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					75 lines
				
				2.4 KiB
			
		
		
			
		
	
	
					75 lines
				
				2.4 KiB
			| 
											4 months ago
										 | import pyray as rl
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|  | from openpilot.system.ui.lib.widget import Widget
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|  | from openpilot.system.ui.lib.scroll_panel import GuiScrollPanel
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|  | 
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|  | ITEM_SPACING = 40
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|  | LINE_COLOR = rl.GRAY
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|  | LINE_PADDING = 40
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|  | 
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|  | 
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|  | class LineSeparator(Widget):
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|  |   def __init__(self, height: int = 1):
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|  |     super().__init__()
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|  |     self._rect = rl.Rectangle(0, 0, 0, height)
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|  | 
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|  |   def set_parent_rect(self, parent_rect: rl.Rectangle) -> None:
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|  |     super().set_parent_rect(parent_rect)
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|  |     self._rect.width = parent_rect.width
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|  | 
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|  |   def _render(self, _):
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|  |     rl.draw_line(int(self._rect.x) + LINE_PADDING, int(self._rect.y),
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|  |                  int(self._rect.x + self._rect.width) - LINE_PADDING * 2, int(self._rect.y),
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|  |                  LINE_COLOR)
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|  | 
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|  | 
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|  | class Scroller(Widget):
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|  |   def __init__(self, items: list[Widget], spacing: int = ITEM_SPACING, line_separator: bool = False, pad_end: bool = True):
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|  |     super().__init__()
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|  |     self._items: list[Widget] = []
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|  |     self._spacing = spacing
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|  |     self._line_separator = line_separator
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|  |     self._pad_end = pad_end
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|  | 
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|  |     self.scroll_panel = GuiScrollPanel()
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|  | 
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|  |     for item in items:
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|  |       self.add_widget(item)
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|  | 
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|  |   def add_widget(self, item: Widget) -> None:
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|  |     if self._line_separator and len(self._items) > 0:
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|  |       self._items.append(LineSeparator())
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|  |     self._items.append(item)
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|  |     item.set_touch_valid_callback(self.scroll_panel.is_touch_valid)
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|  | 
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|  |   def _render(self, _):
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|  |     # TODO: don't draw items that are not in the viewport
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|  |     visible_items = [item for item in self._items if item.is_visible]
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|  |     content_height = sum(item.rect.height for item in visible_items) + self._spacing * (len(visible_items))
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|  |     if not self._pad_end:
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|  |       content_height -= self._spacing
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|  |     scroll = self.scroll_panel.handle_scroll(self._rect, rl.Rectangle(0, 0, self._rect.width, content_height))
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|  | 
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|  |     rl.begin_scissor_mode(int(self._rect.x), int(self._rect.y),
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|  |                           int(self._rect.width), int(self._rect.height))
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|  | 
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|  |     cur_height = 0
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|  |     for idx, item in enumerate(visible_items):
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|  |       if not item.is_visible:
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|  |         continue
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|  | 
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|  |       # Nicely lay out items vertically
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|  |       x = self._rect.x
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|  |       y = self._rect.y + cur_height + self._spacing * (idx != 0)
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|  |       cur_height += item.rect.height + self._spacing * (idx != 0)
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|  | 
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|  |       # Consider scroll
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|  |       x += scroll.x
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|  |       y += scroll.y
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|  | 
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|  |       # Update item state
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|  |       item.set_position(x, y)
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|  |       item.set_parent_rect(self._rect)
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|  |       item.render()
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|  | 
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|  |     rl.end_scissor_mode()
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