diff --git a/pip b/pip
index 3965e54..f033119 160000
--- a/pip
+++ b/pip
@@ -1 +1 @@
-Subproject commit 3965e54e38cbb23e8103e1e09a49910d5b5957b3
+Subproject commit f033119a8bf82633146c458d1165377661df1c9f
diff --git a/piqt/utils/qpicalculator/CMakeLists.txt b/piqt/utils/qpicalculator/CMakeLists.txt
new file mode 100644
index 0000000..27ecf2c
--- /dev/null
+++ b/piqt/utils/qpicalculator/CMakeLists.txt
@@ -0,0 +1,14 @@
+project(qpicalc)
+if(APPLE)
+	set(APP_ICON "")
+elseif(WIN32)
+	set(APP_ICON "icons/qpicalculator.ico")
+else()
+	set(APP_ICON "icons/qpicalculator.png")
+endif()
+set(APP_INFO "Small calculator ang grapher")
+qad_application(${PROJECT_NAME} "Gui;Widgets" "qad_utils;qad_widgets;qad_graphic")
+if (Qt5_FOUND)
+	import_version(${PROJ_NAME}5 ${PROJECT_NAME})
+	deploy_target(${PROJECT_NAME}5 DEPLOY_DIR ${CMAKE_CURRENT_BINARY_DIR} DESTINATION ${ROOT_DIR}/release)
+endif()
diff --git a/piqt/utils/qpicalculator/icons/qpicalculator.ico b/piqt/utils/qpicalculator/icons/qpicalculator.ico
new file mode 100644
index 0000000..99388c5
Binary files /dev/null and b/piqt/utils/qpicalculator/icons/qpicalculator.ico differ
diff --git a/piqt/utils/qpicalculator/icons/qpicalculator.png b/piqt/utils/qpicalculator/icons/qpicalculator.png
new file mode 100644
index 0000000..dad22b7
Binary files /dev/null and b/piqt/utils/qpicalculator/icons/qpicalculator.png differ
diff --git a/piqt/utils/qpicalculator/main.cpp b/piqt/utils/qpicalculator/main.cpp
new file mode 100644
index 0000000..afb41cf
--- /dev/null
+++ b/piqt/utils/qpicalculator/main.cpp
@@ -0,0 +1,13 @@
+#include <QApplication>
+#include "mainwindow.h"
+
+
+int main(int argc, char *argv[]) {
+	QApplication a(argc, argv);
+#if QT_VERSION >= 0x050000
+	a.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
+#endif
+	MainWindow w;
+	w.show();
+	return a.exec();
+}
diff --git a/piqt/utils/qpicalculator/mainwindow.cpp b/piqt/utils/qpicalculator/mainwindow.cpp
new file mode 100644
index 0000000..4381f41
--- /dev/null
+++ b/piqt/utils/qpicalculator/mainwindow.cpp
@@ -0,0 +1,261 @@
+#include "mainwindow.h"
+
+
+MainWindow::MainWindow(QWidget * parent): QMainWindow(parent), Ui::MainWindow() {
+	setupUi(this);
+	active_ = false;
+	lineInput->setFocus();
+#if QT_VERSION >= 0x050000
+	treeGraphics->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+	treeGraphics->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+#else
+	treeGraphics->header()->setResizeMode(0, QHeaderView::ResizeToContents);
+	treeGraphics->header()->setResizeMode(1, QHeaderView::ResizeToContents);
+#endif
+	npal = epal = lineInput->palette();
+	epal.setColor(lineInput->backgroundRole(), QColor(Qt::red).lighter(150));
+	connect(&session, SIGNAL(loading(QPIConfig & )), this, SLOT(loading(QPIConfig & )));
+	connect(&session, SIGNAL(saving(QPIConfig & )), this, SLOT(saving(QPIConfig & )));
+	session.setFile("session_qpicalc.conf");
+	session.addEntry(this);
+	session.addEntry(lineInput);
+	session.addEntry(tabWidget);
+	session.load();
+	ans = evaluator.setVariable("ans");
+	on_lineInput_returnPressed();
+}
+
+
+MainWindow::~MainWindow() {session.save();
+}
+
+
+void MainWindow::changeEvent(QEvent * e) {
+	QMainWindow::changeEvent(e);
+	switch (e->type()) {
+	case QEvent::LanguageChange:
+		retranslateUi(this);
+		break;
+	default:
+		break;
+	}
+}
+
+
+void MainWindow::updateGraphics() {
+	graphic->setGraphicsCount(treeGraphics->topLevelItemCount());
+	for (int i = 0; i < treeGraphics->topLevelItemCount(); ++i)
+		graphic->setGraphicColor(treeGraphics->topLevelItem(i)->data(0, Qt::DecorationRole).value<QColor>(), i);
+	redrawGraphics();
+}
+
+
+void MainWindow::redrawGraphics() {
+	QRectF sr = graphic->visualRect();
+	double dx = (sr.right() - sr.left()) / graphic->width(), sx = sr.left(), fx = sr.right(), cx;
+	QPolygonF pol;
+	evaluator.setVariable("x");
+	int vi = evaluator.variableIndex("x");
+	graphic->setAutoUpdate(false);
+	for (int i = 0; i < treeGraphics->topLevelItemCount(); ++i) {
+		QTreeWidgetItem * ti = treeGraphics->topLevelItem(i);
+		graphic->setGraphicName(ti->text(1), i);
+		pol.clear();
