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/*
* Copyright (C) 2014 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 com.android.systemui.statusbar;
import android.content.Context;
import android.graphics.Outline;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewOutlineProvider;
import com.android.systemui.R;
/**
* Like {@link ExpandableView}, but setting an outline for the height and clipping.
*/
public abstract class ExpandableOutlineView extends ExpandableView {
private final Rect mOutlineRect = new Rect();
protected final int mRoundedRectCornerRadius;
private boolean mCustomOutline;
public ExpandableOutlineView(Context context, AttributeSet attrs) {
super(context, attrs);
mRoundedRectCornerRadius = getResources().getDimensionPixelSize(
R.dimen.notification_material_rounded_rect_radius);
setOutlineProvider(new ViewOutlineProvider() {
@Override
public void getOutline(View view, Outline outline) {
if (!mCustomOutline) {
outline.setRect(0,
mClipTopAmount,
getWidth(),
Math.max(getActualHeight(), mClipTopAmount));
} else {
outline.setRoundRect(mOutlineRect, mRoundedRectCornerRadius);
}
}
});
}
@Override
public void setActualHeight(int actualHeight, boolean notifyListeners) {
super.setActualHeight(actualHeight, notifyListeners);
invalidateOutline();
}
@Override
public void setClipTopAmount(int clipTopAmount) {
super.setClipTopAmount(clipTopAmount);
invalidateOutline();
}
protected void setOutlineRect(RectF rect) {
if (rect != null) {
setOutlineRect(rect.left, rect.top, rect.right, rect.bottom);
} else {
mCustomOutline = false;
setClipToOutline(false);
invalidateOutline();
}
}
protected void setOutlineRect(float left, float top, float right, float bottom) {
mCustomOutline = true;
setClipToOutline(true);
mOutlineRect.set((int) left, (int) top, (int) right, (int) bottom);
// Outlines need to be at least 1 dp
mOutlineRect.bottom = (int) Math.max(top, mOutlineRect.bottom);
mOutlineRect.right = (int) Math.max(left, mOutlineRect.right);
invalidateOutline();
}
}
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