... and G_TYPE_INSTANCE_GET_PRIVATE()
g_type_class_add_private() and G_TYPE_INSTANCE_GET_PRIVATE() were
deprecated in GLib 2.58. Instead, use
G_DEFINE_[ABSTRACT_]TYPE_WITH_PRIVATE(), and
G_ADD_PRIVATE[_DYNAMIC](), and the implictly-defined
foo_get_instance_private() functions, all of which are available in
the GLib versions we depend on.
This commit only covers types registered using one of the
G_DEFINE_FOO() macros (i.e., most types), but not types with a
custom registration function, of which we still have a few -- GLib
currently only provides a (non-deprecated) public API for adding a
private struct using the G_DEFINE_FOO() macros.
Note that this commit was 99% auto-generated (because I'm not
*that* crazy :), so if there are any style mismatches... we'll have
to live with them for now.
In GimpCanvasTransformPreview, add the necessary bits to the
preview graph so that, when transforming a layer, the layer's
opacity and mask are correctly applied to the preview. Note that
since we're still not rendering the preview as part of the image
graph, the output is not always accurate, but it should be good
enough in most cases.
In GimpCanvasTransformPreview, when the image mask is not empty,
make sure to align it with the drawable using a gegl:translate
node, before combining both at the gegl:opacity node. Otherwise,
the mask is applied at the wrong offset when the drawable's offset
is not (0, 0).
Before you get too exceited -- no, this commit doesn't integrate
transform previews into the image graph :) We still use a
separate canvas-item overlay, just like before, but instead of
using an impromptu implementation to render the preview, we use
gegl:transform. We properly adjust the matrix passed to the op
according to the display scale, so that we still render only as
much as needed.
This is both notably faster than the current code, and, for
perspective transforms, more accurate.
In GimpCanvasTransformPreview, use the transform matrix to
determine if we're doing a perspective transform, rather than
relying on a separate property, so that we don't use the slow
perspective path unnecessarily.
Consequently, remove the does_perspective member of
GimpTransformTool, since it's no longer used.
and get the shell from gimp_canvas_item_get_shell() if needed. Remove
some cairo_translate() that didn't have any effect and were leftovers
from a very early canvas item code.
Simplify the loops without any significant loss in performance, separating
the positive and negative X directions to treat each correctly. Fixes this
bug.
Instead, add drawable, transform, x1, y1 etc. properties. This is
cleaner and has the nice side effect of not leaving artifacts, because
the changed state of the transform tool doesn't affect the extents
calculation any longer.
And remove all the complicated handling code entirely. This makes
GimpTransformTool a lot less complex. As a nice side effect, the
preview is now always 100% in sync with the grid and handles.
