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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.
**
****************************************************************************/
#pragma once
#include "tracing_global.h"
#include "flamegraphattached.h"
#include <QAbstractItemModel>
#include <QQuickItem>
#include <QtQml/qqml.h>
namespace FlameGraph {
class TRACING_EXPORT FlameGraph : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(QQmlComponent* delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
Q_PROPERTY(QAbstractItemModel* model READ model WRITE setModel NOTIFY modelChanged)
Q_PROPERTY(int sizeRole READ sizeRole WRITE setSizeRole NOTIFY sizeRoleChanged)
Q_PROPERTY(qreal sizeThreshold READ sizeThreshold WRITE setSizeThreshold
NOTIFY sizeThresholdChanged)
Q_PROPERTY(int maximumDepth READ maximumDepth WRITE setMaximumDepth
NOTIFY maximumDepthChanged)
Q_PROPERTY(int depth READ depth NOTIFY depthChanged)
Q_PROPERTY(QPersistentModelIndex root READ root WRITE setRoot NOTIFY rootChanged)
Q_PROPERTY(bool zoomed READ isZoomed NOTIFY rootChanged)
Q_PROPERTY(int selectedTypeId READ selectedTypeId WRITE setSelectedTypeId
NOTIFY selectedTypeIdChanged)
QML_ELEMENT
public:
FlameGraph(QQuickItem *parent = nullptr);
QQmlComponent *delegate() const;
void setDelegate(QQmlComponent *delegate);
QAbstractItemModel *model() const;
void setModel(QAbstractItemModel *model);
int sizeRole() const;
void setSizeRole(int sizeRole);
qreal sizeThreshold() const;
void setSizeThreshold(qreal sizeThreshold);
int depth() const;
int maximumDepth() const
{
return m_maximumDepth;
}
void setMaximumDepth(int maximumDepth)
{
if (maximumDepth != m_maximumDepth) {
m_maximumDepth = maximumDepth;
emit maximumDepthChanged();
}
}
QPersistentModelIndex root() const
{
return m_root;
}
bool isZoomed() const
{
return m_root.isValid();
}
void setRoot(const QPersistentModelIndex &root)
{
if (root != m_root) {
m_root = root;
emit rootChanged(root);
}
}
Q_INVOKABLE void resetRoot()
{
setRoot(QModelIndex());
}
Q_INVOKABLE QVariant total(int role) const
{
return m_model ? m_model->data(m_root, role) : QVariant();
}
static FlameGraphAttached *qmlAttachedProperties(QObject *object);
int selectedTypeId() const
{
return m_selectedTypeId;
}
void setSelectedTypeId(int selectedTypeId)
{
if (m_selectedTypeId == selectedTypeId)
return;
m_selectedTypeId = selectedTypeId;
emit selectedTypeIdChanged(m_selectedTypeId);
}
signals:
void delegateChanged(QQmlComponent *delegate);
void modelChanged(QAbstractItemModel *model);
void sizeRoleChanged(int role);
void sizeThresholdChanged(qreal threshold);
void depthChanged(int depth);
void maximumDepthChanged();
void rootChanged(const QPersistentModelIndex &root);
void selectedTypeIdChanged(int selectedTypeId);
private:
void rebuild();
QQmlComponent *m_delegate = nullptr;
QAbstractItemModel *m_model = nullptr;
QPersistentModelIndex m_root;
int m_sizeRole = 0;
int m_depth = 0;
qreal m_sizeThreshold = 0;
int m_maximumDepth = std::numeric_limits<int>::max();
int m_selectedTypeId = -1;
int buildNode(const QModelIndex &parentIndex, QObject *parentObject, int depth,
int maximumDepth);
QObject *appendChild(QObject *parentObject, QQuickItem *parentItem, QQmlContext *context,
const QModelIndex &childIndex, qreal position, qreal size);
void mousePressEvent(QMouseEvent *event) final;
void mouseReleaseEvent(QMouseEvent *event) final;
void mouseDoubleClickEvent(QMouseEvent *event) final;
};
} // namespace FlameGraph
QML_DECLARE_TYPEINFO(FlameGraph::FlameGraph, QML_HAS_ATTACHED_PROPERTIES)
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