Java JTable Screenshot createTableScreenshot(Component component)

Here you can find the source of createTableScreenshot(Component component)

Description

create Table Screenshot

License

Open Source License

Declaration

private static BufferedImage createTableScreenshot(Component component) 

Method Source Code

//package com.java2s;
/*/*  w w w  . j  av  a 2s. c  o m*/
 Copyright 2008-2010 Gephi
 Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
 Website : http://www.gephi.org

 This file is part of Gephi.

 DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 Copyright 2011 Gephi Consortium. All rights reserved.

 The contents of this file are subject to the terms of either the GNU
 General Public License Version 3 only ("GPL") or the Common
 Development and Distribution License("CDDL") (collectively, the
 "License"). You may not use this file except in compliance with the
 License. You can obtain a copy of the License at
 http://gephi.org/about/legal/license-notice/
 or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
 specific language governing permissions and limitations under the
 License.  When distributing the software, include this License Header
 Notice in each file and include the License files at
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 License Header, with the fields enclosed by brackets [] replaced by
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 "[Contributor] elects to include this software in this distribution
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 Contributor(s):

 Portions Copyrighted 2011 Gephi Consortium.
 */

import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;

import java.awt.image.BufferedImage;

import javax.swing.JTable;

import javax.swing.JViewport;
import javax.swing.SwingUtilities;

import javax.swing.table.JTableHeader;

public class Main {
    private static BufferedImage createTableScreenshot(Component component) {
        Component source;
        Dimension sourceSize;
        JTable table;

        if (component instanceof JTable) {
            table = (JTable) component;

            if ((table.getTableHeader() == null)
                    || !table.getTableHeader().isVisible()) {
                return createGeneralComponentScreenshot(component);
            }

            source = table;
            sourceSize = table.getSize();
        } else if (component instanceof JViewport
                && ((JViewport) component).getView() instanceof JTable) {
            JViewport viewport = (JViewport) component;
            table = (JTable) viewport.getView();

            if ((table.getTableHeader() == null)
                    || !table.getTableHeader().isVisible()) {
                return createGeneralComponentScreenshot(component);
            }

            if (table.getSize().height > viewport.getSize().height) {
                source = viewport;
                sourceSize = viewport.getSize();
            } else {
                source = table;
                sourceSize = table.getSize();
            }
        } else {
            throw new IllegalArgumentException(
                    "Component can only be JTable or JViewport holding JTable"); // NOI18N
        }

        final JTableHeader tableHeader = table.getTableHeader();
        Dimension tableHeaderSize = tableHeader.getSize();

        BufferedImage tableScreenshot = new BufferedImage(sourceSize.width,
                tableHeaderSize.height + sourceSize.height,
                BufferedImage.TYPE_INT_RGB);
        final Graphics tableScreenshotGraphics = tableScreenshot
                .getGraphics();

        // Component.printAll has to run in AWT Thread to print component contents correctly
        if (SwingUtilities.isEventDispatchThread()) {
            tableHeader.printAll(tableScreenshotGraphics);
        } else {
            try {
                SwingUtilities.invokeAndWait(new Runnable() {

                    @Override
                    public void run() {
                        tableHeader.printAll(tableScreenshotGraphics);
                    }
                });
            } catch (Exception e) {
            }
        }

        tableScreenshotGraphics.translate(0, tableHeaderSize.height);

        final Component printSrc = source;

        // Component.printAll has to run in AWT Thread to print component contents correctly
        if (SwingUtilities.isEventDispatchThread()) {
            printSrc.printAll(tableScreenshotGraphics);
        } else {
            try {
                SwingUtilities.invokeAndWait(new Runnable() {

                    @Override
                    public void run() {
                        printSrc.printAll(tableScreenshotGraphics);
                    }
                });
            } catch (Exception e) {
            }
        }

        return tableScreenshot;
    }

    private static BufferedImage createGeneralComponentScreenshot(
            Component component) {
        Component source;
        Dimension sourceSize;

        if (component instanceof JViewport) {
            JViewport viewport = (JViewport) component;
            Component contents = viewport.getView();

            if (contents.getSize().height > viewport.getSize().height) {
                source = component;
                sourceSize = component.getSize();
            } else {
                source = contents;
                sourceSize = contents.getSize();
            }
        } else {
            source = component;
            sourceSize = component.getSize();
        }

        BufferedImage componentScreenshot = new BufferedImage(
                sourceSize.width, sourceSize.height,
                BufferedImage.TYPE_INT_RGB);
        Graphics componentScreenshotGraphics = componentScreenshot
                .getGraphics();
        source.printAll(componentScreenshotGraphics);

        return componentScreenshot;
    }
}

Related

  1. createTableScreenshot(Component component)
  2. createTableScreenshot(Component component)