/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * 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/.
 */

#ifndef INCLUDED_CUI_SOURCE_INC_SFXREDACTIONHELPER_HXX
#define INCLUDED_CUI_SOURCE_INC_SFXREDACTIONHELPER_HXX

#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/drawing/XDrawPage.hpp>

#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <tools/gen.hxx>

#include <vector>

using namespace ::com::sun::star;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::uno;

class SfxRequest;
class SfxStringItem;
class GDIMetaFile;
class DocumentToGraphicRenderer;
class SfxViewFrame;

struct PageMargins
{
    // Page margins in mm100th
    sal_Int32 nTop;
    sal_Int32 nBottom;
    sal_Int32 nLeft;
    sal_Int32 nRight;
};

/*
 * Mostly a bunch of static methods to handle the redaction functionality at
 * different points of the process.
 **/
class SfxRedactionHelper
{
public:
    /// Checks to see if the request has a parameter of IsRedactMode:bool=true
    static bool isRedactMode(const SfxRequest& rReq);
    /*
     * Returns the value of the given string param as an OUString
     * Returns empty OUString if no param
     * */
    static OUString getStringParam(const SfxRequest& rReq, const sal_uInt16& nParamId);
    /*
     * Creates metafiles from the pages of the given document,
     * and pushes into the given vector.
     * */
    static void getPageMetaFilesFromDoc(std::vector<GDIMetaFile>& aMetaFiles,
                                        std::vector<::Size>& aPageSizes, const sal_Int32& nPages,
                                        DocumentToGraphicRenderer& aRenderer);
    /*
     * Creates one shape and one draw page for each gdimetafile,
     * and inserts the shapes into the newly created draw pages.
     * */
    static void addPagesToDraw(uno::Reference<XComponent>& xComponent, const sal_Int32& nPages,
                               const std::vector<GDIMetaFile>& aMetaFiles,
                               const std::vector<::Size>& aPageSizes,
                               const PageMargins& aPageMargins);
    /*
     * Makes the Redaction toolbar visible to the user.
     * Meant to be called after converting a document to a Draw doc
     * for redaction purposes.
     * */
    static void showRedactionToolbar(SfxViewFrame* pViewFrame);

    /*
     * Used to get the page margins from the original/source Writer document. Then we apply these values to the
     * pages inserted into Draw for redaction.
     * */
    static PageMargins getPageMarginsForWriter(css::uno::Reference<css::frame::XModel>& xModel);

    /*
     * Used to get the page margins from the original/source Calc document. Then we apply these values to the
     * pages inserted into Draw for redaction.
     * */
    static PageMargins getPageMarginsForCalc(css::uno::Reference<css::frame::XModel>& xModel);

    static void searchInMetaFile(const OUString& sSearchTerm, const GDIMetaFile& rMtf,
                                 std::vector<tools::Rectangle>& aRedactionRectangles,
                                 uno::Reference<XComponent>& xComponent);

    /*
     * Draws a redaction rectangle on the draw page referenced with its page number (0-based)
     * */
    static void addRedactionRectToPage(uno::Reference<XComponent>& xComponent,
                                       uno::Reference<drawing::XDrawPage>& xPage,
                                       const std::vector<tools::Rectangle>& aNewRectangles);

    /*
     * Search for the given term through the gdimetafile, which has the whole content of a draw page,
     * and draw redaction rectangles to the appropriate positions with suitable sizes.
     * */
    static void autoRedactPage(const OUString& sRedactionTerm, const GDIMetaFile& rGDIMetaFile,
                               uno::Reference<drawing::XDrawPage>& xPage,
                               uno::Reference<XComponent>& xComponent);
};

#endif // INCLUDED_CUI_SOURCE_INC_SFXREDACTIONHELPER_HXX

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