Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fixed all warnings for topic overviews (letters a,h)

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52096 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2008-02-25 22:29:37 +00:00
parent 30724d046d
commit 98ba1eee5d
24 changed files with 406 additions and 360 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
docs/doxygen/overviews/dnd.h
View File

@@ -10,19 +10,19 @@
@page overview_dnd Drag and drop overview
Classes: #wxDataObject, #wxTextDataObject, #wxDropSource, #wxDropTarget,
#wxTextDropTarget, #wxFileDropTarget
Classes: wxDataObject, wxTextDataObject, wxDropSource, wxDropTarget,
wxTextDropTarget, wxFileDropTarget
Note that @c wxUSE_DRAG_AND_DROP must be defined in @c setup.h in order
to use drag and drop in wxWidgets.
See also: @ref overview_dataobject and @ref samplednd_overview.
See also: @ref overview_dataobject and @ref page_utils_samples_dnd.
It may be noted that data transfer to and from the clipboard is quite
similar to data transfer with drag and drop and the code to implement
these two types is almost the same. In particular, both data transfer
mechanisms store data in some kind of #wxDataObject and identify its format(s)
using the #wxDataFormat class.
mechanisms store data in some kind of wxDataObject and identify its format(s)
using the wxDataFormat class.
To be a @e drag source, i.e. to provide the data which may be dragged by
the user elsewhere, you should implement the following steps:
@@ -44,14 +44,14 @@
@endcode
@li @b Dragging: The call to DoDragDrop() blocks the program until the user releases
the mouse button (unless you override the #GiveFeedback function to do something
special). When the mouse moves in a window of a program which understands the
same drag-and-drop protocol (any program under Windows or any program supporting
the XDnD protocol under X Windows), the corresponding #wxDropTarget methods
the mouse button (unless you override the wxDropSource::GiveFeedback function to
do something special). When the mouse moves in a window of a program which understands
the same drag-and-drop protocol (any program under Windows or any program supporting
the XDnD protocol under X Windows), the corresponding wxDropTarget methods
are called - see below.
@li <b>Processing the result</b>: DoDragDrop() returns an @e effect code which
is one of the values of @c wxDragResult enum (explained #here):
is one of the values of @c wxDragResult enum (explained in wxDropTarget page):
@code
switch (result)
@@ -73,18 +73,18 @@
follow the instructions below:
@li @b Initialization: For a window to be a drop target, it needs to have
an associated #wxDropTarget object. Normally, you will call wxWindow::SetDropTarget
during window creation associating your drop target with it. You must derive a class from
wxDropTarget and override its pure virtual methods. Alternatively, you may
derive from #wxTextDropTarget or #wxFileDropTarget and override their OnDropText()
an associated wxDropTarget object. Normally, you will call wxWindow::SetDropTarget
during window creation associating your drop target with it. You must derive a class
from wxDropTarget and override its pure virtual methods. Alternatively, you may
derive from wxTextDropTarget or wxFileDropTarget and override their OnDropText()
or OnDropFiles() method.
@li @b Drop: When the user releases the mouse over a window, wxWidgets
asks the associated wxDropTarget object if it accepts the data. For this,
a #wxDataObject must be associated with the drop target and this data object will
a wxDataObject must be associated with the drop target and this data object will
be responsible for the format negotiation between the drag source and the drop target.
If all goes well, then #OnData will get called and the wxDataObject belonging to
the drop target can get filled with data.
If all goes well, then wxDropTarget::OnData will get called and the wxDataObject belonging
to the drop target can get filled with data.
@li <b>The end</b>: After processing the data, DoDragDrop() returns either
wxDragCopy or wxDragMove depending on the state of the keys Ctrl, Shift