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authorJörg Frings-Fürst <debian@jff-webhosting.net>2017-07-06 22:55:08 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2017-07-06 22:55:08 +0200
commit083849161f075878e4175cd03cb7afa83d64e7f5 (patch)
tree101feb02f6306f8f8b335faa39d74f1eaafc8d54 /raphodo/toggleswitch.py
parentb5287ed17bda10877d84ba86fcf148ee74b93b9b (diff)
New upstream version 0.9.0upstream/0.9.0
Diffstat (limited to 'raphodo/toggleswitch.py')
-rw-r--r--raphodo/toggleswitch.py184
1 files changed, 184 insertions, 0 deletions
diff --git a/raphodo/toggleswitch.py b/raphodo/toggleswitch.py
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+++ b/raphodo/toggleswitch.py
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+# Copyright (C) 2016 Damon Lynch <damonlynch@gmail.com>
+
+# This file is part of Rapid Photo Downloader.
+#
+# Rapid Photo Downloader is free software: you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Rapid Photo Downloader 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Rapid Photo Downloader. If not,
+# see <http://www.gnu.org/licenses/>.
+
+"""
+Toggle Switch reminiscent of Android On/off switches:
+https://www.google.com/design/spec/components/selection-controls.html
+
+Visual style is rounded. However by adjusting the style sheet it can be
+made like a rounded square, close to how Gnome handles it, albeit
+without the "ON"/"OFF text.
+
+Inspiration:
+http://stackoverflow.com/questions/14780517/toggle-switch-in-qt
+http://thesmithfam.org/blog/2010/03/10/fancy-qslider-stylesheet/
+"""
+
+__author__ = 'Damon Lynch'
+__copyright__ = "Copyright 2016, Damon Lynch"
+
+from typing import Optional
+
+from PyQt5.QtCore import Qt, pyqtSlot
+from PyQt5.QtGui import QPalette, QColor, QFont,QFontMetrics
+from PyQt5.QtWidgets import QSlider, QApplication
+
+class QToggleSwitch(QSlider):
+ """
+ Toggle Switch reminiscent of Android On/off switches.
+
+ Connect to signal valueChanged to react to user setting the switch.
+ """
+ def __init__(self, background: Optional[QColor]=None, parent=None) -> None:
+ super().__init__(Qt.Horizontal, parent)
+
+ self.base_height = QFontMetrics(QFont()).height() // 2 * 2
+ self.radius = self.base_height // 2
+
+ width = self.base_height * 2
+ self.widgetWidth = width
+ self.handleWidth = width // 2
+ self.sliderRange = width
+ self.sliderMidPoint = width // 2
+ self.setRange(0, self.sliderRange)
+
+ self.setMaximumWidth(self.widgetWidth)
+ self.setFixedHeight(self.base_height + 6)
+
+ self.setStyleSheet(self.stylesheet(background))
+
+ self.actionTriggered.connect(self.onActionTriggered)
+ self.sliderReleased.connect(self.onSliderRelease)
+
+ def stylesheet(self, background: Optional[QColor]) -> str:
+ shading_intensity = 104
+ windowColor = (QPalette().color(QPalette().Window)) # type: QColor
+
+ if background is None:
+ backgroundName = windowColor.name()
+ else:
+ backgroundName = QColor(background).name()
+
+ handleLightName = (QPalette().color(QPalette().Light)).name() # type: QColor
+ handleDarkName = (QPalette().color(QPalette().Dark)).name() # type: QColor
+ handleHoverLightName = (QPalette().color(QPalette().Light)).lighter(shading_intensity).name()
+ handleHoverDarkName = (QPalette().color(QPalette().Dark)).darker(shading_intensity).name()
+
+ insetDarkName = windowColor.darker(108).name()
+ insetLightName = windowColor.darker(102).name()
+
+ highlightColor = (QPalette().color(QPalette().Highlight)) # type: QColor
+ highlightLightName = highlightColor.lighter(110).name()
+ highlightDarkName = highlightColor.darker(130).name()
+
+ return """
+ QSlider::groove:horizontal {
+ background-color: %(backgroundName)s;
+ height: %(height)s px;
+ }
+
+ QSlider::sub-page:horizontal {
+ background: qlineargradient(x1: 0, y1: 0.2, x2: 1, y2: 1,
+ stop: 0 %(highlightDarkName)s, stop: 1 %(highlightLightName)s);
+ border: 1px solid #777;
+ border-top-left-radius: %(radius)spx;
+ border-bottom-left-radius: %(radius)spx;
+ }
+
+ QSlider::add-page:horizontal {
+ background: qlineargradient(x1: 0, y1: 0.2, x2: 1, y2: 1,
+ stop: 0 %(insetDarkName)s, stop: 1 %(insetLightName)s);
+ border: 1px solid #777;
+ border-top-right-radius: %(radius)spx;
+ border-bottom-right-radius: %(radius)spx;
+ }
+
+ QSlider::handle:horizontal {
+ background: qlineargradient(x1:0, y1:0, x2:1, y2:1,
+ stop:0 %(handleLightName)s, stop:1 %(handleDarkName)s);
+ border: 1px solid #777;
+ width: %(buttonWidth)s px;
+ border-radius: %(radius)spx;
+ }
+
+ QSlider::handle:horizontal:hover {
+ background: qlineargradient(x1:0, y1:0, x2:1, y2:1,
+ stop:0 %(handleHoverLightName)s, stop:1 %(handleHoverDarkName)s);
+ border: 1px solid #444;
+ border-radius: %(radius)spx;
+ }
+
+ QSlider::sub-page:horizontal:disabled {
+ background: #bbb;
+ border-color: #999;
+ }
+
+ QSlider::add-page:horizontal:disabled {
+ background: #eee;
+ border-color: #999;
+ }
+
+ QSlider::handle:horizontal:disabled {
+ background: #eee;
+ border: 1px solid #aaa;
+ border-radius: %(radius)spx;
+ }
+ """ % dict(buttonWidth=self.handleWidth,
+ handleLightName=handleLightName,
+ handleDarkName=handleDarkName,
+ handleHoverLightName=handleHoverLightName,
+ handleHoverDarkName=handleHoverDarkName,
+ backgroundName=backgroundName,
+ highlightDarkName=highlightDarkName,
+ highlightLightName=highlightLightName,
+ height=self.base_height,
+ insetDarkName=insetDarkName,
+ insetLightName=insetLightName,
+ radius=self.radius)
+
+ @pyqtSlot(int)
+ def onActionTriggered(self, action: int) -> None:
+ if action != 7:
+ if action % 2:
+ self.setValue(self.sliderRange)
+ else:
+ self.setValue(0)
+
+ @pyqtSlot()
+ def onSliderRelease(self) -> None:
+ if self.sliderPosition() >= self.sliderMidPoint:
+ self.setValue(self.sliderRange)
+ else:
+ self.setValue(0)
+
+ def on(self) -> bool:
+ return self.value() == self.sliderRange
+
+ def setOn(self, on: bool=True) -> None:
+ if on:
+ self.setValue(self.sliderRange)
+ else:
+ self.setValue(0)
+
+
+if __name__ == "__main__":
+ import sys
+ app = QApplication(sys.argv)
+ b = QToggleSwitch()
+ b.show()
+ sys.exit(app.exec_()) \ No newline at end of file