- A set of classes to managedly control terminal styles and colors.
- A set of classes that provide some table rendering functionality.
- a fluent syntax TableBuilder class.
- Very simple text input components. like StyledTextInputBox.
This library does not depend on any external dependency.
<dependency>
<groupId>com.acidmanic</groupId>
<artifactId>console-tools</artifactId>
<version>1.0.0</version>
</dependency> implementation 'com.acidmanic:console-tools:1.0.0
To print styled text, you can use the class: Terminal. It can move the cursor, set the foreground and background colors separately. Another way for styling printed text, is to call Terminal.setScreenAttributes() method with a TerminalStyle object. This class contains more styling preferences. An object of type TerminalStyle, can be constructed and configured manually using it's accessors. you can also use one of the built-in Styles available in TerminalStyles class.
By default, Terminal will control System.out stream, but you can change this by passing your subjected stream to its constructor.
Printing tables is easy! Table is a class that wraps a list of Rows, and a Row is basically a list of Boxes. any Box can be added to a Row as a cell. there is also a Cell class that you can use for creating cells. For a Cell. Cell objects can have their texts modified due to different situations. currently the only feature that is covered this way, is to break (word-wrap) text when a maximum width is set for the cell. you can unset the maximum width by setting it to -1.
A Table itself, is also a Box, which means you can use them as cells for an outer table.
A Box is a renderable object that you can set Padding, Border, Margin, Outline, Width and Height for it. Therefore both Table and Cell objects have these properties available.
To set border for a Box, you will need an AsciiBorder object. The AsciiBorder object will define the style of border. The hard way for creating an AsciiBorder object is to instantiate one, and pass needed characters for each edge and corner, through its constructor or accessor methods. If you just need a normal border around your renderable, you can easily use one of the built-in borders available in AsciiBorders.
You can instanciate Table, Row and Cell classes, set their properties to desired values. and compose a table manually this way. but this approach takes too many lines of code specially when your table gets complex. the better alternative is to use TableBuilder class. This class provides a lot of fluent syntax methods that can form a simple or a complex table with very shorter and more readable code.
There are also the RowBuilder class and CellBuilder class, which you would not need to use them unless you want to create, for example, a Cell which is not supposed to belong to any table or any rows and it might be rendered directly. The same for the RowBuider class. TableBuilder though uses these classes when you call TableBuilder.cell(.) or TableBuilder.row(.) with a lambda expression.
⚠ Note: TableBuilder needs to setup properties for a tree-structured data. considering the table as root, each row as a child for the root, then each cell can be a leaf or a root for another tree. so when you set a property for a row/cell, which row/cell would that be? the answer is "Always the last one". therefore, for example, tableBuilder.text("SomeText") will set the text for last cell added to the last row. in other words: Think sequentially when you use TableBuilder, and it will work as expected. And sequentially would mean: top to bottom for rows, and left to right for cells.
⚠ Note: Setting a cell property when there is no cell added, will not lead to an exception. instead a new cell will be created and added to last row, and the given property will be added to it. The same will be for when there is no row added. so you don't have to call row(.) and cell(.) methods for first row and for first cells.
In the package com.acidmanic.consoletools.drawing.interaction, the classes TextInput, InputTextBox and StyledTextInput are defined. these classes are driven from Input. Input is an abstract class which its goal is to receive information needed to construct an object of Type T.
TextInput object, simply prints a message (label) and reads the input stream for users response.
InputTextBox object will draw a box on the console placing the label and users answer in it.
StyledTextInput object is almost the same as InputTextBox except that it uses Styling functionalities to style the box.
You can find this example codes in Test Packages, under com.acidmanic.consoletools.examples. except for ExampleCode5 witch is placed in Source Packages for being able to run/test it from real command-line after application build.
ExampleCode 1 shows how to print text with different styles on any print-stream.
ExampleCodes 2 to 4 show how to create tables manually. the main goal here is to show what are table components and what we can do with them. but in practice I personally prefer to use the TableBuilder class. ExampleCode6 provides an example of composeing tables using TableBuilder.
ExampleCode5 shows a usage of InputTextBox.
ExampleCode6 is again about creating tables. but this time the table is being created using a TableBuilder with fluent syntax (chainable) methods.
