Java Code Examples for java.awt.FontMetrics#getWidths()

The following examples show how to use java.awt.FontMetrics#getWidths() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may want to check out the right sidebar which shows the related API usage.
Example 1
Source Project: settlers-remake   File: LWJGLTextDrawer.java    License: MIT License 6 votes vote down vote up
/**
 * Creates a new text drawer.
 *
 */
public LWJGLTextDrawer(LWJGL15DrawContext drawContext) {
	this.drawContext = drawContext;
	font = new Font(FONTNAME, Font.PLAIN, TEXTURE_GENERATION_SIZE);

	BufferedImage tmp_bi = new BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR);
	Graphics tmp_graph = tmp_bi.getGraphics();
	tmp_graph.setFont(font);
	FontMetrics fm = tmp_graph.getFontMetrics();
	char_widths = fm.getWidths();
	gentex_line_height = fm.getHeight();
	tmp_graph.dispose();

	if(char_widths.length != 256) {
		throw new IndexOutOfBoundsException("we only support 256 characters (256!="+char_widths.length);
	}

	generateTexture();
	generateGeometry(fm.getDescent());
}
 
Example 2
Source Project: netbeans   File: FontPanel.java    License: Apache License 2.0 5 votes vote down vote up
/**
    * Return true if this font is fixed width.
    * Only the first 256 characters are considered.
    * @param font
    * @return true if this font is fixed width.
    */
   private static boolean isFixedWidth(Component context, Font font) {
FontMetrics metrics = context.getFontMetrics(font);
int[] widths = metrics.getWidths();
int Swidth = widths[0];
for (int cx = 1; cx < widths.length; cx++) {
    int width = widths[cx];
    if (width == 0) {
	continue;
    } else if (Swidth != width) {
	return false;
    }
}
return true;
   }
 
Example 3
Source Project: TrakEM2   File: Utils.java    License: GNU General Public License v3.0 5 votes vote down vote up
/** Get the width and height of single-line text. */
static public final Dimension getDimensions(final String text, final Font font) {
	if (null == frame) { frame = new java.awt.Frame(); frame.pack(); frame.setBackground(Color.white); } // emulating the ImageProcessor class
	final FontMetrics fm = frame.getFontMetrics(font);
	final int[] w = fm.getWidths(); // the advance widths of the first 256 chars
	int width = 0;
	for (int i = text.length() -1; i>-1; i--) {
		final int c = (int)text.charAt(i);
		if (c < 256) width += w[c];
	}
	return new Dimension(width, fm.getHeight());
}
 
Example 4
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}
 
Example 5
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}
 
Example 6
public static void main(String[] args) throws Exception {
    GraphicsEnvironment e =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = e.getAllFonts();
    BufferedImage bi = new BufferedImage(500, 500,
            BufferedImage.TYPE_INT_RGB);
    for (AntialiasHint antialiasHint : antialiasHints) {
        for (Font f : fonts) {
            for (StyleAndSize styleAndSize : stylesAndSizes) {
                f = f.deriveFont(styleAndSize.style, styleAndSize.size);
                Graphics2D g2d = bi.createGraphics();
                g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                        antialiasHint.getHint());
                FontMetrics fm = g2d.getFontMetrics(f);
                int[] width;
                int maxWidth = -1;
                int maxAdvance = fm.getMaxAdvance();
                if (debug) {
                    System.out.println("Testing " + f + " in " +
                            antialiasHint);
                    System.out.println("getMaxAdvance: " + maxAdvance);
                }
                if (maxAdvance != -1) {
                    String failureMessage = null;
                    width = fm.getWidths();
                    for (int j = 0; j < width.length; j++) {
                        if (width[j] > maxWidth) {
                            maxWidth = width[j];
                        }
                        if (width[j] > maxAdvance) {
                            failureMessage = "FAILED: getMaxAdvance is " +
                                             "not max for font: " +
                                             f.toString() +
                                             " getMaxAdvance(): " +
                                             maxAdvance +
                                             " getWidths()[" + j + "]: " +
                                             width[j];
                            throw new Exception(failureMessage);
                        }
                    }
                }
                if (debug) {
                    System.out.println("Max char width: " + maxWidth);
                    System.out.println("PASSED");
                    System.out.println(".........................");
                }
            }
        }
    }
    System.out.println("TEST PASS - OK");
}