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baldurk
768e812e45
* On windows it's strongly desired to be able to compile straight out of a clean checkout or source download. This means anyone can download the source and investigate something quickly, without having to worry about the hassle of figuring out how the project downloads 3rd party dependencies, fetching them, getting them registered in the right place. * This can't be put in a submodule as git submodules don't get downloaded by default so people new to git will get confusing compilation messages, and someone downloading the source from github directly without cloning via git won't get submodules included. * It does add some extra size to a fresh download/checkout which is unfortunate, but absolutely worth the cost. Shallow checkouts still aren't unfeasibly large, and it's only a one-off cost at clone time.
412 lines
12 KiB
C++
412 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTRANSFORM_H
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#define QTRANSFORM_H
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#include <QtGui/qtguiglobal.h>
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#include <QtGui/qmatrix.h>
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#include <QtGui/qpainterpath.h>
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#include <QtGui/qpolygon.h>
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#include <QtGui/qregion.h>
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#include <QtGui/qwindowdefs.h>
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#include <QtCore/qline.h>
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#include <QtCore/qpoint.h>
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#include <QtCore/qrect.h>
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QT_BEGIN_NAMESPACE
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class QVariant;
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class Q_GUI_EXPORT QTransform
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{
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public:
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enum TransformationType {
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TxNone = 0x00,
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TxTranslate = 0x01,
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TxScale = 0x02,
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TxRotate = 0x04,
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TxShear = 0x08,
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TxProject = 0x10
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};
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inline explicit QTransform(Qt::Initialization) : affine(Qt::Uninitialized) {}
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QTransform();
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QTransform(qreal h11, qreal h12, qreal h13,
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qreal h21, qreal h22, qreal h23,
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qreal h31, qreal h32, qreal h33 = 1.0);
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QTransform(qreal h11, qreal h12, qreal h21,
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qreal h22, qreal dx, qreal dy);
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explicit QTransform(const QMatrix &mtx);
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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// ### Qt 6: remove; the compiler-generated ones are fine!
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QTransform &operator=(QTransform &&other) Q_DECL_NOTHROW // = default
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{ memcpy(this, &other, sizeof(QTransform)); return *this; }
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QTransform &operator=(const QTransform &) Q_DECL_NOTHROW; // = default
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QTransform(QTransform &&other) Q_DECL_NOTHROW // = default
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: affine(Qt::Uninitialized)
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{ memcpy(this, &other, sizeof(QTransform)); }
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QTransform(const QTransform &other) Q_DECL_NOTHROW // = default
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: affine(Qt::Uninitialized)
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{ memcpy(this, &other, sizeof(QTransform)); }
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#endif
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bool isAffine() const;
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bool isIdentity() const;
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bool isInvertible() const;
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bool isScaling() const;
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bool isRotating() const;
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bool isTranslating() const;
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TransformationType type() const;
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inline qreal determinant() const;
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qreal det() const;
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qreal m11() const;
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qreal m12() const;
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qreal m13() const;
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qreal m21() const;
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qreal m22() const;
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qreal m23() const;
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qreal m31() const;
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qreal m32() const;
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qreal m33() const;
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qreal dx() const;
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qreal dy() const;
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void setMatrix(qreal m11, qreal m12, qreal m13,
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qreal m21, qreal m22, qreal m23,
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qreal m31, qreal m32, qreal m33);
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Q_REQUIRED_RESULT QTransform inverted(bool *invertible = Q_NULLPTR) const;
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Q_REQUIRED_RESULT QTransform adjoint() const;
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Q_REQUIRED_RESULT QTransform transposed() const;
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QTransform &translate(qreal dx, qreal dy);
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QTransform &scale(qreal sx, qreal sy);
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QTransform &shear(qreal sh, qreal sv);
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QTransform &rotate(qreal a, Qt::Axis axis = Qt::ZAxis);
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QTransform &rotateRadians(qreal a, Qt::Axis axis = Qt::ZAxis);
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static bool squareToQuad(const QPolygonF &square, QTransform &result);
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static bool quadToSquare(const QPolygonF &quad, QTransform &result);
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static bool quadToQuad(const QPolygonF &one,
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const QPolygonF &two,
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QTransform &result);
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bool operator==(const QTransform &) const;
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bool operator!=(const QTransform &) const;
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QTransform &operator*=(const QTransform &);
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QTransform operator*(const QTransform &o) const;
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operator QVariant() const;
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void reset();
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QPoint map(const QPoint &p) const;
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QPointF map(const QPointF &p) const;
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QLine map(const QLine &l) const;
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QLineF map(const QLineF &l) const;
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QPolygonF map(const QPolygonF &a) const;
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QPolygon map(const QPolygon &a) const;
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QRegion map(const QRegion &r) const;
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QPainterPath map(const QPainterPath &p) const;
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QPolygon mapToPolygon(const QRect &r) const;
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QRect mapRect(const QRect &) const;
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QRectF mapRect(const QRectF &) const;
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void map(int x, int y, int *tx, int *ty) const;
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void map(qreal x, qreal y, qreal *tx, qreal *ty) const;
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const QMatrix &toAffine() const;
