1 /* ADG - Automatic Drawing Generation
2 * Copyright (C) 2007-2019 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-dress.h"
50 #include "adg-textual.h"
51 #include "adg-toy-text.h"
53 #include "adg-dim-private.h"
56 #include "adg-adim-private.h"
59 #define _ADG_OLD_OBJECT_CLASS ((GObjectClass *) adg_adim_parent_class)
60 #define _ADG_OLD_ENTITY_CLASS ((AdgEntityClass *) adg_adim_parent_class)
63 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_compute_geometry (AdgDim
*dim
);
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
;
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
;
128 dim_class
->compute_geometry
= _adg_compute_geometry
;
130 param
= g_param_spec_boxed("org1",
132 P_("Where the first line comes from: this point is used toghether with \"ref1\" to align the first extension line"),
135 g_object_class_install_property(gobject_class
, PROP_ORG1
, param
);
137 param
= g_param_spec_boxed("org2",
139 P_("Where the second line comes from: this point is used toghether with \"ref2\" to align the second extension line"),
142 g_object_class_install_property(gobject_class
, PROP_ORG2
, param
);
144 param
= g_param_spec_boolean("has-extension1",
145 P_("Has First Extension Line flag"),
146 P_("Show (TRUE) or hide (FALSE) the first extension line"),
147 TRUE
, G_PARAM_READWRITE
);
148 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION1
, param
);
150 param
= g_param_spec_boolean("has-extension2",
151 P_("Has Second Extension Line flag"),
152 P_("Show (TRUE) or hide (FALSE) the second extension line"),
153 TRUE
, G_PARAM_READWRITE
);
154 g_object_class_install_property(gobject_class
, PROP_HAS_EXTENSION2
, param
);
158 adg_adim_init(AdgADim
*adim
)
160 AdgADimPrivate
*data
;
162 AdgDimStyle
*dim_style
;
163 cairo_path_data_t move_to
, line_to
, arc_to
;
165 data
= G_TYPE_INSTANCE_GET_PRIVATE(adim
, ADG_TYPE_ADIM
, AdgADimPrivate
);
166 move_to
.header
.type
= CPML_MOVE
;
167 move_to
.header
.length
= 2;
168 line_to
.header
.type
= CPML_LINE
;
169 line_to
.header
.length
= 2;
170 arc_to
.header
.type
= CPML_ARC
;
171 arc_to
.header
.length
= 3;
175 data
->has_extension1
= TRUE
;
176 data
->has_extension2
= TRUE
;
178 data
->cairo
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
179 data
->cairo
.path
.data
= data
->cairo
.data
;
180 data
->cairo
.path
.num_data
= G_N_ELEMENTS(data
->cairo
.data
);
181 data
->cairo
.path
.data
[0] = move_to
;
182 data
->cairo
.path
.data
[2] = arc_to
;
183 data
->cairo
.path
.data
[5] = move_to
;
184 data
->cairo
.path
.data
[7] = line_to
;
185 data
->cairo
.path
.data
[9] = move_to
;
186 data
->cairo
.path
.data
[11] = line_to
;
189 data
->marker1
= NULL
;
190 data
->marker2
= NULL
;
194 /* Override the default style of the dimension dress to express angles in
195 * sexagesimal units */
196 style
= adg_dress_get_fallback(ADG_DRESS_DIMENSION
);
197 dim_style
= (AdgDimStyle
*) adg_style_clone(style
);
199 adg_dim_style_set_decimals(dim_style
, 0);
200 adg_dim_style_set_rounding(dim_style
, 3);
201 adg_dim_style_set_number_arguments(dim_style
, "Dm");
202 adg_dim_style_set_number_format(dim_style
, "%g°(%g')");
204 adg_entity_set_style((AdgEntity
*) adim
,
206 (AdgStyle
*) dim_style
);
210 _adg_dispose(GObject
*object
)
214 AdgADimPrivate
*data
;
216 entity
= (AdgEntity
*) object
;
217 adim
= (AdgADim
*) entity
;
220 _adg_dispose_trail(adim
);
221 _adg_dispose_markers(adim
);
223 if (data
->org1
!= NULL
)
224 data
->org1
= adg_entity_point(entity
, data
->org1
, NULL
);
226 if (data
->org2
!= NULL
)
227 data
->org2
