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

#include <vcl/toolkit/group.hxx>

#include <vcl/rendercontext/SystemTextColorFlags.hxx>

#include <vcl/settings.hxx>

#define GROUP_BORDER            12

#define GROUP_TEXT_BORDER       2

#define GROUP_VIEW_STYLE        (WB_3DLOOK | WB_NOLABEL)

void GroupBox::ImplInit( vcl::Window* pParent, WinBits nStyle )

{

    nStyle = ImplInitStyle( nStyle );

    Control::ImplInit( pParent, nStyle, nullptr );

    SetMouseTransparent( true );

    ImplInitSettings( true );

}

WinBits GroupBox::ImplInitStyle( WinBits nStyle )

{

    if ( !(nStyle & WB_NOGROUP) )

        nStyle |= WB_GROUP;

    return nStyle;

}

const vcl::Font& GroupBox::GetCanonicalFont( const StyleSettings& _rStyle ) const

{

    return _rStyle.GetGroupFont();

}

const Color& GroupBox::GetCanonicalTextColor( const StyleSettings& _rStyle ) const

{

    return _rStyle.GetGroupTextColor();

}

void GroupBox::ImplInitSettings( bool bBackground )

{

    Control::ImplInitSettings();

    if ( !bBackground )

        return;

    vcl::Window* pParent = GetParent();

    if (pParent->IsChildTransparentModeEnabled() ||

        !(pParent->GetStyle() & WB_CLIPCHILDREN) ||

        !IsControlBackground())

    {

        EnableChildTransparentMode();

        SetParentClipMode( ParentClipMode::NoClip );

        SetPaintTransparent( true );

        SetBackground();

    }

    else

    {

        EnableChildTransparentMode( false );

        SetParentClipMode();

        SetPaintTransparent( false );

        if ( IsControlBackground() )

            SetBackground( GetControlBackground() );

        else

            SetBackground( pParent->GetBackground() );

    }

}

GroupBox::GroupBox( vcl::Window* pParent, WinBits nStyle ) :

    Control( WindowType::GROUPBOX )

{

    ImplInit( pParent, nStyle );

}

Unexecuted instantiation: GroupBox::GroupBox(vcl::Window*, long)

Unexecuted instantiation: GroupBox::GroupBox(vcl::Window*, long)

void GroupBox::ImplDraw( OutputDevice* pDev, SystemTextColorFlags nSystemTextColorFlags,

                         const Point& rPos, const Size& rSize, bool bLayout )

{

    tools::Long                    nTop;

    tools::Long                    nTextOff;

    const StyleSettings&    rStyleSettings = GetSettings().GetStyleSettings();

    OUString                aText( GetText() );

    tools::Rectangle               aRect( rPos, rSize );

    DrawTextFlags           nTextStyle = DrawTextFlags::Left | DrawTextFlags::Top | DrawTextFlags::EndEllipsis | DrawTextFlags::Mnemonic;

    if ( GetStyle() & WB_NOLABEL )

        nTextStyle &= ~DrawTextFlags::Mnemonic;

    if ( !IsEnabled() )

        nTextStyle |= DrawTextFlags::Disable;

    if ( (nSystemTextColorFlags & SystemTextColorFlags::Mono) ||

         (rStyleSettings.GetOptions() & StyleSettingsOptions::Mono) )

    {

        nTextStyle |= DrawTextFlags::Mono;

        nSystemTextColorFlags |= SystemTextColorFlags::Mono;

    }

    if (aText.isEmpty())

    {

        nTop = rPos.Y();

        nTextOff = 0;

    }

    else

    {

        aRect.AdjustLeft(GROUP_BORDER );

        aRect.AdjustRight( -(GROUP_BORDER) );

        aRect = pDev->GetTextRect( aRect, aText, nTextStyle );

        nTop = rPos.Y();

        nTop += aRect.GetHeight() / 2;

        nTextOff = GROUP_TEXT_BORDER;

    }

    if( ! bLayout )

    {

        if ( nSystemTextColorFlags & SystemTextColorFlags::Mono )

            pDev->SetLineColor( COL_BLACK );

        else

            pDev->SetLineColor( rStyleSettings.GetShadowColor() );

        if (aText.isEmpty())

            pDev->DrawLine( Point( rPos.X(), nTop ), Point( rPos.X()+rSize.Width()-2, nTop ) );

        else

        {

            pDev->DrawLine( Point( rPos.X(), nTop ), Point( aRect.Left()-nTextOff, nTop ) );

            pDev->DrawLine( Point( aRect.Right()+nTextOff, nTop ), Point( rPos.X()+rSize.Width()-2, nTop ) );

