1#include "LoadSaveState.h"
  2
  3#include "GameController.h"
  4#include "VFileDevice.h"
  5
  6#include <QKeyEvent>
  7#include <QPainter>
  8
  9extern "C" {
 10#include "gba-serialize.h"
 11#include "gba-video.h"
 12}
 13
 14using namespace QGBA;
 15
 16LoadSaveState::LoadSaveState(GameController* controller, QWidget* parent)
 17	: QWidget(parent)
 18	, m_controller(controller)
 19	, m_currentFocus(0)
 20{
 21	m_ui.setupUi(this);
 22
 23	m_slots[0] = m_ui.state1;
 24	m_slots[1] = m_ui.state2;
 25	m_slots[2] = m_ui.state3;
 26	m_slots[3] = m_ui.state4;
 27	m_slots[4] = m_ui.state5;
 28	m_slots[5] = m_ui.state6;
 29	m_slots[6] = m_ui.state7;
 30	m_slots[7] = m_ui.state8;
 31	m_slots[8] = m_ui.state9;
 32
 33	int i;
 34	for (i = 0; i < NUM_SLOTS; ++i) {
 35		loadState(i + 1);
 36		m_slots[i]->installEventFilter(this);
 37		connect(m_slots[i], &QAbstractButton::clicked, this, [this, i]() { triggerState(i + 1); });
 38	}
 39}
 40
 41void LoadSaveState::setMode(LoadSave mode) {
 42	m_mode = mode;
 43	QString text = mode == LoadSave::LOAD ? tr("Load State") : tr("Save State");
 44	setWindowTitle(text);
 45	m_ui.lsLabel->setText(text);
 46}
 47
 48bool LoadSaveState::eventFilter(QObject* object, QEvent* event) {
 49	if (event->type() == QEvent::KeyPress) {
 50		int column = m_currentFocus % 3;
 51		int row = m_currentFocus - column;
 52		switch (static_cast<QKeyEvent*>(event)->key()) {
 53		case Qt::Key_Up:
 54			row += 6;
 55			break;
 56		case Qt::Key_Down:
 57			row += 3;
 58			break;
 59		case Qt::Key_Left:
 60			column += 2;
 61			break;
 62		case Qt::Key_Right:
 63			column += 1;
 64			break;
 65		case Qt::Key_1:
 66		case Qt::Key_2:
 67		case Qt::Key_3:
 68		case Qt::Key_4:
 69		case Qt::Key_5:
 70		case Qt::Key_6:
 71		case Qt::Key_7:
 72		case Qt::Key_8:
 73		case Qt::Key_9:
 74			triggerState(static_cast<QKeyEvent*>(event)->key() - Qt::Key_1 + 1);
 75			break;
 76		case Qt::Key_Escape:
 77			close();
 78			break;
 79		case Qt::Key_Enter:
 80		case Qt::Key_Return:
 81			triggerState(m_currentFocus + 1);
 82			break;
 83		default:
 84			return false;
 85		}
 86		column %= 3;
 87		row %= 9;
 88		m_currentFocus = column + row;
 89		m_slots[m_currentFocus]->setFocus();
 90		return true;
 91	}
 92	if (event->type() == QEvent::Enter) {
 93		int i;
 94		for (i = 0; i < 9; ++i) {
 95			if (m_slots[i] == object) {
 96				m_currentFocus = i;
 97				m_slots[m_currentFocus]->setFocus();
 98				return true;
 99			}
100		}
101	}
102	return false;
103}
104
105void LoadSaveState::loadState(int slot) {
106	GBAThread* thread = m_controller->thread();
107	VFile* vf = GBAGetState(thread->gba, thread->stateDir, slot, false);
108	if (!vf) {
109		m_slots[slot - 1]->setText(tr("Empty"));
110		return;
111	}
112	VFileDevice vdev(vf);
113	QImage stateImage;
114	stateImage.load(&vdev, "PNG");
115	if (!stateImage.isNull()) {
116		QPixmap statePixmap;
117		statePixmap.convertFromImage(stateImage);
118		m_slots[slot - 1]->setIcon(statePixmap);
119		m_slots[slot - 1]->setText(QString());
120	} else {
121		m_slots[slot - 1]->setText(tr("Slot %1").arg(slot));
122	}
123}
124
125void LoadSaveState::triggerState(int slot) {
126	if (m_mode == LoadSave::SAVE) {
127		m_controller->saveState(slot);
128	} else {
129		m_controller->loadState(slot);
130	}
131	close();
132}
133
134void LoadSaveState::closeEvent(QCloseEvent* event) {
135	emit closed();
136	QWidget::closeEvent(event);
137}
138
139void LoadSaveState::showEvent(QShowEvent* event) {
140	m_slots[m_currentFocus]->setFocus();
141	QWidget::showEvent(event);
142}
143
144void LoadSaveState::paintEvent(QPaintEvent*) {
145	QPainter painter(this);
146	QRect full(QPoint(), size());
147	painter.drawPixmap(full, m_currentImage);
148	painter.fillRect(full, QColor(0, 0, 0, 128));
149}