SwTextBoxHelper::findTextBox: add an UNO version

Export filters don't have access to SwXShape, and it's probably good to
have that way.

Change-Id: I039bafec10d2fde7c7acdcfad5b07068a2a519f1

sw/inc/textboxhelper.hxx

@@ -12,10 +12,13 @@
 
 #include <list>
 
+#include <com/sun/star/drawing/XShape.hpp>
 #include <com/sun/star/uno/Any.h>
 #include <com/sun/star/uno/Type.h>
 #include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
 
+#include <swdllapi.h>
+
 class SdrPage;
 class SwFrmFmt;
 class SwDoc;
@@ -27,7 +30,7 @@ class Rectangle;
  * This class provides helper methods to create, query and maintain such
  * TextBoxes.
  */
-class SwTextBoxHelper
+class SW_DLLPUBLIC SwTextBoxHelper
 {
 public:
     /// Create a TextBox for a shape.
@@ -44,6 +47,7 @@ public:
 
     /// If we have an associated TextFrame, then return that.
     static SwFrmFmt* findTextBox(SwFrmFmt* pShape);
+    static SwFrmFmt* findTextBox(css::uno::Reference<css::drawing::XShape> xShape);
     /// Return the textbox rectangle of a draw shape (in twips).
     static Rectangle getTextRectangle(SwFrmFmt* pShape, bool bAbsolute = true);
 

sw/source/core/doc/textboxhelper.cxx

@@ -15,6 +15,7 @@
 #include <docary.hxx>
 #include <unocoll.hxx>
 #include <unoframe.hxx>
+#include <unodraw.hxx>
 #include <unotextbodyhf.hxx>
 #include <unotextrange.hxx>
 #include <unomid.h>
@@ -156,6 +157,15 @@ uno::Any SwTextBoxHelper::getByIndex(SdrPage* pPage, sal_Int32 nIndex, std::list
     return pRet ? uno::makeAny(uno::Reference<drawing::XShape>(pRet->getUnoShape(), uno::UNO_QUERY)) : uno::Any();
 }
 
+SwFrmFmt* SwTextBoxHelper::findTextBox(uno::Reference<drawing::XShape> xShape)
+{
+    SwXShape* pShape = dynamic_cast<SwXShape*>(xShape.get());
+    if (!pShape)
+        return 0;
+
+    return findTextBox(pShape->GetFrmFmt());
+}
+
 SwFrmFmt* SwTextBoxHelper::findTextBox(SwFrmFmt* pShape)
 {
     SwFrmFmt* pRet = 0;