rbhz#1326602 avoid exp. bg bitmaps from deleted slides

ODF export uses SvxUnoBitmapTable (impl. of
com.sun.star.drawing.BitmapTable) to create fill bitmap styles. That
returns all XATTR_FILLBITMAP items that are in the document's pool. So
we ensure that bitmaps that are only used on deleted (either explicitly
or by undoing their insertion) slides are not in the pool.

Change-Id: I54c594a94989158f22b156fe660c1e716b988b3e

4 files changed, 126 insertions, 2 deletions

diff --git a/include/svx/svdundo.hxx b/include/svx/svdundo.hxx
index 5f3ee5f1601d..dc09f22be701 100644
--- a/include/svx/svdundo.hxx
+++ b/include/svx/svdundo.hxx
@@ -22,6 +22,7 @@
 
 #include <sal/config.h>
 
+#include <memory>
 #include <vector>
 
 #include <svl/solar.hrc>
@@ -33,6 +34,7 @@
 #include <svx/svxdllapi.h>
 
 class SfxItemSet;
+class SfxPoolItem;
 class SfxStyleSheet;
 class SdrView;
 class SdrPageView;
@@ -584,6 +586,8 @@ class SVX_DLLPUBLIC SdrUndoDelPage : public SdrUndoPageList
     // When deleting a MasterPage, we remember all relations of the
     // Character Page with the MasterPage in this UndoGroup.
     SdrUndoGroup*               pUndoGroup;
+    std::unique_ptr<SfxPoolItem> mpFillBitmapItem;
+    bool mbHasFillBitmap;
 
 public:
     SdrUndoDelPage(SdrPage& rNewPg);
@@ -597,6 +601,11 @@ public:
 
     virtual void SdrRepeat(SdrView& rView) override;
     virtual bool CanSdrRepeat(SdrView& rView) const override;
+
+private:
+    void queryFillBitmap(const SfxItemSet &rItemSet);
+    void clearFillBitmap();
+    void restoreFillBitmap();
 };
 
 /**
diff --git a/sd/source/ui/func/undoback.cxx b/sd/source/ui/func/undoback.cxx
index 126101fba2be..704b551c7469 100644
--- a/sd/source/ui/func/undoback.cxx
+++ b/sd/source/ui/func/undoback.cxx
@@ -21,8 +21,14 @@
 #include "sdpage.hxx"
 #include "sdresid.hxx"
 #include "strings.hrc"
+
+#include <com/sun/star/drawing/FillStyle.hpp>
+
+#include <o3tl/make_unique.hxx>
+
 #include <svl/itemset.hxx>
 
+#include <svx/xfillit0.hxx>
 
 SdBackgroundObjUndoAction::SdBackgroundObjUndoAction(
     SdDrawDocument& rDoc,
@@ -30,10 +36,12 @@ SdBackgroundObjUndoAction::SdBackgroundObjUndoAction(
     const SfxItemSet& rItenSet)
 :   SdUndoAction(&rDoc),
     mrPage(rPage),
-    mpItemSet(new SfxItemSet(rItenSet))
+    mpItemSet(new SfxItemSet(rItenSet)),
+    mbHasFillBitmap(false)
 {
     OUString aString( SdResId( STR_UNDO_CHANGE_PAGEFORMAT ) );
     SetComment( aString );
+    saveFillBitmap(*mpItemSet);
 }
 
 SdBackgroundObjUndoAction::~SdBackgroundObjUndoAction()
@@ -45,9 +53,14 @@ void SdBackgroundObjUndoAction::ImplRestoreBackgroundObj()
 {
     SfxItemSet* pNew = new SfxItemSet(mrPage.getSdrPageProperties().GetItemSet());
     mrPage.getSdrPageProperties().ClearItem();
+    if (bool(mpFillBitmapItem))
+        restoreFillBitmap(*mpItemSet);
+    mpFillBitmapItem.reset();
+    mbHasFillBitmap = false;
     mrPage.getSdrPageProperties().PutItemSet(*mpItemSet);
     delete mpItemSet;
     mpItemSet = pNew;
+    saveFillBitmap(*mpItemSet);
 
