tal.constraint
Class ChangeStateOnScrollText

java.lang.Object
  constraint.LayeredConstraint
      tal.constraint.ChangeStateOnScrollText

All Implemented Interfaces:

Constraint, ConstraintConstants, KeyboardConstants, StateConstants, TalConstants

public class ChangeStateOnScrollText

extends LayeredConstraint

implements KeyboardConstants, TalConstants

This constraint listens for actions from the buttons of a tal component. This constraint works with the TalPanel. It will change the state and/or visuals of the TalPanel when the given button is pressed.
Value:

1. any - pass on any button press
2. "button name" - pass on only that button press

Field Summary

Fields inherited from interface keyboard.KeyboardConstants

BACK, BOTTOM, BUTTON_COLOR, BUTTON_COMMAND, BUTTON_TEXT, BUTTON_TEXT_ATTRIBUTES, BUTTON_TEXT_COLOR, BUTTON_TEXT_FONT_FACE, BUTTON_TEXT_SIZE, DELAY, DOWN, END, END_OF_LINE, ERROR_DETECTED, FINGER, FIRST, FRONT, HOME, INSTRUCTION_POSITION_TO_COORDS, KEYMAP, KEYMAP_COORDS_TO_PANEL_COORDS, LAST, LEFT, NO_BEEP, NO_DELETE, NO_ERROR, NO_WRAP, PAGE_DOWN, PAGE_UP, POSITION, PRESS, RIGHT, SPEED, START_OF_LINE, STRICT, TARGET_BACKGROUND_COLOR, TARGET_HIGHLIGHT, TARGET_HIGHLIGHT_CIRCLE_COLOR, TARGET_HIGHLIGHT_COLOR, TARGET_HIGHLIGHT_TEXT_COLOR, TARGET_POSITION_TO_COORDS, TARGET_TEXT, TARGET_TEXT_ATTRIBUTES, TARGET_TEXT_COLOR, TARGET_TEXT_FONT_FACE, TARGET_TEXT_SIZE, TOP, UP, USER_BACKGROUND_COLOR, USER_CARET, USER_CARET_BLINK_RATE, USER_CARET_COLOR, USER_CARET_HIGHLIGHT_COLOR, USER_CARET_WIDTH, USER_HIGHLIGHT, USER_HIGHLIGHT_CIRCLE_COLOR, USER_HIGHLIGHT_COLOR, USER_HIGHLIGHT_TEXT_COLOR, USER_POSITION_ABOVE, USER_POSITION_BELOW, USER_POSITION_TO_COORDS, USER_TEXT, USER_TEXT_ATTRIBUTES, USER_TEXT_COLOR, USER_TEXT_FONT_FACE, USER_TEXT_SIZE

Fields inherited from interface tal.TalConstants

ADD_PICTURE, ARROW_POSITION, BOTTOM_OUT, BUDDY_IS_VISIBILE, BUTTON_LOGOUT, COMPOSER, COMPOSER_BUTTON_DONT, COMPOSER_BUTTON_SEND, COMPOSER_CAPTION, COMPOSER_GRAY, COMPOSER_SCROLL_BUTTON_BOTTOM, COMPOSER_SCROLL_BUTTON_TOP, COMPOSER_SCROLL_TO_BOTTOM, COMPOSER_SCROLL_TO_TOP, COMPOSER_SCROLLBAR, COMPOSER_STATE, COMPOSER_SUBJECT, COMPOSER_TEXT, COMPOSER_TEXT_IS_VISIBILE, IMAGE_DIR, INBOX, INBOX_BUDDY, INBOX_BUDDY_BUTTON, INBOX_BUDDY_BUTTON_NEW, INBOX_BUDDY_BUTTON_OLD, INBOX_BUDDY_BUTTON_PIC, INBOX_BUDDY_FILE, INBOX_BUDDY_HIGHLIGHT, INBOX_BUDDY_MAIL, INBOX_BUDDY_NAME, INBOX_GRAY, INBOX_SCROLL_BUTTON_BOTTOM, INBOX_SCROLL_BUTTON_TOP, INBOX_SCROLL_TO_BOTTOM, INBOX_SCROLL_TO_TOP, INBOX_SCROLLBAR, INBOX_STATE, PICTURE_IS_VISIBILE, PICTURE_READER, READER, READER_BUTTON_DELETE, READER_BUTTON_REPLY, READER_BUTTON_SAVE, READER_CAPTION, READER_DATE, READER_GRAY, READER_SCROLL_BUTTON_BOTTOM, READER_SCROLL_BUTTON_TOP, READER_SCROLL_TO_BOTTOM, READER_SCROLL_TO_TOP, READER_SCROLLBAR, READER_STATE, READER_SUBJECT, READER_TEXT, READER_TEXT_IS_VISIBILE, SCROLL_BUTTON_DOWN, SCROLL_BUTTON_UP, SCROLLED_STATE, SENT_STATE, TAL_BUTTON, TAL_STATE, TIME

Fields inherited from interface constraint.ConstraintConstants

ACTION_COMMAND_KEY, ACTION_TYPE_SOUND_FINISHED, COMPONENT_FINGER_POSITION, COMPONENT_FINGER_PRESS_POSITION, COMPONENT_HORIZONTAL_ARROW_POSITION, COMPONENT_INSTRUCTION_BACKGROUND_COLOR, COMPONENT_INSTRUCTION_TEXT, COMPONENT_INSTRUCTION_TEXT_ATTRIBUTES, COMPONENT_INSTRUCTION_TEXT_COLOR, COMPONENT_INSTRUCTION_TEXT_FONT_FACE, COMPONENT_INSTRUCTION_TEXT_SIZE, COMPONENT_MOUSE_FINGER_POSITION, COMPONENT_SOUND, COMPONENT_SOUND_IS_PLAYING, COMPONENT_SOUND_QUIT, COMPONENT_TIMER, COMPONENT_VERTICAL_ARROW_POSITION, DIALOG, HIDE_BULLSEYE, LESSON_STOP_ACTION, MOUSE_BULLSEYE, MOUSE_FINGER_IMAGE, NO_TOKEN, PREVIOUS_TASK_COMPLETION_REASON, PROGRESS_PANEL_VISIBLITY, SHOW_BULLSEYE, SKIP_TASK_ACTION, TAL_DIALOG, TASK_FAIL_COUNT, TASK_STATUS, TASK_SUCCEED_COUNT, YES_TOKEN

Fields inherited from interface controller.StateConstants

ACTION, ACTION_TYPE_CONTINUE, ACTION_TYPE_GOTO, ACTION_TYPE_IGNORE, ACTION_TYPE_PANIC, ACTION_TYPE_QUIT, ACTION_TYPE_RESTART, ACTION_TYPE_REVIEW, ACTION_TYPE_SKIP_DRILL, ACTION_TYPE_SKIP_SKILL, ACTION_TYPE_SKIP_TASK, ACTION_TYPE_TASK_STARTED, ACTION_TYPE_TRAIN, CALLBACK_COMMAND, FIRST_CALLBACK, FOURTH_CALLBACK, SECOND_CALLBACK, THIRD_CALLBACK

Constructor Summary

ChangeStateOnScrollText()

Method Summary

void	doAction(TaskProperties tp) Performs the constraint's action.
int	getLevel() Returns the level of callback for this constraint.
int[]	getMonitoredKeyEvents() Returns KEY_TYPED.

Methods inherited from class constraint.LayeredConstraint

getIntValue, getMonitoredMouseEvents, getType, getValue, process, processInit, setValue, toString, valueContains

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeStateOnScrollText

public ChangeStateOnScrollText()

Method Detail

getMonitoredKeyEvents

public int[] getMonitoredKeyEvents()

Returns KEY_TYPED.

Overrides:

getMonitoredKeyEvents in class LayeredConstraint

getLevel

public int getLevel()

Description copied from class: LayeredConstraint

Returns the level of callback for this constraint. The available callback levels are:

1. Used for constraints that react to interface changes.
2. Used for constraints that react to changes made by level 1 constraints.
3. Used for constraints that react to changes made by level 1 and 2 constraints. Constraints at this level should not make changes to apparati that other constraints may be monitoring.
4. Used for constraints that require considerable overhead during callback. Constraints at this level are likely to not have their callbacks activated during heavy user input. Thus, this level can be used by constraints that only want to update during idle time.

A return value of less than 1 is interpreted as level one. A return value of more than 4 is interpreted as level four.

Specified by:

getLevel in class LayeredConstraint

doAction

public void doAction(TaskProperties tp)

Description copied from class: LayeredConstraint

Performs the constraint's action. When a monitored event is seen, and the constraint's callback level is reached, this method is called.

Specified by:

doAction in class LayeredConstraint