def createEventHandler(uievent, pending_actions):
"""Create an event handler for Houdini's network editor.
:param uievent: The occurring event.
:type uievent: canvaseventtypes.KeyboardEvent
:param pending_actions: Pending actions.
:type pending_actions: list
:return: Handler event information.
:rtype: tuple
"""
if isinstance(uievent,
KeyboardEvent) and uievent.eventtype in KEY_HIT_TYPES:
editor = uievent.editor
eventtype = uievent.eventtype
key = uievent.key
if setKeyPrompt(editor, key, "h.tool:copy_items", eventtype):
return paste.copy_items_from_graph(editor)
elif setKeyPrompt(editor, key, "h.tool:paste_items", eventtype):
return paste.paste_items_to_graph(eventtype, editor, uievent)
return None, False
def createEventHandler(uievent, pending_actions):
"""Create an event handler for Houdini's network editor."""
if isinstance(uievent, KeyboardEvent) and uievent.eventtype in ('keyhit', 'menukeyhit', 'parentkeyhit'):
editor = uievent.editor
eventtype = uievent.eventtype
key = uievent.key
if setKeyPrompt(editor, key, "h.tool:copy_items", eventtype):
return paste.copy_items_from_graph(editor)
elif setKeyPrompt(editor, key, "h.tool:paste_items", eventtype):
return paste.paste_items_to_graph(eventtype, editor, uievent)
return None, False
def createEventHandler(uievent, pending_actions):
"""Create an event handler for Houdini's network editor."""
if isinstance(uievent, KeyboardEvent) and uievent.eventtype in (
'keyhit', 'menukeyhit', 'parentkeyhit'):
editor = uievent.editor
eventtype = uievent.eventtype
key = uievent.key
if setKeyPrompt(editor, key, "h.tool:copy_items", eventtype):
return paste.copy_items_from_graph(editor)
elif setKeyPrompt(editor, key, "h.tool:paste_items", eventtype):
return paste.paste_items_to_graph(eventtype, editor, uievent)
return None, False
def handleEventCoroutine():
visiblebounds = hou.BoundingRect()
halfsize = utils.getNewNodeHalfSize()
minsize = min(halfsize.x(), halfsize.y())
maxsize = max(halfsize.x(), halfsize.y())
inputnames = ('input', 'multiinput', 'dotinput')
outputnames = ('output', 'indirectinputoutput', 'dotoutput')
alignrects = []
shapes = []
nodecenter = None
locatedconn = None
locatedinput = None
locatedoutput = None
handler = None
editor = None
olddefaultcursor = None
while True:
uievent = yield
if editor is None:
editor = uievent.editor
olddefaultcursor = editor.defaultCursor()
if handler is not None:
handler = sendEventToHandler(handler, uievent, shapes)
if handler is None:
editor.setDefaultCursor(olddefaultcursor)
continue
newvisiblebounds = editor.visibleBounds()
if visiblebounds != newvisiblebounds:
alignrects = editor.allVisibleRects([])
visiblebounds = newvisiblebounds
if (isinstance(uievent, KeyboardEvent) or \
isinstance(uievent, MouseEvent)):
if nodecenter is None:
nodecenter = uievent.mousepos
nodecenter = editor.posFromScreen(nodecenter)
