Updates to support Python version 3

Amendments to the sip source and configuration/build scripts to allow
for support under Python version 3. The examples have been updated
using "2to3" along with some manual changes to sort out intentation
and casting to integer from float.

Signed-off-by: aneejit1 <aneejit1@gmail.com>
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

34 files changed, 228 insertions, 227 deletions

diff --git a/examples3/SQL/dbconnect.py b/examples3/SQL/dbconnect.py
index db922de..d1c1baf 100755
--- a/examples3/SQL/dbconnect.py
+++ b/examples3/SQL/dbconnect.py
@@ -14,7 +14,7 @@ def createConnection():
     driver = DB_DRIVER
     # all qt examples use TQSqlDatabase::addDatabase, but
     # this never returns NULL in my experience
-    drivers = map(str, TQSqlDatabase.drivers())
+    drivers = list(map(str, TQSqlDatabase.drivers()))
     if driver in drivers:
         dlg = dbConnect(driver)
         #TODO: make connection parameters accessible
@@ -40,8 +40,8 @@ class dbConnect(frmConnect):
 
         self.txtName.setText(self.username)
         self.txtPasswd.setText(self.password)
-        map(self.cmbServer.insertItem, self.hostnames)
-        map(self.cmbDatabase.insertItem, self.databases)
+        list(map(self.cmbServer.insertItem, self.hostnames))
+        list(map(self.cmbDatabase.insertItem, self.databases))
         self.connect(self.buttonHelp, SIGNAL("clicked()"),
                      self.buttonHelp_clicked)
 
@@ -77,6 +77,6 @@ class dbConnect(frmConnect):
 if __name__ == "__main__":
     app = TQApplication(sys.argv)
     if createConnection():
-        print "ok"
+        print("ok")
     else:
-        print "cancel"
+        print("cancel")
diff --git a/examples3/SQL/sqlsubclass5.py b/examples3/SQL/sqlsubclass5.py
index 56f747e..0fdc78c 100755
--- a/examples3/SQL/sqlsubclass5.py
+++ b/examples3/SQL/sqlsubclass5.py
@@ -31,7 +31,7 @@ class CustomTable(TQDataTable):
             query = TQSqlQuery("SELECT name FROM prices WHERE id=%s" %
                               field.value().toString())
             value = ""
-            if query.next():
+            if next(query):
                 value = query.value(0).toString()
             p.drawText(2, 2, cr.width()-4, cr.height()-4,
                         self.fieldAlignment(field), value)
@@ -42,7 +42,7 @@ class CustomTable(TQDataTable):
             v = field.value().toDouble()
             if v < 0:
                 p.setPen(TQColor("red"))
-            value = TQString(u"%.2f \u20ac" % v)
+            value = TQString("%.2f \u20ac" % v)
             p.drawText(2, 2, cr.width()-6, cr.height()-4,
                         TQt.AlignRight|TQt.AlignVCenter, value)
         elif fn == "paiddate":
@@ -74,17 +74,17 @@ class InvoiceItemCursor(TQSqlCursor):
         if fn == "productname":
             query = TQSqlQuery("SELECT name FROM prices WHERE id=%d;" %
                               (self.field("pricesid").value().toInt()))
-            if query.next():
+            if next(query):
                 return query.value(0)
         elif fn == "price":
             query = TQSqlQuery("SELECT price FROM prices WHERE id=%d;" %
                               (self.field("pricesid").value().toInt()))
-            if query.next():
+            if next(query):
                 return query.value(0)
         elif fn == "cost":
             query = TQSqlQuery("SELECT price FROM prices WHERE id=%d;" %
                               (self.field("pricesid").value().toInt()))
-            if query.next():
+            if next(query):
                 return TQVariant(query.value(0).toDouble() * 
                                 self.value("quantity").toDouble())
         return TQVariant(TQString.null)
@@ -102,7 +102,7 @@ class ProductPicker(TQComboBox):
         TQComboBox.__init__(self, parent, name)
         cur = TQSqlCursor("prices")
         cur.select(cur.index("id"))
-        while cur.next():
+        while next(cur):
             self.insertItem(cur.value("name").toString(), cur.value("id").toInt())
 
 
diff --git a/examples3/SQL/sqltable4.py b/examples3/SQL/sqltable4.py
index 599f093..a8484c5 100755
--- a/examples3/SQL/sqltable4.py
+++ b/examples3/SQL/sqltable4.py
@@ -31,7 +31,7 @@ class CustomTable(TQDataTable):
             v = field.value().toDouble()
             if v < 0:
                 p.setPen(TQColor("red"))
-            value = TQString(u"%.2f \u20ac" % v)
+            value = TQString("%.2f \u20ac" % v)
             #print unicode(value).encode("iso-8859-15")
             p.drawText(2, 2, cr.width()-6, cr.height()-4,
                         TQt.AlignRight|TQt.AlignVCenter, value)
@@ -39,7 +39,7 @@ class CustomTable(TQDataTable):
             query = TQSqlQuery("SELECT name FROM status WHERE id=%s" %
                               field.value().toString())
             value = ""
-            if query.next():
+            if next(query):
                 value = query.value(0).toString()
             p.drawText(2, 2, cr.width()-4, cr.height()-4,
                         self.fieldAlignment(field), value)
@@ -52,7 +52,7 @@ class StatusPicker(TQComboBox):
         TQComboBox.__init__(self, parent, name)
         cur = TQSqlCursor("status")
         cur.select(cur.index("id"))
-        while cur.next():
+        while next(cur):
             self.insertItem(cur.value("name").toString(), cur.value("id").toInt())
 
 
diff --git a/examples3/aclock.py b/examples3/aclock.py
index 3c04e20..66283ef 100755
--- a/examples3/aclock.py
+++ b/examples3/aclock.py
@@ -8,7 +8,7 @@ def TQMIN(x, y):
   return x
 class AnalogClock(TQWidget):
   def __init__(self, *args):
-    apply(TQWidget.__init__,(self,) + args)
+    TQWidget.__init__(*(self,) + args)
     self.time = TQTime.currentTime()
     internalTimer = TQTimer(self)
     self.connect(internalTimer, SIGNAL("timeout()"), self.timeout)
diff --git a/examples3/addressbook.py b/examples3/addressbook.py
index 96746c0..14b5679 100755
--- a/examples3/addressbook.py
+++ b/examples3/addressbook.py
@@ -78,7 +78,7 @@ fileprint = [
 
