Example usage for java.awt.font GlyphVector getGlyphMetrics

Introduction

In this page you can find the example usage for java.awt.font GlyphVector getGlyphMetrics.

Prototype

public abstract GlyphMetrics getGlyphMetrics(int glyphIndex);

Source Link

Document

Returns the metrics of the glyph at the specified index into this GlyphVector .

Usage

From source file:Hexagon.java

public static BufferedImage drawCodePoint(char codePoint, int width, int height, Font font, Color color) {
    BufferedImage img = createImage(width, height);
    Graphics2D g2 = img.createGraphics();
    String text = "" + codePoint;
    g2.setColor(color);//from  ww w . ja  va2  s.  c o m
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    GlyphVector gv = font.createGlyphVector(g2.getFontRenderContext(), text);
    g2.drawGlyphVector(gv, 0f, (float) gv.getGlyphMetrics(0).getBounds2D().getHeight());
    return img;
}

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From source file:com.jhlabs.awt.TextStroke.java

public Shape createStrokedShape(Shape shape) {
    FontRenderContext frc = new FontRenderContext(null, true, true);
    GlyphVector glyphVector = font.createGlyphVector(frc, text);

    GeneralPath result = new GeneralPath();
    PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
    float points[] = new float[6];
    float moveX = 0, moveY = 0;
    float lastX = 0, lastY = 0;
    float thisX = 0, thisY = 0;
    int type = 0;
    float next = 0;
    int currentChar = 0;
    int length = glyphVector.getNumGlyphs();

    if (length == 0)
        return result;

    float factor = stretchToFit ? measurePathLength(shape) / (float) glyphVector.getLogicalBounds().getWidth()
            : 1.0f;/*www.  j a  v a  2  s .  c  o  m*/
    float height = (float) glyphVector.getLogicalBounds().getHeight();
    float nextAdvance = 0;

    while (currentChar < length && !it.isDone()) {
        type = it.currentSegment(points);
        switch (type) {
        case PathIterator.SEG_MOVETO:
            moveX = lastX = points[0];
            moveY = lastY = points[1];
            result.moveTo(moveX, moveY);
            nextAdvance = glyphVector.getGlyphMetrics(currentChar).getAdvance() * 0.5f;
            next = nextAdvance;
            break;

        case PathIterator.SEG_CLOSE:
            points[0] = moveX;
            points[1] = moveY;
            // Fall into....

        case PathIterator.SEG_LINETO:
            thisX = points[0];
            thisY = points[1];
            float dx = thisX - lastX;
            float dy = thisY - lastY;
            float distance = (float) FastMath.sqrt(dx * dx + dy * dy);
            if (distance >= next) {
                float r = 1.0f / distance;
                float angle = (float) FastMath.atan2(dy, dx);
                while (currentChar < length && distance >= next) {
                    Shape glyph = glyphVector.getGlyphOutline(currentChar);
                    Point2D p = glyphVector.getGlyphPosition(currentChar);
                    float px = (float) p.getX();
                    float py = (float) p.getY();
                    float x = lastX + next * dx * r;
                    float y = lastY + next * dy * r;
                    float advance = nextAdvance;
                    nextAdvance = currentChar < length - 1
                            ? glyphVector.getGlyphMetrics(currentChar + 1).getAdvance() * 0.5f
                            : 0;
                    t.setToTranslation(x, y);
                    t.rotate(angle);
                    t.translate(-px - advance, -py + height * factor / 2.0f);
                    result.append(t.createTransformedShape(glyph), false);
                    next += (advance + nextAdvance) * factor;
                    currentChar++;
                    if (repeat)
                        currentChar %= length;
                }
            }
            next -= distance;
            lastX = thisX;
            lastY = thisY;
            break;
        }
        it.next();
    }

    return result;
}

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