I'm working on a situation where, if no image panel is in the
selection, i.e., because another window is selected, as below:
The "Zoom In", "Zoom Out", and "Pan" checkboxes in the toolbar
should be disabled, which is the case above. On the other
hand, when, as is the case below, the window that contains the
image panel is selected, the "Zoom In", "Zoom Out", and "Pan"
checkboxes in the toolbar should be enabled, as can be seen
below:
The above, in itself, is a reasonably...