151 lines
6.7 KiB
Python
151 lines
6.7 KiB
Python
# ***************************************************************************
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# * (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
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# * (c) 2009, 2010 Ken Cline <cline@frii.com> *
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# * (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with FreeCAD; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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"""Provides GUI tools to change the slope of a line.
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It currently only works for a line in the XY plane, it changes the height
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of one of its points in the Z direction to create a sloped line.
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"""
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## @package gui_lineslope
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# \ingroup draftguitools
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# \brief Provides GUI tools to change the slope of a line.
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## \addtogroup draftguitools
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# @{
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import PySide.QtWidgets as QtWidgets
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from PySide.QtCore import QT_TRANSLATE_NOOP
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import FreeCAD as App
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import FreeCADGui as Gui
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from draftguitools import gui_base
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from draftutils import params
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from draftutils import utils
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from draftutils.translate import translate
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class LineSlope(gui_base.GuiCommandNeedsSelection):
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"""Gui Command for the Line slope tool.
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For a line in the XY plane, it changes the height of one of its points
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to create a sloped line.
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To Do
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-----
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Make it work also with lines lying on the YZ and XZ planes,
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or in an arbitrary plane, for which the normal is known.
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"""
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def __init__(self):
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super().__init__(name=translate("draft", "Change slope"))
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def GetResources(self):
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"""Set icon, menu and tooltip."""
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return {"Pixmap": "Draft_Slope",
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"MenuText": QT_TRANSLATE_NOOP("Draft_Slope", "Set slope"),
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"ToolTip": QT_TRANSLATE_NOOP("Draft_Slope", "Sets the slope of the selected line by changing the value of the Z value of one of its points.\nIf a polyline is selected, it will apply the slope transformation to each of its segments.\n\nThe slope will always change the Z value, therefore this command only works well for\nstraight Draft lines that are drawn in the XY plane. Selected objects that aren't single lines will be ignored.")}
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def Activated(self):
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"""Execute when the command is called."""
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super().Activated()
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# for obj in Gui.Selection.getSelection():
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# if utils.get_type(obj) != "Wire":
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# _msg(translate("draft",
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# "This tool only works with "
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# "Draft Lines and Wires"))
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# return
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# TODO: create a .ui file with QtCreator and import it here
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# instead of creating the interface programmatically,
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# see the `gui_othoarray` module for an example.
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w = QtWidgets.QWidget()
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w.setWindowTitle(translate("Draft", "Slope"))
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layout = QtWidgets.QHBoxLayout(w)
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label = QtWidgets.QLabel(w)
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label.setText(translate("Draft", "Slope")+":")
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layout.addWidget(label)
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self.spinbox = QtWidgets.QDoubleSpinBox(w)
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self.spinbox.setDecimals(params.get_param("Decimals", path="Units"))
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self.spinbox.setMinimum(-9999.99)
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self.spinbox.setMaximum(9999.99)
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self.spinbox.setSingleStep(0.01)
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_tip = ("New slope of the selected lines.\n"
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"This is the tangent of the horizontal angle:\n"
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"0 = horizontal\n"
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"1 = 45 deg up\n"
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"-1 = 45deg down\n")
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label.setToolTip(translate("Draft", _tip))
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self.spinbox.setToolTip(translate("Draft", _tip))
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layout.addWidget(self.spinbox)
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# In order to display our interface inside the task panel
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# we must contain our interface inside a parent widget.
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# Then our interface must be installed in this parent widget
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# inside the attribute called "form".
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taskwidget = QtWidgets.QWidget()
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taskwidget.form = w
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# The "accept" attribute of the parent widget
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# should also contain a reference to a function that will be called
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# when we press the "OK" button.
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# Then we must show the container widget.
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taskwidget.accept = self.accept
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Gui.Control.showDialog(taskwidget)
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def accept(self):
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"""Execute when clicking the OK button or pressing Enter key.
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It changes the slope of the line that lies on the XY plane.
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TODO: make it work also with lines lying on the YZ and XZ planes.
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"""
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if hasattr(self, "spinbox"):
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pc = self.spinbox.value()
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self.doc.openTransaction("Change slope")
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for obj in Gui.Selection.getSelection():
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if utils.get_type(obj) == "Wire":
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if len(obj.Points) > 1:
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lp = None
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np = []
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for p in obj.Points:
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if not lp:
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lp = p
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else:
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v = p.sub(lp)
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z = pc * App.Vector(v.x, v.y, 0).Length
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lp = App.Vector(p.x, p.y, lp.z + z)
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np.append(lp)
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obj.Points = np
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self.doc.commitTransaction()
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Gui.Control.closeDialog()
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self.doc.recompute()
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Draft_Slope = LineSlope
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Gui.addCommand('Draft_Slope', LineSlope())
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## @}
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