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-rw-r--r--libraries/evas/src/lib/canvas/evas_layer.c193
1 files changed, 193 insertions, 0 deletions
diff --git a/libraries/evas/src/lib/canvas/evas_layer.c b/libraries/evas/src/lib/canvas/evas_layer.c
new file mode 100644
index 0000000..54e9907
--- /dev/null
+++ b/libraries/evas/src/lib/canvas/evas_layer.c
@@ -0,0 +1,193 @@
1#include "evas_common.h"
2#include "evas_private.h"
3
4static void _evas_layer_free(Evas_Layer *lay);
5
6void
7evas_object_inject(Evas_Object *obj, Evas *e)
8{
9 Evas_Layer *lay;
10
11 if (obj->in_layer) return;
12 lay = evas_layer_find(e, obj->cur.layer);
13 if (!lay)
14 {
15 lay = evas_layer_new(e);
16 lay->layer = obj->cur.layer;
17 evas_layer_add(lay);
18 }
19 lay->objects = (Evas_Object *)eina_inlist_append(EINA_INLIST_GET(lay->objects), EINA_INLIST_GET(obj));
20 lay->usage++;
21 obj->layer = lay;
22 obj->in_layer = 1;
23}
24
25void
26evas_object_release(Evas_Object *obj, int clean_layer)
27{
28 if (!obj->in_layer) return;
29 obj->layer->objects = (Evas_Object *)eina_inlist_remove(EINA_INLIST_GET(obj->layer->objects), EINA_INLIST_GET(obj));
30 obj->layer->usage--;
31 if (clean_layer)
32 {
33 if (obj->layer->usage <= 0)
34 {
35 evas_layer_del(obj->layer);
36 _evas_layer_free(obj->layer);
37 }
38 }
39 obj->layer = NULL;
40 obj->in_layer = 0;
41}
42
43Evas_Layer *
44evas_layer_new(Evas *e)
45{
46 Evas_Layer *lay;
47
48 lay = calloc(1, sizeof(Evas_Layer));
49 if (!lay) return NULL;
50 lay->evas = e;
51 return lay;
52}
53
54static void
55_evas_layer_free(Evas_Layer *lay)
56{
57 free(lay);
58}
59
60void
61evas_layer_pre_free(Evas_Layer *lay)
62{
63 Evas_Object *obj;
64
65 EINA_INLIST_FOREACH(lay->objects, obj)
66 {
67 if ((!obj->smart.parent) && (!obj->delete_me))
68 evas_object_del(obj);
69 }
70}
71
72void
73evas_layer_free_objects(Evas_Layer *lay)
74{
75 while (lay->objects)
76 {
77 Evas_Object *obj;
78
79 obj = (Evas_Object *)lay->objects;
80 evas_object_free(obj, 0);
81 }
82}
83
84void
85evas_layer_clean(Evas *e)
86{
87 Evas_Layer *tmp;
88
89 while (e->layers)
90 {
91 tmp = e->layers;
92 evas_layer_del(tmp);
93 _evas_layer_free(tmp);
94 }
95}
96
97Evas_Layer *
98evas_layer_find(Evas *e, short layer_num)
99{
100 Evas_Layer *layer;
101
102 EINA_INLIST_FOREACH(e->layers, layer)
103 {
104 if (layer->layer == layer_num) return layer;
105 }
106 return NULL;
107}
108
109void
110evas_layer_add(Evas_Layer *lay)
111{
112 Evas_Layer *layer;
113
114 EINA_INLIST_FOREACH(lay->evas->layers, layer)
115 {
116 if (layer->layer > lay->layer)
117 {
118 lay->evas->layers = (Evas_Layer *)eina_inlist_prepend_relative(EINA_INLIST_GET(lay->evas->layers),
119 EINA_INLIST_GET(lay),
120 EINA_INLIST_GET(layer));
121 return;
122 }
123 }
124 lay->evas->layers = (Evas_Layer *)eina_inlist_append(EINA_INLIST_GET(lay->evas->layers), EINA_INLIST_GET(lay));
125}
126
127void
128evas_layer_del(Evas_Layer *lay)
129{
130 Evas *e;
131
132 e = lay->evas;
133 e->layers = (Evas_Layer *)eina_inlist_remove(EINA_INLIST_GET(e->layers), EINA_INLIST_GET(lay));
134}
135
136/* public functions */
137
138EAPI void
139evas_object_layer_set(Evas_Object *obj, short l)
140{
141 Evas *e;
142
143 MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
144 return;
145 MAGIC_CHECK_END();
146 if (obj->delete_me) return;
147 if (evas_object_intercept_call_layer_set(obj, l)) return;
148 if (obj->smart.parent) return;
149 if (obj->cur.layer == l)
150 {
151 evas_object_raise(obj);
152 return;
153 }
154 e = obj->layer->evas;
155 evas_object_release(obj, 1);
156 obj->cur.layer = l;
157 evas_object_inject(obj, e);
158 obj->restack = 1;
159 evas_object_change(obj);
160 if (obj->clip.clipees)
161 {
162 evas_object_inform_call_restack(obj);
163 return;
164 }
165 evas_object_change(obj);
166 if (!obj->smart.smart)
167 {
168 if (evas_object_is_in_output_rect(obj,
169 obj->layer->evas->pointer.x,
170 obj->layer->evas->pointer.y, 1, 1) &&
171 obj->cur.visible)
172 if (eina_list_data_find(obj->layer->evas->pointer.object.in, obj))
173 evas_event_feed_mouse_move(obj->layer->evas,
174 obj->layer->evas->pointer.x,
175 obj->layer->evas->pointer.y,
176 obj->layer->evas->last_timestamp,
177 NULL);
178 }
179 evas_object_inform_call_restack(obj);
180}
181
182EAPI short
183evas_object_layer_get(const Evas_Object *obj)
184{
185 MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
186 return 0;
187 MAGIC_CHECK_END();
188 if (obj->smart.parent)
189 {
190 return obj->smart.parent->cur.layer;
191 }
192 return obj->cur.layer;
193}