Java AffineTransform.concatenate方法代碼示例

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
public FontStrike getStrike(Font font, FontRenderContext frc) {

        AffineTransform at = frc.getTransform();
        double ptSize = font.getSize2D();
        at.scale(ptSize, ptSize);
        if (font.isTransformed()) {
            at.concatenate(font.getTransform());
            if (at.getTranslateX() != 0 || at.getTranslateY() != 0) {
                at.setTransform(at.getScaleX(),
                                at.getShearY(),
                                at.getShearX(),
                                at.getScaleY(),
                                0.0, 0.0);
            }
        }
        int aa = FontStrikeDesc.getAAHintIntVal(this, font, frc);
        int fm = FontStrikeDesc.getFMHintIntVal(frc.getFractionalMetricsHint());
        FontStrikeDesc desc = new FontStrikeDesc(frc.getTransform(),
                                                 at, font.getStyle(),
                                                 aa, fm);
        return getStrike(desc, false);
    }
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
private void drawFrame(GraphicsDecorator g, Shape shape, Color color, Point2D.Float pos) {
    Shape old_clip = g.getClip();
    AffineTransform old = g.getTransform();
    AffineTransform t = g.getTransform();
    t.concatenate(AffineTransform.getTranslateInstance(pos.x, pos.y));
    g.setTransform(t);
    g.setColor(color);
    Stroke old_stroke = g.getStroke();
    g.setStroke(new BasicStroke(10.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
    Area a = new Area(g.getClip());
    a.subtract(new Area(shape));
    g.setClip(a);
    g.draw(shape);
    g.setTransform(old);
    g.setStroke(old_stroke);
    g.setClip(old_clip);
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
/**
 * Adds a shadow effect by executing the following steps: 1. Transform visible
 * pixels to a semi-transparent black 2. Flip the image vertically 3. Scale it
 * down 4. Render original image and shadow on a buffered image
 *
 * @param image
 *          the image
 * @param xOffset
 *          the x offset
 * @param yOffset
 *          the y offset
 * @return the buffered image
 */
public static BufferedImage addShadow(final BufferedImage image, final int xOffset, final int yOffset) {
  if (image == null) {
    return image;
  }

  // Transform visible pixels to a semi-transparent black
  final BufferedImage shadowImage = flashVisiblePixels(image, new Color(0, 0, 0, 30));
  if (shadowImage == null) {
    return image;
  }

  final AffineTransform tx = new AffineTransform();

  // Flip the image vertically
  tx.concatenate(AffineTransform.getScaleInstance(1, -0.15));
  tx.concatenate(AffineTransform.getTranslateInstance(0, -shadowImage.getHeight()));
  final AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
  final BufferedImage rotatedImage = op.filter(shadowImage, null);

  final BufferedImage shadow = getCompatibleImage(image.getWidth(), image.getHeight() + rotatedImage.getHeight());
  final Graphics2D g2D = shadow.createGraphics();
  g2D.drawImage(rotatedImage, xOffset, yOffset, null);
  g2D.drawImage(image, 0, 0, null);

  g2D.dispose();

  return shadow;
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
/**
 * Returns the current Transform in the Graphics2D state.
 * @see #transform
 * @see #setTransform
 */
@Override
public AffineTransform getTransform() {
    if ((constrainX | constrainY) == 0) {
        return new AffineTransform(transform);
    }
    AffineTransform tx
            = AffineTransform.getTranslateInstance(-constrainX, -constrainY);
    tx.concatenate(transform);
    return tx;
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
@Override
protected int platformFontCount(Font font, String str) {

    AffineTransform deviceTransform = getTransform();
    AffineTransform fontTransform = new AffineTransform(deviceTransform);
    fontTransform.concatenate(getFont().getTransform());
    int transformType = fontTransform.getType();

    /* Test if GDI can handle the transform */
    boolean directToGDI = ((transformType !=
                           AffineTransform.TYPE_GENERAL_TRANSFORM)
                           && ((transformType & AffineTransform.TYPE_FLIP)
                               == 0));

    if (!directToGDI) {
        return 0;
    }

    /* Since all windows fonts are available, and the JRE fonts
     * are also registered. Only the Font.createFont() case is presently
     * unknown to GDI. Those can be registered too, although that
     * code does not exist yet, it can be added too, so we should not
     * fail that case. Just do a quick check whether its a TrueTypeFont
     * - ie not a Type1 font etc, and let drawString() resolve the rest.
     */
    Font2D font2D = FontUtilities.getFont2D(font);
    if (font2D instanceof CompositeFont ||
        font2D instanceof TrueTypeFont) {
        return 1;
    } else {
        return 0;
    }
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
private int getNativePointSize() {
    /* Make a copy of the glyphTX in which we will store the
     * font transform, inverting the devTx if necessary
     */
    double[] mat = new double[4];
    desc.glyphTx.getMatrix(mat);
    fontTx = new AffineTransform(mat);

