Java PathConsumer2D类代码示例

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
/**
 * Constructs a <code>Stroker</code>.
 *
 * @param pc2d an output <code>PathConsumer2D</code>.
 * @param lineWidth the desired line width in pixels
 * @param capStyle the desired end cap style, one of
 * <code>CAP_BUTT</code>, <code>CAP_ROUND</code> or
 * <code>CAP_SQUARE</code>.
 * @param joinStyle the desired line join style, one of
 * <code>JOIN_MITER</code>, <code>JOIN_ROUND</code> or
 * <code>JOIN_BEVEL</code>.
 * @param miterLimit the desired miter limit
 */
public Stroker(PathConsumer2D pc2d,
               float lineWidth,
               int capStyle,
               int joinStyle,
               float miterLimit)
{
    this.out = pc2d;

    this.lineWidth2 = lineWidth / 2;
    this.capStyle = capStyle;
    this.joinStyle = joinStyle;

    float limit = miterLimit * lineWidth2;
    this.miterLimitSq = limit*limit;

    this.prev = CLOSE;
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
public void pop(PathConsumer2D io) {
    numCurves--;
    int type = curveTypes[numCurves];
    end -= (type - 2);
    switch(type) {
    case 8:
        io.curveTo(curves[end+0], curves[end+1],
                   curves[end+2], curves[end+3],
                   curves[end+4], curves[end+5]);
        break;
    case 6:
        io.quadTo(curves[end+0], curves[end+1],
                   curves[end+2], curves[end+3]);
         break;
    case 4:
        io.lineTo(curves[end], curves[end+1]);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
public static PathConsumer2D
    deltaTransformConsumer(PathConsumer2D out,
                           AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float Mxx = (float) at.getScaleX();
    float Mxy = (float) at.getShearX();
    float Myx = (float) at.getShearY();
    float Myy = (float) at.getScaleY();
    if (Mxy == 0f && Myx == 0f) {
        if (Mxx == 1f && Myy == 1f) {
            return out;
        } else {
            return new DeltaScaleFilter(out, Mxx, Myy);
        }
    } else {
        return new DeltaTransformFilter(out, Mxx, Mxy, Myx, Myy);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
public static PathConsumer2D
    inverseDeltaTransformConsumer(PathConsumer2D out,
                                  AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float Mxx = (float) at.getScaleX();
    float Mxy = (float) at.getShearX();
    float Myx = (float) at.getShearY();
    float Myy = (float) at.getScaleY();
    if (Mxy == 0f && Myx == 0f) {
        if (Mxx == 1f && Myy == 1f) {
            return out;
        } else {
            return new DeltaScaleFilter(out, 1.0f/Mxx, 1.0f/Myy);
        }
    } else {
        float det = Mxx * Myy - Mxy * Myx;
        return new DeltaTransformFilter(out,
                                        Myy / det,
                                        -Mxy / det,
                                        -Myx / det,
                                        Mxx / det);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
public void strokeTo(Shape src,
                     AffineTransform at,
                     BasicStroke bs,
                     boolean thin,
                     boolean normalize,
                     boolean antialias,
                     PathConsumer2D consumer)
{
    System.out.println(name+".strokeTo("+
                       src.getClass().getName()+", "+
                       at+", "+
                       bs+", "+
                       (thin ? "thin" : "wide")+", "+
                       (normalize ? "normalized" : "pure")+", "+
                       (antialias ? "AA" : "non-AA")+", "+
                       consumer.getClass().getName()+")");
    target.strokeTo(src, at, bs, thin, normalize, antialias, consumer);
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
/**
 * Constructs a {@code Stroker}.
 *
 * @param pc2d an output {@code PathConsumer2D}.
 * @param lineWidth the desired line width in pixels
 * @param capStyle the desired end cap style, one of
 * {@code CAP_BUTT}, {@code CAP_ROUND} or
 * {@code CAP_SQUARE}.
 * @param joinStyle the desired line join style, one of
 * {@code JOIN_MITER}, {@code JOIN_ROUND} or
 * {@code JOIN_BEVEL}.
 * @param miterLimit the desired miter limit
 */
public Stroker(PathConsumer2D pc2d,
               float lineWidth,
               int capStyle,
               int joinStyle,
               float miterLimit)
{
    this.out = pc2d;

    this.lineWidth2 = lineWidth / 2;
    this.capStyle = capStyle;
    this.joinStyle = joinStyle;

    float limit = miterLimit * lineWidth2;
    this.miterLimitSq = limit*limit;

