By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings.
440,129 Members | 2,300 Online
Bytes IT Community
+ Ask a Question
Need help? Post your question and get tips & solutions from a community of 440,129 IT Pros & Developers. It's quick & easy.

Slide show: this should be fairly straightforward - a what language to use question

P: n/a
Note: I tried cross-posting this message to several newsgoups,
including comp.lang.perl.misc, c.l.p.moderated,
comp.infosystems.www.authoring.cgi, comp.lang.javascript and
comp.lang.php. Nothing appeared on my news server, so I'm trying
again - this time posting a separate copy of the message to each
group.

I'm thinking this should be fairly easy to accomplish - a quick and
dirty ... what? ... script? program?

Background: I have a website - created using a html-generator
application called Dreamweaver. I have some limited knowledge of
html, and I sort of know what php does. I've read that Perl is cool,
powerful and free ... but beyond that ...???. I know next to nothing
about Javascript.

Here's the scenario:

o User brings up page with, say, 5 thumbnail images. The thumbnails
represent 5 sets of slides (jpegs), in, say, 5 separate subdirectories
living in my area of my website host's system. Each slide set
contains from 10 to 20 images, each with an associated caption. Jpegs
are named: s01.jpg, s02.jpg, s03.jpg, ... in each subdirectory (or
maybe they have unique names - but let's simplify). The slides are
different sizes, ranging from 400x300 to 1000x800 pixels

o Selecting a thumbnail (by clicking) from among the 5 takes the user
to a page where he sees the first slide and first caption associated
with that thumb. In additon to the jpeg and the caption, the screen
would contain some buttons that the user can click to go back a slide,
go forward a slide, or return home to thumbnail page. User can also
click on an image to enlarge it - meaning he would bring up the same
page, but it would show the file t01.jpg, which is, say, an un-cropped
version of s01.jpg. (Or perhaps, he would have specified at the home
page whether he wanted the high or the low bandwith version of the
slide show.)

o Subsequent clicking on the forward button brings up the subsequent
slides in sequence, returning to the first slide after the last is
displayed. Other than the different images and captions, the pages are
identical with regard to title, background, font, layout, etc.

I know how to accomplish this by the brute force method: For each of
the X number of images in a subdirectory, create X unique html
code-pages - slide1.htm, slide2.htm, etc. - that each reference a
particular image and particular caption, bringing up the next (or
previous) code-page in sequence when the user clicks to advance (or go
back). So for 5 sets of slides, each with 20 images, you'd have a
total of 100 unique .htm files. Actually, there would be 200 files,
given that there are a small and large version of each image.

Here's the more elegant approach:

One "routine" does everything. You ?pass? the name of the slide show
subdirectory to the routine as an ?argument?, and assign it to a
filename ?string variable? somehow. You might also pass the number of
slides in the subdirectory, unless there's a way for the routine to
determine what it is (like, by reading the number from another file,
or by "calling" some ?system function?, that reveals the number of
files in the directory.) The routine then loops through the list,
counting from 1 to X, and somehow opening the associated s0n.jpg file
(and associated caption text) to put up on the user's screen as he
clicks his way through the show.

This brings up a host (no pun intended) of basic questions:

o Where would this code or script or html actually run? On the site
host? It is downloaded to the user's machine? Is it intrepreted by
some entity - like the browser?

o What support is needed on the host side for something like this?
What about the user/client side? If it's just a browser he needs, will
any old browser do? (I do know that the host for my own website ...
catalog.com ... does support php. The support for it is free for the
sites they host.)

o Is this a question of "self-modifying" html? (I'm thinking that's
not possible.)

o What is the easiest way to get this done. Could you learn enough
php, perl, javascript, or whatever in, say, a day and a half, to write
this little routine together and get it working?
Thanks for your attention
-Al Gabis
Camp Springs, Maryland
www.SpiritualNeighborhood.org
Jul 17 '05 #1
Share this Question
Share on Google+
5 Replies


P: n/a
Al Davis wrote:
Note: I tried cross-posting this message to several newsgoups,
including comp.lang.perl.misc, c.l.p.moderated,
comp.infosystems.www.authoring.cgi, comp.lang.javascript and
comp.lang.php. Nothing appeared on my news server, so I'm trying
again - this time posting a separate copy of the message to each
group.

I'm thinking this should be fairly easy to accomplish - a quick and
dirty ... what? ... script? program?

Background: I have a website - created using a html-generator
application called Dreamweaver. I have some limited knowledge of
html, and I sort of know what php does. I've read that Perl is cool,
powerful and free ... but beyond that ...???. I know next to nothing
about Javascript.

Here's the scenario:

o User brings up page with, say, 5 thumbnail images. The thumbnails
represent 5 sets of slides (jpegs), in, say, 5 separate subdirectories
living in my area of my website host's system. Each slide set
contains from 10 to 20 images, each with an associated caption. Jpegs
are named: s01.jpg, s02.jpg, s03.jpg, ... in each subdirectory (or
maybe they have unique names - but let's simplify). The slides are
different sizes, ranging from 400x300 to 1000x800 pixels

o Selecting a thumbnail (by clicking) from among the 5 takes the user
to a page where he sees the first slide and first caption associated
with that thumb. In additon to the jpeg and the caption, the screen
would contain some buttons that the user can click to go back a slide,
go forward a slide, or return home to thumbnail page. User can also
click on an image to enlarge it - meaning he would bring up the same
page, but it would show the file t01.jpg, which is, say, an un-cropped
version of s01.jpg. (Or perhaps, he would have specified at the home
page whether he wanted the high or the low bandwith version of the
slide show.)

o Subsequent clicking on the forward button brings up the subsequent
slides in sequence, returning to the first slide after the last is
displayed. Other than the different images and captions, the pages are
identical with regard to title, background, font, layout, etc.

I know how to accomplish this by the brute force method: For each of
the X number of images in a subdirectory, create X unique html
code-pages - slide1.htm, slide2.htm, etc. - that each reference a
particular image and particular caption, bringing up the next (or
previous) code-page in sequence when the user clicks to advance (or go
back). So for 5 sets of slides, each with 20 images, you'd have a
total of 100 unique .htm files. Actually, there would be 200 files,
given that there are a small and large version of each image.

Here's the more elegant approach:

One "routine" does everything. You ?pass? the name of the slide show
subdirectory to the routine as an ?argument?, and assign it to a
filename ?string variable? somehow. You might also pass the number of
slides in the subdirectory, unless there's a way for the routine to
determine what it is (like, by reading the number from another file,
or by "calling" some ?system function?, that reveals the number of
files in the directory.) The routine then loops through the list,
counting from 1 to X, and somehow opening the associated s0n.jpg file
(and associated caption text) to put up on the user's screen as he
clicks his way through the show.

This brings up a host (no pun intended) of basic questions:

o Where would this code or script or html actually run? On the site
host? It is downloaded to the user's machine? Is it intrepreted by
some entity - like the browser?

o What support is needed on the host side for something like this?
What about the user/client side? If it's just a browser he needs, will
any old browser do? (I do know that the host for my own website ...
catalog.com ... does support php. The support for it is free for the
sites they host.)

o Is this a question of "self-modifying" html? (I'm thinking that's
not possible.)

o What is the easiest way to get this done. Could you learn enough
php, perl, javascript, or whatever in, say, a day and a half, to write
this little routine together and get it working?
Thanks for your attention
-Al Gabis
Camp Springs, Maryland
www.SpiritualNeighborhood.org


or a google search for PHP slideshow howto will give you lots of pointers to
code that is freely available - so you don't have write your own...

--
Michael Austin.
Consultant - Available.
Donations welcomed. Http://www.firstdbasource.com/donations.html
:)
Jul 17 '05 #2

P: n/a
Al Davis wrote:
Note: I tried cross-posting this message to several newsgoups,
including comp.lang.perl.misc, c.l.p.moderated,
comp.infosystems.www.authoring.cgi, comp.lang.javascript and
comp.lang.php. Nothing appeared on my news server, so I'm trying
again - this time posting a separate copy of the message to each
group.

I'm thinking this should be fairly easy to accomplish - a quick and
dirty ... what? ... script? program?

Background: I have a website - created using a html-generator
application called Dreamweaver. I have some limited knowledge of
html, and I sort of know what php does. I've read that Perl is cool,
powerful and free ... but beyond that ...???. I know next to nothing
about Javascript.

Here's the scenario:

o User brings up page with, say, 5 thumbnail images. The thumbnails
represent 5 sets of slides (jpegs), in, say, 5 separate subdirectories
living in my area of my website host's system. Each slide set
contains from 10 to 20 images, each with an associated caption. Jpegs
are named: s01.jpg, s02.jpg, s03.jpg, ... in each subdirectory (or
maybe they have unique names - but let's simplify). The slides are
different sizes, ranging from 400x300 to 1000x800 pixels

o Selecting a thumbnail (by clicking) from among the 5 takes the user
to a page where he sees the first slide and first caption associated
with that thumb. In additon to the jpeg and the caption, the screen
would contain some buttons that the user can click to go back a slide,
go forward a slide, or return home to thumbnail page. User can also
click on an image to enlarge it - meaning he would bring up the same
page, but it would show the file t01.jpg, which is, say, an un-cropped
version of s01.jpg. (Or perhaps, he would have specified at the home
page whether he wanted the high or the low bandwith version of the
slide show.)

o Subsequent clicking on the forward button brings up the subsequent
slides in sequence, returning to the first slide after the last is
displayed. Other than the different images and captions, the pages are
identical with regard to title, background, font, layout, etc.

