/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/


#include "precompiled_reportdesign.hxx"
#include "StartMarker.hxx"
#include <vcl/image.hxx>
#include <vcl/svapp.hxx>
#include "RptResId.hrc"
#include "ModuleHelper.hxx"
#include "ColorChanger.hxx"
#include "ReportDefines.hxx"
#include "SectionWindow.hxx"
#include "helpids.hrc"
#include <vcl/help.hxx>
#include <vcl/gradient.hxx>
#include <vcl/lineinfo.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <unotools/syslocale.hxx>
#include <svl/smplhint.hxx>

#define CORNER_SPACE	 5

//=====================================================================
namespace rptui
{
//=====================================================================

Image*	OStartMarker::s_pDefCollapsed		= NULL;
Image*	OStartMarker::s_pDefExpanded		= NULL;
Image*	OStartMarker::s_pDefCollapsedHC	= NULL;
Image*	OStartMarker::s_pDefExpandedHC	= NULL;
oslInterlockedCount OStartMarker::s_nImageRefCount	= 0;

DBG_NAME( rpt_OStartMarker )
// -----------------------------------------------------------------------------
OStartMarker::OStartMarker(OSectionWindow* _pParent,const ::rtl::OUString& _sColorEntry)
: OColorListener(_pParent,_sColorEntry)
,m_aVRuler(this,WB_VERT)
,m_aText(this,WB_HYPHENATION)
,m_aImage(this,WB_LEFT|WB_TOP|WB_SCALE)
,m_pParent(_pParent)
,m_bShowRuler(sal_True)
{
	DBG_CTOR( rpt_OStartMarker,NULL);
	SetUniqueId(HID_RPT_STARTMARKER);

	osl_incrementInterlockedCount(&s_nImageRefCount);
	initDefaultNodeImages();
    ImplInitSettings();
    m_aText.SetHelpId(HID_RPT_START_TITLE);
    m_aText.SetPaintTransparent(sal_True);
    m_aImage.SetHelpId(HID_RPT_START_IMAGE);
    m_aText.Show();
    m_aImage.Show();
	m_aVRuler.Show();
	m_aVRuler.Activate();
	m_aVRuler.SetPagePos(0);
	m_aVRuler.SetBorders();
	m_aVRuler.SetIndents();
	m_aVRuler.SetMargin1();
	m_aVRuler.SetMargin2();
    const MeasurementSystem eSystem = SvtSysLocale().GetLocaleData().getMeasurementSystemEnum();
    m_aVRuler.SetUnit(MEASURE_METRIC == eSystem ? FUNIT_CM : FUNIT_INCH);
    EnableChildTransparentMode( sal_True );
    SetParentClipMode( PARENTCLIPMODE_NOCLIP );
    SetPaintTransparent( sal_True );
}
// -----------------------------------------------------------------------------
OStartMarker::~OStartMarker()
{
	DBG_DTOR( rpt_OStartMarker,NULL);	
	if ( osl_decrementInterlockedCount(&s_nImageRefCount) == 0 )
	{
		DELETEZ(s_pDefCollapsed);
		DELETEZ(s_pDefExpanded);
		DELETEZ(s_pDefCollapsedHC);
		DELETEZ(s_pDefExpandedHC);
	} // if ( osl_decrementInterlockedCount(&s_nImageRefCount) == 0 )
}
// -----------------------------------------------------------------------------
sal_Int32 OStartMarker::getMinHeight() const
{
    Fraction aExtraWidth(long(2*REPORT_EXTRA_SPACE));
    aExtraWidth *= GetMapMode().GetScaleX();
	return LogicToPixel(Size(0,m_aText.GetTextHeight())).Height() + (long)aExtraWidth;
}
// -----------------------------------------------------------------------------
void OStartMarker::Paint( const Rectangle& rRect )
{
    (void)rRect;
    //SetUpdateMode(sal_False);
	Size aSize = GetOutputSizePixel();
    long nSize = aSize.Width();
    const long nCornerWidth = long(CORNER_SPACE * (double)GetMapMode().GetScaleX());

    if ( isCollapsed() )
    {
        SetClipRegion();
    }
    else
    {
        const long nVRulerWidth = m_aVRuler.GetSizePixel().Width();
        nSize = aSize.Width() - nVRulerWidth/* - m_nCornerSize*/;
        aSize.Width() += nCornerWidth;
        SetClipRegion(Region(PixelToLogic(Rectangle(Point(),Size(nSize,aSize.Height())))));
    }        

    const Point aGcc3WorkaroundTemporary;
	Rectangle aWholeRect(aGcc3WorkaroundTemporary,aSize);
	{
        const ColorChanger aColors( this, m_nTextBoundaries, m_nColor );
        PolyPolygon aPoly;
        aPoly.Insert(Polygon(aWholeRect,nCornerWidth,nCornerWidth));

