Unity 8
BackgroundBlur.qml
1 /*
2  * Copyright (C) 2016 Canonical, Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 import QtQuick 2.12
18 import Ubuntu.Components 1.3
19 import QtGraphicalEffects 1.0
20 
21 Item {
22  id: root
23 
24  property Item sourceItem
25  property rect blurRect: Qt.rect(0,0,0,0)
26  property bool occluding: false
27 
28  ShaderEffectSource {
29  id: shaderEffectSource
30  sourceItem: root.sourceItem
31  hideSource: root.occluding
32  sourceRect: root.blurRect
33  live: false
34  }
35 
36  FastBlur {
37  id: fastBlur
38  x: blurRect.x
39  y: blurRect.y
40  width: blurRect.width
41  height: blurRect.height
42  source: shaderEffectSource
43  radius: units.gu(3)
44  cached: false
45  }
46 
47  Timer {
48  interval: 48
49  repeat: root.visible
50  running: repeat
51  onTriggered: shaderEffectSource.scheduleUpdate()
52  }
53  }