NetNews Usenet Archive 1992 #26/NN_1992_26.iso/spool/comp/sys/mac/hypercar/4098

Internet Message Format | 1992-11-06 | 3.1 KB

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From: [e-mail] (Victor Der-Thanq Chen)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: How to get rid of the clicktext
Message-ID: <[e-mail]>
Date: 6 Nov 92 03:44:00 GMT
Article-I.D.: oregon.5NOV199219443992
References: <[e-mail]> <[e-mail]>
Sender: [e-mail]
Organization: University of Oregon
Lines: 62
News-Software: VAX/VMS VNEWS 1.41

In article <[e-mail]>, [e-mail] writes...
>In article <[e-mail]>,
>[e-mail] (Victor Der-Thanq Chen) writes:
>> I am doing something using the clicktext in a field.  In the openfield handler
>> I check the value of the clicktext.  If it is empty, do nothing, otherwise do
>> something.
>>
>> The problem I have is that when the sencond pass of using the clicktext, even
>> thoug I do not click on anything, the clicktext still returns the previously
>> clicked text.
>
>It is absolutely true that the value The ClickText is persistent.
>But this just means you probably should not check that way. A mouseUp handler
>will have the virtue that it won't be called unless there was, at
>least, a click. Then, if the click was on a word, there will be
>clickText; if not, the clickText will be empty. Your difficulty
>is caused by the fact that you are checking in an openField
>handler.
>
>If you *must* do it the way you are doing, use "click at the loc
>of me" to clear the ClickText. -- matt

I don't think click at the field itself will work.  I have a field-ful of text.
Clicking at the loc of the field will end up clicking at some other text.

Let me address my question more specifically.  Here is the script in a
background field:

on openfield
  if "Page" is in the clicktext
  then
    visual effect dissolve
    go card word 2 of the clicktext
  else
    doUnderline
  end if
end openfield

You may consider my stack as an electronic book.  Every card has a page number.
This particular field contains all the text in the stack.  You may see it as
a whole text.  In the field, I put page numbers among the text so that the user
knows which part of the text belongs to which page.

This field does two things.  If the user clicks at the page number, he/she will
be able to go to that page.  If the user select something (e.g. hold down the
mouse and drag), the selected text will be hilighted (underline).

Apparently, I cannot use the mouseup handler, because I want the users to be
able to select something.

It works just fine to go to a page.  But if I come back from that page to the
"whole text" page and click on, say, the arrows of this scrolling field, the
openfield message got sent and HC will take me back to the page I previously
was on, because the clicktext was not cleared.

So, given the environment, can any one come up with a neat solution?

Thanks in advance.

Victor Chen

[e-mail]