612 lines
16 KiB
C
612 lines
16 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#include "e.h"
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#define SMART_NAME "e_scrollframe"
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#define API_ENTRY E_Smart_Data *sd; sd = evas_object_smart_data_get(obj); if ((!obj) || (!sd) || (evas_object_type_get(obj) && strcmp(evas_object_type_get(obj), SMART_NAME)))
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#define INTERNAL_ENTRY E_Smart_Data *sd; sd = evas_object_smart_data_get(obj); if (!sd) return;
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typedef struct _E_Smart_Data E_Smart_Data;
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struct _E_Smart_Data
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{
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Evas_Coord x, y, w, h;
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Evas_Object *smart_obj;
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Evas_Object *child_obj;
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Evas_Object *pan_obj;
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Evas_Object *edje_obj;
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Evas_Object *event_obj;
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E_Scrollframe_Policy hbar_flags, vbar_flags;
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struct {
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Evas_Coord w, h;
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} child;
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struct {
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Evas_Coord x, y;
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} step, page;
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unsigned char hbar_visible : 1;
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unsigned char vbar_visible : 1;
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};
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/* local subsystem functions */
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static void _e_smart_child_del_hook(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _e_smart_child_resize_hook(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _e_smart_event_wheel(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static void _e_smart_edje_drag_v(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _e_smart_edje_drag_h(void *data, Evas_Object *obj, const char *emission, const char *source);
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static void _e_smart_scrollbar_read(E_Smart_Data *sd);
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static void _e_smart_scrollbar_reset(E_Smart_Data *sd);
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static int _e_smart_scrollbar_bar_h_visibility_adjust(E_Smart_Data *sd);
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static int _e_smart_scrollbar_bar_v_visibility_adjust(E_Smart_Data *sd);
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static void _e_smart_scrollbar_bar_visibility_adjust(E_Smart_Data *sd);
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static void _e_smart_scrollbar_size_adjust(E_Smart_Data *sd);
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static void _e_smart_reconfigure(E_Smart_Data *sd);
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static void _e_smart_add(Evas_Object *obj);
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static void _e_smart_del(Evas_Object *obj);
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static void _e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
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static void _e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
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static void _e_smart_show(Evas_Object *obj);
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static void _e_smart_hide(Evas_Object *obj);
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static void _e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a);
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static void _e_smart_clip_set(Evas_Object *obj, Evas_Object * clip);
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static void _e_smart_clip_unset(Evas_Object *obj);
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static void _e_smart_init(void);
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/* local subsystem globals */
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static Evas_Smart *_e_smart = NULL;
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/* externally accessible functions */
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Evas_Object *
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e_scrollframe_add(Evas *evas)
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{
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_e_smart_init();
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return evas_object_smart_add(evas, _e_smart);
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}
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void
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e_scrollframe_child_set(Evas_Object *obj, Evas_Object *child)
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{
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Evas_Coord w, h;
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API_ENTRY return;
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if (sd->child_obj)
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{
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e_pan_child_set(sd->pan_obj, NULL);
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evas_object_event_callback_del(sd->child_obj, EVAS_CALLBACK_FREE, _e_smart_child_del_hook);
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evas_object_event_callback_del(sd->child_obj, EVAS_CALLBACK_RESIZE, _e_smart_child_resize_hook);
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}
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sd->child_obj = child;
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if (!child) return;
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evas_object_event_callback_add(child, EVAS_CALLBACK_FREE, _e_smart_child_del_hook, sd);
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evas_object_event_callback_add(child, EVAS_CALLBACK_RESIZE, _e_smart_child_resize_hook, sd);
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evas_object_geometry_get(child, NULL, NULL, &w, &h);
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sd->child.w = w;
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sd->child.h = h;
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e_pan_child_set(sd->pan_obj, sd->child_obj);
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_e_smart_scrollbar_size_adjust(sd);
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_e_smart_scrollbar_reset(sd);
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}
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void
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e_scrollframe_child_pos_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
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{
