Add AboutDialog component

Author: adazem009

src/app/CMakeLists.txt

@@ -13,6 +13,7 @@ qt_add_qml_module(${APP_TARGET}
     VERSION 1.0
     QML_FILES
         qml/main.qml
+        qml/dialogs/AboutDialog.qml
 )
 
 set(QML_IMPORT_PATH "${QML_IMPORT_PATH};${CMAKE_CURRENT_LIST_DIR}"

src/app/qml/dialogs/AboutDialog.qml

@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import ScratchCPP.Ui
+import ScratchCPP.UiComponents
+
+CustomDialog {
+    //: For example "About ScratchCPP" (%1 is the app name)
+    title: qsTr("About %1").arg(Qt.application.displayName)
+    standardButtons: Dialog.Ok
+
+    contentItem: RowLayout {
+        spacing: 25
+
+        /*Image {
+            source: "qrc:/res/images/icon.ico"
+            sourceSize.width: 60
+            sourceSize.height: 60
+            Layout.alignment: Qt.AlignTop
+        }*/
+
+        ColumnLayout {
+            Label {
+                text: Qt.application.displayName
+                font.bold: true
+            }
+
+            Label {}
+
+            Label {
+                text: qsTr("Version: %1").arg(Qt.application.version)
+            }
+
+            Label {
+                text: qsTr("Revision: %1").arg(AppInfo.revision())
+            }
+
+            Label {
+                readonly property string src: "https://github.com/scratchcpp/scratchcpp-player"
+                text: qsTr("Source code: %1").arg("<a href=\"" + src + "\">" + src + "</a>")
+                onLinkActivated: (link)=> Qt.openUrlExternally(link)
+            }
+
+            Label {}
+
+            Label {
+                readonly property int startYear: 2024
+                readonly property string startStr: AppInfo.buildYear() === startYear ? "" : startYear + "-"
+                text: "Copyright © " + startStr + AppInfo.buildYear() + " adazem009"
+            }
+
+            Label {
+                text: qsTr("Published with the GNU General Public License.")
+            }
+        }
+    }
+}