#include "stdafx.h"
#include "SelectBlkDlg.h"

CSelectBlkDlg::CSelectBlkDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSelectBlkDlg::IDD, pParent)
{
	m_staticSlide.m_iRowNum = 3;
	m_staticSlide.m_iColNum = 3;
}


void CSelectBlkDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_SCROLLBAR_BLK, m_vsBar);
	DDX_Control(pDX, IDC_STATIC_PREVIEW, m_staticSlide);
}


BEGIN_MESSAGE_MAP(CSelectBlkDlg, CDialog)
	ON_WM_LBUTTONDOWN()
	ON_WM_RBUTTONDOWN()
	ON_WM_VSCROLL()
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSelectBlkDlg message handlers

BOOL CSelectBlkDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	CRect rect;
	this->GetWindowRect(&rect);
	CPoint pt2;
	pt2.x = m_ptBase.x + rect.Width();
	pt2.y = m_ptBase.y + rect.Height();
	CRect rect2(m_ptBase, pt2);
	this->MoveWindow(&rect2);
	m_staticSlide.ResetSource(m_csTkName, m_csType, -1, 0, 0);
	InitVSBar();
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CSelectBlkDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CDialog::OnLButtonDown(nFlags, point);
	CDialog::OnOK();
}

void CSelectBlkDlg::OnRButtonDown(UINT nFlags, CPoint point) 
{
	CDialog::OnRButtonDown(nFlags, point);
	CDialog::OnCancel();
}


BOOL CSelectBlkDlg::PreTranslateMessage(MSG* pMsg) 
{
	if(pMsg->message == 280) //点击对话框外
		CDialog::OnCancel();
	else if(pMsg->message == WM_KEYDOWN && (pMsg->wParam == VK_UP || pMsg->wParam == VK_PRIOR))
		m_staticSlide.OnPgup();	
	else if(pMsg->message == WM_KEYDOWN && (pMsg->wParam == VK_DOWN || pMsg->wParam == VK_NEXT))
		m_staticSlide.OnPgdown();	
	return CDialog::PreTranslateMessage(pMsg);
}
 

BOOL CSelectBlkDlg::InitVSBar()  
{
    int totalRec, pageSize, imageRowNum, imageColNum;
    imageRowNum = m_staticSlide.m_iRowNum;
    imageColNum = m_staticSlide.m_iColNum;
    pageSize = imageRowNum * imageColNum;
    
    totalRec = (int)m_staticSlide.m_lstSlide.GetCount();
    if(totalRec <= pageSize || totalRec == 0){
        m_vsBar.ShowScrollBar(FALSE);
        CRect rect;
        this->GetWindowRect(&rect);
        rect.right -= 20;
        this->MoveWindow(&rect);
        
        return FALSE;
    }
    else
        m_vsBar.ShowScrollBar(TRUE);
    SCROLLINFO scrollInfo;
    scrollInfo.cbSize = sizeof(SCROLLINFO);
    scrollInfo.fMask = SIF_ALL; 
    scrollInfo.nMin = 0;
    scrollInfo.nMax = ((totalRec-1) / pageSize+1) * imageRowNum-1; 
    scrollInfo.nPage = imageRowNum; 
    scrollInfo.nPos = m_staticSlide.m_iPage * imageRowNum;  
    m_vsBar.SetScrollInfo(&scrollInfo, TRUE);
    return TRUE;
}

void CSelectBlkDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
    if(pScrollBar != &m_vsBar){
        CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
        return;
    }
	UINT nEndPos = pScrollBar->GetScrollPos();
   	switch(nSBCode){
    case SB_THUMBPOSITION:  //拖动滑块
        m_staticSlide.GoPage(nPos/m_staticSlide.m_iRowNum);	
        nEndPos = nPos;
        break;
    case SB_LINEDOWN:
        m_staticSlide.OnPgdown();
        nEndPos += m_staticSlide.m_iRowNum;
        break;
    case SB_LINEUP:
        m_staticSlide.OnPgup();
        nEndPos -= m_staticSlide.m_iRowNum;
        break;
    case SB_PAGEDOWN:
        m_staticSlide.OnPgdown();	
        nEndPos += m_staticSlide.m_iRowNum;
        break;
    case SB_PAGEUP:
        m_staticSlide.OnPgup();
        nEndPos -= m_staticSlide.m_iRowNum;
        break;
    }
    pScrollBar->SetScrollPos(nEndPos);
	CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}