Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/E5Gui/E5TableView.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2009 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing specialized table views.
+"""
+
+from __future__ import unicode_literals
+
+from PyQt5.QtCore import Qt, QItemSelectionModel
+from PyQt5.QtWidgets import QTableView
+
+
+class E5TableView(QTableView):
+    """
+    Class implementing a table view supporting removal of entries.
+    """
+    def keyPressEvent(self, evt):
+        """
+        Protected method implementing special key handling.
+        
+        @param evt reference to the event (QKeyEvent)
+        """
+        if evt.key() in [Qt.Key_Delete, Qt.Key_Backspace] and \
+           self.model() is not None:
+            self.removeSelected()
+            evt.setAccepted(True)
+        else:
+            super(E5TableView, self).keyPressEvent(evt)
+    
+    def removeSelected(self):
+        """
+        Public method to remove the selected entries.
+        """
+        if self.model() is None or self.selectionModel() is None:
+            # no models available
+            return
+        
+        row = 0
+        selectedRows = self.selectionModel().selectedRows()
+        for selectedRow in reversed(selectedRows):
+            row = selectedRow.row()
+            self.model().removeRow(row, self.rootIndex())
+        
+        idx = self.model().index(row, 0, self.rootIndex())
+        if not idx.isValid():
+            idx = self.model().index(row - 1, 0, self.rootIndex())
+        self.selectionModel().select(
+            idx,
+            QItemSelectionModel.SelectCurrent | QItemSelectionModel.Rows)
+        self.setCurrentIndex(idx)
+    
+    def removeAll(self):
+        """
+        Public method to clear the view.
+        """
+        if self.model() is not None:
+            self.model().removeRows(0, self.model().rowCount(self.rootIndex()),
+                                    self.rootIndex())