# Check for a wire to drop the node on, if that pref is enabled.
# Don't update the target on a mouse up event. We want to keep
# the located/selected target from the last mouse event, since the
# selected value gets cleared on the mouseup event.
if prefs.allowDropOnWire(editor) and uievent.eventtype != 'mouseup':
target = None
if isinstance(uievent, MouseEvent) and \
uievent.selected.item is not None:
target = uievent.selected
elif uievent.located.item is not None:
target = uievent.located
locatedconn = None
locatedinput = None
locatedoutput = None
if target is not None:
if isinstance(target.item, hou.NodeConnection):
locatedconn = target
elif target.name in inputnames:
locatedinput = target
elif target.name in outputnames:
locatedoutput = target
if locatedconn is None and \
locatedinput is None and \
locatedoutput is None:
editor.setDefaultCursor(None)
else:
editor.setDefaultCursor(utils.theCursorDragDropOn)
if isinstance(uievent, KeyboardEvent):
if uievent.eventtype.endswith('keyhit') and \
display.setKeyPrompt(editor, uievent.key,
'h.pane.wsheet.cancel', uievent.eventtype):
break
if uievent.eventtype.endswith('keyhit') and \
display.setKeyPrompt(editor, uievent.key,
'h.pane.wsheet.add_op', uievent.eventtype):
# Indicate that the keyboard event should be sent again, which
# will allow it to be handled by the parent context (and open
# up the tab menu).
editor.handleCurrentKeyboardEvent(True)
break
elif uievent.eventtype == 'keyhit' and uievent.key == 'Enter':
editor.eventContextData()['pos'] = nodecenter - halfsize
setEventContextData(editor.eventContextData(),
locatedconn, locatedinput, locatedoutput)
break
elif uievent.eventtype == 'keyhit' and uievent.key == 'Shift+Enter':
editor.eventContextData()['pos'] = None
setEventContextData(editor.eventContextData(),
locatedconn, locatedinput, locatedoutput)
break
elif isinstance(uievent, MouseEvent):
if uievent.eventtype == 'mousewheel':
view.scaleWithMouseWheel(uievent)
elif uievent.eventtype == 'mousedown':
if uievent.selected.name.startswith('overview'):
handler = base.OverviewMouseHandler(uievent)
elif base.isPanEvent(uievent):
handler = base.ViewPanHandler(uievent)
elif base.isScaleEvent(uievent):
handler = base.ViewScaleHandler(uievent)
if handler is not None:
editor.setDefaultCursor(olddefaultcursor)
handler = sendEventToHandler(handler, uievent, shapes)
elif uievent.eventtype == 'mouseup':
editor.eventContextData()['pos'] = nodecenter - halfsize
setEventContextData(editor.eventContextData(),
locatedconn, locatedinput, locatedoutput)
break
else:
nodecenter = uievent.mousepos
nodecenter = editor.posFromScreen(nodecenter)
category = editor.pwd().childTypeCategory()
# If we are showing a preview of the node shape, we need to
# pass a large square to ensure the shape draws at the
# expected size.
if prefs.showNodeShapes(editor) and \
category != hou.vopNodeTypeCategory():
halfmaxsize = hou.Vector2(maxsize, maxsize)
rect = hou.BoundingRect(nodecenter - halfmaxsize,
nodecenter + halfmaxsize)
else:
rect = hou.BoundingRect(nodecenter - halfsize,
nodecenter + halfsize)
snapresult = snap.snap(editor, None, rect, alignrects)
if snapresult.isValid():
nodecenter += snapresult.delta()
rect.translate(snapresult.delta())
'''
if prefs.showNodeShapes(editor):
nodeshape = ''
nodetypename = editor.eventContextData()['nodetypename']
if category is not None:
nodetype = category.nodeType(nodetypename)
if nodetype is not None:
nodeshape = nodetype.defaultShape()
shapes = [hou.NetworkShapeNodeShape(rect, nodeshape,
hou.ui.colorFromName('GraphPreSelection'),
0.5, True, False)]
else:
shapes = [hou.NetworkShapeBox(rect,
hou.ui.colorFromName('GraphPreSelection'),
0.5, True, False)]'''
shapes = snapresult.shapes(editor)
shapes.extend(buildPendingWires(editor, nodecenter, locatedconn, locatedinput, locatedoutput))
editor.setOverlayShapes(shapes)
if editor is not None:
editor.setDefaultCursor(olddefaultcursor)
editor.setOverlayShapes([])
editor.popEventContext()