mgfontmetrics.h

monqueror一个很具有参考价值的源玛

#ifndef		_MGFONTMETRICS_H_
#define		_MGFONTMETRICS_H_

class MGHTMLPart;

#include "mgfont.h"

class MGFontMetrics
{
public:
	MGFontMetrics();
	~MGFontMetrics();

	MGFontMetrics( const MGFont&, MGHTMLPart* );
	MGFontMetrics( const MGFontMetrics& );
	MGFontMetrics( const MGPainter* );

	int ascent() const;
	int descent() const;
	
	int width( char ) const;
	int width( MGChar ) const;
	int width( const MGString&, int len = -1 ) const;

	int height() const;

	MGRect boundingRect( const MGString&, int len = -1 ) const;
	MGRect boundingRect( const MGChar& );
	int leftBearing( MGChar ) const;
	int rightBearing( MGChar ) const;

    int getFirstWordLen (const MGString&, int len, int* nr_delim = NULL) const;
    int getFirstCharLen (const MGString&, int len) const;
    bool fixedPitch () const;
protected:
	friend class MGFontInfo;
#if( _CURRENT_PLATFORM == _PLATFORM_MINIGUI )
	MGFont font;
    MGHTMLPart* part;
#endif
};

#endif