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Merge pull request #490 from Brooooooklyn/fallback-text-metrics
fix: wrong text metrics if text contains chars not including in current font-family
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,107 +1,110 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="UTF-8" /> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | ||
| <script src="/node_modules/canvaskit-wasm/bin/canvaskit.js"></script> | ||
| <title>Canvas</title> | ||
| </head> | ||
|
|
||
| <body> | ||
| <style type="text/css"> | ||
| @font-face { | ||
| font-family: 'Iosevka Slab'; | ||
| src: url('/__test__/fonts/iosevka-slab-regular.ttf'); | ||
| } | ||
| <head> | ||
| <meta charset="UTF-8" /> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | ||
| <script src="/node_modules/canvaskit-wasm/bin/canvaskit.js"></script> | ||
| <title>Canvas</title> | ||
| </head> | ||
|
|
||
| body { | ||
| font-family: 'Iosevka Slab'; | ||
| } | ||
| <body> | ||
| <style type="text/css"> | ||
| @font-face { | ||
| font-family: 'Iosevka Slab'; | ||
| src: url('/__test__/fonts/iosevka-slab-regular.ttf'); | ||
| } | ||
|
|
||
| canvas { | ||
| margin-top: 100px; | ||
| } | ||
| </style> | ||
| <canvas width="1024" height="768" id="canvas"></canvas> | ||
| <canvas width="1024" height="768" id="canvas-text"></canvas> | ||
| <canvas width="512" height="512" id="regression"></canvas> | ||
| <canvas width="512" height="512" id="text"></canvas> | ||
| <img width="200" height="200" id="firefox" src="/__test__/fixtures/filter-combine-contrast-brightness.jpeg" /> | ||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('canvas') | ||
| /** | ||
| * @type {CanvasRenderingContext2D} | ||
| */ | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.fillStyle = 'yellow' | ||
| ctx.fillRect(0, 0, canvas.width, canvas.height) | ||
| ctx.strokeStyle = 'black' | ||
| ctx.lineWidth = 3 | ||
| ctx.font = '50px Iosevka Slab' | ||
| body { | ||
| font-family: 'Iosevka Slab'; | ||
| } | ||
|
|
||
| const baselines = ['top', 'hanging', 'middle', 'alphabetic', 'ideographic', 'bottom'] | ||
| canvas { | ||
| margin-top: 100px; | ||
| } | ||
| </style> | ||
| <canvas width="1024" height="768" id="canvas"></canvas> | ||
| <canvas width="1024" height="768" id="canvas-text"></canvas> | ||
| <canvas width="512" height="512" id="regression"></canvas> | ||
| <canvas width="512" height="512" id="text"></canvas> | ||
| <img width="200" height="200" id="firefox" src="/__test__/fixtures/filter-combine-contrast-brightness.jpeg" /> | ||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('canvas') | ||
| /** | ||
| * @type {CanvasRenderingContext2D} | ||
| */ | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.fillStyle = 'yellow' | ||
| ctx.fillRect(0, 0, canvas.width, canvas.height) | ||
| ctx.strokeStyle = 'black' | ||
| ctx.lineWidth = 3 | ||
| ctx.font = '50px Iosevka Slab' | ||
|
|
||
| baselines.forEach(function (baseline) { | ||
| ctx.textBaseline = baseline | ||
| const metrics = ctx.measureText('@napi-rs/canvas') | ||
| console.info(baseline, metrics) | ||
| }) | ||
| const metrics = ctx.measureText('@napi-rs/canvas') | ||
| console.info(metrics) | ||
| const baselines = ['top', 'hanging', 'middle', 'alphabetic', 'ideographic', 'bottom'] | ||
|
|
||
| ctx.strokeText('skr canvas', 50, 150) | ||
| ctx.strokeText('@napi-rs/canvas', 50, 300) | ||
| }, 300) | ||
| baselines.forEach(function (baseline) { | ||
| ctx.textBaseline = baseline | ||