ExampleCode1
Terminal terminal = new Terminal();
/* Print Black Text on Red background */
terminal.setScreenAttributes(Terminal.Constants.FOREGROUND_BLACK,
Terminal.Constants.BACKGROUND_RED);
System.out.println("Black Text On Red Background");
/* Print Styled Text using Style class */
TerminalStyle style = new TerminalStyle(Terminal.Constants.FOREGROUND_WHITE,
Terminal.Constants.BACKGROUND_BLUE,
Terminal.Constants.BRIGHTNESS_DIM);
terminal.setScreenAttributes(style);
System.out.println("A dim white text printed on blue background");
/* Using built-in styles */
terminal.setScreenAttributes(TerminalStyles.Matrix);
System.out.println("Matrix like text, using built-in styles");
/* Print On Other Stream (In this case: System.err) */
terminal = new Terminal(System.err);
terminal.setScreenAttributes(TerminalStyles.Matrix);
System.err.println("Matrix like text, using built-in styles");
ExampleCode2
/* create a table */
Table table = new Table();
/* create first row, and add to table */
Row firstRow = new Row();
table.getRows().add(firstRow);
/* create two cells for first row */
Cell firstRowLeft = new Cell("Left-Cell");
Cell firstRowRight = new Cell("Right-Cell");
firstRow.getCells().add(firstRowLeft);
firstRow.getCells().add(firstRowRight);
/* That's it! we can print the table now */
System.out.println(table.render());
/* Set a padding for all cells in table */
table.setCellsPadding(new Padding(2));
line("Table With Padding");// print a line and a message
System.out.println(table.render());
/* Make cells for second row bordered */
Row secondRow = new Row();
Cell secondRowLeft = new Cell("Left-Cell");
Cell secondRowRight = new Cell("Right-Cell");
secondRowLeft.setBorder(AsciiBorders.SOLID);
secondRowRight.setBorder(AsciiBorders.SOLID);
secondRow.getCells().add(secondRowLeft);
secondRow.getCells().add(secondRowRight);
table.getRows().add(secondRow);
line("Bordered Cells");
System.out.println(table.render());
/* border up the table! */
table.setBorder(AsciiBorders.DOUBLELINE);
line("Bordered Table");
System.out.println(table.render());ExampleCode3
Table outerTable = new Table();
outerTable.setBorder(AsciiBorders.DOUBLELINE);
/* Adding a table as a cell */
Table innerTable = new Table();
innerTable.getRows().add(new Row());
innerTable.getRows().add(new Row());
innerTable.getRows().get(0).getCells().add(new Cell("Inner00"));
innerTable.getRows().get(0).getCells().add(new Cell("Inner01"));
innerTable.getRows().get(1).getCells().add(new Cell("Inner10"));
innerTable.getRows().get(1).getCells().add(new Cell("Inner11"));
innerTable.setCellsBorders(AsciiBorders.SOLID);
innerTable.setBorder(AsciiBorders.SOLID);
line("A Simple Table to be used as one cell");
System.out.println(innerTable.render());
Row row = new Row();
/* Add a simple cell first */
row.getCells().add(new Cell("A Cell At Left"));
/* Add innerTable as another cell beside the former */
row.getCells().add(innerTable);
outerTable.getRows().add(row);
line("Nested Tables");
System.out.println(outerTable.render());ExampleCode4
Table table = new Table();
table.setBorder(AsciiBorders.BOLD);
Row row = new Row();
table.getRows().add(row);
Cell wrapCell = new Cell("This is a long text that hopefully will not "
+ "fit inside the cell in one line!");
wrapCell.setMaximumWidth(20);
wrapCell.setBorder(AsciiBorders.SOLID);
row.getCells().add(wrapCell);
line("Add cell that breaks long text");
System.out.println(table.render());ExampleCode6
This code creates a table with three rows. First row has a text-only cell in the left, and a binary table as seconds cell, in the right. the second row has three text cells with different border types. Third row has two pre-populated tables, each as a cell. the left side cell is a pre-populated table, created using table(rows,columns) method, the table and each cell received a Solid (default) border. right side cell, is also a pre-populated table, created using a String[][] array.
