#include "stdafx.h"
#include "CLCDGfx.h"
#include "CLCDObject.h"
#include "CLCDTextObject.h"

//************************************************************************
// constructor
//************************************************************************
CLCDTextObject::CLCDTextObject()
{
	// Initialize DRAWTEXTPARAMS
	memset(&m_dtp, 0, sizeof(DRAWTEXTPARAMS));
	m_dtp.cbSize = sizeof(DRAWTEXTPARAMS);
	
	// Initialize alignment
	m_iTextFormat = m_iTextAlignment = (DT_LEFT | DT_NOPREFIX);
}

//************************************************************************
// destructor
//************************************************************************
CLCDTextObject::~CLCDTextObject()
{
	if (m_hFont)
		DeleteObject(m_hFont);
}

//************************************************************************
// initializes the textobject
//************************************************************************
bool CLCDTextObject::Initialize()
{
	m_hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
	if (nullptr != m_hFont) {
		SetFontFaceName(L"Small Fonts");
		SetFontPointSize(6);
	}
	return true;
}

//************************************************************************
// deinitializes the textobject
//************************************************************************
bool CLCDTextObject::Shutdown()
{
	return true;
}

//************************************************************************
// draws the textobject
//************************************************************************
bool CLCDTextObject::Draw(CLCDGfx*)
{
	return true;
}

//************************************************************************
// updates the textobject
//************************************************************************
bool CLCDTextObject::Update()
{
	return true;
}

//************************************************************************
// sets the textobject's font
//************************************************************************
bool CLCDTextObject::SetFont(LOGFONT& lf)
{
	if (m_hFont) {
		DeleteObject(m_hFont);
		m_hFont = nullptr;
	}

	m_hFont = CreateFontIndirect(&lf);

	if (!m_hFont)
		return false;

	// Calculate the font's height 
	HDC hDC = CreateCompatibleDC(nullptr);
	SelectObject(hDC, m_hFont);
	TEXTMETRIC tmFontInfo;

	GetTextMetrics(hDC, &tmFontInfo);
	m_iFontHeight = tmFontInfo.tmHeight;

	DeleteObject(hDC);

	OnFontChanged();

	return true;
}

//************************************************************************
// sets the textobject's font's facename
//************************************************************************
void CLCDTextObject::SetFontFaceName(tstring strFontName)
{
	// if NULL, uses the default gui font
	if (strFontName.empty())
		return;

	LOGFONT lf;
	memset(&lf, 0, sizeof(lf));
	GetObject(m_hFont, sizeof(LOGFONT), &lf);

	wcsncpy(lf.lfFaceName, strFontName.c_str(), LF_FACESIZE);

	SetFont(lf);
}

//************************************************************************
// sets the textobject's font's point size
//************************************************************************
void CLCDTextObject::SetFontPointSize(int nPointSize)
{
	LOGFONT lf;
	memset(&lf, 0, sizeof(lf));
	GetObject(m_hFont, sizeof(LOGFONT), &lf);

	lf.lfHeight = -MulDiv(nPointSize, 96, 72);

	SetFont(lf);
}

//************************************************************************
// sets the textobject's font to italic
//************************************************************************
void CLCDTextObject::SetFontItalic(bool flag)
{
	LOGFONT lf;
	memset(&lf, 0, sizeof(lf));
	GetObject(m_hFont, sizeof(LOGFONT), &lf);

	lf.lfItalic = flag;

	SetFont(lf);
}

//************************************************************************
// sets the textobject's font's weight
//************************************************************************
void CLCDTextObject::SetFontWeight(int nWeight)
{
	LOGFONT lf;
	memset(&lf, 0, sizeof(lf));
	GetObject(m_hFont, sizeof(LOGFONT), &lf);

	lf.lfWeight = nWeight;

	SetFont(lf);
}

//************************************************************************
// sets the textobject's alignment
//************************************************************************
void CLCDTextObject::SetAlignment(int iAlignment)
{
	m_iTextFormat &= ~m_iTextAlignment;
	m_iTextFormat |= iAlignment;
	m_iTextAlignment = iAlignment;
}

//************************************************************************
// sets the textobject's wordwrap mode
//************************************************************************
void CLCDTextObject::SetWordWrap(bool bWrap)
{
	m_bWordWrap = bWrap;
	if (bWrap)
		m_iTextFormat |= DT_WORDBREAK;
	else
		m_iTextFormat &= ~DT_WORDBREAK;
}

//************************************************************************
// called when the textobject's font has changed
//************************************************************************
void CLCDTextObject::OnFontChanged()
{
}