1 /* ADG - Automatic Drawing Generation
2 * Copyright (C) 2007,2008,2009,2010,2011,2012 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 CpmlPath
* _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
->cpml
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
186 data
->cpml
.path
.data
= data
->cpml
.data
;
187 data
->cpml
.path
.num_data
= G_N_ELEMENTS(data
->cpml
.data
);
188 data
->cpml
.path
.data
[0] = move_to
;
189 data
->cpml
.path
.data
[2] = arc_to
;
190 data
->cpml
.path
.data
[5] = move_to
;
191 data
->cpml
.path
.data
[7] = line_to
;
192 data
->cpml
.path
.data
[9] = move_to
;
193 data
->cpml
.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
317 * Creates a new angular dimension, specifing all the needed
318 * properties in one shot using #AdgPair.
320 * Returns: the newly created angular dimension entity
325 adg_adim_new_full(const AdgPair
*ref1
, const AdgPair
*ref2
,
326 const AdgPair
*org1
, const AdgPair
*org2
,
332 adim
= adg_adim_new();
333 dim
= (AdgDim
*) adim
;
336 adg_dim_set_ref1_from_pair(dim
, ref1
);
339 adg_dim_set_ref2_from_pair(dim
, ref2
);
342 adg_dim_set_pos_from_pair(dim
, pos
);
345 adg_adim_set_org1_from_pair(adim
, org1
);
348 adg_adim_set_org2_from_pair(adim
, org2
);
354 * adg_adim_new_full_explicit:
355 * @ref1_x: the x coordinate of end point of the first line
356 * @ref1_y: the y coordinate of end point of the first line
357 * @ref2_x: the x coordinate of end point of the second line
358 * @ref2_y: the y coordinate of end point of the second line
359 * @org1_x: the x coordinate of start point of the first line
360 * @org1_y: the y coordinate of start point of the first line
361 * @org2_x: the x coordinate of start point of the second line
362 * @org2_y: the y coordinate of start point of the second line
363 * @pos_x: the x coordinate of the position reference
364 * @pos_y: the y coordinate of the position reference
366 * Wrappes adg_adim_new_full() with explicit values.
368 * Returns: the newly created linear dimension entity
373 adg_adim_new_full_explicit(gdouble ref1_x
, gdouble ref1_y
,
374 gdouble ref2_x
, gdouble ref2_y
,
375 gdouble org1_x
, gdouble org1_y
,
376 gdouble org2_x
, gdouble org2_y
,
377 gdouble pos_x
, gdouble pos_y
)
379 AdgPair ref1
, ref2
, org1
, org2
, pos
;
392 return adg_adim_new_full(&ref1
, &ref2
, &org1
, &org2
, &pos
);
396 * adg_adim_new_full_from_model:
397 * @model: transfer-none: the model from which the named pairs are taken
398 * @ref1: allow-none: the end point of the first line
399 * @ref2: allow-none: the end point of the second line
400 * @org1: allow-none: the origin of the first line
401 * @org2: allow-none: the origin of the second line
402 * @pos: allow-none: the position reference
404 * Creates a new angular dimension, specifing all the needed properties
405 * in one shot and using named pairs from @model.
407 * Returns: the newly created angular dimension entity
412 adg_adim_new_full_from_model(AdgModel
*model
,
413 const gchar
*ref1
, const gchar
*ref2
,
414 const gchar
*org1
, const gchar
*org2
,
420 adim
= adg_adim_new();
421 dim
= (AdgDim
*) adim
;
424 adg_dim_set_ref1_from_model(dim
, model
, ref1
);
427 adg_dim_set_ref2_from_model(dim
, model
, ref2
);
430 adg_dim_set_pos_from_model(dim
, model
, pos
);
433 adg_adim_set_org1_from_model(adim
, model
, org1
);
436 adg_adim_set_org2_from_model(adim
, model
, org2
);
444 * @org1: the new point to use as first reference
446 * Sets the #AdgADim:org1 property to @org1. The old point
447 * is silently discarded, unreferencing its model if that
448 * point was bound to a named pair (hence, possibly destroying
449 * the model if this was the last reference).
