1j01/textual-paint
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Use straightforward properties instead of storing information in IDs

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Sure, I'm tacking on these properties, but it's better to tack onto
objects than to tack onto strings. I'm not using a type checker yet,
but this is a better situation for type checking. (I could extend Button
with mini classes within ToolsBox and ColorsBox, if need be, to give
clear ownership of these properties.)
This commit is contained in:
Isaiah Odhner 2023-04-20 23:27:39 -04:00
parent 24076d9af5
commit 0f4a154eda
1 changed files with 14 additions and 12 deletions
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26
paint.py
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@ -311,8 +311,10 @@ class ToolsBox(Container):
with Container(id="tools_box"):
# tool buttons
for tool in Tool:
button = Button(tool.get_icon(), id="tool_button_" + tool.name)
# TODO: tooltip with tool.get_name()
button = Button(tool.get_icon(), classes="tool_button")
button.can_focus = False
button.represented_tool = tool
yield button
class CharInput(Input):
@ -355,9 +357,10 @@ class ColorsBox(Container):
yield CharInput(id="selected_color", classes="color_well")
with Container(id="available_colors"):
for color in palette:
button = Button("", id="color_button_" + color, classes="color_well")
button = Button("", classes="color_button color_well")
button.styles.background = color
button.can_focus = False
button.represented_color = color
yield button
@ -922,8 +925,11 @@ class PaintApp(App):
def watch_selected_tool(self, old_selected_tool: Tool, selected_tool: Tool) -> None:
"""Called when selected_tool changes."""
self.query_one("#tool_button_" + old_selected_tool.name).remove_class("selected")
self.query_one("#tool_button_" + selected_tool.name).add_class("selected")
for button in self.query(".tool_button"):
if button.represented_tool == selected_tool:
button.add_class("selected")
else:
button.remove_class("selected")
def watch_selected_color(self, old_selected_color: str, selected_color: str) -> None:
"""Called when selected_color changes."""
@ -1690,14 +1696,10 @@ class PaintApp(App):
def on_button_pressed(self, event: Button.Pressed) -> None:
"""Called when a button is clicked or activated with the keyboard."""
button_id = event.button.id
# button_classes = event.button.classes
if button_id:
if button_id.startswith("tool_button_"):
self.selected_tool = Tool[button_id[len("tool_button_") :]]
elif button_id.startswith("color_button_"):
self.selected_color = button_id[len("color_button_") :]
if "tool_button" in event.button.classes:
self.selected_tool = event.button.represented_tool
elif "color_button" in event.button.classes:
self.selected_color = event.button.represented_color
def on_tree_node_highlighted(self, event: Tree.NodeHighlighted) -> None:
"""