Examples with TextLayout java.awt.font.TextLayout used on opensource projects

Example 41 with TextLayout

use of java.awt.font.TextLayout in project jdk8u_jdk by JetBrains.

the class PeekGraphics method drawString.

/**
     * Draws the text given by the specified iterator, using this
     * graphics context's current color. The iterator has to specify a font
     * for each character. The baseline of the
     * first character is at position (<i>x</i>,&nbsp;<i>y</i>) in this
     * graphics context's coordinate system.
     * The rendering attributes applied include the clip, transform,
     * paint or color, and composite attributes.
     * For characters in script systems such as Hebrew and Arabic,
     * the glyphs may be draw from right to left, in which case the
     * coordinate supplied is the the location of the leftmost character
     * on the baseline.
     * @param iterator the iterator whose text is to be drawn
     * @param x,y the coordinates where the iterator's text should be drawn.
     * @see #setPaint
     * @see java.awt.Graphics#setColor
     * @see #setTransform
     * @see #setComposite
     * @see #setClip
     */
public void drawString(AttributedCharacterIterator iterator, float x, float y) {
    if (iterator == null) {
        throw new NullPointerException("AttributedCharacterIterator is null");
    }
    TextLayout layout = new TextLayout(iterator, getFontRenderContext());
    layout.draw(this, x, y);
}

Example 42 with TextLayout

use of java.awt.font.TextLayout in project jdk8u_jdk by JetBrains.

the class CompositionArea method getLocationOffset.

TextHitInfo getLocationOffset(int x, int y) {
    TextLayout layout = composedTextLayout;
    if (layout == null) {
        return null;
    } else {
        Point location = getLocationOnScreen();
        x -= location.x + TEXT_ORIGIN_X;
        y -= location.y + TEXT_ORIGIN_Y;
        if (layout.getBounds().contains(x, y)) {
            return layout.hitTestChar(x, y);
        } else {
            return null;
        }
    }
}

Example 43 with TextLayout

use of java.awt.font.TextLayout in project jdk8u_jdk by JetBrains.

the class CompositionArea method getCaretRectangle.

// returns a 0-width rectangle
private Rectangle getCaretRectangle(TextHitInfo caret) {
    int caretLocation = 0;
    TextLayout layout = composedTextLayout;
    if (layout != null) {
        caretLocation = Math.round(layout.getCaretInfo(caret)[0]);
    }
    Graphics g = getGraphics();
    FontMetrics metrics = null;
    try {
        metrics = g.getFontMetrics();
    } finally {
        g.dispose();
    }
    return new Rectangle(TEXT_ORIGIN_X + caretLocation, TEXT_ORIGIN_Y - metrics.getAscent(), 0, metrics.getAscent() + metrics.getDescent());
}

Example 44 with TextLayout

use of java.awt.font.TextLayout in project jdk8u_jdk by JetBrains.

the class CompositionArea method paint.

public void paint(Graphics g) {
    super.paint(g);
    g.setColor(getForeground());
    TextLayout layout = composedTextLayout;
    if (layout != null) {
        layout.draw((Graphics2D) g, TEXT_ORIGIN_X, TEXT_ORIGIN_Y);
    }
    if (caret != null) {
        Rectangle rectangle = getCaretRectangle(caret);
        g.setXORMode(getBackground());
        g.fillRect(rectangle.x, rectangle.y, 1, rectangle.height);
        g.setPaintMode();
    }
}

Example 45 with TextLayout

use of java.awt.font.TextLayout in project jdk8u_jdk by JetBrains.

the class FontDesignMetrics method charsWidth.

public int charsWidth(char[] data, int off, int len) {
    float width = 0;
    if (font.hasLayoutAttributes()) {
        if (len == 0) {
            return 0;
        }
        String str = new String(data, off, len);
        width = new TextLayout(str, font, frc).getAdvance();
    } else {
        /* Explicit test needed to satisfy superclass spec */
        if (len < 0) {
            throw new IndexOutOfBoundsException("len=" + len);
        }
        int limit = off + len;
        for (int i = off; i < limit; i++) {
            char ch = data[i];
            if (ch < 0x100) {
                width += getLatinCharWidth(ch);
            } else if (FontUtilities.isNonSimpleChar(ch)) {
                String str = new String(data, off, len);
                width = new TextLayout(str, font, frc).getAdvance();
                break;
            } else {
                width += handleCharWidth(ch);
            }
        }
    }
    return (int) (0.5 + width);
}