--- a/eric7/E5Gui/E5LineEdit.py Sat May 22 17:01:51 2021 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,264 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright (c) 2009 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
-#
-
-"""
-Module implementing specialized line edits.
-"""
-
-import enum
-
-from PyQt6.QtCore import pyqtSignal, Qt, QEvent
-from PyQt6.QtWidgets import (
- QLineEdit, QWidget, QHBoxLayout, QBoxLayout, QLayout, QApplication,
- QSpacerItem, QSizePolicy
-)
-
-
-class E5LineEditSideWidget(QWidget):
- """
- Class implementing the side widgets for the line edit class.
-
- @signal sizeHintChanged() emitted to indicate a change of the size hint
- """
- sizeHintChanged = pyqtSignal()
-
- def __init__(self, parent=None):
- """
- Constructor
-
- @param parent reference to the parent widget (QWidget)
- """
- super().__init__(parent)
-
- def event(self, evt):
- """
- Public method to handle events.
-
- @param evt reference to the event (QEvent)
- @return flag indicating, whether the event was recognized (boolean)
- """
- if evt.type() == QEvent.Type.LayoutRequest:
- self.sizeHintChanged.emit()
- return QWidget.event(self, evt)
-
-
-class E5LineEditSide(enum.Enum):
- """
- Class defining the line edit sides.
- """
- LEFT = 0
- RIGHT = 1
-
-
-class E5LineEdit(QLineEdit):
- """
- Class implementing a line edit widget showing some inactive text.
- """
- def __init__(self, parent=None, placeholderText=""):
- """
- Constructor
-
- @param parent reference to the parent widget
- @type QWidget
- @param placeholderText text to be shown on inactivity
- @type str
- """
- super().__init__(parent)
-
- self.setMinimumHeight(22)
-
- self.setPlaceholderText(placeholderText)
-
- self.__mainLayout = QHBoxLayout(self)
- self.__mainLayout.setContentsMargins(0, 0, 0, 0)
- self.__mainLayout.setSpacing(0)
-
- self.__leftMargin = 0
- self.__leftWidget = E5LineEditSideWidget(self)
- self.__leftWidget.resize(0, 0)
- self.__leftLayout = QHBoxLayout(self.__leftWidget)
- self.__leftLayout.setContentsMargins(0, 0, 2, 0)
- if QApplication.isRightToLeft():
- self.__leftLayout.setDirection(QBoxLayout.Direction.RightToLeft)
- else:
- self.__leftLayout.setDirection(QBoxLayout.Direction.LeftToRight)
- self.__leftLayout.setSizeConstraint(
- QLayout.SizeConstraint.SetFixedSize)
-
- self.__rightWidget = E5LineEditSideWidget(self)
- self.__rightWidget.resize(0, 0)
- self.__rightLayout = QHBoxLayout(self.__rightWidget)
- self.__rightLayout.setContentsMargins(0, 0, 2, 0)
- if self.isRightToLeft():
- self.__rightLayout.setDirection(QBoxLayout.Direction.RightToLeft)
- else:
- self.__rightLayout.setDirection(QBoxLayout.Direction.LeftToRight)
-
- horizontalSpacer = QSpacerItem(
- 0, 0, QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Minimum)
- self.__mainLayout.addWidget(
- self.__leftWidget, 0,
- Qt.AlignmentFlag.AlignVCenter | Qt.AlignmentFlag.AlignLeft)
- self.__mainLayout.addItem(horizontalSpacer)
- self.__mainLayout.addWidget(
- self.__rightWidget, 0,
- Qt.AlignmentFlag.AlignVCenter | Qt.AlignmentFlag.AlignRight)
- if self.isRightToLeft():
- self.__mainLayout.setDirection(QBoxLayout.Direction.RightToLeft)
- else:
- self.__mainLayout.setDirection(QBoxLayout.Direction.LeftToRight)
-
- self.setWidgetSpacing(3)
- self.__leftWidget.sizeHintChanged.connect(self._updateTextMargins)
- self.__rightWidget.sizeHintChanged.connect(self._updateTextMargins)
-
- def setLeftMargin(self, margin):
- """
- Public method to set the left margin.