451 * @org1 can be %NULL, in which case the point is destroyed.
456 adg_adim_set_org1(AdgADim
*adim
, const AdgPoint
*org1
)
458 g_return_if_fail(ADG_IS_ADIM(adim
));
459 g_object_set(adim
, "org1", org1
, NULL
);
463 * adg_adim_set_org1_explicit:
465 * @x: x coordinate of the first reference point
466 * @y: y coordinate of the first reference point
468 * Sets the #AdgADim:org1 property to the (@x, @y) explicit
469 * coordinates. The old point is silently discarded,
470 * unreferencing its model if that point was bound to a named
471 * pair (hence, possibly destroying the model if this was the
477 adg_adim_set_org1_explicit(AdgADim
*adim
, gdouble x
, gdouble y
)
479 AdgPoint
*point
= adg_point_new();
481 adg_point_set_pair_explicit(point
, x
, y
);
482 adg_adim_set_org1(adim
, point
);
484 adg_point_destroy(point
);
488 * adg_adim_set_org1_from_pair:
490 * @org1: the coordinates pair of the first reference point
492 * Convenient function to set the #AdgADim:org1 property using a
493 * pair instead of explicit coordinates.
498 adg_adim_set_org1_from_pair(AdgADim
*adim
, const AdgPair
*org1
)
500 g_return_if_fail(org1
!= NULL
);
502 adg_adim_set_org1_explicit(adim
, org1
->x
, org1
->y
);
506 * adg_adim_set_org1_from_model:
508 * @model: the source #AdgModel
509 * @org1: a named pair in @model
511 * Binds #AdgADim:org1 to the @org1 named pair of @model. If @model
512 * is %NULL, the point will be unset. In any case, the old point
513 * is silently discarded, unreferencing its model if that point
514 * was bound to a named pair (hence, possibly destroying the model
515 * if this was the last reference).
517 * The assignment is lazy so @org1 could be not be present in @model.
518 * Anyway, at the first access to this point an error will be raised
519 * if the named pair is still missing.
524 adg_adim_set_org1_from_model(AdgADim
*adim
, AdgModel
*model
, const gchar
*org1
)
526 AdgPoint
*point
= adg_point_new();
528 adg_point_set_pair_from_model(point
, model
, org1
);
529 adg_adim_set_org1(adim
, point
);
531 adg_point_destroy(point
);
538 * Gets the #AdgADim:org1 point. The returned point is internally owned
539 * and must not be freed or modified. Anyway, it is not const because
540 * adg_point_get_pair() must be able to modify the internal cache of
541 * the returned point.
543 * Returns: the first reference point
548 adg_adim_get_org1(AdgADim
*adim
)
550 AdgADimPrivate
*data
;
552 g_return_val_if_fail(ADG_IS_ADIM(adim
), NULL
);
562 * @org2: the new point to use as first reference
564 * Sets the #AdgADim:org2 property to @org2. The old point
565 * is silently discarded, unreferencing its model if that
566 * point was bound to a named pair (hence, possibly destroying
567 * the model if this was the last reference).
569 * @org2 can be %NULL, in which case the point is destroyed.
574 adg_adim_set_org2(AdgADim
*adim
, const AdgPoint
*org2
)
576 g_return_if_fail(ADG_IS_ADIM(adim
));
577 g_object_set(adim
, "org2", org2
, NULL
);
581 * adg_adim_set_org2_explicit:
583 * @x: x coordinate of the first reference point
584 * @y: y coordinate of the first reference point
586 * Sets the #AdgADim:org2 property to the (@x, @y) explicit
587 * coordinates. The old point is silently discarded,
588 * unreferencing its model if that point was bound to a named
589 * pair (hence, possibly destroying the model if this was the
595 adg_adim_set_org2_explicit(AdgADim
*adim
, gdouble x
, gdouble y
)
597 AdgPoint
*point
= adg_point_new();
599 adg_point_set_pair_explicit(point
, x
, y
);
600 adg_adim_set_org2(adim
, point
);
602 adg_point_destroy(point
);
606 * adg_adim_set_org2_from_pair:
608 * @org2: the coordinates pair of the first reference point
610 * Convenient function to set the #AdgADim:org2 property using a
611 * pair instead of explicit coordinates.
