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// Copyright (c) 2017 Ultimaker B.V.
// Cura is released under the terms of the LGPLv3 or higher.
import QtQuick 2.2
import QtQuick.Controls 1.2
import QtQuick.Layouts 1.1
import QtQuick.Controls.Styles 1.1
import UM 1.0 as UM
import Cura 1.0 as Cura
Item
{
id: sliderRoot
// Handle properties
property real handleSize: UM.Theme.getSize("slider_handle").width
property real handleRadius: handleSize / 2
property real minimumRangeHandleSize: handleSize / 2
property color upperHandleColor: UM.Theme.getColor("slider_handle")
property color lowerHandleColor: UM.Theme.getColor("slider_handle")
property color rangeHandleColor: UM.Theme.getColor("slider_groove_fill")
property color handleActiveColor: UM.Theme.getColor("slider_handle_active")
property var activeHandle: upperHandle
// Track properties
property real trackThickness: UM.Theme.getSize("slider_groove").width // width of the slider track
property real trackRadius: UM.Theme.getSize("slider_groove_radius").width
property color trackColor: UM.Theme.getColor("slider_groove")
// value properties
property real maximumValue: 100
property real minimumValue: 0
property real minimumRange: 0 // minimum range allowed between min and max values
property bool roundValues: true
property real upperValue: maximumValue
property real lowerValue: minimumValue
property bool layersVisible: true
property bool manuallyChanged: true // Indicates whether the value was changed manually or during simulation
function getUpperValueFromSliderHandle()
{
return upperHandle.getValue()
}
function setUpperValue(value)
{
upperHandle.setValue(value)
updateRangeHandle()
}
function getLowerValueFromSliderHandle()
{
return lowerHandle.getValue()
}
function setLowerValue(value)
{
lowerHandle.setValue(value)
updateRangeHandle()
}
function updateRangeHandle()
{
rangeHandle.height = lowerHandle.y - (upperHandle.y + upperHandle.height)
}
// set the active handle to show only one label at a time
function setActiveHandle(handle)
{
activeHandle = handle
}
function normalizeValue(value)
{
return Math.min(Math.max(value, sliderRoot.minimumValue), sliderRoot.maximumValue)
}
// Slider track
Rectangle
{
id: track
width: sliderRoot.trackThickness
height: sliderRoot.height - sliderRoot.handleSize
radius: sliderRoot.trackRadius
anchors.centerIn: sliderRoot
color: sliderRoot.trackColor
visible: sliderRoot.layersVisible
}
// Range handle
Item
{
id: rangeHandle
y: upperHandle.y + upperHandle.height
width: sliderRoot.handleSize
height: sliderRoot.minimumRangeHandleSize
anchors.horizontalCenter: sliderRoot.horizontalCenter
visible: sliderRoot.layersVisible
// Set the new value when dragging
function onHandleDragged()
{
sliderRoot.manuallyChanged = true
upperHandle.y = y - upperHandle.height
lowerHandle.y = y + height
var upperValue = sliderRoot.getUpperValueFromSliderHandle()
var lowerValue = sliderRoot.getLowerValueFromSliderHandle()
// set both values after moving the handle position
UM.SimulationView.setCurrentLayer(upperValue)
UM.SimulationView.setMinimumLayer(lowerValue)
}
function setValueManually(value)
{
sliderRoot.manuallyChanged = true
upperHandle.setValue(value)
}
function setValue(value)
{
var range = sliderRoot.upperValue - sliderRoot.lowerValue
value = Math.min(value, sliderRoot.maximumValue)
value = Math.max(value, sliderRoot.minimumValue + range)
UM.SimulationView.setCurrentLayer(value)
UM.SimulationView.setMinimumLayer(value - range)
}
Rectangle
{
width: sliderRoot.trackThickness
height: parent.height + sliderRoot.handleSize
anchors.centerIn: parent
radius: sliderRoot.trackRadius
color: sliderRoot.rangeHandleColor
}
MouseArea
{
anchors.fill: parent
drag
{
target: parent
axis: Drag.YAxis
minimumY: upperHandle.height
maximumY: sliderRoot.height - (rangeHandle.height + lowerHandle.height)
}
onPositionChanged: parent.onHandleDragged()
onPressed:
{
sliderRoot.setActiveHandle(rangeHandle)
sliderRoot.forceActiveFocus()
}
}
}
onHeightChanged : {
// After a height change, the pixel-position of the lower handle is out of sync with the property value
setLowerValue(lowerValue)
}
// Upper handle
Rectangle
{
id: upperHandle
y: sliderRoot.height - (sliderRoot.minimumRangeHandleSize + 2 * sliderRoot.handleSize)
width: sliderRoot.handleSize
height: sliderRoot.handleSize
anchors.horizontalCenter: sliderRoot.horizontalCenter
radius: sliderRoot.handleRadius
color: upperHandleLabel.activeFocus ? sliderRoot.handleActiveColor : sliderRoot.upperHandleColor
visible: sliderRoot.layersVisible
function onHandleDragged()
{
sliderRoot.manuallyChanged = true
// don't allow the lower handle to be heigher than the upper handle
if (lowerHandle.y - (y + height) < sliderRoot.minimumRangeHandleSize)
{
lowerHandle.y = y + height + sliderRoot.minimumRangeHandleSize
}
// update the range handle
sliderRoot.updateRangeHandle()
// set the new value after moving the handle position
UM.SimulationView.setCurrentLayer(getValue())
}
// get the upper value based on the slider position
function getValue()
{
var result = y / (sliderRoot.height - (2 * sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize))
result = sliderRoot.maximumValue + result * (sliderRoot.minimumValue - (sliderRoot.maximumValue - sliderRoot.minimumValue))
result = sliderRoot.roundValues ? Math.round(result) : result
return result
}
function setValueManually(value)
{
sliderRoot.manuallyChanged = true
upperHandle.setValue(value)
}
// set the slider position based on the upper value
function setValue(value)
{
// Normalize values between range, since using arrow keys will create out-of-the-range values
value = sliderRoot.normalizeValue(value)
UM.SimulationView.setCurrentLayer(value)
var diff = (value - sliderRoot.maximumValue) / (sliderRoot.minimumValue - sliderRoot.maximumValue)
// In case there is only one layer, the diff value results in a NaN, so this is for catching this specific case
if (isNaN(diff))
{
diff = 0
}
var newUpperYPosition = Math.round(diff * (sliderRoot.height - (2 * sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize)))
y = newUpperYPosition
// update the range handle
sliderRoot.updateRangeHandle()
}
Keys.onUpPressed: upperHandleLabel.setValue(upperHandleLabel.value + ((event.modifiers & Qt.ShiftModifier) ? 10 : 1))
Keys.onDownPressed: upperHandleLabel.setValue(upperHandleLabel.value - ((event.modifiers & Qt.ShiftModifier) ? 10 : 1))
// dragging
MouseArea
{
anchors.fill: parent
drag
{
target: parent
axis: Drag.YAxis
minimumY: 0
maximumY: sliderRoot.height - (2 * sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize)
}
onPositionChanged: parent.onHandleDragged()
onPressed:
{
sliderRoot.setActiveHandle(upperHandle)
upperHandleLabel.forceActiveFocus()
}
}
SimulationSliderLabel
{
id: upperHandleLabel
height: sliderRoot.handleSize + UM.Theme.getSize("small_margin").height
anchors.bottom: parent.top
anchors.bottomMargin: UM.Theme.getSize("narrow_margin").height
anchors.horizontalCenter: parent.horizontalCenter
target: Qt.point(parent.width / 2, parent.top)
visible: sliderRoot.activeHandle == parent || sliderRoot.activeHandle == rangeHandle
