+++ /dev/null
-/*
- * Jexer - Java Text User Interface
- *
- * The MIT License (MIT)
- *
- * Copyright (C) 2019 Kevin Lamonte
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer;
-
-import java.util.Arrays;
-import java.util.LinkedList;
-import java.util.List;
-
-import jexer.bits.CellAttributes;
-import jexer.event.TKeypressEvent;
-import jexer.event.TMouseEvent;
-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;
-
-/**
- * TText implements a simple scrollable text area. It reflows automatically on
- * resize.
- */
-public class TText extends TScrollableWidget {
-
- // ------------------------------------------------------------------------
- // Constants --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Available text justifications.
- */
- public enum Justification {
-
- /**
- * Not justified at all, use spacing as provided by the client.
- */
- NONE,
-
- /**
- * Left-justified text.
- */
- LEFT,
-
- /**
- * Centered text.
- */
- CENTER,
-
- /**
- * Right-justified text.
- */
- RIGHT,
-
- /**
- * Fully-justified text.
- */
- FULL,
- }
-
- // ------------------------------------------------------------------------
- // Variables --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * How to justify the text.
- */
- private Justification justification = Justification.LEFT;
-
- /**
- * Text to display.
- */
- private String text;
-
- /**
- * Text converted to lines.
- */
- private List<String> lines;
-
- /**
- * Text color.
- */
- private String colorKey;
-
- /**
- * Maximum width of a single line.
- */
- private int maxLineWidth;
-
- /**
- * Number of lines between each paragraph.
- */
- private int lineSpacing = 1;
-
- // ------------------------------------------------------------------------
- // Constructors -----------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * 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
- */
- public TText(final TWidget parent, final String text, final int x,
- final int y, final int width, final int height) {
-
- this(parent, text, x, y, width, height, "ttext");
- }
-
- /**
- * 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".
- */
- public TText(final TWidget parent, final String text, final int x,
- final int y, final int width, final int height,
- final String colorKey) {
-
- // Set parent and window
- super(parent, x, y, width, height);
-
- this.text = text;
- this.colorKey = colorKey;
-
- lines = new LinkedList<String>();
-
- vScroller = new TVScroller(this, getWidth() - 1, 0, getHeight() - 1);
- hScroller = new THScroller(this, 0, getHeight() - 1, getWidth() - 1);
- reflowData();
- }
-
- // ------------------------------------------------------------------------
- // TScrollableWidget ------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Draw the text box.
- */
- @Override
- public void draw() {
- // Setup my color
- CellAttributes color = getTheme().getColor(colorKey);
-
- int begin = vScroller.getValue();
- int topY = 0;
- for (int i = begin; i < lines.size(); i++) {
- String line = lines.get(i);
- if (hScroller.getValue() < line.length()) {
- line = line.substring(hScroller.getValue());
- } else {
- line = "";
- }
- String formatString = "%-" + Integer.toString(getWidth() - 1) + "s";
- putStringXY(0, topY, String.format(formatString, line), color);
- topY++;
-
- if (topY >= (getHeight() - 1)) {
- break;
- }
- }
-
- // Pad the rest with blank lines
- for (int i = topY; i < (getHeight() - 1); i++) {
- hLineXY(0, i, getWidth() - 1, ' ', color);
- }
-
- }
-
- /**
- * Handle mouse press events.
- *
- * @param mouse mouse button press event
- */
- @Override
- public void onMouseDown(final TMouseEvent mouse) {
- if (mouse.isMouseWheelUp()) {
- vScroller.decrement();
- return;
- }
- if (mouse.isMouseWheelDown()) {
- vScroller.increment();
- return;
- }
-
- // Pass to children
- super.onMouseDown(mouse);
- }
-
- /**
- * Handle keystrokes.
- *
- * @param keypress keystroke event
- */
- @Override
- public void onKeypress(final TKeypressEvent keypress) {
- if (keypress.equals(kbLeft)) {
- hScroller.decrement();
- } else if (keypress.equals(kbRight)) {
- hScroller.increment();
- } else if (keypress.equals(kbUp)) {
- vScroller.decrement();
- } else if (keypress.equals(kbDown)) {
- vScroller.increment();
- } else if (keypress.equals(kbPgUp)) {
- vScroller.bigDecrement();
- } else if (keypress.equals(kbPgDn)) {
- vScroller.bigIncrement();
- } else if (keypress.equals(kbHome)) {
- vScroller.toTop();
- } else if (keypress.equals(kbEnd)) {
- vScroller.toBottom();
- } else {
- // Pass other keys (tab etc.) on
- super.onKeypress(keypress);
- }
- }
-
- /**
- * Resize text and scrollbars for a new width/height.
- */
- @Override
- public void reflowData() {
- // Reset the lines
- lines.clear();
-
- // Break up text into paragraphs
- String[] paragraphs = text.split("\n\n");
- for (String p : paragraphs) {
- switch (justification) {
- case NONE:
- lines.addAll(Arrays.asList(p.split("\n")));
- break;
- 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("");
- }
- }
- computeBounds();
- }
-
- // ------------------------------------------------------------------------
- // TText ------------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Set the text.
- *
- * @param text new text to display
- */
- public void setText(final String text) {
- this.text = text;
- reflowData();
- }
-
- /**
- * Get the text.
- *
- * @return the text
- */
- public String getText() {
- return text;
- }
-
- /**
- * Convenience method used by TWindowLoggerOutput.
- *
- * @param line new line to add
- */
- public void addLine(final String line) {
- if (text.length() == 0) {
- text = line;
- } else {
- text += "\n\n";
- text += line;
- }
- reflowData();
- }
-
- /**
- * Recompute the bounds for the scrollbars.
- */
- private void computeBounds() {
- maxLineWidth = 0;
- for (String line : lines) {
- if (line.length() > maxLineWidth) {
- maxLineWidth = line.length();
- }
- }
-
- vScroller.setTopValue(0);
- vScroller.setBottomValue((lines.size() - getHeight()) + 1);
- if (vScroller.getBottomValue() < 0) {
- vScroller.setBottomValue(0);
- }
- if (vScroller.getValue() > vScroller.getBottomValue()) {
- vScroller.setValue(vScroller.getBottomValue());
- }
-
- hScroller.setLeftValue(0);
- hScroller.setRightValue((maxLineWidth - getWidth()) + 1);
- if (hScroller.getRightValue() < 0) {
- hScroller.setRightValue(0);
- }
- if (hScroller.getValue() > hScroller.getRightValue()) {
- hScroller.setValue(hScroller.getRightValue());
- }
- }
-
- /**
- * Set justification.
- *
- * @param justification LEFT, CENTER, RIGHT, or FULL
- */
- public void setJustification(final Justification justification) {
- this.justification = justification;
- reflowData();
- }
-
- /**
- * 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();
- }
-
-}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff