- enhancement: auto save / load problem set

Contributors.md

@@ -31,4 +31,4 @@ author: Alan-CRL
 
 ### Monokai
 
-author: СÁúDev
+author: СÁúDev(XiaoLoong@github)

NEWS.md

@@ -1,7 +1,8 @@
 Red Panda C++ Version 2.5
 
-  - enhancement: new color scheme Monokai (contributed by 小龙Dev)
+  - enhancement: new color scheme Monokai (contributed by 小龙Dev(XiaoLoong@github))
   - enhancemnet: add "Reserve word for Types" item in color scheme
+  - enhancement: auto save / load problem set
 
 Red Panda C++ Version 2.4
 

RedPandaIDE/mainwindow.cpp

@@ -321,9 +321,11 @@ MainWindow::MainWindow(QWidget *parent)
     //problem set
     mOJProblemSetNameCounter=1;
     mOJProblemSetModel.rename(tr("Problem Set %1").arg(mOJProblemSetNameCounter));
+
     m=ui->lstProblemSet->selectionModel();
     ui->lstProblemSet->setModel(&mOJProblemSetModel);
     delete m;
+
     m=ui->tblProblemCases->selectionModel();
     ui->tblProblemCases->setModel(&mOJProblemModel);
     delete m;
@@ -341,6 +343,19 @@ MainWindow::MainWindow(QWidget *parent)
 
     connect(&mOJProblemModel, &OJProblemModel::dataChanged,
             this, &MainWindow::updateProblemTitle);
+    try {
+        int currentIndex=-1;
+        mOJProblemSetModel.load(currentIndex);
+        if (currentIndex>=0) {
+            QModelIndex index = mOJProblemSetModel.index(currentIndex,0);
+            ui->lstProblemSet->setCurrentIndex(index);
+            ui->lstProblemSet->scrollTo(index);
+        }
+    } catch (FileError& e) {
+        QMessageBox::warning(nullptr,
+                             tr("Error"),
+                             e.reason());
+    }
 
     //files view
     m=ui->treeFiles->selectionModel();
@@ -4919,6 +4934,17 @@ void MainWindow::closeEvent(QCloseEvent *event) {
                              e.reason());
         }
 
+        try {
+            int currentIndex=-1;
+            if (ui->lstProblemSet->currentIndex().isValid())
+                currentIndex = ui->lstProblemSet->currentIndex().row();
+            mOJProblemSetModel.save(currentIndex);
+        } catch (FileError& e) {
+            QMessageBox::warning(nullptr,
+                             tr("Save Error"),
+                             e.reason());
+        }
+
         if (pSettings->debugger().autosave()) {
             try {
                 mDebugger->saveForNonproject(includeTrailingPathDelimiter(pSettings->dirs().config())
@@ -7694,7 +7720,10 @@ void MainWindow::on_btnSaveProblemSet_clicked()
         QDir::setCurrent(extractFileDir(fileName));
         try {
             applyCurrentProblemCaseChanges();
-            mOJProblemSetModel.saveToFile(fileName);
+            int currentIndex=-1;
+            if (ui->lstProblemSet->currentIndex().isValid())
+                currentIndex = ui->lstProblemSet->currentIndex().row();
+            mOJProblemSetModel.saveToFile(fileName,currentIndex);
         } catch (FileError& error) {
             QMessageBox::critical(this,tr("Save Error"),
                                   error.reason());
@@ -7713,7 +7742,15 @@ void MainWindow::on_btnLoadProblemSet_clicked()
     if (!fileName.isEmpty()) {
         QDir::setCurrent(extractFileDir(fileName));
         try {
-            mOJProblemSetModel.loadFromFile(fileName);
+            int currentIndex;
+            mOJProblemSetModel.loadFromFile(fileName,currentIndex);
+            if (currentIndex>=0) {
+                if (currentIndex>=0) {
+                    QModelIndex index = mOJProblemSetModel.index(currentIndex,0);
+                    ui->lstProblemSet->setCurrentIndex(index);
+                    ui->lstProblemSet->scrollTo(index);
+                }
+            }
         } catch (FileError& error) {
             QMessageBox::critical(this,tr("Load Error"),
                                   error.reason());

