Implemented ComponentList rendering and integration of message list

src/main/java/envoy/client/ui/ChatWindow.java

@@ -12,7 +12,6 @@ import javax.swing.border.EmptyBorder;
 import envoy.client.*;
 import envoy.client.event.ThemeChangeEvent;
 import envoy.client.ui.list.ComponentList;
-import envoy.client.ui.list.ComponentListModel;
 import envoy.client.ui.settings.SettingsScreen;
 import envoy.client.util.EnvoyLog;
 import envoy.data.Message;
@@ -32,27 +31,29 @@ import envoy.event.EventBus;
  */
 public class ChatWindow extends JFrame {
 
-	private static final long serialVersionUID = 6865098428255463649L;
-
 	// User specific objects
 	private Client	client;
 	private LocalDB	localDB;
 
 	// GUI components
-	private JPanel				contentPane				= new JPanel();
+	private JPanel					contentPane				= new JPanel();
-	private PrimaryTextArea		messageEnterTextArea	= new PrimaryTextArea(space);
+	private PrimaryTextArea			messageEnterTextArea	= new PrimaryTextArea(space);
-	private JList<User>			userList				= new JList<>();
+	private JList<User>				userList				= new JList<>();
-	private Chat				currentChat;
+	private Chat					currentChat;
-	private ComponentList<Message>	messageList;
+	private ComponentList<Message>	messageList				= new ComponentList<>(new MessageListRenderer());
-	private PrimaryScrollPane	scrollPane				= new PrimaryScrollPane();
+	private PrimaryScrollPane		scrollPane				= new PrimaryScrollPane();
-	private JTextPane			textPane				= new JTextPane();
+	private JTextPane				textPane				= new JTextPane();
-	private PrimaryButton		postButton				= new PrimaryButton("Post");
+	private PrimaryButton			postButton				= new PrimaryButton("Post");
-	private PrimaryButton		settingsButton			= new PrimaryButton("Settings");
+	private PrimaryButton			settingsButton			= new PrimaryButton("Settings");
-
-	private static int space = 4;
 
 	private static final Logger logger = EnvoyLog.getLogger(ChatWindow.class.getSimpleName());
 
+	// GUI component spacing
+	private final static int	space	= 4;
+	private static final Insets	insets	= new Insets(space, space, space, space);
+
+	private static final long serialVersionUID = 6865098428255463649L;
+
 	/**
 	 * Initializes a {@link JFrame} with UI elements used to send and read messages
 	 * to different users.
@@ -75,7 +76,6 @@ public class ChatWindow extends JFrame {
 		gbl_contentPane.rowWeights		= new double[] { 0.05, 1.0, 0.07 };
 		contentPane.setLayout(gbl_contentPane);
 
-		messageList = new ComponentList<>(new ComponentListModel<>(), new MessageListRenderer());
 		// TODO: messageList.setFocusTraversalKeysEnabled(false);
 		// messageList.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
 
@@ -91,7 +91,7 @@ public class ChatWindow extends JFrame {
 		gbc_scrollPane.gridx		= 1;
 		gbc_scrollPane.gridy		= 1;
 
-		gbc_scrollPane.insets = new Insets(space, space, space, space);
+		gbc_scrollPane.insets = insets;
 		contentPane.add(scrollPane, gbc_scrollPane);
 
 		// Message enter field
@@ -100,7 +100,7 @@ public class ChatWindow extends JFrame {
 			@Override
 			public void keyReleased(KeyEvent e) {
 				if (e.getKeyCode() == KeyEvent.VK_ENTER
-						&& ((Settings.getInstance().isEnterToSend() && e.getModifiersEx() == 0) || (e.getModifiersEx() == KeyEvent.CTRL_DOWN_MASK)))
+						&& (Settings.getInstance().isEnterToSend() && e.getModifiersEx() == 0 || e.getModifiersEx() == KeyEvent.CTRL_DOWN_MASK))
 					postMessage();
 			}
 		});
@@ -110,7 +110,7 @@ public class ChatWindow extends JFrame {
 		gbc_messageEnterTextfield.gridx	= 1;
 		gbc_messageEnterTextfield.gridy	= 2;
 
-		gbc_messageEnterTextfield.insets = new Insets(space, space, space, space);
+		gbc_messageEnterTextfield.insets = insets;
 
 		contentPane.add(messageEnterTextArea, gbc_messageEnterTextfield);
 
@@ -121,7 +121,7 @@ public class ChatWindow extends JFrame {
 		gbc_moveSelectionPostButton.gridx	= 2;
 		gbc_moveSelectionPostButton.gridy	= 2;
 
-		gbc_moveSelectionPostButton.insets = new Insets(space, space, space, space);
+		gbc_moveSelectionPostButton.insets = insets;
 
 		postButton.addActionListener((evt) -> { postMessage(); });
 		contentPane.add(postButton, gbc_moveSelectionPostButton);
@@ -133,7 +133,7 @@ public class ChatWindow extends JFrame {
 		gbc_moveSelectionSettingsButton.gridx	= 2;
 		gbc_moveSelectionSettingsButton.gridy	= 0;
 
