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Set maximum width to stroke and fill text when invoked to draw labels #859

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Set maximum width to stroke and fill text when invoked to draw labels #859

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12 changes: 6 additions & 6 deletions src/helpers/helpers.canvas.js
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Original file line number Diff line number Diff line change
Expand Up @@ -144,9 +144,9 @@ export function drawLabel(ctx, rect, options) {
ctx.textBaseline = 'middle';
ctx.textAlign = options.textAlign;
if (setTextStrokeStyle(ctx, options)) {
applyLabelDecoration(ctx, {x, y}, labels, fonts);
applyLabelDecoration(ctx, {x, y, maxWidth: rect.width}, labels, fonts);
}
applyLabelContent(ctx, {x, y}, labels, {fonts, colors});
applyLabelContent(ctx, {x, y, maxWidth: rect.width}, labels, {fonts, colors});
ctx.restore();
}

Expand Down Expand Up @@ -297,20 +297,20 @@ function calculateLabelSize(ctx, lines, fonts, strokeWidth) {
return {width, height};
}

function applyLabelDecoration(ctx, {x, y}, labels, fonts) {
function applyLabelDecoration(ctx, {x, y, maxWidth}, labels, fonts) {
ctx.beginPath();
let lhs = 0;
labels.forEach(function(l, i) {
const f = fonts[Math.min(i, fonts.length - 1)];
const lh = f.lineHeight;
ctx.font = f.string;
ctx.strokeText(l, x, y + lh / 2 + lhs);
ctx.strokeText(l, x, y + lh / 2 + lhs, maxWidth);
lhs += lh;
});
ctx.stroke();
}

function applyLabelContent(ctx, {x, y}, labels, {fonts, colors}) {
function applyLabelContent(ctx, {x, y, maxWidth}, labels, {fonts, colors}) {
let lhs = 0;
labels.forEach(function(l, i) {
const c = colors[Math.min(i, colors.length - 1)];
Expand All @@ -319,7 +319,7 @@ function applyLabelContent(ctx, {x, y}, labels, {fonts, colors}) {
ctx.beginPath();
ctx.font = f.string;
ctx.fillStyle = c;
ctx.fillText(l, x, y + lh / 2 + lhs);
ctx.fillText(l, x, y + lh / 2 + lhs, maxWidth);
lhs += lh;
ctx.fill();
});
Expand Down