kernel/qdnd.cpp

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3** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -
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6** This file is part of the QtGui module of the Qt Toolkit. -
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29** GNU General Public License Usage -
30** Alternatively, this file may be used under the terms of the GNU -
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35** met: http://www.gnu.org/copyleft/gpl.html. -
36** -
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38** $QT_END_LICENSE$ -
39** -
40****************************************************************************/ -
41 -
42#include "qplatformdefs.h" -
43 -
44#include "qbitmap.h" -
45#include "qdrag.h" -
46#include "qpixmap.h" -
47#include "qevent.h" -
48#include "qfile.h" -
49#include "qtextcodec.h" -
50#include "qguiapplication.h" -
51#include "qpoint.h" -
52#include "qbuffer.h" -
53#include "qimage.h" -
54#include "qpainter.h" -
55#include "qregexp.h" -
56#include "qdir.h" -
57#include "qdnd_p.h" -
58#include "qimagereader.h" -
59#include "qimagewriter.h" -
60#include "qdebug.h" -
61#include <ctype.h> -
62#include <qpa/qplatformintegration.h> -
63#include <qpa/qplatformdrag.h> -
64 -
65#include <private/qguiapplication_p.h> -
66 -
67#ifndef QT_NO_DRAGANDDROP -
68 -
69QT_BEGIN_NAMESPACE -
70 -
71// the universe's only drag manager -
72QDragManager *QDragManager::m_instance = 0; -
73 -
74 -
75QDragManager::QDragManager() -
76 : QObject(qApp), m_platformDropData(0), m_currentDropTarget(0), -
77 m_platformDrag(QGuiApplicationPrivate::platformIntegration()->drag()), -
78 m_object(0) -
79{ -
80 Q_ASSERT(!m_instance);
executed (the execution status of this line is deduced): qt_noop();
-
81 -
82 if (m_platformDrag)
partially evaluated: m_platformDrag
TRUEFALSE
yes
Evaluation Count:5
no
Evaluation Count:0
0-5
83 m_platformDropData = m_platformDrag->platformDropData();
executed: m_platformDropData = m_platformDrag->platformDropData();
Execution Count:5
5
84}
executed: }
Execution Count:5
5
85 -
86 -
87QDragManager::~QDragManager() -
88{ -
89 m_instance = 0;
executed (the execution status of this line is deduced): m_instance = 0;
-
90}
executed: }
Execution Count:5
5
91 -
92QDragManager *QDragManager::self() -
93{ -
94 if (!m_instance && !QGuiApplication::closingDown())
evaluated: !m_instance
TRUEFALSE
yes
Evaluation Count:213
yes
Evaluation Count:78
evaluated: !QGuiApplication::closingDown()
TRUEFALSE
yes
Evaluation Count:5
yes
Evaluation Count:208
5-213
95 m_instance = new QDragManager;
executed: m_instance = new QDragManager;
Execution Count:5
5
96 return m_instance;
executed: return m_instance;
Execution Count:291
291
97} -
98 -
99QObject *QDragManager::source() const -
100{ -
101 if (m_object)
never evaluated: m_object
0
102 return m_object->source();
never executed: return m_object->source();
0
103 return 0;
never executed: return 0;
0
104} -
105 -
106void QDragManager::setCurrentTarget(QObject *target, bool dropped) -
107{ -
108 if (m_currentDropTarget == target)
partially evaluated: m_currentDropTarget == target
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:6
0-6
109 return;
never executed: return;
0
110 -
111 m_currentDropTarget = target;
executed (the execution status of this line is deduced): m_currentDropTarget = target;
-
112 if (!dropped && m_object) {
evaluated: !dropped
TRUEFALSE
yes
Evaluation Count:4
yes
Evaluation Count:2
partially evaluated: m_object
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
113 m_object->d_func()->target = target;
never executed (the execution status of this line is deduced): m_object->d_func()->target = target;
-
114 emit m_object->targetChanged(target);
never executed (the execution status of this line is deduced): m_object->targetChanged(target);
-
115 }
