From b606034eda1a37ae781e073550247f2ed061c4bc Mon Sep 17 00:00:00 2001
From: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Date: Fri, 17 Jan 2014 19:11:57 +0100
Subject: [PATCH] whitespace fixes

remove trailing spaces & expand tabs.

Change-Id: I8aea7b7f0fbf0540769a9aa5cf0487356bb83f72
Reviewed-by: Martin Smith <martin.smith@digia.com>
---
 demos/qtdemo/examplecontent.cpp               |  2 +-
 demos/qtdemo/menumanager.cpp                  |  2 +-
 demos/qtdemo/xml/examples.xml                 |  2 +-
 doc/src/development/activeqt-idc.qdoc         |  6 ++--
 doc/src/development/activeqt-testcon.qdoc     | 14 ++++----
 doc/src/development/debug.qdoc                |  4 +--
 doc/src/development/moc.qdoc                  |  2 +-
 doc/src/development/qmsdev.qdoc               | 14 ++++----
 .../contentspropagation/customwidget.py       | 28 +++++++--------
 .../contentspropagation/standardwidgets.py    | 32 ++++++++---------
 doc/src/diagrams/dependencies.lout            | 28 +++++++--------
 doc/src/diagrams/programs/mdiarea.py          | 22 ++++++------
 doc/src/diagrams/programs/qpen-dashpattern.py | 34 +++++++++----------
 .../desktop-integration.qdoc                  |  2 +-
 doc/src/frameworks-technologies/unicode.qdoc  |  2 +-
 doc/src/getting-started/known-issues.qdoc     |  2 +-
 doc/src/graphics.qdoc                         |  8 ++---
 doc/src/howtos/exceptionsafety.qdoc           |  4 +--
 doc/src/howtos/session.qdoc                   |  8 ++---
 doc/src/howtos/sharedlibrary.qdoc             |  8 ++---
 doc/src/legal/trademarks.qdoc                 | 10 +++---
 doc/src/platforms/emb-opengl.qdocinc          |  6 ++--
 doc/src/platforms/wince-signing.qdoc          |  6 ++--
 .../snippets/accessibilityfactorysnippet.cpp  |  2 +-
 .../snippets/accessibilityslidersnippet.cpp   |  4 +--
 doc/src/snippets/audio/main.cpp               |  4 +--
 doc/src/snippets/code/doc_src_fdl.qdoc        | 18 +++++-----
 doc/src/snippets/code/doc_src_lgpl.qdoc       |  2 +-
 doc/src/snippets/code/doc_src_licenses.qdoc   |  6 ++--
 doc/src/snippets/code/doc_src_moc.cpp         |  2 +-
 ..._assistant_compat_lib_qassistantclient.cpp |  4 +--
 .../snippets/dockwidgets/Resources/titles.txt | 14 ++++----
 .../snippets/modelview-subclasses/window.cpp  |  2 +-
 .../snippets/persistentindexes/mainwindow.cpp |  2 +-
 doc/src/snippets/qabstractsliderisnippet.cpp  |  2 +-
 doc/src/snippets/qsvgwidget/spheres.svg       |  2 +-
 doc/src/snippets/qsvgwidget/sunflower.svg     | 26 +++++++-------
 .../snippets/qtablewidget-dnd/mainwindow.cpp  |  2 +-
 38 files changed, 169 insertions(+), 169 deletions(-)

diff --git a/demos/qtdemo/examplecontent.cpp b/demos/qtdemo/examplecontent.cpp
index e688ca1d..874a84c0 100644
--- a/demos/qtdemo/examplecontent.cpp
+++ b/demos/qtdemo/examplecontent.cpp
@@ -93,7 +93,7 @@ QString ExampleContent::loadDescription()
     if (paragraphs.length() < 1 && Colors::verbose)
         qDebug() << "- ExampleContent::loadDescription(): Could not load description:"
                  << MenuManager::instance()->info[this->name]["docfile"];
-    QString description = Colors::contentColor + QLatin1String(""); 
+    QString description = Colors::contentColor + QLatin1String("");
     //QLatin1String("Could not load description. Ensure that the documentation for Qt is built."); // QTBUG-12522: If there is no description why show an error to the user when qDebug above communications the issue (if it is indeed an issue at all) when demos are built?
     for (int p = 0; p < int(paragraphs.length()); ++p) {
         description = this->extractTextFromParagraph(paragraphs.item(p));
diff --git a/demos/qtdemo/menumanager.cpp b/demos/qtdemo/menumanager.cpp
index fb0d604d..0a1a3326 100644
--- a/demos/qtdemo/menumanager.cpp
+++ b/demos/qtdemo/menumanager.cpp
@@ -344,7 +344,7 @@ void MenuManager::launchExample(const QString &name)
 #ifdef Q_OS_WIN
     //make sure it finds the dlls on windows
     QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
-    env.insert(QLatin1String("PATH"), QLibraryInfo::location(QLibraryInfo::BinariesPath) 
+    env.insert(QLatin1String("PATH"), QLibraryInfo::location(QLibraryInfo::BinariesPath)
                + QLatin1Char(';') + env.value(QLatin1String("Path")));
     process->setProcessEnvironment(env);
 #endif
diff --git a/demos/qtdemo/xml/examples.xml b/demos/qtdemo/xml/examples.xml
index 766e3145..dadfb52c 100644
--- a/demos/qtdemo/xml/examples.xml
+++ b/demos/qtdemo/xml/examples.xml
@@ -276,5 +276,5 @@
     <example filename="qobjectxmlmodel" name="QObjectXmlModel" />
     <example filename="filetree" name="File Tree" />
     <example filename="schema" name="XML Schema Validation" />
-  </category>  
+  </category>
 </categories>
diff --git a/doc/src/development/activeqt-idc.qdoc b/doc/src/development/activeqt-idc.qdoc
index 73318aaa..1ebd4d14 100644
--- a/doc/src/development/activeqt-idc.qdoc
+++ b/doc/src/development/activeqt-idc.qdoc
@@ -25,7 +25,7 @@
 **
 ****************************************************************************/
 
-/*! 
+/*!
     \page activeqt-idc.html
     \title IDC - The Interface Description Compiler (ActiveQt)
 
@@ -34,7 +34,7 @@
     \keyword idc
 
     The IDC tool is part of the ActiveQt build system and makes
-    it possible to turn any Qt binary into a full COM object server 
+    it possible to turn any Qt binary into a full COM object server
     with only a few lines of code.
 
