Move themes to PreferenceEditor

src/ui/preferenceeditor.cpp

@@ -1,15 +1,23 @@
 #include "preferenceeditor.h"
 #include "ui_preferenceeditor.h"
 #include "config.h"
+#include "noscrollcombobox.h"
 
 #include <QAbstractButton>
+#include <QRegularExpression>
+#include <QDirIterator>
+#include <QFormLayout>
 
 
 PreferenceEditor::PreferenceEditor(QWidget *parent) :
     QMainWindow(parent),
-    ui(new Ui::PreferenceEditor)
+    ui(new Ui::PreferenceEditor),
+    themeSelector(nullptr)
 {
     ui->setupUi(this);
+    auto *formLayout = new QFormLayout(ui->groupBox_Themes);
+    themeSelector = new NoScrollComboBox(ui->groupBox_Themes);
+    formLayout->addRow("Themes", themeSelector);
     setAttribute(Qt::WA_DeleteOnClose);
     connect(ui->buttonBox, &QDialogButtonBox::clicked,
             this, &PreferenceEditor::dialogButtonClicked);
@@ -23,10 +31,28 @@ PreferenceEditor::~PreferenceEditor()
 
 void PreferenceEditor::populateFields() {
     ui->lineEdit_TextEditor->setText(porymapConfig.getTextEditorCommand());
+
+    QStringList themes = { "default" };
+    QRegularExpression re(":/themes/([A-z0-9_-]+).qss");
+    QDirIterator it(":/themes", QDirIterator::Subdirectories);
+    while (it.hasNext()) {
+        QString themeName = re.match(it.next()).captured(1);
+        themes.append(themeName);
+    }
+    themeSelector->addItems(themes);
+    themeSelector->setCurrentText(porymapConfig.getTheme());
 }
 
 void PreferenceEditor::saveFields() {
     porymapConfig.setTextEditorCommand(ui->lineEdit_TextEditor->text());
+
+    if (themeSelector->currentText() != porymapConfig.getTheme()) {
+        const auto theme = themeSelector->currentText();
+        porymapConfig.setTheme(theme);
+        emit themeChanged(theme);
+    }
+
+    emit preferencesSaved();
 }
 
 void PreferenceEditor::dialogButtonClicked(QAbstractButton *button) {