Merge pull request #2310 from slarosa/ml_icon

[log message] changing the message log icon in order to warning the user when a log message has been received

Author: NathanW2

images/images.qrc

@@ -394,6 +394,8 @@
         <file>themes/default/mIconZip.png</file>
         <file>themes/default/mIconZoom.svg</file>
         <file>themes/default/mMapserverExport.png</file>
+        <file>themes/default/mMessageLog.svg</file>
+        <file>themes/default/mMessageLogRead.svg</file>
         <file>themes/default/north_arrow.png</file>
         <file>themes/default/pie-chart.png</file>
         <file>themes/default/plugin.png</file>
@@ -504,7 +506,6 @@
         <file>themes/default/cadtools/parallel.png</file>
         <file>themes/default/cadtools/perpendicular.png</file>
         <file>themes/default/mIconSuccess.png</file>
-        <file>themes/default/bubble.svg</file>
         <file>themes/default/mIconClear.png</file>
         <file>flags/zh.png</file>
         <file>themes/default/mIconPaintEffects.svg</file>

images/themes/default/mMessageLog.svg

@@ -705,6 +705,8 @@ QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, QWidget * parent,
   mLogDock->hide();
   connect( mMessageButton, SIGNAL( toggled( bool ) ), mLogDock, SLOT( setVisible( bool ) ) );
   connect( mLogDock, SIGNAL( visibilityChanged( bool ) ), mMessageButton, SLOT( setChecked( bool ) ) );
+  connect( QgsMessageLog::instance(), SIGNAL( messageReceived( bool ) ), this, SLOT( toggleLogMessageIcon( bool ) ) );
+  connect( mMessageButton, SIGNAL( toggled( bool ) ), this, SLOT( toggleLogMessageIcon( bool ) ) );
   mVectorLayerTools = new QgsGuiVectorLayerTools();
 
   // Init the editor widget types
@@ -2009,7 +2011,7 @@ void QgisApp::createStatusBar()
 
   mMessageButton = new QToolButton( statusBar() );
   mMessageButton->setAutoRaise( true );
-  mMessageButton->setIcon( QgsApplication::getThemeIcon( "bubble.svg" ) );
+  mMessageButton->setIcon( QgsApplication::getThemeIcon( "/mMessageLogRead.svg" ) );
   mMessageButton->setToolTip( tr( "Messages" ) );
   mMessageButton->setWhatsThis( tr( "Messages" ) );
   mMessageButton->setToolButtonStyle( Qt::ToolButtonTextBesideIcon );
@@ -2539,6 +2541,18 @@ QgsMessageBar* QgisApp::messageBar()
   return mInfoBar;
 }
 
+void QgisApp::toggleLogMessageIcon( bool hasLogMessage )
+{
+  if ( hasLogMessage && !mLogDock->isVisible() )
+  {
+    mMessageButton->setIcon( QgsApplication::getThemeIcon( "/mMessageLog.svg" ) );
+  }
+  else
+  {
+    mMessageButton->setIcon( QgsApplication::getThemeIcon( "/mMessageLogRead.svg" ) );
+  }
+}
+
 void QgisApp::addUserInputWidget( QWidget *widget )
 {
   mUserInputDockWidget->addUserInputWidget( widget );

images/themes/default/bubble.svg renamed to images/themes/default/mMessageLogRead.svg

@@ -1041,6 +1041,9 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     //! map layers changed
     void showMapCanvas();
 
+    //! change log message icon in statusbar
+    void toggleLogMessageIcon( bool hasLogMessage );
+
     /** Called when some layer's editing mode was toggled on/off */
     void layerEditStateChanged();
 

src/app/qgisapp.cpp

@@ -50,6 +50,10 @@ void QgsMessageLog::logMessage( QString message, QString tag, QgsMessageLog::Mes
 void QgsMessageLog::emitMessage( QString message, QString tag, QgsMessageLog::MessageLevel level )
 {
   emit messageReceived( message, tag, level );
+  if ( level != QgsMessageLog::INFO )
+  {
+    emit messageReceived( true );
+  }
 }
 
 QgsMessageLogConsole::QgsMessageLogConsole()

src/app/qgisapp.h

@@ -48,6 +48,8 @@ class CORE_EXPORT QgsMessageLog : public QObject
   signals:
     void messageReceived( QString message, QString tag, QgsMessageLog::MessageLevel level );
 
+    void messageReceived( bool received );
+
   private:
     QgsMessageLog();