291 lines
9.6 KiB
QML
291 lines
9.6 KiB
QML
/****************************************************************************
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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 Extras 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 QtGraphicalEffects 1.0
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import QtQuick.Controls.Styles 1.4
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import QtQuick.Extras 1.4
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import QtQuick.Extras.Private 1.0
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import QtQuick.Extras.Private.CppUtils 1.0
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/*!
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\qmltype ToggleButtonStyle
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\inqmlmodule QtQuick.Controls.Styles
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\since 5.5
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\ingroup controlsstyling
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\brief Provides custom styling for ToggleButton.
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You can create a custom toggle button by replacing the same delegates that
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\l {ButtonStyle} provides.
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*/
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CircularButtonStyle {
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id: circularButtonStyle
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/*!
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The \l ToggleButton that this style is attached to.
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*/
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readonly property ToggleButton control: __control
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/*!
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The gradient that is displayed on the inactive state indicator. The
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inactive state indicator will be the checked gradient when the button
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is unchecked, and the unchecked gradient when the button is checked.
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\sa checkedGradient, uncheckedGradient
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*/
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property Gradient inactiveGradient: Gradient {
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GradientStop {
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position: 0
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color: commonStyleHelper.inactiveColor
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}
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GradientStop {
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position: 1
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color: commonStyleHelper.inactiveColorShine
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}
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}
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/*!
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The gradient that is displayed on the checked state indicator.
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\sa uncheckedGradient, inactiveGradient
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*/
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property Gradient checkedGradient: Gradient {
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GradientStop {
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position: 0
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color: commonStyleHelper.onColor
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}
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GradientStop {
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position: 1
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color: commonStyleHelper.onColorShine
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}
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}
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/*!
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The gradient that is displayed on the unchecked state indicator.
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\sa checkedGradient, inactiveGradient
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*/
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property Gradient uncheckedGradient: Gradient {
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GradientStop {
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position: 0
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color: commonStyleHelper.offColor
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}
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GradientStop {
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position: 1
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color: commonStyleHelper.offColorShine
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}
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}
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/*!
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The color that is used for the drop shadow below the checked state
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indicator.
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\sa uncheckedDropShadowColor
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*/
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property color checkedDropShadowColor: commonStyleHelper.onColor
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/*!
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The color that is used for the drop shadow below the checked state
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indicator.
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\sa checkedDropShadowColor
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*/
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property color uncheckedDropShadowColor: commonStyleHelper.offColor
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CommonStyleHelper {
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id: commonStyleHelper
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}
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background: Item {
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implicitWidth: __buttonHelper.implicitWidth
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implicitHeight: __buttonHelper.implicitHeight
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Connections {
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target: control
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onPressedChanged: {
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backgroundCanvas.requestPaint();
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}
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onCheckedChanged: {
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uncheckedCanvas.requestPaint();
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checkedCanvas.requestPaint();
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}
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}
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Connections {
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target: circularButtonStyle
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onCheckedGradientChanged: checkedCanvas.requestPaint()
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onCheckedDropShadowColorChanged: checkedCanvas.requestPaint()
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onUncheckedGradientChanged: uncheckedCanvas.requestPaint()
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onUncheckedDropShadowColorChanged: uncheckedCanvas.requestPaint()
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onInactiveGradientChanged: {
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checkedCanvas.requestPaint();
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uncheckedCanvas.requestPaint();
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}
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}
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Connections {
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target: circularButtonStyle.checkedGradient
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onUpdated: checkedCanvas.requestPaint()
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}
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Connections {
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target: circularButtonStyle.uncheckedGradient
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onUpdated: uncheckedCanvas.requestPaint()
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}
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Connections {
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target: circularButtonStyle.inactiveGradient
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onUpdated: {
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uncheckedCanvas.requestPaint();
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checkedCanvas.requestPaint();
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}
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}
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Canvas {
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id: backgroundCanvas
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anchors.fill: parent
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onPaint: {
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var ctx = getContext("2d");
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__buttonHelper.paintBackground(ctx);
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}
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}
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Canvas {
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id: uncheckedCanvas
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anchors.fill: parent
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anchors.margins: -(__buttonHelper.radius * 3)
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visible: control.checked
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readonly property real xCenter: width / 2
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readonly property real yCenter: height / 2
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onPaint: {
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var ctx = getContext("2d");
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ctx.reset();
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/* Draw unchecked indicator */
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ctx.beginPath();
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ctx.lineWidth = __buttonHelper.outerArcLineWidth - __buttonHelper.innerArcLineWidth;
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ctx.arc(xCenter, yCenter, __buttonHelper.outerArcRadius + __buttonHelper.innerArcLineWidth / 2,
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MathUtils.degToRad(180), MathUtils.degToRad(270), false);
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var gradient = ctx.createLinearGradient(xCenter, yCenter + __buttonHelper.radius,
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xCenter, yCenter - __buttonHelper.radius);
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var relevantGradient = control.checked ? inactiveGradient : uncheckedGradient;
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for (var i = 0; i < relevantGradient.stops.length; ++i) {
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gradient.addColorStop(relevantGradient.stops[i].position, relevantGradient.stops[i].color);
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}
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ctx.strokeStyle = gradient;
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ctx.stroke();
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}
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}
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Canvas {
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id: checkedCanvas
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anchors.fill: parent
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anchors.margins: -(__buttonHelper.radius * 3)
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visible: !control.checked
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readonly property real xCenter: width / 2
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readonly property real yCenter: height / 2
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onPaint: {
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var ctx = getContext("2d");
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ctx.reset();
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/* Draw checked indicator */
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ctx.beginPath();
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ctx.lineWidth = __buttonHelper.outerArcLineWidth - __buttonHelper.innerArcLineWidth;
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ctx.arc(xCenter, yCenter, __buttonHelper.outerArcRadius + __buttonHelper.innerArcLineWidth / 2,
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MathUtils.degToRad(270), MathUtils.degToRad(0), false);
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var gradient = ctx.createLinearGradient(xCenter, yCenter + __buttonHelper.radius,
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xCenter, yCenter - __buttonHelper.radius);
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var relevantGradient = control.checked ? checkedGradient : inactiveGradient;
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for (var i = 0; i < relevantGradient.stops.length; ++i) {
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gradient.addColorStop(relevantGradient.stops[i].position, relevantGradient.stops[i].color);
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}
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ctx.strokeStyle = gradient;
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ctx.stroke();
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}
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}
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DropShadow {
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id: uncheckedDropShadow
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anchors.fill: uncheckedCanvas
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cached: true
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color: uncheckedDropShadowColor
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source: uncheckedCanvas
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visible: !control.checked
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}
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DropShadow {
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id: checkedDropShadow
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anchors.fill: checkedCanvas
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cached: true
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color: checkedDropShadowColor
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source: checkedCanvas
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visible: control.checked
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}
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}
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panel: Item {
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implicitWidth: backgroundLoader.implicitWidth
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implicitHeight: backgroundLoader.implicitHeight
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Loader {
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id: backgroundLoader
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anchors.fill: parent
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sourceComponent: background
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}
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Loader {
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id: labelLoader
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sourceComponent: label
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anchors.fill: parent
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anchors.leftMargin: padding.left
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anchors.topMargin: padding.top
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anchors.rightMargin: padding.right
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anchors.bottomMargin: padding.bottom
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}
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}
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}
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