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/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#include "pmdeclareedit.h"
#include "pmdeclare.h"
#include "pmpart.h"
#include "pmsymboltable.h"
#include "pmscanner.h"
#include "pmobjectselect.h"
#include <qlayout.h>
#include <qlineedit.h>
#include <qlabel.h>
#include <qtextstream.h>
#include <qpushbutton.h>
#include <qlistbox.h>
#include <klocale.h>
#include <kmessagebox.h>
PMDeclareEdit::PMDeclareEdit( QWidget* parent, const char* name )
: Base( parent, name )
{
m_pDisplayedObject = 0;
m_pSelectedObject = 0;
}
void PMDeclareEdit::createTopWidgets( )
{
Base::createTopWidgets( );
QHBoxLayout* layout = new QHBoxLayout( topLayout( ) );
m_pNameEdit = new QLineEdit( this );
m_pNameEdit->setMaxLength( 40 );
QLabel* label = new QLabel( i18n( "Identifier:" ), this );
layout->addWidget( label );
layout->addWidget( m_pNameEdit );
connect( m_pNameEdit, SIGNAL( textChanged( const QString& ) ),
SLOT( slotNameChanged( const QString& ) ) );
}
void PMDeclareEdit::createBottomWidgets( )
{
QLabel* l = new QLabel( i18n( "Linked objects:" ), this );
topLayout( )->addWidget( l );
m_pLinkedObjects = new QListBox( this );
m_pLinkedObjects->setMinimumHeight( 100 );
connect( m_pLinkedObjects, SIGNAL( highlighted( QListBoxItem* ) ),
SLOT( slotItemSelected( QListBoxItem* ) ) );
topLayout( )->addWidget( m_pLinkedObjects, 1 );
QHBoxLayout* layout = new QHBoxLayout( topLayout( ) );
m_pSelectButton = new QPushButton( i18n( "Select..." ), this );
m_pSelectButton->setEnabled( false );
connect( m_pSelectButton, SIGNAL( clicked( ) ), SLOT( slotSelect( ) ) );
layout->addStretch( );
layout->addWidget( m_pSelectButton );
Base::createBottomWidgets( );
}
void PMDeclareEdit::displayObject( PMObject* o )
{
if( o->isA( "Declare" ) )
{
m_pDisplayedObject = ( PMDeclare* ) o;
m_pNameEdit->setText( QString( m_pDisplayedObject->id( ) ) );
m_pNameEdit->setReadOnly( m_pDisplayedObject->isReadOnly( ) );
PMObjectListIterator it( m_pDisplayedObject->linkedObjects( ) );
m_pLinkedObjects->clear( );
for( ; it.current( ); ++it )
m_pLinkedObjects->insertItem(
new PMListBoxObject( it.current( ) ) );
m_pSelectButton->setEnabled( false );
m_pSelectedObject = 0;
Base::displayObject( o );
}
else
kdError( PMArea ) << "PMDeclareEdit: Can't display object\n";
}
void PMDeclareEdit::saveContents( )
{
if( m_pDisplayedObject )
{
Base::saveContents( );
m_pDisplayedObject->setID( m_pNameEdit->text( ) );
}
}
bool PMDeclareEdit::isDataValid( )
{
if( !Base::isDataValid( ) )
return false;
QString text = m_pNameEdit->text( );
if( text.length( ) == 0 )
{
KMessageBox::error( this, i18n( "Please enter an identifier!" ),
i18n( "Error" ) );
return false;
}
if( text == m_pDisplayedObject->id( ) )
return true;
QTextStream str( &text, IO_ReadOnly );
QChar c;
int ac;
bool ok = true;
int i = 0;
while( !str.atEnd( ) && ok )
{
str >> c;
ac = c.latin1( );
// QChar::category can't be used because umlauts are not allowed
if( i == 0 )
ok = ( ( ( ac >= 'a' ) && ( ac <= 'z' ) ) ||
( ( ac >= 'A' ) && ( ac <= 'Z' ) ) ||
( ac == '_' ) );
else
ok = ( ( ( ac >= 'a' ) && ( ac <= 'z' ) ) ||
( ( ac >= 'A' ) && ( ac <= 'Z' ) ) ||
( ( ac >= '0' ) && ( ac <= '9' ) ) ||
( ac == '_' ) );
i++;
}
if( !ok )
{
KMessageBox::error( this, i18n( "An identifier may consist of letters,"
" digits and the underscore character"
" ('_').\n"
"The first character must be a letter"
" or the underscore character!" ),
i18n( "Error" ) );
return false;
}
// valid identifer!
PMReservedWordDict* dict = PMScanner::reservedWords( );
if( dict->find( text.latin1( ) ) != -1 )
{
KMessageBox::error( this, i18n( "You can't use a povray reserved word"
" as an identifier!" ), i18n( "Error" ) );
return false;
}
dict = PMScanner::directives( );
if( dict->find( text.latin1( ) ) != -1 )
{
KMessageBox::error( this, i18n( "You can't use a povray directive"
" as an identifier!" ), i18n( "Error" ) );
return false;
}
// no reserved word
PMSymbolTable* st = part( )->symbolTable( );
if( st->find( text ) )
{
KMessageBox::error( this, i18n( "Please enter a unique identifier!" ),
i18n( "Error" ) );
return false;
}
return true;
}
void PMDeclareEdit::slotNameChanged( const QString& )
{
emit dataChanged( );
}
void PMDeclareEdit::slotItemSelected( QListBoxItem* item )
{
m_pSelectedObject = ( ( PMListBoxObject* ) item )->object( );
m_pSelectButton->setEnabled( true );
}
void PMDeclareEdit::slotSelect( )
{
if( m_pSelectedObject )
part( )->slotObjectChanged( m_pSelectedObject, PMCNewSelection, this );
}
#include "pmdeclareedit.moc"
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