levelBar.h

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/******************************************************************************
** Copyright (c) 2013 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrfGuiObjectInformationQt/vrfGuiObjectInformationQt.h>
#include <QStyledItemDelegate>
#include <QProgressBar>

namespace makVrf
{
   namespace makVrfGuiObjectInformationQt
   {
      class DT_DLL_VRFGUIOBJECTINFORMATIONQT DtLevelBar : public QProgressBar
      {
      public:
         DtLevelBar(QWidget* parent = 0);

         virtual ~DtLevelBar() override;

         virtual void setText(const QString& text);

         virtual QString text() const override;

      protected:

         QString myText;
      };

      typedef QString (*DtLevelBarTextFunction)(double level, double max);
      typedef void (*DtLevelBarValuesFunction)(int& outLevel, int& outMax, double level, double max);
      typedef DtLevelBarTextFunction DtLevelBarToolTipFunction;

      class DtLevelBarDelegate : public QStyledItemDelegate
      {
      public:

         DtLevelBarDelegate(QWidget* parent = 0);
         virtual ~DtLevelBarDelegate() override;

         virtual void paint(
            QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
         virtual QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;

         void setTextFunction(DtLevelBarTextFunction func);

         virtual void setText(DtLevelBar& bar, double level, double max) const;
         
         void setValuesFunction(DtLevelBarValuesFunction func);

         virtual void setValues(DtLevelBar& bar, double level, double max) const;

         void setToolTipFunction(DtLevelBarTextFunction func);

         virtual QWidget * createEditor(
            QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override
         { return 0; }
         virtual void setEditorData(QWidget* editor, const QModelIndex& index) const override {}
         virtual void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override
         {
         }

      protected:

         static QString defaultTextFunction(double level, double max);

         static void defaultValuesFunction(int& outLevel, int& outMax, double level, double max);

         DtLevelBarTextFunction myTextFunction;
         DtLevelBarValuesFunction myValuesFunction;
         DtLevelBarToolTipFunction myToolTipFunction;
      };
   }
}