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diff --git a/doc/html/lineedits-example.html b/doc/html/lineedits-example.html new file mode 100644 index 0000000..c9a2a5a --- /dev/null +++ b/doc/html/lineedits-example.html @@ -0,0 +1,394 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/lineedits/lineedits.doc:4 --> +<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 Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#ifndef LINEDITS_H +#define LINEDITS_H + +#include <<a href="qgroupbox-h.html">qgroupbox.h</a>> + +class QLineEdit; +class QComboBox; + +class LineEdits : public <a href="qgroupbox.html">QGroupBox</a> +{ + <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a> + +public: + LineEdits( <a href="qwidget.html">QWidget</a> *parent = 0, const char *name = 0 ); + +protected: + <a href="qlineedit.html">QLineEdit</a> *lined1, *lined2, *lined3, *lined4, *lined5; + <a href="qcombobox.html">QComboBox</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 Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "lineedits.h" + +#include <<a href="qlineedit-h.html">qlineedit.h</a>> +#include <<a href="qcombobox-h.html">qcombobox.h</a>> +#include <<a href="qframe-h.html">qframe.h</a>> +#include <<a href="qvalidator-h.html">qvalidator.h</a>> +#include <<a href="qlabel-h.html">qlabel.h</a>> +#include <<a href="qlayout-h.html">qlayout.h</a>> +#include <<a href="qhbox-h.html">qhbox.h</a>> + +/* + * Constructor + * + * Creates child widgets of the LineEdits widget + */ + +<a name="f219"></a>LineEdits::LineEdits( <a href="qwidget.html">QWidget</a> *parent, const char *name ) + : <a href="qgroupbox.html">QGroupBox</a>( 0, Horizontal, "Line edits", parent, name ) +{ + <a href="qframe.html#setMargin">setMargin</a>( 10 ); + + <a href="qvboxlayout.html">QVBoxLayout</a>* box = new <a href="qvboxlayout.html">QVBoxLayout</a>( <a href="qwidget.html#layout">layout</a>() ); + + <a href="qhboxlayout.html">QHBoxLayout</a> *row1 = new <a href="qhboxlayout.html">QHBoxLayout</a>( box ); +<a name="x173"></a> row1-><a href="qlayout.html#setMargin">setMargin</a>( 5 ); + + // Create a Label + <a href="qlabel.html">QLabel</a>* label = new <a href="qlabel.html">QLabel</a>( "Echo Mode: ", this); +<a name="x169"></a> row1-><a href="qboxlayout.html#addWidget">addWidget</a>( label ); + + // Create a Combobox with three items... + combo1 = new <a href="qcombobox.html">QComboBox</a>( FALSE, this ); + row1-><a href="qboxlayout.html#addWidget">addWidget</a>( combo1 ); +<a name="x171"></a> combo1-><a href="qcombobox.html#insertItem">insertItem</a>( "Normal" ); + combo1-><a href="qcombobox.html#insertItem">insertItem</a>( "Password" ); + combo1-><a href="qcombobox.html#insertItem">insertItem</a>( "No Echo" ); + // ...and connect the activated() SIGNAL with the slotEchoChanged() SLOT to be able + // to react when an item is selected +<a name="x170"></a> <a href="qobject.html#connect">connect</a>( combo1, SIGNAL( <a href="qcombobox.html#activated">activated</a>( int ) ), this, SLOT( slotEchoChanged( int ) ) ); + + // insert the first LineEdit + lined1 = new <a href="qlineedit.html">QLineEdit</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( lined1 ); + + // another widget which is used for layouting + <a href="qhboxlayout.html">QHBoxLayout</a> *row2 = new <a href="qhboxlayout.html">QHBoxLayout</a>( box ); + row2-><a href="qlayout.html#setMargin">setMargin</a>( 5 ); + + // and the second label + label = new <a href="qlabel.html">QLabel</a>( "Validator: ", this ); + row2-><a href="qboxlayout.html#addWidget">addWidget</a>( label ); + + // A second Combobox with again three items... + combo2 = new <a href="qcombobox.html">QComboBox</a>( FALSE, this ); + row2-><a