ModuleBase_ListView.h

// Copyright (C) 2014-2023  CEA, EDF
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
#ifndef ModuleBase_ListView_H_
#define ModuleBase_ListView_H_
 
#include "ModuleBase.h"
 
#include <QModelIndex>
#include <QObject>
#include <QListWidget>
#include <QTimer>
 
#include <set>
 
class QAction;
class QListWidget;
class QWidget;
 
 
class CustomListWidget : public QListWidget
{
  Q_OBJECT
public:
  CustomListWidget(QWidget* theParent)
    : QListWidget(theParent)
  {
  }
 
  virtual QSize     sizeHint() const
  {
    int aHeight = 2 * QFontMetrics(font()).height();
    QSize aSize = QListWidget::sizeHint();
    return QSize(aSize.width(), aHeight);
  }
 
  virtual QSize     minimumSizeHint() const
  {
    int aHeight = 4/*2*/ * QFontMetrics(font()).height();
    QSize aSize = QListWidget::minimumSizeHint();
    return QSize(aSize.width(), aHeight);
  }
 
signals:
  void activated();
 
protected:
  virtual void mouseReleaseEvent(QMouseEvent* e) {
    QListWidget::mouseReleaseEvent(e);
    emit activated();
  }
 
#ifndef WIN32
  // The code is necessary only for Linux because
  //it can not update viewport on widget resize
protected:
  void resizeEvent(QResizeEvent* theEvent)
  {
    QListWidget::resizeEvent(theEvent);
    QTimer::singleShot(5, viewport(), SLOT(repaint()));
  }
#endif
};
 
 
class MODULEBASE_EXPORT ModuleBase_ListView : public QObject
{
Q_OBJECT
 
public:
  ModuleBase_ListView(QWidget* theParent = 0, const QString& theObjectName = QString(),
    const QString& theToolTip = QString());
  virtual ~ModuleBase_ListView() {}
 
  QListWidget* getControl() const { return myListControl; }
 
  void addItem(const QString& theTextValue, const int theIndex);
 
  bool hasItem(const QString& theTextValue) const;
 
  void getSelectedIndices(std::set<int>& theIndices);
 
  void selectIndices(const std::set<int>& theIndices);
 
  void removeSelectedItems();
 
  void removeItems(std::set<int>& theIndices);
 
  void restoreSelection(const QModelIndexList& theIndices);
 
  void updateActionsStatus();
 
protected slots:
  void onCopyItem();
 
  void onListSelection();
 
 
signals:
  void deleteActionClicked();
 
  void listActivated();
 
protected:
  QListWidget* myListControl; 
 
  QAction* myCopyAction; 
  QAction* myDeleteAction; 
};
 
#endif