debugger: speed up logging by collecting bigger chunks

Change-Id: Ie2171e0afdc0e3296f57974b1e4e5ee952658626
Reviewed-by: hjk <qthjk@ovi.com>

1 files changed, 20 insertions, 4 deletions

diff --git a/src/plugins/debugger/logwindow.cpp b/src/plugins/debugger/logwindow.cpp
index 74dd0d5473..4329b507c0 100644
--- a/src/plugins/debugger/logwindow.cpp
+++ b/src/plugins/debugger/logwindow.cpp
@@ -394,6 +394,8 @@ LogWindow::LogWindow(QWidget *parent)
     connect(m_inputText, SIGNAL(executeLineRequested()),
         SLOT(executeLine()));
 
+    connect(&m_outputTimer, SIGNAL(timeout()), SLOT(doOutput()));
+
     setMinimumHeight(60);
 }
 
@@ -414,9 +416,6 @@ void LogWindow::showOutput(int channel, const QString &output)
     if (output.isEmpty())
         return;
 
-    QTextCursor cursor = m_combinedText->textCursor();
-    const bool atEnd = cursor.atEnd();
-
     const QChar cchar = charForChannel(channel);
     const QChar nchar = QLatin1Char('\n');
 
@@ -445,7 +444,24 @@ void LogWindow::showOutput(int channel, const QString &output)
         }
         pos = nnpos + 1;
     }
-    m_combinedText->append(out);
+    if (!out.endsWith(nchar))
+        out.append(nchar);
+
+    m_queuedOutput.append(out);
+    m_outputTimer.setSingleShot(true);
+    m_outputTimer.start(80);
+}
+
+void LogWindow::doOutput()
+{
+    if (m_queuedOutput.isEmpty())
+        return;
+
+    QTextCursor cursor = m_combinedText->textCursor();
+    const bool atEnd = cursor.atEnd();
+
+    m_combinedText->append(m_queuedOutput);
+    m_queuedOutput.clear();
 
     if (atEnd) {
         cursor.movePosition(QTextCursor::End);