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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import "content"
// This example illustrates expanding a list item to show a more detailed view.
Rectangle {
id: page
width: 400; height: 240
color: "black"
// Delegate for the recipes. This delegate has two modes:
// 1. List mode (default), which just shows the picture and title of the recipe.
// 2. Details mode, which also shows the ingredients and method.
Component {
id: recipeDelegate
//! [0]
Item {
id: recipe
required property string title
required property string picture
required property string ingredients
required property string method
// Create a property to contain the visibility of the details.
// We can bind multiple element's opacity to this one property,
// rather than having a "PropertyChanges" line for each element we
// want to fade.
property real detailsOpacity : 0
//! [0]
width: listView.width
height: 70
// A simple rounded rectangle for the background
Rectangle {
id: background
x: 2; y: 2; width: parent.width - x*2; height: parent.height - y*2
color: "ivory"
border.color: "orange"
radius: 5
}
// This mouse region covers the entire delegate.
// When clicked it changes mode to 'Details'. If we are already
// in Details mode, then no change will happen.
//! [1]
MouseArea {
anchors.fill: parent
onClicked: recipe.state = 'Details';
}
// Lay out the page: picture, title and ingredients at the top, and method at the
// bottom. Note that elements that should not be visible in the list
// mode have their opacity set to recipe.detailsOpacity.
Row {
id: topLayout
x: 10; y: 10; height: recipeImage.height; width: parent.width
spacing: 10
Image {
id: recipeImage
width: 50; height: 50
source: recipe.picture
}
//! [1]
Column {
width: background.width - recipeImage.width - 20; height: recipeImage.height
spacing: 5
Text {
text: recipe.title
font.bold: true; font.pointSize: 16
}
SmallText {
text: "Ingredients"
font.bold: true
opacity: recipe.detailsOpacity
}
SmallText {
text: recipe.ingredients
wrapMode: Text.WordWrap
width: parent.width
opacity: recipe.detailsOpacity
}
}
}
//! [2]
Item {
id: details
x: 10; width: parent.width - 20
anchors { top: topLayout.bottom; topMargin: 10; bottom: parent.bottom; bottomMargin: 10 }
opacity: recipe.detailsOpacity
//! [2]
SmallText {
id: methodTitle
anchors.top: parent.top
text: "Method"
font.pointSize: 12; font.bold: true
}
Flickable {
id: flick
width: parent.width
anchors { top: methodTitle.bottom; bottom: parent.bottom }
contentHeight: methodText.height
clip: true
Text {
id: methodText
text: recipe.method
wrapMode: Text.WordWrap
width: details.width
}
}
Image {
anchors { right: flick.right; top: flick.top }
source: "content/pics/moreUp.png"
opacity: flick.atYBeginning ? 0 : 1
}
Image {
anchors { right: flick.right; bottom: flick.bottom }
source: "content/pics/moreDown.png"
opacity: flick.atYEnd ? 0 : 1
}
//! [3]
}
// A button to close the detailed view, i.e. set the state back to default ('').
TextButton {
y: 10
anchors { right: background.right; rightMargin: 10 }
opacity: recipe.detailsOpacity
text: "Close"
onClicked: recipe.state = '';
}
states: State {
name: "Details"
PropertyChanges {
background.color: "white"
recipeImage {
// Make picture bigger
width: 130
height: 130
}
recipe {
// Make details visible
detailsOpacity: 1
x: 0
// Fill the entire list area with the detailed view
height: listView.height
}
}
// Move the list so that this item is at the top.
PropertyChanges {
recipe.ListView.view.contentY: recipe.y
explicit: true;
}
// Disallow flicking while we're in detailed view
PropertyChanges {
recipe.ListView.view.interactive: false
}
}
transitions: Transition {
// Make the state changes smooth
ParallelAnimation {
ColorAnimation { property: "color"; duration: 500 }
NumberAnimation { duration: 300; properties: "detailsOpacity,x,contentY,height,width" }
}
}
}
//! [3]
}
// The actual list
ListView {
id: listView
anchors.fill: parent
model: RecipesModel {}
delegate: recipeDelegate
}
}
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