The `mask` test was broken as it is not multi-layer aware (also it
should be negated).
The "layers-mask-edit" test was actually already fine because current
implementation only allow mask editing when single-selected. Still
improve the test to use multi-layer variables.
Thanks to Cyril Richard for the original patch proposition from which I
derivated the present one.
This implied a lot of other core changes, which also pushed me into
improving some of the edit actions and PDB calls to be multi-layer aware
in the same time.
Note that it is still work-in-progress, but I just had to commit
something in an acceptable intermediate state otherwise I was just going
crazy.
In particular now the various transform tools are multi-layer aware and
work simultaneously on all selected layers (and the linked layers if any
of the selected layers is linked too). Both preview and final transform
processing works.
In the limitations, preview doesn't work well (only one layer in the
preview) when there is a selection (though the actual transform works).
Also I am left to wonder how we should process this case of canvas
selection+transform on multi-layers. Indeed currently I am just creating
a floating selection (like we used to for the selection+transform case)
containing a transform result of the composited version of all selected
layers. This is a possible expected result, but another could be to get
several transformed layers (without composition). But then should the
"Floating Selection" concept allow for multiple Floating Selections?
Sooo many questions left to answer.
Proposed by Aryeom to make it more obvious of a possible issue when
running "Alpha to Selection" and ending up with an empty selection
(which is useless hence may means there might have been a problem in
one's workflow).
This warning will also occur for similar actions (i.e. the
Add|Substract|Intersect Alpha to|from|with Selection actions).
Also layers-flatten-image does not care about the layer selection and
layers-anchor works anyway only when there is a floating selection,
which means only one layer selected.
All selected layers' masks are combined first as union, then the result
is combined with the image selection according to requested boolean
operation.
Also use new gimp_channel_combine_items() function.
Don't just name all alpha-selection actions the same "Alpha to
Selection". Have some more accurate naming like "Substract Alpha from
Selection", etc.
Also improve the action names to make them more accurate as these names
are not only in menus anymore, but also in search actions (and we want
to avoid duplicate naming).
I created a new function gimp_channel_combine_items() which combines a
list of items with a channel. The list of items is first combined
together as an union set, then only combined with the channel with the
desired operation (this is important for operations such as intersect
which was broken in my previous commit because all items would be
intersected with each other and the selection, whereas we actually want
the union of all items to be intersected with the selection). This new
function is now used for "Alpha to Selection".
Also similarly to copy or color-pick on multi-layers, alpha to selection
will now use the composited result of the multi-layers as visible. In
particular it means that opacity, modes and visible properties on the
layers are taken into account. Alpha to selection on a single layer
though still works as previously, only taking the non-composited layer
data into account.
I am actually struggling if alpha to selection on uncomposited layers
(just an union on alpha to selection result for each layer) would not
make sense to on some workflows. To be experimented.
Finally it is to be noted that this function should also work on
channels and vectors (both single or multiple; and of course in such
cases, compositing does not matter) though I haven't tested yet. It
could even work with a source mix of layers, channels and vectors,
though our GUI does not allow such action currently.
This fixes bugs introduced in commit a7c59277fb where I obviously didn't
properly checked all the places where gimp_selection_float() was used
after its parameters changed.
Multi selection actually only really matter when "Merge within active
groups only" option is checked, in which case we are able to merge
layers within several layer groups simultaneously, and end up with
multi-selected merged layers.
Also not sure why both layers-merge-layers and image-merge-layers exist,
as they are exactly the same (exact same callback called when
activated).
When several layers are selected, select their render, similar to how
"edit-copy-visible" would have copied an image with only these layers
made visible.
Also apply the same logics to PDB function gimp_edit_copy() which can
now be used on several drawables at once.
These actions raise a GimpViewableDialog. For this to work, I made this
widget work with a list of GimpViewable, not a single viewable anymore
(so maybe the widget class name should change?).
When this list contains only a single GimpViewable, it will display
exactly like before, with a viewable preview. With several viewables,
the preview won't show.
This allows to add masks to all selected layers at once, with the same
basic options for all masks, as set in the dialog.
Both with the various action layers-lock-alpha, layers-opacity-* and
layers-mode-*, as well as through the layer tree view GUI (alpha lock
icon, opacity slider and layer mode combo box).
Not fully happy of the action sensitivity tests as they check for
content-lock, layer groups and such, but independently. So we could have
a case with 2 layers selected: a group + a content-locked layer. Yet the
layers-mask-apply action would be sensitive.
But instead of make more tests, I am nearly wondering if we should not
make action sensitivity more lax as the actual action will make the
tests anyway and just do nothing.
This commit just changes our saving API (i.e. the GimpSaveProcedure
class) to take an array of drawables as argument instead of a single
drawable.
