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# Copyright (C) 2015-2017 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/>.
__author__ = 'Damon Lynch'
__copyright__ = "Copyright 2015-2017, Damon Lynch"
from enum import IntEnum
from PyQt5.QtGui import (QColor, QPalette)
from PyQt5.QtWidgets import (QPushButton, QStylePainter, QStyle, QStyleOptionButton, QHBoxLayout)
class VerticalRotation(IntEnum):
left_side = 270
right_side = 90
class FlatButton:
_padding = 'padding-left: {padding_side}px; padding-right: {padding_side}px; padding-top: ' \
'{padding_top}px; padding-bottom: {padding_bottom}px;'.format(
padding_top=6, padding_side=7, padding_bottom=6
)
def setFlatStyle(self, button: QPushButton,
darker_if_checked: bool=True,
padding: str='',
color: QColor=None,
text_color: QColor=None) -> None:
if color is None:
color = QPalette().color(QPalette.Background)
default_color = color.name(QColor.HexRgb)
if darker_if_checked:
checked_color = color.darker(125).name(QColor.HexRgb)
else:
checked_color = default_color
hover_color = color.darker(110).name(QColor.HexRgb)
if not padding:
padding = self._padding
if text_color is not None:
text = 'color: {};'.format(text_color.name(QColor.HexRgb))
else:
text = ''
# outline:none is used to remove the rectangle that appears on a
# button when the button has focus
# http://stackoverflow.com/questions/17280056/qt-css-decoration-on-focus
stylesheet = """
QPushButton { background-color: %s;
border: 0px;
outline: none;
%s
%s}
QPushButton:checked { background-color: %s; border: none; }
QPushButton:hover{ background-color: %s; border-style: inset; }
""" % (default_color, padding, text, checked_color, hover_color) #
button.setStyleSheet(stylesheet)
def setHighlightedFlatStyle(self, button: QPushButton) -> None:
palette = QPalette()
color = palette.color(palette.Highlight)
text_color = palette.color(palette.HighlightedText)
self.setFlatStyle(button, color=color, text_color=text_color, darker_if_checked=False)
class RotatedButton(QPushButton, FlatButton):
leftSide = 270.0
rightSide = 90.0
def __init__(self, text: str,
rotation: float,
flat: bool=True,
use_highlight_color=False,
checkable: bool=True,
parent=None) -> None:
"""
A push button to show in the left or right side of a window
:param text: text to display
:param rotation: whether on the left or right side of the window
:param flat: if True, set style to flat style
:param use_highlight_color: if True, the button's color should be the palette's color
for highlighting selected items. Takes effect only when using a flat is also True.
:param checkable: if the button is checkable or not
:param parent: optional parent widget
"""
super().__init__(text, parent)
self.buttonRotation = rotation
if flat:
# Use only the stylesheet to give the appearance of being flat.
# Don't mix and match stylesheet and non-stylesheet options for widgets.
# http://stackoverflow.com/questions/34654545/qt-flat-qpushbutton-background-color-doesnt-work
if use_highlight_color:
self.setHighlightedFlatStyle(self)
else:
self.setFlatStyle(self)
self.setCheckable(checkable)
def paintEvent(self, event):
painter = QStylePainter(self)
painter.rotate(self.buttonRotation)
if self.buttonRotation == VerticalRotation.left_side:
painter.translate(-1 * self.height(), 0)
elif self.buttonRotation == VerticalRotation.right_side:
painter.translate(0, -1 * self.width())
painter.drawControl(QStyle.CE_PushButton, self.getSyleOptions())
def setRotation(self, rotation: float):
self.buttonRotation = rotation
def sizeHint(self):
size = super().sizeHint()
size.transpose()
return size
def getSyleOptions(self) -> QStyleOptionButton:
options = QStyleOptionButton()
options.initFrom(self)
size = options.rect.size()
size.transpose()
options.rect.setSize(size)
try:
options.features = QStyleOptionButton.None_
except AttributeError:
# Allow for bug in PyQt 5.4
options.features = getattr(QStyleOptionButton, 'None')
if self.isFlat():
options.features |= QStyleOptionButton.Flat
if self.menu():
options.features |= QStyleOptionButton.HasMenu
if self.autoDefault() or self.isDefault():
options.features |= QStyleOptionButton.AutoDefaultButton
if self.isDefault():
options.features |= QStyleOptionButton.DefaultButton
if self.isDown() or (self.menu() and self.menu().isVisible()):
options.state |= QStyle.State_Sunken
if self.isChecked():
options.state |= QStyle.State_On
if not self.isFlat() and not self.isDown():
options.state |= QStyle.State_Raised
options.text = self.text()
options.icon = self.icon()
options.iconSize = self.iconSize()
return options
def setHighlighted(self, highlighted: bool) -> None:
if highlighted:
self.setHighlightedFlatStyle(self)
else:
self.setFlatStyle(self)
self.update()
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