/* -*- 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 <sal/config.h>

#include <svx/dialmgr.hxx>
#include <svx/strings.hrc>
#include <comphelper/diagnose_ex.hxx>
#include <i18nlangtag/mslangid.hxx>
#include <svtools/valueset.hxx>
#include <editeng/numitem.hxx>
#include <officecfg/Office/Common.hxx>
#include <svx/gallery.hxx>
#include <vcl/event.hxx>
#include <vcl/graph.hxx>
#include <vcl/virdev.hxx>
#include <svx/numvset.hxx>
#include <com/sun/star/style/NumberingType.hpp>
#include <com/sun/star/container/XIndexAccess.hpp>
#include <com/sun/star/text/XNumberingFormatter.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>

#include <algorithm>

#include <uiobject.hxx>

using namespace com::sun::star::uno;
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::text;
using namespace com::sun::star::container;
using namespace com::sun::star::style;

static vcl::Font& lcl_GetDefaultBulletFont()
{
    static vcl::Font aDefBulletFont = []()
    {
        static vcl::Font tmp(u"OpenSymbol"_ustr, u""_ustr, Size(0, 14));
        tmp.SetCharSet( RTL_TEXTENCODING_SYMBOL );
        tmp.SetFamily( FAMILY_DONTKNOW );
        tmp.SetPitch( PITCH_DONTKNOW );
        tmp.SetWeight( WEIGHT_DONTKNOW );
        tmp.SetTransparent( true );
        return tmp;
    }();
    return aDefBulletFont;
}

static void lcl_PaintLevel(OutputDevice* pVDev, sal_Int16 nNumberingType,
                        const OUString& rBulletChar, const OUString& rText, const OUString& rFontName,
                        Point& rLeft, vcl::Font& rRuleFont, const vcl::Font& rTextFont)
{

    if(NumberingType::CHAR_SPECIAL == nNumberingType )
    {
        rRuleFont.SetStyleName(rFontName);
        pVDev->SetFont(rRuleFont);
        pVDev->DrawText(rLeft, rBulletChar);
        rLeft.AdjustX(pVDev->GetTextWidth(rBulletChar) );
    }
    else
    {
        pVDev->SetFont(rTextFont);
        pVDev->DrawText(rLeft, rText);
        rLeft.AdjustX(pVDev->GetTextWidth(rText) );
    }
}

const TranslateId RID_SVXSTR_SINGLENUM_DESCRIPTIONS[] =
{
    RID_SVXSTR_SINGLENUM_DESCRIPTION_0,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_1,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_2,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_3,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_4,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_5,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_6,
    RID_SVXSTR_SINGLENUM_DESCRIPTION_7
};

const TranslateId RID_SVXSTR_OUTLINENUM_DESCRIPTIONS[] =
{
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_0,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_1,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_2,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_3,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_4,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_5,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_6,
    RID_SVXSTR_OUTLINENUM_DESCRIPTION_7
};

void SvxNumValueSet::UserDraw( const UserDrawEvent& rUDEvt )
{
    static const sal_uInt16 aLinesArr[] =
    {
        15, 10,
        20, 30,
        25, 50,
        30, 70,
        35, 90, // up to here line positions
         5, 10, // character positions
        10, 30,
        15, 50,
        20, 70,
        25, 90,
    };

    const Color aBackColor(COL_WHITE);
    const Color aTextColor(COL_BLACK);

    vcl::RenderContext* pDev = rUDEvt.GetRenderContext();
    tools::Rectangle aRect = rUDEvt.GetRect();
    sal_uInt16 nIndex = rUDEvt.GetItemId() - 1;


    tools::Long nRectWidth = aRect.GetWidth();
    tools::Long nRectHeight = aRect.GetHeight();
    Size aRectSize(nRectWidth, aRect.GetHeight());
    Point aBLPos = aRect.TopLeft();
    vcl::Font aOldFont = pDev->GetFont();
    Color aOldColor = pDev->GetLineColor();
    pDev->SetLineColor(aTextColor);
    vcl::Font aFont(OutputDevice::GetDefaultFont(
                DefaultFontType::UI_SANS, MsLangId::getConfiguredSystemLanguage(), GetDefaultFontFlags::OnlyOne));