     // tell the page that it's visualization has changed
     mrPage.ActionChanged();
@@ -65,7 +78,33 @@ void SdBackgroundObjUndoAction::Redo()
 
 SdUndoAction* SdBackgroundObjUndoAction::Clone() const
 {
-    return new SdBackgroundObjUndoAction(*mpDoc, mrPage, *mpItemSet);
+    std::unique_ptr<SdBackgroundObjUndoAction> pCopy = o3tl::make_unique<SdBackgroundObjUndoAction>(*mpDoc, mrPage, *mpItemSet);
+    if (mpFillBitmapItem)
+        pCopy->mpFillBitmapItem.reset(mpFillBitmapItem->Clone());
+    pCopy->mbHasFillBitmap = mbHasFillBitmap;
+    return pCopy.release();
+}
+
+void SdBackgroundObjUndoAction::saveFillBitmap(SfxItemSet &rItemSet)
+{
+    const SfxPoolItem *pItem = nullptr;
+    if (rItemSet.GetItemState(XATTR_FILLBITMAP, false, &pItem) == SfxItemState::SET)
+        mpFillBitmapItem.reset(pItem->Clone());
+    if (bool(mpFillBitmapItem))
+    {
+        if (rItemSet.GetItemState(XATTR_FILLSTYLE, false, &pItem) == SfxItemState::SET)
+            mbHasFillBitmap = static_cast<const XFillStyleItem*>(pItem)->GetValue() == css::drawing::FillStyle_BITMAP;
+        rItemSet.ClearItem(XATTR_FILLBITMAP);
+        if (mbHasFillBitmap)
+            rItemSet.ClearItem(XATTR_FILLSTYLE);
+    }
+}
+
+void SdBackgroundObjUndoAction::restoreFillBitmap(SfxItemSet &rItemSet)
+{
+    rItemSet.Put(*mpFillBitmapItem);
+    if (mbHasFillBitmap)
+        rItemSet.Put(XFillStyleItem(css::drawing::FillStyle_BITMAP));
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sd/source/ui/inc/undoback.hxx b/sd/source/ui/inc/undoback.hxx
index 3b1553b4d239..35370ca01627 100644
--- a/sd/source/ui/inc/undoback.hxx
+++ b/sd/source/ui/inc/undoback.hxx
@@ -20,11 +20,13 @@
 #ifndef INCLUDED_SD_SOURCE_UI_INC_UNDOBACK_HXX
 #define INCLUDED_SD_SOURCE_UI_INC_UNDOBACK_HXX
 
+#include <memory>
 #include "sdundo.hxx"
 
 class SdDrawDocument;
 class SdPage;
 class SfxItemSet;
+class SfxPoolItem;
 
 // SdBackgroundObjUndoAction
 class SdBackgroundObjUndoAction : public SdUndoAction
@@ -33,8 +35,12 @@ private:
 
     SdPage&                 mrPage;
     SfxItemSet*             mpItemSet;
+    std::unique_ptr<SfxPoolItem> mpFillBitmapItem;
+    bool                    mbHasFillBitmap;
 
     void                    ImplRestoreBackgroundObj();
+    void                    saveFillBitmap(SfxItemSet &rItemSet);
+    void                    restoreFillBitmap(SfxItemSet &rItemSet);
 
 public:
 
diff --git a/svx/source/svdraw/svdundo.cxx b/svx/source/svdraw/svdundo.cxx
index e3cc47895528..675edb830ae7 100644
--- a/svx/source/svdraw/svdundo.cxx
+++ b/svx/source/svdraw/svdundo.cxx
@@ -17,6 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <com/sun/star/drawing/FillStyle.hpp>
 
 #include <svl/lstner.hxx>
 
@@ -27,6 +28,7 @@
 #include <svx/svdlayer.hxx>
 #include <svx/svdmodel.hxx>
 #include <svx/svdview.hxx>
+#include <svx/xfillit0.hxx>
 #include "svx/svdstr.hrc"
 #include "svdglob.hxx"
 #include <svx/scene3d.hxx>
@@ -1445,9 +1447,24 @@ SdrUndoPageList::~SdrUndoPageList()
 SdrUndoDelPage::SdrUndoDelPage(SdrPage& rNewPg)
     : SdrUndoPageList(rNewPg)
     , pUndoGroup(nullptr)
+    , mbHasFillBitmap(false)
 {
     bItsMine = true;
 
