This document summarizes a presentation on Qt Quick and QML. It covers QML concepts like properties, types, binding, and identities. It demonstrates a "Hello World" example in QML. It discusses topics like nested elements, graphical types, text items, anchors, and mouse input. The document contains code examples and screenshots to illustrate QML concepts.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us as we explore the best of QML for mobile, embedded and desktop.
Part I will cover:
- Building Blocks of QML
- Qt Properties
- Declarative Code
In the final webinar in our summer series we will illustrate how the Model/View/Controller design pattern fits in Qt applications, specifically with the item-view objects. We'll present them, the model classes, and how they both interact. The concept will be demonstrated through a Napster/iTunes-like download manager.
This document discusses best practices in Qt Quick/QML. It covers the building blocks of QML like QObject and QQuickItem which inherit from QObject. It describes properties, signals, slots and introspection capabilities. Anchors provide a declarative way to lay out items by attaching them to parent and sibling items, improving performance over dead reckoning layouts. The document promotes using anchors and bindings over procedural JavaScript for layout where possible.
With QML there is a new, fantastic way of creating a rich UI for desktop, mobile, and embedded apps. We will go over briefly the history of QML and how you can harness this new language to make your apps easier and faster to develop. We will go over the basics of QML, signals & slots, ways to protect the QML code and also talk about how to use QML with your C++ code. With QML in your tool belt, making Qt applications is quicker to develop and maintain.
Qt Application Programming with C++ is one of the best Qt QML training and courses in Bangalore India. This workshop is ideal for anyone who want to get started with developing GUI Application using Qt framework. Starting with basics, this workshop covers developing multi-threaded, multimedia and 2D graphics based applications with multiple Do-It-Yourself (DIY) exercises.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for part 3 of our 4 part webinar series where we explore the best of QML for mobile, embedded and desktop.
Part 3 will cover:
C++ / QML Integration
Reusing Existing C++ Code
This presentation and we will explore some of the more complex areas of QML and present tips, tricks, best practices and common areas of error and confusion. The material is based on real-world experience developing customer applications for mobile, embedded and desktop.
Part II covers:
- Anchors
- Creating New Items
- States and Transitions
The model/view design pattern is the standard way of separating UI from business logic, especially when the data exchanged is dynamic. In a series of blog posts released in May, we presented an introduction to model/view design and provided an example of how this pattern is leveraged in Qt applications. In this webinar, we will go more in depth, illustrating model/view with a set of two QML programming examples. The first will consider the simple case where data size remains constant. The second will cover the more common situation where data size is dynamic.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us as we explore the best of QML for mobile, embedded and desktop.
Part I will cover:
- Building Blocks of QML
- Qt Properties
- Declarative Code
In the final webinar in our summer series we will illustrate how the Model/View/Controller design pattern fits in Qt applications, specifically with the item-view objects. We'll present them, the model classes, and how they both interact. The concept will be demonstrated through a Napster/iTunes-like download manager.
This document discusses best practices in Qt Quick/QML. It covers the building blocks of QML like QObject and QQuickItem which inherit from QObject. It describes properties, signals, slots and introspection capabilities. Anchors provide a declarative way to lay out items by attaching them to parent and sibling items, improving performance over dead reckoning layouts. The document promotes using anchors and bindings over procedural JavaScript for layout where possible.
With QML there is a new, fantastic way of creating a rich UI for desktop, mobile, and embedded apps. We will go over briefly the history of QML and how you can harness this new language to make your apps easier and faster to develop. We will go over the basics of QML, signals & slots, ways to protect the QML code and also talk about how to use QML with your C++ code. With QML in your tool belt, making Qt applications is quicker to develop and maintain.
Qt Application Programming with C++ is one of the best Qt QML training and courses in Bangalore India. This workshop is ideal for anyone who want to get started with developing GUI Application using Qt framework. Starting with basics, this workshop covers developing multi-threaded, multimedia and 2D graphics based applications with multiple Do-It-Yourself (DIY) exercises.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for part 3 of our 4 part webinar series where we explore the best of QML for mobile, embedded and desktop.
Part 3 will cover:
C++ / QML Integration
Reusing Existing C++ Code
This presentation and we will explore some of the more complex areas of QML and present tips, tricks, best practices and common areas of error and confusion. The material is based on real-world experience developing customer applications for mobile, embedded and desktop.
Part II covers:
- Anchors
- Creating New Items
- States and Transitions
The model/view design pattern is the standard way of separating UI from business logic, especially when the data exchanged is dynamic. In a series of blog posts released in May, we presented an introduction to model/view design and provided an example of how this pattern is leveraged in Qt applications. In this webinar, we will go more in depth, illustrating model/view with a set of two QML programming examples. The first will consider the simple case where data size remains constant. The second will cover the more common situation where data size is dynamic.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for this webinar to explore the best of QML for mobile, embedded and desktop.
Part IV will cover:
- Dynamic Item Creation
- Keyboard Input Handling
Interacting with the Qt Quick scene graph is a good bonus skill for any Qt developer to have. In this introductory webinar we will present this component: a graphical representation of the Item scene and an alternative method to QML coding. Proper use of the underlying scene graph can save performance at runtime. We will explore how to interact with the scene graph through a simple example and suggest when it is appropriate to use.
