qsimpledrag.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/gui/kernel/qsimpledrag.cpp
Switch to Source codePreprocessed file
LineSourceCount
1-
2-
3-
4-
5-
6-
7-
8-
9-
10static QWindow* topLevelAt(const QPoint &pos)-
11{-
12 QWindowList list = QGuiApplication::topLevelWindows();-
13 for (int i = list.count()-1; i >= 0
i >= 0Description
TRUEnever evaluated
FALSEnever evaluated
; --i) {		0
14 QWindow *w = list.at(i);-
15 if (w->isVisible()
w->isVisible()Description
TRUEnever evaluated
FALSEnever evaluated
 && w->geometry().contains(pos)
w->geometry().contains(pos)Description
TRUEnever evaluated
FALSEnever evaluated
 && !qobject_cast<QShapedPixmapWindow*>(w)
!qobject_cast<...mapWindow*>(w)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
16 return
never executed: return w;
 w;
never executed: return w;
0
17 }
never executed: end of block
0
18 return
never executed: return 0;
 0;
never executed: return 0;
0
19}-
20QBasicDrag::QBasicDrag() :-
21 m_restoreCursor(false), m_eventLoop(0),-
22 m_executed_drop_action(Qt::IgnoreAction), m_can_drop(false),-
23 m_drag(0), m_drag_icon_window(0), m_useCompositing(true),-
24 m_screen(nullptr)-
25{-
26}
never executed: end of block
0
27-
28QBasicDrag::~QBasicDrag()-
29{-
30 delete m_drag_icon_window;-
31}
never executed: end of block
0
32-
33void QBasicDrag::enableEventFilter()-
34{-
35 (static_cast<QGuiApplication *>(QCoreApplication::instance()))->installEventFilter(this);-
36}
never executed: end of block
0
37-
38void QBasicDrag::disableEventFilter()-
39{-
40 (static_cast<QGuiApplication *>(QCoreApplication::instance()))->removeEventFilter(this);-
41}
never executed: end of block
0
42-
43-
44static inline QPoint getNativeMousePos(QEvent *e, QObject *o)-
45{-
46 return
never executed: return QHighDpi::toNativePixels(static_cast<QMouseEvent *>(e)->globalPos(), qobject_cast<QWindow*>(o));
 QHighDpi::toNativePixels(static_cast<QMouseEvent *>(e)->globalPos(), qobject_cast<QWindow*>(o));
never executed: return QHighDpi::toNativePixels(static_cast<QMouseEvent *>(e)->globalPos(), qobject_cast<QWindow*>(o));
0
47}-
48-
49bool QBasicDrag::eventFilter(QObject *o, QEvent *e)-
50{-
51 (void)o;;-
52-
53 if (!m_drag
!m_dragDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
54 if (e->type() == QEvent::KeyRelease
e->type() == Q...nt::KeyReleaseDescription
TRUEnever evaluated
FALSEnever evaluated
 && static_cast<
static_cast<QK...Qt::Key_EscapeDescription
TRUEnever evaluated
FALSEnever evaluated
QKeyEvent*>(e)->key() == Qt::Key_Escape
static_cast<QK...Qt::Key_EscapeDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
55 disableEventFilter();-
56 exitDndEventLoop();-
57 return
never executed: return true;
 true;
never executed: return true;
0
58 }-
59 return
never executed: return false;
 false;
never executed: return false;
0
60 }-
61-
62 switch (e->type()) {-
63 case
never executed: case QEvent::ShortcutOverride:
 QEvent::ShortcutOverride:
never executed: case QEvent::ShortcutOverride:
0
64-
65 e->accept();-
66 return
never executed: return true;
 true;
never executed: return true;
0
67-
68 case
never executed: case QEvent::KeyPress:
 QEvent::KeyPress:
never executed: case QEvent::KeyPress:
0
69 case
never executed: case QEvent::KeyRelease:
 QEvent::KeyRelease:
never executed: case QEvent::KeyRelease:
0
70 {-
71 QKeyEvent *ke = static_cast<QKeyEvent *>(e);-
72 if (ke->key() == Qt::Key_Escape
ke->key() == Qt::Key_EscapeDescription
TRUEnever evaluated
FALSEnever evaluated
 && e->type() == QEvent::KeyPress
e->type() == QEvent::KeyPressDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
73 cancel();-
74 disableEventFilter();-
75 exitDndEventLoop();-
76-
77 }
never executed: end of block
0
78 return
never executed: return true;
 true;
never executed: return true;
0
79 }-
80-
81 case
never executed: case QEvent::MouseMove:
 QEvent::MouseMove:
never executed: case QEvent::MouseMove:
0
82 {-
83 QPoint nativePosition = getNativeMousePos(e, o);-
84 move(nativePosition);-
85 return
never executed: return true;
 true;
never executed: return true;
0
86 }-
87 case
never executed: case QEvent::MouseButtonRelease:
 QEvent::MouseButtonRelease:
never executed: case QEvent::MouseButtonRelease:
0
88 disableEventFilter();-
89 if (canDrop()
canDrop()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
90 QPoint nativePosition = getNativeMousePos(e, o);-
91 drop(nativePosition);-
92 }
never executed: end of block
 else {		0
93 cancel();-
94 }
never executed: end of block
0
95 exitDndEventLoop();-
96 QCoreApplication::postEvent(o, new QMouseEvent(*static_cast<QMouseEvent *>(e)));-
97 return
never executed: return true;
 true;
never executed: return true;
0
98 case
never executed: case QEvent::MouseButtonDblClick:
 QEvent::MouseButtonDblClick:
never executed: case QEvent::MouseButtonDblClick:
0
99 case
never executed: case QEvent::Wheel:
 QEvent::Wheel:
never executed: case QEvent::Wheel:
0
100 return
never executed: return true;
 true;
never executed: return true;
0
101 default
never executed: default:
:
never executed: default:
0
102 break;
never executed: break;
0
103 }-
104 return
never executed: return false;
 false;
never executed: return false;
0
105}-
106-
107Qt::DropAction QBasicDrag::drag(QDrag *o)-
108{-
109 m_drag = o;-
110 m_executed_drop_action = Qt::IgnoreAction;-
111 m_can_drop = false;-
112 m_restoreCursor = true;-
113-
114 (static_cast<QGuiApplication *>(QCoreApplication::instance()))->setOverrideCursor(Qt::DragCopyCursor);-
115 updateCursor(m_executed_drop_action);-
116-
117 startDrag();-
118 m_eventLoop = new QEventLoop;-
119 m_eventLoop->exec();-
120 delete m_eventLoop;-
121 m_eventLoop = 0;-
122 m_drag = 0;-
123 endDrag();-
124 return
never executed: return m_executed_drop_action;
 m_executed_drop_action;
never executed: return m_executed_drop_action;
0
125}-
126-
127void QBasicDrag::restoreCursor()-
128{-
129 if (m_restoreCursor
m_restoreCursorDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
130-
131 QGuiApplication::restoreOverrideCursor();-
132-
133 m_restoreCursor = false;-
134 }
never executed: end of block
0
135}
never executed: end of block
0
136-
137void QBasicDrag::startDrag()-
138{-
139 QPoint pos;-
140-
141 pos = QCursor::pos();-
142 if (pos.x() == int(qInf())
pos.x() == int(qInf())Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
143-
144 pos = QPoint();-
145 }
never executed: end of block
0
146-
147 recreateShapedPixmapWindow(m_screen, pos);-
148 enableEventFilter();-
149}
never executed: end of block
0
150-
151void QBasicDrag::endDrag()-
152{-
153}-
154-
155void QBasicDrag::recreateShapedPixmapWindow(QScreen *screen, const QPoint &pos)-
156{-
157 delete m_drag_icon_window;-
158-
159-
160 m_drag_icon_window = new QShapedPixmapWindow(screen);-
161-
162 m_drag_icon_window->setUseCompositing(m_useCompositing);-
163 m_drag_icon_window->setPixmap(m_drag->pixmap());-
164 m_drag_icon_window->setHotspot(m_drag->hotSpot());-
165 m_drag_icon_window->updateGeometry(pos);-
166 m_drag_icon_window->setVisible(true);-
167}
never executed: end of block
0
168-
169void QBasicDrag::cancel()-
170{-
171 disableEventFilter();-
172 restoreCursor();-
173 m_drag_icon_window->setVisible(false);-
174}
never executed: end of block
0
175-
176-
177-
178-
179-
180-
181void QBasicDrag::moveShapedPixmapWindow(const QPoint &globalPos)-
182{-
183 if (m_drag
m_dragDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
184 m_drag_icon_window->updateGeometry(globalPos);
never executed: m_drag_icon_window->updateGeometry(globalPos);
0
185}
never executed: end of block
0
186-
187void QBasicDrag::drop(const QPoint &)-
188{-
189 disableEventFilter();-
190 restoreCursor();-
191 m_drag_icon_window->setVisible(false);-
192}
never executed: end of block
0
193-
194void QBasicDrag::exitDndEventLoop()-
195{-
196 if (m_eventLoop
m_eventLoopDescription
TRUEnever evaluated
FALSEnever evaluated
 && m_eventLoop->isRunning()
m_eventLoop->isRunning()Description
TRUEnever evaluated
FALSEnever evaluated
)		0
197 m_eventLoop->exit();
never executed: m_eventLoop->exit();
0
198}
never executed: end of block
0
199-
200void QBasicDrag::updateCursor(Qt::DropAction action)-
201{-
202-
203 Qt::CursorShape cursorShape = Qt::ForbiddenCursor;-
204 if (canDrop()
canDrop()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
205 switch (action) {-
206 case
never executed: case Qt::CopyAction:
 Qt::CopyAction:
never executed: case Qt::CopyAction:
0
207 cursorShape = Qt::DragCopyCursor;-
208 break;
never executed: break;
0
209 case
never executed: case Qt::LinkAction:
 Qt::LinkAction:
never executed: case Qt::LinkAction:
0
210 cursorShape = Qt::DragLinkCursor;-
211 break;
never executed: break;
0
212 default
never executed: default:
