Search keyword highlighter

interface/src/AbstractLoggerInterface.h

@@ -21,7 +21,7 @@ public:
     inline void setExtraDebugging(bool debugging) { _extraDebugging = debugging; };
 
     virtual void addMessage(QString) = 0;
-    virtual QStringList getLogData(QString) = 0;
+    virtual QStringList getLogData() = 0;
     virtual void locateLog() = 0;
 
 signals:

interface/src/FileLogger.cpp

@@ -14,41 +14,22 @@
 #include <QDir>
 #include <QDesktopServices>
 
-FileLogger::FileLogger() : _lines(NULL) {
-    QHostAddress clientAddress = QHostAddress(getHostOrderLocalAddress());
-    QDateTime now = QDateTime::currentDateTime();
-
+FileLogger::FileLogger() : _logData(NULL) {
     _fileName = QStandardPaths::writableLocation(QStandardPaths::DataLocation);
     QDir logDir(_fileName);
     if (!logDir.exists(_fileName)) {
         logDir.mkdir(_fileName);
     }
 
+    QHostAddress clientAddress = QHostAddress(getHostOrderLocalAddress());
+    QDateTime now = QDateTime::currentDateTime();
     _fileName.append(QString("/hifi-log_%1_%2.txt").arg(clientAddress.toString(), now.toString("yyyy-MM-dd_hh.mm.ss")));
-    setExtraDebugging(false);
-}
-
-QStringList FileLogger::getLogData(QString searchText) {
-    if (searchText.isEmpty()) {
-        return _lines;
-    }
-
-    // wait for adding new log data while iterating over _lines
-    _mutex.lock();
-    QStringList filteredList;
-    for (int i = 0; i < _lines.size(); ++i) {
-        if (_lines[i].contains(searchText, Qt::CaseInsensitive)) {
-            filteredList.append(_lines[i]);
-        }
-    }
-    _mutex.unlock();
-    return filteredList;
 }
 
 void FileLogger::addMessage(QString message) {
     _mutex.lock();
     emit logReceived(message);
-    _lines.append(message);
+    _logData.append(message);
 
     QFile file(_fileName);
     if (file.open(QIODevice::WriteOnly | QIODevice::Append | QIODevice::Text)) {

interface/src/FileLogger.h

@@ -18,11 +18,11 @@ public:
     FileLogger();
 
     virtual void addMessage(QString);
-    virtual QStringList getLogData(QString);
+    virtual QStringList getLogData() { return _logData; };
     virtual void locateLog();
 
 private:
-    QStringList _lines;
+    QStringList _logData;
     QString _fileName;
     QMutex _mutex;
 

interface/src/ui/LogDialog.cpp

@@ -25,6 +25,7 @@ const int CHECKBOX_MARGIN = 12;
 const int CHECKBOX_WIDTH = 140;
 const int REVEAL_BUTTON_WIDTH = 122;
 const float INITIAL_HEIGHT_RATIO = 0.6f;
+const QString HIGHLIGHT_COLOR = "#3366CC";
 
 int qTextCursorMeta = qRegisterMetaType<QTextCursor>("QTextCursor");
 int qTextBlockMeta = qRegisterMetaType<QTextBlock>("QTextBlock");
@@ -91,12 +92,13 @@ void LogDialog::initControls() {
     _logTextBox = new QPlainTextEdit(this);
     _logTextBox->setReadOnly(true);
     _logTextBox->show();
+    _highlighter = new KeywordHighlighter(_logTextBox->document());
 
 }
 
 void LogDialog::showEvent(QShowEvent*)  {
     connect(_logger, SIGNAL(logReceived(QString)), this, SLOT(appendLogLine(QString)));
-    handleSearchTextChanged("");
+    showLogData();
 }
 
 void LogDialog::resizeEvent(QResizeEvent*) {
@@ -110,7 +112,9 @@ void LogDialog::resizeEvent(QResizeEvent*) {
 void LogDialog::appendLogLine(QString logLine) {
     if (isVisible()) {
         pthread_mutex_lock(& _mutex);
-        _logTextBox->appendHtml(logLine.simplified());
+        if (logLine.contains(_searchTerm, Qt::CaseInsensitive)) {
+            _logTextBox->appendPlainText(logLine.simplified());
+        }
         pthread_mutex_unlock(& _mutex);
         _logTextBox->ensureCursorVisible();
     }
@@ -129,13 +133,37 @@ void LogDialog::handleExtraDebuggingCheckbox(const int state) {
 }
 
 void LogDialog::handleSearchTextChanged(const QString searchText) {
+    _searchTerm = searchText;
+    _highlighter->keyword = searchText;
+    showLogData();
+}
 
+void LogDialog::showLogData() {
     _logTextBox->clear();
     pthread_mutex_lock(& _mutex);
-    QStringList _logData = _logger->getLogData(searchText);
+    QStringList _logData = _logger->getLogData();
     for (int i = 0; i < _logData.size(); ++i) {
         appendLogLine(_logData[i]);
     }
 
     pthread_mutex_unlock(& _mutex);
 }
+
+KeywordHighlighter::KeywordHighlighter(QTextDocument *parent) : QSyntaxHighlighter(parent), keywordFormat() {
+    keywordFormat.setForeground(QColor(HIGHLIGHT_COLOR));
+}
+
+void KeywordHighlighter::highlightBlock(const QString &text) {
+
+    if (keyword.isNull() || keyword.isEmpty()) {
+        return;
+    }
+
+    int 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);
+    }
+}

interface/src/ui/LogDialog.h

@@ -14,9 +14,25 @@
 #include <QLineEdit>
 #include <QPushButton>
 #include <QCheckBox>
+#include <QSyntaxHighlighter>
 
 #include "AbstractLoggerInterface.h"
 
+class KeywordHighlighter : public QSyntaxHighlighter {
+    Q_OBJECT
+
+public:
+    KeywordHighlighter(QTextDocument *parent = 0);
+    QString keyword;
+
+protected:
+    void highlightBlock(const QString &text);
+
+private:
+    QTextCharFormat keywordFormat;
+    
+};
+
 class LogDialog : public QDialog {
     Q_OBJECT
 
@@ -44,10 +60,13 @@ private:
     QPushButton* _revealLogButton;
     QPlainTextEdit* _logTextBox;
     pthread_mutex_t _mutex;
+    QString _searchTerm;
+    KeywordHighlighter* _highlighter;
 
     AbstractLoggerInterface* _logger;
 
     void initControls();
+    void showLogData();
 };
 
 #endif