        Color aStartColor(m_nColor);
        aStartColor.IncreaseLuminance(10);
        sal_uInt16 nHue = 0;
        sal_uInt16 nSat = 0;
        sal_uInt16 nBri = 0;
        aStartColor.RGBtoHSB(nHue, nSat, nBri);
        nSat += 40;
        Color aEndColor(Color::HSBtoRGB(nHue, nSat, nBri));
        Gradient aGradient(GRADIENT_LINEAR,aStartColor,aEndColor);
        aGradient.SetSteps(static_cast<sal_uInt16>(aSize.Height()));

        DrawGradient(PixelToLogic(aPoly) ,aGradient);
	}
    if ( m_bMarked )
	{
        const long nCornerHeight = long(CORNER_SPACE * (double)GetMapMode().GetScaleY());
        Rectangle aRect( Point(nCornerWidth,nCornerHeight),
		                 Size(aSize.Width() - nCornerWidth - nCornerWidth,aSize.Height() - nCornerHeight - nCornerHeight));
        ColorChanger aColors( this, COL_WHITE, COL_WHITE );
        DrawPolyLine(Polygon(PixelToLogic(aRect)),LineInfo(LINE_SOLID,2 ));
	}
}
// -----------------------------------------------------------------------------
void OStartMarker::setColor()
{
    const Color aColor(m_nColor);
    Color aTextColor = GetTextColor();
	if ( aColor.GetLuminance() < 128 )
		aTextColor = COL_WHITE;
    m_aText.SetTextColor(aTextColor);
    m_aText.SetLineColor(m_nColor);
}
// -----------------------------------------------------------------------
void OStartMarker::MouseButtonUp( const MouseEvent& rMEvt )
{
	if ( !rMEvt.IsLeft() )
		return;
	
	Point aPos( rMEvt.GetPosPixel());

	const Size aOutputSize = GetOutputSizePixel();
	if( aPos.X() > aOutputSize.Width() || aPos.Y() > aOutputSize.Height() )
		return;
    Rectangle aRect(m_aImage.GetPosPixel(),m_aImage.GetSizePixel());
	if ( rMEvt.GetClicks() == 2 || aRect.IsInside( aPos ) )
	{
		m_bCollapsed = !m_bCollapsed;
        
        changeImage();

		m_aVRuler.Show(!m_bCollapsed && m_bShowRuler);
		if ( m_aCollapsedLink.IsSet() )
			m_aCollapsedLink.Call(this);
	}

	m_pParent->showProperties();
}
// -----------------------------------------------------------------------------
void OStartMarker::changeImage()
{
    Image* pImage = NULL;
    if ( GetSettings().GetStyleSettings().GetHighContrastMode() )
	    pImage = m_bCollapsed ? s_pDefCollapsedHC : s_pDefExpandedHC;
    else
	    pImage = m_bCollapsed ? s_pDefCollapsed : s_pDefExpanded;
    m_aImage.SetImage(*pImage);
}
// -----------------------------------------------------------------------
void OStartMarker::initDefaultNodeImages()
{
	if ( !s_pDefCollapsed )
    {
        s_pDefCollapsed     = new Image( ModuleRes( RID_IMG_TREENODE_COLLAPSED      ) );
	    s_pDefCollapsedHC   = new Image( ModuleRes( RID_IMG_TREENODE_COLLAPSED_HC   ) );
	    s_pDefExpanded      = new Image( ModuleRes( RID_IMG_TREENODE_EXPANDED       ) );
	    s_pDefExpandedHC    = new Image( ModuleRes( RID_IMG_TREENODE_EXPANDED_HC    ) );
    }

