Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
Loading...
Searching...
No Matches
qmatrix4x4.h
Go to the documentation of this file.
1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QMATRIX4X4_H
5#define QMATRIX4X4_H
6
7#include <QtGui/qtguiglobal.h>
8#include <QtGui/qvector3d.h>
9#include <QtGui/qvector4d.h>
10#include <QtGui/qquaternion.h>
11#include <QtGui/qgenericmatrix.h>
12#include <QtCore/qrect.h>
13
14class tst_QMatrixNxN;
15
16QT_BEGIN_NAMESPACE
17
18
19#ifndef QT_NO_MATRIX4X4
20
21class QTransform;
22class QVariant;
23
24class Q_GUI_EXPORT QMatrix4x4
25{
26public:
27 inline QMatrix4x4() { setToIdentity(); }
28 explicit QMatrix4x4(Qt::Initialization) : flagBits(General) {}
29 explicit QMatrix4x4(const float *values);
30 inline QMatrix4x4(float m11, float m12, float m13, float m14,
31 float m21, float m22, float m23, float m24,
32 float m31, float m32, float m33, float m34,
33 float m41, float m42, float m43, float m44);
34
35 template <int N, int M>
36 explicit QMatrix4x4(const QGenericMatrix<N, M, float>& matrix);
37
38 QMatrix4x4(const float *values, int cols, int rows);
39 QMatrix4x4(const QTransform& transform);
40
41 inline const float& operator()(int row, int column) const;
42 inline float& operator()(int row, int column);
43
44#ifndef QT_NO_VECTOR4D
45 inline QVector4D column(int index) const;
46 inline void setColumn(int index, const QVector4D& value);
47
48 inline QVector4D row(int index) const;
49 inline void setRow(int index, const QVector4D& value);
50#endif
51
52 inline bool isAffine() const;
53
54 inline bool isIdentity() const;
55 inline void setToIdentity();
56
57 inline void fill(float value);
58
59 double determinant() const;
60 QMatrix4x4 inverted(bool *invertible = nullptr) const;
61 QMatrix4x4 transposed() const;
62 QMatrix3x3 normalMatrix() const;
63
64 inline QMatrix4x4& operator+=(const QMatrix4x4& other);
65 inline QMatrix4x4& operator-=(const QMatrix4x4& other);
66 inline QMatrix4x4& operator*=(const QMatrix4x4& other);
67 inline QMatrix4x4& operator*=(float factor);
68 QMatrix4x4& operator/=(float divisor);
69 inline bool operator==(const QMatrix4x4& other) const;
70 inline bool operator!=(const QMatrix4x4& other) const;
71
72 friend QMatrix4x4 operator+(const QMatrix4x4& m1, const QMatrix4x4& m2);
73 friend QMatrix4x4 operator-(const QMatrix4x4& m1, const QMatrix4x4& m2);
74 friend QMatrix4x4 operator*(const QMatrix4x4& m1, const QMatrix4x4& m2);
75#ifndef QT_NO_VECTOR3D
76#if QT_DEPRECATED_SINCE(6, 1)
77 friend QVector3D operator*(const QMatrix4x4& matrix, const QVector3D& vector);
78 friend QVector3D operator*(const QVector3D& vector, const QMatrix4x4& matrix);
79#endif
80#endif
81#ifndef QT_NO_VECTOR4D
82 friend QVector4D operator*(const QVector4D& vector, const QMatrix4x4& matrix);
83 friend QVector4D operator*(const QMatrix4x4& matrix, const QVector4D& vector);
84#endif
85 friend QPoint operator*(const QPoint& point, const QMatrix4x4& matrix);
86 friend QPointF operator*(const QPointF& point, const QMatrix4x4& matrix);
87 friend QMatrix4x4 operator-(const QMatrix4x4& matrix);
88#if QT_DEPRECATED_SINCE(6, 1)
89 friend QPoint operator*(const QMatrix4x4& matrix, const QPoint& point);
90 friend QPointF operator*(const QMatrix4x4& matrix, const QPointF& point);
91#endif
92 friend QMatrix4x4 operator*(float factor, const QMatrix4x4& matrix);
93 friend QMatrix4x4 operator*(const QMatrix4x4& matrix, float factor);
94 friend Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor);
95
96 friend Q_GUI_EXPORT bool qFuzzyCompare(const QMatrix4x4& m1, const QMatrix4x4& m2);
97
98#ifndef QT_NO_VECTOR3D
99 void scale(const QVector3D& vector);
100 void translate(const QVector3D& vector);
101 void rotate(float angle, const QVector3D& vector);
102#endif
103 void scale(float x, float y);
104 void scale(float x, float y, float z);
105 void scale(float factor);
106 void translate(float x, float y);
107 void translate(float x, float y, float z);
108 void rotate(float angle, float x, float y, float z = 0.0f);
109#ifndef QT_NO_QUATERNION
110 void rotate(const QQuaternion& quaternion);
111#endif
112
113 void ortho(const QRect& rect);
114 void ortho(const QRectF& rect);
115 void ortho(float left, float right, float bottom, float top, float nearPlane, float farPlane);
116 void frustum(float left, float right, float bottom, float top, float nearPlane, float farPlane);
117 void perspective(float verticalAngle, float aspectRatio, float nearPlane, float farPlane);
118#ifndef QT_NO_VECTOR3D
119 void lookAt(const QVector3D& eye, const QVector3D& center, const QVector3D& up);
120#endif
121 void viewport(const QRectF &rect);
122 void viewport(float left, float bottom, float width, float height, float nearPlane = 0.0f, float farPlane = 1.0f);
123 void flipCoordinates();
124
125 void copyDataTo(float *values) const;
126
127 QTransform toTransform() const;
128 QTransform toTransform(float distanceToPlane) const;
129
130 inline QPoint map(const QPoint& point) const;
131 inline QPointF map(const QPointF& point) const;
132#ifndef QT_NO_VECTOR3D
133 inline QVector3D map(const QVector3D& point) const;
134 inline QVector3D mapVector(const QVector3D& vector) const;
135#endif
136#ifndef QT_NO_VECTOR4D
137 inline QVector4D map(const QVector4D& point) const;
138#endif
139 QRect mapRect(const QRect& rect) const;
140 QRectF mapRect(const QRectF& rect) const;
141
142 template <int N, int M>
143 QGenericMatrix<N, M, float> toGenericMatrix() const;
144
145 inline float *data();
146 inline const float *data() const { return *m; }
147 inline const float *constData() const { return *m; }
148
149 void optimize();
150
151 operator QVariant() const;
152
153#ifndef QT_NO_DEBUG_STREAM
154 friend Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QMatrix4x4 &m);
155#endif
156
157#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
158 void projectedRotate(float angle, float x, float y, float z, float distanceToPlane);
159 // ### Qt7: Remove
160 void projectedRotate(float angle, float x, float y, float z);
161#else
162 void projectedRotate(float angle, float x, float y, float z, float distanceToPlane = 1024.0);
163#endif
164
165 // When matrices are multiplied, the flag bits are or-ed together.
