elementary: add internal Efl_Ui_Model_Exact.

This model enable View that require to compute the size of their item
to rely on its logic to store all items size independently. It has the
same interface as the Homogeneous and should be exchangeable for a View.

Reviewed-by: SangHyeon Jade Lee <sh10233.lee@samsung.com>
Differential Revision: https://phab.enlightenment.org/D7660
devs/larrylira/treeview
Cedric BAIL 4 years ago
parent 3b10089ff3
commit 4aa6285a75
  1. 2
      src/Makefile_Elementary.am
  2. 338
      src/lib/elementary/efl_ui_model_exact.c
  3. 17
      src/lib/elementary/efl_ui_model_exact.eo
  4. 1
      src/lib/elementary/elm_priv.h
  5. 4
      src/lib/elementary/meson.build

@ -178,6 +178,7 @@ elm_private_eolian_files = \
lib/elementary/efl_ui_list_view_precise_layouter.eo \
lib/elementary/efl_ui_model_size.eo \
lib/elementary/efl_ui_model_homogeneous.eo \
lib/elementary/efl_ui_model_exact.eo \
$(NULL)
# Legacy classes - not part of public EO API
@ -890,6 +891,7 @@ lib_elementary_libelementary_la_SOURCES = \
lib/elementary/efl_ui_widget_factory.c \
lib/elementary/efl_ui_model_size.c \
lib/elementary/efl_ui_model_homogeneous.c \
lib/elementary/efl_ui_model_exact.c \
$(NULL)

