zdm/envoy
zdm/envoy
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Added KeyListeners for sending the message and an automatic line break

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This commit is contained in:
delvh 2019-11-05 13:30:23 +01:00
parent 0edd9d998f
commit d9870f9b22
2 changed files with 62 additions and 86 deletions
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134
src/main/java/envoy/client/ui/ChatWindow.java
View File

@ -6,8 +6,7 @@ import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.InputMethodEvent;
import java.awt.event.InputMethodListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
@ -56,7 +55,7 @@ public class ChatWindow extends JFrame {
private JList<User> userList = new JList<>();
private Chat currentChat;
private String messageText;
private JTextArea messageEnterTextArea;
public ChatWindow(Client client, LocalDB localDB) {
this.client = client;
@ -118,38 +117,29 @@ public class ChatWindow extends JFrame {
contentPane.add(scrollPane, gbc_scrollPane);
// Message enter field
JTextArea messageEnterTextfield = new JTextArea();
// checks for changed Message
messageEnterTextfield.addInputMethodListener(new InputMethodListener() {
messageEnterTextArea = new JTextArea();
messageEnterTextArea.addKeyListener(new KeyAdapter() {
public void caretPositionChanged(InputMethodEvent arg0) {}
@Override
public void keyReleased(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ENTER && ((SettingsScreen.enterToSend && e.getModifiersEx() == 0)
|| (e.getModifiersEx() == KeyEvent.CTRL_DOWN_MASK))) {
postMessage(client, messageList);
public void inputMethodTextChanged(InputMethodEvent arg0) {
String message = messageEnterTextfield.getText();
int messageSize = message.length();
int lineSize = 45;
String[] tempString = message.split(System.getProperty("line.separator"));
int currentLineAmount = tempString.length;
int wantedLineAmount = Math.floorDiv(messageSize, lineSize);
if (currentLineAmount != wantedLineAmount) {
if (Math.abs(messageText.length() - messageSize) == 1
&& currentLineAmount == wantedLineAmount - 1) {// Check for "normal" Keystroke/Backspace
messageEnterTextfield.setText(transformLastSpace(message, wantedLineAmount, lineSize));
}
} else {// That's the case if a group of chars was a)inserted or b)deleted
// TODO
}
messageText = message;
}
}
});
messageEnterTextfield.setCaretColor(new Color(255, 255, 255));
messageEnterTextfield.setForeground(new Color(255, 255, 255));
messageEnterTextfield.setBackground(new Color(51, 51, 51));
messageEnterTextfield.setLineWrap(true);
messageEnterTextfield.setBorder(null);
messageEnterTextfield.setFont(new Font("Arial", Font.PLAIN, 17));
messageEnterTextfield.setBorder(new EmptyBorder(5, 5, 5, 5));
// checks for changed Message
messageEnterTextArea.setWrapStyleWord(true);
messageEnterTextArea.setCaretColor(new Color(255, 255, 255));
messageEnterTextArea.setForeground(new Color(255, 255, 255));
messageEnterTextArea.setBackground(new Color(51, 51, 51));
messageEnterTextArea.setLineWrap(true);
messageEnterTextArea.setBorder(null);
messageEnterTextArea.setFont(new Font("Arial", Font.PLAIN, 17));
messageEnterTextArea.setBorder(new EmptyBorder(5, 5, 5, 5));
GridBagConstraints gbc_messageEnterTextfield = new GridBagConstraints();
gbc_messageEnterTextfield.fill = GridBagConstraints.BOTH;
@ -158,13 +148,10 @@ public class ChatWindow extends JFrame {
gbc_messageEnterTextfield.insets = new Insets(10, 10, 10, 10);
contentPane.add(messageEnterTextfield, gbc_messageEnterTextfield);
contentPane.add(messageEnterTextArea, gbc_messageEnterTextfield);
// Post Button
JButton postButton = new JButton("Post");
if (SettingsScreen.isEnterToSend() == true) { postButton.setMnemonic(KeyEvent.VK_ENTER); }
// TODO: Other option to send only on "ctrl"+"enter" needs to be implemented.
// TODO: Difficult. Also above statement doesn't work!
postButton.setForeground(new Color(255, 255, 255));
postButton.setBackground(new Color(102, 51, 153));
postButton.setBorderPainted(false);
@ -177,36 +164,7 @@ public class ChatWindow extends JFrame {
gbc_moveSelectionPostButton.insets = new Insets(10, 10, 10, 10);
postButton.addActionListener((evt) -> {
if (!client.hasRecipient()) {
JOptionPane.showMessageDialog(this,
"Please select a recipient!",
"Cannot send message",
JOptionPane.INFORMATION_MESSAGE);
return;
}
if (!messageEnterTextfield.getText().isEmpty()) try {
// Create and send message object
final Message message = client.createMessage(messageEnterTextfield.getText());
client.sendMessage(message);
// Append message object to chat
currentChat.appendMessage(message);
messageList.setModel(currentChat.getModel());
// Clear text field
messageEnterTextfield.setText("");
contentPane.revalidate();
} catch (Exception e) {
JOptionPane.showMessageDialog(this,
"An exception occured while sending a message. See the log for more details.",
"Exception occured",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
});
postButton.addActionListener((evt) -> { postMessage(client, messageList); });
contentPane.add(postButton, gbc_moveSelectionPostButton);
@ -229,7 +187,7 @@ public class ChatWindow extends JFrame {
SettingsScreen.open(localDB.getUser().getName());
} catch (Exception e) {
SettingsScreen.open();
System.err.println("An Error occured while opening the Settings screen");
System.err.println("An Error occured while opening the Settings screen: " + e);
e.printStackTrace();
}
});
@ -244,7 +202,6 @@ public class ChatWindow extends JFrame {
GridBagConstraints gbc_partnerName = new GridBagConstraints();
gbc_partnerName.fill = GridBagConstraints.HORIZONTAL;
gbc_partnerName.gridwidth = 2;
gbc_partnerName.gridx = 1;
gbc_partnerName.gridy = 0;
@ -298,22 +255,41 @@ public class ChatWindow extends JFrame {
}
/**
* takes care of too long or not needed lines in the message.
* Posts a {@link Message}. Is used only twice: Once for clicking on the {@code postButton}<br>
* and once for pressing the KeyStroke(s) to send a message ( (ctrl+)enter)
*
* @param message the message that is currently written in the textfield
* @param wantedLine the line at which we currently are positioned
* @param lineSize the amount of chars per line
* @return the transformed message
* @param client the client who wants to send a {@link Message}
* @param messageList the chat in which this {@link Message} belongs
* @since Envoy v0.1-alpha
*/
private String transformLastSpace(String message, int wantedLine, int lineSize) {
int index = wantedLine * lineSize;
int lastSpace = message.lastIndexOf(" ", index);
if (index - lastSpace > lineSize) {// Fall Wort länger als Zeile
return message.substring(0, index) + System.getProperty("line.separator") + message.substring(index);
} else {
return message.substring(0, lastSpace - 1) + System.getProperty("line.separator")
+ message.substring(lastSpace + 1);
private void postMessage(Client client, JList<Message> messageList) {
if (!client.hasRecipient()) {
JOptionPane.showMessageDialog(this,
"Please select a recipient!",
"Cannot send message",
JOptionPane.INFORMATION_MESSAGE);
return;
}
if (!messageEnterTextArea.getText().isEmpty()) try {
// Create and send message object
final Message message = client.createMessage(messageEnterTextArea.getText());
client.sendMessage(message);
// Append message object to chat
currentChat.appendMessage(message);
messageList.setModel(currentChat.getModel());
// Clear text field
messageEnterTextArea.setText("");
contentPane.revalidate();
} catch (Exception e) {
JOptionPane.showMessageDialog(this,
"An exception occured while sending a message. See the log for more details.",
"Exception occured",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}