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Evas_Coord mx = 0, my = 0;
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double vx, vy;
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API_ENTRY return;
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e_pan_max_get(sd->pan_obj, &mx, &my);
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if (mx > 0) vx = (double)x / (double)mx;
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else vx = 0.0;
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if (vx < 0.0) vx = 0.0;
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else if (vx > 1.0) vx = 1.0;
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if (my > 0) vy = (double)y / (double)my;
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else vy = 0.0;
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if (vy < 0.0) vy = 0.0;
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else if (vy > 1.0) vy = 1.0;
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edje_object_part_drag_value_set(sd->edje_obj, "vbar_bar", 0.0, vy);
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edje_object_part_drag_value_set(sd->edje_obj, "hbar_bar", vx, 0.0);
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e_pan_set(sd->pan_obj, x, y);
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}
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void
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e_scrollframe_child_pos_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
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{
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API_ENTRY return;
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e_pan_get(sd->pan_obj, x, y);
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}
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void
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e_scrollframe_child_viewport_size_get(Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
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{
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API_ENTRY return;
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evas_object_geometry_get(sd->pan_obj, NULL, NULL, w, h);
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}
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void
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e_scrollframe_step_size_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
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{
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API_ENTRY return;
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if (x < 1) x = 1;
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if (y < 1) y = 1;
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sd->step.x = x;
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sd->step.y = y;
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_e_smart_scrollbar_size_adjust(sd);
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}
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void
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e_scrollframe_step_size_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
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{
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API_ENTRY return;
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if (x) *x = sd->step.x;
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if (y) *y = sd->step.y;
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}
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void
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e_scrollframe_page_size_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
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{
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API_ENTRY return;
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sd->page.x = x;
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sd->page.y = y;
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_e_smart_scrollbar_size_adjust(sd);
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}
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void
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e_scrollframe_page_size_get(Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
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{
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API_ENTRY return;
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if (x) *x = sd->page.x;
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if (y) *y = sd->page.y;
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}
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void
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e_scrollframe_policy_set(Evas_Object *obj, E_Scrollframe_Policy hbar, E_Scrollframe_Policy vbar)
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{
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API_ENTRY return;
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if ((sd->hbar_flags == hbar) && (sd->vbar_flags == vbar)) return;
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sd->hbar_flags = hbar;
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sd->vbar_flags = vbar;
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_e_smart_scrollbar_size_adjust(sd);
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}
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void
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e_scrollframe_policy_get(Evas_Object *obj, E_Scrollframe_Policy *hbar, E_Scrollframe_Policy *vbar)
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{
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API_ENTRY return;
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if (hbar) *hbar = sd->hbar_flags;
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if (vbar) *vbar = sd->vbar_flags;
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}
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/* local subsystem functions */
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static void
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_e_smart_edje_drag_v(void *data, Evas_Object *obj, const char *emission, const char *source)
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{
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E_Smart_Data *sd;
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sd = data;
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_e_smart_scrollbar_read(sd);
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}
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static void
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_e_smart_edje_drag_h(void *data, Evas_Object *obj, const char *emission, const char *source)
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{
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E_Smart_Data *sd;
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sd = data;
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_e_smart_scrollbar_read(sd);
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}
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static void
