benchmark with rectangle

Qt_Performance_Benchmark/Qt_Performance_Benchmark.pro

@@ -1,6 +1,4 @@
-QT       += core gui
-
-greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+QT += quick
 
 CONFIG += c++11
 
@@ -9,16 +7,21 @@ CONFIG += c++11
 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
 SOURCES += \
-    main.cpp \
-    mainwindow.cpp
+        frequencymonitor.cpp \
+        main.cpp
 
-HEADERS += \
-    mainwindow.h
+RESOURCES += qml.qrc
 
-FORMS += \
-    mainwindow.ui
+# Additional import path used to resolve QML modules in Qt Creator's code model
+QML_IMPORT_PATH =
+
+# Additional import path used to resolve QML modules just for Qt Quick Designer
+QML_DESIGNER_IMPORT_PATH =
 
 # Default rules for deployment.
 qnx: target.path = /tmp/$${TARGET}/bin
 else: unix:!android: target.path = /opt/$${TARGET}/bin
 !isEmpty(target.path): INSTALLS += target
+
+HEADERS += \
+    frequencymonitor.h

Qt_Performance_Benchmark/Rect.qml

@@ -0,0 +1,20 @@
+import QtQuick 2.0
+
+
+
+
+
+Rectangle {
+
+    function randomInteger(min, max) {
+      return Math.floor(Math.random() * (max - min + 1)) + min;
+    }
+
+    width:100
+    height:100
+    color:Qt.rgba(Math.random(),Math.random(),Math.random(),1);
+    NumberAnimation on x {loops: Animation.Infinite; from: randomInteger(0, 1920); to: randomInteger(0, 1920); duration: 500 }
+    NumberAnimation on y {loops: Animation.Infinite; from: randomInteger(0, 900); to: randomInteger(0, 900); duration: 500 }
+
+}
+

Qt_Performance_Benchmark/frequencymonitor.cpp

@@ -0,0 +1,65 @@
+#include "frequencymonitor.h"
+#include <QQuickWindow>
+
+FrequencyMonitor::FrequencyMonitor(QQuickItem *parent) :
+    QQuickItem(parent),
+    m_counter(0),
+    m_refreshPeriod(1000)
+{
+    connect(this, &FrequencyMonitor::windowChanged, this, &FrequencyMonitor::handleWindowChanged);
+}
+
+int FrequencyMonitor::fps() const
+{
+    return m_fps;
+}
+
+void FrequencyMonitor::setFps(int fps)
+{
+    if (m_fps == fps)
+        return;
+
+    m_fps = fps;
+    emit fpsChanged();
+}
+
+int FrequencyMonitor::refreshPeriod() const
+{
+    return m_refreshPeriod;
+}
+
+void FrequencyMonitor::setRefreshPeriod(int msec)
+{
+    if (m_refreshPeriod == msec)
+        return;
+
+    m_refreshPeriod = msec;
+    emit refreshPeriodChanged();
+}
+
+void FrequencyMonitor::handleAfterRendering()
+{
+    const int elapsedMsec = m_time.elapsed();
+
+    m_counter++;
+
+    if (elapsedMsec >= m_refreshPeriod)
+    {
+        setFps(m_counter / (elapsedMsec / 1000.0));
+
+        m_counter = 0;
+        m_time.restart();
+    }
+}
+
+void FrequencyMonitor::handleWindowChanged(QQuickWindow *window)
+{
+    if (m_windowConnection)
+        this->disconnect(m_windowConnection);
+
+    if (window)
+    {
+        m_time.restart();
+        m_windowConnection = connect(window, &QQuickWindow::afterRendering, this, &FrequencyMonitor::handleAfterRendering);
+    }
+}

Qt_Performance_Benchmark/frequencymonitor.h

@@ -0,0 +1,42 @@
+#ifndef FREQUENCYMONITOR_H
+#define FREQUENCYMONITOR_H
+
+#include <QQuickItem>
+#include <QTime>
+#include <QMetaObject>
+
+class QQuickWindow;
+
+class FrequencyMonitor : public QQuickItem
+{
+    Q_OBJECT
+    Q_PROPERTY(int fps READ fps NOTIFY fpsChanged)
+    Q_PROPERTY(int refreshPeriod READ refreshPeriod WRITE setRefreshPeriod NOTIFY refreshPeriodChanged)
+public:
+    explicit FrequencyMonitor(QQuickItem *parent = 0);
+
+    int fps() const;
+    void setFps(int fps);
+
+    // by default refresh one time per 1000 msec
+    int refreshPeriod() const;
+    void setRefreshPeriod(int msec);
+
+signals:
+    void fpsChanged();
+    void refreshPeriodChanged();
+
+public slots:
+    void handleAfterRendering();
+    void handleWindowChanged(QQuickWindow * window);
+
+protected:
+    QMetaObject::Connection m_windowConnection;
+    QTime m_time;
+    int m_fps;
+    int m_counter;
+    int m_refreshPeriod;
+
+};
+
+#endif // FREQUENCYMONITOR_H

Qt_Performance_Benchmark/main.cpp

@@ -1,11 +1,26 @@
-#include "mainwindow.h"
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include "frequencymonitor.h"
+
+
 
