Fix QProcess::splitCommand() dependency on Qt 5.15.

Fix shortcut for Open Map Scripts (Due to merge).

include/core/parseutil.h

@@ -63,6 +63,8 @@ public:
     static QString &removeLineComments(QString &text, const QString &commentSymbol);
     static QString &removeLineComments(QString &text, const QStringList &commentSymbols);
 
+    static QStringList splitShellCommand(QStringView command);
+
 private:
     QString root;
     QString text;

porymap.pro

@@ -165,7 +165,7 @@ FORMS    += forms/mainwindow.ui \
     forms/aboutporymap.ui \
     forms/newtilesetdialog.ui \
     forms/mapimageexporter.ui \
-    forms/shortcutseditor.ui
+    forms/shortcutseditor.ui \
     forms/preferenceeditor.ui
 
 RESOURCES += \

src/core/parseutil.cpp

@@ -487,3 +487,51 @@ QString &ParseUtil::removeLineComments(QString &text, const QStringList &comment
         removeLineComments(text, commentSymbol);
     return text;
 }
+
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
+#include <QProcess>
+
+QStringList ParseUtil::splitShellCommand(QStringView command) {
+    return QProcess::splitCommand(command);
+}
+#else
+// The source for QProcess::splitCommand() as of Qt 5.15.2
+QStringList ParseUtil::splitShellCommand(QStringView command) {
+    QStringList args;
+    QString tmp;
+    int quoteCount = 0;
+    bool inQuote = false;
+
+    // handle quoting. tokens can be surrounded by double quotes
+    // "hello world". three consecutive double quotes represent
+    // the quote character itself.
+    for (int i = 0; i < command.size(); ++i) {
+        if (command.at(i) == QLatin1Char('"')) {
+            ++quoteCount;
+            if (quoteCount == 3) {
+                // third consecutive quote
+                quoteCount = 0;
+                tmp += command.at(i);
+            }
+            continue;
+        }
+        if (quoteCount) {
+            if (quoteCount == 1)
+                inQuote = !inQuote;
+            quoteCount = 0;
+        }
+        if (!inQuote && command.at(i).isSpace()) {
+            if (!tmp.isEmpty()) {
+                args += tmp;
+                tmp.clear();
+            }
+        } else {
+            tmp += command.at(i);
+        }
+    }
+    if (!tmp.isEmpty())
+        args += tmp;
+
+    return args;
+}
+#endif

src/editor.cpp

@@ -2084,7 +2084,7 @@ bool Editor::startDetachedProcess(const QString &command, const QString &working
     process.setNativeArguments("/c " + command);
     process.setWorkingDirectory(workingDirectory);
 #else
-    QStringList arguments = QProcess::splitCommand(command);
+    QStringList arguments = ParseUtil::splitShellCommand(command);
     process.setProgram(arguments.takeFirst());
     process.setArguments(arguments);
     process.setWorkingDirectory(workingDirectory);

src/mainwindow.cpp

@@ -144,9 +144,9 @@ void MainWindow::initExtraShortcuts() {
     shortcutCollapse_All->setObjectName("shortcutCollapse_All");
     shortcutCollapse_All->setWhatsThis("Map List: Collapse all folders");
 
-    auto *shortcutNew_Event = new Shortcut(QKeySequence(), this, SLOT(on_toolButton_Open_Scripts_clicked()));
-    shortcutNew_Event->setObjectName("shortcut_Open_Scripts");
-    shortcutNew_Event->setWhatsThis("Open Map Scripts");
+    auto *shortcut_Open_Scripts = new Shortcut(QKeySequence(), ui->toolButton_Open_Scripts, SLOT(click()));
+    shortcut_Open_Scripts->setObjectName("shortcut_Open_Scripts");
+    shortcut_Open_Scripts->setWhatsThis("Open Map Scripts");
 }
 
 QObjectList MainWindow::shortcutableObjects() const {
@@ -231,7 +231,7 @@ void MainWindow::initEditor() {
     connect(this->editor, SIGNAL(currentMetatilesSelectionChanged()), this, SLOT(currentMetatilesSelectionChanged()));
     connect(this->editor, SIGNAL(wildMonDataChanged()), this, SLOT(onWildMonDataChanged()));
     connect(this->editor, &Editor::mapRulerStatusChanged, this, &MainWindow::onMapRulerStatusChanged);
-    connect(ui->toolButton_Open_Scripts, &QToolButton::pressed, this->editor, QOverload<>::of(&Editor::openMapScripts));
+    connect(ui->toolButton_Open_Scripts, &QToolButton::pressed, this->editor, &Editor::openMapScripts);
     connect(ui->actionOpen_Project_in_Text_Editor, &QAction::triggered, this->editor, &Editor::openProjectInTextEditor);
 
     this->loadUserSettings();