166 // Note that the ordering of the bit values matters. (ident < t < s < r2d < r < p)
167 enum Flag {
168 Identity = 0x0000, // Identity matrix
169 Translation = 0x0001, // Contains a translation
170 Scale = 0x0002, // Contains a scale
171 Rotation2D = 0x0004, // Contains a rotation about the Z axis
172 Rotation = 0x0008, // Contains an arbitrary rotation
173 Perspective = 0x0010, // Last row is different from (0, 0, 0, 1)
174 General = 0x001f // General matrix, unknown contents
175 };
176 Q_DECLARE_FLAGS(Flags, Flag)
177
178 Flags flags() const { return flagBits; }
179
180private:
181 float m[4][4]; // Column-major order to match OpenGL.
182 Flags flagBits;
183
184 QMatrix4x4 orthonormalInverse() const;
185
186 friend class ::tst_QMatrixNxN; // for access to flagBits
187};
188
189Q_DECLARE_OPERATORS_FOR_FLAGS(QMatrix4x4::Flags)
190
191QT_WARNING_PUSH
192QT_WARNING_DISABLE_FLOAT_COMPARE
193
194Q_DECLARE_TYPEINFO(QMatrix4x4, Q_PRIMITIVE_TYPE);
195
196inline QMatrix4x4::QMatrix4x4
197 (float m11, float m12, float m13, float m14,
198 float m21, float m22, float m23, float m24,
199 float m31, float m32, float m33, float m34,
200 float m41, float m42, float m43, float m44)
201{
202 m[0][0] = m11; m[0][1] = m21; m[0][2] = m31; m[0][3] = m41;
203 m[1][0] = m12; m[1][1] = m22; m[1][2] = m32; m[1][3] = m42;
204 m[2][0] = m13; m[2][1] = m23; m[2][2] = m33; m[2][3] = m43;
205 m[3][0] = m14; m[3][1] = m24; m[3][2] = m34; m[3][3] = m44;
206 flagBits = General;
207}
208
209template <int N, int M>
210Q_INLINE_TEMPLATE QMatrix4x4::QMatrix4x4
211 (const QGenericMatrix<N, M, float>& matrix)
212{
213 const float *values = matrix.constData();
214 for (int matrixCol = 0; matrixCol < 4; ++matrixCol) {
215 for (int matrixRow = 0; matrixRow < 4; ++matrixRow) {
216 if (matrixCol < N && matrixRow < M)
217 m[matrixCol][matrixRow] = values[matrixCol * M + matrixRow];
218 else if (matrixCol == matrixRow)
219 m[matrixCol][matrixRow] = 1.0f;
220 else
221 m[matrixCol][matrixRow] = 0.0f;
222 }
223 }
224 flagBits = General;
225}
226
227template <int N, int M>
228QGenericMatrix<N, M, float> QMatrix4x4::toGenericMatrix() const
229{
230 QGenericMatrix<N, M, float> result;
231 float *values = result.data();
232 for (int matrixCol = 0; matrixCol < N; ++matrixCol) {
233 for (int matrixRow = 0; matrixRow < M; ++matrixRow) {
234 if (matrixCol < 4 && matrixRow < 4)
235 values[matrixCol * M + matrixRow] = m[matrixCol][matrixRow];
236 else if (matrixCol == matrixRow)
237 values[matrixCol * M + matrixRow] = 1.0f;
238 else
239 values[matrixCol * M + matrixRow] = 0.0f;
240 }
241 }
242 return result;
243}
244
245inline const float& QMatrix4x4::operator()(int aRow, int aColumn) const
246{
247 Q_ASSERT(aRow >= 0 && aRow < 4 && aColumn >= 0 && aColumn < 4);
248 return m[aColumn][aRow];
249}
250
251inline float& QMatrix4x4::operator()(int aRow, int aColumn)
252{
253 Q_ASSERT(aRow >= 0 && aRow < 4 && aColumn >= 0 && aColumn < 4);
254 flagBits = General;
255 return m[aColumn][aRow];
256}
257
258#ifndef QT_NO_VECTOR4D
259inline QVector4D QMatrix4x4::column(int index) const
260{
261 Q_ASSERT(index >= 0 && index < 4);
262 return QVector4D(m[index][0], m[index][1], m[index][2], m[index][3]);
263}
264
265inline void QMatrix4x4::setColumn(int index, const QVector4D& value)
266{
267 Q_ASSERT(index >= 0 && index < 4);
268 m[index][0] = value.x();
269 m[index][1] = value.y();
270 m[index][2] = value.z();
271 m[index][3] = value.w();
272 flagBits = General;
273}
274
275inline QVector4D QMatrix4x4::row(int index) const
276{
277 Q_ASSERT(index >= 0 && index < 4);
278 return QVector4D(m[0][index], m[1][index], m[2][index], m[3][index]);
279}
280
281inline void QMatrix4x4::setRow(int index, const QVector4D& value)
282{
283 Q_ASSERT(index >= 0 && index < 4);
284 m[0][index] = value.x();
285 m[1][index] = value.y();
286 m[2][index] = value.z();
287 m[3][index] = value.w();
288 flagBits = General;
289}
290#endif
291
292Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor);
293
294inline bool QMatrix4x4::isAffine() const
295{
296 return m[0][3] == 0.0f && m[1][3] == 0.0f && m[2][3] == 0.0f && m[3][3] == 1.0f;
297}
298
299inline bool QMatrix4x4::isIdentity() const
300{
301 if (flagBits == Identity)
302 return true;
303 if (m[0][0] != 1.0f || m[0][1] != 0.0f || m[0][2] != 0.0f)
304 return false;
305 if (m[0][3] != 0.0f || m[1][0] != 0.0f || m[1][1] != 1.0f)
306 return false;
307 if (m[1][2] != 0.0f || m[1][3] != 0.0f || m[2][0] != 0.0f)
308 return false;
309 if (m[2][1] != 0.0f || m[2][2] != 1.0f || m[2][3] != 0.0f)
310 return false;
311 if (m[3][0] != 0.0f || m[3][1] != 0.0f || m[3][2] != 0.0f)
312 return false;
313 return (m[3][3] == 1.0f);
314}
315
316inline void QMatrix4x4::setToIdentity()
317{
318 m[0][0] = 1.0f;
319 m[0][1] = 0.0f;
320 m[0][2] = 0.0f;
321 m[0][3] = 0.0f;
322 m[1][0] = 0.0f;
323 m[1][1] = 1.0f;
324 m[1][2] = 0.0f;
325 m[1][3] = 0.0f;
326 m[2][0] = 0.0f;
327 m[2][1] = 0.0f;
328 m[2][2] = 1.0f;
329 m[2][3] = 0.0f;
330 m[3][0] = 0.0f;
331 m[3][1] = 0.0f;
332 m[3][2] = 0.0f;
333 m[3][3] = 1.0f;
334 flagBits = Identity;
335}
336
337inline void QMatrix4x4::fill(float value)
338{
339 m[0][0] = value;
340 m[0][1] = value;