-#include <QApplication>
 
 int main(int argc, char *argv[])
 {
-    QApplication a(argc, argv);
-    MainWindow w;
-    w.show();
-    return a.exec();
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+
+    QGuiApplication app(argc, argv);
+    
+    qmlRegisterType<FrequencyMonitor>("be.mindgoo.tools", 0, 1, "FrequencyMonitor");
+    
+    QQmlApplicationEngine engine;
+    const QUrl url(QStringLiteral("qrc:/main.qml"));
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
+                     &app, [url](QObject *obj, const QUrl &objUrl) {
+        if (!obj && url == objUrl)
+            QCoreApplication::exit(-1);
+    }, Qt::QueuedConnection);
+    engine.load(url);
+
+    return app.exec();
 }

Qt_Performance_Benchmark/main.qml

@@ -0,0 +1,56 @@
+import QtQuick 2.12
+import QtQuick.Window 2.12
+import QtQuick.Controls 2.3
+import be.mindgoo.tools 0.1
+
+Window {
+    id: rootwin
+    width: 1920
+    height: 1080
+    visible: true
+
+   property var elements: 0
+
+    FrequencyMonitor {
+           id: monitor
+           refreshPeriod: 500
+       }
+
+    function doSomething(){
+        rootwin.elements++
+        var component = Qt.createComponent("Rect.qml");
+               var rect = component.createObject(rootwin,{"x":0,"y":0});
+               if(rect !== null ) {
+                   rect.name = "Test";
+                   rect.x =  Math.floor(Math.random() * 100 );
+                   rect.y = Math.floor(Math.random() * 100 );
+             }
+    }
+    Button{
+        id: doBtn
+        text: "do"
+        x: 20
+        y: 1000
+        onClicked: rootwin.doSomething()
+    }
+
+    Text {
+        id: fpsCounter
+        x: 200
+        y: 1000
+        text: "FPS: " + monitor.fps
+    }
+
+    Text {
+        id: elementsCounter
+        x: 300
+        y: 1000
+        text: "Elements: " + rootwin.elements
+    }
+}
+
+/*##^##
+Designer {
+    D{i:0;formeditorZoom:2}
+}
+##^##*/

Qt_Performance_Benchmark/mainwindow.cpp

@@ -1,15 +0,0 @@
-#include "mainwindow.h"
-#include "ui_mainwindow.h"
-
-MainWindow::MainWindow(QWidget *parent)
-    : QMainWindow(parent)
-    , ui(new Ui::MainWindow)
-{
-    ui->setupUi(this);
-}
-
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
-

Qt_Performance_Benchmark/mainwindow.h

@@ -1,21 +0,0 @@
-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include <QMainWindow>
-
-QT_BEGIN_NAMESPACE
-namespace Ui { class MainWindow; }
-QT_END_NAMESPACE
-
-class MainWindow : public QMainWindow
-{
-    Q_OBJECT
-
-public:
-    MainWindow(QWidget *parent = nullptr);
-    ~MainWindow();
-
-private:
-    Ui::MainWindow *ui;
-};
-#endif // MAINWINDOW_H

Qt_Performance_Benchmark/mainwindow.ui

@@ -1,126 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>800</width>
-    <height>600</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>MainWindow</string>
-  </property>
-  <widget class="QWidget" name="centralwidget">
-   <widget class="QWidget" name="gridLayoutWidget">
-    <property name="geometry">
-     <rect>
-      <x>140</x>
-      <y>70</y>
-      <width>281</width>
-      <height>251</height>
-     </rect>
-    </property>
-    <layout class="QGridLayout" name="gridLayout">
-     <property name="leftMargin">
-      <number>20</number>
-     </property>
-     <property name="topMargin">
-      <number>20</number>
-     </property>
-     <property name="rightMargin">
-      <number>20</number>
-     </property>
-     <property name="bottomMargin">
-      <number>20</number>
-     </property>
-     <property name="horizontalSpacing">
-      <number>90</number>
-     </property>
-     <property name="verticalSpacing">
-      <number>6</number>
-     </property>
-     <item row="4" column="0">
-      <widget class="QCheckBox" name="checkBox">
-       <property name="text">
-        <string>CheckBox</string>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="0">
-      <widget class="QLineEdit" name="lineEdit">
-       <property name="text">
-        <string/>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="0">
-      <widget class="QLabel" name="label">
-       <property name="font">
-        <font>
-         <pointsize>9</pointsize>
-        </font>
-       </property>
-       <property name="text">
-        <string>Label</string>
-       </property>
-      </widget>
-     </item>
-     <item row="6" column="0">
-      <widget class="QDateEdit" name="dateEdit"/>
-     </item>
-     <item row="7" column="0">
-      <widget class="QSlider" name="horizontalSlider">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-      </widget>
-     </item>
-     <item row="5" column="0">
-      <widget class="QComboBox" name="comboBox">
-       <item>
-        <property name="text">
-         <string>First</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>Second</string>
-        </property>
-       </item>
-      </widget>
-     </item>
-     <item row="3" column="0">
-      <widget class="QPushButton" name="pushButton">
-       <property name="text">
-        <string>PushButton</string>
-       </property>
-      </widget>
-     </item>
-     <item row="8" column="0">
-      <widget class="QProgressBar" name="progressBar">
-       <property name="value">
-        <number>24</number>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </widget>
-  </widget>
-  <widget class="QMenuBar" name="menubar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>800</width>
-     <height>23</height>
-    </rect>
-   </property>
-  </widget>
-  <widget class="QStatusBar" name="statusbar"/>
- </widget>
- <resources/>
- <connections/>
-</ui>

Qt_Performance_Benchmark/qml.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+        <file>Rect.qml</file>
+    </qresource>
+</RCC>