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Diffstat (limited to 'khelpcenter/htmlsearch/ktagcombobox.cpp')
| -rw-r--r-- | khelpcenter/htmlsearch/ktagcombobox.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/khelpcenter/htmlsearch/ktagcombobox.cpp b/khelpcenter/htmlsearch/ktagcombobox.cpp new file mode 100644 index 000000000..eea4c149f --- /dev/null +++ b/khelpcenter/htmlsearch/ktagcombobox.cpp @@ -0,0 +1,252 @@ +/* + * 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 <qpainter.h> +#include <qpopupmenu.h> + +#include <kdebug.h> + +#include "ktagcombobox.h" +#include "ktagcombobox.moc" + +KTagComboBox::~KTagComboBox () +{ + delete popup; + delete tags; +} + +KTagComboBox::KTagComboBox (QWidget * parent, const char *name) + : QComboBox(parent, name), + popup(0), + old_popup(0) +{ + tags = new QStringList; + + clear(); +} + +void KTagComboBox::popupMenu() +{ + popup->popup( mapToGlobal( QPoint(0,0) ), current ); +} + +void KTagComboBox::keyPressEvent( QKeyEvent *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( QMouseEvent * ) +{ + 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() +{ + tags->clear(); + + delete old_popup; + old_popup = popup; + popup = new QPopupMenu(this); + connect( popup, SIGNAL(activated(int)), + SLOT(internalActivate(int)) ); + connect( popup, SIGNAL(highlighted(int)), + SLOT(internalHighlight(int)) ); +} + +int KTagComboBox::count() const +{ + return tags->count(); +} + +static inline void checkInsertPos(QPopupMenu *popup, const QString & str, int &index) +{ + if (index == -2) index = popup->count(); + 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.compare(popup->text(id)); + + if (j > 0) + a = w + 1; + else + b = w - 1; + } + + index = a; // it doesn't really matter ... a == b here. +} + +static inline QPopupMenu *checkInsertIndex(QPopupMenu *popup, const QStringList *tags, const QString &submenu) +{ + int pos = tags->findIndex(submenu); + + QPopupMenu *pi = 0; + if (pos != -1) + { + QMenuItem *p = popup->findItem(pos); + pi = p?p->popup():0; + } + if (!pi) pi = popup; + + return pi; +} + +void KTagComboBox::insertItem(const QIconSet& icon, const QString &text, const QString &tag, const QString &submenu, int index ) +{ + QPopupMenu *pi = checkInsertIndex(popup, tags, submenu); + checkInsertPos(pi, text, index); + pi->insertItem(icon, text, count(), index); + tags->append(tag); +} + +void KTagComboBox::insertItem(const QString &text, const QString &tag, const QString &submenu, int index ) +{ + QPopupMenu *pi = checkInsertIndex(popup, tags, submenu); + checkInsertPos(pi, text, index); + pi->insertItem(text, count(), index); + tags->append(tag); +} + +void KTagComboBox::insertSeparator(const QString &submenu, int index) +{ + QPopupMenu *pi = checkInsertIndex(popup, tags, submenu); + pi->insertSeparator(index); + tags->append(QString::null); +} + +void KTagComboBox::insertSubmenu(const QString &text, const QString &tag, const QString &submenu, int index) +{ + QPopupMenu *pi = checkInsertIndex(popup, tags, submenu); + QPopupMenu *p = new QPopupMenu(pi); + checkInsertPos(pi, text, index); + pi->insertItem(text, p, count(), index); + tags->append(tag); + connect( p, SIGNAL(activated(int)), + SLOT(internalActivate(int)) ); + connect( p, SIGNAL(highlighted(int)), + SLOT(internalHighlight(int)) ); +} + +void KTagComboBox::paintEvent( QPaintEvent * ev) +{ + QComboBox::paintEvent(ev); + + QPainter p (this); + + // Text + QRect clip(2, 2, width() - 4, height() - 4); +#if 0 + if ( hasFocus() && style().guiStyle() != MotifStyle ) + p.setPen( colorGroup().highlightedText() ); +#endif + p.drawText(clip, AlignCenter | SingleLine, popup->text( current )); + + // Icon + QIconSet *icon = popup->iconSet( this->current ); + if (icon) { + QPixmap pm = icon->pixmap(); + p.drawPixmap( 4, (height()-pm.height())/2, pm ); + } +} + +bool KTagComboBox::containsTag( const QString &str ) const +{ + return tags->contains(str) > 0; +} + +QString KTagComboBox::currentTag() const +{ + return *tags->at(currentItem()); +} + +QString KTagComboBox::tag(int i) const +{ + if (i < 0 || i >= count()) + { + kdDebug() << "KTagComboBox::tag(), unknown tag " << i << endl; + return QString::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 QString &code) +{ + int i = tags->findIndex(code); + if (code.isNull()) + i = 0; + if (i != -1) + setCurrentItem(i); +} + +void KTagComboBox::setFont( const QFont &font ) +{ + QComboBox::setFont( font ); + popup->setFont( font ); +} |