fbbf8cf16b
fbshipit-source-id: b6fc29740c6875d2e78953b8a7123890a67930f2 Co-authored-by: Sebastian McKenzie <sebmck@fb.com> Co-authored-by: John Knox <jknox@fb.com> Co-authored-by: Emil Sjölander <emilsj@fb.com> Co-authored-by: Pritesh Nandgaonkar <prit91@fb.com>
70 lines
2.2 KiB
Java
70 lines
2.2 KiB
Java
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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*
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*/
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package com.facebook.sonar.plugins.inspector;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.os.Build;
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import android.view.View;
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/**
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* A singleton instance of a overlay drawable used for highlighting node bounds. See {@link
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* NodeDescriptor#setHighlighted(Object, boolean)}.
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*/
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public class HighlightedOverlay {
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private static final boolean VIEW_OVERLAY_SUPPORT =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2;
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/**
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* Highlights a particular view with its content bounds, padding and margin dimensions
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*
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* @param targetView The view to apply the highlight on
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* @param margin A {@link Rect} containing the margin values
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* @param padding A {@link Rect} containing the padding values
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* @param contentBounds The {@link Rect} bounds of the content, which includes padding
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*/
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public static void setHighlighted(
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View targetView, Rect margin, Rect padding, Rect contentBounds) {
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if (!VIEW_OVERLAY_SUPPORT) {
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return;
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}
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contentBounds.set(
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contentBounds.left + padding.left,
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contentBounds.top + padding.top,
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contentBounds.right - padding.right,
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contentBounds.bottom - padding.bottom);
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padding = enclose(padding, contentBounds);
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margin = enclose(margin, padding);
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final float density = targetView.getContext().getResources().getDisplayMetrics().density;
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final Drawable overlay = BoundsDrawable.getInstance(density, margin, padding, contentBounds);
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targetView.getOverlay().add(overlay);
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}
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public static void removeHighlight(View targetView) {
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if (!VIEW_OVERLAY_SUPPORT) {
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return;
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}
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final float density = targetView.getContext().getResources().getDisplayMetrics().density;
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final Drawable overlay = BoundsDrawable.getInstance(density);
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targetView.getOverlay().remove(overlay);
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}
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private static Rect enclose(Rect parent, Rect child) {
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return new Rect(
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child.left - parent.left,
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child.top - parent.top,
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child.right + parent.right,
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child.bottom + parent.bottom);
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}
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}
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