zoom: add mouse event

Change-Id: I91d6a83b63c87a0dfc301a0cdf3cde1140ddc3e6
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/src/view/zoom.c b/src/view/zoom.c
index da4db9f..e3bd2c5 100644 (file)
--- a/src/view/zoom.c
+++ b/src/view/zoom.c
@@ -41,6 +41,8 @@
 #define TOAST_MESSAGE "Press Back to Escape from Zoom mode"
 #define TOAST_TIMEOUT 3.0
 
+#define NAVI_RECT_NUM 5
+
 enum {
        DIR_UP = 0,
        DIR_DOWN,
@@ -54,12 +56,15 @@ struct _priv {
        Evas_Object *base;
        Evas_Object *photo;
        Evas_Object *thumb;
-       Evas_Object *navi[DIR_NUM];
+       Evas_Object *navi[NAVI_RECT_NUM];
        Evas_Object *notify;
        app_media_info *mi;
        struct controller *ctl;
        double image_ratio;
        double zoom_ratio;
+       int navi_w;
+       int navi_h;
+       bool drag;
 };
 
 struct _btn_info {
@@ -182,6 +187,9 @@ static void _update_navi(struct _priv *priv)
        mw = pw * priv->image_ratio;
        mh = ph * priv->image_ratio;
 
+       priv->navi_w = mw;
+       priv->navi_h = mh;
+
        /* up */
        x[DIR_UP] = nx;
        y[DIR_UP] = ny;
@@ -210,6 +218,47 @@ static void _update_navi(struct _priv *priv)
                evas_object_resize(priv->navi[i], w[i], h[i]);
                evas_object_move(priv->navi[i], x[i], y[i]);
        }
+
+       evas_object_resize(priv->navi[i], mw, mh);
+       evas_object_move(priv->navi[i], mx, my);
+}
+
+static void _move_navi(struct _priv *priv, Evas_Coord_Point coord)
+{
+       Evas_Object *obj;
+       int px, py, pw, ph;     /* photo's geometry */
+       int nx, ny, nw, nh;     /* thumb's geometry */
+       int mx, my, mw, mh;     /* navi's geometry */
+       int w, h;
+
+       elm_photocam_image_size_get(priv->photo, &w, &h);
+
+       elm_photocam_image_region_get(priv->photo, &px, &py, &pw, &ph);
+
+       obj = elm_image_object_get(priv->thumb);
+       evas_object_geometry_get(obj, &nx, &ny, &nw, &nh);
+
+       mw = priv->navi_w;
+       mh = priv->navi_h;
+
+       mx = coord.x - (mw / 2);
+       my = coord.y - (mh / 2);
+
+       if (mx < nx)
+               mx = 0;
+       else if (mx > nx + nw - mw)
+               mx = w - pw;
+       else
+               mx = (mx - nx) / priv->image_ratio;
+
+       if (my < ny)
+               my = 0;
+       else if (my > ny + nh - mh)
+               my = h - ph;
+       else
+               my = (my - ny) / priv->image_ratio;
+
+       elm_scroller_region_show(priv->photo, mx, my, pw, ph);
 }
 
 static Eina_Bool _zoom_set(void *data)
@@ -335,7 +384,57 @@ static void _key_down(int id, void *data, Evas *e, Evas_Object *obj,
        ctl->ops->signal(ctl->handle, dir, sig);
 }
 
-static input_handler _handler = {
+static void _mouse_move(int id, void *data, Evas *e, Evas_Object *obj,
+                       Evas_Event_Mouse_Move *ev)
+{
+       struct _priv *priv;
+
+       if (!data || !ev)
+               return;
+
+       priv = data;
+
+       if (!priv->drag)
+               return;
+
+       _move_navi(priv, ev->cur.canvas);
+}
+
+static void _mouse_up(int id, void *data, Evas *e, Evas_Object *obj,
+                       Evas_Event_Mouse_Up *ev)
+{
+       struct _priv *priv;
+
+       if (!data || !ev)
+               return;
+
+       priv = data;
+
+       priv->drag = false;
+}
+
+static void _mouse_down(int id, void *data, Evas *e, Evas_Object *obj,
+                       Evas_Event_Mouse_Down *ev)
+{
+       struct _priv *priv;
+
+       if (!data || !ev)
+               return;
+
+       priv = data;
+
+       priv->drag = true;
+
+       _move_navi(priv, ev->canvas);
+}
+
+static input_handler _navi_handler = {
+       .mouse_move = _mouse_move,
+       .mouse_down = _mouse_down,
+       .mouse_up = _mouse_up,
+};
+
+static input_handler _btn_handler = {
        .key_up = _key_up,
        .key_down = _key_down,
 };
@@ -391,7 +490,7 @@ static bool _draw_navi(struct _priv *priv)
        Evas_Object *obj;
        int i;
 
-       for (i = 0; i < DIR_NUM; i++) {
+       for (i = 0; i < NAVI_RECT_NUM; i++) {
                obj = evas_object_rectangle_add(
                                evas_object_evas_get(priv->base));
                if (!obj) {
@@ -399,9 +498,15 @@ static bool _draw_navi(struct _priv *priv)
                        return false;
                }
 
-               evas_object_color_set(obj, 0, 0, 0, 204);
+               if (i == NAVI_RECT_NUM - 1)
+                       evas_object_color_set(obj, 0, 0, 0, 0);
+               else
+                       evas_object_color_set(obj, 0, 0, 0, 204);
+
                evas_object_show(obj);
 
+               inputmgr_add_callback(obj, 0, &_navi_handler, priv);
+
                priv->navi[i] = obj;
        }
 
@@ -442,7 +547,7 @@ static bool _ui_init(struct _priv *priv)
 
                obj = ctl->ops->get_object(ctl->handle, i);
                if (obj)
-                       inputmgr_add_callback(obj, 0, &_handler, priv);
+                       inputmgr_add_callback(obj, 0, &_btn_handler, priv);
        }
 
        priv->ctl = ctl;
@@ -542,9 +647,11 @@ static void _hide(void *view_data)
        if (priv->thumb)
                evas_object_del(priv->thumb);
 
-       for (i = 0; i < DIR_NUM; i++) {
-               if (priv->navi[i])
+       for (i = 0; i < NAVI_RECT_NUM; i++) {
+               if (priv->navi[i]) {
+                       inputmgr_remove_callback(priv->navi[i], &_navi_handler);
                        evas_object_del(priv->navi[i]);
+               }
        }
 
        _hide_toast(priv);
@@ -602,7 +709,7 @@ static void _destroy(void *view_data)
        for (i = 0; i < ARRAY_SIZE(btn_arrow); i++) {
                obj = ctl->ops->get_object(ctl->handle, i);
                if (obj)
-                       inputmgr_remove_callback(obj, &_handler);
+                       inputmgr_remove_callback(obj, &_btn_handler);
        }
 
        evas_object_del(priv->base);