Hi Matthias,

On 21.08.2022 16:22, Matthias Seidel wrote:
I almost forgot to answer...
:)
This is great work (although I only understand a bit of it).

Could this also work with Object REXX from OS/2 [1]?

If there was an OS/2 version of ooRexx and someone compiled BSF4ooRexx.cc for 
OS/2, then yes.

Background: ooRexx ("open object Rexx") is based on IBM's source code for Object REXX and got released by the non-profit "Rexx Language Association"( cf. <https://www.RexxLA.org>) under the name "open object Rexx (ooRexx)". For more than 15 years ooRexx got developed further, the kernel got rewritten and made portable, 32- and 64-bit versions for Windows, Apple and Linux have been made available.

"BSF4ooRexx" is a library that I have been developing for more than 20 years which establishes the ooRexx-Java bridge and available for all the aforementioned platforms. The major motivation was to not only teach BA students from zero to oo-programming within a single semester (four months, four hour weekly lecture) but to allow them to use all of Java (class libraries) as if they were ooRexx (class libraries). Among other things it takes advantage of the message paradigm (decoupling the concepts from the implementations).

As AOO/OOo has a Java interface and a Java based scripting framework it was possible to make ooRexx for the BA students available such that they not only learn how to program MS Office, but in the same semester how to do all of that in a portable, open-source manner using AOO/OOo.

If the OS/2 community would port ooRexx 5.0 and BSF4ooRexx.cc to OS/2 it could immediately take advantage of the infrastructure and run those ooRexx samples that I posted unchanged.

HTH,

---rony

P.S.: The idea of BSF4ooRexx and the first implementations came out of OS/2. But that is another story ... ;)




[1] http://www.edm2.com/index.php/IBM_Object_REXX_for_OS/2

Am 04.08.22 um 14:07 schrieb Rony G. Flatscher:
This is the first of a total of four postings with the intention to
demonstrate how to realize the same functionality of the posted OLE
samples without OLE and in a portable way (running unchanged on
Windows, Linux and Apple).

These are samples in the ooRexx scripting language, which usually can
be easily adapted to other languages by replacing the tilde (~), the
ooRexx message operator, with a dot (.).

Also, these solutions will use queryInterface() such that one can see
for other programming languages that need to employ queryInterface()
what the interface names are. The ooRexx solution (actually the
ooRexx-Java bridge BSF4ooRexx) takes advantage of the available
message paradigm and allows one to merely send the (unqualified)
interface name to an UNO object (instead of coding the entire
queryInterface() statement). The fully qualified interface name can
always be looked up quickly from the AOO index for the letter "X":
<https://www.openoffice.org/api/docs/common/ref/index-files/index-24.html>.

Here the portable, OLE-less solution as a follow-up to the matching
posting (see underneath):

/**********************************************************************
      swriter_table.rxo: using UNO.CLS (i.e. Java UNO under the hood)
with ooRexx

      Links:<https://OpenOffice.org>
<https://wiki.openoffice.org/wiki/Documentation/DevGuide/ProUNO/Bridge/Automation_Bridge>
              <https://www.pitonyak.org/oo.php>
<https://www.openoffice.org/udk/common/man/spec/ole_bridge.html>

      This is the ooRexx version (which includes corrections) of the
VBScript
      "A Quick Tour" example from the AOO (Apache OpenOffice) DevGuide,
chapter
      "Automation_Bridge" documentation.

      Using UNO.CLS create a new swriter document, a TextTable, a
TextFrame, paragraphs
      and apply various formattings.
***********************************************************************/

       -- Create the Desktop
       xDesktop=uno.createDesktop()        -- bootstrap & get access to
XDesktop
       xcl=xDesktop~XComponentLoader       -- get XComponentLoader
interface

       -- Open a new empty writer document
       uri="private:factory/swriter"       -- new swriter document
       objDocument=xcl~loadComponentFromURL(uri,"_blank",0,.uno~noProps)

       -- Create a text object
       objText= objDocument~XTextDocument~getText

       -- Create a cursor object
       objCursor= objText~createTextCursor

       -- Inserting some Text
       vbLf = "0a"x    -- line-feed character
       objText~insertString( objCursor, "The first line in the newly
created text document."vbLf, .false)

       -- Inserting a second line
       objText~insertString( objCursor, "Now we-- re in the second
line", .false)

       -- query interface XMultiServiceFactory
       objDocument = objDocument~XMultiServiceFactory

