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efl/legacy/elementary/src/lib/elm_photocam.c

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#include <Elementary.h>
#include "elm_priv.h"
/**
* @defgroup Photocam Photocam
*
* This is a widget specifically for displaying high-resolution digital
* camera photos giving speedy feedback (fast load), low memory footprint
* and zooming and panning as well as fitting logic. It is entirely focused
* on jpeg images, and takes advantage of properties of the jpeg format (via
* evas loader features in the jpeg loader).
*
* Signals that you can add callbacks for are:
*
* "clicked" - This is called when a user has clicked the photo without dragging
* around.
* "press" - This is called when a user has pressed down on the photo.
* "longpressed" - This is called when a user has pressed down on the photo for
* a long time without dragging around.
* "clicked,double" - This is called when a user has double-clicked the photo.
* "load" - Photo load begins.
* "loaded" - This is called when the image file load is complete for the first
* view (low resolution blurry version).
* "load,detail" - Photo detailed data load begins.
* "loaded,detail" - This is called when the image file load is complete for
* the detailed image data (full resolution needed).
* "zoom,start" - Zoom animation started.
* "zoom,stop" - Zoom animation stopped.
* "zoom,change" - Zoom changed when using an auto zoom mode.
* "scroll" - the content has been scrolled (moved)
* "scroll,anim,start" - scrolling animation has started
* "scroll,anim,stop" - scrolling animation has stopped
* "scroll,drag,start" - dragging the contents around has started
* "scroll,drag,stop" - dragging the contents around has stopped
*
* ---
*
* TODO (maybe - optional future stuff):
*
* 1. wrap photo in theme edje so u can have styling around photo (like white
* photo bordering).
* 2. exif handling
* 3. rotation flags in exif handling (nasty! should have rot in evas)
*
*/
typedef struct _Widget_Data Widget_Data;
typedef struct _Pan Pan;
typedef struct _Grid Grid;
typedef struct _Grid_Item Grid_Item;
struct _Grid_Item
{
Widget_Data *wd;
Evas_Object *img;
struct
{
int x, y, w, h;
} src, out;
Eina_Bool want : 1;
Eina_Bool have : 1;
};
struct _Grid
{
int tsize; // size of tile (tsize x tsize pixels)
int zoom; // zoom level tiles want for optimal display (1, 2, 4, 8)
int iw, ih; // size of image in pixels
int w, h; // size of grid image in pixels (represented by grid)
int gw, gh; // size of grid in tiles
Grid_Item *grid; // the grid (gw * gh items)
Eina_Bool dead : 1; // old grid. will die as soon as anim is over
};
struct _Widget_Data
{
Evas_Object *obj;
Evas_Object *scr;
Evas_Object *pan_smart;
Pan *pan;
Evas_Coord pan_x, pan_y, minw, minh;
double zoom;
Elm_Photocam_Zoom_Mode mode;
const char *file;
Ecore_Job *calc_job;
Ecore_Timer *scr_timer;
Ecore_Timer *long_timer;
Ecore_Animator *zoom_animator;
double t_start, t_end;
struct
{
int imw, imh;
int w, h;
int ow, oh, nw, nh;
struct
{
double x, y;
} spos;
} size;
struct
{
Eina_Bool show : 1;
Evas_Coord x, y ,w ,h;
} show;
int tsize;
Evas_Object *img; // low res version of image (scale down == 8)
int nosmooth;
int preload_num;
Eina_List *grids;
Eina_Bool main_load_pending : 1;
Eina_Bool resized : 1;
Eina_Bool longpressed : 1;
Eina_Bool on_hold : 1;
Eina_Bool paused : 1;
};
struct _Pan
{
Evas_Object_Smart_Clipped_Data __clipped_data;
Widget_Data *wd;
};
static const char *widtype = NULL;
static void _del_hook(Evas_Object *obj);
static void _theme_hook(Evas_Object *obj);
static void _on_focus_hook(void *data, Evas_Object *obj);
//static void _show_region_hook(void *data, Evas_Object *obj);
static void _sizing_eval(Evas_Object *obj);
static void _calc_job(void *data);
static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__,
Evas_Callback_Type type, void *event_info);
static void grid_place(Evas_Object *obj, Grid *g, Evas_Coord px, Evas_Coord py, Evas_Coord ox, Evas_Coord oy, Evas_Coord ow, Evas_Coord oh);
static void grid_clear(Evas_Object *obj, Grid *g);
static Grid *grid_create(Evas_Object *obj);
static void grid_load(Evas_Object *obj, Grid *g);
static const char SIG_CLICKED[] = "clicked";
static const char SIG_PRESS[] = "press";
static const char SIG_LONGPRESSED[] = "longpressed";
static const char SIG_CLICKED_DOUBLE[] = "clicked,double";
static const char SIG_LOAD[] = "load";
static const char SIG_LOADED[] = "loaded";
static const char SIG_LOAD_DETAIL[] = "load,detail";
static const char SIG_LOADED_DETAIL[] = "loaded,detail";
static const char SIG_ZOOM_START[] = "zoom,start";
static const char SIG_ZOOM_STOP[] = "zoom,stop";
static const char SIG_ZOOM_CHANGE[] = "zoom,change";
static const char SIG_SCROLL[] = "scroll";
static const char SIG_SCROLL_ANIM_START[] = "scroll,anim,start";
static const char SIG_SCROLL_ANIM_STOP[] = "scroll,anim,stop";
static const char SIG_SCROLL_DRAG_START[] = "scroll,drag,start";
static const char SIG_SCROLL_DRAG_STOP[] = "scroll,drag,stop";
static const Evas_Smart_Cb_Description _signals[] = {
{SIG_CLICKED, ""},
{SIG_PRESS, ""},
{SIG_LONGPRESSED, ""},
{SIG_CLICKED_DOUBLE, ""},
{SIG_LOAD, ""},
{SIG_LOADED, ""},