616 adg_adim_set_org2_from_pair(AdgADim
*adim
, const AdgPair
*org2
)
618 g_return_if_fail(org2
!= NULL
);
620 adg_adim_set_org2_explicit(adim
, org2
->x
, org2
->y
);
624 * adg_adim_set_org2_from_model:
626 * @model: the source #AdgModel
627 * @org2: a named pair in @model
629 * Binds #AdgADim:org2 to the @org2 named pair of @model. If @model
630 * is %NULL, the point will be unset. In any case, the old point
631 * is silently discarded, unreferencing its model if that point
632 * was bound to a named pair (hence, possibly destroying the model
633 * if this was the last reference).
635 * The assignment is lazy so @org2 could be not be present in @model.
636 * Anyway, at the first access to this point an error will be raised
637 * if the named pair is still missing.
642 adg_adim_set_org2_from_model(AdgADim
*adim
, AdgModel
*model
, const gchar
*org2
)
644 AdgPoint
*point
= adg_point_new();
646 adg_point_set_pair_from_model(point
, model
, org2
);
647 adg_adim_set_org2(adim
, point
);
649 adg_point_destroy(point
);
656 * Gets the #AdgADim:org2 point. The returned point is internally owned
657 * and must not be freed or modified. Anyway, it is not const because
658 * adg_point_get_pair() must be able to modify the internal cache of
659 * the returned point.
661 * Returns: the first reference point
666 adg_adim_get_org2(AdgADim
*adim
)
668 AdgADimPrivate
*data
;
670 g_return_val_if_fail(ADG_IS_ADIM(adim
), NULL
);
678 * adg_adim_switch_extension1:
679 * @adim: an #AdgADim entity
680 * @new_state: the new state
682 * Shows (if @new_state is %TRUE) or hides (if @new_state is %FALSE)
683 * the first extension line of @adim.
688 adg_adim_switch_extension1(AdgADim
*adim
, gboolean new_state
)
690 g_return_if_fail(ADG_IS_ADIM(adim
));
691 g_return_if_fail(adg_is_boolean_value(new_state
));
692 g_object_set(adim
, "has-extension1", new_state
, NULL
);
696 * adg_adim_has_extension1:
697 * @adim: an #AdgADim entity
699 * Checks if @adim should render the first extension line.
701 * Returns: %TRUE on first extension line presents, %FALSE otherwise
706 adg_adim_has_extension1(AdgADim
*adim
)
708 AdgADimPrivate
*data
;
710 g_return_val_if_fail(ADG_IS_ADIM(adim
), FALSE
);
714 return data
->has_extension1
;
718 * adg_adim_switch_extension2:
719 * @adim: an #AdgADim entity
720 * @new_state: the new new_state
722 * Shows (if @new_state is %TRUE) or hides (if @new_state is %FALSE)
723 * the second extension line of @adim.
728 adg_adim_switch_extension2(AdgADim
*adim
, gboolean new_state
)
730 g_return_if_fail(ADG_IS_ADIM(adim
));
731 g_return_if_fail(adg_is_boolean_value(new_state
));
732 g_object_set(adim
, "has-extension2", new_state
, NULL
);
736 * adg_adim_has_extension2:
737 * @adim: an #AdgADim entity
739 * Checks if @adim should render the second extension line.