RedPandaIDE/systemconsts.h

@@ -92,6 +92,8 @@
 #define DEV_BOOKMARK_FILE "bookmarks.json"
 #define DEV_DEBUGGER_FILE "debugger.json"
 #define DEV_HISTORY_FILE "history.json"
+#define DEV_PROBLEM_SET_FILE "problemset.json"
+
 
 #ifdef Q_OS_WIN
 #   define PATH_SENSITIVITY Qt::CaseInsensitive

RedPandaIDE/widgets/ojproblemsetmodel.cpp

@@ -16,6 +16,7 @@
  */
 #include "ojproblemsetmodel.h"
 
+#include <QDir>
 #include <QFile>
 #include <QIcon>
 #include <QJsonArray>
@@ -25,6 +26,7 @@
 #include "../utils.h"
 #include "../iconsmanager.h"
 #include "../systemconsts.h"
+#include "../settings.h"
 
 OJProblemSetModel::OJProblemSetModel(QObject *parent) : QAbstractListModel(parent)
 {
@@ -100,7 +102,7 @@ void OJProblemSetModel::removeAllProblems()
     clear();
 }
 
-void OJProblemSetModel::saveToFile(const QString &fileName)
+void OJProblemSetModel::saveToFile(const QString &fileName, int currentIndex)
 {
     QFile file(fileName);
     if (file.open(QFile::WriteOnly | QFile::Truncate)) {
@@ -138,6 +140,7 @@ void OJProblemSetModel::saveToFile(const QString &fileName)
             problemsArray.append(problemObj);
         }
         obj["problems"]=problemsArray;
+        obj["current_index"]=currentIndex;
         QJsonDocument doc;
         doc.setObject(obj);
         file.write(doc.toJson());
@@ -148,7 +151,7 @@ void OJProblemSetModel::saveToFile(const QString &fileName)
     }
 }
 
-void OJProblemSetModel::loadFromFile(const QString &fileName)
+void OJProblemSetModel::loadFromFile(const QString &fileName, int& currentIndex)
 {
     QFile file(fileName);
     if (file.open(QFile::ReadOnly)) {
@@ -163,6 +166,7 @@ void OJProblemSetModel::loadFromFile(const QString &fileName)
         beginResetModel();
         QJsonObject obj = doc.object();
         mProblemSet.name = obj["name"].toString();
+        currentIndex = obj["current_index"].toInt(-1);
         mProblemSet.problems.clear();
         QJsonArray problemsArray = obj["problems"].toArray();
         foreach (const QJsonValue& problemVal, problemsArray) {
@@ -203,6 +207,21 @@ void OJProblemSetModel::loadFromFile(const QString &fileName)
     }
 }
 
+void OJProblemSetModel::load(int &currentIndex)
+{
+    QDir dir(pSettings->dirs().config());
+    QString filename=dir.filePath(DEV_PROBLEM_SET_FILE);
+    if (fileExists(filename))
+        loadFromFile(filename,currentIndex);
+}
+
+void OJProblemSetModel::save(int currentIndex)
+{
+    QDir dir(pSettings->dirs().config());
+    QString filename=dir.filePath(DEV_PROBLEM_SET_FILE);
+    saveToFile(filename,currentIndex);
+}
+
 void OJProblemSetModel::updateProblemAnswerFilename(const QString &oldFilename, const QString &newFilename)
 {
     foreach (POJProblem problem, mProblemSet.problems) {

RedPandaIDE/widgets/ojproblemsetmodel.h

@@ -85,8 +85,10 @@ public:
     void removeProblem(int index);
     bool problemNameUsed(const QString& name);
     void removeAllProblems();
-    void saveToFile(const QString& fileName);
-    void loadFromFile(const QString& fileName);
+    void saveToFile(const QString& fileName, int currentIndex=-1);
+    void loadFromFile(const QString& fileName, int& currentIndex);
+    void load(int& currentIndex);
+    void save(int currentIndex);
     void updateProblemAnswerFilename(const QString& oldFilename, const QString& newFilename);
 
 signals: