Ephoto: Add scaler

master
Stephen Houston 6 years ago
parent 43b179f0aa
commit 85c16161f5
  1. 267
      src/bin/ephoto_scale.c

@ -0,0 +1,267 @@
#include "ephoto.h"
typedef struct _Ephoto_Scale Ephoto_Scale;
struct _Ephoto_Scale
{
Evas_Object *main;
Evas_Object *parent;
Evas_Object *image;
Evas_Object *editor;
Evas_Object *scalew;
Evas_Object *scaleh;
Evas_Object *aspect;
Eina_Stringshare *tmp_file;
Eina_List *handlers;
double aspectw;
double aspecth;
Evas_Coord w, h;
unsigned int *original_im_data;
};
static void _scale_width_changed(void *data, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED);
static void
_scale_height_changed(void *data, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
double nw;
if (!elm_check_state_get(es->aspect))
return;
evas_object_smart_callback_del(es->scalew, "changed",
_scale_width_changed);
nw = round(es->aspectw * elm_spinner_value_get(es->scaleh));
if (nw <= 1)
{
double nh;
evas_object_smart_callback_del(es->scaleh, "changed",
_scale_height_changed);
nh = round(es->aspecth * 1);
elm_spinner_value_set(es->scaleh, nh);
evas_object_smart_callback_add(es->scaleh, "changed",
_scale_height_changed, es);
nw = 1;
}
elm_spinner_value_set(es->scalew, nw);
evas_object_smart_callback_add(es->scalew, "changed",
_scale_width_changed, es);
}
static void
_scale_width_changed(void *data, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
double nh;
if (!elm_check_state_get(es->aspect))
return;
evas_object_smart_callback_del(es->scaleh, "changed",
_scale_height_changed);
nh = round(es->aspecth * elm_spinner_value_get(es->scalew));
if (nh <= 1)
{
double nw;
evas_object_smart_callback_del(es->scalew, "changed",
_scale_width_changed);
nw = round(es->aspectw * 1);
elm_spinner_value_set(es->scalew, nw);
evas_object_smart_callback_add(es->scalew, "changed",
_scale_width_changed, es);
nh = 1;
}
elm_spinner_value_set(es->scaleh, nh);
evas_object_smart_callback_add(es->scaleh, "changed",
_scale_height_changed, es);
}
static Eina_Bool
_es_reset(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
elm_spinner_value_set(es->scalew, es->w);
elm_spinner_value_set(es->scaleh, es->h);
es->aspectw = (double)es->w / (double)es->h;
es->aspecth = (double)es->h / (double)es->w;
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_es_apply(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
const unsigned int *image_data;
unsigned int *im_data;
const char *key;
Evas_Object *im;
int w, h, alpha;
Ecore_Evas *ee;
Evas *eecanvas;
w = round(elm_spinner_value_get(es->scalew));
h = round(elm_spinner_value_get(es->scaleh));
evas_object_image_file_get(elm_image_object_get(es->image),
NULL, &key);
ee = ecore_evas_buffer_new(1, 1);
eecanvas = ecore_evas_get(ee);
evas_image_cache_set(eecanvas, 0);
evas_font_cache_set(eecanvas, 0);
alpha = 1;
im = evas_object_image_add(eecanvas);
evas_object_image_load_size_set(im, w, h);
evas_object_image_load_orientation_set(im, EINA_TRUE);
evas_object_image_file_set(im, es->tmp_file, key);
alpha = evas_object_image_alpha_get(im);
evas_object_image_fill_set(im, 0, 0, w, h);
evas_object_move(im, 0, 0);
evas_object_resize(im, w, h);
ecore_evas_alpha_set(ee, alpha);
ecore_evas_resize(ee, w, h);
evas_object_show(im);
image_data = ecore_evas_buffer_pixels_get(ee);
im_data = malloc(sizeof(unsigned int) * w * h);
memcpy(im_data, image_data, sizeof(unsigned int) * w * h);
ephoto_single_browser_image_data_done(es->main, im_data, w, h);
ephoto_editor_del(es->editor);
evas_object_del(im);
ecore_evas_free(ee);
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_es_cancel(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