The document discusses localization and internationalization with Qt. It covers:
- What internationalization and localization are
- How to localize user interface strings in Qt using functions like tr()
- Managing translations with Qt Linguist, including generating .ts files and loading .qm files at runtime
- Additional localization considerations for Qt Quick/QML apps and advanced topics like cultural differences
How to write multi threaded applications using Qt:
In the slides you'll learn about 3 alternatives, all of which allow running tasks simultaneously in Qt applications, and understand the use cases leading to choosing each.
Qt is a cross-platform application framework for building graphical user interfaces and Qt QML is a declarative language that allows building user interface elements. Qt Creator is an integrated development environment for developing Qt applications. Qt supports developing Android applications that have native look and feel and access device capabilities while being written once and deployed across platforms. Qt applications have large size but provide powerful and native UI libraries and cross-platform capabilities.
QVariant, QObject — Qt's not just for GUI developmentICS
This document summarizes a webinar on Qt's object model. It discusses how Qt's classes can be divided into identity types like QObject that derive from C++ and extend it with features using a meta-object system, and value types like QVariant that use copy-on-write. It covers how QObject is the heart of Qt's object model and includes features like memory management, object properties, introspection, signals and slots, and event handling. It also discusses QVariant's role as a union for common value types, and how to make custom classes use QVariants and properties.
There is ongoing confusion, and some contention, over the right way to use the QThread class. Part of the confusion comes from the uniqueness of QThread, which is significantly different from other threading classes. There are two valid patterns of QThread use, and each pattern is best suited for different use cases. Errors will arise when mixing these two patterns, or applying them inappropriately.
This presentation will look at different patterns of threading in general, and examine in detail the two usage patterns for QThread. This talk will also cover how QThread works inside, how to communicate between threads, provide examples, and point out the pitfalls to avoid.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for this webinar to explore the best of QML for mobile, embedded and desktop.
Part III will cover:
- C++ Backends
- Reusing existing code
- Creating QML Modules
After an overview of Qt and its tools, a Hello World application quickly demonstrates the basic principles.
Qt is mainly famous for its intelligent concepts of signals and slots, which is explained together with examples for how to use widgets (UI controls).
At the end, the foundations of the meta-object system and its implications on memory management are explained.
This module follows up the introduction in the "Software Development with Qt" module, plus the Quickstart slides.
Lessons Learned from Building 100+ C++/Qt/QML DevicesICS
The document discusses lessons learned from building over 100 devices using C++, Qt, and QML. It emphasizes establishing a layered architecture with clear separation of concerns. Key recommendations include identifying risks early, using UX design to define requirements, building prototypes to test difficult components, reusing software wherever possible, and having experienced developers work on each element. The document also provides examples of how these principles were applied to a project building a ventilator user interface.
Qt Application Programming with C++ is one of the best Qt QML training and courses in Bangalore India. This workshop is ideal for anyone who want to get started with developing GUI Application using Qt framework. Starting with basics, this workshop covers developing multi-threaded, multimedia and 2D graphics based applications with multiple Do-It-Yourself (DIY) exercises.
Threads, Events, Signals/Slots provides an overview of multithreaded programming in QT including:
1) QT supports threading through the QThread class and provides thread safe APIs like QMutex. GUI operations are only allowed on the main thread.
2) QT uses an event-based model where events are processed in an event loop. Events can be used for intra-thread and inter-thread communication.
3) Signals and slots provide a type-safe mechanism for loose coupling between objects and allow one-to-many and many-to-one communication. They are mapped to events and processed in the receiving object's thread.
This document provides an overview of QML (Qt Meta/Modeling/Mockup Language) and QtQuick. It discusses installing Qt, why to use QML, what QML and QtQuick are, basic QML types, object attributes in QML, custom properties, signals, alias types, grouped properties, attached properties, global QML objects, property binding, inline JavaScript, importing JavaScript files, connections between signals and slots, components, positioning with Row, Column etc, text fields, states, transitions, models and views, and delegates. It also lists Qt Enterprise components and provides a demo and practice example using Flickr API.
This document provides an overview and introduction to Qt for beginners. It covers the key features of Qt including writing code once to target multiple platforms. The agenda includes a C++ refresher on core concepts like objects, classes and signals/slots. It demonstrates a basic "Hello World" application in both C++ and QML. Core Qt classes covered are containers, iterators, QObject and signals/slots. The document looks ahead to covering more advanced Qt topics in future parts.
Join Lars Knoll and Tuukka Turunen to learn about the all-new Qt 6 with Q&As.
Qt 6 offers you The Productivity Platform for the Future. We want to close the gap between the increasing amount of software requirements and your team’s capacity. That’s why we’ve rearchitected Qt to be more efficient and added productivity-enhancing tools throughout the design, deployment, and development stages.
Qt 6 empowers next-generation user experiences. One tool, one language, and one engine for 2D and 3D graphics with support for Vulkan, Metal, Direct3D, and OpenGL!
Qt 6 enables limitless scalability for your software. Be it on a microcontroller or a supercomputer – those you are using now, and those you will be using in the years to come. Same codebase. Any hardware. Any OS. Bare metal.
