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 "LogView.h"
  7
  8#include "LogController.h"
  9
 10#include <QTextBlock>
 11#include <QTextCursor>
 12
 13using namespace QGBA;
 14
 15LogView::LogView(LogController* log, QWidget* parent)
 16	: QWidget(parent)
 17	, m_lines(0)
 18	, m_lineLimit(DEFAULT_LINE_LIMIT)
 19{
 20	m_ui.setupUi(this);
 21	connect(m_ui.levelDebug, &QAbstractButton::toggled, [this](bool set) {
 22		setLevel(mLOG_DEBUG, set);
 23	});
 24	connect(m_ui.levelStub, &QAbstractButton::toggled, [this](bool set) {
 25		setLevel(mLOG_STUB, set);
 26	});
 27	connect(m_ui.levelInfo, &QAbstractButton::toggled, [this](bool set) {
 28		setLevel(mLOG_INFO, set);
 29	});
 30	connect(m_ui.levelWarn, &QAbstractButton::toggled, [this](bool set) {
 31		setLevel(mLOG_WARN, set);
 32	});
 33	connect(m_ui.levelError, &QAbstractButton::toggled, [this](bool set) {
 34		setLevel(mLOG_ERROR, set);
 35	});
 36	connect(m_ui.levelFatal, &QAbstractButton::toggled, [this](bool set) {
 37		setLevel(mLOG_FATAL, set);
 38	});
 39	connect(m_ui.levelGameError, &QAbstractButton::toggled, [this](bool set) {
 40		setLevel(mLOG_GAME_ERROR, set);
 41	});
 42	connect(m_ui.clear, SIGNAL(clicked()), this, SLOT(clear()));
 43	connect(m_ui.maxLines, SIGNAL(valueChanged(int)), this, SLOT(setMaxLines(int)));
 44	m_ui.maxLines->setValue(DEFAULT_LINE_LIMIT);
 45
 46	connect(log, SIGNAL(logPosted(int, int, const QString&)), this, SLOT(postLog(int, int, const QString&)));
 47	connect(log, SIGNAL(levelsSet(int)), this, SLOT(setLevels(int)));
 48	connect(log, &LogController::levelsEnabled, [this](int level) {
 49		bool s = blockSignals(true);
 50		setLevel(level, true);
 51		blockSignals(s);
 52	});
 53	connect(log, &LogController::levelsDisabled, [this](int level) {
 54		bool s = blockSignals(true);
 55		setLevel(level, false);
 56		blockSignals(s);
 57	});
 58	connect(this, SIGNAL(levelsEnabled(int)), log, SLOT(enableLevels(int)));
 59	connect(this, SIGNAL(levelsDisabled(int)), log, SLOT(disableLevels(int)));
 60}
 61
 62void LogView::postLog(int level, int category, const QString& log) {
 63	QString line = QString("[%1] %2:\t%3").arg(LogController::toString(level)).arg(mLogCategoryName(category)).arg(log);
 64	// TODO: Log to file
 65	m_pendingLines.enqueue(line);
 66	++m_lines;
 67	if (m_lines > m_lineLimit) {
 68		clearLine();
 69	}
 70	update();
 71}
 72
 73void LogView::clear() {
 74	m_ui.view->clear();
 75	m_lines = 0;
 76}
 77
 78void LogView::setLevels(int levels) {
 79	m_ui.levelDebug->setCheckState(levels & mLOG_DEBUG ? Qt::Checked : Qt::Unchecked);
 80	m_ui.levelStub->setCheckState(levels & mLOG_STUB ? Qt::Checked : Qt::Unchecked);
 81	m_ui.levelInfo->setCheckState(levels & mLOG_INFO ? Qt::Checked : Qt::Unchecked);
 82	m_ui.levelWarn->setCheckState(levels & mLOG_WARN ? Qt::Checked : Qt::Unchecked);
 83	m_ui.levelError->setCheckState(levels & mLOG_ERROR ? Qt::Checked : Qt::Unchecked);
 84	m_ui.levelFatal->setCheckState(levels & mLOG_FATAL ? Qt::Checked : Qt::Unchecked);
 85	m_ui.levelGameError->setCheckState(levels & mLOG_GAME_ERROR ? Qt::Checked : Qt::Unchecked);
 86}
 87
 88void LogView::setLevel(int level, bool set) {
 89	if (level & mLOG_DEBUG) {
 90		m_ui.levelDebug->setCheckState(set ? Qt::Checked : Qt::Unchecked);
 91	}
 92	if (level & mLOG_STUB) {
 93		m_ui.levelStub->setCheckState(set ? Qt::Checked : Qt::Unchecked);
 94	}
 95	if (level & mLOG_INFO) {
 96		m_ui.levelInfo->setCheckState(set ? Qt::Checked : Qt::Unchecked);
 97	}
 98	if (level & mLOG_WARN) {
 99		m_ui.levelWarn->setCheckState(set ? Qt::Checked : Qt::Unchecked);
100	}
101	if (level & mLOG_ERROR) {
102		m_ui.levelError->setCheckState(set ? Qt::Checked : Qt::Unchecked);
103	}
104	if (level & mLOG_FATAL) {
105		m_ui.levelFatal->setCheckState(set ? Qt::Checked : Qt::Unchecked);
106	}
107	if (level & mLOG_GAME_ERROR) {
108		m_ui.levelGameError->setCheckState(set ? Qt::Checked : Qt::Unchecked);
109	}
110
111	if (set) {
112		emit levelsEnabled(level);
113	} else {
114		emit levelsDisabled(level);
115	}
116}
117
118void LogView::setMaxLines(int limit) {
119	m_lineLimit = limit;
120	while (m_lines > m_lineLimit) {
121		clearLine();
122	}
123}
124
125void LogView::paintEvent(QPaintEvent* event) {
126	while (!m_pendingLines.isEmpty()) {
127		m_ui.view->appendPlainText(m_pendingLines.dequeue());
128	}
129	QWidget::paintEvent(event);
130}
131
132void LogView::clearLine() {
133	if (m_ui.view->document()->isEmpty()) {
134		m_pendingLines.dequeue();
135	} else {
136		QTextCursor cursor(m_ui.view->document());
137		cursor.setPosition(0);
138		cursor.select(QTextCursor::BlockUnderCursor);
139		cursor.removeSelectedText();
140		cursor.deleteChar();
141	}
142	--m_lines;
143}