// DynamicLayoutExport.cpp: implementation of the CDynamicLayout class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "DynamicLayoutExport.h"
#include "LayoutControl.h"
#include "LayoutPanelFrame.h"
#include "LayoutSplit.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

#ifndef GET_X_LPARAM
#define GET_X_LPARAM(lp) (int)(short)(LOWORD(lp))
#define GET_Y_LPARAM(lp) (int)(short)(HIWORD(lp))
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
namespace DynamicLayout
{
	//初始化默认值
	CDynamicLayout::CDynamicLayout():m_wndOwner(NULL),m_pMainPanel(NULL)
	{
		m_szMin = 0;
		m_szMax = 0;
	}
	
	CDynamicLayout::~CDynamicLayout()
	{
		if( m_pMainPanel != NULL )
			delete m_pMainPanel;
	}
	
	//初始化状态值
	void CDynamicLayout::InitLayout(CWnd* pOwner)
	{
		LAYOUT_ASSERT( pOwner != NULL,_T("为CDynamicLayout类对象指定的拥有者pOwner不能为空！") );
		LAYOUT_ASSERT( pOwner->IsKindOf(RUNTIME_CLASS(CWnd)),_T("为CDynamicLayout类对象指定的拥有者pOwner必须为CWnd或其派生类!"));
		if( !pOwner->IsKindOf(RUNTIME_CLASS(CWnd)) )	return;

		m_wndOwner = pOwner;
		if( m_pMainPanel != NULL )	delete m_pMainPanel;
		m_pMainPanel = new CLayoutPanelFrame(pOwner,LAYOUT_LOCK,LAYOUT_LOCK,LAYOUT_LOCK,LAYOUT_LOCK);
		m_mapPanel.SetAt( _T(""),m_pMainPanel );

 		CRect rect;
 		pOwner->GetClientRect( rect );
 		m_pMainPanel->SetRect( rect );
	}
	
	void CDynamicLayout::SetDialogMinSize( int cx, int cy )
	{
		LAYOUT_ASSERT( cx >0 && cy > 0,_T("指定对话框的最小大小，数值无效。") );
		
		m_szMin.cx = cx;
		m_szMin.cy = cy;
		if( m_szMin.cx > m_szMax.cx )
			m_szMax.cx = m_szMin.cx;
		if( m_szMin.cy > m_szMin.cy )
			m_szMax.cy = m_szMin.cy;
	}
	
	void CDynamicLayout::SetDialogMaxSize(int cx, int cy)
	{
		LAYOUT_ASSERT( cx >0 && cy >0, _T("指定对话框的最大大小，数值无效。") );
		
		m_szMax.cx = cx;
		m_szMax.cy = cy;
		if( m_szMin.cx > m_szMax.cx )
			m_szMax.cx = m_szMin.cx;
		if( m_szMin.cy > m_szMin.cy )
			m_szMax.cy = m_szMin.cy;
	}

	//获取名称对应的Panel
	CLayoutPanel* CDynamicLayout::GetPanel( Panel Name )
	{
		LAYOUT_ASSERT( m_pMainPanel != NULL,_T("[致命错误]调用CDynamicLayout其它成员之前，请先调用InitLayout(this)!") );
		
		CLayoutPanel* pPanel = NULL;
		m_mapPanel.Lookup(Name,(void*&)pPanel);
		
		LAYOUT_ASSERT( pPanel != NULL,_T("[致命错误] 指定的Panel[")+Name+_T("]不存在！"));
		return pPanel;
	}
	
	//在指定的Panel下添加一个Panel
	void CDynamicLayout::AddPanel(Panel Name,Panel Owner/* =_T("") */,Layout top/* =LAYOUT_LOCK */,Layout bottom/* =LAYOUT_UNLOCK */,Layout left/* =LAYOUT_LOCK */,Layout right/* =LAYOUT_UNLOCK */)
	{
		LAYOUT_ASSERT( !Name.IsEmpty(),_T("[严重错误]添加Panal时，名称不能为空！") );
		LAYOUT_ASSERT( m_pMainPanel != NULL,_T("[致命错误]添加布局之前，请调用InitLayout(pOwner)!") );
		
