#include "stdafx.h"
#include "SLTDlg.h"

IMPLEMENT_DYNAMIC(CSLTDlg, CDialog)

CSLTDlg::CSLTDlg(CWnd* pParent /*=nullptr*/)
	: CDialog(IDD_DLG_SLT, pParent)
	, m_sPicturePath(_T(""))
	, m_hBitmap(NULL)
{
}

CSLTDlg::~CSLTDlg()
{
	if (m_hBitmap)
		::DeleteObject(m_hBitmap);
}

void CSLTDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BOOL CSLTDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	refresh(NULL);
	return TRUE;
}

BEGIN_MESSAGE_MAP(CSLTDlg, CDialog)
	ON_WM_PAINT()
	ON_MESSAGE( WM_ACAD_KEEPFOCUS, &CSLTDlg::onAcadKeepFocus )
END_MESSAGE_MAP()


void CSLTDlg::OnPaint()
{
	CPaintDC dc(this);

	CBitmap *pBitmap = CBitmap::FromHandle(m_hBitmap);
	if (!pBitmap) return;

	BITMAP bmp;
	pBitmap->GetBitmap(&bmp);

	CRect rc;
	GetClientRect(rc);

	CDC memDc;
	CBitmap memBitmap;
	memDc.CreateCompatibleDC(&dc);
	CBitmap *pOldBit = memDc.SelectObject(pBitmap);
	dc.BitBlt(rc.left, rc.top, rc.Width(), rc.Height(), &memDc, 0, 0, SRCCOPY);
	memDc.SelectObject(pBitmap);
}

LONG_PTR CSLTDlg::onAcadKeepFocus(UINT_PTR, LONG_PTR)
{
	POINT pt;
	::GetCursorPos(&pt);
	CRect rect;
	GetWindowRect(&rect);
	if (!(rect.PtInRect(pt)))
	{
		return FALSE;
	}
	return TRUE;
}

void CSLTDlg::setPicture(LPCTSTR pszPath, CWnd *pParent)
{
	if (!pszPath) return;
	if (_taccess(pszPath, 0x00) != 0x00) return;
	m_sPicturePath = pszPath;
	refresh(pParent);
}

bool CSLTDlg::isSamePicture(LPCTSTR pszPath)
{
	if (!pszPath) return false;
	if (m_sPicturePath.CompareNoCase(pszPath) == 0) return true;
	return false;
}

void CSLTDlg::refresh(CWnd *pParent)
{
	if (m_hBitmap)
		::DeleteObject(m_hBitmap);

	m_hBitmap = (HBITMAP)::LoadImage(0, m_sPicturePath, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);

	CBitmap *pBitmap = CBitmap::FromHandle(m_hBitmap);
	if (pBitmap)
	{
		BITMAP bmp;
		pBitmap->GetBitmap(&bmp);
		CRect rc1, rc2;
		GetWindowRect(rc1);
		GetClientRect(rc2);
		int deltaW = rc1.Width() - rc2.Width();
		int deltaH = rc1.Height() - rc2.Height();
		rc1.right = rc1.left + bmp.bmWidth + deltaW;
		rc1.bottom = rc1.top + bmp.bmHeight + deltaH;
		if (pParent)
		{
			pParent->GetWindowRect(rc2);
			CRect rc(CPoint(rc2.right, rc2.top), rc1.Size());
			MoveWindow(rc);
		}
		else
			MoveWindow(rc1);
	}
}