/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/OptionSelectorDelegate.qml is in qml-module-ubuntu-components 1.3.1918+16.04.20160404-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2012 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*!
\qmltype OptionSelectorDelegate
\inqmlmodule Ubuntu.Components 1.1
\ingroup ubuntu-components
\brief OptionSelector delegate which can display text, subtext and an image from a custom model.
Examples:
\qml
import Ubuntu.Components 1.3
Column {
width: 250
OptionSelector {
text: i18n.tr("Label")
model: customModel
delegate: OptionSelectorDelegate { text: name; subText: description; iconSource: image }
}
ListModel {
id: customModel
ListElement { name: "Name 1"; description: "Description 1"; image: "images.png" }
ListElement { name: "Name 2"; description: "Description 2"; image: "images.png" }
ListElement { name: "Name 3"; description: "Description 3"; image: "images.png" }
ListElement { name: "Name 4"; description: "Description 4"; image: "images.png" }
}
}
\endqml
*/
import QtQuick 2.4
import Ubuntu.Components.ListItems 1.3 as ListItem
import Ubuntu.Components 1.3 as Toolkit
ListItem.Empty {
id: option
__height: units.gu(5)
/*!
Subtext which appears below the main text.
*/
property string subText
/*!
\deprecated
\b{Use iconName or iconSource instead.}
Left icon url.
*/
property url icon: iconSource
onIconChanged: if (icon != iconSource) {
console.warn("WARNING: OptionSelectorDelegate.icon is DEPRECATED. " +
"Use iconName and iconSource instead.")
}
/*!
Constrains the size of the image to nothing greater than that of the delegate. Changes fillMode to Image.PreserveAspectFit.
*/
property bool constrainImage: false
/*!
Whether or not left image is coloured by our theme.
*/
property bool colourImage: listView.container.colourImage
/*!
Colour of left image.
*/
property color assetColour: listView.container.themeColour
/*!
OptionSelector's ListView.
*/
readonly property ListView listView: ListView.view
/*!
Colourising fragment shader.
*/
readonly property string fragColourShader:
"varying highp vec2 qt_TexCoord0;
uniform sampler2D source;
uniform lowp vec4 colour;
uniform lowp float qt_Opacity;
void main() {
lowp vec4 sourceColour = texture2D(source, qt_TexCoord0);
gl_FragColor = colour * sourceColour.a * qt_Opacity;
}"
showDivider: index !== listView.count - 1 ? 1 : 0
highlightWhenPressed: false
selected: ListView.isCurrentItem
anchors {
left: parent.left
right: parent.right
}
onClicked: {
if (listView.container.currentlyExpanded) {
listView.delegateClicked(index);
if (!listView.multiSelection) {
listView.previousIndex = listView.currentIndex;
listView.currentIndex = index;
} else {
selected = !selected;
}
}
if (!listView.expanded && !listView.multiSelection) {
listView.container.currentlyExpanded = !listView.container.currentlyExpanded;
}
}
Component.onCompleted: {
height = listView.itemHeight = childrenRect.height;
}
//Since we don't want to add states to our divider, we use the exposed alias provided in Empty to access it and alter it's opacity from here.
states: [ State {
name: "dividerExpanded"
when: listView.container.state === "expanded" && index === listView.currentIndex
PropertyChanges {
target: option.divider
opacity: 1
}
}, State {
name: "dividerCollapsed"
when: listView.container.state === "collapsed" && index === listView.currentIndex
PropertyChanges {
target: option.divider
opacity: 0
}
}
]
//As with our states, we apply the transition with our divider as the target.
transitions: [ Transition {
from: "dividerExpanded"
to: "dividerCollapsed"
Toolkit.UbuntuNumberAnimation {
target: option.divider
properties: "opacity"
duration: Toolkit.UbuntuAnimation.SlowDuration
}
}
]
resources: [
Connections {
target: listView.container
onCurrentlyExpandedChanged: {
imageExpansion.stop();
selectedImageCollapse.stop();
deselectedImageCollapse.stop();
if (listView.container.currentlyExpanded === true) {
if (!option.selected) {
optionExpansion.start();
//Ensure a source change. This solves a bug which happens occasionaly when source is switched correctly. Probably related to the image.source binding.
image.source = listView.container.tick
} else {
imageExpansion.start();
}
} else {
if (!option.selected) {
optionCollapse.start();
} else {
if (listView.previousIndex !== listView.currentIndex)
selectedImageCollapse.start();
else {
deselectedImageCollapse.start();
}
}
}
}
}, SequentialAnimation {
id: imageExpansion
PropertyAnimation {
target: image
properties: "opacity"
from : 1.0
to: 0.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
PauseAnimation { duration: Toolkit.UbuntuAnimation.BriskDuration - Toolkit.UbuntuAnimation.FastDuration }
PropertyAction {
target: image
property: "source"
value: listView.container.tick
}
PropertyAnimation {
target: image
properties: "opacity"
from : 0.0
to: 1.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
}, PropertyAnimation {
id: optionExpansion
target: option
properties: "opacity"
from : 0.0
to: 1.0
duration: Toolkit.UbuntuAnimation.SlowDuration
}, SequentialAnimation {
id: deselectedImageCollapse
PauseAnimation { duration: Toolkit.UbuntuAnimation.BriskDuration }
PropertyAnimation {
target: image
properties: "opacity"
from : 1.0
to: 0.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
PauseAnimation { duration: Toolkit.UbuntuAnimation.FastDuration }
PropertyAction {
target: image
property: "source"
value: listView.container.chevron
}
PropertyAnimation {
target: image
properties: "opacity"
from : 0.0
to: 1.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
}, SequentialAnimation {
id: selectedImageCollapse
PropertyAnimation {
target: image
properties: "opacity"
from : 0.0
to: 1.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
PauseAnimation { duration: Toolkit.UbuntuAnimation.BriskDuration - Toolkit.UbuntuAnimation.FastDuration }
PropertyAnimation {
target: image
properties: "opacity"
from : 1.0
to: 0.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
PauseAnimation { duration: Toolkit.UbuntuAnimation.FastDuration }
PropertyAction {
target: image
property: "source"
value: listView.container.chevron
}
PropertyAnimation {
target: image
properties: "opacity"
from : 0.0
to: 1.0
duration: Toolkit.UbuntuAnimation.FastDuration
}
}, PropertyAnimation {
id: optionCollapse
target: option
properties: "opacity"
from : 1.0
to: 0.0
duration: Toolkit.UbuntuAnimation.SlowDuration
}
]
Row {
spacing: units.gu(1)
anchors {
left: parent.left
leftMargin: units.gu(2)
verticalCenter: parent.verticalCenter
}
Image {
id: leftIcon
objectName: "icon"
height: constrainImage ? option.height : sourceSize.height
source: option.iconSource
fillMode: constrainImage ? Image.PreserveAspectFit : Image.Stretch
ShaderEffect {
property color colour: assetColour
property Image source: parent
width: source.width
height: source.height
visible: colourImage
fragmentShader: fragColourShader
}
}
Column {
anchors {
verticalCenter: parent.verticalCenter
}
clip: true
width: option.width - leftIcon.width - image.width
- parent.spacing * 2 - parent.anchors.leftMargin
Toolkit.Label {
text: option.text === "" ? modelData : option.text
width: parent.width
elide: Text.ElideRight
}
Toolkit.Label {
text: option.subText
width: parent.width
elide: Text.ElideRight
visible: option.subText !== "" ? true : false
textSize: Toolkit.Label.Small
}
}
Image {
id: image
width: units.gu(2)
height: units.gu(2)
source: listView.expanded || listView.multiSelection ? listView.container.tick : listView.container.chevron
opacity: option.selected ? 1.0 : 0.0
anchors {
verticalCenter: parent.verticalCenter
}
//Our behaviour is only enabled for our expanded list due to flickering bugs in relation to all this other animations running on the expanding version.
Behavior on opacity {
enabled: listView.expanded
Toolkit.UbuntuNumberAnimation {
properties: "opacity"
duration: Toolkit.UbuntuAnimation.FastDuration
}
}
ShaderEffect {
property color colour: assetColour
property Image source: parent
width: source.width
height: source.height
fragmentShader: fragColourShader
}
}
}
}
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