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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
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package sun.java2d.marlin;
final class DPathSimplifier implements DPathConsumer2D {
// distance threshold in pixels (device)
private static final double PIX_THRESHOLD = MarlinProperties.getPathSimplifierPixelTolerance();
private static final double SQUARE_TOLERANCE = PIX_THRESHOLD * PIX_THRESHOLD;
// members:
private DPathConsumer2D delegate;
private double cx, cy;
DPathSimplifier() {
}
DPathSimplifier init(final DPathConsumer2D delegate) {
this.delegate = delegate;
return this; // fluent API
}
@Override
public void pathDone() {
delegate.pathDone();
}
@Override
public void closePath() {
delegate.closePath();
}
@Override
public long getNativeConsumer() {
return 0;
}
@Override
public void quadTo(final double x1, final double y1,
final double xe, final double ye)
{
// Test if curve is too small:
double dx = (xe - cx);
double dy = (ye - cy);
if ((dx * dx + dy * dy) <= SQUARE_TOLERANCE) {
// check control points P1:
dx = (x1 - cx);
dy = (y1 - cy);
if ((dx * dx + dy * dy) <= SQUARE_TOLERANCE) {
return;
}
}
delegate.quadTo(x1, y1, xe, ye);
// final end point:
cx = xe;
cy = ye;
}
@Override
public void curveTo(final double x1, final double y1,
final double x2, final double y2,
final double xe, final double ye)
{
// Test if curve is too small:
double dx = (xe - cx);
double dy = (ye - cy);
if ((dx * dx + dy * dy) <= SQUARE_TOLERANCE) {
// check control points P1:
dx = (x1 - cx);
dy = (y1 - cy);
if ((dx * dx + dy * dy) <= SQUARE_TOLERANCE) {
// check control points P2:
dx = (x2 - cx);
dy = (y2 - cy);
if ((dx * dx + dy * dy) <= SQUARE_TOLERANCE) {
return;
}
}
}
delegate.curveTo(x1, y1, x2, y2, xe, ye);
// final end point:
cx = xe;
cy = ye;
}
@Override
public void moveTo(final double xe, final double ye) {
delegate.moveTo(xe, ye);
// starting point:
/**代码未完, 请加载全部代码(NowJava.com).**/