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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0 WITH Qt-GPL-exception-1.0
import QtQuick 2.15
import StudioTheme 1.0 as StudioTheme
Item {
id: root
property real value: 1
property real minimum: 0
property real maximum: 1
property bool pressed: mouseArea.pressed
property bool integer: false
property color color
signal clicked
signal moved
height: StudioTheme.Values.hueSliderHeight
function updatePos() {
if (root.maximum > root.minimum) {
var pos = track.width * (root.value - root.minimum) / (root.maximum - root.minimum)
return Math.min(Math.max(pos, 0), track.width)
} else {
return 0
}
}
Item {
id: track
width: parent.width
height: parent.height
Rectangle {
anchors.fill: parent
border.color: StudioTheme.Values.themeControlOutline
border.width: StudioTheme.Values.border
gradient: Gradient {
orientation: Gradient.Horizontal
GradientStop { position: 0.000; color: Qt.hsva(root.color.hsvHue, root.color.hsvSaturation, 1, 1) }
GradientStop { position: 1.000; color: "black" }
}
}
Rectangle {
id: handle
width: StudioTheme.Values.hueSliderHandleWidth
height: track.height + 4
anchors.verticalCenter: parent.verticalCenter
color: "transparent"
radius: 2
border.color: "black"
border.width: 1
x: root.updatePos() - handle.width * 0.5
y: 2
z: 1
Rectangle {
anchors.fill: parent
anchors.margins: 1
color: Qt.hsva(root.color.hsvHue, root.color.hsvSaturation, root.color.hsvValue, 1)
radius: 1
border.color: "white"
border.width: 1
}
}
MouseArea {
id: mouseArea
anchors.fill: parent
anchors.margins: -StudioTheme.Values.hueSliderHandleWidth * 0.5
preventStealing: true
function calculateValue() {
var halfHandle = StudioTheme.Values.hueSliderHandleWidth * 0.5
var handleX = Math.max(0, Math.min(mouseArea.mouseX - halfHandle, parent.width))
var realValue = (root.maximum - root.minimum) * handleX / parent.width + root.minimum
root.value = root.integer ? Math.round(realValue) : realValue
root.moved()
}
onPressed: mouseArea.calculateValue()
onReleased: root.clicked()
onPositionChanged: {
if (mouseArea.pressed)
mouseArea.calculateValue()
}
}
}
}
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