Java Graphics Draw String drawVerticalText(Graphics2D graphics, Font font, Dimension2D dimension, String text)

Description

draws the given text vertically using the specified font.

License

Open Source License

Parameter

Parameter	Description
graphics	graphics context for drawing.
font	font used for drawing the text.
dimension	dimension in which to center the text.
text	standard unicode text (0x0000 - 0xFFFF)to be drawn.

Declaration

public static void drawVerticalText(Graphics2D graphics, Font font, Dimension2D dimension, String text) 

Method Source Code

//package com.java2s;

import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;

import java.awt.geom.Dimension2D;

import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;

public class Main {
    /**/*from   w w w.j  a  va2 s .  com*/
     * draws the given text vertically using the specified font.
     * note: each characters in the text must be in the orignal unicode range of 0x0000 - 0xFFFF.
     * <br/><br/>
     * @param graphics   graphics context for drawing.
     * @param font       font used for drawing the text.
     * @param dimension  dimension in which to center the text.
     * @param text       standard unicode text (0x0000 - 0xFFFF)to be drawn.
     */
    public static void drawVerticalText(Graphics2D graphics, Font font, Dimension2D dimension, String text) {
        List<String> strings = new ArrayList<String>();
        for (Character c : text.toCharArray()) {
            strings.add(c.toString());
        }
        drawVerticalText(graphics, font, dimension, strings);
    }

    /**
     * Draws each strings using the specified font.
     * Each string in the list is centered horizontally, and spaced vertically
     * to fill in the space given by the dimension.
     * <br/><br/>
     * @param graphics
     *    graphics context for drawing.
     * @param font
     *    font used for drawing the strings
     * @param dimension
     *    dimension in which to center the strings
     * @param strings
     *    list of strings to draw in the dimension
     */
    public static void drawVerticalText(Graphics2D graphics, Font font, Dimension2D dimension,
            List<String> strings) {
        // determine the extent of the text.
        FontMetrics metrics = graphics.getFontMetrics(font);
        double textHeight = metrics.getAscent();
        double leading = metrics.getLeading();
        double descent = metrics.getDescent();

        // Vertical offset between each line of text.
        double vOffset = dimension.getHeight() / strings.size();

        // loop through each character
        for (int i = 0; i < strings.size(); ++i) {
            // determine the extent of the text box.
            String text = strings.get(i);
            Rectangle2D bounds2d = metrics.getStringBounds(text, graphics);

            // Get the top and bottom y coordinates that the string is centered in.
            double startY = i * vOffset;
            double stopY = (i + 1) * vOffset;

            // get how much white space is left in the vertical area.
            double verticalSpace = (stopY - startY) - textHeight;

            // center the text in the area.
            double x = (dimension.getWidth() - bounds2d.getWidth()) / 2.0;
            double y = stopY - verticalSpace / 2.0;

            // Draw the text.
            graphics.setFont(font);
            graphics.drawString(text, (float) x, (float) (y - leading - descent / 2.0));
        }
    }
}

Related

1. drawText(Graphics2D graphics, Font font, Dimension2D dimension, String text)
2. drawTextCenter(Graphics2D g2, String str, int x, int y)
3. drawTextInBoundedArea(Graphics2D g2d, int x1, int y1, int x2, int y2, String text)
4. drawTuplet(Graphics g, int x, int y, int x2, int y2, int bi, String s1, String s2)
5. drawUnderlineCharAt(Graphics g, String text, int underlinedIndex, int x, int y)
6. drawVerticalTextCenter(Graphics2D g2, String str, int x, int y)
7. drawWrappedText(Graphics2D g2, float x, float y, float width, String text)
8. paintCenteredString(Graphics2D g, String str, Font font, int centerX, int centerY)
9. paintOutline(Graphics g, String s, int textX, int textY, int thickness)