Re: Dragging graphics around

[G Hasse <gh raditex se>]

On Tue, 21 Oct 2003, Fabio Rotondo wrote:

> Hi,
>
> I need to do the following: I'd like to write an app which should
> display graphics (ie. icons) on a GtkDrawingArea that the user should be
> able to "drag around" the area (not on the "real" desktop, just on my
> GtkDrawingArea).
> What I need to know which events should I intercept (and where) and how
> to drag images around without trashing graphics below it.
>
> Any hint?

Hi,

This is not a hint - but the real thing...

We have done just that in a process control panel.
Take a look at http://www.raditex.se/bilder/process1.png

In this we have made widgets that you could drag around in the
editor. Make a widget, place it on the drawing area. Then you should
catch button click to focus on the widget. Then you catch mouse move
to change the position of the widget, and when you release the mouse
button you have the new posistion on the drawing area.

Göran Hasse

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