href="qboxlayout.html#addWidget">addWidget</a>( combo2 ); + combo2-><a href="qcombobox.html#insertItem">insertItem</a>( "No Validator" ); + combo2-><a href="qcombobox.html#insertItem">insertItem</a>( "Integer Validator" ); + combo2-><a href="qcombobox.html#insertItem">insertItem</a>( "Double Validator" ); + // ...and again the activated() SIGNAL gets connected with a SLOT + <a href="qobject.html#connect">connect</a>( combo2, SIGNAL( <a href="qcombobox.html#activated">activated</a>( int ) ), this, SLOT( slotValidatorChanged( int ) ) ); + + // and the second LineEdit + lined2 = new <a href="qlineedit.html">QLineEdit</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( lined2 ); + + // yet another widget which is used for layouting + <a href="qhboxlayout.html">QHBoxLayout</a> *row3 = new <a href="qhboxlayout.html">QHBoxLayout</a>( box ); + row3-><a href="qlayout.html#setMargin">setMargin</a>( 5 ); + + // we need a label for this too + label = new <a href="qlabel.html">QLabel</a>( "Alignment: ", this ); + row3-><a href="qboxlayout.html#addWidget">addWidget</a>( label ); + + // A combo box for setting alignment + combo3 = new <a href="qcombobox.html">QComboBox</a>( FALSE, this ); + row3-><a href="qboxlayout.html#addWidget">addWidget</a>( combo3 ); + combo3-><a href="qcombobox.html#insertItem">insertItem</a>( "Left" ); + combo3-><a href="qcombobox.html#insertItem">insertItem</a>( "Centered" ); + combo3-><a href="qcombobox.html#insertItem">insertItem</a>( "Right" ); + // ...and again the activated() SIGNAL gets connected with a SLOT + <a href="qobject.html#connect">connect</a>( combo3, SIGNAL( <a href="qcombobox.html#activated">activated</a>( int ) ), this, SLOT( slotAlignmentChanged( int ) ) ); + + // and the third lineedit + lined3 = new <a href="qlineedit.html">QLineEdit</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( lined3 ); + + // exactly the same for the fourth + <a href="qhboxlayout.html">QHBoxLayout</a> *row4 = new <a href="qhboxlayout.html">QHBoxLayout</a>( box ); + row4-><a href="qlayout.html#setMargin">setMargin</a>( 5 ); + + // we need a label for this too + label = new <a href="qlabel.html">QLabel</a>( "Input mask: ", this ); + row4-><a href="qboxlayout.html#addWidget">addWidget</a>( label ); + + // A combo box for choosing an input mask + combo4 = new <a href="qcombobox.html">QComboBox</a>( FALSE, this ); + row4-><a href="qboxlayout.html#addWidget">addWidget</a>( combo4 ); + combo4-><a href="qcombobox.html#insertItem">insertItem</a>( "No mask" ); + combo4-><a href="qcombobox.html#insertItem">insertItem</a>( "Phone number" ); + combo4-><a href="qcombobox.html#insertItem">insertItem</a>( "ISO date" ); + combo4-><a href="qcombobox.html#insertItem">insertItem</a>( "License key" ); + + // ...this time we use the activated( const <a href="qstring.html">QString</a> & ) signal + <a href="qobject.html#connect">connect</a>( combo4, SIGNAL( <a href="qcombobox.html#activated">activated</a>( int ) ), + this, SLOT( slotInputMaskChanged( int ) ) ); + + // and the fourth lineedit + lined4 = new <a href="qlineedit.html">QLineEdit</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( lined4 ); + + // last widget used for layouting + <a href="qhbox.html">QHBox</a> *row5 = new <a href="qhbox.html">QHBox</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( row5 ); + row5-><a href="qframe.html#setMargin">setMargin</a>( 5 ); + + // last label + (void)new <a href="qlabel.html">QLabel</a>( "Read-Only: ", row5 ); + + // A combo box for setting alignment + combo5 = new <a href="qcombobox.html">QComboBox</a>( FALSE, row5 ); + combo5-><a href="qcombobox.html#insertItem">insertItem</a>( "False" ); + combo5-><a href="qcombobox.html#insertItem">insertItem</a>( "True" ); + // ...and