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Diffstat (limited to 'src/qtdesktop/Slider.qml')
| -rw-r--r-- | src/qtdesktop/Slider.qml | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/qtdesktop/Slider.qml b/src/qtdesktop/Slider.qml new file mode 100644 index 00000000..4e00c156 --- /dev/null +++ b/src/qtdesktop/Slider.qml @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Components project. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 +import QtDesktop 1.0 +import "Styles/Settings.js" as Settings + +// jens: ContainsMouse breaks drag functionality + +Item { + id: slider + + // Common API + property int orientation: Qt.Horizontal + property alias minimumValue: range.minimumValue + property alias maximumValue: range.maximumValue + property alias inverted: range.inverted + property bool updateValueWhileDragging: true + property alias pressed: mouseArea.pressed + property alias stepSize: range.stepSize + property alias hoverEnabled: mouseArea.hoverEnabled + property alias value: range.value + + // Destop API + property bool containsMouse: mouseArea.containsMouse + property bool activeFocusOnPress: false + property bool tickmarksEnabled: false + property string tickPosition: "Below" // "Above", "Below", "BothSides" + + Accessible.role: Accessible.Slider + Accessible.name: value + + // Reimplement this function to control how the value is shown in the + // indicator. + function formatValue(v) { + return Math.round(v); + } + + property var styleHints:[] + property Component style: Qt.createComponent(Settings.THEME_PATH + "/SliderStyle.qml") + + Keys.onRightPressed: value += (maximumValue - minimumValue)/10.0 + Keys.onLeftPressed: value -= (maximumValue - minimumValue)/10.0 + + implicitWidth: loader.item ? loader.item.implicitWidth : 0 + implicitHeight: loader.item ? loader.item.implicitHeight : 0 + + RangeModel { + id: range + minimumValue: 0.0 + maximumValue: 1.0 + value: 0 + stepSize: 0.0 + inverted: false + + positionAtMinimum: 0 + positionAtMaximum: slider.width + } + + Loader { + id: loader + sourceComponent: style + anchors.fill: parent + property var control: slider + function positionForValue(value) { return range.positionForValue(value) } + } + + Item { id: fakeHandle } + + MouseArea { + id: mouseArea + + hoverEnabled: true + anchors.centerIn: parent + + width: parent.width + height: parent.height + + drag.target: fakeHandle + drag.axis: Drag.XAxis + drag.minimumX: range.positionAtMinimum + drag.maximumX: range.positionAtMaximum + + onPressed: { + if (activeFocusOnPress) + slider.focus = true; + + // Clamp the value + var newX = Math.max(mouse.x, drag.minimumX); + newX = Math.min(newX, drag.maximumX); + + // Debounce the press: a press event inside the handler will not + // change its position, the user needs to drag it. + + // Note this really messes up things for scrollbar + // if (Math.abs(newX - fakeHandle.x) > handleLoader.width / 2) + range.position = newX; + } + + onReleased: { + // If we don't update while dragging, this is the only + // moment that the range is updated. + if (!slider.updateValueWhileDragging) + range.position = fakeHandle.x; + } + } + + + + // Range position normally follow fakeHandle, except when + // 'updateValueWhileDragging' is false. In this case it will only follow + // if the user is not pressing the handle. + Binding { + when: updateValueWhileDragging || !mouseArea.pressed + target: range + property: "position" + value: fakeHandle.x + } + + // During the drag, we simply ignore position set from the range, this + // means that setting a value while dragging will not "interrupt" the + // dragging activity. + Binding { + when: !mouseArea.drag.active + target: fakeHandle + property: "x" + value: range.position + } + + + WheelArea { + id: wheelarea + anchors.fill: parent + horizontalMinimumValue: slider.minimumValue + horizontalMaximumValue: slider.maximumValue + verticalMinimumValue: slider.minimumValue + verticalMaximumValue: slider.maximumValue + property double step: (slider.maximumValue - slider.minimumValue)/100 + + onVerticalWheelMoved: { + value += verticalDelta/4*step + } + + onHorizontalWheelMoved: { + value += horizontalDelta/4*step + } + } +} |