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app/vectors/gimpbezierstroke.[ch] app/vectors/gimpstroke.[ch] 

2003-05-16  Michael Natterer  <mitch@gimp.org>

	* app/vectors/gimpbezierstroke.[ch]
	* app/vectors/gimpstroke.[ch]
	* app/vectors/gimpvectors-preview.c
	* app/vectors/gimpvectors.[ch]: massive cleanup / code review:
	Made default implementations real ones. Don't add "const" to
	call-by-value parameters. Iterate lists using for() loops. Moved
	variables to local scopes. Removed tabs. Indentation. Stuff...

	* app/vectors/gimpstroke.[ch]: added unused "gboolean closed"
	member.
This commit is contained in:
Michael Natterer 2003-05-16 16:49:04 +00:00 committed by Michael Natterer
parent 9981c4645c
commit 0c67310555
8 changed files with 679 additions and 706 deletions
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13
ChangeLog
View File

@ -1,3 +1,16 @@
2003-05-16 Michael Natterer <mitch@gimp.org>
* app/vectors/gimpbezierstroke.[ch]
* app/vectors/gimpstroke.[ch]
* app/vectors/gimpvectors-preview.c
* app/vectors/gimpvectors.[ch]: massive cleanup / code review:
Made default implementations real ones. Don't add "const" to
call-by-value parameters. Iterate lists using for() loops. Moved
variables to local scopes. Removed tabs. Indentation. Stuff...
* app/vectors/gimpstroke.[ch]: added unused "gboolean closed"
member.
2003-05-16 Michael Natterer <mitch@gimp.org>
* app/core/gimpimage-mask.[ch] (gimp_image_mask_extract): added

73
app/vectors/gimpbezierstroke.c
View File

@ -19,24 +19,19 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "glib-object.h"
#include <glib-object.h>
#include "vectors-types.h"
#include "gimpanchor.h"
#include "gimpbezierstroke.h"
#define INPUT_RESOLUTION 256
/* private variables */
static GimpStrokeClass *parent_class = NULL;
/* local prototypes */
static void gimp_bezier_stroke_class_init (GimpBezierStrokeClass *klass);
@ -44,15 +39,18 @@ static void gimp_bezier_stroke_init (GimpBezierStroke *bezier_stroke)
static void gimp_bezier_stroke_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature);
GimpAnchorFeatureType feature);
static void gimp_bezier_stroke_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature);
GimpAnchorFeatureType feature);
static void gimp_bezier_stroke_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature);
static GArray * gimp_bezier_stroke_interpolate (const GimpStroke *stroke,
const gdouble precision,
gboolean *closed);
static void gimp_bezier_stroke_finalize (GObject *object);
@ -61,27 +59,21 @@ static void gimp_bezier_coords_mix (const gdouble amul,
const gdouble bmul,
const GimpCoords *b,
GimpCoords *ret_val);
static void gimp_bezier_coords_average (const GimpCoords *a,
const GimpCoords *b,
GimpCoords *ret_average);
static void gimp_bezier_coords_add (const GimpCoords *a,
const GimpCoords *b,
GimpCoords *ret_add);
static void gimp_bezier_coords_difference (const GimpCoords *a,
const GimpCoords *b,
GimpCoords *ret_difference);
GimpCoords *difference);
static void gimp_bezier_coords_scale (const gdouble f,
const GimpCoords *a,
GimpCoords *ret_multiply);
static void gimp_bezier_coords_subdivide (const GimpCoords *beziercoords,
const gdouble precision,
GArray **ret_coords);
static void gimp_bezier_coords_subdivide2 (const GimpCoords *beziercoords,
const gdouble precision,
GArray **ret_coords,
@ -89,15 +81,17 @@ static void gimp_bezier_coords_subdivide2 (const GimpCoords *beziercoords,
static gdouble gimp_bezier_coords_scalarprod (const GimpCoords *a,
const GimpCoords *b);
static gdouble gimp_bezier_coords_length (const GimpCoords *a);
static gdouble gimp_bezier_coords_length2 (const GimpCoords *a);
static gboolean gimp_bezier_coords_is_straight (const GimpCoords *beziercoords,
const gdouble precision);
/* private variables */
static GimpStrokeClass *parent_class = NULL;
GType
gimp_bezier_stroke_get_type (void)
{
@ -143,7 +137,6 @@ gimp_bezier_stroke_class_init (GimpBezierStrokeClass *klass)
stroke_class->anchor_move_absolute = gimp_bezier_stroke_anchor_move_absolute;
stroke_class->anchor_convert = gimp_bezier_stroke_anchor_convert;
stroke_class->interpolate = gimp_bezier_stroke_interpolate;
}
static void
@ -192,22 +185,21 @@ gimp_bezier_stroke_new (const GimpCoords *start)
GimpStroke *
gimp_bezier_stroke_new_from_coords (const GimpCoords *coords,
const gint ncoords)
gint n_coords)
{
GimpBezierStroke *bezier_stroke;
GimpStroke *stroke = NULL;
GimpAnchor *last_anchor;
gint count;
if (ncoords >= 1)
if (n_coords >= 1)
{
stroke = gimp_bezier_stroke_new (coords);
bezier_stroke = GIMP_BEZIER_STROKE (stroke);
last_anchor = (GimpAnchor *) (stroke->anchors->data);
count = 1;
while (count < ncoords)
while (count < n_coords)
{
last_anchor = gimp_bezier_stroke_extend (bezier_stroke,
&coords[count++],
@ -237,6 +229,7 @@ gimp_bezier_stroke_extend (GimpBezierStroke *bezier_stroke,
loose_end = 0;
listneighbor = g_list_last (stroke->anchors);
if (listneighbor->data == neighbor)
{
loose_end = 1;
@ -284,14 +277,7 @@ gimp_bezier_stroke_extend (GimpBezierStroke *bezier_stroke,
{
case EXTEND_SIMPLE:
anchor = g_new0 (GimpAnchor, 1);
anchor->position.x = coords->x;
anchor->position.y = coords->y;
anchor->position.pressure = 1.0;
anchor->position.xtilt = 0.5;
anchor->position.ytilt = 0.5;
anchor->position.wheel = 0.5;
anchor->selected = FALSE;
anchor->position = *coords;
switch (control_count)
{
@ -348,11 +334,11 @@ gimp_bezier_stroke_extend (GimpBezierStroke *bezier_stroke,
"%d successive control handles", control_count);
}
}
return anchor;
}
else
return NULL; /* No loose end to add an anchor to... */
return NULL; /* No loose end to add an anchor to... */
}
@ -360,7 +346,7 @@ static void
gimp_bezier_stroke_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature)
GimpAnchorFeatureType feature)
{
GimpCoords delta, coord1, coord2;
GList *anchor_list;
@ -434,16 +420,16 @@ static void
gimp_bezier_stroke_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature)
GimpAnchorFeatureType feature)
{
GimpCoords deltacoord;
gimp_bezier_coords_difference (coord, &(anchor->position), &deltacoord);
gimp_bezier_coords_difference (coord, &anchor->position, &deltacoord);
gimp_bezier_stroke_anchor_move_relative (stroke, anchor,
&deltacoord, feature);
}
void
static void
gimp_bezier_stroke_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature)
@ -464,18 +450,15 @@ gimp_bezier_stroke_anchor_convert (GimpStroke *stroke,
if (g_list_next (anchor_list))
((GimpAnchor *) g_list_next (anchor_list)->data)->position =
anchor->position;
break;
default:
g_printerr ("gimp_bezier_stroke_anchor_convert: "
"unimplemented anchor conversion %d\n", feature);
}
}
GArray *
static GArray *
gimp_bezier_stroke_interpolate (const GimpStroke *stroke,
gdouble precision,
gboolean *ret_closed)
@ -628,14 +611,15 @@ gimp_bezier_coords_length2 (const GimpCoords *a)
upscaled_a.xtilt = a->xtilt * INPUT_RESOLUTION;
upscaled_a.ytilt = a->ytilt * INPUT_RESOLUTION;
upscaled_a.wheel = a->wheel * INPUT_RESOLUTION;
return (gimp_bezier_coords_scalarprod (&upscaled_a, &upscaled_a));
return gimp_bezier_coords_scalarprod (&upscaled_a, &upscaled_a);
}
static gdouble
gimp_bezier_coords_length (const GimpCoords *a)
{
return (sqrt (gimp_bezier_coords_length2 (a)));
return sqrt (gimp_bezier_coords_length2 (a));
}
@ -792,4 +776,3 @@ gimp_bezier_coords_subdivide (const GimpCoords *beziercoords,
{
gimp_bezier_coords_subdivide2 (beziercoords, precision, ret_coords, 10);
}

