elm_transit - Combined effects over two objects.

This example shows how to apply the transition effects:

- flip
- resizable_flip
- fade
- blend over two objects. This kind of transition effect is used to make one object disappear and another one appear on its place.

You can mix more than one effect of this type on the same objects, and the transition will apply both.

//Compile with:
//gcc -o transit_example_04 transit_example_04.c `pkg-config --cflags --libs elementary` -DDATA_DIR="\"<directory>\""
//where directory is the a path where images/icon_07.png can be found.
#include <Elementary.h>
static void
_transit_flip(Elm_Transit *trans)
{
elm_transit_effect_flip_add(trans, ELM_TRANSIT_EFFECT_FLIP_AXIS_X, EINA_TRUE);
}
static void
_transit_blend(Elm_Transit *trans)
{
elm_transit_effect_blend_add(trans);
}
static void
_transit_fade(Elm_Transit *trans)
{
elm_transit_effect_fade_add(trans);
}
static void
_transit_resizable_flip(Elm_Transit *trans)
{
elm_transit_effect_resizable_flip_add(
trans, ELM_TRANSIT_EFFECT_FLIP_AXIS_Y, EINA_TRUE);
}
static struct {
const char *label;
void (*transition_add_cb)(Elm_Transit *);
Eina_Bool checked;
} _transitions[] = {
{ "Flip", _transit_flip, EINA_FALSE },
{ "Blend", _transit_blend, EINA_FALSE },
{ "Fade", _transit_fade, EINA_FALSE },
{ "Resizable Flip", _transit_resizable_flip, EINA_FALSE },
{ NULL, NULL, EINA_FALSE }
};
static void
_checkbox_transition_add(Evas_Object *box, const char *label, Eina_Bool *checked)
{
Evas_Object *check = elm_check_add(box);
evas_object_size_hint_weight_set(check, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(check, 0.0, 0.0);
elm_object_text_set(check, label);
elm_check_state_pointer_set(check, checked);
elm_box_pack_end(box, check);
evas_object_show(check);
}
static void
_transit_start(void *data, Evas_Object *o EINA_UNUSED, void *event_info EINA_UNUSED)
{
Elm_Transit *trans = NULL;
Eina_List *objs = data, *l;
Evas_Object *obj;
int i;
trans = elm_transit_add();
EINA_LIST_FOREACH(objs, l, obj)
elm_transit_object_add(trans, obj);
// FIXME: Should check if there's another transit going before starting a new
// one
for (i = 0; _transitions[i].label; i++)
{
if (_transitions[i].checked)
_transitions[i].transition_add_cb(trans);
}
elm_transit_duration_set(trans, 2.0);
elm_transit_go(trans);
}
EAPI_MAIN int
elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
Evas_Object *win, *icon, *box, *hbox, *btn, *rect;
Eina_List *objs = NULL;
char buf[PATH_MAX];
int i;
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
elm_app_info_set(elm_main, "elementary", "images/icon_07.png");
/* add a window */
win = elm_win_util_standard_add("transit", "Transit Example");
elm_win_autodel_set(win, EINA_TRUE);
box = elm_box_add(win);
evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, box);
evas_object_show(box);
/* add an object that we are going to play with */
btn = elm_button_add(win);
evas_object_size_hint_weight_set(btn, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(btn, EVAS_HINT_FILL, 0.0);
elm_object_text_set(btn, "Transformed object!");
icon = elm_icon_add(win);
snprintf(buf, sizeof(buf), "%s/images/icon_07.png", elm_app_data_dir_get());
elm_image_file_set(icon, buf, NULL);
elm_object_part_content_set(btn, "icon", icon);
evas_object_move(btn, 50, 50);
evas_object_resize(btn, 200, 50);
evas_object_show(btn);
objs = eina_list_append(objs, btn);
/* add another object that we are going to play with */
btn = elm_button_add(win);
evas_object_size_hint_weight_set(btn, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(btn, EVAS_HINT_FILL, 0.0);
elm_object_text_set(btn, "Another object!");
icon = elm_icon_add(win);
snprintf(buf, sizeof(buf), "%s/images/icon_08.png", elm_app_data_dir_get());
elm_image_file_set(icon, buf, NULL);
elm_object_part_content_set(btn, "icon", icon);
evas_object_move(btn, 50, 50);
evas_object_resize(btn, 200, 50);
objs = eina_list_append(objs, btn);
hbox = elm_box_add(win);
elm_box_horizontal_set(hbox, EINA_TRUE);
evas_object_size_hint_weight_set(hbox, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(hbox, EVAS_HINT_FILL, 0.0);
elm_box_pack_end(box, hbox);
evas_object_show(hbox);
for (i = 0; _transitions[i].label; i++)
_checkbox_transition_add(hbox, _transitions[i].label, &_transitions[i].checked);
btn = elm_button_add(win);
evas_object_size_hint_weight_set(btn, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_object_text_set(btn, "Transit!");
elm_box_pack_end(hbox, btn);
evas_object_show(btn);
evas_object_smart_callback_add(btn, "clicked", _transit_start, objs);
rect = evas_object_rectangle_add(evas_object_evas_get(win));
evas_object_color_set(rect, 0, 0, 0, 0);
evas_object_size_hint_weight_set(rect, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(rect, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(box, rect);
evas_object_show(rect);
evas_object_resize(win, 300, 100);
evas_object_show(win);
elm_run();
return 0;
}
ELM_MAIN()
EVAS_HINT_EXPAND
#define EVAS_HINT_EXPAND
Use with evas_object_size_hint_weight_set(), evas_object_size_hint_weight_get(), evas_object_size_hin...
