tdf#96708: don't modify document while copying to clipboard

I.e., don't try to create auto-layout for clipboard pages which
don't contain one; don't resize objects to text.

Also, don't invalidate items that are equal to defaults,
because explicitly set items are not the same as absent items:
pasting an object without an item makes the property to inherit
new target's default, while when the item is present, the default
doesn't apply.

Also, don't consider selected state of the page while stringifying
- this makes selected page string to differ from not-selected
clipboard page.

Change-Id: I172e03e1a8c428e5fcae3a116cc9ad8de79f1a87
Reviewed-on: https://gerrit.libreoffice.org/20871
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Andras Timar <andras.timar@collabora.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/sd/inc/drawdoc.hxx b/sd/inc/drawdoc.hxx
index 23e5ecf2984d..e2ff20cd2b55 100644
--- a/sd/inc/drawdoc.hxx
+++ b/sd/inc/drawdoc.hxx
@@ -237,6 +237,7 @@ public:
     SAL_DLLPRIVATE void                SetAllocDocSh(bool bAlloc);
 
     SAL_DLLPRIVATE void                CreatingDataObj( SdTransferable* pTransferable ) { mpCreatingTransferable = pTransferable; }
+    SAL_DLLPRIVATE virtual bool        IsCreatingDataObj() const override { return mpCreatingTransferable != nullptr; }
 
     /** if the document does not contain at least one handout, one slide and one notes page with
         at least one master each this methods creates them.