       -- Create instance of a text table with 4 columns and 4 rows
       objTable= objDocument~createInstance(
"com.sun.star.text.TextTable")~XTextTable
       objTable~initialize( 4, 4 )

       -- Insert the table
       objText~insertTextContent( objCursor, objTable, .false)

       -- Get first row
       objRows= objTable~getRows
       objRow= objRows~getByIndex( 0)

       -- Set the table background color
       objTable~XPropertySet~setPropertyValue( "BackTransparent", .false)
       objTable~XPropertySet~setPropertyValue( "BackColor", 13421823)

       -- Set a different background color for the first row
       objRow~XPropertySet~setPropertyValue( "BackTransparent", .false)
       objRow~XPropertySet~setPropertyValue( "BackColor", 6710932)

       -- Fill the first table row
       call insertIntoCell "A1","FirstColumn", objTable --
insertIntoCell is a helper function, see below
       call insertIntoCell "B1","SecondColumn", objTable
       call insertIntoCell "C1","ThirdColumn", objTable
       call insertIntoCell "D1","SUM", objTable

       objTable~getCellByName("A2")~setValue( 22.5     )
       objTable~getCellByName("B2")~setValue( 5615.3   )
       objTable~getCellByName("C2")~setValue( -2315.7  )
       objTable~getCellByName("D2")~setFormula( "=sum <A2>+<B2>+<C2>"  )

       objTable~getCellByName("A3")~setValue( 21.5     )
       objTable~getCellByName("B3")~setValue( 615.3    )
       objTable~getCellByName("C3")~setValue( -315.7   )
       objTable~getCellByName("D3")~setFormula( "sum <A3>+<B3>+<C3>" )

       objTable~getCellByName("A4")~setValue( 121.5    )
       objTable~getCellByName("B4")~setValue( -615.3   )
       objTable~getCellByName("C4")~setValue( 415.7    )
       objTable~getCellByName("D4")~setFormula( "sum <A4>+<B4>+<C4>" )

       range=objTable~XCellRange~getCellRangeByName("A2:D4")
       range~XPropertySet~setPropertyValue("NumberFormat",
box("short",4))   -- set number format
       -- use ParaAdjust: com.sun.star.style.ParagraphAdjust.RIGHT
       right=.uno_enum~new("com.sun.star.style.ParagraphAdjust")~right
       range~XPropertySet~setPropertyValue("ParaAdjust", right)  --
align right

       -- Change the CharColor and add a Shadow
       objCursor~XPropertySet~setPropertyValue( "CharColor", 255)
       objCursor~XPropertySet~setPropertyValue( "CharShadowed", .true)

       -- Create a paragraph break
       -- The second argument is a
com::sun::star::text::ControlCharacter::PARAGRAPH_BREAK constant
       objText~insertControlCharacter( objCursor, 0 , .false)

       -- Inserting colored Text.
       objText~insertString( objCursor, " This is a colored Text - blue
with shadow"vbLf, .false)

       -- Create a paragraph break ( ControlCharacter::PARAGRAPH_BREAK).
       objText~insertControlCharacter( objCursor, 0, .false)

       -- Create a TextFrame~
       objTextFrame=
objDocument~createInstance("com.sun.star.text.TextFrame")~XTextFrame

       -- Create a Size struct~
       objSize = .bsf~new("com.sun.star.awt.Size")
       objSize~Width= 15000
       objSize~Height= 400
       objTextFrame~XShape~setSize( objSize)

       --  TextContentAnchorType.AS_CHARACTER = 1
       objTextFrame~XPropertySet~setPropertyValue( "AnchorType", 1)

       -- insert the frame
       objText~insertTextContent( objCursor, objTextFrame, .false)

       -- Get the text object of the frame
       objFrameText= objTextFrame~getText

       -- Create a cursor object
       objFrameTextCursor= objFrameText~createTextCursor

       -- Inserting some Text
       objFrameText~insertString( objFrameTextCursor, "The first line
in the newly created text frame.", -
                                  .false)
       objFrameText~insertString( objFrameTextCursor, -
                vbLf"With this second line the height of the frame
raises.", .false)

       -- Create a paragraph break
       -- The second argument is a
com::sun::star::text::ControlCharacter::PARAGRAPH_BREAK constant
       objFrameText~insertControlCharacter( objCursor, 0 , .false)

       -- Change the CharColor and remove the Shadow
       objCursor~XPropertySet~setPropertyValue( "CharColor", 65536)
       objCursor~XPropertySet~setPropertyValue( "CharShadowed", .false)

       -- Insert another string
       objText~insertString( objCursor, " That-- s all for now !!",
.false)

    ::requires UNO.CLS   -- get UNO support

    ::routine insertIntoCell
       use arg strCellName, strText, objTable

       objCellText= objTable~getCellByName( strCellName)~XText
       objCellCursor= objCellText~createTextCursor
       objCellCursor~XPropertySet~setPropertyValue( "CharColor",16777215)
       objCellText~insertString( objCellCursor, strText, .false)

If there are any questions, please ask them.

---rony


On 24.06.2022 12:57, Rony G. Flatscher wrote:
Having looked around some nutshell OLE samples to port to ooRexx I
stumbled over
<https://wiki.openoffice.org/wiki/Documentation/DevGuide/ProUNO/Bridge/Automation_Bridge>
which depicts a VBScript example.

There are the following changes in the ooRexx code:

  * the "=sum" formula now has the cells and the + operator to add
them up,
  * the TextTable numbers are formatted to #,###.00 and right adjusted.

Ad ooRexx: I use it to teach BA students programming from zero to
Windows to Java in a four hour lecture in a semester (four months).
The Java part includes the knowledge to apply ooRexx via the UNO Java
bindings (one can use ooRexx to interact with Java objects, such that
the students do not need to know Java, they just need to be able to
read Java documentation).

ooRexx implements the message paradigm: a value (an object, an
instance) is conceptually like a living thing that understands
messages one sends to it, which causes the value to look for a method
by the same name (supplying arguments, if any) which it invokes and
returns any return value if any. The message operator is the tilde
(~), the receiver is on the left hand side, the message name on the
right hand side. (The short paper at <https://epub.wu.ac.at/8118/>
introduces ooRexx briefly in ten pages.)

Usually one can turn VB code into ooRexx by replacing dots with a
tilde, however it also works the other way round by replacing tildes
with dots . :)

Here the transcription:

/**********************************************************************
      AOO_swriter_table.rex using OLE (object linking and embedding)
with ooRexx

      Links: <https://OpenOffice.org>
<https://wiki.openoffice.org/wiki/Documentation/DevGuide/ProUNO/Bridge/Automation_Bridge>

<https://www.pitonyak.org/oo.php>
<https://www.openoffice.org/udk/common/man/spec/ole_bridge.html>

      This is the ooRexx version (which includes corrections) of the
VBScript
      "A Quick Tour" example from the AOO (Apache OpenOffice)
DevGuide, chapter
      "Automation_Bridge" documentation.

      Using OLE create a new swriter document, a TextTable, a
TextFrame, paragraphs
      and apply various formatings.
***********************************************************************/

       -- The service manager is always the starting point
       -- If there is no office running then an office is started up
       objServiceManager= .OleObject~new("com.sun.star.ServiceManager")

       -- Create the Desktop
       objDesktop=
objServiceManager~createInstance("com.sun.star.frame.Desktop")

       -- Open a new empty writer document
       args=.array~new
       objDocument=
objDesktop~loadComponentFromURL("private:factory/swriter", "_blank",
0, args)

       -- Create a text object
       objText= objDocument~getText

       -- Create a cursor object
       objCursor= objText~createTextCursor

       -- Inserting some Text
       vbLf = "0a"x    -- line-feed character
       objText~insertString( objCursor, "The first line in the newly
created text document."vbLf,
    .false)

       -- Inserting a second line
       objText~insertString( objCursor, "Now we-- re in the second
line", .false)

       -- Create instance of a text table with 4 columns and 4 rows
       objTable= objDocument~createInstance(
"com.sun.star.text.TextTable")
       objTable~initialize( 4, 4 )

       -- Insert the table
       objText~insertTextContent( objCursor, objTable, .false)

       -- Get first row
       objRows= objTable~getRows
       objRow= objRows~getByIndex( 0)

       -- Set the table background color
       objTable~setPropertyValue( "BackTransparent", .false)
       objTable~setPropertyValue( "BackColor", 13421823)

       -- Set a different background color for the first row
       objRow~setPropertyValue( "BackTransparent", .false)
       objRow~setPropertyValue( "BackColor", 6710932)

