ModuleBase_WidgetExprEditor.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_WIDGETEXPREDITOR_H_
#define MODULEBASE_WIDGETEXPREDITOR_H_
 
#include <ModuleBase.h>
#include <ModuleBase_ModelWidget.h>
 
#include <QList>
#include <QLabel>
#include <QString>
#include <QStringList>
#include <QPlainTextEdit>
 
class QWidget;
class QStringListModel;
class QCompleter;
 
class ExpressionEditor: public QPlainTextEdit
{
  Q_OBJECT
 public:
  explicit ExpressionEditor(QWidget* theParent = 0);
  virtual ~ExpressionEditor();
 
  void setCompletionList(QStringList&);
 
  void setPlaceHolderText( const QString& );
 
  QString placeHolderText() const;
 
 public slots:
  void insertCompletion(const QString& theCompletion, bool isSingleWord = false);
 
  void performCompletion();
 
  void onTextChanged();
 
signals:
  void valueModified();
 
  void keyReleased(QObject* theObject, QKeyEvent* theEvent);
 
 protected:
  void performCompletion(const QString& theCompletionPrefix);
 
  virtual void keyPressEvent(QKeyEvent* theEvent);
 
  bool handledCompletedAndSelected(QKeyEvent* theEvent);
 
  virtual void paintEvent( QPaintEvent* );
 
private:
  QStringListModel* myCompleterModel;
  QCompleter* myCompleter;
  bool myCompletedAndSelected;
  QString myPlaceHolderText;
};
 
class MODULEBASE_EXPORT ModuleBase_WidgetExprEditor : public ModuleBase_ModelWidget
{
  Q_OBJECT
 public:
  ModuleBase_WidgetExprEditor( QWidget* theParent,
                               const Config_WidgetAPI* theData,
                               const std::string& thePlaceHolder );
  virtual ~ModuleBase_WidgetExprEditor();
 
  virtual void activateCustom();
 
  virtual QList<QWidget*> getControls() const;
 
protected slots:
  void onTextChanged();
 
protected:
  virtual bool processEnter();
 
  virtual void initializeValueByActivate();
 
  virtual bool storeValueCustom();
 
  virtual bool restoreValueCustom();
 
private:
  QLabel* myResultLabel;
  ExpressionEditor* myEditor;
};
 
#endif /* MODULEBASE_WIDGETEXPREDITOR_H_ */