341 m[0][2] = value;
342 m[0][3] = value;
343 m[1][0] = value;
344 m[1][1] = value;
345 m[1][2] = value;
346 m[1][3] = value;
347 m[2][0] = value;
348 m[2][1] = value;
349 m[2][2] = value;
350 m[2][3] = value;
351 m[3][0] = value;
352 m[3][1] = value;
353 m[3][2] = value;
354 m[3][3] = value;
355 flagBits = General;
356}
357
358inline QMatrix4x4& QMatrix4x4::operator+=(const QMatrix4x4& other)
359{
360 m[0][0] += other.m[0][0];
361 m[0][1] += other.m[0][1];
362 m[0][2] += other.m[0][2];
363 m[0][3] += other.m[0][3];
364 m[1][0] += other.m[1][0];
365 m[1][1] += other.m[1][1];
366 m[1][2] += other.m[1][2];
367 m[1][3] += other.m[1][3];
368 m[2][0] += other.m[2][0];
369 m[2][1] += other.m[2][1];
370 m[2][2] += other.m[2][2];
371 m[2][3] += other.m[2][3];
372 m[3][0] += other.m[3][0];
373 m[3][1] += other.m[3][1];
374 m[3][2] += other.m[3][2];
375 m[3][3] += other.m[3][3];
376 flagBits = General;
377 return *this;
378}
379
380inline QMatrix4x4& QMatrix4x4::operator-=(const QMatrix4x4& other)
381{
382 m[0][0] -= other.m[0][0];
383 m[0][1] -= other.m[0][1];
384 m[0][2] -= other.m[0][2];
385 m[0][3] -= other.m[0][3];
386 m[1][0] -= other.m[1][0];
387 m[1][1] -= other.m[1][1];
388 m[1][2] -= other.m[1][2];
389 m[1][3] -= other.m[1][3];
390 m[2][0] -= other.m[2][0];
391 m[2][1] -= other.m[2][1];
392 m[2][2] -= other.m[2][2];
393 m[2][3] -= other.m[2][3];
394 m[3][0] -= other.m[3][0];
395 m[3][1] -= other.m[3][1];
396 m[3][2] -= other.m[3][2];
397 m[3][3] -= other.m[3][3];
398 flagBits = General;
399 return *this;
400}
401
402inline QMatrix4x4& QMatrix4x4::operator*=(const QMatrix4x4& o)
403{
404 const QMatrix4x4 other = o; // prevent aliasing when &o == this ### Qt 6: take o by value
405 flagBits |= other.flagBits;
406
407 if (flagBits.toInt() < Rotation2D) {
408 m[3][0] += m[0][0] * other.m[3][0];
409 m[3][1] += m[1][1] * other.m[3][1];
410 m[3][2] += m[2][2] * other.m[3][2];
411
412 m[0][0] *= other.m[0][0];
413 m[1][1] *= other.m[1][1];
414 m[2][2] *= other.m[2][2];
415 return *this;
416 }
417
418 float m0, m1, m2;
419 m0 = m[0][0] * other.m[0][0]
420 + m[1][0] * other.m[0][1]
421 + m[2][0] * other.m[0][2]
422 + m[3][0] * other.m[0][3];
423 m1 = m[0][0] * other.m[1][0]
424 + m[1][0] * other.m[1][1]
425 + m[2][0] * other.m[1][2]
426 + m[3][0] * other.m[1][3];
427 m2 = m[0][0] * other.m[2][0]
428 + m[1][0] * other.m[2][1]
429 + m[2][0] * other.m[2][2]
430 + m[3][0] * other.m[2][3];
431 m[3][0] = m[0][0] * other.m[3][0]
432 + m[1][0] * other.m[3][1]
433 + m[2][0] * other.m[3][2]
434 + m[3][0] * other.m[3][3];
435 m[0][0] = m0;
436 m[1][0] = m1;
437 m[2][0] = m2;
438
439 m0 = m[0][1] * other.m[0][0]
440 + m[1][1] * other.m[0][1]
441 + m[2][1] * other.m[0][2]
442 + m[3][1] * other.m[0][3];
443 m1 = m[0][1] * other.m[1][0]
444 + m[1][1] * other.m[1][1]
445 + m[2][1] * other.m[1][2]
446 + m[3][1] * other.m[1][3];
447 m2 = m[0][1] * other.m[2][0]
448 + m[1][1] * other.m[2][1]
449 + m[2][1] * other.m[2][2]
450 + m[3][1] * other.m[2][3];
451 m[3][1] = m[0][1] * other.m[3][0]
452 + m[1][1] * other.m[3][1]
453 + m[2][1] * other.m[3][2]
454 + m[3][1] * other.m[3][3];
455 m[0][1] = m0;
456 m[1][1] = m1;
457 m[2][1] = m2;
458
459 m0 = m[0][2] * other.m[0][0]
460 + m[1][2] * other.m[0][1]
461 + m[2][2] * other.m[0][2]
462 + m[3][2] * other.m[0][3];
463 m1 = m[0][2] * other.m[1][0]
464 + m[1][2] * other.m[1][1]
465 + m[2][2] * other.m[1][2]
466 + m[3][2] * other.m[1][3];
467 m2 = m[0][2] * other.m[2][0]
468 + m[1][2] * other.m[2][1]
469 + m[2][2] * other.m[2][2]
470 + m[3][2] * other.m[2][3];
471 m[3][2] = m[0][2] * other.m[3][0]
472 + m[1][2] * other.m[3][1]
473 + m[2][2] * other.m[3][2]
474 + m[3][2] * other.m[3][3];
475 m[0][2] = m0;
476 m[1][2] = m1;
477 m[2][2] = m2;
478
479 m0 = m[0][3] * other.m[0][0]
480 + m[1][3] * other.m[0][1]
481 + m[2][3] * other.m[0][2]
482 + m[3][3] * other.m[0][3];
483 m1 = m[0][3] * other.m[1][0]
484 + m[1][3] * other.m[1][1]
485 + m[2][3] * other.m[1][2]
486 + m[3][3] * other.m[1][3];
487 m2 = m[0][3] * other.m[2][0]
488 + m[1][3] * other.m[2][1]
489 + m[2][3] * other.m[2][2]
490 + m[3][3] * other.m[2][3];
491 m[3][3] = m[0][3] * other.m[3][0]
492 + m[1][3] * other.m[3][1]
493 + m[2][3] * other.m[3][2]
494 + m[3][3] * other.m[3][3];
495 m[0][3] = m0;
496 m[1][3] = m1;
497 m[2][3] = m2;
498 return *this;
499}
500
501inline QMatrix4x4& QMatrix4x4::operator*=(float factor)
502{
503 m[0][0] *= factor;
504 m[0][1] *= factor;
505 m[0][2] *= factor;
506 m[0][3] *= factor;
507 m[1][0] *= factor;
508 m[1][1] *= factor;
509 m[1][2] *= factor;
510 m[1][3] *= factor;
511 m[2][0] *= factor;
512 m[2][1] *= factor;
513 m[2][2] *= factor;
514 m[2][3] *= factor;
515 m[3][0] *= factor;
516 m[3][1] *= factor;
517 m[3][2] *= factor;
518 m[3][3] *= factor;
519 flagBits = General;
520 return *this;
521}
522
523inline bool QMatrix4x4::operator==(const QMatrix4x4& other) const
524{
525 return m[0][0] == other.m[0][0] &&
526 m[0][1] == other.m[0][1] &&
527 m[0][2] == other.m[0][2] &&
528 m[0][3] == other.m[0][3] &&
529 m[1][0] == other.m[1][0] &&
530 m[1][1] == other.m[1][1] &&
531 m[1][2] == other.m[1][2] &&
532 m[1][3] == other.m[1][3] &&
533 m[2][0] == other.m[2][0] &&