    /* Now work backwards to get the font transform */
    if (!desc.devTx.isIdentity() &&
        desc.devTx.getType() != AffineTransform.TYPE_TRANSLATION) {
        try {
            invertDevTx = desc.devTx.createInverse();
            fontTx.concatenate(invertDevTx);
        } catch (NoninvertibleTransformException e) {
            e.printStackTrace();
        }
    }

    /* At this point the fontTx may be a simple +ve scale, or it
     * may be something more complex.
     */
    Point2D.Float pt = new Point2D.Float(1f,1f);
    fontTx.deltaTransform(pt, pt);
    double ptSize = Math.abs(pt.y);
    int ttype = fontTx.getType();
    if ((ttype & ~AffineTransform.TYPE_UNIFORM_SCALE) != 0 ||
        fontTx.getScaleY() <= 0) {
        /* We need to create an inverse transform that doesn't
         * include the point size (strictly the uniform scale)
         */
        fontTx.scale(1/ptSize, 1/ptSize);
    } else {
        fontTx = null; // no need
    }
    return (int)ptSize;
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
/**
 * Return the union of the visual bounds of all the components.
 * This incorporates the path.  It does not include logical
 * bounds (used by carets).
 */
public Rectangle2D getVisualBounds() {
    Rectangle2D result = null;

    for (int i = 0, n = 0; i < fComponents.length; i++, n += 2) {
        TextLineComponent tlc = fComponents[getComponentLogicalIndex(i)];
        Rectangle2D r = tlc.getVisualBounds();

        Point2D.Float pt = new Point2D.Float(locs[n], locs[n+1]);
        if (lp == null) {
            r.setRect(r.getMinX() + pt.x, r.getMinY() + pt.y,
                      r.getWidth(), r.getHeight());
        } else {
            lp.pathToPoint(pt, false, pt);

            AffineTransform at = tlc.getBaselineTransform();
            if (at != null) {
                AffineTransform tx = AffineTransform.getTranslateInstance
                    (pt.x - at.getTranslateX(), pt.y - at.getTranslateY());
                tx.concatenate(at);
                r = tx.createTransformedShape(r).getBounds2D();
            } else {
                r.setRect(r.getMinX() + pt.x, r.getMinY() + pt.y,
                          r.getWidth(), r.getHeight());
            }
        }

        if (result == null) {
            result = r;
        } else {
            result.add(r);
        }
    }

    if (result == null) {
        result = new Rectangle2D.Float(Float.MAX_VALUE, Float.MAX_VALUE, Float.MIN_VALUE, Float.MIN_VALUE);
    }

    return result;
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
/**
 * Returns the current Transform in the Graphics2D state.
 * @see #transform
 * @see #setTransform
 */
@Override
public AffineTransform getTransform() {
    if ((constrainX | constrainY) == 0 && devScale == 1) {
        return new AffineTransform(transform);
    }
    final double invScale = 1.0 / devScale;
    AffineTransform tx = new AffineTransform(invScale, 0, 0, invScale,
                                             -constrainX * invScale,
                                             -constrainY * invScale);
    tx.concatenate(transform);
    return tx;
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
private void drawArrow(Graphics2D g, int x1, int y1, int x2, int y2) {

        RenderingHints renderHints
                = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
                        RenderingHints.VALUE_ANTIALIAS_ON);
        renderHints.put(RenderingHints.KEY_RENDERING,
                RenderingHints.VALUE_RENDER_QUALITY);

        renderHints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

        g.addRenderingHints(renderHints);

        g.setStroke(new BasicStroke(
                getSetaLargura(),
                BasicStroke.CAP_ROUND,
                BasicStroke.JOIN_ROUND));

        //g.setPaint(Color.BLACK);
        int ARR_SIZE = 3 + getSetaLargura();
        double dx = x2 - x1, dy = y2 - y1;
        double angle = Math.atan2(dy, dx);
        int len = (int) Math.sqrt(dx * dx + dy * dy);
        AffineTransform at = AffineTransform.getTranslateInstance(x1, y1);
        at.concatenate(AffineTransform.getRotateInstance(angle));
        //AffineTransform bkp = g.getTransform();
        g.setTransform(at);

