TwitterManager.java

package org.chartsy.main.managers;

import com.harrison.lee.twitpic4j.TwitPic;
import com.harrison.lee.twitpic4j.TwitPicResponse;
import com.harrison.lee.twitpic4j.exception.TwitPicException;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.io.File;
import java.io.IOException;
import java.util.prefs.Preferences;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.border.TitledBorder;
import org.chartsy.chatsy.chat.util.log.NotifyUtil;
import org.chartsy.main.ChartFrame;
import org.chartsy.main.utils.ImageExporter;
import org.netbeans.api.progress.ProgressHandle;
import org.netbeans.api.progress.ProgressHandleFactory;
import org.openide.util.NbPreferences;
import org.openide.windows.WindowManager;

/**
 *
 * @author Viorel
 */
public final class TwitterManager
{

    private static TwitterManager instance;

    private static String API_KEY = "bee72a07687b449aedf8c9f9d93d17fb";

    private String user = "";
    private String pass = "";

    private TwitPic twitPic;

    private PhotoCaptionPanel captionPanel;

    public static TwitterManager getDefault()
    {
        if (instance == null) {
            instance = new TwitterManager();
        }
        return instance;
    }

    private TwitterManager()
    {
        Preferences pref = NbPreferences.forModule(FacebookManager.class);
        user = pref.get("twitter_user", "");
        pass = pref.get("twitter_pass", "");
    }

    public void publishChart(final ChartFrame chartFrame, final String caption)
    {
        if (user.isEmpty() || pass.isEmpty()) {
            NotifyUtil.warn("Acount Data", "You need to specify and account username and password.", false);
            return;
        }
        
        final ProgressHandle handle = ProgressHandleFactory.createHandle("Uploading chart image to wall ...");

        final Runnable task = new Runnable()
        {
            @Override
            public void run()
            {
                handle.start();
                handle.switchToIndeterminate();

                if (twitPic == null) {
                    twitPic = new TwitPic(user, pass);
                }

                TwitPicResponse response = null;

                try {
                    File file = ImageExporter.getDefault().getExportedFile(chartFrame, getClass());
                    if (caption != null && !caption.isEmpty()) {
                        String text = caption;
                        text += "\n\n";
                        text += "Image generated by @chartsyorg. http://www.chartsy.org.";
                        response = twitPic.uploadAndPost(file, text);
                    } else {
                        String text = "Image generated by @chartsyorg. http://www.chartsy.org.";
                        response = twitPic.uploadAndPost(file, text);
                    }
                } catch (TwitPicException tpex) {
                    NotifyUtil.error("Upload Error", tpex.getMessage(), tpex, false);
                } catch (IOException ioex) {
                    NotifyUtil.error("Upload Error", ioex.getMessage(), ioex, false);
                }

                if (response != null) {
                    NotifyUtil.info("Upload Done", "File uploaded successfully.", false);
                }

                handle.finish();
            }
        };

        WindowManager.getDefault().invokeWhenUIReady(task);
    }

    public PhotoCaptionPanel getPhotoCaptionPanel()
    {
        if (captionPanel == null)
        {
            captionPanel = new PhotoCaptionPanel();
        }
        captionPanel.reset();
        return captionPanel;
    }

    public String getPhotoCaption()
    {
        if (captionPanel == null)
        {
            captionPanel = new PhotoCaptionPanel();
            return "";
        }
        return captionPanel.getCaption();
    }

    public class PhotoCaptionPanel extends JPanel
    {

        private JLabel captionLbl;
        private JTextPane captionTxt;
        private JScrollPane captionSp;

        public PhotoCaptionPanel()
        {
            super(new GridBagLayout());

            setBorder(new TitledBorder("Photo Caption:"));

            GridBagConstraints lastConstraints = new GridBagConstraints();
            lastConstraints.fill = GridBagConstraints.HORIZONTAL;
            lastConstraints.anchor = GridBagConstraints.NORTHWEST;
            lastConstraints.weightx = 1.0;
            lastConstraints.gridwidth = GridBagConstraints.REMAINDER;
            lastConstraints.insets = new Insets(5, 5, 5, 5);

            GridBagConstraints labelConstraints = (GridBagConstraints) lastConstraints.clone();
            labelConstraints.weightx = 0.0;
            labelConstraints.gridwidth = 1;

            captionLbl = new JLabel("Caption:");
            add(captionLbl, labelConstraints);

            captionTxt = new JTextPane();
            captionTxt.setPreferredSize(new Dimension(300, 200));

            captionSp = new JScrollPane(captionTxt, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
            add(captionSp, lastConstraints);
        }

        public void reset()
        {
            captionTxt.setText("");
        }

        public String getCaption()
        {
            return captionTxt.getText();
        }

    }

}