GH-2150 Split out custom commands into a custom widget

Now it is used from a global page and from a sub-page in the instance settings.

application/pages/global/CustomCommandsPage.cpp

@@ -0,0 +1,50 @@
+#include "CustomCommandsPage.h"
+#include <QVBoxLayout>
+#include <QTabWidget>
+#include <QTabBar>
+
+CustomCommandsPage::CustomCommandsPage(QWidget* parent): QWidget(parent)
+{
+
+	auto verticalLayout = new QVBoxLayout(this);
+	verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
+	verticalLayout->setContentsMargins(0, 0, 0, 0);
+
+	auto tabWidget = new QTabWidget(this);
+	tabWidget->setObjectName(QStringLiteral("tabWidget"));
+	commands = new CustomCommands(this);
+	tabWidget->addTab(commands, "Foo");
+	tabWidget->tabBar()->hide();
+	verticalLayout->addWidget(tabWidget);
+	loadSettings();
+}
+
+CustomCommandsPage::~CustomCommandsPage()
+{
+}
+
+bool CustomCommandsPage::apply()
+{
+	applySettings();
+	return true;
+}
+
+void CustomCommandsPage::applySettings()
+{
+	auto s = MMC->settings();
+	s->set("PreLaunchCommand", commands->prelaunchCommand());
+	s->set("WrapperCommand", commands->wrapperCommand());
+	s->set("PostExitCommand", commands->postexitCommand());
+}
+
+void CustomCommandsPage::loadSettings()
+{
+	auto s = MMC->settings();
+	commands->initialize(
+		false,
+		true,
+		s->get("PreLaunchCommand").toString(),
+		s->get("WrapperCommand").toString(),
+		s->get("PostExitCommand").toString()
+	);
+}