sub_arctic.lib
Class backdrop_drag_container
java.lang.Object
|
+--sub_arctic.lib.min_interactor
|
+--sub_arctic.lib.base_interactor
|
+--sub_arctic.lib.base_parent_interactor
|
+--sub_arctic.lib.shrink_wrap_container
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+--sub_arctic.lib.drag_container
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+--sub_arctic.lib.backdrop_drag_container
- public class backdrop_drag_container
- extends drag_container
- implements does_callback
This class provides a container for dragging. You can put any subtree
inside it to make that subtree draggable. The container handles the
pick process correctly so that it only initiates a drag if you actually
click over an object inside the an object in the sub-tree (not simply
anywhere inside the bounds of the container). The container will
"shrink-wrap" around the objects it contains, and can optionally draw
a bounding rectangle as drag feedback.
| 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 |
backdrop_drag_container(int x,
int y,
boolean do_bb_feedback,
callback_object cbo,
java.lang.String s,
java.applet.Applet appl,
backdrop_lens l)
full constructor. |
backdrop_drag_container(int x,
int y,
boolean do_bb_feedback,
java.lang.String s,
java.applet.Applet appl,
backdrop_lens l)
Nearly full constructor. |
|
Method Summary |
boolean |
drag_end(event evt,
int x_pos,
int y_pos,
int st_x,
int st_y,
int grab_x,
int grab_y,
java.lang.Object user_info)
Handle input corresponding to the end of a drag. |
boolean |
drag_feedback(event evt,
int x_pos,
int y_pos,
int st_x,
int st_y,
int grab_x,
int grab_y,
java.lang.Object user_info)
Handle a movement during a drag. |
boolean |
drag_start(event evt,
int x_pos,
int y_pos,
int grab_x,
int grab_y,
java.lang.Object user_info)
Handle the start of a drag to the object. |
protected void |
draw_self_local(drawable d)
Draw the object's current appearance. |
void |
pick(int pt_x,
int pt_y,
pick_collector pick_list)
Determine if this object is "picked" by the the given point. |
boolean |
press(event evt,
java.lang.Object user_info)
Handle mouse button press input to the object. |
boolean |
release(event evt,
java.lang.Object user_info)
Companion to press(). |
| Methods inherited from class sub_arctic.lib.base_interactor |
active_constraints,
add_child,
add_user_datum,
attach_dependent,
bound,
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,
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,
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_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 |
source
protected java.lang.String source
img
protected loaded_image img
our_applet
protected java.applet.Applet our_applet
do_bb
protected boolean do_bb
our_lens
protected backdrop_lens our_lens
backdrop_drag_container
public backdrop_drag_container(int x,
int y,
boolean do_bb_feedback,
callback_object cbo,
java.lang.String s,
java.applet.Applet appl,
backdrop_lens l)
- full constructor.
- Parameters:
int - x initial x position of the container.int - y initial y position of the container.boolean - do_bb_feedback whether we do bounding box feedback.callback_object - cbo object to make callbacks to.
backdrop_drag_container
public backdrop_drag_container(int x,
int y,
boolean do_bb_feedback,
java.lang.String s,
java.applet.Applet appl,
backdrop_lens l)
- Nearly full constructor. This provides a null callback.
- Parameters:
int - x initial x position of the container.int - y initial y position of the container.boolean - do_bb_feedback whether we do bounding box feedback.
press
public boolean press(event evt,
java.lang.Object user_info)
- Handle mouse button press input to the object. Here, we start dragging.
- Parameters:
event - evt press event being dispatched.Object - user_info information provided by this object at pick time
(in this case ignored).- Overrides:
- press in class drag_container
release
public boolean release(event evt,
java.lang.Object user_info)
- Companion to press(). Here we ignore this.
- Parameters:
event - evt release event being dispatched.Object - user_info information provided by this object at pick time- Overrides:
- release in class drag_container
drag_start
public boolean drag_start(event evt,
int x_pos,
int y_pos,
int grab_x,
int grab_y,
java.lang.Object user_info)
- Handle the start of a drag to the object.
- Parameters:
event - evt the event "causing" the start of the drag.int - x_pos x position of new position (in parent's coords).int - y_pos y position of new position (in parent's coords).int - grab_x x position where we started the drag (in local
coords).int - grab_y y position where we started the drag (in local
coords).Object - user_info information provided when this object requested
focus.- Returns:
- boolean indicating whether the input was consumed (in this case it
always is).
- Overrides:
- drag_start in class drag_container
drag_feedback
public boolean drag_feedback(event evt,
int x_pos,
int y_pos,
int st_x,
int st_y,
int grab_x,
int grab_y,
java.lang.Object user_info)
- Handle a movement during a drag. Here we just set our position to
follow the event location and do the move callback.
- Parameters:
event - evt the event "causing" the start of the drag.int - x_pos x position of new position (in parent's coords).int - y_pos y position of new position (in parent's coords).int - start_x x position where we started the drag (in parent's
coords).int - start_y y position where we started the drag (in parent's
coords).int - grab_x x position where we started the grab (in local
coords).int - grab_y y position where we started the grab (in local
coords).Object - user_info information provided when this object requested
focus.- Returns:
- boolean indicating whether the input was consumed (in this case it
always is).
- Overrides:
- drag_feedback in class drag_container
drag_end
public boolean drag_end(event evt,
int x_pos,
int y_pos,
int st_x,
int st_y,
int grab_x,
int grab_y,
java.lang.Object user_info)
- Handle input corresponding to the end of a drag.
- Parameters:
event - evt the event "causing" the start of the drag.int - x_pos x position of new position (in parent's coords).int - y_pos y position of new position (in parent's coords).int - start_x x position where we started the drag (in parent's
coords).int - start_y y position where we started the drag (in parent's
coords).int - grab_x x position where we started the grab (in local
coords).int - grab_y y position where we started the grab (in local
coords).Object - user_info information provided when this object requested
focus.- Returns:
- boolean indicating whether the input was consumed (in this case it
always is).
- Overrides:
- drag_end in class drag_container
pick
public void pick(int pt_x,
int pt_y,
pick_collector pick_list)
- Determine if this object is "picked" by the the given point. In this
case, we are only picked if at least one of our descendents is picked,
but we need to be in the pick list before our children so we can
intercept input intended for them. To do this, we do a "local" pick
within our children, then merge that back into the "real" pick as needed.
putting ourselves first then picks from our children.
- Parameters:
int - pt_x x of point we are testing for pick.int - pt_y y of point we are testing for pick.pick_collector - pick_list the collector for our result.- Overrides:
- pick in class drag_container
draw_self_local
protected void draw_self_local(drawable d)
- Draw the object's current appearance. This draws the children
and then the optional border rectangle if we are being dragged.
- Parameters:
drawable - d the surface we draw on.- Overrides:
- draw_self_local in class drag_container