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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/***************************************************************************
* $Id$
**
* Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
* This file is part of an example program for Qt. This example
* program may be used, distributed and modified without limitation.
**
****************************************************************************/
import org.kde.qt.*;
import java.util.*;
class CheckLists extends QWidget
{
protected QListView lv1, lv2;
protected QLabel label;
/*
Constructor
*
Create all child widgets of the CheckList Widget
*/
CheckLists( )
{
this(null, null);
}
CheckLists( QWidget parent, String name )
{
super( parent, name );
QHBoxLayout lay = new QHBoxLayout( this );
lay.setMargin( 5 );
// create a widget which layouts its childs in a column
QVBoxLayout vbox1 = new QVBoxLayout( lay );
vbox1.setMargin( 5 );
// First child: a Label
vbox1.addWidget( new QLabel( "Check some items!", this ) );
// Second child: the ListView
lv1 = new QListView( this );
vbox1.addWidget( lv1 );
lv1.addColumn( "Items" );
lv1.setRootIsDecorated( true );
// create a list with 4 ListViewItems which will be parent items of other ListViewItems
ArrayList parentList = new ArrayList();
parentList.add( new QListViewItem( lv1, "Parent Item 1" ) );
parentList.add( new QListViewItem( lv1, "Parent Item 2" ) );
parentList.add( new QListViewItem( lv1, "Parent Item 3" ) );
parentList.add( new QListViewItem( lv1, "Parent Item 4" ) );
QListViewItem item = null;
int num = 1;
// go through the list of parent items...
for ( Iterator it = parentList.iterator(); it.hasNext(); num++ ) {
item = (QListViewItem) it.next();
item.setOpen( true );
// ...and create 5 checkable child ListViewItems for each parent item
for ( int i = 1; i <= 5; i++ )
new QCheckListItem( item, i + ". Child of Parent " + num, QCheckListItem.CheckBox );
}
// Create another widget for layouting
QVBoxLayout tmp = new QVBoxLayout( lay );
tmp.setMargin( 5 );
// create a pushbutton
QPushButton copy1 = new QPushButton( " -> ", this );
tmp.addWidget( copy1 );
copy1.setMaximumWidth( copy1.sizeHint().width() );
// connect the SIGNAL clicked() of the pushbutton with the SLOT copy1to2()
connect( copy1, SIGNAL(" clicked()"), this, SLOT(" copy1to2()") );
// another widget for layouting
QVBoxLayout vbox2 = new QVBoxLayout( lay );
vbox2.setMargin( 5 );
// and another label
vbox2.addWidget( new QLabel( "Check one item!", this ) );
// create the second listview
lv2 = new QListView( this );
vbox2.addWidget( lv2 );
lv2.addColumn( "Items" );
lv2.setRootIsDecorated( true );
// another widget needed for layouting only
tmp = new QVBoxLayout( lay );
tmp.setMargin( 5 );
// create another pushbutton...
QPushButton copy2 = new QPushButton( " -> ", this );
lay.addWidget( copy2 );
copy2.setMaximumWidth( copy2.sizeHint().width() );
// ...and connect its clicked() SIGNAL to the copy2to3() SLOT
connect( copy2, SIGNAL(" clicked()"), this, SLOT(" copy2to3()") );
tmp = new QVBoxLayout( lay );
tmp.setMargin( 5 );
// and create a label which will be at the right of the window
label = new QLabel( "No Item yet...", this );
tmp.addWidget( label );
}
/*
SLOT copy1to2()
*
Copies all checked ListViewItems from the first ListView to
the second one, and inserts them as Radio-ListViewItem.
*/
public void copy1to2()
{
// create an iterator which operates on the first ListView
Iterator it = lv1.itemList().iterator();
lv2.clear();
// Insert first a controller Item into the second ListView. Always if Radio-ListViewItems
// are inserted into a Listview, the parent item of these MUST be a controller Item!
QCheckListItem item = new QCheckListItem( lv2, "Controller", QCheckListItem.Controller );
item.setOpen( true );
// iterate through the first ListView...
while ( it.hasNext() ) {
QListViewItem current = (QListViewItem) it.next();
// ...check state of childs, and...
if ( current.parent() != null )
// ...if the item is checked...
if ( ( (QCheckListItem) current ).isOn() )
// ...insert a Radio-ListViewItem with the same text into the second ListView
new QCheckListItem( item, current.text( 0 ), QCheckListItem.RadioButton );
}
if ( item.firstChild() != null )
( ( QCheckListItem )item.firstChild() ).setOn( true );
}
/*
SLOT copy2to3()
*
Copies the checked item of the second ListView into the
Label at the right.
*/
public void copy2to3()
{
// create an iterator which operates on the second ListView
Iterator it = lv2.itemList().iterator();
label.setText( "No Item checked" );
// iterate through the second ListView...
while ( it.hasNext() ) {
QListViewItem current = (QListViewItem) it.next();
// ...check state of childs, and...
if ( current.parent() != null )
// ...if the item is checked...
if ( ( (QCheckListItem) current ).isOn() )
// ...set the text of the item to the label
label.setText( current.text( 0 ) );
}
}
}
|