= adg_entity_point(entity
, data
->org2
, NULL
);
229 if (_ADG_OLD_OBJECT_CLASS
->dispose
)
230 _ADG_OLD_OBJECT_CLASS
->dispose(object
);
234 _adg_get_property(GObject
*object
, guint prop_id
,
235 GValue
*value
, GParamSpec
*pspec
)
237 AdgADimPrivate
*data
= ((AdgADim
*) object
)->data
;
241 g_value_set_boxed(value
, data
->org1
);
244 g_value_set_boxed(value
, data
->org2
);
246 case PROP_HAS_EXTENSION1
:
247 g_value_set_boolean(value
, data
->has_extension1
);
249 case PROP_HAS_EXTENSION2
:
250 g_value_set_boolean(value
, data
->has_extension2
);
253 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
259 _adg_set_property(GObject
*object
, guint prop_id
,
260 const GValue
*value
, GParamSpec
*pspec
)
263 AdgADimPrivate
*data
;
265 entity
= (AdgEntity
*) object
;
266 data
= ((AdgADim
*) object
)->data
;
270 data
->org1
= adg_entity_point(entity
, data
->org1
,
271 g_value_get_boxed(value
));
274 data
->org2
= adg_entity_point(entity
, data
->org2
,
275 g_value_get_boxed(value
));
277 case PROP_HAS_EXTENSION1
:
278 data
->has_extension1
= g_value_get_boolean(value
);
280 case PROP_HAS_EXTENSION2
:
281 data
->has_extension2
= g_value_get_boolean(value
);
284 G_OBJECT_WARN_INVALID_PROPERTY_ID(object
, prop_id
, pspec
);
293 * Creates a new - undefined - angular dimension. You must, at least,
294 * define the first line by setting #AdgADim:org1 (start point) and
295 * #AdgDim:ref1 (end point), the second line by setting #AdgADim:org2
296 * (start point) and #AdgDim:ref2 (end point) and the position of
297 * the quote in #AdgDim:pos.
299 * Returns: the newly created angular dimension entity
306 return g_object_new(ADG_TYPE_ADIM
, NULL
);
311 * @ref1: (allow-none): first reference point
312 * @ref2: (allow-none): second reference point
313 * @org1: (allow-none): first origin point
314 * @org2: (allow-none): second origin point
315 * @pos: (allow-none): the position point
317 * Creates a new angular dimension, specifing all the needed
318 * properties in one shot using #CpmlPair.
320 * Returns: the newly created angular dimension entity
325 adg_adim_new_full(const CpmlPair
*ref1
, const CpmlPair
*ref2
,
326 const CpmlPair
*org1
, const CpmlPair
*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 CpmlPair 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 <constant>NULL</constant>, in which case
452 * 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 <constant>NULL</constant>, the point will be unset. In any
514 * case, the old point is silently discarded, unreferencing its
515 * model if that point was bound to a named pair (hence, possibly
516 * destroying the model 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 <constant>NULL</constant>, in which case
569 * 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 CpmlPair
*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 <constant>NULL</constant>, the point will be unset. In any
631 * case, the old point is silently discarded, unreferencing its
632 * model if that point was bound to a named pair (hence, possibly
633 * destroying the model 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.
659 * Returns: (transfer none): the second reference point
664 adg_adim_get_org2(AdgADim
*adim
)
666 AdgADimPrivate
*data
;
668 g_return_val_if_fail(ADG_IS_ADIM(adim
), NULL
);
676 * adg_adim_switch_extension1:
677 * @adim: an #AdgADim entity
678 * @new_state: the new state
680 * Shows (if @new_state is <constant>TRUE</constant>) or hides
681 * (if @new_state is <constant>FALSE</constant>) the first
682 * extension line of @adim.
