/* * Copyright 2014 Realm Inc. * * 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 io.realm.examples.threads.widget; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.util.AttributeSet; import android.view.View; import io.realm.RealmResults; import io.realm.examples.threads.model.Dot; /** * Custom view that plot (x,y) coordinates from a RealmQuery */ public class DotsView extends View { // RealmResults will automatically be up to date. private RealmResults<Dot> results; private Paint circlePaint; private float circleRadius; private float pixelsPrWidth; private float pixelsPrHeight; public DotsView(Context context) { super(context); init(); } public DotsView(Context context, AttributeSet attrs) { super(context, attrs); init(); } public DotsView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(); } private void init() { circlePaint = new Paint(Paint.ANTI_ALIAS_FLAG); circlePaint.setStyle(Paint.Style.FILL); circlePaint.setColor(Color.RED); circleRadius = 10; } public void setRealmResults(RealmResults results) { this.results = results; invalidate(); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); pixelsPrWidth = w/100f; pixelsPrHeight = h/100f; } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawColor(Color.TRANSPARENT); for (Dot dot : results) { circlePaint.setColor(dot.getColor()); canvas.drawCircle(dot.getX()*pixelsPrWidth, dot.getY()*pixelsPrHeight, circleRadius, circlePaint); } } }