/**
 * @file XTPComboBoxTheme.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/XTPFramework.h"
#include "Common/XTPSystemHelpers.h"
#include "Common/XTPSynchro.h"
#include "Common/XTPApplication.h"
#include "Common/XTPSingleton.h"
#include "Common/XTPGdiObjects.h"
#include "Common/XTPWinThemeWrapper.h"
#include "Common/XTPMarkupRender.h"
#include "Common/XTPColorManager.h"
#include "Common/XTPDrawHelpers.h"

#include "Controls/Util/XTPControlTheme.h"
#include "Controls/Combo/XTPComboBox.h"
#include "Controls/Combo/XTPComboBoxTheme.h"

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

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

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CXTPComboBoxTheme::CXTPComboBoxTheme()
	: m_nThumbWidth(0)
{
	m_themeComboBox = new CXTPWinThemeWrapper();
}

CXTPComboBoxTheme::~CXTPComboBoxTheme()
{
	SAFE_DELETE(m_themeComboBox);
}

void CXTPComboBoxTheme::RefreshMetrics(CXTPComboBox* pComboBox)
{
	RefreshXtremeColors(FALSE);

	// Set default theme colors.
	const COLORREF clrShadow = GetSysColor(COLOR_3DSHADOW);
	m_clrBorderDisabled.SetStandardValue(clrShadow);
	m_clrBorderNormal.SetStandardValue(clrShadow);
	m_clrBorderHot.SetStandardValue(clrShadow);

	const COLORREF clrBtnFace = GetSysColor(COLOR_BTNFACE);
	m_clrButtonNormal.SetStandardValue(clrBtnFace);
	m_clrButtonHot.SetStandardValue(clrBtnFace);
	m_clrButtonPressed.SetStandardValue(clrBtnFace);

	const COLORREF clrBtnText = GetXtremeColor(COLOR_BTNTEXT);
	m_clrButtonArrowNormal.SetStandardValue(clrBtnText);
	m_clrButtonArrowHot.SetStandardValue(clrBtnText);
	m_clrButtonArrowPressed.SetStandardValue(clrBtnText);

	m_clrBackground.SetStandardValue(GetXtremeColor(COLOR_WINDOW));
	m_clrBackDisabled.SetStandardValue(GetXtremeColor(COLOR_3DFACE));
	m_clrBackHighlight.SetStandardValue(GetXtremeColor(COLOR_HIGHLIGHT));

	m_clrText.SetStandardValue(GetXtremeColor(COLOR_WINDOWTEXT));
	m_clrTextDisabled.SetStandardValue(GetXtremeColor(COLOR_GRAYTEXT));
	m_clrTextHighlight.SetStandardValue(GetXtremeColor(COLOR_HIGHLIGHTTEXT));

	m_themeComboBox->OpenThemeData(NULL, L"COMBOBOX");

	// Init thumb width.
	if (pComboBox->GetSafeHwnd())
	{
		CClientDC dc(pComboBox);
		CXTPFontDC font(&dc, pComboBox->GetFont());

		TEXTMETRIC tm;
		dc.GetTextMetrics(&tm);
		m_nThumbWidth = max(XTP_DPI_X(15), tm.tmAveCharWidth * 2 + XTP_DPI_X(4));

		m_nThumbWidth = min(m_nThumbWidth, GetSystemMetrics(SM_CXVSCROLL) + 1);
	}

	UpdateBackgroundBrush();
}

void CXTPComboBoxTheme::UpdateBackgroundBrush()
{
	m_xtpBrushBackground.DeleteObject();
	m_xtpBrushBackground.CreateSolidBrush(m_clrBackground);
}

BOOL CXTPComboBoxTheme::DrawComboBox(CDC* pDC, CXTPComboBox* pComboBox)
{
	CRect rc		 = pComboBox->GetComboBoxRect();
	BOOL bRightAlign = (0 != (pComboBox->GetExStyle() & WS_EX_RIGHT));

	CRect rcBtn(rc.right - m_nThumbWidth, rc.top, rc.right, rc.bottom);
	if (bRightAlign)
		rcBtn = CRect(rc.left, rc.top, rc.left + m_nThumbWidth, rc.bottom);

	rcBtn.DeflateRect(XTP_DPI_X(1), XTP_DPI_Y(1));

