Progress!

Masked error caused by saving dbc while editor is open that causes
msg IDs to go crazy by making editor modal, but that affects all
other windows, so might be a better fix.

Added new value type of VALUE_STRING, probably better named
ENUMERATED_STRING, and it uses the table in the editor to define
the enum.

Fixed a bug in the signal viewer load when a signal is not matched
(I found it by renaming a signal and then loading)

dbc/dbc_classes.cpp

@@ -137,6 +137,17 @@ bool DBC_SIGNAL::processAsText(const CANFrame &frame, QString &outString, bool o
         cachedValue = outString;
         return true;
     }
+    else if(valType == VALUE_STRING)
+    {
+        result = Utility::processIntegerSignal(frame.payload(), startBit, signalSize, intelByteOrder, isSigned);
+
+        if(!getValueString(result, outString))
+        {
+            outString = "Signal string value is undefined";
+        }
+
+        return true;
+    }
 
     if (valType == SIGNED_INT) isSigned = true;
     if (valType == SIGNED_INT || valType == UNSIGNED_INT)
@@ -229,7 +240,7 @@ bool DBC_SIGNAL::processAsInt(const CANFrame &frame, int32_t &outValue)
     int32_t result = 0;
     bool isSigned = false;
 
-    if (valType == STRING || valType == SP_FLOAT  || valType == DP_FLOAT)
+    if (valType == STRING || valType == VALUE_STRING || valType == SP_FLOAT  || valType == DP_FLOAT)
     {
         return false;
     }
@@ -262,7 +273,7 @@ bool DBC_SIGNAL::processAsDouble(const CANFrame &frame, double &outValue)
     bool isSigned = false;
     double endResult;
 
-    if (valType == STRING)
+    if (valType == STRING || valType ==  VALUE_STRING)
     {
         return false;
     }

dbc/dbc_classes.h

@@ -21,7 +21,8 @@ enum DBC_SIG_VAL_TYPE
     SIGNED_INT,
     SP_FLOAT,
     DP_FLOAT,
-    STRING
+    STRING,
+    VALUE_STRING
 };
 
 enum DBC_ATTRIBUTE_VAL_TYPE

dbc/dbchandler.cpp

@@ -576,6 +576,9 @@ DBC_SIGNAL* DBCFile::parseSignalLine(QString line, DBC_MESSAGE *msg)
             sig.valType = DP_FLOAT;
             sig.intelByteOrder = true;
             break;
+        case 7: //double point float in little endian
+            sig.valType = VALUE_STRING;
+            break;
         }
         sig.factor = match.captured(6 + offset).toDouble();
         sig.bias = match.captured(7 + offset).toDouble();
@@ -1443,6 +1446,9 @@ bool DBCFile::saveFile(QString fileName)
             case STRING:
                 msgOutput.append("4-");
                 break;
+            case VALUE_STRING:
+                msgOutput.append("7-");
+                break;
             default:
                 msgOutput.append("0-");
                 break;

dbc/dbcloadsavewindow.cpp

@@ -285,6 +285,7 @@ void DBCLoadSaveWindow::editFile()
     if (idx < 0) return;
 
     editorWindow->setFileIdx(idx);
+    editorWindow->setModal(true);
     editorWindow->show();
 }
 

dbc/dbcsignaleditor.cpp

@@ -34,6 +34,7 @@ DBCSignalEditor::DBCSignalEditor(QWidget *parent) :
     ui->comboType->addItem("SINGLE PRECISION");
     ui->comboType->addItem("DOUBLE PRECISION");
     ui->comboType->addItem("STRING");
+    ui->comboType->addItem("ENUMERATED STRING");
 
     ui->bitfield->setMode(GridMode::SIGNAL_VIEW);
 
@@ -85,6 +86,9 @@ DBCSignalEditor::DBCSignalEditor(QWidget *parent) :
                 case 4:
                     currentSignal->valType = STRING;
                     break;
+                case 5:
+                    currentSignal->valType = VALUE_STRING;
+                    break;
                 }
                 dbcFile->setDirtyFlag();
                 fillSignalForm(currentSignal);
@@ -577,6 +581,9 @@ void DBCSignalEditor::fillSignalForm(DBC_SIGNAL *sig)
     case STRING:
         ui->comboType->setCurrentIndex(4);
         break;
+    case VALUE_STRING:
+        ui->comboType->setCurrentIndex(5);
+        break;
     }
 
     for (int i = 0; i < ui->comboReceiver->count(); i++)

signalviewerwindow.cpp

@@ -286,13 +286,14 @@ void SignalViewerWindow::loadDefinitions(bool append)
                     if (msg  = dbcHandler->findMessage(msgName))
                     {
                         sig = msg->sigHandler->findSignalByName(sigName);
-                        loadedSignals.append(sig);
+                        if(sig)
+                            loadedSignals.append(sig);
                     }
                     else  if(msg = dbcHandler->findMessage(msgId))
                     {
                         sig = msg->sigHandler->findSignalByName(sigName);
-                        //fix anything up about the name?
+                        if(sig)
-                        loadedSignals.append(sig);
+                            loadedSignals.append(sig);
                     }
                     else
                     {