/**
  * @RDE_HEADER@
  * Implements n QLedChars to display a line of Text/Image
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Florian Schult, SLSE, 2016-03-18
  */
#pragma once

#include <QVector>
#include <QWidget>

#ifndef QLEDLINE_EXPORT
# ifdef BUILD_STATIC_LIBRARIES
#  define QLEDLINE_EXPORT
# else
#  ifdef MAKE_QLEDLINE_LIB
#   define QLEDLINE_EXPORT Q_DECL_EXPORT
#  else
#   define QLEDLINE_EXPORT Q_DECL_IMPORT
#  endif
# endif
#endif

namespace Ui
{
  class QLedLine;
}

class QHBoxLayout;
class QLedChar;
class QTimer;
class QImage;

class QLEDLINE_EXPORT QLedLine : public QWidget
{
  Q_OBJECT

public:
  explicit QLedLine(QWidget *parent = nullptr);
  ~QLedLine();

  int  height() const;
  void setHeight(int height);

  int  charCount() const;
  void setCharCount(int charCount);

  // Returns the QSize of the first QLedChar
  QSize charSize() const;

  void setCharCountAndHeight(int charCount, int height);

  bool isTextVisible() const;
  int flashTime() const;
  QColor color() const;
  QString shownText() const;
  QString text() const;

private:
  void addChar();
  void deleteChar();

public slots:
  void setText(const QString &text);
  void setFlashing(int msecs = 0);
  void setTextVisible(bool visible = true);
  void setColor(const QColor &color);
  void clear();
  void setImage(const QImage &image);

private:
  int                 m_charCount;
  int                 m_height;
  bool                m_visible;
  QString             m_text;
  QHBoxLayout        *m_layout;
  QVector<QLedChar*>  m_chars;
  QTimer             *m_flashTimer;
  QColor              m_color;
  QImage              m_image;
};