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tqt3/examples/lineedits/lineedits.cpp

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/****************************************************************************
**
** 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 "lineedits.h"
#include <ntqlineedit.h>
#include <ntqcombobox.h>
#include <ntqframe.h>
#include <ntqvalidator.h>
#include <ntqlabel.h>
#include <ntqlayout.h>
#include <ntqhbox.h>
/*
* Constructor
*
* Creates child widgets of the LineEdits widget
*/
LineEdits::LineEdits( TQWidget *parent, const char *name )
: TQGroupBox( 0, Horizontal, "Line edits", parent, name )
{
setMargin( 10 );
TQVBoxLayout* box = new TQVBoxLayout( layout() );
TQHBoxLayout *row1 = new TQHBoxLayout( box );
row1->setMargin( 5 );
// Create a Label
TQLabel* label = new TQLabel( "Echo Mode: ", this);
row1->addWidget( label );
// Create a Combobox with three items...
combo1 = new TQComboBox( FALSE, this );
row1->addWidget( combo1 );
combo1->insertItem( "Normal" );
combo1->insertItem( "Password" );
combo1->insertItem( "No Echo" );
// ...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 TQLineEdit( this );
box->addWidget( lined1 );
// another widget which is used for layouting
TQHBoxLayout *row2 = new TQHBoxLayout( box );
row2->setMargin( 5 );
// and the second label
label = new TQLabel( "Validator: ", this );
row2->addWidget( label );
// A second Combobox with again three items...
combo2 = new TQComboBox( FALSE, this );
row2->addWidget( combo2 );
combo2->insertItem( "No Validator" );
combo2->insertItem( "Integer Validator" );
combo2->insertItem( "Double Validator" );
// ...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 TQLineEdit( this );
box->addWidget( lined2 );
// yet another widget which is used for layouting
TQHBoxLayout *row3 = new TQHBoxLayout( box );
row3->setMargin( 5 );
// we need a label for this too
label = new TQLabel( "Alignment: ", this );
row3->addWidget( label );
// A combo box for setting alignment
combo3 = new TQComboBox( FALSE, this );
row3->addWidget( combo3 );
combo3->insertItem( "Left" );
combo3->insertItem( "Centered" );
combo3->insertItem( "Right" );
// ...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 TQLineEdit( this );
box->addWidget( lined3 );
// exactly the same for the fourth
TQHBoxLayout *row4 = new TQHBoxLayout( box );
row4->setMargin( 5 );
// we need a label for this too
label = new TQLabel( "Input mask: ", this );
row4->addWidget( label );
// A combo box for choosing an input mask
combo4 = new TQComboBox( FALSE, this );
row4->addWidget( combo4 );
combo4->insertItem( "No mask" );
combo4->insertItem( "Phone number" );
combo4->insertItem( "ISO date" );
combo4->insertItem( "License key" );
// ...this time we use the activated( const TQString & ) signal
connect( combo4, SIGNAL( activated( int ) ),
this, SLOT( slotInputMaskChanged( int ) ) );
// and the fourth lineedit
lined4 = new TQLineEdit( this );
box->addWidget( lined4 );
// last widget used for layouting
TQHBox *row5 = new TQHBox( this );
box->addWidget( row5 );
row5->setMargin( 5 );
// last label
(void)new TQLabel( "Read-Only: ", row5 );
// A combo box for setting alignment
combo5 = new TQComboBox( FALSE, row5 );
combo5->insertItem( "False" );
combo5->insertItem( "True" );
// ...and again the activated() SIGNAL gets connected with a SLOT
connect( combo5, SIGNAL( activated( int ) ), this, SLOT( slotReadOnlyChanged( int ) ) );
// and the last lineedit
lined5 = new TQLineEdit( this );
box->addWidget( lined5 );
// 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 LineEdits::slotEchoChanged( int i )
{
switch ( i ) {
case 0:
lined1->setEchoMode( TQLineEdit::Normal );
break;
case 1:
lined1->setEchoMode( TQLineEdit::Password );
break;
case 2:
lined1->setEchoMode( TQLineEdit::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 LineEdits::slotValidatorChanged( int i )
{
switch ( i ) {
case 0:
lined2->setValidator( 0 );
break;
case 1:
lined2->setValidator( new TQIntValidator( lined2 ) );
break;
case 2:
lined2->setValidator( new TQDoubleValidator( -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 LineEdits::slotAlignmentChanged( int i )
{
switch ( i ) {
case 0:
lined3->setAlignment( TQLineEdit::AlignLeft );
break;
case 1:
lined3->setAlignment( TQLineEdit::AlignCenter );
break;
case 2:
lined3->setAlignment( TQLineEdit::AlignRight );
break;
}
lined3->setFocus();
}
/*
* SLOT slotInputMaskChanged( const TQString &mask )
*
* i contains the number of the item which the user has been chosen in
* the third Combobox. According to this value, we set an input mask on
* third LineEdit.
*/
void LineEdits::slotInputMaskChanged( int i )
{
switch( i ) {
case 0:
lined4->setInputMask( TQString::null );
break;
case 1:
lined4->setInputMask( "+99 99 99 99 99;_" );
break;
case 2:
lined4->setInputMask( "0000-00-00" );
lined4->setText( "00000000" );
lined4->setCursorPosition( 0 );
break;
case 3:
lined4->setInputMask( ">AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;#" );
break;
}
lined4->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 LineEdits::slotReadOnlyChanged( int i )
{
switch ( i ) {
case 0:
lined5->setReadOnly( FALSE );
break;
case 1:
lined5->setReadOnly( TRUE );
break;
}
lined5->setFocus();
}