java-gnome-developer

[Java-gnome-developer] Drawing with Cairo: Coordinates

[Goundy <go...@gm...>]

Hi guys,

I've a quick question.
I just noticed that when drawing with cairo, in the expose event I have 
to create a context and give it the returns of source.getWindow(), this 
returns the whole application window so X and Y I set to draw my picture 
to are calculated regarding the Window and not the *drawing area* I use 
which for me is an Image.

I have an interface that contains a drawing area and lot of other staff 
on top of this area (buttons, entries,... etc), so y question is: 
There's not an easier solution to handle coordinates instead of having 
to do staff like:
draw to:
x = topButton1.x + topButton2.x + topEntry.1 + ....
y = topButton1.Y + topButton2.Y.....

?

I hope it's clear
Thank you

Miloud B.

Re: [Java-gnome-developer] Drawing with Cairo: Coordinates

[Andrew C. <an...@op...>]

On Thu, 2009-09-17 at 03:34 +0200, Goundy wrote:

> to are calculated regarding the Window and not the *drawing area* I use 
> which for me is an Image.

Maybe try changing the Image for a DrawingArea?
http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/DrawingArea.html

AfC
Sydney

Re: [Java-gnome-developer] Drawing with Cairo: Coordinates

[Goundy <go...@gm...>]

Evening,
Oh thank you very much Andrew, I'm trying this tonight :)
(Sorry I completely forgot that a DrawingArea widget exists)

Cheers

Miloud B.

Andrew Cowie wrote:
> On Thu, 2009-09-17 at 03:34 +0200, Goundy wrote:
>   
>
> Maybe try changing the Image for a DrawingArea?
> http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/DrawingArea.html
>
> AfC
> Sydney
>
>   
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