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253 lines
5.9 KiB
253 lines
5.9 KiB
/*
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* ktagcombobox.cpp - A combobox with support for submenues, icons and tags
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*
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* Copyright (c) 1999-2000 Hans Petter Bieker <bieker@kde.org>
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*
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* Requires the Qt widget libraries, available at no cost at
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* http://www.troll.no/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#define INCLUDE_MENUITEM_DEF 1
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#include <tqpainter.h>
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#include <tqpopupmenu.h>
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#include <kdebug.h>
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#include "ktagcombobox.h"
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#include "ktagcombobox.moc"
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KTagComboBox::~KTagComboBox ()
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{
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delete popup;
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delete tags;
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}
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KTagComboBox::KTagComboBox (TQWidget * parent, const char *name)
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: TQComboBox(parent, name),
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popup(0),
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old_popup(0)
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{
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tags = new TQStringList;
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clear();
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}
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void KTagComboBox::popupMenu()
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{
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popup->popup( mapToGlobal( TQPoint(0,0) ), current );
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}
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void KTagComboBox::keyPressEvent( TQKeyEvent *e )
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{
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int c;
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if ( ( e->key() == Key_F4 && e->state() == 0 ) ||
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( e->key() == Key_Down && (e->state() & AltButton) ) ||
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( e->key() == Key_Space ) ) {
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if ( count() ) {
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popup->setActiveItem( current );
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popupMenu();
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}
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return;
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} else {
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e->ignore();
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return;
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}
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c = currentItem();
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emit highlighted( c );
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emit activated( c );
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}
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void KTagComboBox::mousePressEvent( TQMouseEvent * )
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{
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popupMenu();
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}
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void KTagComboBox::internalActivate( int index )
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{
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if (current == index) return;
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current = index;
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emit activated( index );
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repaint();
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}
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void KTagComboBox::internalHighlight( int index )
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{
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emit highlighted( index );
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}
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void KTagComboBox::clear()
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{
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tags->clear();
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delete old_popup;
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old_popup = popup;
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popup = new TQPopupMenu(this);
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connect( popup, TQT_SIGNAL(activated(int)),
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TQT_SLOT(internalActivate(int)) );
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connect( popup, TQT_SIGNAL(highlighted(int)),
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TQT_SLOT(internalHighlight(int)) );
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}
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int KTagComboBox::count() const
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{
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return tags->count();
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}
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static inline void checkInsertPos(TQPopupMenu *popup, const TQString & str, int &index)
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{
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if (index == -2) index = popup->count();
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if (index != -1) return;
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int a = 0;
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int b = popup->count();
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while (a <= b) {
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int w = (a + b) / 2;
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int id = popup->idAt(w);
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int j = str.compare(popup->text(id));
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if (j > 0)
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a = w + 1;
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else
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b = w - 1;
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}
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index = a; // it doesn't really matter ... a == b here.
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}
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static inline TQPopupMenu *checkInsertIndex(TQPopupMenu *popup, const TQStringList *tags, const TQString &submenu)
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{
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int pos = tags->findIndex(submenu);
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TQPopupMenu *pi = 0;
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if (pos != -1)
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{
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TQMenuItem *p = popup->findItem(pos);
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pi = p?p->popup():0;
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}
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if (!pi) pi = popup;
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return pi;
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}
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void KTagComboBox::insertItem(const TQIconSet& icon, const TQString &text, const TQString &tag, const TQString &submenu, int index )
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{
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TQPopupMenu *pi = checkInsertIndex(popup, tags, submenu);
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checkInsertPos(pi, text, index);
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pi->insertItem(icon, text, count(), index);
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tags->append(tag);
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}
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void KTagComboBox::insertItem(const TQString &text, const TQString &tag, const TQString &submenu, int index )
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{
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TQPopupMenu *pi = checkInsertIndex(popup, tags, submenu);
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checkInsertPos(pi, text, index);
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pi->insertItem(text, count(), index);
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tags->append(tag);
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}
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void KTagComboBox::insertSeparator(const TQString &submenu, int index)
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{
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TQPopupMenu *pi = checkInsertIndex(popup, tags, submenu);
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pi->insertSeparator(index);
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tags->append(TQString::null);
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}
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void KTagComboBox::insertSubmenu(const TQString &text, const TQString &tag, const TQString &submenu, int index)
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{
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TQPopupMenu *pi = checkInsertIndex(popup, tags, submenu);
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TQPopupMenu *p = new TQPopupMenu(pi);
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checkInsertPos(pi, text, index);
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pi->insertItem(text, p, count(), index);
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tags->append(tag);
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connect( p, TQT_SIGNAL(activated(int)),
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TQT_SLOT(internalActivate(int)) );
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connect( p, TQT_SIGNAL(highlighted(int)),
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TQT_SLOT(internalHighlight(int)) );
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}
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void KTagComboBox::paintEvent( TQPaintEvent * ev)
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{
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TQComboBox::paintEvent(ev);
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TQPainter p (this);
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// Text
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TQRect clip(2, 2, width() - 4, height() - 4);
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#if 0
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if ( hasFocus() && style().guiStyle() != MotifStyle )
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p.setPen( colorGroup().highlightedText() );
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#endif
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p.drawText(clip, AlignCenter | SingleLine, popup->text( current ));
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// Icon
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TQIconSet *icon = popup->iconSet( this->current );
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if (icon) {
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TQPixmap pm = icon->pixmap();
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p.drawPixmap( 4, (height()-pm.height())/2, pm );
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}
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}
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bool KTagComboBox::containsTag( const TQString &str ) const
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{
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return tags-.contains(str) > 0;
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}
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TQString KTagComboBox::currentTag() const
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{
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return *tags->at(currentItem());
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}
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TQString KTagComboBox::tag(int i) const
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{
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if (i < 0 || i >= count())
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{
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kdDebug() << "KTagComboBox::tag(), unknown tag " << i << endl;
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return TQString::null;
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}
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return *tags->at(i);
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}
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int KTagComboBox::currentItem() const
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{
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return current;
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}
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void KTagComboBox::setCurrentItem(int i)
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{
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if (i < 0 || i >= count()) return;
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current = i;
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repaint();
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}
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void KTagComboBox::setCurrentItem(const TQString &code)
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{
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int i = tags->findIndex(code);
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if (code.isNull())
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i = 0;
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if (i != -1)
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setCurrentItem(i);
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}
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void KTagComboBox::setFont( const TQFont &font )
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{
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TQComboBox::setFont( font );
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popup->setFont( font );
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}
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