534 m[2][1] == other.m[2][1] &&
535 m[2][2] == other.m[2][2] &&
536 m[2][3] == other.m[2][3] &&
537 m[3][0] == other.m[3][0] &&
538 m[3][1] == other.m[3][1] &&
539 m[3][2] == other.m[3][2] &&
540 m[3][3] == other.m[3][3];
541}
542
543inline bool QMatrix4x4::operator!=(const QMatrix4x4& other) const
544{
545 return m[0][0] != other.m[0][0] ||
546 m[0][1] != other.m[0][1] ||
547 m[0][2] != other.m[0][2] ||
548 m[0][3] != other.m[0][3] ||
549 m[1][0] != other.m[1][0] ||
550 m[1][1] != other.m[1][1] ||
551 m[1][2] != other.m[1][2] ||
552 m[1][3] != other.m[1][3] ||
553 m[2][0] != other.m[2][0] ||
554 m[2][1] != other.m[2][1] ||
555 m[2][2] != other.m[2][2] ||
556 m[2][3] != other.m[2][3] ||
557 m[3][0] != other.m[3][0] ||
558 m[3][1] != other.m[3][1] ||
559 m[3][2] != other.m[3][2] ||
560 m[3][3] != other.m[3][3];
561}
562
563inline QMatrix4x4 operator+(const QMatrix4x4& m1, const QMatrix4x4& m2)
564{
565 QMatrix4x4 m(Qt::Uninitialized);
566 m.m[0][0] = m1.m[0][0] + m2.m[0][0];
567 m.m[0][1] = m1.m[0][1] + m2.m[0][1];
568 m.m[0][2] = m1.m[0][2] + m2.m[0][2];
569 m.m[0][3] = m1.m[0][3] + m2.m[0][3];
570 m.m[1][0] = m1.m[1][0] + m2.m[1][0];
571 m.m[1][1] = m1.m[1][1] + m2.m[1][1];
572 m.m[1][2] = m1.m[1][2] + m2.m[1][2];
573 m.m[1][3] = m1.m[1][3] + m2.m[1][3];
574 m.m[2][0] = m1.m[2][0] + m2.m[2][0];
575 m.m[2][1] = m1.m[2][1] + m2.m[2][1];
576 m.m[2][2] = m1.m[2][2] + m2.m[2][2];
577 m.m[2][3] = m1.m[2][3] + m2.m[2][3];
578 m.m[3][0] = m1.m[3][0] + m2.m[3][0];
579 m.m[3][1] = m1.m[3][1] + m2.m[3][1];
580 m.m[3][2] = m1.m[3][2] + m2.m[3][2];
581 m.m[3][3] = m1.m[3][3] + m2.m[3][3];
582 return m;
583}
584
585inline QMatrix4x4 operator-(const QMatrix4x4& m1, const QMatrix4x4& m2)
586{
587 QMatrix4x4 m(Qt::Uninitialized);
588 m.m[0][0] = m1.m[0][0] - m2.m[0][0];
589 m.m[0][1] = m1.m[0][1] - m2.m[0][1];
590 m.m[0][2] = m1.m[0][2] - m2.m[0][2];
591 m.m[0][3] = m1.m[0][3] - m2.m[0][3];
592 m.m[1][0] = m1.m[1][0] - m2.m[1][0];
593 m.m[1][1] = m1.m[1][1] - m2.m[1][1];
594 m.m[1][2] = m1.m[1][2] - m2.m[1][2];
595 m.m[1][3] = m1.m[1][3] - m2.m[1][3];
596 m.m[2][0] = m1.m[2][0] - m2.m[2][0];
597 m.m[2][1] = m1.m[2][1] - m2.m[2][1];
598 m.m[2][2] = m1.m[2][2] - m2.m[2][2];
599 m.m[2][3] = m1.m[2][3] - m2.m[2][3];
600 m.m[3][0] = m1.m[3][0] - m2.m[3][0];
601 m.m[3][1] = m1.m[3][1] - m2.m[3][1];
602 m.m[3][2] = m1.m[3][2] - m2.m[3][2];
603 m.m[3][3] = m1.m[3][3] - m2.m[3][3];
604 return m;
605}
606
607inline QMatrix4x4 operator*(const QMatrix4x4& m1, const QMatrix4x4& m2)
608{
609 QMatrix4x4::Flags flagBits = m1.flagBits | m2.flagBits;
610 if (flagBits.toInt() < QMatrix4x4::Rotation2D) {
611 QMatrix4x4 m = m1;
612 m.m[3][0] += m.m[0][0] * m2.m[3][0];
613 m.m[3][1] += m.m[1][1] * m2.m[3][1];
614 m.m[3][2] += m.m[2][2] * m2.m[3][2];
615
616 m.m[0][0] *= m2.m[0][0];
617 m.m[1][1] *= m2.m[1][1];
618 m.m[2][2] *= m2.m[2][2];
619 m.flagBits = flagBits;
620 return m;
621 }
622
623 QMatrix4x4 m(Qt::Uninitialized);
624 m.m[0][0] = m1.m[0][0] * m2.m[0][0]
625 + m1.m[1][0] * m2.m[0][1]
626 + m1.m[2][0] * m2.m[0][2]
627 + m1.m[3][0] * m2.m[0][3];
628 m.m[0][1] = m1.m[0][1] * m2.m[0][0]
629 + m1.m[1][1] * m2.m[0][1]
630 + m1.m[2][1] * m2.m[0][2]
631 + m1.m[3][1] * m2.m[0][3];
632 m.m[0][2] = m1.m[0][2] * m2.m[0][0]
633 + m1.m[1][2] * m2.m[0][1]
634 + m1.m[2][2] * m2.m[0][2]
635 + m1.m[3][2] * m2.m[0][3];
636 m.m[0][3] = m1.m[0][3] * m2.m[0][0]
637 + m1.m[1][3] * m2.m[0][1]
638 + m1.m[2][3] * m2.m[0][2]
639 + m1.m[3][3] * m2.m[0][3];
640
641 m.m[1][0] = m1.m[0][0] * m2.m[1][0]
642 + m1.m[1][0] * m2.m[1][1]
643 + m1.m[2][0] * m2.m[1][2]
644 + m1.m[3][0] * m2.m[1][3];
645 m.m[1][1] = m1.m[0][1] * m2.m[1][0]
646 + m1.m[1][1] * m2.m[1][1]
647 + m1.m[2][1] * m2.m[1][2]
648 + m1.m[3][1] * m2.m[1][3];
649 m.m[1][2] = m1.m[0][2] * m2.m[1][0]
650 + m1.m[1][2] * m2.m[1][1]
651 + m1.m[2][2] * m2.m[1][2]
652 + m1.m[3][2] * m2.m[1][3];
653 m.m[1][3] = m1.m[0][3] * m2.m[1][0]
654 + m1.m[1][3] * m2.m[1][1]
655 + m1.m[2][3] * m2.m[1][2]
656 + m1.m[3][3] * m2.m[1][3];
657
658 m.m[2][0] = m1.m[0][0] * m2.m[2][0]
659 + m1.m[1][0] * m2.m[2][1]
660 + m1.m[2][0] * m2.m[2][2]
661 + m1.m[3][0] * m2.m[2][3];
662 m.m[2][1] = m1.m[0][1] * m2.m[2][0]
663 + m1.m[1][1] * m2.m[2][1]
664 + m1.m[2][1] * m2.m[2][2]
665 + m1.m[3][1] * m2.m[2][3];
666 m.m[2][2] = m1.m[0][2] * m2.m[2][0]
667 + m1.m[1][2] * m2.m[2][1]
668 + m1.m[2][2] * m2.m[2][2]
669 + m1.m[3][2] * m2.m[2][3];
670 m.m[2][3] = m1.m[0][3] * m2.m[2][0]
671 + m1.m[1][3] * m2.m[2][1]
672 + m1.m[2][3] * m2.m[2][2]
673 + m1.m[3][3] * m2.m[2][3];
674
675 m.m[3][0] = m1.m[0][0] * m2.m[3][0]
676 + m1.m[1][0] * m2.m[3][1]
677 + m1.m[2][0] * m2.m[3][2]
678 + m1.m[3][0] * m2.m[3][3];
679 m.m[3][1] = m1.m[0][1] * m2.m[3][0]
680 + m1.m[1][1] * m2.m[3][1]
681 + m1.m[2][1] * m2.m[3][2]
682 + m1.m[3][1] * m2.m[3][3];
683 m.m[3][2] = m1.m[0][2] * m2.m[3][0]
684 + m1.m[1][2] * m2.m[3][1]
685 + m1.m[2][2] * m2.m[3][2]
686 + m1.m[3][2] * m2.m[3][3];
687 m.m[3][3] = m1.m[0][3] * m2.m[3][0]
688 + m1.m[1][3] * m2.m[3][1]
689 + m1.m[2][3] * m2.m[3][2]
690 + m1.m[3][3] * m2.m[3][3];
691 m.flagBits = flagBits;
692 return m;
693}
694
695#ifndef QT_NO_VECTOR3D
696
697#if QT_DEPRECATED_SINCE(6, 1)
698
699QT_DEPRECATED_VERSION_X_6_1("Extend the QVector3D to a QVector4D with 1.0 as the w coordinate before multiplying")
700inline QVector3D operator*(const QVector3D& vector, const QMatrix4x4& matrix)
701{
702 float x, y, z, w;
703 x = vector.x() * matrix.m[0][0] +
704 vector.y() * matrix.m[0][1] +
705 vector.z() * matrix.m[0][2] +
706 matrix.m[0][3];
707 y = vector.x() * matrix.m[1][0] +
708 vector.y() * matrix.m[1][1] +
709 vector.z() * matrix.m[1][2] +
710 matrix.m[1][3];
711 z = vector.x() * matrix.m[2][0] +
712 vector.y() * matrix.m[2][1] +
713 vector.z() * matrix.m[2][2] +
714 matrix.m[2][3];
715 w = vector.x() * matrix.m[3][0] +
716 vector.y() * matrix.m[3][1] +
717 vector.z() * matrix.m[3][2] +
718 matrix.m[3][3];
719 if (w == 1.0f)
720 return QVector3D(x, y, z);
721 else
722 return QVector3D(x / w, y / w, z / w);
723}
724
725QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(vector) instead")
726inline QVector3D operator*(const QMatrix4x4& matrix, const QVector3D& vector)
727{
728 return matrix.map(vector);
729}
730
731#endif
732
733#endif
734
735#ifndef QT_NO_VECTOR4D
736
737inline QVector4D operator*(const QVector4D& vector, const QMatrix4x4& matrix)
738{
739 float x, y, z, w;
740 x = vector.x() * matrix.m[0][0] +
741 vector.y() * matrix.m[0][1] +
742 vector.z() * matrix.m[0][2] +
743 vector.w() * matrix.m[0][3];
744 y = vector.x() * matrix.m[1][0] +
745 vector.y() * matrix.m[1][1] +
746 vector.z() * matrix.m[1][2] +
747 vector.w() * matrix.m[1][3];
748 z = vector.x() * matrix.m[2][0] +
749 vector.y() * matrix.m[2][1] +
750 vector.z() * matrix.m[2][2] +
751 vector.w() * matrix.m[2][3];
752 w = vector.x() * matrix.m[3][0] +
753 vector.y() * matrix.m[3][1] +
754 vector.z() * matrix.m[3][2] +
755 vector.w() * matrix.m[3][3];
756 return QVector4D(x, y, z, w);
757}
758
759inline QVector4D operator*(const QMatrix4x4& matrix, const QVector4D& vector)
760{
761 float x, y, z, w;
762 x = vector.x() * matrix.m[0][0] +
763 vector.y() * matrix.m[1][0] +
764 vector.z() * matrix.m[2][0] +
765 vector.w() * matrix.m[3][0];
766 y = vector.x() * matrix.m[0][1] +
767 vector.y() * matrix.m[1][1] +
768 vector.z() * matrix.m[2][1] +
769 vector.w() * matrix.m[3][1];
770 z = vector.x() * matrix.m[0][2] +
771 vector.y() * matrix.m[1][2] +
772 vector.z() * matrix.m[2][2] +
773 vector.w() * matrix.m[3][2];
774 w = vector.x() * matrix.m[0][3] +
775 vector.y() * matrix.m[1][3] +
776 vector.z() * matrix.m[2][3] +
777 vector.w() * matrix.m[3][3];
778 return QVector4D(x, y, z, w);
779}
780
781#endif
782
783inline QPoint operator*(const QPoint& point, const QMatrix4x4& matrix)
784{
785 float xin, yin;
786 float x, y, w;
787 xin = point.x();
788 yin = point.y();
789 x = xin * matrix.m[0][0] +
790 yin * matrix.m[0][1] +
791 matrix.m[0][3];
792 y = xin * matrix.m[1][0] +
793 yin * matrix.m[1][1] +
794 matrix.m[1][3];
795 w = xin * matrix.m[3][0] +
796 yin * matrix.m[3][1] +
797 matrix.m[3][3];
798 if (w == 1.0f)
799 return QPoint(qRound(x), qRound(y));
800 else
801 return QPoint(qRound(x / w), qRound(y / w));
802}
803
804inline QPointF operator*(const QPointF& point, const QMatrix4x4& matrix)
805{
806 float xin, yin;
807 float x, y, w;
808 xin = float(point.x());
809 yin = float(point.y());
810 x = xin * matrix.m[0][0] +
811 yin * matrix.m[0][1] +
812 matrix.m[0][3];
813 y = xin * matrix.m[1][0] +
814 yin * matrix.m[1][1] +
815 matrix.m[1][3];
816 w = xin * matrix.m[3][0] +
817 yin * matrix.m[3][1] +
818 matrix.m[3][3];
819 if (w == 1.0f) {
820 return QPointF(qreal(x), qreal(y));
821 } else {
822 return QPointF(qreal(x / w), qreal(y / w));
823 }
824}
825
826#if QT_DEPRECATED_SINCE(6, 1)
827
828QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(point) instead")
829inline QPoint operator*(const QMatrix4x4& matrix, const QPoint& point)
830{
831 return matrix.map(point);
832}
833
834QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(point) instead")
835inline QPointF operator*(const QMatrix4x4& matrix, const QPointF& point)
836{
837 return matrix.map(point);
838}
839
840#endif
841
842inline QMatrix4x4 operator-(const QMatrix4x4& matrix)
843{
844 QMatrix4x4 m(Qt::Uninitialized);
845 m.m[0][0] = -matrix.m[0][0];
846 m.m[0][1] = -matrix.m[0][1];
847 m.m[0][2] = -matrix.m[0][2];
848 m.m[0][3] = -matrix.m[0][3];
849 m.m[1][0] = -matrix.m[1][0];
850 m.m[1][1] = -matrix.m[1][1];
851 m.m[1][2] = -matrix.m[1][2];
852 m.m[1][3] = -matrix.m[1][3];
853 m.m[2][0] = -matrix.m[2][0];
854 m.m[2][1] = -matrix.m[2][1];
855 m.m[2][2] = -matrix.m[2][2];
856 m.m[2][3] = -matrix.m[2][3];
857 m.m[3][0] = -matrix.m[3][0];
858 m.m[3][1] = -matrix.m[3][1];
859 m.m[3][2] = -matrix.m[3][2];
860 m.m[3][3] = -matrix.m[3][3];
861 return m;
862}
863
864inline QMatrix4x4 operator*(float factor, const QMatrix4x4& matrix)
865{
866 QMatrix4x4 m(Qt::Uninitialized);
867 m.m[0][0] = matrix.m[0][0] * factor;
868 m.m[0][1] = matrix.m[0][1] * factor;
869 m.m[0][2] = matrix.m[0][2] * factor;
870 m.m[0][3] = matrix.m[0][3] * factor;
871 m.m[1][0] = matrix.m[1][0] * factor;
872 m.m[1][1] = matrix.m[1][1] * factor;
873 m.m[1][2] = matrix.m[1][2] * factor;
874 m.m[1][3] = matrix.m[1][3] * factor;
875 m.m[2][0] = matrix.m[2][0] * factor;
