Wie kann ich unterscheiden ob ein answerRect von meinem Target-Objekt
oder von einem Child des Target-Objekts kommt?
Code: Alles auswählen
#!/usr/bin/python
# -*- coding: utf-8 -*-
import sys
from PyQt4 import QtCore
from PyQt4.QtCore import *
from PyQt4 import QtGui
from PyQt4 import QtSvg
class dragdrop_target(QtGui.QFrame):
def __init__(self, ParentWidget, SvgString=""):
super(dragdrop_target, self).__init__(ParentWidget)
self.xpx = 200
self.ypx = 200
self.widthpx = 200
self.heightpx = 100
self.setAcceptDrops(True)
self.setStyleSheet("color:green")
self.setFrameStyle(1)
self.resize(self.widthpx,self.heightpx)
self.move(self.xpx,self.ypx)
self.child = QtGui.QFrame(self)
self.child.setAcceptDrops(False) #<=this does not disable the answerRect firing of the child
self.child.setStyleSheet("color:red")
self.child.setFrameStyle(1)
self.child.resize(20,20)
self.child.move(100,80)
def mouseMoveEvent(self, e):
if e.buttons() != QtCore.Qt.LeftButton:
return
mimeData = QtCore.QMimeData()
drag = QtGui.QDrag(self)
drag.setMimeData(mimeData)
drag.setHotSpot(e.pos() - self.rect().topLeft())
drag.start(QtCore.Qt.MoveAction)
def dragEnterEvent(self, e):
if e.source() != self:
e.accept()
print "target_dragEnter"
else:
e.ignore()
print "target_dragEnterIgnore"
def dragMoveEvent(self, e):
if e.source() != self:
e.accept()
print "target_dragMove"
#print e.answerRect()
posx = e.answerRect().x()
posy = e.answerRect().y()
print "x: " + str(posx) + "y: " + str(posy)
print e.source()
# case1: answerRect is from the target-object => all works fine
# case2: answerRect is from child of target-object => "northeast" is
# shown instead of "south" if source object is dragged over the child
if posx >= 0 and posx <= self.width() and posy >= 0 and posy <= self.height():
#source-object is moved inside target object
if posx >= self.width()/3 and posx <= self.width()*2/3 and posy <= self.height()*2/3:
print "north"
elif posx >= self.width()/3 and posx <= self.width()*2/3 and posy >= self.height()*2/3:
print "south"
elif posx <= self.width()/3 and posy >= self.height()/3 and posy <= self.height()*2/3:
print "west"
elif posx >= self.width()*2/3 and posy >= self.height()/3 and posy <= self.height()*2/3:
print "east"
elif posx < self.width()/3 and posy < self.height()/3:
print "northwest"
elif posx < self.width()/3 and posy > self.height()*2/3:
print "southwest"
elif posx > self.width()*2/3 and posy < self.height()/3:
print "northeast"
elif posx > self.width()*2/3 and posy > self.height()*2/3:
print "southeast"
else:
e.ignore()
print "target_dragMoveIgnore"
def dropEvent(self, e):
if e.source() != self:
e.accept()
print "target_drop"
else:
e.ignore()
print "target_dropIgnore"
def dragLeaveEvent(self, e):
e.accept()
print "target_dragLeave"
class dragdrop_source(QtGui.QFrame):
def __init__(self, ParentWidget, SvgString=""):
super(dragdrop_source, self).__init__(ParentWidget)
self.setAcceptDrops(True)
self.setStyleSheet("color:blue")
self.setFrameStyle(1)
self.resize(40,40)
self.move(150,100)
def mouseMoveEvent(self, e):
if e.buttons() != QtCore.Qt.LeftButton:
return
mimeData = QtCore.QMimeData()
drag = QtGui.QDrag(self)
drag.setMimeData(mimeData)
drag.setHotSpot(e.pos() - self.rect().topLeft())
drag.start(QtCore.Qt.MoveAction)
def dragEnterEvent(self, e):
if e.source() != self:
e.accept()
print "source_dragEnter"
else:
e.ignore()
print "source_dragEnterIgnore"
def dragMoveEvent(self, e):
if e.source() != self:
e.accept()
print "source_dragMove"
else:
e.ignore()
print "source_dragMoveIgnore"
def dropEvent(self, e):
if e.source() != self:
e.accept()
print "source_drop"
else:
e.ignore()
print "source_dropIgnore"
def dragLeaveEvent(self, e):
e.accept()
print "source_dragLeave"
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def dragEnterEvent(self, e):
e.accept()
print "panelDragEnter"
def dropEvent(self, e):
position = e.pos()
e.source().move(position)
e.setDropAction(QtCore.Qt.MoveAction)
e.accept()
print "panelDrop"
def initUI(self):
self.setGeometry(200, 200, 600, 600)
self.setAcceptDrops(True)
self.targetObject = dragdrop_target(self)
self.sourceObject = dragdrop_source(self)
#Set BackgroundColor
colorstr = 'white'
widget = self
pal = QtGui.QPalette(widget.palette())
pal.setColor(QtGui.QPalette.Background, QtGui.QColor(colorstr))
widget.setPalette(pal)
self.show()
def main():
app = QtGui.QApplication(sys.argv)
#app.setOverrideCursor()
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()