BasicTreeView.h++

Go to the documentation of this file.

#ifndef __libquark_gui_BasicTreeView_hxx
#define __libquark_gui_BasicTreeView_hxx

#include <QList>
#include <QResizeEvent>
#include <QTimer>
#include <QTreeView>

#include <quark/Quark.h++>
#include <quark/BasicTreeModel.h++>
#include <quark/BasicFilterTreeModel.h++>

namespace quark {
namespace gui {

class ActivityIndicator;

class LIBQUARK_API  BasicTreeView : public QTreeView
{
  Q_OBJECT;

  public:

  explicit BasicTreeView(QWidget *parent = NULL);
  virtual ~BasicTreeView();

  template<class T>
  void setModel(BasicTreeModel<T> *model)
  {
    QTreeView::setModel(model);
    _modelBase = model;
    applyFieldWidths();
  }

  template<class T>
  void setModel(BasicFilterTreeModel<T> *model)
  {
    QTreeView::setModel(model);
    _modelBase = model;
    applyFieldWidths();
  }

  void setPreference(const QString &preference);

  public slots:

  void restoreState();
  void saveState() const;

  // Toggles the "loading" state; when on, an animated busy indicator
  // appears centered over the content area.
  void setLoading(bool loading);

  void resizeColumnsToContents();

  protected:

  virtual bool event(QEvent *event);
  virtual void resizeEvent(QResizeEvent *event);

  private:

  void applyFieldWidths();

  BasicTreeModelBase *_modelBase;
  ActivityIndicator *_activityIndicator;
  QList<int> _fieldPreferredWidths;
  QString _preference;
  mutable QTimer _saveTimer;
  mutable qint64 _lastStateChange;
};

} // namespace gui
} // namespace quark

#endif // __libquark_gui_BasicTreeView_hxx