diff options
Diffstat (limited to 'src/gui/math3d/qmatrix4x4.h')
-rw-r--r-- | src/gui/math3d/qmatrix4x4.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h index 31a4dbf1ca..234a8502d9 100644 --- a/src/gui/math3d/qmatrix4x4.h +++ b/src/gui/math3d/qmatrix4x4.h @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -53,6 +53,7 @@ class Q_GUI_EXPORT QMatrix4x4 { public: inline QMatrix4x4() { setToIdentity(); } + explicit QMatrix4x4(Qt::Initialization) {} explicit QMatrix4x4(const float *values); inline QMatrix4x4(float m11, float m12, float m13, float m14, float m21, float m22, float m23, float m24, @@ -77,6 +78,8 @@ public: inline void setRow(int index, const QVector4D& value); #endif + inline bool isAffine() const; + inline bool isIdentity() const; inline void setToIdentity(); @@ -302,6 +305,11 @@ 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) |