1 /* ADG - Automatic Drawing Generation
2 * Copyright (C) 2007,2008,2009,2010,2011,2012,2013 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: Angular dimensions
25 * The #AdgADim entity defines an angular dimension.
33 * All fields are privates and should not be used directly.
34 * Use its public methods instead.
40 #include "adg-internal.h"
41 #include "adg-container.h"
42 #include "adg-alignment.h"
43 #include "adg-model.h"
44 #include "adg-point.h"
45 #include "adg-trail.h"
46 #include "adg-marker.h"
47 #include "adg-style.h"
48 #include "adg-dim-style.h"
49 #include "adg-textual.h"
50 #include "adg-toy-text.h"
52 #include "adg-dim-private.h"
55 #include "adg-adim-private.h"
58 #define _ADG_OLD_OBJECT_CLASS ((GObjectClass *) adg_adim_parent_class)
59 #define _ADG_OLD_ENTITY_CLASS ((AdgEntityClass *) adg_adim_parent_class)
62 G_DEFINE_TYPE(AdgADim
, adg_adim
, ADG_TYPE_DIM
)
74 static void _adg_dispose (GObject
*object
);
75 static void _adg_get_property (GObject
*object
,
79 static void _adg_set_property (GObject
*object
,
83 static void _adg_global_changed (AdgEntity
*entity
);
84 static void _adg_local_changed (AdgEntity
*entity
);
85 static void _adg_invalidate (AdgEntity
*entity
);
86 static void _adg_arrange (AdgEntity
*entity
);
87 static void _adg_render (AdgEntity
*entity
,
89 static gchar
* _adg_default_value (AdgDim
*dim
);
90 static gboolean
_adg_update_geometry (AdgADim
*adim
);
91 static void _adg_update_entities (AdgADim
*adim
);
92 static void _adg_unset_trail (AdgADim
*adim
);
93 static void _adg_dispose_trail (AdgADim
*adim
);
94 static void _adg_dispose_markers (AdgADim
*adim
);
95 static gboolean
_adg_get_info (AdgADim
*adim
,
99 static cairo_path_t
* _adg_trail_callback (AdgTrail
*trail
,
104 adg_adim_class_init(AdgADimClass
*klass
)
106 GObjectClass
*gobject_class
;
107 AdgEntityClass
*entity_class
;
108 AdgDimClass
*dim_class
;
109 GParamSpec
*param
, *old_param
;
111 gobject_class
= (GObjectClass
*) klass
;
112 entity_class
= (AdgEntityClass
*) klass
;
113 dim_class
= (AdgDimClass
*) klass
;
115 g_type_class_add_private(klass
, sizeof(AdgADimPrivate
));
117 gobject_class
->dispose
= _adg_dispose
;
118 gobject_class
->get_property
= _adg_get_property
;
119 gobject_class
->set_property
= _adg_set_property
;
121 entity_class
->global_changed
= _adg_global_changed
;
122 entity_class
->local_changed
= _adg_local_changed
;
123 entity_class
->invalidate
= _adg_invalidate
;
124 entity_class
->arrange
= _adg_arrange
;
125 entity_class
->render
= _adg_render
;
127 dim_class
->default_value
= _adg_default_value
;
129 /* Override #AdgDim:value to append a degree symbol
130 * to the default set value template string */
131 old_param
= g_object_class_find_property(gobject_class
, "value");
132 param
= g_param_spec_string(old_param
->name
,
133 g_param_spec_get_nick(old_param
),
134 g_param_spec_get_blurb(old_param
),
135 "<>" ADG_UTF8_DEGREE
,
137 g_object_class_install_property(gobject_class
, PROP_VALUE
, param
);
139 param
= g_param_spec_boxed("org1",
141 P_("Where the first line comes from: this point is used toghether with \"ref1\" to align the first extension line"),
144 g_object_class_install_property(gobject_class
, PROP_ORG1
, param
);
146 param
= g_param_spec_boxed("org2",
148 P_("Where the second line comes from: this point is used toghether with \"ref2\" to align the second extension line"),
151 g_object_class_install_property(gobject_class
, PROP_ORG2
, param
);
153 param
= g_param_spec_boolean("has-extension1",
154 P_("Has First Extension Line flag"),
155 P_("Show (TRUE) or hide (FALSE) the first extension line"),
156 TRUE
, G_PARAM_READWRITE
);
157 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION1
, param
);
159 param
= g_param_spec_boolean("has-extension2",