8
src/main/java/envoy/client/ui/SettingsScreen.java
View File

@ -20,7 +20,7 @@ public class SettingsScreen extends JDialog {
private static final long serialVersionUID = -4476913491263077107L;
private final JPanel contentPanel = new JPanel();
public static boolean EnterToSend = true;
public static boolean enterToSend = true;
// TODO: Add a JPanel with all the Information necessary:
// change (Picture,Username, Email, Password) and toggle(light/dark mode,
@ -139,10 +139,10 @@ public class SettingsScreen extends JDialog {
}
/**
* @return true if Enter should be used to send a message
* @return true if Enter should be used to send a message instead of ctrl+enter
* @since Envoy v0.1-alpha
*/
public static boolean isEnterToSend() { return EnterToSend; }
public static boolean isEnterToSend() { return enterToSend; }
/**
* @param enterToSend <br>
@ -151,6 +151,6 @@ public class SettingsScreen extends JDialog {
* buttonpress "enter" or "ctrl"+"enter"
* @since Envoy v0.1-alpha
*/
public static void setEnterToSend(boolean enterToSend) { EnterToSend = enterToSend; }
public static void setEnterToSend(boolean enterForSend) { enterToSend = enterForSend; }
// TODO: Should be changed to private, but later to avoid warnings
}