added nicer SearchBox

grum/dictlist/dictlist.py

@@ -1,6 +1,7 @@
 from PyQt5.QtWidgets import QWidget, QLineEdit, QVBoxLayout
 
 from .dictlistwidget import DictListWidget
+from .searchbox import SearchBox
 
 
 class DictList(QWidget):
@@ -8,13 +9,12 @@ class DictList(QWidget):
     def __init__(self, *args, **kwargs):
         super().__init__()
 
-        search = QLineEdit()
-        search.setPlaceholderText("Search...")
+        search = SearchBox()
         self.lst = lst = DictListWidget(*args, **kwargs)
 
         lay = QVBoxLayout()
         lay.setContentsMargins(0, 0, 0, 0)
-        lay.setSpacing(2)
+        lay.setSpacing(0)
         lay.addWidget(lst)
         lay.addWidget(search)
         self.setLayout(lay)

grum/dictlist/searchbox.py

@@ -0,0 +1,50 @@
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QWidget, QLineEdit, QPushButton, QHBoxLayout, QStyle
+
+
+class SearchBox(QWidget):
+
+    def __init__(self, *args, **kwargs):
+        super().__init__()
+
+        self.txt = txt = QLineEdit(*args, **kwargs)
+        txt.setPlaceholderText("Search...")
+
+        btn = SquareButton()
+        btn.setFlat(True)
+
+        pmap = QStyle.SP_DialogCloseButton
+        icon = self.style().standardIcon(pmap)
+        btn.setIcon(icon)
+
+        lay = QHBoxLayout()
+        lay.setContentsMargins(2, 2, 0, 2)
+        lay.setSpacing(0)
+        lay.addWidget(txt)
+        lay.addWidget(btn)
+        self.setLayout(lay)
+
+        btn.clicked.connect(self.txt.clear)
+
+
+    # behave like encapsulated QLineEdit
+    def __getattr__(self, name):
+        return getattr(self.txt, name)
+
+
+    def keyPressEvent(self, event):
+        key = event.key()
+        if key == Qt.Key_Escape:
+            self.txt.clear()
+        super().keyPressEvent(event)
+
+
+
+class SquareButton(QPushButton):
+
+    def resizeEvent(self, e):
+        height = self.height()
+        self.setMinimumWidth(height)
+
+
+