160 P_("Has Second Extension Line flag"),
161 P_("Show (TRUE) or hide (FALSE) the second extension line"),
162 TRUE
, G_PARAM_READWRITE
);
163 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION2
, param
);
167 adg_adim_init(AdgADim
*adim
)
169 AdgADimPrivate
*data
;
170 cairo_path_data_t move_to
, line_to
, arc_to
;
172 data
= G_TYPE_INSTANCE_GET_PRIVATE(adim
, ADG_TYPE_ADIM
, AdgADimPrivate
);
173 move_to
.header
.type
= CPML_MOVE
;
174 move_to
.header
.length
= 2;
175 line_to
.header
.type
= CPML_LINE
;
176 line_to
.header
.length
= 2;
177 arc_to
.header
.type
= CPML_ARC
;
178 arc_to
.header
.length
= 3;
182 data
->has_extension1
= TRUE
;
183 data
->has_extension2
= TRUE
;
185 data
->cairo
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
186 data
->cairo
.path
.data
= data
->cairo
.data
;
187 data
->cairo
.path
.num_data
= G_N_ELEMENTS(data
->cairo
.data
);
188 data
->cairo
.path
.data
[0] = move_to
;
189 data
->cairo
.path
.data
[2] = arc_to
;
190 data
->cairo
.path
.data
[5] = move_to
;
191 data
->cairo
.path
.data
[7] = line_to
;
192 data
->cairo
.path
.data
[9] = move_to
;
193 data
->cairo
.path
.data
[11] = line_to
;
196 data
->marker1
= NULL
;
197 data
->marker2
= NULL
;
199 data
->geometry_arranged
= FALSE
;
205 _adg_dispose(GObject
*object
)
209 AdgADimPrivate
*data
;
211 entity
= (AdgEntity
*) object
;
212 adim
= (AdgADim
*) entity
;
215 _adg_dispose_trail(adim
);
216 _adg_dispose_markers(adim
);
218 if (data
->org1
!= NULL
)
219 data
->org1
= adg_entity_point(entity
, data
->org1
, NULL
);
221 if (data
->org2
!= NULL
)
222 data
->org2
= adg_entity_point(entity
, data
->org2
, NULL
);
224 if (_ADG_OLD_OBJECT_CLASS
->dispose
)
225 _ADG_OLD_OBJECT_CLASS
->dispose(object
);
229 _adg_get_property(GObject
*object
, guint prop_id
,
230 GValue
*value
, GParamSpec
*pspec
)
232 AdgADimPrivate
*data
= ((AdgADim
*) object
)->data
;
236 g_value_set_string(value
, adg_dim_get_value((AdgDim
*) object
));
239 g_value_set_boxed(value
, data
->org1
);
242 g_value_set_boxed(value
, data
->org2
);
244 case PROP_HAS_EXTENSION1
:
245 g_value_set_boolean(value
, data
->has_extension1
);
247 case PROP_HAS_EXTENSION2
:
248 g_value_set_boolean(value
, data
->has_extension2
);
251 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
257 _adg_set_property(GObject
*object
, guint prop_id
,
258 const GValue
*value
, GParamSpec
*pspec
)
261 AdgADimPrivate
*data
;
263 entity
= (AdgEntity
*) object
;
264 data
= ((AdgADim
*) object
)->data
;
268 adg_dim_set_value((AdgDim
*) object
, g_value_get_string(value
));
271 data
->org1
= adg_entity_point(entity
, data
->org1
,
272 g_value_get_boxed(value
));
275 data
->org2
= adg_entity_point(entity
, data
->org2
,
276 g_value_get_boxed(value
));
278 case PROP_HAS_EXTENSION1
:
279 data
->has_extension1
= g_value_get_boolean(value
);
281 case PROP_HAS_EXTENSION2
:
282 data
->has_extension2
= g_value_get_boolean(value
);
285 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
294 * Creates a new - undefined - angular dimension. You must, at least,
295 * define the first line by setting #AdgADim:org1 (start point) and
296 * #AdgDim:ref1 (end point), the second line by setting #AdgADim:org2
297 * (start point) and #AdgDim:ref2 (end point) and the position of
298 * the quote in #AdgDim:pos.
300 * Returns: the newly created angular dimension entity
307 return g_object_new(ADG_TYPE_ADIM
, NULL
);
312 * @ref1: (allow-none): first reference point
313 * @ref2: (allow-none): second reference point
314 * @org1: (allow-none): first origin point
315 * @org2: (allow-none): second origin point
316 * @pos: (allow-none): the position point
318 * Creates a new angular dimension, specifing all the needed
319 * properties in one shot using #CpmlPair.
