1 /* ADG - Automatic Drawing Generation
2 * Copyright (C) 2007,2008,2009 Nicola Fontana <ntd at entidi.it>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
23 * @short_description: Linear dimensions
25 * The #AdgLDim entity represents a linear dimension.
31 * All fields are private and should not be used directly.
32 * Use its public methods instead.
37 #include "adg-ldim-private.h"
38 #include "adg-dim-private.h"
39 #include "adg-dim-style.h"
42 #define PARENT_OBJECT_CLASS ((GObjectClass *) adg_ldim_parent_class)
43 #define PARENT_ENTITY_CLASS ((AdgEntityClass *) adg_ldim_parent_class)
54 static void dispose (GObject
*object
);
55 static void get_property (GObject
*object
,
59 static void set_property (GObject
*object
,
63 static void local_changed (AdgEntity
*entity
);
64 static void invalidate (AdgEntity
*entity
);
65 static void arrange (AdgEntity
*entity
);
66 static void render (AdgEntity
*entity
,
68 static gchar
* default_value (AdgDim
*dim
);
69 static void update_geometry (AdgLDim
*ldim
);
70 static void update_shift (AdgLDim
*ldim
);
71 static void update_entities (AdgLDim
*ldim
);
72 static gboolean
choose_outside (AdgLDim
*ldim
);
73 static void unset_trail (AdgLDim
*ldim
);
74 static void dispose_markers (AdgLDim
*ldim
);
75 static CpmlPath
* trail_callback (AdgTrail
*trail
,
79 G_DEFINE_TYPE(AdgLDim
, adg_ldim
, ADG_TYPE_DIM
);
83 adg_ldim_class_init(AdgLDimClass
*klass
)
85 GObjectClass
*gobject_class
;
86 AdgEntityClass
*entity_class
;
87 AdgDimClass
*dim_class
;
90 gobject_class
= (GObjectClass
*) klass
;
91 entity_class
= (AdgEntityClass
*) klass
;
92 dim_class
= (AdgDimClass
*) klass
;
94 g_type_class_add_private(klass
, sizeof(AdgLDimPrivate
));
96 gobject_class
->dispose
= dispose
;
97 gobject_class
->get_property
= get_property
;
98 gobject_class
->set_property
= set_property
;
100 entity_class
->local_changed
= local_changed
;
101 entity_class
->invalidate
= invalidate
;
102 entity_class
->arrange
= arrange
;
103 entity_class
->render
= render
;
105 dim_class
->default_value
= default_value
;
107 param
= g_param_spec_double("direction",
109 P_("The inclination angle of the extension lines"),
110 -G_MAXDOUBLE
, G_MAXDOUBLE
, ADG_DIR_RIGHT
,
111 G_PARAM_READWRITE
| G_PARAM_CONSTRUCT
);
112 g_object_class_install_property(gobject_class
, PROP_DIRECTION
, param
);
114 param
= g_param_spec_boolean("has-extension1",
115 P_("Has First Extension Line flag"),
116 P_("Show (TRUE) or hide (FALSE) the first extension line"),
117 TRUE
, G_PARAM_READWRITE
);
118 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION1
, param
);
120 param
= g_param_spec_boolean("has-extension2",
121 P_("Has Second Extension Line flag"),
122 P_("Show (TRUE) or hide (FALSE) the second extension line"),
123 TRUE
, G_PARAM_READWRITE
);
124 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION2
, param
);
128 adg_ldim_init(AdgLDim
*ldim
)
130 AdgLDimPrivate
*data
;
131 cairo_path_data_t move_to
, line_to
;
133 data
= G_TYPE_INSTANCE_GET_PRIVATE(ldim
, ADG_TYPE_LDIM
, AdgLDimPrivate
);
134 move_to
.header
.type
= CAIRO_PATH_MOVE_TO
;
135 move_to
.header
.length
= 2;
136 line_to
.header
.type
= CAIRO_PATH_LINE_TO
;
137 line_to
.header
.length
= 2;
140 data
->has_extension1
= TRUE
;
141 data
->has_extension2
= TRUE
;
143 data
->cpml
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
144 data
->cpml
.path
.data
= data
->cpml
.data
;
145 data
->cpml
.path
.num_data
