Warning, file /office/calligra/libs/widgets/KoResourceSelector.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /* This file is part of the KDE project
  * Copyright (C) 2008 Jan Hambrecht <jaham@gmx.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "KoResourceSelector.h"
 #include <KoResourceServerAdapter.h>
 #include <KoResourceModel.h>
 #include <KoResourceItemView.h>
 #include <KoResourceItemDelegate.h>
 #include <QPainter>
 #include <QTableView>
 #include <QListView>
 #include <QHeaderView>
 #include <QMouseEvent>
 #include <QStyledItemDelegate>
 
 #include <WidgetsDebug.h>
 
 class Q_DECL_HIDDEN KoResourceSelector::Private
 {
 public:
     Private() : displayMode(ImageMode) {}
     DisplayMode displayMode;
 
     void updateIndex( KoResourceSelector * me )
     {
         KoResourceModel * resourceModel = qobject_cast<KoResourceModel*>(me->model());
         if (!resourceModel)
             return;
         if (!resourceModel->rowCount())
             return;
 
         int currentIndex = me->currentIndex();
         QModelIndex currentModelIndex = me->view()->currentIndex();
 
         if (currentIndex < 0 || !currentModelIndex.isValid()) {
             me->blockSignals(true);
             me->view()->setCurrentIndex( resourceModel->index( 0, 0 ) );
             me->setCurrentIndex(0);
             me->blockSignals(false);
             me->update();
         }
     }
 };
 
 KoResourceSelector::KoResourceSelector(QWidget * parent)
     : QComboBox( parent ), d( new Private() )
 {
     connect( this, SIGNAL(currentIndexChanged(int)),
              this, SLOT(indexChanged(int)) );
 
     setMouseTracking(true);
 }
 
 KoResourceSelector::KoResourceSelector( QSharedPointer<KoAbstractResourceServerAdapter> resourceAdapter, QWidget * parent )
     : QComboBox( parent ), d( new Private() )
 {
     Q_ASSERT(resourceAdapter);
 
     setView( new KoResourceItemView(this) );
     setModel( new KoResourceModel(resourceAdapter, this) );
     setItemDelegate( new KoResourceItemDelegate( this ) );
     setMouseTracking(true);
     d->updateIndex(this);
 
     connect( this, SIGNAL(currentIndexChanged(int)),
              this, SLOT(indexChanged(int)) );
 
     connect(resourceAdapter.data(), SIGNAL(resourceAdded(KoResource*)),
             this, SLOT(resourceAdded(KoResource*)));
     connect(resourceAdapter.data(), SIGNAL(removingResource(KoResource*)),
             this, SLOT(resourceRemoved(KoResource*)));
 }
 
 KoResourceSelector::~KoResourceSelector()
 {
     delete d;
 }
 
 void KoResourceSelector::paintEvent( QPaintEvent *pe )
 {
     QComboBox::paintEvent( pe );
 
     if (d->displayMode == ImageMode) {
         QStyleOptionComboBox option;
         option.initFrom( this );
         QRect r = style()->subControlRect( QStyle::CC_ComboBox, &option, QStyle::SC_ComboBoxEditField, this );
 
         QStyleOptionViewItem viewOption;
         viewOption.initFrom( this );
         viewOption.rect = r;
 
         QPainter painter( this );
         itemDelegate()->paint( &painter, viewOption, view()->currentIndex() );
     }
 }
 
 void KoResourceSelector::mousePressEvent( QMouseEvent * event )
 {
     QStyleOptionComboBox opt;
     opt.initFrom( this );
     opt.subControls = QStyle::SC_All;
     opt.activeSubControls = QStyle::SC_ComboBoxArrow;
     QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt,
                                                            mapFromGlobal(event->globalPos()),
                                                            this);
     // only clicking on combobox arrow shows popup,
     // otherwise the resourceApplied signal is send with the current resource
     if (sc == QStyle::SC_ComboBoxArrow)
         QComboBox::mousePressEvent( event );
     else {
         QModelIndex index = view()->currentIndex();
         if( ! index.isValid() )
             return;
 
         KoResource * resource = static_cast<KoResource*>( index.internalPointer() );
         if( resource )
             emit resourceApplied( resource );
     }
 }
 
 void KoResourceSelector::mouseMoveEvent( QMouseEvent * event )
 {
     QStyleOptionComboBox option;
     option.initFrom( this );
     QRect r = style()->subControlRect( QStyle::CC_ComboBox, &option, QStyle::SC_ComboBoxEditField, this );
     if (r.contains(event->pos()))
         setCursor(Qt::PointingHandCursor);
     else
         unsetCursor();
 }
 
 void KoResourceSelector::setResourceAdapter(QSharedPointer<KoAbstractResourceServerAdapter>resourceAdapter)
 {
     Q_ASSERT(resourceAdapter);
     setModel(new KoResourceModel(resourceAdapter, this));
     d->updateIndex(this);
 
     connect(resourceAdapter.data(), SIGNAL(resourceAdded(KoResource*)),
             this, SLOT(resourceAdded(KoResource*)));
     connect(resourceAdapter.data(), SIGNAL(removingResource(KoResource*)),
             this, SLOT(resourceRemoved(KoResource*)));
 }
 
 void KoResourceSelector::setDisplayMode(DisplayMode mode)
 {
     if (mode == d->displayMode)
         return;
 
     switch(mode) {
     case ImageMode:
         setItemDelegate(new KoResourceItemDelegate(this));
         setView( new KoResourceItemView(this) );
         break;
     case TextMode:
         setItemDelegate(new QStyledItemDelegate(this));
         setView(new QListView(this));
         break;
     }
 
     d->displayMode = mode;
     d->updateIndex(this);
 }
 
 void KoResourceSelector::setColumnCount( int columnCount )
 {
     KoResourceModel * resourceModel = qobject_cast<KoResourceModel*>(model());
     if (resourceModel)
         resourceModel->setColumnCount( columnCount );
 }
 
 void KoResourceSelector::setRowHeight( int rowHeight )
 {
     QTableView * tableView = qobject_cast<QTableView*>(view());
     if (tableView)
         tableView->verticalHeader()->setDefaultSectionSize( rowHeight );
 }
 
 void KoResourceSelector::indexChanged( int )
 {
     QModelIndex index = view()->currentIndex();
     if( ! index.isValid() )
         return;
 
     KoResource * resource = static_cast<KoResource*>( index.internalPointer() );
     if( resource )
         emit resourceSelected( resource );
 }
 
 void KoResourceSelector::resourceAdded(KoResource*)
 {
     d->updateIndex(this);
 }
 
 void KoResourceSelector::resourceRemoved(KoResource*)
 {
     d->updateIndex(this);
 }