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/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Controls 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 QtQuick.Controls 1.2 import QtQuick.Controls.Private 1.0 /*! \qmltype ScrollViewStyle \inqmlmodule QtQuick.Controls.Styles \since 5.1 \ingroup viewsstyling \ingroup controlsstyling \brief Provides custom styling for ScrollView. */ Style { id: root /*! The \l ScrollView this style is attached to. */ readonly property ScrollView control: __control /*! This property controls the frame border padding of the scrollView. */ padding {left: 1; top: 1; right: 1; bottom: 1} /*! This Component paints the corner area between scroll bars */ property Component corner: Rectangle { color: "#ccc" } /*! This component determines if the flickable should reposition itself at the mouse location when clicked. */ property bool scrollToClickedPosition: true /*! This property holds whether the scroll bars are transient. Transient scroll bars appear when the content is scrolled and disappear when they are no longer needed. The default value is platform dependent. */ property bool transientScrollBars: Settings.isMobile && Settings.hasTouchScreen /*! This Component paints the frame around scroll bars. */ property Component frame: Rectangle { color: control["backgroundVisible"] ? "white": "transparent" border.color: "#999" border.width: 1 radius: 1 visible: control.frameVisible } /*! This is the minimum extent of the scroll bar handle. The default value is \c 30. */ property int minimumHandleLength: 30 /*! This property controls the edge overlap between the handle and the increment/decrement buttons. The default value is \c 30. */ property int handleOverlap: 1 /*! This component controls the appearance of the scroll bar background. You can access the following state properties: \table \row \li property bool \b styleData.hovered \row \li property bool \b styleData.horizontal \endtable */ property Component scrollBarBackground: Item { property bool sticky: false property bool hovered: styleData.hovered implicitWidth: Math.round(TextSingleton.implicitHeight) implicitHeight: Math.round(TextSingleton.implicitHeight) clip: true opacity: transientScrollBars ? 0.5 : 1.0 visible: !Settings.hasTouchScreen && (!transientScrollBars || sticky) Rectangle { anchors.fill: parent color: "#ddd" border.color: "#aaa" anchors.rightMargin: styleData.horizontal ? -2 : -1 anchors.leftMargin: styleData.horizontal ? -2 : 0 anchors.topMargin: styleData.horizontal ? 0 : -2 anchors.bottomMargin: styleData.horizontal ? -1 : -2 } onHoveredChanged: if (hovered) sticky = true onVisibleChanged: if (!visible) sticky = false } /*! This component controls the appearance of the scroll bar handle. You can access the following state properties: \table \row \li property bool \b styleData.hovered \row \li property bool \b styleData.pressed \row \li property bool \b styleData.horizontal \endtable */ property Component handle: Item { property bool sticky: false property bool hovered: __activeControl !== "none" implicitWidth: Math.round(TextSingleton.implicitHeight) + 1 implicitHeight: Math.round(TextSingleton.implicitHeight) + 1 BorderImage { id: img opacity: styleData.pressed && !transientScrollBars ? 0.5 : styleData.hovered ? 1 : 0.8 source: "images/scrollbar-handle-" + (transientScrollBars ? "transient" : styleData.horizontal ? "horizontal" : "vertical") + ".png" border.left: transientScrollBars ? 5 : 2 border.top: transientScrollBars ? 5 : 2 border.right: transientScrollBars ? 5 : 2 border.bottom: transientScrollBars ? 5 : 2 anchors.top: !styleData.horizontal ? parent.top : undefined anchors.margins: transientScrollBars ? 2 : 0 anchors.bottom: parent.bottom anchors.right: parent.right anchors.left: styleData.horizontal ? parent.left : undefined width: !styleData.horizontal && transientScrollBars ? sticky ? 13 : 10 : parent.width height: styleData.horizontal && transientScrollBars ? sticky ? 