diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/graph/geom/plane/Path2D.java')
-rw-r--r-- | src/jogl/classes/com/jogamp/graph/geom/plane/Path2D.java | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/src/jogl/classes/com/jogamp/graph/geom/plane/Path2D.java b/src/jogl/classes/com/jogamp/graph/geom/plane/Path2D.java deleted file mode 100644 index 8dbc5fd21..000000000 --- a/src/jogl/classes/com/jogamp/graph/geom/plane/Path2D.java +++ /dev/null @@ -1,454 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/** - * @author Denis M. Kishenko - * @author Sven Gothel - */ -package com.jogamp.graph.geom.plane; - -import java.util.NoSuchElementException; - -import com.jogamp.graph.geom.SVertex; -import com.jogamp.graph.geom.Vertex; -import com.jogamp.opengl.math.geom.AABBox; - - -public final class Path2D implements Cloneable { - - public static final int WIND_EVEN_ODD = PathIterator.WIND_EVEN_ODD; - public static final int WIND_NON_ZERO = PathIterator.WIND_NON_ZERO; - - static final String invalidWindingRuleValue = "Invalid winding rule value"; - static final String iteratorOutOfBounds = "Iterator out of bounds"; - - /** - * The buffers size - */ - private static final int BUFFER_SIZE = 10; - - /** - * The buffers capacity - */ - private static final int BUFFER_CAPACITY = 10; - - /** - * The point's types buffer - */ - byte[] m_types; - - /** - * The points buffer - */ - float[] m_points; - - /** - * The point's type buffer size - */ - int m_typeSize; - - /** - * The points buffer size - */ - int m_pointSize; - - /** - * The path rule - */ - int m_rule; - - /** - * The space amount in points buffer for different segmenet's types - */ - static int pointShift[] = { - 2, // MOVETO - 2, // LINETO - 4, // QUADTO - 6, // CUBICTO - 0}; // CLOSE - - /* - * GeneralPath path iterator - */ - static class Iterator implements PathIterator { - - /** - * The current cursor position in types buffer - */ - int typeIndex; - - /** - * The current cursor position in points buffer - */ - int pointIndex; - - /** - * The source GeneralPath object - */ - Path2D p; - - /** - * The path iterator transformation - */ - AffineTransform t; - - /** - * Constructs a new GeneralPath.Iterator for given general path - * @param path - the source GeneralPath object - */ - Iterator(final Path2D path) { - this(path, null); - } - - /** - * Constructs a new GeneralPath.Iterator for given general path and transformation - * @param path - the source GeneralPath object - * @param at - the AffineTransform object to apply rectangle path - */ - Iterator(final Path2D path, final AffineTransform at) { - this.p = path; - this.t = at; - } - - @Override - public int getWindingRule() { - return p.getWindingRule(); - } - - @Override - public int index() { return typeIndex; } - - @Override - public float[] points() { return p.m_points; } - - @Override - public int getType(final int idx) { return p.m_types[idx]; } - - @Override - public boolean isDone() { - return typeIndex >= p.m_typeSize; - } - - @Override - public void next() { - typeIndex++; - } - - @Override - public int currentSegment(final float[] coords) { - if (isDone()) { - throw new NoSuchElementException(iteratorOutOfBounds); - } - final int type = p.m_types[typeIndex]; - final int count = Path2D.pointShift[type]; - System.arraycopy(p.m_points, pointIndex, coords, 0, count); - if (t != null) { - t.transform(coords, 0, coords, 0, count / 2); - } - pointIndex += count; - return type; - } - - } - - public static int getPointCount(final int type) { return pointShift[type]; } - - public Path2D() { - this(WIND_NON_ZERO, BUFFER_SIZE); - } - - public Path2D(final int rule) { - this(rule, BUFFER_SIZE); - } - - public Path2D(final int rule, final int initialCapacity) { - setWindingRule(rule); - m_types = new