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tdelibs/kdeui/klanguagebutton.cpp

285 lines
6.9 KiB

/*
* klanguagebutton.cpp - Adds some methods for inserting languages.
*
* Copyright (c) 1999-2003 Hans Petter Bieker <bieker@kde.org>
*
* Requires the Qt widget libraries, available at no cost at
* http://www.trolltech.com/
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define INCLUDE_MENUITEM_DEF
#include <tqpopupmenu.h>
#include <tqlayout.h>
#include <tqpushbutton.h>
#include "klanguagebutton.h"
#include "klanguagebutton.moc"
#include <kdebug.h>
static void checkInsertPos( TQPopupMenu *popup, const TQString & str,
int &index )
{
if ( index == -1 )
return;
int a = 0;
int b = popup->count();
while ( a < b )
{
int w = ( a + b ) / 2;
int id = popup->idAt( w );
int j = str.localeAwareCompare( popup->text( id ) );
if ( j > 0 )
a = w + 1;
else
b = w;
}
index = a; // it doesn't really matter ... a == b here.
Q_ASSERT( a == b );
}
static TQPopupMenu * checkInsertIndex( TQPopupMenu *popup,
const TQStringList *tags, const TQString &submenu )
{
int pos = tags->tqfindIndex( submenu );
TQPopupMenu *pi = 0;
if ( pos != -1 )
{
TQMenuItem *p = popup->tqfindItem( pos );
pi = p ? p->popup() : 0;
}
if ( !pi )
pi = popup;
return pi;
}
class KLanguageButtonPrivate
{
public:
TQPushButton * button;
bool staticText;
};
KLanguageButton::KLanguageButton( TQWidget * parent, const char *name )
: TQWidget( parent, name )
{
init(name);
}
KLanguageButton::KLanguageButton( const TQString & text, TQWidget * parent, const char *name )
: TQWidget( parent, name )
{
init(name);
setText(text);
}
void KLanguageButton::setText(const TQString & text)
{
d->staticText = true;
d->button->setText(text);
d->button->setIconSet(TQIconSet()); // remove the icon
}
void KLanguageButton::init(const char * name)
{
m_current = 0;
m_ids = new TQStringList;
m_popup = 0;
m_oldPopup = 0;
d = new KLanguageButtonPrivate;
d->staticText = false;
TQHBoxLayout *layout = new TQHBoxLayout(this, 0, 0);
layout->setAutoAdd(true);
d->button = new TQPushButton( this, name ); // HPB don't touch this!!
clear();
}
KLanguageButton::~KLanguageButton()
{
delete m_ids;
delete d->button;
delete d;
}
void KLanguageButton::insertLanguage( const TQString& path, const TQString& name,
const TQString&, const TQString &submenu, int index )
{
TQString output = name + TQString::tqfromLatin1( " (" ) + path +
TQString::tqfromLatin1( ")" );
#if 0
// Nooooo ! Country != language
TQPixmap flag( locate( "locale", sub + path +
TQString::tqfromLatin1( "/flag.png" ) ) );
#endif
insertItem( output, path, submenu, index );
}
void KLanguageButton::insertItem( const TQIconSet& icon, const TQString &text,
const TQString & id, const TQString &submenu, int index )
{
TQPopupMenu *pi = checkInsertIndex( m_popup, m_ids, submenu );
checkInsertPos( pi, text, index );
pi->insertItem( icon, text, count(), index );
m_ids->append( id );
}
void KLanguageButton::insertItem( const TQString &text, const TQString & id,
const TQString &submenu, int index )
{
insertItem( TQIconSet(), text, id, submenu, index );
}
void KLanguageButton::insertSeparator( const TQString &submenu, int index )
{
TQPopupMenu *pi = checkInsertIndex( m_popup, m_ids, submenu );
pi->insertSeparator( index );
m_ids->append( TQString::null );
}
void KLanguageButton::insertSubmenu( const TQIconSet & icon,
const TQString &text, const TQString &id,
const TQString &submenu, int index )
{
TQPopupMenu *pi = checkInsertIndex( m_popup, m_ids, submenu );
TQPopupMenu *p = new TQPopupMenu( pi );
checkInsertPos( pi, text, index );
pi->insertItem( icon, text, p, count(), index );
m_ids->append( id );
connect( p, TQT_SIGNAL( activated( int ) ),
TQT_SLOT( slotActivated( int ) ) );
connect( p, TQT_SIGNAL( highlighted( int ) ), this,
TQT_SLOT( slotHighlighted( int ) ) );
}
void KLanguageButton::insertSubmenu( const TQString &text, const TQString &id,
const TQString &submenu, int index )
{
insertSubmenu(TQIconSet(), text, id, submenu, index);
}
void KLanguageButton::slotActivated( int index )
{
//kdDebug() << "slotActivated" << index << endl;
setCurrentItem( index );
// Forward event from popup menu as if it was emitted from this widget:
TQString id = *m_ids->tqat( index );
emit activated( id );
}
void KLanguageButton::slotHighlighted( int index )
{
//kdDebug() << "slotHighlighted" << index << endl;
TQString id = *m_ids->tqat( index );
emit ( highlighted(id) );
}
int KLanguageButton::count() const
{
return m_ids->count();
}
void KLanguageButton::clear()
{
m_ids->clear();
delete m_oldPopup;
m_oldPopup = m_popup;
m_popup = new TQPopupMenu( this );
d->button->setPopup( m_popup );
connect( m_popup, TQT_SIGNAL( activated( int ) ),
TQT_SLOT( slotActivated( int ) ) );
connect( m_popup, TQT_SIGNAL( highlighted( int ) ),
TQT_SLOT( slotHighlighted( int ) ) );
if ( !d->staticText )
{
d->button->setText( TQString::null );
d->button->setIconSet( TQIconSet() );
}
}
bool KLanguageButton::contains( const TQString & id ) const
{
return m_ids->tqcontains( id ) > 0;
}
TQString KLanguageButton::current() const
{
return *m_ids->tqat( currentItem() );
}
TQString KLanguageButton::id( int i ) const
{
if ( i < 0 || i >= count() )
{
kdDebug() << "KLanguageButton::tag(), unknown tag " << i << endl;
return TQString::null;
}
return *m_ids->tqat( i );
}
int KLanguageButton::currentItem() const
{
return m_current;
}
void KLanguageButton::setCurrentItem( int i )
{
if ( i < 0 || i >= count() )
return;
m_current = i;
if ( !d->staticText )
{
d->button->setText( m_popup->text( m_current ) );
TQIconSet *icon = m_popup->iconSet( m_current );
if ( icon )
d->button->setIconSet( *icon );
else
d->button->setIconSet( TQIconSet() );
}
}
void KLanguageButton::setCurrentItem( const TQString & id )
{
int i = m_ids->tqfindIndex( id );
if ( id.isNull() )
i = 0;
if ( i != -1 )
setCurrentItem( i );
}