I have a presenter that is a subclass of SpPresenterWithModel and it
contains, among other things, an ImagePresenter with an autoscaling image (a
Form). I want to capture mouse clicks on the image and get the coordinate of
the click relative to the upper left corner of the Form.

 

My #initializePresenter method looks like this:

initializePresenter 

                           image := self newImage

                                                       image: self
emptyImage;

                                                       autoScale: true.

                           image eventHandler whenMouseDownDo: [ :event |

 
self handleMouseDown: event].

 

This works, and the #handleMouseDown: method is run whenever the mouse is
pressed on the ImagePresenter, but the MouseButtonEvent reports global
coordinates and I can't find out how to convert these to coordinates
relative to the Form that the ImagePresenter holds. I have googled and found
answers to similar old questions, but nothing that seems to apply to Spec2. 

 

There must be a very simple solution to this, it's just that I can't seem to
find it.

 

Kind regards,

Mikael

Reply via email to