LedDisplay/OmobiDisplayApp/ressources/qml/ColorPicker.qml
Dorian Zedler 5a16d3ebdc
- added color indicator to main overview page
- redesigned chips and made them consistent
2020-10-15 12:52:19 +02:00

92 lines
2.1 KiB
QML

import QtQuick 2.0
import QtQuick.Controls 2.0
import QtQuick.Layouts 1.0
import QtQuick.Controls.Material 2.0
Rectangle {
id: control
property string value: ""
property string currentColor: rgbToHex(redSlider.value, greenSlider.value, blueSlider.value)
property bool isDarkColor: control.checkIsDarkColor(value)
onValueChanged: {
var rgb = hexToRgb(value)
redSlider.value = rgb.r
greenSlider.value = rgb.g
blueSlider.value = rgb.b
}
onCurrentColorChanged: {
value = currentColor
}
function rgbToHex(r, g, b) {
return "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
}
function hexToRgb(hex) {
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result ? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16)
} : null;
}
function checkIsDarkColor(color) {
var rgb = hexToRgb(color)
var luma = 0.2126 * rgb.r + 0.7152 * rgb.g + 0.0722 * rgb.b; // per ITU-R BT.709
return luma < 50
}
ColumnLayout {
anchors.fill: parent
Pane {
Layout.fillWidth: true
Layout.preferredHeight: parent.height * 0.5
Material.background: control.currentColor
Material.elevation: 5
}
Slider {
id: redSlider
Layout.fillWidth: true
Layout.fillHeight: true
from: 0
to: 255
stepSize: 1
Material.accent: Material.Red
}
Slider {
id: greenSlider
Layout.fillWidth: true
Layout.fillHeight: true
from: 0
to: 255
stepSize: 1
Material.accent: Material.Green
}
Slider {
id: blueSlider
Layout.fillWidth: true
Layout.fillHeight: true
from: 0
to: 255
stepSize: 1
Material.accent: Material.Blue
}
}
}