1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
import Qt 4.6
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. the list mode (default), which just shows the picture and title of the recipe.
// 2. the details mode, which also shows the ingredients and method.
Component {
id: recipeDelegate
Item {
id: wrapper
width: list.width
// 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
// A simple rounded rectangle for the background
Rectangle {
id: background
x: 1; y: 2; width: parent.width - 2; height: parent.height - 4
color: "#FEFFEE"; border.color: "#FFBE4F"; 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.
MouseArea {
id: pageMouse
anchors.fill: parent
onClicked: wrapper.state = 'Details';
}
// Layout the page. Picture, title and ingredients at the top, method at the
// bottom. Note that elements that should not be visible in the list
// mode have their opacity set to wrapper.detailsOpacity.
Row {
id: topLayout
x: 10; y: 10; height: recipePic.height; width: parent.width
spacing: 10
Image {
id: recipePic
source: picture; width: 48; height: 48
}
Column {
height: recipePic.height; width: background.width-recipePic.width-20
spacing: 5
Text { id: name; text: title; font.bold: true; font.pointSize: 16 }
Text {
text: "Ingredients"; font.pointSize: 12; font.bold: true
opacity: wrapper.detailsOpacity
}
Text {
text: ingredients; wrap: true; width: parent.width
opacity: wrapper.detailsOpacity
}
}
}
Item {
id: details
x: 10; width: parent.width-20
anchors.top: topLayout.bottom; anchors.topMargin: 10
anchors.bottom: parent.bottom; anchors.bottomMargin: 10
opacity: wrapper.detailsOpacity
Text {
id: methodTitle
text: "Method"; font.pointSize: 12; font.bold: true
anchors.top: parent.top
}
Flickable {
id: flick
anchors.top: methodTitle.bottom; anchors.bottom: parent.bottom
width: parent.width; viewportHeight: methodText.height; clip: true
Text { id: methodText; text: method; wrap: true; width: details.width }
}
Image {
anchors.right: flick.right; anchors.top: flick.top
source: "content/pics/moreUp.png"; opacity: flick.atYBeginning ? 0 : 1
}
Image {
anchors.right: flick.right; anchors.bottom: flick.bottom
source: "content/pics/moreDown.png"; opacity: flick.atYEnd ? 0 : 1
}
}
// A button to close the detailed view, i.e. set the state back to default ('').
MediaButton {
anchors.right: background.right; anchors.rightMargin: 5
y: 10; opacity: wrapper.detailsOpacity
text: "Close"; onClicked: wrapper.state = '';
}
// Make the default height equal the hight of the picture, plus margin.
height: 68
states: State {
name: "Details"
PropertyChanges { target: background; color: "white" }
// Make the picture bigger
PropertyChanges { target: recipePic; width: 128; height: 128 }
// Make details visible
PropertyChanges { target: wrapper; detailsOpacity: 1; x: 0 }
// Make the detailed view fill the entire list area
PropertyChanges { target: wrapper; height: list.height }
// Move the list so that this item is at the top.
PropertyChanges { target: wrapper.ListView.view; explicit: true; viewportY: wrapper.y }
// Disallow flicking while we're in detailed view
PropertyChanges { target: wrapper.ListView.view; interactive: false }
}
transitions: Transition {
// Make the state changes smooth
ParallelAnimation {
ColorAnimation { property: "color"; duration: 500 }
NumberAnimation {
duration: 300; properties: "detailsOpacity,x,viewportY,height,width"
}
}
}
}
}
// The actual list
ListView {
id: list
model: Recipes; delegate: recipeDelegate
anchors.fill: parent; clip: true
}
}
|
