draw Trimmed String - Java 2D Graphics

Java examples for 2D Graphics:Text

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Description

draw Trimmed String

Demo Code

/**//  www  . jav a  2s.  c  om
 * Copyright 2013 Theodor Costache
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License. 
 */
//package com.java2s;
import java.awt.FontMetrics;
import java.awt.Graphics;

public class Main {
    /**
     * 
     * @param g
     * @param s
     * @param x
     * @param y
     * @param width
     */
    public static void drawTrimmedString(Graphics g, String s, int x,
            int y, int width) {
        // FontMetrics gives us information about the width,
        // height, etc. of the current Graphics object's Font.

        if (s == null)
            s = "" + s;

        FontMetrics fm = g.getFontMetrics();

        int wordWidth = fm.stringWidth(s + " ");

        int charIdx = s.length();
        boolean textTrimmed = false;
        while (charIdx > 0 && wordWidth >= width) {
            charIdx -= 1;
            s = s.substring(0, charIdx);
            wordWidth = fm.stringWidth(s + " ");
            textTrimmed = true;
        }
        s = s.length() > 3 && textTrimmed ? s.substring(0, s.length() - 3)
                + "..." : s.length() > 2 ? s : "";

        g.drawString(s, x, y);

    }

    /**
     * 
     * @param g
     * @param s
     * @param x
     * @param y
     * @param width
     */
    public static void drawString(Graphics g, String s, int x, int y,
            int width, int height) {
        // FontMetrics gives us information about the width,
        // height, etc. of the current Graphics object's Font.
        FontMetrics fm = g.getFontMetrics();

        int lineHeight = fm.getHeight();
        int textHeight = 0;
        int curX = x;
        int curY = y;

        String[] words = s.split(" ");

        for (String word : words) {
            // Find out thw width of the word.
            int wordWidth = fm.stringWidth(word + " ");

            // If text exceeds the width, then move to next line.
            if (curX + wordWidth >= x + width) {
                curY += lineHeight;
                textHeight += lineHeight;
                curX = x;
            }
            int charIdx = word.length();
            boolean textTrimmed = false;
            while (charIdx > 0 && wordWidth >= width) {
                charIdx -= 1;
                word = word.substring(0, charIdx);
                wordWidth = fm.stringWidth(word + " ");
                textTrimmed = true;
            }
            word = word.length() > 3 && textTrimmed ? word.substring(0,
                    word.length() - 3) + "..." : word.length() > 2 ? word
                    : "";

            if (textHeight + lineHeight > height) {
                g.drawString("...", curX, curY);
                break;
            }
            g.drawString(word, curX, curY);

            // Move over to the right for next word.
            curX += wordWidth;
        }
    }
}

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