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75 lines
2.4 KiB
75 lines
2.4 KiB
2 days ago
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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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ITEM_SPACING = 40
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LINE_COLOR = rl.GRAY
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LINE_PADDING = 40
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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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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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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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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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self.scroll_panel = GuiScrollPanel()
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for item in items:
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self.add_widget(item)
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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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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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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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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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# 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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# Consider scroll
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x += scroll.x
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y += scroll.y
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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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rl.end_scissor_mode()
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