never executed: }
0
116}
executed: }
Execution Count:6
6
117 -
118QObject *QDragManager::currentTarget() const -
119{ -
120 return m_currentDropTarget;
executed: return m_currentDropTarget;
Execution Count:8
8
121} -
122 -
123Qt::DropAction QDragManager::drag(QDrag *o) -
124{ -
125 if (!o || m_object == o)
never evaluated: !o
never evaluated: m_object == o
0
126 return Qt::IgnoreAction;
never executed: return Qt::IgnoreAction;
0
127 -
128 if (!m_platformDrag || !o->source()) {
never evaluated: !m_platformDrag
never evaluated: !o->source()
0
129 o->deleteLater();
never executed (the execution status of this line is deduced): o->deleteLater();
-
130 return Qt::IgnoreAction;
never executed: return Qt::IgnoreAction;
0
131 } -
132 -
133 if (m_object) {
never evaluated: m_object
0
134 qWarning("QDragManager::drag in possibly invalid state");
never executed (the execution status of this line is deduced): QMessageLogger("kernel/qdnd.cpp", 134, __PRETTY_FUNCTION__).warning("QDragManager::drag in possibly invalid state");
-
135 return Qt::IgnoreAction;
never executed: return Qt::IgnoreAction;
0
136 } -
137 -
138 m_object = o;
never executed (the execution status of this line is deduced): m_object = o;
-
139 -
140 m_object->d_func()->target = 0;
never executed (the execution status of this line is deduced): m_object->d_func()->target = 0;
-
141 -
142 QGuiApplicationPrivate::instance()->notifyDragStarted(o);
never executed (the execution status of this line is deduced): QGuiApplicationPrivate::instance()->notifyDragStarted(o);
-
143 const Qt::DropAction result = m_platformDrag->drag(m_object);
never executed (the execution status of this line is deduced): const Qt::DropAction result = m_platformDrag->drag(m_object);
-
144 m_object = 0;
never executed (the execution status of this line is deduced): m_object = 0;
-
145 return result;
never executed: return result;
0
146} -
147 -
148#endif // QT_NO_DRAGANDDROP -
149 -
150#if !(defined(QT_NO_DRAGANDDROP) && defined(QT_NO_CLIPBOARD)) -
151 -
152static QStringList imageReadMimeFormats() -
153{ -
154 QStringList formats;
executed (the execution status of this line is deduced): QStringList formats;
-
155 QList<QByteArray> imageFormats = QImageReader::supportedImageFormats();
executed (the execution status of this line is deduced): QList<QByteArray> imageFormats = QImageReader::supportedImageFormats();
-
156 for (int i = 0; i < imageFormats.size(); ++i) {
evaluated: i < imageFormats.size()
TRUEFALSE
yes
Evaluation Count:154
yes
Evaluation Count:14
14-154
157 QString format = QLatin1String("image/");
executed (the execution status of this line is deduced): QString format = QLatin1String("image/");
-
158 format += QString::fromLatin1(imageFormats.at(i).toLower());
executed (the execution status of this line is deduced): format += QString::fromLatin1(imageFormats.at(i).toLower());
-
159 formats.append(format);
executed (the execution status of this line is deduced): formats.append(format);
-
160 }
executed: }
Execution Count:154
154
161 -
162 //put png at the front because it is best -
163 int pngIndex = formats.indexOf(QLatin1String("image/png"));
executed (the execution status of this line is deduced): int pngIndex = formats.indexOf(QLatin1String("image/png"));
-
164 if (pngIndex != -1 && pngIndex != 0)
partially evaluated: pngIndex != -1
TRUEFALSE
yes
Evaluation Count:14
no
Evaluation Count:0
partially evaluated: pngIndex != 0
TRUEFALSE
yes
Evaluation Count:14
no
Evaluation Count:0
0-14
165 formats.move(pngIndex, 0);
executed: formats.move(pngIndex, 0);
Execution Count:14
14
166 -
167 return formats;
executed: return formats;
Execution Count:14
14
168} -
169 -
170 -
171static QStringList imageWriteMimeFormats() -
172{ -
173 QStringList formats;
never executed (the execution status of this line is deduced): QStringList formats;
-