		CLayoutPanel* pPanal = NULL;
		if( !m_mapPanel.Lookup(Name,(void*&)pPanal) )
		{
			pPanal = new CLayoutPanel(m_wndOwner,top,bottom,left,right);
			GetPanel( Owner )->AddLayout( pPanal );
			m_mapPanel.SetAt( Name, pPanal );	
		}else{
			LAYOUT_ASSERT( false,_T("新添加的Panal[")+Name+_T("]，该名称已存在！")  );
		}
	}
	
	//添加控件(ID)到指定的Panel
	void CDynamicLayout::AddControl( UINT nID, Panel Owner/*=_T("")*/,Layout top/*=LAYOUT_LOCK*/,Layout bottom/*=LAYOUT_UNLOCK*/,Layout left/*=LAYOUT_LOCK*/,Layout right/*=LAYOUT_UNLOCK*/ )
	{
		LAYOUT_ASSERT( m_pMainPanel != NULL,_T("添加控件布局之前，请调用InitLayout(pOwner)!"));
		CWnd* pCtrl = m_wndOwner->GetDlgItem(nID);
		LAYOUT_ASSERT( pCtrl!=NULL,_T("[致命错误]添加控件布局时，指定的ID无效"));

		AddControl( pCtrl, Owner, top, bottom, left, right );
	}

	//添加控件(窗口指针)到指定Panel
	void CDynamicLayout::AddControl( CWnd* pCtrl,Panel Owner/*=_T("")*/,Layout top/*=LAYOUT_LOCK*/,Layout bottom/*=LAYOUT_UNLOCK*/,Layout left/*=LAYOUT_LOCK*/,Layout right/*=LAYOUT_UNLOCK*/ )
	{
		CLayoutControl* pControl = new CLayoutControl(m_wndOwner,pCtrl,top,bottom,left,right);
		GetPanel( Owner )->AddLayout( pControl );
	}
	
	void CDynamicLayout::UpdateLayout()
	{
		LAYOUT_ASSERT( m_pMainPanel != NULL,_T("[致命错误]调用CDynamicLayout::UpdateLayout()之前，请先调用CDynamicLayout::InitLayout(pOwner)!"));
		m_pMainPanel->UpdateLayout();
	}
	
	LRESULT CDynamicLayout::FilterDynamicLayoutMessage( UINT& message, WPARAM& wParam, LPARAM& lParam )
	{
		if( m_wndOwner == NULL || m_pMainPanel == NULL )
			return FALSE;
		
		switch( message )
		{
		case WM_PAINT:
			OnPaint();
			break;
		case WM_SIZE:
			{
				if( wParam == SIZE_MAXSHOW )
				{
					OnPaint();
				}
				else if( wParam != SIZE_MINIMIZED )
				{
					CRect rect(CPoint(0,0),CSize((DWORD)lParam));
					m_pMainPanel->SetRect( rect );
					
					if( m_pMainPanel->NeedInvalidate() )
						m_wndOwner->Invalidate();
					OnPaint();
				}
				break;
			}
			
		case WM_SIZING:
			{
				RECT* pRect = (RECT*)lParam;
	
				if( m_szMin.cx > 0 && pRect->right-pRect->left < m_szMin.cx )
						pRect->right = pRect->left + m_szMin.cx;
				if( m_szMin.cy > 0 && pRect->bottom - pRect->top < m_szMin.cy )
						pRect->bottom = pRect->top + m_szMin.cy;
				if( m_szMax.cx > 0 && pRect->right - pRect->left > m_szMax.cx )
						pRect->right = pRect->left + m_szMax.cx;
				if( m_szMax.cy > 0 && pRect->bottom - pRect->top > m_szMax.cy )
						pRect->bottom = pRect->top + m_szMax.cy;
				break;
			}
		case WM_LBUTTONDOWN:
			OnLButtonDown( GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) );
			break;
		case WM_MOUSEMOVE:
			{
				OnMouseMove( GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) );
				break;
			}
		case WM_LBUTTONUP:
			{
				OnLButtonUp( GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) );
				break;
			}
		default:
			break;
		}
		
