summaryrefslogtreecommitdiff
path: root/src/lib/elm_box_legacy.h
blob: 5dfb2e68a09d48d33ef0426e65ac9f482f2aa0e0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
/**
 * Add a new box to the parent
 *
 * By default, the box will be in vertical mode and non-homogeneous.
 *
 * @param parent The parent object
 * @return The new object or NULL if it cannot be created
 *
 * @ingroup Box
 */
EAPI Evas_Object        *elm_box_add(Evas_Object *parent);

/**
 * Set the horizontal orientation
 *
 * By default, box object arranges their contents vertically from top to
 * bottom.
 * By calling this function with @p horizontal as EINA_TRUE, the box will
 * become horizontal, arranging contents from left to right.
 *
 * @note This flag is ignored if a custom layout function is set.
 *
 * @param obj The box object
 * @param horizontal The horizontal flag (EINA_TRUE = horizontal,
 * EINA_FALSE = vertical)
 *
 * @ingroup Box
 */
EAPI void                elm_box_horizontal_set(Evas_Object *obj, Eina_Bool horizontal);

/**
 * Get the horizontal orientation
 *
 * @param obj The box object
 * @return EINA_TRUE if the box is set to horizontal mode, EINA_FALSE otherwise
 */
EAPI Eina_Bool           elm_box_horizontal_get(const Evas_Object *obj);

/**
 * Set the box to arrange its children homogeneously
 *
 * If enabled, homogeneous layout makes all items the same size, according
 * to the size of the largest of its children.
 *
 * @note This flag is ignored if a custom layout function is set.
 *
 * @param obj The box object
 * @param homogeneous The homogeneous flag
 *
 * @ingroup Box
 */
EAPI void                elm_box_homogeneous_set(Evas_Object *obj, Eina_Bool homogeneous);

/**
 * Get whether the box is using homogeneous mode or not
 *
 * @param obj The box object
 * @return EINA_TRUE if it's homogeneous, EINA_FALSE otherwise
 *
 * @ingroup Box
 */
EAPI Eina_Bool           elm_box_homogeneous_get(const Evas_Object *obj);

/**
 * Add an object to the beginning of the pack list
 *
 * Pack @p subobj into the box @p obj, placing it first in the list of
 * children objects. The actual position the object will get on screen
 * depends on the layout used. If no custom layout is set, it will be at
 * the top or left, depending if the box is vertical or horizontal,
 * respectively.
 *
 * @param obj The box object
 * @param subobj The object to add to the box
 *
 * @see elm_box_pack_end()
 * @see elm_box_pack_before()
 * @see elm_box_pack_after()
 * @see elm_box_unpack()
 * @see elm_box_unpack_all()
 * @see elm_box_clear()
 *
 * @ingroup Box
 */
EAPI void                elm_box_pack_start(Evas_Object *obj, Evas_Object *subobj);

/**
 * Add an object at the end of the pack list
 *
 * Pack @p subobj into the box @p obj, placing it last in the list of
 * children objects. The actual position the object will get on screen
 * depends on the layout used. If no custom layout is set, it will be at
 * the bottom or right, depending if the box is vertical or horizontal,
 * respectively.
 *
 * @param obj The box object
 * @param subobj The object to add to the box
 *
 * @see elm_box_pack_start()
 * @see elm_box_pack_before()
 * @see elm_box_pack_after()
 * @see elm_box_unpack()
 * @see elm_box_unpack_all()
 * @see elm_box_clear()
 *
 * @ingroup Box
 */
EAPI void                elm_box_pack_end(Evas_Object *obj, Evas_Object *subobj);

/**
 * Adds an object to the box before the indicated object
 *
 * This will add the @p subobj to the box indicated before the object
 * indicated with @p before. If @p before is not already in the box, results
 * are undefined. Before means either to the left of the indicated object or
 * above it depending on orientation.
 *
 * @param obj The box object
 * @param subobj The object to add to the box
 * @param before The object before which to add it
 *
 * @see elm_box_pack_start()
 * @see elm_box_pack_end()
 * @see elm_box_pack_after()
 * @see elm_box_unpack()
 * @see elm_box_unpack_all()
 * @see elm_box_clear()
 *
 * @ingroup Box
 */
EAPI void                elm_box_pack_before(Evas_Object *obj, Evas_Object *subobj, Evas_Object *before);

/**
 * Adds an object to the box after the indicated object
 *
 * This will add the @p subobj to the box indicated after the object
 * indicated with @p after. If @p after is not already in the box, results
 * are undefined. After means either to the right of the indicated object or
 * below it depending on orientation.
 *
 * @param obj The box object
 * @param subobj The object to add to the box
 * @param after The object after which to add it
 *
 * @see elm_box_pack_start()
 * @see elm_box_pack_end()
 * @see elm_box_pack_before()
 * @see elm_box_unpack()
 * @see elm_box_unpack_all()
 * @see elm_box_clear()
 *
 * @ingroup Box
 */
EAPI void                elm_box_pack_after(Evas_Object *obj, Evas_Object *subobj, Evas_Object *after);

/**
 * Clear the box of all children
 *
 * Remove all the elements contained by the box, deleting the respective
 * objects.
 *
 * @param obj The box object
 *
 * @see elm_box_unpack()
 * @see elm_box_unpack_all()
 *
 * @ingroup Box
 */
EAPI void                elm_box_clear(Evas_Object *obj);