741 * Returns: %TRUE on first extension line presents, %FALSE otherwise
746 adg_adim_has_extension2(AdgADim
*adim
)
748 AdgADimPrivate
*data
;
750 g_return_val_if_fail(ADG_IS_ADIM(adim
), FALSE
);
754 return data
->has_extension2
;
759 _adg_global_changed(AdgEntity
*entity
)
761 AdgADimPrivate
*data
= ((AdgADim
*) entity
)->data
;
763 _adg_unset_trail((AdgADim
*) entity
);
765 if (_ADG_OLD_ENTITY_CLASS
->global_changed
)
766 _ADG_OLD_ENTITY_CLASS
->global_changed(entity
);
768 if (data
->marker1
!= NULL
)
769 adg_entity_global_changed((AdgEntity
*) data
->marker1
);
771 if (data
->marker2
!= NULL
)
772 adg_entity_global_changed((AdgEntity
*) data
->marker2
);
776 _adg_local_changed(AdgEntity
*entity
)
778 _adg_unset_trail((AdgADim
*) entity
);
780 if (_ADG_OLD_ENTITY_CLASS
->local_changed
)
781 _ADG_OLD_ENTITY_CLASS
->local_changed(entity
);
785 _adg_invalidate(AdgEntity
*entity
)
788 AdgADimPrivate
*data
;
790 adim
= (AdgADim
*) entity
;
793 _adg_dispose_trail(adim
);
794 _adg_dispose_markers(adim
);
795 data
->geometry_arranged
= FALSE
;
796 _adg_unset_trail(adim
);
799 adg_point_invalidate(data
->org1
);
801 adg_point_invalidate(data
->org2
);
803 if (_ADG_OLD_ENTITY_CLASS
->invalidate
)
804 _ADG_OLD_ENTITY_CLASS
->invalidate(entity
);
808 _adg_arrange(AdgEntity
*entity
)
812 AdgADimPrivate
*data
;
814 const AdgMatrix
*global
, *local
;
815 AdgPair ref1
, ref2
, base1
, base12
, base2
;
818 AdgEntity
*marker_entity
;
820 if (_ADG_OLD_ENTITY_CLASS
->arrange
)
821 _ADG_OLD_ENTITY_CLASS
->arrange(entity
);
823 adim
= (AdgADim
*) entity
;
825 if (!_adg_update_geometry(adim
))
828 dim
= (AdgDim
*) adim
;
830 quote
= adg_dim_get_quote(dim
);
832 _adg_update_entities(adim
);
834 if (data
->cpml
.path
.status
== CAIRO_STATUS_SUCCESS
) {
835 AdgEntity
*quote_entity
= (AdgEntity
*) quote
;
836 adg_entity_set_global_map(quote_entity
, &data
->quote
.global_map
);
840 global
= adg_entity_get_global_matrix(entity
);
841 local
= adg_entity_get_local_matrix(entity
);
842 extents
.is_defined
= FALSE
;
844 cpml_pair_copy(&ref1
, adg_point_get_pair(adg_dim_get_ref1(dim
)));
845 cpml_pair_copy(&ref2
, adg_point_get_pair(adg_dim_get_ref2(dim
)));
846 cpml_pair_copy(&base1
, &data
->point
.base1
);
847 cpml_pair_copy(&base12
, &data
->point
.base12
);
848 cpml_pair_copy(&base2
, &data
->point
.base2
);
850 /* Apply the local matrix to the relevant points */
851 cpml_pair_transform(&ref1
, local
);
852 cpml_pair_transform(&ref2
, local
);
853 cpml_pair_transform(&base1
, local
);
854 cpml_pair_transform(&base12
, local
);
855 cpml_pair_transform(&base2
, local
);
857 /* Combine points and global shifts to build the path */
858 pair
.x
= ref1
.x
+ data
->shift
.from1
.x
;
859 pair
.y
= ref1
.y
+ data
->shift
.from1
.y
;
860 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[6]);
862 pair
.x
= base1
.x
+ data
->shift
.base1
.x
;
863 pair
.y
= base1
.y
+ data
->shift
.base1
.y
;
864 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[1]);
866 pair
.x
+= data
->shift
.to1
.x
;
867 pair
.y
+= data
->shift
.to1
.y
;
868 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[8]);
870 pair
.x
= base12
.x
+ data
->shift
.base12
.x
;
871 pair
.y
= base12
.y
+ data
->shift
.base12
.y
;
872 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[3]);
874 pair
.x
= ref2
.x
+ data
->shift
.from2
.x
;
875 pair
.y
= ref2
.y
+ data
->shift
.from2
.y
;
876 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[10]);
878 pair
.x
= base2
.x
+ data
->shift
.base2
.x
;
879 pair
.y
= base2
.y
+ data
->shift
.base2
.y
;
880 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[4]);
882 pair
.x
+= data
->shift
.to2
.x
;
883 pair
.y
+= data
->shift
.to2
.y
;
884 cpml_pair_to_cairo(&pair
, &data
->cpml
.data
[12]);
886 /* Play with header lengths to show or hide the extension lines */
887 if (data
->has_extension1
) {
888 data
->cpml
.data
[7].header
.length
= data
->has_extension2
? 2 : 6;
890 data
->cpml
.data
[2].header
.length
= data
->has_extension2
? 7 : 11;
893 data
->cpml
.path
.status
= CAIRO_STATUS_SUCCESS
;
895 /* Arrange the quote */
897 AdgEntity
*quote_entity
;
901 quote_entity
= (AdgEntity
*) quote
;
902 angle
= adg_dim_quote_angle(dim
, (data
->angle1
+ data
->angle2
) / 2 + G_PI_2
);
903 cpml_pair_from_cairo(&pair
, &data
->cpml
.data
[3]);
905 adg_alignment_set_factor_explicit(quote
, 0.5, 0);
907 cairo_matrix_init_translate(&map
, pair
.x
, pair
.y
);
908 cairo_matrix_rotate(&map
, angle
);
909 adg_entity_set_global_map(quote_entity
, &map
);
910 adg_entity_arrange(quote_entity
);
911 cpml_extents_add(&extents
, adg_entity_get_extents(quote_entity
));
913 adg_matrix_copy(&data
->quote
.global_map
, &map
);
916 /* Arrange the trail */
917 if (data
->trail
!= NULL
) {
918 CpmlExtents trail_extents
;
919 cpml_extents_copy(&trail_extents
, adg_trail_get_extents(data
->trail
));
920 cpml_extents_transform(&trail_extents
, global
);
921 cpml_extents_add(&extents
, &trail_extents
);
923 _adg_dispose_markers(adim
);
926 /* Arrange the markers */
927 if (data
->marker1
!= NULL
) {
928 marker_entity
= (AdgEntity
*) data
->marker1
;
929 adg_marker_set_segment(data
->marker1
, data
->trail
, 1);
930 adg_entity_local_changed(marker_entity
);
931 adg_entity_arrange(marker_entity
);
932 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
934 if (data
->marker2
!= NULL
) {
935 marker_entity
= (AdgEntity
*) data
->marker2
;
936 adg_marker_set_segment(data
->marker2
, data
->trail
, 1);
937 adg_entity_local_changed(marker_entity
);
938 adg_entity_arrange(marker_entity
);
939 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
942 adg_entity_set_extents(entity
, &extents
);
946 _adg_render(AdgEntity
*entity
, cairo_t
*cr
)
950 AdgADimPrivate
*data
;
951 AdgDimStyle
*dim_style
;
953 const cairo_path_t
*cairo_path
;
955 adim
= (AdgADim
*) entity
;
958 if (!data
->geometry_arranged
) {
959 /* Entity not arranged, probably due to undefined pair found */
963 dim
= (AdgDim
*) entity
;
964 dim_style
= _ADG_GET_DIM_STYLE(dim
);
966 adg_style_apply((AdgStyle