:
never executed: default:
0
213 cursorShape = Qt::DragMoveCursor;-
214 break;
never executed: break;
0
215 }-
216 }-
217-
218 QCursor *cursor = QGuiApplication::overrideCursor();-
219 QPixmap pixmap = m_drag->dragCursor(action);-
220 if (!cursor
!cursorDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
221 QGuiApplication::changeOverrideCursor((pixmap.isNull()) ? QCursor(cursorShape) : QCursor(pixmap));-
222 }
never executed: end of block
 else {		0
223 if (!pixmap.isNull()
!pixmap.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
224 if ((
(cursor->pixma...ap.cacheKey())Description
TRUEnever evaluated
FALSEnever evaluated
cursor->pixmap().cacheKey() != pixmap.cacheKey())
(cursor->pixma...ap.cacheKey())Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
225 QGuiApplication::changeOverrideCursor(QCursor(pixmap));-
226 }
never executed: end of block
0
227 }
never executed: end of block
 else {		0
228 if (cursorShape != cursor->shape()
cursorShape != cursor->shape()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
229 QGuiApplication::changeOverrideCursor(QCursor(cursorShape));-
230 }
never executed: end of block
0
231 }
never executed: end of block
0
232 }-
233-
234 updateAction(action);-
235}
never executed: end of block
0
236QSimpleDrag::QSimpleDrag() : m_current_window(0)-
237{-
238}
never executed: end of block
0
239-
240QMimeData *QSimpleDrag::platformDropData()-
241{-
242 if (drag()
drag()Description
TRUEnever evaluated
FALSEnever evaluated
)		0
243 return
never executed: return drag()->mimeData();
 drag()->mimeData();
never executed: return drag()->mimeData();
0
244 return
never executed: return 0;
 0;
never executed: return 0;
0
245}-
246-
247void QSimpleDrag::startDrag()-
248{-
249 QBasicDrag::startDrag();-
250 m_current_window = topLevelAt(QCursor::pos());-
251 if (m_current_window
m_current_windowDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
252 QPlatformDragQtResponse response = QWindowSystemInterface::handleDrag(m_current_window, drag()->mimeData(), QCursor::pos(), drag()->supportedActions());-
253 setCanDrop(response.isAccepted());-
254 updateCursor(response.acceptedAction());-
255 }
never executed: end of block
 else {		0
256 setCanDrop(false);-
257 updateCursor(Qt::IgnoreAction);-
258 }
never executed: end of block
0
259 setExecutedDropAction(Qt::IgnoreAction);-
260}
never executed: end of block
0
261-
262void QSimpleDrag::cancel()-
263{-
264 QBasicDrag::cancel();-
265 if (drag()
drag()Description
TRUEnever evaluated
FALSEnever evaluated
 && m_current_window
m_current_windowDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
266 QWindowSystemInterface::handleDrag(m_current_window, 0, QPoint(), Qt::IgnoreAction);-
267 m_current_window = 0;-
268 }
never executed: end of block
0
269}
never executed: end of block
0
270-
271void QSimpleDrag::move(const QPoint &globalPos)-
272{-
273-
274 moveShapedPixmapWindow(globalPos);-
275 QWindow *window = topLevelAt(globalPos);-
276 if (!window
!windowDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
277 return;
never executed: return;
0
278-
279 const QPoint pos = globalPos - window->geometry().topLeft();-
280 const QPlatformDragQtResponse qt_response =-
281 QWindowSystemInterface::handleDrag(window, drag()->mimeData(), pos, drag()->supportedActions());-
282-
283 updateCursor(qt_response.acceptedAction());-
284 setCanDrop(qt_response.isAccepted());-
285}
never executed: end of block
0
286-
287void QSimpleDrag::drop(const QPoint &globalPos)-
288{-
289-
290-
291 QBasicDrag::drop(globalPos);-
292 QWindow *window = topLevelAt(globalPos);-
293 if (!window
!windowDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
294 return;
never executed: return;
0
295-
296 const QPoint pos = globalPos - window->geometry().topLeft();-
297 const QPlatformDropQtResponse response =-
298 QWindowSystemInterface::handleDrop(window, drag()->mimeData(),pos, drag()->supportedActions());-
299 if (response.isAccepted()
response.isAccepted()Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
300 setExecutedDropAction(response.acceptedAction());-
301 }
never executed: end of block
 else {		0
302 setExecutedDropAction(Qt::IgnoreAction);-
303 }
never executed: end of block
0
304}-
305-
306-
307-
308-
Switch to Source codePreprocessed file
Generated by Squish Coco Non-Commercial 4.3.0-BETA-master-30-08-2018-4cb69e9