gecko/mobile/android/base/TabsPanelButton.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Path;
import android.graphics.PorterDuff.Mode;
import android.util.AttributeSet;
public class TabsPanelButton extends ShapedButton {
public TabsPanelButton(Context context, AttributeSet attrs) {
super(context, attrs);
// Path is clipped.
mPath = new Path();
mCanvasDelegate = new CanvasDelegate(this, Mode.DST_OUT);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = getMeasuredWidth();
int height = getMeasuredHeight();
float curve = height * 1.125f;
mPath.reset();
// Clipping happens on opposite side for menu.
if (mSide == CurveTowards.LEFT) {
mPath.moveTo(0, height);
mPath.cubicTo(curve * 0.75f, height,
curve * 0.25f, 0,
curve, 0);
mPath.lineTo(0, 0);
mPath.lineTo(0, height);
} else if (mSide == CurveTowards.RIGHT) {
mPath.moveTo(width, height);
mPath.cubicTo((width - (curve * 0.75f)), height,
(width - (curve * 0.25f)), 0,
(width - curve), 0);
mPath.lineTo(width, 0);
mPath.lineTo(width, height);
}
}
}