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Ensure pdfBackground constructor property is used #4207

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Slightly refactor the way background colours are set
This commit is contained in:
Lovell Fuller
2025-04-09 22:21:14 +01:00
parent a642767329
commit 5b5dfbad77
4 changed files with 31 additions and 35 deletions
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33
lib/colour.js
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@@ -134,6 +134,26 @@ function toColorspace (colorspace) {
return this.toColourspace(colorspace);
}
/**
* Create a RGBA colour array from a given value.
* @private
* @param {string|Object} value
* @throws {Error} Invalid value
*/
function _getBackgroundColourOption (value) {
if (is.object(value) || is.string(value)) {
const colour = color(value);
return [
colour.red(),
colour.green(),
colour.blue(),
Math.round(colour.alpha() * 255)
];
} else {
throw is.invalidParameterError('background', 'object or string', value);
}
}
/**
* Update a colour attribute of the this.options Object.
* @private
@@ -143,17 +163,7 @@ function toColorspace (colorspace) {
*/
function _setBackgroundColourOption (key, value) {
if (is.defined(value)) {
if (is.object(value) || is.string(value)) {
const colour = color(value);
this.options[key] = [
colour.red(),
colour.green(),
colour.blue(),
Math.round(colour.alpha() * 255)
];
} else {
throw is.invalidParameterError('background', 'object or string', value);
}
this.options[key] = _getBackgroundColourOption(value);
}
}
@@ -173,6 +183,7 @@ module.exports = function (Sharp) {
toColourspace,
toColorspace,
// Private
_getBackgroundColourOption,
_setBackgroundColourOption
});
// Class attributes