58 lines
1.8 KiB
QML
58 lines
1.8 KiB
QML
/*
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Copyright (C) 2017 Michal Kosciesza <michal@mkiol.net>
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This file is part of Kaktus.
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Kaktus is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Kaktus is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Kaktus. If not, see <http://www.gnu.org/licenses/>.
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*/
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import QtQuick 2.0
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import Sailfish.Silica 1.0
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Rectangle {
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id: root
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property string text
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//Source: http://werxltd.com/wp/2010/05/13/javascript-implementation-of-javas-string-hashcode-method/
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function hash(text, index) {
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var hash = 0, i, chr, len
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if (text.length === 0 || text.length < index) return hash
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for (i = index, len = text.length; i < len; i++) {
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chr = text.charCodeAt(i)
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hash = ((hash << 5) - hash) + chr
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}
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return Math.abs(hash)%255
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}
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Component.onCompleted: {
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var r = text.length > 0 ? hash(text,0)/255 : 1
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var g = text.length > 1 ? hash(text,1)/255 : 1
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var b = text.length > 2 ? hash(text,2)/255 : 1
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var base = Qt.rgba(r, g, b, .8)
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var colorBg = Qt.darker(base, 1.5)
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var colorFg = Qt.lighter(base, 3.0)
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color = colorBg
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label.color = colorFg
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}
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Label {
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id: label
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text: root.text.substring(0,1).toUpperCase()
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horizontalAlignment: Text.AlignHCenter
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verticalAlignment: Text.AlignVCenter
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font.pixelSize: root.height * 0.8
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anchors.fill: parent
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}
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}
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