        // Draw horizontal arrow starting in (0, 0)
        g.drawLine(ARR_SIZE, 0, len - ARR_SIZE, 0);

        if (isSetaPontaEsquerda()) {
            g.fillPolygon(new int[]{len, len - ARR_SIZE, len - ARR_SIZE, len},
                    new int[]{0, -ARR_SIZE, ARR_SIZE, 0}, 4);
        }
        if (isSetaPontaDireita()) {
            g.fillPolygon(new int[]{0, ARR_SIZE, ARR_SIZE, 0},
                    new int[]{0, -ARR_SIZE, ARR_SIZE, 0}, 4);
        }
    }
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
public static int getAAHintIntVal(Font2D font2D, Font font,
                                  FontRenderContext frc) {
    Object aa = frc.getAntiAliasingHint();
    if (aa == VALUE_TEXT_ANTIALIAS_OFF ||
        aa == VALUE_TEXT_ANTIALIAS_DEFAULT) {
        return INTVAL_TEXT_ANTIALIAS_OFF;
    } else if (aa == VALUE_TEXT_ANTIALIAS_ON) {
        return INTVAL_TEXT_ANTIALIAS_ON;
    } else if (aa == VALUE_TEXT_ANTIALIAS_GASP) {
        /* FRC.isIdentity() would have been useful */
        int ptSize;
        AffineTransform tx = frc.getTransform();
        if (tx.isIdentity() && !font.isTransformed()) {
            ptSize = font.getSize();
        } else {
            /* one or both transforms is not identity */
            float size = font.getSize2D();
            if (tx.isIdentity()) {
                tx = font.getTransform();
                tx.scale(size, size);
            } else {
                tx.scale(size, size);
                if (font.isTransformed()) {
                    tx.concatenate(font.getTransform());
                }
            }
            double shearx = tx.getShearX();
            double scaley = tx.getScaleY();
            if (shearx != 0) {
                scaley = Math.sqrt(shearx * shearx + scaley * scaley);
            }
            ptSize = (int)(Math.abs(scaley)+0.5);
        }
        if (font2D.useAAForPtSize(ptSize)) {
            return INTVAL_TEXT_ANTIALIAS_ON;
        } else {
            return INTVAL_TEXT_ANTIALIAS_OFF;
        }
    } else if (aa == VALUE_TEXT_ANTIALIAS_LCD_HRGB ||
               aa == VALUE_TEXT_ANTIALIAS_LCD_HBGR) {
        return INTVAL_TEXT_ANTIALIAS_LCD_HRGB;
    } else if (aa == VALUE_TEXT_ANTIALIAS_LCD_VRGB ||
               aa == VALUE_TEXT_ANTIALIAS_LCD_VBGR) {
        return INTVAL_TEXT_ANTIALIAS_LCD_VRGB;
    } else {
        return INTVAL_TEXT_ANTIALIAS_OFF;
    }
}
 

import java.awt.geom.AffineTransform; //導入方法依賴的package包/類
private PDShading buildRadialGradientShading(Paint paint, AffineTransform tf) throws IOException {
	/*
	 * Batik has a copy of RadialGradientPaint, but it has the same structure as the
	 * AWT RadialGradientPaint. So we use Reflection to access the fields of both
	 * these classes.
	 */
	Color[] colors = getPropertyValue(paint, "getColors");
	Color firstColor = colors[0];
	PDColor firstColorMapped = colorMapper.mapColor(contentStream, firstColor);
	applyAsStrokingColor(firstColor);

	PDShadingType3 shading = new PDShadingType3(new COSDictionary());
	shading.setShadingType(PDShading.SHADING_TYPE3);
	shading.setColorSpace(firstColorMapped.getColorSpace());
	float[] fractions = getPropertyValue(paint, "getFractions");
	Point2D centerPoint = getPropertyValue(paint, "getCenterPoint");
	Point2D focusPoint = getPropertyValue(paint, "getFocusPoint");
	AffineTransform gradientTransform = getPropertyValue(paint, "getTransform");
	tf.concatenate(gradientTransform);
	tf.transform(centerPoint, centerPoint);
	tf.transform(focusPoint, focusPoint);

	@SuppressWarnings("ConstantConditions")
	float radius = getPropertyValue(paint, "getRadius");
	radius = (float) Math.abs(radius * tf.getScaleX());

	COSArray coords = new COSArray();

	coords.add(new COSFloat((float) centerPoint.getX()));
	coords.add(new COSFloat((float) centerPoint.getY()));
	coords.add(new COSFloat(0));
	coords.add(new COSFloat((float) focusPoint.getX()));
	coords.add(new COSFloat((float) focusPoint.getY()));
	coords.add(new COSFloat(radius));
	shading.setCoords(coords);

	PDFunctionType3 type3 = buildType3Function(colors, fractions);

	COSArray extend = new COSArray();
	extend.add(COSBoolean.TRUE);
	extend.add(COSBoolean.TRUE);
	shading.setFunction(type3);
	shading.setExtend(extend);
	return shading;
}