Also add slightly richer parse errors now that we can include a string
literal with returned errors.
This will allow us to use TRY() when working with JSON data.
Derivatives of Core::Object should be constructed through
ClassName::construct(), to avoid handling ref-counted objects with
refcount zero. Fixing the visibility means that misuses like this are
more difficult.
They were previously taking up 9% of samples in a profile of PixelPaint
while selecting a mask, and as a result of moving them to the header
they were inlined, which effectively eliminated them from the profile.
Previously, when the last layer got deleted, the active layer was
set to nullptr, causing a crash.
Now, we create a new transparent background layer with the image
dimensions instead.
Previously we only had `Point::end_point_for_square_aspect_ratio`,
which was convenient for PixelPaint but assumed the aspect ratio
was always fixed at 1. This patch replaces it with a new mthod that
takes in an arbitrary aspect ratio and computes the end point based
off that.
There's some explicit casting going on in `Point.cpp` to ensure that
the types line up, since we're templating Point based on `T`.`
The previous implementation of automatic scrolling in LayerListWidget
relied on mousemove events to perform the scrolling, which didn't
produce the expected behavior. Instead use the new auto scroll timer.
Without this check we would do an unnecessary partial second round
trip because of the call chain:
LayerListWidget::set_selected_layer() ->
LayerListWidget::on_layer_select() ->
ImageEditor::set_active_layer() ->
ImageEditor::on_active_layer_change() ->
LayerListWidget::set_selected_layer()
This just provides some nice visual feedback when you are in the
middle of selecting a color. An eyedropper might not be the ideal
choice here, but among the cursors we already have it is the
best one.
This just allows us to ask the image editor to update the tool's
current cursor. This is useful in cases where a tool may want to
change it's cursor for some operation, and wants to invalidate the
active cursor cached in the ImageEditor.
Now we add a little marker to show the current sample position of
the CloneTool. The current implementation for updating the cursor
location is really dumb since it just updates the whole editor,
but that's a yak on the stack to fix.
There's still a lot to be desired in terms of functionality and
usability, but this is a start. When using the clone tool, you
can press Alt to sample a location, and then the brush will clone
the color from there.
