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qstandardgestures.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/widgets/kernel/qstandardgestures.cpp
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1-
2-
3-
4-
5-
6-
7-
8static const qreal kSingleStepScaleMax = 2.0;-
9static const qreal kSingleStepScaleMin = 0.1;-
10-
11QGesture *QPanGestureRecognizer::create(QObject *target)-
12{-
13 if (target
targetDescription
TRUEnever evaluated
FALSEnever evaluated
 && target->isWidgetType()
target->isWidgetType()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
14-
15-
16-
17-
18-
19 static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents);-
20-
21 }
never executed: end of block
0
22 return
never executed: return new QPanGesture;
 new QPanGesture;
never executed: return new QPanGesture;
0
23}-
24-
25static QPointF panOffset(const QList<QTouchEvent::TouchPoint> &touchPoints, int maxCount)-
26{-
27 QPointF result;-
28 const int count = qMin(touchPoints.size(), maxCount);-
29 for (int p = 0; p < count
p < countDescription
TRUEnever evaluated
FALSEnever evaluated
; ++p)		0
30 result += touchPoints.at(p).pos() - touchPoints.at(p).startPos();
never executed: result += touchPoints.at(p).pos() - touchPoints.at(p).startPos();
0
31 return
never executed: return result / qreal(count);
 result / qreal(count);
never executed: return result / qreal(count);
0
32}-
33-
34QGestureRecognizer::Result QPanGestureRecognizer::recognize(QGesture *state,-
35 QObject *,-
36 QEvent *event)-
37{-
38 QPanGesture *q = static_cast<QPanGesture *>(state);-
39 QPanGesturePrivate *d = q->d_func();-
40-
41 QGestureRecognizer::Result result = QGestureRecognizer::Ignore;-
42 switch (event->type()) {-
43 case
never executed: case QEvent::TouchBegin:
 QEvent::TouchBegin:
never executed: case QEvent::TouchBegin:
 {		0
44 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
45 result = QGestureRecognizer::MayBeGesture;-
46 QTouchEvent::TouchPoint p = ev->touchPoints().at(0);-
47 d->lastOffset = d->offset = QPointF();-
48 d->pointCount = m_pointCount;-
49 break;
never executed: break;
0
50 }-
51 case
never executed: case QEvent::TouchEnd:
 QEvent::TouchEnd:
never executed: case QEvent::TouchEnd:
 {		0
52 if (q->state() != Qt::NoGesture
q->state() != Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
53 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
54 if (ev->touchPoints().size() == d->pointCount
ev->touchPoint... d->pointCountDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
55 d->lastOffset = d->offset;-
56 d->offset = panOffset(ev->touchPoints(), d->pointCount);-
57 }
never executed: end of block
0
58 result = QGestureRecognizer::FinishGesture;-
59 }
never executed: end of block
 else {		0
60 result = QGestureRecognizer::CancelGesture;-
61 }
never executed: end of block
0
62 break;
never executed: break;
0
63 }-
64 case
never executed: case QEvent::TouchUpdate:
 QEvent::TouchUpdate:
never executed: case QEvent::TouchUpdate:
 {		0
65 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
66 if (ev->touchPoints().size() >= d->pointCount
ev->touchPoint... d->pointCountDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
67 d->lastOffset = d->offset;-
68 d->offset = panOffset(ev->touchPoints(), d->pointCount);-
69 if (d->offset.x() > 10
d->offset.x() > 10Description
TRUEnever evaluated
FALSEnever evaluated
 || d->offset.y() > 10
d->offset.y() > 10Description
TRUEnever evaluated
FALSEnever evaluated
 ||		0
70 d->offset.x() < -10
d->offset.x() < -10Description
TRUEnever evaluated
FALSEnever evaluated
 || d->offset.y() < -10
d->offset.y() < -10Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