     IDC understands the following command line parameters:
@@ -62,7 +62,7 @@
     \endtable
 
     It is usually never necessary to invoke IDC manually, as the \c
-    qmake build system takes care of adding the required post 
+    qmake build system takes care of adding the required post
     processing steps to the build process. See the  \l{ActiveQt}
     documentation for details.
 */
diff --git a/doc/src/development/activeqt-testcon.qdoc b/doc/src/development/activeqt-testcon.qdoc
index 411f1c97..51c57481 100644
--- a/doc/src/development/activeqt-testcon.qdoc
+++ b/doc/src/development/activeqt-testcon.qdoc
@@ -25,7 +25,7 @@
 **
 ****************************************************************************/
 
-/*! 
+/*!
     \page activeqt-testcon.html
     \title testcon - An ActiveX Test Container (ActiveQt)
 
@@ -39,17 +39,17 @@
     will log information about events and property changes as well
     as debug output in the log window.
 
-    Parts of the code use internals of the Qt meta object and ActiveQt 
+    Parts of the code use internals of the Qt meta object and ActiveQt
     framework and are not recommended to be used in application code.
 
-    Use the application to view the slots, signals and porperties 
-    available through the QAxWidget class when instantiated with a 
+    Use the application to view the slots, signals and porperties
+    available through the QAxWidget class when instantiated with a
     certain ActiveX, and to test ActiveX controls you implement or
     want to use in your Qt application.
 
-    The application can load and execute script files in JavaScript, 
-    VBScript, Perl and Python (if installed) to automate the controls 
-    loaded. Example script files using the QAxWidget2 class are available 
+    The application can load and execute script files in JavaScript,
+    VBScript, Perl and Python (if installed) to automate the controls
+    loaded. Example script files using the QAxWidget2 class are available
     in the \c scripts subdirectory.
 
     Note that the qmake project of this example includes a resource file
diff --git a/doc/src/development/debug.qdoc b/doc/src/development/debug.qdoc
index 4f78b621..2538d0b7 100644
--- a/doc/src/development/debug.qdoc
+++ b/doc/src/development/debug.qdoc
@@ -47,9 +47,9 @@
     \section3 Debugging With/Without Frameworks
 
     The basic stuff you need to know about debug libraries and
-    frameworks is found at developer.apple.com in: 
+    frameworks is found at developer.apple.com in:
     \l{http://developer.apple.com/technotes/tn2004/tn2124.html#SECDEBUGLIB}
-    {Apple Technical Note TN2124}. 
+    {Apple Technical Note TN2124}.
 
     When you build Qt, frameworks are built by default, and inside the
     framework you will find both a release and a debug version (e.g.,
diff --git a/doc/src/development/moc.qdoc b/doc/src/development/moc.qdoc
index 86a766b5..e172c868 100644
--- a/doc/src/development/moc.qdoc
+++ b/doc/src/development/moc.qdoc
@@ -219,7 +219,7 @@
 
     \row
     \li \c{-Fdir}
-    
+
     \li Mac OS X. Add the framework directory \c{dir} to the head of
        the list of directories to be searched for header files. These
        directories are interleaved with those specified by -I options
diff --git a/doc/src/development/qmsdev.qdoc b/doc/src/development/qmsdev.qdoc
index 02cbeaac..c6ee6a77 100644
--- a/doc/src/development/qmsdev.qdoc
+++ b/doc/src/development/qmsdev.qdoc
@@ -25,19 +25,19 @@
 **
 ****************************************************************************/
 
-/* NOT DOCUMENTED ! 
+/* NOT DOCUMENTED !
   \page qmsdev.html
 
   \title The QMsDev Plugin
 
   The Visual Studio Integration Plugin is currently available only to users of
   Visual Studio 6. It offers simple ways of doing common tasks when writing a
-  Qt application. 
+  Qt application.
 
   \tableofcontents
 
   \section1 How to install the Visual Studio Integration Plugin
-   
+
   When you install Qt, the integration plugin should be installed for you,
   however, sometimes this does  not happen, so to install the integration
   plugin manually just carry out the following steps.
@@ -52,7 +52,7 @@
   Now the integration plugin should be installed. If this doesn't
   work, then contact Qt technical support giving details of
   what went wrong.
-  
+
   \section1 How to uninstall the Visual Studio Integration Plugin
 
   When you want to uninstall the integration plugin, just carry out the
@@ -64,7 +64,7 @@
   \endlist
 
   \section1 What can the Visual Studio Integration Plugin do?
-  
+
   The integration plugin adds the following options to Visual Studio:
 
   \list
@@ -78,7 +78,7 @@
   \endlist
 
   \section2 Using the 'New Qt Project' button
-  
+
   The 'New Qt Project' button allows you to create a simple Qt project
   ready for development. Simply fill in the form and if you select
   'Dialog' or 'Main Window' without MDI support then it will
@@ -142,7 +142,7 @@
   The 'Add MOC' button will add in the custom build step for the selected file
   so that it creates any needed MOC files and it will add these generated
   files to the project. All you need to do to use it is click on a file that
-  has Q_OBJECT and click the button. 
+  has Q_OBJECT and click the button.
 
   You only need to use this button if you added a file that has
   Q_OBJECT in it by hand, you don't need to use this if you used any
diff --git a/doc/src/diagrams/contentspropagation/customwidget.py b/doc/src/diagrams/contentspropagation/customwidget.py
index f64a2ab6..0ddf2b43 100755
--- a/doc/src/diagrams/contentspropagation/customwidget.py
+++ b/doc/src/diagrams/contentspropagation/customwidget.py
@@ -47,7 +47,7 @@ from PyQt4.QtGui import *
 class CustomWidget(QWidget):
 
     def __init__(self, parent, fake = False):
-    
+
         QWidget.__init__(self, parent)
         gradient = QLinearGradient(QPointF(0, 0), QPointF(100.0, 100.0))
         baseColor = QColor(0xa6, 0xce, 0x39, 0x7f)
@@ -56,7 +56,7 @@ class CustomWidget(QWidget):
         self.brush = QBrush(gradient)
         self.fake = fake
         self.fakeBrush = QBrush(Qt.red, Qt.DiagCrossPattern)
-        
+
         qtPath = QPainterPath()
         qtPath.setFillRule(Qt.OddEvenFill)
         qtPath.moveTo(-45.0, -20.0)
@@ -81,7 +81,7 @@ class CustomWidget(QWidget):
         self.path = qtPath
 
     def paintEvent(self, event):
-    
+
         painter = QPainter()
         painter.begin(self)
         painter.setRenderHint(QPainter.Antialiasing)
@@ -92,13 +92,13 @@ class CustomWidget(QWidget):
         painter.translate(60, 60)
         painter.drawPath(self.path)
         painter.end()
-    
+
     def sizeHint(self):
-    
+
         return QSize(120, 120)
-    
+
     def minimumSizeHint(self):
-    
+
         return QSize(120, 120)
 