Definition: Evas_Common.h:297
EVAS_HINT_FILL
#define EVAS_HINT_FILL
Use with evas_object_size_hint_align_set(), evas_object_size_hint_align_get(), evas_object_size_hint_...
Definition: Evas_Common.h:298
eina_list_append
EINA_API Eina_List * eina_list_append(Eina_List *list, const void *data)
Appends the given data to the given linked list.
Definition: eina_list.c:584
EINA_LIST_FOREACH
#define EINA_LIST_FOREACH(list, l, _data)
Definition for the macro to iterate over a list.
Definition: eina_list.h:1415
EINA_TRUE
#define EINA_TRUE
boolean value TRUE (numerical value 1)
Definition: eina_types.h:539
EINA_FALSE
#define EINA_FALSE
boolean value FALSE (numerical value 0)
Definition: eina_types.h:533
Eina_Bool
unsigned char Eina_Bool
Type to mimic a boolean.
Definition: eina_types.h:527
EINA_UNUSED
#define EINA_UNUSED
Used to indicate that a function parameter is purposely unused.
Definition: eina_types.h:339
elm_app_info_set
void elm_app_info_set(void *mainfunc, const char *dom, const char *checkfile)
Re-locate the application somewhere else after compilation, if the developer wishes for easier distri...
Definition: elm_main.c:496
elm_app_data_dir_get
const char * elm_app_data_dir_get(void)
Get the application's run time data prefix directory, as set by elm_app_info_set() and the way (envir...
Definition: elm_main.c:586
elm_box_add
Evas_Object * elm_box_add(Evas_Object *parent)
Add a new box to the parent.
Definition: elm_box.c:363
elm_box_horizontal_set
void elm_box_horizontal_set(Elm_Box *obj, Eina_Bool horizontal)
Set the horizontal orientation.
Definition: elm_box_eo.legacy.c:27
elm_box_pack_end
void elm_box_pack_end(Elm_Box *obj, Efl_Canvas_Object *subobj)
Add an object at the end of the pack list.
Definition: elm_box_eo.legacy.c:57
elm_button_add
Evas_Object * elm_button_add(Evas_Object *parent)
Add a new button to the parent's canvas.
Definition: efl_ui_button.c:459
elm_check_add
Evas_Object * elm_check_add(Evas_Object *parent)
Add a new Check object.
Definition: efl_ui_check.c:516
elm_check_state_pointer_set
void elm_check_state_pointer_set(Eo *obj, Eina_Bool *statep)
Set a convenience pointer to a boolean to change.
Definition: efl_ui_check.c:387
elm_object_part_content_set
void elm_object_part_content_set(Evas_Object *obj, const char *part, Evas_Object *content)
Set the content on part of a given container widget.
Definition: elm_main.c:1562
ELM_MAIN
#define ELM_MAIN()
macro to be used after the elm_main() function
Definition: elm_general.h:556
elm_policy_set
Eina_Bool elm_policy_set(unsigned int policy, int value)
Set a new policy's value (for a given policy group/identifier).
Definition: elm_main.c:1380
elm_run
void elm_run(void)
Run Elementary's main loop.
Definition: elm_main.c:1357
ELM_POLICY_QUIT_LAST_WINDOW_CLOSED
@ ELM_POLICY_QUIT_LAST_WINDOW_CLOSED
quit when the application's last window is closed
Definition: elm_general.h:248
ELM_POLICY_QUIT
@ ELM_POLICY_QUIT
under which circumstances the application should quit automatically.
Definition: elm_general.h:227
elm_icon_add
Evas_Object * elm_icon_add(Evas_Object *parent)
Add a new icon object to the parent.
Definition: elm_icon.c:613
elm_image_file_set
Eina_Bool elm_image_file_set(Evas_Object *obj, const char *file, const char *group)
Set the file that will be used as the image's source.
