Qt: Allow rebinding keyboard controls (#779)

* Initial input UI draft Co-Authored-By: Paris Oplopoios <parisoplop@gmail.com> * More keybinding work Co-Authored-By: Paris Oplopoios <parisoplop@gmail.com> * Nit Co-Authored-By: Paris Oplopoios <parisoplop@gmail.com> * More nits Co-Authored-By: Paris Oplopoios <parisoplop@gmail.com> --------- Co-authored-by: Paris Oplopoios <parisoplop@gmail.com>
2025-07-18 04:08:08 +03:00
parent 3cae1bd256
commit 81f37e1699
14 changed files with 385 additions and 14 deletions
--- a/src/panda_qt/input_window.cpp
+++ b/src/panda_qt/input_window.cpp
@@ -0,0 +1,127 @@
+#include "panda_qt/input_window.hpp"
+
+#include <QHBoxLayout>
+#include <QKeyEvent>
+#include <QLabel>
+#include <QPushButton>
+#include <QVBoxLayout>
+
+#include "input_mappings.hpp"
+#include "services/hid.hpp"
+
+InputWindow::InputWindow(QWidget* parent) : QDialog(parent) {
+	auto mainLayout = new QVBoxLayout(this);
+
+	QStringList actions = {
+		"A",
+		"B",
+		"X",
+		"Y",
+		"L",
+		"R",
+		"ZL",
+		"ZR",
+		"Start",
+		"Select",
+		"D-Pad Up",
+		"D-Pad Down",
+		"D-Pad Left",
+		"D-Pad Right",
+		"CirclePad Up",
+		"CirclePad Down",
+		"CirclePad Left",
+		"CirclePad Right",
+	};
+
+	for (const QString& action : actions) {
+		auto row = new QHBoxLayout();
+		row->addWidget(new QLabel(action));
+
+		auto button = new QPushButton(tr("Not set"));
+		buttonMap[action] = button;
+		keyMappings[action] = QKeySequence();
+
+		connect(button, &QPushButton::clicked, this, [=, this]() { startKeyCapture(action); });
+
+		row->addWidget(button);
+		mainLayout->addLayout(row);
+	}
+
+	auto resetButton = new QPushButton(tr("Reset Defaults"));
+	connect(resetButton, &QPushButton::pressed, this, [&]() {
+		// Restore the keymappings to the default ones for Qt
+		auto defaultMappings = InputMappings::defaultKeyboardMappings();
+		loadFromMappings(defaultMappings);
+
+		emit mappingsChanged();
+	});
+
+	mainLayout->addWidget(resetButton);
+	installEventFilter(this);
+}
+
+void InputWindow::startKeyCapture(const QString& action) {
+	waitingForAction = action;
+	grabKeyboard();
+}
+
+bool InputWindow::eventFilter(QObject* obj, QEvent* event) {
+	// If we're waiting for a button to be inputted, handle the keypress
+	if (!waitingForAction.isEmpty() && event->type() == QEvent::KeyPress) {
+		QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+		QKeySequence key(keyEvent->key());
+
+		// If this key is already bound to something else, unbind it
+		for (auto it = keyMappings.begin(); it != keyMappings.end(); ++it) {
+			if (it.key() != waitingForAction && it.value() == key) {
+				it.value() = QKeySequence();
+				buttonMap[it.key()]->setText(tr("Not set"));
+				break;
+			}
+		}
+
+		keyMappings[waitingForAction] = key;
+		buttonMap[waitingForAction]->setText(key.toString());
+
+		releaseKeyboard();
+		waitingForAction.clear();
+
+		emit mappingsChanged();
+		return true;
+	}
+
+	return false;
+}
+
+void InputWindow::loadFromMappings(const InputMappings& mappings) {
+	for (const auto& action : buttonMap.keys()) {
+		u32 key = HID::Keys::nameToKey(action.toStdString());
+
+		for (const auto& [scancode, mappedKey] : mappings) {
+			if (mappedKey == key) {
+				QKeySequence qkey(scancode);
+				keyMappings[action] = qkey;
+				buttonMap[action]->setText(qkey.toString());
+				break;
+			}
+		}
+	}
+}
+
+void InputWindow::applyToMappings(InputMappings& mappings) const {
+	// Clear existing keyboard mappings before mapping the buttons
+	mappings = InputMappings();
+
+	for (const auto& action : keyMappings.keys()) {
+		const QKeySequence& qkey = keyMappings[action];
+
+		if (!qkey.isEmpty()) {
+			InputMappings::Scancode scancode = qkey[0].key();
+			u32 key = HID::Keys::nameToKey(action.toStdString());
+
+			if (key != HID::Keys::Null) {
+				mappings.setMapping(scancode, key);
+			}
+		}
+	}
+}