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139 lines
3.7 KiB
139 lines
3.7 KiB
/* -*- C++ -*- adept/taglist.cpp
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written by Peter Rockai <me@mornfall.net> */
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#include <qlabel.h>
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#include <qtimer.h>
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#include <kdebug.h>
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#include <qdragobject.h>
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#include <qevent.h>
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#include <klocale.h>
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#include <apt-front/cache/cache.h>
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#include <ept/debtags/vocabulary.h>
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#include <adept/taglist.h>
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#include <adept/utils.h>
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#include <wibble/operators.h>
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using namespace adept;
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TagLabel::TagLabel( Tag t, TagList *l, QWidget *p, const char *n )
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: QHBox( p, n ), m_tag( t ), m_list( l )
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{
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if ( t == Tag() ) {
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m_description = new QLabel( QString( " " ) + i18n( "[none]" ), this );
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} else {
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m_remove = new QLabel( this );
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m_remove->setPixmap( SmallIcon( u8( "cancel" ) ) );
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m_remove->setSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
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m_description = new QLabel( QString( " [" ) + t.fullname( "n/a" ) + "] "
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+ t.shortDescription( "n/a" ), this );
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}
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}
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void TagLabel::mouseReleaseEvent( QMouseEvent *e ) {
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using namespace wibble::operators;
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if ( e->button() == Qt::LeftButton &&
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dynamic_cast< QLabel * >( childAt( e->pos() ) ) == m_remove )
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m_list->setTags( m_list->tags() - m_tag );
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}
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TagList::TagList( QWidget *p, const char *n )
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: QVBox( p, n )
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{
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m_name = new QLabel( this );
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m_tagBox = new QVBox( this );
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m_tagBox->setFrameShape( QFrame::Panel );
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m_tagBox->setFrameShadow( QFrame::Sunken );
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m_updateScheduled = false;
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setAcceptDrops( true );
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scheduleUpdateList();
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m_tagSpacer = new QSpacerItem( 0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding );
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}
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void TagList::setTags( Tag::Set t )
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{
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m_tags = t;
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scheduleUpdateList();
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emit tagsChanged( m_tags );
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}
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void TagList::addTag( Tag t )
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{
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using namespace wibble::operators;
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if ( t == Tag() )
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return;
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m_tags |= t;
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scheduleUpdateList();
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emit tagsChanged( m_tags );
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}
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void TagList::setName( QString n )
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{
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m_name->setText( n );
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}
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void TagList::scheduleUpdateList()
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{
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if (! m_updateScheduled) {
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kdDebug() << "TagList: scheduling update" << endl;
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QTimer::singleShot( 0, this, SLOT( updateList() ) );
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m_updateScheduled = true;
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}
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}
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void TagList::updateList()
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{
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kdDebug() << "TagList (" + m_name->text() + "): updating list" << endl;
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clearList();
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if ( m_tags.empty() ) {
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appendLabel( new TagLabel( Tag(), this, m_tagBox ) );
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} else {
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for ( Tag::Set::iterator i = m_tags.begin(); i != m_tags.end(); ++i ) {
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appendLabel( new TagLabel( *i, this, m_tagBox ) );
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}
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}
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m_tagBox->layout()->addItem( m_tagSpacer );
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update();
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parentWidget()->adjustSize();
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m_updateScheduled = false;
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}
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void TagList::appendLabel( TagLabel *l )
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{
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m_list.push_back( l );
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l->show();
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}
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void TagList::mouseMoveEvent( QMouseEvent *e ) {
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TagLabel *child = dynamic_cast< TagLabel * >( childAt( e->pos() )->parentWidget() );
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if ( !child )
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return;
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QDragObject *d = new QTextDrag( child->tag().fullname( "" ), this );
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d->dragCopy();
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}
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void TagList::dragEnterEvent( QDragEnterEvent *e ) {
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kdDebug() << "TagList::dragEnterEvent" << endl;
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e->accept( QTextDrag::canDecode( e ) );
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}
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void TagList::dropEvent( QDropEvent* e ) {
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QString tag;
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kdDebug() << "TagList: drop event" << endl;
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QTextDrag::decode( e, tag );
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try {
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addTag( aptFront::cache::Global::get().tags().tagByName(
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static_cast< const char * >( tag.local8Bit() ) ) );
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} catch (...) {} // not a tag, ignore
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scheduleUpdateList();
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}
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void TagList::clearList()
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{
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for (List::iterator i = m_list.begin(); i != m_list.end(); ++i ) {
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delete *i;
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}
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m_list.clear();
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m_tagBox->layout()->removeItem( m_tagSpacer );
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}
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