: Class listbox

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SUMMARY: INNER | FIELD | CONSTR | METHOD

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sub_arctic.lib
Class listbox_helper

java.lang.Object
  |
  +--sub_arctic.lib.min_interactor
        |
        +--sub_arctic.lib.base_interactor
              |
              +--sub_arctic.lib.base_parent_interactor
                    |
                    +--sub_arctic.lib.listbox_helper

public class listbox_helper
extends base_parent_interactor

This class is the helper for the listbox. It holds the listbox_child_display and the horizontal scrollbar. It handles drawing the appropriate borders around the object. It is the internal use only of the listbox code. It may change without notice.

Field Summary
`protected int`	`_above_space` This variable holds the amount of space above of the list.
`protected int`	`_below_space` This variable holds the amount of space below of the list.
`protected int`	`_left_space` This variable holds the amount of space to the left of the list.
`protected int`	`_right_space` This variable holds the amount of space to the right of the list.

Fields inherited from class sub_arctic.lib.base_interactor

_child_index,  
_child_list,  
_clip_bounds,  
_constraint_flags,  
_enabled_constraint,  
_flags,  
_h,  
_h_constraint,  
_parent,  
_part_a_constraint,  
_part_b_constraint,  
_user_data,  
_visible_constraint,  
_w,  
_w_constraint,  
_x,  
_x_constraint,  
_y,  
_y_constraint,  
default_child_hint

Constructor Summary
`listbox_helper()` Create a listbox helper.

Method Summary
`int`	`available_height()` Return the amount of usable vertical pixels in this object.
`int`	`available_width()` Return the amount of usable horizontal pixels in this object.
`void`	`draw_self_local(drawable d)` We need to implement the border handling code, so we override the drawing code to do this.
`boolean`	`has_h_scrollbar()` This is just a utility to find out if we have an h scrollbar or not.
`void`	`pick(int pt_x, int pt_y, pick_collector pick_list)` This is the pick routine for the listbox helper.