Sign up now to join the software development revolution and learn more about:
- How ecosystems innovate each other
- Why Qt 6
- Qt Rendering Hardware Interface (RHI)
- Qt Quick 3D
- Qt Quick Controls 2 desktop styling
- High DPI Support
- New property system and bindings for C++ developers
- Revamped Concurrency APIs
- Networking capabilities
- Platform interaction
- Changes under the hood
- C++17 and CMake
- Operating systems: development hosts and targets
- Qt Creator IDE
- Qt Design Studio 2.0
- Qt for microcontrollers (MCUs)
- Migration support
- Qt 6 roadmap and outlook for the future
Speakers:
- Tuukka Turunen, Head of R&D, The Qt Company
- Lars Knoll, Chief Maintainer, The Qt Company
Presentation on Qt Developer Frameworks for a more technical audience, including the changes in version 4.6 and support for Maemo and Symbian mobile platforms.
1. Qt is a cross-platform application development framework written in C++ that allows developers to write once and deploy applications across desktop and mobile platforms like Windows, Mac, Linux and embedded systems.
2. Qt provides modules for user interfaces, databases, networking, multimedia and more that have a common API design. It extends C++ with macros and introspection.
3. The presentation demonstrated a simple "Hello World" Qt application and introduced Qt Creator as the IDE for Qt development. It also covered signals and slots, stylesheets, deployment and the Qt Mobility APIs for mobile.
The document provides an overview of widgets in Qt, including:
- Common widgets like labels, buttons, text inputs, sliders and organizers
- Layout management using horizontal, vertical, grid and form layouts
- Using Qt Designer for visually designing user interfaces
- Integrating designer forms into code using generated header and class files
- Creating common dialogs like file selection, messages and progress
- Building applications with main windows, menus, toolbars, dock widgets and status bars
This document provides an introduction to Qt Quick, the declarative UI framework in Qt. It discusses key Qt Quick concepts like QML syntax, properties, binding, and user interface composition. It also covers cross-platform development with Qt, the Qt module system, and Qt UI technologies like Qt Quick, Qt Widgets and web/hybrid approaches. Finally, it discusses specific Qt Quick topics like elements, properties, identities, anchors, and user interaction handling.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for this webinar to explore the best of QML for mobile, embedded and desktop.
Part IV will cover:
- Dynamic Item Creation
- Keyboard Input Handling
Interacting with the Qt Quick scene graph is a good bonus skill for any Qt developer to have. In this introductory webinar we will present this component: a graphical representation of the Item scene and an alternative method to QML coding. Proper use of the underlying scene graph can save performance at runtime. We will explore how to interact with the scene graph through a simple example and suggest when it is appropriate to use.
The document discusses localization and internationalization with Qt. It covers:
- What internationalization and localization are
- How to localize user interface strings in Qt using functions like tr()
- Managing translations with Qt Linguist, including generating .ts files and loading .qm files at runtime
- Additional localization considerations for Qt Quick/QML apps and advanced topics like cultural differences
How to write multi threaded applications using Qt:
In the slides you'll learn about 3 alternatives, all of which allow running tasks simultaneously in Qt applications, and understand the use cases leading to choosing each.
Qt is a cross-platform application framework for building graphical user interfaces and Qt QML is a declarative language that allows building user interface elements. Qt Creator is an integrated development environment for developing Qt applications. Qt supports developing Android applications that have native look and feel and access device capabilities while being written once and deployed across platforms. Qt applications have large size but provide powerful and native UI libraries and cross-platform capabilities.
QVariant, QObject — Qt's not just for GUI developmentICS
This document summarizes a webinar on Qt's object model. It discusses how Qt's classes can be divided into identity types like QObject that derive from C++ and extend it with features using a meta-object system, and value types like QVariant that use copy-on-write. It covers how QObject is the heart of Qt's object model and includes features like memory management, object properties, introspection, signals and slots, and event handling. It also discusses QVariant's role as a union for common value types, and how to make custom classes use QVariants and properties.
There is ongoing confusion, and some contention, over the right way to use the QThread class. Part of the confusion comes from the uniqueness of QThread, which is significantly different from other threading classes. There are two valid patterns of QThread use, and each pattern is best suited for different use cases. Errors will arise when mixing these two patterns, or applying them inappropriately.
This presentation will look at different patterns of threading in general, and examine in detail the two usage patterns for QThread. This talk will also cover how QThread works inside, how to communicate between threads, provide examples, and point out the pitfalls to avoid.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for this webinar to explore the best of QML for mobile, embedded and desktop.
Part III will cover:
- C++ Backends
- Reusing existing code
- Creating QML Modules
After an overview of Qt and its tools, a Hello World application quickly demonstrates the basic principles.
Qt is mainly famous for its intelligent concepts of signals and slots, which is explained together with examples for how to use widgets (UI controls).
At the end, the foundations of the meta-object system and its implications on memory management are explained.
This module follows up the introduction in the "Software Development with Qt" module, plus the Quickstart slides.
Lessons Learned from Building 100+ C++/Qt/QML DevicesICS
The document discusses lessons learned from building over 100 devices using C++, Qt, and QML. It emphasizes establishing a layered architecture with clear separation of concerns. Key recommendations include identifying risks early, using UX design to define requirements, building prototypes to test difficult components, reusing software wherever possible, and having experienced developers work on each element. The document also provides examples of how these principles were applied to a project building a ventilator user interface.
