######################################################################################################################
# Copyright (C) 2017-2020 Spine project consortium
# This file is part of Spine Toolbox.
# Spine Toolbox is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General
# Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option)
# any later version. This program 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 Lesser General
# Public License for more details. You should have received a copy of the GNU Lesser General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
######################################################################################################################
"""
Module for view icon class.
:authors: M. Marin (KTH), P. Savolainen (VTT)
:date: 4.4.2018
"""
import random
from PySide2.QtGui import QColor
from PySide2.QtCore import QTimeLine, QPointF, Slot
from spinetoolbox.graphics_items import ProjectItemIcon
[docs]class CombinerIcon(ProjectItemIcon):
def __init__(self, toolbox, x, y, project_item, icon):
"""View icon for the Design View.
Args:
toolbox (ToolBoxUI): QMainWindow instance
x (float): Icon x coordinate
y (float): Icon y coordinate
project_item (ProjectItem): Item
icon (str): icon resource path
"""
super().__init__(
toolbox, x, y, project_item, icon, icon_color=QColor("#990000"), background_color=QColor("#ffcccc")
)
self.time_line = QTimeLine()
self.time_line.setLoopCount(0) # loop forever
self.time_line.setFrameRange(0, 10)
self.time_line.setDirection(QTimeLine.Backward)
self.time_line.valueChanged.connect(self._handle_time_line_value_changed)
self.time_line.stateChanged.connect(self._handle_time_line_state_changed)
self._svg_item_pos = self.svg_item.pos()
@Slot(float)
[docs] def _handle_time_line_value_changed(self, value):
rect = self.svg_item.sceneBoundingRect()
width = rect.width()
height = rect.height()
x = random.uniform(-self._SHAKE_FACTOR, self._SHAKE_FACTOR) * width
y = random.uniform(-self._SHAKE_FACTOR, self._SHAKE_FACTOR) * height
self.svg_item.setPos(self._svg_item_pos + QPointF(x, y))
@Slot("QTimeLine::State")
[docs] def _handle_time_line_state_changed(self, new_state):
if new_state == QTimeLine.NotRunning:
self.svg_item.setPos(self._svg_item_pos)
[docs] def start_animation(self):
"""Start the animation that plays when the Combiner associated to this GraphicsItem is running.
"""
if self.time_line.state() == QTimeLine.Running:
return
self.time_line.start()
[docs] def stop_animation(self):
"""Stop animation"""
if self.time_line.state() != QTimeLine.Running:
return
self.time_line.stop()