 class ABCentralWidget( TQWidget ):
     def __init__( self, *args ):
-        apply( TQWidget.__init__, (self, ) + args )
+        TQWidget.__init__(*(self, ) + args)
         self.mainGrid = TQGridLayout( self, 2, 1, 5, 5 )
 
         self.setupTabWidget()
diff --git a/examples3/application.py b/examples3/application.py
index 2c9731c..056e895 100755
--- a/examples3/application.py
+++ b/examples3/application.py
@@ -179,7 +179,7 @@ class ApplicationWindow(TQMainWindow):
             return
 
         for l in f.readlines():
-            self.e.append(string.rstrip(l))
+            self.e.append(l.rstrip())
 
         f.close()
 
diff --git a/examples3/biff.py b/examples3/biff.py
index 9397a0e..abee0cf 100755
--- a/examples3/biff.py
+++ b/examples3/biff.py
@@ -5,7 +5,7 @@ from python_tqt.qt import *
 
 
 if TQT_VERSION < 0x030100:
-    print "This example requires TQt v3.1.0 or later."
+    print("This example requires TQt v3.1.0 or later.")
     sys.exit(1)
 
 
diff --git a/examples3/buttongroups.py b/examples3/buttongroups.py
index 7f9e079..3d6883e 100755
--- a/examples3/buttongroups.py
+++ b/examples3/buttongroups.py
@@ -21,7 +21,7 @@ FALSE = 0
 
 class ButtonsGroups( TQWidget ):
   def __init__( self, *args ):
-    apply( TQWidget.__init__, (self,) + args )
+    TQWidget.__init__(*(self,) + args)
 
     # Create Widgets which allow easy layouting
     self.vbox = TQVBoxLayout( self, 11, 6 )
diff --git a/examples3/checklists.py b/examples3/checklists.py
index 44bc09f..61734ba 100755
--- a/examples3/checklists.py
+++ b/examples3/checklists.py
@@ -9,27 +9,27 @@ TRUE = 1
 FALSE = 0 
 
 class CheckLists(TQWidget):
-	def __init__(self, *args):
-		apply( TQWidget.__init__, (self, ) + args )
+  def __init__(self, *args):
+    TQWidget.__init__(* (self, ) + args )
 
-		lay = TQHBoxLayout(self)
-		lay.setMargin(5)
+    lay = TQHBoxLayout(self)
+    lay.setMargin(5)
 		
-		vbox1 = TQVBoxLayout(lay)
-		vbox1.setMargin(5)
+    vbox1 = TQVBoxLayout(lay)
+    vbox1.setMargin(5)
 
-		# First child: a Label
-		vbox1.addWidget(TQLabel("Check some items!", self))
+    # First child: a Label
+    vbox1.addWidget(TQLabel("Check some items!", self))
 
-		# Second child: the ListView
-		self.lv1 = TQListView(self)
-		vbox1.addWidget(self.lv1)
-		self.lv1.addColumn("Items")
-		self.lv1.setRootIsDecorated(TRUE)
+    # Second child: the ListView
+    self.lv1 = TQListView(self)
+    vbox1.addWidget(self.lv1)
+    self.lv1.addColumn("Items")
+    self.lv1.setRootIsDecorated(TRUE)
 
-		# create a list with 4 ListViewItems which will be parent items of other ListViewItems
+    # create a list with 4 ListViewItems which will be parent items of other ListViewItems
 
-		parentList = []
+    parentList = []
 
     parentList.append( TQListViewItem( self.lv1, "Parent Item 1" ) )
     parentList.append( TQListViewItem( self.lv1, "Parent Item 2" ) )
@@ -91,7 +91,7 @@ class CheckLists(TQWidget):
     self.label = TQLabel( "No Item yet...", self )
     tmp3.addWidget( self.label )
 
-	def copy1to2(self):
+  def copy1to2(self):
     self.lv2.clear()
 
     # Insert first a controller Item into the second ListView. Always if Radio-ListViewItems
diff --git a/examples3/cursor.py b/examples3/cursor.py
index ab87c32..da9db7b 100755
--- a/examples3/cursor.py
+++ b/examples3/cursor.py
@@ -18,33 +18,33 @@ cb_width  = 32
 cb_height = 32
 
 # cursor bitmap
-cb_bits = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf8\x0f\x00" \
-          "\x00\x06\x30\x00\x80\x01\xc0\x00\x40\x00\x00\x01" \
-          "\x20\x00\x00\x02\x10\x00\x00\x04\x08\x3e\x3e\x08" \
-          "\x08\x03\xe0\x08\xc4\x00\x00\x11\x04\x1e\x78\x10" \
-          "\x02\x0c\x30\x20\x02\x40\x00\x20\x02\x40\x00\x20" \
-          "\x02\x40\x00\x20\x02\x20\x04\x20\x02\x20\x04\x20" \
-          "\x02\x10\x08\x20\x02\x08\x08\x20\x02\xf0\x07\x20" \
-          "\x04\x00\x00\x10\x04\x00\x00\x10\x08\x00\xc0\x08" \
-          "\x08\x3c\x30\x08\x10\xe6\x19\x04\x20\x00\x0f\x02" \
-          "\x40\x00\x00\x01\x80\x01\xc0\x00\x00\x06\x30\x00" \
-          "\x00\xf8\x0f\x00\x00\x00\x00\x00"
+cb_bits = b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf8\x0f\x00" \
+          b"\x00\x06\x30\x00\x80\x01\xc0\x00\x40\x00\x00\x01" \
+          b"\x20\x00\x00\x02\x10\x00\x00\x04\x08\x3e\x3e\x08" \
+          b"\x08\x03\xe0\x08\xc4\x00\x00\x11\x04\x1e\x78\x10" \
+          b"\x02\x0c\x30\x20\x02\x40\x00\x20\x02\x40\x00\x20" \
+          b"\x02\x40\x00\x20\x02\x20\x04\x20\x02\x20\x04\x20" \
+          b"\x02\x10\x08\x20\x02\x08\x08\x20\x02\xf0\x07\x20" \
+          b"\x04\x00\x00\x10\x04\x00\x00\x10\x08\x00\xc0\x08" \
+          b"\x08\x3c\x30\x08\x10\xe6\x19\x04\x20\x00\x0f\x02" \
+          b"\x40\x00\x00\x01\x80\x01\xc0\x00\x00\x06\x30\x00" \
+          b"\x00\xf8\x0f\x00\x00\x00\x00\x00"
 
 cm_width  = 32
 cm_height = 32
 
 # cursor bitmap mask
-cm_bits = "\x00\x00\x00\x00\x00\xf8\x1f\x00\x00\xfe\x3f\x00" \
-          "\x80\x07\xf0\x00\xc0\x01\xc0\x01\x60\x00\x00\x03" \
-          "\x30\x00\x00\x06\x18\x00\x00\x0c\x0c\x3e\x3e\x18" \
-          "\x0e\x03\xe0\x18\xc6\x00\x00\x31\x07\x1e\x78\x30" \
-          "\x03\x0c\x30\x60\x03\x40\x00\x60\x03\x40\x00\x60" \
-          "\x03\x40\x00\x60\x03\x20\x04\x60\x03\x20\x04\x60" \
-          "\x03\x10\x08\x60\x03\x08\x08\x60\x03\xf0\x07\x60" \
-          "\x06\x00\x00\x30\x06\x00\x00\x30\x0c\x00\xc0\x18" \
-          "\x0c\x3c\x30\x18\x18\xe6\x19\x0c\x30\x00\x0f\x06" \
-          "\x60\x00\x00\x03\xc0\x01\xc0\x01\x80\x07\xf0\x00" \
-          "\x00\xfe\x3f\x00\x00\xf8\x0f\x00"
+cm_bits = b"\x00\x00\x00\x00\x00\xf8\x1f\x00\x00\xfe\x3f\x00" \
+          b"\x80\x07\xf0\x00\xc0\x01\xc0\x01\x60\x00\x00\x03" \
+          b"\x30\x00\x00\x06\x18\x00\x00\x0c\x0c\x3e\x3e\x18" \
+          b"\x0e\x03\xe0\x18\xc6\x00\x00\x31\x07\x1e\x78\x30" \
+          b"\x03\x0c\x30\x60\x03\x40\x00\x60\x03\x40\x00\x60" \
+          b"\x03\x40\x00\x60\x03\x20\x04\x60\x03\x20\x04\x60" \
+          b"\x03\x10\x08\x60\x03\x08\x08\x60\x03\xf0\x07\x60" \
+          b"\x06\x00\x00\x30\x06\x00\x00\x30\x0c\x00\xc0\x18" \
+          b"\x0c\x3c\x30\x18\x18\xe6\x19\x0c\x30\x00\x0f\x06" \
+          b"\x60\x00\x00\x03\xc0\x01\xc0\x01\x80\x07\xf0\x00" \
+          b"\x00\xfe\x3f\x00\x00\xf8\x0f\x00"
 
 # The CursorView contains many labels with different cursors.
 class CursorView( TQWidget ):		# cursor view
diff --git a/examples3/dclock.py b/examples3/dclock.py
index eb4e990..302d454 100755
--- a/examples3/dclock.py
+++ b/examples3/dclock.py
@@ -47,7 +47,7 @@ class DigitalClock(TQLCDNumber):
       s[2] = ' '
     if s[0] == '0':
       s[0] = ' '
-    s = string.join(s,'')
+    s = ''.join(s)
     self.display(s)
 
 a = TQApplication(sys.argv)
diff --git a/examples3/desktop.py b/examples3/desktop.py
index 7ed96cd..154b632 100755
--- a/examples3/desktop.py
+++ b/examples3/desktop.py
@@ -220,11 +220,11 @@ if len(sys.argv) == 3:
     validOptions = 0
 
 if not validOptions:
-  print """Usage:
+  print("""Usage:
 \tdesktop -poly
 \tdesktop -rotate
 \tdesktop -troll
 \tdesktop -trollwidget
 \tdesktop -shadetext <text>
-\tdesktop -shadewidget <text>"""
+\tdesktop -shadewidget <text>""")
   rotate()
diff --git a/examples3/fontdisplayer.py b/examples3/fontdisplayer.py
index 7e66572..1f616bf 100755
--- a/examples3/fontdisplayer.py
+++ b/examples3/fontdisplayer.py
@@ -41,15 +41,15 @@ class FontRowTable( TQFrame ):
         fm = self.fontMetrics()
         ml = self.frameWidth() + self.margin() + 1 + max(0,-fm.minLeftBearing())
         mt = self.frameWidth() + self.margin()
-        cell = TQSize((self.width()-15-ml)/16,(self.height()-15-mt)/16)
+        cell = TQSize(int((self.width()-15-ml)/16),int((self.height()-15-mt)/16))
 
         if not cell.width() or not cell.height() :
             return
 
-        mini = r.left() / cell.width()
-        maxi = (r.right()+cell.width()-1) / cell.width()
-        minj = r.top() / cell.height()
-        maxj = (r.bottom()+cell.height()-1) / cell.height()
+        mini = int(r.left() / cell.width())
+        maxi = int((r.right()+cell.width()-1) / cell.width())
+        minj = int(r.top() / cell.height())
+        maxj = int((r.bottom()+cell.height()-1) / cell.height())
 
         h = fm.height()
 
@@ -83,13 +83,13 @@ class FontRowTable( TQFrame ):
                                 else: sign = positive
                                 if l > 0: lsign = 0
                                 else: lsign = 1
-                                p.fillRect(x+lsign, y-h/2, abs(l),-h/2, TQBrush(sign))
+                                p.fillRect(x+lsign, int(y-h/2), abs(l),int(-h/2), TQBrush(sign))
                             if r :
                                 if r < 0: sign = rnegative
                                 else: sign = rpositive
                                 if r > 0: rsign = r
                                 else: rsign = 0
-                                p.fillRect(x+w-rsign,y+2, abs(r),-h/2, TQBrush(sign))
+                                p.fillRect(int(x+w-rsign),y+2, abs(r),int(-h/2), TQBrush(sign))
                         s = TQString( ch )
                         p.setPen(TQPen(TQt.black))
                         p.drawText(x,y,s)
diff --git a/examples3/fonts.py b/examples3/fonts.py
index 68f0b54..145b815 100755
--- a/examples3/fonts.py
+++ b/examples3/fonts.py
@@ -19,10 +19,8 @@ class Viewer( TQWidget ):
 
         self.setFontSubstitutions()
 
