diff --git a/demo_r2/mainwindow.cpp b/demo_r2/mainwindow.cpp
index 6f2aa7b..f95b5a5 100644
--- a/demo_r2/mainwindow.cpp
+++ b/demo_r2/mainwindow.cpp
@@ -3,7 +3,11 @@
 #include <QSqlDatabase>
 #include <QDir>
 #include <QDebug>
+#if QT_VERSION < 0x060000
 #include <QDesktopWidget>
+#else
+#include <QScreen>
+#endif
 
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent),
@@ -40,10 +44,17 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(ui->actionOne_to_One, SIGNAL(triggered()), this, SLOT(slotOneToOne()));
     initPercentCombobox();
     enableUI(false);
+#if QT_VERSION < 0x060000
     QDesktopWidget *desktop = QApplication::desktop();
 
     int screenWidth = desktop->screenGeometry().width();
     int screenHeight = desktop->screenGeometry().height();
+#else
+    QScreen *screen = QGuiApplication::primaryScreen();
+
+    int screenWidth = screen->geometry().width();
+    int screenHeight = screen->geometry().height();
+#endif
 
     int x = screenWidth*0.1;
     int y = screenHeight*0.1;
diff --git a/include/LRCallbackDS b/include/LRCallbackDS
index fd5f8c4..72e76a3 100644
--- a/include/LRCallbackDS
+++ b/include/LRCallbackDS
@@ -1 +1 @@
-#include "lrcallbackdatasourceintf.h"
\ No newline at end of file
+#include "lrcallbackdatasourceintf.h"
diff --git a/include/lrglobal.h b/include/lrglobal.h
index c7a9a2e..d1a2b38 100644
--- a/include/lrglobal.h
+++ b/include/lrglobal.h
@@ -104,7 +104,11 @@ namespace Const{
     QString extractClassName(QString className);
     QString escapeSimbols(const QString& value);
     QString replaceHTMLSymbols(const QString &value);
+    #if QT_VERSION < 0x060000
     QVector<QString> normalizeCaptures(const QRegExp &reg);
+#else
+    QVector<QString> normalizeCaptures(const QRegularExpression &reg);
+#endif
     bool isColorDark(QColor color);
 
     enum ExpandType {EscapeSymbols, NoEscapeSymbols, ReplaceHTMLSymbols};
@@ -148,7 +152,7 @@ namespace Const{
         virtual ~IPainterProxy();
     };
 
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+#if QT_VERSION < 0x050000
     typedef QStyleOptionViewItemV4 StyleOptionViewItem;
 #else
     typedef QStyleOptionViewItem StyleOptionViewItem;
diff --git a/limereport/databrowser/lrdatabrowser.cpp b/limereport/databrowser/lrdatabrowser.cpp
index 4a34745..b91605f 100644
--- a/limereport/databrowser/lrdatabrowser.cpp
+++ b/limereport/databrowser/lrdatabrowser.cpp
@@ -63,7 +63,8 @@ DataBrowser::DataBrowser(QWidget *parent) :
     connect(ui->changeConnection,SIGNAL(clicked()),this,SLOT(slotChangeConnection()));
     connect(ui->pbConnect,SIGNAL(clicked()),this,SLOT(slotChangeConnectionState()));
 
-    ui->verticalLayout_2->setMargin(Const::DOCKWIDGET_MARGINS);
+    int margin = Const::DOCKWIDGET_MARGINS;
+    ui->verticalLayout_2->setContentsMargins(margin, margin, margin, margin);
 
     ui->dataTree->setHeaderLabel(tr("Datasources"));
     ui->pbConnect->setEnabled(false);
@@ -413,7 +414,7 @@ void DataBrowser::initConnections()
             connections.append(connectionName);
         }
     }
-    qSort(connections);
+    std::sort(connections.begin(), connections.end());
     foreach (QString connectionName, connections) {
         QTreeWidgetItem *item=new QTreeWidgetItem(
             ui->dataTree,
@@ -443,7 +444,7 @@ void DataBrowser::initConnections()
 //    }
 
 //    connections = m_report->dataManager()->connectionNames();
-//    qSort(connections);
+//    std::sort(connections);
 //    foreach(QString connectionName,connectionName){
 //        if (!QSqlDatabase::contains(connectionName)){
 //            QTreeWidgetItem *item=new QTreeWidgetItem(
diff --git a/limereport/databrowser/lrvariabledialog.cpp b/limereport/databrowser/lrvariabledialog.cpp
index 6883acb..cb8f2d0 100644
--- a/limereport/databrowser/lrvariabledialog.cpp
+++ b/limereport/databrowser/lrvariabledialog.cpp
@@ -78,11 +78,10 @@ void LRVariableDialog::showEvent(QShowEvent *)
     QMetaEnum enumerator = LimeReport::Enums::staticMetaObject.enumerator(enumIndex);
     if (!m_variableName.isEmpty()&&m_variablesContainer&&m_variablesContainer->containsVariable(m_variableName)){
         ui->leValue->setPlainText(m_variablesContainer->variable(m_variableName).toString());
-#ifdef HAVE_QT5
-        ui->cbbType->setCurrentText(enumerator.valueToKey(m_variablesContainer->variableDataType(m_variableName)));
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
         ui->cbbType->setCurrentIndex(ui->cbbType->findText(enumerator.valueToKey(m_variablesContainer->variableDataType(m_variableName))));
+#else
+        ui->cbbType->setCurrentText(enumerator.valueToKey(m_variablesContainer->variableDataType(m_variableName)));
 #endif
         ui->cbbMandatory->setChecked(m_variablesContainer->variableIsMandatory(m_variableName));
     }
diff --git a/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/formresizer.cpp b/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/formresizer.cpp
index e0d88ed..f3bbf48 100644
--- a/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/formresizer.cpp
+++ b/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/formresizer.cpp
@@ -55,12 +55,13 @@ FormResizer::FormResizer(QWidget *parent) :
     setBackgroundRole(QPalette::Base);
 
     QVBoxLayout *handleLayout = new QVBoxLayout(this);
-    handleLayout->setMargin(SELECTION_MARGIN);
+    int margin = SELECTION_MARGIN;
+    handleLayout->setContentsMargins(margin, margin, margin, margin);
     handleLayout->addWidget(m_frame);
 
     m_frame->setFrameStyle(QFrame::Panel | QFrame::Raised);
     QVBoxLayout *layout = new QVBoxLayout(m_frame);
-    layout->setMargin(0);
+    layout->setContentsMargins(0, 0, 0, 0);
     // handles
     m_handles.reserve(SizeHandleRect::Left);
     for (int i = SizeHandleRect::LeftTop; i <= SizeHandleRect::Left; ++i) {
diff --git a/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/widgethost.cpp b/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/widgethost.cpp
index b78eb4b..859993e 100644
--- a/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/widgethost.cpp
+++ b/limereport/dialogdesigner/3rdparty/qtcreator/designerintegrationv2/widgethost.cpp
@@ -70,7 +70,7 @@ void WidgetHost::setFormWindow(QDesignerFormWindowInterface *fw)
 
     setBackgroundRole(QPalette::Base);
     m_formWindow->setAutoFillBackground(true);
-    m_formWindow->setBackgroundRole(QPalette::Background);
+    m_formWindow->setBackgroundRole(QPalette::Window);
 
     connect(m_formResizer, SIGNAL(formWindowSizeChanged(QRect, QRect)),
             this, SLOT(fwSizeWasChanged(QRect, QRect)));
diff --git a/limereport/dialogdesigner/lrdialogdesigner.cpp b/limereport/dialogdesigner/lrdialogdesigner.cpp
index 4a23d4d..740b6a6 100644
--- a/limereport/dialogdesigner/lrdialogdesigner.cpp
+++ b/limereport/dialogdesigner/lrdialogdesigner.cpp
@@ -104,10 +104,9 @@ DialogDesignerManager::DialogDesignerManager(QObject *parent) : QObject(parent)
     m_designerToolWindows.append(m_actionEditor);
     connect(m_actionEditor, SIGNAL(destroyed(QObject*)), this, SLOT(slotObjectDestroyed(QObject*)) );
 
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     m_designerIntegration = new qdesigner_internal::QDesignerIntegration(m_formEditor,this);
-#endif
-#ifdef HAVE_QT5
+#else
     m_designerIntegration = new QDesignerIntegration(m_formEditor,this);
 #endif
     m_formEditor->setIntegration(m_designerIntegration);
diff --git a/limereport/items/charts/lrhorizontalbarchart.cpp b/limereport/items/charts/lrhorizontalbarchart.cpp
index 3d539d9..e5e0e45 100644
--- a/limereport/items/charts/lrhorizontalbarchart.cpp
+++ b/limereport/items/charts/lrhorizontalbarchart.cpp
@@ -36,7 +36,7 @@ void HorizontalBarChart::paintHorizontalBars(QPainter *painter, QRectF barsRect)
     delta = genNextValue(delta);
 
     qreal vStep = (barsRect.height()-painter->fontMetrics().height()) / valuesCount() / seriesCount();
-    qreal hStep = (barsRect.width()-painter->fontMetrics().width(QString::number(maxValue()))) / delta;
+    qreal hStep = (barsRect.width()-painter->fontMetrics().boundingRect(QString::number(maxValue())).width()) / delta;
 
     if (!m_chartItem->series().isEmpty() && (m_chartItem->itemMode() != DesignMode)){
         int curSeries = 0;
diff --git a/limereport/items/charts/lrpiechart.cpp b/limereport/items/charts/lrpiechart.cpp
index d6afb0c..5932c9e 100644
--- a/limereport/items/charts/lrpiechart.cpp
+++ b/limereport/items/charts/lrpiechart.cpp
@@ -8,13 +8,12 @@ void PieChart::drawPercent(QPainter *painter, QRectF chartRect, qreal startAngle
 