71 q->setHotSpot(ev->touchPoints().first().startScreenPos());-
72 result = QGestureRecognizer::TriggerGesture;-
73 }
never executed: end of block
 else {		0
74 result = QGestureRecognizer::MayBeGesture;-
75 }
never executed: end of block
0
76 }-
77 break;
never executed: break;
0
78 }-
79 default
never executed: default:
:
never executed: default:
0
80 break;
never executed: break;
0
81 }-
82 return
never executed: return result;
 result;
never executed: return result;
0
83}-
84-
85void QPanGestureRecognizer::reset(QGesture *state)-
86{-
87 QPanGesture *pan = static_cast<QPanGesture*>(state);-
88 QPanGesturePrivate *d = pan->d_func();-
89-
90 d->lastOffset = d->offset = QPointF();-
91 d->acceleration = 0;-
92-
93 QGestureRecognizer::reset(state);-
94}
never executed: end of block
0
95-
96-
97-
98-
99-
100-
101QPinchGestureRecognizer::QPinchGestureRecognizer()-
102{-
103}-
104-
105QGesture *QPinchGestureRecognizer::create(QObject *target)-
106{-
107 if (target
targetDescription
TRUEnever evaluated
FALSEnever evaluated
 && target->isWidgetType()
target->isWidgetType()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
108 static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents);-
109 }
never executed: end of block
0
110 return
never executed: return new QPinchGesture;
 new QPinchGesture;
never executed: return new QPinchGesture;
0
111}-
112-
113QGestureRecognizer::Result QPinchGestureRecognizer::recognize(QGesture *state,-
114 QObject *,-
115 QEvent *event)-
116{-
117 QPinchGesture *q = static_cast<QPinchGesture *>(state);-
118 QPinchGesturePrivate *d = q->d_func();-
119-
120 QGestureRecognizer::Result result = QGestureRecognizer::Ignore;-
121-
122 switch (event->type()) {-
123 case
never executed: case QEvent::TouchBegin:
 QEvent::TouchBegin:
never executed: case QEvent::TouchBegin:
 {		0
124 result = QGestureRecognizer::MayBeGesture;-
125 break;
never executed: break;
0
126 }-
127 case
never executed: case QEvent::TouchEnd:
 QEvent::TouchEnd:
never executed: case QEvent::TouchEnd:
 {		0
128 if (q->state() != Qt::NoGesture
q->state() != Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
129 result = QGestureRecognizer::FinishGesture;-
130 }
never executed: end of block
 else {		0
131 result = QGestureRecognizer::CancelGesture;-
132 }
never executed: end of block
0
133 break;
never executed: break;
0
134 }-
135 case
never executed: case QEvent::TouchUpdate:
 QEvent::TouchUpdate:
never executed: case QEvent::TouchUpdate:
 {		0
136 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
137 d->changeFlags = 0;-
138 if (ev->touchPoints().size() == 2
ev->touchPoints().size() == 2Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
139 QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0);-
140 QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1);-
141-
142 d->hotSpot = p1.screenPos();-
143 d->isHotSpotSet = true;-
144-
145 QPointF centerPoint = (p1.screenPos() + p2.screenPos()) / 2.0;-
146 if (d->isNewSequence
d->isNewSequenceDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
147 d->startPosition[0] = p1.screenPos();-
148 d->startPosition[1] = p2.screenPos();-
149 d->lastCenterPoint = centerPoint;-
150 }
never executed: end of block
 else {		0
151 d->lastCenterPoint = d->centerPoint;-
152 }
never executed: end of block
0
153 d->centerPoint = centerPoint;-
154-
155 d->changeFlags |= QPinchGesture::CenterPointChanged;-
156-
157 if (d->isNewSequence
d->isNewSequenceDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
158 d->scaleFactor = 1.0;-
159 d->lastScaleFactor = 1.0;-
160 }
never executed: end of block
 else {		0
161 d->lastScaleFactor = d->scaleFactor;-
162 QLineF line(p1.screenPos(), p2.screenPos());-
