/* -*- 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 .

 */

#include <svx/svdview.hxx>

#include <svx/svddrag.hxx>

SdrDragStatUserData::~SdrDragStatUserData() = default;

SdrDragStat::~SdrDragStat()

{

}

void SdrDragStat::Clear()

{

    mpUserData.reset();

    mvPnts.clear();

    mvPnts.emplace_back();

}

void SdrDragStat::Reset()

{

    m_pView=nullptr;

    m_pPageView=nullptr;

    m_bShown=false;

    m_nMinMov=1;

    m_bMinMoved=false;

    m_bHorFixed=false;

    m_bVerFixed=false;

    m_bWantNoSnap=false;

    m_pHdl=nullptr;

    m_bOrtho4=false;

    m_bOrtho8=false;

    m_pDragMethod=nullptr;

    m_bEndDragChangesAttributes=false;

    m_bEndDragChangesGeoAndAttributes=false;

    mbEndDragChangesLayout=false;

    m_bMouseIsUp=false;

    Clear();

    m_aActionRect=tools::Rectangle();

}

void SdrDragStat::Reset(const Point& rPnt)

{

    Reset();

    mvPnts[0]=rPnt;

    m_aPos0=rPnt;

    m_aRealNow=rPnt;

}

void SdrDragStat::NextMove(const Point& rPnt)

{

    m_aPos0=mvPnts.back();

    m_aRealNow=rPnt;

    mvPnts.back()=rPnt;

}

void SdrDragStat::NextPoint()

{

    mvPnts.emplace_back(m_aRealNow);

}

void SdrDragStat::PrevPoint()

{

    if (mvPnts.size()>1) { // one has to remain at all times

        mvPnts.erase(mvPnts.begin()+mvPnts.size()-2);

        mvPnts.back() = m_aRealNow;

    }

}

bool SdrDragStat::CheckMinMoved(const Point& rPnt)

{

    if (!m_bMinMoved) {

        tools::Long dx=rPnt.X()-GetPrev().X(); if (dx<0) dx=-dx;

        tools::Long dy=rPnt.Y()-GetPrev().Y(); if (dy<0) dy=-dy;

        if (dx>=tools::Long(m_nMinMov) || dy>=tools::Long(m_nMinMov))

            m_bMinMoved=true;

    }

    return m_bMinMoved;

}

double SdrDragStat::GetXFact() const

{

    tools::Long nMul=mvPnts.back().X()-m_aRef1.X();

    tools::Long nDiv=GetPrev().X()-m_aRef1.X();

    if (nDiv==0) nDiv=1;

    if (m_bHorFixed) { nMul=1; nDiv=1; }

    return double(nMul) / nDiv;

}

double SdrDragStat::GetYFact() const

{

    tools::Long nMul=mvPnts.back().Y()-m_aRef1.Y();

    tools::Long nDiv=GetPrev().Y()-m_aRef1.Y();

    if (nDiv==0) nDiv=1;

    if (m_bVerFixed) { nMul=1; nDiv=1; }

    return double(nMul) / nDiv;

}

void SdrDragStat::TakeCreateRect(tools::Rectangle& rRect) const

{

    rRect=tools::Rectangle(mvPnts[0], mvPnts.back());

    if (mvPnts.size()>1) {

        Point aBtmRgt(mvPnts[1]);

        rRect.SetRight(aBtmRgt.X() );

        rRect.SetBottom(aBtmRgt.Y() );

    }

    if (m_pView!=nullptr && m_pView->IsCreate1stPointAsCenter()) {

        rRect.AdjustTop(rRect.Top()-rRect.Bottom() );

        rRect.AdjustLeft(rRect.Left()-rRect.Right() );

    }

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */