/*
 * FieldView.h
 *
 * Copyright (C) 1999 Stephen F. White
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program (see the file "COPYING" for details); if 
 * not, write to the Free Software Foundation, Inc., 675 Mass Ave, 
 * Cambridge, MA 02139, USA.
 */

#ifndef _FIELD_VIEW_H
#define _FIELD_VIEW_H

#ifndef _ARRAY_H
#include "Array.h"
#endif

#ifndef _SCENE_VIEW_H
#include "SceneView.h"
#endif

#ifndef _RECT_H
#include "Rect.h"
#endif

#ifndef _POINT_H
#include "Point.h"
#endif

class FieldViewItem;
class DuneDoc;
class Node;
class FieldValue;
class Hint;

#include "swttypedef.h"

class FieldView : public SceneView
{
public:
			FieldView(Scene *scene, SWND wnd);
	virtual        ~FieldView();

public:

	void            DeleteView();
	void            DeleteFields();

	virtual void	OnUpdate(SceneView *sender, int type, Hint *hint);
	virtual void	OnDraw(int x, int y, int width, int height);
	virtual void	OnSize(int width, int height);
	virtual void	OnLButtonDown(int x, int y, int modifiers);
	virtual void	OnLButtonUp(int x, int y, int modifiers);
	virtual void	OnMouseMove(int x, int y, int modifiers);

	void		OnHeaderChange(int pos, int width);

	int		GetColumnWidth(int column) const;
	SFONT		GetUFont() const     { return _uFont; }
	int		GetFloatWidth() const	{ return _floatWidth; }
	
	int		GetItemWidth() const { return GetColumnWidth(1); }
	int		GetItemHeight() const { return _itemHeight; }

//	virtual BOOL PreTranslateMessage(MSG* pMsg);
//	virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam);

	void		DrawItem(int item, SDC dc);
	void		StartEditing();
	void		StopEditing();
	void		AbortEditing();
	void		StartTracking();
	void		StopTracking();
	void		SetColumnWidth(int column, int width);
	void		GetItemRect(int i, Rect *r);
	void		GetFieldRect(int field, int index, Rect *r);
	int		HitTest(int x, int y);
	void		MoveControls(int left);
	void		UpdateAll();
	void		SelectField(int field) {_selectedField=field;}
	int		GetSelectedField(void) {return _selectedField;}
	void		RefreshItemList();
	void		ChangeValue(FieldViewItem *item, FieldValue *newValue);
	void		UpdateBars();
        void            DeleteLastSelection(void);

//	void OnItemclick(NMHDR* pNMHDR, LRESULT* pResult);
//	void OnLButtonDblClk(UINT nFlags, CPoint point);
//	void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
//	void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
//	void OnButtonClicked(UINT id);
//	void OnButtonKillfocus(UINT id);

        void            UpdateTrackingCursor(int x, int y);
protected:

	enum		FVState { NORMAL, WAIT_EDIT, WAIT_TRACK, TRACKING, EDITING };

	SWND		_window;
	SWND		_scroller;
	int		_lastXPosition;
	int		_lastYPosition;
	int		_maxYPosition;

	int		_autoScrolling;
	int		_autoScrollPY;
	int		_autoScrollDY;

	Node	       *_selectedNode;
	int		_selectedField;
	int		_selectedIndex;	// for MField's
	int		_selectedOffset;
	int		_selectedItem;
	SWND		_edit;
	SHEADER		_header;
	SBITMAP		_halftoneBitmap;
	int		_itemHeight;
	int		_height;
	int		_width;
	int		_floatWidth;
	int		_pageHeight;
	SFONT		_uFont;
	int		_scrollY;		// in lines
	float		_scrollRatio;

	FVState		_state;

	Point		_trackPoint;
	FieldValue     *_trackValue;

	Array<FieldViewItem *>  _items;
	Array<FieldViewItem *>	_fields;

	bool		_fieldViewActive;
        bool            _isRoot;

	SCURSOR		_cursorArrow;
	SCURSOR		_cursorHMove;
 
        bool            _cursorIsArrow;
};

#endif // !_FIELD_VIEW_H