forked from enlightenment/efl
254 lines
8.1 KiB
C
254 lines
8.1 KiB
C
#ifndef ELM_INTEFARCE_SCROLLER_H
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#define ELM_INTEFARCE_SCROLLER_H
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/**
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* @addtogroup Widget
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* @{
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*
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* @section elm-scrollable-interface The Elementary Scrollable Interface
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*
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* This is a common interface for widgets having @b scrollable views.
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* Widgets using/implementing this must use the
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* @c EVAS_SMART_SUBCLASS_IFACE_NEW macro (instead of the
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* @c EVAS_SMART_SUBCLASS_NEW one) when declaring its smart class,
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* so an interface is also declared.
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*
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* The scrollable interface comes built with Elementary and is exposed
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* as #ELM_SCROLLABLE_IFACE.
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*
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* The interface API is explained in details at
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* #Elm_Scrollable_Smart_Interface.
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*
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* An Elementary scrollable interface will handle an internal @b
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* panning object. It has the function of clipping and moving the
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* actual scrollable content around, by the command of the scrollable
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* interface calls. Though it's not the common case, one might
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* want/have to change some aspects of the internal panning object
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* behavior. For that, we have it also exposed here --
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* #Elm_Pan_Smart_Class. Use elm_pan_smart_class_get() to build your
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* custom panning object, when creating a scrollable widget (again,
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* only if you need a custom panning object) and set it with
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* Elm_Scrollable_Smart_Interface::extern_pan_set.
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*/
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#include <elm_pan_eo.legacy.h>
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#include <elm_scroller.h>
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/**
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* Elementary scroller panning base smart data.
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*/
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typedef struct _Elm_Pan_Smart_Data Elm_Pan_Smart_Data;
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struct _Elm_Pan_Smart_Data
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{
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Evas_Object *self;
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Evas_Object *content;
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Evas_Object *interface_object;
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Evas_Coord x, y, w, h;
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Evas_Coord content_w, content_h, px, py;
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};
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/**
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* Elementary scrollable interface base data.
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*/
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typedef void (*Elm_Interface_Scrollable_Cb)(Evas_Object *, void *data);
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typedef void (*Elm_Interface_Scrollable_Min_Limit_Cb)(Evas_Object *obj, Eina_Bool w, Eina_Bool h);
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typedef void (*Elm_Interface_Scrollable_Resize_Cb)(Evas_Object *obj, Evas_Coord w, Evas_Coord h);
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typedef struct _Elm_Scrollable_Smart_Interface_Data
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Elm_Scrollable_Smart_Interface_Data;
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#include "elm_interface_scrollable.eo.h"
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struct _Elm_Scrollable_Smart_Interface_Data
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{
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Evas_Coord x, y, w, h;
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Evas_Coord wx, wy, ww, wh; /**< Last "wanted" geometry */
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Evas_Object *obj;
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Evas_Object *content;
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Evas_Object *pan_obj;
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Evas_Object *edje_obj;
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Evas_Object *event_rect;
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Evas_Object *parent_widget;
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Elm_Scroller_Policy hbar_flags, vbar_flags;
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Elm_Scroller_Single_Direction one_direction_at_a_time;
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Elm_Scroller_Movement_Block block;
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struct
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{
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Evas_Coord x, y;
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Evas_Coord sx, sy;
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Evas_Coord dx, dy;
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Evas_Coord pdx, pdy;
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Evas_Coord bx, by;
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Evas_Coord ax, ay;
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Evas_Coord bx0, by0;
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Evas_Coord b0x, b0y;
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Evas_Coord b2x, b2y;
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struct
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{
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Evas_Coord x, y;
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double timestamp;
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} history[60];
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double est_timestamp_diff;
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double dragged_began_timestamp;
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double anim_start;
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double anim_start2;
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double anim_start3;
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double anim_dur;
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double onhold_vx, onhold_vy, onhold_tlast,
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onhold_vxe, onhold_vye;
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double last_time_x_wheel;
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double last_time_y_wheel;
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Evas_Coord hold_x, hold_y;
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Evas_Coord locked_x, locked_y;
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int hdir, vdir;
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Ecore_Idle_Enterer *hold_enterer;
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Eina_Bool hold_animator : 1;
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Eina_Bool onhold_animator : 1;
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Eina_Bool momentum_animator : 1; /**< an animator which is called whenever a scroller is moving due to a flick action(mouse down, move, up) */
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Eina_Bool bounce_x_animator : 1; /**< an animator to express the bouncing animation on x axis. */
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Eina_Bool bounce_y_animator : 1; /**< an animator to express the bouncing animation on y axis. */
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Eina_Bool last_hold_x_wheel : 1;
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Eina_Bool last_hold_y_wheel : 1;
