Add MonitorSelectionWidget

Refreshes list of monitors when widget becomes visible to support widget
caching

plugins/base/utils/monitor-helpers.cpp

@@ -47,4 +47,23 @@ QStringList GetMonitorNames()
 	return monitorNames;
 }
 
+MonitorSelectionWidget::MonitorSelectionWidget(QWidget *parent)
+	: FilterComboBox(parent)
+{
+	setEditable(true);
+	SetAllowUnmatchedSelection(true);
+	setMaxVisibleItems(20);
+	addItems(GetMonitorNames());
+}
+
+void MonitorSelectionWidget::showEvent(QShowEvent *event)
+{
+	FilterComboBox::showEvent(event);
+	const QSignalBlocker b(this);
+	const auto text = currentText();
+	clear();
+	addItems(GetMonitorNames());
+	setCurrentText(text);
+}
+
 } // namespace advss

plugins/base/utils/monitor-helpers.hpp

@@ -1,8 +1,18 @@
 #pragma once
-#include <QStringList>
+#include "filter-combo-box.hpp"
 
 namespace advss {
 
 QStringList GetMonitorNames();
 
+class MonitorSelectionWidget : public FilterComboBox {
+	Q_OBJECT
+
+public:
+	MonitorSelectionWidget(QWidget *parent);
+
+protected:
+	void showEvent(QShowEvent *event) override;
+};
+
 } // namespace advss