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efl/legacy/elementary/src/bin/test_gesture_layer.c

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#ifdef HAVE_CONFIG_H
# include "elementary_config.h"
#endif
#include <Elementary.h>
#ifndef ELM_LIB_QUICKLAUNCH
/* We zoom out to this value so we'll be able to use map and have a nice
* resolution when zooming in. */
#define BASE_ZOOM 0.5
/* The amount of zoom to do when "lifting" objects. */
#define LIFT_FACTOR 1.3
/* The base size of the shadow image. */
#define SHADOW_W 118
#define SHADOW_H 118
static double zoom_out_animation_duration = 0.4;
struct _Photo_Object {
Evas_Object *ic, *shadow;
Evas_Object *hit;
Evas_Object *gl;
Elm_Transit *zoom_out;
/* bx, by - current wanted coordinates of the photo object.
* bw, bh - original size of the "ic" object.
* dx, dy - Used to indicate the distance between the center point
* where we put down our fingers (when started moving the item) to
* the coords of the object, so we'll be able to calculate movement
* correctly. */
Evas_Coord bx, by, bw, bh, dx, dy;
/* Because gesture layer only knows the amount of rotation/zoom we do
* per gesture, we have to keep the current rotate/zoom factor and the
* one that was before we started the gesture. */
int base_rotate, rotate;
double base_zoom, zoom;
double shadow_zoom;
};
typedef struct _Photo_Object Photo_Object;
/* This function applies the information from the Photo_Object to the actual
* evas objects. Zoom/rotate factors and etc. */
static void
apply_changes(Photo_Object *po)
{
Evas_Map *map;
map = evas_map_new(4);
evas_map_point_coord_set(map, 0, po->bx, po->by, 0);
evas_map_point_coord_set(map, 1, po->bx + po->bw, po->by, 0);
evas_map_point_coord_set(map, 2, po->bx + po->bw, po->by + po->bh, 0);
evas_map_point_coord_set(map, 3, po->bx, po->by + po->bh, 0);
evas_map_point_image_uv_set(map, 0, 0, 0);
evas_map_point_image_uv_set(map, 1, po->bw, 0);
evas_map_point_image_uv_set(map, 2, po->bw, po->bh);
evas_map_point_image_uv_set(map, 3, 0, po->bh);
evas_map_util_rotate(map, po->rotate,
po->bx + po->bw / 2, po->by + po->bh /2);
evas_map_util_zoom(map, po->zoom, po->zoom,
po->bx + po->bw / 2, po->by + po->bh /2);
evas_object_map_enable_set(po->ic, EINA_TRUE);
evas_object_map_set(po->ic, map);
{
Evas_Map *shadow_map = evas_map_new(4);
evas_map_point_coord_set(shadow_map, 0, po->bx, po->by, 0);
evas_map_point_coord_set(shadow_map, 1, po->bx + po->bw, po->by, 0);
evas_map_point_coord_set(shadow_map, 2, po->bx + po->bw, po->by + po->bh, 0);
evas_map_point_coord_set(shadow_map, 3, po->bx, po->by + po->bh, 0);
evas_map_point_image_uv_set(shadow_map, 0, 0, 0);
evas_map_point_image_uv_set(shadow_map, 1, SHADOW_W, 0);
evas_map_point_image_uv_set(shadow_map, 2, SHADOW_W, SHADOW_H);
evas_map_point_image_uv_set(shadow_map, 3, 0, SHADOW_H);
evas_map_util_rotate(shadow_map, po->rotate,
po->bx + po->bw / 2, po->by + po->bh /2);
evas_map_util_zoom(shadow_map, po->zoom * po->shadow_zoom,
po->zoom * po->shadow_zoom,
po->bx + (po->bw / 2), po->by + (po->bh / 2));
evas_object_map_enable_set(po->shadow, EINA_TRUE);
evas_object_map_set(po->shadow, shadow_map);
evas_map_free(shadow_map);
}
/* Update the position of the hit box */
{
Evas_Coord minx, miny, maxx, maxy;
int i;
evas_object_polygon_points_clear(po->hit);
evas_map_point_coord_get(map, 0, &minx, &miny, NULL);
maxx = minx;
maxy = miny;
evas_object_polygon_point_add(po->hit, minx, miny);
for (i = 1 ; i <= 3 ; i++)
{
Evas_Coord x, y;
evas_map_point_coord_get(map, i, &x, &y, NULL);
evas_object_polygon_point_add(po->hit, x, y);
if (x < minx)
minx = x;
else if (x > maxx)
maxx = x;
if (y < miny)
miny = y;
else if (y > maxy)
maxy = y;
}
}
evas_object_raise(po->shadow);
evas_object_raise(po->ic);
evas_object_raise(po->hit);
evas_map_free(map);
}
/* Zoom out animation */
static void
zoom_out_animation_operation(void *_po, Elm_Transit *transit __UNUSED__,
double progress)
{
Photo_Object *po = (Photo_Object *) _po;
