From: Julian Smart Date: Tue, 8 Dec 1998 23:33:12 +0000 (+0000) Subject: Removed syntax errors in tdnd.tex X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/b1327f57abd9c92ad9ba0eee2bf780747e42a245 Removed syntax errors in tdnd.tex git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1138 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- diff --git a/docs/latex/wx/tdnd.tex b/docs/latex/wx/tdnd.tex index 67c9b6b7ed..8251c44d92 100644 --- a/docs/latex/wx/tdnd.tex +++ b/docs/latex/wx/tdnd.tex @@ -1,9 +1,9 @@ \section{Drag-and-drop and clipboard overview}\label{wxdndoverview} -Classes: \helpref{wxDataObject}wxdataobject +Classes: \helpref{wxDataObject}{wxdataobject} -% \helpref{wxTextDataObject}wxtextdataobject -% \helpref{wxDropSource}wxdropsource +% \helpref{wxTextDataObject}{wxtextdataobject} +% \helpref{wxDropSource}{wxdropsource} % \helpref{wxDropTarget}{wxdroptarget} % \helpref{wxTextDropTarget}{wxtextdroptarget} % \helpref{wxFileDropTarget}{wxfiledroptarget} @@ -16,13 +16,11 @@ quite related. Drag and drop and clipboard are just too ways of passing the data around and so the code required to implement both types of the operations is almost the same. -In any case, you work with some data which is represented by the -\helpref{wxDataObject}{wxdataobject} class. It is capable to contain any kind -data in one of any of predefined formats (see enum -\helpref{StdFormatand}{stdformat}) and is smart enough to describe the format +In any case, you work with some data which is represented by +the \helpref{wxDataObject}{wxdataobject} class. It is capable to contain any kind +data in one of any of predefined formats (see enum \helpref{StdFormatand}{stdformat}) and is smart enough to describe the format of data it contains. There is also a specialization of this class which stores -only text - the only difference between -\helpref{wxTextDataObject}{wxtextdataobject} and wxDataObject is that the +only text - the only difference between \helpref{wxTextDataObject}{wxtextdataobject} and wxDataObject is that the first one is easily constructed from wxString. Also, for both kinds of operations, there is a sender which provides data and @@ -33,17 +31,20 @@ in any way he likes. In the case of a drag and drop operation, the sender is called a {\it drop source} while the receiver is a {\it dtop target}. There are several steps in the dragging process: + \begin{itemize}\itemsep=0pt -\item{preparation} First of all, the data object must be created and +\item {\bf preparation} First of all, the data object must be created and initilized with the data you wish to drag. For example: + \begin{verbatim} wxTextDataObject data("This string will be dragged."); \end{verbatim}. Of course, the data object may contain arbitrary data of any type. -\item{drag start} This happens when you call -\helpref{DoDragDrop}{wxdropsourcedodragdrop} function. For this you must first + +\item{drag start} This happens when you call \helpref{DoDragDrop}{wxdropsourcedodragdrop} function. For this you must first construct a wxDropSource object and associate the data object from the previous step with it like this: + \begin{verbatim} wxDropSource dragSource(data, this); @@ -51,23 +52,20 @@ previous step with it like this: wxDropSource dragSource(this); dragSource.SetData(data); \end{verbatim}, -\item{dragging} The call to DoDragDrop() blocks until the user release the -mouse button (unless you override -\helpref{GiveFeedback}{wxdropsourcegivefeedback} function to do something + +\item {\bf dragging} The call to DoDragDrop() blocks until the user release the +mouse button (unless you override \helpref{GiveFeedback}{wxdropsourcegivefeedback} function to do something special). When the mouse moves in a window of a wxWindows program, the corresponding wxDropTarget methods are called (the data can be also dragged to any other program under Windows or to any program supporting the same protocol under X Windows). -\item{drop} When the user releases the mouse over a window, wxWindows verifies -if the wxDropTarget object associated (with -\helpref{SetDropTarget}{setdroptarget}) with this window accepts the data. For -this, \helpref{GetFormatCount}{wxdroptargetgetformatcount} and -\helpref{GetFormat}{wxdroptargetgetformat} are used and if the format is -supported (i.e. is one of returned by GetFormat()), then -\helpref{OnDrop}{wxdroptargetondrop} is called. Otherwise, wxDragNone is +\item {\bf drop} When the user releases the mouse over a window, wxWindows verifies +if the wxDropTarget object associated (with \helpref{SetDropTarget}{setdroptarget}) with this window accepts the data. For +this, \helpref{GetFormatCount}{wxdroptargetgetformatcount} and \helpref{GetFormat}{wxdroptargetgetformat} are used and if the format is +supported (i.e. is one of returned by GetFormat()), then \helpref{OnDrop}{wxdroptargetondrop} is called. Otherwise, wxDragNone is returned by DoDragDrop() and nothing happens. -\item{the end} Finally, the receiver processes the data (e.g. pastes the text -in it's window). DoDragDrop() returns either wxDragCopy or wxDragMove +\item {\bf the end} Finally, the receiver processes the data (e.g. pastes the text +in its window). DoDragDrop() returns either wxDragCopy or wxDragMove depending on the state of the keys (, and ) at the moment of drop. \end{itemize}