clean the header include in painting

arrow.cpp: Q3PointArray -> QPolygon

* unused header:
arrowdialog.cpp
ellipse.cpp
ellipsearc.cpp
graphicline.cpp
painting.cpp
rectangle.cpp
graphictext.cpp

* unnecessary include:
filldialog.h graphictextdialog.h id_dialog.h

* add include:
graphicline.h: add QPen
graphictext.h: add QFont, QColor, QString
portsymbol.h: add QString

* remove comment
painting.h

qucs/paintings/arrow.cpp

@@ -19,11 +19,7 @@
 #include "arrowdialog.h"
 #include "schematic.h"
 
-#include <QLineEdit>
-#include <QPushButton>
-#include <QComboBox>
-//Added by qt3to4:
-#include <Q3PointArray>
+#include <QPolygon>
 #include <math.h>
 
 
@@ -50,7 +46,7 @@ Arrow::~Arrow()
 // --------------------------------------------------------------------------
 void Arrow::paint(ViewPainter *p)
 {
-  Q3PointArray Points;
+  QPolygon Points;
   int x1_, y1_, x2_, y2_, x3_, y3_;
   if(isSelected) {
     p->Painter->setPen(QPen(Qt::darkGray,Pen.width()+5));

qucs/paintings/arrowdialog.cpp

@@ -17,7 +17,6 @@
 
 #include "arrowdialog.h"
 
-//#include <QLayout>
 #include <QLabel>
 #include <QValidator>
 #include <QColorDialog>

qucs/paintings/ellipse.cpp

@@ -18,10 +18,6 @@
 #include "ellipse.h"
 #include "filldialog.h"
 #include "schematic.h"
-#include <QPushButton>
-#include <QLineEdit>
-#include <QComboBox>
-#include <QCheckBox>
 
 
 Ellipse::Ellipse(bool _filled)

qucs/paintings/ellipsearc.cpp

@@ -19,9 +19,6 @@
 #include "filldialog.h"
 #include "main.h"
 #include "schematic.h"
-#include <QPushButton>
-#include <QLineEdit>
-#include <QComboBox>
 
 #include <math.h>
 

qucs/paintings/filldialog.h

@@ -19,8 +19,6 @@
 #define FILLDIALOG_H
 
 #include <QDialog>
-#include <QLabel>
-#include <QVBoxLayout>
 
 class QVBoxLayout;
 class QLabel;

qucs/paintings/graphicline.cpp

@@ -18,9 +18,6 @@
 #include "graphicline.h"
 #include "filldialog.h"
 #include "schematic.h"
-#include <QPushButton>
-#include <QLineEdit>
-#include <QComboBox>
 
 #include <math.h>
 

qucs/paintings/graphicline.h

@@ -20,6 +20,8 @@
 
 #include "painting.h"
 
+#include <QPen>
+
 
 class GraphicLine : public Painting  {
 public:

qucs/paintings/graphictext.cpp

@@ -22,11 +22,6 @@
 #include "graphictextdialog.h"
 #include "schematic.h"
 #include "qucs.h"
-#include <QWidget>
-#include <QPainter>
-#include <QLineEdit>
-#include <Q3TextEdit>
-#include <QPushButton>
 
 #include <math.h>
 

qucs/paintings/graphictext.h

@@ -20,6 +20,10 @@
 
 #include "painting.h"
 
+#include <QColor>
+#include <QFont>
+#include <QString>
+
 
 class GraphicText : public Painting  {
 public:

qucs/paintings/graphictextdialog.h

@@ -19,7 +19,6 @@
 #define GRAPHICTEXTDIALOG_H
 
 #include <QDialog>
-#include <QVBoxLayout>
 
 class QLineEdit;
 class QTextEdit;

qucs/paintings/id_dialog.h

@@ -20,9 +20,6 @@
 
 #include <QDialog>
 #include <QRegExp>
-//Added by qt3to4:
-#include <Q3VBoxLayout>
-
 
 class ID_Text;
 class Q3ListView;

qucs/paintings/painting.cpp

@@ -16,8 +16,6 @@
  ***************************************************************************/
 #include <QtGui>
 #include "painting.h"
-#include <iostream>
-using namespace std;
 
 Painting::Painting()
 {

qucs/paintings/painting.h

@@ -20,8 +20,6 @@
 
 #include "element.h"
 #include "viewpainter.h"
-//class QPainter;
-//class Schematic;
 
 
 class Painting : public Element  {

qucs/paintings/portsymbol.h

@@ -20,6 +20,7 @@
 
 #include "painting.h"
 
+#include <QString>
 
 class PortSymbol : public Painting  {
 public:

qucs/paintings/rectangle.cpp

@@ -17,11 +17,6 @@
 #include <QtGui>
 #include "rectangle.h"
 #include "filldialog.h"
-
-#include <QPushButton>
-#include <QLineEdit>
-#include <QComboBox>
-#include <QCheckBox>
 #include "schematic.h"
 
 Rectangle::Rectangle(bool _filled)