Star System tab

It's janky (I used the canvas item id for the ovals rather than the DB
id column values!) but it kind of works.

It's a little too dramatic to switch tabs, I think it would tend to
undermine or at least not support spacial memory?

It seems like a reasonable thing to bind the details of the stars when
we draw them, because we have them then, eh?  The other thing to do
would be just bind the DB id and look up info in the DB as needed in
event handlers and such?

README.md

@@ -160,3 +160,16 @@ result between the parties) can stand in for a battle or war in this
 game.
 
 
+Sat Apr 13 21:46:16 PDT 2024
+
+For selecting a star and showing some data about it one option is a
+static pane of widgets, like on the side.  Another option is to have a
+tooltip kind of a thing, but not transient as in you should be able to
+select text on it?  click controls?
+A third option is to populate a notebook tab and switch to it?  That
+seems dramatic.
+
+The first and second options are easy to implement, the tooltip needs
+positioning logic.  Let's exercise the notebook...
+
+

ui.py

@@ -24,6 +24,8 @@ from tkinter.ttk import Notebook
 import data, stars
 
 
+DARK_GRAY = '#222'
+
 class App:
     '''
     A canvas with scrolling support.
@@ -33,6 +35,8 @@ class App:
         notebook = self.notebook = Notebook(master)
         notebook.enable_traversal()
 
+        # Star Map
+
         frame = self.frame = Frame(None, background='green')
         # When putting a frame into a Notebook you use the add() method.
         # but what should the parent of the frame be?  The Notebook?
@@ -67,12 +71,34 @@ class App:
 
         canvas.bind("<Configure>", self.handle_canvas_resize)
 
+        # Star System
+
+        star_system_frame = self.star_system_frame = Frame(None, bg=DARK_GRAY)
+        star_system_frame.columnconfigure(0, weight=1)
+
+        star_name_label = self.star_name_label = Label(star_system_frame, text='Star Name', bg='green', fg='white', anchor=W)
+        star_name_label.grid(row=0, column=0, sticky=E+W)
+
+        star_x_label = self.star_x_label = Label(star_system_frame, text='x', bg='green', fg='white', anchor=W)
+        star_x_label.grid(row=1, column=0, sticky=E+W)
+        star_y_label = self.star_y_label = Label(star_system_frame, text='y', bg='green', fg='white', anchor=W)
+        star_y_label.grid(row=2, column=0, sticky=E+W)
+
+        # Notebook Tabs
+
         notebook.add(frame, text='Star Map', underline=5)
+        notebook.add(star_system_frame, text='Star System', underline=6)
+        self.star_system_tab_id = notebook.tabs()[-1]
         notebook.pack(expand=True, fill=BOTH)
 
     def handle_canvas_resize(self, event):
         print(event)
 
+    def update_star_system_tab(self, star_id, x, y):
+        self.star_name_label['text'] = str(star_id)
+        self.star_x_label['text'] = f'x: {x}'
+        self.star_y_label['text'] = f'y: {y}'
+        self.notebook.select(self.star_system_tab_id)
 
 data.open_db()
 
@@ -89,7 +115,13 @@ for x, y, radius in stars.iter_stars(data.conn):
         activeoutline='orange',
         activewidth=3,
         )
-    app.canvas.tag_bind(star_id, '<Enter>', (lambda event, x=x, y=y: root.title(f'{x}, {y}')))
+    app.canvas.tag_bind(
+        star_id,
+        '<ButtonRelease-1>',
+        (lambda event, star_id=star_id, x=x, y=y:
+         app.update_star_system_tab(star_id, x, y)
+         )
+        )
 
 ##app.frame.mainloop()
 ##data.close_db()