207 lines
6.8 KiB
Python
207 lines
6.8 KiB
Python
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""Bottom nav: 0909 enlarged icons + original design text strips, fixed baseline."""
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from __future__ import annotations
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import re
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import subprocess
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from io import BytesIO
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from pathlib import Path
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from PIL import Image
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PROJ = Path(__file__).resolve().parents[1]
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ROOT = PROJ.parent.parent
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SRC_DIR = next(
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p
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for p in (ROOT / "Doc" / "UI" / "K1标准界面图 0904").iterdir()
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if p.is_dir() and "0909" in p.name
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)
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ASSETS = PROJ / "tools" / "assets_0902" / "03_底部图标"
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DOC_ASSETS = ROOT / "Doc" / "UI" / "k1_ui_png 0902" / "03_底部图标"
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OUT_C = PROJ / "device" / "LCD_ILI9341" / "Drv_ILI9341_Lcd_Image_UI0902.c"
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OUT_H = PROJ / "device" / "LCD_ILI9341" / "Drv_ILI9341_Lcd_Image_UI0902.h"
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ROW_BG = (36, 43, 58)
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CANVAS_H = 32
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ICON_AREA_H = 20
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TEXT_TOP = 22 # all labels share this top row
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# png_idx, src_glyph_num, symbol_base, width
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MAPPING = [
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(10, 21, "gImage_UI0902_TabSetting_Sel", 40),
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(11, 23, "gImage_UI0902_TabSetting_Not", 40),
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(12, 25, "gImage_UI0902_TabMixer_Sel", 40),
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(13, 27, "gImage_UI0902_TabMixer_Not", 22),
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(14, 20, "gImage_UI0902_TabMode_Sel", 40),
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(15, 22, "gImage_UI0902_TabMode_Not", 40),
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(16, 24, "gImage_UI0902_TabBack_Sel", 40),
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(17, 26, "gImage_UI0902_TabBack_Not", 22),
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]
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def git_png(rel: str) -> Image.Image:
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data = subprocess.check_output(["git", "show", f"HEAD:{rel}"], cwd=PROJ)
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return Image.open(BytesIO(data)).convert("RGBA")
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def clear_bg(im: Image.Image) -> Image.Image:
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im = im.convert("RGBA")
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px = im.load()
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for y in range(im.height):
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for x in range(im.width):
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r, g, b, a = px[x, y]
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if a < 40 or (r < 12 and g < 12 and b < 12):
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px[x, y] = (0, 0, 0, 0)
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return im
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def row_has_ink(im: Image.Image, y: int) -> bool:
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w = im.width
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for x in range(w):
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r, g, b, a = im.getpixel((x, y))
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if a > 40 and (r + g + b) > 40:
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return True
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return False
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def extract_text(im: Image.Image) -> Image.Image:
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"""Crop label band below the icon/gap from original composite."""
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im = clear_bg(im)
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h = im.height
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# find last empty gap row in upper half, then text starts after
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empty = [y for y in range(h) if not row_has_ink(im, y)]
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# text region: from first non-empty after mid-gap
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mid_empties = [y for y in empty if 10 <= y <= 20]
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if mid_empties:
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text_y0 = mid_empties[-1] + 1
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else:
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text_y0 = h // 2 + 2
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while text_y0 < h and not row_has_ink(im, text_y0):
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text_y0 += 1
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text_y1 = h - 1
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while text_y1 > text_y0 and not row_has_ink(im, text_y1):
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text_y1 -= 1
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band = im.crop((0, text_y0, im.width, text_y1 + 1))
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# trim horizontal transparent
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bbox = band.getbbox()
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if bbox:
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band = band.crop(bbox)
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return clear_bg(band)
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def fit_icon(im: Image.Image) -> Image.Image:
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im = clear_bg(im)
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nw, nh = im.size
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if nw > 24 or nh > ICON_AREA_H:
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scale = min(24 / nw, ICON_AREA_H / nh)
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nw = max(1, int(round(nw * scale)))
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nh = max(1, int(round(nh * scale)))
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im = clear_bg(im.resize((nw, nh), Image.Resampling.NEAREST))
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nw, nh = im.size
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return im
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def rgba_to_rgb565(im: Image.Image) -> tuple[bytes, int, int]:
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im = im.convert("RGBA")