321 * Returns: the newly created angular dimension entity
326 adg_adim_new_full(const CpmlPair
*ref1
, const CpmlPair
*ref2
,
327 const CpmlPair
*org1
, const CpmlPair
*org2
,
333 adim
= adg_adim_new();
334 dim
= (AdgDim
*) adim
;
337 adg_dim_set_ref1_from_pair(dim
, ref1
);
340 adg_dim_set_ref2_from_pair(dim
, ref2
);
343 adg_dim_set_pos_from_pair(dim
, pos
);
346 adg_adim_set_org1_from_pair(adim
, org1
);
349 adg_adim_set_org2_from_pair(adim
, org2
);
355 * adg_adim_new_full_explicit:
356 * @ref1_x: the x coordinate of end point of the first line
357 * @ref1_y: the y coordinate of end point of the first line
358 * @ref2_x: the x coordinate of end point of the second line
359 * @ref2_y: the y coordinate of end point of the second line
360 * @org1_x: the x coordinate of start point of the first line
361 * @org1_y: the y coordinate of start point of the first line
362 * @org2_x: the x coordinate of start point of the second line
363 * @org2_y: the y coordinate of start point of the second line
364 * @pos_x: the x coordinate of the position reference
365 * @pos_y: the y coordinate of the position reference
367 * Wrappes adg_adim_new_full() with explicit values.
369 * Returns: the newly created linear dimension entity
374 adg_adim_new_full_explicit(gdouble ref1_x
, gdouble ref1_y
,
375 gdouble ref2_x
, gdouble ref2_y
,
376 gdouble org1_x
, gdouble org1_y
,
377 gdouble org2_x
, gdouble org2_y
,
378 gdouble pos_x
, gdouble pos_y
)
380 CpmlPair ref1
, ref2
, org1
, org2
, pos
;
393 return adg_adim_new_full(&ref1
, &ref2
, &org1
, &org2
, &pos
);
397 * adg_adim_new_full_from_model:
398 * @model: (transfer none): the model from which the named pairs are taken
399 * @ref1: (allow-none): the end point of the first line
400 * @ref2: (allow-none): the end point of the second line
401 * @org1: (allow-none): the origin of the first line
402 * @org2: (allow-none): the origin of the second line
403 * @pos: (allow-none): the position reference
405 * Creates a new angular dimension, specifing all the needed properties
406 * in one shot and using named pairs from @model.
408 * Returns: the newly created angular dimension entity
413 adg_adim_new_full_from_model(AdgModel
*model
,
414 const gchar
*ref1
, const gchar
*ref2
,
415 const gchar
*org1
, const gchar
*org2
,
421 adim
= adg_adim_new();
422 dim
= (AdgDim
*) adim
;
425 adg_dim_set_ref1_from_model(dim
, model
, ref1
);
428 adg_dim_set_ref2_from_model(dim
, model
, ref2
);
431 adg_dim_set_pos_from_model(dim
, model
, pos
);
434 adg_adim_set_org1_from_model(adim
, model
, org1
);
437 adg_adim_set_org2_from_model(adim
, model
, org2
);
445 * @org1: the new point to use as first reference
447 * Sets the #AdgADim:org1 property to @org1. The old point
448 * is silently discarded, unreferencing its model if that
449 * point was bound to a named pair (hence, possibly destroying
450 * the model if this was the last reference).
452 * @org1 can be %NULL, in which case the point is destroyed.
457 adg_adim_set_org1(AdgADim
*adim
, const AdgPoint
*org1
)
459 g_return_if_fail(ADG_IS_ADIM(adim
));
460 g_object_set(adim
, "org1", org1
, NULL
);
464 * adg_adim_set_org1_explicit:
466 * @x: x coordinate of the first reference point
467 * @y: y coordinate of the first reference point
469 * Sets the #AdgADim:org1 property to the (@x, @y) explicit
470 * coordinates. The old point is silently discarded,
471 * unreferencing its model if that point was bound to a named
472 * pair (hence, possibly destroying the model if this was the
478 adg_adim_set_org1_explicit(AdgADim
*adim
, gdouble x
, gdouble y
)
480 AdgPoint
*point
= adg_point_new();
482 adg_point_set_pair_explicit(point
, x
, y
);
483 adg_adim_set_org1(adim
, point
);
485 adg_point_destroy(point
);
489 * adg_adim_set_org1_from_pair:
491 * @org1: the coordinates pair of the first reference point
493 * Convenient function to set the #AdgADim:org1 property using a
494 * pair instead of explicit coordinates.
