set maxLen for Chatmessages

src/Chat/Chat.cpp

@@ -6,8 +6,49 @@
 #include "../DataStore/DataStore.h"
 Chat::Chat() {}
 
-void Chat::renderChatBox(Ui::MainWindow *ui, QListView *view)
+ChatMemoEdit::ChatMemoEdit(QWidget* parent) : QTextEdit(parent) {
+    QObject::connect(this, &QTextEdit::textChanged, this, &ChatMemoEdit::updateDisplay);
+}
+
+void ChatMemoEdit::updateDisplay() {
+    QString txt = this->toPlainText();
+    if (lenDisplayLabel)
+        lenDisplayLabel->setText(QString::number(txt.toUtf8().size()) + "/" + QString::number(maxlen));
+
+    if (txt.toUtf8().size() <= maxlen) {
+        // Everything is fine
+        if (sendChatButton)
+            sendChatButton->setEnabled(true);
+
+        if (lenDisplayLabel)
+            lenDisplayLabel->setStyleSheet("");
+    }
+    else {
+        // Overweight
+        if (sendChatButton)
+            sendChatButton->setEnabled(false);
+
+        if (lenDisplayLabel)
+            lenDisplayLabel->setStyleSheet("color: red;");
+    }
+}
+
+void ChatMemoEdit::setMaxLen(int len) {
+    this->maxlen = len;
+    updateDisplay();
+}
+
+void ChatMemoEdit::SetSendChatButton(QPushButton* button) {
+    this->sendChatButton = button;
+}
+
+void ChatMemoEdit::setLenDisplayLabel(QLabel* label) {
+    this->lenDisplayLabel = label;
+}
+
+void Chat::renderChatBox(Ui::MainWindow *ui, QListView *view, QLabel *label)
 {
+    
     QStandardItemModel *chat = new QStandardItemModel();
     //    ui->lcdNumber->setStyleSheet("background-color: red");
     //    ui->lcdNumber->setPalette(Qt::red);