byte[initialCapacity]; - m_points = new float[initialCapacity * 2]; - } - - public Path2D(final Path2D path) { - this(WIND_NON_ZERO, BUFFER_SIZE); - final PathIterator p = path.iterator(null); - setWindingRule(p.getWindingRule()); - append(p, false); - } - - public void setWindingRule(final int rule) { - if (rule != WIND_EVEN_ODD && rule != WIND_NON_ZERO) { - throw new NoSuchElementException(invalidWindingRuleValue); - } - this.m_rule = rule; - } - - public int getWindingRule() { - return m_rule; - } - - /** - * Checks points and types buffer size to add pointCount points. If necessary realloc buffers to enlarge size. - * @param pointCount - the point count to be added in buffer - */ - void checkBuf(final int pointCount, final boolean checkMove) { - if (checkMove && m_typeSize == 0) { - throw new IllegalPathStateException("First segment should be SEG_MOVETO type"); - } - if (m_typeSize == m_types.length) { - final byte tmp[] = new byte[m_typeSize + BUFFER_CAPACITY]; - System.arraycopy(m_types, 0, tmp, 0, m_typeSize); - m_types = tmp; - } - if (m_pointSize + pointCount > m_points.length) { - final float tmp[] = new float[m_pointSize + Math.max(BUFFER_CAPACITY * 2, pointCount)]; - System.arraycopy(m_points, 0, tmp, 0, m_pointSize); - m_points = tmp; - } - } - - public void moveTo(final float x, final float y) { - if (m_typeSize > 0 && m_types[m_typeSize - 1] == PathIterator.SEG_MOVETO) { - m_points[m_pointSize - 2] = x; - m_points[m_pointSize - 1] = y; - } else { - checkBuf(2, false); - m_types[m_typeSize++] = PathIterator.SEG_MOVETO; - m_points[m_pointSize++] = x; - m_points[m_pointSize++] = y; - } - } - - public void lineTo(final float x, final float y) { - checkBuf(2, true); - m_types[m_typeSize++] = PathIterator.SEG_LINETO; - m_points[m_pointSize++] = x; - m_points[m_pointSize++] = y; - } - - public void quadTo(final float x1, final float y1, final float x2, final float y2) { - checkBuf(4, true); - m_types[m_typeSize++] = PathIterator.SEG_QUADTO; - m_points[m_pointSize++] = x1; - m_points[m_pointSize++] = y1; - m_points[m_pointSize++] = x2; - m_points[m_pointSize++] = y2; - } - - public void curveTo(final float x1, final float y1, final float x2, final float y2, final float x3, final float y3) { - checkBuf(6, true); - m_types[m_typeSize++] = PathIterator.SEG_CUBICTO; - m_points[m_pointSize++] = x1; - m_points[m_pointSize++] = y1; - m_points[m_pointSize++] = x2; - m_points[m_pointSize++] = y2; - m_points[m_pointSize++] = x3; - m_points[m_pointSize++] = y3; - } - - final public int size() { - return m_typeSize; - } - - final public boolean isClosed() { - return m_typeSize > 0 && m_types[m_typeSize - 1] == PathIterator.SEG_CLOSE ; - } - - public void closePath() { - if (!isClosed()) { - checkBuf(0, true); - m_types[m_typeSize++] = PathIterator.SEG_CLOSE; - } - } - - @Override - public String toString() { - return "[size "+size()+", closed "+isClosed()+"]"; - } - - public void append(final Path2D path, final boolean connect) { - final PathIterator p = path.iterator(null); - append(p, connect); - } - - /** - * Append the given path geometry to this instance - * @param path the {@link PathIterator} to append to this {@link Path2D} - * @param connect pass true to turn an initial moveTo segment into a lineTo segment to connect the new geometry to the existing path, otherwise pass false. - */ - public void append(final PathIterator path, boolean connect) { - final float[] points = path.points(); - while ( !path.isDone() ) { - final int index = path.index(); - final int type = path.getType(index); - switch ( type ) { - case PathIterator.SEG_MOVETO: - if ( !connect || 0 == m_typeSize ) { - moveTo(points[index+0], points[index+1]); - break; - } - if ( m_types[m_typeSize - 1] != PathIterator.SEG_CLOSE && - m_points[m_pointSize - 