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2025-01-04 00:34:03 +01:00
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commit 0ca14bbc19
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import { TEXT_GRADIENT } from "@pixi/text";
function generateFillStyle(canvas, context, style, resolution, lines, metrics) {
const fillStyle = style.fill;
if (Array.isArray(fillStyle)) {
if (fillStyle.length === 1)
return fillStyle[0];
} else
return fillStyle;
let gradient;
const dropShadowCorrection = style.dropShadow ? style.dropShadowDistance : 0, padding = style.padding || 0, width = canvas.width / resolution - dropShadowCorrection - padding * 2, height = canvas.height / resolution - dropShadowCorrection - padding * 2, fill = fillStyle.slice(), fillGradientStops = style.fillGradientStops.slice();
if (!fillGradientStops.length) {
const lengthPlus1 = fill.length + 1;
for (let i = 1; i < lengthPlus1; ++i)
fillGradientStops.push(i / lengthPlus1);
}
if (fill.unshift(fillStyle[0]), fillGradientStops.unshift(0), fill.push(fillStyle[fillStyle.length - 1]), fillGradientStops.push(1), style.fillGradientType === TEXT_GRADIENT.LINEAR_VERTICAL) {
gradient = context.createLinearGradient(width / 2, padding, width / 2, height + padding);
let lastIterationStop = 0;
const gradStopLineHeight = (metrics.fontProperties.fontSize + style.strokeThickness) / height;
for (let i = 0; i < lines.length; i++) {
const thisLineTop = metrics.lineHeight * i;
for (let j = 0; j < fill.length; j++) {
let lineStop = 0;
typeof fillGradientStops[j] == "number" ? lineStop = fillGradientStops[j] : lineStop = j / fill.length;
const globalStop = thisLineTop / height + lineStop * gradStopLineHeight;
let clampedStop = Math.max(lastIterationStop, globalStop);
clampedStop = Math.min(clampedStop, 1), gradient.addColorStop(clampedStop, fill[j]), lastIterationStop = clampedStop;
}
}
} else {
gradient = context.createLinearGradient(padding, height / 2, width + padding, height / 2);
const totalIterations = fill.length + 1;
let currentIteration = 1;
for (let i = 0; i < fill.length; i++) {
let stop;
typeof fillGradientStops[i] == "number" ? stop = fillGradientStops[i] : stop = currentIteration / totalIterations, gradient.addColorStop(stop, fill[i]), currentIteration++;
}
}
return gradient;
}
export {
generateFillStyle
};
//# sourceMappingURL=generateFillStyle.mjs.map