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Viewing changes to systemtap/org.eclipse.linuxtools.systemtap.ui.graphingapi.ui/src/org/eclipse/linuxtools/systemtap/ui/graphingapi/ui/charts/AbstractChartBuilder.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2012-06-29 12:07:30 UTC
  • Revision ID: package-import@ubuntu.com-20120629120730-bfri1xys1i71dpn6
Tags: upstream-1.0.0
Import upstream version 1.0.0

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systemtap/org.eclipse.linuxtools.systemtap.ui.graphingapi.ui/src/org/eclipse/linuxtools/systemtap/ui/graphingapi/ui/charts/AbstractChartBuilder.java
 
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/****************************************************************
 
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 * Licensed Material - Property of IBM
 
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 *
 
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 * ****-*** 
 
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 *
 
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 * (c) Copyright IBM Corp. 2006.  All rights reserved.
 
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 *
 
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 * US Government Users Restricted Rights - Use, duplication or
 
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 * disclosure restricted by GSA ADP Schedule Contract with
 
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 * IBM Corp.
 
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 *
 
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 ****************************************************************
 
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 */
 
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package org.eclipse.linuxtools.systemtap.ui.graphingapi.ui.charts;
 
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import org.eclipse.jface.preference.IPreferenceStore;
 
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import org.eclipse.linuxtools.internal.systemtap.ui.graphingapi.ui.GraphingAPIUIPlugin;
 
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import org.eclipse.linuxtools.systemtap.ui.graphingapi.ui.preferences.GraphingAPIPreferenceConstants;
 
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import org.eclipse.swt.graphics.Color;
 
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import org.eclipse.swt.layout.FillLayout;
 
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import org.eclipse.swt.SWT;
 
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import org.eclipse.swt.widgets.Composite;
 
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import org.eclipse.linuxtools.systemtap.ui.graphingapi.nonui.adapters.IAdapter;
 
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import org.eclipse.linuxtools.systemtap.ui.structures.listeners.IUpdateListener;
 
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import org.eclipse.swt.widgets.Display;
 
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import org.swtchart.Chart;
 
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import org.swtchart.ITitle;
 
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/**
 
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 * Provides the common members and the framework to build one chart.
 
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 * 
 
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 * @author Qi Liang
 
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 */
 
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public abstract class AbstractChartBuilder extends Composite implements IUpdateListener{
 
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        /**
 
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         * Font name for all titles, labels, and values.
 
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         */
 
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        protected final static String FONT_NAME = "MS Sans Serif";
 
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        protected int maxItems;
 
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        protected double scale = 1.0;
 
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        /**
 
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         * Provides data for chart.
 
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         */
 
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        protected IAdapter adapter = null;
 
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        protected int xseries;
 
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        protected int[] yseries;
 
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        protected static final Color WHITE = new Color(Display.getDefault(), 255, 255, 255);
 
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        protected static final Color BLACK = new Color(Display.getDefault(), 0, 0, 0);
 
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        protected static final Color RED = new Color(Display.getDefault(), 255, 0, 0);
 
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        protected static final Color[] COLORS = {
 
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                                                                                                new Color(Display.getDefault(), 255, 0, 0),
 
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                                                                                                new Color(Display.getDefault(), 0, 255, 0),
 
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                                                                                                new Color(Display.getDefault(), 0, 0, 255),
 
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                                                                                                new Color(Display.getDefault(), 255, 255, 0),
 
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                                                                                                new Color(Display.getDefault(), 255, 0, 255),
 
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                                                                                                new Color(Display.getDefault(), 0, 255, 255),
 
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                                                                                                new Color(Display.getDefault(), 0, 0, 0),
 
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                                                                                                new Color(Display.getDefault(), 64, 128, 128),
 
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                                                                                                new Color(Display.getDefault(), 255, 165, 0),
 
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                                                                                                new Color(Display.getDefault(), 128, 128, 128),
 
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                                                                                                };
 
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        /**
 
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         * Chart instance.
 
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         */
 
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        protected Chart chart = null;
 
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        /**
 
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         * Chart title.
 
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         */
 
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        protected String title = null;
 
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        /**
 
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         * Constructs one chart builder and associate it to one data set.
 
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         * 
 
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         * @param dataSet
 
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         *            data set
 
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         */
 
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        public AbstractChartBuilder(IAdapter adapter, Composite parent, int style, String title) {
 
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                super(parent, style);
 
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                this.adapter = adapter;
 
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                this.title = title;
 
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                this.setLayout(new FillLayout());
 
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                IPreferenceStore store = GraphingAPIUIPlugin.getDefault().getPreferenceStore();
 
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                maxItems = Math.min(store.getInt(GraphingAPIPreferenceConstants.P_VIEWABLE_DATA_ITEMS),
 
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                                                                        store.getInt(GraphingAPIPreferenceConstants.P_MAX_DATA_ITEMS));
 
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        }
 
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        /**
 
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         * Builds one chart.
 
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         */
 
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        public void build() {
 
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                createChart();
 
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                buildPlot();
 
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                buildLegend();
 
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                buildTitle();
 
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                buildXAxis();
 
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                buildYAxis();
 
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                buildXSeries();
 
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                buildYSeries();
 
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                updateDataSet();
 
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        }
 
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        /**
 
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         * Creates chart instance.
 
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         */
 
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        protected void createChart() {
 
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                this.chart = new Chart(this, getStyle());
 
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        }
 
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        /**
 
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         * Builds plot.
 
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         */
 
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        protected void buildPlot() {
 
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                this.chart.setBackground(WHITE);
 
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                this.chart.setBackgroundInPlotArea(WHITE);
 
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        }
 
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        /**
 
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         * Builds X axis.
 
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         */
 
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        protected void buildXAxis() {
 
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        }
 
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        /**
 
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         * Builds Y axis.
 
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         */
 
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        protected void buildYAxis() {
 
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        }
 
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        /**
 
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         * Builds X series.
 
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         */
 
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        protected void buildXSeries() {
 
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        }
 
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        /**
 
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         * Builds Y series.
 
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         */
 
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        protected void buildYSeries() {
 
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        }
 
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        /**
 
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         * Builds legend.
 
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         * 
 
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         */
 
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        protected void buildLegend() {
 
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                chart.getLegend().setPosition(SWT.RIGHT);
 
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        }
 
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        /**
 
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         * Builds the chart title.
 
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         */
 
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        protected void buildTitle() {
 
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                ITitle ctitle = chart.getTitle();
 
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                ctitle.setForeground(BLACK);
 
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                ctitle.setText(this.title);
 
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        }
 
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        /**
 
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         * Returns the chart instance.
 
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         * 
 
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         * @return the chart instance
 
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         */
 
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        public Chart getChart() {
 
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                return chart;
 
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        }
 
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        public void updateDataSet() {
 
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        }
 
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        public void setScale(double scale) {
 
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                this.scale = scale;
 
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                handleUpdateEvent();
 
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        }
 
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        protected double getDoubleValue(Object o) {
 
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                if (o instanceof Integer)
 
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                        return ((Integer)o).intValue();
 
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                if (o instanceof Double)
 
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                        return ((Double)o).doubleValue();
 
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                return new Double(o.toString()).doubleValue();
 
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        }
 
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        public void handleUpdateEvent() {
 
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                try{
 
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                        repaint();
 
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                }catch(Exception e)
 
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                {
 
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                        //e.printStackTrace();
 
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                }
 
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        }
 
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        protected void repaint() {
 
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                getDisplay().syncExec(new Runnable() {
 
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                        boolean stop = false;
 
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                        public void run() {
 
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                                if(stop)
 
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                                        return;
 
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                                try {
 
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                                        updateDataSet();
 
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                                } catch (Exception e) {
 
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                                        stop = true;
 
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                                }
 
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            }
 
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                });
 
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        }
 
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}