-        #greeting_heb = TQString.fromUtf8( "\327\251\327\234\327\225\327\235" )
-        greeting_heb = unicode( '\327\251\327\234\327\225\327\235','utf8' )
-        #greeting_ru  = TQString.fromUtf8( "\320\227\320\264\321\200\320\260\320\262\321\201\321\202\320\262\321\203\320\271\321\202\320\265" )
-        greeting_ru  = unicode('\320\227\320\264\321\200\320\260\320\262\321\201\321\202\320\262\321\203\320\271\321\202\320\265','utf8' )
+        greeting_heb = TQString.fromUtf8( b"\327\251\327\234\327\225\327\235" )
+        greeting_ru  = TQString.fromUtf8( b"\320\227\320\264\321\200\320\260\320\262\321\201\321\202\320\262\321\203\320\271\321\202\320\265" )
         greeting_en  = "Hello"
 
         self.greetings = TQTextView( self, "textview" )
diff --git a/examples3/gears.py b/examples3/gears.py
index 05f0469..e98df55 100755
--- a/examples3/gears.py
+++ b/examples3/gears.py
@@ -227,7 +227,7 @@ if __name__=='__main__':
   app=TQApplication(sys.argv)
 
   if not TQGLFormat.hasOpenGL():
-    raise 'No TQt OpenGL support.'
+    raise Exception('No TQt OpenGL support.')
 
   widget=GearWidget()
   app.setMainWidget(widget)
diff --git a/examples3/i18n/i18n.py b/examples3/i18n/i18n.py
index 74f3422..b4dc42a 100755
--- a/examples3/i18n/i18n.py
+++ b/examples3/i18n/i18n.py
@@ -80,7 +80,7 @@ def showLang(lang):
     translator.load(language,".")
     tqApp.installTranslator(translator)
     m = MyWidget()
-    m.setCaption("PyTQt Example - i18n - " + unicode(m.caption()))
+    m.setCaption("PyTQt Example - i18n - " + str(m.caption()))
     wlist.append(m)
     return m
     
diff --git a/examples3/mdi.py b/examples3/mdi.py
index 8f1cf93..ca3d33b 100755
--- a/examples3/mdi.py
+++ b/examples3/mdi.py
@@ -77,12 +77,12 @@ fileprint = [
 
 document = [
 "12 16 6 1",
-" 	c #040404",
-".	c None",
-"X	c white",
-"o	c #808304",
-"O	c black",
-"+	c #f3f7f3",
+"       c #040404",
+".      c None",
+"X      c white",
+"o      c #808304",
+"O      c black",
+"+      c #f3f7f3",
 "       .....",
 " XXXXX  ....",
 " XXXXX X ...",
@@ -115,8 +115,8 @@ filePrintText = \
 '''Click this button to print the file you are editing.<br><br>
 You can also select the <b>Print</b> command from the <b>File</b> menu.'''
 
-True=1
-False=0
+#True=1
+#False=0
 
 class ApplicationWindow(TQMainWindow):
     def __init__(self):
@@ -132,7 +132,7 @@ class ApplicationWindow(TQMainWindow):
 
         saveIcon = TQPixmap(filesave)
         self.fileSave = TQToolButton(TQIconSet(saveIcon),'Save File',TQString.null,self.save,self.fileTools,'save file')
-       	printIcon = TQPixmap(fileprint)
+        printIcon = TQPixmap(fileprint)
         self.filePrint = TQToolButton(TQIconSet(printIcon),'Print File',TQString.null,self.printDoc,self.fileTools,'print file')
 
         TQWhatsThis.whatsThisButton(self.fileTools)
@@ -168,10 +168,10 @@ class ApplicationWindow(TQMainWindow):
 
         self.menuBar().insertSeparator()
         self.windows = TQPopupMenu( self )
-    	self.windows.setCheckable( True )
-    	self.connect( self.windows, SIGNAL( "aboutToShow()" ),
-	    self.windowsMenuAboutToShow )
-    	self.menuBar().insertItem( "&Windows", self.windows )
+        self.windows.setCheckable( True )
+        self.connect( self.windows, SIGNAL( "aboutToShow()" ),
+        self.windowsMenuAboutToShow )
+        self.menuBar().insertItem( "&Windows", self.windows )
 
         self.help = TQPopupMenu(self)
         self.menuBar().insertSeparator()
@@ -180,15 +180,15 @@ class ApplicationWindow(TQMainWindow):
         self.help.insertItem('&About',self.about,TQt.Key_F1)
         self.help.insertItem('About &TQt',self.aboutTQt)
         self.help.insertSeparator()
-    	self.help.insertItem( "What's &This", self, SLOT("whatsThis()"), TQt.SHIFT+TQt.Key_F1)
+        self.help.insertItem( "What's &This", self, SLOT("whatsThis()"), TQt.SHIFT+TQt.Key_F1)
 
-    	self.menuBar().insertSeparator()
+        self.menuBar().insertSeparator()
 