163 QLineF lastLine(p1.lastScreenPos(), p2.lastScreenPos());-
164 qreal newScaleFactor = line.length() / lastLine.length();-
165 if (newScaleFactor > kSingleStepScaleMax
newScaleFactor...leStepScaleMaxDescription
TRUEnever evaluated
FALSEnever evaluated
 || newScaleFactor < kSingleStepScaleMin
newScaleFactor...leStepScaleMinDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
166 return
never executed: return QGestureRecognizer::Ignore;
 QGestureRecognizer::Ignore;
never executed: return QGestureRecognizer::Ignore;
0
167 d->scaleFactor = newScaleFactor;-
168 }
never executed: end of block
0
169 d->totalScaleFactor = d->totalScaleFactor * d->scaleFactor;-
170 d->changeFlags |= QPinchGesture::ScaleFactorChanged;-
171-
172 qreal angle = QLineF(p1.screenPos(), p2.screenPos()).angle();-
173 if (angle > 180
angle > 180Description
TRUEnever evaluated
FALSEnever evaluated
)		0
174 angle -= 360;
never executed: angle -= 360;
0
175 qreal startAngle = QLineF(p1.startScreenPos(), p2.startScreenPos()).angle();-
176 if (startAngle > 180
startAngle > 180Description
TRUEnever evaluated
FALSEnever evaluated
)		0
177 startAngle -= 360;
never executed: startAngle -= 360;
0
178 const qreal rotationAngle = startAngle - angle;-
179 if (d->isNewSequence
d->isNewSequenceDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
180 d->lastRotationAngle = 0.0;
never executed: d->lastRotationAngle = 0.0;
0
181 else-
182 d->lastRotationAngle = d->rotationAngle;
never executed: d->lastRotationAngle = d->rotationAngle;
0
183 d->rotationAngle = rotationAngle;-
184 d->totalRotationAngle += d->rotationAngle - d->lastRotationAngle;-
185 d->changeFlags |= QPinchGesture::RotationAngleChanged;-
186-
187 d->totalChangeFlags |= d->changeFlags;-
188 d->isNewSequence = false;-
189 result = QGestureRecognizer::TriggerGesture;-
190 }
never executed: end of block
 else {		0
191 d->isNewSequence = true;-
192 if (q->state() == Qt::NoGesture
q->state() == Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
193 result = QGestureRecognizer::Ignore;
never executed: result = QGestureRecognizer::Ignore;
0
194 else-
195 result = QGestureRecognizer::FinishGesture;
never executed: result = QGestureRecognizer::FinishGesture;
0
196 }-
197 break;
never executed: break;
0
198 }-
199 default
never executed: default:
:
never executed: default:
0
200 break;
never executed: break;
0
201 }-
202 return
never executed: return result;
 result;
never executed: return result;
0
203}-
204-
205void QPinchGestureRecognizer::reset(QGesture *state)-
206{-
207 QPinchGesture *pinch = static_cast<QPinchGesture *>(state);-
208 QPinchGesturePrivate *d = pinch->d_func();-
209-
210 d->totalChangeFlags = d->changeFlags = 0;-
211-
212 d->startCenterPoint = d->lastCenterPoint = d->centerPoint = QPointF();-
213 d->totalScaleFactor = d->lastScaleFactor = d->scaleFactor = 1;-
214 d->totalRotationAngle = d->lastRotationAngle = d->rotationAngle = 0;-
215-
216 d->isNewSequence = true;-
217 d->startPosition[0] = d->startPosition[1] = QPointF();-
218-
219 QGestureRecognizer::reset(state);-
220}
never executed: end of block
0
221-
222-
223-
224-
225-
226QSwipeGestureRecognizer::QSwipeGestureRecognizer()-
227{-
228}-
229-
230QGesture *QSwipeGestureRecognizer::create(QObject *target)-
231{-
232 if (target
targetDescription
TRUEnever evaluated
FALSEnever evaluated
 && target->isWidgetType()
target->isWidgetType()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
233 static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents);-
234 }
never executed: end of block
0
235 return
never executed: return new QSwipeGesture;
 new QSwipeGesture;
never executed: return new QSwipeGesture;