po->zoom = BASE_ZOOM + ((po->base_zoom - BASE_ZOOM) * (1.0 - progress));
apply_changes(po);
}
static void
zoom_out_animation_end(void *_po, Elm_Transit *transit __UNUSED__)
{
Photo_Object *po = (Photo_Object *) _po;
po->base_zoom = po->zoom = BASE_ZOOM;
apply_changes(po);
po->zoom_out = NULL;
}
static Evas_Event_Flags
rotate_move(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Rotate_Info *p = (Elm_Gesture_Rotate_Info *) event_info;
printf("rotate move <%d,%d> base=<%f> <%f>\n", p->x, p->y, p->base_angle, p->angle);
po->rotate = po->base_rotate + (int) p->angle - p->base_angle;
if (po->rotate < 0)
po->rotate += 360;
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
rotate_end(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Rotate_Info *p = (Elm_Gesture_Rotate_Info *) event_info;
printf("rotate end/abort <%d,%d> base=<%f> <%f>\n", p->x, p->y, p->base_angle, p->angle);
po->base_rotate += (int) p->angle - p->base_angle;
if (po->rotate < 0)
po->rotate += 360;
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
zoom_start(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Zoom_Info *p = (Elm_Gesture_Zoom_Info *) event_info;
printf("zoom start <%d,%d> <%f>\n", p->x, p->y, p->zoom);
/* If there's an active animator, stop it */
if (po->zoom_out)
{
elm_transit_del(po->zoom_out);
po->zoom_out = NULL;
}
/* Give it a "lift" effect right from the start */
po->base_zoom = BASE_ZOOM * LIFT_FACTOR;
po->zoom = po->base_zoom;
po->shadow_zoom = 1.7;
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
zoom_move(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Zoom_Info *p = (Elm_Gesture_Zoom_Info *) event_info;
printf("zoom move <%d,%d> <%f>\n", p->x, p->y, p->zoom);
po->zoom = po->base_zoom * p->zoom;
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
zoom_end(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Zoom_Info *p = (Elm_Gesture_Zoom_Info *) event_info;
printf("zoom end/abort <%d,%d> <%f>\n", p->x, p->y, p->zoom);
/* Apply the zoom out animator */
po->shadow_zoom = 1.3;
po->base_zoom = po->zoom;
po->zoom_out = elm_transit_add();
elm_transit_duration_set(po->zoom_out, zoom_out_animation_duration);
elm_transit_effect_add(po->zoom_out, zoom_out_animation_operation, po, zoom_out_animation_end);
elm_transit_go(po->zoom_out);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
momentum_start(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Momentum_Info *p = (Elm_Gesture_Momentum_Info *) event_info;
printf("momentum_start <%d,%d>\n", p->x2, p->y2);
po->dx = p->x2 - po->bx;
po->dy = p->y2 - po->by;
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
momentum_move(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Momentum_Info *p = (Elm_Gesture_Momentum_Info *) event_info;
printf("momentum move <%d,%d>\n", p->x2, p->y2);
po->bx = p->x2 - po->dx;
po->by = p->y2 - po->dy;
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static Evas_Event_Flags
momentum_end(void *_po, void *event_info)
{
Photo_Object *po = (Photo_Object *) _po;
Elm_Gesture_Momentum_Info *p = (Elm_Gesture_Momentum_Info *) event_info;
printf("momentum end/abort <%d,%d> <%d,%d>\n", p->x2, p->y2, p->mx, p->my);
(void) po;
(void) p;
/* Make sure middle is in the screen, if not, fix it. */
{
/* FIXME: Use actual window sizes instead of the hardcoded
* values */
Evas_Coord mx, my;
mx = po->bx + (po->bw / 2);
my = po->by + (po->bh / 2);
if (mx < 0)
po->bx = 0 - (po->bw / 2);
else if (mx > 480)
po->bx = 480 - (po->bw / 2);
if (my < 0)
po->by = 0 - (po->bw / 2);
else if (my > 800)
po->by = 800 - (po->bh / 2);
}
apply_changes(po);
return EVAS_EVENT_FLAG_NONE;
}
static void
_win_del_req(void *data, Evas_Object *obj __UNUSED__,
void *event_info __UNUSED__)
{
Photo_Object **photo_array = (Photo_Object **) data;
if (!photo_array)
return;
/* The content of the photo object is automatically deleted when the win
* is deleted. */
for ( ; *photo_array ; photo_array++)
free(*photo_array);
free(data);
}
Photo_Object *