-    	self.vb = TQVBox( self )
-    	self.vb.setFrameStyle( TQFrame.StyledPanel | TQFrame.Sunken )
-    	self.ws = TQWorkspace( self.vb )
-    	self.ws.setScrollBarsEnabled( True )
-    	self.setCentralWidget( self.vb )
+        self.vb = TQVBox( self )
+        self.vb.setFrameStyle( TQFrame.StyledPanel | TQFrame.Sunken )
+        self.ws = TQWorkspace( self.vb )
+        self.ws.setScrollBarsEnabled( True )
+        self.setCentralWidget( self.vb )
 
         self.statusBar().message('Ready',2000)
         #self.resize(450,600)
@@ -265,90 +265,90 @@ class ApplicationWindow(TQMainWindow):
 
 
 class MDIWindow( TQMainWindow):
-	def __init__(self,parent, name, wflags ):
-    		TQMainWindow.__init__(self,parent, name, wflags )
-    		self.mmovie = 0
-    		self.medit = TQMultiLineEdit( self )
-    		self.setFocusProxy( self.medit )
-    		self.setCentralWidget( self.medit );
-
-
-	def load(self, fn ):
-    		self.filename  = fn
-    		self.f=TQFile( self.filename )
-    		if not self.f.open( IO_ReadOnly ):
-			return
-
-    		if fn.contains(".gif"):
-			tmp=TQWidget(self)
-			self.setFocusProxy(tmp)
-			self.setCentralWidget(tmp)
-			self.medit.hide()
-			del self.medit
-			qm=TQMovie(fn)
-			#ifdef Q_WS_QWS // temporary speed-test hack
-			#qm->setDisplayWidget(tmp);
-			#endif
-			tmp.setBackgroundMode(TQWidget.NoBackground)
-			tmp.show()
-			self.mmovie=qm
-    		else :
-			self.mmovie = 0
-			t=TQTextStream(self.f)
-			s = t.read()
-			self.medit.setText( s )
-			self.f.close()
-    		self.setCaption( self.filename )
-		self.emit(PYSIGNAL( "message"),(TQString("Loaded document %1").arg(self.filename),2000 ))
-
-	def save(self):
-    		if self.filename.isEmpty():
-        		self.saveAs()
-        		return
-    		text = self.medit.text()
-		output=open(str(self.filename),'w')
-		output.write(str(text))
-        	#emit message( TQString("Could not write to %1").arg(filename), 2000 );
-        	#return
-		output.close()
-		self.setCaption(self.filename)
-		self.emit(PYSIGNAL( "message"),(TQString("File %1 saved").arg(self.filename),2000 ))
-
-	def saveAs(self):
-		fn = TQFileDialog.getSaveFileName( self.filename, TQString.null, self )
-    		if not fn.isEmpty():
-        		self.filename = fn
-        		self.save()
-    		else :
-			self.emit(PYSIGNAL( "message"),(TQString("Saving aborted"),2000 ))
-
-	def printDoc(self,printer):
-        	Margin = 10
-        	pageNo = 1
-
-        	if printer.setup(self):
-			self.emit(PYSIGNAL( "message"),(TQString("Printing..."),2000 ))
-            		p = TQPainter()
-            		p.begin(printer)
-            		p.setFont(self.medit.font())
-            		yPos = 0
-            		fm = p.fontMetrics()
-            		metrics = TQPaintDeviceMetrics(printer)
-
-            		for i in range(self.medit.numLines()):
-                		if Margin + yPos > metrics.height() - Margin:
-                    			pageNo = pageNo + 1
-					self.emit(PYSIGNAL( "message"),(TQString("Printing (page %1) ...").arg(pageNo),2000 ))
-					printer.newPage()
-                    			yPos = 0
-
-                		p.drawText(Margin,Margin + yPos,metrics.width(),fm.lineSpacing(),TQt.ExpandTabs | TQt.DontClip,self.medit.textLine(i))
-                		yPos = yPos + fm.lineSpacing()
-
-            		p.end()
-			self.emit(PYSIGNAL( "message"),(TQString("Printing completed"),2000 ))
-        	else:
-			self.emit(PYSIGNAL( "message"),(TQString("Printing aborted"),2000 ))
+        def __init__(self,parent, name, wflags ):
+                TQMainWindow.__init__(self,parent, name, wflags )
+                self.mmovie = 0
+                self.medit = TQMultiLineEdit( self )
+                self.setFocusProxy( self.medit )
+                self.setCentralWidget( self.medit );
+
+
+        def load(self, fn ):
+                self.filename  = fn
+                self.f=TQFile( self.filename )
+                if not self.f.open( IO_ReadOnly ):
+                        return
+
+                if fn.contains(".gif"):
+                        tmp=TQWidget(self)
+                        self.setFocusProxy(tmp)
+                        self.setCentralWidget(tmp)
+                        self.medit.hide()
+                        del self.medit
+                        qm=TQMovie(fn)
+                        #ifdef Q_WS_QWS // temporary speed-test hack
+                        #qm->setDisplayWidget(tmp);
+                        #endif
+                        tmp.setBackgroundMode(TQWidget.NoBackground)
+                        tmp.show()
+                        self.mmovie=qm
+                else :
+                        self.mmovie = 0
+                        t=TQTextStream(self.f)
+                        s = t.read()
+                        self.medit.setText( s )
+                        self.f.close()
+                self.setCaption( self.filename )
+                self.emit(PYSIGNAL( "message"),(TQString("Loaded document %1").arg(self.filename),2000 ))
+
+        def save(self):
+                if self.filename.isEmpty():
+                        self.saveAs()
+                        return
+                text = self.medit.text()
+                output=open(str(self.filename),'w')
+                output.write(str(text))
+                #emit message( TQString("Could not write to %1").arg(filename), 2000 );
+                #return
+                output.close()
+                self.setCaption(self.filename)
+                self.emit(PYSIGNAL( "message"),(TQString("File %1 saved").arg(self.filename),2000 ))
+
+        def saveAs(self):
+                fn = TQFileDialog.getSaveFileName( self.filename, TQString.null, self )
+                if not fn.isEmpty():
+                        self.filename = fn
+                        self.save()
+                else :
+                        self.emit(PYSIGNAL( "message"),(TQString("Saving aborted"),2000 ))
+
+        def printDoc(self,printer):
+                Margin = 10
+                pageNo = 1
+
+                if printer.setup(self):
+                        self.emit(PYSIGNAL( "message"),(TQString("Printing..."),2000 ))
+                        p = TQPainter()
+                        p.begin(printer)
+                        p.setFont(self.medit.font())
+                        yPos = 0
+                        fm = p.fontMetrics()
+                        metrics = TQPaintDeviceMetrics(printer)
+
+                        for i in range(self.medit.numLines()):
+                                if Margin + yPos > metrics.height() - Margin:
+                                        pageNo = pageNo + 1
+                                        self.emit(PYSIGNAL( "message"),(TQString("Printing (page %1) ...").arg(pageNo),2000 ))
+                                        printer.newPage()
+                                        yPos = 0
+
+                                p.drawText(Margin,Margin + yPos,metrics.width(),fm.lineSpacing(),TQt.ExpandTabs | TQt.DontClip,self.medit.textLine(i))
+                                yPos = yPos + fm.lineSpacing()
+
+                        p.end()
+                        self.emit(PYSIGNAL( "message"),(TQString("Printing completed"),2000 ))
+                else:
+                        self.emit(PYSIGNAL( "message"),(TQString("Printing aborted"),2000 ))
 
