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Direktori : C:/Windows/Temp/MBInstallTemp/ctlrpkg/QtQuick/Controls/Styles/Base/ |
Current File : C:/Windows/Temp/MBInstallTemp/ctlrpkg/QtQuick/Controls/Styles/Base/HandleStyleHelper.qml |
/**************************************************************************** ** ** 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 QtObject { id: handleStyleHelper property color handleColorTop: "#969696" property color handleColorBottom: Qt.rgba(0.9, 0.9, 0.9, 0.298) property real handleColorBottomStop: 0.7 property color handleRingColorTop: "#b0b0b0" property color handleRingColorBottom: "transparent" /*! If \a ctx is the only argument, this is equivalent to calling paintHandle(\c ctx, \c 0, \c 0, \c ctx.canvas.width, \c ctx.canvas.height). */ function paintHandle(ctx, handleX, handleY, handleWidth, handleHeight) { ctx.reset(); if (handleWidth < 0) return; if (arguments.length == 1) { handleX = 0; handleY = 0; handleWidth = ctx.canvas.width; handleHeight = ctx.canvas.height; } ctx.beginPath(); var gradient = ctx.createRadialGradient(handleX, handleY, 0, handleX, handleY, handleWidth * 1.5); gradient.addColorStop(0, handleColorTop); gradient.addColorStop(handleColorBottomStop, handleColorBottom); ctx.ellipse(handleX, handleY, handleWidth, handleHeight); ctx.fillStyle = gradient; ctx.fill(); /* Draw the ring gradient around the handle. */ // Clip first, so we only draw inside the ring. ctx.beginPath(); ctx.ellipse(handleX, handleY, handleWidth, handleHeight); ctx.ellipse(handleX + 2, handleY + 2, handleWidth - 4, handleHeight - 4); ctx.clip(); ctx.beginPath(); gradient = ctx.createLinearGradient(handleX + handleWidth / 2, handleY, handleX + handleWidth / 2, handleY + handleHeight); gradient.addColorStop(0, handleRingColorTop); gradient.addColorStop(1, handleRingColorBottom); ctx.ellipse(handleX, handleY, handleWidth, handleHeight); ctx.fillStyle = gradient; ctx.fill(); } }