13 : 10 : parent.height Behavior on width { enabled: !styleData.horizontal && transientScrollBars; NumberAnimation { duration: 100 } } Behavior on height { enabled: styleData.horizontal && transientScrollBars; NumberAnimation { duration: 100 } } } onHoveredChanged: if (hovered) sticky = true onVisibleChanged: if (!visible) sticky = false } /*! This component controls the appearance of the scroll bar increment button. You can access the following state properties: \table \row \li property bool \b styleData.hovered \row \li property bool \b styleData.pressed \row \li property bool \b styleData.horizontal \endtable */ property Component incrementControl: Rectangle { visible: !transientScrollBars implicitWidth: transientScrollBars ? 0 : Math.round(TextSingleton.implicitHeight) implicitHeight: transientScrollBars ? 0 : Math.round(TextSingleton.implicitHeight) Rectangle { anchors.fill: parent anchors.bottomMargin: -1 anchors.rightMargin: -1 border.color: "#aaa" Rectangle { anchors.fill: parent anchors.margins: 1 color: "transparent" border.color: "#44ffffff" } Image { source: styleData.horizontal ? "images/arrow-right.png" : "images/arrow-down.png" anchors.centerIn: parent opacity: control.enabled ? 0.6 : 0.5 } gradient: Gradient { GradientStop {color: styleData.pressed ? "lightgray" : "white" ; position: 0} GradientStop {color: styleData.pressed ? "lightgray" : "lightgray" ; position: 1} } } } /*! This component controls the appearance of the scroll bar decrement button. You can access the following state properties: \table \row \li property bool \b styleData.hovered \row \li property bool \b styleData.pressed \row \li property bool \b styleData.horizontal \endtable */ property Component decrementControl: Rectangle { visible: !transientScrollBars implicitWidth: transientScrollBars ? 0 : Math.round(TextSingleton.implicitHeight) implicitHeight: transientScrollBars ? 0 : Math.round(TextSingleton.implicitHeight) Rectangle { anchors.fill: parent anchors.topMargin: styleData.horizontal ? 0 : -1 anchors.leftMargin: styleData.horizontal ? -1 : 0 anchors.bottomMargin: styleData.horizontal ? -1 : 0 anchors.rightMargin: styleData.horizontal ? 0 : -1 color: "lightgray" Rectangle { anchors.fill: parent anchors.margins: 1 color: "transparent" border.color: "#44ffffff" } Image { source: styleData.horizontal ? "images/arrow-left.png" : "images/arrow-up.png" anchors.centerIn: parent anchors.verticalCenterOffset: styleData.horizontal ? 0 : -1 anchors.horizontalCenterOffset: styleData.horizontal ? -1 : 0 opacity: control.enabled ? 0.6 : 0.5 } gradient: Gradient { GradientStop {color: styleData.pressed ? "lightgray" : "white" ; position: 0} GradientStop {color: styleData.pressed ? "lightgray" : "lightgray" ; position: 1} } border.color: "#aaa" } } /*! \internal */ property Component __scrollbar: Item { id: panel property string activeControl: "none" property bool scrollToClickPosition: true property bool isTransient: transientScrollBars property bool on: false property bool raised: false property bool sunken: __styleData.upPressed | __styleData.downPressed | __styleData.handlePressed states: State { name: "out" when: isTransient && (!__stickyScrollbars || !flickableItem.moving) && panel.activeControl === "none" && !panel.on && !panel.raised PropertyChanges { target: panel; opacity: 0 } } transitions: Transition { to: "out" SequentialAnimation { PauseAnimation { duration: root.__scrollBarFadeDelay } NumberAnimation { properties: "opacity"; duration: root.__scrollBarFadeDuration } PropertyAction { target: panel; property: "visible"; value: false } } } implicitWidth: __styleData.horizontal ? 200 : bg.implicitWidth implicitHeight: __styleData.horizontal ? bg.implicitHeight : 200 function pixelMetric(arg) { if (arg === "scrollbarExtent") return (__styleData.horizontal ? bg.height : bg.width); return 0; } function styleHint(arg) { return false; } function hitTest(argX, argY) { if (itemIsHit(handleControl, argX, argY)) return "handle" else if (itemIsHit(incrementLoader, argX, argY)) return "up"; else if (itemIsHit(decrementLoader, argX, argY)) return "down"; else if (itemIsHit(bg, argX, argY)) { if (__styleData.horizontal && argX < handleControl.x || !