net.sourceforge.eclipsetrader.internal.ui.dialogs.CreateSecurityGroupDialog.java Source code

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Here is the source code for net.sourceforge.eclipsetrader.internal.ui.dialogs.CreateSecurityGroupDialog.java

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/*
 * Copyright (c) 2004-2007 Marco Maccaferri and others.
 * 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:
 *     Marco Maccaferri - initial API and implementation
 */

package net.sourceforge.eclipsetrader.internal.ui.dialogs;

import java.util.Iterator;

import net.sourceforge.eclipsetrader.core.CorePlugin;
import net.sourceforge.eclipsetrader.core.db.Security;
import net.sourceforge.eclipsetrader.core.db.SecurityGroup;
import net.sourceforge.eclipsetrader.internal.ui.views.explorer.FlatContentProvider;
import net.sourceforge.eclipsetrader.internal.ui.views.explorer.FlatInstrumentsInput;
import net.sourceforge.eclipsetrader.internal.ui.views.explorer.FlatLabelProvider;
import net.sourceforge.eclipsetrader.internal.ui.views.explorer.InstrumentsViewerComparator;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class CreateSecurityGroupDialog extends TitleAreaDialog {
    private TableViewer viewer;
    private Text groupName;

    public CreateSecurityGroupDialog(Shell parentShell) {
        super(parentShell);
    }

    /* (non-Javadoc)
      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
      */
    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(Messages.CreateSecurityGroupDialog_ShellTitle);
    }

    /* (non-Javadoc)
      * @see org.eclipse.jface.dialogs.TitleAreaDialog#createDialogArea(org.eclipse.swt.widgets.Composite)
      */
    @Override
    protected Control createDialogArea(Composite parent) {
        setTitle(Messages.CreateSecurityGroupDialog_DialogTitle);
        setMessage(Messages.CreateSecurityGroupDialog_Description);

        parent = new Composite(parent, SWT.NONE);
        parent.setLayout(new GridLayout(2, false));
        parent.setLayoutData(new GridData(GridData.FILL_BOTH));

        Label label = new Label(parent, SWT.NONE);
        label.setText(Messages.CreateSecurityGroupDialog_SelectParentGroup);
        label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1));

        viewer = new TableViewer(parent, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
        ((GridData) viewer.getControl().getLayoutData()).heightHint = 250;
        viewer.setContentProvider(new FlatContentProvider());
        viewer.addFilter(new ViewerFilter() {
            @Override
            public boolean select(Viewer viewer, Object parentElement, Object element) {
                return !(element instanceof Security);
            }
        });
        viewer.setLabelProvider(new DecoratingLabelProvider(new FlatLabelProvider(), null));
        viewer.setComparator(new InstrumentsViewerComparator());

        viewer.setInput(new FlatInstrumentsInput());

        label = new Label(parent, SWT.NONE);
        label.setText(Messages.CreateSecurityGroupDialog_GroupName);
        groupName = new Text(parent, SWT.BORDER);
        groupName.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        groupName.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                getButton(IDialogConstants.OK_ID).setEnabled(isValid());
            }
        });
        groupName.setFocus();

        Label separator = new Label(parent, SWT.HORIZONTAL | SWT.SEPARATOR);
        separator.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1));

        return parent;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.TrayDialog#createButtonBar(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createButtonBar(Composite parent) {
        Control control = super.createButtonBar(parent);
        getButton(IDialogConstants.OK_ID).setEnabled(false);
        return control;
    }

    /* (non-Javadoc)
      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
      */
    @Override
    protected void okPressed() {
        SecurityGroup group = new SecurityGroup();
        group.setDescription(groupName.getText());

        IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
        if (!selection.isEmpty()) {
            SecurityGroup parentGroup = (SecurityGroup) selection.getFirstElement();
            group.setParentGroup(parentGroup);
        }

        CorePlugin.getRepository().save(group);

        super.okPressed();
    }

    protected boolean isValid() {
        if (groupName.getText().equals("")) { //$NON-NLS-1$
            setMessage(Messages.CreateSecurityGroupDialog_EmptyNameMessage);
            return false;
        }
        if (isExistingFolder(groupName.getText())) {
            setErrorMessage(Messages.CreateSecurityGroupDialog_ExistingNameMessage);
            return false;
        }
        setErrorMessage(null);
        return true;
    }

    protected boolean isExistingFolder(String name) {
        for (Iterator<SecurityGroup> iter = CorePlugin.getRepository().allSecurityGroups().iterator(); iter
                .hasNext();) {
            SecurityGroup g = iter.next();
            if (g.getDescription().equals(name))
                return true;
        }
        return false;
    }
}