relikd/icnsutil
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fix icns type sort order + add html support for png+jp2

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relikd
2021-09-26 23:00:32 +02:00
parent 6c8e832cc3
commit ffdb51e743
4 changed files with 58 additions and 22 deletions
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67
html/script.js
View File

@@ -45,16 +45,20 @@ function is_it32(ext, itype, first4b) {
return false;
}
function get_length(hex, i) {
return Number('0x'+hex.substring(i, i + 8));
}
function as_str(hex, i_start, i_end) {
var str = '';
for (var u = i_start; u < i_end; u += 2)
str += String.fromCharCode(parseInt(hex.substr(u, 2), 16));
return str;
}
function* parse_file(hex_str) {
function get_length(hex, i) { return Number('0x'+hex.substring(i, i + 8)); }
function get_str(hex, i, len=8) {
var str = '';
for (var u = i; u < i + len; u += 2)
str += String.fromCharCode(parseInt(hex.substr(u, 2), 16));
return str;
}
function get_media_ext(itype, idx, len) {
let ext = determine_file_ext(get_str(hex_str, idx, 16));
let ext = determine_file_ext(as_str(hex_str, idx, idx + 16));
if (ext || !itype)
return [ext, idx, idx + len];
return [icns_type(itype), idx, idx + len];
@@ -67,12 +71,12 @@ function* parse_file(hex_str) {
yield ['icns', i, num, null];
i += 8 * 2;
while (i < hex_str.length) {
let head = get_str(hex_str, i);
let head = as_str(hex_str, i, i + 8);
num = get_length(hex_str, i + 8);
yield [head, i, num, get_media_ext(head, i + 16, num * 2 - 16)];
i += num * 2;
}
} else if (ext[0] == 'argb' || ext[0] == null) {
} else {
yield [null, 0, hex_str.length, ext];
}
}
@@ -225,13 +229,49 @@ function inspect_into(sender, dest) {
}
function put_images_into(sender, dest) {
function get_image_size(data, ext, i) {
if (ext == 'png') {
let w = get_length(data, i + 16 * 2);
let h = get_length(data, i + 20 * 2);
return [w, h];
}
if (ext == 'jp2') {
if (data.substring(i, i + 8).toUpperCase() == 'FF4FFF51') {
let w = get_length(data, i + 8 * 2);
let h = get_length(data, i + 12 * 2);
return [w, h];
}
let len_ftype = get_length(data, i + 12 * 2);
// file header + type box + header box (super box) + image header box
let offset = 12 + len_ftype + 8 + 8;
let h = get_length(data, i + offset * 2);
let w = get_length(data, i + offset * 2 + 8);
return [w, h];
}
}
function append_img_div(head, typ, w, h) {
let div = document.createElement('div');
var desc = typ || '?';
if (w) { desc += ': ' + w + 'x' + h; }
div.innerHTML = `<h3>${head || ''}</h3><p>${desc}</p>`;
output.appendChild(div);
return div;
}
let src = sender.value.replace(/\s/g, '');
let output = document.getElementById(dest);
output.innerHTML = '';
for (let [head, , , ext] of parse_file(src)) {
if (!ext) continue;
if (['argb', 'rgb', 'mask', 'iconmask', 'icon1b', null].indexOf(ext[0]) == -1)
if (ext[0] == 'png' || ext[0] == 'jp2') {
let [w, h] = get_image_size(src, ext[0], ext[1]);
let img = append_img_div(head, ext[0], w, h);
img.innerHTML += `<img src="data:image/${ext[0]};base64,${btoa(as_str(src, ext[1], ext[2]))}" />`;
continue;
}
if (['argb', 'rgb', 'mask', 'iconmask', 'icon1b', null].indexOf(ext[0]) == -1) {
append_img_div(head, ext[0]).innerHTML += `<p>${(ext[2]-ext[1])/2} Bytes</p>`;
continue;
}
let num_arr = num_arr_from_hex(src.substring(ext[1], ext[2]));
let ch;
@@ -249,9 +289,6 @@ function put_images_into(sender, dest) {
ch = 3; data = expand_rgb(it32 ? num_arr.slice(4) : num_arr);
}
let [img, w] = make_image(data, ch);
let container = document.createElement('div');
container.innerHTML = `<h3>${head || ''}</h3><p>${w}x${w}</p>`
container.appendChild(img);
output.appendChild(container);
append_img_div(head, ext[0] || 'rgb', w, w).appendChild(img);
}
}

5
html/style.css
View File

@@ -17,15 +17,14 @@ body {margin: 2em; font-family: sans-serif;}
white-space: nowrap;
}
/* image viewer */
#images {margin-top: 1em;}
#images>div {
width: max-content;
display: inline-block;
padding: 0 10px;
margin-right: 10px;
margin: 15px 10px 15px 0;
vertical-align: top;
border: .5px solid gray;
}
#images>div>h3 {margin: 7px 0 0;}
#images>div>p {font-size: 0.8em; margin: 0 0 7px; color: gray;}
#images>div>canvas {border: .5px solid gray;}
#images>div>canvas, #images>div>img {border: .5px solid gray;}

4
icnsutil/IcnsFile.py
View File

@@ -33,7 +33,7 @@ class IcnsFile:
# Check whether stored type is an expected file format
if not (iType.is_type(ext) if ext else iType.is_binary()):
yield 'Unexpected type for key {}: {} != {}'.format(
key, ext or 'binary', list(iType.types))
key, ext or 'binary', iType.types)
if ext in ['png', 'jp2', 'icns', 'plist']:
continue
@@ -102,7 +102,7 @@ class IcnsFile:
try:
iType = IcnsType.get(key)
if not ext:
ext = list(iType.types)[-1]
ext = iType.types[-1]
desc = iType.filename(size_only=True)
txt += f', {ext or "binary"}: {desc}\n'
except NotImplementedError:

4
icnsutil/IcnsType.py
View File

@@ -22,7 +22,7 @@ class Media:
def __init__(self, key, types, size=None, *,
ch=None, bits=None, os=None, desc=''):
self.key = key
self.types = frozenset(types if type(types) == list else [types])
self.types = types if type(types) == list else [types]
self.size = (size, size) if type(size) == int else size
self.availability = os
self.desc = desc
@@ -104,7 +104,7 @@ class Media:
def __repr__(self):
return '<{}: {}, {}.{}>'.format(type(self).__name__, self.key,
self.filename(), list(self.types)[0])
self.filename(), self.types[0])
def __str__(self):
T = ''