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From dongjun zong <zongdj...@gmail.com>
Subject Re: Is this a UNO API bug?
Date Wed, 22 Aug 2012 07:30:45 GMT
You mentioned force update, do you mean use refresh() method ? I have tried
by below code, still can't work.

public void createPageNumber(XComponent component) {
        XMultiServiceFactory sevriceFactory = (XMultiServiceFactory)
UnoRuntime.queryInterface(XMultiServiceFactory.class, component);
        XTextField pageNumberFiled;
        try {
            pageNumberFiled =
(XTextField)UnoRuntime.queryInterface(XTextField.class,
sevriceFactory.createInstance("com.sun.star.text.textfield.PageNumber"));
            XPropertySet props =
(XPropertySet)UnoRuntime.queryInterface(XPropertySet.class,
pageNumberFiled);
            props.setPropertyValue("NumberingType",
NumberingType.ARABIC);//Set page number display as Arabic
            props.setPropertyValue("SubType", PageNumberType.CURRENT);



 document.getText().insertTextContent(document.getText().getEnd(),
                     pageNumberFiled, true);
             XTextFieldsSupplier fieldsSupplier =
UnoRuntime.queryInterface(XTextFieldsSupplier.class, document);
             XEnumerationAccess xEnumeratedFields =
fieldsSupplier.getTextFields();

            XRefreshable refeshable =
UnoRuntime.queryInterface(XRefreshable.class, xEnumeratedFields);
            refeshable.refresh();



//             try {
//                Thread.sleep(1000);
//            } catch (InterruptedException e) {
//                e.printStackTrace();
//            }

             System.out.println(document.getText().getString());

        } catch (com.sun.star.uno.Exception e) {
            e.printStackTrace();
        }

