阻抗弹窗
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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Quick Controls module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.2
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import QtQuick.Controls 1.2
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import QtQuick.Controls.Private 1.0
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import QtQuick.Window 2.2
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/*!
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\qmltype AbstractCheckable
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\inqmlmodule QtQuick.Controls
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\brief An abstract representation of a checkable control with a label
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\qmlabstract
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\internal
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A checkable control is one that has two states: checked (on) and
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unchecked (off). AbstractCheckable encapsulates the basic behavior and
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states that are required by checkable controls.
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Examples of checkable controls are RadioButton and
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CheckBox. CheckBox extends AbstractCheckable's behavior by adding a third
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state: partially checked.
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*/
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Control {
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id: abstractCheckable
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/*!
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Emitted whenever the control is clicked.
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*/
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signal clicked
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/*!
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\qmlproperty bool AbstractCheckable::pressed
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This property is \c true if the control is being pressed.
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Set this property to manually invoke a mouse click.
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*/
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property alias pressed: mouseArea.effectivePressed
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/*! \qmlproperty bool AbstractCheckcable::hovered
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This property indicates whether the control is being hovered.
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*/
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readonly property alias hovered: mouseArea.containsMouse
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/*!
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This property is \c true if the control is checked.
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*/
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property bool checked: false
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Accessible.checked: checked
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Accessible.checkable: true
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/*!
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This property is \c true if the control takes the focus when it is
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pressed; \l{QQuickItem::forceActiveFocus()}{forceActiveFocus()} will be
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called on the control.
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*/
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property bool activeFocusOnPress: false
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/*!
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This property stores the ExclusiveGroup that the control belongs to.
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*/
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property ExclusiveGroup exclusiveGroup: null
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/*!
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This property holds the text that the label should display.
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*/
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property string text
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/*!
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This property holds the button tooltip.
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\since QtQuick.Controls 1.7
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*/
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property string tooltip
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Accessible.description: tooltip
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/*! \internal */
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property var __cycleStatesHandler: cycleRadioButtonStates
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activeFocusOnTab: true
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MouseArea {
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id: mouseArea
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focus: true
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anchors.fill: parent
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hoverEnabled: Settings.hoverEnabled
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enabled: !keyPressed
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property bool keyPressed: false
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property bool effectivePressed: pressed && containsMouse || keyPressed
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onClicked: abstractCheckable.clicked();
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onPressed: if (activeFocusOnPress) forceActiveFocus();
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onExited: Tooltip.hideText()
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onCanceled: Tooltip.hideText()
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onReleased: {
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if (containsMouse && (!exclusiveGroup || !checked))
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__cycleStatesHandler();
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}
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Timer {
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interval: 1000
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running: mouseArea.containsMouse && !pressed && tooltip.length && mouseArea.Window.visibility !== Window.Hidden
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onTriggered: Tooltip.showText(mouseArea, Qt.point(mouseArea.mouseX, mouseArea.mouseY), tooltip)
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}
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}
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/*! \internal */
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onExclusiveGroupChanged: {
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if (exclusiveGroup)
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exclusiveGroup.bindCheckable(abstractCheckable)
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}
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Keys.onPressed: {
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if (event.key === Qt.Key_Space && !event.isAutoRepeat && !mouseArea.pressed)
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mouseArea.keyPressed = true;
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}
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Keys.onReleased: {
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if (event.key === Qt.Key_Space && !event.isAutoRepeat && mouseArea.keyPressed) {
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mouseArea.keyPressed = false;
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if (!exclusiveGroup || !checked)
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__cycleStatesHandler();
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clicked();
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}
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}
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Action {
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// handle mnemonic
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text: abstractCheckable.text
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onTriggered: {
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if (!abstractCheckable.exclusiveGroup || !abstractCheckable.checked)
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abstractCheckable.__cycleStatesHandler();
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abstractCheckable.clicked();
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}
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}
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}
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