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Eina_Bool bounce_x_hold : 1;
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Eina_Bool bounce_y_hold : 1;
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Eina_Bool dragged_began : 1;
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Eina_Bool want_dragged : 1;
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Eina_Bool hold_parent : 1;
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Eina_Bool want_reset : 1;
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Eina_Bool cancelled : 1;
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Eina_Bool dragged : 1;
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Eina_Bool locked : 1;
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Eina_Bool scroll : 1;
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Eina_Bool dir_x : 1;
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Eina_Bool dir_y : 1;
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Eina_Bool hold : 1;
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Eina_Bool now : 1;
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} down;
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struct
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{
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Evas_Coord w, h;
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Eina_Bool resized : 1;
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} content_info;
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struct
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{
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Evas_Coord x, y;
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} step, page, current_page;
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struct
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{
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Elm_Interface_Scrollable_Cb drag_start;
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Elm_Interface_Scrollable_Cb drag_stop;
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Elm_Interface_Scrollable_Cb animate_start;
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Elm_Interface_Scrollable_Cb animate_stop;
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Elm_Interface_Scrollable_Cb scroll;
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Elm_Interface_Scrollable_Cb scroll_left;
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Elm_Interface_Scrollable_Cb scroll_right;
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Elm_Interface_Scrollable_Cb scroll_up;
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Elm_Interface_Scrollable_Cb scroll_down;
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Elm_Interface_Scrollable_Cb edge_left;
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Elm_Interface_Scrollable_Cb edge_right;
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Elm_Interface_Scrollable_Cb edge_top;
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Elm_Interface_Scrollable_Cb edge_bottom;
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Elm_Interface_Scrollable_Cb vbar_drag;
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Elm_Interface_Scrollable_Cb vbar_press;
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Elm_Interface_Scrollable_Cb vbar_unpress;
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Elm_Interface_Scrollable_Cb hbar_drag;
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Elm_Interface_Scrollable_Cb hbar_press;
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Elm_Interface_Scrollable_Cb hbar_unpress;
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Elm_Interface_Scrollable_Cb page_change;
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Elm_Interface_Scrollable_Min_Limit_Cb content_min_limit;
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Elm_Interface_Scrollable_Resize_Cb content_viewport_resize;
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} cb_func;
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struct
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{
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struct
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{
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Evas_Coord start, end;
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double t_start, t_end;
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Eina_Bool animator;
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} x, y;
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} scrollto;
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double pagerel_h, pagerel_v;
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Evas_Coord pagesize_h, pagesize_v;
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int page_limit_h, page_limit_v;
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int current_calc;
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double last_wheel_mul;
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unsigned int last_wheel;
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unsigned char size_adjust_recurse;
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unsigned char size_count;
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void *event_info;
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double gravity_x, gravity_y;
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Evas_Coord prev_cw, prev_ch;
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Eina_Bool size_adjust_recurse_abort : 1;
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Eina_Bool momentum_animator_disabled : 1;
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Eina_Bool bounce_animator_disabled : 1;
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Eina_Bool page_snap_horiz : 1;
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Eina_Bool page_snap_vert : 1;
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Eina_Bool wheel_disabled : 1;
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Eina_Bool hbar_visible : 1;
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Eina_Bool vbar_visible : 1;
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Eina_Bool bounce_horiz : 1;
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Eina_Bool bounce_vert : 1;
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Eina_Bool is_mirrored : 1;
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Eina_Bool extern_pan : 1;
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Eina_Bool bouncemey : 1;
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Eina_Bool bouncemex : 1;
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Eina_Bool freeze : 1;
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Eina_Bool freeze_want : 1;
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Eina_Bool hold : 1;
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Eina_Bool min_w : 1;
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Eina_Bool min_h : 1;
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Eina_Bool go_left : 1;
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Eina_Bool go_right : 1;
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Eina_Bool go_up : 1;
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Eina_Bool go_down : 1;
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Eina_Bool loop_h : 1;
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Eina_Bool loop_v : 1;
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void *manager; /* Efl_Ui_Focus_Manager */
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};
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#define ELM_SCROLLABLE_CHECK(obj, ...) \
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\
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if (!efl_isa(obj, ELM_INTERFACE_SCROLLABLE_MIXIN)) \
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{ \
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ERR("The object (%p) doesn't implement the Elementary scrollable" \
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" interface", obj); \
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if (getenv("ELM_ERROR_ABORT")) abort(); \
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return __VA_ARGS__; \
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}
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#ifdef EFL_BETA_API_SUPPORT
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EAPI void elm_pan_gravity_set(Elm_Pan *, double x, double) EINA_DEPRECATED;
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EAPI void elm_pan_gravity_get(const Elm_Pan *, double *, double *) EINA_DEPRECATED;
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#endif
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/**
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* @}
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*/
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#endif
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