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#include "ephoto.h"
typedef struct _Ephoto_Color Ephoto_Color;
struct _Ephoto_Color
{
Evas_Object *main;
Evas_Object *parent;
Evas_Object *image;
Evas_Object *editor;
Evas_Object *bslider;
Evas_Object *gslider;
Evas_Object *rslider;
Eina_List *handlers;
int blue;
int green;
int red;
Evas_Coord w, h;
unsigned int *original_im_data;
};
static int
_normalize_color(int color)
{
if (color < 0)
return 0;
else if (color > 255)
return 255;
else
return color;
}
static int
_mul_color_alpha(int color, int alpha)
{
if (alpha > 0 && alpha < 255)
return color * (255 / alpha);
else
return color;
}
static int
_demul_color_alpha(int color, int alpha)
{
if (alpha > 0 && alpha < 255)
return (color * alpha) / 255;
else
return color;
}
unsigned int *
_ephoto_color_adjust_red(Ephoto_Color *eco, int red, unsigned int *image_data)
{
unsigned int *im_data, *im_data_new, *p1, *p2;
Evas_Coord x, y;
int a, r, g, b, rr;
im_data = malloc(sizeof(unsigned int) * eco->w * eco->h);
if (image_data)
memcpy(im_data, image_data, sizeof(unsigned int) * eco->w * eco->h);
else
memcpy(im_data, eco->original_im_data,
sizeof(unsigned int) * eco->w * eco->h);
eco->red = red;
im_data_new = malloc(sizeof(unsigned int) * eco->w * eco->h);
for (y = 0; y < eco->h; y++)
{
p1 = im_data + (y * eco->w);
p2 = im_data_new + (y * eco->w);
for (x = 0; x < eco->w; x++)
{
b = (int) ((*p1) & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
rr = (int) r + eco->red;
b = _normalize_color(b);
g = _normalize_color(g);
rr = _normalize_color(rr);
b = _demul_color_alpha(b, a);
g = _demul_color_alpha(g, a);
rr = _demul_color_alpha(rr, a);
*p2 = (a << 24) | (rr << 16) | (g << 8) | b;
p2++;
p1++;
}
}
ephoto_single_browser_image_data_update(eco->main, eco->image,
im_data_new, eco->w, eco->h);
free(im_data);
return im_data_new;
}
unsigned int *
_ephoto_color_adjust_green(Ephoto_Color *eco, int green,
unsigned int *image_data)
{
unsigned int *im_data, *im_data_new, *p1, *p2;
Evas_Coord x, y;
int a, r, g, b, gg;
im_data = malloc(sizeof(unsigned int) * eco->w * eco->h);
if (image_data)
memcpy(im_data, image_data, sizeof(unsigned int) * eco->w * eco->h);
else
memcpy(im_data, eco->original_im_data,
sizeof(unsigned int) * eco->w * eco->h);
eco->green = green;
im_data_new = malloc(sizeof(unsigned int) * eco->w * eco->h);
for (y = 0; y < eco->h; y++)
{
p1 = im_data + (y * eco->w);
p2 = im_data_new + (y * eco->w);
for (x = 0; x < eco->w; x++)
{
b = (int) ((*p1) & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
gg = (int) g + eco->green;
b = _normalize_color(b);
gg = _normalize_color(gg);
r = _normalize_color(r);
b = _demul_color_alpha(b, a);
gg = _demul_color_alpha(gg, a);
r = _demul_color_alpha(r, a);
*p2 = (a << 24) | (r << 16) | (gg << 8) | b;
p2++;
p1++;
}
}
ephoto_single_browser_image_data_update(eco->main, eco->image,
im_data_new, eco->w, eco->h);
free(im_data);
return im_data_new;
}
unsigned int *
_ephoto_color_adjust_blue(Ephoto_Color *eco, int blue,
unsigned int *image_data)
{
unsigned int *im_data, *im_data_new, *p1, *p2;
Evas_Coord x, y;
int a, r, g, b, bb;
im_data = malloc(sizeof(unsigned int) * eco->w * eco->h);
if (image_data)
memcpy(im_data, image_data, sizeof(unsigned int) * eco->w * eco->h);
else
memcpy(im_data, eco->original_im_data,
sizeof(unsigned int) * eco->w * eco->h);
eco->blue = blue;
im_data_new = malloc(sizeof(unsigned int) * eco->w * eco->h);
for (y = 0; y < eco->h; y++)
{
p1 = im_data + (y * eco->w);
p2 = im_data_new + (y * eco->w);
for (x = 0; x < eco->w; x++)
{
b = (int) ((*p1) & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
bb = (int) b + eco->blue;
bb = _normalize_color(bb);
g = _normalize_color(g);
r = _normalize_color(r);
bb = _demul_color_alpha(bb, a);
g = _demul_color_alpha(g, a);
r = _demul_color_alpha(r, a);
*p2 = (a << 24) | (r << 16) | (g << 8) | bb;
p2++;
p1++;
}
}
ephoto_single_browser_image_data_update(eco->main, eco->image,
im_data_new, eco->w, eco->h);
free(im_data);
return im_data_new;
}
static void
_red_slider_changed(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
int red;
unsigned int *image_data, *image_data_two;
red = elm_slider_value_get(obj);
image_data = _ephoto_color_adjust_red(eco, red, NULL);
image_data_two = _ephoto_color_adjust_green(eco, eco->green, image_data);
_ephoto_color_adjust_blue(eco, eco->blue, image_data_two);
}
static void
_green_slider_changed(void *data, Evas_Object *obj,
void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
int green;
unsigned int *image_data, *image_data_two;
green = elm_slider_value_get(obj);
image_data = _ephoto_color_adjust_green(eco, green, NULL);
image_data_two = _ephoto_color_adjust_red(eco, eco->red, image_data);
_ephoto_color_adjust_blue(eco, eco->blue, image_data_two);
