/* AbiWord
 * Copyright (C) 1998-2000 AbiSource, Inc.
 * Copyright (C) 2002
 *
 * 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; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
 * 02111-1307, USA.
 */

#ifndef AP_WIN32FRAMEIMPL_H
#define AP_WIN32FRAMEIMPL_H

#include "ap_Frame.h"
#include "xap_Win32FrameImpl.h"
#include "ap_FrameData.h"
#include "gr_Win32Graphics.h"
#include <wchar.h>

class AP_Win32Frame;

class ABI_EXPORT AP_Win32FrameImpl : public XAP_Win32FrameImpl
{
 public:
	AP_Win32FrameImpl(AP_Frame *pFrame); 
	~AP_Win32FrameImpl(void);
	virtual XAP_FrameImpl * createInstance(XAP_Frame *pFrame);

	virtual UT_RGBColor getColorSelBackground () const;

	HWND						getHwndDocument(void)  {  return m_hwndDocument;  }
	
	GR_Win32Graphics *			createDocWndGraphics(void);
	
 protected:
	friend class AP_Win32Frame;

	virtual void _initialize(void);

	virtual void _refillToolbarsInFrameData();
	virtual void _rebuildToolbar(UT_uint32 ibar);
	virtual void _bindToolbars(AV_View *pView);

	virtual void				_toggleBar(UT_uint32 iBarNb, bool bBarOn);

	void						_showOrHideToolbars(void);
	void						_showOrHideStatusbar(void);

	virtual void				_hideMenuScroll(bool bHideMenuScroll);

	virtual void 				_toggleTopRuler(AP_Win32Frame *pFrame, bool bRulerOn);
	virtual void 				_toggleLeftRuler(AP_Win32Frame *pFrame, bool bRulerOn);

	void _translateDocumentToScreen(UT_sint32 &x, UT_sint32 &y);

	virtual void 				_setXScrollRange(AP_FrameData * pData, AV_View *pView);
	virtual void 				_setYScrollRange(AP_FrameData * pData, AV_View *pView);
	virtual void 				_scrollFuncX(UT_sint32 xoff, UT_sint32 xlimit);
	virtual void 				_scrollFuncY(UT_sint32 yoff, UT_sint32 ylimit);

	static bool _RegisterClass(XAP_Win32App * app);


	HWND						_getHwndContainer(void) {  return m_hwndContainer; }
	HWND						_getHwndTopRuler(void)  {  return m_hwndTopRuler;  }
	HWND						_getHwndLeftRuler(void) {  return m_hwndLeftRuler; }
	//	HWND					_getHwndDocument(void)  {  return m_hwndDocument;  } now public
	HWND						_getHwndHScroll(void)   {  return m_hWndHScroll;   }
	HWND						_getHwndVScroll(void)   {  return m_hWndVScroll;   }

	void						_updateContainerWindow(void) { UpdateWindow(_getHwndContainer()); }

	void						_setVerticalScrollInfo(const SCROLLINFO * psi);
	void						_getVerticalScrollInfo(SCROLLINFO * psi);

	//void						_createRulers(XAP_Frame *pFrame) {  _createTopRuler(pFrame); _createLeftRuler(pFrame);  }

	HWND						_createDocumentWindow(XAP_Frame *pFrame, HWND hwndParent,
													  UT_uint32 iLeft, UT_uint32 iTop,
													  UT_uint32 iWidth, UT_uint32 iHeight);
	HWND						_createStatusBarWindow(XAP_Frame *pFrame, HWND hwndParent,
													   UT_uint32 iLeft, UT_uint32 iTop,
													   UT_uint32 iWidth);

	// helper methods for helper methods for _showDocument (meta-helper-methods?) :-)
	void						_getDocumentArea(RECT &r);
	virtual 					UT_sint32 _getDocumentAreaWidth(void);
	virtual 					UT_sint32 _getDocumentAreaHeight(void);

/***************************************/

 private:
	void						_createTopRuler(XAP_Frame *pFrame);
	void						_createLeftRuler(XAP_Frame *pFrame);
	void						_getRulerSizes(AP_FrameData * pData, int &yTopRulerHeight, int &xLeftRulerWidth);
	void						_onSize(AP_FrameData * pData, int nWidth, int nHeight);

	static int 					_getMouseWheelLines();

	void						_startTracking(UT_sint32 x, UT_sint32 y);
	void						_endTracking(UT_sint32 x, UT_sint32 y);
	void						_track(UT_sint32 x, UT_sint32 y);
	bool						_isTracking() const { return m_bMouseWheelTrack; }

	/** window callback functions **/
	static LRESULT CALLBACK			_ContainerWndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
	static LRESULT CALLBACK			_DocumentWndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
	//static LRESULT CALLBACK		_LeftRulerWndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);

 private:
	HWND						m_hwndContainer;
	HWND						m_hwndTopRuler;
	HWND						m_hwndLeftRuler;
	HWND						m_hwndDocument;	/* the actual document window */

	HWND						m_hWndHScroll;
	HWND						m_hWndVScroll;
	HWND						m_hWndGripperHack;

	UT_uint32					m_vScale; /* vertical scroll scaling to get around 16-bit scrollbar problems */

	bool						m_bMouseWheelTrack;
	UT_sint32					m_startMouseWheelY;
	UT_sint32					m_startScrollPosition;
	bool						m_bMouseActivateReceived;

	#define MAXDOCWNDCLSNMSIZE 256
	#define MAXCNTWNDCLSNMSIZE 256
	static wchar_t s_ContainerWndClassName[MAXCNTWNDCLSNMSIZE];
	static wchar_t s_DocumentWndClassName[MAXDOCWNDCLSNMSIZE];
};

#endif /* AP_WIN32FRAMEIMPL_H */
