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System & Utilities

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Debugging Tools

System & Utilities

Today I had to repair my most important debugging tool. Here’s the result:

That’s three strands (red, white, black) from a USB-to-serial converter, soldered on to a 3-pole screw-tightened connector. Clamped into that are the serial lines (red, green and blue) which were originally crimped straight to the lines. After a few months of use, the crimping failed and the red cable (RX) broke off.

So I had to fix it, and in the process decided to make it more sturdy, more ugly, but also easier to use.

The three grey wires clamped into the connector are part of a 10-pin flat cable which I scavenged out of a 9-pin serial connector I had left in the box-of-old-parts.

The flatcable, and especially the 10-pin connector at the end, is nice and sturdy for connecting to the headers on single-board-computers, like here:

That’s why I need a serial cable for debugging. The frontmost board is a Pine64+. It runs FreeBSD and ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 22.01.2018 | Прочитано: 141 | Комментарии

About Babe

System & Utilities

I've been working on a small music player named Babe for a while now, it started as an idea of a bare simple music player, and as the time has passed it has become a project I hope to expand beyond a simple music player. Last year I presented the project to the KDE community at Akademy 2017 that took place in Almeria-Spain, I wanted to highlight back then the idea of a multimedia desktop application that was aware of its content by making use of the wide knowledge that could be found on the internet, by making use of a music information retrieval system called Pulpo together with AI techniques.


  
Подробнее | Разместил: KDE News | Дата: 21.01.2018 | Прочитано: 134 | Комментарии

SoK Project – Week 1 & 2

System & Utilities

With all the happiness after being selected for SoK 2018, I was looking forward to start working on my project with whole dedication. My project aims to complete port of a brain-boosting memory activity called “Railroad” (in which kids have to observe the given train and memorize it within given time and then try to rebuild it) from Gtk+ to Qt version. It is a part of project GCompris(a high-quality educational software suite, including a large number of activities for children aged 2 to 10). My mentors are Timothée Giet and Rudra Nil Basu, along with them I’d like to thank a lot to Johnny Jazeix and Divyam Madaan for helping me with my project. My SoK proposal can be found here –> SoK Proposal. And my progress can be tracked at –> Railroad branch.

I started with introducing myself to the GCompris community and discussing my implementation plans with the mentors. My mentors ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 15.01.2018 | Прочитано: 155 | Комментарии

Fancy Terminal Prompt

System & Utilities

By default, the terminal looks as follows on my Linux distribution:

However, if you are working a lot on the terminal, there are a lot of scripts and tricks available in the net that improve the information displayed in the terminal in many ways. For instance, since many many years, I have the following at the end of my ~/.bashrc:

# use a fancy prompt
PS1=\"[\033[01;32m]u@h[\033[00m]:[\033[01;34m]W[\033[00m]\"
PS1=\"$PS1 `if [ $? = 0 ]; then echo -e '[\033[01;32m]:-)';\"
PS1=\"$PS1 else echo -e '[\033[01;31m]:-(' $?; fi`[\033[00m]\"
PS1=\"$PS1 $(__git_ps1 \"(%s)\") $ \"

Once you open a new terminal, then the appearance is as follows:

As you can see, now I have nice colors: The hostname is green, the folder is blue, the return value of the last executed command is a green �� in case of success (exit code = 0), and a red �� in case of errors (exit code != ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 09.01.2018 | Прочитано: 134 | Комментарии

Qt 5.9 on FreeBSD

System & Utilities

Tobias and Raphael have spent the past month or so hammering on the Qt 5.9 branch, which has (finally!) landed in the official FreeBSD ports tree. This brings FreeBSD back up-to-date with current Qt releases and, more importantly, up-to-date with the Qt release KDE software is increasingly expecting. With Qt 5.9, the Elisa music player works, for instance (where it has run-time errors with Qt 5.7, even if it compiles). The KDE-FreeBSD CI system has had Qt 5.9 for some time already, but that was hand-compiled and jimmied into the system, rather than being a “proper” ports build.

The new Qt version uses a new build system, which is one of the things that really slowed us down from a packaging perspective. Some modules have been reshuffled in the process. Some applications depending on Qt internal-private headers have been fixed along the way. The Telegram desktop client continues to be a pain in the butt that way.

