From 3d339b13279bea84a6fe86b731933c1466396f83 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Wed, 29 Jan 2014 22:21:25 -0800
Subject: [PATCH] Key input

---
 src/gba/gba.h                      |  3 +-
 src/platform/qt/GameController.cpp | 10 +++++
 src/platform/qt/GameController.h   |  2 +
 src/platform/qt/Window.cpp         | 70 ++++++++++++++++++++++++++++++
 src/platform/qt/Window.h           |  9 ++++
 5 files changed, 93 insertions(+), 1 deletion(-)

diff --git a/src/gba/gba.h b/src/gba/gba.h
index 3fa6bfe45..0ddf4ad33 100644
--- a/src/gba/gba.h
+++ b/src/gba/gba.h
@@ -54,7 +54,8 @@ enum GBAKey {
 	GBA_KEY_UP = 6,
 	GBA_KEY_DOWN = 7,
 	GBA_KEY_R = 8,
-	GBA_KEY_L = 9
+	GBA_KEY_L = 9,
+	GBA_KEY_NONE = -1
 };
 
 struct GBARotationSource;
diff --git a/src/platform/qt/GameController.cpp b/src/platform/qt/GameController.cpp
index 3f5c637f3..12178d98a 100644
--- a/src/platform/qt/GameController.cpp
+++ b/src/platform/qt/GameController.cpp
@@ -53,3 +53,13 @@ bool GameController::loadGame(const QString& path) {
 	GBAThreadStart(&m_threadContext);
 	return true;
 }
+
+void GameController::keyPressed(int key) {
+	int mappedKey = 1 << key;
+	m_threadContext.activeKeys |= mappedKey;
+}
+
+void GameController::keyReleased(int key) {
+	int mappedKey = 1 << key;
+	m_threadContext.activeKeys &= ~mappedKey;
+}
diff --git a/src/platform/qt/GameController.h b/src/platform/qt/GameController.h
index dfd953f87..73d675c37 100644
--- a/src/platform/qt/GameController.h
+++ b/src/platform/qt/GameController.h
@@ -30,6 +30,8 @@ signals:
 
 public slots:
 	bool loadGame(const QString& path);
+	void keyPressed(int key);
+	void keyReleased(int key);
 
 private:
 	void setupAudio(GBAAudio* audio);
diff --git a/src/platform/qt/Window.cpp b/src/platform/qt/Window.cpp
index e12533966..5bf0b12a9 100644
--- a/src/platform/qt/Window.cpp
+++ b/src/platform/qt/Window.cpp
@@ -1,6 +1,11 @@
 #include "Window.h"
 
 #include <QFileDialog>
+#include <QKeyEvent>
+
+extern "C" {
+#include "gba.h"
+}
 
 using namespace QGBA;
 
@@ -16,6 +21,43 @@ Window::Window(QWidget* parent) : QMainWindow(parent) {
 	connect(actionOpen, SIGNAL(triggered()), this, SLOT(selectROM()));
 }
 
+GBAKey Window::mapKey(int qtKey) {
+	switch (qtKey) {
+	case Qt::Key_Z:
+		return GBA_KEY_A;
+		break;
+	case Qt::Key_X:
+		return GBA_KEY_B;
+		break;
+	case Qt::Key_A:
+		return GBA_KEY_L;
+		break;
+	case Qt::Key_S:
+		return GBA_KEY_R;
+		break;
+	case Qt::Key_Return:
+		return GBA_KEY_START;
+		break;
+	case Qt::Key_Backspace:
+		return GBA_KEY_SELECT;
+		break;
+	case Qt::Key_Up:
+		return GBA_KEY_UP;
+		break;
+	case Qt::Key_Down:
+		return GBA_KEY_DOWN;
+		break;
+	case Qt::Key_Left:
+		return GBA_KEY_LEFT;
+		break;
+	case Qt::Key_Right:
+		return GBA_KEY_RIGHT;
+		break;
+	default:
+		return GBA_KEY_NONE;
+	}
+}
+
 void Window::selectROM() {
 	QString filename = QFileDialog::getOpenFileName(this, tr("Select ROM"));
 	if (!filename.isEmpty()) {
@@ -23,6 +65,34 @@ void Window::selectROM() {
 	}
 }
 
+void Window::keyPressEvent(QKeyEvent* event) {
+	if (event->isAutoRepeat()) {
+		QWidget::keyPressEvent(event);
+		return;
+	}
+	GBAKey key = mapKey(event->key());
+	if (key == GBA_KEY_NONE) {
+		QWidget::keyPressEvent(event);
+		return;
+	}
+	m_controller->keyPressed(key);
+	event->accept();
+}
+
+void Window::keyReleaseEvent(QKeyEvent* event) {
+	if (event->isAutoRepeat()) {
+		QWidget::keyReleaseEvent(event);
+		return;
+	}
+	GBAKey key = mapKey(event->key());
+	if (key == GBA_KEY_NONE) {
+		QWidget::keyPressEvent(event);
+		return;
+	}
+	m_controller->keyReleased(key);
+	event->accept();
+}
+
 void Window::setupAudio(GBAAudio* audio) {
 	AudioDevice::Thread* thread = new AudioDevice::Thread(this);
 	thread->setInput(audio);
diff --git a/src/platform/qt/Window.h b/src/platform/qt/Window.h
index ea641cfbb..c0cc195cb 100644
--- a/src/platform/qt/Window.h
+++ b/src/platform/qt/Window.h
@@ -4,6 +4,10 @@
 #include <QAudioOutput>
 #include <QMainWindow>
 
+extern "C" {
+#include "gba.h"
+}
+
 #include "GameController.h"
 #include "Display.h"
 
@@ -16,10 +20,15 @@ Q_OBJECT
 
 public:
 	Window(QWidget* parent = 0);
+	static GBAKey mapKey(int qtKey);
 
 public slots:
 	void selectROM();
 
+protected:
+	virtual void keyPressEvent(QKeyEvent* event);
+	virtual void keyReleaseEvent(QKeyEvent* event);
+
 private slots:
 	void setupAudio(GBAAudio*);