Link DRAW and FLY format for faster textbox lookup

Currently we have to rebuild the list of text boxes for every
lookup. Instead of a managed set, or a per-document list etc.,
this introduces direct pointers between the corresponding
SwDrawFramFormat and SwFlyFrameFormat of a text box.

Change-Id: Iefba2d153d9d8b3f1185aa305e9f463a50e78f89

sw/inc/frmfmt.hxx

@@ -43,6 +43,7 @@ class SW_DLLPUBLIC SwFrameFormat: public SwFormat
     friend class SwPageDesc;    ///< Is allowed to call protected CTor.
     friend class ::sw::DocumentLayoutManager; ///< Is allowed to call protected CTor.
     friend class SwFrameFormats;     ///< Is allowed to update the list backref.
+    friend class SwTextBoxHelper;
 
     css::uno::WeakReference<css::uno::XInterface> m_wXObject;
 
@@ -52,6 +53,8 @@ class SW_DLLPUBLIC SwFrameFormat: public SwFormat
     // The assigned SwFrmFmt list.
     SwFrameFormats *m_ffList;
 
+    SwFrameFormat *m_pOtherTextBoxFormat;
+
     struct change_name
     {
         change_name(const OUString &rName) : mName(rName) {}
@@ -76,6 +79,9 @@ protected:
 
     virtual void Modify( const SfxPoolItem* pOld, const SfxPoolItem* pNewValue ) override;
 
+    SwFrameFormat* GetOtherTextBoxFormat() const { return m_pOtherTextBoxFormat; }
+    void SetOtherTextBoxFormat( SwFrameFormat *pFormat );
+
 public:
     virtual ~SwFrameFormat();
 

sw/source/core/doc/DocumentLayoutManager.cxx

@@ -510,6 +510,10 @@ SwFrameFormat *DocumentLayoutManager::CopyLayoutFormat(
         SwFormatContent aContent(pDestTextBox->GetContent().GetContentIdx()->GetNode().GetStartNode());
         aSet.Put(aContent);
         pDest->SetFormatAttr(aSet);
+
+        // Link FLY and DRAW formats, so it becomes a text box
+        pDest->SetOtherTextBoxFormat(pDestTextBox);
+        pDestTextBox->SetOtherTextBoxFormat(pDest);
     }
 
     return pDest;

sw/source/core/doc/textboxhelper.cxx

@@ -28,6 +28,7 @@
 #include <sortedobjs.hxx>
 #include <cntfrm.hxx>
 #include <fmtsrnd.hxx>
+#include <frmfmt.hxx>
 
 #include <editeng/unoprnms.hxx>
 #include <editeng/charrotateitem.hxx>
@@ -55,6 +56,18 @@ void SwTextBoxHelper::create(SwFrameFormat* pShape)
         uno::Reference<text::XTextContentAppend> xTextContentAppend(xTextDocument->getText(), uno::UNO_QUERY);
         xTextContentAppend->appendTextContent(xTextFrame, uno::Sequence<beans::PropertyValue>());
 
+        // Link FLY and DRAW formats, so it becomes a text box (needed for syncProperty calls).
+        uno::Reference<text::XTextFrame> xRealTextFrame(xTextFrame, uno::UNO_QUERY);
+        SwXTextFrame* pTextFrame = dynamic_cast<SwXTextFrame *>(xRealTextFrame.get());
+        assert(nullptr != pTextFrame);
+        SwFrameFormat* pFormat = pTextFrame->GetFrameFormat();
+
+        assert(nullptr != dynamic_cast<SwDrawFrameFormat*>(pShape));
+        assert(nullptr != dynamic_cast<SwFlyFrameFormat*>(pFormat));
+
+        pShape->SetOtherTextBoxFormat(pFormat);
+        pFormat->SetOtherTextBoxFormat(pShape);
+
         // Initialize properties.
         uno::Reference<beans::XPropertySet> xPropertySet(xTextFrame, uno::UNO_QUERY);
         uno::Any aEmptyBorder = uno::makeAny(table::BorderLine2());

sw/source/core/layout/atrfrm.cxx

@@ -2500,7 +2500,8 @@ SwFrameFormat::SwFrameFormat(
 :   SwFormat(rPool, pFormatNm, (pWhichRange ? pWhichRange : aFrameFormatSetRange), pDrvdFrame, nFormatWhich),
     m_wXObject(),
     maFillAttributes(),
-    m_ffList(nullptr)
+    m_ffList(nullptr),
+    m_pOtherTextBoxFormat(nullptr)
 {
 }
 
@@ -2513,7 +2514,8 @@ SwFrameFormat::SwFrameFormat(
 :   SwFormat(rPool, rFormatNm, (pWhichRange ? pWhichRange : aFrameFormatSetRange), pDrvdFrame, nFormatWhich),
     m_wXObject(),
     maFillAttributes(),
-    m_ffList(nullptr)
+    m_ffList(nullptr),
+    m_pOtherTextBoxFormat(nullptr)
 {
 }
 
@@ -2527,6 +2529,12 @@ SwFrameFormat::~SwFrameFormat()
             rAnchor.GetContentAnchor()->nNode.GetNode().RemoveAnchoredFly(this);
         }
     }
+
+    if( nullptr != m_pOtherTextBoxFormat )
+    {
+        m_pOtherTextBoxFormat->SetOtherTextBoxFormat( nullptr );
+        m_pOtherTextBoxFormat = nullptr;
+    }
 }
 
 void SwFrameFormat::SetName( const OUString& rNewName, bool bBroadcast )
@@ -2553,6 +2561,21 @@ void SwFrameFormat::SetName( const OUString& rNewName, bool bBroadcast )
         SwFormat::SetName( rNewName, bBroadcast );
 }
 
+void SwFrameFormat::SetOtherTextBoxFormat( SwFrameFormat *pFormat )
+{
+    if( nullptr != pFormat )
+    {
+        assert( (Which() == RES_DRAWFRMFMT && pFormat->Which() == RES_FLYFRMFMT)
+             || (Which() == RES_FLYFRMFMT && pFormat->Which() == RES_DRAWFRMFMT) );
+        assert( nullptr == m_pOtherTextBoxFormat );
+    }
+    else
+    {
+        assert( nullptr != m_pOtherTextBoxFormat );
+    }
+    m_pOtherTextBoxFormat = pFormat;
+}
+
 bool SwFrameFormat::supportsFullDrawingLayerFillAttributeSet() const
 {
     return true;