Qt: Add gamepad selector

src/platform/qt/ShortcutView.cpp

@@ -35,6 +35,11 @@ ShortcutView::ShortcutView(QWidget* parent)
 	connect(m_ui.keyEdit, &KeyEditor::axisChanged, this, &ShortcutView::updateAxis);
 	connect(m_ui.shortcutTable, &QAbstractItemView::doubleClicked, this, &ShortcutView::load);
 	connect(m_ui.clearButton, &QAbstractButton::clicked, this, &ShortcutView::clear);
+#ifdef BUILD_SDL
+	connect(m_ui.gamepadName, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [this](int index) {
+		m_input->setGamepad(SDL_BINDING_BUTTON, index);
+	});
+#endif
 }
 
 ShortcutView::~ShortcutView() {
@@ -51,6 +56,25 @@ void ShortcutView::setInputController(InputController* controller) {
 	}
 	m_input = controller;
 	m_input->stealFocus(this);
+	updateGamepads();
+}
+
+void ShortcutView::updateGamepads() {
+	if (!m_input) {
+		return;
+	}
+#ifdef BUILD_SDL
+	m_ui.gamepadName->clear();
+
+	QStringList gamepads = m_input->connectedGamepads(SDL_BINDING_BUTTON);
+	int activeGamepad = m_input->gamepad(SDL_BINDING_BUTTON);
+
+	for (const auto& gamepad : gamepads) {
+		m_ui.gamepadName->addItem(gamepad);
+	}
+	m_ui.gamepadName->setCurrentIndex(activeGamepad);
+#endif
+
 }
 
 void ShortcutView::load(const QModelIndex& index) {

src/platform/qt/ShortcutView.h

@@ -39,6 +39,7 @@ private slots:
 	void clear();
 	void updateButton(int button);
 	void updateAxis(int axis, int direction);
+	void updateGamepads();
 
 private:
 	Ui::ShortcutView m_ui;

src/platform/qt/ShortcutView.ui

@@ -72,6 +72,27 @@
      </item>
     </layout>
    </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Current Gamepad</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="gamepadName">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+         <horstretch>1</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
   </layout>
  </widget>
  <customwidgets>