11
app/vectors/gimpbezierstroke.h
View File

@ -22,12 +22,6 @@
#ifndef __GIMP_BEZIER_STROKE_H__
#define __GIMP_BEZIER_STROKE_H__
#include "config.h"
#include "glib-object.h"
#include "vectors-types.h"
#include "gimpstroke.h"
@ -55,9 +49,7 @@ struct _GimpBezierStrokeClass
GType gimp_bezier_stroke_get_type (void) G_GNUC_CONST;
GimpStroke * gimp_bezier_stroke_new (const GimpCoords *start);
GimpStroke * gimp_bezier_stroke_new_from_coords (const GimpCoords *coords,
const gint ncoords);
@ -66,8 +58,5 @@ GimpAnchor * gimp_bezier_stroke_extend (GimpBezierStroke *bezier_stroke,
GimpAnchor *neighbor,
GimpVectorExtendMode extend_mode);
GArray * gimp_bezier_stroke_interpolate (const GimpStroke *stroke,
const gdouble precision,
gboolean *ret_closed);
#endif /* __GIMP_BEZIER_STROKE_H__ */

466
app/vectors/gimpstroke.c
View File

@ -42,19 +42,42 @@ static GimpAnchor * gimp_stroke_real_anchor_get (const GimpStroke *stroke,
const GimpCoords *coord);
static GimpAnchor * gimp_stroke_real_anchor_get_next (const GimpStroke *stroke,
const GimpAnchor *prev);
static void gimp_stroke_real_anchor_select (GimpStroke *stroke,
GimpAnchor *anchor,
gboolean exclusive);
static void gimp_stroke_real_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature);
const GimpCoords *delta,
GimpAnchorFeatureType feature);
static void gimp_stroke_real_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature);
const GimpCoords *delta,
GimpAnchorFeatureType feature);
static void gimp_stroke_real_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature);
static void gimp_stroke_real_anchor_delete (GimpStroke *stroke,
GimpAnchor *anchor);
static gdouble gimp_stroke_real_get_length (const GimpStroke *stroke);
static gdouble gimp_stroke_real_get_distance (const GimpStroke *stroke,
const GimpCoords *coord);
static GArray * gimp_stroke_real_interpolate (const GimpStroke *stroke,
gdouble precision,
gboolean *closed);
static GimpAnchor * gimp_stroke_real_temp_anchor_get (const GimpStroke *stroke);
static GimpAnchor * gimp_stroke_real_temp_anchor_set (GimpStroke *stroke,
const GimpCoords *coord);
static gboolean gimp_stroke_real_temp_anchor_fix (GimpStroke *stroke);
static GimpStroke * gimp_stroke_real_duplicate (const GimpStroke *stroke);
static GimpStroke * gimp_stroke_real_make_bezier (const GimpStroke *stroke);
static GList * gimp_stroke_real_get_draw_anchors (const GimpStroke *stroke);
static GList * gimp_stroke_real_get_draw_controls (const GimpStroke *stroke);
static GArray * gimp_stroke_real_get_draw_lines (const GimpStroke *stroke);
/* private variables */
static GObjectClass *parent_class = NULL;
static GimpObjectClass *parent_class = NULL;
GType
@ -105,25 +128,26 @@ gimp_stroke_class_init (GimpStrokeClass *klass)
klass->anchor_get = gimp_stroke_real_anchor_get;
klass->anchor_get_next = gimp_stroke_real_anchor_get_next;
klass->anchor_select = gimp_stroke_real_anchor_select;
klass->anchor_move_relative = gimp_stroke_real_anchor_move_relative;
klass->anchor_move_absolute = gimp_stroke_real_anchor_move_absolute;
klass->anchor_convert = NULL;
klass->anchor_delete = NULL;
klass->anchor_convert = gimp_stroke_real_anchor_convert;
klass->anchor_delete = gimp_stroke_real_anchor_delete;
klass->get_length = NULL;
klass->get_distance = NULL;
klass->interpolate = NULL;
klass->get_length = gimp_stroke_real_get_length;
klass->get_distance = gimp_stroke_real_get_distance;
klass->interpolate = gimp_stroke_real_interpolate;
klass->temp_anchor_get = NULL;
klass->temp_anchor_set = NULL;
klass->temp_anchor_fix = NULL;
klass->temp_anchor_get = gimp_stroke_real_temp_anchor_get;
klass->temp_anchor_set = gimp_stroke_real_temp_anchor_set;
klass->temp_anchor_fix = gimp_stroke_real_temp_anchor_fix;
klass->duplicate = gimp_stroke_real_duplicate;
klass->make_bezier = NULL;
klass->make_bezier = gimp_stroke_real_make_bezier;
klass->get_draw_anchors = NULL;
klass->get_draw_controls = NULL;
klass->get_draw_lines = NULL;
klass->get_draw_anchors = gimp_stroke_real_get_draw_anchors;
klass->get_draw_controls = gimp_stroke_real_get_draw_controls;
klass->get_draw_lines = gimp_stroke_real_get_draw_lines;
}
static void
@ -131,11 +155,16 @@ gimp_stroke_init (GimpStroke *stroke)
{
stroke->anchors = NULL;
stroke->temp_anchor = NULL;
stroke->closed = FALSE;
};
static void
gimp_stroke_finalize (GObject *object)
{
GimpStroke *stroke;
stroke = GIMP_STROKE (object);
#ifdef __GNUC__
#warning FIXME: implement gimp_stroke_finalize()
#endif
@ -158,59 +187,58 @@ gimp_stroke_get_memsize (GimpObject *object)
}
/* Calling the virtual functions */
GimpAnchor *
gimp_stroke_anchor_get (const GimpStroke *stroke,
const GimpCoords *coord)
{
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
return (GIMP_STROKE_GET_CLASS (stroke))->anchor_get (stroke, coord);
return GIMP_STROKE_GET_CLASS (stroke)->anchor_get (stroke, coord);
}
static GimpAnchor *
gimp_stroke_real_anchor_get (const GimpStroke *stroke,
const GimpCoords *coord)
{
gdouble dx, dy, mindist = -1;
gdouble dx, dy;
gdouble mindist = -1;
GList *anchors;
GList *list;
GimpAnchor *anchor = NULL;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
list = gimp_stroke_get_draw_controls (stroke);
anchors = gimp_stroke_get_draw_controls (stroke);
while (list)
for (list = anchors; list; list = g_list_next (list))
{
dx = coord->x - ((GimpAnchor *) list->data)->position.x;
dy = coord->y - ((GimpAnchor *) list->data)->position.y;
if (mindist < 0 || mindist > dx * dx + dy * dy)
{
mindist = dx * dx + dy * dy;
anchor = (GimpAnchor *) list->data;
}
list = list->next;
}
g_list_free (list);
g_list_free (anchors);
list = gimp_stroke_get_draw_anchors (stroke);
anchors = gimp_stroke_get_draw_anchors (stroke);
while (list)
for (list = anchors; list; list = g_list_next (list))
{
dx = coord->x - ((GimpAnchor *) list->data)->position.x;
dy = coord->y - ((GimpAnchor *) list->data)->position.y;
if (mindist < 0 || mindist > dx * dx + dy * dy)
{
mindist = dx * dx + dy * dy;
anchor = (GimpAnchor *) list->data;
}
list = list->next;
}
g_list_free (list);
g_list_free (anchors);
return anchor;
}
@ -220,34 +248,32 @@ GimpAnchor *
gimp_stroke_anchor_get_next (const GimpStroke *stroke,
const GimpAnchor *prev)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return stroke_class->anchor_get_next (stroke, prev);
return GIMP_STROKE_GET_CLASS (stroke)->anchor_get_next (stroke, prev);
}
static GimpAnchor *
gimp_stroke_real_anchor_get_next (const GimpStroke *stroke,
const GimpAnchor *prev)
{
GList *listitem;
GList *list;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