499 adg_adim_set_org1_from_pair(AdgADim
*adim
, const CpmlPair
*org1
)
501 g_return_if_fail(org1
!= NULL
);
503 adg_adim_set_org1_explicit(adim
, org1
->x
, org1
->y
);
507 * adg_adim_set_org1_from_model:
509 * @model: the source #AdgModel
510 * @org1: a named pair in @model
512 * Binds #AdgADim:org1 to the @org1 named pair of @model. If @model
513 * is %NULL, the point will be unset. In any case, the old point
514 * is silently discarded, unreferencing its model if that point
515 * was bound to a named pair (hence, possibly destroying the model
516 * if this was the last reference).
518 * The assignment is lazy so @org1 could be not be present in @model.
519 * Anyway, at the first access to this point an error will be raised
520 * if the named pair is still missing.
525 adg_adim_set_org1_from_model(AdgADim
*adim
, AdgModel
*model
, const gchar
*org1
)
527 AdgPoint
*point
= adg_point_new();
529 adg_point_set_pair_from_model(point
, model
, org1
);
530 adg_adim_set_org1(adim
, point
);
532 adg_point_destroy(point
);
539 * Gets the #AdgADim:org1 point. The returned point is internally owned
540 * and must not be freed or modified.
542 * Returns: (transfer none): the first reference point
547 adg_adim_get_org1(AdgADim
*adim
)
549 AdgADimPrivate
*data
;
551 g_return_val_if_fail(ADG_IS_ADIM(adim
), NULL
);
561 * @org2: the new point to use as first reference
563 * Sets the #AdgADim:org2 property to @org2. The old point
564 * is silently discarded, unreferencing its model if that
565 * point was bound to a named pair (hence, possibly destroying
566 * the model if this was the last reference).
568 * @org2 can be %NULL, in which case the point is destroyed.
573 adg_adim_set_org2(AdgADim
*adim
, const AdgPoint
*org2
)
575 g_return_if_fail(ADG_IS_ADIM(adim
));
576 g_object_set(adim
, "org2", org2
, NULL
);
580 * adg_adim_set_org2_explicit:
582 * @x: x coordinate of the first reference point
583 * @y: y coordinate of the first reference point
585 * Sets the #AdgADim:org2 property to the (@x, @y) explicit
586 * coordinates. The old point is silently discarded,
587 * unreferencing its model if that point was bound to a named
588 * pair (hence, possibly destroying the model if this was the
594 adg_adim_set_org2_explicit(AdgADim
*adim
, gdouble x
, gdouble y
)
596 AdgPoint
*point
= adg_point_new();
598 adg_point_set_pair_explicit(point
, x
, y
);
599 adg_adim_set_org2(adim
, point
);
601 adg_point_destroy(point
);
605 * adg_adim_set_org2_from_pair:
607 * @org2: the coordinates pair of the first reference point
609 * Convenient function to set the #AdgADim:org2 property using a
610 * pair instead of explicit coordinates.
615 adg_adim_set_org2_from_pair(AdgADim
*adim
, const CpmlPair
*org2
)
617 g_return_if_fail(org2
!= NULL
);
619 adg_adim_set_org2_explicit(adim
, org2
->x
, org2
->y
);
623 * adg_adim_set_org2_from_model:
625 * @model: the source #AdgModel
626 * @org2: a named pair in @model
628 * Binds #AdgADim:org2 to the @org2 named pair of @model. If @model
629 * is %NULL, the point will be unset. In any case, the old point
630 * is silently discarded, unreferencing its model if that point
631 * was bound to a named pair (hence, possibly destroying the model
632 * if this was the last reference).
634 * The assignment is lazy so @org2 could be not be present in @model.
635 * Anyway, at the first access to this point an error will be raised
636 * if the named pair is still missing.
641 adg_adim_set_org2_from_model(AdgADim
*adim
, AdgModel
*model
, const gchar
*org2
)
643 AdgPoint
*point
= adg_point_new();
645 adg_point_set_pair_from_model(point
, model
, org2
);
646 adg_adim_set_org2(adim
, point
);
648 adg_point_destroy(point
);
655 * Gets the #AdgADim:org2 point. The returned point is internally owned
656 * and must not be freed or modified.
658 * Returns: (transfer none): the second reference point
663 adg_adim_get_org2(AdgADim
*adim
)
665 AdgADimPrivate
*data
;
667 g_return_val_if_fail(ADG_IS_ADIM(adim
), NULL
);
675 * adg_adim_switch_extension1:
676 * @adim: an #AdgADim entity
677 * @new_state: the new state
679 * Shows (if @new_state is %TRUE) or hides (if @new_state is %FALSE)
680 * the first extension line of @adim.
