Restructure "src/" folder

Moving files from the "src/" folder into "src/legacy", "src/macro-core",
and "src/utils" was necessary as it was becoming a bit too cluttered.

src/macro-core/macro-selection.cpp

@@ -0,0 +1,136 @@
+#include "macro-selection.hpp"
+#include "advanced-scene-switcher.hpp"
+#include "utility.hpp"
+
+#include <QStandardItemModel>
+#include <QDialogButtonBox>
+
+MacroSelection::MacroSelection(QWidget *parent) : QComboBox(parent)
+{
+	addItem(obs_module_text("AdvSceneSwitcher.selectMacro"));
+
+	QStandardItemModel *model =
+		qobject_cast<QStandardItemModel *>(this->model());
+	QModelIndex firstIndex =
+		model->index(0, modelColumn(), rootModelIndex());
+	QStandardItem *firstItem = model->itemFromIndex(firstIndex);
+	firstItem->setSelectable(false);
+	firstItem->setEnabled(false);
+
+	for (auto &m : switcher->macros) {
+		addItem(QString::fromStdString(m->Name()));
+	}
+
+	QWidget::connect(parent, SIGNAL(MacroAdded(const QString &)), this,
+			 SLOT(MacroAdd(const QString &)));
+	QWidget::connect(parent, SIGNAL(MacroRemoved(const QString &)), this,
+			 SLOT(MacroRemove(const QString &)));
+	QWidget::connect(parent,
+			 SIGNAL(MacroRenamed(const QString &, const QString &)),
+			 this,
+			 SLOT(MacroRename(const QString &, const QString &)));
+}
+
+void MacroSelection::MacroAdd(const QString &name)
+{
+	addItem(name);
+}
+
+void MacroSelection::SetCurrentMacro(Macro *m)
+{
+	if (!m) {
+		this->setCurrentIndex(0);
+	} else {
+		this->setCurrentText(QString::fromStdString(m->Name()));
+	}
+}
+
+void MacroSelection::HideSelectedMacro()
+{
+	auto ssWindow = static_cast<AdvSceneSwitcher *>(window());
+	if (!ssWindow) {
+		return;
+	}
+	int idx = ssWindow->ui->macros->currentRow();
+	if (idx == -1) {
+		return;
+	}
+	// +1 for "select macro" entry
+	qobject_cast<QListView *>(view())->setRowHidden(idx + 1, true);
+}
+
+void MacroSelection::ShowAllMacros()
+{
+	auto v = qobject_cast<QListView *>(view());
+	for (int i = count(); i > 0; i--) {
+		v->setRowHidden(i, false);
+	}
+}
+
+void MacroSelection::MacroRemove(const QString &name)
+{
+	int idx = findText(name);
+	if (idx == -1) {
+		return;
+	}
+	removeItem(idx);
+	setCurrentIndex(0);
+}
+
+void MacroSelection::MacroRename(const QString &oldName, const QString &newName)
+{
+	bool renameSelected = currentText() == oldName;
+	int idx = findText(oldName);
+	if (idx == -1) {
+		return;
+	}
+	removeItem(idx);
+	insertItem(idx, newName);
+	if (renameSelected) {
+		setCurrentIndex(findText(newName));
+	}
+}
+
+MacroSelectionDialog::MacroSelectionDialog(QWidget *)
+{
+	setModal(true);
+	setWindowModality(Qt::WindowModality::ApplicationModal);
+	setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+	setMinimumWidth(350);
+	setMinimumHeight(70);
+
+	QDialogButtonBox *buttonbox = new QDialogButtonBox(
+		QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+
+	buttonbox->setCenterButtons(true);
+	connect(buttonbox, &QDialogButtonBox::accepted, this, &QDialog::accept);
+	connect(buttonbox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+
+	_macroSelection = new MacroSelection(window());
+	auto *selectionLayout = new QHBoxLayout;
+	std::unordered_map<std::string, QWidget *> widgetPlaceholders = {
+		{"{{macroSelection}}", _macroSelection},
+	};
+	placeWidgets(obs_module_text("AdvSceneSwitcher.askForMacro"),
+		     selectionLayout, widgetPlaceholders);
+	auto *layout = new QVBoxLayout();
+	layout->addLayout(selectionLayout);
+	layout->addWidget(buttonbox);
+	setLayout(layout);
+}
+
+bool MacroSelectionDialog::AskForMacro(QWidget *parent, std::string &macroName)
+{
+	MacroSelectionDialog dialog(parent);
+	dialog.setWindowTitle(obs_module_text("AdvSceneSwitcher.windowTitle"));
+
+	if (dialog.exec() != DialogCode::Accepted) {
+		return false;
+	}
+	macroName = dialog._macroSelection->currentText().toUtf8().constData();
+	if (macroName == obs_module_text("AdvSceneSwitcher.selectMacro")) {
+		return false;
+	}
+
+	return true;
+}