0
236}-
237-
238QGestureRecognizer::Result QSwipeGestureRecognizer::recognize(QGesture *state,-
239 QObject *,-
240 QEvent *event)-
241{-
242 QSwipeGesture *q = static_cast<QSwipeGesture *>(state);-
243 QSwipeGesturePrivate *d = q->d_func();-
244-
245 QGestureRecognizer::Result result = QGestureRecognizer::Ignore;-
246-
247 switch (event->type()) {-
248 case
never executed: case QEvent::TouchBegin:
 QEvent::TouchBegin:
never executed: case QEvent::TouchBegin:
 {		0
249 d->velocityValue = 1;-
250 d->time.start();-
251 d->state = QSwipeGesturePrivate::Started;-
252 result = QGestureRecognizer::MayBeGesture;-
253 break;
never executed: break;
0
254 }-
255 case
never executed: case QEvent::TouchEnd:
 QEvent::TouchEnd:
never executed: case QEvent::TouchEnd:
 {		0
256 if (q->state() != Qt::NoGesture
q->state() != Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
257 result = QGestureRecognizer::FinishGesture;-
258 }
never executed: end of block
 else {		0
259 result = QGestureRecognizer::CancelGesture;-
260 }
never executed: end of block
0
261 break;
never executed: break;
0
262 }-
263 case
never executed: case QEvent::TouchUpdate:
 QEvent::TouchUpdate:
never executed: case QEvent::TouchUpdate:
 {		0
264 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
265 if (d->state == QSwipeGesturePrivate::NoGesture
d->state == QS...ate::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
266 result = QGestureRecognizer::CancelGesture;
never executed: result = QGestureRecognizer::CancelGesture;
0
267 else if (ev->touchPoints().size() == 3
ev->touchPoints().size() == 3Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
268 d->state = QSwipeGesturePrivate::ThreePointsReached;-
269 QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0);-
270 QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1);-
271 QTouchEvent::TouchPoint p3 = ev->touchPoints().at(2);-
272-
273 if (d->lastPositions[0].isNull()
d->lastPositions[0].isNull()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
274 d->lastPositions[0] = p1.startScreenPos().toPoint();-
275 d->lastPositions[1] = p2.startScreenPos().toPoint();-
276 d->lastPositions[2] = p3.startScreenPos().toPoint();-
277 }
never executed: end of block
0
278 d->hotSpot = p1.screenPos();-
279 d->isHotSpotSet = true;-
280-
281 int xDistance = (p1.screenPos().x() - d->lastPositions[0].x() +-
282 p2.screenPos().x() - d->lastPositions[1].x() +-
283 p3.screenPos().x() - d->lastPositions[2].x()) / 3;-
284 int yDistance = (p1.screenPos().y() - d->lastPositions[0].y() +-
285 p2.screenPos().y() - d->lastPositions[1].y() +-
286 p3.screenPos().y() - d->lastPositions[2].y()) / 3;-
287-
288 const int distance = xDistance >= yDistance
xDistance >= yDistanceDescription
TRUEnever evaluated
FALSEnever evaluated
 ? xDistance : yDistance;		0
289 int elapsedTime = d->time.restart();-
290 if (!elapsedTime
!elapsedTimeDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
291 elapsedTime = 1;
never executed: elapsedTime = 1;
0
292 d->velocityValue = 0.9 * d->velocityValue + (qreal) distance / elapsedTime;-
293 d->swipeAngle = QLineF(p1.startScreenPos(), p1.screenPos()).angle();-
294-
295 static const int MoveThreshold = 50;-
296 static const int directionChangeThreshold = MoveThreshold / 8;-
297 if (qAbs(xDistance) > MoveThreshold
qAbs(xDistance... MoveThresholdDescription
TRUEnever evaluated
FALSEnever evaluated
 || qAbs(yDistance) > MoveThreshold
qAbs(yDistance... MoveThresholdDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
298-
299 d->lastPositions[0] = p1.screenPos().toPoint();-
300 d->lastPositions[1] = p2.screenPos().toPoint();-
301 d->lastPositions[2] = p3.screenPos().toPoint();-