-		gbc_moveSelectionSettingsButton.insets = new Insets(space, space, space, space);
+		gbc_moveSelectionSettingsButton.insets = insets;
 
 		settingsButton.addActionListener((evt) -> {
 			try {
@@ -154,7 +154,7 @@ public class ChatWindow extends JFrame {
 		gbc_partnerName.gridx	= 1;
 		gbc_partnerName.gridy	= 0;
 
-		gbc_partnerName.insets = new Insets(space, space, space, space);
+		gbc_partnerName.insets = insets;
 		contentPane.add(textPane, gbc_partnerName);
 
 		userList.setCellRenderer(new UserListRenderer());
@@ -187,7 +187,7 @@ public class ChatWindow extends JFrame {
 		gbc_userList.gridx	= 0;
 		gbc_userList.gridy	= 1;
 		gbc_userList.anchor	= GridBagConstraints.PAGE_START;
-		gbc_userList.insets	= new Insets(space, space, space, space);
+		gbc_userList.insets	= insets;
 
 		applyTheme(Settings.getInstance().getThemes().get(Settings.getInstance().getCurrentTheme()));
 
@@ -252,15 +252,18 @@ public class ChatWindow extends JFrame {
 				.build();
 
 			// Send message
+			// TODO: Store offline messages
 			client.sendMessage(message);
 
 			// Add message to LocalDB and update UI
 			currentChat.appendMessage(message);
-			messageList.setModel(currentChat.getModel());
+			// messageList.setModel(currentChat.getModel());
 
 			// Clear text field
 			messageEnterTextArea.setText("");
-			contentPane.revalidate();
+
+			revalidate();
+			repaint();
 		} catch (Exception e) {
 			JOptionPane.showMessageDialog(this,
 					"An exception occured while sending a message. See the log for more details.",

src/main/java/envoy/client/ui/MessageListRenderer.java

@@ -1,9 +1,10 @@
 package envoy.client.ui;
 
-import java.awt.Component;
 import java.text.SimpleDateFormat;
 
+import javax.swing.JComponent;
 import javax.swing.JLabel;
+import javax.swing.border.EmptyBorder;
 
 import envoy.client.Settings;
 import envoy.client.ui.list.ComponentList;
@@ -21,23 +22,22 @@ import envoy.data.Message;
  * @author Maximilian Käfer
  * @since Envoy v0.1-alpha
  */
-public class MessageListRenderer extends JLabel implements ComponentListCellRenderer<Message> {
+public class MessageListRenderer implements ComponentListCellRenderer<Message> {
-
-	private static final long serialVersionUID = 5164417379767181198L;
 
 	@Override
-	public Component getListCellComponent(ComponentList<? extends Message> list, Message value, boolean isSelected) {
+	public JComponent getListCellComponent(ComponentList<? extends Message> list, Message value, boolean isSelected) {
+		final JLabel label = new JLabel();
 		if (isSelected) {
-			setBackground(Color.DARK_GRAY);
+			label.setBackground(Color.DARK_GRAY);
-			setForeground(Color.RED);
+			label.setForeground(Color.RED);
-//			setBackground(list.getSelectionBackground());
+			// setBackground(list.getSelectionBackground());
-//			setForeground(list.getSelectionForeground());
+			// setForeground(list.getSelectionForeground());
 		} else {
-			setBackground(list.getBackground());
+			label.setBackground(list.getBackground());
-			setForeground(list.getForeground());
+			label.setForeground(list.getForeground());
 		}
 
-		setOpaque(true);
+		label.setOpaque(true);
 
 		// TODO: Handle message attachments
 
@@ -51,12 +51,16 @@ public class MessageListRenderer extends JLabel implements ComponentListCellRend
 		// Getting the DateColor in the Chat of the current theme
 		String dateColor = Settings.getInstance().getThemes().get(Settings.getInstance().getCurrentTheme()).getDateColorChat().toHex();
 
-		setText(String.format("<html><p style=\"color:%s\"><b><small>%s</b></small><br><p style=\"color:%s\">%s :%s</html>",
+		label.setText(String.format("<html><p style=\"color:%s\"><b><small>%s</b></small><br><p style=\"color:%s\">%s :%s</html>",
 				dateColor,
 				date,
 				textColor,
 				text,
 				state));
-		return this;
+
+		// Define some space to the components above and below
+		label.setBorder(new EmptyBorder(0, 0, 15, 0));
+
+		return label;
 	}
 }

src/main/java/envoy/client/ui/list/ComponentList.java

@@ -7,28 +7,34 @@ import javax.swing.JPanel;
  * Project: <strong>envoy-client</strong><br>
  * File: <strong>ComponentList.java</strong><br>
  * Created: <strong>25.01.2020</strong><br>
- * 
+ *
  * @author Kai S. K. Engelbart
  * @since Envoy v0.3-alpha
  */
 public class ComponentList<E> extends JPanel {
 
 	private ComponentListModel<E>			model;
-	private ComponentListCellRenderer<E> renderer;
+	private ComponentListCellRenderer<E>	renderer;
 
 	private static final long serialVersionUID = 1759644503942876737L;
 
