class ClearableLineEdit(QLineEdit):
HEIGHT = 32
def __init__(self, filter_updater, parent=None):
"""
:type filter_updater: (str) -> None
:type parent: QWidget
"""
super().__init__(parent)
self._filter_updater = lambda: filter_updater(self.text())
self.setFixedHeight(self.HEIGHT)
self.setMaxLength(48)
self.setMaximumWidth(200)
self._tool_button = QToolButton(self)
self._tool_button.setIcon(QIcon(resource_filepath("clear.png")))
self._tool_button.setStyleSheet("QToolButton {"
" border: none;"
" padding: 0px;"
"}")
frame_width = self._getFrameWidth()
icon_side = self.HEIGHT - 2 * frame_width
self._tool_button.setFixedSize(icon_side, icon_side)
self._tool_button.clicked.connect(self.onClearButton)
self._tool_button.hide()
self.textChanged.connect(self.updateFilter)
stylesheet = \
"QLineEdit {{" \
" padding-right: {}px;" \
" background-color: #FFFFFF;" \
"}}".format(self._tool_button.sizeHint().width() + frame_width + 1)
self.setStyleSheet(stylesheet)
def resizeEvent(self, event):
super().resizeEvent(event)
self._updateSize()
def _updateSize(self):
size = self._tool_button.size()
""":type: QSize"""
frame_width = self._getFrameWidth()
rect = self.rect()
""":type: QRect"""
x = rect.right() - frame_width - size.width()
y = (rect.bottom() + 1 - size.height()) / 2
self._tool_button.move(x, y)
def _getFrameWidth(self):
return self.style().pixelMetric(QStyle.PM_DefaultFrameWidth)
def onClearButton(self):
self.clear()
def updateFilter(self):
self._tool_button.setVisible(len(self.text()) > 0)
self._filter_updater()
class LabelFilterEdit(QLineEdit):
clear_button = None
def __init__(self, parent=None):
QLineEdit.__init__(self, parent)
self.clear_button = QToolButton(self)
self.clear_button.setText("clear")
self.clear_button.hide()
self.clear_button.clicked.connect(self.clear)
# self.clear_button.setIcon(QIcon(":/denied.png"))
self.textChanged.connect(self.update_clear_button)
def resizeEvent(self, *args, **kwargs):
super(LabelFilterEdit, self).resizeEvent(*args, **kwargs)
sz = self.clear_button.sizeHint()
frameWidth = 0 #self.style().pixelMetric(QStyle.PM_DefaultFrameWidth)
self.clear_button.move(self.rect().right() - sz.width() - frameWidth,
(self.rect().bottom() + 1 - sz.height()) / 2)
def update_clear_button(self, text):
self.clear_button.setVisible(len(text)>0)