-
- @param margin left margin in pixel (integer)
- """
- self.__leftMargin = margin
-
- def leftMargin(self):
- """
- Public method to get the size of the left margin.
-
- @return left margin in pixel (integer)
- """
- return self.__leftMargin
-
- def event(self, evt):
- """
- Public method to handle events.
-
- @param evt reference to the event (QEvent)
- @return flag indicating, whether the event was recognized (boolean)
- """
- if evt.type() == QEvent.Type.LayoutDirectionChange:
- if self.isRightToLeft():
- self.__mainLayout.setDirection(
- QBoxLayout.Direction.RightToLeft)
- self.__leftLayout.setDirection(
- QBoxLayout.Direction.RightToLeft)
- self.__rightLayout.setDirection(
- QBoxLayout.Direction.RightToLeft)
- else:
- self.__mainLayout.setDirection(
- QBoxLayout.Direction.LeftToRight)
- self.__leftLayout.setDirection(
- QBoxLayout.Direction.LeftToRight)
- self.__rightLayout.setDirection(
- QBoxLayout.Direction.LeftToRight)
- return QLineEdit.event(self, evt)
-
- def _updateTextMargins(self):
- """
- Protected slot to update the text margins.
- """
- left = (
- self.__leftWidget.sizeHint().width()
- if self.__leftMargin == 0 else
- self.__leftMargin
- )
- right = self.__rightWidget.sizeHint().width()
- top = 0
- bottom = 0
- self.setTextMargins(left, top, right, bottom)
-
- def addWidget(self, widget, position):
- """
- Public method to add a widget to a side.
-
- @param widget reference to the widget to add
- @type QWidget
- @param position position to add to
- @type E5LineEditSide
- """
- if widget is None:
- return
-
- if self.isRightToLeft():
- if position == E5LineEditSide.LEFT:
- position = E5LineEditSide.RIGHT
- else:
- position = E5LineEditSide.LEFT
- if position == E5LineEditSide.LEFT:
- self.__leftLayout.addWidget(widget)
- else:
- self.__rightLayout.insertWidget(1, widget)
-
- def removeWidget(self, widget):
- """
- Public method to remove a widget from a side.
-
- @param widget reference to the widget to remove
- @type QWidget
- """
- if widget is None:
- return
-
- self.__leftLayout.removeWidget(widget)
- self.__rightLayout.removeWidget(widget)
- widget.hide()
-
- def widgetSpacing(self):
- """
- Public method to get the side widget spacing.
-
- @return side widget spacing (integer)
- """
- return self.__leftLayout.spacing()
-
- def setWidgetSpacing(self, spacing):
- """
- Public method to set the side widget spacing.
-
- @param spacing side widget spacing (integer)
- """
- self.__leftLayout.setSpacing(spacing)
- self.__rightLayout.setSpacing(spacing)
- self._updateTextMargins()
-
- def textMargin(self, position):
- """
- Public method to get the text margin for a side.
-
- @param position side to get margin for
- @type E5LineEditSide
- @return text margin
- @rtype int
- """
- spacing = self.__rightLayout.spacing()
- w = 0
- w = (
- self.__leftWidget.sizeHint().width()
- if position == E5LineEditSide.LEFT else
- self.__rightWidget.sizeHint().width()
- )
- if w == 0:
- return 0
- return w + spacing * 2
-
-class E5ClearableLineEdit(E5LineEdit):
- """
- Class implementing a line edit widget showing some inactive text and a
- clear button, if it has some contents.
- """
- def __init__(self, parent=None, placeholderText="",
- side=E5LineEditSide.RIGHT):
- """
- Constructor
-
- @param parent reference to the parent widget
- @type QWidget
- @param placeholderText text to be shown on inactivity
- @type str
- @param side side the clear button should be shown at
- @type E5LineEditSide
- """
- super().__init__(parent, placeholderText)
-
- self.setClearButtonEnabled(True)
