
if self.widgetsAt(event.x,event.y) is not None:
for widget in self.widgetsAt(event.x,event.y):
event.x -= widget.x()
event.y -= widget.y()
if not Event.shouldPropagate(widget._mousePressEvent(event)):
return False
event.x += widget.x()
event.y += widget.y()
return QWidget.mousePressEvent(self, qtevent)
def mouseMoveEvent(self, event):
# for less calls to widgetsAt()
widgetsUnderCusor = self.widgetsAt(event.x(), event.y())
mouseEvent = MouseEvent.fromQtEvent(event)
if widgetsUnderCusor is not None:
for widget in widgetsUnderCusor:
mouseEvent.x -= widget.x() # adjust coordinates to widget top left
mouseEvent.y -= widget.y()
if not widget in self._widgetsPreviouslyUnderCursor:
widget._mouseEnterEvent(mouseEvent)
widget._mouseMoveEvent(mouseEvent)
mouseEvent.x += widget.x() # reset coordinates
mouseEvent.y += widget.y()
for widget in self._widgetsPreviouslyUnderCursor:
if not widget in widgetsUnderCusor:
mouseEvent.x -= widget.x() # adjust coordinates to widget top left
mouseEvent.y -= widget.y()
widget._mouseExitEvent(mouseEvent)
mouseEvent.x += widget.x() # reset coordinates
mouseEvent.y += widget.y()
# get ready for the next mouse move event
self._widgetsPreviouslyUnderCursor = self.widgetsAt(event.x(), event.y())
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(event.pos()),QPoint(event.globalPos()),
event.button(),event.buttons(),event.modifiers())
return QWidget.mouseMoveEvent(self, event)
def leaveEvent(self, event):
for widget in self.widgetsAt(self._previousMouseMoveEvent.x(), self._previousMouseMoveEvent.y()):
widget._mouseExitEvent(MouseEvent.fromQtEvent(self._previousMouseMoveEvent))
self._previousMouseMoveEvent = QMouseEvent(QEvent.HoverMove,QPoint(-1,-1),
Qt.NoButton,Qt.NoButton,Qt.NoModifier)
self._widgetsPreviouslyUnderCursor = []
def resizeEvent(self, event):
self.width = event.size().width()
self.height = event.size().height()
