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get rid of the built-in drop target in rich text controls before setting the user-defined one as otherwise it fails

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48704 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2007-09-15 01:09:01 +00:00
parent 0dd13d21cd
commit 20a0e99964
2 changed files with 43 additions and 0 deletions
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39
src/msw/textctrl.cpp
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@@ -77,6 +77,15 @@
#include "wx/msw/missing.h"
#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
// dummy value used for m_dropTarget, different from any valid pointer value
// (which are all even under Windows) and NULL
static wxDropTarget *
wxRICHTEXT_DEFAULT_DROPTARGET = wx_reinterpret_cast(wxDropTarget *, 1);
#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
@@ -308,6 +317,20 @@ bool wxTextCtrl::Create(wxWindow *parent,
if ( !MSWCreateText(value, pos, size) )
return false;
#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
if ( IsRich() )
{
// rich text controls have a default associated drop target which
// allows them to receive (rich) text dropped on them, which is nice,
// but prevents us from associating a user-defined drop target with
// them as we need to unregister the old one first
//
// to make it work, we set m_dropTarget to this special value initially
// and check for it in our SetDropTarget()
m_dropTarget = wxRICHTEXT_DEFAULT_DROPTARGET;
}
#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
return true;
}
@@ -2405,6 +2428,22 @@ bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
}
#if wxUSE_DRAG_AND_DROP
void wxTextCtrl::SetDropTarget(wxDropTarget *dropTarget)
{
if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET )
{
// get rid of the built-in drop target
::RevokeDragDrop(GetHwnd());
m_dropTarget = NULL;
}
wxTextCtrlBase::SetDropTarget(dropTarget);
}
#endif // wxUSE_DRAG_AND_DROP
// ----------------------------------------------------------------------------
// colour setting for the rich edit controls
// ----------------------------------------------------------------------------