include/vrfGuiCoreQt/DtVrfHierarchyPage.h

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/*******************************************************************************
** Copyright (c) 2009 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: DtVrfHierarchyPage.h,v $ $Revision: 1.1 $ $State: Exp $
*******************************************************************************/



#pragma once

#include <vrvUtil/signalslib.h>
#include <vrfGuiCoreQt/vrfGuiCoreQt.h>
#include <vrfGuiCoreQt/DtVrfObjectListPanelPageCreator.h>
#include <vrfGuiCoreQt/DtVrfObjectListViewItem.h>
#include <vrvCoreQt/DtPage.h>
#include <QtGui/QPushButton>
#include <QtGui/QPixmap>

#include <boost/signal.hpp>

class QVBoxLayout;
class DtTreeWidget;
class QCheckBox;

namespace makVrf
{
   class DtVrfHierarchyPageLogic;
   class DtVrfTreeWidget;

   class DT_DLL_VRFGUICOREQT DtScrollButtonArea : public QWidget
   {
   public:
      DtScrollButtonArea(QWidget* parent);

      virtual void scrollContentsBy(int x);

      QWidget* widget() { return myCanvas; };

      boost::signal<void (const QStringList&)> signal_deparent;

   protected:
      virtual void paintEvent(QPaintEvent* e);
      virtual void resizeEvent(QResizeEvent* e);
      virtual void dragEnterEvent(QDragEnterEvent *event);
      virtual void dropEvent(QDropEvent *e);

   protected:
      QWidget* myCanvas;
   };


   class DT_DLL_VRFGUICOREQT DtExpandCollapseButton : public QPushButton
   {
      Q_OBJECT

   public:

      DtExpandCollapseButton(QWidget *parent = NULL);
      virtual ~DtExpandCollapseButton();
      
      virtual void setExpandPixmap(QPixmap pix);
      virtual void setCollapsePixmap(QPixmap pix);
      virtual void setLevel(int level);
      virtual int level() const;
      virtual void setIsExpand(bool value);
      virtual bool isExpand() const;

   signals:

      void expandLevelClicked(unsigned int);
      void collapseLevelClicked(unsigned int);

   protected slots:

      virtual void buttonClicked();

   protected:

      virtual void paintEvent(QPaintEvent*);

   protected:
      QPixmap myExpandPixmap;
      QPixmap myCollapsePixmap;
      bool myIsExpand;
      int myLevel;
   };

   class DT_DLL_VRFGUICOREQT DtVrfHierarchyPage : public makVrv::DtPage
   {
      Q_OBJECT

   public:

      virtual ~DtVrfHierarchyPage();

      DtVrfTreeWidget* echelon();      

      virtual void selectObjects(const std::vector<DtVrfObjectListViewItem::DtVrfObjectState>);

      virtual std::vector<DtVrfObjectListViewItem::DtVrfObjectState> selectedObjects() const;

      virtual DtExpandCollapseButton* createExpandCollapseButton(unsigned int, int numButtons);

   protected slots:

      virtual void onRightClickOnItem(QTreeWidgetItem*, QMouseEvent*, int col);

      virtual void onItemSelected();

      virtual void onScrollRangeChanged(int);

      virtual void onViewItemExpanded(QTreeWidgetItem*);

      virtual void onViewItemCollapsed(QTreeWidgetItem*);

      virtual void onExpandToLevel(unsigned int);

      virtual void onCollapseToLevel(unsigned int);

      virtual DtVrfTreeWidget* createHierarchyList() = 0;

   protected:
      
      DtVrfHierarchyPage( makVrv::DtDe& de, QWidget* parent = 0, Qt::WindowFlags flags = 0);

      virtual void createAndInitializeLogic();
      virtual DtVrfHierarchyPageLogic* createLogic() = 0;

      virtual void setupUi(QWidget* p);
      virtual DtScrollButtonArea* createCollapseButtonConainer(QWidget* parent);

      virtual void slot_onDeParent(const QStringList&);
      virtual void slot_onReParent(const QStringList& children, makVrv::DtUniqueID parentId);

   protected:
      DtVrfHierarchyPageLogic*  myLogic;
      
   public:
      QVBoxLayout*         myMasterLayout;
      DtVrfTreeWidget*     myEchelon;
      DtScrollButtonArea*  myCollapseButtonWidget;
      QPixmap              myPlusPixmap;
      QPixmap              myMinusPixmap;
      QCheckBox*           myShowEchelonId;
   };
}