/* -*- 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 <sfx2/sidebar/DeckTitleBar.hxx>
#include <sfx2/sidebar/SidebarDockingWindow.hxx>
#include <sfx2/sidebar/Theme.hxx>
#include <sfx2/sfxresid.hxx>
#include <sfx2/strings.hrc>

#include <vcl/event.hxx>
#include <vcl/image.hxx>
#include <vcl/ptrstyle.hxx>

#ifdef DEBUG
#include <sfx2/sidebar/Tools.hxx>
#endif

namespace sfx2 { namespace sidebar {

namespace
{
static const sal_Int32 gaLeftGripPadding (3);
static const sal_Int32 gaRightGripPadding (6);
}

DeckTitleBar::DeckTitleBar (const OUString& rsTitle,
                            vcl::Window* pParentWindow,
                            const std::function<void()>& rCloserAction)
    : TitleBar(rsTitle, pParentWindow, GetBackgroundPaint())
    , maCloserAction(rCloserAction)
    , mbIsCloserVisible(false)
{
    OSL_ASSERT(pParentWindow != nullptr);

    if (maCloserAction)
        SetCloserVisible(true);

#ifdef DEBUG
    SetText(OUString("DeckTitleBar"));
#endif
}

void DeckTitleBar::SetCloserVisible (const bool bIsCloserVisible)
{
    if (mbIsCloserVisible == bIsCloserVisible)
        return;

    mbIsCloserVisible = bIsCloserVisible;

    if (mbIsCloserVisible)
    {
        maToolBox->InsertItem(mnCloserItemIndex,
                              Theme::GetImage(Theme::Image_Closer));
        maToolBox->SetQuickHelpText(mnCloserItemIndex,
                                    SfxResId(SFX_STR_SIDEBAR_CLOSE_DECK));
    }
    else
        maToolBox->RemoveItem(maToolBox->GetItemPos(mnCloserItemIndex));
}

tools::Rectangle DeckTitleBar::GetTitleArea (const tools::Rectangle& rTitleBarBox)
{
    Image aGripImage (Theme::GetImage(Theme::Image_Grip));
    return tools::Rectangle(
        aGripImage.GetSizePixel().Width() + gaLeftGripPadding + gaRightGripPadding,
        rTitleBarBox.Top(),
        rTitleBarBox.Right(),
        rTitleBarBox.Bottom());
}

tools::Rectangle DeckTitleBar::GetDragArea()
{
    Image aGripImage (Theme::GetImage(Theme::Image_Grip));
    return tools::Rectangle(0,0,
               aGripImage.GetSizePixel().Width() + gaLeftGripPadding + gaRightGripPadding,
               aGripImage.GetSizePixel().Height()
    );
}

void DeckTitleBar::PaintDecoration(vcl::RenderContext& rRenderContext)
{
   Image aImage (Theme::GetImage(Theme::Image_Grip));
   const Point aTopLeft(gaLeftGripPadding,
                        (GetSizePixel().Height() - aImage.GetSizePixel().Height()) / 2);
   rRenderContext.DrawImage(aTopLeft, aImage);
}

sidebar::Paint DeckTitleBar::GetBackgroundPaint()
{
    return Theme::GetPaint(Theme::Paint_DeckTitleBarBackground);
}

void DeckTitleBar::HandleToolBoxItemClick (const sal_uInt16 nItemIndex)
{
    if (nItemIndex == mnCloserItemIndex && maCloserAction)
        maCloserAction();
}

css::uno::Reference<css::accessibility::XAccessible> DeckTitleBar::CreateAccessible()
{
    SetAccessibleName(msTitle);
    SetAccessibleDescription(msTitle);
    return TitleBar::CreateAccessible();
}

void DeckTitleBar::DataChanged (const DataChangedEvent& rEvent)
{
    maToolBox->SetItemImage(
        mnCloserItemIndex,
        Theme::GetImage(Theme::Image_Closer));
    TitleBar::DataChanged(rEvent);
}


void DeckTitleBar::MouseMove (const MouseEvent& rMouseEvent)
{
    tools::Rectangle aGrip = GetDragArea();
    PointerStyle eStyle = PointerStyle::Arrow;

    if ( aGrip.IsInside( rMouseEvent.GetPosPixel() ) )
        eStyle = PointerStyle::Move;

    SetPointer( eStyle );

    Window::MouseMove( rMouseEvent );
}

} } // end of namespace sfx2::sidebar

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