Add example for Widget window in Qt Quick

Blog-projects/Widget-window-in-Qt-Quick-app/.gitignore

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+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+CMakeLists.txt.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+
+*build*

Blog-projects/Widget-window-in-Qt-Quick-app/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+project(WidgetWindowsInQtQuickApp VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.5 REQUIRED COMPONENTS Quick Widgets)
+
+qt_standard_project_setup(REQUIRES 6.5)
+
+qt_add_executable(appWidgetWindowsInQtQuickApp
+    main.cpp
+)
+
+qt_add_qml_module(appWidgetWindowsInQtQuickApp
+    URI WidgetWindowsInQtQuickApp
+    VERSION 1.0
+    QML_FILES
+        Main.qml
+        FontControlsQmlForm.qml
+    SOURCES
+        fontsbackend.h fontsbackend.cpp
+        fontcontrolswidgetsform.h fontcontrolswidgetsform.cpp
+        timer.h timer.cpp
+        widgetFormHandler.h widgetFormHandler.cpp
+        RESOURCES fontcontrolswidgetsform.ui
+)
+
+# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
+# If you are developing for iOS or macOS you should consider setting an
+# explicit, fixed bundle identifier manually though.
+set_target_properties(appWidgetWindowsInQtQuickApp PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER com.kdab.appWidgetWindowsInQtQuickApp
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(appWidgetWindowsInQtQuickApp
+    PRIVATE Qt6::Quick Qt6::Widgets)
+
+include(GNUInstallDirs)
+install(TARGETS appWidgetWindowsInQtQuickApp
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

Blog-projects/Widget-window-in-Qt-Quick-app/FontControlsQmlForm.qml

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+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import WidgetWindowsInQtQuickApp as Cpp
+
+Window {
+    id: window
+    readonly property alias text: textField.text
+    readonly property string font: fontSelector.model[fontSelector.currentIndex]
+    signal toggleWidgetsWindow
+    height: 110
+    width: 300
+    minimumHeight: 110
+    minimumWidth: 260
+    visible: true
+    title: qsTr("Font Controls - Qt Quick")
+    color: systemPalette.window
+    SystemPalette {
+        id: systemPalette
+    }
+    ColumnLayout {
+        anchors.fill: parent
+        anchors.margins: 10
+        TextField {
+            id: textField
+            text: "KDAB"
+            focus: true
+            Layout.fillWidth: true
+        }
+        Button {
+            text: "Switch to Widgets Form"
+            Layout.fillWidth: true
+            onClicked: {
+                window.toggleWidgetsWindow();
+            }
+        }
+        ComboBox {
+            id: fontSelector
+            model: fontsBackend.fontList()
+            editable: true
+            Layout.fillWidth: true
+            Component.onCompleted: {
+                if (!fontSelector.currentIndex)
+                    currentIndex = indexOfValue("Noto Sans")
+            }
+            Cpp.FontsBackend {
+                id: fontsBackend
+            }
+        }
+    }
+}

Blog-projects/Widget-window-in-Qt-Quick-app/Main.qml

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+import QtQuick
+import WidgetWindowsInQtQuickApp as Cpp
+
+Window {
+    id: frame
+    property bool widgetsWindow: false
+    function updatePosition(miliseconds: int): void {
+        const time = miliseconds / 1000.0;
+        const aspectRatio = boundary.right / boundary.bottom * 11
+        x = triangleWave(time, boundary.right, aspectRatio);
+        y = triangleWave(time, boundary.bottom, 1-aspectRatio);
+    }
+    function triangleWave(x: double, amplitude: int, period: double): int {
+        return Math.abs((2*amplitude)/Math.PI*Math.asin(Math.sin((2*Math.PI)/period*x)));
+    }
+    function toggleWidgetsWindow() {
+        frame.widgetsWindow = !frame.widgetsWindow
+    }
+    flags: Qt.FramelessWindowHint
+    color: "transparent"
+    visible: false
+    width: bounce.width + 1
+    height: bounce.height
+    QtObject {
+        id: boundary
+        readonly property int right: Screen.desktopAvailableWidth - frame.width
+        readonly property int bottom: Screen.desktopAvailableHeight - frame.height
+    }
+    Text {
+        id: bounce
+        text: frame.widgetsWindow ? fontWidgetsForm.text : fontQmlForm.text
+        font.pixelSize: 120
+        font.family: frame.widgetsWindow ? fontWidgetsForm.font : fontQmlForm.font
+        color: "#0077C8"
+        Rectangle {
+            color: "transparent"
+            anchors.fill: parent
+            border.color: bounce.color
+            border.width: 4
+        }
+    }
+    Timer {
+        id: timer
+        readonly property int startOffset: Math.random() * 36000
+        running: true
+        triggeredOnStart: true
+        repeat: true
+        interval: 10
+        onTriggered: {
+            frame.updatePosition(startOffset + elapsedtimer.deltaTime());
+            frame.visible = true;
+        }
+    }
+    Cpp.Timer {
+        id: elapsedtimer
+    }
+    FontControlsQmlForm {
+        id: fontQmlForm
+        visible: !frame.widgetsWindow
+        onToggleWidgetsWindow: () => {
+            frame.toggleWidgetsWindow();
+        }
+        onClosing: {
+            Qt.quit();
+        }
+    }
+    Cpp.WidgetFormHandler {
+        id: fontWidgetsForm
+        visible: frame.widgetsWindow
+        onToggleWidgetsWindow: () => {
+            frame.toggleWidgetsWindow();
+        }
+    }
+}

