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build_emoji: Automatically calculate sprite dimensions. 

Instead of using a hardcoded value for spritesheet dimensions,
automatically calculate it using `emoji_data`. This will free
us from updating it only emoji datasource update as well as
allow us to add google blob emojiset.
This commit is contained in:
Harshit Bansal 2018-08-26 13:01:53 +00:00 committed by Tim Abbott
parent dbc3774c2f
commit f5454dff51
1 changed files with 16 additions and 3 deletions
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19
tools/setup/emoji/build_emoji
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@ -105,7 +105,20 @@ def get_success_stamp() -> str:
def generate_sprite_css_files(cache_path: str,
emoji_data: List[Dict[str, Any]],
emojiset: str) -> None:
# Spritesheet CSS generation code.
def get_max_val(field: str, emoji_data: List[Dict[str, Any]]) -> int:
max_val = 0
for emoji_dict in emoji_data:
max_val = max(max_val, emoji_dict[field])
if 'skin_variations' in emoji_dict:
for skin_tone, img_info in emoji_dict['skin_variations'].items():
max_val = max(max_val, img_info[field])
return max_val
# Spritesheet CSS generation code. Spritesheets are squared using
# padding, so we have to take only the maximum of two dimensions.
nrows = get_max_val('sheet_x', emoji_data)
ncols = get_max_val('sheet_y', emoji_data)
max_dim = max(nrows, ncols)
emoji_positions = ""
for emoji in emoji_data:
if emoji["has_img_google"]:
@ -116,8 +129,8 @@ def generate_sprite_css_files(cache_path: str,
# those google emoji (in case anyone used them).
emoji_positions += EMOJI_POS_INFO_TEMPLATE % {
'codepoint': get_emoji_code(emoji),
'pos_x': (emoji["sheet_x"] * 100) / 51,
'pos_y': (emoji["sheet_y"] * 100) / 51,
'pos_x': (emoji["sheet_x"] * 100) / max_dim,
'pos_y': (emoji["sheet_y"] * 100) / max_dim,
}
SPRITE_CSS_PATH = os.path.join(cache_path, '%s-sprite.css' % (emojiset,))