| /* |
| * 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.example.android.renderscriptintrinsic; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.LayerDrawable; |
| import android.graphics.drawable.ShapeDrawable; |
| import android.graphics.drawable.StateListDrawable; |
| import android.graphics.drawable.shapes.RectShape; |
| import android.os.Build; |
| import android.view.Gravity; |
| import android.widget.RadioButton; |
| import android.content.Context; |
| import android.util.AttributeSet; |
| |
| /* |
| A button with Thumbnail which extends Radio Button. |
| The widget override a background drawable of Radio Button with a StateList Drawable. |
| Each state has a LayerDrawable with a Thumbnail image and a Focus rectangle. |
| It's using original Radio Buttons text as a label, because LayerDrawable showed some issues with Canvas.drawText(). |
| */ |
| public class ThumbnailRadioButton extends RadioButton { |
| public ThumbnailRadioButton(Context context) { |
| super(context); |
| init(); |
| } |
| |
| public ThumbnailRadioButton(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| init(); |
| } |
| |
| public ThumbnailRadioButton(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| init(); |
| } |
| |
| private void init() { |
| setButtonDrawable(android.R.color.transparent); |
| } |
| |
| public void setThumbnail(Bitmap bitmap) { |
| //Bitmap drawable |
| BitmapDrawable bmp = new BitmapDrawable(getResources(), bitmap); |
| bmp.setGravity(Gravity.CENTER); |
| |
| int strokeWidth = 24; |
| //Checked state |
| ShapeDrawable rectChecked = new ShapeDrawable(new RectShape()); |
| rectChecked.getPaint().setColor(0xFFFFFFFF); |
| rectChecked.getPaint().setStyle(Paint.Style.STROKE); |
| rectChecked.getPaint().setStrokeWidth(strokeWidth); |
| rectChecked.setIntrinsicWidth(bitmap.getWidth() + strokeWidth); |
| rectChecked.setIntrinsicHeight(bitmap.getHeight() + strokeWidth); |
| Drawable drawableArray[] = new Drawable[]{bmp, rectChecked}; |
| LayerDrawable layerChecked = new LayerDrawable(drawableArray); |
| |
| //Unchecked state |
| ShapeDrawable rectUnchecked = new ShapeDrawable(new RectShape()); |
| rectUnchecked.getPaint().setColor(0x0); |
| rectUnchecked.getPaint().setStyle(Paint.Style.STROKE); |
| rectUnchecked.getPaint().setStrokeWidth(strokeWidth); |
| rectUnchecked.setIntrinsicWidth(bitmap.getWidth() + strokeWidth); |
| rectUnchecked.setIntrinsicHeight(bitmap.getHeight() + strokeWidth); |
| Drawable drawableArray2[] = new Drawable[]{bmp, rectUnchecked}; |
| LayerDrawable layerUnchecked = new LayerDrawable(drawableArray2); |
| |
| //Statelist drawable |
| StateListDrawable states = new StateListDrawable(); |
| states.addState(new int[]{android.R.attr.state_checked}, |
| layerChecked); |
| states.addState(new int[]{}, |
| layerUnchecked); |
| |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) |
| setBackground(states); |
| else |
| setBackgroundDrawable(states); |
| |
| //Offset text to center/bottom of the checkbox |
| Paint paint = new Paint(); |
| paint.setAntiAlias(true); |
| paint.setTextSize(getTextSize()); |
| paint.setTypeface(getTypeface()); |
| float w = paint.measureText(getText(), 0, getText().length()); |
| setPadding(getPaddingLeft() + (int) ((bitmap.getWidth() - w) / 2.f + .5f), |
| getPaddingTop() + (int) (bitmap.getHeight() * 0.70), |
| getPaddingRight(), |
| getPaddingBottom()); |
| |
| setShadowLayer(5, 0, 0, Color.BLACK); |
| } |
| } |