Resolves#13633 (for now)
Same rationale as 975d1a4a, as diagnosed by Thomas Manni.
During 3.2 development, we can review and likely just set this as
the default value inside GimpDrawable.
For now, this is a limited bugfix for 3.0.x.
Existing logic to merge a pass-through group layer was wrong because it
was changing the global rendering of the image as though the group was
in fact in Normal mode.
Instead a pass-through group can be kinda considered as a Normal group
which would contain not only its children, but also all visible sister
layers below it. Therefore the new pass-through group merging will be
taking the real pass-through group render into the new layer (we don't
change the original group's mode before copying the render anymore), set
to Normal mode, then we remove not only the pass-through group but all
its big sister layers below it on same level.
Organizational-wise, it may seem unexpected because "merging" this group
leaks outside it (getting rid of not only the children but also the big
sisters and cousins). Nevertheless this is exactly how this group mode
works after all. So let's go full-in.
After discussing on IRC with Wormnest and NikcDC, we decided that it was
worth doing this specific merge the technically proper way, and we would
just educate people through the docs on why this group mode is very
particular this way.
After all, if someone absolutely wants the old-style merge, they can
always manually change the group to Normal mode first before merging.
But if they let to "Pass-Through", we should assume this is the render
they want.
Previously we used gimp_drawable_has_filters ()
to detect if a layer had any filters set.
However, this function only gets active
filters, leading to filters with their
visibility set to FALSE not being copied.
This patch checks the number of children
in the filter stack container instead to get
an accurate filter count.
This reverts commit 31df873d4c.
My commit was not wrong per-se (it didn't add any bug), but it was in
fact not useful either, and only adding a useless list copy for no good
reason.
I thought that action_select_object() was actually selecting objects,
but looking at implementation, it in fact doesn't. It only returns a
pointer to the object to select.
Somehow it works fine on my machine, but this is very likely the
culprit. gimp_image_get_selected_layers() returning directly the pointer
to selected layers, we should always make a copy before doing anything
which would change this selection!
This fixes all our GObject Introspection issues with GimpUnit which was
both an enum and an int-derived type of user-defined units *completing*
the enum values. GIR clearly didn't like this!
Now GimpUnit is a proper class and units are unique objects, allowing to
compare them with an identity test (i.e. `unit == gimp_unit_pixel ()`
tells us if unit is the pixel unit or not), which makes it easy to use,
just like with int, yet adding also methods, making for nicer
introspected API.
As an aside, this also fixes#10738, by having all the built-in units
retrievable even if libgimpbase had not been properly initialized with
gimp_base_init().
I haven't checked in details how GIR works to introspect, but it looks
like it loads the library to inspect and runs functions, hence
triggering some CRITICALS because virtual methods (supposed to be
initialized with gimp_base_init() run by libgimp) are not set. This new
code won't trigger any critical because the vtable method are now not
necessary, at least for all built-in units.
Note that GimpUnit is still in libgimpbase. It could have been moved to
libgimp in order to avoid any virtual method table (since we need to
keep core and libgimp side's units in sync, PDB is required), but too
many libgimpwidgets widgets were already using GimpUnit. And technically
most of GimpUnit logic doesn't require PDB (only the creation/sync
part). This is one of the reasons why user-created GimpUnit list is
handled and stored differently from other types of objects.
Globally this simplifies the code a lot too and we don't need separate
implementations of various utils for core and libgimp, which means less
prone to errors.
...to path.
Changes the names of
gimp_vectors_* () API to
gimp_path[s]_* (). Renames related files
to [path] instead of [vectors], along with
relevant enums and functions.
This commit renames the GimpVectors
object to GimpPath in both app/core and
in libgimp. It also renames the files
to gimppath.[ch] and updates the relevant
build and translation files.
There are still outstanding gimp_vectors_* ()
functions on the app side that need to be renamed
in a subsequent commit.
...to paths.
Similar to d0bdbdfd, but covering the
app/core versions of the API instead of
libgimp. Changes the names of
gimp_image_*_vectors () API to
gimp_image_*_path[s] ().
Also renames some related functions such
as gimp_image_pick_path (). The next step
will be to rename the gimp_vectors_* () to
gimp_path_* ().
For now, we can't keep certain GEGL ops
like Gradient as NDE filters, since they are
connected to tools. If the layer is copied
or saved as an .XCF while the tool is still
active, it attempts to save it and causes a
crash.
