Progress bar example

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Progress bar example
#include <Elementary.h>
#include <time.h>
typedef struct Progressbar_Example
{
Evas_Object *pb1;
Evas_Object *pb2; /* pulsing */
Evas_Object *pb3;
Evas_Object *pb4;
Evas_Object *pb5;
Evas_Object *pb6; /* pulsing */
Evas_Object *pb7;
Evas_Object *pb8; /* pulsing */
Eina_Bool run;
Ecore_Timer *timer;
} Progressbar_Example;
static Progressbar_Example example_data;
static Eina_Bool
_progressbar_example_value_set(void *data)
{
double progress;
progress = elm_progressbar_value_get(example_data.pb1);
if (progress < 1.0) progress += 0.0123;
else progress = 0.0;
/* just the non-pulsing ones need an update */
elm_progressbar_value_set(example_data.pb1, progress);
elm_progressbar_value_set(example_data.pb3, progress);
elm_progressbar_value_set(example_data.pb4, progress);
elm_progressbar_value_set(example_data.pb5, progress);
elm_progressbar_value_set(example_data.pb7, progress);
if (progress < 1.0) return ECORE_CALLBACK_RENEW;
example_data.run = 0;
return ECORE_CALLBACK_CANCEL;
}
static void
_progressbar_example_start(void *data,
Evas_Object *obj,
void *event_info)
{
elm_progressbar_pulse(example_data.pb2, EINA_TRUE);
elm_progressbar_pulse(example_data.pb6, EINA_TRUE);
elm_progressbar_pulse(example_data.pb8, EINA_TRUE);
if (!example_data.run)
{
example_data.timer = ecore_timer_add(
0.1, _progressbar_example_value_set, NULL);
example_data.run = EINA_TRUE;
}
}
/* end of show */
static void
_progressbar_example_stop(void *data,
Evas_Object *obj,
void *event_info)
{
elm_progressbar_pulse(example_data.pb2, EINA_FALSE);
elm_progressbar_pulse(example_data.pb6, EINA_FALSE);
elm_progressbar_pulse(example_data.pb8, EINA_FALSE);
if (example_data.run)
{
ecore_timer_del(example_data.timer);
example_data.run = EINA_FALSE;
}
}
/* Format callback */
static char *
_progress_format_cb(double val)
{
static char buf[30];
int files = (1-val)*14000;
if (snprintf(buf, 30, "%i files left", files) > 0)
return strdup(buf);
return NULL;
}
static void
_progress_format_free(char *str)
{
free(str);
}
/* Callback for "changed" signal */
static void
_on_changed(void *data,
Evas_Object *obj,
void *event_info)
{
static char buf[30];
static time_t tstart = 0;
static double eta = 0;
time_t tdiff;
double val;
Evas_Object *label = (Evas_Object *)data;
val = elm_progressbar_value_get(obj);
if (val == 0)
{
tstart = 0;
elm_object_text_set(label, "ETA: N/A");
return;
}
/* First invocation */
if (tstart == 0)
{
tstart = time(NULL);
}
/* Calculate ETA and update */
tdiff = time(NULL) - tstart;
eta = 0.3*eta + 0.7*(tdiff/val)*(1-val);
snprintf(buf, 30, "ETA: %.0fs", eta);
elm_object_text_set(label, buf);
}
static void
_on_done(void *data,
Evas_Object *obj,
void *event_info)
{
_progressbar_example_stop(NULL, NULL, NULL);
elm_exit();
}
EAPI_MAIN int
elm_main(int argc,
char **argv)
{
Evas_Object *win, *pb, *bx, *hbx, *bt, *bt_bx, *ic1, *ic2, *label;
char buf[PATH_MAX];
elm_app_info_set(elm_main, "elementary", "images/logo_small.png");
win = elm_win_util_standard_add("progressbar", "Progress bar example");
evas_object_smart_callback_add(win, "delete,request", _on_done, NULL);
bx = elm_box_add(win);
evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, bx);
evas_object_show(bx);
/* pb with no label, default unit label and no icon */
pb = elm_progressbar_add(win);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
elm_box_pack_end(bx, pb);
evas_object_show(pb);
example_data.pb1 = pb;
/* pb with label, and set to pulse */
pb = elm_progressbar_add(win);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_object_text_set(pb, "Infinite bounce");
elm_progressbar_pulse_set(pb, EINA_TRUE);