@ -0,0 +1,338 @@
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <Elementary.h>
#include "elm_priv.h"
// This class store the size information in a compressed array and unpack it
// when necessary. It does maintain a cache of up to 3 uncompressed slot.
// That cache could get dropped when the application is entering the 'pause'
// state.
#define EFL_UI_MODEL_EXACT_CONTENT 1024
#define EFL_UI_MODEL_EXACT_CONTENT_LENGTH (EFL_UI_MODEL_EXACT_CONTENT * sizeof (unsigned int))
// For now only vertical logic is implemented. Horizontal list and grid are not supported.
typedef struct _Efl_Ui_Model_Exact_Data Efl_Ui_Model_Exact_Data;
struct _Efl_Ui_Model_Exact_Data
{
Efl_Ui_Model_Exact_Data *parent;
struct {
Eina_List *width;
Eina_List *height;
} compressed;
struct {
unsigned int width;
unsigned int height;
} total_size;
struct {
unsigned int *width;
unsigned int *height;
unsigned int start_offset;
unsigned short usage;
Eina_Bool defined : 1;
struct {
Eina_Bool width : 1;
Eina_Bool height : 1;
} decompressed;
} slot[3];
};
static Efl_Object *
_efl_ui_model_exact_efl_object_constructor(Eo *obj, Efl_Ui_Model_Exact_Data *pd)
{
Eo *parent = efl_parent_get(obj);
if (parent && efl_isa(parent, EFL_UI_MODEL_EXACT_CLASS))
pd->parent = efl_data_scope_get(efl_parent_get(obj), EFL_UI_MODEL_EXACT_CLASS);
return efl_constructor(efl_super(obj, EFL_UI_MODEL_EXACT_CLASS));
}
static unsigned int
_efl_ui_model_exact_list_find(unsigned int list_index, Eina_List *start, Eina_List **l)
{
Eina_Binbuf *tbuf;
EINA_LIST_FOREACH(start, *l, tbuf)
{
if (list_index == 0) break;
list_index--;
}
return list_index;
}
static Eina_List *
_efl_ui_model_exact_slot_compress(unsigned int index, Eina_List *compressed, unsigned int *buffer)
{
unsigned int list_index = index / EFL_UI_MODEL_EXACT_CONTENT;
static Eina_Binbuf *z = NULL;
Eina_Binbuf *cbuf;
Eina_Binbuf *tbuf;
Eina_List *l = NULL;
_efl_ui_model_exact_list_find(list_index, compressed, &l);
tbuf = eina_binbuf_manage_new((unsigned char *) buffer, EFL_UI_MODEL_EXACT_CONTENT_LENGTH, EINA_TRUE);
cbuf = emile_compress(tbuf, EMILE_LZ4, EMILE_COMPRESSOR_FAST);
eina_binbuf_free(tbuf);
if (!tbuf || !cbuf) return compressed;
// Make sure the list has all the buffer up to the needed one filled with valid data
if (list_index)
{
// Create the compressed zero buffer once.
if (!z)
{
unsigned char *zmem;
zmem = calloc(EFL_UI_MODEL_EXACT_CONTENT, sizeof (unsigned int));
if (!zmem) return compressed;
tbuf = eina_binbuf_manage_new(zmem, EFL_UI_MODEL_EXACT_CONTENT_LENGTH, EINA_TRUE);
if (!tbuf) return compressed;
z = emile_compress(tbuf, EMILE_LZ4, EMILE_COMPRESSOR_FAST);
eina_binbuf_free(tbuf);
free(zmem);
}
// Fill the list all the way to the needed index with buffer full of zero
while (list_index) compressed = eina_list_append(compressed, z);
l = eina_list_last(compressed);
}
// Replace older buffer by newer buffer
tbuf = eina_list_data_get(l);
compressed = eina_list_prepend_relative(compressed, l, cbuf);
compressed = eina_list_remove_list(compressed, l);
if (tbuf != z) eina_binbuf_free(tbuf);
return compressed;
}
static unsigned int *
_efl_ui_model_exact_buffer_expand(unsigned int list_index, unsigned int *buffer, Eina_List *list)
{
unsigned int found;
Eina_Binbuf *tmp;
Eina_List *l = NULL;
if (!buffer) buffer = malloc(EFL_UI_MODEL_EXACT_CONTENT_LENGTH);
found = _efl_ui_model_exact_list_find(list_index, list, &l);
// Check if the data is in the list
if (!found)
{
// Not found -> everything is assumed to be zero
memset(buffer, 0, EFL_UI_MODEL_EXACT_CONTENT_LENGTH);
return buffer;
}
// Found -> expand in buffer
tmp = eina_binbuf_manage_new((unsigned char*) buffer, EFL_UI_MODEL_EXACT_CONTENT_LENGTH, EINA_TRUE);
emile_expand(eina_list_data_get(l), tmp, EMILE_LZ4);
eina_binbuf_free(tmp);
return buffer;
}
static unsigned char
_efl_ui_model_exact_slot_find(Efl_Ui_Model_Exact_Data *pd, unsigned int index,
Eina_Bool width_get, Eina_Bool height_get)
{
unsigned char lookup;
unsigned char found = EINA_C_ARRAY_LENGTH(pd->parent->slot);
for (lookup = 0; lookup < EINA_C_ARRAY_LENGTH(pd->parent->slot); lookup++)
{
// Check if the slot has valid content
if (!pd->parent->slot[lookup].defined)
continue;
if (pd->parent->slot[lookup].start_offset <= index &&
index < pd->parent->slot[lookup].start_offset + EFL_UI_MODEL_EXACT_CONTENT)
found = lookup;
// Reduce usage to find unused slot.
if (pd->parent->slot[lookup].usage > 0)
pd->parent->slot[lookup].usage--;
}
// Do we need to find a new slot?
if (found == EINA_C_ARRAY_LENGTH(pd->parent->slot))
{
found = 0;
for (lookup = 0; lookup < EINA_C_ARRAY_LENGTH(pd->parent->slot); lookup++)
{
if (!pd->parent->slot[lookup].defined)
{
// Found an empty slot, let's use that.
found = lookup;
break;
}
if (pd->parent->slot[lookup].usage < pd->parent->slot[found].usage)
found = lookup;
}
// Commit change back to the stored buffer list
if (pd->parent->slot[found].defined &&
(pd->parent->slot[found].width ||
pd->parent->slot[found].height))
{
if (pd->parent->slot[found].width &&
pd->parent->slot[found].decompressed.width)
pd->parent->compressed.width = _efl_ui_model_exact_slot_compress(index,
pd->parent->compressed.width,
pd->parent->slot[found].width);
if (pd->parent->slot[found].height &&
