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Accept multiple data formats via drag-and-drop in wxDataViewCtrl

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Allow specifying multiple formats to be accepted when dragging data to
wxDataViewCtrl in the generic and Cocoa implementations.

Add wxDataViewCtrlBase::EnableDropTarget() overload taking an array of
wxDataFormats to support this at the API level.

Add new DoEnableDropTarget() used by both EnableDropTarget() overloads
and implement it in the generic and Cocoa ports. GTK implementation
still uses only a single format, as before.

Also refactor the Cocoa implementation: all operations using dragged
data are now handled by wxDropTarget and unnecessary DataViewPboardType
as removed.

Update the dataview sample to show the new functionality.
This commit is contained in:
valid-ptr
2021-08-22 10:25:32 +03:00
committed by Vadim Zeitlin
parent d30986be78
commit 7129d2b11c
16 changed files with 260 additions and 378 deletions
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9
samples/dataview/dataview.cpp
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@@ -1430,21 +1430,20 @@ void MyFrame::OnDrop( wxDataViewEvent &event )
return;
}
wxTextDataObject obj;
obj.SetData( wxDF_UNICODETEXT, event.GetDataSize(), event.GetDataBuffer() );
const wxTextDataObject* const obj = static_cast<wxTextDataObject*>(event.GetDataObject());
if ( item.IsOk() )
{
if (m_music_model->IsContainer(item))
{
wxLogMessage("Text '%s' dropped in container '%s' (proposed index = %i)",
obj.GetText(), m_music_model->GetTitle(item), event.GetProposedDropIndex());
obj->GetText(), m_music_model->GetTitle(item), event.GetProposedDropIndex());
}
else
wxLogMessage("Text '%s' dropped on item '%s'", obj.GetText(), m_music_model->GetTitle(item));
wxLogMessage("Text '%s' dropped on item '%s'", obj->GetText(), m_music_model->GetTitle(item));
}
else
wxLogMessage("Text '%s' dropped on background (proposed index = %i)", obj.GetText(), event.GetProposedDropIndex());
wxLogMessage("Text '%s' dropped on background (proposed index = %i)", obj->GetText(), event.GetProposedDropIndex());
}
#endif // wxUSE_DRAG_AND_DROP