Qt Application Programming with C++ is one of the best Qt QML training and courses in Bangalore India. This workshop is ideal for anyone who want to get started with developing GUI Application using Qt framework. Starting with basics, this workshop covers developing multi-threaded, multimedia and 2D graphics based applications with multiple Do-It-Yourself (DIY) exercises.
Threads, Events, Signals/Slots provides an overview of multithreaded programming in QT including:
1) QT supports threading through the QThread class and provides thread safe APIs like QMutex. GUI operations are only allowed on the main thread.
2) QT uses an event-based model where events are processed in an event loop. Events can be used for intra-thread and inter-thread communication.
3) Signals and slots provide a type-safe mechanism for loose coupling between objects and allow one-to-many and many-to-one communication. They are mapped to events and processed in the receiving object's thread.
This document provides an overview of QML (Qt Meta/Modeling/Mockup Language) and QtQuick. It discusses installing Qt, why to use QML, what QML and QtQuick are, basic QML types, object attributes in QML, custom properties, signals, alias types, grouped properties, attached properties, global QML objects, property binding, inline JavaScript, importing JavaScript files, connections between signals and slots, components, positioning with Row, Column etc, text fields, states, transitions, models and views, and delegates. It also lists Qt Enterprise components and provides a demo and practice example using Flickr API.
This document provides an overview and introduction to Qt for beginners. It covers the key features of Qt including writing code once to target multiple platforms. The agenda includes a C++ refresher on core concepts like objects, classes and signals/slots. It demonstrates a basic "Hello World" application in both C++ and QML. Core Qt classes covered are containers, iterators, QObject and signals/slots. The document looks ahead to covering more advanced Qt topics in future parts.
Join Lars Knoll and Tuukka Turunen to learn about the all-new Qt 6 with Q&As.
Qt 6 offers you The Productivity Platform for the Future. We want to close the gap between the increasing amount of software requirements and your team’s capacity. That’s why we’ve rearchitected Qt to be more efficient and added productivity-enhancing tools throughout the design, deployment, and development stages.
Qt 6 empowers next-generation user experiences. One tool, one language, and one engine for 2D and 3D graphics with support for Vulkan, Metal, Direct3D, and OpenGL!
Qt 6 enables limitless scalability for your software. Be it on a microcontroller or a supercomputer – those you are using now, and those you will be using in the years to come. Same codebase. Any hardware. Any OS. Bare metal.
Sign up now to join the software development revolution and learn more about:
- How ecosystems innovate each other
- Why Qt 6
- Qt Rendering Hardware Interface (RHI)
- Qt Quick 3D
- Qt Quick Controls 2 desktop styling
- High DPI Support
- New property system and bindings for C++ developers
- Revamped Concurrency APIs
- Networking capabilities
- Platform interaction
- Changes under the hood
- C++17 and CMake
- Operating systems: development hosts and targets
- Qt Creator IDE
- Qt Design Studio 2.0
- Qt for microcontrollers (MCUs)
- Migration support
- Qt 6 roadmap and outlook for the future
Speakers:
- Tuukka Turunen, Head of R&D, The Qt Company
- Lars Knoll, Chief Maintainer, The Qt Company
Presentation on Qt Developer Frameworks for a more technical audience, including the changes in version 4.6 and support for Maemo and Symbian mobile platforms.
1. Qt is a cross-platform application development framework written in C++ that allows developers to write once and deploy applications across desktop and mobile platforms like Windows, Mac, Linux and embedded systems.
2. Qt provides modules for user interfaces, databases, networking, multimedia and more that have a common API design. It extends C++ with macros and introspection.
3. The presentation demonstrated a simple "Hello World" Qt application and introduced Qt Creator as the IDE for Qt development. It also covered signals and slots, stylesheets, deployment and the Qt Mobility APIs for mobile.
The document provides an overview of widgets in Qt, including:
- Common widgets like labels, buttons, text inputs, sliders and organizers
- Layout management using horizontal, vertical, grid and form layouts
- Using Qt Designer for visually designing user interfaces
- Integrating designer forms into code using generated header and class files
- Creating common dialogs like file selection, messages and progress
- Building applications with main windows, menus, toolbars, dock widgets and status bars
This document provides an introduction to Qt Quick, the declarative UI framework in Qt. It discusses key Qt Quick concepts like QML syntax, properties, binding, and user interface composition. It also covers cross-platform development with Qt, the Qt module system, and Qt UI technologies like Qt Quick, Qt Widgets and web/hybrid approaches. Finally, it discusses specific Qt Quick topics like elements, properties, identities, anchors, and user interaction handling.
The document provides an overview of getting started with writing Ubuntu apps using QML. It discusses QML structure and syntax, importing modules, creating components, binding property values, signals and slots, animation, states and transitions, layouts, and calling between QML and C++. Key topics covered include declaring objects and properties in QML, nesting objects, importing functionality, reusable components, updating properties automatically through binding, connecting signals to slots, animating property changes, and managing visual states of user interfaces. The document is a technical introduction to building the graphical user interface and logic of apps using the QML language on Ubuntu.
This document provides an agenda and overview for a presentation on doing more with Qt for beginners. The presentation covers advanced topics like using Qt Creator, model/view programming, localization, integrating QML and C++, best practices, tips and tricks. It also discusses next steps like exploring examples, documentation, tutorials, coding practice projects and getting involved with the Qt community through mailing lists and code reviews. The document concludes by inviting audience questions for a future Q&A session on Qt.