 
 if __name__=='__main__':
diff --git a/examples3/progress.py b/examples3/progress.py
index eb5a832..3ebdd12 100755
--- a/examples3/progress.py
+++ b/examples3/progress.py
@@ -87,7 +87,7 @@ class AnimatedThingy(TQLabel):
 
     def _drawqix(self, p, pn, step):
         # rainbow effect
-        pn.setColor(TQColor((step * 255)/self.nqix, 255, 255, TQColor.Hsv))
+        pn.setColor(TQColor(int((step * 255)/self.nqix), 255, 255, TQColor.Hsv))
         p.setPen(pn)
         p.drawLine(self.ox[step][0], self.oy[step][0],
                    self.ox[step][1], self.oy[step][1])
diff --git a/examples3/qdir.py b/examples3/qdir.py
index 62d452e..358c796 100755
--- a/examples3/qdir.py
+++ b/examples3/qdir.py
@@ -2,6 +2,7 @@
 #
 # 2005-02-12    initial version    hp
 
+from __future__ import print_function
 import os
 import pickle
 from python_tqt.qt import *
@@ -97,7 +98,7 @@ class Preview(TQWidgetStack):
                     err = False
                     try:
                         text = open(path.latin1(), "r").read()
-                    except IOError, msg:
+                    except IOError as msg:
                         text = TQString(str(msg))
                         err = True
                     if not err and fi.extension().lower().contains("htm"):
@@ -159,8 +160,8 @@ class CustomFileDialog(TQFileDialog):
         if os.path.exists(self.bookmarkFile):
             try:
                 self.bookmarkList = pickle.loads(open(self.bookmarkFile, "rb").read())
-            except IOError, msg:
-                print msg
+            except IOError as msg:
+                print(msg)
         self.setDir("/")
         self.dirView = DirectoryView(self, None, True)
         self.dirView.addColumn("")
@@ -209,8 +210,8 @@ class CustomFileDialog(TQFileDialog):
         if self.bookmarkList:
             try:
                 open(self.bookmarkFile, "wb").write(pickle.dumps(self.bookmarkList))
-            except IOError, msg:
-                print msg
+            except IOError as msg:
+                print(msg)
         return TQFileDialog.done(self, r)
 
     def showEvent(self, e):
@@ -245,8 +246,8 @@ if __name__ == '__main__':
 
     def usage(msg = None):
         if msg:
-            print >> sys.stderr, msg
-        print >> sys.stderr, """\
+            print(msg, file=sys.stderr)
+        print("""\
 usage: qdir [--any | --dir | --custom] [--preview] [--default f] {--filter f} [caption ...]
      --any         Get any filename, need not exist.
      --dir         Return a directory rather than a file.
@@ -256,7 +257,7 @@ usage: qdir [--any | --dir | --custom] [--preview] [--default f] {--filter f} [c
      --default f   Start from directory/file f.
      --filter f    eg. '*.gif' '*.bmp'
      caption ...   Caption for dialog.
-"""
+""", file=sys.stderr)
         sys.exit(1)
 
     def main():
@@ -270,7 +271,7 @@ usage: qdir [--any | --dir | --custom] [--preview] [--default f] {--filter f} [c
     
         try:
             optlist, args = getopt.getopt(sys.argv[1:], "h", options)
-        except getopt.error, msg:
+        except getopt.error as msg:
             usage(msg)
     
         for opt, par in optlist:
@@ -311,7 +312,7 @@ usage: qdir [--any | --dir | --custom] [--preview] [--default f] {--filter f} [c
             fd.setCaption(caption)
             fd.setSelection(start)
             if fd.exec_loop() == TQDialog.Accepted:
-                print "%s\n" % fd.selectedFile().latin1()
+                print("%s\n" % fd.selectedFile().latin1())
                 return 0
             else:
                 return 1
diff --git a/examples3/rangecontrols.py b/examples3/rangecontrols.py
index a56eff3..14588c8 100755
--- a/examples3/rangecontrols.py
+++ b/examples3/rangecontrols.py
@@ -13,7 +13,7 @@
 import sys
 from python_tqt.qt import *
 
-INT_MAX = sys.maxint
+INT_MAX = sys.maxsize
 
 class RangeControls( TQVBox ):
     def __init__( self, parent=None, name=None ):
diff --git a/examples3/richtext.py b/examples3/richtext.py
index 78c0db7..2e6abac 100755
--- a/examples3/richtext.py
+++ b/examples3/richtext.py
@@ -99,7 +99,7 @@ class MyRichText( TQVBox ):
 
         self.connect( self.bClose, SIGNAL("clicked()"), tqApp, SLOT("quit()") )
         self.connect( self.bPrev,  SIGNAL("clicked()"), self.prev )
-        self.connect( self.bNext,  SIGNAL("clicked()"), self.next )
+        self.connect( self.bNext,  SIGNAL("clicked()"), self.__next__ )
 
         self.num = 0
     
@@ -112,7 +112,7 @@ class MyRichText( TQVBox ):
             self.bPrev.setEnabled( False )
         self.bNext.setEnabled( True )
 
-    def next( self ):
+    def __next__( self ):
         self.num += 1
         if not sayings[self.num]:
             return
diff --git a/examples3/semaphore.py b/examples3/semaphore.py
index 46cdace..79affb2 100755
--- a/examples3/semaphore.py
+++ b/examples3/semaphore.py
@@ -9,7 +9,7 @@ import sys
 try:
     from python_tqt.qt import TQThread
 except:
-    print "Thread support not enabled"
+    print("Thread support not enabled")
     sys.exit(1)
 
 from python_tqt.qt import *
@@ -192,7 +192,7 @@ class SemaphoreExample(TQWidget):
 
             del s
         else:
-            print "Unknown custom event type:", event.type()
+            print("Unknown custom event type:", event.type())
 
 
 app = TQApplication(sys.argv)
diff --git a/examples3/splitter.py b/examples3/splitter.py
index 709e960..a220d08 100755
--- a/examples3/splitter.py
+++ b/examples3/splitter.py
@@ -16,13 +16,13 @@ class Test(TQWidget):
         y1 = 0
         y2 = self.height() - 1
         
