ImageFileListWidget.h

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#ifndef ImageFileListWidget_H
#define ImageFileListWidget_H

#include <QWidget>

#include <QPointer>
#include <QScopedPointer>

#include "ImageList.h"
#include "ImageTreeWidget.h"
#include "PvlObject.h"

class QLabel;
class QLineEdit;
class QProgressBar;
class QSettings;
class QToolBar;
class QTreeWidgetItem;

namespace Isis {
  class Directory;
  class ImageTreeWidgetItem;
  class ProgressBar;

  class ImageFileListWidget : public QWidget {
      Q_OBJECT
    public:
      ImageFileListWidget(Directory *directory = 0, QWidget *parent = 0);
      virtual ~ImageFileListWidget();

      QProgressBar *getProgress();
      void fromPvl(PvlObject &pvl);
      PvlObject toPvl() const;
      void load(XmlStackedHandlerReader *xmlReader);
      void save(QXmlStreamWriter &stream, Project *project, FileName newProjectRoot) const;

      QList<QAction *> actions();
      QList<QAction *> getViewActions();
      QList<QAction *> getExportActions();

      static QWidget *getLongHelp(QWidget *fileListContainer = NULL);

    public slots:
      void addImages(ImageList *images);
      void removeImages(ImageList *images);
      void clear();
      void filterFileList();

    protected:
      void contextMenuEvent(QContextMenuEvent *event);

    private slots:
      void saveList();

    private:
      void save(QXmlStreamWriter &stream, QTreeWidgetItem *itemToWrite) const;

      ImageTreeWidget::ImagePosition find(const Image *image) const;
      void restoreExpandedStates(QVariant expandedStates, QTreeWidgetItem *item);
      QVariant saveExpandedStates(QTreeWidgetItem *item);

    private:
      class XmlHandler : public XmlStackedHandler {
        public:
          XmlHandler(ImageFileListWidget *fileList);
          ~XmlHandler();

          virtual bool startElement(const QString &namespaceURI, const QString &localName,
                                    const QString &qName, const QXmlAttributes &atts);
          virtual bool endElement(const QString &namespaceURI, const QString &localName,
                                  const QString &qName);

        private:
          Q_DISABLE_COPY(XmlHandler);

          ImageFileListWidget *m_fileList; 
          ImageList *m_currentImageList; 
          QTreeWidgetItem *m_currentImageListItem; 
          QTreeWidgetItem *m_currentGroup; 
      };

    private:
      QPointer<ProgressBar> m_progress; 
      QScopedPointer<PvlObject> m_serialized;

      QToolBar *m_searchToolbar; 
      QLineEdit *m_searchLineEdit;
      QLabel *m_fileCount;


      ImageTreeWidget *m_tree; 
      Directory *m_directory; 
  };
}

#endif