+/***************************************************************************
+ * Copyright (C) 2008 by Peter Penz <peter.penz@gmx.at> *
+ * *
+ * 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 *
+ ***************************************************************************/
+
+#include "selectionmanager.h"
+
+#include "dolphinmodel.h"
+#include "selectiontoggle.h"
+#include <kdirmodel.h>
+#include <kiconeffect.h>
+
+#include <QAbstractButton>
+#include <QAbstractItemView>
+#include <QAbstractProxyModel>
+#include <QModelIndex>
+#include <QPainter>
+#include <QPaintEvent>
+#include <QRect>
+
+SelectionManager::SelectionManager(QAbstractItemView* parent) :
+ QObject(parent),
+ m_view(parent),
+ m_button(0),
+ m_item()
+{
+ connect(parent, SIGNAL(entered(const QModelIndex&)),
+ this, SLOT(slotEntered(const QModelIndex&)));
+ connect(parent, SIGNAL(viewportEntered()),
+ this, SLOT(slotViewportEntered()));
+ m_button = new SelectionToggle(m_view->viewport());
+ m_button->setCheckable(true);
+ m_button->hide();
+ connect(m_button, SIGNAL(clicked(bool)),
+ this, SLOT(setItemSelected(bool)));
+ connect(m_view->selectionModel(), SIGNAL(selectionChanged()),
+ this, SLOT(slotSelectionChanged()));
+}
+
+SelectionManager::~SelectionManager()
+{
+}
+
+void SelectionManager::slotEntered(const QModelIndex& index)
+{
+ m_button->hide();
+ if (index.isValid() && (index.column() == DolphinModel::Name)) {
+ m_item = itemForIndex(index);
+
+ const QRect rect = m_view->visualRect(index);
+ const int gap = 2;
+ const int x = rect.right() - m_button->width() - gap;
+ int y = rect.top();
+ if (rect.height() <= m_button->height() * 2) {
+ // center the button vertically
+ y += (rect.height() - m_button->height()) / 2;
+ } else {
+ y += gap;
+ }
+
+ m_button->move(QPoint(x, y));
+
+ QItemSelectionModel* selModel = m_view->selectionModel();
+ m_button->setChecked(selModel->isSelected(index));
+ m_button->show();
+ } else {
+ m_item = KFileItem();
+ }
+}
+
+void SelectionManager::slotViewportEntered()
+{
+ m_button->hide();
+ m_item = KFileItem();
+}
+
+void SelectionManager::slotSelectionChanged()
+{
+ const QModelIndex index = indexForItem(m_item);
+ if (index.isValid()) {
+ QItemSelectionModel* selModel = m_view->selectionModel();
+ m_button->setChecked(selModel->isSelected(index));
+ }
+}
+
+void SelectionManager::setItemSelected(bool selected)
+{
+ emit selectionChanged();
+ Q_ASSERT(!m_item.isNull());
+
+ const QModelIndex index = indexForItem(m_item);
+ if (index.isValid()) {
+ QItemSelectionModel* selModel = m_view->selectionModel();
+ if (selected) {
+ selModel->select(index, QItemSelectionModel::Select);
+ } else {
+ selModel->select(index, QItemSelectionModel::Deselect);
+ }
+ }
+}
+
+KFileItem SelectionManager::itemForIndex(const QModelIndex& index) const
+{
+ QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(m_view->model());
+ KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
+ const QModelIndex dirIndex = proxyModel->mapToSource(index);
+ return dirModel->itemForIndex(dirIndex);
+}
+
+const QModelIndex SelectionManager::indexForItem(const KFileItem& item) const
+{
+ QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(m_view->model());
+ KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
+ const QModelIndex dirIndex = dirModel->indexForItem(item);
+ return proxyModel->mapFromSource(dirIndex);
+}
+
+#include "selectionmanager.moc"
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