elm_box_pack_end(bx, pb);
evas_object_show(pb);
example_data.pb2 = pb;
ic1 = elm_icon_add(win);
snprintf(buf, sizeof(buf), "%s/images/logo_small.png", elm_app_data_dir_get());
elm_image_file_set(ic1, buf, NULL);
evas_object_size_hint_aspect_set(ic1, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1);
/* pb with label, icon, custom unit label function and span size set */
pb = elm_progressbar_add(win);
elm_object_text_set(pb, "Label");
elm_object_part_content_set(pb, "icon", ic1);
elm_progressbar_inverted_set(pb, EINA_TRUE);
elm_progressbar_unit_format_function_set(pb, _progress_format_cb,
_progress_format_free);
elm_progressbar_span_size_set(pb, 200);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(bx, pb);
evas_object_show(ic1);
evas_object_show(pb);
example_data.pb3 = pb;
/* pb with label and changed trigger */
pb = elm_progressbar_add(win);
elm_object_text_set(pb, "Label");
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(bx, pb);
evas_object_show(pb);
label = elm_label_add(win);
elm_object_text_set(label, "ETA: N/A");
evas_object_size_hint_align_set(label, 0.5, 0.5);
evas_object_size_hint_weight_set(label, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(bx, label);
evas_object_show(label);
evas_object_smart_callback_add(pb, "changed", _on_changed, label);
example_data.pb4 = pb;
hbx = elm_box_add(win);
elm_box_horizontal_set(hbx, EINA_TRUE);
evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(bx, hbx);
evas_object_show(hbx);
/* vertical pb */
pb = elm_progressbar_add(win);
elm_progressbar_horizontal_set(pb, EINA_FALSE);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(hbx, pb);
elm_object_text_set(pb, "percent");
evas_object_show(pb);
example_data.pb5 = pb;
/* vertical pb, with pulse and custom (small) span size */
pb = elm_progressbar_add(win);
elm_progressbar_horizontal_set(pb, EINA_FALSE);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_progressbar_span_size_set(pb, 80);
elm_progressbar_pulse_set(pb, EINA_TRUE);
elm_progressbar_unit_format_set(pb, NULL);
elm_object_text_set(pb, "Infinite bounce");
elm_box_pack_end(hbx, pb);
evas_object_show(pb);
example_data.pb6 = pb;
ic2 = elm_icon_add(win);
elm_image_file_set(ic2, buf, NULL);
evas_object_size_hint_aspect_set(ic2, EVAS_ASPECT_CONTROL_HORIZONTAL, 1, 1);
/* vertical pb, inverted, with custom unit format and icon*/
pb = elm_progressbar_add(win);
elm_progressbar_horizontal_set(pb, EINA_FALSE);
elm_object_text_set(pb, "Label");
elm_object_part_content_set(pb, "icon", ic2);
elm_progressbar_inverted_set(pb, EINA_TRUE);
elm_progressbar_unit_format_set(pb, "%1.2f%%");
elm_progressbar_span_size_set(pb, 200);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(hbx, pb);
evas_object_show(ic2);
evas_object_show(pb);
example_data.pb7 = pb;
/* "wheel" style progress bar */
pb = elm_progressbar_add(win);
elm_object_style_set(pb, "wheel");
elm_object_text_set(pb, "Style: wheel");
elm_progressbar_pulse_set(pb, EINA_TRUE);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(bx, pb);
evas_object_show(pb);
example_data.pb8 = pb;
bt_bx = elm_box_add(win);
elm_box_horizontal_set(bt_bx, EINA_TRUE);
evas_object_size_hint_weight_set(bt_bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_box_pack_end(bx, bt_bx);
evas_object_show(bt_bx);
bt = elm_button_add(win);
elm_object_text_set(bt, "Start");
evas_object_smart_callback_add(bt, "clicked", _progressbar_example_start,
NULL);
elm_box_pack_end(bt_bx, bt);
evas_object_show(bt);
bt = elm_button_add(win);
elm_object_text_set(bt, "Stop");
evas_object_smart_callback_add(bt, "clicked", _progressbar_example_stop,
NULL);
elm_box_pack_end(bt_bx, bt);
evas_object_show(bt);
evas_object_show(win);
elm_run();
return 0;
}
ELM_MAIN()