174 QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats();
never executed (the execution status of this line is deduced): QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats();
-
175 for (int i = 0; i < imageFormats.size(); ++i) {
never evaluated: i < imageFormats.size()
0
176 QString format = QLatin1String("image/");
never executed (the execution status of this line is deduced): QString format = QLatin1String("image/");
-
177 format += QString::fromLatin1(imageFormats.at(i).toLower());
never executed (the execution status of this line is deduced): format += QString::fromLatin1(imageFormats.at(i).toLower());
-
178 formats.append(format);
never executed (the execution status of this line is deduced): formats.append(format);
-
179 }
never executed: }
0
180 -
181 //put png at the front because it is best -
182 int pngIndex = formats.indexOf(QLatin1String("image/png"));
never executed (the execution status of this line is deduced): int pngIndex = formats.indexOf(QLatin1String("image/png"));
-
183 if (pngIndex != -1 && pngIndex != 0)
never evaluated: pngIndex != -1
never evaluated: pngIndex != 0
0
184 formats.move(pngIndex, 0);
never executed: formats.move(pngIndex, 0);
0
185 -
186 return formats;
never executed: return formats;
0
187} -
188 -
189QInternalMimeData::QInternalMimeData() -
190 : QMimeData() -
191{ -
192}
executed: }
Execution Count:292
292
193 -
194QInternalMimeData::~QInternalMimeData() -
195{ -
196} -
197 -
198bool QInternalMimeData::hasFormat(const QString &mimeType) const -
199{ -
200 bool foundFormat = hasFormat_sys(mimeType);
executed (the execution status of this line is deduced): bool foundFormat = hasFormat_sys(mimeType);
-
201 if (!foundFormat && mimeType == QLatin1String("application/x-qt-image")) {
partially evaluated: !foundFormat
TRUEFALSE
yes
Evaluation Count:14
no
Evaluation Count:0
partially evaluated: mimeType == QLatin1String("application/x-qt-image")
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:14
0-14
202 QStringList imageFormats = imageReadMimeFormats();
never executed (the execution status of this line is deduced): QStringList imageFormats = imageReadMimeFormats();
-
203 for (int i = 0; i < imageFormats.size(); ++i) {
never evaluated: i < imageFormats.size()
0
204 if ((foundFormat = hasFormat_sys(imageFormats.at(i))))
never evaluated: (foundFormat = hasFormat_sys(imageFormats.at(i)))
0
205 break;
never executed: break;
0
206 }
never executed: }
0
207 }
never executed: }
0
208 return foundFormat;
executed: return foundFormat;
Execution Count:14
14
209} -
210 -
211QStringList QInternalMimeData::formats() const -
212{ -
213 QStringList realFormats = formats_sys();
executed (the execution status of this line is deduced): QStringList realFormats = formats_sys();
-
214 if (!realFormats.contains(QLatin1String("application/x-qt-image"))) {
partially evaluated: !realFormats.contains(QLatin1String("application/x-qt-image"))
TRUEFALSE
yes
Evaluation Count:14
no
Evaluation Count:0
0-14
215 QStringList imageFormats = imageReadMimeFormats();
executed (the execution status of this line is deduced): QStringList imageFormats = imageReadMimeFormats();
-
216 for (int i = 0; i < imageFormats.size(); ++i) {
evaluated: i < imageFormats.size()
TRUEFALSE
yes
Evaluation Count:154
yes
Evaluation Count:14
14-154
217 if (realFormats.contains(imageFormats.at(i))) {
partially evaluated: realFormats.contains(imageFormats.at(i))
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:154
0-154
218 realFormats += QLatin1String("application/x-qt-image");
never executed (the execution status of this line is deduced): realFormats += QLatin1String("application/x-qt-image");
-
219 break;
never executed: break;
0
220 } -
221 }
executed: }
Execution Count:154
154
222 }
executed: }
Execution Count:14
14
223 return realFormats;
executed: return realFormats;
Execution Count:14
14
