1/* Copyright (c) 2013-2015 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "MessagePainter.h"
 7
 8#include <QPainter>
 9
10#include <QDebug>
11
12extern "C" {
13#include "gba/video.h"
14}
15
16using namespace QGBA;
17
18MessagePainter::MessagePainter(QObject* parent)
19	: QObject(parent)
20	, m_messageTimer(this)
21{
22	m_messageFont.setFamily("Source Code Pro");
23	m_messageFont.setStyleHint(QFont::Monospace);
24	m_messageFont.setPixelSize(13);
25	connect(&m_messageTimer, SIGNAL(timeout()), this, SLOT(clearMessage()));
26	m_messageTimer.setSingleShot(true);
27	m_messageTimer.setInterval(5000);
28
29	clearMessage();
30}
31
32void MessagePainter::resize(const QSize& size, bool lockAspectRatio) {
33	int w = size.width();
34	int h = size.height();
35	int drawW = w;
36	int drawH = h;
37	if (lockAspectRatio) {
38		if (w * 2 > h * 3) {
39			drawW = h * 3 / 2;
40		} else if (w * 2 < h * 3) {
41			drawH = w * 2 / 3;
42		}
43	}
44	m_world.reset();
45	m_world.translate((w - drawW) / 2, (h - drawH) / 2);
46	m_world.scale(qreal(drawW) / VIDEO_HORIZONTAL_PIXELS, qreal(drawH) / VIDEO_VERTICAL_PIXELS);
47	m_message.prepare(m_world, m_messageFont);
48}
49
50void MessagePainter::paint(QPainter* painter) {
51	painter->setWorldTransform(m_world);
52	painter->setRenderHint(QPainter::Antialiasing);
53	painter->setFont(m_messageFont);
54	painter->setPen(Qt::black);
55	painter->translate(1, VIDEO_VERTICAL_PIXELS - m_messageFont.pixelSize() - 1);
56	const static int ITERATIONS = 11;
57	for (int i = 0; i < ITERATIONS; ++i) {
58		painter->save();
59		painter->translate(cos(i * 2.0 * M_PI / ITERATIONS) * 0.8, sin(i * 2.0 * M_PI / ITERATIONS) * 0.8);
60		painter->drawStaticText(0, 0, m_message);
61		painter->restore();
62	}
63	painter->setPen(Qt::white);
64	painter->drawStaticText(0, 0, m_message);
65}
66
67void MessagePainter::showMessage(const QString& message) {
68	m_message.setText(message);
69	m_message.prepare(m_world, m_messageFont);
70	m_messageTimer.stop();
71	m_messageTimer.start();
72}
73
74void MessagePainter::clearMessage() {
75	m_message.setText(QString());
76	m_messageTimer.stop();
77}