improved GUI
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@27 014f5005-505e-4b48-8d0a-63407b615a7c
This commit is contained in:
LtWorf
parent
20da34964c
commit
18a986605f
110
maingui.py
110
maingui.py
@ -8,11 +8,61 @@
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# WARNING! All changes made in this file will be lost!
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from PyQt4 import QtCore, QtGui
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import relation
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import parser
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class Ui_Form(object):
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def __init__(self):
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self.relations={} #Dictionary for relations
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def execute(self):
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self.txtQuery.text()
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expr=parser.parse(self.txtQuery.text())
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result=eval(expr,self.relations)
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if len(self.txtResult.text())!=0:
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self.relations[showAttributes]=result
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self.updateRelations()
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self.showRelation(result)
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def showRelation(self,rel):
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self.table.clear()
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for i in range(len(rel.header.attributes)):
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self.table.headerItem().setText(i,rel.header.attributes[i])
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for i in rel.content:
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item = QtGui.QTreeWidgetItem()
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for j in range(len(i)):
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item.setText(j, i[j])
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self.table.addTopLevelItem(item)
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def printRelation(self,*rel):
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for i in rel:
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self.showRelation(self.relations[i.text()])
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def showAttributes(self,*other):
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for i in other:
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rel=i.text()
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self.lstAttributes.clear()
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for j in self.relations[rel].header.attributes:
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self.lstAttributes.addItem (j)
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def updateRelations(self):
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self.lstRelations.clear()
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for i in self.relations:
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self.lstRelations.addItem(i)
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def unloadRelation(self):
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for i in self.lstRelations.selectedItems():
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del self.relations[i.text()]
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self.updateRelations()
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def showAbout(self):
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QtGui.QMessageBox.information(None,QtGui.QApplication.translate("Form", "About"),
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QtGui.QApplication.translate("Form", "Relational Algebra by Salvo 'LtWorf' Tomaselli", None, QtGui.QApplication.UnicodeUTF8))
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def loadRelation(self):
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res=QtGui.QInputDialog.getText(None, QtGui.QApplication.translate("Form", "New relation"),QtGui.QApplication.translate("Form", "Insert the name for the new relation"))
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if res[1]==False:
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return
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filename = QtGui.QFileDialog.getOpenFileName(None,QtGui.QApplication.translate("Form", "Load Relation"),"",QtGui.QApplication.translate("Form", "Relations (*.tlb);;Text Files (*.txt);;All Files (*)"))
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self.relations[res[0]]=relation.relation(filename)
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self.updateRelations()
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def addProduct(self):
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self.txtQuery.setText(self.txtQuery.text()+"*")
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def addDifference(self):
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@ -115,9 +165,11 @@ class Ui_Form(object):
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spacerItem = QtGui.QSpacerItem(20,40,QtGui.QSizePolicy.Minimum,QtGui.QSizePolicy.Expanding)
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self.verticalLayout_4.addItem(spacerItem)
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self.horizontalLayout_4.addLayout(self.verticalLayout_4)
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self.tableView = QtGui.QTableView(Form)
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self.tableView.setObjectName("tableView")
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self.horizontalLayout_4.addWidget(self.tableView)
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self.table = QtGui.QTreeWidget(Form) #QtGui.QTableView(Form)
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self.table.setAlternatingRowColors(True)
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self.table.setRootIsDecorated(False)
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self.table.setObjectName("table")