if (prev)
{
listitem = g_list_find (stroke->anchors, prev);
if (listitem)
listitem = g_list_next (listitem);
list = g_list_find (stroke->anchors, prev);
if (list)
list = g_list_next (list);
}
else
listitem = stroke->anchors;
{
list = stroke->anchors;
}
if (listitem)
return (GimpAnchor *) listitem->data;
if (list)
return (GimpAnchor *) list->data;
return NULL;
}
@ -258,65 +284,58 @@ gimp_stroke_anchor_select (GimpStroke *stroke,
GimpAnchor *anchor,
gboolean exclusive)
{
GimpStrokeClass *stroke_class;
g_return_if_fail (GIMP_IS_STROKE (stroke));
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
GIMP_STROKE_GET_CLASS (stroke)->anchor_select (stroke, anchor, exclusive);
}
if (stroke_class->anchor_select)
stroke_class->anchor_select (stroke, anchor, exclusive);
else
static void
gimp_stroke_real_anchor_select (GimpStroke *stroke,
GimpAnchor *anchor,
gboolean exclusive)
{
GList *cur_ptr;
GList *list;
cur_ptr = stroke->anchors;
list = stroke->anchors;
if (exclusive)
{
while (cur_ptr)
while (list)
{
((GimpAnchor *) cur_ptr->data)->selected = FALSE;
cur_ptr = g_list_next (cur_ptr);
((GimpAnchor *) list->data)->selected = FALSE;
list = g_list_next (list);
}
}
if ((cur_ptr = g_list_find (stroke->anchors, anchor)) != NULL)
((GimpAnchor *) cur_ptr->data)->selected = TRUE;
}
list = g_list_find (stroke->anchors, anchor);
if (list)
((GimpAnchor *) list->data)->selected = TRUE;
}
void
gimp_stroke_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature)
const GimpCoords *delta,
GimpAnchorFeatureType feature)
{
GimpStrokeClass *stroke_class;
g_return_if_fail (GIMP_IS_STROKE (stroke));
g_return_if_fail (anchor != NULL);
g_return_if_fail (g_list_find (stroke->anchors, anchor));
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
stroke_class->anchor_move_relative (stroke, anchor, deltacoord, feature);
GIMP_STROKE_GET_CLASS (stroke)->anchor_move_relative (stroke, anchor,
delta, feature);
}
static void
gimp_stroke_real_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature)
const GimpCoords *delta,
GimpAnchorFeatureType feature)
{
/*
* There should be a test that ensures that the anchor is owned by
* the stroke...
*/
if (anchor) {
anchor->position.x += deltacoord->x;
anchor->position.y += deltacoord->y;
}
anchor->position.x += delta->x;
anchor->position.y += delta->y;
}
@ -324,33 +343,25 @@ void
gimp_stroke_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature)
GimpAnchorFeatureType feature)
{
GimpStrokeClass *stroke_class;
g_return_if_fail (GIMP_IS_STROKE (stroke));
g_return_if_fail (anchor != NULL);
g_return_if_fail (g_list_find (stroke->anchors, anchor));
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
stroke_class->anchor_move_absolute (stroke, anchor, coord, feature);
GIMP_STROKE_GET_CLASS (stroke)->anchor_move_absolute (stroke, anchor,
coord, feature);
}
static void
gimp_stroke_real_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature)
GimpAnchorFeatureType feature)
{
/*
* There should be a test that ensures that the anchor is owned by
* the stroke...
*/
if (anchor) {
anchor->position.x = coord->x;
anchor->position.y = coord->y;
}
}
void
@ -358,18 +369,17 @@ gimp_stroke_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature)
{
GimpStrokeClass *stroke_class;
g_return_if_fail (GIMP_IS_STROKE (stroke));
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
GIMP_STROKE_GET_CLASS (stroke)->anchor_convert (stroke, anchor, feature);
}
if (stroke_class->anchor_convert)
stroke_class->anchor_convert (stroke, anchor, feature);
else
static void
gimp_stroke_real_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature)
{
g_printerr ("gimp_stroke_anchor_convert: default implementation\n");
return;
}
@ -377,36 +387,33 @@ void
gimp_stroke_anchor_delete (GimpStroke *stroke,
GimpAnchor *anchor)
{
GimpStrokeClass *stroke_class;
g_return_if_fail (GIMP_IS_STROKE (stroke));
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
GIMP_STROKE_GET_CLASS (stroke)->anchor_delete (stroke, anchor);
}
if (stroke_class->anchor_delete)
stroke_class->anchor_delete (stroke, anchor);
else
static void
gimp_stroke_real_anchor_delete (GimpStroke *stroke,
GimpAnchor *anchor)
{
g_printerr ("gimp_stroke_anchor_delete: default implementation\n");
return;
}
gdouble
gimp_stroke_get_length (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), 0.0);
g_return_val_if_fail (GIMP_IS_STROKE (stroke), 0);
return GIMP_STROKE_GET_CLASS (stroke)->get_length (stroke);
}
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
if (stroke_class->get_length)
return stroke_class->get_length (stroke);
else
static gdouble
gimp_stroke_real_get_length (const GimpStroke *stroke)
{
g_printerr ("gimp_stroke_get_length: default implementation\n");
return 0;
return 0.0;
}
@ -414,54 +421,54 @@ gdouble
gimp_stroke_get_distance (const GimpStroke *stroke,
const GimpCoords *coord)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), 0.0);
g_return_val_if_fail (GIMP_IS_STROKE (stroke), 0);
return GIMP_STROKE_GET_CLASS (stroke)->get_distance (stroke, coord);
}
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
if (stroke_class->get_distance)
return stroke_class->get_distance (stroke, coord);
else
static gdouble
gimp_stroke_real_get_distance (const GimpStroke *stroke,
const GimpCoords *coord)
{
g_printerr ("gimp_stroke_get_distance: default implementation\n");
return 0;
return 0.0;
}
GArray *
gimp_stroke_interpolate (const GimpStroke *stroke,
const gdouble precision,
gdouble precision,
gboolean *ret_closed)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), 0);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
if (stroke_class->interpolate)
return stroke_class->interpolate (stroke, precision,
return GIMP_STROKE_GET_CLASS (stroke)->interpolate (stroke, precision,
ret_closed);
else
}
static GArray *
gimp_stroke_real_interpolate (const GimpStroke *stroke,
gdouble precision,
gboolean *ret_closed)
{
g_printerr ("gimp_stroke_interpolate: default implementation\n");
return 0;
return NULL;
}
GimpAnchor *
gimp_stroke_temp_anchor_get (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->temp_anchor_get (stroke);
}
if (stroke_class->temp_anchor_get)
return stroke_class->temp_anchor_get (stroke);
else
static GimpAnchor *
gimp_stroke_real_temp_anchor_get (const GimpStroke *stroke)
{
g_printerr ("gimp_stroke_temp_anchor_get: default implementation\n");
return NULL;
@ -472,15 +479,15 @@ GimpAnchor *
gimp_stroke_temp_anchor_set (GimpStroke *stroke,
const GimpCoords *coord)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->temp_anchor_set (stroke, coord);
