/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Extras module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.2 import QtGraphicalEffects 1.0 import QtQuick.Controls.Styles 1.4 import QtQuick.Extras 1.4 import QtQuick.Extras.Private 1.0 import QtQuick.Extras.Private.CppUtils 1.0 /*! \qmltype ToggleButtonStyle \inqmlmodule QtQuick.Controls.Styles \since 5.5 \ingroup controlsstyling \brief Provides custom styling for ToggleButton. You can create a custom toggle button by replacing the same delegates that \l {ButtonStyle} provides. */ CircularButtonStyle { id: circularButtonStyle /*! The \l ToggleButton that this style is attached to. */ readonly property ToggleButton control: __control /*! The gradient that is displayed on the inactive state indicator. The inactive state indicator will be the checked gradient when the button is unchecked, and the unchecked gradient when the button is checked. \sa checkedGradient, uncheckedGradient */ property Gradient inactiveGradient: Gradient { GradientStop { position: 0 color: commonStyleHelper.inactiveColor } GradientStop { position: 1 color: commonStyleHelper.inactiveColorShine } } /*! The gradient that is displayed on the checked state indicator. \sa uncheckedGradient, inactiveGradient */ property Gradient checkedGradient: Gradient { GradientStop { position: 0 color: commonStyleHelper.onColor } GradientStop { position: 1 color: commonStyleHelper.onColorShine } } /*! The gradient that is displayed on the unchecked state indicator. \sa checkedGradient, inactiveGradient */ property Gradient uncheckedGradient: Gradient { GradientStop { position: 0 color: commonStyleHelper.offColor } GradientStop { position: 1 color: commonStyleHelper.offColorShine } } /*! The color that is used for the drop shadow below the checked state indicator. \sa uncheckedDropShadowColor */ property color checkedDropShadowColor: commonStyleHelper.onColor /*! The color that is used for the drop shadow below the checked state indicator. \sa checkedDropShadowColor */ property color uncheckedDropShadowColor: commonStyleHelper.offColor CommonStyleHelper { id: commonStyleHelper } background: Item { implicitWidth: __buttonHelper.implicitWidth implicitHeight: __buttonHelper.implicitHeight Connections { target: control onPressedChanged: { backgroundCanvas.requestPaint(); } onCheckedChanged: { uncheckedCanvas.requestPaint(); checkedCanvas.requestPaint(); } } Connections { target: circularButtonStyle onCheckedGradientChanged: checkedCanvas.requestPaint() onCheckedDropShadowColorChanged: checkedCanvas.requestPaint() onUncheckedGradientChanged: uncheckedCanvas.requestPaint() onUncheckedDropShadowColorChanged: uncheckedCanvas.requestPaint() onInactiveGradientChanged: { checkedCanvas.requestPaint(); uncheckedCanvas.requestPaint(); } } Connections { target: circularButtonStyle.checkedGradient onUpdated: checkedCanvas.requestPaint() } Connections { target: circularButtonStyle.uncheckedGradient onUpdated: uncheckedCanvas.requestPaint() } Connections { target: circularButtonStyle.inactiveGradient onUpdated: { uncheckedCanvas.requestPaint(); checkedCanvas.requestPaint(); } } Canvas { id: backgroundCanvas anchors.fill: parent onPaint: { var ctx = getContext("2d"); __buttonHelper.paintBackground(ctx); } } Canvas { id: uncheckedCanvas anchors.fill: parent anchors.margins: -(__buttonHelper.radius * 3) visible: control.checked readonly property real xCenter: width / 2 readonly property real yCenter: height / 2 onPaint: { var ctx = getContext("2d"); ctx.reset(); /* Draw unchecked indicator */ ctx.beginPath(); ctx.lineWidth = __buttonHelper.outerArcLineWidth - __buttonHelper.innerArcLineWidth; ctx.arc(xCenter, yCenter, __buttonHelper.outerArcRadius + __buttonHelper.innerArcLineWidth / 2, MathUtils.degToRad(180), MathUtils.degToRad(270), false); var gradient = ctx.createLinearGradient(xCenter, yCenter + __buttonHelper.radius, xCenter, yCenter - __buttonHelper.radius); var relevantGradient = control.checked ? inactiveGradient : uncheckedGradient; for (var i = 0; i < relevantGradient.stops.length; ++i) { gradient.addColorStop(relevantGradient.stops[i].position, relevantGradient.stops[i].color); } ctx.strokeStyle = gradient; ctx.stroke(); } } Canvas { id: checkedCanvas anchors.fill: parent anchors.margins: -(__buttonHelper.radius * 3) visible: !control.checked readonly property real xCenter: width / 2 readonly property real yCenter: height / 2 onPaint: { var ctx = getContext("2d"); ctx.reset(); /* Draw checked indicator */ ctx.beginPath(); ctx.lineWidth = __buttonHelper.outerArcLineWidth - __buttonHelper.innerArcLineWidth; ctx.arc(xCenter, yCenter, __buttonHelper.outerArcRadius + __buttonHelper.innerArcLineWidth / 2, MathUtils.degToRad(270), MathUtils.degToRad(0), false); var gradient = ctx.createLinearGradient(xCenter, yCenter + __buttonHelper.radius, xCenter, yCenter - __buttonHelper.radius); var relevantGradient = control.checked ? checkedGradient : inactiveGradient; for (var i = 0; i < relevantGradient.stops.length; ++i) { gradient.addColorStop(relevantGradient.stops[i].position, relevantGradient.stops[i].color); } ctx.strokeStyle = gradient; ctx.stroke(); } } DropShadow { id: uncheckedDropShadow anchors.fill: uncheckedCanvas cached: true color: uncheckedDropShadowColor source: uncheckedCanvas visible: !control.checked } DropShadow { id: checkedDropShadow anchors.fill: checkedCanvas cached: true color: checkedDropShadowColor source: checkedCanvas visible: control.checked } } panel: Item { implicitWidth: backgroundLoader.implicitWidth implicitHeight: backgroundLoader.implicitHeight Loader { id: backgroundLoader anchors.fill: parent sourceComponent: background } Loader { id: labelLoader sourceComponent: label anchors.fill: parent anchors.leftMargin: padding.left anchors.topMargin: padding.top anchors.rightMargin: padding.right anchors.bottomMargin: padding.bottom } } }