a better pdf clock

a better pdf clock

[Hans Hagen]

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Hi, 

I found out that this one runs well on acrobat 4 (exchange), works but with
messages on acrobat reader 4 CE, and works ok on acrobat reader 5 [i have
no acrobat exchange 5 here]. I wonder if this file works ok on acrobat 4
for linux. Since max os x has a pdf screen driver, it should be possible to
write gadgets like this as os extensions. 

Hans

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-------------------------------------------------------------------------
                                  Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                      Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
 tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------

Re: a better pdf clock

[Xander Schrijen]

On Monday, May 21, 2001, at 12:05  PM, Hans Hagen wrote:

> Hi,
>
> I found out that this one runs well on acrobat 4 (exchange), 
> works but with
> messages on acrobat reader 4 CE, and works ok on acrobat reader 
> 5 [i have
> no acrobat exchange 5 here]. I wonder if this file works ok on 
> acrobat 4
> for linux.

Very nice!  It works in Acrobat Reader 5.0 for Mac OS X, but not 
in the standard Preview application.

 > Since max os x has a pdf screen driver, it should be possible to
 > write gadgets like this as os extensions.

Actually, I don't think OS X has built-in PDF rendering as per 
the PDF specs.  Rather, its native imaging model very closely 
resembles that of PDF, and there are system APIs to read/write 
content to PDF.  But rendering embedded fonts, for instance, 
didn't work in the beta, and I guess javascript doesn't work in 
the current version.

Xander.

Re: a better pdf clock

[Hans Hagen]

At 11:24 PM 5/22/01 +0200, Xander Schrijen wrote:

>Actually, I don't think OS X has built-in PDF rendering as per 
>the PDF specs.  Rather, its native imaging model very closely 
>resembles that of PDF, and there are system APIs to read/write 
>content to PDF.  But rendering embedded fonts, for instance, 
>didn't work in the beta, and I guess javascript doesn't work in 
>the current version.

Adam Twardoch told me that the font stuff in OS X is kind of hackery and
will be replaced in a next relesase, so maybe the subset problem is related
to that. 

Maybe the pdf they use is also pdf/x conforming.   

Hans
-------------------------------------------------------------------------
                                  Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                      Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
 tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------

Re: a better pdf clock

[Hans Hagen]

At 03:36 PM 5/21/01 +0200, Joop Susan wrote:

>It works for me Hans!
>
>Acrobat 4.0 on Linux...
>
>The redraw of the clockface gives a very visible flash, but otherwise it
works.
>
>Would it be possible to only redraw the hands and the dot that is partly
obscured by the big hand? Might look smoother and get rid of the flash...

the texnique applied is as follows (I will document it and post it later): 

(1) put clock in page background
(2) stack 20 small and large arrows as fieldstack 
(3) attach javascript to page button 

so, there is only arrows to refresh, but the whole bbox of the field is
redrawn. 

It helps a lot if the magnification is a round number 100 200 etc

Hans
-------------------------------------------------------------------------
                                  Hans Hagen | PRAGMA ADE | pragma@wxs.nl
                      Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
 tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
-------------------------------------------------------------------------

Re: a better pdf clock

[Joop Susan]

> Hi, 
> 
> I found out that this one runs well on acrobat 4 (exchange), works but with
> messages on acrobat reader 4 CE, and works ok on acrobat reader 5 [i have
> no acrobat exchange 5 here]. I wonder if this file works ok on acrobat 4
> for linux. Since max os x has a pdf screen driver, it should be possible to
> write gadgets like this as os extensions. 
> 
> Hans
> 

It works for me Hans!

Acrobat 4.0 on Linux...

The redraw of the clockface gives a very visible flash, but otherwise it works.

Would it be possible to only redraw the hands and the dot that is partly obscured by the big hand? Might look smoother and get rid of the flash...

Nice demo!

Joop