--- a/src/main.h	Wed Jul 05 09:52:10 2017 +0300
+++ b/src/main.h	Wed Jul 05 12:48:55 2017 +0300
@@ -14,6 +14,8 @@
 #include <QDialog>
 #include <QtSql>
 #include <QSqlQueryModel>
+#include <QPainter>
+#include <QPrinter>
 
 
 //
@@ -106,6 +108,13 @@
     class AboutWindow;
 }
 
+typedef struct
+{
+    int nlinesPerPage;
+    int npages;
+} SLPageInfo;
+
+
 class SyntilistaMainWindow : public QMainWindow
 {
     Q_OBJECT
@@ -123,6 +132,8 @@
     int  addTransactionGUI(qint64 id, bool debt, double value);
     void updatePersonList();
 
+    bool printDocumentPage(SLPageInfo &pinfo, const bool getPageInfo, const int page, QPainter *pt, QPrinter *printer);
+
     PersonSQLModel *model_People;
 
 public slots:
@@ -138,6 +149,7 @@
 
     void on_button_Quit_clicked();
     void on_button_About_clicked();
+    void on_button_Print_clicked();
 
     void on_button_AddDebt_clicked();
     void on_button_PayDebt_clicked();
@@ -156,6 +168,8 @@
 
     void updateSortOrder(int index, Qt::SortOrder order);
 
+    void printDocument(QPrinter *printer);
+
 
 private:
     Ui::SyntilistaMainWindow *ui;
@@ -222,4 +236,114 @@
 };
 
 
+//
+// Custom painter drawing helper class
+//
+class SLDrawContext : public QObject
+{
+    Q_OBJECT
+
+public:
+    QPointF m_pos;
+    QString m_str;
+    qreal m_lf_add;
+
+    explicit SLDrawContext(QPainter *pt)
+    {
+        painter = pt;
+        metrics = NULL;
+        m_str = "ABC";
+        setPos(0, 0);
+        m_lf_add = 0;
+    }
+
+    ~SLDrawContext()
+    {
+        if (metrics)
+            delete metrics;
+    }
+
+    void setFont(const QFont &ft)
+    {
+        if (metrics)
+            delete metrics;
+
+        font = QFont(ft, painter->device());
+        painter->setFont(font);
+        metrics = new QFontMetricsF(font);
+    }
+
+    void setLFAdd(const qreal lf_add)
+    {
+        m_lf_add = lf_add;
+    }
+
+    void drawText(const QPointF &pos, const QString &str)
+    {
+        m_str = str;
+        painter->drawText(m_pos + pos, str);
+    }
+
+    void drawText(const QString &str)
+    {
+        drawText(QPointF(0, 0), str);
+    }
+
+    void drawText(const qreal xc, const qreal width, const QString &str, const int flags = 0)
+    {
+        m_str = str;
+        painter->drawText(
+            m_pos.x() + xc, m_pos.y(),
+            width, boundRect().height(),
+            flags,
+            str);
+    }
+
+    const QRectF boundRect(const QString str)
+    {
+        return metrics->boundingRect(str);
+    }
+
+    const QRectF boundRect()
+    {
+        return metrics->boundingRect(m_str);
+    }
+
+    void lf(qreal yadd)
+    {
+        m_pos.setY(m_pos.y() + boundRect().height() + yadd);
+    }
+
+    void lf()
+    {
+        lf(m_lf_add);
+    }
+
+    void setPos(const QPointF &pos)
+    {
+        m_pos = pos;
+    }
+
+    void setPos(const qreal x, const qreal y)
+    {
+        setPos(QPointF(x, y));
+    }
+
+    void move(const QPointF &pos)
+    {
+        m_pos += pos;
+    }
+
+    void move(const qreal x, const qreal y)
+    {
+        move(QPointF(x, y));
+    }
+
+private:
+    QPainter *painter;
+    QFont font;
+    QFontMetricsF *metrics;
+};
+
+
 #endif // SYNTILISTA_H