111 lines
2.3 KiB
Java
111 lines
2.3 KiB
Java
/*
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* Copyright 2013 serso aka se.solovyev
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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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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Contact details
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*
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* Email: se.solovyev@gmail.com
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* Site: http://se.solovyev.org
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*/
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package org.solovyev.android.calculator.plot;
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import javax.annotation.Nonnull;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* User: serso
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* Date: 1/18/13
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* Time: 8:32 PM
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*/
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public class GraphsData {
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@Nonnull
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private final GraphView graphView;
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@Nonnull
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private List<GraphData> graphs;
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private float lastXMin;
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private float lastXMax;
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private float lastYMin;
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private float lastYMax;
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public GraphsData(@Nonnull GraphView graphView) {
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this.graphView = graphView;
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graphs = new ArrayList<GraphData>(graphView.getPlotFunctions().size());
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}
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public void clear() {
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for (GraphData graph : graphs) {
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graph.clear();
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}
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while (graphView.getPlotFunctions().size() > graphs.size()) {
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graphs.add(GraphData.newEmptyInstance());
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}
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lastYMin = 0;
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lastYMax = 0;
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}
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@Nonnull
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public List<GraphData> getGraphs() {
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return graphs;
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}
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public float getLastXMin() {
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return lastXMin;
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}
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public float getLastXMax() {
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return lastXMax;
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}
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public float getLastYMin() {
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return lastYMin;
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}
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public float getLastYMax() {
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return lastYMax;
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}
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void checkBoundaries(float graphHeight, float yMin, float yMax) {
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if (yMin < lastYMin || yMax > lastYMax) {
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float halfGraphHeight = graphHeight / 2;
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clear();
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lastYMin = yMin - halfGraphHeight;
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lastYMax = yMax + halfGraphHeight;
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}
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}
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public void setLastXMin(float lastXMin) {
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this.lastXMin = lastXMin;
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}
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public void setLastXMax(float lastXMax) {
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this.lastXMax = lastXMax;
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}
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@Nonnull
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public GraphData get(int i) {
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return this.graphs.get(i);
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}
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}
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