Split TableCellRenderes from TableCellEditors

This rationalization helps to better follow the swing abstractions
of table models and increase separation of concerns.

(WIP: ContributedPlatforms needs a similar refactoring that will be
done in the next commits)

Author: cmaglie

app/src/cc/arduino/contributions/libraries/ui/ContributedLibraryTableCell.java

@@ -0,0 +1,243 @@
+package cc.arduino.contributions.libraries.ui;
+
+import static processing.app.I18n.format;
+import static processing.app.I18n.tr;
+
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Insets;
+
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JComboBox;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JTable;
+import javax.swing.JTextPane;
+import javax.swing.border.EmptyBorder;
+import javax.swing.event.HyperlinkEvent;
+import javax.swing.text.Document;
+import javax.swing.text.html.HTMLDocument;
+import javax.swing.text.html.StyleSheet;
+
+import cc.arduino.contributions.DownloadableContributionVersionComparator;
+import cc.arduino.contributions.libraries.ContributedLibrary;
+import cc.arduino.contributions.ui.InstallerTableCell;
+import processing.app.Base;
+
+public class ContributedLibraryTableCell {
+
+  protected final JPanel panel;
+  protected final JButton installButton;
+  protected final Component installButtonPlaceholder;
+  protected final JComboBox downgradeChooser;
+  protected final JComboBox versionToInstallChooser;
+  protected final JButton downgradeButton;
+  protected final JPanel buttonsPanel;
+  protected final JPanel inactiveButtonsPanel;
+  protected final JLabel statusLabel;
+
+  public ContributedLibraryTableCell() {
+    installButton = new JButton(tr("Install"));
+    int width = installButton.getPreferredSize().width;
+    installButtonPlaceholder = Box.createRigidArea(new Dimension(width, 1));
+
+    downgradeButton = new JButton(tr("Install"));
+
+    downgradeChooser = new JComboBox();
+    downgradeChooser.addItem("-");
+    downgradeChooser.setMaximumSize(downgradeChooser.getPreferredSize());
+    downgradeChooser.addItemListener(e -> {
+      Object selectVersionItem = downgradeChooser.getItemAt(0);
+      boolean disableDowngrade = (e.getItem() == selectVersionItem);
+      downgradeButton.setEnabled(!disableDowngrade);
+    });
+
+    versionToInstallChooser = new JComboBox();
+    versionToInstallChooser.addItem("-");
+    versionToInstallChooser
+        .setMaximumSize(versionToInstallChooser.getPreferredSize());
+
+    panel = new JPanel();
+    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
+
+    makeNewDescription(panel);
+
+    buttonsPanel = new JPanel();
+    buttonsPanel.setLayout(new BoxLayout(buttonsPanel, BoxLayout.X_AXIS));
+    buttonsPanel.setOpaque(false);
+
+    buttonsPanel.add(Box.createHorizontalStrut(7));
+    buttonsPanel.add(downgradeChooser);
+    buttonsPanel.add(Box.createHorizontalStrut(5));
+    buttonsPanel.add(downgradeButton);
+
+    buttonsPanel.add(Box.createHorizontalGlue());
+
+    buttonsPanel.add(versionToInstallChooser);
+    buttonsPanel.add(Box.createHorizontalStrut(5));
+    buttonsPanel.add(installButton);
+    buttonsPanel.add(Box.createHorizontalStrut(5));
+    buttonsPanel.add(Box.createHorizontalStrut(15));
+
+    panel.add(buttonsPanel);
+
+    inactiveButtonsPanel = new JPanel();
+    inactiveButtonsPanel
+        .setLayout(new BoxLayout(inactiveButtonsPanel, BoxLayout.X_AXIS));
+    inactiveButtonsPanel.setOpaque(false);
+
+    int height = installButton.getMinimumSize().height;
+    inactiveButtonsPanel.add(Box.createVerticalStrut(height));
+    inactiveButtonsPanel.add(Box.createGlue());
+
+    statusLabel = new JLabel(" ");
+    inactiveButtonsPanel.add(statusLabel);
+    inactiveButtonsPanel.add(Box.createHorizontalStrut(15));
+
+    panel.add(inactiveButtonsPanel);
+
+    panel.add(Box.createVerticalStrut(15));
+  }
+
+  void update(JTable parentTable, Object value, boolean isSelected,
+                      int row, boolean hasBuiltInRelease) {
+    ContributedLibraryReleases releases = (ContributedLibraryReleases) value;
+
+    JTextPane description = makeNewDescription(panel);
+
+    // FIXME: happens on macosx, don't know why
+    if (releases == null)
+      return;
+
+    ContributedLibrary selected = releases.getSelected();
