Add option to search in variable tab

lib/variables/variable-tab.hpp

@@ -1,5 +1,8 @@
 #pragma once
 #include "resource-table.hpp"
+#include "regex-config.hpp"
+
+#include <QComboBox>
 
 namespace advss {
 
@@ -7,14 +10,31 @@ class VariableTable final : public ResourceTable {
 	Q_OBJECT
 
 public:
-	static VariableTable *Create();
+	struct Settings {
+		void Save(obs_data_t *data, const char *name);
+		void Load(obs_data_t *data, const char *name);
+
+		enum SearchType { ALL = -1, NAME = 0, VALUE = 1 };
+
+		SearchType searchType = SearchType::ALL;
+		std::string searchString;
+		RegexConfig regex;
+	};
+
+	VariableTable(Settings &settings, QWidget *parent = nullptr);
+	static VariableTable *CreateTabTable();
 
 private slots:
 	void Add();
 	void Remove();
+	void Filter();
 
 private:
-	VariableTable(QTabWidget *parent = nullptr);
+	QLineEdit *_searchField;
+	QComboBox *_searchType;
+	RegexConfigWidget *_regexWidget;
+
+	Settings &_settings;
 };
 
 } // namespace advss