}
if (stroke_class->temp_anchor_set)
return stroke_class->temp_anchor_set (stroke, coord);
else
static GimpAnchor *
gimp_stroke_real_temp_anchor_set (GimpStroke *stroke,
const GimpCoords *coord)
{
g_printerr ("gimp_stroke_temp_anchor_set: default implementation\n");
return NULL;
@ -490,15 +497,14 @@ gimp_stroke_temp_anchor_set (GimpStroke *stroke,
gboolean
gimp_stroke_temp_anchor_fix (GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), FALSE);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->temp_anchor_fix (stroke);
}
if (stroke_class->temp_anchor_fix)
return stroke_class->temp_anchor_fix (stroke);
else
static gboolean
gimp_stroke_real_temp_anchor_fix (GimpStroke *stroke)
{
g_printerr ("gimp_stroke_temp_anchor_fix: default implementation\n");
return FALSE;
@ -513,43 +519,33 @@ gimp_stroke_duplicate (const GimpStroke *stroke)
return (GIMP_STROKE_GET_CLASS (stroke))->duplicate (stroke);
}
GimpStroke *
gimp_stroke_real_duplicate (const GimpStroke *stroke)
{
GimpStroke *new_stroke;
GimpObject *new_gimpobject;
GList *anchorlist;
GimpAnchor *new_anchor;
GType stroke_type = G_OBJECT_TYPE (stroke);
GList *list;
new_stroke = g_object_new (stroke_type, NULL);
new_gimpobject = GIMP_OBJECT (new_stroke);
new_stroke = g_object_new (G_TYPE_FROM_INSTANCE (stroke),
"name", GIMP_OBJECT (stroke)->name,
NULL);
gimp_object_set_name (new_gimpobject, GIMP_OBJECT (stroke)->name);
new_stroke->anchors = g_list_copy (stroke->anchors);
anchorlist = g_list_copy (stroke->anchors);
new_stroke->anchors = anchorlist;
while (anchorlist)
for (list = new_stroke->anchors; list; list = g_list_next (list))
{
new_anchor = g_new0 (GimpAnchor, 1);
*new_anchor = *((GimpAnchor *) (anchorlist->data));
GimpAnchor *new_anchor = g_new0 (GimpAnchor, 1);
anchorlist->data = (gpointer) new_anchor;
anchorlist = g_list_next (anchorlist);
*new_anchor = *((GimpAnchor *) (list->data));
list->data = new_anchor;
}
if (stroke->temp_anchor)
{
new_stroke->temp_anchor = g_new0 (GimpAnchor, 1);
*(new_stroke->temp_anchor) = *(stroke->temp_anchor);
}
else
{
new_stroke->temp_anchor = NULL;
}
return new_stroke;
}
@ -558,137 +554,119 @@ gimp_stroke_real_duplicate (const GimpStroke *stroke)
GimpStroke *
gimp_stroke_make_bezier (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->make_bezier (stroke);
}
if (stroke_class->make_bezier)
return stroke_class->make_bezier (stroke);
else
static GimpStroke *
gimp_stroke_real_make_bezier (const GimpStroke *stroke)
{
g_printerr ("gimp_stroke_make_bezier: default implementation\n");
return NULL;
}
GList *
gimp_stroke_get_draw_anchors (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
if (stroke_class->get_draw_anchors)
return stroke_class->get_draw_anchors (stroke);
else
{
GList *cur_ptr, *ret_list = NULL;
cur_ptr = stroke->anchors;
while (cur_ptr)
{
if (((GimpAnchor *) cur_ptr->data)->type == GIMP_ANCHOR_ANCHOR)
ret_list = g_list_append (ret_list, cur_ptr->data);
cur_ptr = g_list_next (cur_ptr);
return GIMP_STROKE_GET_CLASS (stroke)->get_draw_anchors (stroke);
}
return ret_list;
static GList *
gimp_stroke_real_get_draw_anchors (const GimpStroke *stroke)
{
GList *list;
GList *ret_list = NULL;
for (list = stroke->anchors; list; list = g_list_next (list))
{
if (((GimpAnchor *) list->data)->type == GIMP_ANCHOR_ANCHOR)
ret_list = g_list_prepend (ret_list, list->data);
}
return g_list_reverse (ret_list);
}
GList *
gimp_stroke_get_draw_controls (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->get_draw_controls (stroke);
}
if (stroke_class->get_draw_controls)
return stroke_class->get_draw_controls (stroke);
else
static GList *
gimp_stroke_real_get_draw_controls (const GimpStroke *stroke)
{
GList *cur_ptr, *ret_list = NULL;
GList *list;
GList *ret_list = NULL;
cur_ptr = stroke->anchors;
while (cur_ptr)
for (list = stroke->anchors; list; list = g_list_next (list))
{
if (((GimpAnchor *) cur_ptr->data)->type == GIMP_ANCHOR_CONTROL)
GimpAnchor *anchor = list->data;
if (anchor->type == GIMP_ANCHOR_CONTROL)
{
if (cur_ptr->next &&
((GimpAnchor *) cur_ptr->next->data)->type == GIMP_ANCHOR_ANCHOR &&
((GimpAnchor *) cur_ptr->next->data)->selected)
ret_list = g_list_append (ret_list, cur_ptr->data);
else if (cur_ptr->prev &&
((GimpAnchor *) cur_ptr->prev->data)->type == GIMP_ANCHOR_ANCHOR &&
((GimpAnchor *) cur_ptr->prev->data)->selected)
ret_list = g_list_append (ret_list, cur_ptr->data);
GimpAnchor *next = list->next ? list->next->data : NULL;
GimpAnchor *prev = list->prev ? list->prev->data : NULL;
if (next && next->type == GIMP_ANCHOR_ANCHOR && next->selected)
{
ret_list = g_list_prepend (ret_list, anchor);
}
else if (prev && prev->type == GIMP_ANCHOR_ANCHOR && prev->selected)
{
ret_list = g_list_prepend (ret_list, anchor);
}
}
cur_ptr = g_list_next (cur_ptr);
}
return ret_list;
return g_list_reverse (ret_list);
}
return NULL;
}
GArray *
gimp_stroke_get_draw_lines (const GimpStroke *stroke)
{
GimpStrokeClass *stroke_class;
g_return_val_if_fail (GIMP_IS_STROKE (stroke), NULL);
stroke_class = GIMP_STROKE_GET_CLASS (stroke);
return GIMP_STROKE_GET_CLASS (stroke)->get_draw_lines (stroke);
}
if (stroke_class->get_draw_lines)
return stroke_class->get_draw_lines (stroke);
else
static GArray *
gimp_stroke_real_get_draw_lines (const GimpStroke *stroke)
{
GList *cur_ptr;
GList *list;
GArray *ret_lines = g_array_new (FALSE, FALSE, sizeof (GimpCoords));
cur_ptr = stroke->anchors;
while (cur_ptr)
for (list = stroke->anchors; list; list = g_list_next (list))
{
if (((GimpAnchor *) cur_ptr->data)->type == GIMP_ANCHOR_ANCHOR &&
((GimpAnchor *) cur_ptr->data)->selected)
{
if (cur_ptr->next)
{
ret_lines = g_array_append_val (ret_lines,
((GimpAnchor *) cur_ptr->data)->position);
GimpAnchor *anchor = list->data;
ret_lines = g_array_append_val (ret_lines,
((GimpAnchor *) cur_ptr->next->data)->position);
if (anchor->type == GIMP_ANCHOR_ANCHOR && anchor->selected)
{
if (list->next)
{
GimpAnchor *next = list->next->data;
ret_lines = g_array_append_val (ret_lines, anchor->position);
ret_lines = g_array_append_val (ret_lines, next->position);
}
if (cur_ptr->prev)
if (list->prev)
{
ret_lines = g_array_append_val (ret_lines,
((GimpAnchor *) cur_ptr->data)->position);
ret_lines = g_array_append_val (ret_lines,
((GimpAnchor *) cur_ptr->prev->data)->position);
GimpAnchor *prev = list->prev->data;
ret_lines = g_array_append_val (ret_lines, anchor->position);
ret_lines = g_array_append_val (ret_lines, prev->position);
}
}
cur_ptr = g_list_next (cur_ptr);
}
return ret_lines;
}
}

