[haiku-appserver] Re: partly paiting

Hi,

Axel Dörfler wrote:
Adi Oanca <adioanca@xxxxxxxxx> wrote:
Adi Oanca wrote:
If we want to fix this "local origin" problem, we need to change the bounds rectangle so that we will not get and automated scroll. I think this is the right way to go.
If there are no objections I'll start coding for this change.

Actually, I don't even understand what you mean by "automated scroll". 

    Let me ::Draw() :-)
------------------------------------------------
|                                              |
|                                    paper     |
|                                              |
|                                              |
|          0,0                                 |
|           x                                  |
|                                              |
|               (5,3)                          |
|                +------------+                |
|                |            |                |
|bounds  ->      |            |                |
|                |            |                |
|                +------------+                |
|                                              |
|                                              |
------------------------------------------------
SetOrigin(-5,-3);
------------------------------------------------
|                                              |
|   (new 0,0)                        paper     |
|      x                                       |
|                                              |
|   (old 0,0)(new 5,3)                         |
|           x------------+                     |
|           |            |                     |
|newBounds >|  (old 5,3) |                     |
|           |    +-------|----+                |
|           +------------+    |                |
|                |            |                |
|old bounds  ->  |            |                |
|                +------------+                |
|                                              |
|                                              |
------------------------------------------------

        After SetOrigin() the bounds rectangle points to another piece
of our paper. That's what I wanted to say with "auto scroll"
        BUT, if I think better, it might not matter at all because children
are expressed in local coordinates which refer to local origin, and any drawing
done before SetOrigin() should be identical after.
        I will not change the bounds rectangle on SetOrigin(), and see if
all works well.

But other than that, I think that the bounds rectangle should indeed honour the origin of the view - if that doesn't cause too much pain :-) 

    I hope not. :-(


bye,Adi.



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