= G_N_ELEMENTS(data
->cpml
.data
);
146 data
->cpml
.path
.data
[0] = move_to
;
147 data
->cpml
.path
.data
[2] = line_to
;
148 data
->cpml
.path
.data
[4] = move_to
;
149 data
->cpml
.path
.data
[6] = line_to
;
150 data
->cpml
.path
.data
[8] = move_to
;
151 data
->cpml
.path
.data
[10] = line_to
;
152 data
->cpml
.path
.data
[12] = move_to
;
153 data
->cpml
.path
.data
[14] = line_to
;
154 data
->cpml
.path
.data
[16] = move_to
;
155 data
->cpml
.path
.data
[18] = line_to
;
158 data
->marker1
= NULL
;
159 data
->marker2
= NULL
;
161 data
->geometry
.is_arranged
= FALSE
;
162 data
->shift
.is_arranged
= FALSE
;
168 dispose(GObject
*object
)
170 dispose_markers((AdgLDim
*) object
);
172 if (PARENT_OBJECT_CLASS
->dispose
!= NULL
)
173 PARENT_OBJECT_CLASS
->dispose(object
);
177 get_property(GObject
*object
,
178 guint prop_id
, GValue
*value
, GParamSpec
*pspec
)
180 AdgLDimPrivate
*data
= ((AdgLDim
*) object
)->data
;
184 g_value_set_double(value
, data
->direction
);
186 case PROP_HAS_EXTENSION1
:
187 g_value_set_boolean(value
, data
->has_extension1
);
189 case PROP_HAS_EXTENSION2
:
190 g_value_set_boolean(value
, data
->has_extension2
);
193 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
199 set_property(GObject
*object
,
200 guint prop_id
, const GValue
*value
, GParamSpec
*pspec
)
202 AdgLDimPrivate
*data
= ((AdgLDim
*) object
)->data
;
206 data
->direction
= g_value_get_double(value
);
208 case PROP_HAS_EXTENSION1
:
209 data
->has_extension1
= g_value_get_boolean(value
);
211 case PROP_HAS_EXTENSION2
:
212 data
->has_extension2
= g_value_get_boolean(value
);
215 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
224 * Creates a new - undefined - linear dimension. You must, at least,
225 * define the reference points with adg_dim_set_ref(), the dimension
226 * direction with adg_ldim_set_direction() and the position reference
227 * using adg_dim_set_pos().
229 * Returns: the newly created linear dimension entity
234 return g_object_new(ADG_TYPE_LDIM
, NULL
);
239 * @ref1: the first reference point
240 * @ref2: the second reference point
241 * @direction: angle where to extend the dimension
242 * @pos: the position reference
244 * Creates a new linear dimension, specifing all the needed properties in
247 * Returns: the newly created linear dimension entity
250 adg_ldim_new_full(const AdgPair
*ref1
, const AdgPair
*ref2
,
251 gdouble direction
, const AdgPair
*pos
)
253 return g_object_new(ADG_TYPE_LDIM
, "ref1", ref1
, "ref2", ref2
,
254 "direction", direction
, "pos", pos
, NULL
);
258 * adg_ldim_new_full_explicit:
259 * @ref1_x: the x coordinate of the first reference point
260 * @ref1_y: the y coordinate of the first reference point
261 * @ref2_x: the x coordinate of the second reference point
262 * @ref2_y: the y coordinate of the second reference point
263 * @direction: angle where to extend the dimension
264 * @pos_x: the x coordinate of the position reference
265 * @pos_y: the y coordinate of the position reference
267 * Wrappes adg_ldim_new_full() with explicit values.
269 * Returns: the newly created linear dimension entity
272 adg_ldim_new_full_explicit(gdouble ref1_x
, gdouble ref1_y
,
273 gdouble ref2_x
, gdouble ref2_y
,
274 gdouble direction
, gdouble pos_x
, gdouble pos_y
)
287 return adg_ldim_new_full(&ref1
, &ref2
, direction
, &pos
);
291 * adg_ldim_get_direction:
292 * @ldim: an #AdgLDim entity
294 * Gets the direction where @ldim will extend.
