skia::textlayout::InternalLineMetrics Class Reference

#include <Run.h>

Public Member Functions
	InternalLineMetrics ()
	InternalLineMetrics (bool forceStrut)
	InternalLineMetrics (SkScalar a, SkScalar d, SkScalar l)
	InternalLineMetrics (SkScalar a, SkScalar d, SkScalar l, SkScalar ra, SkScalar rd, SkScalar rl)
	InternalLineMetrics (const SkFont &font, bool forceStrut)
void	add (Run *run)
void	add (InternalLineMetrics other)
void	clean ()
bool	isClean ()
SkScalar	delta () const
void	updateLineMetrics (InternalLineMetrics &metrics)
SkScalar	runTop (const Run *run, LineMetricStyle ascentStyle) const
SkScalar	height () const
void	update (SkScalar a, SkScalar d, SkScalar l)
void	updateRawData (SkScalar ra, SkScalar rd)
SkScalar	alphabeticBaseline () const
SkScalar	ideographicBaseline () const
SkScalar	deltaBaselines () const
SkScalar	baseline () const
SkScalar	ascent () const
SkScalar	descent () const
SkScalar	leading () const
SkScalar	rawAscent () const
SkScalar	rawDescent () const
void	setForceStrut (bool value)
bool	getForceStrut () const

Friends
class	ParagraphImpl
class	TextWrapper
class	TextLine

Detailed Description

Definition at line 367 of file Run.h.

Constructor & Destructor Documentation

InternalLineMetrics() [1/5]

skia::textlayout::InternalLineMetrics::InternalLineMetrics ( )

inline

Definition at line 370 of file Run.h.

                          {
        clean();
        fForceStrut = false;
    }

InternalLineMetrics() [2/5]

skia::textlayout::InternalLineMetrics::InternalLineMetrics ( bool  forceStrut )

inline

Definition at line 375 of file Run.h.

                                         {
        clean();
        fForceStrut = forceStrut;
    }

InternalLineMetrics() [3/5]

skia::textlayout::InternalLineMetrics::InternalLineMetrics ( SkScalar  a, SkScalar  d, SkScalar  l  )

inline

Definition at line 380 of file Run.h.

                                                            {
        fAscent = a;
        fDescent = d;
        fLeading = l;
        fRawAscent = a;
        fRawDescent = d;
        fRawLeading = l;
        fForceStrut = false;
    }

InternalLineMetrics() [4/5]

skia::textlayout::InternalLineMetrics::InternalLineMetrics ( SkScalar  a, SkScalar  d, SkScalar  l, SkScalar  ra, SkScalar  rd, SkScalar  rl  )

inline

Definition at line 390 of file Run.h.

                                                                                                   {
        fAscent = a;
        fDescent = d;
        fLeading = l;
        fRawAscent = ra;
        fRawDescent = rd;
        fRawLeading = rl;
        fForceStrut = false;
    }

InternalLineMetrics() [5/5]

skia::textlayout::InternalLineMetrics::InternalLineMetrics ( const SkFont &  font, bool  forceStrut  )

inline

Definition at line 400 of file Run.h.

                                                             {
        SkFontMetrics metrics;
        font.getMetrics(&metrics);
        fAscent = metrics.fAscent;
        fDescent = metrics.fDescent;
        fLeading = metrics.fLeading;
        fRawAscent = metrics.fAscent;
        fRawDescent = metrics.fDescent;
        fRawLeading = metrics.fLeading;
        fForceStrut = forceStrut;
    }

Member Function Documentation

add() [1/2]

void skia::textlayout::InternalLineMetrics::add ( InternalLineMetrics  other )

inline

Definition at line 425 of file Run.h.

                                        {
        fAscent = std::min(fAscent, other.fAscent);
        fDescent = std::max(fDescent, other.fDescent);
        fLeading = std::max(fLeading, other.fLeading);
        fRawAscent = std::min(fRawAscent, other.fRawAscent);
        fRawDescent = std::max(fRawDescent, other.fRawDescent);
        fRawLeading = std::max(fRawLeading, other.fRawLeading);
    }

add() [2/2]

void skia::textlayout::InternalLineMetrics::add ( Run *  run )

inline

Definition at line 412 of file Run.h.

                       {
        if (fForceStrut) {
            return;
        }
        fAscent = std::min(fAscent, run->correctAscent());
        fDescent = std::max(fDescent, run->correctDescent());
        fLeading = std::max(fLeading, run->correctLeading());
 
        fRawAscent = std::min(fRawAscent, run->ascent());
        fRawDescent = std::max(fRawDescent, run->descent());
        fRawLeading = std::max(fRawLeading, run->leading());
    }

alphabeticBaseline()

SkScalar skia::textlayout::InternalLineMetrics::alphabeticBaseline ( ) const

inline

Definition at line 491 of file Run.h.

{ return fLeading / 2 - fAscent; }

ascent()

SkScalar skia::textlayout::InternalLineMetrics::ascent ( ) const

inline

Definition at line 495 of file Run.h.

{ return fAscent; }

baseline()

SkScalar skia::textlayout::InternalLineMetrics::baseline ( ) const

inline

Definition at line 494 of file Run.h.