45
app/vectors/gimpstroke.h
View File

@ -41,8 +41,7 @@ struct _GimpStroke
GList *anchors;
GimpAnchor *temp_anchor;
/* Stuff missing? */
gboolean closed;
};
@ -51,39 +50,30 @@ struct _GimpStrokeClass
GimpObjectClass parent_class;
void (* changed) (GimpStroke *stroke);
void (* removed) (GimpStroke *stroke);
GimpAnchor * (* anchor_get) (const GimpStroke *stroke,
const GimpCoords *coord);
GimpAnchor * (* anchor_get_next) (const GimpStroke *stroke,
const GimpAnchor *prev);
void (* anchor_select) (GimpStroke *stroke,
GimpAnchor *anchor,
gboolean exclusive);
void (* anchor_move_relative) (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature);
GimpAnchorFeatureType feature);
void (* anchor_move_absolute) (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature);
GimpAnchorFeatureType feature);
void (* anchor_convert) (GimpStroke *stroke,
GimpAnchor *anchor,
GimpAnchorFeatureType feature);
void (* anchor_delete) (GimpStroke *stroke,
GimpAnchor *anchor);
gdouble (* get_length) (const GimpStroke *stroke);
gdouble (* get_distance) (const GimpStroke *stroke,
const GimpCoords *coord);
@ -91,28 +81,20 @@ struct _GimpStrokeClass
const gdouble precision,
gboolean *ret_closed);
GimpAnchor * (* temp_anchor_get) (const GimpStroke *stroke);
GimpAnchor * (* temp_anchor_set) (GimpStroke *stroke,
const GimpCoords *coord);
gboolean (* temp_anchor_fix) (GimpStroke *stroke);
GimpStroke * (* duplicate) (const GimpStroke *stroke);
GimpStroke * (* make_bezier) (const GimpStroke *stroke);
GList * (* get_draw_anchors) (const GimpStroke *stroke);
GList * (* get_draw_controls) (const GimpStroke *stroke);
GArray * (* get_draw_lines) (const GimpStroke *stroke);
};
/* stroke utility functions */
GType gimp_stroke_get_type (void) G_GNUC_CONST;
@ -125,7 +107,6 @@ GimpAnchor * gimp_stroke_anchor_get (const GimpStroke *stroke,
GimpAnchor * gimp_stroke_anchor_get_next (const GimpStroke *stroke,
const GimpAnchor *prev);
void gimp_stroke_anchor_select (GimpStroke *stroke,
GimpAnchor *anchor,
gboolean exclusive);
@ -136,13 +117,12 @@ void gimp_stroke_anchor_select (GimpStroke *stroke,
*/
void gimp_stroke_anchor_move_relative (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const GimpAnchorFeatureType feature);
const GimpCoords *delta,
GimpAnchorFeatureType feature);
void gimp_stroke_anchor_move_absolute (GimpStroke *stroke,
GimpAnchor *anchor,
const GimpCoords *coord,
const GimpAnchorFeatureType feature);
GimpAnchorFeatureType feature);
void gimp_stroke_anchor_convert (GimpStroke *stroke,
GimpAnchor *anchor,
@ -155,39 +135,30 @@ void gimp_stroke_anchor_delete (GimpStroke *stroke,
/* accessing the shape of the curve */
gdouble gimp_stroke_get_length (const GimpStroke *stroke);
gdouble gimp_stroke_get_distance (const GimpStroke *stroke,
const GimpCoords *coord);
/* returns the number of valid coordinates */
GArray * gimp_stroke_interpolate (const GimpStroke *stroke,
gdouble precision,
gboolean *ret_closed);
gboolean *closed);
/* Allow a singular temorary anchor (marking the "working point")? */
GimpAnchor * gimp_stroke_temp_anchor_get (const GimpStroke *stroke);
GimpAnchor * gimp_stroke_temp_anchor_set (GimpStroke *stroke,
const GimpCoords *coord);
gboolean gimp_stroke_temp_anchor_fix (GimpStroke *stroke);
GimpStroke * gimp_stroke_duplicate (const GimpStroke *stroke);
/* usually overloaded */
/* creates a bezier approximation. */
GimpStroke * gimp_stroke_make_bezier (const GimpStroke *stroke);
GList * gimp_stroke_get_draw_anchors (const GimpStroke *stroke);
GList * gimp_stroke_get_draw_controls (const GimpStroke *stroke);
GArray * gimp_stroke_get_draw_lines (const GimpStroke *stroke);
#endif /* __GIMP_STROKE_H__ */

26
app/vectors/gimpvectors-preview.c
View File

@ -27,6 +27,7 @@
#include "base/temp-buf.h"
#include "core/gimpimage.h"
#include "gimpstroke.h"
#include "gimpvectors.h"
#include "gimpvectors-preview.h"
@ -41,17 +42,11 @@ gimp_vectors_get_new_preview (GimpViewable *viewable,
{
GimpVectors *vectors;
GimpItem *item;
GArray *coords;
GimpCoords point;
GimpStroke *cur_stroke = NULL;
GimpStroke *cur_stroke;
gdouble xscale, yscale;
gint x, y;
guchar *data;
gboolean closed;
TempBuf *temp_buf;
guchar white[1] = { 255 };
gint i;
vectors = GIMP_VECTORS (viewable);
item = GIMP_ITEM (viewable);
@ -62,16 +57,25 @@ gimp_vectors_get_new_preview (GimpViewable *viewable,
temp_buf = temp_buf_new (width, height, 1, 0, 0, white);
data = temp_buf_data (temp_buf);
while ((cur_stroke = gimp_vectors_stroke_get_next (vectors, cur_stroke)))
for (cur_stroke = gimp_vectors_stroke_get_next (vectors, NULL);
cur_stroke;
cur_stroke = gimp_vectors_stroke_get_next (vectors, cur_stroke))
{
coords = gimp_stroke_interpolate (cur_stroke, 1.0, &closed);
GArray *coords;
gboolean closed;
gint i;
coords = gimp_stroke_interpolate (cur_stroke, 0.5, &closed);
for (i = 0; i < coords->len; i++)
{
GimpCoords point;
gint x, y;
point = g_array_index (coords, GimpCoords, i);
x = (gint) (point.x * xscale + 0.5);
y = (gint) (point.y * yscale + 0.5);
x = ROUND (point.x * xscale);
y = ROUND (point.y * yscale);
if (x >= 0 && y >= 0 && x < width && y < height)
data[y * width + x] = 0;

