improved performance in the treeWidget creation

TermTk/TTkWidgets/TTkModelView/treewidgetitem.py

@@ -132,11 +132,13 @@ class TTkTreeWidgetItem(TTkAbstractItemModel):
     def setParent(self, parent):
         self._parentWidget = parent
         if self._hasWidgets:
-            for widget in [w for w in self._widgets if w]:
-                if parent:
-                    parent.layout().addWidget(widget)
-                elif pw := widget.parentWidget():
-                    pw.rootLayout().removeWidget(widget)
+            widgets = [w for w in self._widgets if w]
+            if parent:
+                parent.layout().addWidgets(widgets)
+            else:
+                for widget in widgets:
+                    if pw := widget.parentWidget():
+                        pw.rootLayout().removeWidgets([w for w in self._widgets if w])
         for c in self._children:
             c.setParent(parent)
 

tests/stress/02.many.tree.nodes.py

@@ -0,0 +1,99 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os, argparse, math, random
+
+sys.path.append(os.path.join(sys.path[0],'../..'))
+
+import TermTk as ttk
+
+class _OnOff(ttk.TTkButton):
+    classStyle = ttk.TTkButton.classStyle | {
+                'checked':     {'color': ttk.TTkColor.fg("#00FF00")+ttk.TTkColor.bg("#444400"),
+                                'borderColor': ttk.TTkColor.fg("#FFFFFF"),
+                                'text': 'On',
+                                'grid':0},
+                'unchecked':   {'color': ttk.TTkColor.fg("#FF0000")+ttk.TTkColor.bg("#440000"),
+                                'borderColor': ttk.TTkColor.RST,
+                                'text': 'Off',
+                                'grid':3},
+            }
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def text(self):
+        if self._checked:
+            return self.style()['checked']['text']
+        else:
+            return self.style()['unchecked']['text']
+
+    def paintEvent(self, canvas):
+        if self._checked:
+            style = self.style()['checked']
+        else:
+            style = self.style()['unchecked']
+
+        borderColor = style['borderColor']
+        textColor   = style['color']
+        text = style['text']
+
+        w,h = self.size()
+
+        # Draw the border and bgcolor
+        canvas.drawChar(pos=(0  ,0), color=borderColor ,char='[')
+        canvas.drawChar(pos=(w-1,0), color=borderColor ,char=']')
+        canvas.drawText(pos=(1,0) ,text=text, color=textColor, width=w-2)
+
+
+
+ttk.TTkLog.use_default_file_logging()
+
+root = ttk.TTk(layout=ttk.TTkGridLayout())
+
+root.layout().addWidget(btn:=ttk.TTkButton(text="Add Buttons",border=True,maxHeight=3),0,0)
+root.layout().addWidget(tw:=ttk.TTkTree(),1,0,1,2)
+root.layout().addWidget(ttk.TTkLogViewer(maxHeight=10),2,0,1,2)
+
+tw.setHeaderLabels(          ["Name"  , "Console" , "Fatal" , "Error" , "Mil"  , "Warning" , "Info" , "Entry" , "Exit"])
+tw._treeView._columnsPos =   [ _a:=50 , _b:=_a+10 , _b+6    ,  _b+12  ,  _b+18 , _b+24     , _b+30  , _b+36   , _b+42]
+types = ("Fatal", "Error", "Mil", "Warning", "Info", "Entry", "Exit")
+
+def _addMany():
+    ttk.TTkLog.info("Start Stress!!!")
+    items = []
+    for i in range(300):
+        _item_elements = [f"n: {i=}", 'console']
+        for _t in types:
+            _btn_t = _OnOff(checkable=True, checked=(i%0x07==0))
+            _item_elements.append(_btn_t)
+            # _item_elements.append(_t)
+        _item = ttk.TTkTreeWidgetItem(_item_elements)
+        items.append(_item)
+    tw.addTopLevelItems(items)
+    ttk.TTkLog.info("End Stress!!!")
+
+btn.clicked.connect(_addMany)
+
+root.mainloop()