When working in high contrast mode, we want to be able to select a
footprint with only elements in, e.g. silk and fab layers.
The previous design for footprint IsOnLayer had one behavior of every
other element and a different behavior for footprints. This leads to
multiple bugs as new features use the overloaded IsOnLayer expecting it
to report if the element exists on a layer or not.
For footprints, we need a different routine to determine whether or not
to select the footprint when clicking on it. IsOnLayer will report if
the footprint has any elements on a specific layer but we don't want to
use the bbox for a hittest because large footprints with through hole
pads will exist on every layer and have an enormous bbox. Instead, we
filter footprints based on the hittest of each element. This behaves in
a more logical fashion, allowing you to select a footprint by clicking
on a visible element of that footprint.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/15284
Also regularizes some of the other selection filtering options.
This also fixes an invalidated iterator (and subsequent segfault) in
the old code.
Fixes https://gitlab.com/kicad/code/kicad/issues/9896
This standardizes selection tools in SELECTION_TOOL class to be able to
handle a long-click as asking for a non-heuristic disambiguation menu.
Fixes https://gitlab.com/kicad/code/kicad/issues/8490
Moves all of the find dialog control out of the selection tool similar
to the schematic editor. Dialog is also non-modal now to match the
schematic editor.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8966
Also removes a bunch of old implementations of pad locking and
filtering which are no longer needed. (They're now handled by the
uniform locking code.)
Also removes some of the auto-promotion logic. Rotating a footprint
when a pad was selected is going to be surprising whether the pad
is locked or not.
Fixes https://gitlab.com/kicad/code/kicad/issues/8322
SHIFT, CTRL, ALT modifier keys were handled in 2 different codes, one for
the selection tool and another to modify the mouse cursor shape, with 2
different configs.
Now the modifiers are managed from only one function.
Pcbnew: group also SHIFT, CTRL, ALT modifier keys management to a specific function.
Fixes#8021https://gitlab.com/kicad/code/kicad/issues/8021