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_e_smart_child_del_hook(void *data, Evas *e, Evas_Object *obj, void *event_info)
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{
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E_Smart_Data *sd;
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sd = data;
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sd->child_obj = NULL;
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_e_smart_scrollbar_size_adjust(sd);
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_e_smart_scrollbar_reset(sd);
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}
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static void
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_e_smart_child_resize_hook(void *data, Evas *e, Evas_Object *obj, void *event_info)
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{
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Evas_Coord w, h;
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E_Smart_Data *sd;
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sd = data;
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evas_object_geometry_get(sd->child_obj, NULL, NULL, &w, &h);
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if ((w != sd->child.w) || (h != sd->child.h))
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{
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sd->child.w = w;
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sd->child.h = h;
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_e_smart_scrollbar_size_adjust(sd);
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}
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}
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static void
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_e_smart_event_wheel(void *data, Evas *e, Evas_Object *obj, void *event_info)
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{
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Evas_Event_Mouse_Wheel *ev;
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E_Smart_Data *sd;
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Evas_Coord x = 0, y = 0;
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sd = data;
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ev = event_info;
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e_scrollframe_child_pos_get(sd->smart_obj, &x, &y);
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y += ev->z * sd->step.y;
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e_scrollframe_child_pos_set(sd->smart_obj, x, y);
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}
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static void
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_e_smart_scrollbar_read(E_Smart_Data *sd)
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{
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Evas_Coord x, y, mx = 0, my = 0;
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double vx, vy;
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edje_object_part_drag_value_get(sd->edje_obj, "vbar_bar", NULL, &vy);
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edje_object_part_drag_value_get(sd->edje_obj, "hbar_bar", &vx, NULL);
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e_pan_max_get(sd->pan_obj, &mx, &my);
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x = vx * (double)mx;
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y = vy * (double)my;
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e_pan_set(sd->pan_obj, x, y);
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}
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static void
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_e_smart_scrollbar_reset(E_Smart_Data *sd)
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{
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edje_object_part_drag_value_set(sd->edje_obj, "vbar_bar", 0.0, 0.0);
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edje_object_part_drag_value_set(sd->edje_obj, "hbar_bar", 0.0, 0.0);
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if (!sd->child_obj)
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{
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edje_object_part_drag_size_set(sd->edje_obj, "vbar_bar", 1.0, 1.0);
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edje_object_part_drag_size_set(sd->edje_obj, "hbar_bar", 1.0, 1.0);
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}
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e_pan_set(sd->pan_obj, 0, 0);
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}
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static int
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_e_smart_scrollbar_bar_v_visibility_adjust(E_Smart_Data *sd)
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{
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int scroll_v_vis_change = 0;
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Evas_Coord w, h, vw, vh;
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w = sd->child.w;
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h = sd->child.h;
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evas_object_geometry_get(sd->pan_obj, NULL, NULL, &vw, &vh);
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if (sd->vbar_visible)
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{
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if (sd->vbar_flags == E_SCROLLFRAME_POLICY_AUTO)
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{
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if (sd->child_obj)
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{
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if (h <= vh)
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{
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scroll_v_vis_change = 1;
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sd->vbar_visible = 0;
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}
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}
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else
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{
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scroll_v_vis_change = 1;
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sd->vbar_visible = 0;
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}
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}
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else if (sd->vbar_flags == E_SCROLLFRAME_POLICY_OFF)
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{
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scroll_v_vis_change = 1;
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sd->vbar_visible = 0;
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}
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}
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else
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{
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if (sd->vbar_flags == E_SCROLLFRAME_POLICY_AUTO)
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{
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if (sd->child_obj)
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{
