/*
* Copyright (c) Gustavo Claramunt (AnderWeb) 2014.
*
* 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 org.adw.library.widgets.discreteseekbar.internal.drawable;
import android.content.res.ColorStateList;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Animatable;
import android.os.SystemClock;
import android.support.annotation.NonNull;
/**
* <h1>HACK</h1>
* <p>
* Special {@link org.adw.library.widgets.discreteseekbar.internal.drawable.StateDrawable} implementation
* to draw the Thumb circle.
* </p>
* <p>
* It's special because it will stop drawing once the state is pressed/focused BUT only after a small delay.
* </p>
* <p>
* This special delay is meant to help avoiding frame glitches while the {@link org.adw.library.widgets.discreteseekbar.internal.Marker} is added to the Window
* </p>
*
* @hide
*/
public class ThumbDrawable extends StateDrawable implements Animatable {
//The current size for this drawable. Must be converted to real DPs
public static final int DEFAULT_SIZE_DP = 12;
private final int mSize;
private boolean mOpen;
private boolean mRunning;
public ThumbDrawable(@NonNull ColorStateList tintStateList, int size) {
super(tintStateList);
mSize = size;
}
@Override
public int getIntrinsicWidth() {
return mSize;
}
@Override
public int getIntrinsicHeight() {
return mSize;
}
@Override
public void doDraw(Canvas canvas, Paint paint) {
if (!mOpen) {
Rect bounds = getBounds();
float radius = (mSize / 2);
canvas.drawCircle(bounds.centerX(), bounds.centerY(), radius, paint);
}
}
public void animateToPressed() {
scheduleSelf(opener, SystemClock.uptimeMillis() + 100);
mRunning = true;
}
public void animateToNormal() {
mOpen = false;
mRunning = false;
unscheduleSelf(opener);
invalidateSelf();
}
private Runnable opener = new Runnable() {
@Override
public void run() {
mOpen = true;
invalidateSelf();
mRunning = false;
}
};
@Override
public void start() {
//NOOP
}
@Override
public void stop() {
animateToNormal();
}
@Override
public boolean isRunning() {
return mRunning;
}
}