685 adg_adim_switch_extension1(AdgADim
*adim
, gboolean new_state
)
687 g_return_if_fail(ADG_IS_ADIM(adim
));
688 g_return_if_fail(adg_is_boolean_value(new_state
));
689 g_object_set(adim
, "has-extension1", new_state
, NULL
);
693 * adg_adim_has_extension1:
694 * @adim: an #AdgADim entity
696 * Checks if @adim should render the first extension line.
698 * Returns: %TRUE on first extension line presents, %FALSE otherwise
703 adg_adim_has_extension1(AdgADim
*adim
)
705 AdgADimPrivate
*data
;
707 g_return_val_if_fail(ADG_IS_ADIM(adim
), FALSE
);
711 return data
->has_extension1
;
715 * adg_adim_switch_extension2:
716 * @adim: an #AdgADim entity
717 * @new_state: the new new_state
719 * Shows (if @new_state is %TRUE) or hides (if @new_state is %FALSE)
720 * the second extension line of @adim.
725 adg_adim_switch_extension2(AdgADim
*adim
, gboolean new_state
)
727 g_return_if_fail(ADG_IS_ADIM(adim
));
728 g_return_if_fail(adg_is_boolean_value(new_state
));
729 g_object_set(adim
, "has-extension2", new_state
, NULL
);
733 * adg_adim_has_extension2:
734 * @adim: an #AdgADim entity
736 * Checks if @adim should render the second extension line.
738 * Returns: %TRUE on first extension line presents, %FALSE otherwise
743 adg_adim_has_extension2(AdgADim
*adim
)
745 AdgADimPrivate
*data
;
747 g_return_val_if_fail(ADG_IS_ADIM(adim
), FALSE
);
751 return data
->has_extension2
;
756 _adg_global_changed(AdgEntity
*entity
)
758 AdgADimPrivate
*data
= ((AdgADim
*) entity
)->data
;
760 _adg_unset_trail((AdgADim
*) entity
);
762 if (_ADG_OLD_ENTITY_CLASS
->global_changed
)
763 _ADG_OLD_ENTITY_CLASS
->global_changed(entity
);
765 if (data
->marker1
!= NULL
)
766 adg_entity_global_changed((AdgEntity
*) data
->marker1
);
768 if (data
->marker2
!= NULL
)
769 adg_entity_global_changed((AdgEntity
*) data
->marker2
);
773 _adg_local_changed(AdgEntity
*entity
)
775 _adg_unset_trail((AdgADim
*) entity
);
777 if (_ADG_OLD_ENTITY_CLASS
->local_changed
)
778 _ADG_OLD_ENTITY_CLASS
->local_changed(entity
);
782 _adg_invalidate(AdgEntity
*entity
)
785 AdgADimPrivate
*data
;
787 adim
= (AdgADim
*) entity
;
790 _adg_dispose_trail(adim
);
791 _adg_dispose_markers(adim
);
792 data
->geometry_arranged
= FALSE
;
793 _adg_unset_trail(adim
);
796 adg_point_invalidate(data
->org1
);
798 adg_point_invalidate(data
->org2
);
800 if (_ADG_OLD_ENTITY_CLASS
->invalidate
)
801 _ADG_OLD_ENTITY_CLASS
->invalidate(entity
);
805 _adg_arrange(AdgEntity
*entity
)
809 AdgADimPrivate
*data
;
811 const cairo_matrix_t
*global
, *local
;
812 CpmlPair ref1
, ref2
, base1
, base12
, base2
;
815 AdgEntity
*marker_entity
;
817 if (_ADG_OLD_ENTITY_CLASS
->arrange
)
818 _ADG_OLD_ENTITY_CLASS
->arrange(entity
);
820 adim
= (AdgADim
*) entity
;
822 if (! _adg_update_geometry(adim
))
825 dim
= (AdgDim
*) adim
;
827 quote
= adg_dim_get_quote(dim
);
829 _adg_update_entities(adim
);
831 if (data
->cairo
.path
.status
== CAIRO_STATUS_SUCCESS
) {
832 AdgEntity
*quote_entity
= (AdgEntity
*) quote
;
833 adg_entity_set_global_map(quote_entity
, &data
->quote
.global_map
);
837 global
= adg_entity_get_global_matrix(entity
);
838 local
= adg_entity_get_local_matrix(entity
);
839 extents
.is_defined
= FALSE
;
841 cpml_pair_copy(&ref1
, (CpmlPair
*) adg_dim_get_ref1(dim
));
842 cpml_pair_copy(&ref2
, (CpmlPair
*) adg_dim_get_ref2(dim
));
843 cpml_pair_copy(&base1
, &data
->point
.base1
);
844 cpml_pair_copy(&base12
, &data
->point
.base12
);
845 cpml_pair_copy(&base2
, &data
->point
.base2
);
847 /* Apply the local matrix to the relevant points */
848 cpml_pair_transform(&ref1
, local
);
849 cpml_pair_transform(&ref2
, local
);
850 cpml_pair_transform(&base1
, local
);
851 cpml_pair_transform(&base12
, local
);
852 cpml_pair_transform(&base2
, local
);
854 /* Combine points and global shifts to build the path */
855 pair
.x
= ref1
.x
+ data
->shift
.from1
.x
;
856 pair
.y
= ref1
.y
+ data
->shift
.from1
.y
;
857 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[6]);
859 pair
.x
= base1
.x
+ data
->shift
.base1
.x
;
860 pair
.y
= base1
.y
+ data
->shift
.base1
.y
;
861 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[1]);
863 pair
.x
+= data
->shift
.to1
.x
;
864 pair
.y
+= data
->shift
.to1
.y
;
865 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[8]);
867 pair
.x
= base12
.x
+ data
->shift
.base12
.x
;
868 pair
.y
= base12
.y
+ data
->shift
.base12
.y
;
869 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[3]);
871 pair
.x
= ref2
.x
+ data
->shift
.from2
.x
;
872 pair
.y
= ref2
.y
+ data
->shift
.from2
.y
;
873 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[10]);
875 pair
.x
= base2
.x
+ data
->shift
.base2
.x
;
876 pair
.y
= base2
.y
+ data
->shift
.base2
.y
;
877 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[4]);
879 pair
.x
+= data
->shift
.to2
.x
;
880 pair
.y
+= data
->shift
.to2
.y
;
881 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[12]);
883 /* Play with header lengths to show or hide the extension lines */
884 if (data
->has_extension1
) {
885 data
->cairo
.data
[7].header
.length
= data
->has_extension2
? 2 : 6;
887 data
->cairo
.data
[2].header
.length
= data
->has_extension2
? 7 : 11;
890 data
->cairo
.path
.status
= CAIRO_STATUS_SUCCESS
;
892 /* Arrange the quote */
894 AdgEntity
*quote_entity
;
898 quote_entity
= (AdgEntity
*) quote
;
899 angle
= adg_dim_quote_angle(dim
, (data
->angle1
+ data
->angle2
) / 2 + G_PI_2
);
900 cpml_pair_from_cairo(&pair
, &data
->cairo
.data
[3]);
902 adg_alignment_set_factor_explicit(quote
, 0.5, 0);
904 cairo_matrix_init_translate(&map
, pair
.x
, pair
.y
);
905 cairo_matrix_rotate(&map
, angle
);
906 adg_entity_set_global_map(quote_entity
, &map
);
907 adg_entity_arrange(quote_entity
);
908 cpml_extents_add(&extents
, adg_entity_get_extents(quote_entity
));
910 adg_matrix_copy(&data
->quote
.global_map
, &map
);
913 /* Arrange the trail */
914 if (data
->trail
!= NULL
) {
915 CpmlExtents trail_extents
;
916 cpml_extents_copy(&trail_extents
, adg_trail_get_extents(data
->trail
));
917 cpml_extents_transform(&trail_extents
, global
);
918 cpml_extents_add(&extents
, &trail_extents
);
920 _adg_dispose_markers(adim
);
923 /* Arrange the markers */
924 if (data
->marker1
!= NULL
) {
925 marker_entity
= (AdgEntity
*) data
->marker1
;
926 adg_marker_set_segment(data
->marker1
, data
->trail
, 1);
927 adg_entity_local_changed(marker_entity
);
928 adg_entity_arrange(marker_entity
);
929 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
931 if (data
->marker2
!= NULL
) {
932 marker_entity
= (AdgEntity
*) data
->marker2
;
933 adg_marker_set_segment(data
->marker2
, data
->trail
, 1);
934 adg_entity_local_changed(marker_entity
);
935 adg_entity_arrange(marker_entity
);
936 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
939 adg_entity_set_extents(entity
, &extents
);
943 _adg_render(AdgEntity
*entity
, cairo_t
*cr
)
947 AdgADimPrivate
*data
;
948 AdgDimStyle
*dim_style
;
950 const cairo_path_t
*cairo_path
;
952 adim
= (AdgADim
