File indexing completed on 2024-04-21 15:23:40

 /********************************************************************************
  * Copyright (C) 2012-2015 by Stephen Allewell                                  *
  * steve.allewell@gmail.com                                                     *
  *                                                                              *
  * 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.                                          *
  ********************************************************************************/
 
 
 /**
  * @file
  * Header file for the SymbolListWidget class.
  */
 
 
 #ifndef SymbolListWidget_H
 #define SymbolListWidget_H
 
 
 #include <QListWidget>
 
 
 class QMimeData;
 
 class SymbolLibrary;
 class Symbol;
 
 
 /**
  * @brief An extension to the QListWidget to view and select Symbols.
  *
  * This widget is an extension to the QListWidget that can be populated from
  * a SymbolLibrary to display the contained Symbols and allow selection of one
  * of the Symbols for further processing.
  *
  * Additional Symbols can be added individually and all Symbols will be sorted
  * in the view by their index value.
  *
  * Symbols can be removed by their index value.
  */
 class SymbolListWidget : public QListWidget
 {
 public:
     explicit SymbolListWidget(QWidget *parent);
     ~SymbolListWidget();
 
     void setIconSize(int size);
     void loadFromLibrary(SymbolLibrary *library);
     void addSymbol(qint16 index, const Symbol &symbol);
     void removeSymbol(qint16 index);
 
     static QIcon createIcon(const Symbol &symbol, int size);
 
 protected:
     virtual QStringList mimeTypes() const;
     virtual Qt::DropActions supportedDropActions() const;
     virtual QMimeData *mimeData(const QList<QListWidgetItem *> items) const;
     virtual bool dropMimeData(int index, const QMimeData *mimeData, Qt::DropAction action);
     virtual bool event(QEvent *e);
 
 private:
     QListWidgetItem *createItem(qint16 index);
     void updateIcons();
 
     int             m_size;                     /**< size of icons generated in the view */
     SymbolLibrary   *m_library;                 /**< pointer to the library the items belong to */
 
     qint16          m_lastIndex;                /**< the last index in the list */
 
     QMap<qint16, QListWidgetItem*>  m_items;    /**< map of index to QListWidgetItem */
 };
 
 
 #endif