 
@@ -108,16 +108,16 @@ if __name__ == "__main__":
         qt = sys.argv[1]
     except IndexError:
         qt = "4.1"
-    
+
     if qt != "4.0" and qt != "4.1":
         sys.stderr.write("Usage: %s [4.0|4.1]\n" % sys.argv[0])
         sys.exit(1)
-    
+
     app = QApplication(sys.argv)
     exec_dir = os.path.split(os.path.abspath(sys.argv[0]))[0]
     label = QLabel()
     label.setPixmap(QPixmap(os.path.join(exec_dir, "background.png")))
-    
+
     layout = QGridLayout()
     label.setLayout(layout)
     if qt == "4.0":
@@ -131,7 +131,7 @@ if __name__ == "__main__":
         caption.setAutoFillBackground(True)
         caption.setMargin(2)
         layout.addWidget(caption, 1, 0, Qt.AlignCenter | Qt.AlignTop)
-    
+
     if qt == "4.0":
         contentsWidget = CustomWidget(label)
         contentsWidget.setAttribute(Qt.WA_ContentsPropagated, True)
@@ -147,7 +147,7 @@ if __name__ == "__main__":
         caption.setAutoFillBackground(True)
         caption.setMargin(2)
         layout.addWidget(caption, 1, 1, Qt.AlignCenter | Qt.AlignTop)
-    
+
     if qt == "4.0":
         noBackgroundWidget = CustomWidget(label, fake = True)
         noBackgroundWidget.setAttribute(Qt.WA_NoBackground, True)
@@ -164,12 +164,12 @@ if __name__ == "__main__":
         caption.setAutoFillBackground(True)
         caption.setMargin(2)
         layout.addWidget(caption, 1, 2, Qt.AlignCenter | Qt.AlignTop)
-    
+
     if qt == "4.0":
         label.setWindowTitle("Qt 4.0: Painting Custom Widgets")
     elif qt == "4.1":
         label.setWindowTitle("Qt 4.1: Painting Custom Widgets")
-    
+
     label.resize(404, 160)
     label.show()
     sys.exit(app.exec_())
diff --git a/doc/src/diagrams/contentspropagation/standardwidgets.py b/doc/src/diagrams/contentspropagation/standardwidgets.py
index cbaa69bf..e832ce29 100755
--- a/doc/src/diagrams/contentspropagation/standardwidgets.py
+++ b/doc/src/diagrams/contentspropagation/standardwidgets.py
@@ -51,7 +51,7 @@ def createGroupBox(parent, attributes = None, fill = False, fake = False):
     backgroundLayout = QVBoxLayout()
     backgroundLayout.setMargin(4)
     background.setLayout(backgroundLayout)
-    
+
     groupBox = QGroupBox("&Options")
     layout = QGridLayout()
     groupBox.setLayout(layout)
@@ -61,30 +61,30 @@ def createGroupBox(parent, attributes = None, fill = False, fake = False):
     checkedBox.setChecked(True)
     layout.addWidget(checkedBox, 1, 0)
     layout.addWidget(QCheckBox("From &start of text"), 1, 1)
-    
+
     backgroundLayout.addWidget(groupBox)
-    
+
     if attributes:
         for attr in attributes:
             groupBox.setAttribute(attr, True)
             if not fake:
                 background.setAttribute(attr, True)
-    
+
     groupBox.setAutoFillBackground(fill)
     background.setAutoFillBackground(fill)
-    
+
     return background
-    
+
 class CustomWidget(QWidget):
 
     def __init__(self, parent, fake = False):
-    
+
         QWidget.__init__(self, parent)
         self.fake = fake
         self.fakeBrush = QBrush(Qt.red, Qt.DiagCrossPattern)
 
