Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Jim Miller | 5ecd811 | 2013-01-09 18:50:26 -0800 | [diff] [blame] | 17 | package com.android.keyguard; |
Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 18 | |
| 19 | import android.graphics.Bitmap; |
| 20 | import android.graphics.Canvas; |
| 21 | import android.graphics.Color; |
| 22 | import android.graphics.ColorFilter; |
| 23 | import android.graphics.Paint; |
| 24 | import android.graphics.Path; |
| 25 | import android.graphics.PixelFormat; |
| 26 | import android.graphics.PorterDuff; |
| 27 | import android.graphics.PorterDuffXfermode; |
| 28 | import android.graphics.Rect; |
| 29 | import android.graphics.RectF; |
Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 30 | import android.graphics.drawable.Drawable; |
| 31 | |
| 32 | import android.util.Log; |
| 33 | |
| 34 | class KeyguardCircleFramedDrawable extends Drawable { |
| 35 | |
| 36 | private final Bitmap mBitmap; |
| 37 | private final int mSize; |
| 38 | private final Paint mPaint; |
| 39 | private final float mShadowRadius; |
| 40 | private final float mStrokeWidth; |
| 41 | private final int mFrameColor; |
| 42 | private final int mHighlightColor; |
| 43 | private final int mFrameShadowColor; |
| 44 | |
| 45 | private float mScale; |
| 46 | private Path mFramePath; |
| 47 | private Rect mSrcRect; |
| 48 | private RectF mDstRect; |
| 49 | private RectF mFrameRect; |
| 50 | private boolean mPressed; |
| 51 | |
| 52 | public KeyguardCircleFramedDrawable(Bitmap bitmap, int size, |
| 53 | int frameColor, float strokeWidth, |
| 54 | int frameShadowColor, float shadowRadius, |
| 55 | int highlightColor) { |
| 56 | super(); |
| 57 | mSize = size; |
| 58 | mShadowRadius = shadowRadius; |
| 59 | mFrameColor = frameColor; |
| 60 | mFrameShadowColor = frameShadowColor; |
| 61 | mStrokeWidth = strokeWidth; |
| 62 | mHighlightColor = highlightColor; |
| 63 | |
| 64 | mBitmap = Bitmap.createBitmap(mSize, mSize, Bitmap.Config.ARGB_8888); |
| 65 | final Canvas canvas = new Canvas(mBitmap); |
| 66 | |
| 67 | final int width = bitmap.getWidth(); |
| 68 | final int height = bitmap.getHeight(); |
| 69 | final int square = Math.min(width, height); |
| 70 | |
| 71 | final Rect cropRect = new Rect((width - square) / 2, (height - square) / 2, square, square); |
| 72 | final RectF circleRect = new RectF(0f, 0f, mSize, mSize); |
| 73 | circleRect.inset(mStrokeWidth / 2f, mStrokeWidth / 2f); |
| 74 | circleRect.inset(mShadowRadius, mShadowRadius); |
| 75 | |
| 76 | final Path fillPath = new Path(); |
| 77 | fillPath.addArc(circleRect, 0f, 360f); |
| 78 | |
| 79 | canvas.drawColor(0, PorterDuff.Mode.CLEAR); |
| 80 | |
| 81 | // opaque circle matte |
| 82 | mPaint = new Paint(); |
| 83 | mPaint.setAntiAlias(true); |
| 84 | mPaint.setColor(Color.BLACK); |
| 85 | mPaint.setStyle(Paint.Style.FILL); |
| 86 | canvas.drawPath(fillPath, mPaint); |
| 87 | |
| 88 | // mask in the icon where the bitmap is opaque |
| 89 | mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_ATOP)); |
| 90 | canvas.drawBitmap(bitmap, cropRect, circleRect, mPaint); |
| 91 | |
| 92 | // prepare paint for frame drawing |
| 93 | mPaint.setXfermode(null); |
| 94 | |
| 95 | mScale = 1f; |
| 96 | |
| 97 | mSrcRect = new Rect(0, 0, mSize, mSize); |
| 98 | mDstRect = new RectF(0, 0, mSize, mSize); |
| 99 | mFrameRect = new RectF(mDstRect); |
| 100 | mFramePath = new Path(); |
| 101 | } |
| 102 | |
Amith Yamasani | 6fc1d4e | 2013-05-08 16:43:58 -0700 | [diff] [blame] | 103 | public void reset() { |
| 104 | mScale = 1f; |
| 105 | mPressed = false; |
| 106 | } |
| 107 | |
Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 108 | @Override |
| 109 | public void draw(Canvas canvas) { |
| 110 | // clear background |
| 111 | final float outside = Math.min(canvas.getWidth(), canvas.getHeight()); |
| 112 | final float inside = mScale * outside; |
| 113 | final float pad = (outside - inside) / 2f; |
| 114 | |
| 115 | mDstRect.set(pad, pad, outside - pad, outside - pad); |
| 116 | canvas.drawBitmap(mBitmap, mSrcRect, mDstRect, null); |
| 117 | |
| 118 | mFrameRect.set(mDstRect); |
| 119 | mFrameRect.inset(mStrokeWidth / 2f, mStrokeWidth / 2f); |
| 120 | mFrameRect.inset(mShadowRadius, mShadowRadius); |
| 121 | |
| 122 | mFramePath.reset(); |
| 123 | mFramePath.addArc(mFrameRect, 0f, 360f); |
| 124 | |
| 125 | // white frame |
| 126 | if (mPressed) { |
| 127 | mPaint.setStyle(Paint.Style.FILL); |
| 128 | mPaint.setColor(Color.argb((int) (0.33f * 255), |
| 129 | Color.red(mHighlightColor), |
| 130 | Color.green(mHighlightColor), |
| 131 | Color.blue(mHighlightColor))); |
| 132 | canvas.drawPath(mFramePath, mPaint); |
| 133 | } |
| 134 | mPaint.setStrokeWidth(mStrokeWidth); |
| 135 | mPaint.setStyle(Paint.Style.STROKE); |
| 136 | mPaint.setColor(mPressed ? mHighlightColor : mFrameColor); |
| 137 | mPaint.setShadowLayer(mShadowRadius, 0f, 0f, mFrameShadowColor); |
| 138 | canvas.drawPath(mFramePath, mPaint); |
| 139 | } |
| 140 | |
| 141 | public void setScale(float scale) { |
Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 142 | mScale = scale; |
| 143 | } |
| 144 | |
| 145 | public float getScale() { |
| 146 | return mScale; |
| 147 | } |
| 148 | |
| 149 | public void setPressed(boolean pressed) { |
| 150 | mPressed = pressed; |
| 151 | } |
| 152 | |
| 153 | @Override |
| 154 | public int getOpacity() { |
| 155 | return PixelFormat.TRANSLUCENT; |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public void setAlpha(int alpha) { |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | public void setColorFilter(ColorFilter cf) { |
| 164 | } |
Amith Yamasani | 6fc1d4e | 2013-05-08 16:43:58 -0700 | [diff] [blame] | 165 | |
| 166 | public boolean verifyParams(float iconSize, int frameColor, float stroke, |
| 167 | int frameShadowColor, float shadowRadius, int highlightColor) { |
| 168 | return mSize == iconSize |
| 169 | && mFrameColor == frameColor |
| 170 | && mStrokeWidth == stroke |
| 171 | && mFrameShadowColor == frameShadowColor |
| 172 | && mShadowRadius == shadowRadius |
| 173 | && mHighlightColor == highlightColor; |
| 174 | } |
Chris Wren | 692bb13 | 2012-10-23 13:37:36 -0400 | [diff] [blame] | 175 | } |