You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
394 lines
16 KiB
394 lines
16 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>Line Edits</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Line Edits</h1>
|
|
|
|
|
|
<p>
|
|
This example shows how to work with single lineedit widgets, and
|
|
how to use different echo modes and validators.
|
|
<p> <hr>
|
|
<p> Header file:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/lineedits.h 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 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.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#ifndef LINEDITS_H
|
|
#define LINEDITS_H
|
|
|
|
#include <<a href="tqgroupbox-h.html">tqgroupbox.h</a>>
|
|
|
|
class TQLineEdit;
|
|
class TQComboBox;
|
|
|
|
class LineEdits : public <a href="tqgroupbox.html">TQGroupBox</a>
|
|
{
|
|
<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
|
|
|
|
public:
|
|
LineEdits( <a href="tqwidget.html">TQWidget</a> *parent = 0, const char *name = 0 );
|
|
|
|
protected:
|
|
<a href="tqlineedit.html">TQLineEdit</a> *lined1, *lined2, *lined3, *lined4, *lined5;
|
|
<a href="tqcombobox.html">TQComboBox</a> *combo1, *combo2, *combo3, *combo4, *combo5;
|
|
|
|
protected slots:
|
|
void slotEchoChanged( int );
|
|
void slotValidatorChanged( int );
|
|
void slotAlignmentChanged( int );
|
|
void slotInputMaskChanged( int );
|
|
void slotReadOnlyChanged( int );
|
|
};
|
|
|
|
#endif
|
|
</pre>
|
|
|
|
<p> <hr>
|
|
<p> Implementation:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/lineedits.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 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 <<a href="tqlineedit-h.html">tqlineedit.h</a>>
|
|
#include <<a href="tqcombobox-h.html">tqcombobox.h</a>>
|
|
#include <<a href="tqframe-h.html">tqframe.h</a>>
|
|
#include <<a href="tqvalidator-h.html">tqvalidator.h</a>>
|
|
#include <<a href="tqlabel-h.html">tqlabel.h</a>>
|
|
#include <<a href="tqlayout-h.html">tqlayout.h</a>>
|
|
#include <<a href="tqhbox-h.html">tqhbox.h</a>>
|
|
|
|
/*
|
|
* Constructor
|
|
*
|
|
* Creates child widgets of the LineEdits widget
|
|
*/
|
|
|
|
<a name="f219"></a>LineEdits::LineEdits( <a href="tqwidget.html">TQWidget</a> *parent, const char *name )
|
|
: <a href="tqgroupbox.html">TQGroupBox</a>( 0, Horizontal, "Line edits", parent, name )
|
|
{
|
|
<a href="tqframe.html#setMargin">setMargin</a>( 10 );
|
|
|
|
<a href="tqvboxlayout.html">TQVBoxLayout</a>* box = new <a href="tqvboxlayout.html">TQVBoxLayout</a>( <a href="tqwidget.html#layout">layout</a>() );
|
|
|
|
<a href="tqhboxlayout.html">TQHBoxLayout</a> *row1 = new <a href="tqhboxlayout.html">TQHBoxLayout</a>( box );
|
|
<a name="x173"></a> row1-><a href="tqlayout.html#setMargin">setMargin</a>( 5 );
|
|
|
|
// Create a Label
|
|
<a href="tqlabel.html">TQLabel</a>* label = new <a href="tqlabel.html">TQLabel</a>( "Echo Mode: ", this);
|
|
<a name="x169"></a> row1-><a href="tqboxlayout.html#addWidget">addWidget</a>( label );
|
|
|
|
// Create a Combobox with three items...
|
|
combo1 = new <a href="tqcombobox.html">TQComboBox</a>( FALSE, this );
|
|
row1-><a href="tqboxlayout.html#addWidget">addWidget</a>( combo1 );
|
|
<a name="x171"></a> combo1-><a href="tqcombobox.html#insertItem">insertItem</a>( "Normal" );
|
|
combo1-><a href="tqcombobox.html#insertItem">insertItem</a>( "Password" );
|
|
combo1-><a href="tqcombobox.html#insertItem">insertItem</a>( "No Echo" );
|
|
// ...and connect the activated() TQ_SIGNAL with the slotEchoChanged() TQ_SLOT to be able
|
|
// to react when an item is selected
|
|
<a name="x170"></a> <a href="tqobject.html#connect">connect</a>( combo1, TQ_SIGNAL( <a href="tqcombobox.html#activated">activated</a>( int ) ), this, TQ_SLOT( slotEchoChanged( int ) ) );
|
|
|
|
// insert the first LineEdit
|
|
lined1 = new <a href="tqlineedit.html">TQLineEdit</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( lined1 );
|
|
|
|
// another widget which is used for layouting
|
|
<a href="tqhboxlayout.html">TQHBoxLayout</a> *row2 = new <a href="tqhboxlayout.html">TQHBoxLayout</a>( box );
|
|
row2-><a href="tqlayout.html#setMargin">setMargin</a>( 5 );
|
|
|
|
// and the second label
|
|
label = new <a href="tqlabel.html">TQLabel</a>( "Validator: ", this );
|
|
row2-><a href="tqboxlayout.html#addWidget">addWidget</a>( label );
|
|
|
|
// A second Combobox with again three items...
|
|
combo2 = new <a href="tqcombobox.html">TQComboBox</a>( FALSE, this );
|
|
row2-><a href="tqboxlayout.html#addWidget">addWidget</a>( combo2 );
|
|
combo2-><a href="tqcombobox.html#insertItem">insertItem</a>( "No Validator" );
|
|
combo2-><a href="tqcombobox.html#insertItem">insertItem</a>( "Integer Validator" );
|
|
combo2-><a href="tqcombobox.html#insertItem">insertItem</a>( "Double Validator" );
|
|
// ...and again the activated() TQ_SIGNAL gets connected with a TQ_SLOT
|
|
<a href="tqobject.html#connect">connect</a>( combo2, TQ_SIGNAL( <a href="tqcombobox.html#activated">activated</a>( int ) ), this, TQ_SLOT( slotValidatorChanged( int ) ) );
|
|
|
|
// and the second LineEdit
|
|
lined2 = new <a href="tqlineedit.html">TQLineEdit</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( lined2 );
|
|
|
|
// yet another widget which is used for layouting
|
|
<a href="tqhboxlayout.html">TQHBoxLayout</a> *row3 = new <a href="tqhboxlayout.html">TQHBoxLayout</a>( box );
|
|
row3-><a href="tqlayout.html#setMargin">setMargin</a>( 5 );
|
|
|
|
// we need a label for this too
|
|
label = new <a href="tqlabel.html">TQLabel</a>( "Alignment: ", this );
|
|
row3-><a href="tqboxlayout.html#addWidget">addWidget</a>( label );
|
|
|
|
// A combo box for setting alignment
|
|
combo3 = new <a href="tqcombobox.html">TQComboBox</a>( FALSE, this );
|
|
row3-><a href="tqboxlayout.html#addWidget">addWidget</a>( combo3 );
|
|
combo3-><a href="tqcombobox.html#insertItem">insertItem</a>( "Left" );
|
|
combo3-><a href="tqcombobox.html#insertItem">insertItem</a>( "Centered" );
|
|
combo3-><a href="tqcombobox.html#insertItem">insertItem</a>( "Right" );
|
|
// ...and again the activated() TQ_SIGNAL gets connected with a TQ_SLOT
|
|
<a href="tqobject.html#connect">connect</a>( combo3, TQ_SIGNAL( <a href="tqcombobox.html#activated">activated</a>( int ) ), this, TQ_SLOT( slotAlignmentChanged( int ) ) );
|
|
|
|
// and the third lineedit
|
|
lined3 = new <a href="tqlineedit.html">TQLineEdit</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( lined3 );
|
|
|
|
// exactly the same for the fourth
|
|
<a href="tqhboxlayout.html">TQHBoxLayout</a> *row4 = new <a href="tqhboxlayout.html">TQHBoxLayout</a>( box );
|
|
row4-><a href="tqlayout.html#setMargin">setMargin</a>( 5 );
|
|
|
|
// we need a label for this too
|
|
label = new <a href="tqlabel.html">TQLabel</a>( "Input mask: ", this );
|
|
row4-><a href="tqboxlayout.html#addWidget">addWidget</a>( label );
|
|
|
|
// A combo box for choosing an input mask
|
|
combo4 = new <a href="tqcombobox.html">TQComboBox</a>( FALSE, this );
|
|
row4-><a href="tqboxlayout.html#addWidget">addWidget</a>( combo4 );
|
|
combo4-><a href="tqcombobox.html#insertItem">insertItem</a>( "No mask" );
|
|
combo4-><a href="tqcombobox.html#insertItem">insertItem</a>( "Phone number" );
|
|
combo4-><a href="tqcombobox.html#insertItem">insertItem</a>( "ISO date" );
|
|
combo4-><a href="tqcombobox.html#insertItem">insertItem</a>( "License key" );
|
|
|
|
// ...this time we use the activated( const <a href="tqstring.html">TQString</a> & ) signal
|
|
<a href="tqobject.html#connect">connect</a>( combo4, TQ_SIGNAL( <a href="tqcombobox.html#activated">activated</a>( int ) ),
|
|
this, TQ_SLOT( slotInputMaskChanged( int ) ) );
|
|
|
|
// and the fourth lineedit
|
|
lined4 = new <a href="tqlineedit.html">TQLineEdit</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( lined4 );
|
|
|
|
// last widget used for layouting
|
|
<a href="tqhbox.html">TQHBox</a> *row5 = new <a href="tqhbox.html">TQHBox</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( row5 );
|
|
row5-><a href="tqframe.html#setMargin">setMargin</a>( 5 );
|
|
|
|
// last label
|
|
(void)new <a href="tqlabel.html">TQLabel</a>( "Read-Only: ", row5 );
|
|
|
|
// A combo box for setting alignment
|
|
combo5 = new <a href="tqcombobox.html">TQComboBox</a>( FALSE, row5 );
|
|
combo5-><a href="tqcombobox.html#insertItem">insertItem</a>( "False" );
|
|
combo5-><a href="tqcombobox.html#insertItem">insertItem</a>( "True" );
|
|
// ...and again the activated() TQ_SIGNAL gets connected with a TQ_SLOT
|
|
<a href="tqobject.html#connect">connect</a>( combo5, TQ_SIGNAL( <a href="tqcombobox.html#activated">activated</a>( int ) ), this, TQ_SLOT( slotReadOnlyChanged( int ) ) );
|
|
|
|
// and the last lineedit
|
|
lined5 = new <a href="tqlineedit.html">TQLineEdit</a>( this );
|
|
box-><a href="tqboxlayout.html#addWidget">addWidget</a>( lined5 );
|
|
|
|
// give the first LineEdit the focus at the beginning
|
|
<a name="x181"></a> lined1-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
/*
|
|
* TQ_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 <a name="f220"></a>LineEdits::slotEchoChanged( int i )
|
|
{
|
|
switch ( i ) {
|
|
case 0:
|
|
<a name="x176"></a> lined1-><a href="tqlineedit.html#setEchoMode">setEchoMode</a>( TQLineEdit::Normal );
|
|
break;
|
|
case 1:
|
|
lined1-><a href="tqlineedit.html#setEchoMode">setEchoMode</a>( TQLineEdit::Password );
|
|
break;
|
|
case 2:
|
|
lined1-><a href="tqlineedit.html#setEchoMode">setEchoMode</a>( TQLineEdit::NoEcho );
|
|
break;
|
|
}
|
|
|
|
lined1-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
/*
|
|
* TQ_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 <a name="f221"></a>LineEdits::slotValidatorChanged( int i )
|
|
{
|
|
switch ( i ) {
|
|
case 0:
|
|
<a name="x180"></a> lined2-><a href="tqlineedit.html#setValidator">setValidator</a>( 0 );
