/**************************************************************
 * 
 * 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 <vcl/morebtn.hxx>

#ifndef _SV_RD_H
#include <tools/rc.h>
#endif


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

DECLARE_LIST( ImplMoreWindowList, Window* )

struct ImplMoreButtonData
{
    ImplMoreWindowList *mpItemList;
    XubString           maMoreText;
    XubString           maLessText;
};

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

void MoreButton::ImplInit( Window* pParent, WinBits nStyle )
{
    mpMBData     = new ImplMoreButtonData;
	mnDelta 	 = 0;
	meUnit		 = MAP_PIXEL;
	mbState 	 = sal_False;

	mpMBData->mpItemList = NULL;

	PushButton::ImplInit( pParent, nStyle );

	mpMBData->maMoreText = Button::GetStandardText( BUTTON_MORE );
    mpMBData->maLessText = Button::GetStandardText( BUTTON_LESS );

	SetHelpText( Button::GetStandardHelpText( BUTTON_MORE ) );

    ShowState();

    SetSymbolAlign( SYMBOLALIGN_RIGHT );
    ImplSetSmallSymbol( sal_True );

    if ( ! ( nStyle & ( WB_RIGHT | WB_LEFT ) ) )
    {
        nStyle |= WB_CENTER;
        SetStyle( nStyle );
    }
}

// -----------------------------------------------------------------------
void MoreButton::ShowState()
{
    if ( mbState )
    {
        SetSymbol( SYMBOL_PAGEUP );
        SetText( mpMBData->maLessText );
    }
    else
    {
        SetSymbol( SYMBOL_PAGEDOWN );
        SetText( mpMBData->maMoreText );
    }
}

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

MoreButton::MoreButton( Window* pParent, WinBits nStyle ) :
	PushButton( WINDOW_MOREBUTTON )
{
	ImplInit( pParent, nStyle );
}

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

MoreButton::MoreButton( Window* pParent, const ResId& rResId ) :
	PushButton( WINDOW_MOREBUTTON )
{
	rResId.SetRT( RSC_MOREBUTTON );
	WinBits nStyle = ImplInitRes( rResId );
	ImplInit( pParent, nStyle );
	ImplLoadRes( rResId );

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

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

void MoreButton::ImplLoadRes( const ResId& rResId )
{
	PushButton::ImplLoadRes( rResId );

	sal_uLong nObjMask = ReadLongRes();

	if ( nObjMask & RSC_MOREBUTTON_STATE )
	{
		// Nicht Methode rufen, da Dialog nicht umgeschaltet werden soll
		mbState = (sal_Bool)ReadShortRes();
		// SetText( GetText() );
        ShowState();
	}
	if ( nObjMask & RSC_MOREBUTTON_MAPUNIT )
		meUnit = (MapUnit)ReadLongRes();
	if ( nObjMask & RSC_MOREBUTTON_DELTA )
		// Groesse fuer Erweitern des Dialogs
		mnDelta = ReadShortRes();
}

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

MoreButton::~MoreButton()
{
	if ( mpMBData->mpItemList )
		delete mpMBData->mpItemList;
    delete mpMBData;
}

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

void MoreButton::Click()
{
	Window* 	pParent = GetParent();
	Size		aSize( pParent->GetSizePixel() );
	Window* 	pWindow = (mpMBData->mpItemList) ? mpMBData->mpItemList->First() : NULL;
	long		nDeltaPixel = LogicToPixel( Size( 0, mnDelta ), meUnit ).Height();

	// Status aendern
	mbState = !mbState;
    ShowState();

	// Je nach Status die Fenster updaten
	if ( mbState )
	{
		// Fenster anzeigen
		while ( pWindow )
		{
			pWindow->Show();
			pWindow = mpMBData->mpItemList->Next();
		}

		// Dialogbox anpassen
		Point aPos( pParent->GetPosPixel() );
		Rectangle aDeskRect( pParent->ImplGetFrameWindow()->GetDesktopRectPixel() );

		aSize.Height() += nDeltaPixel;
		if ( (aPos.Y()+aSize.Height()) > aDeskRect.Bottom() )
		{
			aPos.Y() = aDeskRect.Bottom()-aSize.Height();

			if ( aPos.Y() < aDeskRect.Top() )
				aPos.Y() = aDeskRect.Top();

			pParent->SetPosSizePixel( aPos, aSize );
		}
		else
			pParent->SetSizePixel( aSize );
	}
	else
	{
		// Dialogbox anpassen
		aSize.Height() -= nDeltaPixel;
		pParent->SetSizePixel( aSize );

		// Fenster nicht mehr anzeigen
		while ( pWindow )
		{
			pWindow->Hide();
			pWindow = mpMBData->mpItemList->Next();
		}
	}
	PushButton::Click();
}

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

void MoreButton::AddWindow( Window* pWindow )
{
	if ( !mpMBData->mpItemList )
		mpMBData->mpItemList = new ImplMoreWindowList( 1024, 16, 16 );

	mpMBData->mpItemList->Insert( pWindow, LIST_APPEND );

	if ( mbState )
		pWindow->Show();
	else
		pWindow->Hide();
}

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

void MoreButton::RemoveWindow( Window* pWindow )
{
	if ( mpMBData->mpItemList )
		mpMBData->mpItemList->Remove( pWindow );
}

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

void MoreButton::SetText( const XubString& rText )
{
	PushButton::SetText( rText );
}

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

XubString MoreButton::GetText() const
{
	return PushButton::GetText();
}

// -----------------------------------------------------------------------
void MoreButton::SetMoreText( const XubString& rText )
{
	if ( mpMBData )
        mpMBData->maMoreText = rText;

    if ( !mbState )
        SetText( rText );
}

// -----------------------------------------------------------------------
XubString MoreButton::GetMoreText() const
{
	if ( mpMBData )
        return mpMBData->maMoreText;
    else
        return PushButton::GetText();
}

// -----------------------------------------------------------------------
void MoreButton::SetLessText( const XubString& rText )
{
	if ( mpMBData )
        mpMBData->maLessText = rText;

    if ( mbState )
        SetText( rText );
}

// -----------------------------------------------------------------------
XubString MoreButton::GetLessText() const
{
	if ( mpMBData )
        return mpMBData->maLessText;
    else
        return PushButton::GetText();
}