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/***************************************************************************
* $Id$
**
* 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.*;
class LineEdits extends QGroupBox
{
protected QLineEdit lined1, lined2, lined3, lined4;
protected QComboBox combo1, combo2, combo3, combo4;
/*
Constructor
*
Creates child widgets of the LineEdits widget
*/
LineEdits( )
{
this(null, null);
}
LineEdits( QWidget parent, String name )
{
super( 0, Horizontal, "Line edits", parent, name );
setMargin( 10 );
QVBoxLayout box = new QVBoxLayout( layout() );
QHBoxLayout row1 = new QHBoxLayout( box );
row1.setMargin( 5 );
// Create a Label
QLabel label = new QLabel( "Echo Mode: ", this);
row1.addWidget( label );
// Create a Combobox with three items...
combo1 = new QComboBox( false, this );
row1.addWidget( combo1 );
combo1.insertItem( "Normal", -1 );
combo1.insertItem( "Password", -1 );
combo1.insertItem( "No Echo", -1 );
// ...and connect the activated() SIGNAL with the slotEchoChanged() SLOT to be able
// to react when an item is selected
connect( combo1, SIGNAL(" activated( int )"), this, SLOT(" slotEchoChanged( int )") );
// insert the first LineEdit
lined1 = new QLineEdit( this );
box.addWidget( lined1 );
// another widget which is used for layouting
QHBoxLayout row2 = new QHBoxLayout( box );
row2.setMargin( 5 );
// and the second label
label = new QLabel( "Validator: ", this );
row2.addWidget( label );
// A second Combobox with again three items...
combo2 = new QComboBox( false, this );
row2.addWidget( combo2 );
combo2.insertItem( "No Validator", -1 );
combo2.insertItem( "Integer Validator", -1 );
combo2.insertItem( "Double Validator", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo2, SIGNAL(" activated( int )"), this, SLOT(" slotValidatorChanged( int )") );
// and the second LineEdit
lined2 = new QLineEdit( this );
box.addWidget( lined2 );
// yet another widget which is used for layouting
QHBoxLayout row3 = new QHBoxLayout( box );
row3.setMargin( 5 );
// we need a label for this too
label = new QLabel( "Alignment: ", this );
row3.addWidget( label );
// A combo box for setting alignment
combo3 = new QComboBox( false, this );
row3.addWidget( combo3 );
combo3.insertItem( "Left", -1 );
combo3.insertItem( "Centered", -1 );
combo3.insertItem( "Right", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo3, SIGNAL(" activated( int )"), this, SLOT(" slotAlignmentChanged( int )") );
// and the third lineedit
lined3 = new QLineEdit( this );
box.addWidget( lined3 );
// last widget used for layouting
QHBox row4 = new QHBox( this );
box.addWidget( row4 );
row4.setMargin( 5 );
// last label
new QLabel( "Read-Only: ", row4 );
// A combo box for setting alignment
combo4 = new QComboBox( false, row4 );
combo4.insertItem( "False", -1 );
combo4.insertItem( "True", -1 );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo4, SIGNAL(" activated( int )"), this, SLOT(" slotReadOnlyChanged( int )") );
// and the last lineedit
lined4 = new QLineEdit( this );
box.addWidget( lined4 );
// give the first LineEdit the focus at the beginning
lined1.setFocus();
}
/*
SLOT slotEchoChanged( int i )
*
i contains the number of the item which the user has been chosen in the
first Combobox. According to this value, we set the Echo-Mode for the
first LineEdit.
*/
void slotEchoChanged( int i )
{
switch ( i ) {
case 0:
lined1.setEchoMode( QLineEdit.Normal );
break;
case 1:
lined1.setEchoMode( QLineEdit.Password );
break;
case 2:
lined1.setEchoMode( QLineEdit.NoEcho );
break;
}
lined1.setFocus();
}
/*
SLOT slotValidatorChanged( int i )
*
i contains the number of the item which the user has been chosen in the
second Combobox. According to this value, we set a validator for the
second LineEdit. A validator checks in a LineEdit each character which
the user enters and accepts it if it is valid, else the character gets
ignored and not inserted into the lineedit.
*/
void slotValidatorChanged( int i )
{
switch ( i ) {
case 0:
lined2.setValidator( null );
break;
case 1:
lined2.setValidator( new QIntValidator( lined2 ) );
break;
case 2:
lined2.setValidator( new QDoubleValidator( -999.0, 999.0, 2,
lined2 ) );
break;
}
lined2.setText( "" );
lined2.setFocus();
}
/*
SLOT slotAlignmentChanged( int i )
*
i contains the number of the item which the user has been chosen in
the third Combobox. According to this value, we set an alignment
third LineEdit.
*/
void slotAlignmentChanged( int i )
{
switch ( i ) {
case 0:
lined3.setAlignment( QLineEdit.AlignLeft );
break;
case 1:
lined3.setAlignment( QLineEdit.AlignCenter );
break;
case 2:
lined3.setAlignment( QLineEdit.AlignRight );
break;
}
lined3.setFocus();
}
/*
SLOT slotReadOnlyChanged( int i )
*
i contains the number of the item which the user has been chosen in
the fourth Combobox. According to this value, we toggle read-only.
*/
void slotReadOnlyChanged( int i )
{
switch ( i ) {
case 0:
lined4.setReadOnly( false );
break;
case 1:
lined4.setReadOnly( true );
break;
}
lined4.setFocus();
}
}
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