add value changed signal for extent parameter widget wrapper

alexbruy · alexbruy · commit 6c6b075ee9d6 · 2019-01-01T08:08:36.000+02:00
(cherry picked from commit 37f14f8)
diff --git a/python/plugins/processing/gui/ExtentSelectionPanel.py b/python/plugins/processing/gui/ExtentSelectionPanel.py
@@ -31,7 +31,7 @@
 from qgis.PyQt import uic
 from qgis.PyQt.QtWidgets import QMenu, QAction, QInputDialog
 from qgis.PyQt.QtGui import QCursor
-from qgis.PyQt.QtCore import QCoreApplication
+from qgis.PyQt.QtCore import QCoreApplication, pyqtSignal
 
 from qgis.gui import QgsMessageBar
 from qgis.utils import iface
@@ -56,10 +56,14 @@
 
 class ExtentSelectionPanel(BASE, WIDGET):
 
+    hasChanged = pyqtSignal()
+
     def __init__(self, dialog, param):
         super(ExtentSelectionPanel, self).__init__(None)
         self.setupUi(self)
 
+        self.leText.textChanged.connect(lambda: self.hasChanged.emit())
+
         self.dialog = dialog
         self.param = param
         self.crs = QgsProject.instance().crs()
diff --git a/python/plugins/processing/gui/wrappers.py b/python/plugins/processing/gui/wrappers.py
@@ -393,7 +393,9 @@ class ExtentWidgetWrapper(WidgetWrapper):
 
     def createWidget(self):
         if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
-            return ExtentSelectionPanel(self.dialog, self.parameterDefinition())
+            widget = ExtentSelectionPanel(self.dialog, self.parameterDefinition())
+            widget.hasChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
+            return widget
         else:
             widget = QComboBox()
             widget.setEditable(True)
