TableTab.cpp

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// DUNE DAQ modification notice:
// This file has been modified from the original ATLAS dbe source for the DUNE DAQ project.
// Fork baseline commit: dbe-02-12-17 (2022-05-12).
// Renamed since fork: no.

#include <QHeaderView>
#include <QMimeData>
#include <QVBoxLayout>
#include <qevent.h>

#include "dbe/MainWindow.hpp"
#include "dbe/TableTab.hpp"
 
//------------------------------------------------------------------------------------------------------
dbe::TableTab::TableTab(QWidget* parent)
  : QWidget(parent)
  , this_model(nullptr)
  , this_filter(nullptr)
  , this_delegate(nullptr)
  , this_view(nullptr)
{
  this_view = new CustomTableView();
  QVBoxLayout* TabLayout = new QVBoxLayout(this);
  TabLayout->addWidget(this_view);
  this_view->hide();
  setAcceptDrops(true);
  this_holder = dynamic_cast<QTabWidget*>(parent);
}
 
dbe::TableTab::~TableTab()
{
  delete this_model;
  delete this_filter;
  delete this_delegate;
  delete this_view;
}
//------------------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------------------
void
dbe::TableTab::create_models()
{
 
  if (this_model == nullptr) {
    this_model = new dbe::models::table();
    connect(this,
            SIGNAL(sig_data_dropped(QMimeData const&, Qt::DropAction)),
            this_model,
            SLOT(slot_data_dropped(QMimeData const&, Qt::DropAction)));
  }
 
  this_delegate = this_delegate == nullptr ? new CustomDelegate() : this_delegate;
  this_filter = this_filter == nullptr ? new dbe::models::tableselection() : this_filter;
}
 
void
dbe::TableTab::reset_models()
{
  this_model->ResetModel();
  this_filter->ResetModel();
}
 
void
dbe::TableTab::CreateModels()
{
  if (this_model == nullptr) {
    create_models();
  } else {
    reset_models();
  }
 
  connect(this_model, SIGNAL(ResetTab()), this, SLOT(ResetTabView()));
}
//------------------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------------------
void
dbe::TableTab::DisconnectView()
{
  this_view->setModel(NULL);
}
 
void
dbe::TableTab::ResetTableView()
{
  this_filter->setSourceModel(this_model);
 
  this_view->setItemDelegate(this_delegate);
  this_view->setModel(this_filter);
  this_view->show();
 
  ResizeHeaders();
}
 
void
dbe::TableTab::ResizeHeaders()
{
  // TODO: at the moment the resize of columns creates too large columns when several data are in a cell
  //       the resize of rows is a little bit expensive with large tables
  //       to be re-evaluated
  //
  //  if ( this_view->model() != nullptr )
  //  {
  //      this_view->resizeRowsToContents();
  //      this_view->resizeColumnsToContents();
  //  }
}
 
void
dbe::TableTab::ResetTabView()
{
  reset_models();
  ResetTableView();
  this_holder->setTabText(this_holder->indexOf(this), this_model->get_class_name());
}
//------------------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------------------
void
dbe::TableTab::dragEnterEvent(QDragEnterEvent* event)
{
 
  // If there is nothing created then create as needed
  CreateModels();
 
  // Check that all mimetypes are supported
  for (auto const& mimetype : this_model->mimeTypes()) {
    if (not event->mimeData()->hasFormat(mimetype.toStdString().c_str())) {
      event->ignore();
      return;
    }
  }
 
  // Support only copy actions
  if (event->proposedAction() != Qt::DropAction::CopyAction) {
    return;
  }
 
  event->acceptProposedAction();
 
  // connect signals
  MainWindow* mainwin = MainWindow::findthis();
  connect(
    GetTableView(), SIGNAL(OpenEditor(tref)), mainwin, SLOT(slot_launch_object_editor(tref)), Qt::UniqueConnection);
  connect(GetTableDelegate(),
          SIGNAL(CreateObjectEditorSignal(tref)),
          mainwin,
          SLOT(slot_launch_object_editor(tref)),
          Qt::UniqueConnection);
}
//------------------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------------------
void
dbe::TableTab::dropEvent(QDropEvent* event)
{
  emit sig_data_dropped(*event->mimeData(), event->proposedAction());
}
//------------------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------------------
dbe::models::table*
dbe::TableTab::GetTableModel() const
{
  return this_model;
}
 
dbe::models::tableselection*
dbe::TableTab::GetTableFilter() const
{
  return this_filter;
}
 
dbe::CustomDelegate*
dbe::TableTab::GetTableDelegate() const
{
  return this_delegate;
}
 
dbe::CustomTableView*
dbe::TableTab::GetTableView() const
{
  return this_view;
}
//------------------------------------------------------------------------------------------------------