{SIG_LOAD_DETAIL, ""},
{SIG_LOADED_DETAIL, ""},
{SIG_ZOOM_START, ""},
{SIG_ZOOM_STOP, ""},
{SIG_ZOOM_CHANGE, ""},
{SIG_SCROLL, ""},
{SIG_SCROLL_ANIM_START, ""},
{SIG_SCROLL_ANIM_STOP, ""},
{SIG_SCROLL_DRAG_START, ""},
{SIG_SCROLL_DRAG_STOP, ""},
{NULL, NULL}
};
static int
nearest_pow2(int num)
{
unsigned int n = num - 1;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
return n + 1;
}
static void
img_place(Evas_Object *obj, Evas_Coord px, Evas_Coord py, Evas_Coord ox, Evas_Coord oy, Evas_Coord ow, Evas_Coord oh)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord ax, ay, gw, gh;
if (!wd) return;
ax = 0;
ay = 0;
gw = wd->size.w;
gh = wd->size.h;
if (ow > gw) ax = (ow - gw) / 2;
if (oh > gh) ay = (oh - gh) / 2;
evas_object_move(wd->img, ox + 0 - px + ax, oy + 0 - py + ay);
evas_object_resize(wd->img, gw, gh);
if (wd->show.show)
{
wd->show.show = EINA_FALSE;
elm_smart_scroller_child_region_show(wd->scr, wd->show.x, wd->show.y, wd->show.w, wd->show.h);
}
}
static void
grid_place(Evas_Object *obj, Grid *g, Evas_Coord px, Evas_Coord py, Evas_Coord ox, Evas_Coord oy, Evas_Coord ow, Evas_Coord oh)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord ax, ay, gw, gh, tx, ty;
int x, y;
if (!wd) return;
ax = 0;
ay = 0;
gw = wd->size.w;
gh = wd->size.h;
if (ow > gw) ax = (ow - gw) / 2;
if (oh > gh) ay = (oh - gh) / 2;
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn, xx, yy, ww, hh;
tn = (y * g->gw) + x;
xx = g->grid[tn].out.x;
yy = g->grid[tn].out.y;
ww = g->grid[tn].out.w;
hh = g->grid[tn].out.h;
if ((gw != g->w) && (g->w > 0))
{
tx = xx;
xx = (gw * xx) / g->w;
ww = ((gw * (tx + ww)) / g->w) - xx;
}
if ((gh != g->h) && (g->h > 0))
{
ty = yy;
yy = (gh * yy) / g->h;
hh = ((gh * (ty + hh)) / g->h) - yy;
}
evas_object_move(g->grid[tn].img,
ox + xx - px + ax,
oy + yy - py + ay);
evas_object_resize(g->grid[tn].img, ww, hh);
}
}
}
static void
grid_clear(Evas_Object *obj, Grid *g)
{
Widget_Data *wd = elm_widget_data_get(obj);
int x, y;
if (!wd) return;
if (!g->grid) return;
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn;
tn = (y * g->gw) + x;
evas_object_del(g->grid[tn].img);
if (g->grid[tn].want)
{
wd->preload_num--;
if (!wd->preload_num)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
"elm,state,busy,stop", "elm");
evas_object_smart_callback_call(obj, SIG_LOAD_DETAIL, NULL);
}
}
}
}
free(g->grid);
g->grid = NULL;
g->gw = 0;
g->gh = 0;
}
static void
_tile_preloaded(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Grid_Item *git = data;
if (git->want)
{
git->want = 0;
evas_object_show(git->img);
git->have = 1;
git->wd->preload_num--;
if (!git->wd->preload_num)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(git->wd->scr),
"elm,state,busy,stop", "elm");
evas_object_smart_callback_call(git->wd->obj, SIG_LOADED_DETAIL, NULL);
}
}
}
static int
grid_zoom_calc(double zoom)
{
int z = zoom;
if (z < 1) z = 1;
return nearest_pow2(z);
}
static Grid *
grid_create(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
int x, y;
Grid *g;
if (!wd) return NULL;
g = calloc(1, sizeof(Grid));
g->zoom = grid_zoom_calc(wd->zoom);
g->tsize = wd->tsize;
g->iw = wd->size.imw;
g->ih = wd->size.imh;
g->w = g->iw / g->zoom;
g->h = g->ih / g->zoom;
if (g->zoom >= 8) return NULL;
g->gw = (g->w + g->tsize - 1) / g->tsize;
g->gh = (g->h + g->tsize - 1) / g->tsize;
g->grid = calloc(1, sizeof(Grid_Item) * g->gw * g->gh);
if (!g->grid)
{
g->gw = 0;
g->gh = 0;
return g;
}
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn;
tn = (y * g->gw) + x;
g->grid[tn].src.x = x * g->tsize;
if (x == (g->gw - 1))
g->grid[tn].src.w = g->w - ((g->gw - 1) * g->tsize);
else
g->grid[tn].src.w = g->tsize;
g->grid[tn].src.y = y * g->tsize;
if (y == (g->gh - 1))
g->grid[tn].src.h = g->h - ((g->gh - 1) * g->tsize);
else
g->grid[tn].src.h = g->tsize;
g->grid[tn].out.x = g->grid[tn].src.x;
g->grid[tn].out.y = g->grid[tn].src.y;
g->grid[tn].out.w = g->grid[tn].src.w;
g->grid[tn].out.h = g->grid[tn].src.h;
g->grid[tn].wd = wd;
g->grid[tn].img =
evas_object_image_add(evas_object_evas_get(obj));
evas_object_image_scale_hint_set
(g->grid[tn].img, EVAS_IMAGE_SCALE_HINT_DYNAMIC);
evas_object_pass_events_set(g->grid[tn].img, EINA_TRUE);
evas_object_smart_member_add(g->grid[tn].img,
wd->pan_smart);
elm_widget_sub_object_add(obj, g->grid[tn].img);
evas_object_image_filled_set(g->grid[tn].img, 1);
evas_object_event_callback_add(g->grid[tn].img,
EVAS_CALLBACK_IMAGE_PRELOADED,
_tile_preloaded,
&(g->grid[tn]));
}
}
return g;
}
static void
grid_load(Evas_Object *obj, Grid *g)
{
Widget_Data *wd = elm_widget_data_get(obj);
int x, y;
Evas_Coord ox, oy, ow, oh, cvx, cvy, cvw, cvh, gw, gh, tx, ty;
if (!wd) return;
evas_object_geometry_get(wd->pan_smart, &ox, &oy, &ow, &oh);
evas_output_viewport_get(evas_object_evas_get(wd->obj), &cvx, &cvy, &cvw, &cvh);
gw = wd->size.w;
gh = wd->size.h;
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn, xx, yy, ww, hh;
Eina_Bool visible = EINA_FALSE;
tn = (y * g->gw) + x;
xx = g->grid[tn].out.x;
yy = g->grid[tn].out.y;
ww = g->grid[tn].out.w;
hh = g->grid[tn].out.h;
if ((gw != g->w) && (g->w > 0))
{
tx = xx;
xx = (gw * xx) / g->w;
ww = ((gw * (tx + ww)) / g->w) - xx;