Blog-projects/Widget-window-in-Qt-Quick-app/fontcontrolswidgetsform.cpp

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+#include "fontcontrolswidgetsform.h"
+#include "ui_fontcontrolswidgetsform.h"
+
+FontControlsWidgetsForm::FontControlsWidgetsForm(QWidget *parent)
+    : QWidget(parent)
+    , ui(new Ui::FontControlsWidgetsForm)
+{
+    ui->setupUi(this);
+}
+
+FontControlsWidgetsForm::~FontControlsWidgetsForm()
+{
+    delete ui;
+}
+
+QString FontControlsWidgetsForm::getText()
+{
+    return ui->lineEdit->text();
+}
+
+void FontControlsWidgetsForm::on_lineEdit_textChanged(const QString &arg1)
+{
+    emit textChanged();
+}
+
+void FontControlsWidgetsForm::setText(const QString &text)
+{
+    ui->lineEdit->setText(text);
+    emit textChanged();
+}
+
+QString FontControlsWidgetsForm::getFont()
+{
+    return ui->fontComboBox->currentFont().family();
+}
+
+void FontControlsWidgetsForm::closeEvent(QCloseEvent *event) {
+    QApplication::quit();
+}
+
+void FontControlsWidgetsForm::on_fontComboBox_currentFontChanged(const QFont &f)
+{
+    emit fontChanged();
+}
+

Blog-projects/Widget-window-in-Qt-Quick-app/fontcontrolswidgetsform.h

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+#ifndef FONTCONTROLSWIDGETSFORM_H
+#define FONTCONTROLSWIDGETSFORM_H
+
+#include <QWidget>
+
+namespace Ui {
+class FontControlsWidgetsForm;
+}
+
+class FontControlsWidgetsForm : public QWidget
+{
+    Q_OBJECT
+    Q_PROPERTY(QString text READ getText WRITE setText NOTIFY textChanged)
+    Q_PROPERTY(QString font READ getFont NOTIFY fontChanged)
+
+public:
+    explicit FontControlsWidgetsForm(QWidget *parent = nullptr);
+    ~FontControlsWidgetsForm();
+
+    QString getText();
+    void setText(const QString&);
+    QString getFont();
+
+signals:
+    void textChanged();
+    void fontChanged();
+    void on_pushButton_clicked();
+
+protected:
+    void closeEvent(QCloseEvent *event);
+
+private slots:
+    void on_lineEdit_textChanged(const QString &arg1);
+    void on_fontComboBox_currentFontChanged(const QFont &f);
+
+private:
+    Ui::FontControlsWidgetsForm *ui;
+};
+
+#endif // FONTCONTROLSWIDGETSFORM_H

Blog-projects/Widget-window-in-Qt-Quick-app/fontcontrolswidgetsform.ui

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+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FontControlsWidgetsForm</class>
+ <widget class="QWidget" name="FontControlsWidgetsForm">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>300</width>
+    <height>110</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Font Controls - Qt Widgets</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <widget class="QLineEdit" name="lineEdit">
+     <property name="text">
+      <string>KDAB</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPushButton" name="pushButton">
+     <property name="text">
+      <string>Switch to QML Form</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QFontComboBox" name="fontComboBox"/>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

Blog-projects/Widget-window-in-Qt-Quick-app/fontsbackend.cpp

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+#include "fontsbackend.h"
+
+#include <QFontDatabase>
+
+FontsBackend::FontsBackend(QObject *parent)
+    : QObject{parent}
+{
+}
+
+QStringList FontsBackend::fontList()
+{
+    return QFontDatabase::families();
+}