/* Copyright (c) 2013-2015 Jeffrey Pfau
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PaletteView.h"

#include <QFontDatabase>

using namespace QGBA;

PaletteView::PaletteView(GameController* controller, QWidget* parent)
	: QWidget(parent)
	, m_controller(controller)
{
	m_ui.setupUi(this);

	connect(m_controller, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(updatePalette()));
	m_ui.bgGrid->setDimensions(QSize(16, 16));
	m_ui.objGrid->setDimensions(QSize(16, 16));
	m_ui.selected->setSize(64);
	m_ui.selected->setDimensions(QSize(1, 1));
	updatePalette();

	const QFont font = QFontDatabase::systemFont(QFontDatabase::FixedFont);

	m_ui.hexcode->setFont(font);
	m_ui.value->setFont(font);
	m_ui.index->setFont(font);
	m_ui.r->setFont(font);
	m_ui.g->setFont(font);
	m_ui.b->setFont(font);

	connect(m_ui.bgGrid, SIGNAL(indexPressed(int)), this, SLOT(selectIndex(int)));
	connect(m_ui.objGrid, &Swatch::indexPressed, [this] (int index) { selectIndex(index + 256); });

	connect(controller, SIGNAL(gameStopped(GBAThread*)), this, SLOT(close()));
}

void PaletteView::updatePalette() {
	if (!m_controller->thread() || !m_controller->thread()->gba) {
		return;
	}
	const uint16_t* palette = m_controller->thread()->gba->video.palette;
	for (int i = 0; i < 256; ++i) {
		m_ui.bgGrid->setColor(i, palette[i]);
		m_ui.objGrid->setColor(i, palette[i + 256]);
	}
	m_ui.bgGrid->update();
	m_ui.objGrid->update();
}

void PaletteView::selectIndex(int index) {
	uint16_t color = m_controller->thread()->gba->video.palette[index];
	m_ui.selected->setColor(0, color);
	uint32_t r = color & 0x1F;
	uint32_t g = (color >> 5) & 0x1F;
	uint32_t b = (color >> 10) & 0x1F;
	uint32_t hexcode = (r << 19) | (g << 11) | (b << 3);
	m_ui.hexcode->setText(tr("#%0").arg(hexcode, 6, 16, QChar('0')));
	m_ui.value->setText(tr("0x%0").arg(color, 4, 16, QChar('0')));
	m_ui.index->setText(tr("%0").arg(index, 3, 10, QChar('0')));
	m_ui.r->setText(tr("0x%0 (%1)").arg(r, 2, 16, QChar('0')).arg(r, 2, 10, QChar('0')));
	m_ui.g->setText(tr("0x%0 (%1)").arg(g, 2, 16, QChar('0')).arg(g, 2, 10, QChar('0')));
	m_ui.b->setText(tr("0x%0 (%1)").arg(b, 2, 16, QChar('0')).arg(b, 2, 10, QChar('0')));
}