295
app/vectors/gimpvectors.c
View File

@ -21,7 +21,7 @@
#include "config.h"
#include "glib-object.h"
#include <glib-object.h>
#include "vectors-types.h"
@ -83,6 +83,29 @@ static void gimp_vectors_transform (GimpItem *item,
gpointer progress_data);
static void gimp_vectors_real_thaw (GimpVectors *vectors);
static void gimp_vectors_real_stroke_add (GimpVectors *vectors,
GimpStroke *stroke);
static GimpStroke * gimp_vectors_real_stroke_get (const GimpVectors *vectors,
const GimpCoords *coord);
static GimpStroke *gimp_vectors_real_stroke_get_next(const GimpVectors *vectors,
const GimpStroke *prev);
static gdouble gimp_vectors_real_stroke_get_length (const GimpVectors *vectors,
const GimpStroke *prev);
static GimpAnchor * gimp_vectors_real_anchor_get (const GimpVectors *vectors,
const GimpCoords *coord,
GimpStroke **ret_stroke);
static void gimp_vectors_real_anchor_delete (GimpVectors *vectors,
GimpAnchor *anchor);
static gdouble gimp_vectors_real_get_length (const GimpVectors *vectors,
const GimpAnchor *start);
static gdouble gimp_vectors_real_get_distance (const GimpVectors *vectors,
const GimpCoords *coord);
static gint gimp_vectors_real_interpolate (const GimpVectors *vectors,
const GimpStroke *stroke,
gdouble precision,
gint max_points,
GimpCoords *ret_coords);
static GimpVectors * gimp_vectors_real_make_bezier (const GimpVectors *vectors);
/* private variables */
@ -171,18 +194,19 @@ gimp_vectors_class_init (GimpVectorsClass *klass)
klass->freeze = NULL;
klass->thaw = gimp_vectors_real_thaw;
klass->stroke_add = NULL;
klass->stroke_get = NULL;
klass->stroke_get_next = NULL;
klass->stroke_get_length = NULL;
klass->stroke_add = gimp_vectors_real_stroke_add;
klass->stroke_get = gimp_vectors_real_stroke_get;
klass->stroke_get_next = gimp_vectors_real_stroke_get_next;
klass->stroke_get_length = gimp_vectors_real_stroke_get_length;
klass->anchor_get = NULL;
klass->anchor_get = gimp_vectors_real_anchor_get;
klass->anchor_delete = gimp_vectors_real_anchor_delete;
klass->get_length = NULL;
klass->get_distance = NULL;
klass->interpolate = NULL;
klass->get_length = gimp_vectors_real_get_length;
klass->get_distance = gimp_vectors_real_get_distance;
klass->interpolate = gimp_vectors_real_interpolate;
klass->make_bezier = NULL;
klass->make_bezier = gimp_vectors_real_make_bezier;
}
static void
@ -528,118 +552,66 @@ gimp_vectors_copy_strokes (const GimpVectors *src_vectors,
/* Calling the virtual functions */
GimpAnchor *
gimp_vectors_anchor_get (const GimpVectors *vectors,
const GimpCoords *coord,
GimpStroke **ret_stroke)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), NULL);
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
if (vectors_class->anchor_get)
return vectors_class->anchor_get (vectors, coord, ret_stroke);
else
{
gdouble dx, dy, mindist;
GList *stroke;
GimpAnchor *anchor = NULL, *minanchor = NULL;
mindist = -1;
for (stroke = vectors->strokes; stroke; stroke = g_list_next (stroke))
{
anchor = gimp_stroke_anchor_get (GIMP_STROKE (stroke->data), coord);
if (anchor)
{
dx = coord->x - anchor->position.x;
dy = coord->y - anchor->position.y;
if (mindist > dx * dx + dy * dy || mindist < 0)
{
mindist = dx * dx + dy * dy;
minanchor = anchor;
if (ret_stroke)
*ret_stroke = stroke->data;
}
}
}
return minanchor;
}
return NULL;
}
void
gimp_vectors_stroke_add (GimpVectors *vectors,
GimpStroke *stroke)
{
GimpVectorsClass *vectors_class;
g_return_if_fail (GIMP_IS_VECTORS (vectors));
g_return_if_fail (GIMP_IS_STROKE (stroke));
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
gimp_vectors_freeze (vectors);
if (vectors_class->stroke_add)
{
vectors_class->stroke_add (vectors, stroke);
GIMP_VECTORS_GET_CLASS (vectors)->stroke_add (vectors, stroke);
gimp_vectors_thaw (vectors);
}
else
static void
gimp_vectors_real_stroke_add (GimpVectors *vectors,
GimpStroke *stroke)
{
vectors->strokes = g_list_prepend (vectors->strokes, stroke);
g_object_ref (stroke);
}
gimp_vectors_thaw (vectors);
}
GimpStroke *
gimp_vectors_stroke_get (const GimpVectors *vectors,
const GimpCoords *coord)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), NULL);
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
return GIMP_VECTORS_GET_CLASS (vectors)->stroke_get (vectors, coord);
}
if (vectors_class->stroke_get)
return vectors_class->stroke_get (vectors, coord);
else
static GimpStroke *
gimp_vectors_real_stroke_get (const GimpVectors *vectors,
const GimpCoords *coord)
{
gdouble dx, dy, mindist;
GList *stroke;
gdouble mindist = G_MAXDOUBLE;
GimpStroke *minstroke = NULL;
GimpAnchor *anchor = NULL;
mindist = -1;
stroke = vectors->strokes;
while (stroke)
for (stroke = vectors->strokes; stroke; stroke = g_list_next (stroke))
{
anchor = gimp_stroke_anchor_get (stroke->data, coord);
GimpAnchor *anchor = gimp_stroke_anchor_get (stroke->data, coord);
if (anchor)
{
gdouble dx, dy;
dx = coord->x - anchor->position.x;
dy = coord->y - anchor->position.y;
if (mindist > dx * dx + dy * dy || mindist < 0)
if (mindist > dx * dx + dy * dy)
{
mindist = dx * dx + dy * dy;
minstroke = GIMP_STROKE (stroke->data);
}
}
stroke = g_list_next (stroke);
}
return minstroke;
}
return NULL;
return minstroke;
}
@ -647,15 +619,14 @@ GimpStroke *
gimp_vectors_stroke_get_next (const GimpVectors *vectors,
