Fix build with Qt-5.11 (missing headers)

src/app/layout/qgslayoutpolylinewidget.cpp

@@ -21,6 +21,8 @@
 #include "qgslayoutitemregistry.h"
 #include "qgslayout.h"
 #include "qgslayoutundostack.h"
+
+#include <QButtonGroup>
 #include <QFileDialog>
 
 QgsLayoutPolylineWidget::QgsLayoutPolylineWidget( QgsLayoutItemPolyline *polyline )

src/app/layout/qgslayoutscalebarwidget.cpp

@@ -19,6 +19,7 @@
 #include "qgslayoutitemscalebar.h"
 #include "qgslayout.h"
 #include "qgsguiutils.h"
+
 #include <QColorDialog>
 #include <QFontDialog>
 #include <QWidget>

src/app/layout/qgslayoutscalebarwidget.h

@@ -20,6 +20,8 @@
 #include "ui_qgslayoutscalebarwidgetbase.h"
 #include "qgslayoutitemwidget.h"
 
+#include <QButtonGroup>
+
 class QgsLayoutItemScaleBar;
 
 /**

src/app/qgslabelinggui.cpp

@@ -24,6 +24,8 @@
 #include "qgsauxiliarystorage.h"
 #include "qgsnewauxiliarylayerdialog.h"
 
+#include <QButtonGroup>
+
 QgsExpressionContext QgsLabelingGui::createExpressionContext() const
 {
   QgsExpressionContext expContext;

src/app/qgsrulebasedlabelingwidget.cpp

@@ -26,6 +26,7 @@
 #include "qgsvectorlayerlabeling.h"
 #include "qgslogger.h"
 
+#include <QAction>
 #include <QClipboard>
 #include <QMessageBox>
 

src/gui/layout/qgslayoutitemwidget.cpp

@@ -21,6 +21,8 @@
 #include "qgsprintlayout.h"
 #include "qgslayoutatlas.h"
 
+#include <QButtonGroup>
+
 //
 // QgsLayoutConfigObject
 //

src/gui/layout/qgslayoutnewitempropertiesdialog.cpp

@@ -19,6 +19,8 @@
 #include "qgslayoutpagecollection.h"
 #include "qgsgui.h"
 
+#include <QButtonGroup>
+
 QgsLayoutItemPropertiesDialog::QgsLayoutItemPropertiesDialog( QWidget *parent, Qt::WindowFlags flags )
   : QDialog( parent, flags )
 {

src/gui/qgscompoundcolorwidget.cpp

@@ -20,6 +20,7 @@
 #include "qgsapplication.h"
 #include "qgssettings.h"
 
+#include <QHeaderView>
 #include <QPushButton>
 #include <QMenu>
 #include <QToolButton>

src/gui/qgsextentgroupbox.cpp

@@ -24,6 +24,7 @@
 
 #include <QMenu>
 #include <QAction>
+#include <QDoubleValidator>
 
 QgsExtentGroupBox::QgsExtentGroupBox( QWidget *parent )
   : QgsCollapsibleGroupBox( parent )

src/gui/qgsgradientcolorrampdialog.cpp

@@ -22,6 +22,7 @@
 #include "qgssettings.h"
 
 #include <QColorDialog>
+#include <QHeaderView>
 #include <QInputDialog>
 #include <QPainter>
 #include <QTableWidget>

src/gui/qgsgroupwmsdatadialog.cpp

@@ -16,6 +16,7 @@
 #include "qgsapplication.h"
 #include "qgsgroupwmsdatadialog.h"
 
+#include <QRegExpValidator>
 
 QgsGroupWmsDataDialog::QgsGroupWmsDataDialog( QWidget *parent, Qt::WindowFlags fl )
   : QDialog( parent, fl )

src/gui/qgstextformatwidget.cpp

@@ -29,6 +29,8 @@
 #include "qgseffectstack.h"
 #include "qgspainteffectregistry.h"
 
+#include <QButtonGroup>
+
 QgsTextFormatWidget::QgsTextFormatWidget( const QgsTextFormat &format, QgsMapCanvas *mapCanvas, QWidget *parent )
   : QWidget( parent )
   , mMapCanvas( mapCanvas )

src/gui/symbology/qgssymbollayerwidget.cpp

@@ -43,6 +43,7 @@
 #include "qgsauxiliarystorage.h"
 
 #include <QAbstractButton>
+#include <QButtonGroup>
 #include <QColorDialog>
 #include <QCursor>
 #include <QDir>

src/providers/arcgisrest/qgsarcgisservicesourceselect.cpp

@@ -29,6 +29,7 @@
 #include "qgssettings.h"
 #include "qgsmapcanvas.h"
 
+#include <QButtonGroup>
 #include <QListWidgetItem>
 #include <QMessageBox>
 #include <QFileDialog>