pd->parent->slot[found].decompressed.height)
pd->parent->compressed.height = _efl_ui_model_exact_slot_compress(index,
pd->parent->compressed.height,
pd->parent->slot[found].height);
}
pd->parent->slot[found].defined = EINA_TRUE;
pd->parent->slot[found].decompressed.width = EINA_FALSE;
pd->parent->slot[found].decompressed.height = EINA_FALSE;
pd->parent->slot[found].start_offset = index / EFL_UI_MODEL_EXACT_CONTENT;
}
// Increase usage of the returnd slot for now
pd->parent->slot[found].usage++;
// Unpack the data if requested
if (width_get && !pd->parent->slot[found].decompressed.width)
{
pd->parent->slot[found].width = _efl_ui_model_exact_buffer_expand(pd->parent->slot[found].start_offset,
pd->parent->slot[found].width,
pd->parent->compressed.width);
pd->parent->slot[found].decompressed.width = EINA_TRUE;
}
if (height_get && !pd->parent->slot[found].decompressed.height)
{
pd->parent->slot[found].height = _efl_ui_model_exact_buffer_expand(pd->parent->slot[found].start_offset,
pd->parent->slot[found].height,
pd->parent->compressed.height);
pd->parent->slot[found].decompressed.height = EINA_TRUE;
}
return found;
}
static Eina_Future *
_efl_ui_model_exact_efl_model_property_set(Eo *obj, Efl_Ui_Model_Exact_Data *pd,
const char *property, Eina_Value *value)
{
if (pd->parent)
{
if (!strcmp(property, _efl_model_property_selfw))
{
unsigned int index;
unsigned char found;
index = efl_model_composite_index_get(obj);
found = _efl_ui_model_exact_slot_find(pd, index, EINA_TRUE, EINA_FALSE);
if (!eina_value_uint_convert(value, &pd->parent->slot[found].width[index % EFL_UI_MODEL_EXACT_CONTENT]))
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_INCORRECT_VALUE);
// We succeeded so let's update the max total size width (As we only handle vertical list case at the moment)
if (pd->parent->total_size.width < pd->parent->slot[found].width[index % EFL_UI_MODEL_EXACT_CONTENT])
pd->parent->total_size.width = pd->parent->slot[found].width[index % EFL_UI_MODEL_EXACT_CONTENT];
return efl_loop_future_resolved(obj, eina_value_uint_init(pd->parent->slot[found].width[index % EFL_UI_MODEL_EXACT_CONTENT]));
}
if (!strcmp(property, _efl_model_property_selfh))
{
unsigned int old_value;
unsigned int index;
unsigned char found;
index = efl_model_composite_index_get(obj);
found = _efl_ui_model_exact_slot_find(pd, index, EINA_FALSE, EINA_TRUE);
old_value = pd->parent->slot[found].height[index % EFL_UI_MODEL_EXACT_CONTENT];
if (!eina_value_uint_convert(value, &pd->parent->slot[found].height[index % EFL_UI_MODEL_EXACT_CONTENT]))
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_INCORRECT_VALUE);
// We succeeded so let's update the total size
pd->parent->total_size.height += pd->parent->slot[found].height[index % EFL_UI_MODEL_EXACT_CONTENT] - old_value;
return efl_loop_future_resolved(obj, eina_value_uint_init(pd->parent->slot[found].height[index % EFL_UI_MODEL_EXACT_CONTENT]));
}
// The following property are calculated by the model and so READ_ONLY
if (!strcmp(property, _efl_model_property_totalh))
{
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_READ_ONLY);
}
if (!strcmp(property, _efl_model_property_totalw))
{
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_READ_ONLY);
}
}
if (!strcmp(property, _efl_model_property_itemw))
{
// The exact model can not guess a general item size if asked
// and should refuse to remember anything like that.
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_READ_ONLY);
}
if (!strcmp(property, _efl_model_property_itemh))
{
// The exact model can not guess a general item size if asked
// and should refuse to remember anything like that.
return efl_loop_future_rejected(obj, EFL_MODEL_ERROR_READ_ONLY);
}
return efl_model_property_set(efl_super(obj, EFL_UI_MODEL_EXACT_CLASS), property, value);
}
static Eina_Value *
_efl_ui_model_exact_efl_model_property_get(const Eo *obj, Efl_Ui_Model_Exact_Data *pd,
const char *property)
{
if (pd->parent)
{
if (!strcmp(property, _efl_model_property_selfw))
{
unsigned int index;
unsigned char found;
index = efl_model_composite_index_get(obj);
found = _efl_ui_model_exact_slot_find(pd, index, EINA_TRUE, EINA_FALSE);
return eina_value_uint_new(pd->parent->slot[found].width[index % EFL_UI_MODEL_EXACT_CONTENT]);
}
if (!strcmp(property, _efl_model_property_selfh))
{
unsigned int index;
unsigned char found;
index = efl_model_composite_index_get(obj);
found = _efl_ui_model_exact_slot_find(pd, index, EINA_FALSE, EINA_TRUE);
return eina_value_uint_new(pd->parent->slot[found].height[index % EFL_UI_MODEL_EXACT_CONTENT]);
}
}
if (!strcmp(property, _efl_model_property_totalh))
{
return eina_value_uint_new(pd->total_size.height);
}
if (!strcmp(property, _efl_model_property_totalw))
{
return eina_value_uint_new(pd->total_size.width);
}
if (!strcmp(property, _efl_model_property_itemw))
{
// The exact model can not guess a general item size if asked.
return eina_value_error_new(EAGAIN);
}
if (!strcmp(property, _efl_model_property_itemh))
{
// The exact model can not guess a general item size if asked.
return eina_value_error_new(EAGAIN);
}
return efl_model_property_get(efl_super(obj, EFL_UI_MODEL_EXACT_CLASS), property);
}
#include "efl_ui_model_exact.eo.c"