+    // keep fill bitmap separately to remove it from pool if not used elsewhere
+    if (mrPage.IsMasterPage())
+    {
+        SfxStyleSheet* const pStyleSheet = mrPage.getSdrPageProperties().GetStyleSheet();
+        if (pStyleSheet)
+            queryFillBitmap(pStyleSheet->GetItemSet());
+    }
+    else
+    {
+        queryFillBitmap(mrPage.getSdrPageProperties().GetItemSet());
+    }
+    if (bool(mpFillBitmapItem))
+        clearFillBitmap();
+
     // now remember the master page relationships
     if(mrPage.IsMasterPage())
     {
@@ -1482,6 +1499,8 @@ SdrUndoDelPage::~SdrUndoDelPage()
 
 void SdrUndoDelPage::Undo()
 {
+    if (bool(mpFillBitmapItem))
+        restoreFillBitmap();
     ImpInsertPage(nPageNum);
     if (pUndoGroup!=nullptr)
     {
@@ -1495,6 +1514,8 @@ void SdrUndoDelPage::Undo()
 void SdrUndoDelPage::Redo()
 {
     ImpRemovePage(nPageNum);
+    if (bool(mpFillBitmapItem))
+        clearFillBitmap();
     // master page relations are dissolved automatically
     DBG_ASSERT(!bItsMine,"RedoDeletePage: mrPage already belongs to UndoAction.");
     bItsMine=true;
@@ -1523,6 +1544,55 @@ bool SdrUndoDelPage::CanSdrRepeat(SdrView& /*rView*/) const
     return false;
 }
 
+void SdrUndoDelPage::queryFillBitmap(const SfxItemSet& rItemSet)
+{
+    const SfxPoolItem *pItem = nullptr;
+    if (rItemSet.GetItemState(XATTR_FILLBITMAP, false, &pItem) == SfxItemState::SET)
+        mpFillBitmapItem.reset(pItem->Clone());
+    if (rItemSet.GetItemState(XATTR_FILLSTYLE, false, &pItem) == SfxItemState::SET)
+        mbHasFillBitmap = static_cast<const XFillStyleItem*>(pItem)->GetValue() == css::drawing::FillStyle_BITMAP;
+}
+
+void SdrUndoDelPage::clearFillBitmap()
+{
+    if (mrPage.IsMasterPage())
+    {
+        SfxStyleSheet* const pStyleSheet = mrPage.getSdrPageProperties().GetStyleSheet();
+        assert(bool(pStyleSheet)); // who took away my stylesheet?
+        SfxItemSet& rItemSet = pStyleSheet->GetItemSet();
+        rItemSet.ClearItem(XATTR_FILLBITMAP);
+        if (mbHasFillBitmap)
+            rItemSet.ClearItem(XATTR_FILLSTYLE);
+    }
+    else
+    {
+        SdrPageProperties &rPageProps = mrPage.getSdrPageProperties();
+        rPageProps.ClearItem(XATTR_FILLBITMAP);
+        if (mbHasFillBitmap)
+            rPageProps.ClearItem(XATTR_FILLSTYLE);
+    }
+}
+
+void SdrUndoDelPage::restoreFillBitmap()
+{
+    if (mrPage.IsMasterPage())
+    {
+        SfxStyleSheet* const pStyleSheet = mrPage.getSdrPageProperties().GetStyleSheet();
+        assert(bool(pStyleSheet)); // who took away my stylesheet?
+        SfxItemSet& rItemSet = pStyleSheet->GetItemSet();
+        rItemSet.Put(*mpFillBitmapItem);
+        if (mbHasFillBitmap)
+            rItemSet.Put(XFillStyleItem(css::drawing::FillStyle_BITMAP));
+    }
+    else
+    {
+        SdrPageProperties &rPageProps = mrPage.getSdrPageProperties();
+        rPageProps.PutItem(*mpFillBitmapItem);
+        if (mbHasFillBitmap)
+            rPageProps.PutItem(XFillStyleItem(css::drawing::FillStyle_BITMAP));
+    }
+}
+
 
 void SdrUndoNewPage::Undo()
 {