# HG changeset patch
# User Hasan Yavuz ÖZDERYA <hy@ozderya.net>
# Date 2015-05-28 09:57:27
# Node ID f918be7cd46f3397800985c7be1425d3a6186ca7
# Parent  4cc4bd170d6a80d347ee7ae35465235947138b4a

added log widget for error and warning messages

diff --git a/main.cpp b/main.cpp
--- a/main.cpp
+++ b/main.cpp
@@ -19,12 +19,24 @@
 
 #include "mainwindow.h"
 #include <QApplication>
+#include <QtGlobal>
+
+MainWindow* pMainWindow;
+
+void messageHandler(QtMsgType type, const QMessageLogContext &context,
+                    const QString &msg)
+{
+    pMainWindow->messageHandler(type, context, msg);
+}
 
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
     MainWindow w;
+    pMainWindow = &w;
+
+    qInstallMessageHandler(messageHandler);
+
     w.show();
-
     return a.exec();
 }
diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -28,6 +28,8 @@
 #include <qwt_plot.h>
 #include <limits.h>
 #include <cmath>
+#include <iostream>
+
 #include "utils.h"
 #include "version.h"
 
@@ -598,3 +600,11 @@ void MainWindow::onExportCsv()
         }
     }
 }
+
+void MainWindow::messageHandler(QtMsgType type,
+                                const QMessageLogContext &context,
+                                const QString &msg)
+{
+    ui->ptLog->appendPlainText(msg);
+    std::cerr << msg.toStdString() << std::endl;
+}
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -29,6 +29,7 @@
 #include <QSignalMapper>
 #include <QTimer>
 #include <QColor>
+#include <QtGlobal>
 #include <qwt_plot_curve.h>
 
 #include "portcontrol.h"
@@ -46,6 +47,9 @@ public:
     explicit MainWindow(QWidget *parent = 0);
     ~MainWindow();
 
+    void messageHandler(QtMsgType type, const QMessageLogContext &context,
+                        const QString &msg);
+
 private:
     enum NumberFormat
     {
diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -16,7 +16,7 @@
   <widget class="QWidget" name="centralWidget">
    <layout class="QVBoxLayout" name="verticalLayout_2">
     <item>
-     <widget class="QwtPlot" name="plot" native="true">
+     <widget class="QwtPlot" name="plot">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
         <horstretch>0</horstretch>
@@ -304,6 +304,35 @@
         </item>
        </layout>
       </widget>
+      <widget class="QWidget" name="tabLog">
+       <attribute name="title">
+        <string>Log</string>
+       </attribute>
+       <attribute name="toolTip">
+        <string>Error and Warning Messages</string>
+       </attribute>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <property name="leftMargin">
+         <number>4</number>
+        </property>
+        <property name="topMargin">
+         <number>4</number>
+        </property>
+        <property name="rightMargin">
+         <number>4</number>
+        </property>
+        <property name="bottomMargin">
+         <number>4</number>
+        </property>
+        <item>
+         <widget class="QPlainTextEdit" name="ptLog">
+          <property name="readOnly">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
      </widget>
     </item>
    </layout>
@@ -392,7 +421,7 @@
  <customwidgets>
   <customwidget>
    <class>QwtPlot</class>
-   <extends>QWidget</extends>
+   <extends>QFrame</extends>
    <header>qwt_plot.h</header>
    <container>1</container>
   </customwidget>