ViewerWindowManager.java

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package edu.rice.cs.hpc.viewer.window;

import java.util.Vector;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.IWorkbenchWindow;

import edu.rice.cs.hpc.viewer.util.WindowTitle;

public class ViewerWindowManager {
    private static Vector<ViewerWindow> vWindows = new Vector<ViewerWindow>(3);

    static public int getWindowNumber (IWorkbenchWindow window) {
        for (int i=0 ; i<vWindows.size() ; i++) {
            if (vWindows.get(i) == null) {
                continue;
            }
            // if this is our callers window, return its index
            if (vWindows.get(i).getWinObj().equals(window)) {
                return i;
            }
        }
        return -1;
    }

    public void addNewWindow (IWorkbenchWindow window) {
        // get a new viewer window object and set the workbench window it is tied to
        ViewerWindow vWin = new ViewerWindow();
        vWin.setWinObj(window);

        // see if there are any unused slots
        vWindows.add(vWin);
        
        // after the new window is added, we must update all the old windows titles
        WindowTitle wt = new WindowTitle();
        wt.refreshAllTitles();
        return;
    }

    static public Boolean removeWindow (IWorkbenchWindow window) {
        for (int i=0 ; i<vWindows.size() ; i++) {
            final ViewerWindow vw = vWindows.get(i);
            if (vw == null) {
                continue;
            }

            // if this is the one to remove, set it to null so it can be reused later
            if (vw.getWinObj().equals(window)) {
                vw.dispose();
                // set this to something that will cause problems if used before being reset
                vWindows.remove(i);
                // after the window is removed, we must update remaining window titles (may need to remove window numbers)
                WindowTitle wt = new WindowTitle();
                wt.refreshAllTitles();
                return true;
            }
        }

        MessageDialog.openError(window.getShell(), 
                "Error: Removing Window from Database Manager.", 
                "Window " + window.toString() + " not found in the list of window objects.");
        return false;
    }

    /***
     * return the number of opened database for a specified window
     * @param window
     * @return
     */
    static public int getNumberOfDatabases(IWorkbenchWindow window) {
        ViewerWindow vw = ViewerWindowManager.getViewerWindow(window);
        if (vw != null) {
            return vw.getOpenDatabases();
        }
        return 0;
    }

    static public ViewerWindow getViewerWindow(IWorkbenchWindow window) {
        for (int i=0 ; i<vWindows.size() ; i++) {
            if (vWindows.get(i) == null) {
                continue;
            }
            if (window.equals(vWindows.get(i).getWinObj())) {
                return vWindows.get(i);
            }
        }

        MessageDialog.openError(window.getShell(), 
            "Error: Current Window Unknown.", 
            "Unable to find hpcviewer window associated with " + window.toString());
        return null;
    }
    
    static public int size() {
        return vWindows.size();
    }
    
    static public ViewerWindow getViewerWindow(int index) {
        return vWindows.get(index);
    }
}