com.xored.glance.internal.ui.panels.SearchDialog.java Source code

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Here is the source code for com.xored.glance.internal.ui.panels.SearchDialog.java

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/*******************************************************************************
 * Copyright (c) 2008 xored software, Inc. 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:
 * xored software, Inc. - initial API and Implementation (Yuri Strot)
 *******************************************************************************/
package com.xored.glance.internal.ui.panels;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.PopupDialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
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;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Yuri Strot
 */
public class SearchDialog extends PopupDialog {

    private Composite titleArea;

    protected Text titleText;

    private Font infoFont;

    private Label info;

    private Label progress;

    private Control separator;

    private static final GridDataFactory LAYOUTDATA_GRAB_BOTH = GridDataFactory.fillDefaults().grab(true, true);

    private static final GridLayoutFactory POPUP_LAYOUT_FACTORY = GridLayoutFactory.fillDefaults()
            .margins(POPUP_MARGINWIDTH, POPUP_MARGINHEIGHT).spacing(POPUP_HORIZONTALSPACING, POPUP_VERTICALSPACING);

    protected static final String HELP_TEXT = "Enter search text";

    public SearchDialog(final Shell parent) {
        super(parent, SWT.RESIZE, true, false, false, true, false, null, null);
    }

    protected void applyBackgroundColor(final Color color) {
        applyBackgroundColor(color, titleArea);
    }

    protected void applyColors(final Composite composite) {
        applyForegroundColor(getForeground(), composite);
        applyBackgroundColor(getBackground(), composite);
    }

    protected void applyFonts(final Composite composite) {
        Dialog.applyDialogFont(composite);

        if (info != null) {
            final Font font = info.getFont();
            final FontData[] fontDatas = font.getFontData();
            for (int i = 0; i < fontDatas.length; i++) {
                fontDatas[i].setHeight(fontDatas[i].getHeight() * 9 / 10);
            }
            infoFont = new Font(info.getDisplay(), fontDatas);
            info.setFont(infoFont);
        }
    }

    @Override
    protected void configureShell(final Shell shell) {
        super.configureShell(shell);
        shell.addDisposeListener(new DisposeListener() {
            @Override
            public void widgetDisposed(final DisposeEvent e) {
                handleClose();
            }
        });
    }

    @Override
    protected Control createContents(final Composite parent) {
        final Composite composite = new Composite(parent, SWT.NONE);
        POPUP_LAYOUT_FACTORY.applyTo(composite);
        LAYOUTDATA_GRAB_BOTH.applyTo(composite);

        titleArea = (Composite) createTitleMenuArea(composite);
        separator = createHorizontalSeparator(composite);
        createInfoTextArea(composite);

        applyColors(composite);
        applyFonts(composite);
        return composite;
    }

    @Override
    protected Control createInfoTextArea(final Composite parent) {
        final Composite composite = new Composite(parent, SWT.NONE);
        final GridLayout layout = new GridLayout(3, false);
        layout.horizontalSpacing = 0;
        layout.verticalSpacing = 0;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        composite.setLayout(layout);
        composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        progress = new Label(composite, SWT.LEFT);
        // Status label
        info = new Label(composite, SWT.RIGHT);

        info.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        progress.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        // factory.applyTo(info);
        // factory.applyTo(progress);
        final Color color = parent.getDisplay().getSystemColor(SWT.COLOR_WIDGET_DARK_SHADOW);
        info.setForeground(color);
        progress.setForeground(color);
        info.setText(HELP_TEXT);
        return composite;
    }

    @Override
    protected List<Control> getBackgroundColorExclusions() {
        final List<Control> list = copyControls(super.getBackgroundColorExclusions());
        if (separator != null) {
            list.add(separator);
        }
        return list;
    }

    @Override
    protected List<Control> getForegroundColorExclusions() {
        final List<Control> list = copyControls(super.getForegroundColorExclusions());
        if (info != null) {
            list.add(info);
        }
        if (separator != null) {
            list.add(separator);
        }
        return list;
    }

    protected void handleClose() {
        if (infoFont != null && !infoFont.isDisposed()) {
            infoFont.dispose();
        }
        infoFont = null;
    }

    @Override
    protected void setInfoText(final String text) {
        info.setText(text);
    }

    private List<Control> copyControls(List<?> list) {
        List<Control> result = new ArrayList<Control>(list.size());
        for (Control control : result) {
            result.add(control);
        }
        return result;
    }

    /**
     * Create a horizontal separator for the given parent.
     * 
     * @param parent The parent composite.
     * @return The Control representing the horizontal separator.
     */
    private Control createHorizontalSeparator(final Composite parent) {
        final Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL | SWT.LINE_DOT);
        GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).applyTo(separator);
        return separator;
    }

}