876 m.m[2][1] = matrix.m[2][1] * factor;
877 m.m[2][2] = matrix.m[2][2] * factor;
878 m.m[2][3] = matrix.m[2][3] * factor;
879 m.m[3][0] = matrix.m[3][0] * factor;
880 m.m[3][1] = matrix.m[3][1] * factor;
881 m.m[3][2] = matrix.m[3][2] * factor;
882 m.m[3][3] = matrix.m[3][3] * factor;
883 return m;
884}
885
886inline QMatrix4x4 operator*(const QMatrix4x4& matrix, float factor)
887{
888 QMatrix4x4 m(Qt::Uninitialized);
889 m.m[0][0] = matrix.m[0][0] * factor;
890 m.m[0][1] = matrix.m[0][1] * factor;
891 m.m[0][2] = matrix.m[0][2] * factor;
892 m.m[0][3] = matrix.m[0][3] * factor;
893 m.m[1][0] = matrix.m[1][0] * factor;
894 m.m[1][1] = matrix.m[1][1] * factor;
895 m.m[1][2] = matrix.m[1][2] * factor;
896 m.m[1][3] = matrix.m[1][3] * factor;
897 m.m[2][0] = matrix.m[2][0] * factor;
898 m.m[2][1] = matrix.m[2][1] * factor;
899 m.m[2][2] = matrix.m[2][2] * factor;
900 m.m[2][3] = matrix.m[2][3] * factor;
901 m.m[3][0] = matrix.m[3][0] * factor;
902 m.m[3][1] = matrix.m[3][1] * factor;
903 m.m[3][2] = matrix.m[3][2] * factor;
904 m.m[3][3] = matrix.m[3][3] * factor;
905 return m;
906}
907
908inline QPoint QMatrix4x4::map(const QPoint& point) const
909{
910 float xin, yin;
911 float x, y, w;
912 xin = point.x();
913 yin = point.y();
914 if (flagBits == QMatrix4x4::Identity) {
915 return point;
916 } else if (flagBits.toInt() < QMatrix4x4::Rotation2D) {
917 // Translation | Scale
918 return QPoint(qRound(xin * m[0][0] + m[3][0]),
919 qRound(yin * m[1][1] + m[3][1]));
920 } else if (flagBits.toInt() < QMatrix4x4::Perspective) {
921 return QPoint(qRound(xin * m[0][0] + yin * m[1][0] + m[3][0]),
922 qRound(xin * m[0][1] + yin * m[1][1] + m[3][1]));
923 } else {
924 x = xin * m[0][0] +
925 yin * m[1][0] +
926 m[3][0];
927 y = xin * m[0][1] +
928 yin * m[1][1] +
929 m[3][1];
930 w = xin * m[0][3] +
931 yin * m[1][3] +
932 m[3][3];
933 if (w == 1.0f)
934 return QPoint(qRound(x), qRound(y));
935 else
936 return QPoint(qRound(x / w), qRound(y / w));
937 }
938}
939
940inline QPointF QMatrix4x4::map(const QPointF& point) const
941{
942 qreal xin, yin;
943 qreal x, y, w;
944 xin = point.x();
945 yin = point.y();
946 if (flagBits == QMatrix4x4::Identity) {
947 return point;
948 } else if (flagBits.toInt() < QMatrix4x4::Rotation2D) {
949 // Translation | Scale
950 return QPointF(xin * qreal(m[0][0]) + qreal(m[3][0]),
951 yin * qreal(m[1][1]) + qreal(m[3][1]));
952 } else if (flagBits.toInt() < QMatrix4x4::Perspective) {
953 return QPointF(xin * qreal(m[0][0]) + yin * qreal(m[1][0]) +
954 qreal(m[3][0]),
955 xin * qreal(m[0][1]) + yin * qreal(m[1][1]) +
956 qreal(m[3][1]));
957 } else {
958 x = xin * qreal(m[0][0]) +
959 yin * qreal(m[1][0]) +
960 qreal(m[3][0]);
961 y = xin * qreal(m[0][1]) +
962 yin * qreal(m[1][1]) +
963 qreal(m[3][1]);
964 w = xin * qreal(m[0][3]) +
965 yin * qreal(m[1][3]) +
966 qreal(m[3][3]);
967 if (w == 1.0) {
968 return QPointF(qreal(x), qreal(y));
969 } else {
970 return QPointF(qreal(x / w), qreal(y / w));
971 }
972 }
973}
974
975#ifndef QT_NO_VECTOR3D
976
977inline QVector3D QMatrix4x4::map(const QVector3D& point) const
978{
979 float x, y, z, w;
980 if (flagBits == QMatrix4x4::Identity) {
981 return point;
982 } else if (flagBits.toInt() < QMatrix4x4::Rotation2D) {
983 // Translation | Scale
984 return QVector3D(point.x() * m[0][0] + m[3][0],
985 point.y() * m[1][1] + m[3][1],
986 point.z() * m[2][2] + m[3][2]);
987 } else if (flagBits.toInt() < QMatrix4x4::Rotation) {
988 // Translation | Scale | Rotation2D
989 return QVector3D(point.x() * m[0][0] + point.y() * m[1][0] + m[3][0],
990 point.x() * m[0][1] + point.y() * m[1][1] + m[3][1],
991 point.z() * m[2][2] + m[3][2]);
992 } else {
993 x = point.x() * m[0][0] +
994 point.y() * m[1][0] +
995 point.z() * m[2][0] +
996 m[3][0];
997 y = point.x() * m[0][1] +
998 point.y() * m[1][1] +
999 point.z() * m[2][1] +
1000 m[3][1];
1001 z = point.x() * m[0][2] +
1002 point.y() * m[1][2] +
1003 point.z() * m[2][2] +
1004 m[3][2];
1005 w = point.x() * m[0][3] +
1006 point.y() * m[1][3] +
1007 point.z() * m[2][3] +
1008 m[3][3];
1009 if (w == 1.0f)
1010 return QVector3D(x, y, z);
1011 else
1012 return QVector3D(x / w, y / w, z / w);
1013 }
1014}
1015
1016inline QVector3D QMatrix4x4::mapVector(const QVector3D& vector) const
1017{
1018 if (flagBits.toInt() < Scale) {
1019 // Translation
1020 return vector;
1021 } else if (flagBits.toInt() < Rotation2D) {
1022 // Translation | Scale
1023 return QVector3D(vector.x() * m[0][0],
1024 vector.y() * m[1][1],
1025 vector.z() * m[2][2]);
1026 } else {
1027 return QVector3D(vector.x() * m[0][0] +
1028 vector.y() * m[1][0] +
1029 vector.z() * m[2][0],
1030 vector.x() * m[0][1] +
1031 vector.y() * m[1][1] +
1032 vector.z() * m[2][1],
1033 vector.x() * m[0][2] +
1034 vector.y() * m[1][2] +
1035 vector.z() * m[2][2]);
1036 }
1037}
1038
1039#endif
1040
1041#ifndef QT_NO_VECTOR4D
1042
1043inline QVector4D QMatrix4x4::map(const QVector4D& point) const
1044{
1045 return *this * point;
1046}
1047
1048#endif
1049
1050inline float *QMatrix4x4::data()
1051{
1052 // We have to assume that the caller will modify the matrix elements,
1053 // so we flip it over to "General" mode.