     def paintEvent(self, event):
-    
+
         painter = QPainter()
         painter.begin(self)
         painter.setRenderHint(QPainter.Antialiasing)
@@ -100,16 +100,16 @@ if __name__ == "__main__":
         qt = sys.argv[1]
     except IndexError:
         qt = "4.1"
-    
+
     if qt != "4.0" and qt != "4.1":
         sys.stderr.write("Usage: %s [4.0|4.1]\n" % sys.argv[0])
         sys.exit(1)
-    
+
     app = QApplication(sys.argv)
     exec_dir = os.path.split(os.path.abspath(sys.argv[0]))[0]
     label = QLabel()
     label.setPixmap(QPixmap(os.path.join(exec_dir, "lightbackground.png")))
-    
+
     layout = QGridLayout()
     label.setLayout(layout)
     if qt == "4.0":
@@ -123,7 +123,7 @@ if __name__ == "__main__":
         caption.setAutoFillBackground(True)
         caption.setMargin(2)
         layout.addWidget(caption, 1, 0, Qt.AlignCenter | Qt.AlignTop)
-    
+
     if qt == "4.0":
         contentsWidget = createGroupBox(label)
         contentsWidget.setAttribute(Qt.WA_ContentsPropagated, True)
@@ -138,7 +138,7 @@ if __name__ == "__main__":
         caption.setAutoFillBackground(True)
         caption.setMargin(2)
         layout.addWidget(caption, 1, 1, Qt.AlignCenter | Qt.AlignTop)
-    
+
 #    if qt == "4.0":
 #        noBackgroundWidget = createGroupBox(
 #            label, attributes = [Qt.WA_NoBackground], fake = True)
@@ -155,7 +155,7 @@ if __name__ == "__main__":
 #        caption.setAutoFillBackground(True)
 #        caption.setMargin(2)
 #        layout.addWidget(caption, 3, 0, Qt.AlignCenter | Qt.AlignTop)
-#    
+#
 #    if qt == "4.0":
 #        contentsNoBackgroundWidget = createGroupBox(
 #            label, attributes = [Qt.WA_ContentsPropagated, Qt.WA_NoBackground],
@@ -173,12 +173,12 @@ if __name__ == "__main__":
 #        caption.setAutoFillBackground(True)
 #        caption.setMargin(2)
 #        layout.addWidget(caption, 3, 1, Qt.AlignCenter | Qt.AlignTop)
-    
+
     if qt == "4.0":
         label.setWindowTitle("Qt 4.0: Painting Standard Qt Widgets")
     elif qt == "4.1":
         label.setWindowTitle("Qt 4.1: Painting Standard Qt Widgets")
-    
+
     label.resize(480, 140)
     label.show()
     sys.exit(app.exec_())
diff --git a/doc/src/diagrams/dependencies.lout b/doc/src/diagrams/dependencies.lout
index 256f7de4..6f86beeb 100644
--- a/doc/src/diagrams/dependencies.lout
+++ b/doc/src/diagrams/dependencies.lout
@@ -67,27 +67,27 @@ macro @GlibColour { rgb { 0.7 0.7 0.7 } }
     @Rowe A { FREETYPE:: @Node paint { @OptionalColour } FreeType }
           B { QTCORE:: @Node paint { @TTPurpleColour } QtCore }
           D { XFIXES:: @Node paint { @OptionalColour } Xfixes }
-	  E { XEXT:: @Node paint { @DefaultColour } Xext }
+          E { XEXT:: @Node paint { @DefaultColour } Xext }
           G { SM:: @Node paint { @SMColour } SM }
     @Rowf B { PTHREAD:: @Node paint { @PthreadColour } pthread }
           C { GLIB:: @Node paint { @GlibColour } Glib }
           E { X:: @Node paint { @DefaultColour } X11 }
           G { ICE:: @Node paint { @SMColour } ICE }
     @Rowg F {
-	@Tbl
-	    font { -2p }
-	    margin { 0.15f }
-	    cmarginabove { 0c }
-	    iv { top }
-	    bformat { @Cell A | @Cell B | @Cell C }
-	    cformat { @Cell A | @Cell B | @Cell C }
-	    aformat { @StartHSpan @Cell A | @HSpan | @HSpan }
-	{
-	    @Rowb A { C:: @BNode {} } B { D:: @BNode {} }
-	          C { some configurations only }
+        @Tbl
+            font { -2p }
+            margin { 0.15f }
+            cmarginabove { 0c }
+            iv { top }
+            bformat { @Cell A | @Cell B | @Cell C }
+            cformat { @Cell A | @Cell B | @Cell C }
+            aformat { @StartHSpan @Cell A | @HSpan | @HSpan }
+        {
+            @Rowb A { C:: @BNode {} } B { D:: @BNode {} }
+                  C { some configurations only }
             @Rowb B { * } C { Xt intrinsics only }
-	}
-	} 
+        }
+    }
 }
 //
 @VHVCurveArrow from { QTGUI } to { XINERAMA } pathstyle { dotted }
diff --git a/doc/src/diagrams/programs/mdiarea.py b/doc/src/diagrams/programs/mdiarea.py
index c1db005d..8566af9a 100644
--- a/doc/src/diagrams/programs/mdiarea.py
+++ b/doc/src/diagrams/programs/mdiarea.py
@@ -49,12 +49,12 @@ from PyQt4.QtGui import QApplication, QColor, QIcon, QLabel, QMdiArea, QPixmap,
 class Changer:
 
     def __init__(self, mdiArea):
-    
+
         self.mdiArea = mdiArea
         self.state = 0
-    
+
     def change(self):
-    
+
         if self.state == 0:
             self.mdiArea.cascadeSubWindows()
             self.mdiArea.setWindowTitle("Cascade")
@@ -71,9 +71,9 @@ if __name__ == "__main__":
     pixmap.fill(QColor(0, 0, 0, 0))
     icon = QIcon(pixmap)
     app.setWindowIcon(icon)
-    
+
     mdiArea = QMdiArea()
-    
+
     textEdit = QTextEdit()
     textEdit.setPlainText("Qt Quarterly is a paper-based newsletter "
                           "exclusively available to Qt customers. Every "
@@ -83,27 +83,27 @@ if __name__ == "__main__":
                           "written by Qt experts.")
     textWindow = mdiArea.addSubWindow(textEdit)
     textWindow.setWindowTitle("A Text Editor")
-    
+
     label = QLabel()
     label.setPixmap(QPixmap("../../images/qt-logo.png"))
     labelWindow = mdiArea.addSubWindow(label)
     labelWindow.setWindowTitle("A Label")
-    
+
     items = (("Henry", 23), ("Bill", 56), ("Susan", 19), ("Jane", 47))
     table = QTableWidget(len(items), 2)
-    
+
     for i in range(len(items)):
         name, age = items[i]
         item = QTableWidgetItem(name)
         table.setItem(i, 0, item)
         item = QTableWidgetItem(str(age))
         table.setItem(i, 1, item)
-    
+
     tableWindow = mdiArea.addSubWindow(table)
     tableWindow.setWindowTitle("A Table Widget")
-    
+
     mdiArea.show()
-    
+
     changer = Changer(mdiArea)
     button = QPushButton("Cascade")
     button.connect(button, SIGNAL("clicked()"), changer.change)
diff --git a/doc/src/diagrams/programs/qpen-dashpattern.py b/doc/src/diagrams/programs/qpen-dashpattern.py
index 24034dbc..7fb26209 100644
--- a/doc/src/diagrams/programs/qpen-dashpattern.py
+++ b/doc/src/diagrams/programs/qpen-dashpattern.py
@@ -48,63 +48,63 @@ from PyQt4.QtSvg import QSvgGenerator
 if __name__ == "__main__":
 
