Apply and heavily modify patch from remyDev which adds "lock position"
to GimpItem, similar to "lock content". Lock position disables all
sorts of translation and transform, from the GUI and the PDB.
Cleaned up some aspects of the lock content code as well because a
second instance of similar code always shows what went wrong the first
time.
The last tile is not followed by a next tile, so we don't have an
offset to the next tile and have to guess the number of bytes to load,
using the largest possible tile. That guessing was based on a maximum
of four bytes per pixel.
In fact, it broke much more than that because the way XCF loading
replaced the image's mask prevented the image's "mask-changed" signal
from ever being emitted. Add private API gimp_image_take_mask() which
properly sets the mask and use it for image construction and the XCF
selection loading hack.
Also, make group layer type conversion much less hackish by using the
same kind of temporary states that are used for reallocating its
projection on size change.
because it would require really evil hacks to honor these properties
in the gegl projection if they were on the mask, and because they
actually belong to the layer.
Conditional jump or move depends on uninitialised value(s)
==28817== at 0x6AA386: gimp_coords_manhattan_dist (gimp/app/core/gimpcoords.c:175)
==28817== by 0x6AB428: gimp_coords_bezier_is_straight (gimp/app/core/gimpcoords-interpolate.c:213)
==28817== by 0x67663B: gimp_bezier_stroke_segment_nearest_point_get (gimp/app/vectors/gimpbezierstroke.c:676)
==28817== by 0x676C86: gimp_bezier_stroke_nearest_point_get (gimp/app/vectors/gimpbezierstroke.c:631)
==28817== by 0x4D79E3: gimp_draw_tool_on_vectors_curve (gimp/app/tools/gimpdrawtool.c:1175)
==28817== by 0x4D7CD5: gimp_draw_tool_on_vectors (gimp/app/tools/gimpdrawtool.c:1242)
==28817== by 0x511CE7: gimp_vector_tool_oper_update (gimp/app/tools/gimpvectortool.c:989)
==28817== by 0x50B059: gimp_tool_oper_update (gimp/app/tools/gimptool.c:970)
==28817== by 0x546F3C: gimp_display_shell_canvas_tool_events (gimp/app/display/gimpdisplayshell-tool-events.c:401)
==28817== by 0x52A42E2: _gtk_marshal_BOOLEAN__BOXED (gtk-2-24/gtk/gtkmarshalers.c:86)
Steps to reproduce:
G_SLICE=always-malloc valgrind gimp-2.7 app/tests/*/*.xcf
B (Activate Path tool)
Introduced two virtual functions to a GimpViewable
'set_expanded' and 'get_expanded'
and a PROP_GROUP_ITEM_FLAGS to load/save the expanded state
of layer_groups and use them.
This patch limits the string length to 16 MB. If problems occur in the
future because 16 MB is small, increase the limit by modifying
MAX_XCF_STRING_LEN.
and get rid of the brainfuck idea that app/ has to use _gimp_unit_foo()
functions, passing a gimp pointer. Instead, simply use the libgimpbase
API all over the place. Should we ever allow more than one gimp instance,
they will simply have to share one unit database.
Michael Natterer