This patch adds a check to make sure the
copied filter has been commited and that
it's not a tool-based NDE filter before
being copied. It also adds some NULL
checks where gimp_drawable_filter_duplicate
is used to prevent NULL from being
added to the filter stack.
This patch implements an initial form of
non-destructive editing. Filters now stay active
instead of being immediately merged down.
A new column is added to the layer tree view, which
can be clicked to show a pop-over menu.
Filters can currently be hidden/shown, edited, reordered,
deleted, and merged down from this pop-over menu.
Currently, this works on layers and layer selections only.
Plenty of room for improvement!
- "Discard Text Information" work on all selected text layers.
- "Text to Path" creates as many paths as there are selected text layers.
- "Text along Path" still only works with exactly 1 text layer and 1 path
selected.
I started from mitch's patch (though code changed so it was not working,
yet I ended up with quite a different direction).
Modified from original proposition in #498:
* Do not mix opacity and brush size in a same action, one on horizontal
movement, the other on vertical. The problem is that it's hard to stay
perfectly horizontal or vertical, so you nearly necessarily change one
while changing the other and this would be frustrating.
* Do not just use modifiers, but modifiers + right click. The logics is
that left (or whatever is the first button) click is for the tool
actions. The middle click for navigation (panning, rotation, and even
layer navigation now). Right click for now is only for menu. With this
change, let's use right click for various settings-related changes
too. Also we already have people complaining with things like canvas
rotation happening unexpectedly even though it requires button clicks.
Imagine an action just made of modifiers! Many people would hit these
by mistake all the time!
* Focus on brush size only for now. Instead of just calling the action
repetitively with the "SElECT_NEXT" action as proposed in the original
patch by mitch, let's compute the actual size between the press and
release. This would allow to have a real visual hint and also would
make it a lot more useful and meaningful to be an on-canvas change.
Say you want to reproduce a stroke size on canvas. You can click the
center and expand to retrieve approximately the size without computing
it in pixels.
Limitations and future work:
* This is a first draft and I still want to test if it works well with
the "lock brush to view" and with scale factor > 1.
* I want to associate this with work done for #7034 so that visual hint
still appear even when we have no visual hint set.
* I am not so fond of with the way we use enum actions which doesn't
really make satisfying logics (I hacked a bit over it, but it's
getting ugly). I'm considering creating int/double actions to really
set some values with exact numbers through actions.
* Right now we need to stop the right click first. I want to be able to
stop the brush sizing with releasing Alt too.
* It would be nice to make this all more customizable, which is why I
called internal variable "mod1_setting". The goal will be to have
other types of actions possibly. Also it could be deactivatable for
people really not liking these or hitting these by mistake (while not
needing these). Same for the navigation shorcuts.
* Similarly the right-click menu could be deactivatable or switched to
other actions conditionally (through Preferences). It is doubtful how
useful it is (compared to using the same menus on top of the GUI)
though I don't want to just delete the option because some people
would clearly be used to it.
* I think we should start breaking down the whole tool events code a bit
more, in particular the function gimp_display_shell_canvas_tool_events().
* For more settings, a small on-canvas GUI could be of interest where
you could customize various values through sliders and buttons, and
also where you could put your favorite brushes or dynamics or whatnot.
It's not replacing the more complete dockable but could be a nice
quick version for fast editing.
In particular, if painting on a layer whose parent's pixels are locked,
we were blinking an empty lock spot, which is confusing. Now
gimp_item_is_content_locked() will also return the proper item (when
relevant, i.e. when returning TRUE) which is locked. It may or may not
the same item as passed in (it may also be a parent item in particular).
Similarly to how I improved "Select Top|Bottom Channel", we should set
the actions sensitive not only when the selected layers are not the
top/bottom ones, but also when there are no selected layers at all.
which will be shown when selected template pixel density don't
match the image pixel density.
Then user can either keep current image ppi and scale the
template or set image ppi to match the template ppi.
Density selector displayed only when template and image ppi
differs and template unit is matches one of real world units
(e.g. inch, mm, etc).
Closes: GNOME/gimp#1140
I had recently created gimp_item_is_ancestor() but realize it duplicates
gimp_viewable_is_ancestor() (which works on GimpItem since it's a parent
class). No need for duplicate code.
Making these actions multi-layer aware here means checking only exactly
1 layer is selected as these actions have GUI which shows dimensions and
preview (for the layer dimension action, i.e. layers-resize).
When several layers are selected, each layer will merge down with the
layer below it. This is similar to running Merge Down several times, one
for each selected layer.
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.
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.
