def _add_tag(self, tag_name=None, tag_color=None):
if not tag_name or not tag_color:
dialog = CreateTagDialog(self)
dialog.exec_()
result = dialog.result()
if result:
tag_color = dialog._color
tag_name = dialog._name
else:
return
item = QtWidgets.QListWidgetItem()
item.setText(tag_name)
item.setData(QtCore.Qt.BackgroundRole, QtGui.QBrush(QtGui.QColor(tag_color)))
self.tags_lw.addItem(item)
def _draw_background(self, painter, option, index):
rect = deepcopy(option.rect)
path = QtGui.QPainterPath()
path.addRoundedRect(rect, 3, 3)
if option.state & QtWidgets.QStyle.State_Selected:
background_color = QtGui.QBrush(
option.palette.color(QtGui.QPalette.Highlight))
else:
background_color = index.data(QtCore.Qt.BackgroundRole)
r, g, b, a = background_color.color().getRgb()
color_luminance = TagDelegate.color_luminance(r, g, b)
brightness = 50
if color_luminance > 150:
brightness = -50
pen = QtGui.QPen(
QtGui.QColor(*TagDelegate.color_variant(
background_color.color().name(), brightness)))
painter.setPen(pen)
painter.fillPath(path, background_color)
painter.drawPath(path)
painter.drawPath(path)
def _draw_text(self, painter, option, index):
rect = deepcopy(option.rect)
name = index.data(QtCore.Qt.DisplayRole)
# pen = QtGui.QPen(QtCore.Qt.black)
# painter.setPen(pen)
painter.drawText(rect, QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter,
name)
def sizeHint(self, option, index):
name = index.data(QtCore.Qt.DisplayRole)
return QtCore.QSize(option.fontMetrics.width(name) + 8, 21)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
listwidget = QtWidgets.QListWidget()
listwidget.setFlow(QtWidgets.QListView.LeftToRight)
listwidget.setSpacing(3)
listwidget.setItemDelegate(TagDelegate())
for x in xrange(5):
item = QtWidgets.QListWidgetItem()
item.setText("Item number {}".format(x))
item.setData(QtCore.Qt.BackgroundRole,
QtGui.QBrush(QtGui.QColor("#444444")))
listwidget.addItem(item)
listwidget.show()
app.exec_()