296 * Returns: the direction angle in radians
299 adg_ldim_get_direction(AdgLDim
*ldim
)
301 AdgLDimPrivate
*data
;
303 g_return_val_if_fail(ADG_IS_LDIM(ldim
), 0);
307 return data
->direction
;
311 * adg_ldim_set_direction:
312 * @ldim: an #AdgLDim entity
313 * @direction: an angle value, in radians
315 * Sets the direction angle where to extend @ldim.
318 adg_ldim_set_direction(AdgLDim
*ldim
, gdouble direction
)
320 AdgLDimPrivate
*data
;
322 g_return_if_fail(ADG_IS_LDIM(ldim
));
325 data
->direction
= direction
;
327 g_object_notify((GObject
*) ldim
, "direction");
331 * adg_ldim_has_extension1:
332 * @ldim: an #AdgLDim entity
334 * Checks if @ldim should render also the first extension line.
336 * Returns: %TRUE on first extension line presents, %FALSE otherwise
339 adg_ldim_has_extension1(AdgLDim
*ldim
)
341 AdgLDimPrivate
*data
;
343 g_return_val_if_fail(ADG_IS_LDIM(ldim
), FALSE
);
347 return data
->has_extension1
;
351 * adg_ldim_switch_extension1:
352 * @ldim: an #AdgLDim entity
353 * @state: the new state
355 * Shows (if @state is %TRUE) or hide (if @state is %FALSE) the first
356 * extension line of @ldim.
359 adg_ldim_switch_extension1(AdgLDim
*ldim
, gboolean state
)
361 AdgLDimPrivate
*data
;
363 g_return_if_fail(ADG_IS_LDIM(ldim
));
367 data
->has_extension1
= state
;
368 g_object_notify((GObject
*) ldim
, "has-extension1");
372 * adg_ldim_has_extension2:
373 * @ldim: an #AdgLDim entity
375 * Checks if @ldim should render also the second extension line.
377 * Returns: %TRUE on first extension line presents, %FALSE otherwise
380 adg_ldim_has_extension2(AdgLDim
*ldim
)
382 AdgLDimPrivate
*data
;
384 g_return_val_if_fail(ADG_IS_LDIM(ldim
), FALSE
);
388 return data
->has_extension2
;
392 * adg_ldim_switch_extension2:
393 * @ldim: an #AdgLDim entity
394 * @state: the new state
396 * Shows (if @state is %TRUE) or hide (if @state is %FALSE) the second
397 * extension line of @ldim.
400 adg_ldim_switch_extension2(AdgLDim
*ldim
, gboolean state
)
402 AdgLDimPrivate
*data
;
404 g_return_if_fail(ADG_IS_LDIM(ldim
));
408 data
->has_extension2
= state
;
409 g_object_notify((GObject
*) ldim
, "has-extension2");
414 local_changed(AdgEntity
*entity
)
416 unset_trail((AdgLDim
*) entity
);
418 PARENT_ENTITY_CLASS
->local_changed(entity
);
422 invalidate(AdgEntity
*entity
)
425 AdgLDimPrivate
*data
;
427 ldim
= (AdgLDim
*) entity
;
430 dispose_markers(ldim
);
431 data
->geometry
.is_arranged
= FALSE
;
432 data
->shift
.is_arranged
= FALSE
;
435 if (PARENT_ENTITY_CLASS
->invalidate
!= NULL
)
436 PARENT_ENTITY_CLASS
->invalidate(entity
);
440 arrange(AdgEntity
*entity
)
444 AdgLDimPrivate
*data
;
446 AdgDimStyle
*dim_style
;
448 const AdgMatrix
*local
;
449 AdgPair ref1
, ref2
, base1
, base2
;
453 PARENT_ENTITY_CLASS
->arrange(entity
);
455 ldim
= (AdgLDim
*) entity
;
456 dim
= (AdgDim
*) ldim
;
458 quote
= adg_dim_get_quote(dim
);
460 update_geometry(ldim
);
462 update_entities(ldim
);
464 if (data
->cpml
.path
.status
== CAIRO_STATUS_SUCCESS
) {