const GimpStroke *prev)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), NULL);
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
return GIMP_VECTORS_GET_CLASS (vectors)->stroke_get_next (vectors, prev);
}
if (vectors_class->stroke_get_next)
return vectors_class->stroke_get_next (vectors, prev);
else
static GimpStroke *
gimp_vectors_real_stroke_get_next (const GimpVectors *vectors,
const GimpStroke *prev)
{
if (! prev)
{
@ -664,32 +635,96 @@ gimp_vectors_stroke_get_next (const GimpVectors *vectors,
else
{
GList *stroke;
stroke = g_list_find (vectors->strokes, prev);
g_return_val_if_fail (stroke != NULL, NULL);
return stroke->next ? GIMP_STROKE (stroke->next->data) : NULL;
}
}
return NULL;
}
gdouble
gimp_vectors_stroke_get_length (const GimpVectors *vectors,
const GimpStroke *prev)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0.0);
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0);
return GIMP_VECTORS_GET_CLASS (vectors)->stroke_get_length (vectors, prev);
}
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
if (vectors_class->stroke_get_length)
return vectors_class->stroke_get_length (vectors, prev);
else
static gdouble
gimp_vectors_real_stroke_get_length (const GimpVectors *vectors,
const GimpStroke *prev)
{
g_printerr ("gimp_vectors_stroke_get_length: default implementation\n");
return 0;
return 0.0;
}
GimpAnchor *
gimp_vectors_anchor_get (const GimpVectors *vectors,
const GimpCoords *coord,
GimpStroke **ret_stroke)
{
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), NULL);
return GIMP_VECTORS_GET_CLASS (vectors)->anchor_get (vectors, coord,
ret_stroke);
}
static GimpAnchor *
gimp_vectors_real_anchor_get (const GimpVectors *vectors,
const GimpCoords *coord,
GimpStroke **ret_stroke)
{
gdouble dx, dy, mindist;
GList *stroke;
GimpAnchor *anchor = NULL;
GimpAnchor *minanchor = NULL;
mindist = -1;
for (stroke = vectors->strokes; stroke; stroke = g_list_next (stroke))
{
anchor = gimp_stroke_anchor_get (GIMP_STROKE (stroke->data), coord);
if (anchor)
{
dx = coord->x - anchor->position.x;
dy = coord->y - anchor->position.y;
if (mindist > dx * dx + dy * dy || mindist < 0)
{
mindist = dx * dx + dy * dy;
minanchor = anchor;
if (ret_stroke)
*ret_stroke = stroke->data;
}
}
}
return minanchor;
}
void
gimp_vectors_anchor_delete (GimpVectors *vectors,
GimpAnchor *anchor)
{
g_return_if_fail (GIMP_IS_VECTORS (vectors));
g_return_if_fail (anchor != NULL);
return GIMP_VECTORS_GET_CLASS (vectors)->anchor_delete (vectors, anchor);
}
static void
gimp_vectors_real_anchor_delete (GimpVectors *vectors,
GimpAnchor *anchor)
{
}
@ -697,15 +732,15 @@ gdouble
gimp_vectors_get_length (const GimpVectors *vectors,
const GimpAnchor *start)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0.0);
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0);
return GIMP_VECTORS_GET_CLASS (vectors)->get_length (vectors, start);
}
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
if (vectors_class->get_length)
return vectors_class->get_length (vectors, start);
else
static gdouble
gimp_vectors_real_get_length (const GimpVectors *vectors,
const GimpAnchor *start)
{
g_printerr ("gimp_vectors_get_length: default implementation\n");
return 0;
@ -716,15 +751,15 @@ gdouble
gimp_vectors_get_distance (const GimpVectors *vectors,
const GimpCoords *coord)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0.0);
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0);
return GIMP_VECTORS_GET_CLASS (vectors)->get_distance (vectors, coord);
}
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
if (vectors_class->get_distance)
return vectors_class->get_distance (vectors, coord);
else
static gdouble
gimp_vectors_real_get_distance (const GimpVectors *vectors,
const GimpCoords *coord)
{
g_printerr ("gimp_vectors_get_distance: default implementation\n");
return 0;
@ -734,19 +769,24 @@ gimp_vectors_get_distance (const GimpVectors *vectors,
gint
gimp_vectors_interpolate (const GimpVectors *vectors,
const GimpStroke *stroke,
const gdouble precision,
const gint max_points,
gdouble precision,
gint max_points,
GimpCoords *ret_coords)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), 0);
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
return GIMP_VECTORS_GET_CLASS (vectors)->interpolate (vectors, stroke,
precision, max_points,
ret_coords);
}
if (vectors_class->interpolate)
return vectors_class->interpolate (vectors, stroke, precision, max_points, ret_coords);
else
static gint
gimp_vectors_real_interpolate (const GimpVectors *vectors,
const GimpStroke *stroke,
gdouble precision,
gint max_points,
GimpCoords *ret_coords)
{
g_printerr ("gimp_vectors_interpolate: default implementation\n");
return 0;
@ -756,15 +796,14 @@ gimp_vectors_interpolate (const GimpVectors *vectors,
GimpVectors *
gimp_vectors_make_bezier (const GimpVectors *vectors)
{
GimpVectorsClass *vectors_class;
g_return_val_if_fail (GIMP_IS_VECTORS (vectors), NULL);
vectors_class = GIMP_VECTORS_GET_CLASS (vectors);
return GIMP_VECTORS_GET_CLASS (vectors)->make_bezier (vectors);
}
if (vectors_class->make_bezier)
return vectors_class->make_bezier (vectors);
else
static GimpVectors *
gimp_vectors_real_make_bezier (const GimpVectors *vectors)
{
g_printerr ("gimp_vectors_make_bezier: default implementation\n");
return NULL;