224} -
225 -
226QVariant QInternalMimeData::retrieveData(const QString &mimeType, QVariant::Type type) const -
227{ -
228 QVariant data = retrieveData_sys(mimeType, type);
executed (the execution status of this line is deduced): QVariant data = retrieveData_sys(mimeType, type);
-
229 if (mimeType == QLatin1String("application/x-qt-image")) {
partially evaluated: mimeType == QLatin1String("application/x-qt-image")
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
230 if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty())) {
never evaluated: data.isNull()
never evaluated: data.type() == QVariant::ByteArray
never evaluated: data.toByteArray().isEmpty()
0
231 // try to find an image -
232 QStringList imageFormats = imageReadMimeFormats();
never executed (the execution status of this line is deduced): QStringList imageFormats = imageReadMimeFormats();
-
233 for (int i = 0; i < imageFormats.size(); ++i) {
never evaluated: i < imageFormats.size()
0
234 data = retrieveData_sys(imageFormats.at(i), type);
never executed (the execution status of this line is deduced): data = retrieveData_sys(imageFormats.at(i), type);
-
235 if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty()))
never evaluated: data.isNull()
never evaluated: data.type() == QVariant::ByteArray
never evaluated: data.toByteArray().isEmpty()
0
236 continue;
never executed: continue;
0
237 break;
never executed: break;
0
238 } -
239 }
never executed: }
0
240 // we wanted some image type, but all we got was a byte array. Convert it to an image. -
241 if (data.type() == QVariant::ByteArray
never evaluated: data.type() == QVariant::ByteArray
0
242 && (type == QVariant::Image || type == QVariant::Pixmap || type == QVariant::Bitmap))
never evaluated: type == QVariant::Image
never evaluated: type == QVariant::Pixmap
never evaluated: type == QVariant::Bitmap
0
243 data = QImage::fromData(data.toByteArray());
never executed: data = QImage::fromData(data.toByteArray());
0
244 -
245 } else if (mimeType == QLatin1String("application/x-color") && data.type() == QVariant::ByteArray) {
never executed: }
partially evaluated: mimeType == QLatin1String("application/x-color")
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
never evaluated: data.type() == QVariant::ByteArray
0-4
246 QColor c;
never executed (the execution status of this line is deduced): QColor c;
-
247 QByteArray ba = data.toByteArray();
never executed (the execution status of this line is deduced): QByteArray ba = data.toByteArray();
-
248 if (ba.size() == 8) {
never evaluated: ba.size() == 8
0
249 ushort * colBuf = (ushort *)ba.data();
never executed (the execution status of this line is deduced): ushort * colBuf = (ushort *)ba.data();
-
250 c.setRgbF(qreal(colBuf[0]) / qreal(0xFFFF),
never executed (the execution status of this line is deduced): c.setRgbF(qreal(colBuf[0]) / qreal(0xFFFF),
-
251 qreal(colBuf[1]) / qreal(0xFFFF),
never executed (the execution status of this line is deduced): qreal(colBuf[1]) / qreal(0xFFFF),
-
252 qreal(colBuf[2]) / qreal(0xFFFF),
never executed (the execution status of this line is deduced): qreal(colBuf[2]) / qreal(0xFFFF),
-
253 qreal(colBuf[3]) / qreal(0xFFFF));
never executed (the execution status of this line is deduced): qreal(colBuf[3]) / qreal(0xFFFF));
-
254 data = c;
never executed (the execution status of this line is deduced): data = c;
-
255 } else {
never executed: }
0
256 qWarning("Qt: Invalid color format");
never executed (the execution status of this line is deduced): QMessageLogger("kernel/qdnd.cpp", 256, __PRETTY_FUNCTION__).warning("Qt: Invalid color format");
-
257 }
never executed: }
0
258 } else if (data.type() != type && data.type() == QVariant::ByteArray) {
partially evaluated: data.type() != type
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
partially evaluated: data.type() == QVariant::ByteArray
