QPlusStatusIcon.h

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/*=Plus=header=begin======================================================
  Program: Plus
  Copyright (c) Laboratory for Percutaneous Surgery. All rights reserved.
  See License.txt for details.
=========================================================Plus=header=end*/

#ifndef STATUSICON_H
#define STATUSICON_H

// Local includes
#include "PlusConfigure.h"
#include "PlusWidgetsExport.h"

// VTK includes
#include <vtkCallbackCommand.h>

// Qt includes
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QTextEdit>
#include <QWidget>
#include <QTimer>

//-----------------------------------------------------------------------------

class vtkDisplayMessageCallback : public QObject, public vtkCallbackCommand
{
  Q_OBJECT

public:
  static vtkDisplayMessageCallback* New()
  {
    vtkDisplayMessageCallback* cb = new vtkDisplayMessageCallback();
    return cb;
  }

  vtkDisplayMessageCallback()
    : QObject()
  { }

  virtual void Execute(vtkObject* caller, unsigned long eventId, void* callData);

signals:
  void AddMessage(QString);
};

//-----------------------------------------------------------------------------

class PlusWidgetsExport QPlusStatusIcon : public QWidget
{
  Q_OBJECT

public:
  QPlusStatusIcon(QWidget* aParent = 0, Qt::WindowFlags aFlags = 0);

  ~QPlusStatusIcon();

  void SetMaxMessageCount(int count);

protected:
  bool eventFilter(QObject* obj, QEvent* ev);

  void resizeEvent(QResizeEvent* event);

  PlusStatus ConstructMessageListWidget();

  void ResetIconState();

  void ParseMessage(QString& aInputString);

  void ApplyFilter();

protected slots:
  void CreateCustomContextMenu(const QPoint& aPoint);

  void ClearMessageList();

  void ClearFilterButtonClicked();

  void FilterLineEditEdited(const QString&);

  void ApplyFilterTimerFired();

public slots:
  void AddMessage(QString aInputString);

protected:
  int           m_Level;

  QLabel*       m_DotLabel;

  QFrame*       m_MessageListFrame;

  QTextEdit*    m_MessageTextEdit;

  QLineEdit*    m_FilterLineEdit;
  QPushButton*  m_ClearFilterButton;
  QTimer        m_FilterInputTimer;

  unsigned long m_DisplayMessageCallbackTag;
  unsigned long m_DisplayWideMessageCallbackTag;

  std::vector<QString> m_MessageLog;

  /* Allow a maximum number of messages to be logged */
  int m_MaxMessageCount;
};

#endif