It actually doesn't matter much for exporting as the whole API seems
more or less bogus there and all formats plug-ins mostly care only
whether they will merge/flatten all visible layers (the selected ones
don't really matter) or if the format supports layers of some sort. It
may be worth later strengthening a bit this whole logics, and maybe
allow partial exports for instance.
As for saving, it was not even looking at the passed GimpDrawable either
and was simply re-querying the active layer anyway.
Note that I don't implement the multi-selection saving in XCF yet in
this commit. I only updated the API. The reason is that the current
commit won't be backportable to gimp-2-10 because it is an API break. On
the other hand, the code to save multi-selection can still be backported
even though the save() API will only pass a single drawable (as I said
anyway, this argument was mostly bogus until now, hence it doesn't
matter much for 2.10 logics).
Properly pass the multi-selection information through the container
classes. Previous implementation was incomplete (most code paths with
multiple item selected were just ignored) and data was passed through
the "select-item" signal with the GimpViewable to NULL and the data to a
list of items (instead of being a GtkTreeIter otherwise). Having a
pointer data which changes meaning in the same function/class is not the
best idea. So instead "select-items" will have 2 list as parameters: a
list of items and a list of GtkTreePath to be used similarly and with
less ambiguity.
gegl:focus-blur blurs the image around a focal point. It can be
used to create fake depth-of-field effects.
Add a prop-gui constructor which uses a FOCUS controller to control
the focus geometry.
layers_opacity_cmd_callback(): get the select_type from
the GVariant instead of using the GVariant as an enum
directly (missed when porting, spotted by Massimo).
Fix the same bug in channels_select_cmd_callback()
and layers_mode_cmd_callback().
Add a new gimp_drawable_apply_operation_with_config() function,
which takes an operation node together with a config object, and
applies the operation using the config options, including both the
operation-specific options, and the common GimpOperationSettings
options.
Use the function in gimp_gegl_procedure_execute(), so that
reapplying a filter takes the common operation settings used
originally into account.
Add a new GimpOperationSettings class, to be used as a base class
for all operation-config types. The class provides options common
to all operations (namely, the clipping mode, input region, and
color options), which were previously stored in GimpFilterOptions,
and were therefore bound to the filter tool, instead of being
stored as part of the operation settings; as a result, these
options would have no effect when reapplying a filter, or when
restoring a preset.
The GimpOperationSettings options do not affect the operation
node, but rather the associated GimpDrawableFilter object. The
class provides a gimp_operation_settings_sync_drawable_filter()
function, which applies the options to the filter.
Modify all custom and auto-generated operation-config types to
derive from GimpOperationSettings, and modify the GimpConfig
functions of the former to account for the GimpOperationSettings
properties, using a set of protected functions provided by the
class.
Add a new GimpToolButton class, used for tool-buttons in the
toolbox, instead of implementing them directly in GimpToolPalette.
Each GimpToolButton is associated with a GimpToolItem, which can be
either an individual tool or a group.
When a tool button is associated with a group, it displays the
group's active tool, with an arrow at the corner. Clicking the
button selects the active tool, while clicking-and-holding, or
right-clicking, shows a menu of all the tools in the group.
Alternatively, the active tool can be changed using the scroll
wheel.
Move the logic for translating a tool identifier to a corresponding
action name to GimpToolInfo. It's currently only used in
tools-actions.c, but the next commits will use it in tool buttons.
Add GimpToolItem as a common base class for toolbox items.
Derive GimpToolInfo from GimpToolItem, representing an individual
tool. The next commits add support for tool groups, represented by
an alternative subclass of GimpToolItem.
Most of the tool-info properties remain in GimpToolInfo, however,
GimpToolItem takes care of tool-item visibility.
Don't disable color-to-alpha for grayscale drawable, since the
operation is applicable to grayscale images (in particular, it
doesn't add color where there was none), and since we no longer
distinguish between layers and channels according to the drawable
format when updating the filters actions.
... (used to add one automatically)
In GimpFilterTool and gimp_drawable_apply_operation(), use
gimp_drawable_filter_set_add_alpha() to add an alpha channel when
applying an operation that specifies "needs-alpha" to a drawable
that can have alpha.
Don't disable gegl:color-to-alpha (which has "needs-alpha") when
the drawable doesn't have an alpha channel, if one can be added.
Adds a number of modifier keys to the layer dockable's new "Merge Down"
button to access further functions, and adds among them a new action to
merge visible layers using the dialog's last values, akin to those
accompanying the New Layer and Add Layer Mask dialogs.
Modifier keys are bound as follows:
Shift -> Merge layer group
Ctrl -> Merge visible layers
Ctrl + Shift -> Merge visible layers from last used values
The Merge Down button is kept sensitive even when the current layer
can't be merged down to allow access to these functions
As they are both mutually exclusive and serve an almost identical
purpose, the "Merge down" and "Anchor Layer" are given mutually
exclusive visibility in menus, and the anchor button is replaced
with a merge down button in the Layers dockable whenever there is
no active floating selection
Jehan