     QPointF center(chartRect.left()+chartRect.width()/2,chartRect.top()+chartRect.height()/2);
     qreal percent = angle/3.6;
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     qreal radAngle = (angle/2+startAngle)*(M_PI/180);
-#endif
-#ifdef HAVE_QT5
+#else
     qreal radAngle = qDegreesToRadians(angle/2+startAngle);
 #endif
-    qreal radius = painter->fontMetrics().width("99,9%");
+    qreal radius = painter->fontMetrics().boundingRect("99,9%").width();
     qreal border = chartRect.height()*0.02;
     qreal length = (chartRect.height())/2-(radius/2+border);
     qreal x,y;
@@ -155,14 +154,14 @@ QSizeF PieChart::calcChartLegendSize(const QFont &font)
         SeriesItem* si = m_chartItem->series().at(0);
         foreach(QString label, si->data()->labels()){
             cw += fm.height();
-            if (maxWidth<fm.width(label))
-                maxWidth = fm.width(label)+10;
+            if (maxWidth<fm.boundingRect(label).width())
+                maxWidth = fm.boundingRect(label).width()+10;
         }
     } else {
         foreach(QString label, m_designLabels){
             cw += fm.height();
-            if (maxWidth<fm.width(label))
-                maxWidth = fm.width(label)+10;
+            if (maxWidth<fm.boundingRect(label).width())
+                maxWidth = fm.boundingRect(label).width()+10;
         }
     }
     cw += fm.height();
diff --git a/limereport/items/editors/lritemsborderseditorwidget.cpp b/limereport/items/editors/lritemsborderseditorwidget.cpp
index a8945a9..d8ec0f1 100644
--- a/limereport/items/editors/lritemsborderseditorwidget.cpp
+++ b/limereport/items/editors/lritemsborderseditorwidget.cpp
@@ -53,7 +53,7 @@ void ItemsBordersEditorWidget::properyChangedEvent(const QString& property, cons
 
 void ItemsBordersEditorWidget::noBordesClicked()
 {
-    updateValues(0);
+    updateValues({});
 }
 
 void ItemsBordersEditorWidget::allBordesClicked()
@@ -148,7 +148,7 @@ void ItemsBordersEditorWidgetForDesigner::buttonClicked(bool)
 
 void ItemsBordersEditorWidgetForDesigner::noBordesClicked()
 {
-    m_reportEditor->setBorders(0);
+    m_reportEditor->setBorders({});
     ItemsBordersEditorWidget::noBordesClicked();
 }
 
diff --git a/limereport/items/editors/lrtextalignmenteditorwidget.cpp b/limereport/items/editors/lrtextalignmenteditorwidget.cpp
index abdada0..2569555 100644
--- a/limereport/items/editors/lrtextalignmenteditorwidget.cpp
+++ b/limereport/items/editors/lrtextalignmenteditorwidget.cpp
@@ -108,7 +108,7 @@ void TextAlignmentEditorWidget::updateValues(const Qt::Alignment &align)
 
 Qt::Alignment TextAlignmentEditorWidget::createAlignment()
 {
-    Qt::Alignment align = 0 ;
+    Qt::Alignment align = Qt::Alignment();
     if (m_textAliginLeft->isChecked()) align |= Qt::AlignLeft;
     if (m_textAliginHCenter->isChecked()) align |= Qt::AlignHCenter;
     if (m_textAliginRight->isChecked()) align |= Qt::AlignRight;
diff --git a/limereport/items/lrchartitem.cpp b/limereport/items/lrchartitem.cpp
index 15f76fa..a0f6488 100644
--- a/limereport/items/lrchartitem.cpp
+++ b/limereport/items/lrchartitem.cpp
@@ -30,9 +30,9 @@ namespace LimeReport{
 
 QColor generateColor()
 {
-    int red = (qrand()%(256 - 1)) + 1;
-    int green = (qrand()%(256 - 1)) + 1;
-    int blue = (qrand()%(256 - 1)) + 1;;
+    int red = (rand()%(256 - 1)) + 1;
+    int green = (rand()%(256 - 1)) + 1;
+    int blue = (rand()%(256 - 1)) + 1;;
     return QColor(red,green,blue);
 }
 
@@ -348,7 +348,7 @@ void ChartItem::paintChartTitle(QPainter *painter, QRectF titleRect)
     painter->save();
     QFont tmpFont = painter->font();
     QFontMetrics fm(tmpFont);
-    while ((fm.height()>titleRect.height() || fm.width(m_title)>titleRect.width())
+    while ((fm.height()>titleRect.height() || fm.boundingRect(m_title).width()>titleRect.width())
            && tmpFont.pixelSize()>1) {
         tmpFont.setPixelSize(tmpFont.pixelSize()-1);
         fm = QFontMetrics(tmpFont);
@@ -570,14 +570,14 @@ QSizeF AbstractSeriesChart::calcChartLegendSize(const QFont &font)
     if (!m_chartItem->series().isEmpty()){
         foreach(SeriesItem* series, m_chartItem->series()){
             cw += fm.height();
-            if (maxWidth<fm.width(series->name()))
-                maxWidth = fm.width(series->name())+10;
+            if (maxWidth<fm.boundingRect(series->name()).width())
+                maxWidth = fm.boundingRect(series->name()).width()+10;
         }
     } else {
         foreach(QString label, m_designLabels){
             cw += fm.height();
-            if (maxWidth<fm.width(label))
-                maxWidth = fm.width(label)+10;
+            if (maxWidth<fm.boundingRect(label).width())
+                maxWidth = fm.boundingRect(label).width()+10;
         }
     }
     cw += fm.height();
@@ -591,7 +591,7 @@ bool AbstractSeriesChart::verticalLabels(QPainter* painter, QRectF labelsRect)
     qreal hStep = (labelsRect.width() / valuesCount());
     QFontMetrics fm = painter->fontMetrics();
     foreach(QString label, m_chartItem->labels()){
-        if (fm.width(label) > hStep){
+        if (fm.boundingRect(label).width() > hStep){
             return  true;
         }
     }
@@ -656,7 +656,7 @@ void AbstractSeriesChart::paintHorizontalGrid(QPainter *painter, QRectF gridRect
     delta = genNextValue(delta);
 
     painter->setRenderHint(QPainter::Antialiasing,false);
-    qreal hStep = (gridRect.width() - painter->fontMetrics().width(QString::number(maxValue()))) / 4;
+    qreal hStep = (gridRect.width() - painter->fontMetrics().boundingRect(QString::number(maxValue())).width()) / 4;
 
     painter->setFont(adaptValuesFont(hStep-4, painter->font()));
 
@@ -708,7 +708,7 @@ qreal AbstractSeriesChart::valuesHMargin(QPainter *painter)
 {
     int delta = int(maxValue()-minValue());
     delta = genNextValue(delta);
-    return painter->fontMetrics().width(QString::number(delta))+4;
+    return painter->fontMetrics().boundingRect(QString::number(delta)).width()+4;
 }
 
 qreal AbstractSeriesChart::valuesVMargin(QPainter *painter)
@@ -722,17 +722,21 @@ QFont AbstractSeriesChart::adaptLabelsFont(QRectF rect, QFont font)
     QFontMetrics fm(font);
 
     foreach(QString label, m_chartItem->labels()){
+#if QT_VERSION < 0x060000
         foreach (QString currentWord, label.split(QRegExp("\\W+"))){
-            if (fm.width(maxWord) < fm.width(currentWord)) maxWord = currentWord;
+#else
+        foreach (QString currentWord, label.split(QRegularExpression("\\W+"))){
+#endif
+            if (fm.boundingRect(maxWord).width() < fm.boundingRect(currentWord).width()) maxWord = currentWord;
         }
     }
 