    this.prev = CLOSE;
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
/**
 * Inits the <code>Stroker</code>.
 *
 * @param pc2d an output <code>PathConsumer2D</code>.
 * @param lineWidth the desired line width in pixels
 * @param capStyle the desired end cap style, one of
 * <code>CAP_BUTT</code>, <code>CAP_ROUND</code> or
 * <code>CAP_SQUARE</code>.
 * @param joinStyle the desired line join style, one of
 * <code>JOIN_MITER</code>, <code>JOIN_ROUND</code> or
 * <code>JOIN_BEVEL</code>.
 * @param miterLimit the desired miter limit
 * @return this instance
 */
Stroker init(PathConsumer2D pc2d,
          float lineWidth,
          int capStyle,
          int joinStyle,
          float miterLimit)
{
    this.out = pc2d;

    this.lineWidth2 = lineWidth / 2.0f;
    this.invHalfLineWidth2Sq = 1.0f / (2.0f * lineWidth2 * lineWidth2);
    this.capStyle = capStyle;
    this.joinStyle = joinStyle;

    float limit = miterLimit * lineWidth2;
    this.miterLimitSq = limit * limit;

    this.prev = CLOSE;

    rdrCtx.stroking = 1;

    return this; // fluent API
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
                                      AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float mxx = (float) at.getScaleX();
    float mxy = (float) at.getShearX();
    float myx = (float) at.getShearY();
    float myy = (float) at.getScaleY();

    if (mxy == 0.0f && myx == 0.0f) {
        if (mxx == 1.0f && myy == 1.0f) {
            return out;
        } else {
            return dt_DeltaScaleFilter.init(out, mxx, myy);
        }
    } else {
        return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
                                             AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float mxx = (float) at.getScaleX();
    float mxy = (float) at.getShearX();
    float myx = (float) at.getShearY();
    float myy = (float) at.getScaleY();

    if (mxy == 0.0f && myx == 0.0f) {
        if (mxx == 1.0f && myy == 1.0f) {
            return out;
        } else {
            return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
        }
    } else {
        float det = mxx * myy - mxy * myx;
        return iv_DeltaTransformFilter.init(out,
                                            myy / det,
                                           -mxy / det,
                                           -myx / det,
                                            mxx / det);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
/**
 * Inits the <code>Stroker</code>.
 *
 * @param pc2d an output <code>PathConsumer2D</code>.
 * @param lineWidth the desired line width in pixels
 * @param capStyle the desired end cap style, one of
 * <code>CAP_BUTT</code>, <code>CAP_ROUND</code> or
 * <code>CAP_SQUARE</code>.
 * @param joinStyle the desired line join style, one of
 * <code>JOIN_MITER</code>, <code>JOIN_ROUND</code> or
 * <code>JOIN_BEVEL</code>.
 * @param miterLimit the desired miter limit
 * @return this instance
 */
Stroker init(PathConsumer2D pc2d,
          float lineWidth,
          int capStyle,
          int joinStyle,
          float miterLimit)
{
    this.out = pc2d;

    this.lineWidth2 = lineWidth / 2f;
    this.invHalfLineWidth2Sq = 1f / (2f * lineWidth2 * lineWidth2);
    this.capStyle = capStyle;
    this.joinStyle = joinStyle;

    float limit = miterLimit * lineWidth2;
    this.miterLimitSq = limit * limit;

    this.prev = CLOSE;

    rdrCtx.stroking = 1;

    return this; // fluent API
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
                                      AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float mxx = (float) at.getScaleX();
    float mxy = (float) at.getShearX();
    float myx = (float) at.getShearY();
    float myy = (float) at.getScaleY();

    if (mxy == 0f && myx == 0f) {
        if (mxx == 1f && myy == 1f) {
            return out;
        } else {
            return dt_DeltaScaleFilter.init(out, mxx, myy);
        }
    } else {
        return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
    }
}
 

import sun.awt.geom.PathConsumer2D; //导入依赖的package包/类
PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
                                             AffineTransform at)
{
    if (at == null) {
        return out;
    }
    float mxx = (float) at.getScaleX();
    float mxy = (float) at.getShearX();
    float myx = (float) at.getShearY();
    float myy = (float) at.getScaleY();

    if (mxy == 0f && myx == 0f) {
        if (mxx == 1f && myy == 1f) {
            return out;
        } else {
            return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
        }
    } else {
        float det = mxx * myy - mxy * myx;
        return iv_DeltaTransformFilter.init(out,
                                            myy / det,
                                           -mxy / det,
                                           -myx / det,
                                            mxx / det);
    }
}