org.aesh.readline.terminal.formatting.TerminalTextStyle Maven / Gradle / Ivy
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* Copyright 2014 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.aesh.readline.terminal.formatting;
/**
* Specify a text style.
* There are some values that nullify other values.
* eg:
* - specifying faint AND bold will nullify bold
* bold AND italic will nullify bold
*
* @author Ståle W. Pedersen
*/
public class TerminalTextStyle {
private boolean bold = false;
private boolean faint = false;
private boolean italic = false;
private boolean underline = false;
private boolean blink = false;
private boolean invert = false;
private boolean crossedOut = false;
private boolean conceal = false;
private int length = -1;
private static byte BOLD_OFF = 22;
private static byte ITALIC_OFF = 23;
private static byte UNDERLINE_OFF = 24;
private static byte BLINK_OFF = 25;
private static byte INVERT_OFF = 27;
private static byte REVEAL = 28;
private static byte CROSSED_OUT_OFF = 29;
private static char SEPARATOR = ';';
public TerminalTextStyle() {
}
public TerminalTextStyle(CharacterType type) {
if(type == CharacterType.BOLD)
bold = true;
else if(type == CharacterType.FAINT)
faint = true;
else if(type == CharacterType.ITALIC)
italic = true;
else if(type == CharacterType.UNDERLINE)
underline = true;
else if(type == CharacterType.BLINK)
blink = true;
else if(type == CharacterType.INVERT)
invert = true;
else if(type == CharacterType.CROSSED_OUT)
crossedOut = true;
else if(type == CharacterType.CONCEAL)
conceal = true;
}
public TerminalTextStyle(boolean bold, boolean faint, boolean italic, boolean underline,
boolean blink, boolean invert, boolean crossedOut) {
this.bold = bold;
this.faint = faint;
this.italic = italic;
this.underline = underline;
this.blink = blink;
this.invert = invert;
this.crossedOut = crossedOut;
}
public boolean isBold() {
return bold;
}
public void setBold(boolean bold) {
this.bold = bold;
}
public boolean isFaint() {
return faint;
}
public boolean isItalic() {
return italic;
}
public void setItalic(boolean italic) {
this.italic = italic;
}
public boolean isUnderline() {
return underline;
}
public void setUnderline(boolean underline) {
this.underline = underline;
}
public boolean isBlink() {
return blink;
}
public void setBlink(boolean blink) {
this.blink = blink;
}
public boolean isInvert() {
return invert;
}
public void setInvert(boolean invert) {
this.invert = invert;
}
public boolean isCrossedOut() {
return crossedOut;
}
public void setCrossedOut(boolean crossedOut) {
this.crossedOut = crossedOut;
}
public boolean isConceal() {
return conceal;
}
public void setConceal(boolean conceal) {
this.conceal = conceal;
}
public boolean isFormatted() {
return !(!bold && !blink && !faint && !italic && !underline && !invert && !crossedOut);
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
if(bold) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.BOLD.getValue());
}
if(faint) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.FAINT.getValue());
}
if(italic) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.ITALIC.getValue());
}
if(underline) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.UNDERLINE.getValue());
}
if(blink) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.BLINK.getValue());
}
if(invert) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.INVERT.getValue());
}
if(crossedOut) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.CROSSED_OUT.getValue());
}
if(conceal) {
if(builder.length() > 0)
builder.append(';');
builder.append(CharacterType.CONCEAL.getValue());
}
if(length < 0)
length = builder.length();
return builder.toString();
}
public int getLength() {
if(length < 0)
toString();
return length;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof TerminalTextStyle)) return false;
TerminalTextStyle that = (TerminalTextStyle) o;
return blink == that.blink &&
bold == that.bold &&
crossedOut == that.crossedOut &&
faint == that.faint &&
invert == that.invert &&
italic == that.italic &&
underline == that.underline &&
conceal == that.conceal;
}
@Override
public int hashCode() {
int result = (bold ? 1 : 0);
result = 31 * result + (faint ? 1 : 0);
result = 31 * result + (italic ? 1 : 0);
result = 31 * result + (underline ? 1 : 0);
result = 31 * result + (blink ? 1 : 0);
result = 31 * result + (invert ? 1 : 0);
result = 31 * result + (crossedOut ? 1 : 0);
result = 31 * result + (conceal ? 1 : 0);
return result;
}
public String getValueComparedToPrev(TerminalTextStyle prev) {
StringBuilder builder = new StringBuilder();
if(!this.equals(prev)) {
if(prev.isBold() || prev.isFaint()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(BOLD_OFF);
}
if(prev.isUnderline()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(UNDERLINE_OFF);
}
if(prev.isItalic()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(ITALIC_OFF);
}
if(prev.isBlink()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(BLINK_OFF);
}
if(prev.isInvert()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(INVERT_OFF);
}
if(prev.isCrossedOut()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(CROSSED_OUT_OFF);
}
if(prev.isConceal()) {
if(builder.length() > 0)
builder.append(SEPARATOR);
builder.append(REVEAL);
}
}
String str = toString();
if(str.length() > 0 && builder.length() > 0)
return builder.append(SEPARATOR).append(str).toString();
else
return builder.append(str).toString();
}
}
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