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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
import QtQuick 1.0
import Monitor 1.0
Canvas2D {
id: timeDisplay
property variant startTime
property variant endTime
property variant timePerPixel
Component.onCompleted: {
requestRedraw();
}
onWidthChanged: {
requestRedraw();
}
onHeightChanged: {
requestRedraw();
}
onDrawRegion: {
drawBackgroundBars( ctxt, region );
var totalTime = endTime - startTime;
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;
timePerPixel = timePerBlock/pixelsPerBlock;
ctxt.fillStyle = "#000000";
ctxt.font = "8px sans-serif";
for (var ii = 0; ii < blockCount+1; ii++) {
var x = Math.floor(ii*pixelsPerBlock - realStartPos);
ctxt.strokeStyle = "#C0C0C0";
ctxt.beginPath();
ctxt.moveTo(x, 0);
ctxt.lineTo(x, height);
ctxt.stroke();
ctxt.strokeStyle = "#E0E0E0";
for (var jj=1; jj < 5; jj++) {
var xx = Math.floor(ii*pixelsPerBlock + jj*pixelsPerSection - realStartPos);
ctxt.beginPath();
ctxt.moveTo(xx, 0);
ctxt.lineTo(xx, height);
ctxt.stroke();
}
}
// gray off out-of-bounds areas
var rectWidth;
if (startTime < qmlEventList.traceStartTime()) {
ctxt.fillStyle = "rgba(127,127,127,0.2)";
rectWidth = (qmlEventList.traceStartTime() - startTime) * spacing;
ctxt.fillRect(0, 0, rectWidth, height);
}
if (endTime > qmlEventList.traceEndTime()) {
ctxt.fillStyle = "rgba(127,127,127,0.2)";
var rectX = (qmlEventList.traceEndTime() - startTime) * spacing;
rectWidth = (endTime - qmlEventList.traceEndTime()) * spacing;
ctxt.fillRect(rectX, 0, rectWidth, height);
}
}
function updateMarks(start, end) {
if (startTime !== start || endTime !== end) {
startTime = start;
endTime = end;
requestRedraw();
}
}
function drawBackgroundBars( ctxt, region ) {
var cumulatedHeight = 0;
for (var i=0; i<labels.rowCount; i++) {
var barHeight = labels.rowExpanded[i] ?
qmlEventList.uniqueEventsOfType(i) * root.singleRowHeight :
qmlEventList.maxNestingForType(i) * root.singleRowHeight;
ctxt.fillStyle = i%2 ? "#f0f0f0" : "white"
ctxt.strokeStyle = i%2 ? "#f0f0f0" : "white"
ctxt.fillRect(0, cumulatedHeight, width, barHeight);
cumulatedHeight += barHeight;
}
ctxt.fillStyle = "#f5f5f5";
ctxt.fillRect(0, labels.height, width, height - labels.height);
}
}
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