tdf#80658 Calc stream Hlp page (part)

- Added contents to live data stream help page
- Used some of Vipul Gupta contents from attachement in ticket
- Still incomplete because the setup to work is non trivial

Change-Id: I02bf8178859ddce7ce28082388d21e31853dac4e
Reviewed-on: https://gerrit.libreoffice.org/c/help/+/128348
Tested-by: Jenkins
Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>

1 files changed, 34 insertions, 1 deletions

diff --git a/source/text/scalc/01/live_data_stream.xhp b/source/text/scalc/01/live_data_stream.xhp
index 5f44ab42ca..774ec4e0fc 100644
--- a/source/text/scalc/01/live_data_stream.xhp
+++ b/source/text/scalc/01/live_data_stream.xhp
@@ -35,9 +35,42 @@
     <paragraph id="par_id240920171003293400" role="paragraph"><ahelp hid="."><variable id="streams_desc">Create live data streams for spreadsheets.</variable></ahelp></paragraph>
   </section>
   <section id="howtoget">
-    <paragraph id="par_id240920171007389295" role="paragraph">Menu <menuitem>Data – Streams...</menuitem></paragraph>
+    <paragraph id="par_id240920171007389295" role="paragraph">Choose <menuitem>Data – Streams</menuitem></paragraph>
   </section>
   <embed href="text/shared/optionen/experimental.xhp#experimental"/>
   <embed href="text/shared/need_help.xhp#needhelp"/>
+  <paragraph role="paragraph" id="par_id221641995264796">Data streaming is the continuous flow of data generated by various sources. In %PRODUCTNAME Calc, data streams can be processed, stored, analyzed, and acted upon as it's generated in real-time.</paragraph>
+  <paragraph role="paragraph" id="par_id831641996045238">Some real-life examples of streaming data include use cases in every industry, including real-time stock trades, up-to-the-minute retail inventory management, social media feeds, multiplayer game interactions, and ride-sharing apps.</paragraph>
+
+  <h2 id="hd_id791641995257145">Source stream</h2>
+  <h3 id="hd_id931641998122172">URL</h3>
+  <paragraph role="paragraph" id="par_id31641995269740">URL of the source document in the local file system or internet.</paragraph>
+
+  <h3 id="hd_id811641996480534">Interpret stream data as</h3>
+  <list type="unordered">
+      <listitem>
+          <paragraph id="par_id591641996318461"  role="listitem"><emph>value1,value2,...,valueN, and fill into range</emph>:</paragraph>
+      </listitem>
+      <listitem>
+          <paragraph id="par_id441641996322078"  role="listitem"><emph>address,value</emph>:</paragraph>
+      </listitem>
+  </list>
+  <h3 id="hd_id241641998151807">Empty lines trigger UI refresh</h3>
+
+  <h2 id="hd_id341641995330350">When new data arrives</h2>
+  <paragraph role="paragraph" id="par_id731641995339462">There are three features of this option:</paragraph>
+  <list type="unordered">
+      <listitem>
+          <paragraph id="par_id471641995370002"  role="listitem"><emph>Move existing data down</emph>: the existing data is moved down in index and the empty space is filled by arriving data. In short, we deal in fix range of indexes. </paragraph>
+      </listitem>
+      <listitem>
+          <paragraph id="par_id841641995386510"  role="listitem"><emph>Move the range down</emph>: the arriving data is appended at the end of existing data and range of indexes to be processed is shifted.</paragraph>
+      </listitem>
+      <listitem>
+          <paragraph id="par_id1001641996559358"  role="listitem"><emph>Overwrite existing data</emph>: the arriving data overrides the existing data.</paragraph>
+      </listitem>
+  </list>
+  <h2 id="hd_id121641995404922">Maximal Amount of Rows</h2>
+  <paragraph role="paragraph" id="par_id961641995414472">Limit the maximum numbers of rows to a specified value or leave undefined, but limited to the %PRODUCTNAME Calc row limit.</paragraph>
 </body>
 </helpdocument>