+		if (ti->checkState(0) == Qt::Checked) {
+			if (evaluator.check(ti->text(1))) {
+				cx = sx;
+				while (cx < fx) {
+					evaluator.setVariable(vi, complexd(cx, 0.));
+					pol << QPointF(cx, evaluator.evaluate().real());
+					cx += dx;
+				}
+			}
+		}
+		graphic->setGraphicVisible(ti->checkState(0) == Qt::Checked, i);
+		graphic->setGraphicData(pol, i);
+	}
+	graphic->setAutoUpdate(true);
+	graphic->update(true);
+}
+
+
+void MainWindow::loading(QPIConfig & conf) {
+	active_ = false;
+	QStringList vars = conf.getValue("variables").toStringList();
+	int vc = vars.size() / 2;
+	for (int i = 0; i < vc; ++i) {
+		QTreeWidgetItem * ti = new QTreeWidgetItem(treeVariables);
+		ti->setText(0, vars[i * 2]);
+		ti->setText(1, vars[i * 2 + 1]);
+		ti->setFlags(ti->flags() | Qt::ItemIsEditable);
+		treeVariables->addTopLevelItem(ti);
+	}
+	buttonVarClear->setEnabled(treeVariables->topLevelItemCount() > 0);
+	QByteArray ba = conf.getValue("graphics").toByteArray();
+	QDataStream s(ba);
+	QVector<GraphicType> g;
+	if (!ba.isEmpty()) s >> g;
+	graphic->setAllGraphics(g);
+	for (int i = 0; i < graphic->graphicsCount(); ++i) {
+		graphic->setCurrentGraphic(i);
+		QTreeWidgetItem * ti = new QTreeWidgetItem(treeGraphics);
+		ti->setFlags(ti->flags() | Qt::ItemIsEditable);
+		ti->setCheckState(0, graphic->graphicVisible() ? Qt::Checked : Qt::Unchecked);
+		ti->setData(0, Qt::DecorationRole, graphic->graphicColor());
+		ti->setText(1, graphic->graphicName());
+		treeGraphics->addTopLevelItem(ti);
+	}
+	buttonGraphicClear->setEnabled(treeGraphics->topLevelItemCount() > 0);
+	graphic->setVisualRect(conf.getValue("graphicRect", QRectF(-1., -1., 2., 2.)).toRectF());
+	ba = conf.getValue("graphic_state").toByteArray();
+	if (!ba.isEmpty())
+		graphic->load(ba);
+	on_tabWidget_currentChanged(0);
+	redrawGraphics();
+	active_ = true;
+}
+
+
+void MainWindow::saving(QPIConfig & conf) {
+	QStringList vars;
+	int vc = treeVariables->topLevelItemCount();
+	for (int i = 0; i < vc; ++i) {
+		QTreeWidgetItem * ti = treeVariables->topLevelItem(i);
+		vars << ti->text(0) << ti->text(1);
+	}
+	conf.setValue("variables", vars);
+
+	QVector<GraphicType> g;
+	vc = treeGraphics->topLevelItemCount();
+	for (int i = 0; i < vc; ++i) {
+		QTreeWidgetItem * ti = treeGraphics->topLevelItem(i);
+		vars << QString::number(ti->background(1).color().rgb()) << ti->text(2);
+	}
+	QByteArray ba; QDataStream s(&ba, QIODevice::WriteOnly);
+	s << graphic->allGraphics();
+	conf.setValue("graphics", QByteArray2QString(ba));
+	conf.setValue("graphicRect", graphic->visualRect());
+	conf.setValue("graphic_state", graphic->save());
+}
+
+
+void MainWindow::on_lineInput_textChanged(QString text) {
+	if (evaluator.check(text)) lineInput->setPalette(npal);
+	else lineInput->setPalette(epal);
+	labelParsed->setText(evaluator.expression());
+	labelError->setText(evaluator.error());
+}
+
+
+void MainWindow::on_lineInput_returnPressed() {
+	bool ret = evaluator.check(lineInput->text());
+	if (ret) lineInput->setPalette(npal);
+	else lineInput->setPalette(epal);
+	labelParsed->setText(evaluator.expression());
+	labelError->setText(evaluator.error());
+	if (!ret) return;
+	complexd val = evaluator.evaluate();
+	evaluator.setVariable(ans, val);
+	if (val.imag() == 0) labelResult->setText(QString::number(val.real()));
+	else {
+		if (val.real() == 0) labelResult->setText(QString::number(val.imag()) + "i");
+		else {
+			if (val.imag() > 0) labelResult->setText(QString::number(val.real())
+								+ " + " + QString::number(val.imag()) + "i");
+			else labelResult->setText(QString::number(val.real())
+								+ " - " + QString::number(fabs(val.imag())) + "i");
+		}
+	}
+	if (lineInput->text().trimmed().isEmpty()) return;
+	QTreeWidgetItem * ti = 0, * pti = 0;
+	if (treeHistory->topLevelItemCount() > 0)
+		pti = treeHistory->topLevelItem(treeHistory->topLevelItemCount() - 1);
+	if (pti != 0)
+		if (pti->text(0) == lineInput->text())
+			return;
+	ti = new QTreeWidgetItem(treeHistory);
+	ti->setText(0, lineInput->text());
+	ti->setText(1, labelResult->text());
+	treeHistory->addTopLevelItem(ti);