302 result = QGestureRecognizer::TriggerGesture;-
303-
304 if (d->verticalDirection == QSwipeGesture::NoDirection
d->verticalDir...e::NoDirectionDescription
TRUEnever evaluated
FALSEnever evaluated
 || qAbs(yDistance) > directionChangeThreshold
qAbs(yDistance...hangeThresholdDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
305 const QSwipeGesture::SwipeDirection vertical = yDistance > 0
yDistance > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
306 ? QSwipeGesture::Down : QSwipeGesture::Up;-
307 if (d->verticalDirection != QSwipeGesture::NoDirection
d->verticalDir...e::NoDirectionDescription
TRUEnever evaluated
FALSEnever evaluated
 && d->verticalDirection != vertical
d->verticalDir...on != verticalDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
308 result = QGestureRecognizer::CancelGesture;
never executed: result = QGestureRecognizer::CancelGesture;
0
309 d->verticalDirection = vertical;-
310 }
never executed: end of block
0
311 if (d->horizontalDirection == QSwipeGesture::NoDirection
d->horizontalD...e::NoDirectionDescription
TRUEnever evaluated
FALSEnever evaluated
 || qAbs(xDistance) > directionChangeThreshold
qAbs(xDistance...hangeThresholdDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
312 const QSwipeGesture::SwipeDirection horizontal = xDistance > 0
xDistance > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
313 ? QSwipeGesture::Right : QSwipeGesture::Left;-
314 if (d->horizontalDirection != QSwipeGesture::NoDirection
d->horizontalD...e::NoDirectionDescription
TRUEnever evaluated
FALSEnever evaluated
 && d->horizontalDirection != horizontal
d->horizontalD... != horizontalDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
315 result = QGestureRecognizer::CancelGesture;
never executed: result = QGestureRecognizer::CancelGesture;
0
316 d->horizontalDirection = horizontal;-
317 }
never executed: end of block
0
318 }
never executed: end of block
 else {		0
319 if (q->state() != Qt::NoGesture
q->state() != Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
320 result = QGestureRecognizer::TriggerGesture;
never executed: result = QGestureRecognizer::TriggerGesture;
0
321 else-
322 result = QGestureRecognizer::MayBeGesture;
never executed: result = QGestureRecognizer::MayBeGesture;
0
323 }-
324 } else if (ev->touchPoints().size() > 3
ev->touchPoints().size() > 3Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
325 result = QGestureRecognizer::CancelGesture;-
326 }
never executed: end of block
 else {		0
327 switch (d->state) {-
328 case
never executed: case QSwipeGesturePrivate::NoGesture:
 QSwipeGesturePrivate::NoGesture:
never executed: case QSwipeGesturePrivate::NoGesture:
0
329 result = QGestureRecognizer::MayBeGesture;-
330 break;
never executed: break;
0
331 case
never executed: case QSwipeGesturePrivate::Started:
 QSwipeGesturePrivate::Started:
never executed: case QSwipeGesturePrivate::Started:
0
332 result = QGestureRecognizer::Ignore;-
333 break;
never executed: break;
0
334 case
never executed: case QSwipeGesturePrivate::ThreePointsReached:
 QSwipeGesturePrivate::ThreePointsReached:
never executed: case QSwipeGesturePrivate::ThreePointsReached:
0
335 result = (
(ev->touchPoin...hPointPressed)Description
TRUEnever evaluated
FALSEnever evaluated
ev->touchPointStates() & Qt::TouchPointPressed)
(ev->touchPoin...hPointPressed)Description
TRUEnever evaluated
FALSEnever evaluated
0
336 ? QGestureRecognizer::CancelGesture : QGestureRecognizer::Ignore;-
337 break;
never executed: break;
0
338 }-
339 }
never executed: end of block
0
340 break;
never executed: break;
0
341 }-
342 default
never executed: default:
:
never executed: default:
0
343 break;
never executed: break;
0
344 }-
345 return
never executed: return result;
 result;
never executed: return result;
0
346}-
347-
348void QSwipeGestureRecognizer::reset(QGesture *state)-
349{-
350 QSwipeGesture *q = static_cast<QSwipeGesture *>(state);-
351 QSwipeGesturePrivate *d = q->d_func();-
352-
353 d->verticalDirection = d->horizontalDirection = QSwipeGesture::NoDirection;-
354 d->swipeAngle = 0;-
355-
356 d->lastPositions[0] = d->lastPositions[1] = d->lastPositions[2] = QPoint();-
357 d->state = QSwipeGesturePrivate::NoGesture;-
358 d->velocityValue = 0;-
359 d->time.invalidate();-
360-
361 QGestureRecognizer::reset(state);-
362}
never executed: end of block
0
363-
364-
365-
366-
367-
368QTapGestureRecognizer::QTapGestureRecognizer()-
369{-
370}-
371-
372QGesture *QTapGestureRecognizer::create(QObject *target)-
373{-
374 if (target
targetDescription
TRUEnever evaluated
FALSEnever evaluated
 && target->isWidgetType()
target->isWidgetType()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
375 static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents);-
376 }
never executed: end of block
0
377 return
never executed: return new QTapGesture;
 new QTapGesture;
never executed: return new QTapGesture;
0
378}-
379-
380QGestureRecognizer::Result QTapGestureRecognizer::recognize(QGesture *state,-
381 QObject *,-
382 QEvent *event)-
383{-
384 QTapGesture *q = static_cast<QTapGesture *>(state);-
385 QTapGesturePrivate *d = q->d_func();-
386-
387 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
388-
389 QGestureRecognizer::Result result = QGestureRecognizer::CancelGesture;-
390-
391 switch (event->type()) {-
392 case
never executed: case QEvent::TouchBegin:
 QEvent::TouchBegin:
never executed: case QEvent::TouchBegin:
 {		0
393 d->position = ev->touchPoints().at(0).pos();-
394 q->setHotSpot(ev->touchPoints().at(0).screenPos());-
395 result = QGestureRecognizer::TriggerGesture;-
396 break;
never executed: break;
0
397 }-
398 case
never executed: case QEvent::TouchUpdate:
 QEvent::TouchUpdate:
never executed: case QEvent::TouchUpdate:
0
399 case
never executed: case QEvent::TouchEnd:
 QEvent::TouchEnd:
never executed: case QEvent::TouchEnd:
 {		0
400 if (q->state() != Qt::NoGesture
q->state() != Qt::NoGestureDescription
TRUEnever evaluated
FALSEnever evaluated
 && ev->touchPoints().size() == 1
ev->touchPoints().size() == 1Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
401 QTouchEvent::TouchPoint p = ev->touchPoints().at(0);-
402 QPoint delta = p.pos().toPoint() - p.startPos().toPoint();-
403 enum { TapRadius = 40 };-
404 if (delta.manhattanLength() <= TapRadius
delta.manhatta...) <= TapRadiusDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
405 if (event->type() == QEvent::TouchEnd
event->type() ...vent::TouchEndDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
406 result = QGestureRecognizer::FinishGesture;
never executed: result = QGestureRecognizer::FinishGesture;
0
407 else-
408 result = QGestureRecognizer::TriggerGesture;
never executed: result = QGestureRecognizer::TriggerGesture;
0
409 }-
410 }
never executed: end of block
0
411 break;
never executed: break;
0
412 }-
413 case
never executed: case QEvent::MouseButtonPress:
 QEvent::MouseButtonPress:
never executed: case QEvent::MouseButtonPress:
0
414 case
never executed: case QEvent::MouseMove:
 QEvent::MouseMove:
never executed: case QEvent::MouseMove:
0
415 case
never executed: case QEvent::MouseButtonRelease:
 QEvent::MouseButtonRelease:
never executed: case QEvent::MouseButtonRelease:
0
416 result = QGestureRecognizer::Ignore;-
417 break;
never executed: break;
0
418 default
never executed: default:
:
never executed: default:
0
419 result = QGestureRecognizer::Ignore;-
420 break;
never executed: break;
0
421 }-
422 return
never executed: return result;
 result;
never executed: return result;
0
423}-
424-
425void QTapGestureRecognizer::reset(QGesture *state)-
426{-
427 QTapGesture *q = static_cast<QTapGesture *>(state);-
428 QTapGesturePrivate *d = q->d_func();-
429-
430 d->position = QPointF();-
431-
432 QGestureRecognizer::reset(state);-
433}
never executed: end of block
0
434-
435-
436-
437-
438-
439QTapAndHoldGestureRecognizer::QTapAndHoldGestureRecognizer()-
440{-
441}-
442-
443QGesture *QTapAndHoldGestureRecognizer::create(QObject *target)-
444{-
445 if (target
targetDescription
TRUEnever evaluated
FALSEnever evaluated
 && target->isWidgetType()
target->isWidgetType()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
446 static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents);-
447 }
never executed: end of block
0
448 return
never executed: return new QTapAndHoldGesture;
 new QTapAndHoldGesture;
never executed: return new QTapAndHoldGesture;
0
449}-
450-
451QGestureRecognizer::Result-
452QTapAndHoldGestureRecognizer::recognize(QGesture *state, QObject *object,-
453 QEvent *event)-
454{-
455 QTapAndHoldGesture *q = static_cast<QTapAndHoldGesture *>(state);-
456 QTapAndHoldGesturePrivate *d = q->d_func();-
457-
458 if (object == state
object == stateDescription
TRUEnever evaluated
FALSEnever evaluated
 && event->type() == QEvent::Timer
event->type() == QEvent::TimerDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
459 q->killTimer(d->timerId);-
460 d->timerId = 0;-
461 return
never executed: return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
 QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
never executed: return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
0
462 }-
463-
464 enum { TapRadius = 40 };-
465-
466 switch (event->type()) {-
467-
468 case
never executed: case QEvent::GraphicsSceneMousePress:
 QEvent::GraphicsSceneMousePress:
never executed: case QEvent::GraphicsSceneMousePress:
 {		0
469 const QGraphicsSceneMouseEvent *gsme = static_cast<const QGraphicsSceneMouseEvent *>(event);-
470 d->position = gsme->screenPos();-
471 q->setHotSpot(d->position);-
472 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
473 q->killTimer(d->timerId);
never executed: q->killTimer(d->timerId);
0
474 d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout);-
475 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
476 }-
477-
478 case
never executed: case QEvent::MouseButtonPress:
 QEvent::MouseButtonPress:
never executed: case QEvent::MouseButtonPress:
 {		0
479 const QMouseEvent *me = static_cast<const QMouseEvent *>(event);-
480 d->position = me->globalPos();-
481 q->setHotSpot(d->position);-
482 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
483 q->killTimer(d->timerId);
never executed: q->killTimer(d->timerId);
0
484 d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout);-
485 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
486 }-
487 case
never executed: case QEvent::TouchBegin:
 QEvent::TouchBegin:
never executed: case QEvent::TouchBegin:
 {		0
488 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
489 d->position = ev->touchPoints().at(0).startScreenPos();-
490 q->setHotSpot(d->position);-
491 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
492 q->killTimer(d->timerId);
never executed: q->killTimer(d->timerId);
0
493 d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout);-
494 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
495 }-
496-
497 case
never executed: case QEvent::GraphicsSceneMouseRelease:
 QEvent::GraphicsSceneMouseRelease:
never executed: case QEvent::GraphicsSceneMouseRelease:
0
498-
499 case
never executed: case QEvent::MouseButtonRelease:
 QEvent::MouseButtonRelease:
never executed: case QEvent::MouseButtonRelease:
0
500 case
never executed: case QEvent::TouchEnd:
 QEvent::TouchEnd:
never executed: case QEvent::TouchEnd:
0
501 return
never executed: return QGestureRecognizer::CancelGesture;
 QGestureRecognizer::CancelGesture;
never executed: return QGestureRecognizer::CancelGesture;
0
502 case
never executed: case QEvent::TouchUpdate:
 QEvent::TouchUpdate:
never executed: case QEvent::TouchUpdate:
 {		0
503 const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);-
504 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
 && ev->touchPoints().size() == 1
ev->touchPoints().size() == 1Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
505 QTouchEvent::TouchPoint p = ev->touchPoints().at(0);-
506 QPoint delta = p.pos().toPoint() - p.startPos().toPoint();-
507 if (delta.manhattanLength() <= TapRadius
delta.manhatta...) <= TapRadiusDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
508 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
509 }
never executed: end of block
0
510 return
never executed: return QGestureRecognizer::CancelGesture;
 QGestureRecognizer::CancelGesture;
never executed: return QGestureRecognizer::CancelGesture;
0
511 }-
512 case
never executed: case QEvent::MouseMove:
 QEvent::MouseMove:
never executed: case QEvent::MouseMove:
 {		0
513 const QMouseEvent *me = static_cast<const QMouseEvent *>(event);-
514 QPoint delta = me->globalPos() - d->position.toPoint();-
515 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
 && delta.manhattanLength() <= TapRadius
delta.manhatta...) <= TapRadiusDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
516 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
517 return
never executed: return QGestureRecognizer::CancelGesture;
 QGestureRecognizer::CancelGesture;
never executed: return QGestureRecognizer::CancelGesture;
0
518 }-
519-
520 case
never executed: case QEvent::GraphicsSceneMouseMove:
 QEvent::GraphicsSceneMouseMove:
never executed: case QEvent::GraphicsSceneMouseMove:
 {		0
521 const QGraphicsSceneMouseEvent *gsme = static_cast<const QGraphicsSceneMouseEvent *>(event);-
522 QPoint delta = gsme->screenPos() - d->position.toPoint();-
523 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
 && delta.manhattanLength() <= TapRadius
delta.manhatta...) <= TapRadiusDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
524 return
never executed: return QGestureRecognizer::MayBeGesture;
 QGestureRecognizer::MayBeGesture;
never executed: return QGestureRecognizer::MayBeGesture;
0
525 return
never executed: return QGestureRecognizer::CancelGesture;
 QGestureRecognizer::CancelGesture;
never executed: return QGestureRecognizer::CancelGesture;
0
526 }-
527-
528 default
never executed: default:
:
never executed: default:
0
529 return
never executed: return QGestureRecognizer::Ignore;
 QGestureRecognizer::Ignore;
never executed: return QGestureRecognizer::Ignore;
0
530 }-
531}-
532-
533void QTapAndHoldGestureRecognizer::reset(QGesture *state)-
534{-
535 QTapAndHoldGesture *q = static_cast<QTapAndHoldGesture *>(state);-
536 QTapAndHoldGesturePrivate *d = q->d_func();-
537-
538 d->position = QPointF();-
539 if (d->timerId
d->timerIdDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
540 q->killTimer(d->timerId);
never executed: q->killTimer(d->timerId);
0
541 d->timerId = 0;-
542-
543 QGestureRecognizer::reset(state);-
544}
never executed: end of block
0
545-
546-
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