-        x = (x1+x2)/2
+        x = int((x1+x2)/2)
         p.drawLine(x, y1, x+d, y1+d)
         p.drawLine(x, y1, x-d, y1+d)
         p.drawLine(x, y2, x+d, y2-d)
         p.drawLine(x, y2, x-d, y2-d)
 
-        y = (y1+y2)/2
+        y = int((y1+y2)/2)
         p.drawLine(x1, y, x1+d, y+d)
         p.drawLine(x1, y, x1+d, y-d)
         p.drawLine(x2, y, x2-d, y+d)
diff --git a/examples3/tablestatistics.py b/examples3/tablestatistics.py
index e0835bb..d6b6b2e 100755
--- a/examples3/tablestatistics.py
+++ b/examples3/tablestatistics.py
@@ -53,6 +53,8 @@ class Table(TQTable):
         # read all the TQt source and header files into a list
         all = []
         qtdir = os.getenv("TQTDIR")
+        if qtdir is None:
+            raise Exception("The TQTDIR environment variable has not been set.")
         for i in dirs:
             dir = TQDir(os.path.join(qtdir, "src", i))
             lst = TQStringList(dir.entryList("*.cpp; *.h"))
@@ -65,7 +67,7 @@ class Table(TQTable):
         self.setNumRows(len(all) + 1)
 
         i = 0
-        sum = 0L
+        sum = 0
         # insert the data into the table
         for it in all:
             self.setText(i, TB_FILE, it)
@@ -82,11 +84,11 @@ class Table(TQTable):
         if col < TB_SIZE or col > TB_FLAG:
             return
 
-        sum = 0L
+        sum = 0
         for i in range(self.numRows()-1):
             if str(self.text(i, TB_FLAG)) == "No":
                 continue
-            sum += long(str(self.text(i, TB_SIZE)))
+            sum += int(str(self.text(i, TB_SIZE)))
         self.displaySum(sum)
 
     def displaySum(self, sum):
@@ -108,7 +110,7 @@ class Table(TQTable):
 
 class TableItem(TQTableItem):
     def __init__(self, *args):
-        apply(TQTableItem.__init__, (self,) + args)
+        TQTableItem.__init__(*(self,) + args)
 
     def paint(self, p, cg, cr, selected):
         g = TQColorGroup(cg)
diff --git a/examples3/tooltip.py b/examples3/tooltip.py
index 03bcd4f..13025e3 100755
--- a/examples3/tooltip.py
+++ b/examples3/tooltip.py
@@ -76,7 +76,7 @@ class TellMe( TQWidget ):
              self.r2 = self.randomRect()
     
     def randomRect( self ):
-        return TQRect( random() * (self.width() - 20), random() * (self.height() - 20), 20, 20 )
+        return TQRect( int(random() * (self.width() - 20)), int(random() * (self.height() - 20)), 20, 20 )
     
     def tip( self, p ):
         
diff --git a/examples3/tut10.py b/examples3/tut10.py
index 310f000..b16804e 100755
--- a/examples3/tut10.py
+++ b/examples3/tut10.py
@@ -27,7 +27,7 @@ class LCDRange(qt.TQVBox):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError,  "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
         self.slider.setRange(minVal, maxVal)
 
 
diff --git a/examples3/tut11.py b/examples3/tut11.py
index ca070fd..cb6444b 100755
--- a/examples3/tut11.py
+++ b/examples3/tut11.py
@@ -28,7 +28,7 @@ class LCDRange(qt.TQVBox):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError,  "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
         self.slider.setRange(minVal, maxVal)
 
 
@@ -149,7 +149,7 @@ class CannonField(qt.TQWidget):
         y = y0 + vely * time - 0.5 * gravity * time * time
 
         r = qt.TQRect(0, 0, 6, 6)
-        r.moveCenter(qt.TQPoint(x, self.height() - 1 - y))
+        r.moveCenter(qt.TQPoint(int(x), int(self.height() - 1 - y)))
         return r
 
     def sizePolicy(self):
diff --git a/examples3/tut12.py b/examples3/tut12.py
index 7b13271..452d1ac 100755
--- a/examples3/tut12.py
+++ b/examples3/tut12.py
@@ -36,7 +36,7 @@ class LCDRange(qt.TQVBox):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError, "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
 
         self.slider.setRange(minVal, maxVal)
 
@@ -184,7 +184,7 @@ class CannonField(qt.TQWidget):
         y = y0 + vely * time - 0.5 * gravity * time * time
 
         r = qt.TQRect(0, 0, 6, 6)
-        r.moveCenter(qt.TQPoint(x, self.height() - 1 - y))
+        r.moveCenter(qt.TQPoint(int(x), int(self.height() - 1 - y)))
         return r
 
     def targetRect(self):
diff --git a/examples3/tut13.py b/examples3/tut13.py
index daa5a9d..c43d67b 100755
--- a/examples3/tut13.py
+++ b/examples3/tut13.py
@@ -41,7 +41,7 @@ class LCDRange(qt.TQWidget):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError, "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
 
         self.slider.setRange(minVal, maxVal)
 
@@ -216,7 +216,7 @@ class CannonField(qt.TQWidget):
         y = y0 + vely * time - 0.5 * gravity * time * time
 
         r = qt.TQRect(0, 0, 6, 6)
-        r.moveCenter(qt.TQPoint(x, self.height() - 1 - y))
+        r.moveCenter(qt.TQPoint(int(x), int(self.height() - 1 - y)))
         return r
 
     def targetRect(self):
diff --git a/examples3/tut14.py b/examples3/tut14.py
index 9f89a9b..8f7404c 100755
--- a/examples3/tut14.py
+++ b/examples3/tut14.py
@@ -41,7 +41,7 @@ class LCDRange(qt.TQWidget):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError, "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
 
         self.slider.setRange(minVal, maxVal)
 
