# SPDX-License-Identifier: LGPL-2.1-or-later

# ***************************************************************************
# *   (c) 2019 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de>           *
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# *   This file is part of the FreeCAD CAx development system.              *
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"""Provides GUI tools to create polar Array objects."""
## @package gui_polararray
# \ingroup draftguitools
# \brief Provides GUI tools to create polar Array objects.

## \addtogroup draftguitools
# @{
from pivy import coin
from PySide.QtCore import QT_TRANSLATE_NOOP

import FreeCAD as App
import FreeCADGui as Gui
from draftguitools import gui_base
from draftutils import gui_utils
from drafttaskpanels import task_polararray


class PolarArray(gui_base.GuiCommandBase):
    """Gui command for the PolarArray tool."""

    def __init__(self):
        super().__init__(name="PolarArray")
        self.location = None
        self.mouse_event = None
        self.callback_move = None
        self.callback_click = None
        self.ui = None
        self.point = App.Vector()

    def GetResources(self):
        """Set icon, menu and tooltip."""
        return {
            "Pixmap": "Draft_PolarArray",
            "MenuText": QT_TRANSLATE_NOOP("Draft_PolarArray", "Polar Array"),
            "ToolTip": QT_TRANSLATE_NOOP(
                "Draft_PolarArray", "Creates copies of the selected object in a polar pattern"
            ),
        }

    def Activated(self):
        """Execute when the command is called.

        We add callbacks that connect the 3D view with
        the widgets of the task panel.
        """
        super().Activated()

        self.location = coin.SoLocation2Event.getClassTypeId()
        self.mouse_event = coin.SoMouseButtonEvent.getClassTypeId()
        self.callback_move = self.view.addEventCallbackPivy(self.location, self.move)
        self.callback_click = self.view.addEventCallbackPivy(self.mouse_event, self.click)

        self.ui = task_polararray.TaskPanelPolarArray()
        # The calling class (this one) is saved in the object
        # of the interface, to be able to call a function from within it.
        self.ui.source_command = self
        task = Gui.Control.showDialog(self.ui)
        task.setDocumentName(Gui.ActiveDocument.Document.Name)
        task.setAutoCloseOnDeletedDocument(True)

    def move(self, event_cb):
        """Execute as a callback when the pointer moves in the 3D view.

        It should automatically update the coordinates in the widgets
        of the task panel.
        """
        event = event_cb.getEvent()
        mousepos = event.getPosition().getValue()
        ctrl = event.wasCtrlDown()
        self.point = Gui.Snapper.snap(mousepos, active=ctrl)
        if self.ui:
            self.ui.display_point(self.point)

    def click(self, event_cb=None):
        """Execute as a callback when the pointer clicks on the 3D view.

        It should act as if the Enter key was pressed, or the OK button
        was pressed in the task panel.
        """
        if event_cb:
            event = event_cb.getEvent()
            if (
                event.getState() != coin.SoMouseButtonEvent.DOWN
                or event.getButton() != coin.SoMouseButtonEvent.BUTTON1
            ):
                return
        if self.ui and self.point:
            # The accept function of the interface
            # should call the completed function
            # of the calling class (this one).
            self.ui.accept()

    def completed(self):
        """Execute when the command is terminated.

        We should remove the callbacks that were added to the 3D view
        and then close the task panel.
        """
        try:
            self.view.removeEventCallbackPivy(self.location, self.callback_move)
            self.view.removeEventCallbackPivy(self.mouse_event, self.callback_click)
            gui_utils.end_all_events()
        except RuntimeError:
            # the view has been deleted already
            pass
        self.callback_move = None
        self.callback_click = None
        if Gui.Control.activeDialog():
            Gui.Control.closeDialog()
        self.finish()


Gui.addCommand("Draft_PolarArray", PolarArray())

## @}