add book

Qt6QMLBeginnersCode/8-QtQuickControls/7-Dial/CMakeLists.txt

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+# Copyright (c) Daniel Gakwaya.
+# SPDX-License-Identifier: MIT
+
+cmake_minimum_required(VERSION 3.16)
+
+project(7-Dial 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(app7-Dial
+    main.cpp
+)
+
+qt_add_qml_module(app7-Dial
+    URI 7-Dial
+    VERSION 1.0
+    QML_FILES Main.qml
+)
+
+set_target_properties(app7-Dial 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(app7-Dial
+    PRIVATE Qt6::Quick Qt6::QuickControls2
+)
+
+install(TARGETS app7-Dial
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

Qt6QMLBeginnersCode/8-QtQuickControls/7-Dial/Main.qml

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+// Copyright (c) Daniel Gakwaya.
+// SPDX-License-Identifier: MIT
+
+import QtQuick
+import QtQuick.Controls
+
+Window {
+    visible: true
+    width: 640
+    height: 480
+    title: qsTr("Dial")
+
+    Column {
+        width: parent.width
+        spacing: 40
+
+        Label {
+            width: parent.width
+            wrapMode: Label.Wrap
+            horizontalAlignment: Qt.AlignHCenter
+            text: "A Knob used to let the user choose a value from a range"
+            font.pointSize: 15
+        }
+
+        Dial{
+            anchors.horizontalCenter: parent.horizontalCenter
+            from: 1
+            to: 100
+            value: 50
+            wrap: true
+
+            onValueChanged: {
+                console.log(" Current value: " + Math.ceil(value))
+            }
+
+        }
+
+    }
+}

Qt6QMLBeginnersCode/8-QtQuickControls/7-Dial/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;
+	//Load our style
+    QQuickStyle::setStyle("Material");
+	
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
+        &app, []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.loadFromModule("7-Dial", "Main");
+
+    return app.exec();
+}