Thanks for checking that, Justin. I could have sworn that I tried this in Maya 2016 and had the same problem but now that I try it there, it seems to work fine. I've been barking up the wrong tree. Now I have to figure out if the drag-and-drop in 2017 is just implemented differently or broken.
Thanks again, Alec On Saturday, November 12, 2016 at 1:59:52 PM UTC-8, Justin Israel wrote: > > Your code works under Maya 2015 / PySide (with the import statements > adjusted for PySide and shiboken) > > Not sure if this is specific to Maya 2017 + PySide2 > > - Justin > > > On Sun, Nov 13, 2016 at 10:09 AM Alec Fredericks <[email protected] > <javascript:>> wrote: > >> Thanks for the reply, Justin. >> Oddly -- or maybe not, based on my code -- the drag-and-drop eventFilter >> still doesn't seem to recognize either DragEnter or Drop. >> >> If anyone has a chance to look at this chunk of code that I ripped out of >> the rest of my code to simplify things, it's much appreciated. If I'm >> missing something fundamental, it would be great to know that, too. >> I've cobbled things together from disparate corners of the web, so maybe >> I'm just not seeing something important. >> >> import maya.cmds as mc >> import maya.mel as mm >> import maya.OpenMayaUI as omui >> from Qt.QtCore import * >> from Qt.QtGui import * >> from Qt.QtWidgets import * >> from maya.app.general.mayaMixin import MayaQWidgetBaseMixin, >> MayaQWidgetDockableMixin >> from shiboken2 import wrapInstance >> import os >> import sys >> from pprint import pprint >> >> # set global values for the main window >> >> def getMayaWindow(): >> mayaMainWindowPtr = omui.MQtUtil.mainWindow() >> return wrapInstance(long(mayaMainWindowPtr), QWidget) >> >> class MainWindowFilter(QObject): >> def eventFilter(self, receiver, event): >> self.receiver = receiver >> """ >> if event.type() is QEvent.Enter: >> print("ENTER EVENT, FOOL!") >> self.mouse_button = QApplication.mouseButtons() >> #event.accept() >> return False >> """ >> if event.type() is QEvent.DragEnter: >> print("DRAG ENTERED!") >> event.accept() >> >> """ >> if e.mimeData().hasFormat('text/plain'): >> event.accept() >> else: >> event.ignore() >> """ >> >> if event.type() is QEvent.Drop: >> print("DROPPED") >> library_w = event.source() >> if self.mouse_button == Qt.LeftButton: >> print 'you dropped the bomb.' >> else: >> print 'nothing dropped.' >> >> return False >> >> global filter >> filter = MainWindowFilter() >> >> >> class CreateMainWindow(QMainWindow): >> def __init__(self, *args, **kwargs): >> super(CreateMainWindow, self).__init__(*args, **kwargs) >> >> self.mayaMainWindow = getMayaWindow() >> >> self.mayaMainWindow.setAcceptDrops(True) >> self.mayaMainWindow.installEventFilter(filter) >> >> self.initUI() >> >> >> def initUI(self): >> mainHBox = QHBoxLayout(self) >> >> label1 = MyLabel(self) >> >> mainHBox.addWidget(label1) >> # Parent under main Maya window >> self.setParent(self.mayaMainWindow) >> self.setWindowFlags(Qt.Window) >> >> #self.setObjectName('CreateMainWindow_611') >> self.setWindowTitle('Drag This') >> self.setGeometry(100, 100, 550, 350) >> >> >> >> def closeEvent(self, e): >> ''' >> Make sure the eventFilter is removed >> ''' >> print 'closeEvent' >> self.mayaMainWindow.removeEventFilter(filter) >> return super(CreateMainWindow, self).closeEvent(e) >> >> >> class MyLabel(QLabel): >> def __init__(self, parent): >> super(MyLabel, self).