@ -0,0 +1,17 @@
class Efl.Ui.Model_Exact extends Efl.Ui.Model_Size
{
[[Class to be used to store object item size for List/Grid View.
This model provide "$total.width" and "$total.height" as an accumulated size of all
its children "$self.width" and "$self.height" @Efl.Model.property. This is currently
assuming a vertical list only.
This model will return an error code EAGAIN for "$item.width" and "$item.height" all
the time and the View that use this Model should continue to get this value even after
computing all the "$self.width" and "$self.height" of this object children.]]
implements {
Efl.Object.constructor;
Efl.Model.property { set; get; }
}
}

@ -71,6 +71,7 @@
# include "efl_datetime_manager.eo.h"
# include "efl_ui_model_size.eo.h"
# include "efl_ui_model_homogeneous.eo.h"
# include "efl_ui_model_exact.eo.h"
extern const char *_efl_model_property_itemw;
extern const char *_efl_model_property_itemh;

@ -339,6 +339,7 @@ priv_eo_files = [
'efl_ui_list_view_relayout.eo',
'efl_ui_model_size.eo',
'efl_ui_model_homogeneous.eo',
'efl_ui_model_exact.eo',
]
priv_eo_file_target = []
@ -908,7 +909,8 @@ elementary_src = [
'efl_ui_caching_factory.c',
'efl_ui_widget_factory.c',
'efl_ui_model_size.c',
'efl_ui_model_homogeneous.c'
'efl_ui_model_homogeneous.c',
'efl_ui_model_exact.c',
]
elementary_deps = [emile, eo, efl, edje, ethumb, ethumb_client, emotion, ecore_imf, ecore_con, eldbus, efreet, efreet_mime, efreet_trash, eio, atspi, dl, intl]

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