API:System.Types.TSizeF

• Übergeordnet: System.Types
• Methoden
• Eigenschaften
• Felder

Delphi

TSizeF = record

C++

struct TSizeF
{
  float cx;
  float cy;
public:
  TSizeF() _ALWAYS_INLINE {
    cx = cy = 0;
  }
  TSizeF(float w, float h) _ALWAYS_INLINE {
    cx = w;
    cy = h;
  }
  TSizeF(const TSize& s) _ALWAYS_INLINE {
    cx = s.cx;
    cy = s.cy;
  }
  bool operator ==(const TSizeF& sf) const {
    return _sameValue(cx, sf.cx) && _sameValue(cy, sf.cy);
  }
  bool operator !=(const TSizeF& sf) const {
    return !(sf == *this);
  }
  TSizeF operator +(const TSizeF& rhs) const {
    return TSizeF(rhs.cx + this->cx, rhs.cy + this->cy);
  }
  TSizeF operator -(const TSizeF& rhs) const {
    return TSizeF(this->cx - rhs.cx, this->cy - rhs.cy);
  }
  TSizeF& operator +=(const TSizeF& rhs) {
    this->cx += rhs.cx;
    this->cy += rhs.cy;
    return *this;
  }
  TSizeF& operator -=(const TSizeF& rhs) {
    this->cx -= rhs.cx;
    this->cy -= rhs.cy;
    return *this;
  }
  bool IsZero() const _ALWAYS_INLINE {
    return _sameValue(cx, 0.0F) && _sameValue(cy, 0.0F);
  }
  double Distance(const TSizeF& s2) const _ALWAYS_INLINE {
  #ifdef _WIN64 // RS-53817
    return System::hypotWA(s2.cx - this->cx, s2.cy - this->cy);
  #else
    return hypot(s2.cx - this->cx, s2.cy - this->cy);
  #endif
  }
  TSize Ceiling() const _ALWAYS_INLINE {
    return TSize((int32_t)ceil(this->cx), (int32_t)ceil(this->cy));
  }
  TSize Truncate() const _ALWAYS_INLINE {
    return TSize((int32_t)floor(this->cx), (int32_t)floor(this->cy));
  }
  TSize Round() const _ALWAYS_INLINE {
    return TSize((int32_t)floor(this->cx + 0.5), (int32_t)floor(this->cy + 0.5));
  }
  static bool __fastcall _sameValue(float a, float b) {
    const float SINGLE_RESOLUTION = 1.25E-6f;
    const float SINGLE_ZERO =6.25E-37f;
    float _epsilon = (float) ((fabs(a) > fabs(b)) ? fabs(a): fabs(b)) * SINGLE_RESOLUTION;
    if (_epsilon == 0)
      _epsilon = SINGLE_ZERO; // both a and b are very little, _epsilon was 0 because of normalization
    return (a > b) ? ((a - b) <= _epsilon): ((b - a) <= _epsilon);
  }
  __property float Width =  { read=cx,   write=cx  };
  __property float Height = { read=cy,   write=cy  };
};

Eigenschaften

Typ	Sichtbarkeit	Quelle	Unit	Übergeordnet
record struct	public	System.Types.pas SystemTypes.h	System.Types	System.Types

Beschreibung

Embarcadero Technologies verfügt zurzeit über keine zusätzlichen Informationen. Bitte unterstützen Sie uns bei der Dokumentation dieses Themas, indem Sie Ihre Kommentare auf der Diskussionsseite eingeben.