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QTransform &operator*=(qreal div);
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QTransform &operator/=(qreal div);
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QTransform &operator+=(qreal div);
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QTransform &operator-=(qreal div);
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static QTransform fromTranslate(qreal dx, qreal dy);
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static QTransform fromScale(qreal dx, qreal dy);
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private:
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inline QTransform(qreal h11, qreal h12, qreal h13,
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qreal h21, qreal h22, qreal h23,
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qreal h31, qreal h32, qreal h33, bool)
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: affine(h11, h12, h21, h22, h31, h32, true)
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, m_13(h13), m_23(h23), m_33(h33)
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, m_type(TxNone)
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, m_dirty(TxProject)
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, d(Q_NULLPTR)
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{
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}
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inline QTransform(bool)
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: affine(true)
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, m_13(0), m_23(0), m_33(1)
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, m_type(TxNone)
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, m_dirty(TxNone)
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, d(Q_NULLPTR)
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{
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}
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inline TransformationType inline_type() const;
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QMatrix affine;
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qreal m_13;
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qreal m_23;
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qreal m_33;
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mutable uint m_type : 5;
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mutable uint m_dirty : 5;
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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class Private;
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Private *d;
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#endif
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};
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Q_DECLARE_TYPEINFO(QTransform, Q_MOVABLE_TYPE);
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Q_GUI_EXPORT Q_DECL_CONST_FUNCTION uint qHash(const QTransform &key, uint seed = 0) Q_DECL_NOTHROW;
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/******* inlines *****/
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inline QTransform::TransformationType QTransform::inline_type() const
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{
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if (m_dirty == TxNone)
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return static_cast<TransformationType>(m_type);
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return type();
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}
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inline bool QTransform::isAffine() const
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{
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return inline_type() < TxProject;
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}
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inline bool QTransform::isIdentity() const
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{
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return inline_type() == TxNone;
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}
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inline bool QTransform::isInvertible() const
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{
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return !qFuzzyIsNull(determinant());
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}
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inline bool QTransform::isScaling() const
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{
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return type() >= TxScale;
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}
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inline bool QTransform::isRotating() const
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{
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return inline_type() >= TxRotate;
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}
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inline bool QTransform::isTranslating() const
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{
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return inline_type() >= TxTranslate;
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}
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inline qreal QTransform::determinant() const
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{
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return affine._m11*(m_33*affine._m22-affine._dy*m_23) -
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affine._m21*(m_33*affine._m12-affine._dy*m_13)+affine._dx*(m_23*affine._m12-affine._m22*m_13);
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}
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inline qreal QTransform::det() const
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{
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return determinant();
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}
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inline qreal QTransform::m11() const
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{
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return affine._m11;
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}
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inline qreal QTransform::m12() const
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{
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return affine._m12;
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}
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inline qreal QTransform::m13() const
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{
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return m_13;
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}
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inline qreal QTransform::m21() const
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{
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return affine._m21;
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}
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inline qreal QTransform::m22() const
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{
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return affine._m22;
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}
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inline qreal QTransform::m23() const
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{
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return m_23;
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}
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inline qreal QTransform::m31() const
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{
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return affine._dx;
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}
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inline qreal QTransform::m32() const
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{
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return affine._dy;
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}
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inline qreal QTransform::m33() const
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{
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return m_33;
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}
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inline qreal QTransform::dx() const
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{
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return affine._dx;
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}
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inline qreal QTransform::dy() const
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{
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return affine._dy;
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}
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QT_WARNING_PUSH
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QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
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QT_WARNING_DISABLE_GCC("-Wfloat-equal")
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inline QTransform &QTransform::operator*=(qreal num)
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{
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if (num == 1.)
