fixed bug when configuring place_holder in CTkEntry widget TomSchiman…

…sky#330

customtkinter/widgets/ctk_entry.py

@@ -77,7 +77,7 @@ def __init__(self, *args,
         self.entry.bind('<FocusOut>', self.entry_focus_out)
         self.entry.bind('<FocusIn>', self.entry_focus_in)
 
-        self.set_placeholder()
+        self.activate_placeholder()
         self.draw()
 
     def set_scaling(self, *args, **kwargs):
@@ -176,6 +176,8 @@ def configure(self, require_redraw=False, **kwargs):
             if self.placeholder_text_active:
                 self.entry.delete(0, tkinter.END)
                 self.entry.insert(0, self.placeholder_text)
+            else:
+                self.activate_placeholder()
 
         if "placeholder_text_color" in kwargs:
             self.placeholder_text_color = kwargs.pop("placeholder_text_color")
@@ -202,7 +204,7 @@ def configure(self, require_redraw=False, **kwargs):
 
         self.entry.configure(**kwargs)  # pass remaining kwargs to entry
 
-    def set_placeholder(self):
+    def activate_placeholder(self):
         if self.entry.get() == "" and self.placeholder_text is not None and (self.textvariable is None or self.textvariable == ""):
             self.placeholder_text_active = True
 
@@ -211,7 +213,7 @@ def set_placeholder(self):
             self.entry.delete(0, tkinter.END)
             self.entry.insert(0, self.placeholder_text)
 
-    def clear_placeholder(self):
+    def deactivate_placeholder(self):
         if self.placeholder_text_active:
             self.placeholder_text_active = False
 
@@ -221,19 +223,19 @@ def clear_placeholder(self):
                 self.entry[argument] = value
 
     def entry_focus_out(self, event=None):
-        self.set_placeholder()
+        self.activate_placeholder()
 
     def entry_focus_in(self, event=None):
-        self.clear_placeholder()
+        self.deactivate_placeholder()
 
     def delete(self, *args, **kwargs):
         self.entry.delete(*args, **kwargs)
 
         if self.entry.get() == "":
-            self.set_placeholder()
+            self.activate_placeholder()
 
     def insert(self, *args, **kwargs):
-        self.clear_placeholder()
+        self.deactivate_placeholder()
 
         return self.entry.insert(*args, **kwargs)