tdf#103654: Make git hash clickable in the About dialog

This will help the QA team and make it easier to quickly see what is in a build.

Change-Id: Ibaa96ee7eac7c60781dddb88981e76afbc71d23f
Reviewed-on: https://gerrit.libreoffice.org/31808Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>

cui/source/dialogs/about.cxx

@@ -77,6 +77,7 @@ AboutDialog::AboutDialog(vcl::Window* pParent)
     m_aLocaleStr = get<FixedText>("locale")->GetText();
 
     m_pVersion->SetText(GetVersionString());
+    m_pVersion->SetURL("https://gerrit.libreoffice.org/gitweb?p=core.git;a=log;h=" + GetBuildId());
 
     OUString aCopyrightString = GetCopyrightString();
     m_pCopyrightText->SetText( aCopyrightString );

cui/source/inc/about.hxx

@@ -22,6 +22,7 @@
 #include <vcl/accel.hxx>
 #include <vcl/button.hxx>
 #include <vcl/fixed.hxx>
+#include <vcl/fixedhyper.hxx>
 #include <vcl/vclmedit.hxx>
 #include <sfx2/basedlgs.hxx>
 #include <vector>
@@ -34,7 +35,7 @@ private:
     BitmapEx           aBackgroundBitmap;
     BitmapEx           aLogoBitmap;
 
-    VclPtr<VclMultiLineEdit>    m_pVersion;
+    VclPtr<FixedHyperlink>      m_pVersion;
     VclPtr<FixedText>           m_pDescriptionText;
     VclPtr<FixedText>           m_pCopyrightText;
     VclPtr<FixedImage>          m_pLogoImage;

cui/uiconfig/ui/aboutdialog.ui

@@ -2,9 +2,6 @@
 <!-- Generated with glade 3.18.3 -->
 <interface>
   <requires lib="gtk+" version="3.0"/>
-  <object class="GtkTextBuffer" id="textbuffer1">
-    <property name="text" translatable="yes">Version: %ABOUTBOXPRODUCTVERSION%ABOUTBOXPRODUCTVERSIONSUFFIX</property>
-  </object>
   <object class="GtkDialog" id="AboutDialog">
     <property name="can_focus">False</property>
     <property name="border_width">6</property>
@@ -147,7 +144,7 @@
                       </packing>
                     </child>
                     <child>
-                      <object class="GtkTextView" id="version">
+                      <object class="GtkLinkButton" id="version">
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="hexpand">True</property>
@@ -155,7 +152,7 @@
                         <property name="wrap_mode">word</property>
                         <property name="justification">center</property>
                         <property name="cursor_visible">False</property>
-                        <property name="buffer">textbuffer1</property>
+                        <property name="label" translatable="yes">Version: %ABOUTBOXPRODUCTVERSION%ABOUTBOXPRODUCTVERSIONSUFFIX</property>
                       </object>
                       <packing>
                         <property name="left_attach">0</property>