Move pixel conversion code from gimp_layer_convert() to the new
gimp_layer_convert_type() implementation and call
gimp_drawable_convert_type() from convert(). In convert_type(), simply
chain up to convert to gray and rgb and only implement indexed
conversion ourselves.
This may look like duplication of GimpItem::convert() but in fact will
fix the longstanding uglyness that GimpItem::convert() both transfers
an item to another image *and* converts the image type of drawables.
When this refactoring is done, GimpItem::convert() will only move an
item to another image, and its implementation in GimpDrawable classes
will call GimpDrawable::convert_type() to convert the pixels to
whatever format.
Takes a "dest_image" parameter anyway because for converting to
indexed we need the destination colormap. The default impl in
GimpDrawable can only convert to gray and rgb however.
The GimpDockWindow will need to have a GimpContext so add such a
property but call it "gimp-context" for now to avoid clashing with
"context" of GimpDock.
Introduce GimpDockWindow and make GimpDock inherit from it. Right now
it is just a GimpWindow, but window logic from GimpDock and subclasses
will gradually be moved here so that we eventually can make GimpDock a
GtkBin. That in turn will allow us to put several GimpDocks next to
each other in columns, or GimpDocks in an image window.
Don't blindly fill the dest region's alpha channel even if it has
none. Fixes longstanding bug that made things without alpha dropped
to indexed images to arrive broken.
The new functions reall convert the drawable this time, using the
previously renamed convert_tiles functions. Remove tile manager
fiddling from all callers and leave it there only for converting to
indexed.
Rename them from gimp_drawable_convert_foo() to
gimp_drawable_convert_tiles_foo() because they don't convert the
drawable itself, they convert its tiles into passed-in tiles.
In order to allow test cases to test GUI code, add
gimp_init_for_gui_testing() which is like gimp_init_for_testing() but
includes initializations of GUI parts.
* tests.[ch]: initialize base so we have a tile cache and add
parameter "gboolean use_cpu_accel" so we can test stuff both with
and without using CPU features.
* tests/test-layer-grouping.c: changed accordingly. Call g_thread_init()
so the tile cache works (and to be on the safe side in general).
* app/core/gimpgrouplayer.[ch]: add gimp_group_layer_suspend_resize()
and gimp_group_layer_resume_resize() and call them around functions
where all a group's children are transformed (translated, resized
etc). This way we go from the worst case of reallocating the
group's projection tiles once for each child down to exactly one
reallocation.
* app/core/Makefile.am
* app/core/core-enums.[ch]
* app/core/core-types.h
* app/core/gimpimage-undo-push.[ch]
* app/core/gimpgrouplayerundo.[ch]: add new undo class
GimpGroupLayerUndo which implements undos for suspend/resume of
group layers and calls them in reverse order when undoing.
Michael Natterer