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/*
* ktagcombobox.cpp - A combobox with support for submenues, icons and tags
*
* Copyright (c) 1999-2000 Hans Petter Bieker <bieker@kde.org>
*
* Requires the Qt widget libraries, available at no cost at
* http://www.troll.no/
*
* 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 1
#include <tqpainter.h>
#include <tqpopupmenu.h>
#include <kdebug.h>
#include "ktagcombobox.h"
#include "ktagcombobox.moc"
KTagComboBox::~KTagComboBox ()
{
delete _popup;
delete _tags;
}
KTagComboBox::KTagComboBox (TQWidget * parent, const char *name)
: TQComboBox(parent, name)
{
_popup = new TQPopupMenu(this);
_tags = new TQStringList;
connect( _popup, TQT_SIGNAL(activated(int)),
TQT_SLOT(internalActivate(int)) );
connect( _popup, TQT_SIGNAL(highlighted(int)),
TQT_SLOT(internalHighlight(int)) );
}
void KTagComboBox::popupMenu()
{
_popup->popup( mapToGlobal( TQPoint(0,0) ), _current );
}
void KTagComboBox::keyPressEvent( TQKeyEvent *e )
{
int c;
if ( ( e->key() == Key_F4 && e->state() == 0 ) ||
( e->key() == Key_Down && (e->state() & AltButton) ) ||
( e->key() == Key_Space ) ) {
if ( count() ) {
_popup->setActiveItem( _current );
popupMenu();
}
return;
} else {
e->ignore();
return;
}
c = currentItem();
emit highlighted( c );
emit activated( c );
}
void KTagComboBox::mousePressEvent( TQMouseEvent * )
{
popupMenu();
}
void KTagComboBox::internalActivate( int index )
{
if (_current == index) return;
_current = index;
emit activated( index );
repaint();
}
void KTagComboBox::internalHighlight( int index )
{
emit highlighted( index );
}
void KTagComboBox::clear()
{
_popup->clear();
_tags->clear();
}
int KTagComboBox::count() const
{
return _tags->count();
}
static inline TQPopupMenu *checkInsertIndex(TQPopupMenu *popup, const TQStringList *tags, const TQString &submenu, int *index)
{
int pos = tags->findIndex(submenu);
TQPopupMenu *pi = 0;
if (pos != -1)
{
TQMenuItem *p = popup->findItem(popup->idAt(pos));
pi = p?p->popup():0;
}
if (!pi) pi = popup;
if (*index > (int)pi->count())
*index = -1;
return pi;
}
void KTagComboBox::insertItem(const TQIconSet& icon, const TQString &text, const TQString &tag, const TQString &submenu, int index )
{
TQPopupMenu *pi = checkInsertIndex(_popup, _tags, submenu, &index);
pi->insertItem(icon, text, count(), index);
_tags->append(tag);
}
void KTagComboBox::insertItem(const TQString &text, const TQString &tag, const TQString &submenu, int index )
{
TQPopupMenu *pi = checkInsertIndex(_popup, _tags, submenu, &index);
pi->insertItem(text, count(), index);
_tags->append(tag);
}
void KTagComboBox::insertSeparator(const TQString &submenu, int index)
{
TQPopupMenu *pi = checkInsertIndex(_popup, _tags, submenu, &index);
pi->insertSeparator(index);
_tags->append(TQString::null);
}
void KTagComboBox::insertSubmenu(const TQString &text, const TQString &tag, const TQString &submenu, int index)
{
TQPopupMenu *pi = checkInsertIndex(_popup, _tags, submenu, &index);
TQPopupMenu *p = new TQPopupMenu(pi);
pi->insertItem(text, p, count(), index);
_tags->append(tag);
connect( p, TQT_SIGNAL(activated(int)),
TQT_SLOT(internalActivate(int)) );
connect( p, TQT_SIGNAL(highlighted(int)),
TQT_SLOT(internalHighlight(int)) );
}
void KTagComboBox::changeItem( const TQString &text, int index )
{
_popup->changeItem( text, index);
if (index == _current)
repaint();
}
void KTagComboBox::paintEvent( TQPaintEvent * ev)
{
TQComboBox::paintEvent(ev);
TQPainter p (this);
// Text
TQRect clip(2, 2, width() - 4, height() - 4);
if ( hasFocus())
p.setPen( colorGroup().highlightedText() );
p.drawText(clip, AlignCenter | SingleLine, _popup->text( _current ));
// Icon
TQIconSet *icon = _popup->iconSet( _current );
if (icon) {
TQPixmap pm = icon->pixmap();
p.drawPixmap( 4, (height()-pm.height())/2, pm );
}
}
bool KTagComboBox::containsTag( const TQString &str ) const
{
return _tags->contains(str) > 0;
}
TQString KTagComboBox::currentTag() const
{
return *_tags->at(currentItem());
}
TQString KTagComboBox::tag(int i) const
{
if (i < 0 || i >= count())
{
kdDebug() << "KTagComboBox::tag(), unknown tag " << i << endl;
return TQString::null;
}
return *_tags->at(i);
}
int KTagComboBox::currentItem() const
{
return _current;
}
void KTagComboBox::setCurrentItem(int i)
{
if (i < 0 || i >= count()) return;
_current = i;
repaint();
}
void KTagComboBox::setCurrentItem(const TQString &code)
{
int i = _tags->findIndex(code);
if (code.isNull())
i = 0;
if (i != -1)
setCurrentItem(i);
}
void KTagComboBox::setFont( const TQFont &font )
{
TQComboBox::setFont( font );
_popup->setFont( font );
}
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