ephoto_single_browser_cancel_editing(es->main);
ephoto_editor_del(es->editor);
return ECORE_CALLBACK_PASS_ON;
}
static void
_editor_del(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Scale *es = data;
Ecore_Event_Handler *handler;
EINA_LIST_FREE(es->handlers, handler)
ecore_event_handler_del(handler);
ecore_file_unlink(es->tmp_file);
eina_stringshare_del(es->tmp_file);
free(es->original_im_data);
free(es);
}
void
ephoto_scale_add(Ephoto *ephoto, Evas_Object *main, Evas_Object *parent,
Evas_Object *image, const char *file)
{
Ephoto_Scale *es;
unsigned int *im_data;
char buf[PATH_MAX];
EINA_SAFETY_ON_NULL_GOTO(image, error);
es = calloc(1, sizeof(Ephoto_Scale));
EINA_SAFETY_ON_NULL_GOTO(es, error);
es->main = main;
es->parent = parent;
es->image = image;
snprintf(buf, PATH_MAX, "%s/.config/ephoto/temp.%s", getenv("HOME"),
strrchr(file, '.')+1);
es->tmp_file = eina_stringshare_add(buf);
if (ecore_file_exists(es->tmp_file))
ecore_file_unlink(es->tmp_file);
evas_object_image_save(elm_image_object_get(es->image), es->tmp_file,
NULL, NULL);
im_data =
evas_object_image_data_get(elm_image_object_get(es->image),
EINA_FALSE);
evas_object_image_size_get(elm_image_object_get(es->image), &es->w,
&es->h);
es->original_im_data = malloc(sizeof(unsigned int) * es->w * es->h);
memcpy(es->original_im_data, im_data,
sizeof(unsigned int) * es->w * es->h);
es->aspectw = (double)es->w / (double)es->h;
es->aspecth = (double)es->h / (double)es->w;
es->editor = ephoto_editor_add(ephoto, _("Scale Image"),
"es", es);
evas_object_event_callback_add(es->editor, EVAS_CALLBACK_DEL, _editor_del,
es);
es->aspect = elm_check_add(es->editor);
elm_object_text_set(es->aspect, _("Keep Aspect"));
evas_object_size_hint_align_set(es->aspect, 0.5, EVAS_HINT_FILL);
elm_check_state_set(es->aspect, EINA_TRUE);
elm_box_pack_start(es->editor, es->aspect);
evas_object_show(es->aspect);
es->scaleh = elm_spinner_add(es->editor);
elm_spinner_editable_set(es->scaleh, EINA_TRUE);
elm_spinner_label_format_set(es->scaleh, "Height: %1.0f");
elm_spinner_step_set(es->scaleh, 1);
elm_spinner_wrap_set(es->scaleh, EINA_FALSE);
elm_spinner_min_max_set(es->scaleh, 1, 99999);
elm_spinner_value_set(es->scaleh, es->h);
evas_object_size_hint_align_set(es->scaleh, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(es->scaleh, EVAS_HINT_EXPAND, EVAS_HINT_FILL);
evas_object_smart_callback_add(es->scaleh, "changed",
_scale_height_changed, es);
elm_box_pack_start(es->editor, es->scaleh);
evas_object_show(es->scaleh);
es->scalew = elm_spinner_add(es->editor);
elm_spinner_editable_set(es->scalew, EINA_TRUE);
elm_spinner_label_format_set(es->scalew, "Width: %1.0f");
elm_spinner_step_set(es->scalew, 1);
elm_spinner_wrap_set(es->scalew, EINA_FALSE);
elm_spinner_min_max_set(es->scalew, 1, 99999);
elm_spinner_value_set(es->scalew, es->w);
evas_object_size_hint_align_set(es->scalew, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(es->scalew, EVAS_HINT_EXPAND, EVAS_HINT_FILL);
evas_object_smart_callback_add(es->scalew, "changed",
_scale_width_changed, es);
elm_box_pack_start(es->editor, es->scalew);
evas_object_show(es->scalew);
es->handlers =
eina_list_append(es->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_RESET,
_es_reset, es));
es->handlers =
eina_list_append(es->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_APPLY,
_es_apply, es));
es->handlers =
eina_list_append(es->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_CANCEL,
_es_cancel, es));
return;
error:
return;
}
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