        }

        pDev->DrawLine( Point( rPos.X(), nTop ), Point( rPos.X(), rPos.Y()+rSize.Height()-2 ) );

        pDev->DrawLine( Point( rPos.X(), rPos.Y()+rSize.Height()-2 ), Point( rPos.X()+rSize.Width()-2, rPos.Y()+rSize.Height()-2 ) );

        pDev->DrawLine( Point( rPos.X()+rSize.Width()-2, rPos.Y()+rSize.Height()-2 ), Point( rPos.X()+rSize.Width()-2, nTop ) );

        bool bIsPrinter = OUTDEV_PRINTER == pDev->GetOutDevType();

        // if we're drawing onto a printer, spare the 3D effect #i46986#

        if ( !bIsPrinter && !(nSystemTextColorFlags & SystemTextColorFlags::Mono) )

        {

            pDev->SetLineColor( rStyleSettings.GetLightColor() );

            if (aText.isEmpty())

                pDev->DrawLine( Point( rPos.X()+1, nTop+1 ), Point( rPos.X()+rSize.Width()-3, nTop+1 ) );

            else

            {

                pDev->DrawLine( Point( rPos.X()+1, nTop+1 ), Point( aRect.Left()-nTextOff, nTop+1 ) );

                pDev->DrawLine( Point( aRect.Right()+nTextOff, nTop+1 ), Point( rPos.X()+rSize.Width()-3, nTop+1 ) );

            }

            pDev->DrawLine( Point( rPos.X()+1, nTop+1 ), Point( rPos.X()+1, rPos.Y()+rSize.Height()-3 ) );

            pDev->DrawLine( Point( rPos.X(), rPos.Y()+rSize.Height()-1 ), Point( rPos.X()+rSize.Width()-1, rPos.Y()+rSize.Height()-1 ) );

            pDev->DrawLine( Point( rPos.X()+rSize.Width()-1, rPos.Y()+rSize.Height()-1 ), Point( rPos.X()+rSize.Width()-1, nTop ) );

        }

    }

    std::vector< tools::Rectangle >* pVector = bLayout ? &mxLayoutData->m_aUnicodeBoundRects : nullptr;

    OUString* pDisplayText = bLayout ? &mxLayoutData->m_aDisplayText : nullptr;

    DrawControlText( *pDev, aRect, aText, nTextStyle, pVector, pDisplayText );

}

void GroupBox::FillLayoutData() const

{

    mxLayoutData.emplace();

    const_cast<GroupBox*>(this)->ImplDraw( const_cast<GroupBox*>(this)->GetOutDev(), SystemTextColorFlags::NONE, Point(), GetOutputSizePixel(), true );

}

void GroupBox::Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& )

{

    ImplDraw(&rRenderContext, SystemTextColorFlags::NONE, Point(), GetOutputSizePixel());

}

void GroupBox::Draw( OutputDevice* pDev, const Point& rPos,

                     SystemTextColorFlags nFlags )

{

    Point       aPos  = pDev->LogicToPixel( rPos );

    Size        aSize = GetSizePixel();

    vcl::Font   aFont = GetDrawPixelFont( pDev );

    auto popIt = pDev->ScopedPush();

    pDev->SetMapMode();

    pDev->SetFont( aFont );

    if ( nFlags & SystemTextColorFlags::Mono )

        pDev->SetTextColor( COL_BLACK );

    else

        pDev->SetTextColor( GetTextColor() );

    pDev->SetTextFillColor();

    ImplDraw( pDev, nFlags, aPos, aSize );

}

void GroupBox::Resize()

{

    Control::Resize();

    Invalidate();

}

void GroupBox::StateChanged( StateChangedType nType )

{

    Control::StateChanged( nType );

    if ( (nType == StateChangedType::Enable) ||

         (nType == StateChangedType::Text) ||

         (nType == StateChangedType::UpdateMode) )

    {

        if ( IsUpdateMode() )

            Invalidate();

    }

    else if ( nType == StateChangedType::Style )

    {

        SetStyle( ImplInitStyle( GetStyle() ) );

        if ( (GetPrevStyle() & GROUP_VIEW_STYLE) !=

             (GetStyle() & GROUP_VIEW_STYLE) )

            Invalidate();

    }

    else if ( (nType == StateChangedType::Zoom)  ||

              (nType == StateChangedType::ControlFont) )

    {

        ImplInitSettings( false );

        Invalidate();

    }

    else if ( nType == StateChangedType::ControlForeground )

    {

        ImplInitSettings( false );

        Invalidate();

    }

    else if ( nType == StateChangedType::ControlBackground )

    {

        ImplInitSettings( true );

        Invalidate();

    }

}

void GroupBox::DataChanged( const DataChangedEvent& rDCEvt )

{

    Control::DataChanged( rDCEvt );

    if ( (rDCEvt.GetType() == DataChangedEventType::FONTS) ||

         (rDCEvt.GetType() == DataChangedEventType::FONTSUBSTITUTION) ||

         ((rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&

          (rDCEvt.GetFlags() & AllSettingsFlags::STYLE)) )

    {

        ImplInitSettings( true );

        Invalidate();

    }

}

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