ENH: added dialog for retrieving simple textual info from the user

Author: che85

Resources/UI/TextInformationRequestDialog.ui

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>300</width>
+    <height>94</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_2">
+   <item row="0" column="0">
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>TextLabel</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="lineEdit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0" colspan="2">
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

SlicerDevelopmentToolboxUtils/widgets.py

@@ -1965,3 +1965,44 @@ def _disconnectButton(self, button):
   def _onOptionSelected(self, value):
     self.selectedOption = value
     self.button(qt.QMessageBox.Ok).enabled = True
+
+
+class TextInformationRequestDialog(qt.QDialog):
+
+  def __init__(self, attributeName, parent=None):
+    qt.QDialog.__init__(self, parent)
+    self._attributeName = attributeName
+    self.setup()
+    self._setupConnections()
+
+  def setup(self):
+    self.setLayout(qt.QGridLayout())
+    self._loadUI()
+    self.layout().addWidget(self.ui)
+
+  def _loadUI(self):
+    import inspect
+    modulePath = os.path.dirname(os.path.normpath(os.path.dirname(inspect.getfile(self.__class__))))
+    modulePath = modulePath.replace("SlicerDevelopmentToolboxUtils", "")
+    path = os.path.join(modulePath, 'Resources', 'UI', 'TextInformationRequestDialog.ui')
+    self.ui = slicer.util.loadUI(path)
+    self._lineEdit = self.ui.findChild(qt.QLineEdit, "lineEdit")
+    self._label = self.ui.findChild(qt.QLabel, "label")
+    self._label.setText(self._attributeName)
+    self._buttonBox = self.ui.findChild(qt.QDialogButtonBox, "buttonBox")
+
+  def _setupConnections(self):
+    def setupConnections(funcName="connect"):
+      getattr(self._buttonBox.accepted, funcName)(self.accept)
+      getattr(self._buttonBox.rejected, funcName)(self.reject)
+      getattr(self._lineEdit.textChanged, funcName)(self._onTextChanged)
+
+    setupConnections()
+    slicer.app.connect('aboutToQuit()', self.deleteLater)
+    self.destroyed.connect(lambda : setupConnections(funcName="disconnect"))
+
+  def _onTextChanged(self, text):
+    self._buttonBox.button(qt.QDialogButtonBox.Ok).enabled = bool(text.strip())
+
+  def getValue(self):
+    return self._lineEdit.text