-    qreal curWidth = fm.width(maxWord);
+    qreal curWidth = fm.boundingRect(maxWord).width();
     QFont tmpFont = font;
     while (curWidth>rect.width() && tmpFont.pixelSize() > 1){
         tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
         QFontMetricsF tmpFM(tmpFont);
-        curWidth = tmpFM.width(maxWord);
+        curWidth = tmpFM.boundingRect(maxWord).width();
     }
     return tmpFont;
 }
@@ -742,11 +746,11 @@ QFont AbstractSeriesChart::adaptValuesFont(qreal width, QFont font)
     QString strValue = QString::number(maxValue());
     QFont tmpFont = font;
     QScopedPointer<QFontMetricsF> fm(new QFontMetricsF(tmpFont));
-    qreal curWidth = fm->width(strValue);
+    qreal curWidth = fm->boundingRect(strValue).width();
     while (curWidth > width && tmpFont.pixelSize() > 1){
         tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
         fm.reset(new QFontMetricsF(tmpFont));
-        curWidth = fm->width(strValue);
+        curWidth = fm->boundingRect(strValue).width();
     }
     return tmpFont;
 }
@@ -803,8 +807,8 @@ QRectF AbstractBarChart::verticalLabelsRect(QPainter *painter, QRectF labelsRect
     qreal maxWidth = 0;
 
     foreach (QString label, m_chartItem->labels()) {
-        if (painter->fontMetrics().width(label)>maxWidth)
-            maxWidth = painter->fontMetrics().width(label);
+        if (painter->fontMetrics().boundingRect(label).width()>maxWidth)
+            maxWidth = painter->fontMetrics().boundingRect(label).width();
     }
 
     if (maxWidth + hPadding(m_chartItem->rect()) * 2 < labelsRect.width())
@@ -818,8 +822,8 @@ QRectF AbstractBarChart::horizontalLabelsRect(QPainter *painter, QRectF labelsRe
     qreal maxWidth = 0;
 
     foreach (QString label, m_chartItem->labels()) {
-        if (painter->fontMetrics().width(label)>maxWidth)
-            maxWidth = painter->fontMetrics().width(label);
+        if (painter->fontMetrics().boundingRect(label).width()>maxWidth)
+            maxWidth = painter->fontMetrics().boundingRect(label).width();
     }
 
     if ((maxWidth + vPadding(m_chartItem->rect()) < labelsRect.height()) || !verticalLabels(painter, labelsRect))
diff --git a/limereport/items/lrchartitemeditor.cpp b/limereport/items/lrchartitemeditor.cpp
index 92ea3fb..31a84ec 100644
--- a/limereport/items/lrchartitemeditor.cpp
+++ b/limereport/items/lrchartitemeditor.cpp
@@ -10,7 +10,7 @@ ChartItemEditor::ChartItemEditor(LimeReport::ChartItem *item, LimeReport::PageDe
 {
     ui->setupUi(this);
     QHBoxLayout* colorLayout = new QHBoxLayout();
-    colorLayout->setMargin(0);
+    colorLayout->setContentsMargins(0, 0, 0, 0);
     m_colorButton = new QToolButton();
     m_colorButton->setText("...");
     m_colorButton->setSizePolicy(QSizePolicy::Minimum,QSizePolicy::Minimum);
@@ -118,11 +118,10 @@ void ChartItemEditor::init()
         ui->seriesTypeComboBox->addItem(enumerator.key(i));
     }
 
-#ifdef HAVE_QT5
-    ui->labelsFieldComboBox->setCurrentText(m_charItem->labelsField());
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->labelsFieldComboBox->setCurrentIndex(ui->labelsFieldComboBox->findText( m_charItem->labelsField()));
+#else
+    ui->labelsFieldComboBox->setCurrentText(m_charItem->labelsField());
 #endif
     if (!m_charItem->series().isEmpty()){
         enableSeriesEditor();
@@ -150,11 +149,10 @@ void ChartItemEditor::disableSeriesEditor()
     ui->valuesFieldComboBox->setDisabled(true);
     m_colorButton->setDisabled(true);
     m_colorIndicator->setDisabled(true);
-#ifdef HAVE_QT5
-    ui->valuesFieldComboBox->setCurrentText("");
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->valuesFieldComboBox->setEditText("");
+#else
+    ui->valuesFieldComboBox->setCurrentText("");
 #endif
     ui->seriesTypeComboBox->setDisabled(true);
 }
@@ -208,11 +206,10 @@ void ChartItemEditor::slotAddSeries()
     ui->tableWidget->setRowCount(m_charItem->series().count());
     ui->tableWidget->setItem(m_charItem->series().count()-1, 0, new QTableWidgetItem(series->name()));
     ui->tableWidget->selectRow(m_charItem->series().count()-1);
-#ifdef HAVE_QT5
-    ui->valuesFieldComboBox->setCurrentText("");
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->valuesFieldComboBox->setEditText("");
+#else
+    ui->valuesFieldComboBox->setCurrentText("");
 #endif
 }
 
@@ -235,20 +232,18 @@ void ChartItemEditor::on_tableWidget_itemSelectionChanged()
     if (ui->tableWidget->selectionModel()->hasSelection()){
         LimeReport::SeriesItem* series = m_charItem->series().at(ui->tableWidget->selectionModel()->currentIndex().row());
         ui->seriesNameLineEdit->setText(series->name());
-#ifdef HAVE_QT5
-        ui->valuesFieldComboBox->setCurrentText(series->valuesColumn());
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
         ui->valuesFieldComboBox->setCurrentIndex(ui->valuesFieldComboBox->findText(series->valuesColumn()));
+#else
+        ui->valuesFieldComboBox->setCurrentText(series->valuesColumn());
 #endif
         m_colorIndicator->setColor(series->color());
         static int enumIndex = LimeReport::SeriesItem::staticMetaObject.indexOfEnumerator("SeriesItemPreferredType");
         QMetaEnum enumerator = LimeReport::SeriesItem::staticMetaObject.enumerator(enumIndex);
-#ifdef HAVE_QT5
-        ui->seriesTypeComboBox->setCurrentText(enumerator.valueToKey(series->preferredType()));
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
         ui->seriesTypeComboBox->setCurrentIndex(ui->seriesTypeComboBox->findText(enumerator.valueToKey(series->preferredType())));
+#else
+        ui->seriesTypeComboBox->setCurrentText(enumerator.valueToKey(series->preferredType()));
 #endif
         enableSeriesEditor();
     }
diff --git a/limereport/items/lrhorizontallayout.cpp b/limereport/items/lrhorizontallayout.cpp
index b7c2268..11a29d9 100644
--- a/limereport/items/lrhorizontallayout.cpp
+++ b/limereport/items/lrhorizontallayout.cpp
@@ -140,7 +140,7 @@ void HorizontalLayout::setItemAlign(const BaseDesignIntf::ItemAlign &itemAlign)
 
 void HorizontalLayout::sortChildren()
 {
-    qSort(layoutsChildren().begin(),layoutsChildren().end(),horizontalLessThen);
+    std::sort(layoutsChildren().begin(),layoutsChildren().end(),horizontalLessThen);
 }
 
 void HorizontalLayout::updateLayoutSize()
@@ -177,7 +177,7 @@ void HorizontalLayout::relocateChildren()
             layoutsChildren().append(item);
         }
     }
-    qSort(layoutsChildren().begin(),layoutsChildren().end(),horizontalLessThen);
+    std::sort(layoutsChildren().begin(),layoutsChildren().end(),horizontalLessThen);
     qreal curX = spaceBorder;
     setIsRelocating(true);
     foreach (BaseDesignIntf* item, layoutsChildren()) {
diff --git a/limereport/items/lrverticallayout.cpp b/limereport/items/lrverticallayout.cpp
index 5550896..1b1971e 100644
--- a/limereport/items/lrverticallayout.cpp
+++ b/limereport/items/lrverticallayout.cpp
@@ -63,7 +63,7 @@ void VerticalLayout::relocateChildren()
             layoutsChildren().append(item);
         }
     }
-    qSort(layoutsChildren().begin(),layoutsChildren().end(), verticalLessThen);
+    std::sort(layoutsChildren().begin(),layoutsChildren().end(), verticalLessThen);
     qreal curY = spaceBorder;
     setIsRelocating(true);
     foreach (BaseDesignIntf* item, layoutsChildren()) {
@@ -140,7 +140,7 @@ BaseDesignIntf* VerticalLayout::cloneBottomPart(int height, QObject* owner, QGra
 
 void VerticalLayout::sortChildren()
 {
-    qSort(layoutsChildren().begin(),layoutsChildren().end(),verticalLessThen);
+    std::sort(layoutsChildren().begin(),layoutsChildren().end(),verticalLessThen);
 }
 
 void VerticalLayout::divideSpace()
diff --git a/limereport/lrbanddesignintf.cpp b/limereport/lrbanddesignintf.cpp
index 6308ce1..fe7a5a6 100644
--- a/limereport/lrbanddesignintf.cpp
+++ b/limereport/lrbanddesignintf.cpp
@@ -266,7 +266,7 @@ void BandDesignIntf::paint(QPainter *painter, const QStyleOptionGraphicsItem *op
         QFontMetrics fontMetrics(font);
 
         QVector<QRectF> bandNameRects;
-        bandNameRects.push_back(QRectF(8,8,fontMetrics.width(" "+bandText+" "),fontMetrics.height()));
+        bandNameRects.push_back(QRectF(8,8,fontMetrics.boundingRect(" "+bandText+" ").width(),fontMetrics.height()));
         //bandNameRects.push_back(QRectF(width()-fontMetrics.width(" "+bandText+" "),2,fontMetrics.width(" "+bandText+" "),fontMetrics.height()));
         //bandNameRects.push_back(QRectF(2,height()-fontMetrics.height(),fontMetrics.width(" "+bandText+" "),fontMetrics.height()));
         //bandNameRects.push_back(QRectF(width()-fontMetrics.width(" "+bandText+" "),height()-fontMetrics.height(),fontMetrics.width(" "+bandText+" "),fontMetrics.height()));
@@ -487,7 +487,7 @@ QList<BandDesignIntf *> BandDesignIntf::childrenByType(BandDesignIntf::BandsType
     foreach(BandDesignIntf* item,childBands()){
         if (item->bandType()==type) resList<<item;
     }
-    qSort(resList.begin(),resList.end(),bandIndexLessThen);
+    std::sort(resList.begin(),resList.end(),bandIndexLessThen);
     return resList;
 }
 
