/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#include <tools/rc.h>

#include <vcl/event.hxx>
#include <vcl/group.hxx>

#include <controldata.hxx>

// =======================================================================

#define GROUP_BORDER			12
#define GROUP_TEXT_BORDER		2

#define GROUP_VIEW_STYLE		(WB_3DLOOK | WB_NOLABEL)

// =======================================================================

void GroupBox::ImplInit( Window* pParent, WinBits nStyle )
{
	nStyle = ImplInitStyle( nStyle );
	Control::ImplInit( pParent, nStyle, NULL );
	SetMouseTransparent( sal_True );
	ImplInitSettings( sal_True, sal_True, sal_True );
}

// -----------------------------------------------------------------------

WinBits GroupBox::ImplInitStyle( WinBits nStyle )
{
	if ( !(nStyle & WB_NOGROUP) )
		nStyle |= WB_GROUP;
	return nStyle;
}

// -----------------------------------------------------------------

const Font& GroupBox::GetCanonicalFont( const StyleSettings& _rStyle ) const
{
    return _rStyle.GetGroupFont();
}

// -----------------------------------------------------------------
const Color& GroupBox::GetCanonicalTextColor( const StyleSettings& _rStyle ) const
{
    return _rStyle.GetGroupTextColor();
}

// -----------------------------------------------------------------------

void GroupBox::ImplInitSettings( sal_Bool bFont,
								 sal_Bool bForeground, sal_Bool bBackground )
{
    Control::ImplInitSettings( bFont, bForeground );

	if ( bBackground )
	{
		Window* pParent = GetParent();
		if ( (pParent->IsChildTransparentModeEnabled() ||
			  !(pParent->GetStyle() & WB_CLIPCHILDREN) ) &&
			 !IsControlBackground() )
		{
			EnableChildTransparentMode( sal_True );
			SetParentClipMode( PARENTCLIPMODE_NOCLIP );
			SetPaintTransparent( sal_True );
			SetBackground();
		}
		else
		{
			EnableChildTransparentMode( sal_False );
			SetParentClipMode( 0 );
			SetPaintTransparent( sal_False );

			if ( IsControlBackground() )
				SetBackground( GetControlBackground() );
			else
				SetBackground( pParent->GetBackground() );
		}
	}
}

// -----------------------------------------------------------------------

GroupBox::GroupBox( Window* pParent, WinBits nStyle ) :
	Control( WINDOW_GROUPBOX )
{
	ImplInit( pParent, nStyle );
}

// -----------------------------------------------------------------------

GroupBox::GroupBox( Window* pParent, const ResId& rResId ) :
	Control( WINDOW_GROUPBOX )
{
	rResId.SetRT( RSC_GROUPBOX );
	WinBits nStyle = ImplInitRes( rResId );
	ImplInit( pParent, nStyle );
	ImplLoadRes( rResId );

	if ( !(nStyle & WB_HIDE) )
		Show();
}

// -----------------------------------------------------------------------

void GroupBox::ImplDraw( OutputDevice* pDev, sal_uLong nDrawFlags,
						 const Point& rPos, const Size& rSize, bool bLayout )
{
	long					nTop;
	long					nTextOff;
	const StyleSettings&	rStyleSettings = GetSettings().GetStyleSettings();
	XubString				aText( GetText() );
	Rectangle				aRect( rPos, rSize );
	sal_uInt16					nTextStyle = TEXT_DRAW_LEFT | TEXT_DRAW_TOP | TEXT_DRAW_ENDELLIPSIS | TEXT_DRAW_MNEMONIC;

	if ( GetStyle() & WB_NOLABEL )
		nTextStyle &= ~TEXT_DRAW_MNEMONIC;
	if ( nDrawFlags & WINDOW_DRAW_NOMNEMONIC )
	{
		if ( nTextStyle & TEXT_DRAW_MNEMONIC )
		{
			aText = GetNonMnemonicString( aText );
			nTextStyle &= ~TEXT_DRAW_MNEMONIC;
		}
	}
	if ( !(nDrawFlags & WINDOW_DRAW_NODISABLE) )
	{
		if ( !IsEnabled() )
			nTextStyle |= TEXT_DRAW_DISABLE;
	}
	if ( (nDrawFlags & WINDOW_DRAW_MONO) ||
		 (rStyleSettings.GetOptions() & STYLE_OPTION_MONO) )
	{
		nTextStyle |= TEXT_DRAW_MONO;
		nDrawFlags |= WINDOW_DRAW_MONO;
	}

