001: /*
002: *
003: *
004: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006: *
007: * This program is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU General Public License version
009: * 2 only, as published by the Free Software Foundation.
010: *
011: * This program is distributed in the hope that it will be useful, but
012: * WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * General Public License version 2 for more details (a copy is
015: * included at /legal/license.txt).
016: *
017: * You should have received a copy of the GNU General Public License
018: * version 2 along with this work; if not, write to the Free Software
019: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA
021: *
022: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023: * Clara, CA 95054 or visit www.sun.com if you need additional
024: * information or have any questions.
025: */
026: package javax.microedition.lcdui;
027:
028: import com.sun.midp.lcdui.DynamicCharacterArray;
029:
030: /**
031: * Look and Feel interface used by TextField.
032: * <p>
033: * See <a href="doc-files/naming.html">Naming Conventions</a>
034: * for information about method naming conventions.
035: */
036: interface TextFieldLF extends ItemLF {
037:
038: /**
039: * Update the character buffer in TextField with latest user input.
040: * @return true if there is new user input updated in the buffer
041: */
042: boolean lUpdateContents();
043:
044: /**
045: * Notifies L&F of a content change in the corresponding TextField.
046: */
047: void lSetChars();
048:
049: /**
050: * Notifies L&F of a character insertion in the corresponding TextField.
051: * @param data the source of the character data
052: * @param offset the beginning of the region of characters copied
053: * @param length the number of characters copied
054: * @param position the position at which insertion occurred
055: */
056: void lInsert(char data[], int offset, int length, int position);
057:
058: /**
059: * Notifies L&F of character deletion in the corresponding TextField.
060: * @param offset the beginning of the deleted region
061: * @param length the number of characters deleted
062: */
063: void lDelete(int offset, int length);
064:
065: /**
066: * Notifies L&F of a maximum size change in the corresponding TextField.
067: * @param maxSize - the new maximum size
068: */
069: void lSetMaxSize(int maxSize);
070:
071: /**
072: * Gets the current input position.
073: * @return the current caret position, <code>0</code> if at the beginning
074: */
075: int lGetCaretPosition();
076:
077: /**
078: * Notifies L&F that constraints have to be changed.
079: */
080: void lSetConstraints();
081:
082: /**
083: * Validate a given character array against a constraints.
084: *
085: * @param buffer a character array
086: * @param constraints text input constraints
087: * @return true if constraints is met by the character array
088: */
089: public boolean lValidate(DynamicCharacterArray buffer,
090: int constraints);
091:
092: /**
093: * Notifies L&F that preferred initial input mode was changed.
094: * @param characterSubset a string naming a Unicode character subset,
095: * or <code>null</code>
096: */
097: void lSetInitialInputMode(String characterSubset);
098:
099: /**
100: * Notifies item that it has been recently deleted
101: */
102: void itemDeleted();
103: }
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