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if (h > vh)
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{
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scroll_v_vis_change = 1;
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sd->vbar_visible = 1;
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}
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}
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}
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else if (sd->vbar_flags == E_SCROLLFRAME_POLICY_ON)
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{
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scroll_v_vis_change = 1;
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sd->vbar_visible = 1;
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}
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}
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if (scroll_v_vis_change)
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{
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if (sd->vbar_visible)
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edje_object_signal_emit(sd->edje_obj, "vbar", "show");
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else
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edje_object_signal_emit(sd->edje_obj, "vbar", "hide");
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edje_object_message_signal_process(sd->edje_obj);
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_e_smart_scrollbar_size_adjust(sd);
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}
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return scroll_v_vis_change;
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}
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static int
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_e_smart_scrollbar_bar_h_visibility_adjust(E_Smart_Data *sd)
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{
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int scroll_h_vis_change = 0;
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Evas_Coord w, h, vw, vh;
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w = sd->child.w;
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h = sd->child.h;
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evas_object_geometry_get(sd->pan_obj, NULL, NULL, &vw, &vh);
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if (sd->hbar_visible)
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{
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if (sd->hbar_flags == E_SCROLLFRAME_POLICY_AUTO)
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{
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if (sd->child_obj)
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{
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if (w <= vw)
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{
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scroll_h_vis_change = 1;
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sd->hbar_visible = 0;
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}
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}
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else
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{
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scroll_h_vis_change = 1;
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sd->hbar_visible = 0;
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}
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}
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else if (sd->hbar_flags == E_SCROLLFRAME_POLICY_OFF)
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{
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scroll_h_vis_change = 1;
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sd->hbar_visible = 0;
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}
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}
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else
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{
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if (sd->hbar_flags == E_SCROLLFRAME_POLICY_AUTO)
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{
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if (sd->child_obj)
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{
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if (w > vw)
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{
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scroll_h_vis_change = 1;
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sd->hbar_visible = 1;
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}
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}
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}
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else if (sd->hbar_flags == E_SCROLLFRAME_POLICY_ON)
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{
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scroll_h_vis_change = 1;
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sd->hbar_visible = 1;
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}
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}
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if (scroll_h_vis_change)
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{
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if (sd->hbar_visible)
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edje_object_signal_emit(sd->edje_obj, "hbar", "show");
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else
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edje_object_signal_emit(sd->edje_obj, "hbar", "hide");
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edje_object_message_signal_process(sd->edje_obj);
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_e_smart_scrollbar_size_adjust(sd);
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}
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return scroll_h_vis_change;
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}
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static void
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_e_smart_scrollbar_bar_visibility_adjust(E_Smart_Data *sd)
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{
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int changed = 0;
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changed |= _e_smart_scrollbar_bar_h_visibility_adjust(sd);
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changed |= _e_smart_scrollbar_bar_v_visibility_adjust(sd);
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if (changed)
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{
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_e_smart_scrollbar_bar_h_visibility_adjust(sd);
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_e_smart_scrollbar_bar_v_visibility_adjust(sd);
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}
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}
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static void
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_e_smart_scrollbar_size_adjust(E_Smart_Data *sd)
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{
