com.hipipal.texteditor.undo
Class TextChangeWatcher

java.lang.Object
  com.hipipal.texteditor.undo.TextChangeWatcher

All Implemented Interfaces:

Constants

public class TextChangeWatcher
extends java.lang.Object
implements Constants

Field Summary

Fields inherited from interface com.hipipal.texteditor.common.Constants

ACTION_WIDGET_OPEN, BACKUP_FILE_NAME, COLOR_CLASSIC, COLOR_DRACULA, COLOR_MATRIX, COLOR_NEGATIVE, COLOR_SKY, ENC_ASCII, ENC_LATIN, ENC_UTF8, EOL_LINUX, EOL_MAC, EOL_WINDOWS, EXTRA_FORCE_READ_ONLY, EXTRA_REQUEST_CODE, FONT_FILE_NAME, FONT_FOLDER_NAME, MENU_ID_ABOUT, MENU_ID_NEW, MENU_ID_OPEN, MENU_ID_OPEN_RECENT, MENU_ID_QUIT, MENU_ID_REDO, MENU_ID_SAVE, MENU_ID_SAVE_AS, MENU_ID_SEARCH, MENU_ID_SETTINGS, MENU_ID_UNDO, PREFERENCE_ALLOW_UNDO, PREFERENCE_AUTO_SAVE, PREFERENCE_AUTO_SAVE_OVERWRITE, PREFERENCE_BACK_BUTTON_AS_UNDO, PREFERENCE_COLOR_THEME, PREFERENCE_ENCODING, PREFERENCE_END_OF_LINES, PREFERENCE_FLING_TO_SCROLL, PREFERENCE_FONT, PREFERENCE_HIGHLIGHT, PREFERENCE_HOME_PAGE_PATH, PREFERENCE_MAX_RECENTS, PREFERENCE_MAX_UNDO_STACK, PREFERENCE_RECENTS, PREFERENCE_SEARCH_MATCH_CASE, PREFERENCE_SEARCHWRAP, PREFERENCE_SELECT_FONT, PREFERENCE_SHOW_LINE_NUMBERS, PREFERENCE_TEXT_SIZE, PREFERENCE_USE_HOME_PAGE, PREFERENCE_WORDWRAP, PREFERENCES_NAME, REQUEST_FONT, REQUEST_HOME_PAGE, REQUEST_OPEN, REQUEST_RECENT, REQUEST_SAVE_AS, RESULT_ERROR, STORAGE, STORAGE_PATH, TAG, TEXT_SIZE_MAX, TEXT_SIZE_MIN

Constructor Summary

TextChangeWatcher()

Method Summary

void	afterChange(java.lang.CharSequence s, int start, int before, int count) A change to the text s has been made, where the count characters starting at start have replaced the substring of length before
void	beforeChange(java.lang.CharSequence s, int start, int count, int after) A change to the text s will be made, where the count characters starting at start will be replaced by after characters
void	printStack() Prints the current stack
void	processDelete(java.lang.CharSequence s, int start, int count)
void	processInsert(java.lang.CharSequence s, int start, int count)
int	undo(android.text.Editable text) Undo the last operation

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TextChangeWatcher

public TextChangeWatcher()

Method Detail

undo

public int undo(android.text.Editable text)

Undo the last operation

Parameters:

text - the text to undo on

Returns:

the caret position

beforeChange

public void beforeChange(java.lang.CharSequence s,
                         int start,
                         int count,
                         int after)

A change to the text s will be made, where the count characters starting at start will be replaced by after characters

Parameters:

s - the sequence being changed

start - the start index

count - the number of characters that will change

after - the number of characters that will replace the old ones

afterChange

public void afterChange(java.lang.CharSequence s,
                        int start,
                        int before,
                        int count)

A change to the text s has been made, where the count characters starting at start have replaced the substring of length before

Parameters:

s - the sequence being changed

start - the start index

before - the number of character that were replaced

count - the number of characters that will change

processInsert

public void processInsert(java.lang.CharSequence s,
                          int start,
                          int count)

Parameters:

s - the sequence being modified

start - the first character index

count - the number of inserted text

processDelete

public void processDelete(java.lang.CharSequence s,
                          int start,
                          int count)

Parameters:

s - the sequence being modified

start - the first character index

count - the number of inserted text

printStack

public void printStack()

Prints the current stack