1054 flagBits = General;
1055 return *m;
1056}
1057
1058inline void QMatrix4x4::viewport(const QRectF &rect)
1059{
1060 viewport(float(rect.x()), float(rect.y()), float(rect.width()), float(rect.height()));
1061}
1062
1063QT_WARNING_POP
1064
1065#ifndef QT_NO_DEBUG_STREAM
1066Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QMatrix4x4 &m);
1067#endif
1068
1069#ifndef QT_NO_DATASTREAM
1070Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QMatrix4x4 &);
1071Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QMatrix4x4 &);
1072#endif
1073
1074#endif
1075
1076QT_END_NAMESPACE
1077
1078#endif
QDataStream
\inmodule QtCore\reentrant
Definition qdatastream.h:46
QDebug
\inmodule QtCore
QMatrix4x4
The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.
Definition qmatrix4x4.h:25
QMatrix4x4::operator*=
QMatrix4x4 & operator*=(const QMatrix4x4 &other)
Multiplies the contents of other by this matrix.
Definition qmatrix4x4.h:402
QMatrix4x4::fill
void fill(float value)
Fills all elements of this matrx with value.
Definition qmatrix4x4.h:337
QMatrix4x4::operator==
bool operator==(const QMatrix4x4 &other) const
Returns true if this matrix is identical to other; false otherwise.
Definition qmatrix4x4.h:523
QMatrix4x4::column
QVector4D column(int index) const
Returns the elements of column index as a 4D vector.
Definition qmatrix4x4.h:259
QMatrix4x4::QMatrix4x4
QMatrix4x4()
Constructs an identity matrix.
Definition qmatrix4x4.h:27
QMatrix4x4::operator+=
QMatrix4x4 & operator+=(const QMatrix4x4 &other)
Adds the contents of other to this matrix.
Definition qmatrix4x4.h:358
QMatrix4x4::operator()
const float & operator()(int row, int column) const
Returns a constant reference to the element at position (row, column) in this matrix.
Definition qmatrix4x4.h:245
QMatrix4x4::data
float * data()
Returns a pointer to the raw data of this matrix.
Definition qmatrix4x4.h:1050
QMatrix4x4::setColumn
void setColumn(int index, const QVector4D &value)
Sets the elements of column index to the components of value.
Definition qmatrix4x4.h:265
QMatrix4x4::isAffine
bool isAffine() const
Definition qmatrix4x4.h:294
QMatrix4x4::toGenericMatrix
QGenericMatrix< N, M, float > toGenericMatrix() const
Constructs a NxM generic matrix from the left-most N columns and top-most M rows of this 4x4 matrix.
Definition qmatrix4x4.h:228
QMatrix4x4::operator-=
QMatrix4x4 & operator-=(const QMatrix4x4 &other)
Subtracts the contents of other from this matrix.
Definition qmatrix4x4.h:380
QMatrix4x4::row
QVector4D row(int index) const
Returns the elements of row index as a 4D vector.
Definition qmatrix4x4.h:275
QMatrix4x4::mapVector
QVector3D mapVector(const QVector3D &vector) const
Maps vector by multiplying the top 3x3 portion of this matrix by vector.
Definition qmatrix4x4.h:1016
QMatrix4x4::setRow
void setRow(int index, const QVector4D &value)
Sets the elements of row index to the components of value.
Definition qmatrix4x4.h:281
QMatrix4x4::QMatrix4x4
QMatrix4x4(const QGenericMatrix< N, M, float > &matrix)
Constructs a 4x4 matrix from the left-most 4 columns and top-most 4 rows of matrix.
QMatrix4x4::map
QPoint map(const QPoint &point) const
Maps point by multiplying this matrix by point.
Definition qmatrix4x4.h:908
QMatrix4x4::setToIdentity
void setToIdentity()
Sets this matrix to the identity.
Definition qmatrix4x4.h:316
QMatrix4x4::isIdentity
bool isIdentity() const
Returns true if this matrix is the identity; false otherwise.
Definition qmatrix4x4.h:299
QMatrix4x4::QMatrix4x4
QMatrix4x4(Qt::Initialization)
Definition qmatrix4x4.h:28
QMatrix4x4::viewport
void viewport(const QRectF &rect)
This is an overloaded member function, provided for convenience. It differs from the above function o...
Definition qmatrix4x4.h:1058
QMatrix4x4::constData
const float * constData() const
Returns a constant pointer to the raw data of this matrix.
Definition qmatrix4x4.h:147
QMatrix4x4::data
const float * data() const
Returns a constant pointer to the raw data of this matrix.
Definition qmatrix4x4.h:146
QMatrix4x4::operator!=
bool operator!=(const QMatrix4x4 &other) const
Returns true if this matrix is not identical to other; false otherwise.
Definition qmatrix4x4.h:543
QPointF
\inmodule QtCore\reentrant
Definition qpoint.h:217
QPointF::x
constexpr qreal x() const noexcept
Returns the x coordinate of this point.
Definition qpoint.h:343
QPointF::y
constexpr qreal y() const noexcept
Returns the y coordinate of this point.
Definition qpoint.h:348
QPoint
\inmodule QtCore\reentrant
Definition qpoint.h:25
QPoint::x
constexpr int x() const noexcept
Returns the x coordinate of this point.
Definition qpoint.h:130
QPoint::y
constexpr int y() const noexcept
Returns the y coordinate of this point.
