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Meet Qt (Embedded) Yu-Chen Hsueh Sales Engineer Digia USA September 2013 1 © 2013 Digia Agenda • A brief overview of Qt • Platform Integration • UI possibilities • Qt Quick! • Multi-screen approaches with Qt • What’s new in Qt 5.1 • The Road Ahead • Qt and Embedded • Boot To Qt • Boot To Qt – Hands On 3 © 2013 Digia Plc What is Qt? C++ CROSS-PLATFORM APPLICATION AND UI FRAMEWORK Cross- Integrated Cross- Platform Development Platform IDE Class Library Tools 4 © 2013 Digia Plc Qt Powers Industry Leading Software on Desktop ... ADOBE PHOTOSHOP ELEMENTS SKYPE GOOGLE EARTH 5 © 2013 Digia Plc … and embedded Devices ADVANCED INFO CENTERS NETWORK ANALYZERS MEDICAL DEVICES SECURITY AUTOMATION DIGITAL PHOTO FRAMES REFRIGERATORS SET TOP BOXES INDUSTRIAL/UMPCS & COFFEE MACHINES And many, many more ... 6 © 2013 Digia Plc Qt Applications Are Native Applications Qt Application Qt APIs QtGui QtCore QtNetwork QtWebkit QtSql QtMultimedia Qt/Windows Qt/Mac Qt/X11 Qt/Android Windows GDI Cocoa X11 Android NDK Windows Kernel Mac Linux Kernel Android Kernel PC HW Mac HW PC HW Android HW 7 The Qt/Embedded Stack Application QtGui QtCore Qt/Embedded QPA Wayland Windows linuxfb EGL QPA X11 Plugins OS Windows GDI X11 Windows Kernel Linux Kernel HW PC HW PC HW 8 Supported Platforms Desktop Embedded Mobile Windows Embedded Android (5.2, beta 5.1) Windows (Standard/Compact 7) Linux Embedded Linux iOS (5.2, alpha 5.1) Mac OS X INTEGRITY Win8 on ARM (WinRT) Solaris QNX BB10 (5.0) Enterprise UNIX VxWorks Jolla Sailfish 9 © 2013 Digia Qt Cross-Platform Developer Offering: Not just a GUI Toolkit Presentation QtGui QtSVG Qt Quick QtOpenGL QtWebkit QtMultimediaKit Engine QtMobility QtCore APIs QtNetwork Data QtSql QtXML 10 © 2013© 2013 Digia Digia Plc Amazing UI Possibilities 11 © 2013© 2013 Digia Digia Plc 9/17/2013 Match the Purpose Qt provides a set of UI tools and technologies for developers to choose from Different UI approaches are provided to best fit each different UI use case and development environment C++, Cool UI C++, traditional Qt/ C++ QML Qt/ C++ JS, Web C++, customized Java Script Qt/ QML Qt/ C++ C++ QML 12 Match the Purpose Qt provides a set of UI tools and technologies for developers to choose from Different UI approaches are provided to best fit each different UI use case and development environment C++, Cool UI C++, traditional Qt/ C++ QML Qt/ C++ JS, Web Qt Quick C++, customized Java Script Qt/ QML Qt/ C++ C++ QML 13 Build Advanced User Interfaces, Qt Quick • Complete UI creation Kit for developers and designers • Ideal for iterative development of expressive, animated, modern UIs with high performance • QML - CSS & JavaScript like language, same code base for UI designers & developers • Qt Quick UI runtime - Direct access to native APIs, performance boost with C++ 14 © 2012 Digia Plc 15 © 2012 Digia Plc Accessing Hardware Qt Quick UI Qt/C++ Backend Other C++ Code HW Peripherals HW Peripherals 17 © 2013 Digia Plc Enabler for Easy Customization QML t e x t t e x t Declarative UI Design t e x t Qt/C++ Engine / Imperative Logic Data Access 18 N-Screen Approaches – Scalable UI QML t e x t t e x t t e x t Qt/C++ Engine / Data Access 19 N-Screen Approaches – Different UI Designs Mobile Layout Desktop Layout Tablet Layout Car Layout t t t e t e e x e x x t x t t t t e t t e e t x e t x x t t x t t t t e t e e x e x x t x t t t Tablet Layout v.2 t e x t t e x Qt/C++ t t Engine / e x t Data Access Allows incremental development, dynamic replacement of UIs 20 N-Screen Approaches – Mass-Customization Car MF 1 branded t Generic Automotive Layout e x t t e x t t e x t t e x t t e x t Mass-customization by Qt customer Car MF 2 branded t e x t t e x t Qt/C++ t e x Engine / t Data Access 21 Platform