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# Copyright 2004-2007 Nanorex, Inc. See LICENSE file for details.
"""
LinearMotorProp.py
$Id$
"""
from PyQt4.Qt import QDialog
from PyQt4.Qt import QWidget
from PyQt4.Qt import SIGNAL
from PyQt4.Qt import QColorDialog
from LinearMotorPropDialog import Ui_LinearMotorPropDialog
from widgets.widget_helpers import RGBf_to_QColor, QColor_to_RGBf, get_widget_with_color_palette
class LinearMotorProp(QDialog, Ui_LinearMotorPropDialog):
def __init__(self, motor, glpane):
QWidget.__init__(self)
self.setupUi(self)
self.connect(self.cancel_btn,SIGNAL("clicked()"),self.reject)
self.connect(self.ok_btn,SIGNAL("clicked()"),self.accept)
self.connect(self.choose_color_btn,SIGNAL("clicked()"),self.change_jig_color)
self.connect(self.lengthLineEdit,SIGNAL("returnPressed()"),self.change_motor_size)
self.connect(self.widthLineEdit,SIGNAL("returnPressed()"),self.change_motor_size)
self.connect(self.sradiusLineEdit,SIGNAL("returnPressed()"),self.change_motor_size)
self.jig = motor
self.glpane = glpane
self.forceLineEdit.setWhatsThis("""<b>Force </b><p>Simulations will begin with the motor's force
set to this
value. On each simulation time step, the displacement of the linear motor's atoms are computed using Hooke's
Law, where:</p>
<p><b>displacement (x) = - Force(F) / Stiffness(k)</b></p>
<p>The negative sign indicates that the force
exerted by the motor (a spring) is in
direct opposition to the direction of displacement. It is called a
"restoring force",
as it tends to restore the system to equilibrium.</p>
<p>When Stiffness = 0, the restoring force is 0 and the displacement
will
continue in one direction.</p>""")
self.nameLineEdit.setWhatsThis("""<b>Name</b><p>Name of Linear Motor that appears in the Model
Tree</p>""")
self.stiffnessLineEdit.setWhatsThis("""<b>Stiffness </b><p>Simulations will begin with the motor's stiffness
set to this
value. On each simulation time step, the displacement of the linear motor's atoms are computed using Hooke's
Law, where:</p>
<p><b>displacement (x) = - Force(F) / Stiffness(k)</b></p>
<p>The negative sign indicates that the force
exerted by the motor (a spring) is in
direct opposition to the direction of displacement. It is called a
"restoring force",
as it tends to restore the system to equilibrium.</p>
<p>When Stiffness = 0, the restoring force is 0 and the displacement
will
continue in one direction.</p>""")
self.textLabel1_5.setWhatsThis("""<b>Enable in Minimize <i>(experimental)</i></b><p>If checked,
the force specified above will be applied to the motor's atoms during a structure minimization. While intended to allow
simulations to begin with linear motors running at speed, this feature requires more work to be useful.</p>""")
self.enable_minimize_checkbox.setWhatsThis("""<b>Enable in Minimize <i>(experimental)</i></b><p>If checked,
the force specified above will be applied to the motor's atoms during a structure minimization. While intended to allow
simulations to begin with linear motors running at speed, this feature requires more work to be useful.</p>""")
def setup(self):
self.jig_attrs = self.jig.copyable_attrs_dict() # Save the jig's attributes in case of Cancel.
# Jig color
self.jig_QColor = RGBf_to_QColor(self.jig.normcolor) # Used as default color by Color Chooser
self.jig_color_pixmap = get_widget_with_color_palette(
self.jig_color_pixmap, self.jig_QColor)
self.nameLineEdit.setText(self.jig.name)
self.stiffnessLineEdit.setText(str(self.jig.stiffness))
self.forceLineEdit.setText(str(self.jig.force))
self.lengthLineEdit.setText(str(self.jig.length))
self.widthLineEdit.setText(str(self.jig.width))
self.sradiusLineEdit.setText(str(self.jig.sradius)) # spoke radius
self.enable_minimize_checkbox.setChecked(self.jig.enable_minimize)
def change_jig_color(self):
'''Slot method to change the jig's color.'''
color = QColorDialog.getColor(self.jig_QColor, self)
if color.isValid():
self.jig_QColor = color
self.jig_color_pixmap = get_widget_with_color_palette(
self.jig_color_pixmap, self.jig_QColor)
self.jig.color = self.jig.normcolor = QColor_to_RGBf(color)
self.glpane.gl_update()
def change_motor_size(self, gl_update=True):
'''Slot method to change the jig's length, width and/or spoke radius.'''
self.jig.length = float(str(self.lengthLineEdit.text())) # motor length
self.jig.width = float(str(self.widthLineEdit.text())) # motor width
self.jig.sradius = float(str(self.sradiusLineEdit.text())) # spoke radius
if gl_update:
self.glpane.gl_update()
def accept(self):
'''Slot for the 'OK' button '''
self.jig.cancelled = False
self.jig.try_rename(self.nameLineEdit.text())
self.jig.force = float(str(self.forceLineEdit.text()))
self.jig.stiffness = float(str(self.stiffnessLineEdit.text()))
self.change_motor_size(gl_update=False)
self.jig.enable_minimize = self.enable_minimize_checkbox.isChecked()
self.jig.assy.w.win_update() # Update model tree
self.jig.assy.changed()
QDialog.accept(self)
def reject(self):
'''Slot for the 'Cancel' button '''
self.jig.attr_update(self.jig_attrs) # Restore attributes of the jig.
self.glpane.gl_update()
QDialog.reject(self)
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