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if (sd->child_obj)
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{
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Evas_Coord x, y, w, h, mx = 0, my = 0, vw = 0, vh = 0;
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double vx, vy, size;
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evas_object_geometry_get(sd->pan_obj, NULL, NULL, &vw, &vh);
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w = sd->child.w;
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if (w < 1) w = 1;
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size = (double)vw / (double)w;
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if (size > 1.0)
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{
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size = 1.0;
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edje_object_part_drag_value_set(sd->edje_obj, "hbar_bar", 0.0, 0.0);
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}
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edje_object_part_drag_size_set(sd->edje_obj, "hbar_bar", size, 1.0);
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h = sd->child.h;
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if (h < 1) h = 1;
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size = (double)vh / (double)h;
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if (size > 1.0)
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{
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size = 1.0;
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edje_object_part_drag_value_set(sd->edje_obj, "vbar_bar", 0.0, 0.0);
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}
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edje_object_part_drag_size_set(sd->edje_obj, "vbar_bar", 1.0, size);
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edje_object_part_drag_value_get(sd->edje_obj, "hbar_bar", &vx, NULL);
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edje_object_part_drag_value_get(sd->edje_obj, "vbar_bar", NULL, &vy);
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e_pan_max_get(sd->pan_obj, &mx, &my);
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x = vx * mx;
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y = vy * my;
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edje_object_part_drag_step_set(sd->edje_obj, "hbar_bar", (double)sd->step.x / (double)w, 0.0);
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edje_object_part_drag_step_set(sd->edje_obj, "vbar_bar", 0.0, (double)sd->step.y / (double)h);
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if (sd->page.x > 0)
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edje_object_part_drag_page_set(sd->edje_obj, "hbar_bar", (double)sd->page.x / (double)w, 0.0);
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else
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edje_object_part_drag_page_set(sd->edje_obj, "hbar_bar", -((double)sd->page.x * ((double)vw / (double)w)) / 100.0, 0.0);
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if (sd->page.y > 0)
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edje_object_part_drag_page_set(sd->edje_obj, "vbar_bar", 0.0, (double)sd->page.y / (double)h);
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else
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edje_object_part_drag_page_set(sd->edje_obj, "vbar_bar", 0.0, -((double)sd->page.y * ((double)vh / (double)h)) / 100.0);
|
|
|
|
e_pan_set(sd->pan_obj, x, y);
|
|
}
|
|
else
|
|
{
|
|
edje_object_part_drag_size_set(sd->edje_obj, "vbar_bar", 1.0, 1.0);
|
|
edje_object_part_drag_size_set(sd->edje_obj, "hbar_bar", 1.0, 1.0);
|
|
e_pan_set(sd->pan_obj, 0, 0);
|
|
}
|
|
_e_smart_scrollbar_bar_visibility_adjust(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_reconfigure(E_Smart_Data *sd)
|
|
{
|
|
evas_object_move(sd->edje_obj, sd->x, sd->y);
|
|
evas_object_resize(sd->edje_obj, sd->w, sd->h);
|
|
evas_object_move(sd->event_obj, sd->x, sd->y);
|
|
evas_object_resize(sd->event_obj, sd->w, sd->h);
|
|
_e_smart_scrollbar_size_adjust(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_add(Evas_Object *obj)
|
|
{
|
|
E_Smart_Data *sd;
|
|
Evas_Object *o;
|
|
|
|
sd = calloc(1, sizeof(E_Smart_Data));
|
|
if (!sd) return;
|
|
evas_object_smart_data_set(obj, sd);
|
|
|
|
sd->smart_obj = obj;
|
|
sd->x = 0;
|
|
sd->y = 0;
|
|
sd->w = 0;
|
|
sd->h = 0;
|
|
sd->step.x = 32;
|
|
sd->step.y = 32;
|
|
sd->page.x = -50;
|
|
sd->page.y = -50;
|
|
sd->hbar_flags = E_SCROLLFRAME_POLICY_AUTO;
|
|
sd->vbar_flags = E_SCROLLFRAME_POLICY_AUTO;
|
|
sd->hbar_visible = 1;
|
|
sd->vbar_visible = 1;
|
|
|
|
o = edje_object_add(evas_object_evas_get(obj));
|
|
sd->edje_obj = o;
|
|
e_theme_edje_object_set(o, "base/theme/widgets",
|
|
"widgets/scrollframe");
|
|
edje_object_signal_callback_add(o, "drag*", "vbar_bar", _e_smart_edje_drag_v, sd);
|
|
edje_object_signal_callback_add(o, "drag*", "hbar_bar", _e_smart_edje_drag_h, sd);
|
|
evas_object_smart_member_add(o, obj);
|
|
|
|
o = e_pan_add(evas_object_evas_get(obj));
|
|
sd->pan_obj = o;
|
|
evas_object_show(o);
|
|
edje_object_part_swallow(sd->edje_obj, "item", o);
|
|
|
|
o = evas_object_rectangle_add(evas_object_evas_get(obj));
|
|
sd->event_obj = o;
|
|
evas_object_color_set(o, 0, 0, 0, 0);
|
|
evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL, _e_smart_event_wheel, sd);
|
|
evas_object_smart_member_add(o, obj);
|
|
evas_object_repeat_events_set(o, 1);
|
|
evas_object_show(o);
|
|
|
|
_e_smart_scrollbar_reset(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_del(Evas_Object *obj)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
e_scrollframe_child_set(obj, NULL);
|
|
evas_object_del(sd->pan_obj);
|
|
evas_object_del(sd->edje_obj);
|
|
evas_object_del(sd->event_obj);
|
|
free(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
sd->x = x;
|
|
sd->y = y;
|
|
_e_smart_reconfigure(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
sd->w = w;
|
|
sd->h = h;
|
|
_e_smart_reconfigure(sd);
|
|
}
|
|
|
|
static void
|
|
_e_smart_show(Evas_Object *obj)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
evas_object_show(sd->edje_obj);
|
|
}
|
|
|
|
static void
|
|
_e_smart_hide(Evas_Object *obj)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
evas_object_hide(sd->edje_obj);
|
|
}
|
|
|
|
static void
|
|
_e_smart_color_set(Evas_Object *obj, int r, int g, int b, int a)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
evas_object_color_set(sd->edje_obj, r, g, b, a);
|
|
}
|
|
|
|
static void
|
|
_e_smart_clip_set(Evas_Object *obj, Evas_Object * clip)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
evas_object_clip_set(sd->edje_obj, clip);
|
|
}
|
|
|
|
static void
|
|
_e_smart_clip_unset(Evas_Object *obj)
|
|
{
|
|
INTERNAL_ENTRY;
|
|
evas_object_clip_unset(sd->edje_obj);
|
|
}
|
|
|
|
/* never need to touch this */
|
|
|
|
static void
|
|
_e_smart_init(void)
|
|
{
|
|
if (_e_smart) return;
|
|
_e_smart = evas_smart_new(SMART_NAME,
|
|
_e_smart_add,
|
|
_e_smart_del,
|
|
NULL, NULL, NULL, NULL, NULL,
|
|
_e_smart_move,
|
|
_e_smart_resize,
|
|
_e_smart_show,
|
|
_e_smart_hide,
|
|
_e_smart_color_set,
|
|
_e_smart_clip_set,
|
|
_e_smart_clip_unset,
|
|
NULL);
|
|
}
|
|
|