465 AdgEntity
*quote_entity
= (AdgEntity
*) quote
;
466 adg_entity_set_global_map(quote_entity
, &data
->quote
.global_map
);
467 adg_entity_set_local_map(quote_entity
, &data
->quote
.local_map
);
471 dim_style
= GET_DIM_STYLE(dim
);
473 switch (adg_dim_get_outside(dim
)) {
474 case ADG_THREE_STATE_OFF
:
477 case ADG_THREE_STATE_ON
:
480 case ADG_THREE_STATE_UNKNOWN
:
482 outside
= choose_outside(ldim
);
486 local
= adg_entity_local_matrix(entity
);
487 cpml_pair_copy(&ref1
, adg_dim_get_ref1(dim
));
488 cpml_pair_copy(&ref2
, adg_dim_get_ref2(dim
));
489 cpml_pair_copy(&base1
, &data
->geometry
.base1
);
490 cpml_pair_copy(&base2
, &data
->geometry
.base2
);
492 cpml_pair_transform(&ref1
, local
);
493 cpml_pair_transform(&ref2
, local
);
494 cpml_pair_transform(&base1
, local
);
495 cpml_pair_transform(&base2
, local
);
497 cpml_pair_add(cpml_pair_copy(&pair
, &ref1
), &data
->shift
.from
);
498 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[13]);
500 cpml_pair_copy(&pair
, &base1
);
501 cpml_pair_add(&pair
, &data
->shift
.base
);
502 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[1]);
504 cpml_pair_add(&pair
, &data
->shift
.to
);
505 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[15]);
507 cpml_pair_add(cpml_pair_copy(&pair
, &ref2
), &data
->shift
.from
);
508 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[17]);
510 cpml_pair_copy(&pair
, &base2
);
511 cpml_pair_add(&pair
, &data
->shift
.base
);
512 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[3]);
514 cpml_pair_add(&pair
, &data
->shift
.to
);
515 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[19]);
517 /* Calculate the outside segments */
522 beyond
= adg_dim_style_get_beyond(dim_style
);
523 cpml_pair_from_cairo(&pair
, &data
->cpml
.data
[1]);
525 cpml_pair_from_cairo(&vector
, &data
->cpml
.data
[3]);
526 cpml_pair_sub(&vector
, &pair
);
527 cpml_vector_set_length(&vector
, beyond
);
529 cpml_pair_from_cairo(&pair
, &data
->cpml
.data
[1]);
530 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[5]);
532 cpml_pair_sub(&pair
, &vector
);
533 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[7]);
535 cpml_pair_from_cairo(&pair
, &data
->cpml
.data
[3]);
536 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[11]);
538 cpml_pair_add(&pair
, &vector
);
539 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[9]);
541 data
->cpml
.data
[2].header
.length
= 2;
542 data
->cpml
.data
[10].header
.length
= 2;
545 data
->cpml
.data
[2].header
.length
= 10;
549 /* Play with header lengths to show or hide the extension lines */
550 if (data
->has_extension1
) {
551 data
->cpml
.data
[14].header
.length
= data
->has_extension2
? 2 : 6;
553 data
->cpml
.data
[n
].header
.length
+= 4;
554 if (!data
->has_extension2
)
555 data
->cpml
.data
[n
].header
.length
+= 4;
558 data
->cpml
.path
.status
= CAIRO_STATUS_SUCCESS
;
561 /* Update global and local map of the quote container */
562 AdgEntity
*quote_entity
;
566 quote_entity
= (AdgEntity
*) quote
;
567 angle
= adg_dim_quote_angle(dim
, data
->direction
+ G_PI_2
);
568 adg_matrix_copy(&matrix
, local
);
569 cairo_matrix_invert(&matrix
);
571 pair
.x
= (data
->cpml
.data
[1].point
.x
+ data
->cpml
.data
[3].point
.x
) / 2;
572 pair
.y
= (data
->cpml
.data
[1].point
.y
+ data
->cpml
.data
[3].point
.y
) / 2;
573 cairo_matrix_transform_point(&matrix
, &pair
.x
, &pair
.y
);
574 cairo_matrix_init_translate(&matrix
, pair
.x
, pair
.y
);
575 adg_entity_set_local_map(quote_entity
, &matrix
);
577 cairo_matrix_init_rotate(&matrix
, angle
);
578 adg_entity_transform_global_map(quote_entity
, &matrix
, ADG_TRANSFORM_BEFORE
);
580 adg_entity_get_global_map(quote_entity
, &data
->quote
.global_map
);
581 adg_entity_get_local_map(quote_entity
, &data
->quote
.local_map
);
584 if (data
->marker1
!= NULL
) {
585 adg_marker_set_segment(data
->marker1
, data
->trail
, outside
? 2 : 1);
586 adg_entity_local_changed((AdgEntity
*) data
->marker1
);
589 if (data
->marker2
!= NULL
) {
590 adg_marker_set_segment(data
->marker2
, data
->trail
, outside
? 3 : 1);
591 adg_entity_local_changed((AdgEntity
*) data
->marker2
);
594 /* TODO: compute the extents */
598 render(AdgEntity
*entity
, cairo_t
*cr
)
602 AdgLDimPrivate
*data
;
603 AdgDimStyle
*dim_style
;
605 const cairo_path_t
*cairo_path
;
607 ldim
= (AdgLDim
*) entity
;
608 dim
= (AdgDim
*) entity
;
610 dim_style
= GET_DIM_STYLE(dim
);
612 adg_style_apply((AdgStyle
*) dim_style
, entity
, cr
);
614 if (data
->marker1
!= NULL
)
615 adg_entity_render((AdgEntity
*) data
->marker1
, cr
);
617 if (data
->marker2
!= NULL
)
618 adg_entity_render((AdgEntity
*) data
->marker2
, cr
);
620 adg_entity_render((AdgEntity
*) adg_dim_get_quote(dim
), cr
);
622 dress
= adg_dim_style_get_line_dress(dim_style
);
623 adg_entity_apply_dress(entity
, dress
, cr
);
625 cairo_path
= adg_trail_get_cairo_path(data
->trail
);
626 cairo_append_path(cr
, cairo_path
);
631 default_value(AdgDim
*dim
)
634 AdgLDimPrivate
*data
;
635 AdgDimStyle
*dim_style
;
638 ldim
= (AdgLDim
*) dim
;
640 dim_style
= GET_DIM_STYLE(dim
);
641 format
= adg_dim_style_get_number_format(dim_style
);
643 update_geometry(ldim
);
645 return g_strdup_printf(format
, data
->geometry
.distance
);
649 update_geometry(AdgLDim
*ldim
)
651 AdgLDimPrivate
*data
;
653 const AdgPair
*ref1
, *ref2
;
655 CpmlVector baseline
, extension
;
660 if (data
->geometry
.is_arranged
)
663 dim
= (AdgDim
*) ldim
;
664 ref1
= adg_dim_get_ref1(dim
);
665 ref2
= adg_dim_get_ref2(dim
);
666 pos
= adg_dim_get_pos(dim
);
667 cpml_vector_from_angle(&extension
, data
->direction
);
668 cpml_pair_copy(&baseline
, &extension
);
669 cpml_vector_normal(&baseline
);
671 d
= extension
.y
* baseline
.x
-
672 extension
.x
* baseline
.y
;
673 g_return_if_fail(d
!= 0);
675 k
= ((pos
->y
- ref1
->y
) * baseline
.x
-
676 (pos
->x
- ref1
->x
) * baseline
.y
) / d
;
677 data
->geometry
.base1
.x
= ref1
->x
+ k
* extension
.x
;
678 data
->geometry
.base1
.y
= ref1
->y
+ k
* extension
.y
;
680 k
= ((pos
->y
