Release 260111

system/ui/text.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+import re
+import pyray as rl
+from openpilot.system.hardware import HARDWARE
+from openpilot.system.ui.lib.button import gui_button, ButtonStyle
+from openpilot.system.ui.lib.scroll_panel import GuiScrollPanel
+from openpilot.system.ui.lib.application import gui_app
+
+MARGIN = 50
+SPACING = 50
+FONT_SIZE = 72
+LINE_HEIGHT = 80
+BUTTON_SIZE = rl.Vector2(310, 160)
+
+DEMO_TEXT = """This is a sample text that will be wrapped and scrolled if necessary.
+            The text is long enough to demonstrate scrolling and word wrapping.""" * 30
+
+def wrap_text(text, font_size, max_width):
+  lines = []
+  font = gui_app.font()
+
+  for paragraph in text.split("\n"):
+    if not paragraph.strip():
+      lines.append("")
+      continue
+    indent = re.match(r"^\s*", paragraph).group()
+    current_line = indent
+    for word in paragraph.split():
+      test_line = current_line + word + " "
+      if rl.measure_text_ex(font, test_line, font_size, 0).x <= max_width:
+        current_line = test_line
+      else:
+        lines.append(current_line)
+        current_line = word + " "
+    current_line = current_line.rstrip()
+    if current_line:
+      lines.append(current_line)
+
+  return lines
+
+class TextWindow:
+  def __init__(self, text: str):
+    self._textarea_rect = rl.Rectangle(MARGIN, MARGIN, gui_app.width - MARGIN * 2, gui_app.height - MARGIN * 2)
+    self._wrapped_lines = wrap_text(text, FONT_SIZE, self._textarea_rect.width - 20)
+    self._content_rect = rl.Rectangle(0, 0, self._textarea_rect.width - 20, len(self._wrapped_lines) * LINE_HEIGHT)
+    self._scroll_panel = GuiScrollPanel(show_vertical_scroll_bar=True)
+
+  def render(self):
+    scroll = self._scroll_panel.handle_scroll(self._textarea_rect, self._content_rect)
+    rl.begin_scissor_mode(int(self._textarea_rect.x), int(self._textarea_rect.y), int(self._textarea_rect.width), int(self._textarea_rect.height))
+    for i, line in enumerate(self._wrapped_lines):
+      position = rl.Vector2(self._textarea_rect.x + scroll.x, self._textarea_rect.y + scroll.y + i * LINE_HEIGHT)
+      if position.y + LINE_HEIGHT < self._textarea_rect.y or position.y > self._textarea_rect.y + self._textarea_rect.height:
+        continue
+      rl.draw_text_ex(gui_app.font(), line, position, FONT_SIZE, 0, rl.WHITE)
+    rl.end_scissor_mode()
+
+    button_bounds = rl.Rectangle(gui_app.width - MARGIN - BUTTON_SIZE.x, gui_app.height - MARGIN - BUTTON_SIZE.y, BUTTON_SIZE.x, BUTTON_SIZE.y)
+    ret = gui_button(button_bounds, "Reboot", button_style=ButtonStyle.TRANSPARENT)
+    if ret:
+      HARDWARE.reboot()
+    return ret
+
+
+def show_text_in_window(text: str):
+  gui_app.init_window("Text")
+  text_window = TextWindow(text)
+  for _ in gui_app.render():
+    text_window.render()
+
+
+if __name__ == "__main__":
+  show_text_in_window(DEMO_TEXT)