+	if (treeHistory->verticalScrollBar()->value() == treeHistory->verticalScrollBar()->maximum())
+		treeHistory->scrollToBottom();
+}
+
+
+void MainWindow::on_treeGraphics_itemDoubleClicked(QTreeWidgetItem * item, int column) {
+	Qt::ItemFlags f = item->flags();
+	if (column != 1) f &= ~Qt::ItemIsEditable;
+	else f |= Qt::ItemIsEditable;
+	item->setFlags(f);
+	if (column != 0) return;
+	QColor col = QColorDialog::getColor(item->data(0, Qt::DecorationRole).value<QColor>(), this, "Select color for graphic", QColorDialog::ShowAlphaChannel);
+	if (!col.isValid()) return;
+	item->setData(0, Qt::DecorationRole, col);
+	updateGraphics();
+}
+
+
+void MainWindow::on_buttonVarAdd_clicked() {
+	QTreeWidgetItem * ti = new QTreeWidgetItem(treeVariables);
+	ti->setSelected(true);
+	ti->setFlags(ti->flags() | Qt::ItemIsEditable);
+	treeVariables->addTopLevelItem(ti);
+	treeVariables->setFocus();
+	treeVariables->editItem(ti);
+	buttonVarClear->setEnabled(treeVariables->topLevelItemCount() > 0);
+}
+
+
+void MainWindow::on_buttonVarDel_clicked() {
+	QList<QTreeWidgetItem * > si = treeVariables->selectedItems();
+	foreach (QTreeWidgetItem * i, si)
+		delete i;
+	buttonVarClear->setEnabled(treeVariables->topLevelItemCount() > 0);
+}
+
+
+void MainWindow::on_buttonGraphicAdd_clicked() {
+	graphic->setGraphicsCount(graphic->graphicsCount() + 1);
+	graphic->setCurrentGraphic(graphic->graphicsCount() - 1);
+	QTreeWidgetItem * ti = new QTreeWidgetItem(treeGraphics);
+	ti->setSelected(true);
+	ti->setFlags(ti->flags() | Qt::ItemIsEditable);
+	ti->setCheckState(0, Qt::Checked);
+	ti->setData(0, Qt::DecorationRole, graphic->graphicColor());
+	treeGraphics->addTopLevelItem(ti);
+	treeGraphics->setFocus();
+	treeGraphics->editItem(ti, 1);
+	buttonGraphicClear->setEnabled(treeGraphics->topLevelItemCount() > 0);
+	updateGraphics();
+}
+
+
+void MainWindow::on_buttonGraphicDel_clicked() {
+	QList<QTreeWidgetItem * > si = treeGraphics->selectedItems();
+	foreach (QTreeWidgetItem * i, si)
+		delete i;
+	buttonGraphicClear->setEnabled(treeGraphics->topLevelItemCount() > 0);
+	updateGraphics();
+}
+
+
+void MainWindow::on_buttonGraphicClear_clicked() {
+	treeGraphics->clear();
+	buttonGraphicClear->setEnabled(false);
+	updateGraphics();
+}
+
+
+void MainWindow::on_tabWidget_currentChanged(int index) {
+	QPIEvaluator eval;
+	evaluator.clearCustomVariables();
+	for (int i = 0; i < treeVariables->topLevelItemCount(); ++i) {
+		QString vn, vv;
+		vn = treeVariables->topLevelItem(i)->text(0);
+		vv = treeVariables->topLevelItem(i)->text(1);
+		eval.check(vv);
+		evaluator.setVariable(vn, eval.evaluate());
+	}
+	if (index == 0) on_lineInput_returnPressed();
+	if (index == 2) redrawGraphics();
+}
diff --git a/piqt/utils/qpicalculator/mainwindow.h b/piqt/utils/qpicalculator/mainwindow.h
new file mode 100644
index 0000000..efb44b9
--- /dev/null
+++ b/piqt/utils/qpicalculator/mainwindow.h
@@ -0,0 +1,56 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QPalette>
+#include <QFile>
+#include <QTextStream>
+#include <QScrollBar>
+#include <QColorDialog>
+#include "ui_mainwindow.h"
+#include "qpievaluator.h"
+#include "session_manager.h"
+
+
+class MainWindow: public QMainWindow, private Ui::MainWindow
+{
+	Q_OBJECT
+public:
+	MainWindow(QWidget * parent = 0);
+	~MainWindow();
+
+protected:
+	void changeEvent(QEvent * e);
+
+private:
+	void updateGraphics();
+	void redrawGraphics();
+
+	QPIEvaluator evaluator;
+	QPalette npal, epal;
+	SessionManager session;
+	int ans;
+	bool active_;
+
+private slots:
+	void loading(QPIConfig & conf);
+	void saving(QPIConfig & conf);
+	void on_lineInput_textChanged(QString s);
+	void on_lineInput_returnPressed();
+	void on_treeHistory_itemDoubleClicked(QTreeWidgetItem * item, int column) {lineInput->setText(item->text(0));}
+	void on_treeVariables_itemSelectionChanged() {buttonVarDel->setDisabled(treeVariables->selectedItems().isEmpty());}
+	void on_treeGraphics_itemSelectionChanged() {buttonGraphicDel->setDisabled(treeGraphics->selectedItems().isEmpty());}
+	void on_treeGraphics_itemChanged(QTreeWidgetItem * , int col) { if (active_) redrawGraphics();}
