[Sugar-devel] [Design]: OLPC#2493 [Implement a scale in paint Activity]
garycmartin at googlemail.com
Tue Oct 19 13:34:25 EDT 2010
On 19 Oct 2010, at 13:07, Gonzalo Odiard <godiard at gmail.com> wrote:
> To be honest, i don't know how implement this functionality. Is a tool to change the size of a selection? is a rule? is a zoom tool?
> We have a tool to change the size of a selection (in the Image toolbar) but is not easy to use.
> How I said previously, will be easier implement first mirroring (I have created a ticket http://bugs.sugarlabs.org/ticket/2463)
> If you want work in scale, please write a propose, draw a mock-up and probably Gary can help us with the interface issues.
Hmmmm... That OLPC ticket is pretty minimal! It could mean either; 1) improving the ability to scale a selection; or 2) scale the whole image canvas; or 3) add some unit based rulers/grid so that you could draw something to a specific scale; or 4) allowing different sized canvas so you can zoom in and out to work at different scales...
Anyone know what the request was for? :-)
I think 1 works OK at the moment (make a selection and then use the Image tools to adjust width or height or rotate), but it is not a great UI for it. The usual way paint software allows easy scaling of selections is to add handles to the 4 sides and 4 corners of the marquee selection. That way a user can drag the handles to change width or height, or grab a corner and change width and height at the same time.
> On Mon, Oct 18, 2010 at 6:10 PM, Ayush Goyal <ayush at seeta.in> wrote:
> Kindly share your feedback on the two approaches I have arrived at for this issue. Thank you Gonzalo for your positive feedback on them.
> 1.Use selection tool(Marquee tool) for scale using its boundary as dimensions ,printing it out on either toolbox ,or on a temporary status bar at bottom or view it on a gtk.window instance using a scale button.
> 2.Implement a line scale like a line tool which will show dimensions from starting point to end-point in pixels as text at center of the line.
> Looking forward to your reviews.
> Gonzalo Odiard
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> Sugar-devel at lists.sugarlabs.org
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