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Re: How to create a GridCtrl with fixed cell size [message #15999 is a reply to message #15984]

Thu, 22 May 2008 11:50

cbpporter is currently offline

cbpporter
Messages: 1427
Registered: September 2007

Ultimate Contributor

[quote title=unodgs wrote on Wed, 21 May 2008 18:45]

Quote:

Ok, now I understand. One cell holds one Value object. If you want key/value pair conected with one cell you have to use some structure as Value. As for displaying. You have to extend GridDisplay class which contain some useful methods like SetLeft/Right/CenterImage.

Yes, I know that. This was not a question of how, it was a question of principle. I was asking why isn't there and easier method of doing it. The scenario I described is a fairly common one IMO. It's great that you can use a Display and do really fancy stuff if you need it, but in most cases I just want to display a simple text extracted from the Value in exactly the same position and with same style as if I had inserted a string directly. In such cases, using Display is a little overkill, and witting them can be repetitive and tedious.

Let's take for example a Paint method from Dispaly:

virtual void Paint(Draw& w, const Rect& r, const Value& q,
		               Color ink, Color paper, dword style) const

It has 6 parameters, and all have useful predefined values which you'll rarely ignore or change and go ahead and use them. A large portion of these displays consists of a simple w.DrawText and maybe some position calculation. Since U++ is in general good at detecting common idioms and offering some API, mechanism or clever trick for it, I was wondering why it doesn't offer something like that in this case. For example, something like:

struct MyDisplay: TextDisplay
{
    virtual String Text(const Value &q) const;
}

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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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