| /* |
| * |
| * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package java2d.demos.Fonts; |
| |
| |
| import static java.awt.Color.BLACK; |
| import static java.awt.Color.CYAN; |
| import static java.awt.Color.LIGHT_GRAY; |
| import static java.awt.Color.WHITE; |
| import java.awt.Color; |
| import java.awt.Font; |
| import java.awt.Graphics2D; |
| import java.awt.Shape; |
| import java.awt.font.FontRenderContext; |
| import java.awt.font.TextHitInfo; |
| import java.awt.font.TextLayout; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Rectangle2D; |
| import java2d.AnimatingSurface; |
| |
| |
| /** |
| * Highlighting of text showing the caret, the highlight & the character |
| * advances. |
| */ |
| @SuppressWarnings("serial") |
| public class Highlighting extends AnimatingSurface { |
| |
| private static String text[] = { "HIGHLIGHTING", "OpenJDK" }; |
| private static Color colors[] = { CYAN, LIGHT_GRAY }; |
| private static Font smallF = new Font("Monospaced", Font.PLAIN, 8); |
| private int[] curPos; |
| private TextLayout[] layouts; |
| private Font[] fonts; |
| |
| public Highlighting() { |
| setBackground(WHITE); |
| fonts = new Font[2]; |
| layouts = new TextLayout[fonts.length]; |
| curPos = new int[fonts.length]; |
| } |
| |
| @Override |
| public void reset(int w, int h) { |
| fonts[0] = new Font("Monospaced", Font.PLAIN, w / text[0].length() + 8); |
| fonts[1] = new Font("Serif", Font.BOLD, w / text[1].length()); |
| for (int i = 0; i < layouts.length; i++) { |
| curPos[i] = 0; |
| } |
| } |
| |
| @Override |
| public void step(int w, int h) { |
| setSleepAmount(900); |
| for (int i = 0; i < 2; i++) { |
| if (layouts[i] == null) { |
| continue; |
| } |
| if (curPos[i]++ == layouts[i].getCharacterCount()) { |
| curPos[i] = 0; |
| } |
| } |
| } |
| |
| @Override |
| public void render(int w, int h, Graphics2D g2) { |
| FontRenderContext frc = g2.getFontRenderContext(); |
| for (int i = 0; i < 2; i++) { |
| layouts[i] = new TextLayout(text[i], fonts[i], frc); |
| float rw = layouts[i].getAdvance(); |
| float rx = ((w - rw) / 2); |
| float ry = ((i == 0) ? h / 3 : h * 0.75f); |
| |
| // draw highlighted shape |
| Shape hilite = layouts[i].getLogicalHighlightShape(0, curPos[i]); |
| AffineTransform at = AffineTransform.getTranslateInstance(rx, ry); |
| hilite = at.createTransformedShape(hilite); |
| float hy = (float) hilite.getBounds2D().getY(); |
| float hh = (float) hilite.getBounds2D().getHeight(); |
| g2.setColor(colors[i]); |
| g2.fill(hilite); |
| |
| // get caret shape |
| Shape[] shapes = layouts[i].getCaretShapes(curPos[i]); |
| Shape caret = at.createTransformedShape(shapes[0]); |
| |
| g2.setColor(BLACK); |
| layouts[i].draw(g2, rx, ry); |
| g2.draw(caret); |
| g2.draw(new Rectangle2D.Float(rx, hy, rw, hh)); |
| |
| // Display character advances. |
| for (int j = 0; j <= layouts[i].getCharacterCount(); j++) { |
| float[] cInfo = layouts[i].getCaretInfo(TextHitInfo.leading(j)); |
| String str = String.valueOf((int) cInfo[0]); |
| TextLayout tl = new TextLayout(str, smallF, frc); |
| tl.draw(g2, rx + cInfo[0] - tl.getAdvance() / 2, hy + hh + tl. |
| getAscent() + 1.0f); |
| } |
| } |
| } |
| |
| public static void main(String argv[]) { |
| createDemoFrame(new Highlighting()); |
| } |
| } |