2012/8/22 Andrew Douglas Pitonyak <andrew@pitonyak.org>

>
> On 08/21/2012 09:08 PM, dongjun zong wrote:
>
>> Andrew,
>>   I think you are right, I add a sleep time after insert page number
>> field before getText, the page number can get correct.
>> But I think it's a bug for page number update issue.
>>
>
> Have you tried forcing an update? If so, then you won't need to wait.
>
> I expect that an update may be a time consuming operation (say if you
> insert at page number 400, and it must refresh from the start). I once saw
> a problem where a document would open, but the initial page numbers were
> wrong. It took a while for the page numbers to be updated after the
> document loaded. The final solution was to issue a full refresh, which took
> time, but made it happen. So, the trade off was to allow the user to
> immediately see and edit the document rather than forcing them to wait for
> the refresh to occur on load. With a large document, this can take time.
>
> My guess is that it takes significantly more time to create and insert a
> field than to trigger the update process. When the API is used to insert,
> we have no context on the operation so it seems reasonable to not make an
> immediate update before return. If the update process takes 1000 times
> longer to occur (probably depends on document size and other factors,
> depending on what is updated), then if I want to insert 100 fields, what
> might have taken a fraction of a second may now take minutes.
>
> Commands triggered from the GUI can make the reasonable assumption that
> the user is not likely to perform that task a 100 times, and that a user is
> sitting right there and probably desires an immediate response to the
> command, so then the triggered code (a dispatch) includes the update task
> as part of the process.
>
> If you think that not updating the single field immediately is a bug, you
> should try inserting a Table Of Contents (TOC).
>
> So, although you are certain that it is a bug, and you may be right, I
> might call it a design decision that tends to make the typical user
> experience more performant; which is the usual case..... but this is mostly
> speculation on my part.
>
>
>> Oliver, I have tired again, on my computer, if don't add sleep time, it
>> has problem for exist more than 2 page sample fie. You can try this sample,
>> add a page nubmer at end of this document. pls get this sample from
>> attachement.
>>
>>
>>
>> 2012/8/21 Andrew Douglas Pitonyak <andrew@pitonyak.org <mailto:
>> andrew@pitonyak.org>>
>>
>>
>>     My expectation is that this is not a bug.
>>
>>     I think that this is probably a timing problem based on the speed
>>     of the computer, the size of the document, how busy your CPU is,
>>     etc. If you do not have a number, then the values have probably
>>     not updated yet. Remember that the data model has no idea what
>>     page number it really is. This value must be updated by the view
>>     model / current controller (or something similar). If you have a
>>     value, then it just so happens that the values updated
>>     immediately. If you insert the value using the GUI, that code is
>>     smart enough to then trigger the update before it returns.
>>
>>
>>     On 08/21/2012 03:23 AM, dongjun zong wrote:
>>
>>         The strange thing is this API can works fine for doc sample
>>         file. I guess
>>         this is a bug.
>>
>>         2012/8/21 Andrew Douglas Pitonyak <andrew@pitonyak.org
>>         <mailto:andrew@pitonyak.org>>
>>
>>
>>             OK, I had to  look...
>>
>>             For a text field, see if you can call update. This may not
>>             work if the
>>             document has not finished repaginating. I have heard of
>>             cases where a
>>             document had not finished doing that before someone tried
>>             to do stuff to
>>             it. The solution was to tell the document to full refresh
>>             (probably using a
>>             dispatch).
>>
>>
>>
>>             On 08/21/2012 02:30 AM, Andrew Douglas Pitonyak wrote:
>>
>>                 Did you successfully insert the text field? If yes,
>>                 then after you insert
>>                 a text field, it has probably not yet refreshed its
>>                 value. Off hand, I
>>                 don't remember exactly what you need to refresh
>>                 first.... I would need to
>>                 look it up and I really need to run but figured it
>>                 might help you a bit and
>>                 you can look for the various refresh items (I think
>>                 that you can refresh
>>                 each index and for fields I think there may be a
>>                 single master field
>>                 refresh but I don't remember... have not done it in a
>>                 long time.).
>>
>>                 On 08/20/2012 03:32 AM, dongjun zong wrote:
>>
>>                     Hi All,
>>                          Using UNO API I do below operation.
>>                     1.Launch a odt document,
>>                     2.Create a page number field and insert into this
>>                     docment
>>                     3.Get the document text
>>
>>                     But in the step3, page number is not contained in
>>                     the get text. But if I
>>                     launch a doc document, I can get the page number
>>                     in step 3. I think this
>>                     is
>>                     a UNO API bug, can some body help confirm? Below
>>                     is my main code pieces.
>>
>>                     XMultiServiceFactory sevriceFactory =
>>                     (XMultiServiceFactory)
>>                     UnoRuntime.queryInterface(****
>> XMultiServiceFactory.class,
>>                     document);
>>                               XTextField  pageNumberFiled =
>>                     (XTextField)UnoRuntime.****
>> queryInterface(XTextField.****class,
>>                     sevriceFactory.createInstance(****"com.sun.star.text.
>> **textfield.**PageNumber"));
>>
>>
>>                               XPropertySet props =
>>                     (XPropertySet)UnoRuntime.****
>> queryInterface(XPropertySet.****class,
>>                     pageNumberFiled);
>>
>>  props.setPropertyValue("****NumberingType", 4);//Set
>>                     page number
>>                     display as Arabic
>>
>>                               XTextCursor xTextCursor =
>>                     document.getText().**
>>                     createTextCursor();
>>                               xTextCursor.gotoEnd(false);
>>
>>                     document.getText().****insertTextContent(document.***
>> *getText().getEnd(),
>>                     pageNumberFiled, true);
>>
>>
>>                               String documentString =
>>                     document.getText().getString()****;
>>                               System.out.println(****documentString);
>>
>>
>>             --
>>             Andrew Pitonyak
>>             My Macro Document:
>>             http://www.pitonyak.org/****AndrewMacro.odt<http://www.pitonyak.org/**AndrewMacro.odt>
>> <http://www.**pitonyak.org/AndrewMacro.odt<http://www.pitonyak.org/AndrewMacro.odt>
>> >
>>             Info: http://www.pitonyak.org/oo.php
>>
>>
>>
>>     --     Andrew Pitonyak
>>     My Macro Document: http://www.pitonyak.org/**AndrewMacro.odt<http://www.pitonyak.org/AndrewMacro.odt>
>>     Info: http://www.pitonyak.org/oo.php
>>
>>
>>
> --
> Andrew Pitonyak
> My Macro Document: http://www.pitonyak.org/**AndrewMacro.odt<http://www.pitonyak.org/AndrewMacro.odt>
> Info:  http://www.pitonyak.org/oo.php
>
>

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