| Home | All Classes | Main Classes | Annotated | Grouped Classes | Functions | |
The QDropEvent class provides an event which is sent when a drag and drop is completed. More...
#include <qevent.h>
Inherits QEvent and QMimeSource.
Inherited by QDragMoveEvent.
The QDropEvent class provides an event which is sent when a drag and drop is completed.
When a widget accepts drop events, it will receive this event if it has accepted the most recent QDragEnterEvent or QDragMoveEvent sent to it.
The widget should use data() to extract the data in an appropriate format.
See also Drag And Drop Classes and Event Classes.
This enum describes the action which a source requests that a target perform with dropped data.
The Link and Move actions only makes sense if the data is a reference, for example, text/uri-list file lists (see QUriDrag).
Constructs a drop event that drops a drop of type typ on point pos.
Call this function to indicate whether the event provided data which your widget processed. Set y to TRUE (the default) if your widget could process the data, otherwise set y to FALSE. To get the data, use encodedData(), or preferably, the decode() methods of existing QDragObject subclasses, such as QTextDrag::decode(), or your own subclasses.
Warning: To accept or reject the drop, don't call this function, call acceptAction() instead. This function indicates whether you processed the event at all.
See also acceptAction().
Example: iconview/simple_dd/main.cpp.
Call this to indicate that the action described by action() is accepted (i.e. if y is TRUE, which is the default), not merely the default copy action. If you call acceptAction(TRUE), there is no need to also call accept(TRUE).
Examples: dirview/dirview.cpp and fileiconview/qfileiconview.cpp.
Returns the Action which the target is requesting to be performed with the data. If your application understands the action and can process the supplied data, call acceptAction(); if your application can process the supplied data but can only perform the Copy action, call accept().
Examples: dirview/dirview.cpp and fileiconview/qfileiconview.cpp.
This function is obsolete. It is provided to keep old source working. We strongly advise against using it in new code.
Use QDropEvent::encodedData().
data() normally needs to get the data from the drag source, which is potentially very slow, so it's advisable to call this function only if you're sure that you will need the data in format.
The resulting data will have a size of 0 if the format was not available.
See also format() and QByteArray::size().
Reimplemented from QMimeSource.
This function is provided mainly for debugging. Most drop targets will use provides().
See also data() and provides().
Example: iconview/main.cpp.
Reimplemented from QMimeSource.
The opposite of accept(), i.e. you have ignored the drop event.
Example: fileiconview/qfileiconview.cpp.
Returns TRUE if the drop target accepts the event; otherwise returns FALSE.
Returns TRUE if the drop action was accepted by the drop site; otherwise returns FALSE.
Returns the position where the drop was made.
Example: dirview/dirview.cpp.
See also data().
Example: fileiconview/qfileiconview.cpp.
Reimplemented from QMimeSource.
Sets the action to a. This is used internally, you should not need to call this in your code: the source decides the action, not the target.
Sets the drop to happen at point np. You do not normally need to use this as it will be set internally before your widget receives the drop event.
This is useful if your widget needs special behavior when dragging to itself, etc.
See QDragObject::QDragObject() and subclasses.
This file is part of the Qt toolkit. Copyright © 1995-2002 Trolltech. All Rights Reserved.
| Copyright © 2002 Trolltech | Trademarks | Qt version 3.0.5
|