     app = QApplication(sys.argv)
-    
+
     #device = QSvgGenerator()
     #device.setFileName("qpen-dashpattern.svg")
     #device.setSize(QSize(216, 144))
     #device.setResolution(72)
-    
+
     device = QImage(192, 144, QImage.Format_ARGB32)
     device.fill(qRgba(0, 0, 0, 0))
-    
+
     #resolution = device.resolution() # dpi
     #dpp = resolution / 72.0
-    
+
     p = QPainter()
     p.begin(device)
-    
+
     width = 8
-    
+
     pen = QPen()
     pen.setWidth(width)
     pen.setDashPattern([4, 2])
     pen.setCapStyle(Qt.FlatCap)
-    
+
     faded_pen = QPen()
     faded_pen.setWidth(width)
     faded_pen.setDashPattern([4, 2])
     faded_pen.setColor(QColor(160, 160, 160))
     faded_pen.setCapStyle(Qt.FlatCap)
-    
+
     font = QFont("Monospace")
     font.setPointSize(12)
     p.setFont(font)
     p.setBrush(QColor(160, 0, 0))
-    
+
     for x in range(-6, 9):
-    
+
         if x % 4 == 0:
             length = 6
         else:
             length = 2
-        
+
         p.drawLine(64 + x * width, 4, 64 + x * width, 4 + length)
         p.drawLine(64 + x * width, 136, 64 + x * width, 136 - length)
-    
+
     offsets = (0, 2, 3.5, 4, 5, 6)
     for i in range(len(offsets)):
-    
+
         offset = offsets[i]
         pen.setDashOffset(offset)
-        
+
         p.setPen(faded_pen)
         p.drawLine(64 - offset * width, 20 + (i * 20), 64, 20 + (i * 20))
-        
+
         p.setPen(pen)
         p.drawLine(64, 20 + (i * 20), 128, 20 + (i * 20))
-        
+
         p.drawText(150, 25 + (i * 20), str(offset))
-    
+
     p.end()
     device.save("qpen-dashpattern.png")
     sys.exit()
diff --git a/doc/src/frameworks-technologies/desktop-integration.qdoc b/doc/src/frameworks-technologies/desktop-integration.qdoc
index f63e907b..68fbc22e 100644
--- a/doc/src/frameworks-technologies/desktop-integration.qdoc
+++ b/doc/src/frameworks-technologies/desktop-integration.qdoc
@@ -29,7 +29,7 @@
     \page desktop-integration.html
     \title Desktop Integration
     \brief Integrating with the user's desktop environment.
-    
+
     \ingroup best-practices
     \ingroup qt-gui-concepts
 
diff --git a/doc/src/frameworks-technologies/unicode.qdoc b/doc/src/frameworks-technologies/unicode.qdoc
index e5a3ba5c..c6bc4bf4 100644
--- a/doc/src/frameworks-technologies/unicode.qdoc
+++ b/doc/src/frameworks-technologies/unicode.qdoc
@@ -60,7 +60,7 @@
     about rendering text, see the \l{Rich Text Processing} overview, and if
     your string data is in XML, see the \l{XML Processing} overview.
 
-	\annotatedlist string-processing
+    \annotatedlist string-processing
 
     \section1 Information about Unicode on the Web
 
diff --git a/doc/src/getting-started/known-issues.qdoc b/doc/src/getting-started/known-issues.qdoc
index f5aba16b..7c600065 100644
--- a/doc/src/getting-started/known-issues.qdoc
+++ b/doc/src/getting-started/known-issues.qdoc
@@ -30,7 +30,7 @@
     \title Known Issues
     \brief Links to online resources stating known issues in this Qt version at the time of release.
 
-	\list
+    \list
     \li An up-to-date list of known issues can be found at the \l{Qt Bug Tracker}.
     \li An overview of known issues may also be found at: \l{http://qt.gitorious.org/qt/pages/QtKnownIssues}
     {Known Issues Wiki}.
diff --git a/doc/src/graphics.qdoc b/doc/src/graphics.qdoc
index bae96475..8a2306cc 100644
--- a/doc/src/graphics.qdoc
+++ b/doc/src/graphics.qdoc
@@ -51,7 +51,7 @@ and a complete feature set.
 
 \sa {Paint System}
 
-\list 
+\list
 
     \li \l {Paint System}{Paint System} - Overview over the QPainter
     classes and architecture.
@@ -102,8 +102,8 @@ desktop platforms and almost every mobile and embedded platform. The
 Qt library contains a number of classes that help users integrate
 OpenGL into their applications.
 
-\list 
-    
+\list
+
     \li \l {qtgui-index.html#opengl-and-opengl-es-integration}{OpenGL
     in Qt GUI} - An overview of how OpenGL integrates with the \l{Qt GUI}
     module.
@@ -148,7 +148,7 @@ file, and use QQuickView to run it.
     \li \l {Scene Graph and Rendering} - Breakdown of the rendering of
     each frame.
 
-\endlist 
+\endlist
 
 Qt Quick can be mixed with raw OpenGL rendering by connecting to the
 signals \l QQuickWindow::beforeRendering() or \l
diff --git a/doc/src/howtos/exceptionsafety.qdoc b/doc/src/howtos/exceptionsafety.qdoc
index 9c2136c8..37ec0dd9 100644
--- a/doc/src/howtos/exceptionsafety.qdoc
+++ b/doc/src/howtos/exceptionsafety.qdoc
@@ -48,7 +48,7 @@
     \section1 Exception safe modules
 
     \section2 Containers
-    
+
     Qt's \l{container classes} are generally exception neutral. They pass any
     exception that happens within their contained type \c T to the user
     while keeping their internal state valid.
@@ -107,7 +107,7 @@
     \section1 Recovering from exceptions
 
     Currently, the only supported use case for recovering from exceptions thrown
-    within Qt (for example due to out of memory) is to exit the event loop and do 
+    within Qt (for example due to out of memory) is to exit the event loop and do
     some cleanup before exiting the application.
 
     Typical use case:
diff --git a/doc/src/howtos/session.qdoc b/doc/src/howtos/session.qdoc
index afe0a231..9168f252 100644
--- a/doc/src/howtos/session.qdoc
+++ b/doc/src/howtos/session.qdoc
@@ -47,7 +47,7 @@
     session may include applications running on different computers and
     may span multiple displays.
 
-    \section1 Shutting a Session Down 
+    \section1 Shutting a Session Down
 
     A session is shut down by the session manager, usually on behalf of
     the user when they want to log out. A system might also perform an
@@ -73,7 +73,7 @@
 
     X11 has supported complete session management since X11R6.
 
-    \section1 Getting Session Management to Work with Qt 
+    \section1 Getting Session Management to Work with Qt
 
     Start by reimplementing QApplication::commitData() to
     enable your application to take part in the graceful logout process. If
@@ -105,12 +105,12 @@
 
     \b{Important:} In order to allow the window manager to
     restore window attributes such as stacking order or geometry
-    information, you must identify your top level widgets with 
+    information, you must identify your top level widgets with
     unique application-wide object names (see QObject::setObjectName()). When
     restoring the application, you must ensure that all restored
     top level widgets are given the same unique names they had before.
 
