/**
 * @RDE_HEADER@
 * A QTreeView with some events catched
 * $Id$
 * $HeadURL$
 * $Author$
 *
 * Created by Mike Wille, SLSE, 2016-10-07
 */

#include "tree_view.h"

#include <QGuiApplication>
#include <QKeyEvent>

namespace LtsDataView
{

// needed until QTBUG-78726 is fixed
void TreeView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
                           const QVector<int> &roles)
{
  QTreeView::dataChanged(topLeft, bottomRight, roles);
  if (!m_toolTipPos.isNull() && (roles.isEmpty() || roles.contains(Qt::ToolTipRole)))
  {
    if (viewport()->mapToGlobal(m_toolTipPos) != QCursor::pos())
    {
      m_toolTipPos = QPoint();
      return;
    }
    const QModelIndex index = indexAt(m_toolTipPos);
    if (index.row() >= topLeft.row() && index.row() <= bottomRight.row() &&
        index.column() >= topLeft.column() && index.column() <= bottomRight.column())
    {

      QHelpEvent he(QEvent::ToolTip, m_toolTipPos, viewport()->mapToGlobal(m_toolTipPos));
      QTreeView::viewportEvent(&he);
      m_toolTipPos = QPoint();
    }
  }
}

void TreeView::keyPressEvent(QKeyEvent *event)
{
  if (QGuiApplication::keyboardModifiers() == Qt::ControlModifier
      && event->key() == Qt::Key_C)
    emit signalCopyToClipBoard(); // queue !

  QTreeView::keyPressEvent(event);
}

bool TreeView::edit(const QModelIndex &index, EditTrigger trigger, QEvent *event)
{

  if (trigger == QAbstractItemView::NoEditTriggers)
  {
    const QMouseEvent *me = dynamic_cast<QMouseEvent*>(event);
    if (me && me->buttons().testFlag(Qt::LeftButton))
      trigger = QAbstractItemView::AllEditTriggers;
  }
  return QTreeView::edit(index, trigger, event);
}

// needed until QTBUG-78726 is fixed
bool TreeView::viewportEvent(QEvent *event)
{
  bool ret = QTreeView::viewportEvent(event);
  if (event->type() == QEvent::ToolTip)
  {
    if (!ret)
    {
      QHelpEvent *he = static_cast<QHelpEvent*>(event);
      m_toolTipPos = he->pos();
    }
    else
      m_toolTipPos = QPoint();
  }
  return ret;
}


} // namespace LtsDataView