@@ -246,7 +246,7 @@ class CannonField(qt.TQWidget):
         y = y0 + vely * time - 0.5 * gravity * time * time
 
         r = qt.TQRect(0, 0, 6, 6)
-        r.moveCenter(qt.TQPoint(x, self.height() - 1 - y))
+        r.moveCenter(qt.TQPoint(int(x), int(self.height() - 1 - y)))
         return r
 
     def targetRect(self):
diff --git a/examples3/tut8.py b/examples3/tut8.py
index b884093..2e81a94 100755
--- a/examples3/tut8.py
+++ b/examples3/tut8.py
@@ -27,7 +27,7 @@ class LCDRange(qt.TQVBox):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError, "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
 
         self.slider.setRange(minVal, maxVal)
 
diff --git a/examples3/tut9.py b/examples3/tut9.py
index 024f921..3eafed7 100755
--- a/examples3/tut9.py
+++ b/examples3/tut9.py
@@ -27,7 +27,7 @@ class LCDRange(qt.TQVBox):
 
     def setRange(self, minVal, maxVal):
         if minVal < 0 or maxVal > 99 or minVal > maxVal:
-            raise ValueError,  "LCDRange.setRange(): invalid range"
+            raise ValueError("LCDRange.setRange(): invalid range")
         self.slider.setRange(minVal, maxVal)
 
 
diff --git a/examples3/webbrowser/mainwindow.py b/examples3/webbrowser/mainwindow.py
index 31b11f1..14929de 100644
--- a/examples3/webbrowser/mainwindow.py
+++ b/examples3/webbrowser/mainwindow.py
@@ -1064,34 +1064,34 @@ class MainWindow(TQMainWindow):
 
 
     def go(self):
-        print "MainWindow.go(): Not implemented yet"
+        print("MainWindow.go(): Not implemented yet")
 
     def newWindow(self):
-        print "MainWindow.newWindow(): Not implemented yet"
+        print("MainWindow.newWindow(): Not implemented yet")
 
     def setProgress(self,a0,a1):
-        print "MainWindow.setProgress(int,int): Not implemented yet"
+        print("MainWindow.setProgress(int,int): Not implemented yet")
 
     def init(self):
         pass
 
     def setTitle(self,a0):
-        print "MainWindow.setTitle(const TQString&): Not implemented yet"
+        print("MainWindow.setTitle(const TQString&): Not implemented yet")
 
     def setCommandState(self,a0,a1):
-        print "MainWindow.setCommandState(int,bool): Not implemented yet"
+        print("MainWindow.setCommandState(int,bool): Not implemented yet")
 
     def navigateComplete(self):
-        print "MainWindow.navigateComplete(): Not implemented yet"
+        print("MainWindow.navigateComplete(): Not implemented yet")
 
     def navigateBegin(self):
-        print "MainWindow.navigateBegin(): Not implemented yet"
+        print("MainWindow.navigateBegin(): Not implemented yet")
 
     def aboutSlot(self):
-        print "MainWindow.aboutSlot(): Not implemented yet"
+        print("MainWindow.aboutSlot(): Not implemented yet")
 
     def aboutTQtSlot(self):
-        print "MainWindow.aboutTQtSlot(): Not implemented yet"
+        print("MainWindow.aboutTQtSlot(): Not implemented yet")
 
     def __tr(self,s,c = None):
         return tqApp.translate("MainWindow",s,c)
diff --git a/examples3/widgets.py b/examples3/widgets.py
index 0d3ce3a..fe36049 100755
--- a/examples3/widgets.py
+++ b/examples3/widgets.py
@@ -18,7 +18,7 @@ def TQMIN( x, y ):
 
 class AnalogClock( TQWidget ):
     def __init__( self, *args ):
-        apply( TQWidget.__init__, (self,) + args )
+        TQWidget.__init__(*(self,) + args)
         self.time = TQTime.currentTime()     # get current time
         internalTimer = TQTimer( self )      # create internal timer
         self.connect( internalTimer, SIGNAL("timeout()"), self.timeout )
@@ -74,7 +74,7 @@ class AnalogClock( TQWidget ):
 
 class DigitalClock( TQLCDNumber ):
     def __init__( self, *args ): 
-        apply( TQLCDNumber.__init__,(self,) + args )
+        TQLCDNumber.__init__(*(self,) + args)
         self.showingColon = 0
         self.setFrameStyle(TQFrame.Panel | TQFrame.Raised)
         self.setLineWidth( 2 )
@@ -112,7 +112,7 @@ class DigitalClock( TQLCDNumber ):
             s[2] = ' '
         if s[0] == '0':
             s[0] = ' '
-        s = string.join(s,'')
+        s = ''.join(s)
         self.display( s )
 
     def TQMIN( x, y ):
@@ -130,7 +130,7 @@ MOVIEFILENAME = "trolltech.gif"
 
 class WidgetView ( TQWidget ):
     def __init__( self, *args ):
-         apply( TQWidget.__init__, (self,) + args )
+         TQWidget.__init__(*(self,) + args)
          
          # Set the window caption/title
          self.setCaption( "TQt Widgets Demo Application" )
@@ -223,7 +223,7 @@ class WidgetView ( TQWidget ):
 
          self.vbox.addSpacing( self.bg.fontMetrics().height() )
 
-         self.cb = range(3)
+         self.cb = list(range(3))
          self.cb[0] = TQCheckBox( self.bg )
          self.cb[0].setText( "Read" )
          self.vbox.addWidget( self.cb[0] )
@@ -464,10 +464,10 @@ class WidgetView ( TQWidget ):
         TQApplication.setPalette( p, TRUE )
 
     def lineEditTextChanged( self, newText ):
-        self.msg.setText("Line edit text: " + unicode(newText))
+        self.msg.setText("Line edit text: " + str(newText))
 
     def spinBoxValueChanged( self, valueText ):
-        self.msg.setText("Spin box value: " + unicode(valueText))
+        self.msg.setText("Spin box value: " + str(valueText))
 
     # All application events are passed throught this event filter.
     # We're using it to display some information about a clicked