├── LICENSE.md ├── README.md ├── screenshots └── screenshot.png ├── src └── com │ └── redpois0n │ └── terminal │ ├── DebugTerminal.java │ ├── InputListener.java │ ├── JTerminal.java │ ├── SizeChangeListener.java │ └── TerminalCaret.java └── test.sh /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # swing-terminal 2 | 3 | Swing component which looks and acts like any normal terminal 4 | 5 | See example DebugTerminal.java to learn how to implement it. 6 | 7 | ![Screenshot](screenshots/screenshot.png) 8 | 9 | ### Supports some ANSI control sequences 10 | 11 | - Bold 12 | - Dim 13 | - Underlined 14 | - Inverted foreground and background -------------------------------------------------------------------------------- /screenshots/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wille/swing-terminal/ccb29d5e4d342b9996c07c4ee324dd3cddd29024/screenshots/screenshot.png -------------------------------------------------------------------------------- /src/com/redpois0n/terminal/DebugTerminal.java: -------------------------------------------------------------------------------- 1 | package com.redpois0n.terminal; 2 | 3 | import java.io.BufferedReader; 4 | import java.io.InputStreamReader; 5 | import java.io.PrintWriter; 6 | 7 | import javax.swing.JFrame; 8 | import javax.swing.JScrollPane; 9 | import javax.swing.UIManager; 10 | 11 | public class DebugTerminal { 12 | 13 | private static Process p; 14 | private static PrintWriter writer; 15 | private static JTerminal terminal; 16 | 17 | public static void main(String[] args) throws Exception { 18 | try { 19 | UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 20 | } catch (Exception ex) { 21 | ex.printStackTrace(); 22 | } 23 | 24 | terminal = new JTerminal(); 25 | 26 | final JScrollPane scrollPane = new JScrollPane(); 27 | scrollPane.setViewportView(terminal); 28 | 29 | terminal.addInputListener(new InputListener() { 30 | @Override 31 | public void processCommand(JTerminal terminal, char c) { 32 | append(c); 33 | } 34 | 35 | @Override 36 | public void onTerminate(JTerminal terminal) { 37 | try { 38 | if (p != null) { 39 | p.destroy(); 40 | } 41 | startShell(); 42 | } catch (Exception e) { 43 | e.printStackTrace(); 44 | } 45 | } 46 | }); 47 | 48 | JFrame frame = new JFrame(); 49 | frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 50 | frame.addKeyListener(terminal.getKeyListener()); 51 | frame.add(scrollPane); 52 | frame.setSize(675, 300); 53 | frame.setVisible(true); 54 | 55 | terminal.append("JTerminal Test\n"); 56 | terminal.append("Debug and Example\n\n"); 57 | 58 | startShell(); 59 | 60 | append("bash test.sh\n"); 61 | } 62 | 63 | public static void startShell() { 64 | try { 65 | String shell = "bash"; 66 | 67 | ProcessBuilder builder = new ProcessBuilder(shell); 68 | builder.redirectErrorStream(true); 69 | p = builder.start(); 70 | writer = new PrintWriter(p.getOutputStream(), true); 71 | 72 | new Thread(new Runnable() { 73 | public void run() { 74 | try { 75 | while (true) { 76 | BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream())); 77 | 78 | String line; 79 | 80 | while ((line = reader.readLine()) != null) { 81 | terminal.append(line + "\n"); 82 | } 83 | } 84 | } catch (Exception e) { 85 | e.printStackTrace(); 86 | } 87 | } 88 | }).start(); 89 | } catch (Exception ex) { 90 | ex.printStackTrace(); 91 | } 92 | } 93 | 94 | public static void append(char c) { 95 | try { 96 | if (c == '\n') { 97 | writer.println(); 98 | } else { 99 | writer.print(c); 100 | } 101 | } catch (Exception ex) { 102 | ex.printStackTrace(); 103 | } 104 | } 105 | 106 | public static void append(String command) { 107 | try { 108 | writer.println(command); 109 | } catch (Exception ex) { 110 | ex.printStackTrace(); 111 | } 112 | } 113 | 114 | } 115 | -------------------------------------------------------------------------------- /src/com/redpois0n/terminal/InputListener.java: -------------------------------------------------------------------------------- 1 | package com.redpois0n.terminal; 2 | 3 | public abstract class InputListener { 4 | 5 | /** 6 | * Called when a command is entered 7 | * @param terminal 8 | * @param c 9 | */ 10 | public abstract void processCommand(JTerminal terminal, char c); 11 | 12 | /** 13 | * Called when Ctrl+C is pressed 14 | * @param terminal 15 | */ 16 | public void onTerminate(JTerminal terminal) { 17 | 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/com/redpois0n/terminal/JTerminal.java: -------------------------------------------------------------------------------- 1 | package com.redpois0n.terminal; 2 | 3 | import java.awt.Color; 4 | import java.awt.Font; 5 | import java.awt.event.KeyEvent; 6 | import java.awt.event.KeyListener; 7 | import java.util.ArrayList; 8 | import java.util.HashMap; 9 | import java.util.List; 10 | import java.util.Map; 11 | 12 | import javax.swing.JTextPane; 13 | import javax.swing.text.AttributeSet; 14 | import javax.swing.text.SimpleAttributeSet; 15 | import javax.swing.text.StyleConstants; 16 | import javax.swing.text.StyleContext; 17 | import javax.swing.text.StyledDocument; 18 | 19 | @SuppressWarnings("serial") 20 | public class JTerminal extends JTextPane { 21 | 22 | public static final String RESET = "0"; 23 | public static final String BOLD = "1"; 24 | public static final String DIM = "2"; 25 | public static final String UNDERLINED = "4"; 26 | public static final String INVERTED = "7"; 27 | public static final String HIDDEN = "8"; 28 | 29 | public static final Font DEFAULT_FONT; 30 | public static final Color DEFAULT_FOREGROUND = Color.white; 31 | public static final Color DEFAULT_BACKGROUND = Color.black; 32 | public static final char NULL_CHAR = '\u0000'; 33 | 34 | public static final char ESCAPE = 27; 35 | public static final String UNIX_CLEAR = ESCAPE + "[H" + ESCAPE + "[J"; 36 | 37 | public static final Map COLORS = new HashMap(); 38 | 39 | static { 40 | DEFAULT_FONT = new Font("monospaced", Font.PLAIN, 14); 41 | 42 | // Default colors 43 | COLORS.put("30", Color.black); 44 | COLORS.put("31", Color.red.darker()); 45 | COLORS.put("32", Color.green.darker()); 46 | COLORS.put("33", Color.yellow.darker()); 47 | COLORS.put("34", Color.blue); 48 | COLORS.put("35", Color.magenta.darker()); 49 | COLORS.put("36", Color.cyan.darker()); 50 | COLORS.put("37", Color.lightGray); 51 | COLORS.put("39", DEFAULT_FOREGROUND); 52 | 53 | // Bright colors 54 | COLORS.put("90", Color.gray); 55 | COLORS.put("91", Color.red); 56 | COLORS.put("92", Color.green); 57 | COLORS.put("93", Color.yellow); 58 | COLORS.put("94", Color.blue.brighter()); 59 | COLORS.put("95", Color.magenta); 60 | COLORS.put("96", Color.cyan); 61 | COLORS.put("97", Color.white); 62 | 63 | // Background 64 | 65 | // Default colors 66 | COLORS.put("40", Color.black); 67 | COLORS.put("41", Color.red.darker()); 68 | COLORS.put("42", Color.green.darker()); 69 | COLORS.put("43", Color.yellow.darker()); 70 | COLORS.put("44", Color.blue); 71 | COLORS.put("45", Color.magenta.darker()); 72 | COLORS.put("46", Color.cyan.darker()); 73 | COLORS.put("47", Color.lightGray); 74 | COLORS.put("49", DEFAULT_FOREGROUND); 75 | 76 | // Bright colors 77 | COLORS.put("100", Color.gray); 78 | COLORS.put("101", Color.red); 79 | COLORS.put("102", Color.green); 80 | COLORS.put("103", Color.yellow); 81 | COLORS.put("104", Color.blue.brighter()); 82 | COLORS.put("105", Color.magenta); 83 | COLORS.put("106", Color.cyan); 84 | COLORS.put("107", Color.white); 85 | } 86 | 87 | public static boolean isBackground(String s) { 88 | return s.startsWith("4") || s.startsWith("10"); 89 | } 90 | 91 | public static Color getColor(String s) { 92 | Color color = DEFAULT_FOREGROUND; 93 | 94 | boolean bright = s.contains("1;"); 95 | s = s.replace("1;", ""); 96 | 97 | if (s.endsWith("m")) { 98 | s = s.substring(0, s.length() - 1); 99 | } 100 | 101 | if (COLORS.containsKey(s)) { 102 | color = COLORS.get(s); 103 | } 104 | 105 | if (bright) { 106 | color = color.brighter(); 107 | } 108 | 109 | return color; 110 | } 111 | 112 | private List inputListeners = new ArrayList(); 113 | 114 | private int last; 115 | private StyledDocument doc; 116 | 117 | public JTerminal() { 118 | this.doc = getStyledDocument(); 119 | setFont(DEFAULT_FONT); 120 | setForeground(DEFAULT_FOREGROUND); 121 | setBackground(DEFAULT_BACKGROUND); 122 | setCaret(new TerminalCaret()); 123 | 124 | addKeyListener(new KeyEventListener()); 125 | addInputListener(new InputListener() { 126 | @Override 127 | public void processCommand(JTerminal terminal, char c) { 128 | 129 | } 130 | }); 131 | } 132 | 133 | /** 134 | * Gets main key listener 135 | * @return 136 | */ 137 | public KeyListener getKeyListener() { 138 | return super.getKeyListeners()[0]; 139 | } 140 | 141 | public synchronized void append(String s) { 142 | last = doc.getLength(); 143 | 144 | boolean fg = true; 145 | Color foreground = DEFAULT_FOREGROUND; 146 | Color background = DEFAULT_BACKGROUND; 147 | boolean bold = false; 148 | boolean underline = false; 149 | boolean dim = false; 150 | 151 | String s1 = ""; 152 | 153 | for (int cp = 0; cp < s.toCharArray().length; cp++) { 154 | char c = s.charAt(cp); 155 | 156 | if (c == ESCAPE) { 157 | append(s1, foreground, background, bold, underline); 158 | char next = s.charAt(cp + 1); 159 | 160 | if (next == '[') { 161 | s1 = ""; 162 | cp++; 163 | while ((c = s.charAt(++cp)) != 'm') { 164 | s1 += c; 165 | } 166 | 167 | String[] attributes = s1.split(";"); 168 | 169 | for (String at : attributes) { 170 | if (at.equals(RESET) || s1.length() == 0) { 171 | foreground = DEFAULT_FOREGROUND; 172 | background = DEFAULT_BACKGROUND; 173 | fg = true; 174 | underline = false; 175 | dim = false; 176 | bold = false; 177 | } else if (at.equals(BOLD)) { 178 | bold = !bold; 179 | } else if (at.equals(DIM)) { 180 | dim = !dim; 181 | } else if (at.equals(INVERTED)) { 182 | fg = !fg; 183 | if (fg) { 184 | Color temp = foreground; 185 | foreground = background; 186 | background = temp; 