*
* The MIT License (MIT)
*
- * Copyright (C) 2016 Kevin Lamonte
+ * 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"),
*/
package jexer;
-import static jexer.TKeypress.kbDown;
-import static jexer.TKeypress.kbEnd;
-import static jexer.TKeypress.kbHome;
-import static jexer.TKeypress.kbLeft;
-import static jexer.TKeypress.kbPgDn;
-import static jexer.TKeypress.kbPgUp;
-import static jexer.TKeypress.kbRight;
-import static jexer.TKeypress.kbUp;
-
import java.util.LinkedList;
import java.util.List;
import jexer.bits.CellAttributes;
import jexer.event.TKeypressEvent;
import jexer.event.TMouseEvent;
+import static jexer.TKeypress.*;
/**
* TText implements a simple scrollable text area. It reflows automatically on
* resize.
*/
-public final class TText extends TWidget {
+public class TText extends TScrollableWidget {
+
+ /**
+ * Available text justifications.
+ */
+ public enum Justification {
+ /**
+ * Left-justified text.
+ */
+ LEFT,
+
+ /**
+ * Centered text.
+ */
+ CENTER,
+
+ /**
+ * Right-justified text.
+ */
+ RIGHT,
+
+ /**
+ * Fully-justified text.
+ */
+ FULL,
+ }
+
+ /**
+ * How to justify the text.
+ */
+ private Justification justification = Justification.LEFT;
/**
* Text to display.
private String colorKey;
/**
- * Vertical scrollbar.
+ * Maximum width of a single line.
*/
- private TVScroller vScroller;
+ private int maxLineWidth;
/**
- * Horizontal scrollbar.
+ * Number of lines between each paragraph.
*/
- private THScroller hScroller;
+ private int lineSpacing = 1;
/**
- * Maximum width of a single line.
+ * Set the text.
+ *
+ * @param text new text to display
*/
- private int maxLineWidth;
+ public void setText(final String text) {
+ this.text = text;
+ reflowData();
+ }
/**
- * Number of lines between each paragraph.
+ * Get the text.
+ *
+ * @return the text
*/
- private int lineSpacing = 1;
+ public String getText() {
+ return text;
+ }
/**
* Convenience method used by TWindowLoggerOutput.
*
- * @param line
- * new line to add
+ * @param line new line to add
*/
public void addLine(final String line) {
if (text.length() == 0) {
text += "\n\n";
text += line;
}
- reflow();
+ reflowData();
}
/**
}
}
+ vScroller.setTopValue(0);
vScroller.setBottomValue((lines.size() - getHeight()) + 1);
if (vScroller.getBottomValue() < 0) {
vScroller.setBottomValue(0);
vScroller.setValue(vScroller.getBottomValue());
}
+ hScroller.setLeftValue(0);
hScroller.setRightValue((maxLineWidth - getWidth()) + 1);
if (hScroller.getRightValue() < 0) {
hScroller.setRightValue(0);
}
/**
- * Insert newlines into a string to wrap it to a maximum column. Terminate
- * the final string with a newline. Note that interior newlines are
- * converted to spaces.
+ * Set justification.
*
- * @param str
- * the string
- * @param n
- * the maximum number of characters in a line
- * @return the wrapped string
+ * @param justification LEFT, CENTER, RIGHT, or FULL
*/
- private String wrap(final String str, final int n) {
- assert (n > 0);
-
- StringBuilder sb = new StringBuilder();
- StringBuilder word = new StringBuilder();
- int col = 0;
- for (int i = 0; i < str.length(); i++) {
- char ch = str.charAt(i);
- if (ch == '\n') {
- ch = ' ';
- }
- if (ch == ' ') {
- sb.append(word.toString());
- sb.append(ch);
- if (word.length() >= (n - 1)) {
- sb.append('\n');
- col = 0;
- }
- word = new StringBuilder();
- } else {
- word.append(ch);
- }
+ public void setJustification(final Justification justification) {
+ this.justification = justification;
+ reflowData();
+ }
- col++;
- if (col >= (n - 1)) {
- sb.append('\n');
- col = 0;
- }
- }
- sb.append(word.toString());
- sb.append('\n');
- return sb.toString();
+ /**
+ * Left-justify the text.
