1999-01-13 09:23:31 -05:00
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\section{\class{wxDropSource}}\label{wxdropsource}
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This class represents a source for a drag and drop operation.
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2000-07-15 15:51:35 -04:00
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See \helpref{Drag and drop overview}{wxdndoverview} and \helpref{wxDataObject overview}{wxdataobjectoverview}
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1999-12-29 06:52:51 -05:00
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for more information.
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1999-01-13 09:23:31 -05:00
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\wxheading{Derived from}
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None
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1999-02-15 15:41:29 -05:00
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\wxheading{Include files}
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<wx/dnd.h>
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1999-01-13 09:23:31 -05:00
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\wxheading{Types}
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\index{wxDragResult}wxDragResult is defined as follows:
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2000-03-17 12:59:56 -05:00
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\begin{verbatim}
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enum wxDragResult
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{
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wxDragError, // error prevented the d&d operation from completing
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wxDragNone, // drag target didn't accept the data
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wxDragCopy, // the data was successfully copied
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wxDragMove, // the data was successfully moved (MSW only)
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wxDragLink, // operation is a drag-link
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wxDragCancel // the operation was cancelled by user (not an error)
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};
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\end{verbatim}
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\wxheading{See also}
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1999-12-29 06:52:51 -05:00
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\helpref{wxDropTarget}{wxdroptarget},
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\helpref{wxTextDropTarget}{wxtextdroptarget}, \helpref{wxFileDropTarget}{wxfiledroptarget}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxDropSource::wxDropSource}\label{wxdropsourcewxdropsource}
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2003-11-15 10:08:28 -05:00
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\func{}{wxDropSource}{\param{wxWindow*}{ win = NULL},\param{const wxIconOrCursor\& }{iconCopy = wxNullIconOrCursor}, \param{const wxIconOrCursor\& }{iconMove = wxNullIconOrCursor}, \param{const wxIconOrCursor\& }{iconNone = wxNullIconOrCursor}}
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2003-11-15 10:08:28 -05:00
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\func{}{wxDropSource}{\param{wxDataObject\&}{ data}, \param{wxWindow*}{ win = NULL},\param{const wxIconOrCursor\& }{iconCopy = wxNullIconOrCursor}, \param{const wxIconOrCursor\& }{iconMove = wxNullIconOrCursor}, \param{const wxIconOrCursor\& }{iconNone = wxNullIconOrCursor}}
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2000-07-15 15:51:35 -04:00
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The constructors for wxDataObject.
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If you use the constructor without {\it data} parameter you must call
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\helpref{SetData}{wxdropsourcesetdata} later.
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Note that the exact type of {\it iconCopy} and subsequent parameters differs
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between wxMSW and wxGTK: these are cursors under Windows but icons for GTK.
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You should use the macro \helpref{wxDROP\_ICON}{wxdropicon} in portable
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programs instead of directly using either of these types.
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\wxheading{Parameters}
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\docparam{win}{The window which initiates the drag and drop operation.}
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\docparam{iconCopy}{The icon or cursor used for feedback for copy operation.}
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\docparam{iconMove}{The icon or cursor used for feedback for move operation.}
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\docparam{iconNone}{The icon or cursor used for feedback when operation can't be done.}
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{\it win} is the window which initiates the drag and drop operation.
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\membersection{wxDropSource::\destruct{wxDropSource}}\label{wxdropsourcedtor}
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\func{virtual }{\destruct{wxDropSource}}{\void}
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\membersection{wxDropSource::SetData}\label{wxdropsourcesetdata}
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1999-01-24 18:56:51 -05:00
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\func{void}{SetData}{\param{wxDataObject\&}{ data}}
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1999-12-29 04:48:10 -05:00
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Sets the data \helpref{wxDataObject}{wxdataobject} associated with the
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drop source. This will not delete any previously associated data.
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\membersection{wxDropSource::DoDragDrop}\label{wxdropsourcedodragdrop}
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2002-04-28 10:30:54 -04:00
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\func{virtual wxDragResult}{DoDragDrop}{\param{int }{flags = {\tt wxDrag\_CopyOnly}}}
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Do it (call this in response to a mouse button press, for example). This starts
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the drag-and-drop operation which will terminate when the user releases the
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mouse.
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\wxheading{Parameters}
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\docparam{flags}{If {\tt wxDrag\_AllowMove} is included in the flags, data may
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be moved and not only copied (default). If {\tt wxDrag\_DefaultMove} is
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specified (which includes the previous flag), this is even the default
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operation}.
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\wxheading{Return value}
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Returns the operation requested by the user, may be {\tt wxDragCopy}, {\tt
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wxDragMove}, {\tt wxDragLink}, {\tt wxDragCancel} or {\tt wxDragNone} if an error occured.
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\membersection{wxDropSource::GetDataObject}\label{wxdropsourcegetdataobject}
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\func{wxDataObject *}{GetDataObject}{\void}
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Returns the wxDataObject object that has been assigned previously.
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\membersection{wxDropSource::GiveFeedback}\label{wxdropsourcegivefeedback}
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2004-08-06 14:28:19 -04:00
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\func{virtual bool}{GiveFeedback}{\param{wxDragResult }{effect}}
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Overridable: you may give some custom UI feedback during the drag and drop operation
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in this function. It is called on each mouse move, so your implementation must not be too
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slow.
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\wxheading{Parameters}
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2004-12-11 16:33:17 -05:00
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\docparam{effect}{The effect to implement. One of {\tt wxDragCopy}, {\tt wxDragMove}, {\tt wxDragLink} and {\tt wxDragNone}. }
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\docparam{scrolling}{true if the window is scrolling. MSW only. }
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\wxheading{Return value}
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Return false if you want default feedback, or true if you implement your own
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feedback. The return values is ignored under GTK.
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2004-12-11 16:33:17 -05:00
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\membersection{wxDropSource::SetCursor}\label{wxdropsourcesetcursor}
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\func{void}{SetCursor}{\param{wxDragResult }{res}, \param{const wxCursor\& }{cursor}}
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Set the icon to use for a certain drag result.
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\wxheading{Parameters}
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\docparam{res}{The drag result to set the icon for. }
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\docparam{cursor}{The ion to show when this drag result occurs. }
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