| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed 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 android.graphics.drawable.shapes; |
| |
| import android.graphics.Canvas; |
| import android.graphics.Outline; |
| import android.graphics.Paint; |
| |
| import java.util.Objects; |
| |
| /** |
| * Creates an arc shape. The arc shape starts at a specified angle and sweeps |
| * clockwise, drawing slices of pie. |
| * <p> |
| * The arc can be drawn to a {@link Canvas} with its own |
| * {@link #draw(Canvas, Paint)} method, but more graphical control is available |
| * if you instead pass the ArcShape to a |
| * {@link android.graphics.drawable.ShapeDrawable}. |
| */ |
| public class ArcShape extends RectShape { |
| private final float mStartAngle; |
| private final float mSweepAngle; |
| |
| /** |
| * ArcShape constructor. |
| * |
| * @param startAngle the angle (in degrees) where the arc begins |
| * @param sweepAngle the sweep angle (in degrees). Anything equal to or |
| * greater than 360 results in a complete circle/oval. |
| */ |
| public ArcShape(float startAngle, float sweepAngle) { |
| mStartAngle = startAngle; |
| mSweepAngle = sweepAngle; |
| } |
| |
| /** |
| * @return the angle (in degrees) where the arc begins |
| */ |
| public final float getStartAngle() { |
| return mStartAngle; |
| } |
| |
| /** |
| * @return the sweep angle (in degrees) |
| */ |
| public final float getSweepAngle() { |
| return mSweepAngle; |
| } |
| |
| @Override |
| public void draw(Canvas canvas, Paint paint) { |
| canvas.drawArc(rect(), mStartAngle, mSweepAngle, true, paint); |
| } |
| |
| @Override |
| public void getOutline(Outline outline) { |
| // Since we don't support concave outlines, arc shape does not attempt |
| // to provide an outline. |
| } |
| |
| @Override |
| public ArcShape clone() throws CloneNotSupportedException { |
| return (ArcShape) super.clone(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| if (!super.equals(o)) { |
| return false; |
| } |
| ArcShape arcShape = (ArcShape) o; |
| return Float.compare(arcShape.mStartAngle, mStartAngle) == 0 |
| && Float.compare(arcShape.mSweepAngle, mSweepAngle) == 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(super.hashCode(), mStartAngle, mSweepAngle); |
| } |
| } |
| |