Methods inherited from class sub_arctic.lib.base_interactor

active_constraints, 
add_child, 
add_user_datum, 
attach_dependent, 
bound, 
callback_obj, 
child_index, 
child, 
clear_child_list, 
clear_constraint_flag_bit, 
clear_flag_bit, 
configure, 
constraint_flag_is_set, 
constraint_flag_string, 
constraint_on, 
custom_fun1, 
custom_fun2, 
damage_fixed, 
damage_from_child, 
damage_self, 
damage_self, 
damage_self, 
damage_self, 
damage_self, 
detach_dependent, 
do_action, 
do_action, 
do_callback, 
do_callback, 
drag_feature_point, 
draw_children, 
draw_self, 
enabled_constraint, 
enabled, 
enter_local_coordinates, 
eval_enabled, 
eval_h, 
eval_part_a, 
eval_part_b, 
eval_visible, 
eval_w, 
eval_x, 
eval_y, 
eval, 
exit_local_coords, 
feature_point_enabled, 
feature_point, 
filter_pt, 
find_child, 
first_callback_num, 
fixed_children, 
flag_is_set, 
flag_string, 
focus_set_enter, 
focus_set_exit, 
get_awt_component, 
get_external_constraint, 
get_part, 
get_top_level, 
get_value, 
global_to_local, 
global_to_local, 
h_constraint, 
h, 
handle_cycle, 
inform_ood, 
insert_child, 
inside_bounds, 
into_local, 
into_local, 
into_parent, 
into_parent, 
intrinsic_constraints, 
is_constrained, 
last_callback_num, 
local_to_global, 
local_to_global, 
mark_all_ood, 
mark_enabled_ood, 
mark_h_ood, 
mark_ood, 
mark_part_a_ood, 
mark_part_b_ood, 
mark_reparented_ood, 
mark_visible_ood, 
mark_w_ood, 
mark_x_ood, 
mark_y_ood, 
marked_ood, 
move_child_downward, 
move_child_downward, 
move_child_to_bottom, 
move_child_to_bottom, 
move_child_to_top, 
move_child_to_top, 
move_child_upward, 
move_child_upward, 
move_downward, 
move_to_bottom, 
move_to_top, 
move_upward, 
new_look_configure, 
next_sibling, 
num_actions, 
num_children, 
num_feature_points, 
ood_inform_all, 
parent, 
part_a_constraint, 
part_a, 
part_b_constraint, 
part_b, 
pick_within_children, 
picked_by, 
pos, 
prev_sibling, 
register_resource_names, 
remove_child, 
remove_child, 
remove_user_datum, 
restyle_look_resources, 
restyle, 
set_callback_obj, 
set_child_index, 
set_child, 
set_constraint_flag_bit, 
set_constraint_flag_bit, 
set_constraint, 
set_constraint, 
set_enabled_constraint, 
set_enabled_constraint, 
set_enabled_constraint, 
set_enabled, 
set_flag_bit, 
set_flag_bit, 
set_h_constraint, 
set_h_constraint, 
set_h_constraint, 
set_h, 
set_intrinsic_h, 
set_intrinsic_size, 
set_intrinsic_w, 
set_parent, 
set_part_a_constraint, 
set_part_a_constraint, 
set_part_a_constraint, 
set_part_a, 
set_part_b_constraint, 
set_part_b_constraint, 
set_part_b_constraint, 
set_part_b, 
set_pos, 
set_pos, 
set_raw_enabled, 
set_raw_h, 
set_raw_part_a, 
set_raw_part_b, 
set_raw_visible, 
set_raw_w, 
set_raw_x, 
set_raw_y, 
set_size, 
set_style_lock, 
set_user_info, 
set_visible_constraint, 
set_visible_constraint, 
set_visible_constraint, 
set_visible, 
set_w_constraint, 
set_w_constraint, 
set_w_constraint, 
set_w, 
set_x_constraint, 
set_x_constraint, 
set_x_constraint, 
set_x, 
set_y_constraint, 
set_y_constraint, 
set_y_constraint, 
set_y, 
setup_for_children, 
setup_for_children, 
setup_for_fixed_children, 
size, 
style_change_local, 
style_change, 
supports_children, 
tag_str, 
toString, 
traverse_and_collect_children, 
traverse_and_collect_parent, 
traverse_and_collect, 
trivial_reject, 
trivial_reject, 
user_data, 
user_info, 
value_ood, 
visible_constraint, 
visible, 
w_constraint, 
w, 
x_constraint, 
x_into_local, 
x_into_parent, 
x, 
y_constraint, 
y_into_local, 
y_into_parent, 
y

Methods inherited from class java.lang.Object

clone, 
equals, 
finalize, 
getClass, 
hashCode, 
notify, 
notifyAll, 
wait, 
wait, 
wait

Field Detail

_right_space

protected int _right_space

This variable holds the amount of space to the right of the list.

_left_space

protected int _left_space

This variable holds the amount of space to the left of the list.

_above_space

protected int _above_space

This variable holds the amount of space above of the list.

_below_space

protected int _below_space

This variable holds the amount of space below of the list.

Constructor Detail

listbox_helper

public listbox_helper()

Create a listbox helper. We default the size because we know we are going to add constraints to it.

Method Detail

draw_self_local

public void draw_self_local(drawable d)

We need to implement the border handling code, so we override the drawing code to do this.

Parameters:: drawable - d the drawable to display on
Overrides:: draw_self_local in class base_interactor

available_width

public int available_width()

Return the amount of usable horizontal pixels in this object.

Returns:: int width of the usable area

available_height

public int available_height()

Return the amount of usable vertical pixels in this object.

Returns:: int height of the usable area

pick

public void pick(int pt_x,
                 int pt_y,
                 pick_collector pick_list)

This is the pick routine for the listbox helper. If the user clicks in the areas that we consider "out of bounds" - the border areas, we don't allow ourselves to be picked. If the user picks anywhere else, we allow it.

Parameters:: int - pt_x the x coordinate of the point; int - pt_y the y coordinate of the point; pick_collector - the object to put yourself in if you are picked
Overrides:: pick in class base_interactor

has_h_scrollbar

public boolean has_h_scrollbar()

This is just a utility to find out if we have an h scrollbar or not.