Package: gtk

Function gtk:label-layout-offsets

Lambda List

gtk:label-layout-offsets (label)

Arguments

label -- a gtk:label widget

Return Value

x -- an integer with the x offset
y -- an integer with the y offset

Details

Obtains the coordinates where the label will draw the pango:layout object representing the text in the label. This is useful to convert mouse events into coordinates inside the pango:layout object, e.g. to take some action if some part of the label is clicked.

Of course you will need to create a gtk:event-box widget to receive the events, and pack the label inside it, since labels are windowless. Labels return false from the gtk:widget-has-window function. Remember when using the pango:layout functions you need to convert to and from pixels using the pango:pixels function or the pango:+scale+ constant.

Examples

(gtk:label-layout-offsets (make-instance 'gtk:label))
=> 0
=> -9
(gtk:label-layout-offsets (make-instance 'gtk:label :label "text"))
=> -14
=> -9    
 

See also

2023-3-5