This document discusses creating custom Qt Quick components for modern user interfaces. It covers creating custom components as QML files or C++ classes, handling multi-touch input, adding animations and effects, leveraging OpenGL for performance, and accessing sensors like the accelerometer. The presentation aims to show developers how to build polished UIs that meet users' expectations for touch, graphics acceleration and responsiveness.
The document discusses graphics programming and OpenGL. It introduces OpenGL, describing it as a hardware-independent interface consisting of over 700 commands. It outlines the OpenGL API, including primitive functions, attribute functions, and viewing functions. It also covers OpenGL primitives like points, lines, and polygons, as well as attributes like color. It explains orthographic and two-dimensional viewing in OpenGL.
AutoCAD is a computer-aided drawing application used for creating blue-prints for buildings, Create a bridges and computer chips. CAD is mainly used by draftsman, although engineer, surveyors and architecture, may need to use the software application.
Necessitas - Qt on Android - from FSCONS 2011Johan Thelin
This document provides an overview of Qt and its capabilities on different platforms including desktop, embedded devices, and Android. It discusses Qt's cross-platform abilities, its use of backends and portability layers to support new platforms, and its growing adoption on devices through projects like Necessitas which ports Qt to Android. Examples are given of building user interfaces with QtQuick and integrating C++ and QML.
Apache Cassandra Lunch #103: Cassandra Cluster Architecture in UML and the Az...Anant Corporation
In Cassandra Lunch #103, Nicholas Brackley will discuss how to connect to an Azure Digital Twin resource, view the models in Azure’s environment, and investigate the functions available using the DTDL resources on Azure’s platform
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CL_Architecture of Cassandra Data Processing.pptxNicholasBrackley
This document discusses the architecture of a Cassandra cluster using UML and Azure Digital Twin Domain Language (DTDL). It covers the three layers of architecture - functional, generic physical, and specific physical. The functional architecture defines the concepts and operations in the cluster. The generic physical architecture shows the major services and structural divisions. The specific physical architecture selects services and deploys them to infrastructure. It also discusses digital twins, how Azure Digital Twins Explorer can be used to create and query models, and limitations of the DTDL language. There is a demonstration of creating room and floor models to establish relationships.
Poďme sa porozprávať prečo sú najväčší poskytovatelia webových služieb tak úspešný, aké technológie používajú, čo sú to tie mikroservisy a ako do toho všetkého zapadá nový OpenShift 3.
Jakub je vývojár OpenShift platformy, open-source nadšenec, ktorý okrem programovania v rozličných jayzkoch ako Go, Ruby, JavaScript nemá problém ani s grafikou a designom.
2014 03-25 - GDG Nantes - Web Components avec PolymerHoracio Gonzalez
Web Components are a W3C standard for building reusable custom elements with encapsulated styles and markup. They include features like templates for reusable markup, shadow DOM for encapsulation, custom elements for defining new types of elements, and imports for loading elements from external files. Frameworks like Polymer and X-Tags provide polyfills to bring these features to browsers that don't natively support them yet. Web Components allow developers to build encapsulated, reusable custom UI elements and enable new patterns for component-based development.
Design is at the core of every project Aten takes on. We believe good design starts with a good content strategy. Join Aten’s Joel Steidl, Lead Architect, and Christine Coughlan, Information Architect, as they share practical tips for breaking down and organizing content for projects of any size.
Starting with a well-thoughtout architecture leads to flexibility in design. Creating custom content types assembled from distinct fields allows content to adapt appropriately to different contexts. Joel and Chris will explain how breaking content into smaller pieces can enhance your design and create content that adapts to different views and devices. They will share case studies to reinforce the theory and practice behind adaptive content and best practices for implementing in Drupal and other platforms.
The document discusses using Blender for architecture and building information modeling (BIM). It outlines how Blender could be improved to better support BIM workflows through the use of parametric components, reference planes, adaptive components, dimension tools, view creation and layout engines, online libraries, and automatic level of detail. The document argues that these features would optimize workflows, increase flexibility, and make Blender more competitive with commercial BIM software.
A scene graph is a general data structure commonly used by vector-based graphics editing applications and modern computer games, which arranges the logical and often (but not necessarily) spatial representation of a graphical scene. Examples of such programs include Acrobat 3D, Adobe Illustrator, AutoCAD, CorelDRAW, OpenSceneGraph, OpenSG, VRML97, X3D, Hoops and Open Inventor.
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for part 2 of our 4 part webinar series where we explore the best of QML for mobile, embedded and desktop.
Part 2 will cover:
Creating New Items
States and Transitions
Dynamic Creation of Items
Qt Quick/QML brings designers and developers together to create and collaborate. QML is a collection of technologies that can build modern and fluid interfaces for applications – quickly. Join us for part 2 of our 4 part webinar series where we explore the best of QML for mobile, embedded and desktop.