}
static void
_blue_slider_changed(void *data, Evas_Object *obj,
void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
int blue;
unsigned int *image_data, *image_data_two;
blue = elm_slider_value_get(obj);
image_data = _ephoto_color_adjust_blue(eco, blue, NULL);
image_data_two = _ephoto_color_adjust_red(eco, eco->red, image_data);
_ephoto_color_adjust_green(eco, eco->green, image_data_two);
}
static Eina_Bool
_color_reset(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
elm_slider_value_set(eco->rslider, 0);
elm_slider_value_set(eco->gslider, 0);
elm_slider_value_set(eco->bslider, 0);
eco->red = 0;
eco->green = 0;
eco->blue = 0;
_red_slider_changed(eco, eco->rslider, NULL);
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_color_apply(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
unsigned int *image_data;
Evas_Coord w, h;
if (elm_slider_value_get(eco->rslider) == 0 &&
elm_slider_value_get(eco->gslider) == 0 &&
elm_slider_value_get(eco->bslider) == 0)
{
ephoto_single_browser_cancel_editing(eco->main);
}
else
{
image_data =
evas_object_image_data_get(eco->image, EINA_FALSE);
evas_object_image_size_get(eco->image, &w, &h);
ephoto_single_browser_image_data_done(eco->main, image_data, w, h);
}
ephoto_editor_del(eco->editor);
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_color_cancel(void *data, int type EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Color *eco = data;
elm_slider_value_set(eco->rslider, 0);
elm_slider_value_set(eco->gslider, 0);
elm_slider_value_set(eco->bslider, 0);
eco->red = 0;
eco->green = 0;
eco->blue = 0;
_red_slider_changed(eco, eco->rslider, NULL);
ephoto_single_browser_cancel_editing(eco->main);
ephoto_editor_del(eco->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_Color *eco = data;
Ecore_Event_Handler *handler;
EINA_LIST_FREE(eco->handlers, handler)
ecore_event_handler_del(handler);
free(eco->original_im_data);
free(eco);
}
void
ephoto_color_add(Ephoto *ephoto, Evas_Object *main, Evas_Object *parent, Evas_Object *image)
{
Evas_Object *slider;
Ephoto_Color *eco;
unsigned int *im_data;
EINA_SAFETY_ON_NULL_GOTO(image, error);
eco = calloc(1, sizeof(Ephoto_Color));
EINA_SAFETY_ON_NULL_GOTO(eco, error);
eco->red = 0;
eco->green = 0;
eco->blue = 0;
eco->main = main;
eco->parent = parent;
eco->image = image;
im_data =
evas_object_image_data_get(eco->image,
EINA_FALSE);
evas_object_image_size_get(eco->image, &eco->w,
&eco->h);
eco->original_im_data = malloc(sizeof(unsigned int) * eco->w * eco->h);
memcpy(eco->original_im_data, im_data,
sizeof(unsigned int) * eco->w * eco->h);
eco->editor = ephoto_editor_add(ephoto, _("Adjust Color Levels"),
"eco", eco);
evas_object_event_callback_add(eco->editor, EVAS_CALLBACK_DEL, _editor_del,
eco);
slider = elm_slider_add(eco->editor);
elm_object_text_set(slider, _("Blue"));
elm_slider_min_max_set(slider, -100, 100);
elm_slider_step_set(slider, 1);
elm_slider_value_set(slider, 0);
elm_slider_unit_format_set(slider, "%1.0f");
evas_object_size_hint_weight_set(slider, EVAS_HINT_EXPAND, EVAS_HINT_FILL);
evas_object_size_hint_align_set(slider, EVAS_HINT_FILL, 0.5);
evas_object_smart_callback_add(slider, "delay,changed",
_blue_slider_changed, eco);
elm_box_pack_start(eco->editor, slider);
evas_object_show(slider);
eco->bslider = slider;
slider = elm_slider_add(eco->editor);
elm_object_text_set(slider, _("Green"));
elm_slider_min_max_set(slider, -100, 100);
elm_slider_step_set(slider, 1);
elm_slider_value_set(slider, 0);
elm_slider_unit_format_set(slider, "%1.0f");
evas_object_size_hint_weight_set(slider, EVAS_HINT_EXPAND, EVAS_HINT_FILL);
evas_object_size_hint_align_set(slider, EVAS_HINT_FILL, 0.5);
evas_object_smart_callback_add(slider, "delay,changed",
_green_slider_changed, eco);
elm_box_pack_start(eco->editor, slider);
evas_object_show(slider);
eco->gslider = slider;
slider = elm_slider_add(eco->editor);
elm_object_text_set(slider, _("Red"));
elm_slider_min_max_set(slider, -100, 100);
elm_slider_step_set(slider, 1);
elm_slider_value_set(slider, 0);
elm_slider_unit_format_set(slider, "%1.0f");
evas_object_size_hint_weight_set(slider, EVAS_HINT_EXPAND, EVAS_HINT_FILL);
evas_object_size_hint_align_set(slider, EVAS_HINT_FILL, 0.5);
evas_object_smart_callback_add(slider, "delay,changed",
_red_slider_changed, eco);
elm_box_pack_start(eco->editor, slider);
evas_object_show(slider);
eco->rslider = slider;
eco->handlers =
eina_list_append(eco->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_RESET,
_color_reset, eco));
eco->handlers =
eina_list_append(eco->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_APPLY,
_color_apply, eco));
eco->handlers =
eina_list_append(eco->handlers,
ecore_event_handler_add(EPHOTO_EVENT_EDITOR_CANCEL,
_color_cancel, eco));
return;
error:
return;
}