/////////////////////////////////////////////////////////////////////////////
//    WinMerge:  an interactive diff/merge utility
//    Copyright (C) 1997  Dean P. Grimm
//
//    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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
/////////////////////////////////////////////////////////////////////////////
/** 
 * @file  ImgMergeFrm.h
 *
 * @brief interface of the CImgMergeFrame class
 *
 */
#pragma once

#include "EditorFilepathBar.h"
#include "PathContext.h"
#include "DiffFileInfo.h"
#include "IMergeDoc.h"
#include "WinIMergeLib.h"
#include "LocationBar.h"
#include "FileLocation.h"

class CDirDoc;

/** 
 * @brief Frame class for file compare, handles panes, statusbar etc.
 */
class CImgMergeFrame : public CMDIChildWnd, public IMergeDoc
{
	private:
	enum BUFFERTYPE
	{
		BUFFER_NORMAL = 0, /**< Normal, file loaded from disk */
		BUFFER_NORMAL_NAMED, /**< Normal, description given */
		BUFFER_UNNAMED, /**< Empty, created buffer */
		BUFFER_UNNAMED_SAVED, /**< Empty buffer saved with filename */
	};

	using CMDIChildWnd::Create;

	DECLARE_DYNCREATE(CImgMergeFrame)
public:
	CImgMergeFrame();


// Operations
public:
	bool OpenDocs(int nFiles, const FileLocation fileloc[], const bool bRO[], const String strDesc[], CMDIFrameWnd *pParent);
	void MoveOnLoad(int nPane = -1, int nLineIndex = -1);
	void ChangeFile(int pane, const String& path);
	void SetDirDoc(CDirDoc * pDirDoc);
	void UpdateResources();
	bool CloseNow();
	void DirDocClosing(CDirDoc * pDirDoc) { m_pDirDoc = nullptr; }
	void SetSharedMenu(HMENU hMenu) { m_hMenuShared = hMenu; };
	void SetLastCompareResult(int nResult);
	void UpdateLastCompareResult();
	void UpdateAutoPaneResize();
	void UpdateSplitter();
	bool GenerateReport(const String& sFileName) const;
	void DoAutoMerge(int dstPane);
	bool IsModified() const;
	bool IsFileChangedOnDisk(int pane) const;
	void CheckFileChanged(void);
	String GetDescription(int pane) const { return m_strDesc[pane]; }
	static bool IsLoadable();

// Attributes
protected:
	CEditorFilePathBar m_wndFilePathBar;
	CStatusBar m_wndStatusBar[3];
// Overrides
public:
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CImgMergeFrame)
	public:
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	virtual BOOL OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext);
	virtual BOOL DestroyWindow();
	virtual BOOL PreTranslateMessage(MSG *);
	static CMenu menu;

	protected:
	//}}AFX_VIRTUAL

// Implementation
private:
	bool EnsureValidDockState(CDockState& state);
	void LoadOptions();
	void SaveOptions();
	void SavePosition();
	virtual ~CImgMergeFrame();
	void CreateImgWndStatusBar(CStatusBar &, CWnd *);
// Generated message map functions
private:
	int UpdateDiffItem(CDirDoc * pDirDoc);
	void UpdateHeaderSizes();
	void UpdateHeaderPath(int pane);
	void SetTitle(LPCTSTR lpszTitle);
	bool DoFileSave(int pane);
	bool DoFileSaveAs(int pane);
	bool PromptAndSaveIfNeeded(bool bAllowCancel);
	bool MergeModeKeyDown(MSG* pMsg);
	static void OnChildPaneEvent(const IImgMergeWindow::Event& evt);
	void OnDropFiles(int pane, const std::vector<String>& files);
	int m_nLastSplitPos[2];
	HICON m_hIdentical;
	HICON m_hDifferent;
	CLocationBar m_wndLocationBar;
	IImgMergeWindow *m_pImgMergeWindow;
	IImgToolWindow *m_pImgToolWindow;
	PathContext m_filePaths;
	String m_strDesc[3];
	BUFFERTYPE m_nBufferType[3];
	DiffFileInfo m_fileInfo[3];
	bool m_bRO[3];
	bool m_bAutoMerged;
	CDirDoc *m_pDirDoc;