-    \section1 Testing and Debugging Session Management 
+    \section1 Testing and Debugging Session Management
 
     Session management support on Mac OS X and Windows is fairly limited
     due to the lack of this functionality in the operating system
diff --git a/doc/src/howtos/sharedlibrary.qdoc b/doc/src/howtos/sharedlibrary.qdoc
index aca80556..7d1fc53d 100644
--- a/doc/src/howtos/sharedlibrary.qdoc
+++ b/doc/src/howtos/sharedlibrary.qdoc
@@ -110,9 +110,9 @@
 
         class MyDevice {
         private:
-	    FOOTRONICS_DEVICE_HANDLE handle;
+            FOOTRONICS_DEVICE_HANDLE handle;
         };
-    \endcode  
+    \endcode
 
     A similar situation arises with forms created by Qt Designer when using
     aggregation or multiple inheritance:
@@ -122,9 +122,9 @@
 
         class MyWidget : public QWidget {
         private:
-	    Ui::MyWidget m_ui;
+            Ui::MyWidget m_ui;
         };
-    \endcode  
+    \endcode
 
     When deploying the library, there should be no dependency to the internal
     headers \c{footronics/device.h} or \c{ui_widget.h}.
diff --git a/doc/src/legal/trademarks.qdoc b/doc/src/legal/trademarks.qdoc
index 3b8c4984..d7c7de92 100644
--- a/doc/src/legal/trademarks.qdoc
+++ b/doc/src/legal/trademarks.qdoc
@@ -41,18 +41,18 @@
     \li Oracle and Java are registered trademarks of Oracle and/or its affiliates.
        Other names may be trademarks of their respective owners.
     \li Linux is a \reg trademark of Linus Torvalds in the United States, other
-       countries or both. 
+       countries or both.
     \li Mac, Mac OS and Macintosh are \reg trademarks of Apple Computer, Inc.,
-       registered in the U.S. and other countries. 
+       registered in the U.S. and other countries.
     \li Microsoft, Windows, Windows NT, XP, Windows Vista, Visual Studio, ActiveX
        and the Windows logo are \reg trademarks of Microsoft Corporation in the
        United States, other countries, or both.
     \li Motif is a registered trademark of The Open Group in the United States,
-       other countries, or both. 
+       other countries, or both.
     \li OpenGL is a \reg trademark of Silicon Graphics, Inc. in the United States
-       and other countries. 
+       and other countries.
     \li UNIX is a registered trademark of The Open Group in the United States
-       and other countries. 
+       and other countries.
     \li All other company, product, or service names may be trademarks or
        service marks of others and are the property of their respective owners.
        The use of the word partner does not imply a partnership relationship
diff --git a/doc/src/platforms/emb-opengl.qdocinc b/doc/src/platforms/emb-opengl.qdocinc
index 421879fd..7a46c585 100644
--- a/doc/src/platforms/emb-opengl.qdocinc
+++ b/doc/src/platforms/emb-opengl.qdocinc
@@ -33,9 +33,9 @@ To translate QPainter operations into OpenGL ES calls (there are actually
 two subclasses, one for OpenGL/ES 1.1 and another for OpenGL/ES 2.0), Qt
 uses a subclass of QPaintEngine.  This specialized paint engine can be used
 to improve 2D rendering performance on appropriate hardware.  It can also
-overlay controls and decorations onto 3D scenes drawn using OpenGL. 
+overlay controls and decorations onto 3D scenes drawn using OpenGL.
 
-\tableofcontents 
+\tableofcontents
 
 \section1 Using OpenGL ES with Qt
 To use OpenGL-enabled widgets in a Qt for Embedded application, all that is
@@ -74,7 +74,7 @@ application requires them.
 \note OpenGL ES 2.X does not support PBuffers, so QGLPixelBuffer will not
 work. In this case, QGLFramebufferObject should be used instead. However,
 OpenGL ES 1.X does not support Framebuffer objects, with the exception of
-some OpenGL ES 1.X extensions. In this case, please use QGLPixelBuffer. 
+some OpenGL ES 1.X extensions. In this case, please use QGLPixelBuffer.
 
 \note On most embedded hardware, the OpenGL implementation is
 actually \l{http://www.khronos.org/opengles/1_X/}{OpenGL/ES 1.1} or
diff --git a/doc/src/platforms/wince-signing.qdoc b/doc/src/platforms/wince-signing.qdoc
index 0a357a1e..c334f958 100644
--- a/doc/src/platforms/wince-signing.qdoc
+++ b/doc/src/platforms/wince-signing.qdoc
@@ -35,11 +35,11 @@
 
 Windows CE provides a security mechanism to ask the user to confirm
 that they want to use an application/library that is unknown to the
-system. This process gets repeated for each dependency of an 
+system. This process gets repeated for each dependency of an
 application, meaning each library the application links to, which is
 not recognized yet.
 
-To simplify this process you can use signatures and certificates. A 
+To simplify this process you can use signatures and certificates. A
 certificate gets installed on the device and each file which is
 signed with the according certificate can be launched without the
 security warning.
@@ -50,7 +50,7 @@ location of the .pfx file and qmake adds the signing step to the
 build rules.
 
 If you need to select a separate signature for a specific project,
-or you only want to sign a single project, you can use the 
+or you only want to sign a single project, you can use the
 "SIGNATURE_FILE = foo.pfx" rule inside the project file.
 
 The above described rules apply for command line makefiles as well as
diff --git a/doc/src/snippets/accessibilityfactorysnippet.cpp b/doc/src/snippets/accessibilityfactorysnippet.cpp
index b23d4232..a6d6732d 100644
--- a/doc/src/snippets/accessibilityfactorysnippet.cpp
+++ b/doc/src/snippets/accessibilityfactorysnippet.cpp
@@ -47,7 +47,7 @@ QAccessibleInterface *sliderFactory(const QString &classname, QObject *object)
 
     if (classname == QLatin1String("QSlider") && object && object->isWidgetType())
         interface = new QAccessibleSlider(static_cast<QWidget *>(object));
-    
+
     return interface;
 }
 
