QPixmap QDragManager::dragCursor(Qt::DropAction action) const
{
QDragPrivate * d = dragPrivate();
if (d && d->customCursors.contains(action))
return d->customCursors[action];
else if (action == Qt::MoveAction)
return QApplicationPrivate::instance()->getPixmapCursor(Qt::DragMoveCursor);
else if (action == Qt::CopyAction)
return QApplicationPrivate::instance()->getPixmapCursor(Qt::DragCopyCursor);
else if (action == Qt::LinkAction)
return QApplicationPrivate::instance()->getPixmapCursor(Qt::DragLinkCursor);
#ifdef Q_WS_WIN
else if (action == Qt::IgnoreAction)
return QApplicationPrivate::instance()->getPixmapCursor(Qt::ForbiddenCursor);
#endif
return QPixmap();
}
QPixmap QDragManager::dragCursor(Qt::DropAction action) const
{
QDragPrivate * d = dragPrivate();
if (d && d->customCursors.contains(action))
return d->customCursors[action];
else if (action == Qt::MoveAction)
return pm_cursor[0];
else if (action == Qt::CopyAction)
return pm_cursor[1];
else if (action == Qt::LinkAction)
return pm_cursor[2];
#ifdef Q_WS_WIN
else if (action == Qt::IgnoreAction)
return pm_cursor[3];
#endif
return QPixmap();
}
Qt::DropAction QDragManager::drag(QDrag *o)
{
Q_ASSERT(!qt_symbian_dnd_dragging);
if (object == o || !o || !o->source())
return Qt::IgnoreAction;
if (object) {
cancel();
qApp->removeEventFilter(this);
beingCancelled = false;
}
object = drag_object = o;
oldstate = Qt::NoModifier; // #### Should use state that caused the drag
willDrop = false;
updatePixmap();
updateCursor();
#ifndef QT_NO_CURSOR
qt_symbian_set_cursor_visible(true); //force cursor on even for touch phone
#endif
object->d_func()->target = 0;
qApp->installEventFilter(this);
global_accepted_action = defaultAction(dragPrivate()->possible_actions, Qt::NoModifier);
qt_symbian_dnd_dragging = true;
eventLoop = new QEventLoop;
// block
(void) eventLoop->exec(QEventLoop::AllEvents);
delete eventLoop;
eventLoop = 0;
#ifndef QT_NO_CURSOR
qt_symbian_set_cursor_visible(false);
overrideCursor = QCursor(); //deref the cursor data
qt_symbian_dnd_dragging = false;
#endif
return global_accepted_action;
}
Qt::DropAction QDragManager::defaultAction(Qt::DropActions possibleActions,
Qt::KeyboardModifiers modifiers) const
{
#ifdef QDND_DEBUG
qDebug("QDragManager::defaultAction(Qt::DropActions possibleActions)");
qDebug("keyboard modifiers : %s", KeyboardModifiersToString(modifiers).latin1());
#endif
QDragPrivate *d = dragPrivate();
Qt::DropAction defaultAction = d ? d->defaultDropAction : Qt::IgnoreAction;
if (defaultAction == Qt::IgnoreAction) {
//This means that the drag was initiated by QDrag::start and we need to
//preserve the old behavior
#ifdef Q_WS_MAC
defaultAction = Qt::MoveAction;
#else
defaultAction = Qt::CopyAction;
#endif
}
#ifdef Q_WS_MAC
if (modifiers & Qt::ControlModifier && modifiers & Qt::AltModifier)
defaultAction = Qt::LinkAction;
else if (modifiers & Qt::AltModifier)
defaultAction = Qt::CopyAction;
else if (modifiers & Qt::ControlModifier)
defaultAction = Qt::MoveAction;
#else
if (modifiers & Qt::ControlModifier && modifiers & Qt::ShiftModifier)
defaultAction = Qt::LinkAction;
else if (modifiers & Qt::ControlModifier)
defaultAction = Qt::CopyAction;
else if (modifiers & Qt::ShiftModifier)
defaultAction = Qt::MoveAction;
else if (modifiers & Qt::AltModifier)
defaultAction = Qt::LinkAction;
#endif
// if the object is set take the list of possibles from it
if (object)
possibleActions = object->d_func()->possible_actions;
#ifdef QDND_DEBUG
qDebug("possible actions : %s", dragActionsToString(possibleActions).latin1());
#endif
// Check if the action determined is allowed
if (!(possibleActions & defaultAction)) {
if (possibleActions & Qt::CopyAction)
defaultAction = Qt::CopyAction;
else if (possibleActions & Qt::MoveAction)
defaultAction = Qt::MoveAction;
else if (possibleActions & Qt::LinkAction)
defaultAction = Qt::LinkAction;
else
defaultAction = Qt::IgnoreAction;
}
#ifdef QDND_DEBUG
qDebug("default action : %s", dragActionsToString(defaultAction).latin1());
#endif
return defaultAction;
}
bool QDragManager::hasCustomDragCursors() const
{
QDragPrivate * d = dragPrivate();
return d && !d->customCursors.isEmpty();
}