# Copyright 2024 Google LLC # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import json import argparse, os, sys import shutil import watch_templates as temps class WatchGenerator: def __init__(self): self._static_defs = [] self._init_func = [] self._update_func = [] self.watch_name = None self.version = None self.company_name = None self.visible_name = None def h_file_name(self): return 'pebble_gen_header.h' def c_file_name(self): return self.watch_name + '.c' def defs_file_name(self): return 'pebble_gen_defs.h' def generate_c_code(self): fs = temps.FileScope res_strings = [] res_strings.append(fs.includes.format(header_name=self.h_file_name())) res_strings.append('\n'.join(self._static_defs)) res_strings.append(fs.update_function.format(watch_name=self.watch_name, update_content='\n'.join(self._update_func))) res_strings.append(fs.init_function.format(watch_name=self.watch_name, init_content='\n'.join(self._init_func))) return '\n'.join(res_strings) def generate_h_code(self): return temps.FileScope.header.format(watch_name=self.watch_name, app_version=self.version) def generate_defs_file(self): return temps.FileScope.defs_file.format(watch_name=self.watch_name, visible_name=self.visible_name, company_name=self.company_name) def load_config(self, conf): self.watch_name = conf["name"] self.version = conf["friendlyVersion"] self.company_name = conf["company-name"] self.visible_name = conf["visible-name"] for elem in conf["elements"]: t = elem["type"] if t == "static-image": self.parse_static_image(elem) elif t == "time-text": self.parse_time_text(elem) elif t == "hand": self.parse_hand(elem) else: raise "Unknown element type: " + t def parse_static_image(self, elem): si = temps.StaticImage self._static_defs.append(si.static_defs.format(name=elem["name"])) self._init_func.append(si.init_lines.format(res_def_name=elem["image"]["def-name"], name=elem["name"])) def parse_date_format(self, fmt_list): ### parses a json object list into a c strftime format string and required buffer size buffer_size = 1 fmt_string = "" for fmt in fmt_list: # TODO: implement the other operations for strftime t = fmt["type"] if t == "string": fmt_string += fmt.val buffer_size += len(fmt.val) elif t == "day-name-abbreviated": fmt_string += "%a" buffer_size += 4 elif t == "day-of-month": fmt_string += "%d" buffer_size += 2 else: raise "Unknown date format type: " + t return buffer_size, fmt_string def parse_color(self, color_string): if color_string == "black": return "GColorBlack" elif color_string == "white": return "GColorWhite" elif color_string == "transparent": return "GColorTrans" else: raise "Unknown color: " + color_string def parse_font_info(self, font_obj): f = font_obj["font"] if f == "gothic": bold = "modifiers" in font_obj and "bold" in font_obj["modifiers"] size = font_obj["size"] return "graphics_text_get_system_font({size}, GFontStyle{style})".format(size=size, style=("Bold" if bold else "Regular")) else: raise "Unknown font: " + f def parse_time_text(self, elem): tt = temps.TimeText buffer_len, date_fmt = self.parse_date_format(elem["format"]) color = self.parse_color(elem["color"]) bg_color = self.parse_color(elem["background-color"]) font_func = self.parse_font_info(elem["font"]) self._static_defs.append(tt.static_defs.format(name=elem["name"], buffer_length=buffer_len)) self._init_func.append(tt.init_lines.format(name=elem["name"], x=elem["position"][0], y=elem["position"][1], w=elem["size"][0], h=elem["size"][1], color=color, background_color=bg_color, font_func=font_func)) self._update_func.append(tt.update_lines.format(name=elem["name"], date_format_string=date_fmt)) def parse_time_element(self, te): if te == "hour": return "t.tm_hour / 12" elif te == "hour24": return "t.tm_hour / 24" elif te == "minute": return "t.tm_min / 60" elif te == "second": return "t.tm_sec / 60" else: raise "Unknown time element: " + te def parse_hand(self, elem): h = temps.Hand ratio = self.parse_time_element(elem["time-element"]) self._static_defs.append(h.static_defs.format(name=elem["name"])) self._init_func.append(h.init_lines.format(res_def_name=elem["trans-image"]["def-name"], name=elem["name"], pivot_x=elem["pivot"][0], pivot_y=elem["pivot"][1])) self._update_func.append(h.update_lines.format(name=elem["name"], angle_ratio=ratio)) def generate(watch_config, src_output_dir): with open(watch_config, 'r') as conf: config_data = json.loads(conf.read()) gen = WatchGenerator() gen.load_config(config_data) if not os.path.isdir(src_output_dir): os.makedirs(src_output_dir) with open(os.path.join(src_output_dir, gen.c_file_name()), 'w') as output: output.write(gen.generate_c_code()) with open(os.path.join(src_output_dir, gen.h_file_name()), 'w') as output: output.write(gen.generate_h_code()) with open(os.path.join(src_output_dir, gen.defs_file_name()), 'w') as output: output.write(gen.generate_defs_file()) def main(): parser = argparse.ArgumentParser() parser.add_argument('watch_config') parser.add_argument('src_output_dir') args = parser.parse_args() generate(args.watch_config, args.src_output_dir) shutil.copy("watch_boilerplate.template.c", os.path.join(args.src_output_dir, "watch_boilerplate.template.c")) if __name__ == "__main__": main()