diff options
| author | Marius Storm-Olsen <marius.storm-olsen@nokia.com> | 2009-11-05 14:26:32 +0100 |
|---|---|---|
| committer | Marius Storm-Olsen <marius.storm-olsen@nokia.com> | 2009-11-06 15:41:53 +0100 |
| commit | 863369deceeb254ea71724a247953fd0760ae30b (patch) | |
| tree | ba94847f410cdfcd4f3b43593c0f979c956c4112 /src/gui/painting/qmatrix.cpp | |
| parent | 15a21652d178e4a298bb522d777602620cbd9938 (diff) | |
API review: QMatrix::det() -> QMatrix::determinant(), matching math3d
After an API review of the new math3d classes, the full name was
considered better than the short version. Therefore we obsolete the
short function, and introduce the longer version.
Reviewed-by: Andreas Aardal Hanssen
Diffstat (limited to 'src/gui/painting/qmatrix.cpp')
| -rw-r--r-- | src/gui/painting/qmatrix.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/gui/painting/qmatrix.cpp b/src/gui/painting/qmatrix.cpp index 88b2b7aafa..17b7241926 100644 --- a/src/gui/painting/qmatrix.cpp +++ b/src/gui/painting/qmatrix.cpp @@ -85,7 +85,7 @@ QT_BEGIN_NAMESPACE which returns true if the matrix is non-singular (i.e. AB = BA = I). The inverted() function returns an inverted copy of \e this matrix if it is invertible (otherwise it returns the identity - matrix). In addition, QMatrix provides the det() function + matrix). In addition, QMatrix provides the determinant() function returning the matrix's determinant. Finally, the QMatrix class supports matrix multiplication, and @@ -959,9 +959,19 @@ QMatrix &QMatrix::rotate(qreal a) */ /*! + \obsolete \fn qreal QMatrix::det() const Returns the matrix's determinant. + + \sa determinant() +*/ + +/*! + \since 4.6 + \fn qreal QMatrix::determinant() const + + Returns the matrix's determinant. */ /*! @@ -985,8 +995,8 @@ QMatrix &QMatrix::rotate(qreal a) QMatrix QMatrix::inverted(bool *invertible) const { - qreal determinant = det(); - if (determinant == 0.0) { + qreal dtr = determinant(); + if (dtr == 0.0) { if (invertible) *invertible = false; // singular matrix return QMatrix(true); @@ -994,7 +1004,7 @@ QMatrix QMatrix::inverted(bool *invertible) const else { // invertible matrix if (invertible) *invertible = true; - qreal dinv = 1.0/determinant; + qreal dinv = 1.0/dtr; return QMatrix((_m22*dinv), (-_m12*dinv), (-_m21*dinv), (_m11*dinv), ((_m21*_dy - _m22*_dx)*dinv), |