687 adg_adim_switch_extension1(AdgADim
*adim
, gboolean new_state
)
689 g_return_if_fail(ADG_IS_ADIM(adim
));
690 g_return_if_fail(adg_is_boolean_value(new_state
));
691 g_object_set(adim
, "has-extension1", new_state
, NULL
);
695 * adg_adim_has_extension1:
696 * @adim: an #AdgADim entity
698 * Checks if @adim should render the first extension line.
700 * Returns: <constant>TRUE</constant> on first extension line presents, <constant>FALSE</constant> otherwise.
705 adg_adim_has_extension1(AdgADim
*adim
)
707 AdgADimPrivate
*data
;
709 g_return_val_if_fail(ADG_IS_ADIM(adim
), FALSE
);
713 return data
->has_extension1
;
717 * adg_adim_switch_extension2:
718 * @adim: an #AdgADim entity
719 * @new_state: the new new_state
721 * Shows (if @new_state is <constant>TRUE</constant>) or hides
722 * (if @new_state is <constant>FALSE</constant>) the second
723 * 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: <constant>TRUE</constant> on first extension line presents, <constant>FALSE</constant> 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 _adg_unset_trail(adim
);
798 adg_point_invalidate(data
->org1
);
800 adg_point_invalidate(data
->org2
);
802 if (_ADG_OLD_ENTITY_CLASS
->invalidate
)
803 _ADG_OLD_ENTITY_CLASS
->invalidate(entity
);
807 _adg_arrange(AdgEntity
*entity
)
811 AdgADimPrivate
*data
;
813 const cairo_matrix_t
*global
, *local
;
814 CpmlPair ref1
, ref2
, base1
, base12
, base2
;
817 AdgEntity
*marker_entity
;
819 if (_ADG_OLD_ENTITY_CLASS
->arrange
)
820 _ADG_OLD_ENTITY_CLASS
->arrange(entity
);
822 dim
= (AdgDim
*) entity
;
823 if (! adg_dim_compute_geometry(dim
))
826 adim
= (AdgADim
*) entity
;
828 quote
= adg_dim_get_quote(dim
);
830 _adg_update_entities(adim
);
832 if (data
->cairo
.path
.status
== CAIRO_STATUS_SUCCESS
) {
833 AdgEntity
*quote_entity
= (AdgEntity
*) quote
;
834 adg_entity_set_global_map(quote_entity
, &data
->quote
.global_map
);
838 global
= adg_entity_get_global_matrix(entity
);
839 local
= adg_entity_get_local_matrix(entity
);
840 extents
.is_defined
= FALSE
;
842 cpml_pair_copy(&ref1
, (CpmlPair
*) adg_dim_get_ref1(dim
));
843 cpml_pair_copy(&ref2
, (CpmlPair
*) adg_dim_get_ref2(dim
));
844 cpml_pair_copy(&base1
, &data
->point
.base1
);
845 cpml_pair_copy(&base12
, &data
->point
.base12
);
846 cpml_pair_copy(&base2
, &data
->point
.base2
);
848 /* Apply the local matrix to the relevant points */
849 cpml_pair_transform(&ref1
, local
);
850 cpml_pair_transform(&ref2
, local
);
851 cpml_pair_transform(&base1
, local
);
852 cpml_pair_transform(&base12
, local
);
853 cpml_pair_transform(&base2
, local
);
855 /* Combine points and global shifts to build the path */
856 pair
.x
= ref1
.x
+ data
->shift
.from1
.x
;
857 pair
.y
= ref1
.y
+ data
->shift
.from1
.y
;
858 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[6]);
860 pair
.x
= base1
.x
+ data
->shift
.base1
.x
;
861 pair
.y
= base1
.y
+ data
->shift
.base1
.y
;
862 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[1]);
864 pair
.x
+= data
->shift
.to1
.x
