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Navigate history with arrows

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In single line query mode, the history can be navigated
in a way that is somewhat similar to the shell.
This commit is contained in:
Salvo 'LtWorf' Tomaselli 2016-01-02 12:36:28 +01:00
parent 99b3a10b68
commit e017949f7d
1 changed files with 22 additions and 0 deletions
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22
relational_gui/guihandler.py
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@ -39,6 +39,7 @@ class relForm(QtWidgets.QMainWindow):
self.ui = maingui.Ui_MainWindow()
self.qcounter = 1 # Query counter
self.user_interface = UserInterface()
self.history_current_line = None
# Creates the UI
self.ui.setupUi(self)
@ -70,10 +71,29 @@ class relForm(QtWidgets.QMainWindow):
# Shortcuts
shortcuts = (
(self.ui.lstRelations, QtGui.QKeySequence.Delete, self.unloadRelation),
(self.ui.txtQuery, QtGui.QKeySequence.MoveToNextLine, self.next_history),
(self.ui.txtQuery, QtGui.QKeySequence.MoveToPreviousLine, self.prev_history),
)
self.add_shortcuts(shortcuts)
def next_history(self):
if self.ui.lstHistory.currentRow() + 1 == self.ui.lstHistory.count() and self.history_current_line:
self.ui.txtResult.setText(self.history_current_line[0])
self.ui.txtQuery.setText(self.history_current_line[1])
self.history_current_line = None
elif self.history_current_line:
self.ui.lstHistory.setCurrentRow(self.ui.lstHistory.currentRow()+1)
self.resumeHistory(self.ui.lstHistory.currentItem())
def prev_history(self):
if self.history_current_line is None:
self.history_current_line = (self.ui.txtResult.text(), self.ui.txtQuery.text())
self.resumeHistory(self.ui.lstHistory.currentItem())
elif self.ui.lstHistory.currentRow() > 0:
self.ui.lstHistory.setCurrentRow(self.ui.lstHistory.currentRow()-1)
self.resumeHistory(self.ui.lstHistory.currentItem())
def add_shortcuts(self, shortcuts):
for widget,shortcut,slot in shortcuts:
action = QtWidgets.QAction(self)
@ -132,6 +152,8 @@ class relForm(QtWidgets.QMainWindow):
self.error(e)
def resumeHistory(self, item):
if item is None:
return
itm = item.text().split(' = ', 1)
self.ui.txtResult.setText(itm[0])
self.ui.txtQuery.setText(itm[1])