Part 2 will cover:
Creating New Items
States and Transitions
Dynamic Creation of Items
A quick-start quide to network programming in Qt. The related toy-code can be access from the website http://kusemanohar.wordpress.com/2014/03/26/qt-network-programming/
If you are looking for a Qt tutorial (GUI), look here : http://kusemanohar.wordpress.com/2012/08/19/qt-beginners-tutorial/
Similar to Qt for Beginners Part 3 - QML and Qt Quick (20)
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
A Deep Dive into Secure Product Development Frameworks.pdfICS
We tackle the question of what is a SPDF for medical device cybersecurity. We look to provide actionable advice that clarifies implementation, and you can apply in your day-to-day tasks.
The Real-World Challenges of Medical Device Cybersecurity- Mitigating Vulnera...ICS
A great deal of attention in medical devices has shifted towards cybersecurity with the ratification of section 524B of the FD&C act. This new law enables the FDA to enforce cybersecurity controls in any medical device that is capable of networked communications or that has software. In this webinar we will recap the process for managing vulnerabilities, identify categories of vulnerabilities and solutions and more.
Practical Advice for FDA’s 510(k) Requirements.pdfICS
Don’t miss this important webinar with partners BG Networks and Trustonic, which serves as a roadmap for medical device manufacturers to navigate the complex landscape of FDA requirements and implement effective cybersecurity measures.
Accelerating Development of a Safety-Critical Cobot Welding System with Qt/QM...ICS
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Graphical User Interfaces are so pervasive and have so many different design intents that it can be hard to see the norms and evolution of norms being applied over the past couple of decades. In medical devices, more than most, tradeoffs between safety, effectiveness and pleasure-to-use, dominate the design efforts.
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Much focus and debate has been applied to paradigms of “simple yet effective” in GUI design. The most commonly cited ideals in the Apple eco-system and skeuomorphic design concern themselves with the novice user and technology adoption. But not all products are designed for the novice user.
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For UIs that expose advanced or unstructured feature sets to the user, the normative approach has been to compromise on the simplicity to extend the functionality. But such an approach can be incremental and muddled where a better approach might be cogent redesign.
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OpenMetadata Community Meeting - 5th June 2024OpenMetadata
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AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI AppGoogle
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See My Other Reviews Article:
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(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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Software Engineering, Software Consulting, Tech Lead, Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Transaction, Spring MVC, OpenShift Cloud Platform, Kafka, REST, SOAP, LLD & HLD.
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Deuglo follows seven steps methods for delivering their services to their customers. They called it the Software development life cycle process (SDLC).
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Feasibility Study — after completing the requirement process they move to the design phase.
Design — in this phase, they start designing the software.
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Testing — in this phase when the coding of the software is done the testing team will start testing.
Installation — after completion of testing, the application opens to the live server and launches!
Maintenance — after completing the software development, customers start using the software.
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Drona Infotech is one of the Best Mobile App Development Company In Noida Maintenance and ongoing support. mobile app development Services can help you maintain and support your app after it has been launched. This includes fixing bugs, adding new features, and keeping your app up-to-date with the latest
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Need for Speed: Removing speed bumps from your Symfony projects ⚡️Łukasz Chruściel
No one wants their application to drag like a car stuck in the slow lane! Yet it’s all too common to encounter bumpy, pothole-filled solutions that slow the speed of any application. Symfony apps are not an exception.
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1. Qt For Beginners - Part 3
QML and Qt Quick
Eric Magnuson, Qt Consultant
Integrated Computer Solutions
Visit us at http://www.ics.com
Watch the video: http://bit.ly/qt-beginners-qml-quick
Copyright 2016, Integrated Computers Solutions, Inc.
This work may not be reproduced in whole or in part without the express written consent of
Integrated Computer Solutions, Inc.
1
2. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
2
4. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
4
5. What is QML?
Declarative language for User Interface structure
● Describes the user interface
○ What items look like
○ How items behave
● UI specified as tree of QML structures with properties
○ Elements and identities
○ Properties and property binding
5
6. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
6
8. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
8
9. Properties
Objects are described by properties
● Simple name-value definitions
○ width, height, color, ...
○ With default values
○ Each has a well-defined type
○ Separated by semicolons or line breaks
● Used for
○ Customizing their appearance
○ Changing their behavior
9
10. Types of Properties
● Standard properties can be given values:
Text {
text: "Hello world"
height: 50
}
● Grouped properties keep related properties together
Text {
font.family: "Helvetica"
font.pixelSize: 24
}
● Attached properties are applied to QML structures
TextInput {
text: "Hello world"
KeyNavigation.tab: nextInput
}
○ KeyNavigation.tab is not a standard property of TextInput
○ Is a standard property that is attached to Items
● Custom properties can be added to any QML type
Rectangle {
property real mass: 100.0
}
10
11. Binding Properties
import QtQuick 2.0
Item {
width: 400; height: 200
Rectangle {
x: 100; y: 50
width: height * 2; height: 100
color: "lightblue"
}
}
● Properties can contain expressions
○ See above: width is twice the height
● Not just initial assignments
● Expressions are re-evaluated when needed
11
12. Identifying QML Structures
The id defines an identity of a QML structure
● Lets other QML structures refer to it
○ For relative alignment and positioning
○ To access or modify an Item's properties
○ To re-use common structures (e.g., gradients, images)
● Used to create relationships between structures
● id is not a property
○ Not stored in the QObject with other properties
○ More like a "label"
○ A single Item can have different identities in other
files/scopes.