;
865 pair
.y
+= data
->shift
.to1
.y
;
866 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[8]);
868 pair
.x
= base12
.x
+ data
->shift
.base12
.x
;
869 pair
.y
= base12
.y
+ data
->shift
.base12
.y
;
870 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[3]);
872 pair
.x
= ref2
.x
+ data
->shift
.from2
.x
;
873 pair
.y
= ref2
.y
+ data
->shift
.from2
.y
;
874 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[10]);
876 pair
.x
= base2
.x
+ data
->shift
.base2
.x
;
877 pair
.y
= base2
.y
+ data
->shift
.base2
.y
;
878 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[4]);
880 pair
.x
+= data
->shift
.to2
.x
;
881 pair
.y
+= data
->shift
.to2
.y
;
882 cpml_pair_to_cairo(&pair
, &data
->cairo
.data
[12]);
884 /* Play with header lengths to show or hide the extension lines */
885 if (data
->has_extension1
) {
886 data
->cairo
.data
[7].header
.length
= data
->has_extension2
? 2 : 6;
888 data
->cairo
.data
[2].header
.length
= data
->has_extension2
? 7 : 11;
891 data
->cairo
.path
.status
= CAIRO_STATUS_SUCCESS
;
893 /* Arrange the quote */
895 AdgEntity
*quote_entity
;
899 quote_entity
= (AdgEntity
*) quote
;
900 angle
= adg_dim_quote_angle(dim
, (data
->angle1
+ data
->angle2
) / 2 + G_PI_2
);
901 cpml_pair_from_cairo(&pair
, &data
->cairo
.data
[3]);
903 adg_alignment_set_factor_explicit(quote
, 0.5, 0);
905 cairo_matrix_init_translate(&map
, pair
.x
, pair
.y
);
906 cairo_matrix_rotate(&map
, angle
);
907 adg_entity_set_global_map(quote_entity
, &map
);
908 adg_entity_arrange(quote_entity
);
909 cpml_extents_add(&extents
, adg_entity_get_extents(quote_entity
));
911 adg_matrix_copy(&data
->quote
.global_map
, &map
);
914 /* Arrange the trail */
915 if (data
->trail
!= NULL
) {
916 CpmlExtents trail_extents
;
917 cpml_extents_copy(&trail_extents
, adg_trail_get_extents(data
->trail
));
918 cpml_extents_transform(&trail_extents
, global
);
919 cpml_extents_add(&extents
, &trail_extents
);
921 _adg_dispose_markers(adim
);
924 /* Arrange the markers */
925 if (data
->marker1
!= NULL
) {
926 marker_entity
= (AdgEntity
*) data
->marker1
;
927 adg_marker_set_segment(data
->marker1
, data
->trail
, 1);
928 adg_entity_local_changed(marker_entity
);
929 adg_entity_arrange(marker_entity
);
930 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
932 if (data
->marker2
!= NULL
) {
933 marker_entity
= (AdgEntity
*) data
->marker2
;
934 adg_marker_set_segment(data
->marker2
, data
->trail
, 1);
935 adg_entity_local_changed(marker_entity
);
936 adg_entity_arrange(marker_entity
);
937 cpml_extents_add(&extents
, adg_entity_get_extents(marker_entity
));
940 adg_entity_set_extents(entity
, &extents
);
944 _adg_render(AdgEntity
*entity
, cairo_t
*cr
)
948 AdgADimPrivate
*data
;
949 AdgDimStyle
*dim_style
;
951 const cairo_path_t
*cairo_path
;
953 dim
= (AdgDim
*) entity
;
954 if (! adg_dim_compute_geometry(dim
)) {
955 /* Entity not arranged, probably due to undefined pair found */
959 adim
= (AdgADim
*) entity
;
961 dim_style
