// TortoiseMerge - a Diff/Patch program

// Copyright (C) 2006-2010, 2012, 2015, 2020-2021 - TortoiseSVN

// 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,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#pragma once
#include "registry.h"

class CMainFrame;
class CBaseView;

/**
 * \ingroup TortoiseMerge
 *
 * A Toolbar showing the differences in the views. The Toolbar
 * is best attached to the left of the mainframe. The Toolbar
 * also scrolls the views to the location the user clicks
 * on the bar.
 */
class CLocatorBar : public CPaneDialog
{
    DECLARE_DYNAMIC(CLocatorBar)

public:
    CLocatorBar();
    ~CLocatorBar() override;
    // ReSharper disable once CppHidingFunction
    BOOL Create(CWnd* pParentWnd, UINT nIDTemplate, UINT nStyle, UINT nID)
    {
        BOOL bRet           = CPaneDialog::Create(pParentWnd, nIDTemplate, nStyle, nID);
        m_dwControlBarStyle = 0; // can't float, resize, close, slide
        CRect rc;
        GetClientRect(&rc);
        m_minWidth = rc.Width();
        return bRet;
    }

    void DocumentUpdated();

protected:
    CSize           CalcFixedLayout(BOOL bStretch, BOOL bHorz) override;
    afx_msg void    OnPaint();
    afx_msg void    OnSize(UINT nType, int cx, int cy);
    afx_msg BOOL    OnEraseBkgnd(CDC* pDC);
    afx_msg void    OnLButtonDown(UINT nFlags, CPoint point);
    afx_msg void    OnMouseMove(UINT nFlags, CPoint point);
    afx_msg void    OnLButtonUp(UINT nFlags, CPoint point);
    afx_msg LRESULT OnMouseLeave(WPARAM wParam, LPARAM lParam);
    void            ScrollOnMouseMove(const CPoint& point) const;
    static void     ScrollViewToLine(CBaseView* view, int nLine);
    void            PaintView(CDC& cacheDC, CBaseView* view, CDWordArray& indents, CDWordArray& states,
                              const CRect& rect, int stripeIndex) const;
    void            DrawFishEye(CDC& dc, const CRect& rect) const;
    static void     DocumentUpdated(CBaseView* view, CDWordArray& indents, CDWordArray& states);
    void            SetTheme(bool bDark);

    CBitmap* m_pCacheBitmap;

    int         m_minWidth;
    int         m_nLines;
    CPoint      m_mousePos;
    CDWordArray m_arLeftIdent;
    CDWordArray m_arLeftState;
    CDWordArray m_arRightIdent;
    CDWordArray m_arRightState;
    CDWordArray m_arBottomIdent;
    CDWordArray m_arBottomState;

    CRegDWORD m_regUseFishEye;
    bool      m_bDark;
    int       m_themeCallbackId;
    DECLARE_MESSAGE_MAP()
public:
    CMainFrame* m_pMainFrm;
};