screenshotannotation: Trim the textfield, add scrollbar

to prevent it from growing too large and thus distorting the dialog

Change-Id: Iaa27d3085ec314246565cae79ab7d627a94a3bff
Reviewed-on: https://gerrit.libreoffice.org/30898Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

cui/source/dialogs/screenshotannotationdlg.cxx

@@ -262,8 +262,9 @@ ScreenshotAnnotationDlg_Impl::ScreenshotAnnotationDlg_Impl(
     // copying content to clipboard is allowed
     if (mpText)
     {
+        mpText->set_width_request(400);
+        mpText->set_height_request( mpText->GetTextHeight() * 10 );
         OUString aHelpId = OStringToOUString( mrParentDialog.GetHelpId(), RTL_TEXTENCODING_UTF8 );
-
         Size aSizeCm = mrParentDialog.PixelToLogic( maParentDialogSize, MapUnit::MapCM );
         maMainMarkupText = lcl_ParagraphWithImage( aHelpId, aSizeCm );
         mpText->SetText( maMainMarkupText );

cui/uiconfig/ui/screenshotannotationdialog.ui

@@ -100,11 +100,20 @@
           </packing>
         </child>
         <child>
-          <object class="GtkTextView" id="text">
-            <property name="name">text</property>
-            <property name="height_request">80</property>
+          <object class="GtkScrolledWindow" id="scrolledwindow1">
             <property name="visible">True</property>
             <property name="can_focus">True</property>
+            <property name="hexpand">True</property>
+            <property name="vexpand">True</property>
+            <property name="shadow_type">in</property>
+            <child>
+              <object class="GtkTextView" id="text:border">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="hexpand">True</property>
+                <property name="vexpand">True</property>
+              </object>
+            </child>
           </object>
           <packing>
             <property name="expand">False</property>