mirror of
https://github.com/LawnchairLauncher/lawnchair.git
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48cb7bc7a4
Bug: 115891474 Sending out the package name changing CL first before I make LauncherIconsHandler and tests around it. Change-Id: Ic10479a06333e1435b392a7072cd08782e710cbd
101 lines
3.8 KiB
Java
101 lines
3.8 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.badge;
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import static android.graphics.Paint.ANTI_ALIAS_FLAG;
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import static android.graphics.Paint.FILTER_BITMAP_FLAG;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.util.Log;
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import com.android.launcher3.icons.ShadowGenerator;
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/**
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* Contains parameters necessary to draw a badge for an icon (e.g. the size of the badge).
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* @see BadgeInfo for the data to draw
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*/
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public class BadgeRenderer {
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private static final String TAG = "BadgeRenderer";
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// The badge sizes are defined as percentages of the app icon size.
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private static final float SIZE_PERCENTAGE = 0.38f;
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// Extra scale down of the dot
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private static final float DOT_SCALE = 0.6f;
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// Used to expand the width of the badge for each additional digit.
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private static final float OFFSET_PERCENTAGE = 0.02f;
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private final float mDotCenterOffset;
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private final int mOffset;
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private final float mCircleRadius;
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private final Paint mCirclePaint = new Paint(ANTI_ALIAS_FLAG | FILTER_BITMAP_FLAG);
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private final Bitmap mBackgroundWithShadow;
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private final float mBitmapOffset;
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public BadgeRenderer(int iconSizePx) {
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mDotCenterOffset = SIZE_PERCENTAGE * iconSizePx;
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mOffset = (int) (OFFSET_PERCENTAGE * iconSizePx);
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int size = (int) (DOT_SCALE * mDotCenterOffset);
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ShadowGenerator.Builder builder = new ShadowGenerator.Builder(Color.TRANSPARENT);
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builder.ambientShadowAlpha = 88;
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mBackgroundWithShadow = builder.setupBlurForSize(size).createPill(size, size);
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mCircleRadius = builder.radius;
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mBitmapOffset = -mBackgroundWithShadow.getHeight() * 0.5f; // Same as width.
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}
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/**
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* Draw a circle in the top right corner of the given bounds, and draw
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* {@link BadgeInfo#getNotificationCount()} on top of the circle.
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* @param color The color (based on the icon) to use for the badge.
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* @param iconBounds The bounds of the icon being badged.
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* @param badgeScale The progress of the animation, from 0 to 1.
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* @param spaceForOffset How much space is available to offset the badge up and to the right.
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*/
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public void draw(
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Canvas canvas, int color, Rect iconBounds, float badgeScale, Point spaceForOffset) {
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if (iconBounds == null || spaceForOffset == null) {
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Log.e(TAG, "Invalid null argument(s) passed in call to draw.");
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return;
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}
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canvas.save();
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// We draw the badge relative to its center.
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float badgeCenterX = iconBounds.right - mDotCenterOffset / 2;
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float badgeCenterY = iconBounds.top + mDotCenterOffset / 2;
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int offsetX = Math.min(mOffset, spaceForOffset.x);
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int offsetY = Math.min(mOffset, spaceForOffset.y);
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canvas.translate(badgeCenterX + offsetX, badgeCenterY - offsetY);
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canvas.scale(badgeScale, badgeScale);
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mCirclePaint.setColor(Color.BLACK);
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canvas.drawBitmap(mBackgroundWithShadow, mBitmapOffset, mBitmapOffset, mCirclePaint);
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mCirclePaint.setColor(color);
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canvas.drawCircle(0, 0, mCircleRadius, mCirclePaint);
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canvas.restore();
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}
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}
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