Link a window or a list of windows to layers.
Object
Windows can be linked only to
Layer objects.
Gamgi expects users to identify first a window or list of windows
and then a layer to link. When the
Window entry is active
and empty, pressing the mouse over the graphic area in the current
window (local selection) creates a menu with all the windows in Gamgi,
which can then be selected. The current window is initially
proposed in the
Window entry. Pressing the
List
button, the current list of windows is selected instead.
Gamgi is now expecting users to click over the graphic area in a
window (global selection), to create a menu with all the layers in
that window, which can then be selected, to enter the
Layer
entry.
In the link mode
Object, the selected layer must be in a different
window. In the link mode
All, the layer can be any layer in the
selected window or any non-empty layer in another window.
Method
Gamgi suppports two methods to link windows:
Object
and
All.
The
Object method links a window to a single
Layer.
The layer is unlinked from its previous window and linked to the
new window. The layer history kept by the
Undo and
Save
mechanisms is preserved in this operation. An error is issued when
the selected layer was already in the window.
After the linking operation, Gamgi always
puts on top the selected window and layer.
When linking a list of windows, the layer is replicated as many times
as necessary to link each window in the list to a different replica.
The layer history kept by the
Undo and
Save
mechanisms is not copied to the replicas.
The
All method moves all the non-empty layers in all the
other windows to the selected window, remove all the other windows
which now have only empty layers, and finally put the selected
layer as current layer. An error is issued when the selected layer
cannot be found among the layers reunited in the window.
When a list of windows is selected, the
All method is disabled.