*) entity
;
955 if (!data
->geometry_arranged
) {
956 /* Entity not arranged, probably due to undefined pair found */
960 dim
= (AdgDim
*) entity
;
961 dim_style
= _ADG_GET_DIM_STYLE(dim
);
963 adg_style_apply((AdgStyle
*) dim_style
, entity
, cr
);
964 adg_entity_render((AdgEntity
*) adg_dim_get_quote(dim
), cr
);
966 if (data
->marker1
!= NULL
)
967 adg_entity_render((AdgEntity
*) data
->marker1
, cr
);
968 if (data
->marker2
!= NULL
)
969 adg_entity_render((AdgEntity
*) data
->marker2
, cr
);
971 cairo_transform(cr
, adg_entity_get_global_matrix(entity
));
972 dress
= adg_dim_style_get_line_dress(dim_style
);
973 adg_entity_apply_dress(entity
, dress
, cr
);
975 cairo_path
= adg_trail_get_cairo_path(data
->trail
);
976 cairo_append_path(cr
, cairo_path
);
981 _adg_default_value(AdgDim
*dim
)
984 AdgADimPrivate
*data
;
985 AdgDimStyle
*dim_style
;
989 adim
= (AdgADim
*) dim
;
991 dim_style
= _ADG_GET_DIM_STYLE(dim
);
992 format
= adg_dim_style_get_number_format(dim_style
);
994 if (! _adg_update_geometry(adim
))
995 return g_strdup("undef");
997 angle
= (data
->angle2
- data
->angle1
) * 180 / G_PI
;
998 return g_strdup_printf(format
, angle
);
1001 /* With "geometry" is considered any data (point, vector or angle)
1002 * that can be cached: this is strictly related on how the arrange()
1005 _adg_update_geometry(AdgADim
*adim
)
1007 AdgADimPrivate
*data
;
1008 AdgDimStyle
*dim_style
;
1009 gdouble from_offset
, to_offset
;
1010 gdouble spacing
, level
;
1011 CpmlVector vector
[3];
1017 /* Check for cached results */
1018 if (data
->geometry_arranged
)
1021 if (! _adg_get_info(adim
, vector
, ¢er
, &distance
))
1024 dim_style
= _ADG_GET_DIM_STYLE(adim
);
1025 from_offset
= adg_dim_style_get_from_offset(dim_style
);
1026 to_offset
= adg_dim_style_get_to_offset(dim_style
);
1027 spacing
= adg_dim_style_get_baseline_spacing(dim_style
);
1028 level
= adg_dim_get_level((AdgDim
*) adim
);
1031 cpml_vector_set_length(&vector
[0], from_offset
);
1032 cpml_pair_copy(&data
->shift
.from1
, &vector
[0]);
1035 cpml_vector_set_length(&vector
[0], level
* spacing
);
1036 cpml_pair_copy(&data
->shift
.base1
, &vector
[0]);
1039 cpml_vector_set_length(&vector
[0], to_offset
);
1040 cpml_pair_copy(&data
->shift
.to1
, &vector
[0]);
1043 cpml_vector_set_length(&vector
[2], from_offset
);
1044 cpml_pair_copy(&data
->shift
.from2
, &vector
[2]);
1047 cpml_vector_set_length(&vector
[2], level
* spacing
);
1048 cpml_pair_copy(&data
->shift
.base2
, &vector
[2]);
1051 cpml_vector_set_length(&vector
[2], to_offset
);
1052 cpml_pair_copy(&data
->shift
.to2
, &vector
[2]);
1055 cpml_vector_set_length(&vector
[1], level
* spacing
);
1056 cpml_pair_copy(&data
->shift
.base12
, &vector
[1]);
1058 /* Distance can be 0, so the following will leave the
1059 * vector array in undefined state */
1062 cpml_vector_set_length(&vector
[0], distance
);
1063 data
->point
.base1
.x
= vector
[0].x
+ center
.x
;
1064 data
->point
.base1
.y
= vector
[0].y
+ center
.y
;
1067 cpml_vector_set_length(&vector
[2], distance
);
1068 data
->point
.base2
.x
= vector
[2].x
+ center
.x
;
1069 data
->point
.base2
.y
= vector
[2].y
+ center
.y
;
1072 cpml_vector_set_length(&vector
[1], distance
);
1073 data
->point
.base12
.x
= vector
[1].x
+ center
.x
;
1074 data
->point
.base12
.y
= vector
[1].y
+ center
.y
;
1076 data
->geometry_arranged
= TRUE
;
1082 _adg_update_entities(AdgADim
*adim
)
1085 AdgADimPrivate
*data
;
1086 AdgDimStyle
*dim_style
;
1088 entity
= (AdgEntity
*) adim