= adg_dim_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
;
987 if (! adg_dim_compute_geometry(dim
)) {
988 return g_strdup("undef");
991 adim
= (AdgADim
*) dim
;
993 angle
= (data
->angle2
- data
->angle1
) * 180 / G_PI
;
995 return adg_dim_get_text(dim
, angle
);
998 /* With "geometry" is considered any data (point, vector or angle)
999 * that can be cached: this is strictly related on how the arrange()
1002 _adg_compute_geometry(AdgDim
*dim
)
1005 AdgADimPrivate
*data
;
1006 AdgDimStyle
*dim_style
;
1007 gdouble from_offset
, to_offset
;
1008 gdouble spacing
, level
;
1009 CpmlVector vector
[3];
1013 adim
= (AdgADim
*) dim
;
1014 if (! _adg_get_info(adim
, vector
, ¢er
, &distance
))
1018 dim_style
= adg_dim_get_dim_style(dim
);
1019 from_offset
= adg_dim_style_get_from_offset(dim_style
);
1020 to_offset
= adg_dim_style_get_to_offset(dim_style
);
1021 spacing
= adg_dim_style_get_baseline_spacing(dim_style
);
1022 level
= adg_dim_get_level((AdgDim
*) adim
);
1025 cpml_vector_set_length(&vector
[0], from_offset
);
1026 cpml_pair_copy(&data
->shift
.from1
, &vector
[0]);
1029 cpml_vector_set_length(&vector
[0], level
* spacing
);
1030 cpml_pair_copy(&data
->shift
.base1
, &vector
[0]);
1033 cpml_vector_set_length(&vector
[0], to_offset
);
1034 cpml_pair_copy(&data
->shift
.to1
, &vector
[0]);
1037 cpml_vector_set_length(&vector
[2], from_offset
);
1038 cpml_pair_copy(&data
->shift
.from2
, &vector
[2]);
1041 cpml_vector_set_length(&vector
[2], level
* spacing
);
1042 cpml_pair_copy(&data
->shift
.base2
, &vector
[2]);
1045 cpml_vector_set_length(&vector
[2], to_offset
);
1046 cpml_pair_copy(&data
->shift
.to2
, &vector
[2]);
1049 cpml_vector_set_length(&vector
[1], level
* spacing
);
1050 cpml_pair_copy(&data
->shift
.base12
, &vector
[1]);
1052 /* Distance can be 0, so the following will leave the
1053 * vector array in undefined state */
1056 cpml_vector_set_length(&vector
[0], distance
);
1057 data
->point
.base1
.x
= vector
[0].x
+ center
.x
;
1058 data
->point
.base1
.y
= vector
[0].y
+ center
.y
;
1061 cpml_vector_set_length(&vector
[2], distance
);
1062 data
->point
.base2
.x
= vector
[2].x
+ center
.x
;
1063 data
->point
.base2
.y
= vector
[2].y
+ center
.y
;
1066 cpml_vector_set_length(&vector
[1], distance
);
1067 data
->point
.base12
.x
= vector
[1].x
+ center
.x
;
1068 data
->point
.base12
.y
= vector
[1].y
+ center
.y
;
1074 _adg_update_entities(AdgADim
*adim
)
1077 AdgADimPrivate
*data
;
1078 AdgDimStyle
*dim_style
;
1080 entity
= (AdgEntity
*) adim
;
1082 dim_style
= adg_dim_get_dim_style((AdgDim
*) adim
);
1084 if (data
->trail
== NULL
)
1085 data
->trail
= adg_trail_new(_adg_trail_callback
, adim
);
1087 if (data
->marker1
== NULL
) {
1088 data
->marker1
= adg_dim_style_marker1_new(dim_style
);
1089 adg_entity_set_parent((AdgEntity
*) data
->marker1
, entity
);
1092 if (data
->marker2
== NULL
) {
1093 data
->marker2
= adg_dim_style_marker2_new(dim_style
);
1094 adg_entity_set_parent((AdgEntity
*) data
->marker2
, entity
);
1099 _adg_unset_trail(AdgADim
*adim
)
