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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
import QtQuick
import QtCreator.Tracing
Item {
id: timeMarks
visible: model && (mockup || (!model.hidden && !model.empty))
property TimelineModel model
property bool startOdd
property bool mockup
readonly property int scaleMinHeight: 60
readonly property int scaleStepping: 30
readonly property string units: " kMGT"
property int rowCount: model ? model.rowCount : 0
function roundTo3Digits(number: real) : real {
var factor;
if (number < 10)
factor = 100;
else if (number < 100)
factor = 10;
else
factor = 1;
return Math.round(number * factor) / factor;
}
function prettyPrintScale(amount: real) : string {
var sign;
if (amount < 0) {
sign = "-";
amount = -amount;
} else {
sign = "";
}
var unitOffset = 0;
var unitAmount = 1;
for (unitOffset = 0; amount > unitAmount * 1024; ++unitOffset, unitAmount *= 1024) {}
var result = amount / unitAmount;
return sign + roundTo3Digits(result) + units[unitOffset];
}
Connections {
target: timeMarks.model
function onExpandedRowHeightChanged(row: real, height: real) {
if (timeMarks.model && timeMarks.model.expanded && row >= 0)
rowRepeater.itemAt(row).height = height;
}
}
Column {
id: scaleArea
anchors.left: parent.left
anchors.right: parent.right
Repeater {
id: rowRepeater
model: timeMarks.rowCount
Rectangle {
id: scaleItem
required property int index
property TimeMarks scope: timeMarks
color: ((index + (scope.startOdd ? 1 : 0)) % 2)
? Theme.color(Theme.Timeline_BackgroundColor1)
: Theme.color(Theme.Timeline_BackgroundColor2)
anchors.left: scaleArea.left
anchors.right: scaleArea.right
height: scope.model ? scope.model.rowHeight(index) : 0
property double minVal: scope.model ? scope.model.rowMinValue(index) : 0
property double maxVal: scope.model ? scope.model.rowMaxValue(index) : 0
property double valDiff: maxVal - minVal
property bool scaleVisible: scope.model && scope.model.expanded &&
height > scaleMinHeight && valDiff > 0
property double stepVal: {
var ret = 1;
var ugly = Math.ceil(valDiff / Math.floor(height / scaleStepping));
while (isFinite(ugly) && ugly > 1) {
ugly /= 2;
ret *= 2;
}
return ret;
}
Loader {
anchors.fill: parent
active: parent.scaleVisible
sourceComponent: Item {
id: scaleParent
anchors.fill: parent
TimelineText {
id: scaleTopLabel
font.pixelSize: 8
anchors.top: parent.top
anchors.leftMargin: 2
anchors.topMargin: 2
anchors.left: parent.left
text: prettyPrintScale(scaleItem.maxVal)
}
Repeater {
model: scaleItem.valDiff / scaleItem.stepVal
Item {
anchors.left: scaleParent.left
anchors.right: scaleParent.right
height: scaleItem.stepVal * scaleItem.height / scaleItem.valDiff
y: scaleItem.height - (index + 1) * height
visible: y > scaleTopLabel.height
TimelineText {
font.pixelSize: 8
anchors.bottom: parent.bottom
anchors.bottomMargin: 2
anchors.leftMargin: 2
anchors.left: parent.left
text: prettyPrintScale(scaleItem.minVal + index * scaleItem.stepVal)
}
Rectangle {
height: 1
anchors.left: parent.left
anchors.right: parent.right
anchors.bottom: parent.bottom
color: Theme.color(Theme.Timeline_DividerColor)
}
}
}
}
}
}
}
}
}
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