// FontEx.cpp: implementation of the CFontEx class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "FontEx.h"

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

IMPLEMENT_SERIAL( CFontEx, CFont, 100 )

CFontEx::CFontEx()
{

}

CFontEx::~CFontEx()
{

}

void CFontEx::Serialize(CArchive& ar)
{
LOGFONT logFont;

	if (ar.IsStoring())
	{// storing code
		if( GetSafeHandle() == NULL )
		{
			InitDefault();
		}
		GetLogFont( &logFont );

		ar.Write( &logFont, sizeof(LOGFONT) );
	}
	else
	{// loading code
		ar.Read( &logFont, sizeof(LOGFONT) );

		if( GetSafeHandle() != NULL )
		{
			DeleteObject();
		}
		CreateFontIndirect( &logFont );
	}
}

void CFontEx::InitDefault()
{
/*
CreateFont( int nHeight, int nWidth, int nEscapement, 
		   int nOrientation, int nWeight, BYTE bItalic, 
		   BYTE bUnderline, BYTE cStrikeOut, BYTE nCharSet, 
		   BYTE nOutPrecision, BYTE nClipPrecision, BYTE nQuality, 
		   BYTE nPitchAndFamily, LPCTSTR lpszFacename );
*/
	if( GetSafeHandle() != NULL )
	{
		DeleteObject();
	}
	CreateFont( 20, 0, 0, 
		   0, 0, 0, 
		   0, 0, DEFAULT_CHARSET, 
		   OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, 
		   DEFAULT_PITCH, NULL );
}

const CFont & CFontEx::operator=(CFont & font)
{
LOGFONT logFont;

	if( GetSafeHandle() != NULL )
	{
		DeleteObject();
	}

	if( font.GetSafeHandle() == NULL )
	{
		return font;
	}

	font.GetLogFont( &logFont );

	CreateFontIndirect( &logFont );

	return font;
}

const CFont & CFontEx::operator = (LOGFONT & logFont)
{
	if( GetSafeHandle() != NULL )
	{
		DeleteObject();
	}

	CreateFontIndirect( &logFont );

	return *this;
}

void CFontEx::SafeCreate(int height, const char * fontName/*=NULL*/)
{
	if( GetSafeHandle() != NULL )
	{
		DeleteObject();
	}

	CreateFont( height, 0, 0, 
		   0, 0, 0, 
		   0, 0, DEFAULT_CHARSET, 
		   OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, 
		   DEFAULT_PITCH, fontName );
}

BOOL CFontEx::MakePrinterFont(CPrinterInfoEx & info, CFont & reFont)
{
	if( GetSafeHandle() == NULL )
	{
		return FALSE;
	}
	if( reFont.GetSafeHandle() != NULL )
	{
		reFont.DeleteObject();
	}

LOGFONT logFont;
	GetLogFont( &logFont );
double height = logFont.lfHeight;

	//注：此轉換系數是經測試而得的，并非來自技術文檔資料
	height = height /  3764.7639 * info.m_yResolution;

	logFont.lfWidth = 0;
	logFont.lfHeight = long(height);

	reFont.CreateFontIndirect( &logFont );
	return TRUE;
}

BOOL CFontEx::SetBold(BOOL bold)
{
	if( GetSafeHandle() == NULL )
	{
		return FALSE;
	}

LOGFONT logFont;
	GetLogFont( &logFont );

	if( bold )
	{
		logFont.lfWeight = 700;
	}
	else
	{
		logFont.lfWeight = 400;
	}

	DeleteObject();
	CreateFontIndirect( &logFont );
	return TRUE;
}

BOOL CFontEx::SetItalic(BOOL italic)
{
	if( GetSafeHandle() == NULL )
	{
		return FALSE;
	}

LOGFONT logFont;
	GetLogFont( &logFont );

	logFont.lfItalic = italic;

	DeleteObject();
	CreateFontIndirect( &logFont );
	return TRUE;
}

BOOL CFontEx::SetUnderline(BOOL ul)
{
	if( GetSafeHandle() == NULL )
	{
		return FALSE;
	}

LOGFONT logFont;
	GetLogFont( &logFont );

	logFont.lfUnderline = ul;

	DeleteObject();
	CreateFontIndirect( &logFont );
	return TRUE;
}

BOOL CFontEx::Zoom( double ratio )
{
	if( GetSafeHandle() == NULL )
	{
		return FALSE;
	}

LOGFONT logFont;
	GetLogFont( &logFont );

	logFont.lfWidth = 0;
	logFont.lfHeight = long(logFont.lfHeight*ratio);

	DeleteObject();
	CreateFontIndirect( &logFont );
	return TRUE;
}