1 files changed, 0 insertions, 283 deletions
diff --git a/chromium/third_party/trace-viewer/src/tracing/draw_helpers.js b/chromium/third_party/trace-viewer/src/tracing/draw_helpers.js
deleted file mode 100644
index 771e4def00a..00000000000
--- a/chromium/third_party/trace-viewer/src/tracing/draw_helpers.js
+++ /dev/null
@@ -1,283 +0,0 @@
-// Copyright (c) 2013 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.
-
-'use strict';
-
-base.require('base.sorted_array_utils');
-base.require('tracing.color_scheme');
-base.require('tracing.elided_cache');
-
-/**
- * @fileoverview Provides various helper methods for drawing to a provided
- * canvas.
- */
-base.exportTo('tracing', function() {
-  var elidedTitleCache = new tracing.ElidedTitleCache();
-  var palette = tracing.getColorPalette();
-  var EventPresenter = tracing.EventPresenter;
-
-  /**
-   * Should we elide text on trace labels?
-   * Without eliding, text that is too wide isn't drawn at all.
-   * Disable if you feel this causes a performance problem.
-   * This is a default value that can be overridden in tracks for testing.
-   * @const
-   */
-  var SHOULD_ELIDE_TEXT = true;
-
-  /**
-   * Draw the define line into |ctx|.
-   *
-   * @param {Context} ctx The context to draw into.
-   * @param {float} x1 The start x position of the line.
-   * @param {float} y1 The start y position of the line.
-   * @param {float} x2 The end x position of the line.
-   * @param {float} y2 The end y position of the line.
-   */
-  function drawLine(ctx, x1, y1, x2, y2) {
-    ctx.moveTo(x1, y1);
-    ctx.lineTo(x2, y2);
-  }
-
-  /**
-   * Draw the defined triangle into |ctx|.
-   *
-   * @param {Context} ctx The context to draw into.
-   * @param {float} x1 The first corner x.
-   * @param {float} y1 The first corner y.
-   * @param {float} x2 The second corner x.
-   * @param {float} y2 The second corner y.
-   * @param {float} x3 The third corner x.
-   * @param {float} y3 The third corner y.
-   */
-  function drawTriangle(ctx, x1, y1, x2, y2, x3, y3) {
-    ctx.beginPath();
-    ctx.moveTo(x1, y1);
-    ctx.lineTo(x2, y2);
-    ctx.lineTo(x3, y3);
-    ctx.closePath();
-  }
-
-  /**
-   * Draw an arrow into |ctx|.
-   *
-   * @param {Context} ctx The context to draw into.
-   * @param {float} x1 The shaft x.
-   * @param {float} y1 The shaft y.
-   * @param {float} x2 The head x.
-   * @param {float} y2 The head y.
-   * @param {float} arrowLength The length of the head.
-   * @param {float} arrowWidth The width of the head.
-   */
-  function drawArrow(ctx, x1, y1, x2, y2, arrowLength, arrowWidth) {
-    var dx = x2 - x1;
-    var dy = y2 - y1;
-    var len = Math.sqrt(dx * dx + dy * dy);
-    var perc = (len - arrowLength) / len;
-    var bx = x1 + perc * dx;
-    var by = y1 + perc * dy;
-    var ux = dx / len;
-    var uy = dy / len;
-    var ax = uy * arrowWidth;
-    var ay = -ux * arrowWidth;
-
-    ctx.beginPath();
-    drawLine(ctx, x1, y1, x2, y2);
-    ctx.stroke();
-
-    drawTriangle(ctx,
-        bx + ax, by + ay,
-        x2, y2,
-        bx - ax, by - ay);
-    ctx.fill();
-  }
-
-  /**
-   * Draw the provided slices to the screen.
-   *
-   * Each of the elements in |slices| must provide the follow methods:
-   *   * start
-   *   * duration
-   *   * colorId
-   *   * selected
-   *
-   * @param {Context} ctx The canvas context.
-   * @param {TimelineDrawTransform} dt The draw transform.
-   * @param {float} viewLWorld The left most point of the world viewport.
-   * @param {float} viewLWorld The right most point of the world viewport.
-   * @param {float} viewHeight The height of the viewport.
-   * @param {Array} slices The slices to draw.
-   * @param {bool} async Whether the slices are drawn with async style.
-   */
-  function drawSlices(ctx, dt, viewLWorld, viewRWorld, viewHeight, slices,
-                      async) {
-    var pixelRatio = window.devicePixelRatio || 1;
-    var pixWidth = dt.xViewVectorToWorld(1);
-    var height = viewHeight * pixelRatio;
-
-    // Begin rendering in world space.
-    ctx.save();
-    dt.applyTransformToCanvas(ctx);
-
-    var tr = new tracing.FastRectRenderer(
-        ctx, 2 * pixWidth, 2 * pixWidth, palette);
-    tr.setYandH(0, height);
-
-    var lowSlice = base.findLowIndexInSortedArray(
-        slices,
-        function(slice) { return slice.start + slice.duration; },
-        viewLWorld);
-
-    for (var i = lowSlice; i < slices.length; ++i) {
-      var slice = slices[i];
-      var x = slice.start;
-      if (x > viewRWorld)
-        break;
-
-      var w = pixWidth;
-      if (slice.duration > 0) {
-        w = Math.max(slice.duration, 0.001);
-        if (w < pixWidth)
-          w = pixWidth;
-      }
-
-      var colorId = EventPresenter.getSliceColorId(slice);
-      var alpha = EventPresenter.getSliceAlpha(slice, async);
-      tr.fillRect(x, w, colorId, alpha);
-    }
-    tr.flush();
-    ctx.restore();
-  }
-
-  /**
-   * Draw the provided instant slices as lines to the screen.