187 | } else { 188 | Color temp = background; 189 | background = foreground; 190 | foreground = temp; 191 | } 192 | } else if (at.equals(UNDERLINED)) { 193 | underline = !underline; 194 | } else if (s1.length() > 0) { 195 | Color color = getColor(at); 196 | 197 | if (isBackground(at)) { 198 | background = color; 199 | } else { 200 | foreground = color; 201 | } 202 | 203 | if (!fg) { // inverted 204 | Color temp = background; 205 | background = foreground; 206 | foreground = temp; 207 | } 208 | 209 | if (dim) { 210 | foreground = foreground.brighter(); 211 | } 212 | } 213 | } 214 | 215 | s1 = ""; 216 | continue; 217 | } 218 | } 219 | 220 | s1 += c; 221 | } 222 | 223 | if (s1.length() > 0) { 224 | append(s1, foreground, background, bold, underline); 225 | } 226 | 227 | last = doc.getLength(); 228 | 229 | setCursorInEnd(); 230 | 231 | } 232 | 233 | public void append(String s, Color fg, Color bg, boolean bold, boolean underline) { 234 | StyleContext sc = StyleContext.getDefaultStyleContext(); 235 | 236 | setCursorInEnd(); 237 | 238 | setCharacterAttributes(sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, fg), false); 239 | setCharacterAttributes(sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Background, bg), false); 240 | setCharacterAttributes(sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Bold, bold), false); 241 | setCharacterAttributes(sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Underline, underline), false); 242 | 243 | replaceSelection(s); 244 | } 245 | 246 | public void setCursorInEnd() { 247 | setCaretPosition(doc.getLength()); 248 | } 249 | 250 | /** 251 | * Called when key pressed, checks if character is valid and checks for combinations such as Ctrl+C 252 | * @param e 253 | */ 254 | public void keyPressed(char c) { 255 | for (InputListener l : inputListeners) { 256 | l.processCommand(this, c); 257 | } 258 | } 259 | 260 | public class KeyEventListener implements KeyListener { 261 | 262 | @Override 263 | public void keyPressed(KeyEvent e) { 264 | if (e.getKeyCode() == KeyEvent.VK_ENTER) { 265 | JTerminal.this.keyPressed('\n'); 266 | } 267 | } 268 | 269 | @Override 270 | public void keyReleased(KeyEvent e) { 271 | if (e.getKeyCode() == KeyEvent.VK_CONTROL) { 272 | //ctrl = false; 273 | } 274 | } 275 | 276 | @Override 277 | public void keyTyped(KeyEvent e) { 278 | JTerminal.this.keyPressed(e.getKeyChar()); 279 | } 280 | } 281 | 282 | public void addInputListener(InputListener listener) { 283 | inputListeners.add(listener); 284 | } 285 | 286 | public void removeInputListener(InputListener listener) { 287 | inputListeners.remove(listener); 288 | } 289 | 290 | } 291 | -------------------------------------------------------------------------------- /src/com/redpois0n/terminal/SizeChangeListener.java: -------------------------------------------------------------------------------- 1 | package com.redpois0n.terminal; 2 | 3 | public abstract interface SizeChangeListener { 4 | 5 | public abstract void sizeChange(JTerminal terminal, boolean reset, int width, int height); 6 | 7 | } 8 | -------------------------------------------------------------------------------- /src/com/redpois0n/terminal/TerminalCaret.java: -------------------------------------------------------------------------------- 1 | package com.redpois0n.terminal; 