com.aptana.formatter.ui.preferences.AlreadyExistsDialog.java Source code

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Here is the source code for com.aptana.formatter.ui.preferences.AlreadyExistsDialog.java

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/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *     xored software, Inc. - initial API and Implementation (Yuri Strot)
 *******************************************************************************/
package com.aptana.formatter.ui.preferences;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.StatusDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
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;

import com.aptana.formatter.preferences.profile.IProfile;
import com.aptana.formatter.preferences.profile.IProfileManager;
import com.aptana.formatter.ui.FormatterMessages;
import com.aptana.formatter.ui.util.StatusInfo;

/**
 * The dialog to rename an imported profile.
 */
public class AlreadyExistsDialog extends StatusDialog {

    private Composite fComposite;
    protected Text fNameText;
    private Button fRenameRadio, fOverwriteRadio;

    private final int NUM_COLUMNS = 2;

    private final StatusInfo fOk;
    private final StatusInfo fEmpty;
    private final StatusInfo fDuplicate;

    private final IProfile fProfile;
    private final IProfileManager fProfileManager;
    private final IProject fProject;

    public AlreadyExistsDialog(Shell parentShell, IProfile profile, IProfileManager profileManager,
            IProject fProject) {
        super(parentShell);
        fProfile = profile;
        fProfileManager = profileManager;
        this.fProject = fProject;
        fOk = new StatusInfo();
        fDuplicate = new StatusInfo(IStatus.ERROR, FormatterMessages.AlreadyExistsDialog_nameExists);
        fEmpty = new StatusInfo(IStatus.ERROR, FormatterMessages.AlreadyExistsDialog_nameEmpty);

        setHelpAvailable(false);
    }

    public void create() {
        super.create();
        setTitle(FormatterMessages.AlreadyExistsDialog_loadProfile);
    }

    public Control createDialogArea(Composite parent) {

        initializeComposite(parent);

        createLabel(NLS.bind(FormatterMessages.AlreadyExistsDialog_nameExistsQuestion, fProfile.getName()));

        fRenameRadio = createRadioButton(FormatterMessages.AlreadyExistsDialog_renameProfile);
        fNameText = createTextField();

        fOverwriteRadio = createRadioButton(FormatterMessages.AlreadyExistsDialog_overwriteProfile);

        fRenameRadio.setSelection(true);

        fNameText.setText(fProfile.getName());
        fNameText.setSelection(0, fProfile.getName().length());
        fNameText.setFocus();

        fNameText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                doValidation();
            }
        });

        fRenameRadio.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                fNameText.setEnabled(true);
                fNameText.setFocus();
                fNameText.setSelection(0, fNameText.getText().length());
                doValidation();
            }

            public void widgetDefaultSelected(SelectionEvent e) {
            }
        });

        fOverwriteRadio.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                fNameText.setEnabled(false);
                doValidation();
            }

            public void widgetDefaultSelected(SelectionEvent e) {
            }
        });

        updateStatus(fDuplicate);

        applyDialogFont(fComposite);

        return fComposite;
    }

    private void initializeComposite(Composite parent) {
        fComposite = new Composite(parent, SWT.NULL);

        final GridLayout layout = new GridLayout();
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
        layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
        layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
        layout.numColumns = NUM_COLUMNS;

        fComposite.setLayout(layout);
    }

    private Label createLabel(String text) {
        final GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.horizontalSpan = NUM_COLUMNS;
        gd.widthHint = convertWidthInCharsToPixels(60);
        final Label label = new Label(fComposite, SWT.WRAP);
        label.setText(text);
        label.setLayoutData(gd);
        return label;
    }

    private Button createRadioButton(String text) {
        final GridData gd = new GridData();
        gd.horizontalSpan = NUM_COLUMNS;
        gd.widthHint = convertWidthInCharsToPixels(60);
        final Button radio = new Button(fComposite, SWT.RADIO);
        radio.setLayoutData(gd);
        radio.setText(text);
        return radio;
    }

    private Text createTextField() {
        final GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.horizontalSpan = NUM_COLUMNS;
        gd.horizontalIndent = 15;
        final Text text = new Text(fComposite, SWT.SINGLE | SWT.BORDER);
        text.setLayoutData(gd);
        return text;
    }

    /**
     * Validate the current settings
     */
    protected void doValidation() {

        if (fOverwriteRadio.getSelection()) {
            updateStatus(fOk);
            return;
        }

        final String name = fNameText.getText().trim();

        if (name.length() == 0) {
            updateStatus(fEmpty);
            return;
        }

        if (fProfileManager.containsName(name)) {
            updateStatus(fDuplicate);
            return;
        }

        updateStatus(fOk);
    }

    protected void okPressed() {
        if (!getStatus().isOK())
            return;
        if (fRenameRadio.getSelection())
            fProfileManager.rename(fProject, fProfile, fNameText.getText().trim());
        super.okPressed();
    }
}