Initial commit

Lts/Common/LtsWidgets/lts_bitfield_widget.h

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+/**
+* @RDE_HEADER@
+* Bitfield Widget for bitwise displaying and editing of quint8 values
+* Created by Christian Kaemmerer
+* $Id$
+* $HeadURL$
+* $Author$
+*/
+
+#pragma once
+
+#include <QWidget>
+#include <QMouseEvent>
+
+#include "lts_widgets_export.h"
+
+
+namespace LtsWidgets
+{
+
+class LTSWIDGETS_EXPORT LtsBitfieldWidget : public QWidget
+{
+  Q_OBJECT
+
+  Q_PROPERTY(quint8 value         READ value         WRITE setValue         NOTIFY valueChanged)
+  Q_PROPERTY(bool   isEditable    READ isEditable    WRITE setEditable      NOTIFY isEditableChanged)
+  Q_PROPERTY(bool   hasCaption    READ hasCaption    WRITE setHasCaption    NOTIFY hasCaptionChanged)
+  Q_PROPERTY(QColor onColor       READ onColor       WRITE setOnColor)
+  Q_PROPERTY(QColor offColor      READ offColor      WRITE setOffColor)
+
+public:
+  explicit LtsBitfieldWidget(QWidget *parent = nullptr, quint8 value = 0);
+
+signals:
+  void valueChanged(quint8 newValue);
+  void isEditableChanged(bool option);
+  void hasCaptionChanged(bool option);
+
+public slots:
+  /**
+   * @brief setvalue
+   * sets m_value to the given quint8
+   * @param quint8 value
+   */
+  void setValue(quint8 value);
+
+  /**
+   * @brief setIsEditable
+   * sets m_isEditable to option.
+   * true meaning the value of the widget can be changed via mousePressEvent
+   * @param bool option
+   */
+  void setEditable(bool editable);
+
+  /**
+   * @brief setHasCaption
+   * sets m_hasCaption to 0 or 1 which toggels if text should be
+   * drawn on each bitGraphic
+   * @param bool hasCaption
+   */
+  void setHasCaption(bool hasCaption);
+
+  /**
+   * @brief setOnColor
+   * sets the onColor for m_bitGraphic
+   * @param QColor onColor
+   */
+  void setOnColor(const QColor &onColor);
+
+  /**
+   * @brief setOffColor
+   * sets the offColor for m_bitGraphic
+   * @param QColor offColor
+   */
+  void setOffColor(const QColor &offColor);
+
+
+public:
+  /**
+   * @brief value
+   * get the current value
+   * @return quint8 of current value
+   */
+  quint8 value() const { return m_value; }
+
+  /**
+   * @brief isEditable
+   * get the current state of editability
+   * @return bool of editability state
+   */
+  bool isEditable() const { return m_isEditable; }
+
+  /**
+   * @brief hasCaption
+   * gets state of m_hasCaption
+   * @return bool hasCaption
+   */
+  bool hasCaption() const { return m_hasCaption; }
+
+  /**
+   * @brief onColor
+   * gets the onColor for m_bitGraphic
+   * @return QColor m_onColor
+   */
+  QColor onColor() const {return m_onColor;}
+
+  /**
+   * @brief offColor
+   * gets the offColor for m_bitGraphic
+   * @return QColor m_offColor
+   */
+  QColor offColor() const {return m_offColor;}
+
+private:
+  /**
+   * @brief mousePressEvent
+   * Checks if the click position falls within any of the bit rectangles. If there
+   * is a match the value of that bit gets flipped
+   * @param event QMouseEvent
+   */
+  void mousePressEvent(QMouseEvent *event) override;
+
+  /**
+   * @brief paintEvent
+   * Draws m_bitGraphic.Size() rectangles and depending on the bit value of m_value draw either
+   * a onColor rectangle with a offColor 1 or a offColor rectangle with a onColor 0
+   * @param pe QPaintEvent (isn't used to do anything)
+   */
+  void paintEvent(QPaintEvent *pe) override;
+
+private:
+  quint8 m_value = 0;
+
+  bool   m_isEditable = true;
+  bool   m_hasCaption = true;
+
+  QColor m_onColor  = Qt::black;
+  QColor m_offColor = Qt::white;
+};
+
+} // namespace LtsWidgets