/* -*- 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 <zoomlist.hxx>

#include <svx/svxids.hrc>
#include <sfx2/bindings.hxx>
#include <sfx2/viewfrm.hxx>

#include <ViewShell.hxx>

namespace sd
{
ZoomList::ZoomList(ViewShell& rViewShell)
    : mrViewShell(rViewShell)
    , mnCurPos(0)
{
}

void ZoomList::InsertZoomRect(const ::tools::Rectangle& rRect)
{
    size_t nRectCount = maRectangles.size();
    constexpr size_t MAX_ENTRIES = 10;

    if (nRectCount >= MAX_ENTRIES)
        maRectangles.erase(maRectangles.begin());
    else if (nRectCount == 0)
        mnCurPos = 0;
    else
        mnCurPos++;

    maRectangles.insert(maRectangles.begin() + mnCurPos, rRect);

    SfxBindings& rBindings = mrViewShell.GetViewFrame()->GetBindings();
    rBindings.Invalidate(SID_ZOOM_NEXT);
    rBindings.Invalidate(SID_ZOOM_PREV);
}

::tools::Rectangle const& ZoomList::GetNextZoomRect()
{
    mnCurPos++;
    size_t nRectCount = maRectangles.size();

    if (nRectCount > 0 && mnCurPos > nRectCount - 1)
        mnCurPos = nRectCount - 1;

    SfxBindings& rBindings = mrViewShell.GetViewFrame()->GetBindings();
    rBindings.Invalidate(SID_ZOOM_NEXT);
    rBindings.Invalidate(SID_ZOOM_PREV);

    return maRectangles[mnCurPos];
}

::tools::Rectangle const& ZoomList::GetPreviousZoomRect()
{
    if (mnCurPos > 0)
        mnCurPos--;

    SfxBindings& rBindings = mrViewShell.GetViewFrame()->GetBindings();
    rBindings.Invalidate(SID_ZOOM_NEXT);
    rBindings.Invalidate(SID_ZOOM_PREV);

    return maRectangles[mnCurPos];
}

bool ZoomList::IsNextPossible() const
{
    size_t nRectCount = maRectangles.size();

    return nRectCount > 0 && mnCurPos < nRectCount - 1;
}

bool ZoomList::IsPreviousPossible() const { return mnCurPos > 0; }

} // end of namespace sd

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