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return *this;
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affine._m11 *= num;
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affine._m12 *= num;
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m_13 *= num;
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affine._m21 *= num;
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affine._m22 *= num;
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m_23 *= num;
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affine._dx *= num;
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affine._dy *= num;
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m_33 *= num;
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if (m_dirty < TxScale)
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m_dirty = TxScale;
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return *this;
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}
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inline QTransform &QTransform::operator/=(qreal div)
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{
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if (div == 0)
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return *this;
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div = 1/div;
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return operator*=(div);
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}
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inline QTransform &QTransform::operator+=(qreal num)
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{
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if (num == 0)
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return *this;
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affine._m11 += num;
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affine._m12 += num;
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m_13 += num;
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affine._m21 += num;
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affine._m22 += num;
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m_23 += num;
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affine._dx += num;
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affine._dy += num;
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m_33 += num;
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m_dirty = TxProject;
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return *this;
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}
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inline QTransform &QTransform::operator-=(qreal num)
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{
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if (num == 0)
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return *this;
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affine._m11 -= num;
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affine._m12 -= num;
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m_13 -= num;
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affine._m21 -= num;
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affine._m22 -= num;
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m_23 -= num;
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affine._dx -= num;
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affine._dy -= num;
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m_33 -= num;
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m_dirty = TxProject;
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return *this;
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}
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QT_WARNING_POP
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inline bool qFuzzyCompare(const QTransform& t1, const QTransform& t2)
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{
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return qFuzzyCompare(t1.m11(), t2.m11())
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&& qFuzzyCompare(t1.m12(), t2.m12())
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&& qFuzzyCompare(t1.m13(), t2.m13())
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&& qFuzzyCompare(t1.m21(), t2.m21())
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&& qFuzzyCompare(t1.m22(), t2.m22())
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&& qFuzzyCompare(t1.m23(), t2.m23())
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&& qFuzzyCompare(t1.m31(), t2.m31())
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&& qFuzzyCompare(t1.m32(), t2.m32())
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&& qFuzzyCompare(t1.m33(), t2.m33());
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}
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/****** stream functions *******************/
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#ifndef QT_NO_DATASTREAM
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Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QTransform &);
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Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QTransform &);
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#endif
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#ifndef QT_NO_DEBUG_STREAM
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Q_GUI_EXPORT QDebug operator<<(QDebug, const QTransform &);
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#endif
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/****** end stream functions *******************/
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// mathematical semantics
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inline QPoint operator*(const QPoint &p, const QTransform &m)
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{ return m.map(p); }
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inline QPointF operator*(const QPointF &p, const QTransform &m)
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{ return m.map(p); }
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inline QLineF operator*(const QLineF &l, const QTransform &m)
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{ return m.map(l); }
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inline QLine operator*(const QLine &l, const QTransform &m)
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{ return m.map(l); }
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inline QPolygon operator *(const QPolygon &a, const QTransform &m)
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{ return m.map(a); }
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inline QPolygonF operator *(const QPolygonF &a, const QTransform &m)
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{ return m.map(a); }
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inline QRegion operator *(const QRegion &r, const QTransform &m)
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{ return m.map(r); }
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inline QPainterPath operator *(const QPainterPath &p, const QTransform &m)
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{ return m.map(p); }
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inline QTransform operator *(const QTransform &a, qreal n)
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{ QTransform t(a); t *= n; return t; }
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inline QTransform operator /(const QTransform &a, qreal n)
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{ QTransform t(a); t /= n; return t; }
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inline QTransform operator +(const QTransform &a, qreal n)
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{ QTransform t(a); t += n; return t; }
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inline QTransform operator -(const QTransform &a, qreal n)
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{ QTransform t(a); t -= n; return t; }
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QT_END_NAMESPACE
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#endif // QTRANSFORM_H
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