////  BaseLogDialog.cpp//  interface/src/ui////  Created by Clement Brisset on 1/31/17.//  Copyright 2017 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "BaseLogDialog.h" #include <QDir>#include <QLineEdit>#include <QPlainTextEdit>#include <QTextCursor>#include <QPushButton> #include <PathUtils.h> const int TOP_BAR_HEIGHT = 124;const int INITIAL_WIDTH = 800;const int INITIAL_HEIGHT = 480;const int MINIMAL_WIDTH = 780;const int SEARCH_BUTTON_WIDTH = 32;const int SEARCH_TOGGLE_BUTTON_WIDTH = 50;const int SEARCH_TEXT_WIDTH = 240;const int TIME_STAMP_LENGTH = 16;const int FONT_WEIGHT = 75;const QColor HIGHLIGHT_COLOR = QColor("#00B4EF");const QColor BOLD_COLOR = QColor("#1080B8");const QString BOLD_PATTERN = "\\[\\d*\\/.*:\\d*:\\d*\\]"; BaseLogDialog::BaseLogDialog(QWidget* parent) : QDialog(parent, Qt::Window) {    setWindowTitle("Base Log");    setAttribute(Qt::WA_DeleteOnClose);     initControls();     resize(INITIAL_WIDTH, INITIAL_HEIGHT);    setMinimumWidth(MINIMAL_WIDTH);} BaseLogDialog::~BaseLogDialog() {    deleteLater();} void BaseLogDialog::initControls() {    _searchButton = new QPushButton(QIcon(":/styles/search.svg"), "", this);    // set object name for css styling    _searchButton->setObjectName("searchButton");    _leftPad = 8;    _searchButton->setGeometry(_leftPad, ELEMENT_MARGIN, SEARCH_BUTTON_WIDTH, ELEMENT_HEIGHT);    _leftPad += SEARCH_BUTTON_WIDTH;    _searchButton->show();    connect(_searchButton, &QPushButton::clicked, this, &BaseLogDialog::handleSearchButton);     _searchTextBox = new QLineEdit(this);    _searchTextBox->setGeometry(_leftPad, ELEMENT_MARGIN, SEARCH_TEXT_WIDTH, ELEMENT_HEIGHT);    _leftPad += SEARCH_TEXT_WIDTH + BUTTON_MARGIN;    _searchTextBox->show();    connect(_searchTextBox, &QLineEdit::textChanged, this, &BaseLogDialog::handleSearchTextChanged);    connect(_searchTextBox, &QLineEdit::returnPressed, this, &BaseLogDialog::toggleSearchNext);     _searchPrevButton = new QPushButton(this);    _searchPrevButton->setObjectName("searchPrevButton");    _searchPrevButton->setGeometry(_leftPad, ELEMENT_MARGIN, SEARCH_TOGGLE_BUTTON_WIDTH, ELEMENT_HEIGHT);    _searchPrevButton->setText("Prev");    _leftPad += SEARCH_TOGGLE_BUTTON_WIDTH + BUTTON_MARGIN;    _searchPrevButton->show();    connect(_searchPrevButton, &QPushButton::clicked, this, &BaseLogDialog::toggleSearchPrev);     _searchNextButton = new QPushButton(this);    _searchNextButton->setObjectName("searchNextButton");    _searchNextButton->setGeometry(_leftPad, ELEMENT_MARGIN, SEARCH_TOGGLE_BUTTON_WIDTH, ELEMENT_HEIGHT);    _searchNextButton->setText("Next");    _leftPad += SEARCH_TOGGLE_BUTTON_WIDTH + CHECKBOX_MARGIN;    _searchNextButton->show();    connect(_searchNextButton, &QPushButton::clicked, this, &BaseLogDialog::toggleSearchNext);     _logTextBox = new QPlainTextEdit(this);    _logTextBox->setFont(QFont("monospace"));    _logTextBox->setReadOnly(true);    _logTextBox->show();    _highlighter = new Highlighter(_logTextBox->document());    connect(_logTextBox, &QPlainTextEdit::selectionChanged, this, &BaseLogDialog::updateSelection);} void BaseLogDialog::showEvent(QShowEvent* event) {    showLogData();} void BaseLogDialog::resizeEvent(QResizeEvent* event) {    _logTextBox->setGeometry(0, TOP_BAR_HEIGHT, width(), height() - TOP_BAR_HEIGHT);} void