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gui_mirror.py
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gui_mirror.py
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# ***************************************************************************
# * (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
# * (c) 2009, 2010 Ken Cline <cline@frii.com> *
# * (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * FreeCAD is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with FreeCAD; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
"""Provides GUI tools to create mirrored objects.
The mirror tool creates a `Part::Mirroring` object, which is the same
as the one created by the Part module.
Perhaps in the future a specific Draft `Mirror` object can be defined.
"""
## @package gui_mirror
# \ingroup draftguitools
# \brief Provides GUI tools to create mirrored objects.
## \addtogroup draftguitools
# @{
from PySide.QtCore import QT_TRANSLATE_NOOP
import FreeCAD as App
import FreeCADGui as Gui
import Draft_rc
import DraftVecUtils
import WorkingPlane
import draftguitools.gui_base_original as gui_base_original
import draftguitools.gui_tool_utils as gui_tool_utils
from draftutils.messages import _msg
from draftutils.translate import translate
# The module is used to prevent complaints from code checkers (flake8)
True if Draft_rc.__name__ else False
class Mirror(gui_base_original.Modifier):
"""Gui Command for the Mirror tool."""
def GetResources(self):
"""Set icon, menu and tooltip."""
return {'Pixmap': 'Draft_Mirror',
'Accel': "M, I",
'MenuText': QT_TRANSLATE_NOOP("Draft_Mirror", "Mirror"),
'ToolTip': QT_TRANSLATE_NOOP("Draft_Mirror", "Mirrors the selected objects along a line defined by two points.")}
def Activated(self):
"""Execute when the command is called."""
self.name = translate("draft", "Mirror")
super(Mirror, self).Activated(name=self.name)
self.ghost = None
if self.ui:
if not Gui.Selection.getSelection():
self.ui.selectUi()
_msg(translate("draft", "Select an object to mirror"))
self.call = \
self.view.addEventCallback("SoEvent",
gui_tool_utils.selectObject)
else:
self.proceed()
def proceed(self):
"""Proceed with the command if one object was selected."""
if self.call:
self.view.removeEventCallback("SoEvent", self.call)
self.sel = Gui.Selection.getSelection()
self.ui.pointUi(title=self.name, icon="Draft_Mirror")
self.ui.modUi()
self.ui.xValue.setFocus()
self.ui.xValue.selectAll()
# self.ghost = trackers.ghostTracker(self.sel)
# TODO: solve this (see below)
self.call = self.view.addEventCallback("SoEvent", self.action)
_msg(translate("draft", "Pick start point of mirror line"))
self.ui.isCopy.hide()
def finish(self, closed=False, cont=False):
"""Terminate the operation of the tool."""
if self.ghost:
self.ghost.finalize()
super(Mirror, self).finish()
if cont and self.ui:
if self.ui.continueMode:
Gui.Selection.clearSelection()
self.Activated()
def mirror(self, p1, p2, copy=False):
"""Mirror the real shapes."""
sel = '['
for o in self.sel:
if len(sel) > 1:
sel += ', '
sel += 'FreeCAD.ActiveDocument.' + o.Name
sel += ']'
Gui.addModule("Draft")
_cmd = 'Draft.mirror'
_cmd += '('
_cmd += sel + ', '
_cmd += DraftVecUtils.toString(p1) + ', '
_cmd += DraftVecUtils.toString(p2)
_cmd += ')'
_cmd_list = ['m = ' + _cmd,
'FreeCAD.ActiveDocument.recompute()']
self.commit(translate("draft", "Mirror"),
_cmd_list)
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.
"""
if arg["Type"] == "SoKeyboardEvent":
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event": # mouse movement detection
(self.point,
ctrlPoint, info) = gui_tool_utils.getPoint(self, arg)
if len(self.node) > 0:
last = self.node[-1]
if self.ghost:
if self.point != last:
# TODO: the following doesn't work at the moment
mu = self.point.sub(last).normalize()
# This part used to test for the GUI to obtain
# the camera view but this is unnecessary
# as this command is always launched in the GUI.
_view = Gui.ActiveDocument.ActiveView
mv = _view.getViewDirection().negative()
mw = mv.cross(mu)
_plane = WorkingPlane.plane(u=mu, v=mv, w=mw,
pos=last)
tm = _plane.getPlacement().toMatrix()
m = self.ghost.getMatrix()
m = m.multiply(tm.inverse())
m.scale(App.Vector(1, 1, -1))
m = m.multiply(tm)
m.scale(App.Vector(-1, 1, 1))
self.ghost.setMatrix(m)
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"):
if self.point:
self.ui.redraw()
if (self.node == []):
self.node.append(self.point)
self.ui.isRelative.show()
if self.ghost:
self.ghost.on()
_msg(translate("draft",
"Pick end point of mirror line"))
if self.planetrack:
self.planetrack.set(self.point)
else:
last = self.node[0]
if (self.ui.isCopy.isChecked()
or gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT)):
self.mirror(last, self.point, True)
else:
self.mirror(last, self.point)
if gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT):
self.extendedCopy = True
else:
self.finish(cont=True)
def numericInput(self, numx, numy, numz):
"""Validate the entry fields in the user interface.
This function is called by the toolbar or taskpanel interface
when valid x, y, and z have been entered in the input fields.
"""
self.point = App.Vector(numx, numy, numz)
if not self.node:
self.node.append(self.point)
if self.ghost:
self.ghost.on()
_msg(translate("draft", "Pick end point of mirror line"))
else:
last = self.node[-1]
if self.ui.isCopy.isChecked():
self.mirror(last, self.point, True)
else:
self.mirror(last, self.point)
self.finish()
Gui.addCommand('Draft_Mirror', Mirror())
## @}