Java RenderingHints.VALUE_TEXT_ANTIALIAS_ON属性代码示例

@Override
public void paintComponent(Graphics g)
{
    Graphics2D g2 = (Graphics2D)g;
    RenderingHints rh = new RenderingHints(
             RenderingHints.KEY_TEXT_ANTIALIASING,
             RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    g2.setRenderingHints(rh);

    g.setColor(BloxsColors.$BACKGROUND);
    g.fillRect(0, 0, getWidth(), getHeight());
    
    for (int i = 0; i < elements.size(); i++) {
        Element get = elements.get(i);
        get.draw((Graphics2D) g);
    }
}
 

public static void main(String[] args) {
    Object aahints[] = {RenderingHints.VALUE_TEXT_ANTIALIAS_OFF,
            RenderingHints.VALUE_TEXT_ANTIALIAS_ON,
            RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB,
            RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB};
    int i, j, k;
    AffineTransform a = new AffineTransform();

    for (i=0; i<aahints.length; i++) {
        for(j=0; j<8; j++) {
            System.out.println("Testing hint "+i+" angle="+j);
            a.setToRotation(j*Math.PI/4);
            testTransformedFont(a, aahints[i]);
        }
        testFontOfSize(0.0f, aahints[i]);
        testFontOfSize(-10.0f, aahints[i]);
    }
}
 

/**
 * Creates a new VDU renderer with a specified font.
 * @param buffer The VDU buffer to render.
 * @param font The font to render with.
 * @param g A Graphics object used to calculate the initial size.
 */
public VDURenderer(VDUBuffer buffer, Font font, Graphics g) {
	setVDUBuffer(buffer);
	// set the normal font to use
	setFont(font, g);
	// set the standard resize strategy
	setResizeStrategy(RESIZE_FONT);

	textAntialiasingType = RenderingHints.VALUE_TEXT_ANTIALIAS_ON;
}
 

/**
 * Sets anti-aliasing to whatever the user's desktop value is.
 *
 * @see #getAntiAliasingEnabled()
 */
private void setDefaultAntiAliasingState() {

	// Most accurate technique, but not available on all OSes.
	aaHints = RSyntaxUtilities.getDesktopAntiAliasHints();
	if (aaHints==null) {

		Map<RenderingHints.Key, Object> temp =
				new HashMap<RenderingHints.Key, Object>();

		// In Java 6+, you can figure out what text AA hint Swing uses for
		// JComponents...
		JLabel label = new JLabel();
		FontMetrics fm = label.getFontMetrics(label.getFont());
		Object hint = null;
		//FontRenderContext frc = fm.getFontRenderContext();
		//hint = fm.getAntiAliasingHint();
		try {
			Method m = FontMetrics.class.getMethod("getFontRenderContext");
			FontRenderContext frc = (FontRenderContext)m.invoke(fm);
			m = FontRenderContext.class.getMethod("getAntiAliasingHint");
			hint = m.invoke(frc);
		} catch (RuntimeException re) {
			throw re; // FindBugs
		} catch (Exception e) {
			// Swallow, either Java 1.5, or running in an applet
		}

		// If not running Java 6+, default to AA enabled on Windows where
		// the software AA is pretty fast, and default (e.g. disabled) on
		// non-Windows.  Note that OS X always uses AA no matter what
		// rendering hints you give it, so this is a moot point there.
		//System.out.println("Rendering hint: " + hint);
		if (hint==null) {
			String os = System.getProperty("os.name").toLowerCase();
			if (os.contains("windows")) {
				hint = RenderingHints.VALUE_TEXT_ANTIALIAS_ON;
			}
			else {
				hint = RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT;
			}
		}
		temp.put(RenderingHints.KEY_TEXT_ANTIALIASING, hint);

		aaHints = temp;

	}

	// We must be connected to a screen resource for our graphics
	// to be non-null.
	if (isDisplayable()) {
		refreshFontMetrics(getGraphics2D(getGraphics()));
	}
	repaint();

}