Initial Commit

FileHandler.cpp

@@ -0,0 +1,139 @@
+#include "FileHandler.h"
+
+#include <QFileInfo>
+#include <QTextStream>
+#include <QFile>
+#include <QDir>
+#include "Scene.h"
+#include "Part.h"
+#include "Wire.h"
+#include "Connector.h"
+#include "Logic.h"
+#include "MainWindow.h"
+
+#include "Parts/IntegratedCircuit.h"
+
+#include <QDebug>
+
+FileHandler::FileHandler(Logic* logic)
+    :m_logic(logic)
+{
+}
+
+bool FileHandler::exists(QString filename)
+{
+    QFile file(filename);
+    return file.exists();
+}
+
+bool FileHandler::save(QString filename)
+{
+    QFile file(filename);
+
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+        return false;
+
+    QTextStream fOut(&file);
+
+    fOut << "[parts]\n";
+    for(auto part : m_logic->m_parts)
+    {
+        fOut << part << " " << part->m_partType << " " << part->pos().x() << " " << part->pos().y();
+        if(part->m_partType == PartType::IntegratedCircuit)
+        {
+            // Strip out IC file path
+            QFileInfo fileInfo(((IntegratedCircuit*)part)->filename());
+            QString icFile(fileInfo.fileName());
+            fOut << " " << icFile;
+        }
+        fOut << "\n";
+    }
+
+    fOut << "[wires]\n";
+    for(auto wire : m_logic->m_wires)
+    {
+        auto wireInputPart = (Part*)wire->m_connectorInput->parentItem();
+        auto wireOutputPart = (Part*)wire->m_connectorOutput->parentItem();
+
+        fOut << wireInputPart << " " << wireInputPart->m_outputs.indexOf(wire->m_connectorInput) << " " << wireOutputPart << " " << wireOutputPart->m_inputs.indexOf(wire->m_connectorOutput) << "\n";
+    }
+    return true;
+}
+
+bool FileHandler::open(QString filename)
+{
+    //TODO: Make it possible to load IC filenames with spaces
+
+    QFile file(filename);
+
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+        return false;
+
+    enum Sector
+    {
+        Parts,
+        Wires
+    };
+
+    Sector currentSector;
+
+    // A .csim file stores all parts with IDs, this map simply keeps track of which ID was given which pointer
+    QMap<QString, Part*> idPartPointerMap;
+
+    while (!file.atEnd()) {
+        QString line = file.readLine();
+        if(line.contains("[parts]"))
+            currentSector = Parts;
+        else if(line.contains("[wires]"))
+            currentSector = Wires;
+        else
+        {
+            QVector<QString> words;
+            QString currWord;
+            for(QChar c : line)
+            {
+                if(c == QChar::Space)
+                {
+                    words.append(currWord);
+                    currWord.clear();
+                }
+                else
+                    currWord.append(c);
+            }
+            words.append(currWord);
+            // Remove the \n from last word
+            words.last().remove(words.last().length() - 1, 1);
+
+            if(words.length() < 4)
+                return false;
+
+            if(currentSector == Parts)
+            {
+                PartType::PartType type = (PartType::PartType)words[1].toInt();
+                QPointF pos = QPointF(words[2].toFloat(), words[3].toFloat());
+                Part* part;
+                if(type == PartType::IntegratedCircuit)
+                {
+                    QDir icDir(filename);
+                    icDir.cdUp();
+                    QString icFilename = icDir.filePath(words[4]);
+                    if(!QFile(icFilename).exists())
+                    {
+                        qFatal("Failed to open IC file: " + icFilename.toUtf8());
+                    }
+                    part = m_logic->createIC(icFilename, pos);
+                }
+                else
+                    part = m_logic->createPart(type, pos);
+                idPartPointerMap.insert(words[0], part);
+            }
+            else
+            {
+                auto inputConnector = idPartPointerMap[words[0]]->m_outputs[words[1].toInt()];
+                auto outputConnector = idPartPointerMap[words[2]]->m_inputs[words[3].toInt()];
+                m_logic->createWire(inputConnector, outputConnector);
+            }
+        }
+    }
+    return true;
+}