again the activated() SIGNAL gets connected with a SLOT + <a href="qobject.html#connect">connect</a>( combo5, SIGNAL( <a href="qcombobox.html#activated">activated</a>( int ) ), this, SLOT( slotReadOnlyChanged( int ) ) ); + + // and the last lineedit + lined5 = new <a href="qlineedit.html">QLineEdit</a>( this ); + box-><a href="qboxlayout.html#addWidget">addWidget</a>( lined5 ); + + // give the first LineEdit the focus at the beginning +<a name="x181"></a> lined1-><a href="qwidget.html#setFocus">setFocus</a>(); +} + +/* + * 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="qlineedit.html#setEchoMode">setEchoMode</a>( QLineEdit::Normal ); + break; + case 1: + lined1-><a href="qlineedit.html#setEchoMode">setEchoMode</a>( QLineEdit::Password ); + break; + case 2: + lined1-><a href="qlineedit.html#setEchoMode">setEchoMode</a>( QLineEdit::NoEcho ); + break; + } + + lined1-><a href="qwidget.html#setFocus">setFocus</a>(); +} + +/* + * 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="qlineedit.html#setValidator">setValidator</a>( 0 ); + break; + case 1: + lined2-><a href="qlineedit.html#setValidator">setValidator</a>( new <a href="qintvalidator.html">QIntValidator</a>( lined2 ) ); + break; + case 2: + lined2-><a href="qlineedit.html#setValidator">setValidator</a>( new <a href="qdoublevalidator.html">QDoubleValidator</a>( -999.0, 999.0, 2, + lined2 ) ); + break; + } + +<a name="x179"></a> lined2-><a href="qlineedit.html#setText">setText</a>( "" ); + lined2-><a href="qwidget.html#setFocus">setFocus</a>(); +} + + +/* + * 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="qlineedit.html#setAlignment">setAlignment</a>( QLineEdit::AlignLeft ); + break; + case 1: + lined3-><a href="qlineedit.html#setAlignment">setAlignment</a>( QLineEdit::AlignCenter ); + break; + case 2: + lined3-><a href="qlineedit.html#setAlignment">setAlignment</a>( QLineEdit::AlignRight ); + break; + } + + lined3-><a href="qwidget.html#setFocus">setFocus</a>(); +} + +/* + * SLOT slotInputMaskChanged( const <a href="qstring.html">QString</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="qlineedit.html#setInputMask">setInputMask</a>( <a href="qstring.html#QString-null">QString::null</a> ); + break; + case 1: + lined4-><a href="qlineedit.html#setInputMask">setInputMask</a>( "+99 99 99 99 99;_" ); + break; + case 2: + lined4-><a href="qlineedit.html#setInputMask">setInputMask</a>( "0000-00-00" ); + lined4-><a href="qlineedit.html#setText">setText</a>( "00000000" ); +<a name="x175"></a> lined4-><a href="qlineedit.html#setCursorPosition">setCursorPosition</a>( 0 ); + break; + case 3: + lined4-><a href="qlineedit.html#setInputMask">setInputMask</a>( ">AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;#" ); + break; + } + lined4-><a href="qwidget.html#setFocus">setFocus</a>(); +} + +/* + * 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="qlineedit.html#setReadOnly">setReadOnly</a>( FALSE ); + break; + case 1: + lined5-><a href="qlineedit.html#setReadOnly">setReadOnly</a>( TRUE ); + break; + } + + lined5-><a href="qwidget.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 Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "lineedits.h" +#include <<a href="qapplication-h.html">qapplication.h</a>> + +int main( int argc, char **argv ) +{ + <a href="qapplication.html">QApplication</a> a( argc, argv ); + + LineEdits lineedits; + lineedits.<a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Lineedits" ); + a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &lineedits ); + lineedits.<a href="qwidget.html#show">show</a>(); + + return a.<a href="qapplication.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>Qt 3.3.8</div> +</table></div></address></body> +</html> |