/* -*- 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 <vcl/image.hxx>

#include <vcl/weld/customweld.hxx>

#include <vcl/window.hxx>

#include <svl/poolitem.hxx>

#include <vcl/InterimItemWindow.hxx>

#include <sfx2/tbxctrl.hxx>

namespace com::sun::star::frame { class XDispatchProvider; }

class SvxZoomSliderItem;

class ScZoomSliderControl : public SfxToolBoxControl

{

public:

    SFX_DECL_TOOLBOX_CONTROL();

    ScZoomSliderControl( sal_uInt16 nSlotId, ToolBoxItemId nId, ToolBox& rTbx );

    virtual ~ScZoomSliderControl() override;

    virtual void StateChangedAtToolBoxControl( sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState ) override;

    virtual VclPtr<InterimItemWindow> CreateItemWindow( vcl::Window *pParent ) override;

};

class ScZoomSlider final : public weld::CustomWidgetController

{

private:

    sal_uInt16                   mnSliderLength;

    sal_uInt16                   mnCurrentZoom;

    sal_uInt16                   mnMinZoom;

    sal_uInt16                   mnMaxZoom;

    std::vector< tools::Long >      maSnappingPointOffsets;

    std::vector< sal_uInt16 >    maSnappingPointZooms;

    Image                    maSliderButton;

    Image                    maIncreaseButton;

    Image                    maDecreaseButton;

    bool                     mbOmitPaint;

    css::uno::Reference<css::frame::XDispatchProvider> m_xDispatchProvider;

    sal_uInt16 Offset2Zoom(tools::Long nOffset) const;

    tools::Long Zoom2Offset(sal_uInt16 nZoom) const;

    void DoPaint(vcl::RenderContext& rRenderContext);

public:

    ScZoomSlider(css::uno::Reference<css::frame::XDispatchProvider> xDispatchProvider,

                 sal_uInt16 nCurrentZoom);

    void UpdateFromItem(const SvxZoomSliderItem* pZoomSliderItem);

    void SetSliderLength(sal_uInt16 nLength) { mnSliderLength = nLength; }

    sal_uInt16 GetSliderLength() const { return mnSliderLength; }

    virtual bool MouseButtonDown( const MouseEvent& rMEvt ) override;

    virtual bool MouseMove( const MouseEvent& rMEvt ) override;

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

};

class ScZoomSliderWnd final : public InterimItemWindow

{

private:

    std::unique_ptr<ScZoomSlider> mxWidget;

    std::unique_ptr<weld::Label> mxPercentage;

    std::unique_ptr<weld::Label> mxLabel;

    std::unique_ptr<weld::CustomWeld> mxWeld;

public:

    ScZoomSliderWnd(vcl::Window* pParent, const css::uno::Reference<css::frame::XDispatchProvider>& rDispatchProvider,

                    sal_uInt16 nCurrentZoom);

    virtual ~ScZoomSliderWnd() override;

    virtual void dispose() override;

    void UpdateFromItem( const SvxZoomSliderItem* pZoomSliderItem );

};

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