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Diffstat (limited to 'src/qtdesktop/ScrollBar.qml')
| -rw-r--r-- | src/qtdesktop/ScrollBar.qml | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/src/qtdesktop/ScrollBar.qml b/src/qtdesktop/ScrollBar.qml new file mode 100644 index 00000000..5e20190c --- /dev/null +++ b/src/qtdesktop/ScrollBar.qml @@ -0,0 +1,206 @@ +/**************************************************************************** +** +** 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 + +Item { + id: scrollbar + + property int orientation: Qt.Horizontal + property alias minimumValue: slider.minimumValue + property alias maximumValue: slider.maximumValue + property int pageStep: internal.horizontal ? width : height + property int singleStep: 20 + property alias value: slider.value + property bool scrollToClickposition: internal.scrollToClickPosition + + implicitWidth: loader.implicitWidth + implicitHeight: loader.implicitHeight + + onValueChanged: internal.updateHandle() + + property Component style: Qt.createComponent(Settings.THEME_PATH + "/ScrollBarStyle.qml") + + property bool upPressed + property bool downPressed + + property bool pageUpPressed + property bool pageDownPressed + + MouseArea { + id: internal + + property bool horizontal: orientation === Qt.Horizontal + property alias styleItem: loader.item + + anchors.fill: parent + + property bool autoincrement: false + property bool scrollToClickPosition: styleItem ? styleItem.scrollToClickPosition : 0 + property bool handlePressed + + // Update hover item + onEntered: styleItem.activeControl = styleItem.hitTest(mouseX, mouseY) + onExited: styleItem.activeControl = "none" + onMouseXChanged: styleItem.activeControl = styleItem.hitTest(mouseX, mouseY) + hoverEnabled: true + + property variant control + property variant pressedX + property variant pressedY + property int oldPosition + property int grooveSize + + Timer { + running: upPressed || downPressed || pageUpPressed || pageDownPressed + interval: 350 + onTriggered: internal.autoincrement = true + } + + Timer { + running: internal.autoincrement + interval: 60 + repeat: true + onTriggered: upPressed ? internal.decrement() : downPressed ? internal.increment() : + pageUpPressed ? internal.decrementPage() : + internal.incrementPage() + } + + onPositionChanged: { + if (pressed && control === "handle") { + //slider.positionAtMaximum = grooveSize + if (!horizontal) + slider.position = oldPosition + (mouseY - pressedY) + else + slider.position = oldPosition + (mouseX - pressedX) + } + } + + onPressed: { + control = styleItem.hitTest(mouseX, mouseY) + scrollToClickposition = scrollToClickPosition + grooveSize = horizontal ? styleItem.subControlRect("groove").width - + styleItem.subControlRect("handle").width: + styleItem.subControlRect("groove").height - + styleItem.subControlRect("handle").height; + if (control == "handle") { + pressedX = mouseX + pressedY = mouseY + oldPosition = slider.position + } else if (control == "up") { + decrement(); + upPressed = true + } else if (control == "down") { + increment(); + downPressed = true + } else if (!scrollToClickposition){ + if (control == "upPage") { + decrementPage(); + pageUpPressed = true + } else if (control == "downPage") { + incrementPage(); + pageDownPressed = true + } + } else { + slider.position = horizontal ? mouseX - handleRect.width/2 + : mouseY - handleRect.height/2 + } + } + + onReleased: { + autoincrement = false; + upPressed = false; + downPressed = false; + pageUpPressed = false + pageDownPressed = false + control = "" + } + + function incrementPage() { + value += pageStep + if (value > maximumValue) + value = maximumValue + } + + function decrementPage() { + value -= pageStep + if (value < minimumValue) + value = minimumValue + } + + function increment() { + value += singleStep + if (value > maximumValue) + value = maximumValue + } + + function decrement() { + value -= singleStep + if (value < minimumValue) + value = minimumValue + } + + Loader { + id: loader + property Item control: scrollbar + sourceComponent: style + anchors.fill: parent + } + + property rect handleRect: Qt.rect(0,0,0,0) + property rect grooveRect: Qt.rect(0,0,0,0) + function updateHandle() { + internal.handleRect = styleItem.subControlRect("handle") + grooveRect = styleItem.subControlRect("groove"); + } + + RangeModel { + id: slider + minimumValue: 0.0 + maximumValue: 1.0 + value: 0 + stepSize: 0.0 + inverted: false + positionAtMaximum: internal.grooveSize + } + } +} |