__init__(parent) >> >> self.setStyleSheet(""" >> background-color: black; >> color: white; >> font: bold; >> padding: 6px; >> border-width: 2px; >> border-style: solid; >> border-radius: 16px; >> border-color: white; >> """) >> >> def mouseMoveEvent(self, e): >> print 'e.buttons() = {}'.format(e.buttons()) >> if e.buttons() != Qt.LeftButton: >> print 'Left button not detected.' >> return >> else: >> print 'Left button press detected.' >> >> # grab the button to a pixmap >> pixmap = QPixmap.grabWidget(self) >> >> >> # write the relative cursor position to mime data >> mimeData = QMimeData() >> # simple string with 'x,y' >> mimeData.setText('%d,%d' % (e.x(), e.y())) >> >> # make a QDrag >> drag = QDrag(self) >> # put our MimeData >> drag.setMimeData(mimeData) >> # set its Pixmap >> drag.setPixmap(pixmap) >> # shift the Pixmap so that it coincides with the cursor position >> drag.setHotSpot(e.pos()) >> >> >> # below makes the pixmap half transparent >> painter = QPainter(pixmap) >> painter.setCompositionMode(painter.CompositionMode_DestinationIn) >> painter.fillRect(pixmap.rect(), QColor(0, 0, 0, 127)) >> painter.end() >> >> mainWinDrag = QDrag(self) >> dropAction = drag.start(Qt.MoveAction) >> # start the drag operation >> # exec_ will return the accepted action from dropEvent >> #drag.exec_(Qt.DropAction.) >> if dropAction == Qt.MoveAction: >> print 'moved' >> else: >> print 'MoveAction = {}'.format(drag.exec_(Qt.MoveAction)) >> print 'copied' >> >> >> def main(): >> ui = CreateMainWindow() >> ui.show() >> # ui.show(dockable=True, floating=True) >> >> main() >> >> >> >> >> On Wednesday, November 9, 2016 at 12:29:14 PM UTC-8, Justin Israel wrote: >> >>> >>> >>> On Thu, Nov 10, 2016 at 6:21 AM Alec Fredericks <[email protected]> >>> wrote: >>> >>>> Hi there, >>>> I think I'm misunderstanding something fundamental about QT and Maya UI >>>> interactions. >>>> I've created a small PyQt window that contains some tabs and, in one of >>>> my test tabs, I have a grid populated by a couple of custom QLabel widgets. >>>> Those widgets are the bits I want to drag into the Maya viewport and, >>>> in turn, execute some code when the drop is recognized. >>>> >>>> In my custom QLabel, I have a dragEnterEvent and mousePressEvent. >>>> >>>> For the main Maya window, I install an eventFilter that checks for >>>> QEvent.Enter, DragEnter and Drop. >>>> >>>> The eventFilter only ever seems to fire off the QEvent.Enter code but >>>> never DragEnter or Drop. >>>> >>> >>> I would try not accepting the event + returning True in your block that >>> handles QEvent.Enter. That indicates that you want to swallow the event and >>> the viewport will never see it it to do any custom handling. Does it start >>> working when you ditch that block or at least just return False? I have >>> viewport code that looks similar to your DragEnter and Drop blocks. >>> >>> Also, your source label widgets shouldn't need a dragEnterEvent defined >>> on them. That is for the case where they want to accept things dropped on >>> them. >>> >>> >>>> >>>> Here's my eventFilter: >>>> >>>> def eventFilter(self, receiver, event): >>>> self.receiver = receiver >>>> >>>> if event.type() is QEvent.Enter: >>>> print("ENTERED, FOOL!") >>>> self.mouse_button = QApplication.mouseButtons() >>>> event.accept() >>>> return True >>>> >>>> if event.type() is QEvent.DragEnter: >>>> print("DRAG ENTERED!") >>>> self.mouse_button = QApplication.mouseButtons() >>>> event.accept() >>>> return True >>>> >>>> if event.type() is QEvent.Drop: >>>> print("DROPPED") >>>> library_w = event.source() >>>> if self.mouse_button == Qt.LeftButton: >>>> print 'you dropped the bomb.' >>>> return True >>>> else: >>>> print 'nothing dropped.' >>>> >>>> Is there something more I need to do to get DragEnter and Drop to >>>> function in the eventFilter? >>>> >>>> Thanks, >>>> Alec >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Python Programming for Autodesk Maya" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/python_inside_maya/4565ad58-3009-4ef6-a9ae-3a28e390aab2%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/python_inside_maya/4565ad58-3009-4ef6-a9ae-3a28e390aab2%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "Python Programming for Autodesk Maya" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/python_inside_maya/360a57bf-1253-4bb8-9908-62ade6fef4af%40googlegroups.com >> >> <https://groups.google.com/d/msgid/python_inside_maya/360a57bf-1253-4bb8-9908-62ade6fef4af%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. 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