	//{{AFX_MSG(CImgMergeFrame)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg void OnMDIActivate(BOOL bActivate, CWnd* pActivateWnd, CWnd* pDeactivateWnd);
	afx_msg void OnGetMinMaxInfo(MINMAXINFO* lpMMI);
	afx_msg void OnClose();
	afx_msg void OnFileSave();
	afx_msg void OnUpdateFileSave(CCmdUI* pCmdUI);
	afx_msg void OnFileSaveLeft();
	afx_msg void OnFileSaveMiddle();
	afx_msg void OnUpdateFileSaveMiddle(CCmdUI* pCmdUI);
	afx_msg void OnFileSaveRight();
	afx_msg void OnFileSaveAsLeft();
	afx_msg void OnFileSaveAsMiddle();
	afx_msg void OnUpdateFileSaveAsMiddle(CCmdUI* pCmdUI);
	afx_msg void OnFileSaveAsRight();
	afx_msg void OnLeftReadOnly();
	afx_msg void OnUpdateLeftReadOnly(CCmdUI* pCmdUI);
	afx_msg void OnMiddleReadOnly();
	afx_msg void OnUpdateMiddleReadOnly(CCmdUI* pCmdUI);
	afx_msg void OnRightReadOnly();
	afx_msg void OnUpdateRightReadOnly(CCmdUI* pCmdUI);
	afx_msg void OnFileReload();
	afx_msg void OnFileClose();
	afx_msg void OnFileRecompareAs(UINT nId);
	afx_msg void OnUpdateFileRecompareAs(CCmdUI* pCmdUI);
	afx_msg void OnWindowChangePane();
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg void OnIdleUpdateCmdUI();
	afx_msg void OnUpdateStatusNum(CCmdUI* pCmdUI);
	afx_msg LRESULT OnStorePaneSizes(WPARAM wParam, LPARAM lParam);
	afx_msg void OnEditUndo();
	afx_msg void OnUpdateEditUndo(CCmdUI* pCmdUI);
	afx_msg void OnEditRedo();
	afx_msg void OnUpdateEditRedo(CCmdUI* pCmdUI);
	afx_msg void OnViewZoomIn();
	afx_msg void OnViewZoomOut();
	afx_msg void OnViewZoomNormal();
	afx_msg void OnViewSplitVertically();
	afx_msg void OnUpdateViewSplitVertically(CCmdUI* pCmdUI);
	afx_msg void OnFirstdiff();
	afx_msg void OnUpdateFirstdiff(CCmdUI* pCmdUI);
	afx_msg void OnLastdiff();
	afx_msg void OnUpdateLastdiff(CCmdUI* pCmdUI);
	afx_msg void OnNextdiff();
	afx_msg void OnUpdateNextdiff(CCmdUI* pCmdUI);
	afx_msg void OnPrevdiff();
	afx_msg void OnUpdatePrevdiff(CCmdUI* pCmdUI);
	afx_msg void OnNextConflict();
	afx_msg void OnUpdateNextConflict(CCmdUI* pCmdUI);
	afx_msg void OnPrevConflict();
	afx_msg void OnUpdatePrevConflict(CCmdUI* pCmdUI);
	afx_msg void OnX2Y(int srcPane, int dstPane);
	afx_msg void OnUpdateX2Y(CCmdUI* pCmdUI, int srcPane, int dstPane);
	afx_msg void OnL2r();
	afx_msg void OnUpdateL2r(CCmdUI* pCmdUI);
	afx_msg void OnR2l();
	afx_msg void OnUpdateR2l(CCmdUI* pCmdUI);
	afx_msg void OnCopyFromLeft();
	afx_msg void OnUpdateCopyFromLeft(CCmdUI* pCmdUI);
	afx_msg void OnCopyFromRight();
	afx_msg void OnUpdateCopyFromRight(CCmdUI* pCmdUI);
	afx_msg void OnAllLeft();
	afx_msg void OnUpdateAllLeft(CCmdUI* pCmdUI);
	afx_msg void OnAllRight();
	afx_msg void OnUpdateAllRight(CCmdUI* pCmdUI);
	afx_msg void OnAutoMerge();
	afx_msg void OnUpdateAutoMerge(CCmdUI* pCmdUI);
	afx_msg void OnImgViewDifferences();
	afx_msg void OnUpdateImgViewDifferences(CCmdUI* pCmdUI);
	afx_msg void OnImgZoom(UINT nId);
	afx_msg void OnUpdateImgZoom(CCmdUI* pCmdUI);
	afx_msg void OnImgOverlayMode(UINT nId);
	afx_msg void OnUpdateImgOverlayMode(CCmdUI* pCmdUI);
	afx_msg void OnImgDraggingMode(UINT nId);
	afx_msg void OnUpdateImgDraggingMode(CCmdUI* pCmdUI);
	afx_msg void OnImgDiffBlockSize(UINT nId);
	afx_msg void OnUpdateImgDiffBlockSize(CCmdUI* pCmdUI);
	afx_msg void OnImgThreshold(UINT nId);
	afx_msg void OnUpdateImgThreshold(CCmdUI* pCmdUI);
	afx_msg void OnImgPrevPage();
	afx_msg void OnUpdateImgPrevPage(CCmdUI* pCmdUI);
	afx_msg void OnImgNextPage();
	afx_msg void OnUpdateImgNextPage(CCmdUI* pCmdUI);
	afx_msg void OnImgCurPanePrevPage();
	afx_msg void OnUpdateImgCurPanePrevPage(CCmdUI* pCmdUI);
	afx_msg void OnImgCurPaneNextPage();
	afx_msg void OnUpdateImgCurPaneNextPage(CCmdUI* pCmdUI);
	afx_msg void OnImgUseBackColor();
	afx_msg void OnUpdateImgUseBackColor(CCmdUI* pCmdUI);
	afx_msg void OnToolsGenerateReport();
	afx_msg void OnRefresh();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};
