elm_photocam: add API's to change photocam image orientation

Summary:
Added API's to rotate(90, 180, 270), flip(horizontal, vertical), transpose and transverse Photocam Image.

Signed-off-by: kabeer khan <kabeer.khan@samsung.com>

Reviewers: seoz, stephenmhouston, raster, cedric

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D1541

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>

legacy/elementary/src/bin/test_photocam.c

@@ -3,12 +3,38 @@
 #endif
 #include <Elementary.h>
 
+static const struct {
+ Evas_Image_Orient orient;
+ const char *name;
+} photocam_orient[] = {
+ { EVAS_IMAGE_ORIENT_NONE, "None" },
+ { EVAS_IMAGE_ORIENT_90, "Rotate 90" },
+ { EVAS_IMAGE_ORIENT_180, "Rotate 180" },
+ { EVAS_IMAGE_ORIENT_270, "Rotate 270" },
+ { EVAS_IMAGE_FLIP_HORIZONTAL, "Horizontal Flip" },
+ { EVAS_IMAGE_FLIP_VERTICAL, "Vertical Flip" },
+ { EVAS_IMAGE_FLIP_TRANSPOSE, "Transpose" },
+ { EVAS_IMAGE_FLIP_TRANSVERSE, "Transverse" },
+ { 0, NULL }
+};
+
 static void
 my_ph_clicked(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
    printf("clicked\n");
 }
 
+static void
+my_ph_ch(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
+{
+    Evas_Object *photocam = data;
+    Evas_Image_Orient orient = elm_radio_value_get(obj);
+
+    elm_photocam_image_orient_set(photocam, orient);
+    fprintf(stderr, "Set %i and got %i\n",
+            orient, elm_photocam_image_orient_get(photocam));
+}
+
 static void
 my_ph_press(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
@@ -254,9 +280,9 @@ _photocam_move_resize_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj, void
 void
 test_photocam(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
-   Evas_Object *win, *ph, *tb2, *bt, *box;
+   Evas_Object *win, *ph, *tb2, *bt, *box, *rd, *rdg = NULL;
+   int i;
    Evas_Object *rect = NULL;
-
    win = elm_win_util_standard_add("photocam", "PhotoCam");
    elm_win_autodel_set(win, EINA_TRUE);
 
@@ -387,6 +413,27 @@ test_photocam(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_
    elm_box_pack_end(box, bt);
    evas_object_show(bt);
 
+   box = elm_box_add(tb2);
+   elm_box_horizontal_set(box, EINA_TRUE);
+   evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   evas_object_size_hint_align_set(box, 0.9, 0.9);
+   elm_table_pack(tb2, box, 1, 2, 1, 1);
+   evas_object_show(box);
+
+   for (i = 0; photocam_orient[i].name; ++i)
+     {
+        rd = elm_radio_add(win);
+        evas_object_size_hint_weight_set(rd, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+        elm_radio_state_value_set(rd, photocam_orient[i].orient);
+        elm_object_text_set(rd, photocam_orient[i].name);
+        elm_box_pack_end(box, rd);
+        evas_object_show(rd);
+        evas_object_smart_callback_add(rd, "changed", my_ph_ch, ph);
+        if (!rdg)
+          rdg = rd;
+        else
+          elm_radio_group_add(rd, rdg);
+     }
    evas_object_show(box);
    evas_object_show(tb2);
 
@@ -397,10 +444,12 @@ test_photocam(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_
 void
 test_photocam_remote(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
-   Evas_Object *win, *ph, *tb2, *bt, *box, *pb;
+   Evas_Object *win, *ph, *tb2, *bt, *box, *pb, *rd;
+   Evas_Object *rdg = NULL;
    Evas_Object *rect = NULL;
    // these were just testing - use the "select photo" browser to select one
    static const char *url = "http://eoimages.gsfc.nasa.gov/images/imagerecords/73000/73751/world.topo.bathy.200407.3x21600x10800.jpg";
+   int i;
 
    win = elm_win_util_standard_add("photocam", "PhotoCam");
    elm_win_autodel_set(win, EINA_TRUE);
@@ -535,6 +584,27 @@ test_photocam_remote(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void
    elm_box_pack_end(box, bt);
    evas_object_show(bt);
 
+   box = elm_box_add(tb2);
+   elm_box_horizontal_set(box, EINA_TRUE);
+   evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   evas_object_size_hint_align_set(box, 0.9, 0.9);
+   elm_table_pack(tb2, box, 1, 2, 1, 1);
+   evas_object_show(box);
+
+   for (i = 0; photocam_orient[i].name; ++i)
+     {
+        rd = elm_radio_add(win);
+        evas_object_size_hint_weight_set(rd, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+        elm_radio_state_value_set(rd, photocam_orient[i].orient);
+        elm_object_text_set(rd, photocam_orient[i].name);
+        elm_box_pack_end(box, rd);
+        evas_object_show(rd);
+        evas_object_smart_callback_add(rd, "changed", my_ph_ch, ph);
+        if (!rdg)
+          rdg = rd;
+        else
+          elm_radio_group_add(rd, rdg);
+     }
    evas_object_show(box);
    evas_object_show(tb2);
 

legacy/elementary/src/lib/elm_photocam.c

@@ -580,6 +580,7 @@ _grid_create(Evas_Object *obj)
              g->grid[tn].img =
                evas_object_image_add(evas_object_evas_get(obj));
              evas_object_image_load_orientation_set(g->grid[tn].img, EINA_TRUE);
+             evas_object_image_orient_set(g->grid[tn].img, sd->orient);
              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);
@@ -1275,6 +1276,67 @@ _g_layer_zoom_end_cb(void *data,
    return EVAS_EVENT_FLAG_NONE;
 }
 
