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#include "main.h"
typedef enum
{
ENTRY_NONE,
ENTRY_CHANGE,
ENTRY_ADD,
ENTRY_DEL
} Entry_Type;
typedef struct
{
double tim;
const char *name;
Entry_Type type;
unsigned char r, g, b, a;
unsigned char r2, g2, b2, a2;
} Entry;
static Eina_List *undo = NULL;
static Eina_List *list = NULL;
static int ignore = 0;
/*
static void
_dump(void)
{
Entry *en;
Eina_List *l;
printf("--------------------------------------------------\n");
EINA_LIST_FOREACH(list, l, en)
{
if (l == undo) printf("* ");
else printf(" ");
switch (en->type)
{
case ENTRY_NONE:
printf("UNDO: none\n");
break;
case ENTRY_CHANGE:
printf("UNDO: change %5.2f [%s] %3i %3i %3i %3i -> %3i %3i %3i %3i\n",
en->tim,
en->name,
en->r, en->g, en->b, en->a,
en->r2, en->g2, en->b2, en->a2
);
break;
case ENTRY_ADD:
printf("UNDO: add %5.2f [%s] %3i %3i %3i %3i\n",
en->tim,
en->name,
en->r, en->g, en->b, en->a
);
break;
case ENTRY_DEL:
printf("UNDO: del %5.2f [%s] %3i %3i %3i %3i\n",
en->tim,
en->name,
en->r, en->g, en->b, en->a
);
break;
default:
break;
}
}
}
*/
static void
_undo_init(void)
{
Entry *en;
if (list) return;
en = calloc(1, sizeof(Entry));
if (!en) return;
en->name = eina_stringshare_add("");
en->tim = 0.0;
en->type = ENTRY_NONE;
list = eina_list_append(list, en);
undo = list;
}
static void
_undo_remove(void)
{
Entry *en;
Eina_List *l, *ll;
if (!undo) return;
EINA_LIST_REVERSE_FOREACH_SAFE(list, l, ll, en)
{
if (l == undo) break;
if (en->type == ENTRY_NONE) break;
eina_stringshare_del(en->name);
free(en);
list = eina_list_remove_list(list, l);
}
undo = NULL;
}
static void
_undo_apply(Evas_Object *win, Entry *en)
{
Elm_Palette *pal = evas_object_data_get(win, "pal");
ignore++;
switch (en->type)
{
case ENTRY_CHANGE:
elm_config_palette_color_set(pal, en->name,
en->r2, en->g2, en->b2, en->a2);
palcols_fill(win);
// XXX: update colorsel
break;
case ENTRY_ADD:
elm_config_palette_color_unset(pal, en->name);
palcols_fill(win);
break;
case ENTRY_DEL:
elm_config_palette_color_set(pal, en->name,
en->r, en->g, en->b, en->a);
palcols_fill(win);
break;
default:
break;
}
ignore--;
}
static void
_redo_apply(Evas_Object *win, Entry *en)
{
Elm_Palette *pal = evas_object_data_get(win, "pal");
ignore++;
switch (en->type)
{
case ENTRY_CHANGE:
elm_config_palette_color_set(pal, en->name,
en->r2, en->g2, en->b2, en->a2);
palcols_fill(win);
// XXX: update colorsel
break;
case ENTRY_ADD:
elm_config_palette_color_set(pal, en->name,
en->r, en->g, en->b, en->a);
palcols_fill(win);
break;
case ENTRY_DEL:
elm_config_palette_color_unset(pal, en->name);
palcols_fill(win);
break;
default:
break;
}
ignore--;
}
void
undoredo_op_col_add(Evas_Object *win EINA_UNUSED,
const char *col,
int r, int g, int b, int a)
{
Entry *en;
double t;
if (ignore) return;
if (!col) return;
t = ecore_time_get();
_undo_remove();
en = calloc(1, sizeof(Entry));
if (!en) return;
en->name = eina_stringshare_add(col);
en->tim = t;
en->type = ENTRY_ADD;
en->r = r;
en->g = g;
en->b = b;
en->a = a;
_undo_init();
list = eina_list_append(list, en);
undo = NULL;
// _dump();
}
void
undoredo_op_col_del(Evas_Object *win EINA_UNUSED,
const char *col,
int r, int g, int b, int a)
{
Entry *en;
double t;
if (ignore) return;
if (!col) return;
t = ecore_time_get();
_undo_remove();
en = calloc(1, sizeof(Entry));
if (!en) return;
en->name = eina_stringshare_add(col);
en->tim = t;
en->type = ENTRY_DEL;
en->r = r;
en->g = g;
en->b = b;
en->a = a;
_undo_init();
list = eina_list_append(list, en);
undo = NULL;
// _dump();
}
void
undoredo_op_col_change(Evas_Object *win EINA_UNUSED,
const char *col,
int r_from, int g_from, int b_from, int a_from,
int r_to, int g_to, int b_to, int a_to)
{
Entry *en, *en_last = NULL;
Eina_List *l;
double t;
if (ignore) return;
if (!col) return;
if ((r_from == r_to) && (g_from == g_to) &&
(b_from == b_to) && (a_from == a_to)) return;
t = ecore_time_get();
_undo_remove();
l = eina_list_last(list);
if (l)
{
en = l->data;
if ((en->type == ENTRY_CHANGE) &&
(!strcmp(col, en->name)) &&
((t - en->tim) < 0.5))
{
en->tim = t;
en->r2 = r_to;
en->g2 = g_to;
en->b2 = b_to;
en->a2 = a_to;
// _dump();
return;
}
}
EINA_LIST_REVERSE_FOREACH(list, l, en)
{
if (en->type == ENTRY_CHANGE)
{
if (!strcmp(en->name, col)) en_last = en;
}
else break;
}
_undo_init();
if (!en_last)
{
en = calloc(1, sizeof(Entry));
if (!en) return;
en->name = eina_stringshare_add(col);
en->tim = t - 1.0;
en->type = ENTRY_CHANGE;
en->r = r_from;
en->g = g_from;
en->b = b_from;
en->a = a_from;
en->r2 = r_from;
en->g2 = g_from;
en->b2 = b_from;
en->a2 = a_from;
list = eina_list_append(list, en);
}
en = calloc(1, sizeof(Entry));
if (!en) return;
en->name = eina_stringshare_add(col);
en->tim = t;
en->type = ENTRY_CHANGE;
en->r = r_from;
en->g = g_from;
en->b = b_from;
en->a = a_from;
en->r2 = r_to;
en->g2 = g_to;
en->b2 = b_to;
en->a2 = a_to;
_undo_init();
list = eina_list_append(list, en);
undo = NULL;
// _dump();
}
void
undoredo_reset(Evas_Object *win EINA_UNUSED)
{
Entry *en;
EINA_LIST_FREE(list, en)
{
eina_stringshare_del(en->name);
free(en);
}
undo = NULL;
}
void
underedo_undo(Evas_Object *win)
{
Entry *en;
if (undo)
{
en = undo->data;
if (en->type == ENTRY_NONE) return;
undo = undo->prev;
}
else undo = eina_list_last(list);
if (!undo) return;
en = undo->data;
if (en->type == ENTRY_NONE) return;
_undo_apply(win, en);
// _dump();
}
void
underedo_redo(Evas_Object *win)
{
Entry *en;
if (!undo) return;
undo = undo->next;
if (!undo) return;
en = undo->data;
_redo_apply(win, en);
// _dump();
}