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| author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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| committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
| commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
| tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/ja/web/api/canvasrenderingcontext2d/measuretext | |
| parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
| download | translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.gz translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.bz2 translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.zip | |
initial commit
Diffstat (limited to 'files/ja/web/api/canvasrenderingcontext2d/measuretext')
| -rw-r--r-- | files/ja/web/api/canvasrenderingcontext2d/measuretext/index.html | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/files/ja/web/api/canvasrenderingcontext2d/measuretext/index.html b/files/ja/web/api/canvasrenderingcontext2d/measuretext/index.html new file mode 100644 index 0000000000..0eb851be48 --- /dev/null +++ b/files/ja/web/api/canvasrenderingcontext2d/measuretext/index.html @@ -0,0 +1,76 @@ +--- +title: CanvasRenderingContext2D.measureText() +slug: Web/API/CanvasRenderingContext2D/measureText +tags: + - API + - Canvas + - CanvasRenderingContext2D + - Method + - Reference + - Référence(2) +translation_of: Web/API/CanvasRenderingContext2D/measureText +--- +<div>{{APIRef}}</div> + +<p><code><strong>CanvasRenderingContext2D.measureText()</strong></code> メソッドは、測定したテキストの情報 (例えば幅など) を持つ {{domxref("TextMetrics")}} オブジェクトを返します。</p> + +<h2 id="Syntax" name="Syntax">構文</h2> + +<pre class="syntaxbox">TextMetrics <var><em>ctx</em></var>.measureText(text);</pre> + +<h3 id="引数">引数</h3> + +<dl> + <dt>text</dt> + <dd>測定する文字列。</dd> +</dl> + +<h3 id="戻り値">戻り値</h3> + +<p>{{domxref("TextMetrics")}} オブジェクト。</p> + +<h2 id="例">例</h2> + +<p>以下の {{HTMLElement("canvas")}} 要素があるとします:</p> + +<pre class="brush: html"><canvas id="canvas"></canvas> +</pre> + +<p>以下のコードを使用して {{domxref("TextMetrics")}} オブジェクトを得ることができます:</p> + +<pre class="brush: js">var canvas = document.getElementById('canvas'); +var ctx = canvas.getContext('2d'); + +var text = ctx.measureText("foo"); // TextMetrics オブジェクト +text.width; // 16; +</pre> + +<h2 id="仕様">仕様</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">仕様書</th> + <th scope="col">策定状況</th> + <th scope="col">コメント</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-measuretext", "CanvasRenderingContext2D.measureText")}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="ブラウザ実装状況">ブラウザ実装状況</h2> + + + +<p>{{Compat("api.CanvasRenderingContext2D.measureText")}}</p> + +<h2 id="関連情報">関連情報</h2> + +<ul> + <li>このメソッドを定義するインターフェイスである {{domxref("CanvasRenderingContext2D")}}</li> + <li>{{domxref("TextMetrics")}}</li> +</ul> |