Table table = new TableBuilder()
.tableBorder(AsciiBorders.BOLD) /* set a BOLD border for table itself */
.cell("OnlyCell") /* add a cell with string content, (by default first row has been added) */
.border() /* set default border for the cell */
.cell((TableBuilder builder) -> builder /* add new cell (beside last one), building a table as cell's content */
.row().cell("00").cell("01") /* create first row, then two cells for it with values 00 and 01 */
.row().cell("10").cell("11") /* create second row, then two cells for it with values 10 and 11 */
.borderAll().tableBorder()) /* set default border for all cells, then set default border for table*/
.row().cell("Bottom-Left").border(AsciiBorders.DOUBLELINE) /* add new row to main table, then add a text cell with DOUBLELINE borders.*/
.cell("Middle").border(AsciiBorders.BOLD) /* add another text cell to the row with BOLD border */
.cell("Bottom-Right").border(AsciiBorders.SOLID) /* add third text cell to the row with SOLID (default) border.*/
.row().cell((TableBuilder builder) -> builder.table(3, 3) /* start a new row (third row) add a cell with a 3 by 3 table as it's content. */
.textAll("*").borderAll().padAll(3, 1).tableBorder()) /* all cells have '*' as content, default border, 3 chars H-padding and 1 char V-Padding. the table gets default border */
.cell((TableBuilder builder) /* add another cell to third row with a table as its content. */
-> builder.table(new String[][]{{"A", "B"}, {"C", "D"},{"E","F"}}) /* this inner table will have three rows, two cell each row corresponding to given 2d array*/
.padAll(3,2).tableBorder(AsciiBorders.BOLD)) /* all 6 cell of inner table will get 3 chars H-padding and 2 chars V-padding. the table itself gets a BOLD border. */
.build(); /* build main table*/
System.out.println(table.render());The resulting table would be like:
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃┌───────────────────────────┐┌──────────────┐┃
┃│OnlyCell ││┌──┐┌──┐ │┃
┃│ │││00││01│ │┃
┃│ ││└──┘└──┘ │┃
┃│ ││┌──┐┌──┐ │┃
┃│ │││10││11│ │┃
┃│ ││└──┘└──┘ │┃
┃└───────────────────────────┘└──────────────┘┃
┃╔═══════════════╗┏━━━━━━━━━┓┌───────────────┐┃
┃║Bottom-Left ║┃Middle ┃│Bottom-Right │┃
┃╚═══════════════╝┗━━━━━━━━━┛└───────────────┘┃
┃┌───────────────────────────┐┏━━━━━━━━━━━━━━┓┃
┃│┌───────┐┌───────┐┌───────┐│┃ ┃┃
┃││ ││ ││ ││┃ ┃┃
┃││ * ││ * ││ * ││┃ A B ┃┃
┃││ ││ ││ ││┃ ┃┃
┃│└───────┘└───────┘└───────┘│┃ ┃┃
┃│┌───────┐┌───────┐┌───────┐│┃ ┃┃
┃││ ││ ││ ││┃ ┃┃
┃││ * ││ * ││ * ││┃ C D ┃┃
┃││ ││ ││ ││┃ ┃┃
┃│└───────┘└───────┘└───────┘│┃ ┃┃
┃│┌───────┐┌───────┐┌───────┐│┃ ┃┃
┃││ ││ ││ ││┃ ┃┃
┃││ * ││ * ││ * ││┃ E F ┃┃
┃││ ││ ││ ││┃ ┃┃
┃│└───────┘└───────┘└───────┘│┃ ┃┃
┃└───────────────────────────┘┗━━━━━━━━━━━━━━┛┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
ExampleCode5
Note that ExampleCode5 is placed in source packages instead of test packages. that's because I preferred to run this test in real console to see the outcome.
InputTextBox textBox = new InputTextBox();
textBox.setWidth(40);
textBox.setLabel("This is going to be a long label, it should be longer than 40 chars," +
" then we can see if the label cell correctly breaks.");
textBox.askInput();
System.out.println("the value from text box: " + textBox.getValue());I Hope this to be useful for you, or maybe saves you some coding-time... Please contact me if you hit any bugs, or you found any mandatory features missing or even typeos. My contact email is [email protected] which is also included in the COC file.
Thanks 👍