+static void
+_orient_do(Evas_Object *obj, Elm_Photocam_Data *sd)
+{
+   evas_object_smart_member_del(sd->img);
+   elm_widget_sub_object_del(obj, sd->img);
+   evas_object_smart_member_add(sd->img, sd->pan_obj);
+   elm_widget_sub_object_add(obj, sd->img);
+   ecore_job_del(sd->calc_job);
+   sd->calc_job = ecore_job_add(_calc_job_cb, obj);
+}
+
+EOLIAN static void
+_elm_photocam_image_orient_set(Eo *obj, Elm_Photocam_Data *sd, Evas_Image_Orient orient)
+{
+   int iw, ih;
+   Eina_List *l;
+   Elm_Phocam_Grid *g, *g_orient = NULL;
+
+   if (sd->orient == orient) return;
+
+   sd->orient = orient;
+   g = _grid_create(obj);
+   if (g)
+     {
+        if (eina_list_count(sd->grids) > 1)
+          {
+             g_orient = eina_list_last(sd->grids)->data;
+             sd->grids = eina_list_remove(sd->grids, g_orient);
+             _grid_clear(obj, g_orient);
+             free(g_orient);
+             EINA_LIST_FOREACH(sd->grids, l, g_orient)
+               {
+                  g_orient->dead = 1;
+               }
+          }
+        sd->grids = eina_list_prepend(sd->grids, g);
+     }
+   else
+     {
+        EINA_LIST_FREE(sd->grids, g)
+          {
+             _grid_clear(obj, g);
+             free(g);
+          }
+     }
+
+   evas_object_image_orient_set(sd->img, orient);
+   evas_object_image_size_get(sd->img, &iw, &ih);
+   sd->size.imw = iw;
+   sd->size.imh = ih;
+   sd->size.w = iw / sd->zoom;
+   sd->size.h = ih / sd->zoom;
+   _orient_do(obj, sd);
+}
+
+EOLIAN static Evas_Image_Orient
+_elm_photocam_image_orient_get(Eo *obj EINA_UNUSED, Elm_Photocam_Data *sd)
+{
+   return sd->orient;
+}
+
 EOLIAN static void
 _elm_photocam_evas_object_smart_add(Eo *obj, Elm_Photocam_Data *priv)
 {
@@ -1455,7 +1517,6 @@ _internal_file_set(Eo *obj, Elm_Photocam_Data *sd, const char *file, Eina_File *
    sd->size.w = sd->size.imw / sd->zoom;
    sd->size.h = sd->size.imh / sd->zoom;
    evas_object_image_file_set(sd->img, NULL, NULL);
-   evas_object_image_load_scale_down_set(sd->img, 8);
    _photocam_image_file_set(sd->img, sd);
    err = evas_object_image_load_error_get(sd->img);
    if (err != EVAS_LOAD_ERROR_NONE)
@@ -1481,6 +1542,7 @@ _internal_file_set(Eo *obj, Elm_Photocam_Data *sd, const char *file, Eina_File *
    tz = sd->zoom;
    sd->zoom = 0.0;
    elm_photocam_zoom_set(obj, tz);
+   sd->orient = EVAS_IMAGE_ORIENT_NONE;
 
    if (ret) *ret = evas_object_image_load_error_get(sd->img);
 }
@@ -1831,7 +1893,6 @@ EOLIAN static void
 _elm_photocam_zoom_mode_set(Eo *obj, Elm_Photocam_Data *sd, Elm_Photocam_Zoom_Mode mode)
 {
    double tz;
-
    if (sd->mode == mode) return;
    sd->mode = mode;
 

legacy/elementary/src/lib/elm_photocam.eo

@@ -205,6 +205,36 @@ class Elm_Photocam (Elm_Widget, Elm_Interface_Scrollable,
             int h; /*@ A pointer to the height return */
          }
       }
+      image_orient {
+         set {
+            /*@
+            Set the photocam image orientation.
+
+            This function allows to rotate or flip the photocam image.
+
+            @see elm_photocam_image_orient_get()
+            @see @ref Evas_Image_Orient
+
+            @since 1.14
+            @ingroup Photocam */
+         }
+         get {
+            /*@
+            Get the photocam image orientation.
+
+            @return The photocam image orientation @ref Evas_Image_Orient
+
+            @see elm_photocam_image_orient_set()
+            @see @ref Evas_Image_Orient
+
+            @since 1.14
+            @ingroup Photocam */
+         }
+         values {
+            Evas_Image_Orient orient; /*@ The photocam image orientation @ref Evas_Image_Orient
+            Default is #EVAS_IMAGE_ORIENT_NONE. */
+         }
+      }
    }
    methods {
       image_region_show {

legacy/elementary/src/lib/elm_photocam.h

@@ -80,7 +80,6 @@ struct _Elm_Photocam_Progress
    double total;
 };
 
-
 /**
  * Structre associated with smart callback 'download,error'
  * @since 1.8

legacy/elementary/src/lib/elm_widget_photocam.h

@@ -120,6 +120,7 @@ struct _Elm_Photocam_Data
    int          preload_num;
 
    Eina_List   *grids;
+   Evas_Image_Orient      orient; /**< This stores the current orientation of Photocam. By default this is set to EVAS_IMAGE_ORIENT_NONE */
 
    Eina_Bool    main_load_pending : 1;
    Eina_Bool    longpressed : 1;