+    ContributedLibrary installed = releases.getInstalled();
+
+    boolean installable, upgradable;
+    if (installed == null) {
+      installable = true;
+      upgradable = false;
+    } else {
+      installable = false;
+      upgradable = new DownloadableContributionVersionComparator()
+          .compare(selected, installed) > 0;
+    }
+    if (installable) {
+      installButton.setText(tr("Install"));
+    }
+    if (upgradable) {
+      installButton.setText(tr("Update"));
+    }
+    installButton.setVisible(installable || upgradable);
+    installButtonPlaceholder.setVisible(!(installable || upgradable));
+
+    String name = selected.getName();
+    String author = selected.getAuthor();
+    // String maintainer = selectedLib.getMaintainer();
+    String website = selected.getWebsite();
+    String sentence = selected.getSentence();
+    String paragraph = selected.getParagraph();
+    // String availableVer = selectedLib.getVersion();
+    // String url = selected.getUrl();
+
+    String midcolor = isSelected ? "#000000" : "#888888";
+
+    String desc = "<html><body>";
+
+    // Library name...
+    desc += format("<b>{0}</b>", name);
+    if (installed != null && installed.isReadOnly()) {
+      desc += " Built-In ";
+    }
+
+    // ...author...
+    desc += format("<font color=\"{0}\">", midcolor);
+    if (author != null && !author.isEmpty()) {
+      desc += format(" by <b>{0}</b>", author);
+    }
+
+    // ...version.
+    if (installed != null) {
+      String installedVer = installed.getParsedVersion();
+      if (installedVer == null) {
+        desc += " " + tr("Version unknown");
+      } else {
+        desc += " " + format(tr("Version <b>{0}</b>"), installedVer);
+      }
+    }
+    desc += "</font>";
+
+    if (installed != null) {
+      desc += " <strong><font color=\"#00979D\">INSTALLED</font></strong>";
+    }
+
+    desc += "<br/>";
+
+    // Description
+    if (sentence != null) {
+      desc += format("<b>{0}</b> ", sentence);
+      if (paragraph != null && !paragraph.isEmpty())
+        desc += format("{0}", paragraph);
+      desc += "<br />";
+    }
+    if (author != null && !author.isEmpty()) {
+      desc += format("<a href=\"{0}\">More info</a>", website);
+    }
+
+    desc += "</body></html>";
+    description.setText(desc);
+    description.setBackground(Color.WHITE);
+
+    // for modelToView to work, the text area has to be sized. It doesn't
+    // matter if it's visible or not.
+
+    // See:
+    // http://stackoverflow.com/questions/3081210/how-to-set-jtextarea-to-have-height-that-matches-the-size-of-a-text-it-contains
+    int width = parentTable.getBounds().width;
+    InstallerTableCell.setJTextPaneDimensionToFitContainedText(description, width);
+
+    if (isSelected) {
+      panel.setBackground(parentTable.getSelectionBackground());
+      panel.setForeground(parentTable.getSelectionForeground());
+    } else {
+      panel.setBackground(parentTable.getBackground());
+      panel.setForeground(parentTable.getForeground());
+    }
+  }
+
+  private static JTextPane makeNewDescription(JPanel panel) {
+    if (panel.getComponentCount() > 0) {
+      panel.remove(0);
+    }
+    JTextPane description = new JTextPane();
+    description.setInheritsPopupMenu(true);
+    Insets margin = description.getMargin();
+    margin.bottom = 0;
+    description.setMargin(margin);
+    description.setContentType("text/html");
+    Document doc = description.getDocument();
+    if (doc instanceof HTMLDocument) {
+      HTMLDocument html = (HTMLDocument) doc;
+      StyleSheet stylesheet = html.getStyleSheet();
+      stylesheet.addRule("body { margin: 0; padding: 0;"
+                         + "font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;"
+                         + "font-size: 100%;" + "font-size: 0.95em; }");
+    }
+    description.setOpaque(false);
+    description.setBorder(new EmptyBorder(4, 7, 7, 7));
+    description.setHighlighter(null);
+    description.setEditable(false);
+    description.addHyperlinkListener(e -> {
+      if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
+        Base.openURL(e.getDescription());
+      }
+    });
+    // description.addKeyListener(new DelegatingKeyListener(parentTable));
+    panel.add(description, 0);
+    return description;
+  }
+
+
+}