photo_object_add(Evas_Object *parent, Evas_Object *ic, const char *icon, Evas_Coord x,
Evas_Coord y, Evas_Coord w, Evas_Coord h, int angle)
{
char buf[PATH_MAX];
Photo_Object *po;
po = calloc(1, sizeof(*po));
po->base_zoom = po->zoom = BASE_ZOOM;
if (ic)
{
po->ic = ic;
}
else
{
po->ic = elm_icon_add(parent);
elm_image_file_set(po->ic, icon, NULL);
}
po->bx = x;
po->by = y;
po->bw = w;
po->bh = h;
/* Add shadow */
{
po->shadow = elm_icon_add(po->ic);
snprintf(buf, sizeof(buf), "%s/images/pol_shadow.png", elm_app_data_dir_get());
elm_image_file_set(po->shadow, buf, NULL);
evas_object_resize(po->shadow, SHADOW_W, SHADOW_H);
evas_object_show(po->shadow);
}
po->hit = evas_object_polygon_add(evas_object_evas_get(parent));
evas_object_precise_is_inside_set(po->hit, EINA_TRUE);
evas_object_repeat_events_set(po->hit, EINA_TRUE);
evas_object_color_set(po->hit, 0, 0, 0, 0);
evas_object_resize(po->ic, po->bw, po->bh);
evas_object_show(po->ic);
evas_object_show(po->hit);
po->gl = elm_gesture_layer_add(po->ic);
elm_gesture_layer_hold_events_set(po->gl, EINA_TRUE);
elm_gesture_layer_attach(po->gl, po->hit);
/* FIXME: Add a po->rotate start so we take the first angle!!!! */
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ROTATE, ELM_GESTURE_STATE_MOVE, rotate_move, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ROTATE, ELM_GESTURE_STATE_END, rotate_end, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ROTATE, ELM_GESTURE_STATE_ABORT, rotate_end, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ZOOM, ELM_GESTURE_STATE_START, zoom_start, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ZOOM, ELM_GESTURE_STATE_MOVE, zoom_move, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ZOOM, ELM_GESTURE_STATE_END, zoom_end, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_ZOOM, ELM_GESTURE_STATE_ABORT, zoom_end, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_MOMENTUM, ELM_GESTURE_STATE_START, momentum_start, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_MOMENTUM, ELM_GESTURE_STATE_MOVE, momentum_move, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_MOMENTUM, ELM_GESTURE_STATE_END, momentum_end, po);
elm_gesture_layer_cb_set(po->gl, ELM_GESTURE_MOMENTUM, ELM_GESTURE_STATE_ABORT, momentum_end, po);
po->rotate = po->base_rotate = angle;
po->shadow_zoom = 1.3;
apply_changes(po);
return po;
}
void
test_gesture_layer(void *data __UNUSED__, Evas_Object *obj __UNUSED__,
void *event_info __UNUSED__)
{
Evas_Coord w, h;
Evas_Object *win, *bg;
char buf[PATH_MAX];
int ind = 0;
Photo_Object **photo_array;
photo_array = calloc(sizeof(*photo_array), 4);
w = 480;
h = 800;
win = elm_win_add(NULL, "gesture-layer", ELM_WIN_BASIC);
elm_win_title_set(win, "Gesture Layer");
elm_win_autodel_set(win, EINA_TRUE);
evas_object_resize(win, w, h);
bg = elm_bg_add(win);
snprintf(buf, sizeof(buf), "%s/images/wood_01.jpg", elm_app_data_dir_get());
elm_bg_file_set(bg, buf, NULL);
evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, bg);
evas_object_show(bg);
snprintf(buf, sizeof(buf), "%s/images/pol_sky.png", elm_app_data_dir_get());
photo_array[ind++] = photo_object_add(win, NULL, buf, 200, 200, 365, 400, 0);
snprintf(buf, sizeof(buf), "%s/images/pol_twofish.png", elm_app_data_dir_get());
photo_array[ind++] = photo_object_add(win, NULL, buf, 40, 300, 365, 400, 45);
Evas_Object *en = elm_entry_add(win);
elm_object_text_set(en, "You can use whatever object you want, "
"even entries like this.");
elm_entry_line_wrap_set(en, ELM_WRAP_MIXED);
Evas_Object *postit = elm_layout_add(win);
snprintf(buf, sizeof(buf), "%s/objects/postit_ent.edj", elm_app_data_dir_get());
elm_layout_file_set(postit, buf, "main");
elm_object_part_content_set(postit, "ent", en);
photo_array[ind++] = photo_object_add(win, postit, NULL, 50, 50, 382, 400, 355);
photo_array[ind] = NULL;
evas_object_smart_callback_add(win, "delete,request", _win_del_req,
photo_array);
evas_object_show(win);
}
#endif
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