-   *
-   * Each of the elements in |slices| must provide the follow methods:
-   *   * start
-   *   * duration with value of 0.
-   *   * colorId
-   *   * selected
-   *
-   * @param {Context} ctx The canvas context.
-   * @param {TimelineDrawTransform} dt The draw transform.
-   * @param {float} viewLWorld The left most point of the world viewport.
-   * @param {float} viewLWorld The right most point of the world viewport.
-   * @param {float} viewHeight The height of the viewport.
-   * @param {Array} slices The slices to draw.
-   * @param {Numer} lineWidthInPixels The width of the lines.
-   */
-  function drawInstantSlicesAsLines(
-      ctx, dt, viewLWorld, viewRWorld, viewHeight, slices, lineWidthInPixels) {
-    var pixelRatio = window.devicePixelRatio || 1;
-    var height = viewHeight * pixelRatio;
-
-    var pixWidth = dt.xViewVectorToWorld(1);
-
-    // Begin rendering in world space.
-    ctx.save();
-    ctx.lineWidth = pixWidth * lineWidthInPixels;
-    dt.applyTransformToCanvas(ctx);
-    ctx.beginPath();
-
-    var lowSlice = base.findLowIndexInSortedArray(
-        slices,
-        function(slice) { return slice.start; },
-        viewLWorld);
-
-    for (var i = lowSlice; i < slices.length; ++i) {
-      var slice = slices[i];
-      var x = slice.start;
-      if (x > viewRWorld)
-        break;
-
-      ctx.strokeStyle = EventPresenter.getInstantSliceColor(slice);
-
-      ctx.moveTo(x, 0);
-      ctx.lineTo(x, height);
-    }
-    ctx.stroke();
-    ctx.restore();
-  }
-
-  /**
-   * Draws the labels for the given slices.
-   *
-   * The |slices| array must contain objects with the following API:
-   *   * start
-   *   * duration
-   *   * title
-   *   * didNotFinish (optional)
-   *
-   * @param {Context} ctx The graphics context.
-   * @param {TimelineDrawTransform} dt The draw transform.
-   * @param {float} viewLWorld The left most point of the world viewport.
-   * @param {float} viewLWorld The right most point of the world viewport.
-   * @param {Array} slices The slices to label.
-   * @param {bool} async Whether the slice labels are drawn with async style.
-   */
-  function drawLabels(ctx, dt, viewLWorld, viewRWorld, slices, async) {
-    var pixelRatio = window.devicePixelRatio || 1;
-    var pixWidth = dt.xViewVectorToWorld(1);
-
-    ctx.save();
-
-    ctx.textAlign = 'center';
-    ctx.textBaseline = 'top';
-    ctx.font = (10 * pixelRatio) + 'px sans-serif';
-
-    if (async)
-      ctx.font = 'italic ' + ctx.font;
-
-    var lowSlice = base.findLowIndexInSortedArray(
-        slices,
-        function(slice) { return slice.start + slice.duration; },
-        viewLWorld);
-
-    // Don't render text until until it is 20px wide
-    var quickDiscardThresshold = pixWidth * 20;
-    for (var i = lowSlice; i < slices.length; ++i) {
-      var slice = slices[i];
-      if (slice.start > viewRWorld)
-        break;
-
-      if (slice.duration <= quickDiscardThresshold)
-        continue;
-
-      var title = slice.title +
-          (slice.didNotFinish ? ' (Did Not Finish)' : '');
-
-      var drawnTitle = title;
-      var drawnWidth = elidedTitleCache.labelWidth(ctx, drawnTitle);
-      var fullLabelWidth = elidedTitleCache.labelWidthWorld(
-          ctx, drawnTitle, pixWidth);
-      if (SHOULD_ELIDE_TEXT && fullLabelWidth > slice.duration) {
-        var elidedValues = elidedTitleCache.get(
-            ctx, pixWidth,
-            drawnTitle, drawnWidth,
-            slice.duration);
-        drawnTitle = elidedValues.string;
-        drawnWidth = elidedValues.width;
-      }
-
-      if (drawnWidth * pixWidth < slice.duration) {
-        ctx.fillStyle = EventPresenter.getTextColor(slice);
-        var cX = dt.xWorldToView(slice.start + 0.5 * slice.duration);
-        ctx.fillText(drawnTitle, cX, 2.5 * pixelRatio, drawnWidth);
-      }
-    }
-    ctx.restore();
-  }
-
-  return {
-    drawSlices: drawSlices,
-    drawInstantSlicesAsLines: drawInstantSlicesAsLines,
-    drawLabels: drawLabels,
-
-    drawLine: drawLine,
-    drawTriangle: drawTriangle,
-    drawArrow: drawArrow,
-
-    elidedTitleCache_: elidedTitleCache
-  };
-});