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
0-4
259 // try to use mime data's internal conversion stuf. -
260 QInternalMimeData *that = const_cast<QInternalMimeData *>(this);
executed (the execution status of this line is deduced): QInternalMimeData *that = const_cast<QInternalMimeData *>(this);
-
261 that->setData(mimeType, data.toByteArray());
executed (the execution status of this line is deduced): that->setData(mimeType, data.toByteArray());
-
262 data = QMimeData::retrieveData(mimeType, type);
executed (the execution status of this line is deduced): data = QMimeData::retrieveData(mimeType, type);
-
263 that->clear();
executed (the execution status of this line is deduced): that->clear();
-
264 }
executed: }
Execution Count:4
4
265 return data;
executed: return data;
Execution Count:4
4
266} -
267 -
268bool QInternalMimeData::canReadData(const QString &mimeType) -
269{ -
270 return imageReadMimeFormats().contains(mimeType);
never executed: return imageReadMimeFormats().contains(mimeType);
0
271} -
272 -
273// helper functions for rendering mimedata to the system, this is needed because QMimeData is in core. -
274QStringList QInternalMimeData::formatsHelper(const QMimeData *data) -
275{ -
276 QStringList realFormats = data->formats();
never executed (the execution status of this line is deduced): QStringList realFormats = data->formats();
-
277 if (realFormats.contains(QLatin1String("application/x-qt-image"))) {
never evaluated: realFormats.contains(QLatin1String("application/x-qt-image"))
0
278 // add all supported image formats -
279 QStringList imageFormats = imageWriteMimeFormats();
never executed (the execution status of this line is deduced): QStringList imageFormats = imageWriteMimeFormats();
-
280 for (int i = 0; i < imageFormats.size(); ++i) {
never evaluated: i < imageFormats.size()
0
281 if (!realFormats.contains(imageFormats.at(i)))
never evaluated: !realFormats.contains(imageFormats.at(i))
0
282 realFormats.append(imageFormats.at(i));
never executed: realFormats.append(imageFormats.at(i));
0
283 }
never executed: }
0
284 }
never executed: }
0
285 return realFormats;
never executed: return realFormats;
0
286} -
287 -
288bool QInternalMimeData::hasFormatHelper(const QString &mimeType, const QMimeData *data) -
289{ -
290 -
291 bool foundFormat = data->hasFormat(mimeType);
executed (the execution status of this line is deduced): bool foundFormat = data->hasFormat(mimeType);
-
292 if (!foundFormat) {
partially evaluated: !foundFormat
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:8
0-8
293 if (mimeType == QLatin1String("application/x-qt-image")) {
never evaluated: mimeType == QLatin1String("application/x-qt-image")
0
294 // check all supported image formats -
295 QStringList imageFormats = imageWriteMimeFormats();
never executed (the execution status of this line is deduced): QStringList imageFormats = imageWriteMimeFormats();
-
296 for (int i = 0; i < imageFormats.size(); ++i) {
never evaluated: i < imageFormats.size()
0
297 if ((foundFormat = data->hasFormat(imageFormats.at(i))))
never evaluated: (foundFormat = data->hasFormat(imageFormats.at(i)))
0
298 break;
never executed: break;
0
299 }
never executed: }
0
300 } else if (mimeType.startsWith(QLatin1String("image/"))) {
never executed: }
never evaluated: mimeType.startsWith(QLatin1String("image/"))
0
301 return data->hasImage() && imageWriteMimeFormats().contains(mimeType);
never executed: return data->hasImage() && imageWriteMimeFormats().contains(mimeType);
0
302 } -
303 } -
304 return foundFormat;
executed: return foundFormat;
Execution Count:8
8
305} -
306 -
307QByteArray QInternalMimeData::renderDataHelper(const QString &mimeType, const QMimeData *data) -
308{ -
309 QByteArray ba;
executed (the execution status of this line is deduced): QByteArray ba;
-