Definition: efl_ui_image.c:2435
elm_transit_effect_resizable_flip_add
Elm_Transit_Effect * elm_transit_effect_resizable_flip_add(Elm_Transit *transit, Elm_Transit_Effect_Flip_Axis axis, Eina_Bool cw)
Add the Resizeable Flip Effect to Elm_Transit.
Definition: elm_transit.c:1801
elm_transit_go
void elm_transit_go(Elm_Transit *transit)
Starts the transition.
Definition: elm_transit.c:856
elm_transit_duration_set
void elm_transit_duration_set(Elm_Transit *transit, double duration)
Set the transit animation time.
Definition: elm_transit.c:820
elm_transit_add
Elm_Transit * elm_transit_add(void)
Create new transit.
Definition: elm_transit.c:566
elm_transit_effect_flip_add
Elm_Transit_Effect * elm_transit_effect_flip_add(Elm_Transit *transit, Elm_Transit_Effect_Flip_Axis axis, Eina_Bool cw)
Add the Flip Effect to Elm_Transit.
Definition: elm_transit.c:1491
elm_transit_object_add
void elm_transit_object_add(Elm_Transit *transit, Evas_Object *obj)
Add new object to apply the effects.
Definition: elm_transit.c:653
elm_transit_effect_blend_add
Elm_Transit_Effect * elm_transit_effect_blend_add(Elm_Transit *transit)
Add the Blend Effect to Elm_Transit.
Definition: elm_transit.c:2467
Elm_Transit
struct _Elm_Transit Elm_Transit
The Transit created with elm_transit_add().
Definition: elm_transit.h:130
elm_transit_effect_fade_add
Elm_Transit_Effect * elm_transit_effect_fade_add(Elm_Transit *transit)
Add the Fade Effect to Elm_Transit.
Definition: elm_transit.c:2299
ELM_TRANSIT_EFFECT_FLIP_AXIS_Y
@ ELM_TRANSIT_EFFECT_FLIP_AXIS_Y
Flip on Y axis.
Definition: elm_transit.h:94
ELM_TRANSIT_EFFECT_FLIP_AXIS_X
@ ELM_TRANSIT_EFFECT_FLIP_AXIS_X
Flip on X axis.
Definition: elm_transit.h:93
elm_win_resize_object_add
void elm_win_resize_object_add(Eo *obj, Evas_Object *subobj)
Add subobj as a resize object of window obj.
Definition: efl_ui_win.c:8992
elm_win_autodel_set
void elm_win_autodel_set(Eo *obj, Eina_Bool autodel)
Set the window's autodel state.
Definition: efl_ui_win.c:6189
elm_win_util_standard_add
Evas_Object * elm_win_util_standard_add(const char *name, const char *title)
Adds a window object with standard setup.
Definition: efl_ui_win.c:9576
evas_object_show
EVAS_API void evas_object_show(Evas_Object *eo_obj)
Makes the given Evas object visible.
Definition: evas_object_main.c:1814
evas_object_color_set
EVAS_API void evas_object_color_set(Evas_Object *obj, int r, int g, int b, int a)
Sets the general/main color of the given Evas object to the given one.
Definition: evas_object_main.c:2024
evas_object_move
EVAS_API void evas_object_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
Move the given Evas object to the given location inside its canvas' viewport.
Definition: evas_object_main.c:1171
evas_object_size_hint_weight_set
EVAS_API void evas_object_size_hint_weight_set(Evas_Object *obj, double x, double y)
Sets the hints for an object's weight.
Definition: evas_object_main.c:2638
Evas_Object
Efl_Canvas_Object Evas_Object
An Evas Object handle.
Definition: Evas_Common.h:185
evas_object_size_hint_align_set
EVAS_API void evas_object_size_hint_align_set(Evas_Object *obj, double x, double y)
Sets the hints for an object's alignment.
Definition: evas_object_main.c:2650
evas_object_resize
EVAS_API void evas_object_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
Changes the size of the given Evas object.
Definition: evas_object_main.c:1236
evas_object_evas_get
EVAS_API Evas * evas_object_evas_get(const Eo *eo_obj)
Get the Evas to which this object belongs to.
Definition: evas_object_main.c:2662
evas_object_rectangle_add
EVAS_API Evas_Object * evas_object_rectangle_add(Evas *e)
Adds a rectangle to the given evas.
Definition: evas_object_rectangle.c:78
evas_object_smart_callback_add
EVAS_API void evas_object_smart_callback_add(Evas_Object *eo_obj, const char *event, Evas_Smart_Cb func, const void *data)
Add (register) a callback function to the smart event specified by event on the smart object obj.
Definition: evas_object_smart.c:1040
_Eina_List
Type for a generic double linked list.
Definition: eina_list.h:318