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/****************************************************************************
**
** Copyright (C) 2014 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.
**
****************************************************************************/
import QtQuick 2.1
import Monitor 1.0
Canvas2D {
id: timeDisplay
objectName: "TimeMarks"
property real startTime
property real endTime
property real timePerPixel
Connections {
target: labels
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;
var lineStart = y < 0 ? -y : 0;
var lineEnd = Math.min(height, labels.height - y);
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 = "#B0B0B0";
ctxt.beginPath();
ctxt.moveTo(x, lineStart);
ctxt.lineTo(x, lineEnd);
ctxt.stroke();
ctxt.strokeStyle = "#CCCCCC";
for (var jj=1; jj < 5; jj++) {
var xx = Math.floor(ii*pixelsPerBlock + jj*pixelsPerSection - realStartPos);
ctxt.beginPath();
ctxt.moveTo(xx, lineStart);
ctxt.lineTo(xx, lineEnd);
ctxt.stroke();
}
}
}
function updateMarks(start, end) {
if (startTime !== start || endTime !== end) {
startTime = start;
endTime = end;
requestRedraw();
}
}
function drawBackgroundBars( ctxt, region ) {
var colorIndex = true;
// row background
var backgroundOffset = y < 0 ? -y : -(y % (2 * root.singleRowHeight));
for (var currentY= backgroundOffset; currentY < Math.min(height, labels.height - y); currentY += root.singleRowHeight) {
ctxt.fillStyle = colorIndex ? "#f0f0f0" : "white";
ctxt.strokeStyle = colorIndex ? "#f0f0f0" : "white";
ctxt.fillRect(0, currentY, width, root.singleRowHeight);
colorIndex = !colorIndex;
}
// separators
var cumulatedHeight = 0;
for (var modelIndex = 0; modelIndex < qmlProfilerModelProxy.modelCount() && cumulatedHeight < y + height; modelIndex++) {
for (var i=0; i<qmlProfilerModelProxy.categoryCount(modelIndex); i++) {
cumulatedHeight += root.singleRowHeight * qmlProfilerModelProxy.categoryDepth(modelIndex, i);
if (cumulatedHeight < y)
continue;
ctxt.strokeStyle = "#B0B0B0";
ctxt.beginPath();
ctxt.moveTo(0, cumulatedHeight - y);
ctxt.lineTo(width, cumulatedHeight - y);
ctxt.stroke();
}
}
// bottom
if (height > labels.height - y) {
ctxt.fillStyle = "#f5f5f5";
ctxt.fillRect(0, labels.height - y, width, Math.min(height - labels.height + y, labelsTail.height));
}
}
}
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