+ */
+ public void leftJustify() {
+ justification = Justification.LEFT;
+ reflowData();
+ }
+
+ /**
+ * Center-justify the text.
+ */
+ public void centerJustify() {
+ justification = Justification.CENTER;
+ reflowData();
+ }
+
+ /**
+ * Right-justify the text.
+ */
+ public void rightJustify() {
+ justification = Justification.RIGHT;
+ reflowData();
+ }
+
+ /**
+ * Fully-justify the text.
+ */
+ public void fullJustify() {
+ justification = Justification.FULL;
+ reflowData();
}
/**
* Resize text and scrollbars for a new width/height.
*/
- public void reflow() {
+ @Override
+ public void reflowData() {
// Reset the lines
lines.clear();
// Break up text into paragraphs
String[] paragraphs = text.split("\n\n");
for (String p : paragraphs) {
- String paragraph = wrap(p, getWidth() - 1);
- for (String line : paragraph.split("\n")) {
- lines.add(line);
+ switch (justification) {
+ case LEFT:
+ lines.addAll(jexer.bits.StringUtils.left(p,
+ getWidth() - 1));
+ break;
+ case CENTER:
+ lines.addAll(jexer.bits.StringUtils.center(p,
+ getWidth() - 1));
+ break;
+ case RIGHT:
+ lines.addAll(jexer.bits.StringUtils.right(p,
+ getWidth() - 1));
+ break;
+ case FULL:
+ lines.addAll(jexer.bits.StringUtils.full(p,
+ getWidth() - 1));
+ break;
}
+
for (int i = 0; i < lineSpacing; i++) {
lines.add("");
}
}
-
- // Start at the top
- if (vScroller == null) {
- vScroller = new TVScroller(this, getWidth() - 1, 0, getHeight() - 1);
- vScroller.setTopValue(0);
- vScroller.setValue(0);
- } else {
- vScroller.setX(getWidth() - 1);
- vScroller.setHeight(getHeight() - 1);
- }
- vScroller.setBigChange(getHeight() - 1);
-
- // Start at the left
- if (hScroller == null) {
- hScroller = new THScroller(this, 0, getHeight() - 1, getWidth() - 1);
- hScroller.setLeftValue(0);
- hScroller.setValue(0);
- } else {
- hScroller.setY(getHeight() - 1);
- hScroller.setWidth(getWidth() - 1);
- }
- hScroller.setBigChange(getWidth() - 1);
-
computeBounds();
}
/**
* Public constructor.
*
- * @param parent
- * parent widget
- * @param text
- * text on the screen
- * @param x
- * column relative to parent
- * @param y
- * row relative to parent
- * @param width
- * width of text area
- * @param height
- * height of text area
+ * @param parent parent widget
+ * @param text text on the screen
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of text area
+ * @param height height of text area
*/
public TText(final TWidget parent, final String text, final int x,
final int y, final int width, final int height) {
/**
* Public constructor.
*
- * @param parent
- * parent widget
- * @param text
- * text on the screen
- * @param x
- * column relative to parent
- * @param y
- * row relative to parent
- * @param width
- * width of text area
- * @param height
- * height of text area
- * @param colorKey
- * ColorTheme key color to use for foreground text. Default is
- * "ttext"
+ * @param parent parent widget
+ * @param text text on the screen
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of text area
+ * @param height height of text area
+ * @param colorKey ColorTheme key color to use for foreground
+ * text. Default is "ttext".
*/
public TText(final TWidget parent, final String text, final int x,
final int y, final int width, final int height,
lines = new LinkedList<String>();
- reflow();
+ vScroller = new TVScroller(this, getWidth() - 1, 0, getHeight() - 1);
+ hScroller = new THScroller(this, 0, getHeight() - 1, getWidth() - 1);
+ reflowData();
}
/**
/**
* Handle mouse press events.
*
- * @param mouse
- * mouse button press event
+ * @param mouse mouse button press event
*/
@Override
public void onMouseDown(final TMouseEvent mouse) {
/**
* Handle keystrokes.
*
- * @param keypress
- * keystroke event
+ * @param keypress keystroke event
*/
@Override
public void onKeypress(final TKeypressEvent keypress) {
git://git.nikiroo.be / fanfix.git / blobdiff