@@ -1223,7 +1223,7 @@ void BandNameLabel::updateLabel(const QString& bandName)
     m_rect = QRectF(
                 m_band->pos().x()+10,
                 m_band->pos().y()-(fontMetrics.height()+10),
-                fontMetrics.width(bandName)+20,fontMetrics.height()+10
+                fontMetrics.boundingRect(bandName).width()+20,fontMetrics.height()+10
                 );
     update();
 }
diff --git a/limereport/lrglobal.h b/limereport/lrglobal.h
index c7a9a2e..d1a2b38 100644
--- a/limereport/lrglobal.h
+++ b/limereport/lrglobal.h
@@ -104,7 +104,11 @@ namespace Const{
     QString extractClassName(QString className);
     QString escapeSimbols(const QString& value);
     QString replaceHTMLSymbols(const QString &value);
+    #if QT_VERSION < 0x060000
     QVector<QString> normalizeCaptures(const QRegExp &reg);
+#else
+    QVector<QString> normalizeCaptures(const QRegularExpression &reg);
+#endif
     bool isColorDark(QColor color);
 
     enum ExpandType {EscapeSymbols, NoEscapeSymbols, ReplaceHTMLSymbols};
@@ -148,7 +152,7 @@ namespace Const{
         virtual ~IPainterProxy();
     };
 
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+#if QT_VERSION < 0x050000
     typedef QStyleOptionViewItemV4 StyleOptionViewItem;
 #else
     typedef QStyleOptionViewItem StyleOptionViewItem;
diff --git a/limereport/lritemdesignintf.cpp b/limereport/lritemdesignintf.cpp
index 18e46d2..86e029b 100644
--- a/limereport/lritemdesignintf.cpp
+++ b/limereport/lritemdesignintf.cpp
@@ -35,7 +35,9 @@
 #include "lrglobal.h"
 
 #include <QDebug>
+#if QT_VERSION < 0x060000
 #include <QRegExp>
+#endif
 #include <QVariant>
 
 namespace LimeReport{
diff --git a/limereport/lritemscontainerdesignitf.cpp b/limereport/lritemscontainerdesignitf.cpp
index 836fbea..441e069 100644
--- a/limereport/lritemscontainerdesignitf.cpp
+++ b/limereport/lritemscontainerdesignitf.cpp
@@ -48,7 +48,7 @@ void ItemsContainerDesignInft::snapshotItemsLayout(SnapshotType type)
         } else
             m_containerItems.append(PItemSortContainer(new ItemSortContainer(childItem)));
     }
-    qSort(m_containerItems.begin(),m_containerItems.end(),itemSortContainerLessThen);
+    std::sort(m_containerItems.begin(),m_containerItems.end(),itemSortContainerLessThen);
 }
 
 void ItemsContainerDesignInft::arrangeSubItems(RenderPass pass, DataSourceManager *dataManager, ArrangeType type)
diff --git a/limereport/lrpagedesignintf.cpp b/limereport/lrpagedesignintf.cpp
index caaa82a..f245fcb 100644
--- a/limereport/lrpagedesignintf.cpp
+++ b/limereport/lrpagedesignintf.cpp
@@ -1723,7 +1723,7 @@ HorizontalLayout* PageDesignIntf::internalAddHLayout()
 
         QList<QGraphicsItem *> si = selectedItems();
         QList<QGraphicsItem *>::iterator it = si.begin();
-        qSort(si.begin(), si.end(), hLayoutLessThen);
+        std::sort(si.begin(), si.end(), hLayoutLessThen);
         it = si.begin();
 
         if (si.count() > 1) {
@@ -1767,7 +1767,7 @@ VerticalLayout* PageDesignIntf::internalAddVLayout()
 
         QList<QGraphicsItem *> si = selectedItems();
         QList<QGraphicsItem *>::iterator it = si.begin();
-        qSort(si.begin(), si.end(), vLayoutLessThen);
+        std::sort(si.begin(), si.end(), vLayoutLessThen);
         it = si.begin();
 
         if (si.count() > 1) {
diff --git a/limereport/lrpageitemdesignintf.cpp b/limereport/lrpageitemdesignintf.cpp
index 5f6d0d8..009394b 100644
--- a/limereport/lrpageitemdesignintf.cpp
+++ b/limereport/lrpageitemdesignintf.cpp
@@ -233,7 +233,7 @@ int PageItemDesignIntf::calcBandIndex(BandDesignIntf::BandsType bandType, BandDe
     groupFooterIgnoredBands << BandDesignIntf::DataFooter << BandDesignIntf::GroupHeader;
 
     int bandIndex = -1;
-    qSort(m_bands.begin(), m_bands.end(), bandSortBandLessThenByIndex);
+    std::sort(m_bands.begin(), m_bands.end(), bandSortBandLessThenByIndex);
     if (bandType != BandDesignIntf::Data){
         foreach(BandDesignIntf* band,m_bands){
             if ((band->bandType() == BandDesignIntf::GroupHeader) && ( band->bandType() > bandType)) break;
@@ -547,7 +547,7 @@ void PageItemDesignIntf::relocateBands()
 
     QVector<qreal> posByColumn;
 
-    qSort(m_bands.begin(), m_bands.end(), bandSortBandLessThenByIndex);
+    std::sort(m_bands.begin(), m_bands.end(), bandSortBandLessThenByIndex);
 
     int bandIndex = 0;
     if (!(itemMode() & DesignMode)){
@@ -623,7 +623,7 @@ int PageItemDesignIntf::dataBandCount()
 BandDesignIntf *PageItemDesignIntf::dataBandAt(int index)
 {
     int count=0;
-    qSort(m_bands.begin(),m_bands.end(),bandSortBandLessThenByIndex);
+    std::sort(m_bands.begin(),m_bands.end(),bandSortBandLessThenByIndex);
     foreach(BandDesignIntf* band,m_bands){
         if (band->bandType()==BandDesignIntf::Data){
             if(count==index) return band;
@@ -829,7 +829,7 @@ void PageItemDesignIntf::swapBands(BandDesignIntf* band, BandDesignIntf* bandToS
 
     firstMoveBand->changeBandIndex(firstIndex, true);
     moveIndex = firstIndex;
-    qSort(bandToMove.begin(), bandToMove.end(), bandIndexLessThen);
+    std::sort(bandToMove.begin(), bandToMove.end(), bandIndexLessThen);
 
     foreach(BandDesignIntf* curBand, bandToMove){
        curBand->changeBandIndex(moveIndex,true);
@@ -852,7 +852,7 @@ QList<BandDesignIntf*> PageItemDesignIntf::createBandGroup(int beginIndex, int e
         if ( curBand->bandIndex() >= beginIndex && curBand->bandIndex() <= endIndex)
             result.append(curBand);
     }
-    qSort(result.begin(), result.end(), bandIndexLessThen);
+    std::sort(result.begin(), result.end(), bandIndexLessThen);
     return result;
 }
 
diff --git a/limereport/lrpageitemdesignintf.h b/limereport/lrpageitemdesignintf.h
index 0683cc4..1b097fd 100644
--- a/limereport/lrpageitemdesignintf.h
+++ b/limereport/lrpageitemdesignintf.h
@@ -66,6 +66,7 @@ class PageItemDesignIntf : public ItemsContainerDesignInft
     Q_PROPERTY(bool mixWithPriorPage READ mixWithPriorPage WRITE setMixWithPriorPage)
     friend class ReportRender;
 public:
+#if QT_VERSION < 0x060000
     enum Orientation { Portrait = QPrinter::Portrait, Landscape = QPrinter::Landscape };
 
     enum PrintBehavior {Scale, Split};
@@ -82,6 +83,25 @@ public:
         Ledger = QPrinter::Ledger, Tabloid = QPrinter::Tabloid, Custom = QPrinter::Custom,
         NPageSize = Custom
     };
+#else
+    enum Orientation { Portrait = QPageLayout::Portrait, Landscape = QPageLayout::Landscape };
+
+    enum PrintBehavior {Scale, Split};
+
+    enum PageSize {
+        A4 = QPageSize::A4, B5 = QPageSize::B5, Letter = QPageSize::Letter,
+        Legal = QPageSize::Legal, Executive = QPageSize::Executive,
+        A0 = QPageSize::A0, A1 = QPageSize::A1, A2 = QPageSize::A2, A3 = QPageSize::A3,
+        A5 = QPageSize::A5, A6 = QPageSize::A6, A7 = QPageSize::A7, A8 = QPageSize::A8,
+        A9 = QPageSize::A9, B0 = QPageSize::B0, B1 = QPageSize::B1, B10 = QPageSize::B10,
+        B2 = QPageSize::B2, B3 = QPageSize::B3, B4 = QPageSize::B4, B6 = QPageSize::B6,
+        B7 = QPageSize::B7, B8 = QPageSize::B8, B9 = QPageSize::B9, C5E = QPageSize::C5E,
+        Comm10E = QPageSize::Comm10E, DLE = QPageSize::DLE, Folio = QPageSize::Folio,
+        Ledger = QPageSize::Ledger, Tabloid = QPageSize::Tabloid, Custom = QPageSize::Custom,
+        NPageSize = Custom
+    };
+#endif
+
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))
     Q_ENUM(Orientation)
     Q_ENUM(PrintBehavior)
diff --git a/limereport/lrpreviewreportwidget.cpp b/limereport/lrpreviewreportwidget.cpp
index 49de4c1..4e0f1b1 100644
--- a/limereport/lrpreviewreportwidget.cpp
+++ b/limereport/lrpreviewreportwidget.cpp
@@ -143,7 +143,11 @@ void PreviewReportWidget::initPreview()
 {
     if (ui->graphicsView->scene()!=d_ptr->m_previewPage)
         ui->graphicsView->setScene(d_ptr->m_previewPage);
+    #if QT_VERSION < 0x060000
     ui->graphicsView->resetMatrix();
+#else
+    ui->graphicsView->resetTransform();
+#endif
     ui->graphicsView->centerOn(0, 0);
     ui->graphicsView->scene()->setBackgroundBrush(QColor(m_previewPageBackgroundColor));
     setScalePercent(d_ptr->m_scalePercent);
@@ -237,10 +241,9 @@ void PreviewReportWidget::print()
     QPrinter lp(QPrinter::HighResolution);
 
