updates
This commit is contained in:
Joshua King
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#!/usr/bin/env python3
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"""Render the real LVGL pages with demo telemetry using ESPHome's headless SDL host."""
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import argparse
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import json
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from pathlib import Path
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import subprocess
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import tempfile
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from PIL import Image
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import yaml
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from generate import Dumper, HERE, Lambda, generate
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--output', type=Path, default=HERE / 'previews')
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args = parser.parse_args()
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printers = yaml.safe_load((HERE / 'printers.yaml').read_text())['printers']
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package = generate(printers)
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demo_values = {'progress': 67, 'nozzle': 218, 'nozzle_target': 220, 'bed': 60,
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'bed_target': 60, 'time_left': 1.75, 'layer': 134, 'total_layers': 200,
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'fan': 80, 'left_nozzle': 219, 'left_target': 220,
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'right_nozzle': 37, 'right_target': 0}
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demo_text = {'status': 'running', 'task': 'Workshop organizer - plate 2',
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'stage': 'printing', 'online': 'on', 'print_error': 'off', 'hms_error': 'off',
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'remaining_unit': 'h', 'nozzle_unit': '°C', 'bed_unit': '°C'}
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colors = ['#60DE9AFF', '#F4C96BFF', '#74A9E8FF', '#F8F4ECFF',
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'#DF8BBFFF', '#FA936BFF', '#8E79CAFF', '#4CC9C1FF']
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for printer in printers:
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prefix = printer['id'] + '_'
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for section in ('sensor', 'text_sensor'):
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for entry in package[section]:
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if not entry['id'].startswith(prefix):
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continue
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key = entry['id'][len(prefix):]
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if section == 'sensor':
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value = str(demo_values[key])
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else:
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if key.startswith('tray_'):
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_, index, attribute = key.split('_')
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text = {'type': 'PLA', 'color': colors[int(index) % len(colors)],
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'active': 'on' if index == '0' else 'off'}[attribute]
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else:
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text = demo_text[key]
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value = 'std::string(' + json.dumps(text, ensure_ascii=False) + ')'
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entry.clear()
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entry.update({'platform': 'template', 'id': prefix + key, 'internal': True,
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'lambda': Lambda('return ' + value + ';'), 'update_interval': '60s'})
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for script in package['script']:
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code = script['then'][0]['lambda']
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script['then'][0]['lambda'] = Lambda(code.replace(
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'id(ha_api).is_connected_with_state_subscription()', 'true'))
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args.output.mkdir(parents=True, exist_ok=True)
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with tempfile.TemporaryDirectory(prefix='bambu-lvgl-preview-') as work:
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root = Path(work)
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# Inject real LVGL pointer samples; test bubbling through cards/buttons
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# without a GUI window or a physical touchscreen.
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touch_header = root / 'preview_touch.h'
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touch_header.write_text('''#pragma once
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#include <lvgl.h>
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namespace bambu_preview {
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inline int x = 0, y = 0;
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inline bool pressed = false;
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inline void setup() {
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auto *input = lv_indev_create();
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lv_indev_set_type(input, LV_INDEV_TYPE_POINTER);
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lv_indev_set_display(input, lv_display_get_default());
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lv_indev_set_read_cb(input, [](lv_indev_t *, lv_indev_data_t *data) {
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data->point.x = x;
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data->point.y = y;
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data->state = pressed ? LV_INDEV_STATE_PRESSED : LV_INDEV_STATE_RELEASED;
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});
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}
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}
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''')
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steps = [{'component.update': entry['id']}
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for section in ('sensor', 'text_sensor') for entry in package[section]]
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steps += [{'delay': '1s'}]
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for printer in printers:
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steps += [{'lvgl.page.show': printer['id'] + '_page'},
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{'script.execute': printer['id'] + '_refresh'}, {'delay': '300ms'},
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{'snapshot.take': {'id': 'panel_display', 'filename': printer['id'] + '.bmp'}}]
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steps += [{'lvgl.page.show': printers[0]['id'] + '_page'}, {'delay': '250ms'},
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{'lambda': Lambda('bambu_preview::setup();')}]
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if len(printers) > 1:
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# First -> second -> first -> last -> first, then a swipe starting
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# on NEXT must advance exactly once even when released over PREV.
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gestures = [(650, 180, 180, printers[1]['id']),
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(180, 650, 180, printers[0]['id']),
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(180, 650, 180, printers[-1]['id']),
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(650, 180, 180, printers[0]['id']),
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(730, 60, 460, printers[1]['id'])]
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for start, end, y, expected in gestures:
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steps += [
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{'lambda': Lambda(f'bambu_preview::x = {start}; bambu_preview::y = {y}; bambu_preview::pressed = true;')},
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{'delay': '70ms'},
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{'lambda': Lambda(f'bambu_preview::x = {end};')}, {'delay': '70ms'},
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{'lambda': Lambda('bambu_preview::pressed = false;')}, {'delay': '350ms'},
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{'lambda': Lambda(f'if (!id({expected}_page).is_showing()) {{ ESP_LOGE("preview", "Swipe navigation failed"); exit(2); }}')},
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]
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steps += [{'lambda': Lambda('exit(0);')}]
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config = {'esphome': {'name': 'bambu-display-preview',
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'includes': [str(HERE / 'dashboard.h'), str(touch_header)],
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'on_boot': {'priority': -100, 'then': steps}},
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'host': {}, 'logger': {'level': 'WARN'},
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'display': [{'platform': 'sdl', 'id': 'panel_display', 'dimensions': '800x480',
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'headless': True, 'auto_clear_enabled': False, 'update_interval': 'never'}],
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'lvgl': {'id': 'dashboard', 'displays': ['panel_display'], 'buffer_size': '100%',
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'color_depth': 16, 'bg_color': 0x0D131B, 'text_color': 0xEDF3F7,
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'default_font': 'montserrat_18', **package.pop('lvgl')}, **package}
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filename = root / 'preview.yaml'
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filename.write_text(yaml.dump(config, Dumper=Dumper, sort_keys=False, allow_unicode=True))
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subprocess.run(['esphome', 'compile', str(filename)], check=True)
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binary = root / '.esphome/build/bambu-display-preview/.pioenvs/bambu-display-preview/program'
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subprocess.run([str(binary)], check=True, timeout=30, cwd=root)
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for printer in printers:
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bmp = root / '.esphome/snapshots/bambu-display-preview' / (printer['id'] + '.bmp')
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with Image.open(bmp) as image:
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image.save(args.output / (printer['id'] + '.png'))
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print(f'Saved {len(printers)} demo screenshots to {args.output}')
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print('Passed LVGL pointer swipe tests, including wraparound and button gesture consumption.')
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if __name__ == '__main__':
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main()
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