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self.horizontalLayout_4.addWidget(self.table)
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self.verticalLayout_3 = QtGui.QVBoxLayout()
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self.verticalLayout_3.setObjectName("verticalLayout_3")
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self.groupBox_2 = QtGui.QGroupBox(Form)
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@ -125,10 +177,10 @@ class Ui_Form(object):
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self.groupBox_2.setObjectName("groupBox_2")
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self.verticalLayout_5 = QtGui.QVBoxLayout(self.groupBox_2)
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self.verticalLayout_5.setObjectName("verticalLayout_5")
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self.listWidget_2 = QtGui.QListWidget(self.groupBox_2)
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self.listWidget_2.setMaximumSize(QtCore.QSize(300,16777215))
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self.listWidget_2.setObjectName("listWidget_2")
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self.verticalLayout_5.addWidget(self.listWidget_2)
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self.lstRelations = QtGui.QListWidget(self.groupBox_2)
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self.lstRelations.setMaximumSize(QtCore.QSize(300,16777215))
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self.lstRelations.setObjectName("lstRelations")
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self.verticalLayout_5.addWidget(self.lstRelations)
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self.cmdLoad = QtGui.QPushButton(self.groupBox_2)
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self.cmdLoad.setObjectName("cmdLoad")
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self.verticalLayout_5.addWidget(self.cmdLoad)
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@ -141,10 +193,10 @@ class Ui_Form(object):
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self.groupBox_3.setObjectName("groupBox_3")
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self.horizontalLayout_6 = QtGui.QHBoxLayout(self.groupBox_3)
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self.horizontalLayout_6.setObjectName("horizontalLayout_6")
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self.listWidget = QtGui.QListWidget(self.groupBox_3)
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self.listWidget.setMaximumSize(QtCore.QSize(300,16777215))
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self.listWidget.setObjectName("listWidget")
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self.horizontalLayout_6.addWidget(self.listWidget)
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self.lstAttributes = QtGui.QListWidget(self.groupBox_3)
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self.lstAttributes.setMaximumSize(QtCore.QSize(300,16777215))
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self.lstAttributes.setObjectName("lstAttributes")
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self.horizontalLayout_6.addWidget(self.lstAttributes)
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self.verticalLayout_3.addWidget(self.groupBox_3)
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self.horizontalLayout_4.addLayout(self.verticalLayout_3)
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self.verticalLayout_7.addLayout(self.horizontalLayout_4)
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@ -153,10 +205,10 @@ class Ui_Form(object):
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self.label = QtGui.QLabel(Form)
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self.label.setObjectName("label")
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self.horizontalLayout.addWidget(self.label)
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self. txtResult = QtGui.QLineEdit(Form)
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self. txtResult.setMaximumSize(QtCore.QSize(70,16777215))
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self. txtResult.setObjectName(" txtResult")
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self.horizontalLayout.addWidget(self. txtResult)
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self.txtResult = QtGui.QLineEdit(Form)
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self.txtResult.setMaximumSize(QtCore.QSize(70,16777215))
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self.txtResult.setObjectName("txtResult")
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self.horizontalLayout.addWidget(self.txtResult)
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self.label_2 = QtGui.QLabel(Form)
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self.label_2.setObjectName("label_2")
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self.horizontalLayout.addWidget(self.label_2)
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@ -170,7 +222,7 @@ class Ui_Form(object):
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self.cmdExecute.setObjectName("cmdExecute")
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self.horizontalLayout.addWidget(self.cmdExecute)
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self.verticalLayout_7.addLayout(self.horizontalLayout)
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self.label.setBuddy(self. txtResult)
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self.label.setBuddy(self.txtResult)
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self.label_2.setBuddy(self.txtQuery)
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self.retranslateUi(Form)
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@ -187,20 +239,20 @@ class Ui_Form(object):
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QtCore.QObject.connect(self.cmdSelection,QtCore.SIGNAL("clicked()"),self.addSelection)
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QtCore.QObject.connect(self.cmdRename,QtCore.SIGNAL("clicked()"),self.addRename)
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QtCore.QObject.connect(self.cmdArrow,QtCore.SIGNAL("clicked()"),self.addArrow)