     if (!pi.defaultPrinter().isNull()){
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
             lp.setPrinterName(pi.defaultPrinter().printerName());
-#endif
-#ifdef HAVE_QT5
+#else
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
             lp.setPrinterName(pi.defaultPrinterName());
 #else
@@ -300,7 +303,11 @@ void PreviewReportWidget::saveToFile()
 void PreviewReportWidget::setScalePercent(int percent)
 {
     m_scaleChanging = true;
+#if QT_VERSION < 0x060000
     ui->graphicsView->resetMatrix();
+#else
+    ui->graphicsView->resetTransform();
+#endif
     d_ptr->m_scalePercent = percent;
     qreal scaleSize = percent/100.0;
     ui->graphicsView->scale(scaleSize, scaleSize);
@@ -462,7 +469,11 @@ void PreviewReportWidget::reportEngineDestroyed(QObject *object)
 
 void PreviewReportWidget::slotZoomed(double )
 {
+#if QT_VERSION < 0x060000
     d_ptr->m_scalePercent = ui->graphicsView->matrix().m11()*100;
+#else
+    d_ptr->m_scalePercent = ui->graphicsView->transform().m11()*100;
+#endif
     emit scalePercentChanged(d_ptr->m_scalePercent);
 }
 
diff --git a/limereport/lrpreviewreportwindow.cpp b/limereport/lrpreviewreportwindow.cpp
index a69e063..9494042 100644
--- a/limereport/lrpreviewreportwindow.cpp
+++ b/limereport/lrpreviewreportwindow.cpp
@@ -41,7 +41,11 @@
 #include <QPrintDialog>
 #include <QFileDialog>
 #include <QScrollBar>
+#if QT_VERSION < 0x060000
 #include <QDesktopWidget>
+#else
+#include <QScreen>
+#endif
 #include <QLabel>
 #include <QMessageBox>
 #include <QToolButton>
@@ -57,7 +61,7 @@ PreviewReportWindow::PreviewReportWindow(ReportEngine *report, QWidget *parent,
 
     m_progressWidget = new QWidget(ui->statusbar);
     QHBoxLayout* progressLayout = new QHBoxLayout();
-    progressLayout->setMargin(0);
+    progressLayout->setContentsMargins(0, 0, 0, 0);
     progressLayout->addWidget(new QLabel(tr("Printing")));
     m_progressBar = new QProgressBar(ui->statusbar);
     m_progressBar->setMaximumWidth(100);
@@ -139,11 +143,17 @@ void PreviewReportWindow::restoreSetting()
     if (v.isValid()){
         restoreGeometry(v.toByteArray());
     } else {
+#if QT_VERSION < 0x060000
         QDesktopWidget *desktop = QApplication::desktop();
 
         int screenWidth = desktop->screenGeometry().width();
         int screenHeight = desktop->screenGeometry().height();
+#else
+        QScreen *screen = QGuiApplication::primaryScreen();
 
+        int screenWidth = screen->geometry().width();
+        int screenHeight = screen->geometry().height();
+#endif
         int x = static_cast<int>(screenWidth*0.1);
         int y = static_cast<int>(screenHeight*0.1);
 
diff --git a/limereport/lrpreviewreportwindow.h b/limereport/lrpreviewreportwindow.h
index 6c3648e..68b58ad 100644
--- a/limereport/lrpreviewreportwindow.h
+++ b/limereport/lrpreviewreportwindow.h
@@ -60,7 +60,7 @@ class PreviewReportWindow : public QMainWindow
 {
     Q_OBJECT   
 public:
-    explicit PreviewReportWindow(ReportEngine *report, QWidget *parent = 0, QSettings* settings=0, Qt::WindowFlags flags=0);
+    explicit PreviewReportWindow(ReportEngine *report, QWidget *parent = 0, QSettings* settings=0, Qt::WindowFlags flags=Qt::WindowFlags());
     ~PreviewReportWindow();
     void setReportReader(ItemsReaderIntf::Ptr reader);
     void setPages(ReportPages pages);
diff --git a/limereport/lrreportdesignwidget.cpp b/limereport/lrreportdesignwidget.cpp
index 9ec58ad..235a4f8 100644
--- a/limereport/lrreportdesignwidget.cpp
+++ b/limereport/lrreportdesignwidget.cpp
@@ -59,10 +59,9 @@ ReportDesignWidget::ReportDesignWidget(ReportEnginePrivateInterface* report, QSe
     m_mainWindow(mainWindow), m_verticalGridStep(10), m_horizontalGridStep(10), m_useGrid(false),
     m_dialogChanged(false), m_theme("Default"), m_settings(settings), m_defaultUnits(BaseDesignIntf::Millimeters)
 {
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     m_tabWidget = new LimeReportTabWidget(this);
-#endif
-#ifdef HAVE_QT5
+#else
     m_tabWidget = new QTabWidget(this);
 #endif
     m_tabWidget->setTabPosition(QTabWidget::South);
@@ -1132,10 +1131,10 @@ void Ruler::setPage(PageItemDesignIntf *page)
 
 void Ruler::paintEvent(QPaintEvent *event){
     QPainter painter(this);
-    painter.setBrush(palette().background());
+    painter.setBrush(palette().window());
     painter.setPen(Qt::NoPen);
     painter.drawRect(event->rect());
-//    painter.setPen(palette().foreground().color());
+//    painter.setPen(palette().windowText().color());
 
     if (m_page){
         qreal rulerWidth = m_page->geometry().width() / m_page->unitFactor();
@@ -1154,13 +1153,13 @@ void Ruler::paintEvent(QPaintEvent *event){
         case Horizontal:
             painter.setPen(Qt::NoPen);
 
-            if (isColorDark(palette().background().color()))
+            if (isColorDark(palette().window().color()))
                 painter.setBrush(QColor("#64893d"));
             else
                 painter.setBrush(QColor("#b5da91"));
 
             drawItemWithChildren(&painter, m_page);
-            painter.setPen(palette().foreground().color());
+            painter.setPen(palette().windowText().color());
 
             for (int i = 0; i < rulerWidth / 10; ++i){
                 int hs10 = view->mapFromScene(QPointF(m_page->geometry().topLeft().x() + i * 10 * m_page->unitFactor(), 0)).x();
@@ -1173,24 +1172,24 @@ void Ruler::paintEvent(QPaintEvent *event){
                     painter.drawLine(hs10, 15, hs10, 20);
                     painter.drawLine(hs5, 10, hs5, 20);
                     if ( i > 0)
-                        painter.drawText(QPoint(hs10 - (painter.fontMetrics().width(QString::number(i))/2), 12),
+                        painter.drawText(QPoint(hs10 - (painter.fontMetrics().boundingRect(QString::number(i)).width()/2), 12),
                                          QString::number(i));
                 }
             }
-            painter.setPen(palette().foreground().color());
+            painter.setPen(palette().windowText().color());
             painter.drawLine(m_mousePos.x() - (hStartPos > 0 ? hStartPos : 0) , 0,
                              m_mousePos.x() - (hStartPos > 0 ? hStartPos : 0) , 20);
             break;
         case Vertical:
             painter.setPen(Qt::NoPen);
 
