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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** 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.
**
**
**************************************************************************/
import QtQuick 1.0
import Monitor 1.0
import "Overview.js" as Plotter
Canvas2D {
id: canvas
// ***** properties
height: 50
property bool dataAvailable: false
property variant startTime : 0
property variant endTime : 0
// ***** functions
function clearDisplay()
{
dataAvailable = false;
requestRedraw();
}
function updateRange() {
var newStartTime = Math.round(rangeMover.x * qmlProfilerDataModel.traceDuration() / width) + qmlProfilerDataModel.traceStartTime();
var newEndTime = Math.round((rangeMover.x + rangeMover.width) * qmlProfilerDataModel.traceDuration() / width) + qmlProfilerDataModel.traceStartTime();
if (startTime !== newStartTime || endTime !== newEndTime) {
zoomControl.setRange(newStartTime, newEndTime);
}
}
// ***** connections to external objects
Connections {
target: zoomControl
onRangeChanged: {
if (qmlProfilerDataModel) {
startTime = zoomControl.startTime();
endTime = zoomControl.endTime();
var newRangeX = (startTime - qmlProfilerDataModel.traceStartTime()) * width / qmlProfilerDataModel.traceDuration();
if (rangeMover.x !== newRangeX)
rangeMover.x = newRangeX;
var newWidth = (endTime-startTime) * width / qmlProfilerDataModel.traceDuration();
if (rangeMover.width !== newWidth)
rangeMover.width = newWidth;
}
}
}
Connections {
target: qmlProfilerDataModel
onStateChanged: {
// State is "done"
if (qmlProfilerDataModel.getCurrentStateFromQml() == 3) {
dataAvailable = true;
requestRedraw();
}
}
}
// ***** slots
onDrawRegion: {
Plotter.qmlProfilerDataModel = qmlProfilerDataModel;
if (dataAvailable) {
Plotter.plot(canvas, ctxt, region);
} else {
Plotter.drawGraph(canvas, ctxt, region) //just draw the background
}
}
// ***** child items
MouseArea {
anchors.fill: canvas
function jumpTo(posX) {
var newX = posX - rangeMover.width/2;
if (newX < 0)
newX = 0;
if (newX + rangeMover.width > canvas.width)
newX = canvas.width - rangeMover.width;
rangeMover.x = newX;
updateRange();
}
onPressed: {
jumpTo(mouse.x);
}
onMousePositionChanged: {
jumpTo(mouse.x);
}
}
RangeMover {
id: rangeMover
visible: dataAvailable
}
Rectangle {
height: 1
width: parent.width
color: "#858585"
}
}
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