Specific Functionality Mobile Layout Desktop Layout Tablet Layout t e t t x e e t x x t t t e t t x e e t x x t t t e t t x e e t x x t t Qt/C++ Engine / Android Data Access functionality Hardware adaptation/optimization, Bindings to native services, Embedded Extra platform specific features Linux on ARM functionality 22 Structure of an N-screen App Blackberry Android iOS Desktop <5% Small screen Medium screen Large screen <5% Common UI (Qt Quick) 20-50% Application logic (C++ or JS) 50-80% Qt 25 Summary • Qt is widely adopted across industries, use cases and platforms • One technology for all the platforms • Level of customization can vary case-by-case • Technical enablers are in place also for taking a true multi-screen approach • Can be adopted in different levels, from one device to a product line or to a whole service across different devices • If targeting a high quantity of different screens, the declarative UI design allows particularly effective software process • Write Once, Deploy Everywhere • Desktop, Embedded, Mobile 26 Qt 5.1 27 © 2013 Digia Qt Quick Controls and Layouts • A UI control library for QML language (Qt Quick) • Toolbox of premade, re-usable UI components. • 5.1 has desktop controls with native look-and-feel • 5.2 will have more, like touch controls, industry specific controls 28 Qt for Android • Qt 5.1: Technology preview • Already very usable • Most of Qt 5.1 working • Exceptions: Parts of Qt Multimedia (Camera), Qt WebKit and Qt Quick Controls • Tooling & Deployment • X86 and ARM tool-chains • Remote debugging • Packaging and signing • Fully supported in Qt 5.2 29 © 2013 Digia Qt for iOS • Qt 5.1: Technology preview • Current status • Qt Core, Qt Gui, Qt Network, Qt Widgets, Qt Sensors, Qt Quick 1 working • Tooling and deployment via XCode • Restrictions • Platform limitations compared to Mac OS X • Currently does not fully support native iOS look & feel • No QtWebKit support, but possible to use native web component instead • Fully supported in Qt 5.2 30 © 2013 Digia Qt Charts 1.3.0 • Charting library completely compatible with Qt 4 and Qt 5 • QWidgets, Qt Quick 1, Qt Quick 2 • Basic chart types • Line, Spline, Area, Bar, Donut • Static and dynamic • New additional chart types • Polar, Boxplot (box-and-whiskers) 31 © 2013 Digia The Road Ahead 32 © 2013 Digia Support More Add-On Modules in 5.x Releases • Qt Location • Qt Compositor (Wayland server) • Qt System Information • Qt NFC • Qt Bluetooth • Qt Feedback • Qt 3D • Qt Quick Controls for Touch • Commercial Qt Quick Controls 33 © 2013 Digia Cloud – Engin.io • Engin.io – Simple way to set up your own cloud • Works well with all major Cloud providers (Amazon AWS, Microsoft Azure, ….) • Create the server with a few clicks • Qt client API • Available September 2013 34 © 2013 Digia Qt Creator • Debugging improvements • New debugging backend (lldb) • CDB stability and performance • Extended Android support • Multi-Window • Stable integration for: • QBS • Diff Viewing 35 © 2013 Digia Plc Qt Quick Designer • Drag & Drop Qt Quick items and components • Support for Qt Quick Controls Available with Qt 5.1 37 © 2013 Digia Enterprise Add-Ons for QML Designer • Property Editor • Signal/Slot connection Editor • Binding Editor • QML Profiler • Spline Editor for PathView 38 © 2013 Digia Plc Visual Studio Add-In • Qt Visual Studio Add-In allows use of Visual Studio for Qt application development • Wizards for creating new Qt C++ projects and classes • Automated build setup for the Meta-Object Compiler(moc), the User Interface Compiler (uic), and the Resource Compiler (rcc) • Import and export of Qt Project {.pro} and Project Include {.pri} files • Integrated Qt resource management • Integrated Qt documentation • Debugging extensions for Qt data types • Enterprise version of the Add-In provides also • Wizards for creating new Qt Quick projects and classes • Qt Quick Application Wizard • QML highlighting in the Visual Studio editor • QML preview directly from Visual Studio 39 © 2013 Digia Plc This Is What It’s All About! Freescale i.MX 6 board running QNX iPad BlackBerry Z10 Two different Android devices with different OS versions 41 © 2013 Digia Plc Qt and Embedded 42 © 2013 Digia Plc 9/17/2013 Tools Integration Qt Project qmake App GCC in Makefile [Linux compiler] Linux [Linux/X11] Qt/C++Qt/C++ codeQt/C++ .pro codecode filesfiles file files qmake App Makefile Cross compiler in [Embedded Target HW Linux] qmake App .gpj MULTI in Other [INTEGRITY] Target HW IDE / Code Editor Native tool chains Qt Creator 43 © 2013 Digia Plc Embedded Options • Cross compilation / integrated tool-chains • Boot To Qt 44 © 2013 Digia Boot To Qt 45 © 2013 Digia Plc Technology preview Boot To Qt - Qt Embedded Development Out-of-the-Box Software stack Google Nexus 7 Android kernel Pre-built Image SDK Qt Creator Qt Software stack Freescale i.MX 6 Installer Cross-compilers Android kernel (Boundary Devices SABRE Lite) Build tools Pre-built Image Qt Qt Embedded Android Software stack Beagle Board xM Android kernel Android kernel Emulator Pre-built Image 46 Why Boot To Qt? 1. Ease of use in getting started with creating embedded devices • Up and running with deployment from day 1 • Out-of-Box build environment • Focus on Qt application creation, not on selecting/setting up software stack • Our light-weight stack is optimized for running Qt! • Professional, enterprise level tooling around Qt libraries • Digia as sole source software/OS provider for your hardware 2. Embedded Android and Embedded Linux supported 47 © 2013 Digia Plc Thank You! qt.digia.com Blog: blog.qt.digia.com Twitter: @Qtcommercial [email protected] © 2012 Digia Plc 9/17/2013 Boot To Qt – Hands On 53 © 2013 Digia Plc What to Bring for Boot to Qt For the full workshop experience, please bring your laptop, Android Nexus 7 and a Micro USB Cable.
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  • Swift.Org, the Open Source Project

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    CHAPTER 1 Swift.org, the Open Source Project n December 3, 2015, Apple made version 2.2 of the Swift programming language open source Osoftware by creating Swift.org and contributing a key set of source code repositories covering the compilers, debuggers, libraries, and more. The Swift.org site ( https://swift.org ) was set up to serve as a central hub for this new community. The site contains documentation, binary downloads, links to the open source repositories on GitHub, mailing lists, and bug reporting mechanisms, as well as continuous integration support to maintain stability across the projects. In this chapter, I will cover what is included on the site as well as some pointers about how to get involved in this exciting community. What’s Included The Swift.org website is the focal point for the Swift language development community. Because the community supporting Swift is composed of people with diverse skill levels and different interests, the site is designed to be a single entry point from which visitors can access the information relevant to their needs. The navigation categories listed on the left-hand side of the Swift.org home page represent major topic areas into which visitors can dive, depending on whether they are developers who want to look at the source code, testers wanting to report a bug, people with general interest who want to sub- scribe to a mailing list, or any of the dozens of possible reasons why they are involved with the language. There are roughly a dozen of these major navigation categories on the Swift.org home page.