| /* |
| * |
| * 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. |
| * |
| */ |
| |
| package org.apache.royale.swf.types; |
| |
| import org.apache.royale.swf.io.SWFWriter; |
| |
| /** |
| * The curved-edge record stores the edge as two X-Y deltas. The three points |
| * that define the Quadratic Bezier are calculated like this: |
| * <ol> |
| * <li>The first anchor point is the current drawing position.</li> |
| * <li>The control point is the current drawing position + ControlDelta.</li> |
| * <li>The last anchor point is the current drawing position + ControlDelta + |
| * AnchorDelta.</li> |
| * </ol> |
| * The last anchor point becomes the current drawing position. |
| */ |
| public class CurvedEdgeRecord extends EdgeRecord |
| { |
| public CurvedEdgeRecord() |
| { |
| super(ShapeRecordType.CURVED_EDGE); |
| } |
| |
| private int controlDeltaX; |
| private int controlDeltaY; |
| private int anchorDeltaX; |
| private int anchorDeltaY; |
| |
| public int getControlDeltaX() |
| { |
| return controlDeltaX; |
| } |
| |
| public void setControlDeltaX(int controlDeltaX) |
| { |
| this.controlDeltaX = controlDeltaX; |
| } |
| |
| public int getControlDeltaY() |
| { |
| return controlDeltaY; |
| } |
| |
| public void setControlDeltaY(int controlDeltaY) |
| { |
| this.controlDeltaY = controlDeltaY; |
| } |
| |
| public int getAnchorDeltaX() |
| { |
| return anchorDeltaX; |
| } |
| |
| public void setAnchorDeltaX(int anchorDeltaX) |
| { |
| this.anchorDeltaX = anchorDeltaX; |
| } |
| |
| public int getAnchorDeltaY() |
| { |
| return anchorDeltaY; |
| } |
| |
| public void setAnchorDeltaY(int anchorDeltaY) |
| { |
| this.anchorDeltaY = anchorDeltaY; |
| } |
| |
| /** |
| * Get number of bits required to store anchor delta x/y and control delta |
| * x/y. The result value is 2 less than the actual number. |
| * |
| * @return number of bits per value |
| */ |
| public int getNumBits() |
| { |
| int nBits = SWFWriter.requireSBCount(SWFWriter.maxNum(controlDeltaX, controlDeltaY, anchorDeltaX, anchorDeltaY)); |
| return (nBits < 2) ? 0 : nBits - 2; |
| } |
| } |