//----------------------------------------------------------------------------
// $Id: QtRpl/RplBlockDlg.hpp 2017/07/23 16:20:44 philw $
// Editor dialog for RplBlock objects (Rule, Goal, Method)
//----------------------------------------------------------------------------

#pragma once
#ifndef RplViewerDlgINCLUDED
#define RplViewerDlgINCLUDED

#ifndef RplBaseDlgINCLUDED
#include "RplBaseDlg.hpp"
#endif

#ifndef RplBlockINCLUDED
#include "RplBlock.hpp"
#endif

#include "RplObjPanel.hpp"

class QTabBar;
class QVBoxLayout;

class Ui_RplViewerDlgWidgets;
class RplBlockPanel;
class RplFunctionPanel;

#include <QPushButton>
#include <QTabBar>

//--------------------------------------------------------------------------
//+class
//
// CLASS: 
//   RplViewerDlg
//
// DESCRIPTION: 
//   A tabbed view for hosting RplBlockPanels and RplFunctionPanels
//
//--------------------------------------------------------------------------
class RplViewerDlg : public RplBaseDlg
{
   Q_OBJECT

public: 
   class RplTabBar;              // : public QTabBar

 private:
   Ui_RplViewerDlgWidgets*  _ui;
   QList<RplObjPanel*>  _impPanels; // current tab list
   RplObjPanel*         _activePanel;
   RplObj*                  _activeRplObj;

   // Tab bar
   RplTabBar*    _rplTabBar;
   QWidget*      _rplTabWidgets;
   QPushButton*  _rplTabMenuBut;
   QActionGroup* _rplTabMenuActionGroup;
   bool          _rebuildRplTabBar_inProgress;

   QList<RplObj*> _viewerRplList; //Robynn todo: look into how this will work.
   QString _rplTabCtx_objName;  // context menu, clicked tab RplObj name
   

 public:
   RplViewerDlg(BaseRWDlg* parent, RplObj*);
   ~RplViewerDlg();

   virtual bool update()           override;
   virtual bool updateDescr()      override;
   virtual bool updateNotes()      override;
   virtual bool updateLoadStatus() override;
   virtual bool rebuild()          override;

   virtual void selectRplStatement(RplStatement* statement) override;
   virtual void showDescription(bool) override;
   virtual void showNotes(bool)       override;
   virtual void selectStringInDescription(
       const Rpl::SearchSpec& searchSpec) override;
   virtual void selectStringInNotes(
       const Rpl::SearchSpec& searchSpec) override;

   const QList<RplObj*>& viewerObjListRef() const { return _viewerRplList; }
   void addRplObject(RplObj*);
   void addRplObjects(const QList<RplObj*>&);
   void removeRplObject(RplObj*, bool deleteWhenEmpty);
   void selectRplObjTab(RplObj*);

public slots:
   virtual void updateEditActions()   override;
   virtual void scrollToDebugCursor() override;

public:
    virtual RplObj* getRplObj() const override;
    virtual void updateExternalDocButton() override;

private:
    void buildQtWidgets();
    void sensitizeMenus();
    virtual QString nameEditorText() const override;
    RplObjPanel* getActiveFrame();
    void deleteInternals();


    void updateWindowTitle();
    void rebuildRplTabBar();
//    void updateRplTabIcons();
    void updateRplTabStyles();
    void installRplObj(RplObj*, bool force = false);
    RplObj* installedRplObj() const { return _activeRplObj; }
    RplObj* locateRplTabBarRplObj(int inx) const; // Robynn todo: is this applicable?
    int rplTabBarInxForRplObj(const RplObj*) const;

//    
//private slots:
//    void rplTabBar_currentChanged(int index);
//    void rplTabBar_tabBarLeftClicked(int index);
//    void rplTabBar_tabBarDoubleClicked(int index);
//    void rplTabBar_tabCloseRequested(int index);
//    void rplTabBar_tabMoved(int from, int to);
//    void rplTabBar_customContextMenuRequested(const QPoint& pos);
//    void rplTabMenuBut_clicked();
//    void rplTabMenuActionGroup_triggered(QAction*);
};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------

// *********************************************************
// ***  class RplViewerDlg::RplTabBar : public QTabBar  ***
// *********************************************************

class RplViewerDlg::RplTabBar : public QTabBar
{
    Q_OBJECT

private:
    RplViewerDlg* _parentDlg;
    bool _dragRplTabActive;  // drag from tab, mouse button still down
    bool _dragRplTabArmed;   // active drag of sufficient tear-off distance.
    bool _dragRplTabOverrideCursorSet;
    QPoint _dragRplTabStartPos;
    QString _dragRplTabName;
    QCursor _dragRplTabCursor;

public:
    RplTabBar(RplViewerDlg* parentDlg);
    virtual ~RplTabBar();

private:
    bool tearArmedAtPos(const QPoint& pos);
    void updateOverrideCursor();

protected:
    // virtual from QTabBar
    virtual void mousePressEvent(QMouseEvent*) override;
    virtual void mouseMoveEvent(QMouseEvent*) override;
    virtual void mouseReleaseEvent(QMouseEvent*) override;

signals:
    void tabBarLeftClicked(int tabIndex);
    void tabBarRightClicked(int tabIndex);
};
#endif // RplViewerDlgINCLUDED
//--- (end RplViewerDlg.hpp) ---