	DrawBackground(pDC, pComboBox);

	DrawButton(pDC, pComboBox, rcBtn);

	DrawButtonTriangle(pDC, pComboBox, rcBtn);

	return TRUE;
}

void CXTPComboBoxTheme::DrawFrame(HDC hdc, LPRECT lprc, int nSize, HBRUSH hBrush)
{
	CSize sz(nSize, nSize);
	FillSolidRect(hdc, lprc->left, lprc->top, lprc->right - lprc->left - sz.cx, sz.cy, hBrush);
	FillSolidRect(hdc, lprc->left, lprc->top, sz.cx, lprc->bottom - lprc->top - sz.cy, hBrush);
	FillSolidRect(hdc, lprc->right - sz.cx, lprc->top, sz.cx, lprc->bottom - lprc->top, hBrush);
	FillSolidRect(hdc, lprc->left, lprc->bottom - sz.cy, lprc->right - lprc->left, sz.cy, hBrush);
}

void CXTPComboBoxTheme::FillSolidRect(HDC hdc, int x, int y, int cx, int cy, HBRUSH hBrush)
{
	::FillRect(hdc, CRect(x, y, x + cx, y + cy), hBrush);
}

void CXTPComboBoxTheme::DrawBackground(CDC* pDC, CXTPComboBox* pComboBox)
{
	CRect rc		 = pComboBox->GetComboBoxRect();
	HBRUSH hBrush	= pComboBox->GetClientBrush(pDC);
	BOOL bRightAlign = (0 != (pComboBox->GetExStyle() & WS_EX_RIGHT));

	pDC->SelectClipRgn(NULL);

	DrawFrame(pDC->GetSafeHdc(), rc, 3, hBrush);

	if (bRightAlign)
		FillRect(pDC->GetSafeHdc(),
				 CRect(rc.left, rc.top, rc.left + GetSystemMetrics(SM_CXVSCROLL) + XTP_DPI_X(3),
					   rc.bottom),
				 hBrush);
	else
		FillRect(pDC->GetSafeHdc(),
				 CRect(rc.right - GetSystemMetrics(SM_CXVSCROLL) - XTP_DPI_X(3), rc.top, rc.right,
					   rc.bottom),
				 hBrush);
}

void CXTPComboBoxTheme::DrawButton(CDC* pDC, CXTPComboBox* pComboBox, CRect rcBtn)
{
	UNREFERENCED_PARAMETER(pDC);
	UNREFERENCED_PARAMETER(pComboBox);
	UNREFERENCED_PARAMETER(rcBtn);
}

void CXTPComboBoxTheme::DrawButtonTriangle(CDC* pDC, CXTPComboBox* pComboBox, CRect rcBtn)
{
	ASSERT_VALID(pDC);
	ASSERT_VALID(pComboBox);

	BOOL bPressed  = pComboBox->IsDroppedDown();
	BOOL bSelected = pComboBox->IsFocused() || pComboBox->IsHighlighted();
	BOOL bEnabled  = pComboBox->IsWindowEnabled();

	CPoint point;
	point.x = rcBtn.CenterPoint().x - XTP_DPI_X(12) / 2;
	point.y = rcBtn.CenterPoint().y - XTP_DPI_Y(12) / 2;
	CRect rc(point.x, point.y, point.x + XTP_DPI_X(12), point.y + XTP_DPI_Y(12));

	XTPPrimitiveDrawer()->DrawSymbol(pDC, xtpPrimitiveSymbolPlayDown, rc,
									 !bEnabled
										 ? GetXtremeColor(XPCOLOR_DISABLED)
										 : bPressed
											   ? m_clrButtonArrowPressed.operator COLORREF()
											   : bSelected
													 ? m_clrButtonArrowHot.operator COLORREF()
													 : m_clrButtonArrowNormal.operator COLORREF());

	if (!bEnabled && pComboBox->GetFlatStyle()) // draw line vertical line when disabled and flat
	{
		CXTPPenDC pen(pDC->GetSafeHdc(), m_clrButtonNormal);
		pDC->MoveTo(rcBtn.left - 1, rcBtn.top);
		pDC->LineTo(rcBtn.left - 1, rcBtn.bottom);
	}
}