@ -24,6 +24,7 @@ import about
class Ui_Form ( object ) :
def __init__ ( self ) :
self . Dialog = None
self . relations = { } #Dictionary for relations
def execute ( self ) :
try :
@ -37,32 +38,32 @@ class Ui_Form(object):
self . txtResult . setText ( " " )
if len ( res_rel ) == 0 :
res_rel = " last_ "
self . relations [ res_rel ] = result
self . updateRelations ( )
self . showRelation ( result )
except :
print
#QtGui.QMessageBox.information(None,QtGui.QApplication.translate("Form", "Error"), str(traceback.print_exc()))
QtGui . QMessageBox . information ( None , QtGui . QApplication . translate ( " Form " , " Error " ) , QtGui . QApplication . translate ( " Form " , " Check your query! " ) )
def showRelation ( self , rel ) :
self . table . clear ( )
for i in range ( self . table . headerItem ( ) . columnCount ( ) ) :
self . table . headerItem ( ) . setText ( i , " " )
if rel == None :
self . table . setColumnCount ( 1 )
self . table . headerItem ( ) . setText ( 0 , " Empty relation " )
return
for i in range ( len ( rel . header . attributes ) ) :
self . table . headerItem ( ) . setText ( i , rel . header . attributes [ i ] )
self . table . setColumnCount ( len ( rel . header . attributes ) )
for i in rel . content :
item = QtGui . QTreeWidgetItem ( )
for j in range ( len ( i ) ) :
item . setText ( j , i [ j ] )
self . table . addTopLevelItem ( item )
for i in range ( len ( rel . header . attributes ) ) :
self . table . headerItem ( ) . setText ( i , rel . header . attributes [ i ] )
self . table . resizeColumnToContents ( i )
def printRelation ( self , * rel ) :
for i in rel :
@ -85,11 +86,12 @@ class Ui_Form(object):
del self . relations [ str ( i . text ( ) . toUtf8 ( ) ) ]
self . updateRelations ( )
def showAbout ( self ) :
Dialog = QtGui . QDialog ( )
ui = about . Ui_Dialog ( )
ui . setupUi ( Dialog )
Dialog . show ( )
sys . exit ( app . exec_ ( ) )
if self . Dialog == None :
self . Dialog = QtGui . QDialog ( )
ui = about . Ui_Dialog ( )
ui . setupUi ( self . Dialog )
self . Dialog . show ( )
#sys.exit(app.exec_())
def loadRelation ( self ) :
res = QtGui . QInputDialog . getText ( None , QtGui . QApplication . translate ( " Form " , " New relation " ) , QtGui . QApplication . translate ( " Form " , " Insert the name for the new relation " ) )
@ -98,31 +100,43 @@ class Ui_Form(object):
filename = QtGui . QFileDialog . getOpenFileName ( None , QtGui . QApplication . translate ( " Form " , " Load Relation " ) , " " , QtGui . QApplication . translate ( " Form " , " Relations (*.tlb);;Text Files (*.txt);;All Files (*) " ) )
self . relations [ str ( res [ 0 ] . toUtf8 ( ) ) ] = relation . relation ( filename )
self . updateRelations ( )
def addProduct ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + " * " )
self . txtQuery . insert ( u " * " )
self . txtQuery . setFocus ( )
def addDifference ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " - " )
self . txtQuery . insert ( u " - " )
self . txtQuery . setFocus ( )
def addUnion ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᑌ " )
self . txtQuery . insert ( u " ᑌ " )
self . txtQuery . setFocus ( )
def addIntersection ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᑎ " )
self . txtQuery . insert ( u " ᑎ " )
self . txtQuery . setFocus ( )
def addOLeft ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᐅLEFTᐊ " )
self . txtQuery . insert ( u " ᐅLEFTᐊ " )
self . txtQuery . setFocus ( )
def addJoin ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᐅᐊ " )
self . txtQuery . insert ( u " ᐅᐊ " )
self . txtQuery . setFocus ( )
def addORight ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᐅRIGHTᐊ " )
self . txtQuery . insert ( u " ᐅRIGHTᐊ " )
self . txtQuery . setFocus ( )
def addOuter ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ᐅFULLᐊ " )
self . txtQuery . insert ( u " ᐅFULLᐊ " )
self . txtQuery . setFocus ( )
def addProjection ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " π " )
self . txtQuery . insert ( u " π " )
self . txtQuery . setFocus ( )
def addSelection ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " σ " )
self . txtQuery . insert ( u " σ " )
self . txtQuery . setFocus ( )
def addRename ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ρ " )
self . txtQuery . insert ( u " ρ " )
self . txtQuery . setFocus ( )
def addArrow ( self ) :
self . txtQuery . setText ( self . txtQuery . text ( ) + u " ➡ " )
self . txtQuery . insert ( u " ➡ " )
self . txtQuery . setFocus ( )
def setupUi ( self , Form ) :
Form . setObjectName ( " Form " )
@ -263,6 +277,7 @@ class Ui_Form(object):
self . label_2 . setBuddy ( self . txtQuery )
self . retranslateUi ( Form )
QtCore . QObject . connect ( self . txtQuery , QtCore . SIGNAL ( " returnPressed() " ) , self . execute )
QtCore . QObject . connect ( self . cmdAbout , QtCore . SIGNAL ( " clicked() " ) , self . showAbout )
QtCore . QObject . connect ( self . cmdProduct , QtCore . SIGNAL ( " clicked() " ) , self . addProduct )
QtCore . QObject . connect ( self . cmdDifference , QtCore . SIGNAL ( " clicked() " ) , self . addDifference )
LtWorf