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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "listbox.h"
#include <tqlabel.h>
#include <tqradiobutton.h>
#include <tqcheckbox.h>
#include <tqspinbox.h>
#include <tqlistbox.h>
#include <tqbuttongroup.h>
#include <tqlayout.h>
#include <tqpushbutton.h>
ListBoxDemo::ListBoxDemo()
: TQWidget( 0, 0 )
{
TQGridLayout * g = new TQGridLayout( this, 2, 2, 6 );
g->addWidget( new TQLabel( "<b>Configuration:</b>", this ), 0, 0 );
g->addWidget( new TQLabel( "<b>Result:</b>", this ), 0, 1 );
l = new TQListBox( this );
g->addWidget( l, 1, 1 );
l->setFocusPolicy( TQWidget::StrongFocus );
TQVBoxLayout * v = new TQVBoxLayout;
g->addLayout( v, 1, 0 );
TQRadioButton * b;
bg = new TQButtonGroup( 0 );
b = new TQRadioButton( "Fixed number of columns,\n"
"as many rows as needed.",
this );
bg->insert( b );
v->addWidget( b );
b->setChecked( TRUE );
connect( b, TQ_SIGNAL(clicked()), this, TQ_SLOT(setNumCols()) );
TQHBoxLayout * h = new TQHBoxLayout;
v->addLayout( h );
h->addSpacing( 30 );
h->addSpacing( 100 );
h->addWidget( new TQLabel( "Columns:", this ) );
columns = new TQSpinBox( this );
h->addWidget( columns );
v->addSpacing( 12 );
b = new TQRadioButton( "As many columns as fit on-screen,\n"
"as many rows as needed.",
this );
bg->insert( b );
v->addWidget( b );
connect( b, TQ_SIGNAL(clicked()), this, TQ_SLOT(setColsByWidth()) );
v->addSpacing( 12 );
b = new TQRadioButton( "Fixed number of rows,\n"
"as many columns as needed.",
this );
bg->insert( b );
v->addWidget( b );
connect( b, TQ_SIGNAL(clicked()), this, TQ_SLOT(setNumRows()) );
h = new TQHBoxLayout;
v->addLayout( h );
h->addSpacing( 30 );
h->addSpacing( 100 );
h->addWidget( new TQLabel( "Rows:", this ) );
rows = new TQSpinBox( this );
rows->setEnabled( FALSE );
h->addWidget( rows );
v->addSpacing( 12 );
b = new TQRadioButton( "As many rows as fit on-screen,\n"
"as many columns as needed.",
this );
bg->insert( b );
v->addWidget( b );
connect( b, TQ_SIGNAL(clicked()), this, TQ_SLOT(setRowsByHeight()) );
v->addSpacing( 12 );
TQCheckBox * cb = new TQCheckBox( "Variable-height rows", this );
cb->setChecked( TRUE );
connect( cb, TQ_SIGNAL(toggled(bool)), this, TQ_SLOT(setVariableHeight(bool)) );
v->addWidget( cb );
v->addSpacing( 6 );
cb = new TQCheckBox( "Variable-width columns", this );
connect( cb, TQ_SIGNAL(toggled(bool)), this, TQ_SLOT(setVariableWidth(bool)) );
v->addWidget( cb );
cb = new TQCheckBox( "Extended-Selection", this );
connect( cb, TQ_SIGNAL(toggled(bool)), this, TQ_SLOT(setMultiSelection(bool)) );
v->addWidget( cb );
TQPushButton *pb = new TQPushButton( "Sort ascending", this );
connect( pb, TQ_SIGNAL( clicked() ), this, TQ_SLOT( sortAscending() ) );
v->addWidget( pb );
pb = new TQPushButton( "Sort descending", this );
connect( pb, TQ_SIGNAL( clicked() ), this, TQ_SLOT( sortDescending() ) );
v->addWidget( pb );
v->addStretch( 100 );
int i = 0;
while( ++i <= 2560 )
l->insertItem( TQString::fromLatin1( "Item " ) + TQString::number( i ),
i );
columns->setRange( 1, 256 );
columns->setValue( 1 );
rows->setRange( 1, 256 );
rows->setValue( 256 );
connect( columns, TQ_SIGNAL(valueChanged(int)), this, TQ_SLOT(setNumCols()) );
connect( rows, TQ_SIGNAL(valueChanged(int)), this, TQ_SLOT(setNumRows()) );
}
ListBoxDemo::~ListBoxDemo()
{
delete bg;
}
void ListBoxDemo::setNumRows()
{
columns->setEnabled( FALSE );
rows->setEnabled( TRUE );
l->setRowMode( rows->value() );
}
void ListBoxDemo::setNumCols()
{
columns->setEnabled( TRUE );
rows->setEnabled( FALSE );
l->setColumnMode( columns->value() );
}
void ListBoxDemo::setRowsByHeight()
{
columns->setEnabled( FALSE );
rows->setEnabled( FALSE );
l->setRowMode( TQListBox::FitToHeight );
}
void ListBoxDemo::setColsByWidth()
{
columns->setEnabled( FALSE );
rows->setEnabled( FALSE );
l->setColumnMode( TQListBox::FitToWidth );
}
void ListBoxDemo::setVariableWidth( bool b )
{
l->setVariableWidth( b );
}
void ListBoxDemo::setVariableHeight( bool b )
{
l->setVariableHeight( b );
}
void ListBoxDemo::setMultiSelection( bool b )
{
l->clearSelection();
l->setSelectionMode( b ? TQListBox::Extended : TQListBox::Single );
}
void ListBoxDemo::sortAscending()
{
l->sort( TRUE );
}
void ListBoxDemo::sortDescending()
{
l->sort( FALSE );
}
|
