Added ability to edit read/write filenames by hand.

mainwindow.cpp

@@ -189,7 +189,7 @@ void MainWindow::on_writeToSIMMButton_clicked()
 void MainWindow::on_chosenWriteFile_textEdited(const QString &newText)
 {
     QFileInfo fi(newText);
-    if (fi.exists() && fi.isFile())
+    if (!newText.isEmpty() && fi.exists() && fi.isFile())
     {
         ui->writeToSIMMButton->setEnabled(true);
         writeFileValid = true;
@@ -201,6 +201,21 @@ void MainWindow::on_chosenWriteFile_textEdited(const QString &newText)
     }
 }
 
+void MainWindow::on_chosenReadFile_textEdited(const QString &newText)
+{
+    QFileInfo fi(newText);
+    if (!newText.isEmpty() && fi.dir().exists())
+    {
+        ui->readFromSIMMButton->setEnabled(true);
+        readFileValid = true;
+    }
+    else
+    {
+        ui->readFromSIMMButton->setEnabled(false);
+        readFileValid = false;
+    }
+}
+
 void MainWindow::programmerWriteStatusChanged(WriteStatus newStatus)
 {
     switch (newStatus)

mainwindow.h

@@ -46,6 +46,7 @@ private slots:
     void on_readFromSIMMButton_clicked();
 
     void on_chosenWriteFile_textEdited(const QString &newText);
+    void on_chosenReadFile_textEdited(const QString &newText);
 
     void programmerWriteStatusChanged(WriteStatus newStatus);
     void programmerWriteTotalLengthChanged(uint32_t totalLen);

mainwindow.ui

@@ -66,7 +66,7 @@
              <item>
               <widget class="QLineEdit" name="chosenWriteFile">
                <property name="readOnly">
-                <bool>true</bool>
+                <bool>false</bool>
                </property>
               </widget>
              </item>
@@ -127,7 +127,7 @@
              <item>
               <widget class="QLineEdit" name="chosenReadFile">
                <property name="readOnly">
-                <bool>true</bool>
+                <bool>false</bool>
                </property>
               </widget>
              </item>