+	void on_treeGraphics_itemDoubleClicked(QTreeWidgetItem * item, int column);
+	void on_buttonVarAdd_clicked();
+	void on_buttonVarDel_clicked();
+	void on_buttonVarClear_clicked() {treeVariables->clear(); buttonVarClear->setEnabled(false);}
+	void on_buttonGraphicAdd_clicked();
+	void on_buttonGraphicDel_clicked();
+	void on_buttonGraphicClear_clicked();
+	void on_tabWidget_currentChanged(int index);
+	void on_graphic_visualRectChanged() {redrawGraphics();}
+
+};
+
+#endif // MAINWINDOW_H
diff --git a/piqt/utils/qpicalculator/mainwindow.ui b/piqt/utils/qpicalculator/mainwindow.ui
new file mode 100644
index 0000000..dae08e6
--- /dev/null
+++ b/piqt/utils/qpicalculator/mainwindow.ui
@@ -0,0 +1,379 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>780</width>
+    <height>521</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>QPICalculator</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="qpicalculator.qrc">
+    <normaloff>:/icons/qpicalculator.png</normaloff>:/icons/qpicalculator.png</iconset>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <layout class="QVBoxLayout" name="verticalLayout_3">
+    <item>
+     <widget class="QTabWidget" name="tabWidget">
+      <property name="currentIndex">
+       <number>2</number>
+      </property>
+      <widget class="QWidget" name="tab">
+       <attribute name="title">
+        <string>Calculator</string>
+       </attribute>
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <item>
+         <widget class="QTreeWidget" name="treeHistory">
+          <property name="horizontalScrollBarPolicy">
+           <enum>Qt::ScrollBarAlwaysOff</enum>
+          </property>
+          <property name="editTriggers">
+           <set>QAbstractItemView::NoEditTriggers</set>
+          </property>
+          <property name="alternatingRowColors">
+           <bool>true</bool>
+          </property>
+          <property name="verticalScrollMode">
+           <enum>QAbstractItemView::ScrollPerPixel</enum>
+          </property>
+          <property name="rootIsDecorated">
+           <bool>false</bool>
+          </property>
+          <property name="itemsExpandable">
+           <bool>false</bool>
+          </property>
+          <property name="allColumnsShowFocus">
+           <bool>true</bool>
+          </property>
+          <attribute name="headerDefaultSectionSize">
+           <number>300</number>
+          </attribute>
+          <column>
+           <property name="text">
+            <string>Expression</string>
+           </property>
+          </column>
+          <column>
+           <property name="text">
+            <string>Result</string>
+           </property>
+          </column>
+         </widget>
+        </item>
+        <item>
+         <widget class="CLineEdit" name="lineInput"/>
+        </item>
+        <item>
+         <widget class="QLabel" name="labelError">
+          <property name="text">
+           <string>Correct</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="labelParsed">
+          <property name="text">
+           <string>0</string>
+          </property>
+          <property name="textInteractionFlags">
+           <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="labelResult">
+          <property name="font">
+           <font>
+            <pointsize>14</pointsize>
+            <weight>75</weight>
+            <bold>true</bold>
+           </font>
+          </property>
+          <property name="text">
+           <string>0</string>
+          </property>
+          <property name="textInteractionFlags">
+           <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="tab_2">
+       <attribute name="title">
+        <string>Variables</string>
+       </attribute>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QTreeWidget" name="treeVariables">
+          <property name="horizontalScrollBarPolicy">
+           <enum>Qt::ScrollBarAlwaysOff</enum>
+          </property>
+          <property name="selectionMode">
+           <enum>QAbstractItemView::ExtendedSelection</enum>
+          </property>
