AbstractTool.java

/**
 * Copyright (C) 2009, 2010 SC 4ViewSoft SRL
 *  
 * 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.androsz.achartengine.tools;

import com.androsz.achartengine.chart.XYChart;
import com.androsz.achartengine.renderer.XYMultipleSeriesRenderer;

/**
 * Abstract class for being extended by graphical view tools.
 */
public abstract class AbstractTool {
	/** The chart. */
	protected XYChart mChart;
	/** The renderer. */
	protected XYMultipleSeriesRenderer mRenderer;

	/**
	 * Abstract tool constructor.
	 * 
	 * @param chart
	 *            the chart
	 */
	public AbstractTool(XYChart chart) {
		mChart = chart;
		mRenderer = chart.getRenderer();
	}

	public void checkRange(double[] range) {
		final double[] calcRange = mChart.getCalcRange();
		if (!mRenderer.isMinXSet()) {
			range[0] = calcRange[0];
			mRenderer.setXAxisMin(range[0]);
		}
		if (!mRenderer.isMaxXSet()) {
			range[1] = calcRange[1];
			mRenderer.setXAxisMax(range[1]);
		}
		if (!mRenderer.isMinYSet()) {
			range[2] = calcRange[2];
			mRenderer.setYAxisMin(range[2]);
		}
		if (!mRenderer.isMaxYSet()) {
			range[3] = calcRange[3];
			mRenderer.setYAxisMax(range[3]);
		}
	}

	public double[] getRange() {
		final double minX = mRenderer.getXAxisMin();
		final double maxX = mRenderer.getXAxisMax();
		final double minY = mRenderer.getYAxisMin();
		final double maxY = mRenderer.getYAxisMax();
		return new double[] { minX, maxX, minY, maxY };
	}

	protected void setXRange(double min, double max) {
		mRenderer.setXAxisMin(min);
		mRenderer.setXAxisMax(max);
	}

	protected void setYRange(double min, double max) {
		mRenderer.setYAxisMin(min);
		mRenderer.setYAxisMax(max);
	}

}