diff --git a/doc/src/snippets/accessibilityslidersnippet.cpp b/doc/src/snippets/accessibilityslidersnippet.cpp
index 9b445c2e..96ac4b92 100644
--- a/doc/src/snippets/accessibilityslidersnippet.cpp
+++ b/doc/src/snippets/accessibilityslidersnippet.cpp
@@ -199,7 +199,7 @@ static const char * const actionTexts[][5] =
 QString QAccessibleSlider::actionText(int action, Text text, int child) const
 {
     if (action != Press || child < 1 || child > 2)
-        return QAccessibleAbstractSlider::actionText(action, text, child);        
+        return QAccessibleAbstractSlider::actionText(action, text, child);
 
     return actionTexts[child - 1][t];
 }
@@ -208,7 +208,7 @@ bool QAccessibleSlider::doAction(int action, int child)
 {
     if (action != Press || child < 1 || child > 2)
         return false;
-    
+
     if (child == PageLeft)
         slider()->setValue(slider()->value() - slider()->pageStep());
     else
diff --git a/doc/src/snippets/audio/main.cpp b/doc/src/snippets/audio/main.cpp
index 76d8783b..73bf7e1a 100644
--- a/doc/src/snippets/audio/main.cpp
+++ b/doc/src/snippets/audio/main.cpp
@@ -118,7 +118,7 @@ public slots:
                 break;
 //![3]
 
-            // Handle 
+            // Handle
             case QAudio::ActiveState:
                 // Handle active state...
                 break;
@@ -139,7 +139,7 @@ int main(int argc, char *argv[])
     Window window;
     window.show();
 
-    return app.exec();        
+    return app.exec();
 }
 
 
diff --git a/doc/src/snippets/code/doc_src_fdl.qdoc b/doc/src/snippets/code/doc_src_fdl.qdoc
index b656e805..8ea9999c 100644
--- a/doc/src/snippets/code/doc_src_fdl.qdoc
+++ b/doc/src/snippets/code/doc_src_fdl.qdoc
@@ -428,19 +428,19 @@ public wiki that anybody can edit is an example of such a server.  A
 "Massive Multiauthor Collaboration" (or "MMC") contained in the site
 means any set of copyrightable works thus published on the MMC site.
 
-"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 
-license published by Creative Commons Corporation, a not-for-profit 
-corporation with a principal place of business in San Francisco, 
-California, as well as future copyleft versions of that license 
+"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0
+license published by Creative Commons Corporation, a not-for-profit
+corporation with a principal place of business in San Francisco,
+California, as well as future copyleft versions of that license
 published by that same organization.
 
-"Incorporate" means to publish or republish a Document, in whole or in 
+"Incorporate" means to publish or republish a Document, in whole or in
 part, as part of another Document.
 
-An MMC is "eligible for relicensing" if it is licensed under this 
-License, and if all works that were first published under this License 
-somewhere other than this MMC, and subsequently incorporated in whole or 
-in part into the MMC, (1) had no cover texts or invariant sections, and 
+An MMC is "eligible for relicensing" if it is licensed under this
+License, and if all works that were first published under this License
+somewhere other than this MMC, and subsequently incorporated in whole or
+in part into the MMC, (1) had no cover texts or invariant sections, and
 (2) were thus incorporated prior to November 1, 2008.
 
 The operator of an MMC Site may republish an MMC contained in the site
diff --git a/doc/src/snippets/code/doc_src_lgpl.qdoc b/doc/src/snippets/code/doc_src_lgpl.qdoc
index f33eda29..98e53603 100644
--- a/doc/src/snippets/code/doc_src_lgpl.qdoc
+++ b/doc/src/snippets/code/doc_src_lgpl.qdoc
@@ -187,7 +187,7 @@ such a program is covered only if its contents constitute a work based
 on the Library (independent of the use of the Library in a tool for
 writing it).  Whether that is true depends on what the Library does
 and what the program that uses the Library does.
-  
+
   1. You may copy and distribute verbatim copies of the Library's
 complete source code as you receive it, in any medium, provided that
 you conspicuously and appropriately publish on each copy an
diff --git a/doc/src/snippets/code/doc_src_licenses.qdoc b/doc/src/snippets/code/doc_src_licenses.qdoc
index 2fbab661..0c6408b2 100644
--- a/doc/src/snippets/code/doc_src_licenses.qdoc
+++ b/doc/src/snippets/code/doc_src_licenses.qdoc
@@ -43,7 +43,7 @@
     ----------------------------------------------------
 
     this font is provided free for personal or commercial use,
-    it can be redistributed however it may not be sold.  
+    it can be redistributed however it may not be sold.
     ----------------------------------------------------
     (C) 1999 utopiafonts. dale_thorpe@bssc.edu.au
 //! [1]
@@ -95,7 +95,7 @@
     otherwise to promote the sale, use or other dealings in this Font Software
     without prior written authorization from the Gnome Foundation or Bitstream
     Inc., respectively. For further information, contact: fonts at gnome dot
-    org. 
+    org.
 
     Arev Fonts Copyright
     ------------------------------
@@ -122,7 +122,7 @@
     the words "Tavmjong Bah" or the word "Arev".
 
     This License becomes null and void to the extent applicable to Fonts
-    or Font Software that has been modified and is distributed under the 
+    or Font Software that has been modified and is distributed under the
     "Tavmjong Bah Arev" names.
 
     The Font Software may be sold as part of a larger software package but
diff --git a/doc/src/snippets/code/doc_src_moc.cpp b/doc/src/snippets/code/doc_src_moc.cpp
index ba95e2fc..79cd49a7 100644
--- a/doc/src/snippets/code/doc_src_moc.cpp
+++ b/doc/src/snippets/code/doc_src_moc.cpp
@@ -45,7 +45,7 @@
 
