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paledit - add undo/redo with escape as undo 

now you can rescue yourself from badness...
This commit is contained in:
Carsten Haitzler 2021-11-01 12:49:59 +00:00
parent c3189d60e7
commit 3bfb563679
6 changed files with 427 additions and 2 deletions
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5
src/bin/tools/paledit/colsel.c
View File

@ -12,6 +12,11 @@ _spinner_to_rect(Evas_Object *win)
{
Elm_Palette_Color *col = elm_object_item_data_get(it);
Elm_Palette *pal = evas_object_data_get(win, "pal");
undoredo_op_col_change(win, col->name,
col->r, col->g, col->b, col->a,
r, g, b, a);
elm_config_palette_color_set(pal, col->name, r, g, b, a);
col->r = r;
col->g = g;
col->b = b;

19
src/bin/tools/paledit/main.c
View File

@ -19,6 +19,7 @@ pal_load(Evas_Object *win)
if (!palname) return;
Elm_Palette *pal = elm_config_palette_load(palname);
if (!pal) return;
undoredo_reset(win);
evas_object_data_set(win, "pal", pal);
palcols_fill(win);
palimg_update(evas_object_data_get(win, "pal_image"), pal);
@ -32,6 +33,19 @@ _cb_close_click(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_
evas_object_del(data);
}
static void
_cb_key_down(void *data, Evas *evas EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
{
Evas_Object *win = data;
Evas_Event_Key_Down *ev = event_info;
if (!strcmp(ev->key, "Escape"))
{
underedo_undo(win);
}
}
EAPI_MAIN int
elm_main(int argc, char **argv)
{
@ -42,6 +56,11 @@ elm_main(int argc, char **argv)
win = elm_win_util_standard_add("e_paledit", "Palette Editor");
elm_win_autodel_set(win, EINA_TRUE);
o = evas_object_rectangle_add(evas_object_evas_get(win));
if (!evas_object_key_grab(o, "Escape", 0, 0, EINA_FALSE)) printf("Can't grab...\n");
evas_object_event_callback_add(o, EVAS_CALLBACK_KEY_DOWN,
_cb_key_down, win);
fr = o = elm_frame_add(win);
elm_object_style_set(o, "pad_medium");
evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);

20
src/bin/tools/paledit/main.h
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@ -17,4 +17,24 @@ Evas_Object *colsel_add(Evas_Object *win);
void pal_load(Evas_Object *win);
void pal_save(Evas_Object *win);
void
undoredo_op_col_add(Evas_Object *win,
const char *col,
int r, int g, int b, int a);
void
undoredo_op_col_del(Evas_Object *win,
const char *col,
int r, int g, int b, int a);
void
undoredo_op_col_change(Evas_Object *win,
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);
void
undoredo_reset(Evas_Object *win);
void
underedo_undo(Evas_Object *win);
void
underedo_redo(Evas_Object *win);
#endif

3
src/bin/tools/paledit/meson.build
View File

@ -4,7 +4,8 @@ executable('enlightenment_paledit',
'colsel.c',
'palcols.c',
'palimg.c',
'palsel.c'
'palsel.c',
'undoredo.c'
],
include_directories: include_directories('.'),
dependencies : [ dep_elementary, deps ],

45
src/bin/tools/paledit/palcols.c
View File

@ -121,6 +121,7 @@ _pal_color_add(Evas_Object *win)
if (!strcmp(col->name, plain)) goto exists;
}
elm_colorselector_color_get(evas_object_data_get(win, "pal_colorsel"), &r, &g, &b, &a);
undoredo_op_col_add(win, plain, r, g, b, a);
elm_config_palette_color_set(pal, plain, r, g, b, a);
EINA_LIST_FOREACH(pal->colors, l, col)
{
@ -157,6 +158,7 @@ _pal_color_del(Evas_Object *win)
{
Elm_Palette *pal = evas_object_data_get(win, "pal");
Elm_Palette_Color *col = elm_object_item_data_get(it);
undoredo_op_col_del(win, col->name, col->r, col->g, col->b, col->a);
if (col->name) elm_config_palette_color_unset(pal, col->name);
it_sel = elm_genlist_item_next_get(it);
if (!it_sel) it_sel = elm_genlist_item_prev_get(it);
@ -490,6 +492,22 @@ _pal_hover_add(Evas_Object *win, Evas_Object *button)
// elm_theme_color_class_list_free(ccs);
}
static void
_cb_undo_click(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
Evas_Object *win = data;
underedo_undo(win);
}
static void
_cb_redo_click(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
Evas_Object *win = data;
underedo_redo(win);
}
static void
_cb_modify_click(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
@ -550,6 +568,32 @@ palcols_add(Evas_Object *win)
evas_object_show(o);
evas_object_data_set(win, "pal_image", o);
btn = o = elm_button_add(win);
evas_object_size_hint_weight_set(o, 0.0, 0.0);
evas_object_size_hint_fill_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_smart_callback_add(o, "clicked", _cb_undo_click, win);
elm_box_pack_end(bxh, o);
evas_object_show(o);
elm_object_tooltip_text_set(o, "Undo");
o = elm_icon_add(win);
elm_icon_standard_set(o, "edit-undo");
elm_object_content_set(btn, o);
evas_object_show(o);
btn = o = elm_button_add(win);
evas_object_size_hint_weight_set(o, 0.0, 0.0);
evas_object_size_hint_fill_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_smart_callback_add(o, "clicked", _cb_redo_click, win);
elm_box_pack_end(bxh, o);
evas_object_show(o);
elm_object_tooltip_text_set(o, "Redo");
o = elm_icon_add(win);
elm_icon_standard_set(o, "edit-redo");
elm_object_content_set(btn, o);
evas_object_show(o);
o = elm_genlist_add(win);
evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_fill_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
@ -559,7 +603,6 @@ palcols_add(Evas_Object *win)
elm_object_tooltip_text_set(o, "Colors listed in this palette");
btn = o = elm_button_add(win);
evas_object_size_hint_weight_set(o, 1.0, 0.0);
evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_fill_set(o, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_smart_callback_add(o, "clicked", _cb_modify_click, win);

337
src/bin/tools/paledit/undoredo.c Normal file
View File

@ -0,0 +1,337 @@
#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();
}