    Size aSize = aFont.GetFontSize();

    vcl::Font aRuleFont( lcl_GetDefaultBulletFont() );
    aSize.setHeight( nRectHeight/6 );
    aRuleFont.SetFontSize(aSize);
    aRuleFont.SetColor(aTextColor);
    aRuleFont.SetFillColor(aBackColor);
    css::uno::Sequence< OUString > aBulletSymbols;

    if(ePageType == NumberingPageType::BULLET || ePageType == NumberingPageType::DOCBULLET)
    {
        aBulletSymbols = officecfg::Office::Common::BulletsNumbering::DefaultBullets::get();
        css::uno::Sequence< OUString > aBulletFonts(officecfg::Office::Common::BulletsNumbering::DefaultBulletsFonts::get());
        aRuleFont.SetFamilyName(aBulletFonts[nIndex]);
        aFont = aRuleFont;
    }
    else if (ePageType == NumberingPageType::DOCBULLET)
    {
        aRuleFont.SetFamilyName(maCustomBullets[nIndex].second);
        aFont = aRuleFont;
    }
    else if(ePageType == NumberingPageType::OUTLINE)
    {
        aSize.setHeight( nRectHeight/8 );
    }
    aFont.SetColor(aTextColor);
    aFont.SetFillColor(aBackColor);
    aFont.SetFontSize( aSize );
    pDev->SetFont(aFont);

    if(!pVDev)
    {
        // The lines are only one time in the virtual device, only the outline
        // page is currently done
        pVDev = VclPtr<VirtualDevice>::Create(*pDev);
        pVDev->SetMapMode(pDev->GetMapMode());
        pVDev->EnableRTL( IsRTLEnabled() );
        pVDev->SetOutputSize( aRectSize );
        aOrgRect = aRect;
        pVDev->SetFillColor( aBackColor );
        pVDev->SetLineColor(COL_LIGHTGRAY);
        // Draw line only once
        if(ePageType != NumberingPageType::OUTLINE)
        {
            Point aStart(aBLPos.X() + nRectWidth *25 / 100,0);
            Point aEnd(aBLPos.X() + nRectWidth * 9 / 10,0);
            for( sal_uInt16 i = 11; i < 100; i += 33)
            {
                aStart.setY( aBLPos.Y() + nRectHeight  * i / 100 );
                aEnd.setY( aStart.Y() );
                pVDev->DrawLine(aStart, aEnd);
                aStart.setY( aBLPos.Y() + nRectHeight  * (i + 11) / 100 );
                aEnd.setY( aStart.Y() );
                pVDev->DrawLine(aStart, aEnd);
            }
        }
    }
    pDev->DrawOutDev(   aRect.TopLeft(), aRectSize,
                        aOrgRect.TopLeft(), aRectSize,
                        *pVDev );
    // Now comes the text
    static constexpr OUStringLiteral sValue(u"Value");
    if( NumberingPageType::SINGLENUM == ePageType ||
           NumberingPageType::BULLET == ePageType ||
           NumberingPageType::DOCBULLET == ePageType)
    {
        Point aStart(aBLPos.X() + nRectWidth / 9,0);
        for( sal_uInt16 i = 0; i < 3; i++ )
        {
            sal_uInt16 nY = 11 + i * 33;
            aStart.setY( aBLPos.Y() + nRectHeight  * nY / 100 );
            OUString sText;
            if(ePageType == NumberingPageType::BULLET)
            {
                sText = aBulletSymbols[nIndex];
                aStart.AdjustY( -(pDev->GetTextHeight()/2) );
                aStart.setX( aBLPos.X() + 5 );
            }
            else if (ePageType == NumberingPageType::DOCBULLET)
            {
                sText = maCustomBullets[nIndex].first;
                aStart.AdjustY( -(pDev->GetTextHeight()/2) );
                aStart.setX( aBLPos.X() + 5 );
            }
            else
            {
                if(xFormatter.is() && aNumSettings.getLength() > nIndex)
                {
                    Sequence<PropertyValue> aLevel = aNumSettings.getConstArray()[nIndex];
                    try
                    {
                        aLevel.realloc(aLevel.getLength() + 1);
                        PropertyValue& rValue = aLevel.getArray()[aLevel.getLength() - 1];
                        rValue.Name = sValue;
                        rValue.Value <<= static_cast<sal_Int32>(i + 1);
                        sText = xFormatter->makeNumberingString( aLevel, aLocale );
                    }
                    catch(Exception&)
                    {
                        TOOLS_WARN_EXCEPTION("svx.dialog", "");
                    }
                }
                // start just next to the left edge
                aStart.setX( aBLPos.X() + 2 );
                aStart.AdjustY( -(pDev->GetTextHeight()/2) );
            }
            pDev->DrawText(aStart, sText);
        }
    }
    else if(NumberingPageType::OUTLINE == ePageType )
    {
        // Outline numbering has to be painted into the virtual device
        // to get correct lines
        // has to be made again
        pVDev->SetLineColor(aBackColor);
        pVDev->DrawRect(aOrgRect);
        tools::Long nStartX = aOrgRect.Left();
        tools::Long nStartY = aOrgRect.Top();