	if ( !aText.Len() )
	{
		nTop = rPos.Y();
		nTextOff = 0;
	}
	else
	{
		aRect.Left() += GROUP_BORDER;
		aRect.Right() -= GROUP_BORDER;
		aRect = pDev->GetTextRect( aRect, aText, nTextStyle );
		nTop = rPos.Y();
		nTop += aRect.GetHeight() / 2;
		nTextOff = GROUP_TEXT_BORDER;
	}

    if( ! bLayout )
    {
        if ( nDrawFlags & WINDOW_DRAW_MONO )
            pDev->SetLineColor( Color( COL_BLACK ) );
        else
            pDev->SetLineColor( rStyleSettings.GetShadowColor() );
        
        if ( !aText.Len() )
            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# / 2005-04-13 / frank.schoenheit@sun.com

        if ( !bIsPrinter && !(nDrawFlags & WINDOW_DRAW_MONO) )
        {
            pDev->SetLineColor( rStyleSettings.GetLightColor() );
            if ( !aText.Len() )
                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 ) );
        }
    }

    MetricVector* pVector = bLayout ? &mpControlData->mpLayoutData->m_aUnicodeBoundRects : NULL;
    String* pDisplayText = bLayout ? &mpControlData->mpLayoutData->m_aDisplayText : NULL;
    DrawControlText( *pDev, aRect, aText, nTextStyle, pVector, pDisplayText );
}

// -----------------------------------------------------------------------

void GroupBox::FillLayoutData() const
{
    mpControlData->mpLayoutData = new vcl::ControlLayoutData();
    const_cast<GroupBox*>(this)->	ImplDraw( const_cast<GroupBox*>(this), 0, Point(), GetOutputSizePixel(), true );
}

// -----------------------------------------------------------------------

void GroupBox::Paint( const Rectangle& )
{
	ImplDraw( this, 0, Point(), GetOutputSizePixel() );
}

// -----------------------------------------------------------------------

void GroupBox::Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize,
					 sal_uLong nFlags )
{
	Point		aPos  = pDev->LogicToPixel( rPos );
	Size		aSize = pDev->LogicToPixel( rSize );
	Font		aFont = GetDrawPixelFont( pDev );

	pDev->Push();
	pDev->SetMapMode();
	pDev->SetFont( aFont );
	if ( nFlags & WINDOW_DRAW_MONO )
		pDev->SetTextColor( Color( COL_BLACK ) );
	else
		pDev->SetTextColor( GetTextColor() );
	pDev->SetTextFillColor();

	ImplDraw( pDev, nFlags, aPos, aSize );
	pDev->Pop();
}

// -----------------------------------------------------------------------

void GroupBox::Resize()
{
    Control::Resize();
	Invalidate();
}

// -----------------------------------------------------------------------

void GroupBox::StateChanged( StateChangedType nType )
{
	Control::StateChanged( nType );

	if ( (nType == STATE_CHANGE_ENABLE) ||
		 (nType == STATE_CHANGE_TEXT) ||
		 (nType == STATE_CHANGE_UPDATEMODE) )
	{
		if ( IsUpdateMode() )
			Invalidate();
	}
	else if ( nType == STATE_CHANGE_STYLE )
	{
		SetStyle( ImplInitStyle( GetStyle() ) );
		if ( (GetPrevStyle() & GROUP_VIEW_STYLE) !=
			 (GetStyle() & GROUP_VIEW_STYLE) )
			Invalidate();
	}
	else if ( (nType == STATE_CHANGE_ZOOM)	||
			  (nType == STATE_CHANGE_CONTROLFONT) )
	{
		ImplInitSettings( sal_True, sal_False, sal_False );
		Invalidate();
	}
	else if ( nType == STATE_CHANGE_CONTROLFOREGROUND )
	{
		ImplInitSettings( sal_False, sal_True, sal_False );
		Invalidate();
	}
	else if ( nType == STATE_CHANGE_CONTROLBACKGROUND )
	{
		ImplInitSettings( sal_False, sal_False, sal_True );
		Invalidate();
	}
}

// -----------------------------------------------------------------------

void GroupBox::DataChanged( const DataChangedEvent& rDCEvt )
{
	Control::DataChanged( rDCEvt );

	if ( (rDCEvt.GetType() == DATACHANGED_FONTS) ||
		 (rDCEvt.GetType() == DATACHANGED_FONTSUBSTITUTION) ||
		 ((rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
		  (rDCEvt.GetFlags() & SETTINGS_STYLE)) )
	{
		ImplInitSettings( sal_True, sal_True, sal_True );
		Invalidate();
	}
}