       -- Fill the first table row
       call insertIntoCell "A1","FirstColumn", objTable --
insertIntoCell is a helper function, see
    below
       call insertIntoCell "B1","SecondColumn", objTable
       call insertIntoCell "C1","ThirdColumn", objTable
       call insertIntoCell "D1","SUM", objTable

       objTable~getCellByName("A2")~setValue( 22.5     )
       objTable~getCellByName("B2")~setValue( 5615.3   )
       objTable~getCellByName("C2")~setValue( -2315.7  )
       objTable~getCellByName("D2")~setFormula( "=sum <A2>+<B2>+<C2>"  )

       objTable~getCellByName("A3")~setValue( 21.5     )
       objTable~getCellByName("B3")~setValue( 615.3    )
       objTable~getCellByName("C3")~setValue( -315.7   )
       objTable~getCellByName("D3")~setFormula( "sum <A3>+<B3>+<C3>" )

       objTable~getCellByName("A4")~setValue( 121.5    )
       objTable~getCellByName("B4")~setValue( -615.3   )
       objTable~getCellByName("C4")~setValue( 415.7    )
       objTable~getCellByName("D4")~setFormula( "sum <A4>+<B4>+<C4>" )

       range=objTable~getCellRangeByName("A2:D4")
       range~setPropertyValue("NumberFormat", 4)  -- set number format
       -- use ParaAdjust: com.sun.star.style.ParagraphAdjust.RIGHT
       range~setPropertyValue("ParaAdjust", 1)    -- align right

       -- Change the CharColor and add a Shadow
       objCursor~setPropertyValue( "CharColor", 255)
       objCursor~setPropertyValue( "CharShadowed", .true)

       -- Create a paragraph break
       -- The second argument is a
com::sun::star::text::ControlCharacter::PARAGRAPH_BREAK constant
       objText~insertControlCharacter( objCursor, 0 , .false)

       -- Inserting colored Text.
       objText~insertString( objCursor, " This is a colored Text -
blue with shadow"vbLf, .false)

       -- Create a paragraph break ( ControlCharacter::PARAGRAPH_BREAK).
       objText~insertControlCharacter( objCursor, 0, .false)

       -- Create a TextFrame~
       objTextFrame=
objDocument~createInstance("com.sun.star.text.TextFrame")

       -- Create a Size struct~
       objSize =
objServiceManager~Bridge_GetStruct("com.sun.star.awt.Size")
       objSize~Width= 15000
       objSize~Height= 400
       objTextFrame~setSize( objSize)

       --  TextContentAnchorType.AS_CHARACTER = 1
       objTextFrame~setPropertyValue( "AnchorType", 1)

       -- insert the frame
       objText~insertTextContent( objCursor, objTextFrame, .false)

       -- Get the text object of the frame
       objFrameText= objTextFrame~getText

       -- Create a cursor object
       objFrameTextCursor= objFrameText~createTextCursor

       -- Inserting some Text
       objFrameText~insertString( objFrameTextCursor, "The first line
in the newly created text
    frame.", -
                                  .false)
       objFrameText~insertString( objFrameTextCursor, -
                vbLf"With this second line the height of the frame
raises.", .false)

       -- Create a paragraph break
       -- The second argument is a
com::sun::star::text::ControlCharacter::PARAGRAPH_BREAK constant
       objFrameText~insertControlCharacter( objCursor, 0 , .false)

       -- Change the CharColor and remove the Shadow
       objCursor~setPropertyValue( "CharColor", 65536)
       objCursor~setPropertyValue( "CharShadowed", .false)

       -- Insert another string
       objText~insertString( objCursor, " That-- s all for now !!",
.false)

    ::routine insertIntoCell
       use arg strCellName, strText, objTable

       objCellText= objTable~getCellByName( strCellName)
       objCellCursor= objCellText~createTextCursor
       objCellCursor~setPropertyValue( "CharColor",16777215)
       objCellText~insertString( objCellCursor, strText, .false)

---rony

P.S.: As I have not found too many self-contained OLE nutshell
samples I came up with additional examples for swriter, scalc and
simpress which I will post one by one to ease locating them via
search engines. Although they will be in the rather unknown ooRexx
language it will be simple to translate them to VBS or other
programming languages that support OLE.

--
--
__________________________________________________________________________________

Prof. Dr. Rony G. Flatscher
Department Wirtschaftsinformatik und Operations Management
Institut für Wirtschaftsinformatik und Gesellschaft
D2c 2.086
WU Wien
Welthandelsplatz 1
A-1020  Wien/Vienna, Austria/Europe

http://www.wu.ac.at
__________________________________________________________________________________






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