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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
Download Patch File Download Diff File Expand all files Collapse all files

58
src/common/datavcmn.cpp
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@@ -1688,6 +1688,64 @@ void wxDataViewCtrlBase::StartEditor(const wxDataViewItem& item, unsigned int co
EditItem(item, GetColumn(column));
}
#if wxUSE_DRAG_AND_DROP
wxDataObject* wxDataViewCtrlBase::CreateDataObject(const wxDataFormatArray& formats)
{
if (formats.GetCount() == 0)
{
return NULL;
}
wxDataObjectComposite *dataObject(new wxDataObjectComposite);
for (size_t i = 0; i < formats.GetCount(); ++i)
{
switch (formats.Item(i).GetType())
{
case wxDF_TEXT:
case wxDF_OEMTEXT:
case wxDF_UNICODETEXT:
dataObject->Add(new wxTextDataObject);
break;
case wxDF_BITMAP:
dataObject->Add(new wxBitmapDataObject);
break;
case wxDF_FILENAME:
dataObject->Add(new wxFileDataObject);
break;
case wxDF_HTML:
dataObject->Add(new wxHTMLDataObject);
break;
case wxDF_METAFILE:
case wxDF_SYLK:
case wxDF_DIF:
case wxDF_TIFF:
case wxDF_DIB:
case wxDF_PALETTE:
case wxDF_PENDATA:
case wxDF_RIFF:
case wxDF_WAVE:
case wxDF_ENHMETAFILE:
case wxDF_LOCALE:
case wxDF_PRIVATE:
dataObject->Add(new wxCustomDataObject(formats.Item(i)));
break;
case wxDF_INVALID:
case wxDF_MAX:
break;
}
}
return dataObject;
}
#endif // wxUSE_DRAG_AND_DROP
// ---------------------------------------------------------
// wxDataViewEvent
// ---------------------------------------------------------