18
app/vectors/gimpvectors.h
View File

@ -54,7 +54,7 @@ struct _GimpVectorsClass
/* virtual functions */
void (* stroke_add) (GimpVectors *vectors,
const GimpStroke *stroke);
GimpStroke *stroke);
GimpStroke * (* stroke_get) (const GimpVectors *vectors,
const GimpCoords *coord);
GimpStroke * (* stroke_get_next) (const GimpVectors *vectors,
@ -72,8 +72,8 @@ struct _GimpVectorsClass
const GimpCoords *coord);
gint (* interpolate) (const GimpVectors *vectors,
const GimpStroke *stroke,
const gdouble precision,
const gint max_points,
gdouble precision,
gint max_points,
GimpCoords *ret_coords);
GimpVectors * (* make_bezier) (const GimpVectors *vectors);
};
@ -110,12 +110,11 @@ GimpAnchor * gimp_vectors_anchor_get_next (const GimpVectors *vectors,
void gimp_vectors_anchor_move_relative (GimpVectors *vectors,
GimpAnchor *anchor,
const GimpCoords *deltacoord,
const gint type);
gint type);
void gimp_vectors_anchor_move_absolute (GimpVectors *vectors,
GimpAnchor *anchor,
const GimpCoords *coord,
const gint type);
gint type);
void gimp_vectors_anchor_delete (GimpVectors *vectors,
GimpAnchor *anchor);
@ -124,14 +123,12 @@ void gimp_vectors_anchor_delete (GimpVectors *vectors,
void gimp_vectors_stroke_add (GimpVectors *vectors,
GimpStroke *stroke);
GimpStroke * gimp_vectors_stroke_get (const GimpVectors *vectors,
const GimpCoords *coord);
/* prev == NULL: "first" stroke */
GimpStroke * gimp_vectors_stroke_get_next (const GimpVectors *vectors,
const GimpStroke *prev);
gdouble gimp_vectors_stroke_get_length (const GimpVectors *vectors,
const GimpStroke *stroke);
@ -139,15 +136,14 @@ gdouble gimp_vectors_stroke_get_length (const GimpVectors *vectors,
gdouble gimp_vectors_get_length (const GimpVectors *vectors,
const GimpAnchor *start);
gdouble gimp_vectors_get_distance (const GimpVectors *vectors,
const GimpCoords *coord);
/* returns the number of valid coordinates */
gint gimp_vectors_interpolate (const GimpVectors *vectors,
const GimpStroke *stroke,
const gdouble precision,
const gint max_points,
gdouble precision,
gint max_points,
GimpCoords *ret_coords);