● parent is a special id referring to the relative
parent structure
12
13. Using Identities
Text {
id: title
x: 50; y: 25
text: "Qt Quick"
font.family: "Helvetica"
font.pixelSize: 50
}
Rectangle {
x: 50; y: 95; height: 5
width: title.width
color: "green"
}
● Text item has the identity, title
● width of Rectangle bound to width of title
● Try using TextInput instead of Text
13
14. Methods
● Most features are accessed via properties
● Methods are also used, to perform actions
○ TextInput has a selectAll() method
○ Timer has start(), stop() and restart() methods
○ Particles has a burst() method
● All methods are public in QML
● Other methods are used to convert values between
types:
○ Qt.formatDateTime(datetime, format)
○ Qt.md5(data)
○ Qt.tint(baseColor, tintColor)
14
15. Property values can have different types:
● Numbers (int and real): 400 and 1.5
● Boolean values: true and false
● Strings: "Hello Qt"
● Constants: AlignLeft
● Lists: [ ... ]
○ Lists with one item can be written as just the item itself
● Scripts:
○ Included directly in property definitions
● Other types:
○ colors, dates, times, rects, points, sizes, 3D vectors, ...
○ Usually created using constructors
Basic Types
15
16. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
16
17. Why use nested items, anchors and components?
● Concerns separation
● Visual grouping
● Pixel perfect items placing
and layout
● Encapsulation
● Reusability
● Look and feel changes
17
18. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
18
22. Images
● Represented by the Image class
● Refer to image files with the source property
○ Using absolute URLs or relative to the QML file
import QtQuick 2.0
Rectangle {
width: 400; height: 400
color: "black"
Image {
x: 150; y: 150
source: "../images/rocket.png"
}
}
○ width and height are obtained from the image file
● Can be transformed
○ Scaled, rotated
○ About an axis or central point
22
23. Gradients
Define a gradient using the gradient property:
● As Gradient containing GradientStop values, each with
○ A position: a number between 0 (start point) and 1 (end point)
○ A color
● The start and end points are on the top and bottom edges of the item
● Gradients override color definitions
import QtQuick 2.0
Rectangle {
width: 400; height: 400
gradient: Gradient {
GradientStop {
position: 0.0; color: "green"
}
GradientStop {
position: 1.0; color: "blue"
}
}
}
● Alternative to gradients: A simple background image.
23
24. ● Create border using part of an image:
○ Corners (regions 1, 3, 7, 9) are not scaled
○ Horizontal borders (2 and 8) are scaled according to horizontalTileMode
○ Vertical borders (4 and 6) are scaled according to verticalTileMode
○ Middle (5) is scaled according to both modes
● There are 3 different scale modes
○ Stretch: scale the image to fit to the available area.
○ Repeat: tile the image until there is no more space.
○ Round: like Repeat, but scales the images down to ensure that the last
image is not cropped
BorderImage {
source: "content/colors.png"
border { left: 30; top: 30; right: 30; bottom: 30; }
horizontalMode: BorderImage.Stretch
verticalMode: BorderImage.Repeat
...
}
Border Images
24
25. ● Introduction
● Qt Quick Hello World
● QML Concepts
● Composing User Interfaces
● Nested Elements
● Graphical Types
● Text Items
Agenda
25
26. Text Items
import QtQuick 2.0
Rectangle {
width: 400; height: 400
color: "lightblue"
Text {
x: 100; y: 100
text: "Qt Quick"
font.family : "Helvetica"
font.pixelSize : 32
}
}
● Width and height determined by the font metrics and text
● Can also use use HTML tags in the text:
"<html><b>Qt Quick</b></html>"
26
27. import QtQuick 2.0
Rectangle {
width: 400; height: 400 color: "lightblue"
TextInput {
x: 50; y: 100; width: 300
text: "Editable text"
font.family : "Helvetica" ; font.pixelSize : 32
}
}
● No decoration (not a QLineEdit widget)
● Gets the focus when clicked
○ Need something to click on
● text property changes as the user types
Text Input
27
29. Anchors
● Used to position and align items
● Line up edges or central lines of items
● anchors, an attached property, can specify
○ A position in another item: (centerIn, fill)
○ An AnchorLine of another item: (left, top)
AnchorLines:
29
30. import QtQuick 2.0
Rectangle {
width: 400; height: 400
color: "lightblue"
id: rectangle1
Text {
text: "Centered text" ; color: "green"
font.family : "Helvetica" ; font.pixelSize : 32
anchors.centerIn : rectangle1
}
}
● anchors.centerIn centers the Text item in
the Rectangle
○ Refers to an Item, not an AnchorLine
anchors.centerIn
30
31. import QtQuick 2.0
Rectangle {
// The parent element
width: 400; height: 400
color: "lightblue"
Text {
text: "Centered text" ; color: "green"
font.family : "Helvetica" ; font.pixelSize : 32
anchors.centerIn : parent
}
}
● Each item can refer to its parent Item
○ Using the parent ID
● Can refer to ancestors and named children of
ancestors
Anchors and Parent
31
32. Connecting AnchorLines Together
import QtQuick 2.0
Rectangle {
width: 300; height: 100
color: "lightblue"
Text {
y: 34
text: "Right-aligned text" ; color: "green"
font.family : "Helvetica" ; font.pixelSize : 32
anchors.right : parent.right
}
}
● AnchorLines must be parallel
○ right to left but not bottom
● AnchorLines of other items are referred to directly:
○ Use parent.right, not parent.anchors.right
32
33. Margins
● Used with anchors to add space
● Specify distances
○ In pixels
○ Between Items connected with anchors
33
35. Hints and Tips – Anchors
● Anchors can only be used with parent and sibling
items
● Anchors work on constraints
○ Some items need to have well-defined positions and sizes
○ Items without default sizes should be anchored to fixed or well-
defined items
● Anchors creates dependencies on geometries of
other items
○ Creates an order in which geometries are calculated
○ Avoid creating circular dependencies
■ e.g., parent → child → parent
● Margins are only used if the corresponding
anchors are used
○ e.g., leftMargin needs left to be defined
35
36. Strategies for Use – Anchors
Identify Items with different roles in the user interface:
● Fixed items
○ Make sure these have id defined
○ Unless these items can easily be referenced as parent items
● Items that dominate the user interface
○ Make sure these have id defined
● Items that react to size changes of the dominant
items
○ Give these anchors that refer to the dominant or fixed items
36
38. QML Types
● Item is the base type for Visible QML objects
○ Has a position, dimensions
○ Usually used to group other visual Items
○ Often used as the top-level Item
○ Rectangle, Text, TextInput, ...