+          <property name="verticalScrollMode">
+           <enum>QAbstractItemView::ScrollPerPixel</enum>
+          </property>
+          <property name="rootIsDecorated">
+           <bool>false</bool>
+          </property>
+          <property name="itemsExpandable">
+           <bool>false</bool>
+          </property>
+          <property name="allColumnsShowFocus">
+           <bool>true</bool>
+          </property>
+          <attribute name="headerDefaultSectionSize">
+           <number>200</number>
+          </attribute>
+          <column>
+           <property name="text">
+            <string>Name</string>
+           </property>
+          </column>
+          <column>
+           <property name="text">
+            <string>Value</string>
+           </property>
+          </column>
+         </widget>
+        </item>
+        <item>
+         <layout class="QVBoxLayout" name="verticalLayout_2">
+          <item>
+           <widget class="QToolButton" name="buttonVarAdd">
+            <property name="icon">
+             <iconset resource="../../utils/qad_utils.qrc">
+              <normaloff>:/icons/list-add.png</normaloff>:/icons/list-add.png</iconset>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QToolButton" name="buttonVarDel">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="icon">
+             <iconset resource="../../utils/qad_utils.qrc">
+              <normaloff>:/icons/edit-delete.png</normaloff>:/icons/edit-delete.png</iconset>
+            </property>
+            <property name="shortcut">
+             <string>Del</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="verticalSpacer">
+            <property name="orientation">
+             <enum>Qt::Vertical</enum>
+            </property>
+            <property name="sizeType">
+             <enum>QSizePolicy::Preferred</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>20</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QToolButton" name="buttonVarClear">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="icon">
+             <iconset resource="../../utils/qad_utils.qrc">
+              <normaloff>:/icons/edit-clear.png</normaloff>:/icons/edit-clear.png</iconset>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="verticalSpacer_2">
+            <property name="orientation">
+             <enum>Qt::Vertical</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>20</width>
+              <height>40</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="tab_3">
+       <attribute name="title">
+        <string>Graphics</string>
+       </attribute>
+       <layout class="QVBoxLayout" name="verticalLayout_5">
+        <item>
+         <widget class="QSplitter" name="splitter">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <widget class="QWidget" name="">
+           <layout class="QHBoxLayout" name="horizontalLayout_2">
+            <item>
+             <widget class="QTreeWidget" name="treeGraphics">
+              <property name="verticalScrollBarPolicy">
+               <enum>Qt::ScrollBarAlwaysOff</enum>
+              </property>
+              <property name="selectionMode">
+               <enum>QAbstractItemView::ExtendedSelection</enum>
+              </property>
+              <property name="verticalScrollMode">
+               <enum>QAbstractItemView::ScrollPerPixel</enum>
+              </property>
+              <property name="horizontalScrollMode">
+               <enum>QAbstractItemView::ScrollPerPixel</enum>
+              </property>
+              <property name="rootIsDecorated">
+               <bool>false</bool>
+              </property>
+              <property name="itemsExpandable">
+               <bool>false</bool>
+              </property>
+              <property name="allColumnsShowFocus">
+               <bool>true</bool>
+              </property>
+              <attribute name="headerVisible">
+               <bool>false</bool>
+              </attribute>
+              <attribute name="headerDefaultSectionSize">
+               <number>50</number>
+              </attribute>
+              <column>
