--- /dev/null
+/**
+ * Jexer - Java Text User Interface
+ *
+ * License: LGPLv3 or later
+ *
+ * This module is licensed under the GNU Lesser General Public License
+ * Version 3. Please see the file "COPYING" in this directory for more
+ * information about the GNU Lesser General Public License Version 3.
+ *
+ * Copyright (C) 2015 Kevin Lamonte
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see
+ * http://www.gnu.org/licenses/, or write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer.tterminal;
+
+import jexer.bits.Cell;
+import jexer.bits.CellAttributes;
+
+/**
+ * This represents a single line of the display buffer.
+ */
+public final class DisplayLine {
+ /**
+ * Maximum line length.
+ */
+ private static final int MAX_LINE_LENGTH = 256;
+
+ /**
+ * The characters/attributes of the line.
+ */
+ private Cell [] chars;
+
+ /**
+ * Get the Cell at a specific column.
+ *
+ * @param idx the character index
+ * @return the Cell
+ */
+ public Cell charAt(final int idx) {
+ return chars[idx];
+ }
+
+ /**
+ * Get the length of this line.
+ *
+ * @return line length
+ */
+ public int length() {
+ return chars.length;
+ }
+
+ /**
+ * Double-width line flag.
+ */
+ private boolean doubleWidth = false;
+
+ /**
+ * Get double width flag.
+ *
+ * @return double width
+ */
+ public boolean isDoubleWidth() {
+ return doubleWidth;
+ }
+
+ /**
+ * Set double width flag.
+ *
+ * @param doubleWidth new value for double width flag
+ */
+ public void setDoubleWidth(final boolean doubleWidth) {
+ this.doubleWidth = doubleWidth;
+ }
+
+ /**
+ * Double height line flag. Valid values are:
+ *
+ * <p><pre>
+ * 0 = single height
+ * 1 = top half double height
+ * 2 = bottom half double height
+ * </pre>
+ */
+ private int doubleHeight = 0;
+
+ /**
+ * Get double height flag.
+ *
+ * @return double height
+ */
+ public int getDoubleHeight() {
+ return doubleHeight;
+ }
+
+ /**
+ * Set double height flag.
+ *
+ * @param doubleHeight new value for double height flag
+ */
+ public void setDoubleHeight(final int doubleHeight) {
+ this.doubleHeight = doubleHeight;
+ }
+
+ /**
+ * DECSCNM - reverse video. We copy the flag to the line so that
+ * reverse-mode scrollback lines still show inverted colors correctly.
+ */
+ private boolean reverseColor = false;
+
+ /**
+ * Get reverse video flag.
+ *
+ * @return reverse video
+ */
+ public boolean isReverseColor() {
+ return reverseColor;
+ }
+
+ /**
+ * Set double-height flag.
+ *
+ * @param reverseColor new value for reverse video flag
+ */
+ public void setReverseColor(final boolean reverseColor) {
+ this.reverseColor = reverseColor;
+ }
+
+ /**
+ * Public constructor sets everything to drawing attributes.
+ *
+ * @param attr current drawing attributes
+ */
+ public DisplayLine(final CellAttributes attr) {
+ chars = new Cell[MAX_LINE_LENGTH];
+ for (int i = 0; i < chars.length; i++) {
+ chars[i] = new Cell();
+ chars[i].setTo(attr);
+ }
+ }
+
+ /**
+ * Insert a character at the specified position.
+ *
+ * @param idx the character index
+ * @param newCell the new Cell
+ */
+ public void insert(final int idx, final Cell newCell) {
+ System.arraycopy(chars, idx, chars, idx + 1, chars.length - idx - 1);
+ chars[idx] = newCell;
+ }
+
+ /**
+ * Replace character at the specified position.
+ *
+ * @param idx the character index
+ * @param newCell the new Cell
+ */
+ public void replace(final int idx, final Cell newCell) {
+ chars[idx] = newCell;
+ }
+
+ /**
+ * Set the Cell at the specified position to the blank (reset).
+ *
+ * @param idx the character index
+ */
+ public void setBlank(final int idx) {
+ chars[idx].reset();
+ }
+
+ /**
+ * Set the character (just the char, not the attributes) at the specified
+ * position to ch.
+ *
+ * @param idx the character index
+ * @param ch the new char
+ */
+ public void setChar(final int idx, final char ch) {
+ chars[idx].setChar(ch);
+ }
+
+ /**
+ * Set the attributes (just the attributes, not the char) at the
+ * specified position to attr.
+ *
+ * @param idx the character index
+ * @param attr the new attributes
+ */
+ public void setAttr(final int idx, final CellAttributes attr) {
+ chars[idx].setAttr(attr);
+ }
+
+ /**
+ * Delete character at the specified position, filling in new characters
+ * on the right with newCell.
+ *
+ * @param idx the character index
+ * @param newCell the new Cell
+ */
+ public void delete(final int idx, final Cell newCell) {
+ System.arraycopy(chars, idx + 1, chars, idx, chars.length - idx - 1);
+ chars[chars.length - 1] = newCell;
+ }
+
+}
git://git.nikiroo.be / fanfix.git / blobdiff