tdf#113807 Enable clicking on pathfile-names in "Links" dialog

Improved:
* Very long pathfilename now do not overwrite its label on the dialog
* Full pathfilename could be clicked to show attachment/image
with default viewer.

Change-Id: I6e5398ed2a2013aae0d9b51a719e694b3206dcce
Reviewed-on: https://gerrit.libreoffice.org/44689Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

cui/source/dialogs/linkdlg.cxx

@@ -243,6 +243,7 @@ IMPL_LINK( SvBaseLinksDlg, LinksSelectHdl, SvTreeListBox *, pSvTabListBox, void
         sfx2::LinkManager::GetDisplayNames( pLink, &sType, &aFileName, pLinkNm, pFilter );
         aFileName = INetURLObject::decode(aFileName, INetURLObject::DecodeMechanism::Unambiguous);
         m_pFtFullFileName->SetText( aFileName );
+        m_pFtFullFileName->SetURL( aFileName );
         m_pFtFullSourceName->SetText( sLink );
         m_pFtFullTypeName->SetText( sType );
     }

cui/source/inc/linkdlg.hxx

@@ -26,6 +26,7 @@
 #include <vcl/edit.hxx>
 #include <vcl/lstbox.hxx>
 #include <vcl/idle.hxx>
+#include <vcl/fixedhyper.hxx>
 
 #include <svtools/svmedit.hxx>
 #include <svtools/svtabbx.hxx>
@@ -45,7 +46,7 @@ class SvBaseLinksDlg : public ModalDialog
     using Window::SetType;
 
     VclPtr<SvTabListBox> m_pTbLinks;
-    VclPtr<FixedText> m_pFtFullFileName;
+    VclPtr<FixedHyperlink> m_pFtFullFileName;
     VclPtr<FixedText> m_pFtFullSourceName;
     VclPtr<FixedText> m_pFtFullTypeName;
     VclPtr<RadioButton> m_pRbAutomatic;

cui/uiconfig/ui/baselinksdialog.ui

@@ -297,16 +297,38 @@
                   </packing>
                 </child>
                 <child>
-                  <object class="GtkLabel" id="FULL_FILE_NAME">
+                  <object class="GtkBox" id="box_hexpand">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
-                    <property name="xalign">0</property>
+                    <property name="hexpand">True</property>
+                    <property name="orientation">vertical</property>
+                    <property name="spacing">6</property>
+                    <child>
+                      <object class="GtkLinkButton" id="FULL_FILE_NAME">
+                        <property name="label"></property>
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="receives_default">True</property>
+                        <property name="has_tooltip">True</property>
+                        <property name="relief">none</property>
+                        <property name="focus_on_click">False</property>
+                        <property name="xalign">0</property>
+                        <property name="uri"></property>
+                      </object>
+                      <packing>
+                        <property name="width">1</property>
+                        <property name="height">1</property>
+                      </packing>
+                    </child>
                   </object>
                   <packing>
                     <property name="left_attach">1</property>
                     <property name="top_attach">0</property>
                     <property name="width">1</property>
                     <property name="height">1</property>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
                   </packing>
                 </child>
                 <child>