__styleData.horizontal && argY < handleControl.y) return "upPage" else return "downPage" } return "none"; } function subControlRect(arg) { if (arg === "handle") { return Qt.rect(handleControl.x, handleControl.y, handleControl.width, handleControl.height); } else if (arg === "groove") { if (__styleData.horizontal) { return Qt.rect(incrementLoader.width - handleOverlap, 0, __control.width - (incrementLoader.width + decrementLoader.width - handleOverlap * 2), __control.height); } else { return Qt.rect(0, incrementLoader.height - handleOverlap, __control.width, __control.height - (incrementLoader.height + decrementLoader.height - handleOverlap * 2)); } } return Qt.rect(0,0,0,0); } function itemIsHit(argItem, argX, argY) { var pos = argItem.mapFromItem(__control, argX, argY); return (pos.x >= 0 && pos.x <= argItem.width && pos.y >= 0 && pos.y <= argItem.height); } Loader { id: incrementLoader anchors.top: parent.top anchors.left: parent.left sourceComponent: decrementControl property QtObject styleData: QtObject { readonly property bool hovered: activeControl === "up" readonly property bool pressed: __styleData.upPressed readonly property bool horizontal: __styleData.horizontal } } Loader { id: bg anchors.top: __styleData.horizontal ? undefined : incrementLoader.bottom anchors.bottom: __styleData.horizontal ? undefined : decrementLoader.top anchors.left: __styleData.horizontal ? incrementLoader.right : undefined anchors.right: __styleData.horizontal ? decrementLoader.left : undefined sourceComponent: scrollBarBackground property QtObject styleData: QtObject { readonly property bool horizontal: __styleData.horizontal readonly property bool hovered: activeControl !== "none" } } Loader { id: decrementLoader anchors.bottom: __styleData.horizontal ? undefined : parent.bottom anchors.right: __styleData.horizontal ? parent.right : undefined sourceComponent: incrementControl property QtObject styleData: QtObject { readonly property bool hovered: activeControl === "down" readonly property bool pressed: __styleData.downPressed readonly property bool horizontal: __styleData.horizontal } } property var flickableItem: control.flickableItem property int extent: Math.max(minimumHandleLength, __styleData.horizontal ? Math.min(1, ((flickableItem && flickableItem.contentWidth > 0.0) ? flickableItem.width/flickableItem.contentWidth : 1)) * bg.width : Math.min(1, ((flickableItem && flickableItem.contentHeight > 0.0) ? flickableItem.height/flickableItem.contentHeight : 1)) * bg.height) readonly property real range: __control.maximumValue - __control.minimumValue readonly property real begin: __control.value - __control.minimumValue Loader { id: handleControl height: __styleData.horizontal ? implicitHeight : extent width: __styleData.horizontal ? extent : implicitWidth anchors.top: bg.top anchors.left: bg.left anchors.topMargin: __styleData.horizontal || range === 0 ? 0 : -handleOverlap + (2 * begin * (bg.height + (2 * handleOverlap) - extent) + range) / (2 * range) anchors.leftMargin: __styleData.horizontal && range !== 0 ? -handleOverlap + (2 * begin * (bg.width + (2 * handleOverlap) - extent) + range) / (2 * range) : 0 sourceComponent: handle property QtObject styleData: QtObject { readonly property bool hovered: activeControl === "handle" readonly property bool pressed: __styleData.handlePressed readonly property bool horizontal: __styleData.horizontal } readonly property alias __activeControl: panel.activeControl } } /*! \internal */ property bool __externalScrollBars: false /*! \internal */ property int __scrollBarSpacing: 4 /*! \internal */ property int __scrollBarFadeDelay: 450 /*! \internal */ property int __scrollBarFadeDuration: 200 /*! \internal */ property bool __stickyScrollbars: false }