    Image* pImage = NULL;	
	if ( GetSettings().GetStyleSettings().GetHighContrastMode() )
	{
		pImage = m_bCollapsed ? s_pDefCollapsedHC : s_pDefExpandedHC;
	}
	else
	{
		pImage = m_bCollapsed ? s_pDefCollapsed : s_pDefExpanded;
	}
    m_aImage.SetImage(*pImage);
    m_aImage.SetMouseTransparent(sal_True);
    m_aImage.SetBackground();
    m_aText.SetBackground();
    m_aText.SetMouseTransparent(sal_True);
}
// -----------------------------------------------------------------------
void OStartMarker::ImplInitSettings()
{
    // SetBackground( Wallpaper( COL_YELLOW ));
	SetBackground( );
	SetFillColor( Application::GetSettings().GetStyleSettings().GetDialogColor() );
    setColor();
}
//------------------------------------------------------------------------------
void OStartMarker::Resize()
{
	const Size aOutputSize( GetOutputSizePixel() );
	const long nOutputWidth	 = aOutputSize.Width();
	const long nOutputHeight = aOutputSize.Height();

    const long nVRulerWidth = m_aVRuler.GetSizePixel().Width();
    const Point aRulerPos(nOutputWidth - nVRulerWidth,0);
    m_aVRuler.SetPosSizePixel(aRulerPos,Size(nVRulerWidth,nOutputHeight));

    Size aImageSize = m_aImage.GetImage().GetSizePixel();
    const MapMode& rMapMode = GetMapMode();
    aImageSize.Width() = long(aImageSize.Width() * (double)rMapMode.GetScaleX());
    aImageSize.Height() = long(aImageSize.Height() * (double)rMapMode.GetScaleY());

    Fraction aExtraWidth(long(REPORT_EXTRA_SPACE));
    aExtraWidth *= rMapMode.GetScaleX();

    Point aPos(aImageSize.Width() + (long)(aExtraWidth + aExtraWidth), aExtraWidth);
    const long nHeight = ::std::max<sal_Int32>(nOutputHeight - 2*aPos.Y(),LogicToPixel(Size(0,m_aText.GetTextHeight())).Height());
    m_aText.SetPosSizePixel(aPos,Size(aRulerPos.X() - aPos.X(),nHeight));
    
    aPos.X() = aExtraWidth;
    aPos.Y() += static_cast<sal_Int32>((LogicToPixel(Size(0,m_aText.GetTextHeight())).Height() - aImageSize.Height()) * 0.5) ;
    m_aImage.SetPosSizePixel(aPos,aImageSize);
}
// -----------------------------------------------------------------------------
void OStartMarker::setTitle(const String& _sTitle)
{
    m_aText.SetText(_sTitle);
}
// -----------------------------------------------------------------------------
void OStartMarker::Notify(SfxBroadcaster & rBc, SfxHint const & rHint)
{
    OColorListener::Notify(rBc, rHint);
    if (rHint.ISA(SfxSimpleHint)
        && (static_cast< SfxSimpleHint const & >(rHint).GetId()
            == SFX_HINT_COLORS_CHANGED))
    {
        setColor();
        Invalidate(INVALIDATE_CHILDREN);
	}
}
//----------------------------------------------------------------------------
void OStartMarker::showRuler(sal_Bool _bShow)
{
	m_bShowRuler = _bShow;
	m_aVRuler.Show(!m_bCollapsed && m_bShowRuler);
}
//------------------------------------------------------------------------------
void OStartMarker::RequestHelp( const HelpEvent& rHEvt )
{
	if( m_aText.GetText().Len())
	{
		// Hilfe anzeigen
		Rectangle aItemRect(rHEvt.GetMousePosPixel(),Size(GetSizePixel().Width(),getMinHeight()));
		//aItemRect = LogicToPixel( aItemRect );
		Point aPt = OutputToScreenPixel( aItemRect.TopLeft() );
		aItemRect.Left()   = aPt.X();
		aItemRect.Top()    = aPt.Y();
		aPt = OutputToScreenPixel( aItemRect.BottomRight() );
		aItemRect.Right()  = aPt.X();
		aItemRect.Bottom() = aPt.Y();
		if( rHEvt.GetMode() == HELPMODE_BALLOON )
			Help::ShowBalloon( this, aItemRect.Center(), aItemRect, m_aText.GetText());
		else
			Help::ShowQuickHelp( this, aItemRect, m_aText.GetText() );
	}
}
// -----------------------------------------------------------------------------
void OStartMarker::setCollapsed(sal_Bool _bCollapsed)
{ 
    OColorListener::setCollapsed(_bCollapsed);
    showRuler(_bCollapsed);
    changeImage();
}
// -----------------------------------------------------------------------
void OStartMarker::zoom(const Fraction& _aZoom)
{
    setZoomFactor(_aZoom,*this);
    m_aVRuler.SetZoom(_aZoom);
    setZoomFactor(_aZoom,m_aText);
    Resize();
    Invalidate();
}
// -----------------------------------------------------------------------
// =======================================================================
}
// =======================================================================