-	public ComponentList(ComponentListModel<E> model, ComponentListCellRenderer<E> renderer) {
+	public ComponentList(ComponentListCellRenderer<E> renderer) {
 		setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
-		this.model		= model;
+		this.renderer = renderer;
-		this.renderer	= renderer;
+	}
+
+	public ComponentList(ComponentListModel<E> model, ComponentListCellRenderer<E> renderer) {
+		this(renderer);
+		this.model = model;
 		setModel(model);
 	}
 
 	public void setModel(ComponentListModel<E> model) {
 		// Remove old model
-		this.model.clear();
+		if (this.model != null) {
-		this.model.setComponentList(null);
+			this.model.clear();
+			this.model.setComponentList(null);
+		}
 
 		// Synchronize with new model
 		this.model = model;
@@ -40,9 +46,10 @@ public class ComponentList<E> extends JPanel {
 		add(renderer.getListCellComponent(this, elem, false));
 	}
 
-	private void synchronizeModel() {
+	void synchronizeModel() {
 		removeAll();
-		for (E elem : model)
+		if (model != null)
-			add(renderer.getListCellComponent(this, elem, false));
+			for (E elem : model)
+				add(renderer.getListCellComponent(this, elem, false));
 	}
 }

src/main/java/envoy/client/ui/list/ComponentListCellRenderer.java

@@ -1,16 +1,16 @@
 package envoy.client.ui.list;
 
-import java.awt.Component;
+import javax.swing.JComponent;
 
 /**
  * Project: <strong>envoy-client</strong><br>
  * File: <strong>ComponentListCellRenderer.java</strong><br>
  * Created: <strong>25.01.2020</strong><br>
- * 
+ *
  * @author Kai S. K. Engelbart
  * @since Envoy v0.3-alpha
  */
 public interface ComponentListCellRenderer<E> {
 
-	Component getListCellComponent(ComponentList<? extends E> list, E value, boolean isSelected);
+	JComponent getListCellComponent(ComponentList<? extends E> list, E value, boolean isSelected);
 }

src/main/java/envoy/client/ui/list/ComponentListModel.java

@@ -1,5 +1,6 @@
 package envoy.client.ui.list;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
@@ -8,19 +9,21 @@ import java.util.List;
  * Project: <strong>envoy-client</strong><br>
  * File: <strong>ComponentListModel.java</strong><br>
  * Created: <strong>25.01.2020</strong><br>
- * 
+ *
  * @author Kai S. K. Engelbart
  * @since Envoy v0.3-alpha
  */
-public final class ComponentListModel<E> implements Iterable<E> {
+public final class ComponentListModel<E> implements Iterable<E>, Serializable {
 
-	private List<E>				elements	= new ArrayList<>();
+	private List<E>						elements	= new ArrayList<>();
-	private ComponentList<E>	componentList;
+	transient private ComponentList<E>	componentList;
+
+	private static final long serialVersionUID = 4815005915255497331L;
 
 	/**
 	 * Adds an element to this model and notifies the associated
 	 * {@link ComponentList} to add the corresponding component.
-	 * 
+	 *
 	 * @param e the element to add
 	 * @return {@code true}
 	 * @see java.util.List#add(java.lang.Object)
@@ -33,7 +36,7 @@ public final class ComponentListModel<E> implements Iterable<E> {
 	/**
 	 * Removes all elements from this model and clears the associated
 	 * {@link ComponentList}.
-	 * 
+	 *
 	 * @see java.util.List#clear()
 	 * @since Envoy v0.3-alpha
 	 */
@@ -52,7 +55,7 @@ public final class ComponentListModel<E> implements Iterable<E> {
 	/**
 	 * Removes the element at a specific index from this model and the corresponding
 	 * component from the {@link ComponentList}.
-	 * 
+	 *
 	 * @param index
 	 * @return the removed element
 	 * @see java.util.List#remove(int)
@@ -66,6 +69,7 @@ public final class ComponentListModel<E> implements Iterable<E> {
 	 * @return
 	 * @see java.util.List#iterator()
 	 */
+	@Override
 	public Iterator<E> iterator() {
 		return new Iterator<E>() {
 
@@ -81,6 +85,6 @@ public final class ComponentListModel<E> implements Iterable<E> {
 
 	void setComponentList(ComponentList<E> componentList) {
 		this.componentList = componentList;
-		if (componentList != null) elements.forEach(componentList::add);
+		if (componentList != null) componentList.synchronizeModel();
 	}
 }