;
1090 dim_style
= _ADG_GET_DIM_STYLE(adim
);
1092 if (data
->trail
== NULL
)
1093 data
->trail
= adg_trail_new(_adg_trail_callback
, adim
);
1095 if (data
->marker1
== NULL
) {
1096 data
->marker1
= adg_dim_style_marker1_new(dim_style
);
1097 adg_entity_set_parent((AdgEntity
*) data
->marker1
, entity
);
1100 if (data
->marker2
== NULL
) {
1101 data
->marker2
= adg_dim_style_marker2_new(dim_style
);
1102 adg_entity_set_parent((AdgEntity
*) data
->marker2
, entity
);
1107 _adg_unset_trail(AdgADim
*adim
)
1109 AdgADimPrivate
*data
= adim
->data
;
1111 if (data
->trail
!= NULL
)
1112 adg_model_clear((AdgModel
*) data
->trail
);
1114 data
->cairo
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
1118 _adg_dispose_trail(AdgADim
*adim
)
1120 AdgADimPrivate
*data
= adim
->data
;
1122 if (data
->trail
!= NULL
) {
1123 g_object_unref(data
->trail
);
1129 _adg_dispose_markers(AdgADim
*adim
)
1131 AdgADimPrivate
*data
= adim
->data
;
1133 if (data
->marker1
!= NULL
) {
1134 g_object_unref(data
->marker1
);
1135 data
->marker1
= NULL
;
1138 if (data
->marker2
!= NULL
) {
1139 g_object_unref(data
->marker2
);
1140 data
->marker2
= NULL
;
1145 _adg_get_info(AdgADim
*adim
, CpmlVector vector
[],
1146 CpmlPair
*center
, gdouble
*distance
)
1149 AdgADimPrivate
*data
;
1150 AdgPoint
*ref1_point
, *ref2_point
, *pos_point
;
1151 const CpmlPair
*ref1
, *ref2
, *pos
;
1152 const CpmlPair
*org1
, *org2
;
1155 dim
= (AdgDim
*) adim
;
1157 ref1_point
= adg_dim_get_ref1(dim
);
1158 ref2_point
= adg_dim_get_ref2(dim
);
1159 pos_point
= adg_dim_get_pos(dim
);
1161 /* Check if the needed points are all properly defined */
1162 if (! adg_point_update(ref1_point
) ||
1163 ! adg_point_update(ref2_point
) ||
1164 ! adg_point_update(pos_point
) ||
1165 ! adg_point_update(data
->org1
) ||
1166 ! adg_point_update(data
->org2
))
1171 ref1
= (CpmlPair
*) ref1_point
;
1172 ref2
= (CpmlPair
*) ref2_point
;
1173 pos
= (CpmlPair
*) pos_point
;
1174 org1
= (CpmlPair
*) data
->org1
;
1175 org2
= (CpmlPair
*) data
->org2
;
1177 /* Check if the given points have valid coordinates */
1178 if (cpml_pair_equal(ref1
, org1
)) {
1179 g_warning(_("%s: ref1 and org1 cannot be coincidents (%lf, %lf)"),
1180 G_STRLOC
, ref1
->x
, ref1
->y
);
1184 if (cpml_pair_equal(ref2
, org2
)) {
1185 g_warning(_("%s: ref2 and org2 cannot be coincidents (%lf, %lf)"),
1186 G_STRLOC
, ref2
->x
, ref2
->y
);
1190 vector
[0].x
= ref1
->x
- org1
->x
;
1191 vector
[0].y
= ref1
->y
- org1
->y
;
1192 vector
[2].x
= ref2
->x
- org2
->x
;
1193 vector
[2].y
= ref2
->y
- org2
->y
;
1195 factor
= vector
[0].x
* vector
[2].y
- vector
[0].y
* vector
[2].x
;
1197 /* Parallel lines: hang with an error message */
1198 g_warning(_("%s: trying to set an angular dimension on parallel lines"),
1203 factor
= ((ref1
->y
- ref2
->y
) * vector
[2].x
-
1204 (ref1
->x
- ref2
->x
) * vector
[2].y
) / factor
;
1206 center
->x
= ref1
->x
+ vector
[0].x
* factor
;
1207 center
->y
= ref1
->y
+ vector
[0].y
* factor
;
1208 *distance
= cpml_pair_distance(center
, pos
);
1209 data
->angle1
= cpml_vector_angle(&vector
[0]);
1210 data
->angle2
= cpml_vector_angle(&vector
[2]);
1211 while (data
->angle2
< data
->angle1
)
1212 data
->angle2
+= G_PI
* 2;
1214 cpml_vector_from_angle(&vector
[1], (data
->angle1
+ data
->angle2
) / 2);
1219 static cairo_path_t
*
1220 _adg_trail_callback(AdgTrail
*trail
, gpointer user_data
)
1223 AdgADimPrivate
*data
;
1225 adim
= (AdgADim
*) user_data
;
1228 return &data
->cairo
.path
;