click device shall handle box/polygon-clicks

[westram]

Currently click device only handles text and lines. Interaction with polygons and boxes does not work as one would expect. Examples:

• clicking "into" the polygon of a folded group has weird effects: e.g. in mark mode, for some click-positions the group gets marked, for other click-positions the whole is affected.
• clicking into the center of a marker box does not trigger callback;
  clicking more towards the border of the marker-box does trigger callback
  (try with marker-width set to 15)

[westram]

log:trunk@14146:14149 reduced the use of specific instances of AW_clicked_element to

• AW_device_click (creator)
• AWT_graphic_event::best_click (decide click target)
• AWT_graphic_tree::handle_command (needs direct access to AW_clicked_line to scale, rotate and spread branches)

[westram]

by log:trunk@14162:14168

(refactored click device … log:trunk@14150,14153,14154,14160)

[westram]

mark changes that got fixed after arb 6.0.x

[westram]

Milestone renamed