I know how to accomplish this by the brute force method: For each of
the X number of images in a subdirectory, create X unique html
code-pages - slide1.htm, slide2.htm, etc. - that each reference a
particular image and particular caption, bringing up the next (or
previous) code-page in sequence when the user clicks to advance (or go
back). So for 5 sets of slides, each with 20 images, you'd have a
total of 100 unique .htm files. Actually, there would be 200 files,
given that there are a small and large version of each image.

Here's the more elegant approach:

One "routine" does everything. You ?pass? the name of the slide show
subdirectory to the routine as an ?argument?, and assign it to a
filename ?string variable? somehow. You might also pass the number of
slides in the subdirectory, unless there's a way for the routine to
determine what it is (like, by reading the number from another file,
or by "calling" some ?system function?, that reveals the number of
files in the directory.) The routine then loops through the list,
counting from 1 to X, and somehow opening the associated s0n.jpg file
(and associated caption text) to put up on the user's screen as he
clicks his way through the show.

This brings up a host (no pun intended) of basic questions:

o Where would this code or script or html actually run? On the site
host? It is downloaded to the user's machine? Is it intrepreted by
some entity - like the browser?

o What support is needed on the host side for something like this?
What about the user/client side? If it's just a browser he needs, will
any old browser do? (I do know that the host for my own website ...
catalog.com ... does support php. The support for it is free for the
sites they host.)

o Is this a question of "self-modifying" html? (I'm thinking that's
not possible.)

o What is the easiest way to get this done. Could you learn enough
php, perl, javascript, or whatever in, say, a day and a half, to write
this little routine together and get it working?
Thanks for your attention
-Al Gabis
Camp Springs, Maryland
www.SpiritualNeighborhood.org


As said, you will probably find a script like that for free on the web. And
if it's PHP, don't worry about browser. Browsers have nothing to do with PHP
in principle, the server does handle all the PHP scripts and sends HTML to
the browser. Of course HTML formatting may be an issue if you have an
antique browser that may or may not support the tags you use.

And yes, PHP is free, like PERL, and has all the gizmos and tools you may
want/need to use to achieve what you want if you can't find a ready-made
script.

Javascript is not recommended I think here. The images are on the server
side, better handle the image loading and page creation there as well.
Besides, Javascript is not enabled on everyone's browser. PHP is
transparent.

What you DO need is access to a webserver with PHP support. That can be
Apache, IIS or any other server that works with PHP. Apache the most popular
still, IIS I bet a good second.

As far as image size is concerned, better provide all the desired sizes
yourself as separate files than just specify display width. For one
html-up-or-downsized pics look crappy and a 1000x800 image displayed as a
thumbnail 100x80 still requires the same bandwidth.

HTH
Pjotr
Jul 17 '05 #3

P: n/a
I noticed that Message-ID: <8d********************************@4ax.com>
from Al Davis contained the following:
o What is the easiest way to get this done. Could you learn enough
php, perl, javascript, or whatever in, say, a day and a half, to write
this little routine together and get it working?


From the starting position of an absolute beginner?

No chance.

--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/
Jul 17 '05 #4

P: n/a
On Tue, 24 Aug 2004 20:58:54 GMT, in comp.lang.php you wrote:
Al Davis wrote:
or a google search for PHP slideshow howto will give you lots of pointers to
code that is freely available - so you don't have write your own...


I got this one at the hotscripts.com site. Way too easy to install....

http://www.perfectreign.com/slideshow/phpslideshow.php

kai
www.gamephreakz.com || www.perfectreign.com || www.filesite.org
kai at 3gproductions dot com
Jul 17 '05 #5

P: n/a
.oO(Al Davis)
This brings up a host (no pun intended) of basic questions:

o Where would this code or script or html actually run? On the site
host?
Yep, on the server.
It is downloaded to the user's machine? Is it intrepreted by
some entity - like the browser?
No, the browser just requests a slide of a particular slideshow, a URL
could look something like

www.example.org/xx/yy/

with xx = number of slideshow and yy = number of slide. Without a
server-side URL-rewriting mechanismn (mod_rewrite on Apache servers) it
would look like

www.example.org/?show=xx&slide=yy
o What support is needed on the host side for something like this?
PHP, Apache (with mod_rewrite if possible), a graphics library (GD) if
you would like to create thumbnails on-the-fly.
What about the user/client side? If it's just a browser he needs, will
any old browser do?
As long as the browser is able to display images - yes. There's nothing
special, the output is plain HTML with some images and links. Even NN4
can handle that.
o Is this a question of "self-modifying" html? (I'm thinking that's
not possible.)
It's a single script that generates some output dependent on the
parameters it gets.
o What is the easiest way to get this done.
PHP ;)
Could you learn enough
php, perl, javascript, or whatever in, say, a day and a half, to write
this little routine together and get it working?


Quite easy to do for a fairly experienced programmer, quite heavy for a
beginner (dealing with URL parameters, file system, maybe image creation
and cache mechanismns etc.). It would be easier to use an existing
script (but of course the learning effect would be much better with
writing your own).

Micha
Jul 17 '05 #6

This discussion thread is closed

Replies have been disabled for this discussion.