}
if ((gh != g->h) && (g->h > 0))
{
ty = yy;
yy = (gh * yy) / g->h;
hh = ((gh * (ty + hh)) / g->h) - yy;
}
if (ELM_RECTS_INTERSECT(xx - wd->pan_x + ox,
yy - wd->pan_y + oy,
ww, hh,
cvx, cvy, cvw, cvh))
visible = 1;
if ((visible) && (!g->grid[tn].have) && (!g->grid[tn].want))
{
g->grid[tn].want = 1;
evas_object_hide(g->grid[tn].img);
evas_object_image_file_set(g->grid[tn].img, NULL, NULL);
evas_object_image_load_scale_down_set(g->grid[tn].img, g->zoom);
evas_object_image_load_region_set(g->grid[tn].img,
g->grid[tn].src.x,
g->grid[tn].src.y,
g->grid[tn].src.w,
g->grid[tn].src.h);
evas_object_image_file_set(g->grid[tn].img, wd->file, NULL);
evas_object_image_preload(g->grid[tn].img, 0);
wd->preload_num++;
if (wd->preload_num == 1)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
"elm,state,busy,start", "elm");
evas_object_smart_callback_call(obj, SIG_LOAD_DETAIL, NULL);
}
}
else if ((g->grid[tn].want) && (!visible))
{
wd->preload_num--;
if (!wd->preload_num)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
"elm,state,busy,stop", "elm");
evas_object_smart_callback_call(obj, SIG_LOADED_DETAIL, NULL);
}
g->grid[tn].want = 0;
evas_object_hide(g->grid[tn].img);
evas_object_image_preload(g->grid[tn].img, 1);
evas_object_image_file_set(g->grid[tn].img, NULL, NULL);
}
else if ((g->grid[tn].have) && (!visible))
{
g->grid[tn].have = 0;
evas_object_hide(g->grid[tn].img);
evas_object_image_preload(g->grid[tn].img, 1);
evas_object_image_file_set(g->grid[tn].img, NULL, NULL);
}
}
}
}
static void
grid_clearall(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Grid *g;
if (!wd) return;
EINA_LIST_FREE(wd->grids, g)
{
grid_clear(obj, g);
free(g);
}
}
static void
_smooth_update(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
int x, y;
Eina_List *l;
Grid *g;
if (!wd) return;
EINA_LIST_FOREACH(wd->grids, l, g)
{
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn;
tn = (y * g->gw) + x;
evas_object_image_smooth_scale_set(g->grid[tn].img, (!wd->nosmooth));
}
}
}
evas_object_image_smooth_scale_set(wd->img, (!wd->nosmooth));
}
static void
_grid_raise(Grid *g)
{
int x, y;
for (y = 0; y < g->gh; y++)
{
for (x = 0; x < g->gw; x++)
{
int tn;
tn = (y * g->gw) + x;
evas_object_raise(g->grid[tn].img);
}
}
}
static Eina_Bool
_scr_timeout(void *data)
{
Widget_Data *wd = elm_widget_data_get(data);
if (!wd) return ECORE_CALLBACK_CANCEL;
wd->nosmooth--;
if (!wd->nosmooth) _smooth_update(data);
wd->scr_timer = NULL;
return ECORE_CALLBACK_CANCEL;
}
static void
_scr(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(data);
if (!wd) return;
if (!wd->scr_timer)
{
wd->nosmooth++;
if (wd->nosmooth == 1) _smooth_update(data);
}
if (wd->scr_timer) ecore_timer_del(wd->scr_timer);
wd->scr_timer = ecore_timer_add(0.5, _scr_timeout, data);
}
static void
_main_preloaded(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
{
Evas_Object *obj = data;
Widget_Data *wd = elm_widget_data_get(obj);
Grid *g;
if (!wd) return;
evas_object_show(wd->img);
wd->main_load_pending = 0;
g = grid_create(obj);
if (g)
{
wd->grids = eina_list_prepend(wd->grids, g);
grid_load(wd->obj, g);
}
if (wd->calc_job) ecore_job_del(wd->calc_job);
wd->calc_job = ecore_job_add(_calc_job, wd);
evas_object_smart_callback_call(data, SIG_LOADED, NULL);
wd->preload_num--;
if (!wd->preload_num)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
"elm,state,busy,stop", "elm");
evas_object_smart_callback_call(obj, SIG_LOADED_DETAIL, NULL);
}
}
static Eina_Bool
zoom_do(Evas_Object *obj, double t)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord xx, yy, ow, oh;
if (!wd) return ECORE_CALLBACK_CANCEL;
wd->size.w = (wd->size.ow * (1.0 - t)) + (wd->size.nw * t);
wd->size.h = (wd->size.oh * (1.0 - t)) + (wd->size.nh * t);
elm_smart_scroller_child_viewport_size_get(wd->scr, &ow, &oh);
xx = (wd->size.spos.x * wd->size.w) - (ow / 2);
yy = (wd->size.spos.y * wd->size.h) - (oh / 2);
if (xx < 0) xx = 0;
else if (xx > (wd->size.w - ow)) xx = wd->size.w - ow;
if (yy < 0) yy = 0;
else if (yy > (wd->size.h - oh)) yy = wd->size.h - oh;
wd->show.show = EINA_TRUE;
wd->show.x = xx;
wd->show.y = yy;
wd->show.w = ow;
wd->show.h = oh;
if (wd->calc_job) ecore_job_del(wd->calc_job);
wd->calc_job = ecore_job_add(_calc_job, wd);
if (t >= 1.0)
{
Eina_List *l, *l_next;
Grid *g;
EINA_LIST_FOREACH_SAFE(wd->grids, l, l_next, g)
{
if (g->dead)
{
wd->grids = eina_list_remove_list(wd->grids, l);
grid_clear(obj, g);
free(g);
}
}
return ECORE_CALLBACK_CANCEL;
}
return ECORE_CALLBACK_RENEW;
}
static Eina_Bool
_zoom_anim(void *data)
{
Evas_Object *obj = data;
Widget_Data *wd = elm_widget_data_get(obj);
double t;
Eina_Bool go;
if (!wd) return ECORE_CALLBACK_CANCEL;
t = ecore_loop_time_get();
if (t >= wd->t_end)
t = 1.0;
else if (wd->t_end > wd->t_start)
t = (t - wd->t_start) / (wd->t_end - wd->t_start);
else
t = 1.0;
t = 1.0 - t;
t = 1.0 - (t * t);
go = zoom_do(obj, t);
if (!go)
{
wd->nosmooth--;
if (!wd->nosmooth) _smooth_update(data);
wd->zoom_animator = NULL;
evas_object_smart_callback_call(obj, SIG_ZOOM_STOP, NULL);
}
return go;
}
static void
_mouse_move(void *data, Evas *evas __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(data);