{ return fLeading / 2 - fAscent; }

clean()

void skia::textlayout::InternalLineMetrics::clean ( )

inline

Definition at line 434 of file Run.h.

                 {
        fAscent = SK_ScalarMax;
        fDescent = SK_ScalarMin;
        fLeading = 0;
        fRawAscent = SK_ScalarMax;
        fRawDescent = SK_ScalarMin;
        fRawLeading = 0;
    }

delta()

SkScalar skia::textlayout::InternalLineMetrics::delta ( ) const

inline

Definition at line 452 of file Run.h.

{ return height() - ideographicBaseline(); }

deltaBaselines()

SkScalar skia::textlayout::InternalLineMetrics::deltaBaselines ( ) const

inline

Definition at line 493 of file Run.h.

{ return fLeading / 2 + fDescent; }

descent()

SkScalar skia::textlayout::InternalLineMetrics::descent ( ) const

inline

Definition at line 496 of file Run.h.

{ return fDescent; }

getForceStrut()

bool skia::textlayout::InternalLineMetrics::getForceStrut ( ) const

inline

Definition at line 501 of file Run.h.

{ return fForceStrut; }

height()

SkScalar skia::textlayout::InternalLineMetrics::height ( ) const

inline

Definition at line 476 of file Run.h.

                            {
        return ::round((double)fDescent - fAscent + fLeading);
    }

ideographicBaseline()

SkScalar skia::textlayout::InternalLineMetrics::ideographicBaseline ( ) const

inline

Definition at line 492 of file Run.h.

{ return fDescent - fAscent + fLeading; }

isClean()

bool skia::textlayout::InternalLineMetrics::isClean ( )

inline

Definition at line 443 of file Run.h.

                   {
        return (fAscent == SK_ScalarMax &&
                fDescent == SK_ScalarMin &&
                fLeading == 0 &&
                fRawAscent == SK_ScalarMax &&
                fRawDescent == SK_ScalarMin &&
                fRawLeading == 0);
    }

leading()

SkScalar skia::textlayout::InternalLineMetrics::leading ( ) const

inline

Definition at line 497 of file Run.h.

{ return fLeading; }

rawAscent()

SkScalar skia::textlayout::InternalLineMetrics::rawAscent ( ) const

inline

Definition at line 498 of file Run.h.

{ return fRawAscent; }

rawDescent()

SkScalar skia::textlayout::InternalLineMetrics::rawDescent ( ) const

inline

Definition at line 499 of file Run.h.

{ return fRawDescent; }

runTop()

SkScalar skia::textlayout::InternalLineMetrics::runTop ( const Run *  run, LineMetricStyle  ascentStyle  ) const

inline

Definition at line 471 of file Run.h.

                                                                       {
        return fLeading / 2 - fAscent +
          (ascentStyle == LineMetricStyle::Typographic ? run->ascent() : run->correctAscent()) + delta();
    }

setForceStrut()

void skia::textlayout::InternalLineMetrics::setForceStrut ( bool  value )

inline

Definition at line 500 of file Run.h.

{ fForceStrut = value; }

update()

void skia::textlayout::InternalLineMetrics::update ( SkScalar  a, SkScalar  d, SkScalar  l  )

inline

Definition at line 480 of file Run.h.

                                                    {
        fAscent = a;
        fDescent = d;
        fLeading = l;
    }

updateLineMetrics()

void skia::textlayout::InternalLineMetrics::updateLineMetrics ( InternalLineMetrics &  metrics )

inline

Definition at line 454 of file Run.h.

                                                         {
        if (metrics.fForceStrut) {
            metrics.fAscent = fAscent;
            metrics.fDescent = fDescent;
            metrics.fLeading = fLeading;
            metrics.fRawAscent = fRawAscent;
            metrics.fRawDescent = fRawDescent;
            metrics.fRawLeading = fRawLeading;
        } else {
            // This is another of those flutter changes. To be removed...
            metrics.fAscent = std::min(metrics.fAscent, fAscent - fLeading / 2.0f);
            metrics.fDescent = std::max(metrics.fDescent, fDescent + fLeading / 2.0f);
            metrics.fRawAscent = std::min(metrics.fRawAscent, fRawAscent - fRawLeading / 2.0f);
            metrics.fRawDescent = std::max(metrics.fRawDescent, fRawDescent + fRawLeading / 2.0f);
        }
    }

updateRawData()

void skia::textlayout::InternalLineMetrics::updateRawData ( SkScalar  ra, SkScalar  rd  )

inline

Definition at line 486 of file Run.h.

                                                 {
        fRawAscent = ra;
        fRawDescent = rd;
    }

Friends And Related Symbol Documentation

ParagraphImpl

friend class ParagraphImpl

friend

Definition at line 505 of file Run.h.

TextLine

friend class TextLine

friend

Definition at line 507 of file Run.h.

TextWrapper

friend class TextWrapper

friend

Definition at line 506 of file Run.h.

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The documentation for this class was generated from the following file:

• third_party/skia/modules/skparagraph/src/Run.h