1/* Copyright (c) 2013-2014 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 "KeyEditor.h"
  7
  8#include "GamepadAxisEvent.h"
  9#include "GamepadButtonEvent.h"
 10
 11#include <QKeyEvent>
 12
 13using namespace QGBA;
 14
 15KeyEditor::KeyEditor(QWidget* parent)
 16	: QLineEdit(parent)
 17	, m_direction(GamepadAxisEvent::NEUTRAL)
 18	, m_key(-1)
 19	, m_axis(-1)
 20	, m_button(false)
 21{
 22	setAlignment(Qt::AlignCenter);
 23}
 24
 25void KeyEditor::setValue(int key) {
 26	m_key = key;
 27	if (m_button) {
 28		updateButtonText();
 29	} else {
 30		setText(QKeySequence(key).toString(QKeySequence::NativeText));
 31	}
 32	emit valueChanged(key);
 33}
 34
 35void KeyEditor::setValueKey(int key) {
 36	m_button = false;
 37	setValue(key);
 38}
 39
 40void KeyEditor::setValueButton(int button) {
 41	m_button = true;
 42	setValue(button);
 43}
 44
 45void KeyEditor::setValueAxis(int axis, int32_t value) {
 46	m_button = true;
 47	m_axis = axis;
 48	m_direction = value < 0 ? GamepadAxisEvent::NEGATIVE : GamepadAxisEvent::POSITIVE;
 49	updateButtonText();
 50	emit axisChanged(axis, m_direction);
 51}
 52
 53void KeyEditor::clearButton() {
 54	m_button = true;
 55	setValue(-1);
 56}
 57
 58void KeyEditor::clearAxis() {
 59	m_button = true;
 60	m_axis = -1;
 61	m_direction = GamepadAxisEvent::NEUTRAL;
 62	updateButtonText();
 63	emit axisChanged(m_axis, m_direction);
 64}
 65
 66QSize KeyEditor::sizeHint() const {
 67	QSize hint = QLineEdit::sizeHint();
 68	hint.setWidth(40);
 69	return hint;
 70}
 71
 72void KeyEditor::keyPressEvent(QKeyEvent* event) {
 73	if (!m_button) {
 74		setValue(event->key());
 75	}
 76	event->accept();
 77}
 78
 79bool KeyEditor::event(QEvent* event) {
 80	if (!m_button) {
 81		return QWidget::event(event);
 82	}
 83	if (event->type() == GamepadButtonEvent::Down()) {
 84		setValueButton(static_cast<GamepadButtonEvent*>(event)->value());
 85		event->accept();
 86		return true;
 87	}
 88	if (event->type() == GamepadAxisEvent::Type()) {
 89		GamepadAxisEvent* gae = static_cast<GamepadAxisEvent*>(event);
 90		if (gae->isNew()) {
 91			setValueAxis(gae->axis(), gae->direction());
 92		}
 93		event->accept();
 94		return true;
 95	}
 96	return QWidget::event(event);
 97}
 98
 99void KeyEditor::updateButtonText() {
100	QStringList text;
101	if (m_key >= 0) {
102		text.append(QString::number(m_key));
103	}
104	if (m_direction != GamepadAxisEvent::NEUTRAL) {
105		text.append((m_direction == GamepadAxisEvent::NEGATIVE ? "-" : "+") + QString::number(m_axis));
106	}
107	if (text.isEmpty()) {
108		setText(tr("---"));
109	} else {
110		setText(text.join("/"));
111	}
112}