// Evas_Event_Mouse_Move *ev = event_info;
if (!wd) return;
}
static Eina_Bool
_long_press(void *data)
{
Widget_Data *wd = elm_widget_data_get(data);
if (!wd) return ECORE_CALLBACK_CANCEL;
wd->long_timer = NULL;
wd->longpressed = EINA_TRUE;
evas_object_smart_callback_call(data, SIG_LONGPRESSED, NULL);
return ECORE_CALLBACK_CANCEL;
}
static void
_mouse_down(void *data, Evas *evas __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
{
Widget_Data *wd = elm_widget_data_get(data);
Evas_Event_Mouse_Down *ev = event_info;
if (!wd) return;
if (ev->button != 1) return;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) wd->on_hold = EINA_TRUE;
else wd->on_hold = EINA_FALSE;
if (ev->flags & EVAS_BUTTON_DOUBLE_CLICK)
evas_object_smart_callback_call(data, SIG_CLICKED_DOUBLE, NULL);
else
evas_object_smart_callback_call(data, SIG_PRESS, NULL);
wd->longpressed = EINA_FALSE;
if (wd->long_timer) ecore_timer_del(wd->long_timer);
wd->long_timer = ecore_timer_add(_elm_config->longpress_timeout, _long_press, data);
}
static void
_mouse_up(void *data, Evas *evas __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
{
Widget_Data *wd = elm_widget_data_get(data);
Evas_Event_Mouse_Up *ev = event_info;
if (!wd) return;
if (ev->button != 1) return;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) wd->on_hold = EINA_TRUE;
else wd->on_hold = EINA_FALSE;
if (wd->long_timer)
{
ecore_timer_del(wd->long_timer);
wd->long_timer = NULL;
}
if (!wd->on_hold)
evas_object_smart_callback_call(data, SIG_CLICKED, NULL);
wd->on_hold = EINA_FALSE;
}
static Evas_Smart_Class _pan_sc = EVAS_SMART_CLASS_INIT_NULL;
static void
_del_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Grid *g;
if (!wd) return;
EINA_LIST_FREE(wd->grids, g)
{
if (g->grid) free(g->grid);
free(g);
}
evas_object_del(wd->pan_smart);
wd->pan_smart = NULL;
if (wd->file) eina_stringshare_del(wd->file);
if (wd->calc_job) ecore_job_del(wd->calc_job);
if (wd->scr_timer) ecore_timer_del(wd->scr_timer);
if (wd->zoom_animator) ecore_animator_del(wd->zoom_animator);
if (wd->long_timer) ecore_timer_del(wd->long_timer);
free(wd);
}
static void
_on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (elm_widget_focus_get(obj))
{
edje_object_signal_emit(wd->obj, "elm,action,focus", "elm");
evas_object_focus_set(wd->obj, EINA_TRUE);
}
else
{
edje_object_signal_emit(wd->obj, "elm,action,unfocus", "elm");
evas_object_focus_set(wd->obj, EINA_FALSE);
}
}
static void
_theme_hook(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_object_theme_set(obj, wd->scr, "photocam", "base", elm_widget_style_get(obj));
// edje_object_scale_set(wd->scr, elm_widget_scale_get(obj) * _elm_config->scale);
_sizing_eval(obj);
}
/*
static void
_show_region_hook(void *data, Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(data);
Evas_Coord x, y, w, h;
if (!wd) return;
elm_widget_show_region_get(obj, &x, &y, &w, &h);
elm_smart_scroller_child_region_show(wd->scr, x, y, w, h);
}
*/
static void
_sizing_eval(Evas_Object *obj)
{
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
if (!wd) return;
// evas_object_size_hint_min_get(wd->scr, &minw, &minh);
evas_object_size_hint_max_get(wd->scr, &maxw, &maxh);
// minw = -1;
// minh = -1;
// if (wd->mode != ELM_LIST_LIMIT) minw = -1;
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_size_hint_max_set(obj, maxw, maxh);
}
static void
_calc_job(void *data)
{
Widget_Data *wd = data;
Evas_Coord minw, minh;
if (!wd) return;
minw = wd->size.w;
minh = wd->size.h;
if (wd->resized)
{
wd->resized = 0;
if (wd->mode != ELM_PHOTOCAM_ZOOM_MODE_MANUAL)
{
double tz = wd->zoom;
wd->zoom = 0.0;
elm_photocam_zoom_set(wd->obj, tz);
}
}
if ((minw != wd->minw) || (minh != wd->minh))
{
wd->minw = minw;
wd->minh = minh;
evas_object_smart_callback_call(wd->pan_smart, "changed", NULL);
_sizing_eval(wd->obj);
}
wd->calc_job = NULL;
evas_object_smart_changed(wd->pan_smart);
}
static void
_pan_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
{
Pan *sd = evas_object_smart_data_get(obj);
if (!sd) return;
if ((x == sd->wd->pan_x) && (y == sd->wd->pan_y)) return;
sd->wd->pan_x = x;
sd->wd->pan_y = y;
evas_object_smart_changed(obj);
}
static void
_pan_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
{
Pan *sd = evas_object_smart_data_get(obj);
if (!sd) return;
if (x) *x = sd->wd->pan_x;
if (y) *y = sd->wd->pan_y;
}
static void
_pan_max_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
{
Pan *sd = evas_object_smart_data_get(obj);
Evas_Coord ow, oh;
if (!sd) return;
evas_object_geometry_get(obj, NULL, NULL, &ow, &oh);
ow = sd->wd->minw - ow;
if (ow < 0) ow = 0;
oh = sd->wd->minh - oh;
if (oh < 0) oh = 0;
if (x) *x = ow;
if (y) *y = oh;
}
static void
_pan_min_get(Evas_Object *obj __UNUSED__, Evas_Coord *x, Evas_Coord *y)
{
if (x) *x = 0;
if (y) *y = 0;
}
static void
_pan_child_size_get(Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
{
Pan *sd = evas_object_smart_data_get(obj);
if (!sd) return;
if (w) *w = sd->wd->minw;
if (h) *h = sd->wd->minh;
}
static void
_pan_add(Evas_Object *obj)
{
Pan *sd;
Evas_Object_Smart_Clipped_Data *cd;
_pan_sc.add(obj);
cd = evas_object_smart_data_get(obj);
if (!cd) return;
sd = calloc(1, sizeof(Pan));
if (!sd) return;
sd->__clipped_data = *cd;
free(cd);
evas_object_smart_data_set(obj, sd);
}
static void
_pan_del(Evas_Object *obj)
{
Pan *sd = evas_object_smart_data_get(obj);
if (!sd) return;
_pan_sc.del(obj);
}
static void
_pan_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
{
Pan *sd = evas_object_smart_data_get(obj);
Evas_Coord ow, oh;
if (!sd) return;
evas_object_geometry_get(obj, NULL, NULL, &ow, &oh);
if ((ow == w) && (oh == h)) return;
sd->wd->resized = 1;
if (sd->wd->calc_job) ecore_job_del(sd->wd->calc_job);
sd->wd->calc_job = ecore_job_add(_calc_job, sd->wd);
}
static void
_pan_calculate(Evas_Object *obj)
{
Pan *sd = evas_object_smart_data_get(obj);
Evas_Coord ox, oy, ow, oh;
Eina_List *l;
Grid *g;
if (!sd) return;
evas_object_geometry_get(obj, &ox, &oy, &ow, &oh);
img_place(sd->wd->obj, sd->wd->pan_x, sd->wd->pan_y, ox, oy, ow, oh);
EINA_LIST_FOREACH(sd->wd->grids, l, g)
{
grid_load(sd->wd->obj, g);
grid_place(sd->wd->obj, g, sd->wd->pan_x, sd->wd->pan_y, ox, oy, ow, oh);
}
}
static void
_pan_move(Evas_Object *obj, Evas_Coord x __UNUSED__, Evas_Coord y __UNUSED__)
{
Pan *sd = evas_object_smart_data_get(obj);
if (!sd) return;
if (sd->wd->calc_job) ecore_job_del(sd->wd->calc_job);
sd->wd->calc_job = ecore_job_add(_calc_job, sd->wd);
}
static void
_hold_on(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_hold_set(wd->scr, 1);
}
static void
_hold_off(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_hold_set(wd->scr, 0);
}
static void
_freeze_on(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_freeze_set(wd->scr, 1);
}
static void
_freeze_off(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_freeze_set(wd->scr, 0);
}
static void
_scr_anim_start(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_START, NULL);
}
static void
_scr_anim_stop(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_STOP, NULL);
}
static void
_scr_drag_start(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_START, NULL);
}
static void
_scr_drag_stop(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_STOP, NULL);
}
static void
_scr_scroll(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
evas_object_smart_callback_call(data, SIG_SCROLL, NULL);
}
static Eina_Bool
_event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__,
Evas_Callback_Type type, void *event_info)
{
double zoom;
if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
Evas_Event_Key_Down *ev = event_info;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
Evas_Coord x = 0;
Evas_Coord y = 0;
Evas_Coord step_x = 0;
Evas_Coord step_y = 0;
Evas_Coord v_w = 0;
Evas_Coord v_h = 0;
Evas_Coord page_x = 0;
Evas_Coord page_y = 0;
elm_smart_scroller_child_pos_get(wd->scr, &x, &y);
elm_smart_scroller_step_size_get(wd->scr, &step_x, &step_y);
elm_smart_scroller_page_size_get(wd->scr, &page_x, &page_y);
elm_smart_scroller_child_viewport_size_get(wd->scr, &v_w, &v_h);
if ((!strcmp(ev->keyname, "Left")) ||
(!strcmp(ev->keyname, "KP_Left")))
{
x -= step_x;
}
else if ((!strcmp(ev->keyname, "Right")) ||
(!strcmp(ev->keyname, "KP_Right")))
{
x += step_x;
}
else if ((!strcmp(ev->keyname, "Up")) ||
(!strcmp(ev->keyname, "KP_Up")))
{
y -= step_y;
}
else if ((!strcmp(ev->keyname, "Down")) ||
(!strcmp(ev->keyname, "KP_Down")))
{
y += step_y;
}
else if ((!strcmp(ev->keyname, "Prior")) ||
(!strcmp(ev->keyname, "KP_Prior")))
{
if (page_y < 0)
y -= -(page_y * v_h) / 100;
else
y -= page_y;
}
else if ((!strcmp(ev->keyname, "Next")) ||
(!strcmp(ev->keyname, "KP_Next")))
{
if (page_y < 0)
y += -(page_y * v_h) / 100;
else
y += page_y;
}
else if ((!strcmp(ev->keyname, "KP_Add")))
{
zoom = elm_photocam_zoom_get(obj);
zoom -= 0.5;
elm_photocam_zoom_mode_set(obj, ELM_PHOTOCAM_ZOOM_MODE_MANUAL);
elm_photocam_zoom_set(obj, zoom);
return EINA_TRUE;
}
else if ((!strcmp(ev->keyname, "KP_Subtract")))
{
zoom = elm_photocam_zoom_get(obj);
zoom += 0.5;
elm_photocam_zoom_mode_set(obj, ELM_PHOTOCAM_ZOOM_MODE_MANUAL);
elm_photocam_zoom_set(obj, zoom);
return EINA_TRUE;
}
else return EINA_FALSE;
ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
elm_smart_scroller_child_pos_set(wd->scr, x, y);
return EINA_TRUE;
}
/**
* Add a new Photocam object
*
* @param parent The parent object
* @return The new object or NULL if it cannot be created
*
* @ingroup Photocam
*/
EAPI Evas_Object *
elm_photocam_add(Evas_Object *parent)
{
Evas_Object *obj;
Evas *e;
Widget_Data *wd;
Evas_Coord minw, minh;
static Evas_Smart *smart = NULL;
Eina_Bool bounce = _elm_config->thumbscroll_bounce_enable;
ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
ELM_SET_WIDTYPE(widtype, "photocam");
elm_widget_type_set(obj, "photocam");
elm_widget_sub_object_add(parent, obj);
elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
elm_widget_data_set(obj, wd);
elm_widget_del_hook_set(obj, _del_hook);
elm_widget_theme_hook_set(obj, _theme_hook);
elm_widget_can_focus_set(obj, EINA_TRUE);
elm_widget_event_hook_set(obj, _event_hook);
wd->scr = elm_smart_scroller_add(e);
elm_smart_scroller_widget_set(wd->scr, obj);
elm_smart_scroller_object_theme_set(obj, wd->scr, "photocam", "base", "default");
evas_object_smart_callback_add(wd->scr, "scroll", _scr, obj);
evas_object_smart_callback_add(wd->scr, "drag", _scr, obj);
elm_widget_resize_object_set(obj, wd->scr);
evas_object_smart_callback_add(wd->scr, "animate,start", _scr_anim_start, obj);
evas_object_smart_callback_add(wd->scr, "animate,stop", _scr_anim_stop, obj);
evas_object_smart_callback_add(wd->scr, "drag,start", _scr_drag_start, obj);
evas_object_smart_callback_add(wd->scr, "drag,stop", _scr_drag_stop, obj);
evas_object_smart_callback_add(wd->scr, "scroll", _scr_scroll, obj);
elm_smart_scroller_bounce_allow_set(wd->scr, bounce, bounce);
wd->obj = obj;
evas_object_smart_callback_add(obj, "scroll-hold-on", _hold_on, obj);
evas_object_smart_callback_add(obj, "scroll-hold-off", _hold_off, obj);
evas_object_smart_callback_add(obj, "scroll-freeze-on", _freeze_on, obj);
evas_object_smart_callback_add(obj, "scroll-freeze-off", _freeze_off, obj);
if (!smart)
{
static Evas_Smart_Class sc;
evas_object_smart_clipped_smart_set(&_pan_sc);
sc = _pan_sc;
sc.name = "elm_photocam_pan";
sc.version = EVAS_SMART_CLASS_VERSION;
sc.add = _pan_add;
sc.del = _pan_del;
sc.resize = _pan_resize;
sc.move = _pan_move;
sc.calculate = _pan_calculate;
smart = evas_smart_class_new(&sc);
}
if (smart)
{
wd->pan_smart = evas_object_smart_add(e, smart);
wd->pan = evas_object_smart_data_get(wd->pan_smart);
wd->pan->wd = wd;
}
elm_smart_scroller_extern_pan_set(wd->scr, wd->pan_smart,
_pan_set, _pan_get, _pan_max_get,
_pan_min_get, _pan_child_size_get);
wd->zoom = 1;
wd->mode = ELM_PHOTOCAM_ZOOM_MODE_MANUAL;
wd->tsize = 512;
wd->img = evas_object_image_add(e);
evas_object_image_scale_hint_set(wd->img, EVAS_IMAGE_SCALE_HINT_DYNAMIC);
evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_DOWN,
_mouse_down, obj);
evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_UP,
_mouse_up, obj);
evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_MOVE,
_mouse_move, obj);
evas_object_image_scale_hint_set(wd->img, EVAS_IMAGE_SCALE_HINT_STATIC);
evas_object_smart_member_add(wd->img, wd->pan_smart);
elm_widget_sub_object_add(obj, wd->img);
evas_object_image_filled_set(wd->img, 1);
evas_object_event_callback_add(wd->img, EVAS_CALLBACK_IMAGE_PRELOADED,
_main_preloaded, obj);
edje_object_size_min_calc(elm_smart_scroller_edje_object_get(wd->scr),
&minw, &minh);
evas_object_size_hint_min_set(obj, minw, minh);
evas_object_smart_callbacks_descriptions_set(obj, _signals);
_sizing_eval(obj);
return obj;
}
/**
* Set the photo file to be shown
*
* This sets (and shows) the specified file (with a relative or absolute path)
* and will return a load error (same error that
* evas_object_image_load_error_get() will return). The image will change and
* adjust its size at this point and begin a background load process for this
* photo that at some time in the future will be displayed at the full quality
* needed.
*
* @param obj The photocam object
* @param file The photo file
* @return The return error (see EVAS_LOAD_ERROR_NONE, EVAS_LOAD_ERROR_GENERIC etc.)
*
* @ingroup Photocam
*/
EAPI Evas_Load_Error
elm_photocam_file_set(Evas_Object *obj, const char *file)
{
ELM_CHECK_WIDTYPE(obj, widtype) EVAS_LOAD_ERROR_NONE;
Widget_Data *wd = elm_widget_data_get(obj);
int w, h;
if (!wd) return EVAS_LOAD_ERROR_GENERIC;
if (!eina_stringshare_replace(&wd->file, file)) return EVAS_LOAD_ERROR_NONE;
grid_clearall(obj);
evas_object_hide(wd->img);
evas_object_image_smooth_scale_set(wd->img, (wd->nosmooth == 0));
evas_object_image_file_set(wd->img, NULL, NULL);
evas_object_image_load_scale_down_set(wd->img, 0);
evas_object_image_file_set(wd->img, wd->file, NULL);
evas_object_image_size_get(wd->img, &w, &h);
wd->size.imw = w;
wd->size.imh = h;
wd->size.w = wd->size.imw / wd->zoom;
wd->size.h = wd->size.imh / wd->zoom;
if (wd->zoom_animator)
{
wd->nosmooth--;
if (wd->nosmooth == 0) _smooth_update(obj);
ecore_animator_del(wd->zoom_animator);
wd->zoom_animator = NULL;
}
evas_object_image_file_set(wd->img, NULL, NULL);
evas_object_image_load_scale_down_set(wd->img, 8);
evas_object_image_file_set(wd->img, wd->file, NULL);
evas_object_image_preload(wd->img, 0);
wd->main_load_pending = 1;
if (wd->calc_job) ecore_job_del(wd->calc_job);
wd->calc_job = ecore_job_add(_calc_job, wd);
evas_object_smart_callback_call(obj, SIG_LOAD, NULL);
wd->preload_num++;
if (wd->preload_num == 1)
{
edje_object_signal_emit(elm_smart_scroller_edje_object_get(wd->scr),
"elm,state,busy,start", "elm");
evas_object_smart_callback_call(obj, SIG_LOAD_DETAIL, NULL);
}
{
double tz = wd->zoom;
wd->zoom = 0.0;
elm_photocam_zoom_set(wd->obj, tz);
}
return evas_object_image_load_error_get(wd->img);
}
/*
* Returns the path of the current image file
*
* @param obj The photocam object
* @return Returns the path
*
* @ingroup Photocam
*/
EAPI const char *
elm_photocam_file_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return wd->file;
}
/**
* Set the zoom level of the photo
*
* This sets the zoom level. 1 will be 1:1 pixel for pixel. 2 will be 2:1
* (that is 2x2 photo pixels will display as 1 on-screen pixel). 4:1 will be
* 4x4 photo pixels as 1 screen pixel, and so on. The @p zoom parameter must
* be greater than 0. It is usggested to stick to powers of 2. (1, 2, 4, 8,
* 16, 32, etc.).
*
* @param obj The photocam object
* @param zoom The zoom level to set
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_zoom_set(Evas_Object *obj, double zoom)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
Eina_List *l;
Grid *g, *g_zoom = NULL;
Evas_Coord pw, ph, rx, ry, rw, rh;
int z;
int zoom_changed = 0, started = 0;
Ecore_Animator *an;
if (!wd) return;
if (zoom <= (1.0 / 256.0)) zoom = (1.0 / 256.0);
if (zoom == wd->zoom) return;
wd->zoom = zoom;
wd->size.ow = wd->size.w;
wd->size.oh = wd->size.h;
elm_smart_scroller_child_pos_get(wd->scr, &rx, &ry);
elm_smart_scroller_child_viewport_size_get(wd->scr, &rw, &rh);
if ((rw <= 0) || (rh <= 0)) return;
if (wd->mode == ELM_PHOTOCAM_ZOOM_MODE_MANUAL)
{
wd->size.nw = (double)wd->size.imw / wd->zoom;
wd->size.nh = (double)wd->size.imh / wd->zoom;
}
else if (wd->mode == ELM_PHOTOCAM_ZOOM_MODE_AUTO_FIT)
{
if ((wd->size.imw < 1) || (wd->size.imh < 1))
{
wd->size.nw = 0;
wd->size.nw = 0;
}
else
{
ph = (wd->size.imh * rw) / wd->size.imw;
if (ph > rh)
{
pw = (wd->size.imw * rh) / wd->size.imh;
ph = rh;
}
else
{
pw = rw;
}
if (wd->size.imw > wd->size.imh)
z = wd->size.imw / pw;
else
z = wd->size.imh / ph;
if (z >= 8) z = 8;
else if (z >= 4) z = 4;
else if (z >= 2) z = 2;
else z = 1;
if (z != wd->zoom) zoom_changed = 1;
wd->zoom = z;
wd->size.nw = pw;
wd->size.nh = ph;
}
}
else if (wd->mode == ELM_PHOTOCAM_ZOOM_MODE_AUTO_FILL)
{
if ((wd->size.imw < 1) || (wd->size.imh < 1))
{
wd->size.nw = 0;
wd->size.nw = 0;
}
else
{
ph = (wd->size.imh * rw) / wd->size.imw;
if (ph < rh)
{
pw = (wd->size.imw * rh) / wd->size.imh;
ph = rh;
}
else
{
pw = rw;
}
if (wd->size.imw > wd->size.imh)
z = wd->size.imw / pw;
else
z = wd->size.imh / ph;
if (z >= 8) z = 8;
else if (z >= 4) z = 4;
else if (z >= 2) z = 2;
else z = 1;
if (z != wd->zoom) zoom_changed = 1;
wd->zoom = z;
wd->size.nw = pw;
wd->size.nh = ph;
}
}
if (wd->main_load_pending)
{
wd->size.w = wd->size.nw;
wd->size.h = wd->size.nh;
goto done;
}
EINA_LIST_FOREACH(wd->grids, l, g)
{
if (g->zoom == grid_zoom_calc(wd->zoom))
{
wd->grids = eina_list_remove(wd->grids, g);
wd->grids = eina_list_prepend(wd->grids, g);
_grid_raise(g);
goto done;
}
}
g = grid_create(obj);
if (g)
{
if (eina_list_count(wd->grids) > 1)
{
g_zoom = eina_list_last(wd->grids)->data;
wd->grids = eina_list_remove(wd->grids, g_zoom);
grid_clear(obj, g_zoom);
free(g_zoom);
EINA_LIST_FOREACH(wd->grids, l, g_zoom)
{
g_zoom->dead = 1;
}
}
wd->grids = eina_list_prepend(wd->grids, g);
}
else
{
EINA_LIST_FREE(wd->grids, g)
{
grid_clear(obj, g);
free(g);
}
}
done:
wd->t_start = ecore_loop_time_get();
wd->t_end = wd->t_start + _elm_config->zoom_friction;
if ((wd->size.w > 0) && (wd->size.h > 0))
{
wd->size.spos.x = (double)(rx + (rw / 2)) / (double)wd->size.w;
wd->size.spos.y = (double)(ry + (rh / 2)) / (double)wd->size.h;
}
else
{
wd->size.spos.x = 0.5;
wd->size.spos.y = 0.5;
}
if (rw > wd->size.w) wd->size.spos.x = 0.5;
if (rh > wd->size.h) wd->size.spos.y = 0.5;
if (wd->size.spos.x > 1.0) wd->size.spos.x = 1.0;
if (wd->size.spos.y > 1.0) wd->size.spos.y = 1.0;
if (wd->paused)
{
zoom_do(obj, 1.0);
}
else
{
if (!wd->zoom_animator)
{
wd->zoom_animator = ecore_animator_add(_zoom_anim, obj);
wd->nosmooth++;
if (wd->nosmooth == 1) _smooth_update(obj);
started = 1;
}
}
an = wd->zoom_animator;
if (an)
{
if (!_zoom_anim(obj))
{
ecore_animator_del(an);
an = NULL;
}
}
if (wd->calc_job) ecore_job_del(wd->calc_job);
wd->calc_job = ecore_job_add(_calc_job, wd);
if (!wd->paused)
{
if (started)
evas_object_smart_callback_call(obj, SIG_ZOOM_START, NULL);
if (!an)
evas_object_smart_callback_call(obj, SIG_ZOOM_STOP, NULL);
}
if (zoom_changed)
evas_object_smart_callback_call(obj, SIG_ZOOM_CHANGE, NULL);
}
/**
* Get the zoom level of the photo
*
* This returns the current zoom level of the photocam object. Note that if
* you set the fill mode to other than ELM_PHOTOCAM_ZOOM_MODE_MANUAL
* (which is the default), the zoom level may be changed at any time by the
* photocam object itself to account for photo size and photocam viewpoer size
*
* @param obj The photocam object
* @return The current zoom level
*
* @ingroup Photocam
*/
EAPI double
elm_photocam_zoom_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) 1.0;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return 1.0;
return wd->zoom;
}
/**
* Set the zoom mode
*
* This sets the zoom mode to manual or one of several automatic levels.
* Manual (ELM_PHOTOCAM_ZOOM_MODE_MANUAL) means that zoom is set manually by
* elm_photocam_zoom_set() and will stay at that level until changed by code
* or until zoom mode is changed. This is the default mode.
* The Automatic modes will allow the photocam object to automatically
* adjust zoom mode based on properties. ELM_PHOTOCAM_ZOOM_MODE_AUTO_FIT) will
* adjust zoom so the photo fits EXACTLY inside the scroll frame with no pixels
* outside this area. ELM_PHOTOCAM_ZOOM_MODE_AUTO_FILL will be similar but
* ensure no pixels within the frame are left unfilled.
*
* @param obj The photocam object
* @param mode The desired mode
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_zoom_mode_set(Evas_Object *obj, Elm_Photocam_Zoom_Mode mode)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->mode == mode) return;
wd->mode = mode;
{
double tz = wd->zoom;
wd->zoom = 0.0;
elm_photocam_zoom_set(wd->obj, tz);
}
}
/**
* Get the zoom mode
*
* This gets the current zoom mode of the photocam object
*
* @param obj The photocam object
* @return The current zoom mode
*
* @ingroup Photocam
*/
EAPI Elm_Photocam_Zoom_Mode
elm_photocam_zoom_mode_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) ELM_PHOTOCAM_ZOOM_MODE_LAST;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return ELM_PHOTOCAM_ZOOM_MODE_LAST;
return wd->mode;
}
/**
* Get the current image pixel width and height
*
* This gets the current photo pixel width and height (for the original).
* The size will be returned in the integers @p w and @p h that are pointed
* to.