BaseLogDialog::appendLogLine(QString logLine) {    if (logLine.contains(_searchTerm, Qt::CaseInsensitive)) {        int indexToBold = _logTextBox->document()->characterCount();        _logTextBox->appendPlainText(logLine.trimmed());        _highlighter->setBold(indexToBold);    }} void BaseLogDialog::handleSearchButton() {    _searchTextBox->setFocus();} void BaseLogDialog::handleSearchTextChanged(QString searchText) {    QTextCursor cursor = _logTextBox->textCursor();     if (cursor.hasSelection()) {        QString selectedTerm = cursor.selectedText();        if (selectedTerm == searchText) {            return;        }    }     cursor.setPosition(0, QTextCursor::MoveAnchor);    _logTextBox->setTextCursor(cursor);    bool foundTerm = _logTextBox->find(searchText);     if (!foundTerm) {        cursor.movePosition(QTextCursor::End, QTextCursor::MoveAnchor);        _logTextBox->setTextCursor(cursor);    }     _searchTerm = searchText;    _highlighter->keyword = searchText;    _highlighter->rehighlight();} void BaseLogDialog::clearSearch() {    _searchTextBox->setText("");} void BaseLogDialog::toggleSearchPrev() {    QTextCursor searchCursor = _logTextBox->textCursor();    if (searchCursor.hasSelection()) {        QString selectedTerm = searchCursor.selectedText();        _logTextBox->find(selectedTerm, QTextDocument::FindBackward);    } else {        handleSearchTextChanged(_searchTextBox->text());    }} void BaseLogDialog::toggleSearchNext() {    QTextCursor searchCursor = _logTextBox->textCursor();    if (searchCursor.hasSelection()) {        QString selectedTerm = searchCursor.selectedText();        _logTextBox->find(selectedTerm);    } else {        handleSearchTextChanged(_searchTextBox->text());    }} void BaseLogDialog::showLogData() {    _logTextBox->clear();    _logTextBox->appendPlainText(getCurrentLog());    _logTextBox->ensureCursorVisible();    _highlighter->rehighlight();} void BaseLogDialog::updateSelection() {    QTextCursor cursor = _logTextBox->textCursor();    if (cursor.hasSelection()) {        QString selectionTerm = cursor.selectedText();        if (QString::compare(selectionTerm, _searchTextBox->text(), Qt::CaseInsensitive) != 0) {            _searchTextBox->setText(selectionTerm);        }    }} Highlighter::Highlighter(QTextDocument* parent) : QSyntaxHighlighter(parent) {    boldFormat.setFontWeight(FONT_WEIGHT);    boldFormat.setForeground(BOLD_COLOR);    keywordFormat.setFontWeight(FONT_WEIGHT);    keywordFormat.setForeground(HIGHLIGHT_COLOR);} void Highlighter::highlightBlock(const QString& text) {    QRegExp expression(BOLD_PATTERN);     int index = text.indexOf(expression, 0);     while (index >= 0) {        int length = expression.matchedLength();        setFormat(index, length, boldFormat);        index = text.indexOf(expression, index + length);    }     if (keyword.isNull() || keyword.isEmpty()) {        return;    }     index = text.indexOf(keyword, 0, Qt::CaseInsensitive);    int length = keyword.length();     while (index >= 0) {        setFormat(index, length, keywordFormat);        index = text.indexOf(keyword, index + length, Qt::CaseInsensitive);    }} void Highlighter::setBold(int indexToBold) {    setFormat(indexToBold, TIME_STAMP_LENGTH, boldFormat);}