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#QtCore.QObject.connect(self.cmdExecute,QtCore.SIGNAL("clicked()"),Form.execute)
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#QtCore.QObject.connect(self.cmdLoad,QtCore.SIGNAL("clicked()"),Form.loadRelation)
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#QtCore.QObject.connect(self.cmdUnload,QtCore.SIGNAL("clicked()"),Form.unloadRelation)
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#QtCore.QObject.connect(self.listWidget_2,QtCore.SIGNAL("itemDoubleClicked(QListWidgetItem*)"),Form.showRelation)
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#QtCore.QObject.connect(self.listWidget_2,QtCore.SIGNAL("itemActivated(QListWidgetItem*)"),Form.showAttributes)
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QtCore.QObject.connect(self.cmdExecute,QtCore.SIGNAL("clicked()"),self.execute)
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QtCore.QObject.connect(self.cmdLoad,QtCore.SIGNAL("clicked()"),self.loadRelation)
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QtCore.QObject.connect(self.cmdUnload,QtCore.SIGNAL("clicked()"),self.unloadRelation)
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QtCore.QObject.connect(self.lstRelations,QtCore.SIGNAL("itemDoubleClicked(QListWidgetItem*)"),self.printRelation)
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QtCore.QObject.connect(self.lstRelations,QtCore.SIGNAL("itemActivated(QListWidgetItem*)"),self.showAttributes)
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QtCore.QMetaObject.connectSlotsByName(Form)
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Form.setTabOrder(self. txtResult,self.txtQuery)
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Form.setTabOrder(self.txtQuery,self.cmdExecute)
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Form.setTabOrder(self.cmdExecute,self.listWidget_2)
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Form.setTabOrder(self.listWidget_2,self.cmdLoad)
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Form.setTabOrder(self.cmdExecute,self.lstRelations)
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Form.setTabOrder(self.lstRelations,self.cmdLoad)
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Form.setTabOrder(self.cmdLoad,self.cmdUnload)
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Form.setTabOrder(self.cmdUnload,self.listWidget)
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Form.setTabOrder(self.listWidget,self.tableView)
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Form.setTabOrder(self.tableView,self.cmdProduct)
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Form.setTabOrder(self.cmdUnload,self.lstAttributes)
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Form.setTabOrder(self.lstAttributes,self.table)
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Form.setTabOrder(self.table,self.cmdProduct)
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Form.setTabOrder(self.cmdProduct,self.cmdUnion)
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Form.setTabOrder(self.cmdUnion,self.cmdJoin)
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Form.setTabOrder(self.cmdJoin,self.cmdOuterLeft)
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@ -238,14 +290,14 @@ class Ui_Form(object):
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self.cmdArrow.setToolTip(QtGui.QApplication.translate("Form", "Rename attribute", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdArrow.setText(QtGui.QApplication.translate("Form", "➡", None, QtGui.QApplication.UnicodeUTF8))
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self.groupBox_2.setTitle(QtGui.QApplication.translate("Form", "Relations", None, QtGui.QApplication.UnicodeUTF8))
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self.listWidget_2.setToolTip(QtGui.QApplication.translate("Form", "List all the relations.\n"
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self.lstRelations.setToolTip(QtGui.QApplication.translate("Form", "List all the relations.\n"
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"Double click on a relation to show it in the table.", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdLoad.setWhatsThis(QtGui.QApplication.translate("Form", "Loads a relation from a file", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdLoad.setText(QtGui.QApplication.translate("Form", "Load relation", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdUnload.setToolTip(QtGui.QApplication.translate("Form", "Unloads a relation", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdUnload.setText(QtGui.QApplication.translate("Form", "Unload relation", None, QtGui.QApplication.UnicodeUTF8))
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self.groupBox_3.setTitle(QtGui.QApplication.translate("Form", "Attributes", None, QtGui.QApplication.UnicodeUTF8))
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self.listWidget.setToolTip(QtGui.QApplication.translate("Form", "Shows the attributes of the current relation", None, QtGui.QApplication.UnicodeUTF8))
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self.lstAttributes.setToolTip(QtGui.QApplication.translate("Form", "Shows the attributes of the current relation", None, QtGui.QApplication.UnicodeUTF8))
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self.label.setText(QtGui.QApplication.translate("Form", "Query", None, QtGui.QApplication.UnicodeUTF8))
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self.label_2.setText(QtGui.QApplication.translate("Form", "=", None, QtGui.QApplication.UnicodeUTF8))
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self.cmdExecute.setText(QtGui.QApplication.translate("Form", "Execute", None, QtGui.QApplication.UnicodeUTF8))
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@ -14,5 +14,4 @@ if __name__ == "__main__":
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ui = maingui.Ui_Form()
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ui.setupUi(Form)
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Form.show()
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Form.setWindowTitle("Relational")
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sys.exit(app.exec_())
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