Current File : //usr/share/gnome-shell/extensions/ubuntu-appindicators@ubuntu.com/pixmapsUtils.js
// This file is part of the AppIndicator/KStatusNotifierItem GNOME Shell extension
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
export function argbToRgba(src) {
const dest = new Uint8Array(src.length);
for (let j = 0; j < src.length; j += 4) {
const srcAlpha = src[j];
dest[j] = src[j + 1]; /* red */
dest[j + 1] = src[j + 2]; /* green */
dest[j + 2] = src[j + 3]; /* blue */
dest[j + 3] = srcAlpha; /* alpha */
}
return dest;
}
export function getBestPixmap(pixmapsVariant, preferredSize) {
if (!pixmapsVariant)
throw new TypeError('null pixmapsVariant');
const pixmapsVariantsArray = new Array(pixmapsVariant.n_children());
if (!pixmapsVariantsArray.length)
throw TypeError('Empty Icon found');
for (let i = 0; i < pixmapsVariantsArray.length; ++i)
pixmapsVariantsArray[i] = pixmapsVariant.get_child_value(i);
const pixmapsSizedArray = pixmapsVariantsArray.map((pixmapVariant, index) => ({
width: pixmapVariant.get_child_value(0).unpack(),
height: pixmapVariant.get_child_value(1).unpack(),
index,
}));
const sortedIconPixmapArray = pixmapsSizedArray.sort(
({width: widthA, height: heightA}, {width: widthB, height: heightB}) => {
const areaA = widthA * heightA;
const areaB = widthB * heightB;
return areaA - areaB;
});
// we prefer any pixmap that is equal or bigger than our requested size
const qualifiedIconPixmapArray = sortedIconPixmapArray.filter(({width, height}) =>
width >= preferredSize && height >= preferredSize);
const {width, height, index} = qualifiedIconPixmapArray.length > 0
? qualifiedIconPixmapArray[0] : sortedIconPixmapArray.pop();
const pixmapVariant = pixmapsVariantsArray[index].get_child_value(2);
const rowStride = width * 4; // hopefully this is correct
return {pixmapVariant, width, height, rowStride};
}
Mini Shell