310 if (mimeType == QLatin1String("application/x-color")) {
partially evaluated: mimeType == QLatin1String("application/x-color")
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:8
0-8
311 /* QMimeData can only provide colors as QColor or the name -
312 of a color as a QByteArray or a QString. So we need to do -
313 the conversion to application/x-color here. -
314 The application/x-color format is : -
315 type: application/x-color -
316 format: 16 -
317 data[0]: red -
318 data[1]: green -
319 data[2]: blue -
320 data[3]: opacity -
321 */ -
322 ba.resize(8);
never executed (the execution status of this line is deduced): ba.resize(8);
-
323 ushort * colBuf = (ushort *)ba.data();
never executed (the execution status of this line is deduced): ushort * colBuf = (ushort *)ba.data();
-
324 QColor c = qvariant_cast<QColor>(data->colorData());
never executed (the execution status of this line is deduced): QColor c = qvariant_cast<QColor>(data->colorData());
-
325 colBuf[0] = ushort(c.redF() * 0xFFFF);
never executed (the execution status of this line is deduced): colBuf[0] = ushort(c.redF() * 0xFFFF);
-
326 colBuf[1] = ushort(c.greenF() * 0xFFFF);
never executed (the execution status of this line is deduced): colBuf[1] = ushort(c.greenF() * 0xFFFF);
-
327 colBuf[2] = ushort(c.blueF() * 0xFFFF);
never executed (the execution status of this line is deduced): colBuf[2] = ushort(c.blueF() * 0xFFFF);
-
328 colBuf[3] = ushort(c.alphaF() * 0xFFFF);
never executed (the execution status of this line is deduced): colBuf[3] = ushort(c.alphaF() * 0xFFFF);
-
329 } else {
never executed: }
0
330 ba = data->data(mimeType);
executed (the execution status of this line is deduced): ba = data->data(mimeType);
-
331 if (ba.isEmpty()) {
evaluated: ba.isEmpty()
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:7
1-7
332 if (mimeType == QLatin1String("application/x-qt-image") && data->hasImage()) {
partially evaluated: mimeType == QLatin1String("application/x-qt-image")
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
never evaluated: data->hasImage()
0-1
333 QImage image = qvariant_cast<QImage>(data->imageData());
never executed (the execution status of this line is deduced): QImage image = qvariant_cast<QImage>(data->imageData());
-
334 QBuffer buf(&ba);
never executed (the execution status of this line is deduced): QBuffer buf(&ba);
-
335 buf.open(QBuffer::WriteOnly);
never executed (the execution status of this line is deduced): buf.open(QBuffer::WriteOnly);
-
336 // would there not be PNG ?? -
337 image.save(&buf, "PNG");
never executed (the execution status of this line is deduced): image.save(&buf, "PNG");
-
338 } else if (mimeType.startsWith(QLatin1String("image/")) && data->hasImage()) {
never executed: }
partially evaluated: mimeType.startsWith(QLatin1String("image/"))
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
never evaluated: data->hasImage()
0-1
339 QImage image = qvariant_cast<QImage>(data->imageData());
never executed (the execution status of this line is deduced): QImage image = qvariant_cast<QImage>(data->imageData());
-
340 QBuffer buf(&ba);
never executed (the execution status of this line is deduced): QBuffer buf(&ba);
-
341 buf.open(QBuffer::WriteOnly);
never executed (the execution status of this line is deduced): buf.open(QBuffer::WriteOnly);
-
342 image.save(&buf, mimeType.mid(mimeType.indexOf(QLatin1Char('/')) + 1).toLatin1().toUpper());
never executed (the execution status of this line is deduced): image.save(&buf, mimeType.mid(mimeType.indexOf(QLatin1Char('/')) + 1).toLatin1().toUpper());
-
343 }
never executed: }
0
344 } -
345 }
executed: }
Execution Count:8
8
346 return ba;
executed: return ba;
Execution Count:8
8
347} -
348 -
349#endif // QT_NO_DRAGANDDROP && QT_NO_CLIPBOARD -
350 -
351QT_END_NAMESPACE -
352 -
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