2] == points[index+0] && - m_points[m_pointSize - 1] == points[index+1] - ) - { - break; - } - // fallthrough: MOVETO -> LINETO - case PathIterator.SEG_LINETO: - lineTo(points[index+0], points[index+1]); - break; - case PathIterator.SEG_QUADTO: - quadTo(points[index+0], points[index+1], points[index+2], points[index+3]); - break; - case PathIterator.SEG_CUBICTO: - curveTo(points[index+0], points[index+1], points[index+2], points[index+3], points[index+4], points[index+5]); - break; - case PathIterator.SEG_CLOSE: - closePath(); - break; - default: - throw new IllegalArgumentException("Unhandled Segment Type: "+type); - } - path.next(); - connect = false; - } - } - - public SVertex getCurrentPoint() { - if (m_typeSize == 0) { - return null; - } - int j = m_pointSize - 2; - if (m_types[m_typeSize - 1] == PathIterator.SEG_CLOSE) { - - for (int i = m_typeSize - 2; i > 0; i--) { - final int type = m_types[i]; - if (type == PathIterator.SEG_MOVETO) { - break; - } - j -= pointShift[type]; - } - } - return new SVertex(m_points[j], m_points[j + 1], 0f, true); - } - - public void reset() { - m_typeSize = 0; - m_pointSize = 0; - } - - public void transform(final AffineTransform t) { - t.transform(m_points, 0, m_points, 0, m_pointSize / 2); - } - - public Path2D createTransformedShape(final AffineTransform t) { - final Path2D p = (Path2D)clone(); - if (t != null) { - p.transform(t); - } - return p; - } - - public final synchronized AABBox getBounds2D() { - float rx1, ry1, rx2, ry2; - if (m_pointSize == 0) { - rx1 = ry1 = rx2 = ry2 = 0.0f; - } else { - int i = m_pointSize - 1; - ry1 = ry2 = m_points[i--]; - rx1 = rx2 = m_points[i--]; - while (i > 0) { - final float y = m_points[i--]; - final float x = m_points[i--]; - if (x < rx1) { - rx1 = x; - } else - if (x > rx2) { - rx2 = x; - } - if (y < ry1) { - ry1 = y; - } else - if (y > ry2) { - ry2 = y; - } - } - } - return new AABBox(rx1, ry1, 0f, rx2, ry2, 0f); - } - - /** - * Checks cross count according to path rule to define is it point inside shape or not. - * @param cross - the point cross count - * @return true if point is inside path, or false otherwise - */ - boolean isInside(final int cross) { - if (m_rule == WIND_NON_ZERO) { - return Crossing.isInsideNonZero(cross); - } - return Crossing.isInsideEvenOdd(cross); - } - - public boolean contains(final float px, final float py) { - return isInside(Crossing.crossShape(this, px, py)); - } - - public boolean contains(final float rx, final float ry, final float rw, final float rh) { - final int cross = Crossing.intersectShape(this, rx, ry, rw, rh); - return cross != Crossing.CROSSING && isInside(cross); - } - - public boolean intersects(final float rx, final float ry, final float rw, final float rh) { - final int cross = Crossing.intersectShape(this, rx, ry, rw, rh); - return cross == Crossing.CROSSING || isInside(cross); - } - - public boolean contains(final Vertex p) { - return contains(p.getX(), p.getY()); - } - - public boolean contains(final AABBox r) { - return contains(r.getMinX(), r.getMinY(), r.getWidth(), r.getHeight()); - } - - public boolean intersects(final AABBox r) { - return intersects(r.getMinX(), r.getMinY(), r.getWidth(), r.getHeight()); - } - - public PathIterator iterator() { - return new Iterator(this); - } - - public PathIterator iterator(final AffineTransform t) { - return new Iterator(this, t); - } - - /* public PathIterator getPathIterator(AffineTransform t, float flatness) { - return new FlatteningPathIterator(getPathIterator(t), flatness); - } */ - - @Override - public Object clone() { - try { - final Path2D p = (Path2D) super.clone(); - p.m_types = m_types.clone(); - p.m_points = m_points.clone(); - return p; - } catch (final CloneNotSupportedException e) { - throw new InternalError(); - } - } -} - |