Re: [PD] Tk Zoom
On Feb 22, 2012, at 12:48 AM, Mathieu Bouchard wrote: Le 2012-02-20 à 22:51:00, Hans-Christoph Steiner a écrit : Thanks for your email, I always find it interesting to hear people's perspectives. I'm happy to see more people getting involved in development, so that means we can have more things like zooming interfaces. :-) Tcl/Tk can do zooming just fine, by the way ;-) How do you do zooming with Tcl/Tk ? I mean... I implemented zooming using a big workaround which wouldn't have worked with Pd externals... is there a trouble-free way to zoom ? Didn't you use Tk scaling? That's what I mean. Yes, this would not work with existing GUI objects. .hc I have the audacity to believe that peoples everywhere can have three meals a day for their bodies, education and culture for their minds, and dignity, equality and freedom for their spirits. - Martin Luther King, Jr. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Tk Zoom
Le 2012-02-22 à 09:31:00, Hans-Christoph Steiner a écrit :
On Feb 22, 2012, at 12:48 AM, Mathieu Bouchard wrote:
How do you do zooming with Tcl/Tk ?
I mean... I implemented zooming using a big workaround which wouldn't have
worked with Pd externals... is there a trouble-free way to zoom ?
Didn't you use Tk scaling? That's what I mean. Yes, this would not work with
existing GUI objects.
« Tk Scaling » is the name of a font measurement ratio for pt/px
conversions, right ?
TkCanvas' «scale» command is unrelated, and does not do zoom, because it
changes the size of items. The difference between that and zoom is that Tk
doesn't make you see the prescaled coordinates, it still interacts with
you only in terms of actual pixels. This means that most of the time,
you'd have to scale the values on your own using [expr {$x*$scale}] and
stuff.
In DesireData, I avoid TkCanvas's «scale» command entirely, and I make
every canvas item creation/modification through a function that scans the
arguments of the item, scales all coords it sees, scales the thickness of
lines, scales the font sizes, automatically decides tags to be used, and
figures out what to do differently in create vs modify.
That way, the widget's behaviour does not have to implement zoom, it does
not have to implement modification-functions (because the create-function
is able to redraw an existing thing), it does not have to implement the
delete-function (because the enforced common tag makes a single command
delete), etc.
That's not compatible with t_widgetbehavior and couldn't possibly be made
to be.
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Re: [PD] Tk Zoom
i may be totally out of my depth here as i'm not a programmer but i believe
MaxMSP was able to do zooming through the use of Juce. it certainly wasn't
available beforehand in any of the 4.X series. personally i find zooming to
be one the most massively useful things when editing patches. being old-ish
my eyes definitely have more issues than they used to...
scott
On Wed, Feb 22, 2012 at 10:32 AM, Mathieu Bouchard ma...@artengine.cawrote:
Le 2012-02-22 à 09:31:00, Hans-Christoph Steiner a écrit :
On Feb 22, 2012, at 12:48 AM, Mathieu Bouchard wrote:
How do you do zooming with Tcl/Tk ?
I mean... I implemented zooming using a big workaround which wouldn't
have worked with Pd externals... is there a trouble-free way to zoom ?
Didn't you use Tk scaling? That's what I mean. Yes, this would not work
with existing GUI objects.
« Tk Scaling » is the name of a font measurement ratio for pt/px
conversions, right ?
TkCanvas' «scale» command is unrelated, and does not do zoom, because it
changes the size of items. The difference between that and zoom is that Tk
doesn't make you see the prescaled coordinates, it still interacts with you
only in terms of actual pixels. This means that most of the time, you'd
have to scale the values on your own using [expr {$x*$scale}] and stuff.
In DesireData, I avoid TkCanvas's «scale» command entirely, and I make
every canvas item creation/modification through a function that scans the
arguments of the item, scales all coords it sees, scales the thickness of
lines, scales the font sizes, automatically decides tags to be used, and
figures out what to do differently in create vs modify.
That way, the widget's behaviour does not have to implement zoom, it does
not have to implement modification-functions (because the create-function
is able to redraw an existing thing), it does not have to implement the
delete-function (because the enforced common tag makes a single command
delete), etc.
That's not compatible with t_widgetbehavior and couldn't possibly be made
to be.
__**__**
__
| Mathieu BOUCHARD - téléphone : +1.514.383.3801 - Montréal, QC
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[PD] Tk Zoom
Le 2012-02-20 à 22:51:00, Hans-Christoph Steiner a écrit : Thanks for your email, I always find it interesting to hear people's perspectives. I'm happy to see more people getting involved in development, so that means we can have more things like zooming interfaces. :-) Tcl/Tk can do zooming just fine, by the way ;-) How do you do zooming with Tcl/Tk ? I mean... I implemented zooming using a big workaround which wouldn't have worked with Pd externals... is there a trouble-free way to zoom ? __ | Mathieu BOUCHARD - téléphone : +1.514.383.3801 - Montréal, QC___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Tk Zoom
- Original Message - From: Mathieu Bouchard ma...@artengine.ca To: Hans-Christoph Steiner h...@at.or.at Cc: pd-list@iem.at pd-list@iem.at Sent: Wednesday, February 22, 2012 12:48 AM Subject: [PD] Tk Zoom Le 2012-02-20 à 22:51:00, Hans-Christoph Steiner a écrit : Thanks for your email, I always find it interesting to hear people's perspectives. I'm happy to see more people getting involved in development, so that means we can have more things like zooming interfaces. :-) Tcl/Tk can do zooming just fine, by the way ;-) How do you do zooming with Tcl/Tk ? I mean... I implemented zooming using a big workaround which wouldn't have worked with Pd externals... is there a trouble-free way to zoom ? Curious about that, too. __ | Mathieu BOUCHARD - téléphone : +1.514.383.3801 - Montréal, QC ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
