[Newbies] Designing a calender

gruntfuttuck gruntfuttuck at gmail.com
Fri Oct 5 13:16:31 UTC 2007

Thanks for the comments.

Yes it makes sense to look at it just as a list of events with dates. Quite
simple really!

Cheers Darren

John Almberg wrote:
> Another way to put it is the events are the data and a calendar is  
> *one way* to view that data. Another view would be a list of events.  
> If you separate the events from the view used to display them, the  
> design looks a lot simpler.
> -- John
> On Oct 4, 2007, at 9:57 AM, Herbert König wrote:
>> Hello Darren,
>> g> This morning I woke up with a decision to create a calender in  
>> squeak for
>> g> the fun of it.
>> good way to wake up :-)
>> g> How I visually see this is that a calender has years which in  
>> turn hold
>> g> month, which in turn holds days and days have events. I'm not  
>> interested in
>> g> adding times to the days, times will be added to the event text.
>> Um, I've been thinking about this several times already
>> Some examples:
>> Meet Jim at his office on December 30. Jim got a bellyache. The event
>> stays the same but you got to stick it into another month which you
>> find in yet another year.
>> I dislike that.
>> The fact that you wake up with the plan to design a calendar for fun
>> hints, that your personal calendar isn't that crammed right now, so
>> why have empty days?
>> I would have a collection of events which (may) carry a date. "I
>> should empty the waste bin" type of events don't.
>> So I would make finding the events of a day (or other timespan) a
>> function method.
>> If you have a 3.8 or older image you might want to look at MonthMorph
>> which does its job without carrying days. For 3.9 the PDA on SqueakMap
>> has the MonthMorph. I often use it as a day picker.
>> g> One aria where I'm confused is if an instance of class Calender  
>> holds
>> g> instances of class Year; how many years instances dose the  
>> calender hold?
>> g> Are years created as needed or should say one hundred years,  
>> into the future
>> g> be created when the calender is created? What I'm thinking is  
>> that an
>> g> instance of class year should be created when a date is added to  
>> that year.
>> g> Am I looking at this all the wrong way?
>> Can't tell if it's wrong but I personally think the calendar is the
>> means and the ends are the events.
>> g> As I see it repeat events need to be accessed by all instances  
>> of class
>> g> year. So It would seem that a class variable is the best place  
>> to store
>> This just looks like things get complicated because your thoughts
>> center around the calendar instead around the events.
>> g> these. How do instance methods access class variables?
>> By using its name (which is capitalised) just like it accesses an
>> instance variable. Or by adding an accessor for the class and using
>> that one.
>> Cheers
>> Herbert                            mailto:herbertkoenig at gmx.net
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