        if(xFormatter.is() && aOutlineSettings.getLength() > nIndex)
        {
            Reference<XIndexAccess> xLevel = aOutlineSettings.getArray()[nIndex];
            try
            {
                OUString sLevelTexts[5];
                OUString sFontNames[5];
                OUString sBulletChars[5];
                sal_Int16 aNumberingTypes[5];
                OUString sPrefixes[5];
                OUString sSuffixes[5];
                sal_Int16 aParentNumberings[5];

                sal_Int32 nLevelCount = xLevel->getCount();
                if(nLevelCount > 5)
                    nLevelCount = 5;
                for( sal_Int32 i = 0; i < nLevelCount; i++)
                {
                    tools::Long nTop = nStartY + nRectHeight * (aLinesArr[2 * i + 11])/100 ;
                    Point aLeft(nStartX + nRectWidth *  (aLinesArr[2 * i + 10])/ 100, nTop );

                    Any aLevelAny = xLevel->getByIndex(i);
                    Sequence<PropertyValue> aLevel;
                    aLevelAny >>= aLevel;
                    aNumberingTypes[i] = 0;
                    aParentNumberings[i] = 0;
                    for (const PropertyValue& rProp : aLevel)
                    {
                        if ( rProp.Name == "NumberingType" )
                            rProp.Value >>= aNumberingTypes[i];
                        else if ( rProp.Name == "BulletFontName" )
                            rProp.Value >>= sFontNames[i];
                        else if ( rProp.Name == "BulletChar" )
                            rProp.Value >>= sBulletChars[i];
                        else if ( rProp.Name == "Prefix" )
                            rProp.Value >>= sPrefixes[i];
                        else if ( rProp.Name == "Suffix" )
                            rProp.Value >>= sSuffixes[i];
                        else if ( rProp.Name == "ParentNumbering" )
                            rProp.Value >>= aParentNumberings[i];
                    }
                    Sequence< PropertyValue > aProperties(2);
                    PropertyValue* pProperties = aProperties.getArray();
                    pProperties[0].Name = "NumberingType";
                    pProperties[0].Value <<= aNumberingTypes[i];
                    pProperties[1].Name = "Value";
                    pProperties[1].Value <<= sal_Int32(1);
                    try
                    {
                        sLevelTexts[i] = xFormatter->makeNumberingString( aProperties, aLocale );
                    }
                    catch(Exception&)
                    {
                        TOOLS_WARN_EXCEPTION("svx.dialog", "");
                    }

