and use it in the brush file plug-ins.

(cherry picked from commit 8195a562)

Namespace the header structs, s/GBRUSH/GIMP_BRUSH/,
s/GPATTERN/GIMP_PATTERN/.

(cherry picked from commit e759ce35)

Add support for reflecting brushes as part of their transformation.
The reflection is performed as the last step of the transformation,
across the vertical axis.

The option to reflect the brush is not exposed in the UI, or
through the PDB, but is intended to be used for linking the brush
transformation to the view transformation, in the next commit.

They are unreliable because every type checking cast discards them,
they are useless anyway, visual clutter, added inconsistently, and
generally suck. Wanted to do this a long time ago, it was a bad idea
in the first place.

You can now set any paint tool to mirror painting relatively
horizontal/vertical axis or a central point (any combination of these 3
symmetries).
This has been implemented as a new multi-stroke core, where every stroke
is actually handled as a multi-stroke (default of size 1).
This is also the first usage of custom guides for symmetry guiding.
Current version has to be activated in the playground.

This reverts commit 5a22fb57.

Add and use accessors for width, height, x_axis and y_axis.

It's likely that the removed call and function were causing
random drawing artefacts, but as this was once in a blue
moon bug, I have just a guess to go by however, testing
revealed no regressions, so pushing.

It's types are generally known because it's already included
in core-types.h.

such as masks and outlines. The cache is currently very stupid and
only cacheds the last transformed object. Add caches to GimpBrush for
its mask, its pixmap and its boundary, and remove the same caches and
a ton of members from GimpBrushCore. This involves adding lots of
const qualifiers because GimpBrush returns const pointers now for
trasnformed stuff.

and use them in GimpBrushCore when setting/unsetting a brush. They
will be used for managing some caches inside GimpBrush.

There is infinite room for optimization, but the API and pixel-perfect
functionality is there, which is step one.

as a separate commit because it reindents the entire header.

and pass a context whereever needed. Fix up gimp_tool_preset_new()
to actually make a copy of the context's active tool's options.

For generated brushes, dynamic input is applied on top of the set hardness as a factor.
For pixmaps, it influences the amount of blur applied to the stamp. Be warned, process is slow
for large pixmaps. The odd feature previously advertised as hardness is left in but disabled.
If I figure out what it should be exposed as, it might be made available again.

Add const to GimpCoords* params in GimpBrush::select_brush() and
want_null_motio().

2009-02-14  Sven Neumann  <sven@gimp.org>

	Bug 99457 – Support for dynamics on tilt

	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.c
	* app/core/gimpbrush-transform.[ch]
	* app/paint/gimpbrushcore.c
	* app/paint/gimpsmudge.c: applied patch from Alexia Death,
	separates brush scaling for x and y.


svn path=/trunk/; revision=28036

2009-02-05  Sven Neumann  <sven@gimp.org>

	Bug 520078 – Rotate brushes

	Applied patch from Alexia Death:

	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.c
	* app/core/gimpbrush-transform.[ch]: affine transformations for
	brushes. So far only scaling and rotation is supported. The
	transformation is done using nearest-neighbour. This is a
	regression and we need to add back interpolation before the next
	release.

	* app/paint/gimpsmudge.c
	* app/paint/gimppaintoptions.[ch]
	* app/paint/gimpbrushcore.[ch]: allow to control the brush
	rotation angle.

	* app/tools/gimppaintoptions-gui.c
	* app/tools/gimpbrushtool.c: added UI for controlling the
	brush rotation angle.

	* app/actions/tools-actions.c
	* app/actions/tools-commands.[ch]: add actions for controlling 
the
	brush rotation angle.


svn path=/trunk/; revision=27987

Applied patch from Alexia Death that prepares brushes for
arbitrary transforms by renaming stuff with 'scale' to
'transform'. Takes us one step closer to fixing bug #520078.

* app/core/gimpbrush.[ch]
* app/core/gimpbrushgenerated.c
* app/paint/gimpbrushcore.[ch]
* app/paint/gimpsmudge.c

* app/core/gimpbrush-transform.[ch]: New names of
* app/core/gimpbrush-scale.[ch]

* app/core/Makefile.am: Update.

svn path=/trunk/; revision=27975

2009-01-17  Michael Natterer  <mitch@gimp.org>

	* all files with a GPL header and all COPYING files:

	Change licence to GPLv3 (and to LGPLv3 for libgimp).

	Cleaned up some copyright headers and regenerated the parsers in
	the ImageMap plugin.


svn path=/trunk/; revision=27913

2007-03-14  Martin Nordholts  <martinn@svn.gnome.org>

	Made brushes upscalable by using scale_region. Downscaling still
	uses functions in app/base/brush-scale.c (because of better
	performance). Parametric brushes of course recalculates masks
	instead of using bitmap scaling. Fixes bug #65030.

	* app/core/gimpbrush.[ch]: Added a private scale_buf method which
	uses scale_region (with GIMP_INTERPOLATION_LINEAR) to scale its
	masks and pixmaps. Also added public virtual method scale_size to
	GimpBrush (overridden by GimpBrushGenerated) which calculates the
	buffer sizes for a given brush scaled with a given scale.

	* app/core/gimpbrushgenerated.c: Implemented the new scale_size
	method inherited from GimpBrush, and modified
	gimp_brush_generated_calc to use this helper function.

	* app/tools/gimppaintoptions-gui.c (gimp_paint_options_gui): Made
	the brush Scale-slider logarithmic.

	* app/paint/gimppaintoptions.c (gimp_paint_options_class_init):
	Changed Scale scale to [0.0, 10.0].

	* app/paint/gimpbrushcore.c:
	(gimp_brush_core_calc_brush_size): Refactored 'get brush size' code
	to where it belongs, in GimpBrush-classes, and allowed scales
	larger than 1.0.


svn path=/trunk/; revision=22113

2007-03-12  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.c
	* app/tools/gimppaintoptions-gui.c
	* app/base/brush-scale.[ch]
	* app/base/temp-buf.[ch]
	* app/paint/gimppaintoptions.c
	* app/paint/gimpbrushcore.c: revert last commit. The patch needs
	more review and it's easier to start from quare one than have
	patches on top of patches.


svn path=/trunk/; revision=22101

2007-03-11  Michael Schumacher  <schumaml@cvs.gnome.org>

	Made brushes scalable (both up and down) by using existing
	scaling routines, and also refactored some brush-code. Patch by
	Martin Nordholts. Fixes bug #65030.

	* app/paint/gimpbrushcore.c:
	(gimp_brush_core_calc_brush_length_scale) Refactored 'get brush
	size' code to where it belongs, in GimpBrush-classes, and renamed
	gimp_brush_core_calc_brush_size to
	gimp_brush_core_calc_brush_length_scale.

	* app/paint/gimppaintoptions.c (gimp_paint_options_class_init):
	Changed Scale scale to [0.0, 100.0].

	* app/base/temp-buf.[ch] (mask_buf_new): Change signature to also
	take a bpp parameter.

	* app/base/brush-scale.[ch]: Changed brush_scale_(mask|pixmap) to
	the new brush_scale_buf, which uses existing scaling routines
	(scale_region) instead of dedicated down-scaling only routines.

	* app/tools/gimppaintoptions-gui.c (gimp_paint_options_gui): Made
	the brush Scale-slider logarithmic.

	* app/core/gimpbrushgenerated.c: Implemented the new
	get_scaled_size method inherited from GimpBrush, and modified
	gimp_brush_generated_calc to use this helper function.

	* app/core/gimpbrush.[ch]: Added public virtual method
	get_scaled_size to GimpBrush, overridden by GimpBrushGenerated,
	which calculates the buffer sizes for a given brush scaled with a
	given scale. Also changed calls to brush_scale_(mask|pixmap) to
	the new brush_scale_buf.

svn path=/trunk/; revision=22099

2007-03-09  Michael Natterer  <mitch@gimp.org>

	* app/core/core-types.h: include "libgimpmath/gimpmathtypes.h"
	instead of "libgimpmath/gimpmath.h".

	* app/core/gimpbrush.h
	* app/paint/gimppaintcore.h
	* app/paint/gimpperspectiveclone.h
	* app/text/gimptext.h
	* app/tools/gimptransformtool.h: include gimpvector.h and
	gimpmatrix.h explicitely where they are needed in public structs.

	* app/*/*.c
	* tools/pdbgen/pdb/paths.pdb: include "libgimpmath/gimpmath.h"
	where needed.

	* app/pdb/paths_cmds.c: regenerated.


svn path=/trunk/; revision=22084

2006-12-09  Sven Neumann  <sven@gimp.org>

        * In all files, changed the standard copyright notice to say
        "GIMP - The GNU Image Manipulation Program".

2006-11-09  Michael Natterer  <mitch@gimp.org>

	Properly abstract brush scaling:

	* app/core/gimpbrush.[ch]: added virtual functions
	GimpBrush::scale_mask() and ::scale_pixmap() and default
	implementations which call the functions in base/brush-scale.c.

	* app/core/gimpbrushgenerated.c: factored out brush calculation to
	an internal utility function and call that function from ::dirty()
	and from the new ::scale_mask().

	* app/core/gimpbrushcore.c: use gimp_brush_scale_mask/pixmap()
	instead of using the lowlevel scale functions directly. Fixes the
	uglyness that we were scaling generated brushes instead of simply
	recalculating them in the right size.

2005-06-08  Sven Neumann  <sven@gimp.org>

	Removed "stingy-memory-use" all over the place. This feature was
	really not that useful anymore. The GUI for the preference option
	was already removed for GIMP 2.2.  Fixes bug #306617.

	* app/config/gimpbaseconfig.[ch]: set IGNORE flag on
	"stingy-memory-use".

	* app/config/gimpcoreconfig.h: added a comment that the
	font_path_writable variable is unused.

	* app/base/temp-buf.[ch]: removed code that used to deal with
	swapping temp-bufs to disk.

	* app/base/base.c: made base_config a static variable.

	* app/core/gimpdata.[ch]
	* app/core/gimpdatafactory.[ch]: removed stingy_memory_use
	parameter from data construction methods.

	* app/core/gimp-gradients.c
	* app/core/gimpbrush-load.[ch]
	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.[ch]
	* app/core/gimpbrushpipe.[ch]
	* app/core/gimpcontext.c
	* app/core/gimpgradient-load.[ch]
	* app/core/gimpgradient.[ch]
	* app/core/gimppalette-import.c
	* app/core/gimppalette.[ch]
	* app/core/gimppattern.[ch]: changed accordingly.

2005-04-15  Michael Natterer  <mitch@gimp.org>

	Added loading of Photoshop brushes. Fixes bug #163047:

	* app/core/Makefile.am
	* app/core/gimpbrush-load.[ch]: new files holding all brush
	loading code. Added .abr loader based on a patch by Adrian
	Likins. Didn't add a new brush subclass as in the original patch,
	but only a loading function which loads the brushes into standard
	GimpBrush objects. Did misc fixes to the code, needs further
	cleanup.

	* app/core/gimpbrush.[ch]: removed brush loading code here.

	* app/core/gimpbrushpipe.c: changed #includes accordingly.

	* app/core/gimp.c (gimp_real_initialize): register the new load
	functions and their extensions with the brush factory.

2004-07-26  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpdatafactory.h: added "gboolean writable" to the
	GimpDataFactoryLoaderEntry struct. Return a GList* instead of
	GimpData* from GimpDataLoadFunc so it's possible to load more than
	one data object from one file.

	* app/core/gimpdatafactory.c (gimp_data_factory_load_data):
	changed accordingly: add all items of the returned lists to the
	data factory. Make the data object writable only if it's in the
	writable path *and* its loader entry says it's a writable format
	*and* the returned list contains exactly one element.

	* app/core/gimp.c (gimp_real_initialize): declare all loader
	entries as writable where we have code to read and write exactly
	one object per file; all others are not writable.

	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.[ch]
	* app/core/gimpbrushpipe.[ch]
	* app/core/gimpgradient-load.[ch]
	* app/core/gimppalette.[ch]
	* app/core/gimppattern.[ch] (all load functions): return a list
	containing the loaded object instead of the object itself.

2002-12-02  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpdata.[ch]: use GError for reporting load/save
	errors. Added gimp_data_error_quark() and a GimpDataError enum.
	Made simple virtual functions out of save(), get_extension()
	and duplicate() because they don't need to be signals.

	* app/core/gimpbrush.[ch]
	* app/core/gimpbrushgenerated.[ch]
	* app/core/gimpbrushpipe.[ch]
	* app/core/gimpgradient.[ch]
	* app/core/gimppalette.[ch]
	* app/core/gimppattern.[ch]: changed accordingly. Set data->dirty
	to FALSE in each _load() function.

	* app/core/gimpdatafactory.[ch]: report GError messages here.
	Changed the ugly factory->path pointer location hack to
	factory->path_property_name and get the path from
	factory->gimp->config. Added gimp_data_factory_data_duplicate()
	implementation which was already declared in the header.

	* app/core/gimp.c: pass the path property name to
	gimp_data_factory_new().

	* app/widgets/gimpdatafactoryview.c: removed the duplicate
	implementation and call gimp_data_factory_data_duplicate().

	* app/core/gimpgradient.[ch]: added gimp_gradient_save_as_pov().

	* app/gui/gradients-commands.c: removed save_as_pov implementation
	and call gimp_gradient_save_as_pov().