/**************************************************************
 * 
 * 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_svtools.hxx"

#define _SV_PRGSBAR_CXX

#include <tools/debug.hxx>
#include <vcl/status.hxx>
#include <svtools/prgsbar.hxx>

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

#define PROGRESSBAR_OFFSET			3
#define PROGRESSBAR_WIN_OFFSET		2

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

void ProgressBar::ImplInit()
{
	mnPercent	= 0;
	mbCalcNew	= sal_True;

	ImplInitSettings( sal_True, sal_True, sal_True );
}

static WinBits clearProgressBarBorder( Window* pParent, WinBits nOrgStyle )
{
    WinBits nOutStyle = nOrgStyle;
    if( pParent && (nOrgStyle & WB_BORDER) != 0 )
    {
        if( pParent->IsNativeControlSupported( CTRL_PROGRESS, PART_ENTIRE_CONTROL ) )
            nOutStyle &= WB_BORDER;
    }
    return nOutStyle;
}

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

ProgressBar::ProgressBar( Window* pParent, WinBits nWinStyle ) :
	Window( pParent, clearProgressBarBorder( pParent, nWinStyle ) )
{
	SetOutputSizePixel( Size( 150, 20 ) );
	ImplInit();
}

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

ProgressBar::ProgressBar( Window* pParent, const ResId& rResId ) :
	Window( pParent, rResId )
{
	ImplInit();
}

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

ProgressBar::~ProgressBar()
{
}

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

void ProgressBar::ImplInitSettings( sal_Bool bFont,
									sal_Bool bForeground, sal_Bool bBackground )
{
	const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();

/* !!! Derzeit unterstuetzen wir keine Textausgaben
	if ( bFont )
	{
		Font aFont;
		aFont = rStyleSettings.GetAppFont();
		if ( IsControlFont() )
			aFont.Merge( GetControlFont() );
		SetZoomedPointFont( aFont );
	}
*/

	if ( bBackground )
	{
        if( !IsControlBackground() &&
            IsNativeControlSupported( CTRL_PROGRESS, PART_ENTIRE_CONTROL ) )
        {
            if( (GetStyle() & WB_BORDER) )
                SetBorderStyle( WINDOW_BORDER_REMOVEBORDER );
            EnableChildTransparentMode( sal_True );
            SetPaintTransparent( sal_True );
            SetBackground();
            SetParentClipMode( PARENTCLIPMODE_NOCLIP );
        }
        else
        {
            Color aColor;
            if ( IsControlBackground() )
                aColor = GetControlBackground();
            else
                aColor = rStyleSettings.GetFaceColor();
            SetBackground( aColor );
        }
	}

	if ( bForeground || bFont )
	{
		Color aColor = rStyleSettings.GetHighlightColor();
		if ( IsControlForeground() )
			aColor = GetControlForeground();
		if ( aColor.IsRGBEqual( GetBackground().GetColor() ) )
		{
			if ( aColor.GetLuminance() > 100 )
				aColor.DecreaseLuminance( 64 );
			else
				aColor.IncreaseLuminance( 64 );
		}
		SetLineColor();
		SetFillColor( aColor );
/* !!! Derzeit unterstuetzen wir keine Textausgaben
		SetTextColor( aColor );
		SetTextFillColor();
*/
	}
}

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

void ProgressBar::ImplDrawProgress( sal_uInt16 nOldPerc, sal_uInt16 nNewPerc )
{
	if ( mbCalcNew )
	{
		mbCalcNew = sal_False;

		Size aSize = GetOutputSizePixel();
		mnPrgsHeight = aSize.Height()-(PROGRESSBAR_WIN_OFFSET*2);
		mnPrgsWidth = (mnPrgsHeight*2)/3;
		maPos.Y() = PROGRESSBAR_WIN_OFFSET;
		long nMaxWidth = (aSize.Width()-(PROGRESSBAR_WIN_OFFSET*2)+PROGRESSBAR_OFFSET);
		sal_uInt16 nMaxCount = (sal_uInt16)(nMaxWidth / (mnPrgsWidth+PROGRESSBAR_OFFSET));
		if ( nMaxCount <= 1 )
			nMaxCount = 1;
		else
		{
			while ( ((10000/(10000/nMaxCount))*(mnPrgsWidth+PROGRESSBAR_OFFSET)) > nMaxWidth )
				nMaxCount--;
		}
		mnPercentCount = 10000/nMaxCount;
		nMaxWidth = ((10000/(10000/nMaxCount))*(mnPrgsWidth+PROGRESSBAR_OFFSET))-PROGRESSBAR_OFFSET;
		maPos.X() = (aSize.Width()-nMaxWidth)/2;
	}

	::DrawProgress( this, maPos, PROGRESSBAR_OFFSET, mnPrgsWidth, mnPrgsHeight,
					nOldPerc*100, nNewPerc*100, mnPercentCount,
                    Rectangle( Point(), GetSizePixel() ) );
}

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

void ProgressBar::Paint( const Rectangle& )
{
	ImplDrawProgress( 0, mnPercent );
}

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

void ProgressBar::Resize()
{
	mbCalcNew = sal_True;
	if ( IsReallyVisible() )
		Invalidate();
}

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

void ProgressBar::SetValue( sal_uInt16 nNewPercent )
{
	DBG_ASSERTWARNING( nNewPercent <= 100, "StatusBar::SetProgressValue(): nPercent > 100" );

	if ( nNewPercent < mnPercent )
	{
		mbCalcNew = sal_True;
		mnPercent = nNewPercent;
		if ( IsReallyVisible() )
		{
			Invalidate();
			Update();
		}
	}
	else
	{
		ImplDrawProgress( mnPercent, nNewPercent );
		mnPercent = nNewPercent;
	}
}

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

void ProgressBar::StateChanged( StateChangedType nType )
{
/* !!! Derzeit unterstuetzen wir keine Textausgaben
	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();
	}

	Window::StateChanged( nType );
}

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

void ProgressBar::DataChanged( const DataChangedEvent& rDCEvt )
{
	if ( (rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
		 (rDCEvt.GetFlags() & SETTINGS_STYLE) )
	{
		ImplInitSettings( sal_True, sal_True, sal_True );
		Invalidate();
	}

	Window::DataChanged( rDCEvt );
}