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