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powersync-app/nymea-app/ui/components/BrightnessSlider.qml

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QML

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
*
* This file is part of nymea.
* This project including source code and documentation is protected by
* copyright law, and remains the property of nymea GmbH. All rights, including
* reproduction, publication, editing and translation, are reserved. The use of
* this project is subject to the terms of a license agreement to be concluded
* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
* under https://nymea.io/license
*
* GNU General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, GNU version 3. This project is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this project. If not, see <https://www.gnu.org/licenses/>.
*
* For any further details and any questions please contact us under
* contact@nymea.io or see our FAQ/Licensing Information on
* https://nymea.io/license/faq
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
import QtQuick 2.9
import QtGraphicalEffects 1.0
import Nymea 1.0
import "../utils"
Item {
id: root
implicitWidth: orientation == Qt.Horizontal ? 300 : 12
implicitHeight: orientation == Qt.Horizontal ? 12 : 300
property Thing thing: null
readonly property StateType brightnessStateType: root.thing.thingClass.stateTypes.findByName("brightness")
property int value: thing.stateByName("brightness").value
property int orientation: Qt.Horizontal
readonly property State powerState: thing ? thing.stateByName("power") : null
ActionQueue {
id: actionQueue
thing: root.thing
stateName: "brightness"
}
Rectangle {
id: clipRect
anchors.fill: parent
radius: Style.cornerRadius
color: Style.tileOverlayColor
}
LinearGradient {
anchors.fill: parent
anchors.rightMargin: root.orientation == Qt.Horizontal ?
parent.width - (dragHandle.x + dragHandle.width / 2)
: 0
anchors.topMargin: root.orientation == Qt.Vertical ?
dragHandle.y + dragHandle.height / 2
: 0
start: root.orientation == Qt.Horizontal ? Qt.point(0,0) : Qt.point(0, height)
end: root.orientation == Qt.Horizontal ? Qt.point(width, 0) : Qt.point(0, 0)
source: clipRect
gradient: Gradient {
GradientStop { position: 0.0; color: "transparent" }
GradientStop { position: 1.0; color: "#55ffffff" }
}
}
Rectangle {
id: dragHandle
x: root.orientation === Qt.Horizontal ?
(actionQueue.pendingValue || root.value) * (root.width - dragHandle.width) / 100
: 0
y: root.orientation === Qt.Vertical ?
root.height - dragHandle.height - ((actionQueue.pendingValue || root.value) * (root.height - dragHandle.height) / 100)
: 0
height: 14
width: 14
radius: 7
color: Style.foregroundColor
}
MouseArea {
anchors.fill: parent
anchors.margins: -Style.smallMargins
onPositionChanged: {
var minCt = root.brightnessStateType.minValue;
var maxCt = root.brightnessStateType.maxValue
var brightness;
if (root.orientation == Qt.Horizontal) {
brightness = Math.min(maxCt, Math.max(minCt, (mouseX * (maxCt - minCt) / (width - dragHandle.width)) + minCt))
} else {
brightness = Math.min(maxCt, Math.max(minCt, ((height - mouseY) * (maxCt - minCt) / (height - dragHandle.height)) + minCt))
}
if (brightness > 0 && root.powerState && root.powerState.value === false) {
root.thing.executeAction("power", [{paramName: "power", value: true}])
}
if (brightness === 0 && root.powerState && root.powerState.value === true) {
root.thing.executeAction("power", [{paramName: "power", value: false}])
}
actionQueue.sendValue(brightness);
}
}
}