def action(self, arg):
"""Handle the 3D scene events.
This is installed as an EventCallback in the Inventor view.
Parameters
----------
arg: dict
Dictionary with strings that indicates the type of event received
from the 3D view.
"""
import DraftGeomUtils
plane = App.DraftWorkingPlane
if arg["Type"] == "SoKeyboardEvent":
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event":
self.point, ctrlPoint, info = gui_tool_utils.getPoint(self, arg)
if (gui_tool_utils.hasMod(arg, gui_tool_utils.MODCONSTRAIN)
and self.constrainSeg):
dist = DraftGeomUtils.findPerpendicular(self.point,
self.shape,
self.constrainSeg[1])
else:
dist = DraftGeomUtils.findPerpendicular(self.point,
self.shape.Edges)
if dist:
self.ghost.on()
if self.mode == "Wire":
d = dist[0].negative()
v1 = DraftGeomUtils.getTangent(self.shape.Edges[0],
self.point)
v2 = DraftGeomUtils.getTangent(self.shape.Edges[dist[1]],
self.point)
a = -DraftVecUtils.angle(v1, v2, plane.axis)
self.dvec = DraftVecUtils.rotate(d, a, plane.axis)
occmode = self.ui.occOffset.isChecked()
utils.param.SetBool("Offset_OCC", occmode)
_wire = DraftGeomUtils.offsetWire(self.shape,
self.dvec,
occ=occmode)
self.ghost.update(_wire, forceclosed=occmode)
elif self.mode == "BSpline":
d = dist[0].negative()
e = self.shape.Edges[0]
basetan = DraftGeomUtils.getTangent(e, self.point)
self.npts = []
for p in self.sel.Points:
currtan = DraftGeomUtils.getTangent(e, p)
a = -DraftVecUtils.angle(currtan, basetan, plane.axis)
self.dvec = DraftVecUtils.rotate(d, a, plane.axis)
self.npts.append(p.add(self.dvec))
self.ghost.update(self.npts)
elif self.mode == "Circle":
self.dvec = self.point.sub(self.center).Length
self.ghost.setRadius(self.dvec)
self.constrainSeg = dist
self.linetrack.on()
self.linetrack.p1(self.point)
self.linetrack.p2(self.point.add(dist[0]))
self.ui.setRadiusValue(dist[0].Length, unit="Length")
else:
self.dvec = None
self.ghost.off()
self.constrainSeg = None
self.linetrack.off()
self.ui.radiusValue.setText("off")
self.ui.radiusValue.setFocus()
self.ui.radiusValue.selectAll()
if self.extendedCopy:
if not gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT):
self.finish()
gui_tool_utils.redraw3DView()
elif arg["Type"] == "SoMouseButtonEvent":
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
copymode = False
occmode = self.ui.occOffset.isChecked()
utils.param.SetBool("Offset_OCC", occmode)
if (gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT)
or self.ui.isCopy.isChecked()):
copymode = True
Gui.addModule("Draft")
if self.npts:
# _msg("offset:npts= " + str(self.npts))
_cmd = 'Draft.offset'
_cmd += '('
_cmd += 'FreeCAD.ActiveDocument.'
_cmd += self.sel.Name + ', '
_cmd += DraftVecUtils.toString(self.npts) + ', '
_cmd += 'copy=' + str(copymode)
_cmd += ')'
_cmd_list = ['offst = ' + _cmd,
'FreeCAD.ActiveDocument.recompute()']
self.commit(translate("draft", "Offset"),
_cmd_list)
elif self.dvec:
if isinstance(self.dvec, float):
delta = str(self.dvec)
else:
delta = DraftVecUtils.toString(self.dvec)
_cmd = 'Draft.offset'
_cmd += '('
_cmd += 'FreeCAD.ActiveDocument.'
_cmd += self.sel.Name + ', '
_cmd += delta + ', '
_cmd += 'copy=' + str(copymode) + ', '
_cmd += 'occ=' + str(occmode)
_cmd += ')'
_cmd_list = ['offst = ' + _cmd,
'FreeCAD.ActiveDocument.recompute()']
self.commit(translate("draft", "Offset"),
_cmd_list)
if gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT):
self.extendedCopy = True
else:
self.finish()
