| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/tracing/ui/annotations/annotation_view.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.ui.annotations', function() { |
| /** |
| * A view that draws a vertical line on the timeline at a specific timestamp. |
| * @extends {AnnotationView} |
| * @constructor |
| */ |
| function XMarkerAnnotationView(viewport, annotation) { |
| this.viewport_ = viewport; |
| this.annotation_ = annotation; |
| } |
| |
| XMarkerAnnotationView.prototype = { |
| __proto__: tr.ui.annotations.AnnotationView.prototype, |
| |
| draw: function(ctx) { |
| var dt = this.viewport_.currentDisplayTransform; |
| var viewX = dt.xWorldToView(this.annotation_.timestamp); |
| |
| ctx.beginPath(); |
| tr.ui.b.drawLine(ctx, viewX, 0, viewX, ctx.canvas.height); |
| ctx.strokeStyle = this.annotation_.strokeStyle; |
| ctx.stroke(); |
| } |
| }; |
| |
| return { |
| XMarkerAnnotationView: XMarkerAnnotationView |
| }; |
| }); |
| </script> |
