/**
 * @file XTPPreviewHostWindow.cpp
 *
 * @copyright
 * (c) 1998-2025 Codejock Software, All Rights Reserved.
 *
 * This source file is the property of Codejock Software and must not be
 * redistributed by any means without the explicit written permission of
 * Codejock Software.
 *
 * The use of this source code is governed by the terms and conditions specified
 * in the Toolkit Pro license agreement. Codejock Software grants you, as a
 * single software developer, the limited right to use this software on one
 * computer only.
 *
 * Contact Information:
 * support@codejock.com
 * http://www.codejock.com
 *
 */

#include "stdafx.h"

#include "Common/XTPTypeId.h"
#include "Common/XTPCasting.h"
#include "Common/XTPFramework.h"
#include "Common/XTPSystemHelpers.h"
#include "Common/XTPSynchro.h"
#include "Common/XTPApplication.h"
#include "Common/XTPSingleton.h"
#include "Common/XTPGdiObjects.h"
#include "Common/XTPDrawHelpers.h"

#include "Controls/Preview/XTPPreviewAbstract.h"
#include "Controls/Preview/XTPPreviewHostWindow.h"
#include "Controls/Preview/XTPPreviewCtrl.h"

#include "Common/Base/Diagnostic/XTPDisableNoisyWarnings.h"

IMPLEMENT_DYNAMIC(CXTPPreviewHostWindow, CWnd)

CXTPPreviewHostWindow::CXTPPreviewHostWindow(CXTPPreviewCtrl* pPreviewCtrl)
	: m_pPreviewCtrl(pPreviewCtrl)
	, m_pPreview(NULL)
	, m_strMessage(_T(""))
{
	ASSERT_VALID(pPreviewCtrl);
}

CXTPPreviewHostWindow::~CXTPPreviewHostWindow()
{
	DeletePreview();
}

void CXTPPreviewHostWindow::ShowMessage(LPCTSTR message)
{
	m_strMessage = message;
	Invalidate();
	UpdateWindow();
}

#include "Common/Base/Diagnostic/XTPBeginAfxMap.h"
BEGIN_MESSAGE_MAP(CXTPPreviewHostWindow, CWnd)
	ON_WM_PAINT()
	ON_WM_DESTROY()
	ON_WM_ERASEBKGND()
END_MESSAGE_MAP()
#include "Common/Base/Diagnostic/XTPEndAfxMap.h"

void CXTPPreviewHostWindow::SetPreview(IXTPPreview* preview)
{
	DeletePreview();

	m_strMessage = _T("");
	m_pPreview   = preview;
	Invalidate();

	UpdateWindow();
}

BOOL CXTPPreviewHostWindow::OnWndMsg(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
	if (NULL != m_pPreview)
	{
		MSG msg;
		msg.hwnd	= m_hWnd;
		msg.lParam  = lParam;
		msg.wParam  = wParam;
		msg.message = message;
		if (m_pPreview->OnHostWndMsg(&msg, pResult))
			return TRUE;
	}

	return CWnd::OnWndMsg(message, wParam, lParam, pResult);
}

void CXTPPreviewHostWindow::OnPaint()
{
	CPaintDC dc(this);
	CXTPClientRect rcClient(this);

	if (NULL == m_pPreview)
	{
		if (!m_strMessage.IsEmpty())
		{
			CXTPDCSaveState dcState(&dc);
			dc.SelectObject(GetStockObject(DEFAULT_GUI_FONT));
			dc.SetBkMode(TRANSPARENT);

			if (COLORREF_NULL != GetBackgroundColor())
				dc.SetBkColor(GetBackgroundColor());
			if (COLORREF_NULL != GetForegroundColor())
				dc.SetTextColor(GetForegroundColor());

			dc.DrawText(m_strMessage, rcClient, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
		}

		return;
	}

	m_pPreview->Draw(dc, CSize(rcClient.Width(), rcClient.Height()), rcClient);
}

void CXTPPreviewHostWindow::OnDestroy()
{
	CWnd::OnDestroy();
	DeletePreview();
}

BOOL CXTPPreviewHostWindow::OnEraseBkgnd(CDC* pDC)
{
	ASSERT_VALID(pDC);

	if (COLORREF_NULL == GetBackgroundColor())
		return CWnd::OnEraseBkgnd(pDC);

	CXTPClientRect rc(this);
	pDC->FillSolidRect(&rc, GetBackgroundColor());

	return TRUE;
}

void CXTPPreviewHostWindow::DeletePreview()
{
	if (NULL != m_pPreview)
	{
		delete m_pPreview;
		m_pPreview = NULL;
	}
}

COLORREF CXTPPreviewHostWindow::GetBackgroundColor() const
{
	return m_pPreviewCtrl->GetBackgroundColor();
}

COLORREF CXTPPreviewHostWindow::GetForegroundColor() const
{
	return m_pPreviewCtrl->GetForegroundColor();
}

#include "Common/Base/Diagnostic/XTPEnableNoisyWarnings.h"