| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| var htrace = htrace || {}; |
| |
| // Draws a vertical bar selecting a time. |
| htrace.TimeCursor = function(params) { |
| this.positionToTime = function(x) { |
| if ((x < this.x0) || (x > this.xF)) { |
| return -1; |
| } |
| return this.begin + |
| (((x - this.x0) * (this.end - this.begin)) / (this.xF - this.x0)); |
| }; |
| |
| this.timeToPosition = function(time) { |
| return this.x0 + (((time - this.begin) * |
| (this.xF - this.x0)) / (this.end - this.begin)); |
| }; |
| |
| this.draw = function() { |
| if (this.selectedTime != -1) { |
| this.ctx.save(); |
| this.ctx.beginPath(); |
| this.ctx.rect(this.x0, this.y0, |
| this.xF - this.x0, this.yF - this.y0); |
| this.ctx.clip(); |
| this.ctx.strokeStyle="#ff0000"; |
| var x = this.timeToPosition(this.selectedTime); |
| this.ctx.beginPath(); |
| this.ctx.moveTo(x, this.y0); |
| this.ctx.lineTo(x, this.yF); |
| this.ctx.stroke(); |
| this.ctx.restore(); |
| } |
| }; |
| |
| this.handle = function(e) { |
| switch (e.type) { |
| case "mouseMove": |
| if (htrace.inBoundingBox(e.x, e.y, |
| this.x0, this.xF, this.y0, this.yF)) { |
| this.selectedTime = this.positionToTime(e.x); |
| if (this.selectedTime < 0) { |
| $(this.el).val(""); |
| } else { |
| $(this.el).val(htrace.dateToString(this.selectedTime)); |
| } |
| return true; |
| } |
| return true; |
| case "draw": |
| this.draw(); |
| return true; |
| } |
| }; |
| |
| this.selectedTime = -1; |
| for (var k in params) { |
| this[k]=params[k]; |
| } |
| this.manager.register("mouseMove", this); |
| this.manager.register("draw", this); |
| return this; |
| }; |