 //! [4]
 #ifndef Q_MOC_RUN
-    ... 
+    ...
 #endif
 //! [4]
 
diff --git a/doc/src/snippets/code/tools_assistant_compat_lib_qassistantclient.cpp b/doc/src/snippets/code/tools_assistant_compat_lib_qassistantclient.cpp
index 5a4cd821..49962604 100644
--- a/doc/src/snippets/code/tools_assistant_compat_lib_qassistantclient.cpp
+++ b/doc/src/snippets/code/tools_assistant_compat_lib_qassistantclient.cpp
@@ -42,14 +42,14 @@
         QProcess *process = new QProcess(this);
         QString app = QLibraryInfo::location(QLibraryInfo::BinariesPath)
             + QLatin1String("/assistant");
-        
+
         process->start(app, QStringList() << QLatin1String("-enableRemoteControl"));
         if (!process->waitForStarted()) {
             QMessageBox::critical(this, tr("Remote Control"),
                 tr("Could not start Qt Assistant from %1.").arg(app));
             return;
         }
-        
+
         // show index page
         QTextStream str(process);
         str << QLatin1String("SetSource qthelp://mycompany.com/doc/index.html")
diff --git a/doc/src/snippets/dockwidgets/Resources/titles.txt b/doc/src/snippets/dockwidgets/Resources/titles.txt
index 016825d8..53792602 100644
--- a/doc/src/snippets/dockwidgets/Resources/titles.txt
+++ b/doc/src/snippets/dockwidgets/Resources/titles.txt
@@ -1,7 +1,7 @@
-Qt Classes by Module		:/Resources/modules.html
-QtCore				:/Resources/qtcore.html
-QtGui				:/Resources/qtgui.html
-QtNetwork			:/Resources/qtnetwork.html
-QtOpenGL			:/Resources/qtopengl.html
-QtSql				:/Resources/qtsql.html
-QtXml				:/Resources/qtxml.html
+Qt Classes by Module    :/Resources/modules.html
+QtCore                  :/Resources/qtcore.html
+QtGui                   :/Resources/qtgui.html
+QtNetwork               :/Resources/qtnetwork.html
+QtOpenGL                :/Resources/qtopengl.html
+QtSql                   :/Resources/qtsql.html
+QtXml                   :/Resources/qtxml.html
diff --git a/doc/src/snippets/modelview-subclasses/window.cpp b/doc/src/snippets/modelview-subclasses/window.cpp
index 951b40be..a9ef07ac 100644
--- a/doc/src/snippets/modelview-subclasses/window.cpp
+++ b/doc/src/snippets/modelview-subclasses/window.cpp
@@ -79,7 +79,7 @@ void MainWindow::selectOpenFile()
 {
     QString fileName = QFileDialog::getOpenFileName(this,
         tr("Select a file to open"), "", tr("Sound files (*.wav)"));
-    
+
     if (!fileName.isEmpty())
         openFile(fileName);
 }
diff --git a/doc/src/snippets/persistentindexes/mainwindow.cpp b/doc/src/snippets/persistentindexes/mainwindow.cpp
index 21ecb6bb..042c5ae8 100644
--- a/doc/src/snippets/persistentindexes/mainwindow.cpp
+++ b/doc/src/snippets/persistentindexes/mainwindow.cpp
@@ -81,7 +81,7 @@ MainWindow::MainWindow(QWidget *parent)
     connect(selectionModel,
             SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
             this, SLOT(updateMenus(const QModelIndex &)));
-    
+
     setCentralWidget(view);
     setWindowTitle("View onto a string list model");
 }
diff --git a/doc/src/snippets/qabstractsliderisnippet.cpp b/doc/src/snippets/qabstractsliderisnippet.cpp
index 5fa1c421..babff95a 100644
--- a/doc/src/snippets/qabstractsliderisnippet.cpp
+++ b/doc/src/snippets/qabstractsliderisnippet.cpp
@@ -502,7 +502,7 @@ bool QAbstractSlider::event(QEvent *e)
         break;
     }
 #endif
-    
+
     return QWidget::event(e);
 }
 
diff --git a/doc/src/snippets/qsvgwidget/spheres.svg b/doc/src/snippets/qsvgwidget/spheres.svg
index 9e381930..b894f7e9 100644
--- a/doc/src/snippets/qsvgwidget/spheres.svg
+++ b/doc/src/snippets/qsvgwidget/spheres.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" standalone="no"?>
 <svg width="8cm" height="8cm" viewBox="0 0 400 400"
-     xmlns="http://www.w3.org/2000/svg" 
+     xmlns="http://www.w3.org/2000/svg"
      xmlns:xlink="http://www.w3.org/1999/xlink/"
      baseProfile="tiny" version="1.2">
   <title>Spheres</title>
diff --git a/doc/src/snippets/qsvgwidget/sunflower.svg b/doc/src/snippets/qsvgwidget/sunflower.svg
index b60dd11a..e888cb74 100644
--- a/doc/src/snippets/qsvgwidget/sunflower.svg
+++ b/doc/src/snippets/qsvgwidget/sunflower.svg
@@ -1,20 +1,20 @@
 <?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
 <svg width="289.619" height="450.482"
      xmlns="http://www.w3.org/2000/svg" baseProfile="tiny" version="1.1">
-  <defs> 
-    <marker id="ArrowEnd" viewBox="0 0 10 10" refX="0" refY="5" 
-     markerUnits="strokeWidth" 
-     markerWidth="4" 
-     markerHeight="3" 
-     orient="auto"> 
-        <path d="M 0 0 L 10 5 L 0 10 z" /> 
+  <defs>
+    <marker id="ArrowEnd" viewBox="0 0 10 10" refX="0" refY="5"
+     markerUnits="strokeWidth"
+     markerWidth="4"
+     markerHeight="3"
+     orient="auto">
+        <path d="M 0 0 L 10 5 L 0 10 z" />
     </marker>
-    <marker id="ArrowStart" viewBox="0 0 10 10" refX="10" refY="5" 
-     markerUnits="strokeWidth" 
-     markerWidth="4" 
-     markerHeight="3" 
-     orient="auto"> 
-        <path d="M 10 0 L 0 5 L 10 10 z" /> 
+    <marker id="ArrowStart" viewBox="0 0 10 10" refX="10" refY="5"
+     markerUnits="strokeWidth"
+     markerWidth="4"
+     markerHeight="3"
+     orient="auto">
+        <path d="M 10 0 L 0 5 L 10 10 z" />
     </marker> </defs>
 <g>
 <defs><linearGradient id="1" x1="155.352" y1="450.482" x2="155.352" y2="140" gradientUnits="userSpaceOnUse">
diff --git a/doc/src/snippets/qtablewidget-dnd/mainwindow.cpp b/doc/src/snippets/qtablewidget-dnd/mainwindow.cpp
index 1e33d783..baa021b0 100644
--- a/doc/src/snippets/qtablewidget-dnd/mainwindow.cpp
+++ b/doc/src/snippets/qtablewidget-dnd/mainwindow.cpp
@@ -112,7 +112,7 @@ void MainWindow::averageItems()
     foreach (item, selected) {
         bool ok;
         double value = item->text().toDouble(&ok);
-        
+
         if (ok && !item->text().isEmpty()) {
             total += value;
             number++;
-- 
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