|
|
break;
|
|
case 1:
|
|
lined2-><a href="tqlineedit.html#setValidator">setValidator</a>( new <a href="tqintvalidator.html">TQIntValidator</a>( lined2 ) );
|
|
break;
|
|
case 2:
|
|
lined2-><a href="tqlineedit.html#setValidator">setValidator</a>( new <a href="tqdoublevalidator.html">TQDoubleValidator</a>( -999.0, 999.0, 2,
|
|
lined2 ) );
|
|
break;
|
|
}
|
|
|
|
<a name="x179"></a> lined2-><a href="tqlineedit.html#setText">setText</a>( "" );
|
|
lined2-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
|
|
/*
|
|
* TQ_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 <a name="f222"></a>LineEdits::slotAlignmentChanged( int i )
|
|
{
|
|
switch ( i ) {
|
|
case 0:
|
|
<a name="x174"></a> lined3-><a href="tqlineedit.html#setAlignment">setAlignment</a>( TQLineEdit::AlignLeft );
|
|
break;
|
|
case 1:
|
|
lined3-><a href="tqlineedit.html#setAlignment">setAlignment</a>( TQLineEdit::AlignCenter );
|
|
break;
|
|
case 2:
|
|
lined3-><a href="tqlineedit.html#setAlignment">setAlignment</a>( TQLineEdit::AlignRight );
|
|
break;
|
|
}
|
|
|
|
lined3-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
/*
|
|
* TQ_SLOT slotInputMaskChanged( const <a href="tqstring.html">TQString</a> &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 <a name="f223"></a>LineEdits::slotInputMaskChanged( int i )
|
|
{
|
|
switch( i ) {
|
|
case 0:
|
|
<a name="x177"></a> lined4-><a href="tqlineedit.html#setInputMask">setInputMask</a>( <a href="tqstring.html#TQString-null">TQString::null</a> );
|
|
break;
|
|
case 1:
|
|
lined4-><a href="tqlineedit.html#setInputMask">setInputMask</a>( "+99 99 99 99 99;_" );
|
|
break;
|
|
case 2:
|
|
lined4-><a href="tqlineedit.html#setInputMask">setInputMask</a>( "0000-00-00" );
|
|
lined4-><a href="tqlineedit.html#setText">setText</a>( "00000000" );
|
|
<a name="x175"></a> lined4-><a href="tqlineedit.html#setCursorPosition">setCursorPosition</a>( 0 );
|
|
break;
|
|
case 3:
|
|
lined4-><a href="tqlineedit.html#setInputMask">setInputMask</a>( ">AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;#" );
|
|
break;
|
|
}
|
|
lined4-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
/*
|
|
* TQ_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 <a name="f224"></a>LineEdits::slotReadOnlyChanged( int i )
|
|
{
|
|
switch ( i ) {
|
|
case 0:
|
|
<a name="x178"></a> lined5-><a href="tqlineedit.html#setReadOnly">setReadOnly</a>( FALSE );
|
|
break;
|
|
case 1:
|
|
lined5-><a href="tqlineedit.html#setReadOnly">setReadOnly</a>( TRUE );
|
|
break;
|
|
}
|
|
|
|
lined5-><a href="tqwidget.html#setFocus">setFocus</a>();
|
|
}
|
|
|
|
</pre>
|
|
|
|
<p> <hr>
|
|
<p> Main:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 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 <<a href="tqapplication-h.html">tqapplication.h</a>>
|
|
|
|
int main( int argc, char **argv )
|
|
{
|
|
<a href="tqapplication.html">TQApplication</a> a( argc, argv );
|
|
|
|
LineEdits lineedits;
|
|
lineedits.<a href="tqwidget.html#setCaption">setCaption</a>( "TQt Example - Lineedits" );
|
|
a.<a href="tqapplication.html#setMainWidget">setMainWidget</a>( &lineedits );
|
|
lineedits.<a href="tqwidget.html#show">show</a>();
|
|
|
|
return a.<a href="tqapplication.html#exec">exec</a>();
|
|
}
|
|
</pre>
|
|
|
|
<p>See also <a href="examples.html">Examples</a>.
|
|
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|