+               <property name="text">
+                <string>On</string>
+               </property>
+              </column>
+              <column>
+               <property name="text">
+                <string>Function</string>
+               </property>
+              </column>
+             </widget>
+            </item>
+            <item>
+             <layout class="QVBoxLayout" name="verticalLayout_4">
+              <item>
+               <widget class="QToolButton" name="buttonGraphicAdd">
+                <property name="icon">
+                 <iconset resource="../../utils/qad_utils.qrc">
+                  <normaloff>:/icons/list-add.png</normaloff>:/icons/list-add.png</iconset>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QToolButton" name="buttonGraphicDel">
+                <property name="enabled">
+                 <bool>false</bool>
+                </property>
+                <property name="icon">
+                 <iconset resource="../../utils/qad_utils.qrc">
+                  <normaloff>:/icons/edit-delete.png</normaloff>:/icons/edit-delete.png</iconset>
+                </property>
+                <property name="shortcut">
+                 <string>Del</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <spacer name="verticalSpacer_3">
+                <property name="orientation">
+                 <enum>Qt::Vertical</enum>
+                </property>
+                <property name="sizeType">
+                 <enum>QSizePolicy::Preferred</enum>
+                </property>
+                <property name="sizeHint" stdset="0">
+                 <size>
+                  <width>20</width>
+                  <height>20</height>
+                 </size>
+                </property>
+               </spacer>
+              </item>
+              <item>
+               <widget class="QToolButton" name="buttonGraphicClear">
+                <property name="enabled">
+                 <bool>false</bool>
+                </property>
+                <property name="icon">
+                 <iconset resource="../../utils/qad_utils.qrc">
+                  <normaloff>:/icons/edit-clear.png</normaloff>:/icons/edit-clear.png</iconset>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <spacer name="verticalSpacer_4">
+                <property name="orientation">
+                 <enum>Qt::Vertical</enum>
+                </property>
+                <property name="sizeHint" stdset="0">
+                 <size>
+                  <width>20</width>
+                  <height>40</height>
+                 </size>
+                </property>
+               </spacer>
+              </item>
+             </layout>
+            </item>
+           </layout>
+          </widget>
+          <widget class="Graphic" name="graphic">
+           <property name="buttons">
+            <set>Graphic::BorderInputs|Graphic::Configure|Graphic::CursorAxis|Graphic::Fullscreen|Graphic::Grid|Graphic::Save</set>
+           </property>
+           <property name="antialiasing">
+            <bool>true</bool>
+           </property>
+           <property name="borderInputsVisible">
+            <bool>false</bool>
+           </property>
+           <property name="legendVisible">
+            <bool>false</bool>
+           </property>
+          </widget>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <customwidgets>
+  <customwidget>
+   <class>Graphic</class>
+   <extends>QFrame</extends>
+   <header>graphic.h</header>
+  </customwidget>
+  <customwidget>
+   <class>CLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>clineedit.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../../utils/qad_utils.qrc"/>
+  <include location="qpicalculator.qrc"/>
+ </resources>
+ <connections/>
+</ui>
diff --git a/piqt/utils/qpicalculator/qpicalculator.qrc b/piqt/utils/qpicalculator/qpicalculator.qrc
new file mode 100644
index 0000000..1a48626
--- /dev/null
+++ b/piqt/utils/qpicalculator/qpicalculator.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>icons/qpicalculator.png</file>
+    </qresource>
+</RCC>