+++ /dev/null
-/*
- * Jexer - Java Text User Interface
- *
- * The MIT License (MIT)
- *
- * Copyright (C) 2017 Kevin Lamonte
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer.teditor;
-
-import jexer.bits.CellAttributes;
-
-/**
- * A Word represents text that was entered by the user. It can be either
- * whitespace or non-whitespace.
- *
- * Very dumb highlighting is supported, it has no sense of parsing (not even
- * comments). For now this only highlights some Java keywords and
- * puctuation.
- */
-public class Word {
-
- /**
- * The color to render this word as on screen.
- */
- private CellAttributes color = new CellAttributes();
-
- /**
- * The default color for the TEditor class.
- */
- private CellAttributes defaultColor = null;
-
- /**
- * The text highlighter to use.
- */
- private Highlighter highlighter = null;
-
- /**
- * The actual text of this word. Average word length is 6 characters,
- * with a lot of shorter ones, so start with 3.
- */
- private StringBuilder text = new StringBuilder(3);
-
- /**
- * Get the color used to display this word on screen.
- *
- * @return the color
- */
- public CellAttributes getColor() {
- return new CellAttributes(color);
- }
-
- /**
- * Set the color used to display this word on screen.
- *
- * @param color the color
- */
- public void setColor(final CellAttributes color) {
- color.setTo(color);
- }
-
- /**
- * Get the text to display.
- *
- * @return the text
- */
- public String getText() {
- return text.toString();
- }
-
- /**
- * Get the on-screen display length.
- *
- * @return the number of cells needed to display this word
- */
- public int getDisplayLength() {
- // For now, just use the text length. In the future, this will be a
- // grapheme count.
-
- // TODO: figure out how to handle the tab character. Do we have a
- // global tab stops list and current word position?
- return text.length();
- }
-
- /**
- * See if this is a whitespace word. Note that empty string is
- * considered whitespace.
- *
- * @return true if this word is whitespace
- */
- public boolean isWhitespace() {
- if (text.length() == 0) {
- return true;
- }
- if (Character.isWhitespace(text.charAt(0))) {
- return true;
- }
- return false;
- }
-
- /**
- * Construct a word with one character.
- *
- * @param ch the first character of the word
- * @param defaultColor the color for unhighlighted text
- * @param highlighter the highlighter to use
- */
- public Word(final char ch, final CellAttributes defaultColor,
- final Highlighter highlighter) {
-
- this.defaultColor = defaultColor;
- this.highlighter = highlighter;
- text.append(ch);
- }
-
- /**
- * Construct a word with an empty string.
- *
- * @param defaultColor the color for unhighlighted text
- * @param highlighter the highlighter to use
- */
- public Word(final CellAttributes defaultColor,
- final Highlighter highlighter) {
-
- this.defaultColor = defaultColor;
- this.highlighter = highlighter;
- }
-
- /**
- * Perform highlighting.
- */
- public void applyHighlight() {
- color.setTo(defaultColor);
- if (highlighter == null) {
- return;
- }
- String key = text.toString();
- CellAttributes newColor = highlighter.getColor(key);
- if (newColor != null) {
- color.setTo(newColor);
- }
- }
-
- /**
- * Add a character to this word. If this is a whitespace character
- * adding to a non-whitespace word, create a new word and return that;
- * similarly if this a non-whitespace character adding to a whitespace
- * word, create a new word and return that.
- *
- * @param ch the new character to add
- * @return either this word (if it was added), or a new word that
- * contains ch
- */
- public Word addChar(final char ch) {
- if (text.length() == 0) {
- text.append(ch);
- return this;
- }
-
- // Give the highlighter the option to split here.
- if (highlighter != null) {
- if (highlighter.shouldSplit(ch)
- || highlighter.shouldSplit(text.charAt(0))
- ) {
- Word newWord = new Word(ch, defaultColor, highlighter);
- return newWord;
- }
- }
-
- // Highlighter didn't care, so split at whitespace.
- if (Character.isWhitespace(text.charAt(0))
- && Character.isWhitespace(ch)
- ) {
- // Adding to a whitespace word, keep at it.
- text.append(ch);
- return this;
- }
- if (!Character.isWhitespace(text.charAt(0))
- && !Character.isWhitespace(ch)
- ) {
- // Adding to a non-whitespace word, keep at it.
- text.append(ch);
- return this;
- }
-
- // Switching from whitespace to non-whitespace or vice versa, so
- // split here.
- Word newWord = new Word(ch, defaultColor, highlighter);
- return newWord;
- }
-
-}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff