Move ToolsBox to a new file

src/textual_paint/paint.py

@@ -62,6 +62,7 @@ from textual_paint.menus import Menu, MenuBar, MenuItem, Separator
 from textual_paint.palette_data import DEFAULT_PALETTE, IRC_PALETTE
 from textual_paint.rasterize_ansi_art import rasterize
 from textual_paint.tool import Tool
+from textual_paint.toolbox import ToolsBox
 from textual_paint.wallpaper import get_config_dir, set_wallpaper
 from textual_paint.windows import DialogWindow, MessageBox, Window
 
@@ -76,36 +77,6 @@ load_language(args.language)
 
 palette = list(DEFAULT_PALETTE)
 
-class ToolsBox(Container):
-    """Widget containing tool buttons"""
-
-    class ToolSelected(Message):
-        """Message sent when a tool is selected."""
-        def __init__(self, tool: Tool) -> None:
-            self.tool = tool
-            super().__init__()
-
-    def compose(self) -> ComposeResult:
-        """Add our buttons."""
-        self.tool_by_button: dict[Button, Tool] = {}
-        for tool in Tool:
-            button = Button(tool.get_icon(), classes="tool_button")
-            button.can_focus = False
-            # TODO: ideally, position tooltip centered under the tool button,
-            # so that it never obscures the tool icon you're hovering over,
-            # and make it appear immediately if a tooltip was already visible
-            # (tooltip should hide and delay should return if moving to a button below,
-            # to allow for easy scanning of the buttons, but not if moving above or to the side)
-            button.tooltip = tool.get_name()
-            self.tool_by_button[button] = tool
-            yield button
-
-    def on_button_pressed(self, event: Button.Pressed) -> None:
-        """Called when a button is clicked."""
-
-        if "tool_button" in event.button.classes:
-            self.post_message(self.ToolSelected(self.tool_by_button[event.button]))
-
 class CharInput(Input, inherit_bindings=False):
     """Widget for entering a single character."""
 

src/textual_paint/toolbox.py

@@ -0,0 +1,39 @@
+"""Container for tool buttons."""
+
+from textual.app import ComposeResult
+from textual.containers import Container
+from textual.message import Message
+from textual.widgets import Button
+
+from textual_paint.tool import Tool
+
+
+class ToolsBox(Container):
+    """Widget containing tool buttons"""
+
+    class ToolSelected(Message):
+        """Message sent when a tool is selected."""
+        def __init__(self, tool: Tool) -> None:
+            self.tool = tool
+            super().__init__()
+
+    def compose(self) -> ComposeResult:
+        """Add our buttons."""
+        self.tool_by_button: dict[Button, Tool] = {}
+        for tool in Tool:
+            button = Button(tool.get_icon(), classes="tool_button")
+            button.can_focus = False
+            # TODO: ideally, position tooltip centered under the tool button,
+            # so that it never obscures the tool icon you're hovering over,
+            # and make it appear immediately if a tooltip was already visible
+            # (tooltip should hide and delay should return if moving to a button below,
+            # to allow for easy scanning of the buttons, but not if moving above or to the side)
+            button.tooltip = tool.get_name()
+            self.tool_by_button[button] = tool
+            yield button
+
+    def on_button_pressed(self, event: Button.Pressed) -> None:
+        """Called when a button is clicked."""
+
+        if "tool_button" in event.button.classes:
+            self.post_message(self.ToolSelected(self.tool_by_button[event.button]))