[TIB] Re: text scrolling
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[TIB] Re: text scrolling
Depending on how fancy you want to get, you could also make it so that it
wouldn't break words in half at the end of the line. This would make it
slower though, since you need to do a lot of checking for word length by
stepping through the sub-strings looking for the space character and so on.
Plus, considering the limited number of characters you can fit on a
calculator screen, it might be easier to just get used to reading broken
words at the end/beginning of lines than it would be to have to hit the
page-down key more often because you want unbroken text.
on 7/6/02 8:51 PM, Stephen Beck at nolekid@bellsouth.net wrote:
>
> thanks. I hadn't thought of storing it as one string.
>
>
>>
>> From: John Teffer <jdteffer@cox.net>
>> Date: 2002/07/06 Sat PM 07:43:12 EDT
>> To: <ti-basic@lists.ticalc.org>
>> Subject: [TIB] Re: text scrolling
>>
>>
>> on 7/6/02 7:31 PM, Stephen Beck at nolekid@bellsouth.net wrote:
>>
>>> I had an idea for a program that is basically just a bunch of fairly long
>>> (at
>>> least compared to the screen of my 86) passages. To read the entire passage
>>> at
>>> once, the user (probably me) would just press up or down when when they get
>>> to
>>> the top or bottom of the screen. My question: is there a more efficient way
>>> (in basic) to do this? Here is basically what I had in mind:
>>>
>>> :Disp "G","H",..."N"; (fills up all line of screen, in middle of passage)
>>> :getky->x:If x==34; down arrow
>>> :Disp "H",..."J"
>>> :End
>>> :If x==25; up
>>> :Disp "F",..."M"
>>> etc., etc., etc.
>>
>> I would also add a function for scrolling up or down a whole page at a time,
>> instead of just line by line. Line by line could get slow.
>>
>> To get rid of the etc., etc., etc. in your program I would store each
>> passage in a single string, instead of a separate string for each line of
>> text. This would also make it easier to edit the text if you so desire.
>>
>> And use some for loops and whatever the 86 command for returning a subset of
>> string is for writing the text to the screen.
>>
>>
>>
>
>
References: