diff options
Diffstat (limited to 'src/gui/math3d/qmatrix4x4.h')
| -rw-r--r-- | src/gui/math3d/qmatrix4x4.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h index 31a4dbf1ca..74329b7cdd 100644 --- a/src/gui/math3d/qmatrix4x4.h +++ b/src/gui/math3d/qmatrix4x4.h @@ -77,6 +77,8 @@ public: inline void setRow(int index, const QVector4D& value); #endif + inline bool isAffine() const; + inline bool isIdentity() const; inline void setToIdentity(); @@ -302,6 +304,11 @@ inline void QMatrix4x4::setRow(int index, const QVector4D& value) Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor); +inline bool QMatrix4x4::isAffine() const +{ + return m[0][3] == 0.0f && m[1][3] == 0.0f && m[2][3] == 0.0f && m[3][3] == 1.0f; +} + inline bool QMatrix4x4::isIdentity() const { if (flagBits == Identity) |