org.eclipse.linuxtools.dataviewers.charts.view.ChartView.java Source code

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Here is the source code for org.eclipse.linuxtools.dataviewers.charts.view.ChartView.java

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/*******************************************************************************
 * Copyright (c) 2009 STMicroelectronics.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Marzia Maugeri <marzia.maugeri@st.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.linuxtools.dataviewers.charts.view;

import org.eclipse.birt.chart.model.Chart;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.linuxtools.dataviewers.charts.Activator;
import org.eclipse.linuxtools.dataviewers.charts.actions.SaveChartAction;
import org.eclipse.linuxtools.dataviewers.charts.actions.SaveXMLAction;
import org.eclipse.linuxtools.dataviewers.charts.viewer.ChartViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;

/**
 * The chart view.
 * 
 * <br/>This view is multiple and all the created chart will be displayed in an instance of this view.
 * Each one will have a primary id equals to ChartView.VIEW_ID and an integer (increased by 1 at each new view) for the secondary id.
 * 
 * @author Marzia Maugeri <marzia.maugeri@st.com>
 *
 */
public class ChartView extends ViewPart {

    /** The primary id of this view */
    public static final String VIEW_ID = "org.eclipse.linuxtools.dataviewers.charts.view";

    /** The current secondary id for these views */
    private static Integer SEC_ID = 0;

    private Canvas paintCanvas;

    private ChartViewer chartViewer;

    private SaveChartAction saveChartAction;

    private SaveXMLAction saveXMLAction;

    /**
     * Create and open a new chart view
     * <br/>
     * <br/><u><b>Note</b></u>: this method uses the UI thread to open the view and then it sets the input chart.
     * The UI thread execution is synchronized on internal Integer SEC_ID which is the secondary id of the chart view.
     * Each new chart view has a secondary id equal to SEC_ID++. 
     * 
     * @param chart
     */
    public static void createChartView(final Chart chart) {
        PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() {
            public void run() {
                try {
                    synchronized (SEC_ID) {
                        ChartView view = (ChartView) PlatformUI.getWorkbench().getActiveWorkbenchWindow()
                                .getActivePage().showView(VIEW_ID, "" + (SEC_ID++), IWorkbenchPage.VIEW_ACTIVATE);
                        view.setChart(chart);

                    }
                } catch (PartInitException e) {
                    Status s = new Status(Status.ERROR, Activator.PLUGIN_ID, Status.ERROR, e.getMessage(), e);
                    Activator.getDefault().getLog().log(s);
                }
            }
        });

    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createPartControl(Composite parent) {
        try {
            paintCanvas = new Canvas(parent, SWT.NONE);
            paintCanvas.setLayoutData(new GridData(GridData.FILL_BOTH));
            paintCanvas.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
            chartViewer = new ChartViewer();
            paintCanvas.addPaintListener(chartViewer);
            paintCanvas.addControlListener(chartViewer);
            chartViewer.setViewer(paintCanvas);

            createActions(parent);
            IActionBars actionBars = getViewSite().getActionBars();
            initToolBar(actionBars.getToolBarManager());

        } catch (Throwable _) {
            Status s = new Status(Status.ERROR, Activator.PLUGIN_ID, Status.ERROR,
                    "Error when creating AWT Frame...", _);
            Activator.getDefault().getLog().log(s);
        }
    }

    protected void createActions(Composite parent) {
        saveChartAction = new SaveChartAction(getViewSite().getShell(), this);
        saveXMLAction = new SaveXMLAction(parent);
        //openChartAction = new OpenChartAction(getViewSite().getShell(),this);
    }

    protected void initToolBar(IToolBarManager manager) {
        manager.add(saveChartAction);
        manager.add(saveXMLAction);
        //manager.add(openChartAction);
        manager.update(true);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
     */
    @Override
    public void setFocus() {
        if (paintCanvas != null) {
            paintCanvas.setFocus();
        } else {
            Status s = new Status(Status.ERROR, Activator.PLUGIN_ID,
                    "Error setting the focus to the chart view: main composite is not set!");
            Activator.getDefault().getLog().log(s);
        }
    }

    /**
     * Close this view
     * <br/>
     * <br/><u><b>Note</b></u>: it uses the UI thread to get the workbench window. Then it closes the view.
     */
    public void closeView() {
        PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() {
            public void run() {
                PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().hideView(ChartView.this);
            }
        });
    }

    /**
     * Set the chart in this view
     * 
     * @param chart
     */
    public void setChart(Chart chart) {
        if (chart != null) {
            chartViewer.renderModel(chart);
            saveChartAction.setChart(chart);
            saveChartAction.setBounds(chartViewer.getBounds());
            saveXMLAction.setChart(chart);

        } else {
            saveChartAction.setEnabled(false);
            Status s = new Status(Status.ERROR, Activator.PLUGIN_ID,
                    "Error adding the chart to the chart view: SWT is not set!");
            Activator.getDefault().getLog().log(s);
        }
    }

    public ChartViewer getChartViewer() {
        return chartViewer;
    }

    public void setChartViewer(ChartViewer cv) {
        chartViewer = cv;
    }

    public void dispose() {
        super.dispose();
    }
}