Definition qpoint.h:135
QQuaternion
The QQuaternion class represents a quaternion consisting of a vector and scalar.
QRectF
\inmodule QtCore\reentrant
Definition qrect.h:484
QRect
\inmodule QtCore\reentrant
Definition qrect.h:30
QTransform
The QTransform class specifies 2D transformations of a coordinate system.
Definition qtransform.h:20
QVariant
\inmodule QtCore
Definition qvariant.h:65
QVector3D
The QVector3D class represents a vector or vertex in 3D space.
Definition qvectornd.h:171
QVector3D::y
constexpr float y() const noexcept
Returns the y coordinate of this point.
Definition qvectornd.h:671
QVector3D::x
constexpr float x() const noexcept
Returns the x coordinate of this point.
Definition qvectornd.h:670
QVector3D::z
constexpr float z() const noexcept
Returns the z coordinate of this point.
Definition qvectornd.h:672
QVector4D
The QVector4D class represents a vector or vertex in 4D space.
Definition qvectornd.h:330
map
QMap< QString, QString > map
[6]
Definition doc_src_containers.cpp:96
rect
rect
[4]
Definition doc_src_styles.cpp:43
QT_BEGIN_NAMESPACE
Combined button and popup list for selecting options.
Definition qstandardpaths_haiku.cpp:21
QT_END_NAMESPACE
Definition qsharedpointer.cpp:1590
Qt::Uninitialized
constexpr Initialization Uninitialized
Definition qnamespace.h:1597
Qt::Initialization
Initialization
Definition qnamespace.h:1594
QT_WARNING_POP
#define QT_WARNING_POP
Definition qcompilerdetection.h:1169
QT_WARNING_DISABLE_FLOAT_COMPARE
#define QT_WARNING_DISABLE_FLOAT_COMPARE
Definition qcompilerdetection.h:1175
QT_WARNING_PUSH
#define QT_WARNING_PUSH
Definition qcompilerdetection.h:1168
operator!=
constexpr bool operator!=(const timespec &t1, const timespec &t2)
Definition qcore_unix_p.h:110
operator+
constexpr timespec operator+(const timespec &t1, const timespec &t2)
Definition qcore_unix_p.h:118
operator*
constexpr timespec operator*(const timespec &t1, int mul)
Definition qcore_unix_p.h:132
operator+=
constexpr timespec & operator+=(timespec &t1, const timespec &t2)
Definition qcore_unix_p.h:112
operator-
constexpr timespec operator-(const timespec &t1, const timespec &t2)
Definition qcore_unix_p.h:125
value
EGLOutputLayerEXT EGLint EGLAttrib value
[5]
Definition qeglstreamconvenience_p.h:46
Q_DECLARE_FLAGS
#define Q_DECLARE_FLAGS(Flags, Enum)
Definition qflags.h:174
Q_DECLARE_OPERATORS_FOR_FLAGS
#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags)
Definition qflags.h:194
qFuzzyCompare
bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) noexcept
Definition qfloat16.h:333
qRound
int qRound(qfloat16 d) noexcept
Definition qfloat16.h:327
Flags
Flags
Definition qfontsubset.cpp:650
operator/
constexpr QMargins operator/(const QMargins &margins, int divisor)
Definition qmargins.h:185
operator*
QMatrix4x4 operator*(const QMatrix4x4 &m1, const QMatrix4x4 &m2)
Definition qmatrix4x4.h:607
operator>>
Q_GUI_EXPORT QDataStream & operator>>(QDataStream &, QMatrix4x4 &)
Definition qmatrix4x4.cpp:2049
operator-
QMatrix4x4 operator-(const QMatrix4x4 &m1, const QMatrix4x4 &m2)
Definition qmatrix4x4.h:585
operator<<
QT_WARNING_POP Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QMatrix4x4 &m)
Definition qmatrix4x4.cpp:1983
operator/
Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4 &matrix, float divisor)
operator+
QMatrix4x4 operator+(const QMatrix4x4 &m1, const QMatrix4x4 &m2)
Definition qmatrix4x4.h:563
values
GLenum GLsizei GLsizei GLint * values
[15]
Definition qopengles2ext.h:1032
z
GLuint GLfloat GLfloat GLfloat GLfloat GLfloat z
Definition qopengles2ext.h:2707
x
GLint GLint GLint GLint GLint x
[0]
Definition qopengles2ext.h:605
m
const GLfloat * m
Definition qopengles2ext.h:3203
w
GLfloat GLfloat GLfloat w
[0]
Definition qopengles2ext.h:789
height
GLint GLsizei GLsizei height
Definition qopengles2ext.h:206
divisor
GLuint divisor
Definition qopengles2ext.h:915
index
GLuint index
[2]
Definition qopengles2ext.h:331
top
GLdouble GLdouble GLdouble GLdouble top
Definition qopengles2ext.h:3218
right
GLdouble GLdouble right
Definition qopengles2ext.h:3218
data
GLint GLsizei GLsizei GLenum GLenum GLsizei void * data
Definition qopengles2ext.h:206
width
GLint GLsizei width
Definition qopengles2ext.h:206
left
GLint left
Definition qopengles2ext.h:792
bottom
GLint GLint bottom
Definition qopengles2ext.h:792
angle
GLfloat angle
Definition qopengles2ext.h:3231
flags
GLbitfield flags
Definition qopengles2ext.h:1026
y
GLint y
Definition qopengles2ext.h:206
column
GLenum GLenum GLsizei void GLsizei void * column
Definition qopenglext.h:2747
transform
GLuint GLenum GLenum transform
Definition qopenglext.h:11564
matrix
GLuint GLenum matrix
Definition qopenglext.h:11564
row
GLenum GLenum GLsizei void * row
Definition qopenglext.h:2747
result
GLuint64EXT * result
[6]
Definition qopenglext.h:10932
scale
GLenum GLenum GLenum GLenum GLenum scale
Definition qopenglext.h:10817
operator==
bool operator==(const QRandomGenerator &rng1, const QRandomGenerator &rng2)
Definition qrandom.cpp:1220
Q_ASSERT
#define Q_ASSERT(cond)
Definition qrandom.cpp:47
M
#define M(_x, _y)
QT_DEPRECATED_VERSION_X_6_1
#define QT_DEPRECATED_VERSION_X_6_1(text)
Definition qtdeprecationmarkers.h:135
Q_PRIMITIVE_TYPE
@ Q_PRIMITIVE_TYPE
Definition qtypeinfo.h:157
Q_DECLARE_TYPEINFO
#define Q_DECLARE_TYPEINFO(TYPE, FLAGS)
Definition qtypeinfo.h:180
qreal
double qreal
Definition qtypes.h:187
translate
static bool translate(xcb_connection_t *connection, xcb_window_t child, xcb_window_t parent, int *x, int *y)
Definition qxcbscreen.cpp:985
vector
QList< int > vector
[14]
Definition src_concurrent_qtconcurrentmap.cpp:156
o
TestClass o
Definition src_concurrent_qtconcurrentrun.cpp:86
operator<<
QDataStream & operator<<(QDataStream &out, const MyClass &myObj)
[4]
fill
ba fill(true)
other
QSharedPointer< T > other(t)
[5]
viewport
view viewport() -> scroll(dx, dy, deviceRect)