#include "stdafx.h"
#include "SAniWindow.h"
#include <animation/SInterpolatorImpl.h>
namespace SOUI
{
	SAniWindow::SAniWindow(void):m_nSteps(20),m_iAniStep(0),m_aniMode(AM_NONE), m_bSaveSize(true),m_bEnableAni(true)
	{
		m_bClipClient = TRUE;
		m_bDisplay = FALSE;
		m_aniInterpolator.Attach(SApplication::getSingleton().CreateInterpolatorByName(SLinearInterpolator::GetClassName()));
	}

	SAniWindow::~SAniWindow(void)
	{
	}

	void SAniWindow::OnNextFrame()
	{
		SASSERT(m_iAniStep<m_nSteps);
		SASSERT(m_aniMode != AM_NONE);
		m_iAniStep++;
		m_layoutParamTmp->SetSpecifiedSize(Vert, SLayoutSize((float)GetHeight(), SLayoutSize::px));
		RequestRelayout();
		UpdateWindow();
		if(m_iAniStep == m_nSteps)
		{
			if(m_aniMode == AM_HIDE)
			{
				m_aniMode = AM_NONE;
				m_iAniStep = 0;
				GetContainer()->UnregisterTimelineHandler(this);
				Invalidate();
				SWindow::OnShowWindow(false,NormalShow);
			}else
			{//animating show finish.
				m_aniMode = AM_NONE;
				m_iAniStep = 0;
				GetContainer()->UnregisterTimelineHandler(this);
			}
			m_bSaveSize = true;
		}
	}

	void SAniWindow::OnShowWindow(BOOL bShow, UINT nStatus)
	{
		if(nStatus == NormalShow && m_bEnableAni && m_szWnd.cx >0 && m_szWnd.cy>0)
		{
			if(m_aniMode != AM_NONE)
				return;
			if(bShow)
			{
				SWindow::OnShowWindow(bShow,nStatus);
				//start animator
				m_aniMode = AM_SHOW;
			}else
			{
				m_aniMode = AM_HIDE;
			}
			m_bSaveSize = false;
			m_iAniStep = 0;
			GetContainer()->RegisterTimelineHandler(this);
			m_layoutParamTmp->SetSpecifiedSize(Vert, SLayoutSize((float)GetHeight(), SLayoutSize::px));
		}else
		{
			SWindow::OnShowWindow(bShow,nStatus);
		}
	}

	int SAniWindow::OnCreate(void *)
	{
		__super::OnCreate(NULL);
		m_layoutParamTmp.Attach(__super::GetLayoutParam()->Clone());

		return 0;
	}

	BOOL SAniWindow::OnRelayout(const CRect &rcWnd)
	{
		BOOL bRet = __super::OnRelayout(rcWnd);
		if(m_bSaveSize)
		{
			m_szWnd = rcWnd.Size();
		}
		return bRet;
	}

	ILayoutParam * SAniWindow::GetLayoutParam() const
	{
		if (m_aniMode == AM_NONE)
			return __super::GetLayoutParam();
		else
			return m_layoutParamTmp;
	}

	int SAniWindow::GetHeight() const
	{
		SASSERT(m_aniMode != AM_NONE);
		int nHei = m_szWnd.cy;
		nHei = (int)(m_aniInterpolator->getInterpolation(m_iAniStep*1.f / m_nSteps)*nHei);
		if (m_aniMode == AM_HIDE)
			nHei = m_szWnd.cy - nHei;
		return nHei;
	}

	void SAniWindow::EnableAnimate(bool bEnable)
	{
		m_bEnableAni = bEnable;
	}

}