tooltipsupport.java
来自「world wind java sdk 源码」· Java 代码 · 共 253 行
JAVA
253 行
/*Copyright (C) 2001, 2008 United States Government as represented bythe Administrator of the National Aeronautics and Space Administration.All Rights Reserved.*/package gov.nasa.worldwind.applications.gio.catalogui;import java.awt.*;import java.util.ArrayList;/** * @author dcollins * @version $Id: ToolTipSupport.java 5517 2008-07-15 23:36:34Z dcollins $ */public class ToolTipSupport{ private StringBuilder sb; private int lineLength; private String lineSeparator; private static final int DEFAULT_LINE_LENGTH = 80; private static final String LINE_SEPARATOR = "<br>"; public ToolTipSupport() { this.sb = new StringBuilder(); this.lineLength = DEFAULT_LINE_LENGTH; //noinspection RedundantStringConstructorCall this.lineSeparator = new String(LINE_SEPARATOR); } public int getLineLength() { return this.lineLength; } public void setLineLength(int lineLength) { this.lineLength = lineLength; } public String getLineSeparator() { return this.lineSeparator; } public void setLineSeparator(String lineSeparator) { this.lineSeparator = lineSeparator; } public String getText() { String toolTipText = null; if (this.sb.length() > 0) { StringBuilder tmp = new StringBuilder(); tmp.append("<html>"); tmp.append(this.sb); tmp.append("</html>"); toolTipText = tmp.toString(); } return toolTipText; } public boolean hasText() { return this.sb.length() > 0; } public void append(String s) { append(s, false, null, 0, this.sb); } public void append(String s, int style) { append(s, false, null, style, this.sb); } public void append(String[] sv) { if (sv != null) { for (int i = 0; i < sv.length; i++) { if (i != 0) this.sb.append(this.lineSeparator); append(sv[i], false, null, 0, this.sb); } } } public void append(String[] sv, int style) { if (sv != null) { for (int i = 0; i < sv.length; i++) { if (i != 0) this.sb.append(this.lineSeparator); append(sv[i], false, null, style, this.sb); } } } public void appendWrapped(String s) { append(s, true, this.lineSeparator, 0, this.sb); } public void appendWrapped(String s, int style) { append(s, true, this.lineSeparator, style, this.sb); } public void appendLine() { this.sb.append(this.lineSeparator); } public void appendParagraph() { this.sb.append(this.lineSeparator); this.sb.append(this.lineSeparator); } public void append(Iterable<CatalogException> exceptions) { if (exceptions != null) { StringBuilder tmp = null; int i = 0; for (CatalogException e : exceptions) { if (e != null) { if (e.getDescription() != null) { if (tmp == null) tmp = new StringBuilder(); if (i != 0) tmp.append(this.lineSeparator); wrapText(e.getDescription(), this.lineLength, this.lineSeparator, tmp); } i++; } } if (i != 0) { this.sb.append("<font color=\"red\">"); this.sb.append("<b>"); this.sb.append(i); this.sb.append(i == 1 ? " error" : " errors"); this.sb.append("</b>"); if (tmp != null) { this.sb.append(this.lineSeparator); this.sb.append(tmp); } this.sb.append("</font>"); } } } public void clear() { if (this.sb.length() > 0) this.sb.delete(0, this.sb.length()); } private void append(String src, boolean wrap, String lineSeparator, int style, StringBuilder dest) { if (src != null) { if ((style & Font.BOLD) != 0) dest.append("<b>"); if ((style & Font.ITALIC) != 0) dest.append("<i>"); if (wrap && lineSeparator != null) wrapText(src, this.lineLength, lineSeparator, dest); else dest.append(src); if ((style & Font.BOLD) != 0) dest.append("</b>"); if ((style & Font.ITALIC) != 0) dest.append("</i>"); } } private void wrapText(String src, int lineLength, String lineSeparator, StringBuilder dest) { if (src == null) return; if (lineLength <= 0) return; if (src.length() <= lineLength) { dest.append(src); return; } char[] chars = src.toCharArray(); ArrayList<String> lines = new ArrayList<String>(); StringBuilder line = new StringBuilder(); StringBuilder word = new StringBuilder(); //noinspection ForLoopReplaceableByForEach for (int i = 0; i < chars.length; i++) { word.append(chars[i]); if (chars[i] == ' ') { if ((line.length() + word.length()) > lineLength) { lines.add(line.toString()); line.delete(0, line.length()); } line.append(word); word.delete(0, word.length()); } } if (word.length() > 0) { if ((line.length() + word.length()) > lineLength) { lines.add(line.toString()); line.delete(0, line.length()); } line.append(word); } if (line.length() > 0) { lines.add(line.toString()); } for (int i = 0; i < lines.size(); i++) { if (i != 0) dest.append(lineSeparator); dest.append(lines.get(i)); } }}⌨️ 快捷键说明
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