Following on from Qt 5.9 there has been some work in getting ready for Clang 6 support; in general the KDE and Qt ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 08.01.2018 | Прочитано: 145 | Комментарии

Retrospectacle

System & Utilities

At the beginning of 2017, I was a programmer (mostly Python, and a little bit of C++) and spent most of my day at my desk, with an IDE open and a cup of coffee at hand. At the end of 2017, I’m a programmer (mostly C++, and a little bit of Python) and spend most of my day at my desk, with an IDE open and a cup of espresso at hand.

At some level of abstraction, not much has changed this year.

Of course, now I spend my entire day working on Free Software, in three different but partly-overlapping communities: KDE, FreeBSD, and Calamares. Basically you can track everything I do each day by looking in the relevant repositories on GitHub (read-only mirrors in the case of FreeBSD and KDE). Inspired by Michael, Krita, Matthieu Gallien (with the this-week-in-Elisa series) and Dominik Haumann, I’ve collected a list of things I did this year, in no particular order:

  • Released two versions of the proprietary application I worked on previously, and quit my job. Started working for ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 01.01.2018 | Прочитано: 133 | Комментарии

Interview with Rositsa Zaharieva

System & Utilities

Could you tell us something about yourself?

My name is Rositsa (also known as Roz) and I’m somewhat of a late blooming artist. When I was a kid I was constantly drawing and even wanted to become an artist. Later on I chose a slightly different path for my education and career and as a result I now have decent experience as a web and graphic designer, front end developer and copywriter. I am now completely sure that I want to devote myself entirely to art and that’s what I’m working towards.

Do you paint professionally, as a hobby artist, or both?

I mainly work on personal projects. I have done some freelance paintings in the past, though. I’d love to paint professionally full time sometime soon, hopefully for a game or a fantasy book of some sort.

What genre(s) do you work in?

I prefer fantasy most of all and anything that’s not entirely realistic. It has to have some magic in it, something from another world. That’s when I ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 25.12.2017 | Прочитано: 149 | Комментарии

Switching Distro’s

System & Utilities

Obviously I still use FreeBSD on the desktop; with the packages from area51 I have a full and modern KDE Plasma environment. We (as in, the KDE-FreeBSD team) are still wrestling with getting the full Plasma 5 into the official ports tree (stalled, as so often it has been, on concerns of backwards compatibility), but things like CMake 3.10.1 and Qt 5.9 are sliding into place. Slowly, like brontosauruses driving a ’57 Cadillac.

In the meantime, I do most of my Calamares development work — it is a Linux installer, after all — in VMs with some Linux distro installed. Invariably — and especially when working on tools that do the most terrible things to the disks attached to a system — I totally break the system, the VM no longer starts at all, and my development environment is interrupted for a bit.

That’s always a good moment to switch distro’s .. since I’m going to spend an hour or so re-invigorating the VM anyway, reminding myself that this time I’ll make a clone and keep snapshots and whatnot, I ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 18.12.2017 | Прочитано: 147 | Комментарии

KDE Edu Sprint 2017

System & Utilities

Two months ago I attended to KDE Edu Sprint 2017 at Berlin. It was my first KDE sprint (really, I send code to KDE software since 2010 and never went to a sprint!) so I was really excited for the event.

KDE Edu is the an umbrella for specific educational software of KDE. There are a lot of them and it is the main educational software suite in free software world. Despite it, KDE Edu has received little attention in organization side, for instance the previous KDE Edu sprint occurred several years ago, our website has some problems, and more.

Therefore, this sprint was an opportunity not only for developers work in software development, but for works in organization side as well.

In organization work side, we discuss about the rebranding of some software more related to university work than for “education” itself, like Cantor and Labplot. There was a wish ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 11.12.2017 | Прочитано: 152 | Комментарии

Syntax Highlighting Checker

System & Utilities

The KTextEditor Framework uses the syntax highlighting files provided by the KSyntaxHighlighting Framework since the  KDE Frameworks release 5.28.

The KSyntaxHighlighting Framework implements Kate’s highlighting system and meanwhile is used in quite some applications (e.g. LabPlot, KDE PIM). What is quite nice is that the KSyntaxHighlighting framework is nicely unit tested. And while we do not have tests for all highlighting files, we still provide some quality assurance through a compile time checker.

