2 questions

Rob Meijer robmeyer at hetnet.nl
Mon Feb 28 12:05:15 EST 2005


Frank and everybody
Thank you very much. I have read the topics, but being a recrute on the 
revolutionary field,
it still is too difficult fior me. Moreover RevDoc has a lack of good and 
practical examples,
so I have to find my way with trial and error.

Nevertheless I have 2 questions.
I builded a stack and a substack. The substack "frontpage" is larger than 
the mainstack:
I call the stack that opens "the mainstack". Right? The mainstack is called 
"pages".
On the frontpage there is a field "content", registering the name of each 
page, everytime
the frontpage is entered.The "frontpage" has a larger size than the cards 
in "pages".

To execute the registering of the pages, there is a handler called 
"fillfield" in the stackscript.
Because this handler has to become active when entering the frontpage, I 
put "send fillfield"
in the cardscript of "frontpage" with on opencard:
This handler does not react when entering the Frontpage.

The only way to get the handler active is to put "send fillfield" in a 
navigationbutton of the
pages.

How to call a handler in a substack?

Question 2.
In the stackscript I wrote:
function content
   return "field" &&quote&content&quote&& "of stack" &&quote&frontpage&quote
end content
returning: field "content" of stack "frontpage"

The number of lines in field  "content" = 89
but: put the number of lines of content()  puts 1
but: put the number of lines of field "content" of stack "frontpage"   puts 89

What did I do wrong with the function function.

Thanks
Rob

----------




At 14:44 28/2/2005, Frank D. Engel, Jr. wrote:
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>Rev allows you to work with multiple open stacks, and with stacks which 
>are not even open.
>
>The stack currently visible to the user does not have to be the one that 
>your script is currently working with.  Rev has the concept of a 
>"defaultStack", which is the stack your script works with when you do not 
>otherwise specify a stack, and some actions only work on the 
>defaultStack.  You can choose a defaultStack just by setting the 
>defaultStack property to the name of the stack you want to work with:
>
>set the defaultStack to "my data stack"
>
>
>If you want to remember the current defaultStack in order to return to it 
>after doing whatever you are trying to do:
>
>put the defaultStack into oldDefault
>set the defaultStack to "my data stack"
>
><...do stuff...>
>
>set the defaultStack to oldDefault
>
>
>Thus you can do anything with any of the other stacks that you can do with 
>the main stack(s).  There is no concept of a main stack for an 
>"application" or any such thing (Rev does not think of things on an 
>Application or Program level, only on a stack level), so all main stacks 
>are treated equal, and there are only somewhat minor differences for 
>substacks (additional stacks stored in the same file as a single main 
>stack; the script of the main stack is late in the message path of each of 
>its substacks).
>
>Under the "Topics" area of the Rev docs, look at "Main stacks, substacks, 
>and the organization of a stack file" for more info.  Also see the 
>defaultStack property (look in the dictionary for this one).
>
>Note that only an open stack can be a defaultStack, but that a stack need 
>not be visible to be open.
>
>You can open a stack from another file without showing it on the screen, 
>check the docs for the "go" (or "open") command in the dictionary section 
>of the Rev docs for more info.
>
>
>On Feb 27, 2005, at 5:06 AM, Rob Meijer wrote:
>
>>Hi Mark
>>
>>At 08:24 27/2/2005, Mark Wieder wrote:
>>>If I understand what you're trying to do here, the following will
>>>create a new card at the end of substack "addressdata":
>>>
>>>push card -- called from mainstack
>>>go to last card of stack "addressdata"
>>>create card "whatever"
>>>pop card -- return to mainstack
>>
>>what a funny way to use push and pop.
>>In TB this means quite something else.
>>After te card "whatever" is created, can I
>>use global variables from the main stack
>>and can I pop all data from the mainstack
>>into the various fields on that whateverCard?
>>
>>
>>>RM> You may use a viewer to show a (part of) a page,
>>>RM> where you want to see special data: f.i. one user
>>>RM> wanted to see what product was the most lucrative,
>>>RM> so he opens a viewer, showing a part of a page
>>>RM> where that list was placed:
>>>
>>>So your page data is larger than the displayable card screen space?
>>>There's been some discussion on this list lately about this, but
>>>personally I prefer to create a different card for each view, populate
>>>the card with info from the source data card, then display the view
>>>card for the user. The lock screen command is very handy for this:
>>
>>I can give a viewer each dimension I want and I can
>>place it everywhere on the screen: a childviewer stays in the window,
>>a popupviewer has no limitationson the screen.
>>
>>>lock screen
>>>go to card "Cost Analysis"   --why not going directly to card whichProduct
>>>put field "unit cost" of card whichProduct into field "unit cost"
>>>---what card "unit cost" is this, samestack?
>>>put field "widgets" of card whichProduct into field "widgets"
>>>unlock screen
>>So what has happened now?
>>
>>I am very sorry,but this goes beyond my imagination.
>>I am not revolutionary enough yet.
>>
>>The scripting for a viewer is so easy, because every varaible
>>used in the script keeps its value when you start writing
>>the viewer part.
>>Example: in the script of button "store" of the intakeCard of
>>the main stack, I put all texts of the fields in a textline.
>>In the routine I showed in my last posting, I cab use the word
>>textline again !
>>But be aware that the viewer is for more than just adding a card:
>>everything you can do in the main stack, you can do in each stack
>>on your computer.
>>
>>Rob
>>
>>
>>robmeyer at hetnet.nl
>>www.japrosoft.com
>>no more spam: Mailwasher Pro
>>http://www.firetrust.com/products/pro/
>>and please mention my emailaddress...
>>_______________________________________________
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>>use-revolution at lists.runrev.com
>>http://lists.runrev.com/mailman/listinfo/use-revolution
>- -----------------------------------------------------------
>Frank D. Engel, Jr.  <fde101 at fjrhome.net>
>
>$ ln -s /usr/share/kjvbible /usr/manual
>$ true | cat /usr/manual | grep "John 3:16"
>John 3:16 For God so loved the world, that he gave his only begotten Son, 
>that whosoever believeth in him should not perish, but have everlasting life.
>$
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>
>
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robmeyer at hetnet.nl
www.japrosoft.com
no more spam: Mailwasher Pro
http://www.firetrust.com/products/pro/
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