system/ui: add MultiOptionDialog for selection from scrollable lists (#35176)

* add MultiOptionDialog for selection from scrollable lists

* mv

---------

Co-authored-by: Cameron Clough <cameronjclough@gmail.com>

system/ui/lib/button.py

@@ -10,6 +10,12 @@ class ButtonStyle(IntEnum):
   TRANSPARENT = 3  # For buttons with transparent background and border
 
 
+class TextAlignment(IntEnum):
+  LEFT = 0
+  CENTER = 1
+  RIGHT = 2
+
+
 DEFAULT_BUTTON_FONT_SIZE = 60
 BUTTON_ENABLED_TEXT_COLOR = rl.Color(228, 228, 228, 255)
 BUTTON_DISABLED_TEXT_COLOR = rl.Color(228, 228, 228, 51)
@@ -38,6 +44,8 @@ def gui_button(
   button_style: ButtonStyle = ButtonStyle.NORMAL,
   is_enabled: bool = True,
   border_radius: int = 10,  # Corner rounding in pixels
+  text_alignment: TextAlignment = TextAlignment.CENTER,
+  text_padding: int = 20,  # Padding for left/right alignment
 ) -> int:
   result = 0
 
@@ -58,11 +66,16 @@ def gui_button(
     rl.draw_rectangle_rounded_lines_ex(rect, roundness, 20, 2, rl.WHITE)
 
   font = gui_app.font(font_weight)
-  # Center text in the button
   text_size = rl.measure_text_ex(font, text, font_size, 0)
-  text_pos = rl.Vector2(
-    rect.x + (rect.width - text_size.x) // 2, rect.y + (rect.height - text_size.y) // 2
-  )
+  text_pos = rl.Vector2(0, rect.y + (rect.height - text_size.y) // 2)  # Vertical centering
+
+  # Horizontal alignment
+  if text_alignment == TextAlignment.LEFT:
+    text_pos.x = rect.x + text_padding
+  elif text_alignment == TextAlignment.CENTER:
+    text_pos.x = rect.x + (rect.width - text_size.x) // 2
+  elif text_alignment == TextAlignment.RIGHT:
+    text_pos.x = rect.x + rect.width - text_size.x - text_padding
 
   # Draw the button text
   text_color = BUTTON_ENABLED_TEXT_COLOR if is_enabled else BUTTON_DISABLED_TEXT_COLOR

system/ui/widgets/option_dialog.py

@@ -0,0 +1,81 @@
+import pyray as rl
+
+from openpilot.system.ui.lib.button import gui_button, ButtonStyle, TextAlignment
+from openpilot.system.ui.lib.label import gui_label
+from openpilot.system.ui.lib.scroll_panel import GuiScrollPanel
+
+
+class MultiOptionDialog:
+  def __init__(self, title, options, current=""):
+    self._title = title
+    self._options = options
+    self._current = current if current in options else ""
+    self._selection = self._current
+    self._option_height = 80
+    self._padding = 20
+    self.scroll_panel = GuiScrollPanel()
+
+  @property
+  def selection(self):
+    return self._selection
+
+  def render(self, rect):
+    title_rect = rl.Rectangle(rect.x + self._padding, rect.y + self._padding, rect.width - 2 * self._padding, 70)
+    gui_label(title_rect, self._title, 70)
+
+    options_y_start = rect.y + 120
+    options_height = len(self._options) * (self._option_height + 10)
+    options_rect = rl.Rectangle(rect.x + self._padding, options_y_start, rect.width - 2 * self._padding, options_height)
+
+    view_rect = rl.Rectangle(
+      rect.x + self._padding, options_y_start, rect.width - 2 * self._padding, rect.height - 200 - 2 * self._padding
+    )
+
+    offset = self.scroll_panel.handle_scroll(view_rect, options_rect)
+    is_click_valid = self.scroll_panel.is_click_valid()
+
+    rl.begin_scissor_mode(int(view_rect.x), int(view_rect.y), int(view_rect.width), int(view_rect.height))
+
+    for i, option in enumerate(self._options):
+      y_pos = view_rect.y + i * (self._option_height + 10) + offset.y
+      item_rect = rl.Rectangle(view_rect.x, y_pos, view_rect.width, self._option_height)
+
+      if not rl.check_collision_recs(item_rect, view_rect):
+        continue
+
+      is_selected = option == self._selection
+      button_style = ButtonStyle.PRIMARY if is_selected else ButtonStyle.NORMAL
+
+      if gui_button(item_rect, option, button_style=button_style, text_alignment=TextAlignment.LEFT) and is_click_valid:
+        self._selection = option
+
+    rl.end_scissor_mode()
+
+    button_y = rect.y + rect.height - 80 - self._padding
+    button_width = (rect.width - 3 * self._padding) / 2
+
+    cancel_rect = rl.Rectangle(rect.x + self._padding, button_y, button_width, 80)
+    if gui_button(cancel_rect, "Cancel"):
+      return 0  # Canceled
+
+    select_rect = rl.Rectangle(rect.x + 2 * self._padding + button_width, button_y, button_width, 80)
+    has_new_selection = self._selection != "" and self._selection != self._current
+
+    if gui_button(select_rect, "Select", is_enabled=has_new_selection, button_style=ButtonStyle.PRIMARY):
+      return 1  # Selected
+
+    return -1  # Still active
+
+
+if __name__ == "__main__":
+  from openpilot.system.ui.lib.application import gui_app
+
+  gui_app.init_window("Multi Option Dialog Example")
+  options = [f"Option {i}" for i in range(1, 11)]
+  dialog = MultiOptionDialog("Choose an option", options, options[0])
+
+  for _ in gui_app.render():
+    result = dialog.render(rl.Rectangle(100, 100, 1024, 800))
+    if result >= 0:
+      print(f"Selected: {dialog.selection}" if result > 0 else "Canceled")
+      break