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Enable PNG palette when at least one of quality, colours, colors or dither is set (#2226)

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This commit is contained in:
Roman Malieiev
2020-05-28 23:21:33 +02:00
committed by GitHub
parent c76ae06fd1
commit a7b1185602
3 changed files with 34 additions and 31 deletions
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42
lib/output.js
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@@ -293,28 +293,30 @@ function png (options) {
}
if (is.defined(options.palette)) {
this._setBooleanOption('pngPalette', options.palette);
if (this.options.pngPalette) {
if (is.defined(options.quality)) {
if (is.integer(options.quality) && is.inRange(options.quality, 0, 100)) {
this.options.pngQuality = options.quality;
} else {
throw is.invalidParameterError('quality', 'integer between 0 and 100', options.quality);
}
} else if (is.defined(options.quality) || is.defined(options.colours || options.colors) || is.defined(options.dither)) {
this._setBooleanOption('pngPalette', true);
}
if (this.options.pngPalette) {
if (is.defined(options.quality)) {
if (is.integer(options.quality) && is.inRange(options.quality, 0, 100)) {
this.options.pngQuality = options.quality;
} else {
throw is.invalidParameterError('quality', 'integer between 0 and 100', options.quality);
}
const colours = options.colours || options.colors;
if (is.defined(colours)) {
if (is.integer(colours) && is.inRange(colours, 2, 256)) {
this.options.pngColours = colours;
} else {
throw is.invalidParameterError('colours', 'integer between 2 and 256', colours);
}
}
const colours = options.colours || options.colors;
if (is.defined(colours)) {
if (is.integer(colours) && is.inRange(colours, 2, 256)) {
this.options.pngColours = colours;
} else {
throw is.invalidParameterError('colours', 'integer between 2 and 256', colours);
}
if (is.defined(options.dither)) {
if (is.number(options.dither) && is.inRange(options.dither, 0, 1)) {
this.options.pngDither = options.dither;
} else {
throw is.invalidParameterError('dither', 'number between 0.0 and 1.0', options.dither);
}
}
if (is.defined(options.dither)) {
if (is.number(options.dither) && is.inRange(options.dither, 0, 1)) {
this.options.pngDither = options.dither;
} else {
throw is.invalidParameterError('dither', 'number between 0.0 and 1.0', options.dither);
}
}
}