- ref2
->y
) * baseline
.x
-
681 (pos
->x
- ref2
->x
) * baseline
.y
) / d
;
682 data
->geometry
.base2
.x
= ref2
->x
+ k
* extension
.x
;
683 data
->geometry
.base2
.y
= ref2
->y
+ k
* extension
.y
;
685 data
->geometry
.distance
= cpml_pair_distance(&data
->geometry
.base1
,
686 &data
->geometry
.base2
);
688 data
->geometry
.is_arranged
= TRUE
;
692 update_shift(AdgLDim
*ldim
)
694 AdgLDimPrivate
*data
;
695 AdgDimStyle
*dim_style
;
696 gdouble from_offset
, to_offset
;
697 gdouble baseline_spacing
, level
;
702 if (data
->shift
.is_arranged
)
705 dim_style
= GET_DIM_STYLE(ldim
);
706 from_offset
= adg_dim_style_get_from_offset(dim_style
);
707 to_offset
= adg_dim_style_get_to_offset(dim_style
);
708 baseline_spacing
= adg_dim_style_get_baseline_spacing(dim_style
);
709 level
= adg_dim_get_level((AdgDim
*) ldim
);
711 cpml_vector_from_angle(&vector
, data
->direction
);
713 cpml_vector_set_length(&vector
, from_offset
);
714 cpml_pair_copy(&data
->shift
.from
, &vector
);
716 cpml_vector_set_length(&vector
, to_offset
);
717 cpml_pair_copy(&data
->shift
.to
, &vector
);
719 cpml_vector_set_length(&vector
, level
* baseline_spacing
);
720 cpml_pair_copy(&data
->shift
.base
, &vector
);
722 data
->shift
.is_arranged
= TRUE
;
726 update_entities(AdgLDim
*ldim
)
728 AdgLDimPrivate
*data
;
729 AdgDimStyle
*dim_style
;
732 dim_style
= GET_DIM_STYLE(ldim
);
734 if (data
->trail
== NULL
)
735 data
->trail
= adg_trail_new(trail_callback
, ldim
);
737 if (data
->marker1
== NULL
)
738 data
->marker1
= adg_dim_style_marker1_new(dim_style
);
740 if (data
->marker2
== NULL
)
741 data
->marker2
= adg_dim_style_marker2_new(dim_style
);
745 choose_outside(AdgLDim
*ldim
)
747 AdgLDimPrivate
*data
;
749 const AdgMatrix
*local
;
751 gdouble marker1
, marker2
;
752 gdouble needed
, available
;
755 quote
= adg_dim_get_quote((AdgDim
*) ldim
);
756 local
= adg_entity_local_matrix((AdgEntity
*) ldim
);
757 adg_entity_get_extents((AdgEntity
*) quote
, &extents
);
758 marker1
= data
->marker1
== NULL
? 0 : adg_marker_get_size(data
->marker1
);
759 marker2
= data
->marker2
== NULL
? 0 : adg_marker_get_size(data
->marker2
);
761 needed
= extents
.size
.x
+ marker1
+ marker2
;
762 available
= data
->geometry
.distance
* local
->xx
;
764 return needed
> available
;
768 unset_trail(AdgLDim
*ldim
)
770 AdgLDimPrivate
*data
= ldim
->data
;
772 if (data
->trail
!= NULL
)
773 adg_model_clear((AdgModel
*) data
->trail
);
775 data
->cpml
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
779 dispose_markers(AdgLDim
*ldim
)
781 AdgLDimPrivate
*data
= ldim
->data
;
783 if (data
->trail
!= NULL
) {
784 g_object_unref(data
->trail
);
788 if (data
->marker1
!= NULL
) {
789 g_object_unref(data
->marker1
);
790 data
->marker1
= NULL
;
793 if (data
->marker2
!= NULL
) {
794 g_object_unref(data
->marker2
);
795 data
->marker2
= NULL
;
800 trail_callback(AdgTrail
*trail
, gpointer user_data
)
803 AdgLDimPrivate
*data
;
805 ldim
= (AdgLDim
*) user_data
;
808 return &data
->cpml
.path
;