// custom properties
maximumValue: sliderRoot.maximumValue
value: sliderRoot.upperValue
busy: UM.SimulationView.busy
setValue: upperHandle.setValueManually // connect callback functions
}
}
// Lower handle
Rectangle
{
id: lowerHandle
y: sliderRoot.height - sliderRoot.handleSize
width: parent.handleSize
height: parent.handleSize
anchors.horizontalCenter: parent.horizontalCenter
radius: sliderRoot.handleRadius
color: lowerHandleLabel.activeFocus ? sliderRoot.handleActiveColor : sliderRoot.lowerHandleColor
visible: sliderRoot.layersVisible
function onHandleDragged()
{
sliderRoot.manuallyChanged = true
// don't allow the upper handle to be lower than the lower handle
if (y - (upperHandle.y + upperHandle.height) < sliderRoot.minimumRangeHandleSize)
{
upperHandle.y = y - (upperHandle.heigth + sliderRoot.minimumRangeHandleSize)
}
// update the range handle
sliderRoot.updateRangeHandle()
// set the new value after moving the handle position
UM.SimulationView.setMinimumLayer(getValue())
}
// get the lower value from the current slider position
function getValue()
{
var result = (y - (sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize)) / (sliderRoot.height - (2 * sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize));
result = sliderRoot.maximumValue - sliderRoot.minimumRange + result * (sliderRoot.minimumValue - (sliderRoot.maximumValue - sliderRoot.minimumRange))
result = sliderRoot.roundValues ? Math.round(result) : result
return result
}
function setValueManually(value)
{
sliderRoot.manuallyChanged = true
lowerHandle.setValue(value)
}
// set the slider position based on the lower value
function setValue(value)
{
// Normalize values between range, since using arrow keys will create out-of-the-range values
value = sliderRoot.normalizeValue(value)
UM.SimulationView.setMinimumLayer(value)
var diff = (value - sliderRoot.maximumValue) / (sliderRoot.minimumValue - sliderRoot.maximumValue)
// In case there is only one layer, the diff value results in a NaN, so this is for catching this specific case
if (isNaN(diff))
{
diff = 0
}
var newLowerYPosition = Math.round((sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize) + diff * (sliderRoot.height - (2 * sliderRoot.handleSize + sliderRoot.minimumRangeHandleSize)))
y = newLowerYPosition
// update the range handle
sliderRoot.updateRangeHandle()
}
Keys.onUpPressed: lowerHandleLabel.setValue(lowerHandleLabel.value + ((event.modifiers & Qt.ShiftModifier) ? 10 : 1))
Keys.onDownPressed: lowerHandleLabel.setValue(lowerHandleLabel.value - ((event.modifiers & Qt.ShiftModifier) ? 10 : 1))
// dragging
MouseArea
{
anchors.fill: parent
drag
{
target: parent
axis: Drag.YAxis
minimumY: upperHandle.height + sliderRoot.minimumRangeHandleSize
maximumY: sliderRoot.height - parent.height
}
onPositionChanged: parent.onHandleDragged()
onPressed:
{
sliderRoot.setActiveHandle(lowerHandle)
lowerHandleLabel.forceActiveFocus()
}
}
SimulationSliderLabel
{
id: lowerHandleLabel
height: sliderRoot.handleSize + UM.Theme.getSize("small_margin").height
anchors.top: parent.bottom
anchors.topMargin: UM.Theme.getSize("narrow_margin").height
anchors.horizontalCenter: parent.horizontalCenter
target: Qt.point(parent.width / 2, parent.bottom)
visible: sliderRoot.activeHandle == parent || sliderRoot.activeHandle == rangeHandle
// custom properties
maximumValue: sliderRoot.maximumValue
value: sliderRoot.lowerValue
busy: UM.SimulationView.busy
setValue: lowerHandle.setValueManually // connect callback functions
}
}
}
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