1#include "Window.h"
  2
  3#include <QFileDialog>
  4#include <QKeyEvent>
  5#include <QKeySequence>
  6#include <QMenuBar>
  7
  8#include "GameController.h"
  9#include "GDBWindow.h"
 10#include "GDBController.h"
 11
 12using namespace QGBA;
 13
 14Window::Window(QWidget* parent)
 15	: QMainWindow(parent)
 16#ifdef USE_GDB_STUB
 17	, m_gdbController(nullptr)
 18#endif
 19{
 20	setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 21	setMinimumSize(240, 160);
 22
 23	m_controller = new GameController(this);
 24	m_display = new Display();
 25	setCentralWidget(m_display);
 26	connect(m_controller, SIGNAL(gameStarted(GBAThread*)), this, SLOT(gameStarted(GBAThread*)));
 27	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_display, SLOT(stopDrawing()));
 28	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), this, SLOT(gameStopped()));
 29	connect(this, SIGNAL(startDrawing(const uint32_t*, GBAThread*)), m_display, SLOT(startDrawing(const uint32_t*, GBAThread*)), Qt::QueuedConnection);
 30	connect(this, SIGNAL(shutdown()), m_display, SLOT(stopDrawing()));
 31	connect(this, SIGNAL(audioBufferSamplesChanged(int)), m_controller, SLOT(setAudioBufferSamples(int)));
 32
 33	setupMenu(menuBar());
 34}
 35
 36GBAKey Window::mapKey(int qtKey) {
 37	switch (qtKey) {
 38	case Qt::Key_Z:
 39		return GBA_KEY_A;
 40		break;
 41	case Qt::Key_X:
 42		return GBA_KEY_B;
 43		break;
 44	case Qt::Key_A:
 45		return GBA_KEY_L;
 46		break;
 47	case Qt::Key_S:
 48		return GBA_KEY_R;
 49		break;
 50	case Qt::Key_Return:
 51		return GBA_KEY_START;
 52		break;
 53	case Qt::Key_Backspace:
 54		return GBA_KEY_SELECT;
 55		break;
 56	case Qt::Key_Up:
 57		return GBA_KEY_UP;
 58		break;
 59	case Qt::Key_Down:
 60		return GBA_KEY_DOWN;
 61		break;
 62	case Qt::Key_Left:
 63		return GBA_KEY_LEFT;
 64		break;
 65	case Qt::Key_Right:
 66		return GBA_KEY_RIGHT;
 67		break;
 68	default:
 69		return GBA_KEY_NONE;
 70	}
 71}
 72
 73void Window::selectROM() {
 74	QString filename = QFileDialog::getOpenFileName(this, tr("Select ROM"));
 75	if (!filename.isEmpty()) {
 76		m_controller->loadGame(filename);
 77	}
 78}
 79
 80#ifdef USE_GDB_STUB
 81void Window::gdbOpen() {
 82	if (!m_gdbController) {
 83		m_gdbController = new GDBController(m_controller, this);
 84	}
 85	GDBWindow* window = new GDBWindow(m_gdbController);
 86	window->show();
 87}
 88#endif
 89
 90void Window::keyPressEvent(QKeyEvent* event) {
 91	if (event->isAutoRepeat()) {
 92		QWidget::keyPressEvent(event);
 93		return;
 94	}
 95	GBAKey key = mapKey(event->key());
 96	if (key == GBA_KEY_NONE) {
 97		QWidget::keyPressEvent(event);
 98		return;
 99	}
100	m_controller->keyPressed(key);
101	event->accept();
102}
103
104void Window::keyReleaseEvent(QKeyEvent* event) {
105	if (event->isAutoRepeat()) {
106		QWidget::keyReleaseEvent(event);
107		return;
108	}
109	GBAKey key = mapKey(event->key());
110	if (key == GBA_KEY_NONE) {
111		QWidget::keyPressEvent(event);
112		return;
113	}
114	m_controller->keyReleased(key);
115	event->accept();
116}
117
118void Window::closeEvent(QCloseEvent* event) {
119	emit shutdown();
120	QMainWindow::closeEvent(event);
121}
122
123void Window::gameStarted(GBAThread* context) {
124	emit startDrawing(m_controller->drawContext(), context);
125	foreach (QAction* action, m_gameActions) {
126		action->setDisabled(false);
127	}
128}
129
130void Window::gameStopped() {
131	foreach (QAction* action, m_gameActions) {
132		action->setDisabled(true);
133	}
134}
135
136void Window::setBuffers512() {
137	emit audioBufferSamplesChanged(512);
138}
139
140void Window::setBuffers1024() {
141	emit audioBufferSamplesChanged(1024);
142}
143
144void Window::setBuffers2048() {
145	emit audioBufferSamplesChanged(2048);
146}
147
148void Window::setBuffers4096() {
149	emit audioBufferSamplesChanged(4096);
150}
151
152void Window::setupMenu(QMenuBar* menubar) {
153	menubar->clear();
154	QMenu* fileMenu = menubar->addMenu(tr("&File"));
155	fileMenu->addAction(tr("Load &ROM..."), this, SLOT(selectROM()), QKeySequence::Open);
156
157	QMenu* emulationMenu = menubar->addMenu(tr("&Emulation"));
158	QAction* reset = new QAction(tr("&Reset"), nullptr);
159	reset->setShortcut(tr("Ctrl+R"));
160	connect(reset, SIGNAL(triggered()), m_controller, SLOT(reset()));
161	m_gameActions.append(reset);
162	emulationMenu->addAction(reset);
163	emulationMenu->addAction(tr("Sh&utdown"), m_controller, SLOT(closeGame()));
164	emulationMenu->addSeparator();
165
166	QAction* pause = new QAction(tr("&Pause"), nullptr);
167	pause->setChecked(false);
168	pause->setCheckable(true);
169	pause->setShortcut(tr("Ctrl+P"));
170	connect(pause, SIGNAL(triggered(bool)), m_controller, SLOT(setPaused(bool)));
171	m_gameActions.append(pause);
172	emulationMenu->addAction(pause);
173
174	QAction* frameAdvance = new QAction(tr("&Next frame"), nullptr);
175	frameAdvance->setShortcut(tr("Ctrl+N"));
176	connect(frameAdvance, SIGNAL(triggered()), m_controller, SLOT(frameAdvance()));
177	m_gameActions.append(frameAdvance);
178	emulationMenu->addAction(frameAdvance);
179
180	QMenu* soundMenu = menubar->addMenu(tr("&Sound"));
181	QMenu* buffersMenu = soundMenu->addMenu(tr("Buffer &size"));
182	buffersMenu->addAction(tr("512"), this, SLOT(setBuffers512()));
183	buffersMenu->addAction(tr("1024"), this, SLOT(setBuffers1024()));
184	buffersMenu->addAction(tr("2048"), this, SLOT(setBuffers2048()));
185	buffersMenu->addAction(tr("4096"), this, SLOT(setBuffers4096()));
186
187	QMenu* debuggingMenu = menubar->addMenu(tr("&Debugging"));
188#ifdef USE_GDB_STUB
189	QAction* gdbWindow = new QAction(tr("Start &GDB server..."), nullptr);
190	connect(gdbWindow, SIGNAL(triggered()), this, SLOT(gdbOpen()));
191	debuggingMenu->addAction(gdbWindow);
192#endif
193
194	foreach (QAction* action, m_gameActions) {
195		action->setDisabled(true);
196	}
197}