How does it work? Well – in former times, Kate loaded all highlighting .xml files from disk (through the KTextEditor framework). This lead to a slow startup over time, since there are >250 .xml files that needed a stat system call at startup.

With the KSyntaxHighlighting Framework, all these xml files are compiled into a Qt resource (qrc file), that then is included into the KSyntaxHighlighting library.

In order to create the Qt resource file, we need to iterate over all available xml files anyways. So what happens is that we take this opportunity and also scan the highlighting files for common mistakes.

As of today, ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 03.12.2017 | Прочитано: 139 | Комментарии

Evolving KDE – The goals are set!

System & Utilities

Since Akademy in Almería we have been going through the process of defining goals for KDE for the next 3 to 4 years. Different ideas were proposed and refined. 10 of them made it into the community-wide vote to select 3 of them. Today I am proud to announce the result based on the 684 submitted votes.

The 3 goals KDE will be focusing on over the next 3 to 4 years are:

  • Top-notch usability and productivity for basic software: We want our users to love our software and enable them to do their day-to-day work hassle-free. As part of this goal we will focus on polishing our basic software so everyone will be delighted to use it. For more details see the proposal.
  • Privacy Software: A central part of KDE’s vision for the future is privacy. As part of this goal we will work on improving privacy-related features, settings and applications all over KDE’s software. Once done KDE software enables and promotes privacy, which is crucial for a free and open society and protecting our users from ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 28.11.2017 | Прочитано: 155 | Комментарии

Improved data fitting in 2.5

System & Utilities

Continuing the introduction of the new features coming soon with the next release of LabPlot (see the previous blogs here and here), we want to share today some news about the developments we did for the data fitting (linear and non-linear regression analysis) in the last couple of months.

Data fitting, one of the most common and frequently used data analysis tasks, got a lot of improvements. As already mentioned in the previous blog, all analysis functions benefited from the recent general UX improvements. Instead of going through the many manual steps, the final fit result can now be quickly produced via the context menu of the data spreadsheet or directly in the plot in the context menu of the data curve:



analyze and plot data context menu

Until now, the fit parameters could in principle take any values allowed by the fit model, which would lead to a reasonable description of the data. However, sometimes the realistic regions for the parameters ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 20.11.2017 | Прочитано: 168 | Комментарии

Latte Dock v0.7.2 arrives in KDE and Kubuntu backports PPA

System & Utilities

Latte Dock, the very popular doc/panel app for Plasma Desktop, has released its new bugfix version 0.7.2. This is also the first stable release since Latte Dock became an official KDE project at the end of August.

 

 

Version 0.7.1 was added to our backports PPA in a previous round of backports for Kubuntu 17.10 Artful Aardvark.

Today that has been updated to 0.7.2, and a build added for Kubuntu 17.04 Zesty Zapus users.

The PPA can be enabled by adding the following repository to your software sources list:

ppa:kubuntu-ppa/backports

or if it is already added, the updates should become available via your preferred update method.

The PPA can be added manually in the Konsole terminal with the command:

sudo add-apt-repository ppa:kubuntu-ppa/backports

and packages then updated with

sudo apt update
sudo apt full-upgrade

Upgrade notes:

~ The Kubuntu backports PPA includes various other backported applications and Plasma releases, so please be aware that enabling the backports PPA for the first time and doing a full ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 13.11.2017 | Прочитано: 142 | Комментарии

Atcore 0.90.2 Binaries

System & Utilities

Release binaries below

Linux (x86_64, AppImage) – rt.click and “Save as”  Make it executable.
SHA256[ae9dde58f38853230be36acb5f2ef6975e4fa90a6ade1e2bef92351f2f01c567]
SHA1[9856db9dc7d1e62669acb4233932cf181d37e034]
MD5[805064ea4951c9b3268d238862b56aef]

Windows(Win7+, portable folder) SHA256[ae025199c1055cedfaf7dfaefe5e1862fb07ca218d66d59b0ec9da152332d596]
SHA1[0bee4054bbec97be2c01891d73ab4b99dbf4f326]
MD5[d610b14c479a7c0136f651c45edc9922]

Mac OSX(osX 10.8+)  SHA256[33c95205be977da0ffa60f7022cf7a965f7c1922b1fbe04e53add641462d5c56]
SHA1[478fdb5e719fbaec8f7c9ce8300cd1075c71d1bf]
MD5[32049e0ff6a02f2f45d29ad890454598]



  
Подробнее | Разместил: Planet KDE | Дата: 06.11.2017 | Прочитано: 104 | Комментарии

Plasma 5.11.2 and other goodies now in Artful backports PPA

System & Utilities

The 2nd bugfix update (5.11.2) of the Plasma 5.11 series is now available for users of Kubuntu Artful Aardvark 17.10 to install via our backports PPA.

