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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
.pragma library
var qmlProfilerModelProxy = 0;
//draw background of the graph
function drawGraph(canvas, ctxt, region)
{
ctxt.fillStyle = "#eaeaea";
ctxt.fillRect(0, 0, canvas.width, canvas.height);
}
//draw the actual data to be graphed
function drawData(canvas, ctxt, region)
{
if ((!qmlProfilerModelProxy) || qmlProfilerModelProxy.count() == 0)
return;
var width = canvas.width;
var bump = 10;
var height = canvas.height - bump;
var typeCount = qmlProfilerModelProxy.visibleCategories();
var blockHeight = height / typeCount;
var spacing = width / qmlProfilerModelProxy.traceDuration();
var modelRowStart = 0;
for (var modelIndex = 0; modelIndex < qmlProfilerModelProxy.modelCount(); modelIndex++) {
for (var ii = 0; ii < qmlProfilerModelProxy.count(modelIndex); ++ii) {
var xx = (qmlProfilerModelProxy.getStartTime(modelIndex,ii) -
qmlProfilerModelProxy.traceStartTime()) * spacing;
if (xx > region.x + region.width)
continue;
var eventWidth = qmlProfilerModelProxy.getDuration(modelIndex,ii) * spacing;
if (xx + eventWidth < region.x)
continue;
if (eventWidth < 1)
eventWidth = 1;
xx = Math.round(xx);
var rowNumber = modelRowStart + qmlProfilerModelProxy.getEventCategoryInModel(modelIndex, ii);
var itemHeight = qmlProfilerModelProxy.getHeight(modelIndex,ii) * blockHeight;
var yy = (rowNumber + 1) * blockHeight - itemHeight ;
var itemColor = qmlProfilerModelProxy.getColorRGB(modelIndex, ii);
ctxt.fillStyle = "rgb("+itemColor[0]+","+itemColor[1]+","+itemColor[2]+")";
ctxt.fillRect(xx, bump + yy, eventWidth, itemHeight);
}
modelRowStart += qmlProfilerModelProxy.categoryCount(modelIndex);
}
// binding loops
ctxt.strokeStyle = "orange";
ctxt.lineWidth = 2;
var radius = 1;
modelRowStart = 0;
for (modelIndex = 0; modelIndex < qmlProfilerModelProxy.modelCount(); modelIndex++) {
for (ii = 0; ii < qmlProfilerModelProxy.count(modelIndex); ++ii) {
if (qmlProfilerModelProxy.getBindingLoopDest(modelIndex,ii) >= 0) {
var xcenter = Math.round(qmlProfilerModelProxy.getStartTime(modelIndex,ii) +
qmlProfilerModelProxy.getDuration(modelIndex,ii) -
qmlProfilerModelProxy.traceStartTime()) * spacing;
var ycenter = Math.round(bump + (modelRowStart +
qmlProfilerModelProxy.getEventCategoryInModel(modelIndex, ii)) *
blockHeight + blockHeight/2);
ctxt.beginPath();
ctxt.arc(xcenter, ycenter, radius, 0, 2*Math.PI, true);
ctxt.stroke();
}
}
modelRowStart += qmlProfilerModelProxy.categoryCount(modelIndex);
}
}
function drawTimeBar(canvas, ctxt, region)
{
if (!qmlProfilerModelProxy)
return;
var width = canvas.width;
var height = 10;
var startTime = qmlProfilerModelProxy.traceStartTime();
var endTime = qmlProfilerModelProxy.traceEndTime();
var totalTime = qmlProfilerModelProxy.traceDuration();
var spacing = width / totalTime;
var initialBlockLength = 120;
var timePerBlock = Math.pow(2, Math.floor( Math.log( totalTime / width *
initialBlockLength ) / Math.LN2 ) );
var pixelsPerBlock = timePerBlock * spacing;
var pixelsPerSection = pixelsPerBlock / 5;
var blockCount = width / pixelsPerBlock;
var realStartTime = Math.floor(startTime/timePerBlock) * timePerBlock;
var realStartPos = (startTime-realStartTime) * spacing;
var timePerPixel = timePerBlock/pixelsPerBlock;
ctxt.fillStyle = "#000000";
ctxt.font = "6px sans-serif";
ctxt.fillStyle = "#cccccc";
ctxt.fillRect(0, 0, width, height);
for (var ii = 0; ii < blockCount+1; ii++) {
var x = Math.floor(ii*pixelsPerBlock - realStartPos);
// block boundary
ctxt.strokeStyle = "#525252";
ctxt.beginPath();
ctxt.moveTo(x, height/2);
ctxt.lineTo(x, height);
ctxt.stroke();
// block time label
ctxt.fillStyle = "#000000";
var timeString = prettyPrintTime((ii+0.5)*timePerBlock + realStartTime);
ctxt.textAlign = "center";
ctxt.fillText(timeString, x + pixelsPerBlock/2, height/2 + 3);
}
ctxt.fillStyle = "#808080";
ctxt.fillRect(0, height-1, width, 1);
}
function prettyPrintTime( t )
{
if (t <= 0) return "0";
if (t<1000) return t+" ns";
t = t/1000;
if (t<1000) return t+" μs";
t = Math.floor(t/100)/10;
if (t<1000) return t+" ms";
t = Math.floor(t)/1000;
if (t<60) return t+" s";
var m = Math.floor(t/60);
t = Math.floor(t - m*60);
return m+"m"+t+"s";
}
function plot(canvas, ctxt, region)
{
drawGraph(canvas, ctxt, region);
drawData(canvas, ctxt, region);
drawTimeBar(canvas, ctxt, region);
}
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