*) dim_style
, entity
, cr
);
967 adg_entity_render((AdgEntity
*) adg_dim_get_quote(dim
), cr
);
969 if (data
->marker1
!= NULL
)
970 adg_entity_render((AdgEntity
*) data
->marker1
, cr
);
971 if (data
->marker2
!= NULL
)
972 adg_entity_render((AdgEntity
*) data
->marker2
, cr
);
974 cairo_transform(cr
, adg_entity_get_global_matrix(entity
));
975 dress
= adg_dim_style_get_line_dress(dim_style
);
976 adg_entity_apply_dress(entity
, dress
, cr
);
978 cairo_path
= adg_trail_get_cairo_path(data
->trail
);
979 cairo_append_path(cr
, cairo_path
);
984 _adg_default_value(AdgDim
*dim
)
987 AdgADimPrivate
*data
;
988 AdgDimStyle
*dim_style
;
992 adim
= (AdgADim
*) dim
;
994 dim_style
= _ADG_GET_DIM_STYLE(dim
);
995 format
= adg_dim_style_get_number_format(dim_style
);
997 if (!_adg_update_geometry(adim
))
998 return g_strdup("undef");
1000 angle
= (data
->angle2
- data
->angle1
) * 180 / G_PI
;
1001 return g_strdup_printf(format
, angle
);
1004 /* With "geometry" is considered any data (point, vector or angle)
1005 * that can be cached: this is strictly related on how the arrange()
1008 _adg_update_geometry(AdgADim
*adim
)
1010 AdgADimPrivate
*data
;
1011 AdgDimStyle
*dim_style
;
1012 gdouble from_offset
, to_offset
;
1013 gdouble spacing
, level
;
1014 CpmlVector vector
[3];
1020 if (data
->geometry_arranged
)
1022 else if (!_adg_get_info(adim
, vector
, ¢er
, &distance
))
1025 dim_style
= _ADG_GET_DIM_STYLE(adim
);
1026 from_offset
= adg_dim_style_get_from_offset(dim_style
);
1027 to_offset
= adg_dim_style_get_to_offset(dim_style
);
1028 spacing
= adg_dim_style_get_baseline_spacing(dim_style
);
1029 level
= adg_dim_get_level((AdgDim
*) adim
);
1032 cpml_vector_set_length(&vector
[0], from_offset
);
1033 cpml_pair_copy(&data
->shift
.from1
, &vector
[0]);
1036 cpml_vector_set_length(&vector
[0], level
* spacing
);
1037 cpml_pair_copy(&data
->shift
.base1
, &vector
[0]);
1040 cpml_vector_set_length(&vector
[0], to_offset
);
1041 cpml_pair_copy(&data
->shift
.to1
, &vector
[0]);
1044 cpml_vector_set_length(&vector
[2], from_offset
);
1045 cpml_pair_copy(&data
->shift
.from2
, &vector
[2]);
1048 cpml_vector_set_length(&vector
[2], level
* spacing
);
1049 cpml_pair_copy(&data
->shift
.base2
, &vector
[2]);
1052 cpml_vector_set_length(&vector
[2], to_offset
);
1053 cpml_pair_copy(&data
->shift
.to2
, &vector
[2]);
1056 cpml_vector_set_length(&vector
[1], level
* spacing
);
1057 cpml_pair_copy(&data
->shift
.base12
, &vector
[1]);
1059 /* Distance can be 0, so the following will leave the
1060 * vector array in undefined state */
1063 cpml_vector_set_length(&vector
[0], distance
);
1064 data
->point
.base1
.x
= vector
[0].x
+ center
.x
;
1065 data
->point
.base1
.y
= vector
[0].y
+ center
.y
;
1068 cpml_vector_set_length(&vector
[2], distance
);
1069 data
->point
.base2
.x
= vector
[2].x
+ center
.x
;
1070 data
->point
.base2
.y
= vector
[2].y
+ center
.y
;
1073 cpml_vector_set_length(&vector
[1], distance
);
1074 data
->point
.base12
.x
= vector
[1].x
+ center
.x
;
1075 data
->point
.base12
.y
= vector
[1].y
+ center
.y
;
1077 data
->geometry_arranged
= TRUE
;
1083 _adg_update_entities(AdgADim
*adim
)
1086 AdgADimPrivate
*data
;
1087 AdgDimStyle
*dim_style
;
1089 entity
= (AdgEntity
*) adim
;
1091 dim_style
= _ADG_GET_DIM_STYLE(adim
);
1093 if (data
->trail
== NULL
)
1094 data
->trail
= adg_trail_new(_adg_trail_callback
, adim
);
1096 if (data
->marker1
== NULL
) {
1097 data
->marker1
= adg_dim_style_marker1_new(dim_style
);
1098 adg_entity_set_parent((AdgEntity
*) data
->marker1
, entity
);
1101 if (data
->marker2
== NULL
) {
1102 data
->marker2
= adg_dim_style_marker2_new(dim_style
);
1103 adg_entity_set_parent((AdgEntity
*) data
->marker2
, entity
);
1108 _adg_unset_trail(AdgADim
*adim
)
1110 AdgADimPrivate
*data
= adim
->data
;
1112 if (data
->trail
!= NULL
)
1113 adg_model_clear((AdgModel
*) data
->trail
);
1115 data
->cpml
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
1119 _adg_dispose_trail(AdgADim
*adim
)
1121 AdgADimPrivate
*data
= adim
->data
;
1123 if (data
->trail
!= NULL
) {
1124 g_object_unref(data
->trail
);
1130 _adg_dispose_markers(AdgADim
*adim
)
1132 AdgADimPrivate
*data
= adim
->data
;
1134 if (data
->marker1
!= NULL
) {
1135 g_object_unref(data
->marker1
);
1136 data
->marker1
= NULL
;
1139 if (data
->marker2
!= NULL
) {
1140 g_object_unref(data
->marker2
);
1141 data
->marker2
= NULL
;
1146 _adg_get_info(AdgADim
*adim
, CpmlVector vector
[],
1147 AdgPair
*center
, gdouble
*distance
)
1150 AdgADimPrivate
*data
;
1151 const AdgPair
*ref1
, *ref2
, *pos
;
1152 const AdgPair
*org1
, *org2
;
1155 dim
= (AdgDim
*) adim
;
1157 ref1
= adg_point_get_pair(adg_dim_get_ref1(dim
));
1158 ref2
= adg_point_get_pair(adg_dim_get_ref2(dim
));
1159 pos
= adg_point_get_pair(adg_dim_get_pos(dim
));
1160 org1
= adg_point_get_pair(data
->org1
);
1161 org2
= adg_point_get_pair(data
->org2
);
1163 if (ref1
== NULL
|| ref2
== NULL
|| pos
== NULL
||
1164 org1
== NULL
|| org2
== NULL
)
1167 vector
[0].x
= ref1
->x
- org1
->x
;
1168 vector
[0].y
= ref1
->y
- org1
->y
;
1169 vector
[2].x
= ref2
->x
- org2
->x
;
1170 vector
[2].y
= ref2
->y
- org2
->y
;
1172 factor
= vector
[0].x
* vector
[2].y
- vector
[0].y
* vector
[2].x
;
1174 /* Parallel lines: hang with an error message */
1175 g_warning(_("%s: trying to set an angular dimension on parallel lines"),
1180 factor
= ((ref1
->y
- ref2
->y
) * vector
[2].x
-
1181 (ref1
->x
- ref2
->x
) * vector
[2].y
) / factor
;
1183 center
->x
= ref1
->x
+ vector
[0].x
* factor
;
1184 center
->y
= ref1
->y
+ vector
[0].y
* factor
;
1185 *distance
= cpml_pair_distance(center
, pos
);
1186 data
->angle1
= cpml_vector_angle(&vector
[0]);
1187 data
->angle2
= cpml_vector_angle(&vector
[2]);
1188 while (data
->angle2
< data
->angle1
)
1189 data
->angle2
+= G_PI
* 2;
1191 cpml_vector_from_angle(&vector
[1], (data
->angle1
+ data
->angle2
) / 2);
1197 _adg_trail_callback(AdgTrail
*trail
, gpointer user_data
)
1200 AdgADimPrivate
*data
;
1202 adim
= (AdgADim
*) user_data
;
1205 return &data
->cpml
.path
;