Implemented the signal viewer and enabled it in the menu.

signalviewerwindow.cpp

@@ -1,14 +1,18 @@
 #include "signalviewerwindow.h"
 #include "ui_signalviewerwindow.h"
 #include "helpwindow.h"
+#include "mainwindow.h"
+#include <QDebug>
 
-SignalViewerWindow::SignalViewerWindow(QWidget *parent) :
+SignalViewerWindow::SignalViewerWindow(const QVector<CANFrame> *frames, QWidget *parent) :
     QDialog(parent),
     ui(new Ui::SignalViewerWindow)
 {
     ui->setupUi(this);
     setWindowFlags(Qt::Window);
 
+    modelFrames = frames;
+
     QStringList headers;
     headers << "Signal" << "Value";
     ui->tableViewer->setHorizontalHeaderLabels(headers);
@@ -21,6 +25,8 @@ SignalViewerWindow::SignalViewerWindow(QWidget *parent) :
 
     connect(ui->cbMessages, SIGNAL(currentIndexChanged(int)), this, SLOT(loadSignals(int)));
     connect(ui->btnAdd, SIGNAL(clicked(bool)), this, SLOT(addSignal()));
+    connect(MainWindow::getReference(), SIGNAL(framesUpdated(int)), this, SLOT(updatedFrames(int)));
+    connect(ui->btnRemove, SIGNAL(clicked(bool)), this, SLOT(removeSelectedSignal()));
 
     loadMessages();
 }
@@ -30,14 +36,79 @@ SignalViewerWindow::~SignalViewerWindow()
     delete ui;
 }
 
+void SignalViewerWindow::updatedFrames(int numFrames)
+{
+    CANFrame thisFrame;
+
+    if (numFrames == -1) //all frames deleted. Don't care
+    {
+    }
+    else if (numFrames == -2) //all new set of frames. Reset
+    {
+        for (int i = 0; i < modelFrames->count(); i++)
+        {
+            thisFrame = modelFrames->at(i);
+            processFrame(thisFrame);
+        }
+    }
+    else //just got some new frames. See if they are relevant.
+    {
+        if (numFrames > modelFrames->count()) return;
+
+        for (int i = modelFrames->count() - numFrames; i < modelFrames->count(); i++)
+        {
+            thisFrame = modelFrames->at(i);
+            processFrame(thisFrame);
+        }
+    }
+}
+
+void SignalViewerWindow::processFrame(CANFrame &frame)
+{
+    QString sigString;
+    DBC_SIGNAL *sig;
+    for (int i = 0; i < signalList.count(); i++)
+    {
+        sig = signalList.at(i);
+        if (!sig) return;
+        if (sig->parentMessage->ID == frame.ID)
+        {
+            if (sig->processAsText(frame, sigString, false)) //if true we could interpret the signal so update it in the list
+            {
+                QTableWidgetItem *item = ui->tableViewer->item(i, 1);
+                if (!item)
+                {
+                    item = new QTableWidgetItem(sigString);
+                    ui->tableViewer->setItem(i, 1, item);
+                }
+                else item->setText(sigString);
+            }
+        }
+    }
+}
+
+void SignalViewerWindow::removeSelectedSignal()
+{
+    int selRow = ui->tableViewer->currentRow();
+    if (selRow < 0) return; //no selected row
+    signalList.removeAt(selRow);
+    ui->tableViewer->removeRow(selRow);
+}
+
 void SignalViewerWindow::loadMessages()
 {
+    int numFiles;
     ui->cbMessages->clear();
-    if (dbcHandler == NULL) return;
-    if (dbcHandler->getFileCount() == 0) dbcHandler->createBlankFile();
-    for (int x = 0; x < dbcHandler->getFileByIdx(0)->messageHandler->getCount(); x++)
+    if (dbcHandler == nullptr) return;
+    if ((numFiles = dbcHandler->getFileCount()) == 0) return;
+    qDebug() << numFiles;
+    for (int f = 0; f < numFiles; f++)
     {
-        ui->cbMessages->addItem(dbcHandler->getFileByIdx(0)->messageHandler->findMsgByIdx(x)->name);
+        qDebug() << dbcHandler->getFileByIdx(f)->messageHandler->getCount();
+        for (int x = 0; x < dbcHandler->getFileByIdx(f)->messageHandler->getCount(); x++)
+        {
+            ui->cbMessages->addItem(dbcHandler->getFileByIdx(f)->messageHandler->findMsgByIdx(x)->name);
+        }
     }
 }
 
@@ -48,9 +119,9 @@ void SignalViewerWindow::loadSignals(int idx)
     //in the data structure so it should have been possible to just
     //look it up based on index but by name is probably safer and this operation
     //is not time critical at all.
-    DBC_MESSAGE *msg = dbcHandler->getFileByIdx(0)->messageHandler->findMsgByName(ui->cbMessages->currentText());
+    DBC_MESSAGE *msg = dbcHandler->findMessage(ui->cbMessages->currentText());
 
-    if (msg == NULL) return;
+    if (msg == nullptr) return;
     ui->cbSignals->clear();
     for (int x = 0; x < msg->sigHandler->getCount(); x++)
     {
@@ -60,7 +131,7 @@ void SignalViewerWindow::loadSignals(int idx)
 
 void SignalViewerWindow::addSignal()
 {
-    DBC_MESSAGE *msg = dbcHandler->getFileByIdx(0)->messageHandler->findMsgByName(ui->cbMessages->currentText());
+    DBC_MESSAGE *msg = dbcHandler->findMessage(ui->cbMessages->currentText());
     if (!msg) return;
     DBC_SIGNAL *sig = msg->sigHandler->findSignalByName(ui->cbSignals->currentText());
     if (!sig) return;