Thinking Out of the Box

Posts Tagged ‘XAML’

Multi-platform mobile software development: Qt instead of Xamarin

Jörg Preiß
Jörg Preiß
February 28th, 2017

Microsoft is accessing the field of WPF platform independence with Xamarin Forms. However, there has for a long time been an existing framework that runs on Windows, MacOS, Linux and starting with version 5 on iOS, Android, Sailfish OS and other operating systems – without re-implementation: Qt.

LISTING 1: MAIN.CPP

 

Qt has been around since 1992. For a long time, the company Trolltech distributed the framework commercially. There was a free version for the Linux desktop KDE that later was licensed under GPL. The two versions differed in the availability of certain modules. Starting with version 4.5 in 2009, the LGPL (GNU Lesser General Public License) was added. The current version 5.x is available in commercial and free versions as well. The rights are currently owned by The Qt Company.

Qt development was distinguished by the signal/slot principle. While other frameworks still used events, this already was an implementation of the publish-subscribe pattern. A button provides the clicked() signal, which view components can bind to a slot onClicked().

Version 4.7 introduced the Qt Markup Language, QML. While designers previously generated the completed source code, now the interface could be described in a JSON-like language. On-screen elements can be manipulated with JavaScript, values and lists can be bound. The framework achieved an architecture called model-view-delegate. Version 5.6 was used for this article. read more…

Establishing an HMI Styleguide in a Company – Part 2

Thomas Immich

The first part of this article was about the treacherous intuitiveness of establishing an HMI styleguide based on a Corporate Design (CD) styleguide, and why this decision is risky: unlike a CD styleguide an HMI styleguide has to work for software engineers as well as visual designers. Also, this form of documentation is too rigid for a dynamic modern HMI. The most important insight: an HMI styleguide cannot be the sole basis for developing a consistent, aesthetic and intuitive HMI. Looking back on many years of big HMI design projects and speaking as a UX consultant I can say: only a combination of tools and processes will lead to success.

TRUMPF-Centigrade-HMI-Styleguide

Figure 1: Centigrade is supporting TRUMPF to establish a company-wide HMI styleguide.

read more…

From windows to tiles: Contrasting WinRT´s UI framework with WPF – Another case study

Philip Schäfer

A while back, we have published a small case study illustrating our experiences gained in the course of porting an existing WP7-based application to WinRT. As we are continuously growing our competencies regarding WinRT development, we were able to identify a bunch of further differences between WinRT XAML and WPF XAML (as well as Silverlight or Windows Phone 7.X). In this blog post, we want to introduce you to some further prominent differences as well as important characteristics of the WinRT UI Framework that differentiate this API from WPF. Specifically, we will have a look at Bindings, Commands and DependencyProperties.
read more…

From windows to tiles: Porting a Windows Phone 7 app to Windows Runtime – A small case study

Philip Schäfer

I. Setting

To begin with, the application we intended to port as a first get-in-touch with Windows RT (also referred to as Windows Runtime, WinRT) is a small, Windows Phone 7 based soccer game leveraging the mightiness of Silverlight as a subset of the Windows Presentation Foundation (WPF). Therefore, the game´s entire frontend had been designed exclusively using Silverlight XAML and related concepts. Furthermore, the applied architecture strongly follows MVVM (Model-View-ViewModel) principles targeting a strict separation of user interface and application logic. read more…

Introducing WPF – Experiences of a former Windows Forms developer

Jochen Maurer

Have you ever thought about switching from Windows Forms (WinForms) to WPF seriously? Try something new and stop to develop along the old well known patterns? To be honest until a few months ago, I haven’t had any thoughts about making a transition. I was very familiar with Windows Forms and WPF would have been something I would have to learn from scratch. So it was only a test project and my applications remained Windows Forms applications. So, when I joined Centigrade earlier this year, after working as a developer for nearly 15 years in the financial industry, Centigrade made the transition to WPF long ago. Just take a look at related blog articles on our website! My colleagues in the field of design engineering are working for several years with WPF. Especially younger designers and design engineers only knew Windows Forms from their study – if at all. They never worked with it in practice. Many companies already use WPF, but despite the fact that already the fourth version of the technology is out lot of them are still in the evaluation phase. From my own experience, I can only report – it can even be worse. Especially, in the financial sector applications with a rather boring look and feel are created until today. Yet, things could be so much more appealing…

So a new chapter started in my programming career. With a healthy dose of skepticism, I joined my first WPF Project. I was hooked immediately. I have collected some of my experiences and summarized them within this article. read more…

Resolution Independent Icon Design – Part 4: Modern Tool Support

Thomas Immich

The previous part of this series outlined why it is not possible to just create one single vector-based instance of an icon to scale it to any desired size. This part raises the question, on the one hand, what tool support would need to exist in the future in order to serve an icon designer’s everyday work adequately and, on the other hand, what tool support already exists to make his life at least a bit easier in the present times.
read more…

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