-            if (isColorDark(palette().background().color()))
+            if (isColorDark(palette().window().color()))
                 painter.setBrush(QColor("#64893d"));
             else
                 painter.setBrush(QColor("#b5da91"));
 
             drawItemWithChildren(&painter, m_page);
-            painter.setPen(palette().foreground().color());
+            painter.setPen(palette().windowText().color());
             for (int i = 0; i < rulerHeight / 10; ++i){
                 int vs10 = view->mapFromScene(QPointF(0, m_page->geometry().topLeft().y()+i * 10 * m_page->unitFactor())).y();
                 int vs5  = view->mapFromScene(QPointF(0, m_page->geometry().topLeft().y()+i * 10 * m_page->unitFactor() + 5 * m_page->unitFactor())).y();
@@ -1201,12 +1200,12 @@ void Ruler::paintEvent(QPaintEvent *event){
                     }
                     painter.drawLine(15, vs10, 20, vs10);
                     if ( i > 0 )
-                        painter.drawText(QPoint( (15 - painter.fontMetrics().width(QString::number(i))) / 2 ,
+                        painter.drawText(QPoint( (15 - painter.fontMetrics().boundingRect(QString::number(i)).width()) / 2 ,
                                                  vs10 + (painter.fontMetrics().height()/2)), QString::number(i));
                     painter.drawLine(10, vs5, 20, vs5);
                 }
             }
-            painter.setPen(palette().foreground().color());
+            painter.setPen(palette().windowText().color());
             painter.drawLine(0, m_mousePos.y() - (vStartPos > 0 ? vStartPos : 0),
                              20, m_mousePos.y() - (vStartPos > 0 ? vStartPos : 0));
             break;
diff --git a/limereport/lrreportdesignwidget.h b/limereport/lrreportdesignwidget.h
index d95310a..8057f13 100644
--- a/limereport/lrreportdesignwidget.h
+++ b/limereport/lrreportdesignwidget.h
@@ -42,7 +42,7 @@
 #include "lrreportengine_p.h"
 #include "lrgraphicsviewzoom.h"
 
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
 QT_BEGIN_NAMESPACE
 class LimeReportTabWidget: public QTabWidget{
     Q_OBJECT
@@ -259,10 +259,9 @@ private:
     DialogDesignerManager* m_dialogDesignerManager;
 #endif
     QMainWindow *m_mainWindow;
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     LimeReportTabWidget* m_tabWidget;
-#endif
-#ifdef HAVE_QT5
+#else
     QTabWidget* m_tabWidget;
 #endif
     GraphicsViewZoomer* m_zoomer;
diff --git a/limereport/lrreportdesignwindow.cpp b/limereport/lrreportdesignwindow.cpp
index 9052a19..798464b 100644
--- a/limereport/lrreportdesignwindow.cpp
+++ b/limereport/lrreportdesignwindow.cpp
@@ -39,7 +39,11 @@
 #include <QMenuBar>
 #include <QCheckBox>
 #include <QVBoxLayout>
+#if QT_VERSION < 0x060000
 #include <QDesktopWidget>
+#else
+#include <QScreen>
+#endif
 #include <QSortFilterProxyModel>
 #include <QLineEdit>
 #include <QPushButton>
@@ -69,7 +73,7 @@ void ReportDesignWindow::createProgressBar()
 {
     m_progressWidget = new QWidget(m_statusBar);
     QHBoxLayout* progressLayout = new QHBoxLayout();
-    progressLayout->setMargin(0);
+    progressLayout->setContentsMargins(0, 0, 0, 0);
     m_progressLabel = new QLabel(tr("Rendered %1 pages").arg(0));
     progressLayout->addWidget(m_progressLabel);
     m_progressBar = new QProgressBar(m_statusBar);
@@ -149,7 +153,7 @@ void ReportDesignWindow::createActions()
 {
     m_newReportAction = new QAction(tr("New Report"),this);
     m_newReportAction->setIcon(QIcon(":/report/images/newReport"));
-    m_newReportAction->setShortcut(QKeySequence(Qt::CTRL+Qt::Key_N));
+    m_newReportAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_N));
     connect(m_newReportAction,SIGNAL(triggered()),this,SLOT(slotNewReport()));
 
     m_newPageAction = new QAction(tr("New Report Page"),this);
@@ -171,28 +175,28 @@ void ReportDesignWindow::createActions()
     m_undoAction = new QAction(tr("Undo"),this);
     m_undoAction->setIcon(QIcon(":/report/images/undo"));
     m_undoAction->setEnabled(false);
-    m_undoAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Z));
+    m_undoAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_Z));
     connect(m_undoAction,SIGNAL(triggered()),this,SLOT(slotUndo()));
 
     m_redoAction = new QAction(tr("Redo"),this);
     m_redoAction->setIcon(QIcon(":/report/images/redo"));
     m_redoAction->setEnabled(false);
-    m_redoAction->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_Z));
+    m_redoAction->setShortcut(QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_Z));
     connect(m_redoAction,SIGNAL(triggered()),this,SLOT(slotRedo()));
 
     m_copyAction = new QAction(tr("Copy"),this);
     m_copyAction->setIcon(QIcon(":/report/images/copy"));
-    m_copyAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_C));
+    m_copyAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_C));
     connect(m_copyAction,SIGNAL(triggered()),this,SLOT(slotCopy()));
 
     m_pasteAction = new QAction(tr("Paste"),this);
     m_pasteAction->setIcon(QIcon(":/report/images/paste"));
-    m_pasteAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_V));
+    m_pasteAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_V));
     connect(m_pasteAction,SIGNAL(triggered()),this,SLOT(slotPaste()));
 
     m_cutAction = new QAction(tr("Cut"),this);
     m_cutAction->setIcon(QIcon(":/report/images/cut"));
-    m_cutAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_X));
+    m_cutAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_X));
     connect(m_cutAction,SIGNAL(triggered()),this,SLOT(slotCut()));
 
     m_settingsAction = new QAction(tr("Settings"),this);
@@ -202,13 +206,13 @@ void ReportDesignWindow::createActions()
     m_useGridAction = new QAction(tr("Use grid"),this);
     m_useGridAction->setIcon(QIcon(":/report/images/grid"));
     m_useGridAction->setCheckable(true);
-    m_useGridAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_G));
+    m_useGridAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_G));
     connect(m_useGridAction,SIGNAL(toggled(bool)),this,SLOT(slotUseGrid(bool)));
 
     m_useMagnetAction = new QAction(tr("Use magnet"),this);
     m_useMagnetAction->setIcon(QIcon(":/report/images/magnet"));
     m_useMagnetAction->setCheckable(true);
-    m_useMagnetAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_M));
+    m_useMagnetAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_M));
     connect(m_useMagnetAction,SIGNAL(toggled(bool)),this,SLOT(slotUseMagnet(bool)));
 
     
@@ -219,17 +223,17 @@ void ReportDesignWindow::createActions()
 
     m_saveReportAction = new QAction(tr("Save Report"),this);
     m_saveReportAction->setIcon(QIcon(":/report/images/save"));
-    m_saveReportAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_S));
+    m_saveReportAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_S));
     connect(m_saveReportAction,SIGNAL(triggered()),this,SLOT(slotSaveReport()));
 
     m_saveReportAsAction = new QAction(tr("Save Report As"),this);
     m_saveReportAsAction->setIcon(QIcon(":/report/images/saveas"));
-    m_saveReportAsAction->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_S));
+    m_saveReportAsAction->setShortcut(QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_S));
     connect(m_saveReportAsAction,SIGNAL(triggered()),this,SLOT(slotSaveReportAs()));
 
     m_loadReportAction = new QAction(tr("Load Report"),this);
     m_loadReportAction->setIcon(QIcon(":/report/images/folder"));
-    m_loadReportAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_O));
+    m_loadReportAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_O));
     connect(m_loadReportAction,SIGNAL(triggered()),this,SLOT(slotLoadReport()));
 
     m_deleteItemAction = new QAction(tr("Delete item"),this);
@@ -247,7 +251,7 @@ void ReportDesignWindow::createActions()
 
     m_previewReportAction = new QAction(tr("Render Report"),this);
     m_previewReportAction->setIcon(QIcon(":/report/images/render"));
-    m_previewReportAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_P));
+    m_previewReportAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_P));
     connect(m_previewReportAction,SIGNAL(triggered()),this,SLOT(slotPreviewReport()));
 
     m_testAction = new QAction("test",this);
@@ -274,13 +278,13 @@ void ReportDesignWindow::createActions()
     m_hideLeftPanel = new QAction(tr("Hide left panel | Alt+L"),this);
     m_hideLeftPanel->setCheckable(true);
     m_hideLeftPanel->setIcon(QIcon(":/report/images/hideLeftPanel"));
-    m_hideLeftPanel->setShortcut(QKeySequence(Qt::ALT + Qt::Key_L));
+    m_hideLeftPanel->setShortcut(QKeySequence(Qt::ALT | Qt::Key_L));
     connect(m_hideLeftPanel,SIGNAL(toggled(bool)), this, SLOT(slotHideLeftPanel(bool)));
 
     m_hideRightPanel = new QAction(tr("Hide right panel | Alt+R"),this);
     m_hideRightPanel->setCheckable(true);
     m_hideRightPanel->setIcon(QIcon(":/report/images/hideRightPanel"));
-    m_hideRightPanel->setShortcut(QKeySequence(Qt::ALT + Qt::Key_R));
+    m_hideRightPanel->setShortcut(QKeySequence(Qt::ALT | Qt::Key_R));
     connect(m_hideRightPanel,SIGNAL(toggled(bool)), this, SLOT(slotHideRightPanel(bool)));
 #ifdef HAVE_QTDESIGNER_INTEGRATION
     m_deleteDialogAction = new QAction(tr("Delete dialog"), this);
@@ -294,19 +298,19 @@ void ReportDesignWindow::createActions()
 