● Non-visual structures also exist:
○ State, Transition, ...
○ ListModel, ListElement, Path, ...
○ Gradient, Timer, ...
● QQuickItem extends QObject and thus, has properties
○ QML Objects can be extended with custom properties from C++
or QML
38
40. Qt Quick Controls
● A set of controls to build entire user interfaces
in Qt Quick
● Originally designed to provide a set of ready to
use components for traditional desktop
applications
○ Application Windows, Navigation and Views, Controls,
Menus
○ Layouts
○ System and Theme integration
● Idea and design extensible to touchscreen
applications
40
41. Qt Quick Controls
● Platforms supported include Windows, OS X,
Android, Linux and iOS
● Qt Quick Controls 1 are designed for desktop
platforms and look like native widgets
● Qt Quick Controls 2 (aka Qt Labs Controls) are
designed for embedded platforms and are
lighter weight
● Controls have similar APIs
41
43. Mouse Areas
Mouse areas define parts of the screen where cursor
input occurs
● Placed and resized like ordinary items
○ Using anchors if necessary
● Two ways to monitor mouse input:
○ Handle signals
○ Dynamic property bindings
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46. Mouse Area Hints and Tips
● A mouse area only responds to its
acceptedButtons
○ The handlers are not called for other buttons, but
○ Any click involving an allowed button is reported
○ The pressedButtons property contains all buttons
○ Even non-allowed buttons, if an allowed button is also
pressed
● With hoverEnabled set to false
○ containsMouse can be true if the mouse area is clicked
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48. Touch Events
QML types that already recognize Touch events:
● Single-touch (MouseArea)
● Multi-touch (MultiPointTouchArea)
● Gestures:
○ Swipe (Flickable, ListView)
○ Pinch (PinchArea)
○ Tap and Hold (MouseArea onPressAndHold)
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49. Multi-Touch Events
MultiPointTouchArea {
anchors.fill : parent
touchPoints : [
TouchPoint { id: point1 }, TouchPoint { id: point2 }, TouchPoint { id: point3 }
]
}
TouchPoint properties:
● int x
● int y
● bool pressed
● int pointId
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50. MultiPointTouchArea Signals
● onPressed(list<TouchPoint> touchPoints) onReleased(…)
touchPoints is list of changed points.
● onUpdated(…)
Called when points is updated (moved) touchPoints is list of changed
points.
● onTouchUpdated(…)
Called on any change touchPoints is list of all points.
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51. MultiPointTouchArea Signals
● onGestureStarted(GestureEvent gesture)
Cancel the gesture using gesture.cancel()
● onCanceled(list<TouchPoint> touchPoints)
Called when another Item takes over touch handling.
Useful for undoing what was done on onPressed.
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52. Swipe Gestures
● Built into Flickable, ListView
● snapMode: ListView.SnapOneItem
The view settles no more than one item away from the first visible item at
the time the mouse button is released.
● orientation: ListView.Horizontal
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54. Pinch Gestures
● Signals for manual pinch handling
○ onPinchStarted(PinchEvent pinch)
○ onPinchUpdated(PinchEvent pinch)
○ onPinchFinished()
● PinchEvent properties:
○ point1, point2, center
○ rotation
○ scale
○ accepted
Set to false in the onPinchStarted handler if the gesture should
not be handled
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56. Keyboard Input
Basic keyboard input is handled in two different
use cases:
● Accepting text input
○ TextInput and TextEdit
● Navigation between Items
○ Changing the focused Item
○ Directional (arrow keys), tab and backtab
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57. Raw Keyboard Input
● Raw key input can be handled by items
○ With predefined handlers for commonly used keys
○ Full key event information is also available
● The same focus mechanism is used as for
ordinary text input
○ Enabled by setting the focus property
● Key handling is not an inherited property of items
○ Enabled using the Keys attached property
● Key events can be forwarded to other objects
○ Enabled using the Keys.forwardTo attached property
○ Accepts a list of objects
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