                    aLeft.AdjustY( -(pDev->GetTextHeight()/2) );
                    if(!sPrefixes[i].isEmpty() &&
                        sPrefixes[i] != " ")
                    {
                        pVDev->SetFont(aFont);
                        pVDev->DrawText(aLeft, sPrefixes[i]);
                        aLeft.AdjustX(pDev->GetTextWidth(sPrefixes[i]) );
                    }
                    if(aParentNumberings[i])
                    {
                        //insert old numberings here
                        sal_Int32 nStartLevel = std::min(static_cast<sal_Int32>(aParentNumberings[i]), i);
                        for(sal_Int32 nParentLevel = i - nStartLevel; nParentLevel < i; nParentLevel++)
                        {
                            OUString sTmp = sLevelTexts[nParentLevel] + ".";
                            lcl_PaintLevel(pVDev,
                                    aNumberingTypes[nParentLevel],
                                    sBulletChars[nParentLevel],
                                    sTmp,
                                    sFontNames[nParentLevel],
                                    aLeft,
                                    aRuleFont,
                                    aFont);
                        }
                    }
                    lcl_PaintLevel(pVDev,
                                    aNumberingTypes[i],
                                    sBulletChars[i],
                                    sLevelTexts[i],
                                    sFontNames[i],
                                    aLeft,
                                    aRuleFont,
                                    aFont);
                    if(!sSuffixes[i].isEmpty() &&
                       !sSuffixes[i].startsWith(" "))
                    {
                        pVDev->SetFont(aFont);
                        pVDev->DrawText(aLeft, sSuffixes[i]);
                        aLeft.AdjustX(pDev->GetTextWidth(sSuffixes[i]) );
                    }

                    tools::Long nLineTop = nStartY + nRectHeight * aLinesArr[2 * i + 1]/100 ;
                    Point aLineLeft(aLeft.X(), nLineTop );
                    Point aLineRight(nStartX + nRectWidth * 90 /100, nLineTop );
                    pVDev->SetLineColor(COL_LIGHTGRAY);
                    pVDev->DrawLine(aLineLeft,  aLineRight);
                }

            }
#ifdef DBG_UTIL
            catch(Exception&)
            {
                static bool bAssert = false;
                if(!bAssert)
                {
                    TOOLS_WARN_EXCEPTION("svx.dialog", "");
                    bAssert = true;
                }
            }
#else
            catch(Exception&)
            {
            }
#endif
        }
        pDev->DrawOutDev(   aRect.TopLeft(), aRectSize,
                            aOrgRect.TopLeft(), aRectSize,
                            *pVDev );
    }

    pDev->SetFont(aOldFont);
    pDev->SetLineColor(aOldColor);
}

SvxNumValueSet::SvxNumValueSet(std::unique_ptr<weld::ScrolledWindow> pScrolledWindow)
    : ValueSet(std::move(pScrolledWindow))
    , ePageType(NumberingPageType::BULLET)
    , pVDev(nullptr)
{
}

FactoryFunction SvxNumValueSet::GetUITestFactory() const
{
    return SvxNumValueSetUIObject::create;
}

void SvxNumValueSet::init(NumberingPageType eType)
{
    ePageType = eType;
    pVDev = nullptr;

    SetColCount( 4 );
    SetLineCount( 2 );
    SetStyle( GetStyle() | WB_ITEMBORDER | WB_DOUBLEBORDER );
    if(NumberingPageType::BULLET == eType)
    {
        for ( sal_uInt16 i = 0; i < 8; i++ )
        {
            InsertItem( i + 1, i );
        }
    }
}