| const metrics = ctx.measureText('@napi-rs/canvas') | ||
| console.info(baseline, metrics) | ||
| }) | ||
|
|
||
| setTimeout(() => { | ||
| const canvas = document.getElementById('canvas-text') | ||
| /** | ||
| * @type {CanvasRenderingContext2D} | ||
| */ | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.fillStyle = 'yellow' | ||
| ctx.fillRect(0, 0, canvas.width, canvas.height) | ||
| const baselines = ['top', 'hanging', 'middle', 'alphabetic', 'ideographic', 'bottom'] | ||
| ctx.font = '36px Iosevka Slab' | ||
| ctx.strokeStyle = 'red' | ||
| ctx.fillStyle = 'black' | ||
| ctx.strokeText('skr canvas', 50, 150) | ||
| ctx.strokeText('@napi-rs/canvas', 50, 300) | ||
| }, 300) | ||
|
|
||
| baselines.forEach(function (baseline, index) { | ||
| ctx.textBaseline = baseline | ||
| const y = 75 + index * 75 | ||
| ctx.beginPath() | ||
| ctx.moveTo(0, y + 0.5) | ||
| ctx.lineTo(550, y + 0.5) | ||
| ctx.stroke() | ||
| ctx.fillText('Abcdefghijklmnop (' + baseline + ')', 0, y) | ||
| }) | ||
| }, 300) | ||
| </script> | ||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('regression') | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.filter = 'contrast(175%) brightness(103%)' | ||
| const image = document.querySelector('#firefox') | ||
| ctx.drawImage(image, 0, 0) | ||
| }, 1000) | ||
| </script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('canvas-text') | ||
| /** | ||
| * @type {CanvasRenderingContext2D} | ||
| */ | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.fillStyle = 'yellow' | ||
| ctx.fillRect(0, 0, canvas.width, canvas.height) | ||
| const baselines = ['top', 'hanging', 'middle', 'alphabetic', 'ideographic', 'bottom'] | ||
| ctx.font = '50px Iosevka Slab' | ||
| ctx.fillStyle = 'black' | ||
|
|
||
| baselines.forEach(function (baseline, index) { | ||
| ctx.textBaseline = baseline | ||
| const y = 75 + index * 75 | ||
| ctx.beginPath() | ||
| ctx.moveTo(0, y + 0.5) | ||
| ctx.lineTo(550, y + 0.5) | ||
| ctx.stroke() | ||
| ctx.fillText('Abcdefghijklmnop (' + baseline + ')', 0, y) | ||
| }) | ||
| }, 300) | ||
| </script> | ||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('regression') | ||
| const ctx = canvas.getContext('2d') | ||
| ctx.filter = 'contrast(175%) brightness(103%)' | ||
| const image = document.querySelector('#firefox') | ||
| ctx.drawImage(image, 0, 0) | ||
| }, 1000) | ||
| </script> | ||
|
|
||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('text') | ||
| const ctx = canvas.getContext('2d') | ||
| for (const align of ['center', 'end', 'left', 'right', 'start']) { | ||
| const x = canvas.width / 2 | ||
| ctx.strokeStyle = 'black' | ||
| ctx.moveTo(x, 0) | ||
| ctx.lineTo(x, canvas.height) | ||
| ctx.stroke() | ||
| ctx.textAlign = align | ||
| ctx.font = '16px Iosevka Slab' | ||
| ctx.fillText('Hello Canvas', x, 200) | ||
| } | ||
| }, 1000) | ||
| </script> | ||
| </body> | ||
|
|
||
| <script> | ||
| setTimeout(() => { | ||
| const canvas = document.getElementById('text') | ||
| const ctx = canvas.getContext('2d') | ||
| for (const align of ['center', 'end', 'left', 'right', 'start']) { | ||
| const x = canvas.width / 2 | ||
| ctx.strokeStyle = 'black' | ||
| ctx.moveTo(x, 0) | ||
| ctx.lineTo(x, canvas.height) | ||
| ctx.stroke() | ||
| ctx.textAlign = align | ||
| ctx.font = '16px Iosevka Slab' | ||
| ctx.fillText('Hello Canvas', x, 200) | ||
| } | ||
| }, 1000) | ||
| </script> | ||
| </body> | ||
| </html> | ||
| </html> |
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