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px = im.load()
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w, h = im.size
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out = bytearray(w * h * 2)
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i = 0
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for y in range(h):
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for x in range(w):
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r, g, b, a = px[x, y]
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if a < 40 or (r < 12 and g < 12 and b < 12):
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out[i] = out[i + 1] = 0
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elif (
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abs(r - ROW_BG[0]) <= 18
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and abs(g - ROW_BG[1]) <= 18
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and abs(b - ROW_BG[2]) <= 18
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):
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out[i] = out[i + 1] = 0
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else:
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r = (r * a) // 255
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g = (g * a) // 255
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b = (b * a) // 255
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v = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3)
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out[i] = (v >> 8) & 0xFF
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out[i + 1] = v & 0xFF
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i += 2
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return bytes(out), w, h
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def emit_c_array(name: str, data: bytes, w: int, h: int) -> str:
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lines = [f"const unsigned char {name}[{len(data)}] = {{ /* {w}x{h} RGB565 BE */"]
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for i in range(0, len(data), 16):
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lines.append(",".join(f"0x{b:02X}" for b in data[i : i + 16]) + ",")
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lines.append("};")
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lines.append("")
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return "\n".join(lines)
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def replace_c_array(text: str, old_name: str, new_block: str) -> str:
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pat = re.compile(
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rf"const unsigned char {re.escape(old_name)}\[\d+\] = \{{.*?\n\}};\n?",
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re.S,
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)
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if not pat.search(text):
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raise SystemExit(f"array not found: {old_name}")
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return pat.sub(new_block, text, count=1)
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def replace_h_decl(text: str, old_name: str, new_name: str, nbytes: int) -> str:
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pat = re.compile(rf"extern const unsigned char {re.escape(old_name)}\[\d+\];")
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if not pat.search(text):
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raise SystemExit(f"decl not found: {old_name}")
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return pat.sub(
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f"extern const unsigned char {new_name}[{nbytes}];", text, count=1
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)
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def main() -> None:
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by_num = {int(f.stem.rsplit("-", 1)[-1]): f for f in SRC_DIR.glob("*.png")}
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c_text = OUT_C.read_text(encoding="utf-8")
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h_text = OUT_H.read_text(encoding="utf-8")
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sizes: dict[int, tuple[int, int]] = {}
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for out_idx, src_num, base, width in MAPPING:
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icon = fit_icon(Image.open(by_num[src_num]))
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old = git_png(f"tools/assets_0902/03_底部图标/底部图标-{out_idx}.png")
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text = extract_text(old)
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# widen canvas if text wider
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cw = max(width, icon.width, text.width)
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canvas = Image.new("RGBA", (cw, CANVAS_H), (0, 0, 0, 0))
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iy = (ICON_AREA_H - icon.height) // 2
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canvas.paste(icon, ((cw - icon.width) // 2, max(0, iy)), icon)
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# pin text BOTTOM to same row so labels sit on one baseline
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text_bottom = CANVAS_H - 1
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ty = text_bottom - text.height + 1
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if ty < TEXT_TOP:
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ty = TEXT_TOP
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canvas.paste(text, ((cw - text.width) // 2, ty), text)
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out = ASSETS / f"底部图标-{out_idx}.png"
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canvas.save(out)
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if DOC_ASSETS.exists():
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canvas.save(DOC_ASSETS / f"底部图标-{out_idx}.png")
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data, w, h = rgba_to_rgb565(canvas)
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new_name = f"{base}_{w}x{h}"
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m = re.search(rf"{re.escape(base)}_\d+x\d+", c_text)
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if not m:
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raise SystemExit(f"cannot locate {base}")
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old_name = m.group(0)
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c_text = replace_c_array(c_text, old_name, emit_c_array(new_name, data, w, h))
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h_text = replace_h_decl(h_text, old_name, new_name, len(data))
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sizes[out_idx] = (w, h)
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print(f"{out_idx}: {w}x{h} text={text.size} -> {new_name}")
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OUT_C.write_text(c_text, encoding="utf-8")
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OUT_H.write_text(h_text, encoding="utf-8")
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print("SIZES", sizes)
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if __name__ == "__main__":
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main()
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