add book

Qt6QMLBeginnersCode/8-QtQuickControls/3-BusyIndicator/CMakeLists.txt

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+# Copyright (c) Daniel Gakwaya.
+# SPDX-License-Identifier: MIT
+
+cmake_minimum_required(VERSION 3.16)
+
+project(3-BusyIndicator VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.5 REQUIRED COMPONENTS Quick QuickControls2)
+
+qt_standard_project_setup(REQUIRES 6.5)
+
+qt_add_executable(app3-BusyIndicator
+    main.cpp
+)
+
+qt_add_qml_module(app3-BusyIndicator
+    URI 3-BusyIndicator
+    VERSION 1.0
+    QML_FILES Main.qml
+)
+
+set_target_properties(app3-BusyIndicator PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
+    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(app3-BusyIndicator
+    PRIVATE Qt6::Quick Qt6::QuickControls2
+)
+
+install(TARGETS app3-BusyIndicator
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

Qt6QMLBeginnersCode/8-QtQuickControls/3-BusyIndicator/Main.qml

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+// Copyright (c) Daniel Gakwaya.
+// SPDX-License-Identifier: MIT
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+
+Window {
+    visible: true
+    width: 640
+    height: 480
+    title: qsTr("BusyIndicator")
+
+    ColumnLayout {
+        width: parent.width
+        //height: parent.height
+
+        BusyIndicator{
+            id: busyIndicatorId
+            Layout.alignment: Qt.AlignHCenter
+            running: false
+            //visible: false
+        }
+
+        ColumnLayout {
+            Button{
+                id: button1
+                text: "Running"
+                Layout.fillWidth: true
+                onClicked: {
+                    busyIndicatorId.running = true
+                    //busyIndicatorId.visible = true
+
+                }
+            }
+
+            Button {
+                id: button2
+                text: "Not Running"
+                Layout.fillWidth: true
+                onClicked: {
+                    busyIndicatorId.running = false
+                    //busyIndicatorId.visible = false
+
+                }
+            }
+        }
+
+        /*
+        Item {
+            Layout.fillHeight: true
+            Layout.fillWidth: true
+            Rectangle {
+                anchors.fill: parent
+                color: "red"
+            }
+        }
+        */
+
+    }
+}

Qt6QMLBeginnersCode/8-QtQuickControls/3-BusyIndicator/main.cpp

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+// Copyright (c) Daniel Gakwaya.
+// SPDX-License-Identifier: MIT
+
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QQuickStyle>
+
+
+int main(int argc, char *argv[])
+{
+
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+	QQuickStyle::setStyle("Material");
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
+        &app, []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.loadFromModule("3-BusyIndicator", "Main");
+
+    return app.exec();
+}