/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#pragma once

#include <tools/gen.hxx>

#include <vcl/window.hxx>

#include <array>

/********************** SvResizeHelper ***********************************

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

class SvResizeHelper

{

    Size        aBorder;

    tools::Rectangle   aOuter;

    short       nGrab; // -1 no Grab,  0 - 7, 8 = Move, see FillHandle...

    Point       aSelPos;

    /// Initial width/height ratio when starting drag

    std::optional<double>      mofStartingRatio;

public:

    SvResizeHelper();

    short GetGrab() const

    {

        return nGrab;

    }

    void SetBorderPixel(const Size & rBorderP)

    {

        aBorder = rBorderP;

    }

    void SetOuterRectPixel(const tools::Rectangle& rRect)

    {

        aOuter = rRect;

    }

                // Clockwise, start at upper left

    std::array<tools::Rectangle,8> FillHandleRectsPixel() const;

    std::array<tools::Rectangle,4> FillMoveRectsPixel() const;

    void        Draw(vcl::RenderContext& rRenderContext);

    void        InvalidateBorder( vcl::Window * );

    bool        SelectBegin( vcl::Window *, const Point & rPos, const bool bShiftPressed );

    short       SelectMove( vcl::Window * pWin, const Point & rPos, const bool bShiftPressed );

    Point       GetTrackPosPixel( const tools::Rectangle & rRect ) const;

    tools::Rectangle   GetTrackRectPixel( const Point & rTrackPos, const bool bShiftPressed ) const;

    void        ValidateRect( tools::Rectangle & rValidate ) const;

    bool        SelectRelease( vcl::Window *, const Point & rPos, tools::Rectangle & rOutPosSize, const bool bShiftPressed );

    void        Release( vcl::Window * pWin );

};

/********************** SvResizeWindow ***********************************

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

class VCLXHatchWindow;

class SvResizeWindow : public vcl::Window

{

    PointerStyle    m_aOldPointer;

    short           m_nMoveGrab;  // last pointer type

    SvResizeHelper  m_aResizer;

    bool        m_bActive;

    VCLXHatchWindow* m_pWrapper;

public:

    SvResizeWindow( vcl::Window* pParent, VCLXHatchWindow* pWrapper );

    void    SetHatchBorderPixel( const Size & rSize );

    void    SelectMouse( const Point & rPos, const bool bShiftPressed );

    virtual void    MouseButtonUp( const MouseEvent & rEvt ) override;

    virtual void    MouseMove( const MouseEvent & rEvt ) override;

    virtual void    MouseButtonDown( const MouseEvent & rEvt ) override;

    virtual void    KeyInput( const KeyEvent & rEvt ) override;

    virtual void    Resize() override;

    virtual void    Paint( vcl::RenderContext& /*rRenderContext*/, const tools::Rectangle & ) override;

    virtual bool    EventNotify( NotifyEvent& rNEvt ) override;

    virtual bool    PreNotify( NotifyEvent& rNEvt ) override;

};

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