Several performance issues fixed (as we avoid keeping a ListBox with
ListItem in sync with the UndoHistory/UndoStates). There is still some
room for improvement: e.g. grouping several ui::View::updateView() in
just one if several onAddUndoState() will be called (e.g. when we are
running a script without transactions).
This commit adds the option to invert if the brush size increases or
decreases when holding CTRL and scrolling as mentioned in the issue #2364
By default, the previous behavior is kept.
Now we can change several values (zoom, brush size, etc.) pressing a
keyboard shortcuts and dragging the mouse in a specific vector
direction (DragVector). It allows the modification of one, two, or
even more parameters at the same time (e.g. X axis to change the brush
size, Y axis the alpha value of the ink).
Incomplete version of the Lua debugger.
Some available features:
* Break in next executed instruction
* Step in, over, out
* See & navigate stacktrace
* See local variables
Some missing features:
* Breakpoints
* Eval user expressions with local variables
The UX needs some improvement yet.
Updates folder upon navigation (up, back, forward, in).
Also introduces a new button to refresh the current folder view when pressed or when hotkey pressed (F5 or ctrl+R)
Each ui::Window now can have a related native os::Window. This
connection is done through the ui::Display class added recently in
c3d52f0bbe5242923c9e38495e1be1135ca0934f.
In this way we always have an empty tile available in the drawing
process. We've also added the Tileset::firstVisibleIndex field to
change the visible index of the tile 1 so we can offset the visible
number by the user (just as a visual aid / simulate old tilesets with
index=0=non-empty tile).