1101 AdgADimPrivate
*data
= adim
->data
;
1103 if (data
->trail
!= NULL
)
1104 adg_model_clear((AdgModel
*) data
->trail
);
1106 data
->cairo
.path
.status
= CAIRO_STATUS_INVALID_PATH_DATA
;
1110 _adg_dispose_trail(AdgADim
*adim
)
1112 AdgADimPrivate
*data
= adim
->data
;
1114 if (data
->trail
!= NULL
) {
1115 g_object_unref(data
->trail
);
1121 _adg_dispose_markers(AdgADim
*adim
)
1123 AdgADimPrivate
*data
= adim
->data
;
1125 if (data
->marker1
!= NULL
) {
1126 g_object_unref(data
->marker1
);
1127 data
->marker1
= NULL
;
1130 if (data
->marker2
!= NULL
) {
1131 g_object_unref(data
->marker2
);
1132 data
->marker2
= NULL
;
1137 _adg_get_info(AdgADim
*adim
, CpmlVector vector
[],
1138 CpmlPair
*center
, gdouble
*distance
)
1141 AdgADimPrivate
*data
;
1142 AdgPoint
*ref1_point
, *ref2_point
, *pos_point
;
1143 const CpmlPair
*ref1
, *ref2
, *pos
;
1144 const CpmlPair
*org1
, *org2
;
1147 dim
= (AdgDim
*) adim
;
1149 ref1_point
= adg_dim_get_ref1(dim
);
1150 ref2_point
= adg_dim_get_ref2(dim
);
1151 pos_point
= adg_dim_get_pos(dim
);
1153 if (! adg_point_update(ref1_point
)) {
1154 adg_dim_geometry_missing(dim
, "ref1");
1158 if (! adg_point_update(ref2_point
)) {
1159 adg_dim_geometry_missing(dim
, "ref2");
1163 if (! adg_point_update(pos_point
)) {
1164 adg_dim_geometry_missing(dim
, "pos");
1168 if (! adg_point_update(data
->org1
)) {
1169 adg_dim_geometry_missing(dim
, "org1");
1173 if (! adg_point_update(data
->org2
)) {
1174 adg_dim_geometry_missing(dim
, "org2");
1178 ref1
= (CpmlPair
*) ref1_point
;
1179 ref2
= (CpmlPair
*) ref2_point
;
1180 pos
= (CpmlPair
*) pos_point
;
1181 org1
= (CpmlPair
*) data
->org1
;
1182 org2
= (CpmlPair
*) data
->org2
;
1184 /* Check if the given points have valid coordinates */
1185 if (cpml_pair_equal(ref1
, org1
)) {
1186 adg_dim_geometry_coincident(dim
, "ref1", "org1", ref1
);
1190 if (cpml_pair_equal(ref2
, org2
)) {
1191 adg_dim_geometry_coincident(dim
, "ref2", "org2", ref2
);
1195 vector
[0].x
= ref1
->x
- org1
->x
;
1196 vector
[0].y
= ref1
->y
- org1
->y
;
1197 vector
[2].x
= ref2
->x
- org2
->x
;
1198 vector
[2].y
= ref2
->y
- org2
->y
;
1200 factor
= vector
[0].x
* vector
[2].y
- vector
[0].y
* vector
[2].x
;
1202 adg_dim_set_geometry_notice(dim
, _("Trying to set an angular dimension on parallel lines"));
1206 factor
= ((ref1
->y
- ref2
->y
) * vector
[2].x
-
1207 (ref1
->x
- ref2
->x
) * vector
[2].y
) / factor
;
1209 center
->x
= ref1
->x
+ vector
[0].x
* factor
;
1210 center
->y
= ref1
->y
+ vector
[0].y
* factor
;
1211 *distance
= cpml_pair_distance(center
, pos
);
1212 data
->angle1
= cpml_vector_angle(&vector
[0]);
1213 data
->angle2
= cpml_vector_angle(&vector
[2]);
1214 while (data
->angle2
< data
->angle1
)
1215 data
->angle2
+= G_PI
* 2;
1217 cpml_vector_from_angle(&vector
[1], (data
->angle1
+ data
->angle2
) / 2);
1222 static cairo_path_t
*
1223 _adg_trail_callback(AdgTrail
*trail
, gpointer user_data
)
1226 AdgADimPrivate
*data
;
1228 adim
= (AdgADim
*) user_data
;
1231 return &data
->cairo
.path
;