/**
 * Unpack a box item
 *
 * Remove the object given by @p subobj from the box @p obj without
 * deleting it.
 *
 * @param obj The box object
 * @param subobj The object to unpack
 *
 * @see elm_box_unpack_all()
 * @see elm_box_clear()
 *
 * @ingroup Box
 */
EAPI void                elm_box_unpack(Evas_Object *obj, Evas_Object *subobj);

/**
 * Remove all items from the box, without deleting them
 *
 * Clear the box from all children, but don't delete the respective objects.
 * If no other references of the box children exist, the objects will never
 * be deleted, and thus the application will leak the memory. Make sure
 * when using this function that you hold a reference to all the objects
 * in the box @p obj.
 *
 * @param obj The box object
 *
 * @see elm_box_clear()
 * @see elm_box_unpack()
 *
 * @ingroup Box
 */
EAPI void                elm_box_unpack_all(Evas_Object *obj);

/**
 * Set the layout defining function to be used by the box
 *
 * Whenever anything changes that requires the box in @p obj to recalculate
 * the size and position of its elements, the function @p cb will be called
 * to determine what the layout of the children will be.
 *
 * Once a custom function is set, everything about the children layout
 * is defined by it. The flags set by elm_box_horizontal_set() and
 * elm_box_homogeneous_set() no longer have any meaning, and the values
 * given by elm_box_padding_set() and elm_box_align_set() are up to this
 * layout function to decide if they are used and how. These last two
 * will be found in the @c priv parameter, of type @c Evas_Object_Box_Data,
 * passed to @p cb. The @c Evas_Object the function receives is not the
 * Elementary widget, but the internal Evas Box it uses, so none of the
 * functions described here can be used on it.
 *
 * Any of the layout functions in @c Evas can be used here, as well as the
 * special elm_box_layout_transition().
 *
 * The final @p data argument received by @p cb is the same @p data passed
 * here, and the @p free_data function will be called to free it
 * whenever the box is destroyed or another layout function is set.
 *
 * Setting @p cb to NULL will revert back to the default layout function.
 *
 * @param obj The box object
 * @param cb The callback function used for layout
 * @param data Data that will be passed to layout function
 * @param free_data Function called to free @p data
 *
 * @see elm_box_layout_transition()
 *
 * @ingroup Box
 */
EAPI void                elm_box_layout_set(Evas_Object *obj, Evas_Object_Box_Layout cb, const void *data, Ecore_Cb free_data);

/**
 * Retrieve a list of the objects packed into the box
 *
 * Returns a new @c Eina_List with a pointer to @c Evas_Object in its nodes.
 * The order of the list corresponds to the packing order the box uses.
 *
 * You must free this list with eina_list_free() once you are done with it.
 *
 * @param obj The box object
 *
 * @ingroup Box
 */
EAPI Eina_List    *elm_box_children_get(const Evas_Object *obj);

/**
 * Set the space (padding) between the box's elements.
 *
 * Extra space in pixels that will be added between a box child and its
 * neighbors after its containing cell has been calculated. This padding
 * is set for all elements in the box, besides any possible padding that
 * individual elements may have through their size hints.
 *
 * @param obj The box object
 * @param horizontal The horizontal space between elements
 * @param vertical The vertical space between elements
 *
 * @ingroup Box
 */
EAPI void                elm_box_padding_set(Evas_Object *obj, Evas_Coord horizontal, Evas_Coord vertical);

/**
 * Get the space (padding) between the box's elements.
 *
 * @param obj The box object
 * @param horizontal The horizontal space between elements
 * @param vertical The vertical space between elements
 *
 * @see elm_box_padding_set()
 *
 * @ingroup Box
 */
EAPI void                elm_box_padding_get(const Evas_Object *obj, Evas_Coord *horizontal, Evas_Coord *vertical);

/**
 * Set the alignment of the whole bounding box of contents.
 *
 * Sets how the bounding box containing all the elements of the box, after
 * their sizes and position has been calculated, will be aligned within
 * the space given for the whole box widget.
 *
 * @param obj The box object
 * @param horizontal The horizontal alignment of elements
 * @param vertical The vertical alignment of elements
 *
 * @ingroup Box
 */
EAPI void                elm_box_align_set(Evas_Object *obj, double horizontal, double vertical);

/**
 * Get the alignment of the whole bounding box of contents.
 *
 * @param obj The box object
 * @param horizontal The horizontal alignment of elements
 * @param vertical The vertical alignment of elements
 *
 * @see elm_box_align_set()
 *
 * @ingroup Box
 */
EAPI void                elm_box_align_get(const Evas_Object *obj, double *horizontal, double *vertical);

/**
 * Force the box to recalculate its children packing.
 *
 * If any children was added or removed, box will not calculate the
 * values immediately rather leaving it to the next main loop
 * iteration. While this is great as it would save lots of
 * recalculation, whenever you need to get the position of a just
 * added item you must force recalculate before doing so.
 *
 * @param obj The box object.
 *
 * @ingroup Box
 */
EAPI void                elm_box_recalculate(Evas_Object *obj);