*
* @param obj The photocam object
* @param w A pointer to the width return
* @param h A pointer to the height return
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_image_size_get(const Evas_Object *obj, int *w, int *h)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (w) *w = wd->size.imw;
if (h) *h = wd->size.imh;
}
/**
* Get the current area of the image that is currently shown
*
* This gets the region
*
*/
EAPI void
elm_photocam_region_get(const Evas_Object *obj, int *x, int *y, int *w, int *h)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
Evas_Coord sx, sy, sw, sh;
if (!wd) return;
elm_smart_scroller_child_pos_get(wd->scr, &sx, &sy);
elm_smart_scroller_child_viewport_size_get(wd->scr, &sw, &sh);
if (wd->size.w > 0)
{
if (x)
{
*x = (wd->size.imw * sx) / wd->size.w;
if (*x > wd->size.imw) *x = wd->size.imw;
else if (*x < 0) *x = 0;
}
if (w)
{
*w = (wd->size.imw * sw) / wd->size.w;
if (*w > wd->size.imw) *w = wd->size.imw;
else if (*w < 0) *w = 0;
}
}
else
{
if (x) *x = 0;
if (w) *w = 0;
}
if (wd->size.h > 0)
{
if (y)
{
*y = (wd->size.imh * sy) / wd->size.h;
if (*y > wd->size.imh) *y = wd->size.imh;
else if (*y < 0) *y = 0;
}
if (h)
{
*h = (wd->size.imh * sh) / wd->size.h;
if (*h > wd->size.imh) *h = wd->size.imh;
else if (*h < 0) *h = 0;
}
}
else
{
if (y) *y = 0;
if (h) *h = 0;
}
}
/**
* Set the viewed portion of the image
*
* This sets the region of the image to be viewed
*
* @param obj The photocam object
* @param x X-coordinate of region in image original pixels
* @param y Y-coordinate of region in image original pixels
* @param w Width of region in image original pixels
* @param h Height of region in image original pixels
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_image_region_show(Evas_Object *obj, int x, int y, int w, int h __UNUSED__)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
int rx, ry, rw, rh;
if (!wd) return;
if ((wd->size.imw < 1) || (wd->size.imh < 1)) return;
rx = (x * wd->size.w) / wd->size.imw;
ry = (y * wd->size.h) / wd->size.imh;
rw = (w * wd->size.w) / wd->size.imw;
rh = (w * wd->size.h) / wd->size.imh;
if (rw < 1) rw = 1;
if (rh < 1) rh = 1;
if ((rx + rw) > wd->size.w) rx = wd->size.w - rw;
if ((ry + rh) > wd->size.h) ry = wd->size.h - rh;
if (wd->zoom_animator)
{
wd->nosmooth--;
ecore_animator_del(wd->zoom_animator);
wd->zoom_animator = NULL;
zoom_do(obj, 1.0);
evas_object_smart_callback_call(obj, SIG_ZOOM_STOP, NULL);
}
elm_smart_scroller_child_region_show(wd->scr, rx, ry, rw, rh);
}
/**
* Bring in the viewed portion of the image
*
* This brings in the region of the image over time
*
* @param obj The photocam object
* @param x X-coordinate of region in image original pixels
* @param y Y-coordinate of region in image original pixels
* @param w Width of region in image original pixels
* @param h Height of region in image original pixels
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_image_region_bring_in(Evas_Object *obj, int x, int y, int w, int h __UNUSED__)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
int rx, ry, rw, rh;
if (!wd) return;
if ((wd->size.imw < 1) || (wd->size.imh < 1)) return;
rx = (x * wd->size.w) / wd->size.imw;
ry = (y * wd->size.h) / wd->size.imh;
rw = (w * wd->size.w) / wd->size.imw;
rh = (w * wd->size.h) / wd->size.imh;
if (rw < 1) rw = 1;
if (rh < 1) rh = 1;
if ((rx + rw) > wd->size.w) rx = wd->size.w - rw;
if ((ry + rh) > wd->size.h) ry = wd->size.h - rh;
if (wd->zoom_animator)
{
wd->nosmooth--;
if (!wd->nosmooth) _smooth_update(obj);
ecore_animator_del(wd->zoom_animator);
wd->zoom_animator = NULL;
zoom_do(obj, 1.0);
evas_object_smart_callback_call(obj, SIG_ZOOM_STOP, NULL);
}
elm_smart_scroller_region_bring_in(wd->scr, rx, ry, rw, rh);
}
/**
* Set the paused state for photocam
*
* This sets the paused state to on (1) or off (0) for photocam. The default
* is on. This will stop zooming using animation ch change zoom levels and
* change instantly. This will stop any existing animations that are running.
*
* @param obj The photocam object
* @param paused The pause state to set
*
* @ingroup Photocam
*/
EAPI void
elm_photocam_paused_set(Evas_Object *obj, Eina_Bool paused)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
if (wd->paused == !!paused) return;
wd->paused = paused;
if (wd->paused)
{
if (wd->zoom_animator)
{
ecore_animator_del(wd->zoom_animator);
wd->zoom_animator = NULL;
zoom_do(obj, 1.0);
evas_object_smart_callback_call(obj, SIG_ZOOM_STOP, NULL);
}
}
}
/**
* Get the paused state for photocam
*
* This gets the current paused state for the photocam object.
*
* @param obj The photocam object
* @return The current paused state
*
* @ingroup Photocam
*/
EAPI Eina_Bool
elm_photocam_paused_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return EINA_FALSE;
return wd->paused;
}
/**
* Get the internal low-res image used for photocam
*
* This gets the internal image object inside photocam. Do not modify it. It
* is for inspection only, and hooking callbacks to. Nothing else. It may be
* deleted at any time as well.
*
* @param obj The photocam object
* @return The internal image object handle, or NULL if none exists
*
* @ingroup Photocam
*/
EAPI Evas_Object *
elm_photocam_internal_image_get(const Evas_Object *obj)
{
ELM_CHECK_WIDTYPE(obj, widtype) NULL;
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return NULL;
return wd->img;
}
/**
* Set the photocam scrolling bouncing.
*
* @param obj The photocam object
* @param h_bounce bouncing for horizontal
* @param v_bounce bouncing for vertical
* @ingroup Photocam
*/
EAPI void
elm_photocam_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_bounce_allow_set(wd->scr, h_bounce, v_bounce);
}
/**
* Get the photocam scrolling bouncing.
*
* @param obj The photocam object
* @param h_bounce bouncing for horizontal
* @param v_bounce bouncing for vertical
* @ingroup Photocam
*/
EAPI void
elm_photocam_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
{
ELM_CHECK_WIDTYPE(obj, widtype);
Widget_Data *wd = elm_widget_data_get(obj);
if (!wd) return;
elm_smart_scroller_bounce_allow_get(wd->scr, h_bounce, v_bounce);
}
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