     m_lockSelectedItemsAction = new QAction(tr("Lock selected items"), this);
     m_lockSelectedItemsAction->setIcon(QIcon(":/report/images/lock"));
-    m_lockSelectedItemsAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));
+    m_lockSelectedItemsAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_L));
     connect(m_lockSelectedItemsAction, SIGNAL(triggered()),
             this, SLOT(slotLockSelectedItems()));
 
     m_unlockSelectedItemsAction = new QAction(tr("Unlock selected items"), this);
     m_unlockSelectedItemsAction->setIcon(QIcon(":/report/images/unlock"));
-    m_unlockSelectedItemsAction->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_L));
+    m_unlockSelectedItemsAction->setShortcut(QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_L));
     connect(m_unlockSelectedItemsAction, SIGNAL(triggered()),
             this, SLOT(slotUnlockSelectedItems()));
 
     m_selectOneLevelItems = new QAction(tr("Select one level items"), this);
     //m_unlockSelectedItemsAction->setIcon(QIcon(":/report/images/unlock"));
-    m_selectOneLevelItems->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_A));
+    m_selectOneLevelItems->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_A));
     connect(m_selectOneLevelItems, SIGNAL(triggered()),
             this, SLOT(slotSelectOneLevelItems()));
 }
@@ -567,7 +571,7 @@ void ReportDesignWindow::createObjectInspector()
     QWidget* w = new QWidget(objectDoc);
     QVBoxLayout* l = new QVBoxLayout(w);
     l->addWidget(m_objectInspector);
-    l->setMargin(0);
+    l->setContentsMargins(0, 0, 0, 0);
     w->setLayout(l);
     objectDoc->setWindowTitle(tr("Object Inspector"));
     objectDoc->setWidget(w);
@@ -833,11 +837,18 @@ void ReportDesignWindow::restoreSetting()
     if (v.isValid()){
         restoreGeometry(v.toByteArray());
     } else {
+#if QT_VERSION < 0x060000
         QDesktopWidget *desktop = QApplication::desktop();
 
         int screenWidth = desktop->screenGeometry().width();
         int screenHeight = desktop->screenGeometry().height();
 
+#else
+        QScreen *screen = QGuiApplication::primaryScreen();
+
+        int screenWidth = screen->geometry().width();
+        int screenHeight = screen->geometry().height();
+#endif
         int x = screenWidth * 0.1;
         int y = screenHeight * 0.1;
 
diff --git a/limereport/lrreportengine.cpp b/limereport/lrreportengine.cpp
index 72d53ad..ffb8e06 100644
--- a/limereport/lrreportengine.cpp
+++ b/limereport/lrreportengine.cpp
@@ -32,7 +32,11 @@
 #include <QPrinterInfo>
 #include <QMessageBox>
 #include <QApplication>
+#if QT_VERSION < 0x060000
 #include <QDesktopWidget>
+#else
+#include <QScreen>
+#endif
 #include <QFileSystemWatcher>
 #include <QPluginLoader>
 #include <QFileDialog>
@@ -272,10 +276,9 @@ bool ReportEnginePrivate::printPages(ReportPages pages, QPrinter *printer)
     if (!printer&&!m_printerSelected){
         QPrinterInfo pi;
         if (!pi.defaultPrinter().isNull())
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
             m_printer.data()->setPrinterName(pi.defaultPrinter().printerName());
-#endif
-#ifdef HAVE_QT5
+#else
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
         m_printer.data()->setPrinterName(pi.defaultPrinterName());
 #else
@@ -394,10 +397,9 @@ bool ReportEnginePrivate::printReport(QPrinter* printer)
     if (!printer&&!m_printerSelected){
         QPrinterInfo pi;
         if (!pi.defaultPrinter().isNull())
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
             m_printer.data()->setPrinterName(pi.defaultPrinter().printerName());
-#endif
-#ifdef HAVE_QT5
+#else
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
             m_printer.data()->setPrinterName(pi.defaultPrinterName());
 #else
diff --git a/limereport/lrreportrender.cpp b/limereport/lrreportrender.cpp
index 904d30e..f5f0867 100644
--- a/limereport/lrreportrender.cpp
+++ b/limereport/lrreportrender.cpp
@@ -1142,10 +1142,9 @@ bool ReportRender::registerBand(BandDesignIntf *band, bool registerInChildren)
         band->setObjectName(band->objectName()+QString::number(++m_currentNameIndex));
         renameChildItems(band);
         if (m_lastDataBand){
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
             m_lastDataBand->metaObject()->invokeMethod(m_lastDataBand,"bandRegistred");
-#endif
-#ifdef HAVE_QT5
+#else
             emit m_lastDataBand->bandRegistred();
 #endif
         }
@@ -1428,7 +1427,7 @@ void ReportRender::checkLostHeadersOnPrevPage()
 
     if (lostHeaders.size() > 0){
         m_lostHeadersMoved = true;
-        //qSort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
+        //std::sort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
         std::sort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
         foreach(BandDesignIntf* header, lostHeaders){
             registerBand(header);
@@ -1466,7 +1465,7 @@ void ReportRender::checkLostHeadersInPrevColumn()
 
     if (lostHeaders.size() > 0){
         m_lostHeadersMoved = true;
-//        qSort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
+//        std::sort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
         std::sort(lostHeaders.begin(), lostHeaders.end(), bandLessThen);
         foreach(BandDesignIntf* header, lostHeaders){
             registerBand(header);
diff --git a/limereport/lrsettingdialog.cpp b/limereport/lrsettingdialog.cpp
index 05374a3..53ef9ab 100644
--- a/limereport/lrsettingdialog.cpp
+++ b/limereport/lrsettingdialog.cpp
@@ -106,7 +106,7 @@ void SettingDialog::setScritpTabIndention(int size)
 
 void SettingDialog::setTheme(const QString &theme)
 {
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->cbTheme->setCurrentIndex(ui->cbTheme->findText(theme));
 #else
     ui->cbTheme->setCurrentText(theme);
@@ -128,7 +128,7 @@ void SettingDialog::setDesignerLanguages(QList<QLocale::Language> languages, QLo
         if (language != currentLanguage)
             ui->designerLanguage->addItem(QLocale::languageToString(language));
     }
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->designerLanguage->setCurrentIndex(ui->designerLanguage->findText(QLocale::languageToString(currentLanguage)));
 #else
     ui->designerLanguage->setCurrentText(QLocale::languageToString(currentLanguage));
@@ -139,7 +139,7 @@ void SettingDialog::setDesignerThemes(QList<QString> themes, const QString &curr
 {
     ui->cbTheme->clear();
     ui->cbTheme->addItems(themes);
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->cbTheme->setCurrentIndex(ui->cbTheme->findText(currentTheme));
 #else
     ui->cbTheme->setCurrentText(currentTheme);
@@ -150,7 +150,7 @@ void SettingDialog::setDesignerUnites(QList<QString> unitTypes, const QString cu
 {
     ui->reportUnits->clear();
     ui->reportUnits->addItems(unitTypes);
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->cbTheme->setCurrentIndex(ui->cbTheme->findText(currentUnitType));
 #else
     ui->reportUnits->setCurrentText(currentUnitType);
diff --git a/limereport/objectinspector/editors/lrbuttonlineeditor.cpp b/limereport/objectinspector/editors/lrbuttonlineeditor.cpp
index 033861e..4eead43 100644
--- a/limereport/objectinspector/editors/lrbuttonlineeditor.cpp
+++ b/limereport/objectinspector/editors/lrbuttonlineeditor.cpp
@@ -34,7 +34,11 @@
 #include <QFocusEvent>
 #include <QApplication>
 #include <QStyle>
+#if QT_VERSION < 0x060000
 #include <QDesktopWidget>
+#else
+#include <QScreen>
+#endif
 #include "lrtextitempropertyeditor.h"
 
 namespace LimeReport{
@@ -66,7 +70,11 @@ void ButtonLineEditor::editButtonClicked()
 {
     TextItemPropertyEditor* editor = new TextItemPropertyEditor(QApplication::activeWindow());
     editor->setAttribute(Qt::WA_DeleteOnClose);
+#if QT_VERSION < 0x060000
     editor->setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, editor->size(), QApplication::desktop()->availableGeometry()));
+#else
+    editor->setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, editor->size(), QGuiApplication::screens().first()->availableGeometry()));
+#endif
     editor->setWindowTitle(m_propertyName);
     editor->setText(m_lineEdit->text());
     connect(editor,SIGNAL(accepted()),this,SLOT(editingByEditorFinished()));
diff --git a/limereport/objectinspector/lrobjectinspectorwidget.cpp b/limereport/objectinspector/lrobjectinspectorwidget.cpp
index af6bf36..9fd3852 100644
--- a/limereport/objectinspector/lrobjectinspectorwidget.cpp
+++ b/limereport/objectinspector/lrobjectinspectorwidget.cpp
@@ -167,8 +167,12 @@ void ObjectInspectorTreeView::commitActiveEditorData(){
 bool PropertyFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
 {
     QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
-    if (sourceParent.isValid()) return true;
+    if (sourceParent.isValid()) return true;    
+#if QT_VERSION < 0x060000
     return sourceModel()->data(index).toString().contains(filterRegExp());
+#else
+    return sourceModel()->data(index).toString().contains(filterRegularExpression());
+#endif
 }
 
 ObjectInspectorWidget::ObjectInspectorWidget(QWidget *parent)
@@ -209,7 +213,8 @@ ObjectInspectorWidget::ObjectInspectorWidget(QWidget *parent)
     h->addWidget(settingButton);
     l->addLayout(h);
     l->addWidget(m_objectInspectorView);
-    l->setMargin(Const::DOCKWIDGET_MARGINS);
+    int margin = Const::DOCKWIDGET_MARGINS;
+    l->setContentsMargins(margin, margin, margin, margin);
     l->setSpacing(2);
     this->setLayout(l);
 }
diff --git a/limereport/objectinspector/lrobjectpropitem.cpp b/limereport/objectinspector/lrobjectpropitem.cpp
index f827c46..638dd4c 100644
--- a/limereport/objectinspector/lrobjectpropitem.cpp
+++ b/limereport/objectinspector/lrobjectpropitem.cpp
@@ -93,7 +93,7 @@ void ObjectPropItem::appendItem(ObjectPropItem *item){
 
 void ObjectPropItem::sortItem()
 {
-    qSort(m_childItems.begin(), m_childItems.end(), lesThen);
+    std::sort(m_childItems.begin(), m_childItems.end(), lesThen);
 }
 
 QVariant ObjectPropItem::propertyValue() const {
diff --git a/limereport/objectsbrowser/lrobjectbrowser.cpp b/limereport/objectsbrowser/lrobjectbrowser.cpp
index a3db497..dd2177e 100644
--- a/limereport/objectsbrowser/lrobjectbrowser.cpp
+++ b/limereport/objectsbrowser/lrobjectbrowser.cpp
@@ -40,7 +40,8 @@ ObjectBrowser::ObjectBrowser(QWidget *parent)
 {
     QVBoxLayout *layout = new QVBoxLayout(this);
     setLayout(layout);
-    layout->setMargin(Const::DOCKWIDGET_MARGINS);
+    int margin = Const::DOCKWIDGET_MARGINS;
+    layout->setContentsMargins(margin, margin, margin, margin);
     m_treeView = new QTreeWidget(this);
     layout->addWidget(m_treeView);
     m_treeView->headerItem()->setText(0,tr("Objects"));
diff --git a/limereport/scriptbrowser/lrscriptbrowser.cpp b/limereport/scriptbrowser/lrscriptbrowser.cpp
index 052b6ce..ae8ddc5 100644
--- a/limereport/scriptbrowser/lrscriptbrowser.cpp
+++ b/limereport/scriptbrowser/lrscriptbrowser.cpp
@@ -43,7 +43,8 @@ ScriptBrowser::ScriptBrowser(QWidget *parent) :
     ui(new Ui::ScriptBrowser)
 {
     ui->setupUi(this);
-    ui->verticalLayout->setMargin(Const::DOCKWIDGET_MARGINS);
+    int margin = Const::DOCKWIDGET_MARGINS;
+    ui->verticalLayout->setContentsMargins(margin, margin, margin, margin);
 #ifndef HAVE_UI_LOADER
     ui->tpDialogs->setVisible(false);
     ui->tabWidget->removeTab(ui->tabWidget->indexOf(ui->tpDialogs));
diff --git a/limereport/scripteditor/lrcodeeditor.cpp b/limereport/scripteditor/lrcodeeditor.cpp
index c983dd9..772b064 100644
--- a/limereport/scripteditor/lrcodeeditor.cpp
+++ b/limereport/scripteditor/lrcodeeditor.cpp
@@ -46,8 +46,8 @@ void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent* event)
     QPainter painter(lineNumberArea);
     QStyleOption option;
     option.initFrom(this);
-    //painter.fillRect(event->rect(), QPalette().background().color());
-    QColor bg = option.palette.background().color().darker(150);
+    //painter.fillRect(event->rect(), QPalette().window().color());
+    QColor bg = option.palette.window().color().darker(150);
     painter.fillRect(event->rect(), bg);
 
     QTextBlock block = firstVisibleBlock();
@@ -79,7 +79,7 @@ int CodeEditor::lineNumberAreaWidth()
         ++digits;
     }
 
-    int space = fontMetrics().width(QLatin1Char('9'))*2 + fontMetrics().width(QLatin1Char('9')) * digits;
+    int space = fontMetrics().boundingRect(QLatin1Char('9')).width()*2 + fontMetrics().boundingRect(QLatin1Char('9')).width() * digits;
 
     return space;
 }
@@ -300,7 +300,7 @@ void CodeEditor::highlightCurrentLine()
     if (!isReadOnly()) {
         QTextEdit::ExtraSelection selection;
 
-        QColor lineColor = QColor(QPalette().background().color()).darker(100);
+        QColor lineColor = QColor(QPalette().window().color()).darker(100);
 
         selection.format.setBackground(lineColor);
         selection.format.setProperty(QTextFormat::FullWidthSelection, true);
diff --git a/limereport/scripteditor/lrscripteditor.cpp b/limereport/scripteditor/lrscripteditor.cpp
index 7c9656d..34e2c74 100644
--- a/limereport/scripteditor/lrscripteditor.cpp
+++ b/limereport/scripteditor/lrscripteditor.cpp
@@ -20,7 +20,11 @@ ScriptEditor::ScriptEditor(QWidget *parent) :
     setFocusProxy(ui->textEdit);
     m_completer = new ReportStructureCompleater(this);
     ui->textEdit->setCompleter(m_completer);
-    ui->textEdit->setTabStopWidth(ui->textEdit->fontMetrics().width("0")*m_tabIndention);
+#if QT_VERSION < 0x060000
+    ui->textEdit->setTabStopWidth(ui->textEdit->fontMetrics().boundingRect("0").width()*m_tabIndention);
+#else
+    ui->textEdit->setTabStopDistance(ui->textEdit->fontMetrics().boundingRect("0").width()*m_tabIndention);
+#endif
     connect(ui->splitter, SIGNAL(splitterMoved(int,int)), this, SIGNAL(splitterMoved(int,int)));
     connect(ui->textEdit, SIGNAL(textChanged()), this, SIGNAL(textChanged()));
 }
@@ -86,7 +90,11 @@ void ScriptEditor::setPageBand(BandDesignIntf* band)
 void ScriptEditor::setTabIndention(int charCount)
 {
     if (m_tabIndention != charCount){
-        ui->textEdit->setTabStopWidth(ui->textEdit->fontMetrics().width("W")*charCount);
+#if QT_VERSION < 0x060000
+        ui->textEdit->setTabStopWidth(ui->textEdit->fontMetrics().boundingRect("W").width()*charCount);
+#else
+        ui->textEdit->setTabStopDistance(ui->textEdit->fontMetrics().boundingRect("W").width()*charCount);
+#endif
         m_tabIndention = charCount;
     }
 }
diff --git a/limereport/scripteditor/lrscripthighlighter.cpp b/limereport/scripteditor/lrscripthighlighter.cpp
index a3aaf48..1877223 100644
--- a/limereport/scripteditor/lrscripthighlighter.cpp
+++ b/limereport/scripteditor/lrscripthighlighter.cpp
@@ -247,7 +247,7 @@ ScriptHighlighter::ScriptHighlighter(QTextDocument* parent):
         m_keywords.insert(keywords[i]);
     }
 
-    if ( isColorDark(QPalette().background().color())){
+    if ( isColorDark(QPalette().window().color())){
         m_formats[NumberFormat].setForeground(Qt::darkBlue);
         m_formats[StringFormat].setForeground(Qt::darkGreen);
         m_formats[KeywordFormat].setForeground(Qt::darkYellow);
diff --git a/limereport/serializators/lrxmlbasetypesserializators.cpp b/limereport/serializators/lrxmlbasetypesserializators.cpp
index d9a1f1c..d5f0fb9 100644
--- a/limereport/serializators/lrxmlbasetypesserializators.cpp
+++ b/limereport/serializators/lrxmlbasetypesserializators.cpp
@@ -197,7 +197,7 @@ QVariant XmlFontSerializator::loadValue()
 //#if QT_VERSION>0x040800
 //    font.setStyleName(node()->attribute("stylename"));
 //#endif
-    font.setWeight(node()->attribute("weight").toInt());
+    font.setWeight(static_cast<QFont::Weight>(node()->attribute("weight").toInt()));
     if (!node()->attribute("bold").isEmpty())
       font.setBold(node()->attribute("bold").toInt());
     font.setItalic(node()->attribute("italic").toInt());
diff --git a/limereport/translationeditor/languageselectdialog.cpp b/limereport/translationeditor/languageselectdialog.cpp
index 64265c8..62aefb3 100644
--- a/limereport/translationeditor/languageselectdialog.cpp
+++ b/limereport/translationeditor/languageselectdialog.cpp
@@ -12,11 +12,10 @@ LanguageSelectDialog::LanguageSelectDialog(QWidget *parent) :
     for (int i = 2; i<QLocale::LastLanguage; ++i){
         ui->comboBox->addItem(QLocale::languageToString(static_cast<QLocale::Language>(i)),static_cast<QLocale::Language>(i));
     }
-#ifdef HAVE_QT5
-    ui->comboBox->setCurrentText("");
-#endif
-#ifdef HAVE_QT4
+#if QT_VERSION < 0x050000
     ui->comboBox->setEditText("");
+#else
+    ui->comboBox->setCurrentText("");
 #endif
 }