SvxNumValueSet::~SvxNumValueSet()
{
}

void SvxNumValueSet::SetNumberingSettings(
    const Sequence<Sequence<PropertyValue> >& aNum,
    Reference<XNumberingFormatter> const & xFormat,
    const Locale& rLocale   )
{
    aNumSettings = aNum;
    xFormatter = xFormat;
    aLocale = rLocale;
    if(aNum.getLength() > 8)
            SetStyle( GetStyle()|WB_VSCROLL);
    for ( sal_Int32 i = 0; i < aNum.getLength(); i++ )
    {
        InsertItem(i + 1, i);
        if (i < 8)
            SetItemText(i + 1, SvxResId(RID_SVXSTR_SINGLENUM_DESCRIPTIONS[i]));
    }
}

void SvxNumValueSet::SetOutlineNumberingSettings(
            Sequence<Reference<XIndexAccess> > const & rOutline,
            Reference<XNumberingFormatter> const & xFormat,
            const Locale& rLocale)
{
    aOutlineSettings = rOutline;
    xFormatter = xFormat;
    aLocale = rLocale;
    if(aOutlineSettings.getLength() > 8)
        SetStyle( GetStyle() | WB_VSCROLL );
    for ( sal_Int32 i = 0; i < aOutlineSettings.getLength(); i++ )
    {
        InsertItem( i + 1, i );
        if( i < 8 )
            SetItemText(i + 1, SvxResId(RID_SVXSTR_OUTLINENUM_DESCRIPTIONS[i]));
    }
}

void SvxNumValueSet::SetCustomBullets(const std::vector<std::pair<OUString, OUString>>& rCustomBullets)
{
    Clear();
    maCustomBullets = rCustomBullets;
    for (size_t i = 0; i < rCustomBullets.size(); i++)
    {
        InsertItem(i + 1, i);
    }
}

SvxBmpNumValueSet::SvxBmpNumValueSet(std::unique_ptr<weld::ScrolledWindow> pScrolledWindow)
    : SvxNumValueSet(std::move(pScrolledWindow))
    , aFormatIdle("SvxBmpNumValueSet FormatIdle")
    , bGrfNotFound(false)
{
}

void SvxBmpNumValueSet::init()
{
    SvxNumValueSet::init(NumberingPageType::BITMAP);
    bGrfNotFound = false;
    GalleryExplorer::BeginLocking(GALLERY_THEME_BULLETS);
    SetStyle( GetStyle() | WB_VSCROLL );
    SetLineCount( 3 );
    aFormatIdle.SetPriority(TaskPriority::LOWEST);
    aFormatIdle.SetInvokeHandler(LINK(this, SvxBmpNumValueSet, FormatHdl_Impl));
}


SvxBmpNumValueSet::~SvxBmpNumValueSet()
{
    GalleryExplorer::EndLocking(GALLERY_THEME_BULLETS);
    aFormatIdle.Stop();
}

void SvxBmpNumValueSet::UserDraw(const UserDrawEvent& rUDEvt)
{
    SvxNumValueSet::UserDraw(rUDEvt);

    tools::Rectangle aRect = rUDEvt.GetRect();
    vcl::RenderContext* pDev = rUDEvt.GetRenderContext();
    sal_uInt16  nItemId = rUDEvt.GetItemId();
    Point aBLPos = aRect.TopLeft();

    tools::Long nRectHeight = aRect.GetHeight();
    Size aSize(nRectHeight/8, nRectHeight/8);

    Graphic aGraphic;
    if(!GalleryExplorer::GetGraphicObj( GALLERY_THEME_BULLETS, nItemId - 1,
                        &aGraphic))
    {
        bGrfNotFound = true;
    }
    else
    {
        Point aPos(aBLPos.X() + 5, 0);
        for( sal_uInt16 i = 0; i < 3; i++ )
        {
            sal_uInt16 nY = 11 + i * 33;
            aPos.setY( aBLPos.Y() + nRectHeight  * nY / 100 );
            aGraphic.Draw(*pDev, aPos, aSize);
        }
    }
}

IMPL_LINK_NOARG(SvxBmpNumValueSet, FormatHdl_Impl, Timer *, void)
{
    // only when a graphics was not there, it needs to be formatted
    if (bGrfNotFound)
    {
        SetFormat();
        bGrfNotFound = false;
    }
    Invalidate();
}

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