2 | 3 | import java.awt.Color; 4 | import java.awt.Graphics; 5 | import java.awt.Rectangle; 6 | 7 | import javax.swing.text.DefaultCaret; 8 | import javax.swing.text.JTextComponent; 9 | 10 | @SuppressWarnings("serial") 11 | public class TerminalCaret extends DefaultCaret { 12 | 13 | protected synchronized void damage(Rectangle r) { 14 | if (r == null) 15 | return; 16 | 17 | x = r.x; 18 | y = r.y; 19 | height = r.height; 20 | 21 | if (width <= 0) { 22 | width = getComponent().getWidth(); 23 | } 24 | 25 | repaint(); 26 | } 27 | 28 | public void paint(Graphics g) { 29 | JTextComponent comp = getComponent(); 30 | 31 | if (comp == null) { 32 | return; 33 | } 34 | 35 | int dot = getDot(); 36 | Rectangle r = null; 37 | char dotChar; 38 | 39 | try { 40 | r = comp.modelToView(dot); 41 | if (r == null) { 42 | return; 43 | } 44 | dotChar = comp.getText(dot, 1).charAt(0); 45 | } catch (Exception e) { 46 | e.printStackTrace(); 47 | return; 48 | } 49 | 50 | if ((x != r.x) || (y != r.y)) { 51 | repaint(); 52 | x = r.x; 53 | y = r.y; 54 | height = r.height; 55 | } 56 | 57 | g.setColor(Color.white); 58 | g.setXORMode(comp.getBackground()); 59 | 60 | width = g.getFontMetrics().charWidth(dotChar); 61 | 62 | if (isVisible()) { 63 | g.fillRect(r.x, r.y, width, r.height); 64 | } 65 | } 66 | } -------------------------------------------------------------------------------- /test.sh: -------------------------------------------------------------------------------- 1 | echo -e "Default attributes\n" 2 | echo -e "\e[1mBold" 3 | echo -e "\e[2mDim" 4 | echo -e "\e[4mUnderlined" 5 | echo -e "\e[5mBlink" 6 | echo -e "\e[7mInverted" 7 | echo -e "\e[8mHidden" 8 | 9 | echo -e "\nForeground colors\n" 10 | 11 | echo -e "\e[39mDefault" 12 | echo -e "\e[30mBlack" 13 | echo -e "\e[31mRed" 14 | echo -e "\e[32mGreen" 15 | echo -e "\e[33mYellow" 16 | echo -e "\e[34mBlue" 17 | echo -e "\e[35mMagenta" 18 | echo -e "\e[36mCyan" 19 | echo -e "\e[37mLight gray" 20 | echo -e "\e[90mDark gray" 21 | echo -e "\e[91mLight red" 22 | echo -e "\e[92mLight green" 23 | echo -e "\e[93mLight yellow" 24 | echo -e "\e[94mLight blue" 25 | echo -e "\e[95mLight magenta" 26 | echo -e "\e[96mLight cyan" 27 | echo -e "\e[97mWhite" 28 | 29 | echo -e "\nBackground colors\n" 30 | 31 | echo -e "\e[49mDefault" 32 | echo -e "\e[40mBlack" 33 | echo -e "\e[41mRed" 34 | echo -e "\e[42mGreen" 35 | echo -e "\e[43mYellow" 36 | echo -e "\e[44mBlue" 37 | echo -e "\e[45mMagenta" 38 | echo -e "\e[46mCyan" 39 | echo -e "\e[47mLight gray" 40 | echo -e "\e[100mDark gray" 41 | echo -e "\e[101mLight red" 42 | echo -e "\e[102mLight green" 43 | echo -e "\e[103mLight yellow" 44 | echo -e "\e[104mLight blue" 45 | echo -e "\e[105mLight magenta" 46 | echo -e "\e[106mLight cyan" 47 | echo -e "\e[107mWhite" 48 | 49 | echo -e "\nOther tests\n" 50 | 51 | echo -e "\e[1;31;42mGreen background, red foreground, bold\e[0m" 52 | echo -e "\e[1;4mBold and Underlined" 53 | 54 | for clbg in {40..47} {100..107} 49 ; do 55 | #Foreground 56 | for clfg in {30..37} {90..97} 39 ; do 57 | #Formatting 58 | for attr in 0 1 2 4 5 7 ; do 59 | #Print the result 60 | echo -en "\e[${attr};${clbg};${clfg}m[${attr};${clbg};${clfg}m \e[0m" 61 | done 62 | echo #Newline 63 | done 64 | done --------------------------------------------------------------------------------