		return FALSE;
	}
	
	void CDynamicLayout::OnLButtonDown(int x, int y)
	{
		CLayoutPanel* pPanel;
		CLayoutSplit* pSplit;
		POSITION pos = m_mapSplit.GetStartPosition();
		while( pos != NULL )
		{
			m_mapSplit.GetNextAssoc(pos,(void*&)pPanel,(void*&)pSplit );
			if( pSplit->OnLButtonDown(x,y) ) break;
		}		
	}
	
	void CDynamicLayout::OnLButtonUp(int x, int y)
	{
		CLayoutPanel* pPanel;
		CLayoutSplit* pSplit;
		POSITION pos = m_mapSplit.GetStartPosition();
		while( pos != NULL )
		{
			m_mapSplit.GetNextAssoc(pos,(void*&)pPanel,(void*&)pSplit );
			if( pSplit->OnLButtonUp(x,y) )
			{
				AfxBeginThread(WhenEndSplit,this);//跳出当前线程，刷新界面显示
				break;
			}
		}
	}
	
	void CDynamicLayout::OnMouseMove(int x, int y )
	{
		CLayoutPanel* pPanel;
		CLayoutSplit* pSplit;
		POSITION pos = m_mapSplit.GetStartPosition();
		while( pos != NULL )
		{
			m_mapSplit.GetNextAssoc(pos,(void*&)pPanel,(void*&)pSplit );
			if( pSplit->OnMouseMove(x,y) ) break;
		}
	}
	
	//显示/隐藏布局包括子布局
	void CDynamicLayout::ShowLayout(Panel Name /* = _T("")*/,BOOL bShow /* = FALSE */)
	{
		GetPanel( Name )->Show( bShow );
		m_wndOwner->Invalidate(FALSE);
	}

	//显示/不显示Panel
	void CDynamicLayout::ShowPanel(Panel Name/* =_T */,BOOL bShow /* = FALSE */)
	{
		GetPanel( Name )->ShowBorder( bShow );
		m_wndOwner->Invalidate(FALSE);
	}
	
	void CDynamicLayout::OnPaint()
	{
		LAYOUT_ASSERT( m_pMainPanel != NULL,_T("[致命错误]未调用InitLayout(this)!") );
		m_pMainPanel->Draw( );
	}
	
	void CDynamicLayout::SetBkColor( Panel Name/*=_T("")*/,COLORREF dwColor/*=1*/ )
	{
		GetPanel( Name )->SetBkColor( dwColor );
		m_wndOwner->Invalidate(FALSE);
	}
	
	//设置/取消分割条
	void CDynamicLayout::SetSplit( Panel Name, BOOL bAdd /*= TRUE */ )
	{
		CLayoutPanel* pPanel = GetPanel( Name );
		if( bAdd )
		{
			CLayoutSplit* pSplit = pPanel->GetSplit();
			if( pSplit != NULL )
			{
				m_mapSplit.SetAt( pPanel, pSplit );
			}else{
				LAYOUT_ASSERT( pSplit != NULL, _T("Panel[")+Name+("]不符合分割条件，设置Split失败!") );
			}
		}else{
			pPanel->ClearSplit();
		}
	}
	
	//是否已存在命名为Name的Panel
	BOOL CDynamicLayout::IsPanelExist( Panel Name )
	{
		void* pTemp;
		return m_mapPanel.Lookup( Name, pTemp );
	}
	
	UINT CDynamicLayout::WhenEndSplit( LPVOID lParam )
	{
		CDynamicLayout* pThis = (CDynamicLayout*)lParam;
		Sleep(1);
		pThis->m_wndOwner->Invalidate();
		Sleep(1);
		pThis->m_pMainPanel->Draw();
		return 0;
	}
}