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Re: How to create a GridCtrl with fixed cell size [message #16027 is a reply to message #16026]

Fri, 23 May 2008 11:54

cbpporter is currently offline

cbpporter
Messages: 1427
Registered: September 2007

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mrjt wrote on Fri, 23 May 2008 12:14

Vector<Foo *> seems a reasonable option (although you could use Vector< Ptr<Foo> >), but I'm struggling to think of a situation where this would be necessary. Can the view not just use a const reference to the Vector? Or does it need a special subset of items?

Well, since you asked, yes I have such a situation. It is rather messy. I have a collection of over 13000 items which are organized in multiple "views". These views are subsets of the original collection, and all have their particular order. Items can and often will be in a lot of views at the same time. The number of total views is not yet determined, but it is over 50. Through an interface a filter can be defined which allows and item or rejects it. This must update all the views, determine some basic statistics (i.e. items accepted vs. items rejected) and must work in "real-time" on a low-end system. Any number of views can be visible at all times (though luckily limited by screen resolution). Since applying the filter on each view is not feasible, I apply it on the main collection and use those vectors for displaying and to compute the statistics.

So there were two solutions.
1. Use a lot of configuration files (possibly XML) and a lot of instance variables and even a lot more enums. Maintenance nightmare.
2. Use 3 classes full of templates and just a small number of constants and generate the sets programatically by parametrized classes so I don't end up with with dozens of instance variables.

I chose the second one.

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[Message index]

		How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 19 May 2008 12:07
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Mon, 19 May 2008 12:23
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 19 May 2008 12:32
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Mon, 19 May 2008 12:48
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 19 May 2008 14:18
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 19 May 2008 16:07
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Mon, 19 May 2008 17:25
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 19 May 2008 18:04
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Mon, 19 May 2008 19:56
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Mon, 19 May 2008 18:09
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Tue, 20 May 2008 02:23
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Tue, 20 May 2008 08:19
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Tue, 20 May 2008 09:07
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Tue, 20 May 2008 10:49
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Tue, 20 May 2008 11:13
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Tue, 20 May 2008 14:18
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Tue, 20 May 2008 14:28
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Tue, 20 May 2008 15:33
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Tue, 20 May 2008 15:46
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Tue, 20 May 2008 17:43
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Wed, 21 May 2008 15:48
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Wed, 21 May 2008 15:58
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Wed, 21 May 2008 16:13
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Wed, 21 May 2008 17:45
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Thu, 22 May 2008 11:50
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Thu, 22 May 2008 12:10
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Thu, 22 May 2008 15:03
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Thu, 22 May 2008 18:38
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Thu, 22 May 2008 21:15
		Re: How to create a GridCtrl with fixed cell size By: mrjt on Fri, 23 May 2008 11:14
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Fri, 23 May 2008 11:54
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Sat, 24 May 2008 19:17
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Sat, 24 May 2008 19:32
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Wed, 28 May 2008 20:01
		Re: How to create a GridCtrl with fixed cell size By: cbpporter on Mon, 02 June 2008 11:06
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Mon, 09 June 2008 10:08
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Mon, 19 May 2008 17:23
		Re: How to create a GridCtrl with fixed cell size By: unodgs on Mon, 19 May 2008 12:34

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