Please note that 3 more bugfix releases are scheduled by KDE for Plasma 5.11, so while we feel these backports will be beneficial to enthusiastic adopters, users wanting to use a Plasma release with more stabilisation/bugfixes ‘baked in’ may find it advisable to stay with Plasma 5.10.5 as included in the original 17.10 Artful release.

See the Plasma 5.11 release announcement and the release video below for more about the new features available.

In particular the new Plasma Vault can be installed – Install the plasma-vault package, and restart Plasma to make it available in the system tray. Note that an upstream issue means deletion of vaults must be done manually; see KDE bug 385444 for instructions.

The update also comes with an upgrade to the latest KDE Frameworks 5.39.

Other goodies are also included in the backports PPA:

Kio GDrive – “KIO GDrive is a KIO slave ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 30.10.2017 | Прочитано: 138 | Комментарии

Linux Mint KDE is out, LMDE 3 is in

System & Utilities

In a blog post written Oct 25, the Linux Mint team has announced that Linux Mint will be ending the KDE flavor after 18.3 is released. "In continuation with what's been done in the past, Linux Mint 18.3 will feature a KDE edition, but it will be the last release to do so."


  
Подробнее | Разместил: KDE News | Дата: 27.10.2017 | Прочитано: 116 | Комментарии

Community goal: Modern and Global Text Input For Every User

System & Utilities

A few months ago, I had the opportunity to give a talk on Input Methods in Plasma 5 at Akademy 2017 in lovely Almeria in Spain. If you were interest in my talk but were unable to attend, there's now video available courtesy of the Akademy conference team.


  
Подробнее | Разместил: KDE News | Дата: 24.10.2017 | Прочитано: 164 | Комментарии

Past days in Kdenlive

System & Utilities

Since last update, several missing features & stability update made it to the development branch, you can follow the progress on our 17.12 blocking issues. Main changes include:

  • Keyframes are back in timeline, for example in the volume effect
  • Geometry keyframes available again, for example in transform effect
  • Track effects are reimplemented
  • Initial reimplementation of split audio
  • Fix copy of grouped elements
  • Various crash/bug fixes in keyframes, and timeline context menu

An updated development AppImage is available at (not for use in production):
https://files.kde.org/kdenlive/unstable/kdenlive-alpha5-17.12.AppImage.mirrorlist

We also updated the laste stable AppImage to 17.08.2, you can download it here:
https://files.kde.org/kdenlive/release/kdenlive-17.08.2-x86_64.AppImage.mirrorlist

Our next café will be on monday, 30th of October at 9pm (CET), feel free to join us and share about Kdenlive!


  
Подробнее | Разместил: Planet KDE | Дата: 24.10.2017 | Прочитано: 147 | Комментарии

Top 7 open source terminal emulators for Linux

System & Utilities

Do you spend a good amount of your time at the command line? These terminal emulators will help make it a better experience. Are you a system administrator, Linux power user, or someone who just spends a lot of time at the command line? Chances are your choice of terminal emulator says something about you.


  
Подробнее | Разместил: KDE News | Дата: 19.10.2017 | Прочитано: 148 | Комментарии

Updated Kubuntu 17.10 RC ISOs now available

System & Utilities

Following on from yesterday’s 1st spin of the 17.10 RC images by the ubuntu release team, today the RC images (marked Artful Final on the QA tracker) have been re-spun and updated.

Please update your ISOs if you downloaded previous images, and test as before.

Please help us by testing as much as you have time for. Remember, in particular we need i386 testers, on “bare metal” rather than VMs if possible.

Builds are available from:

http://iso.qa.ubuntu.com/qatracker/milestones/383/builds

the CD image to left of the ISO names being a link to take you to download urls/options.

Take note of the Ubuntu Community ISO testing party on Monday 16th at 15:00 UTC:

https://community.ubuntu.com/t/ubuntu-17-10-community-iso-testing/458

Please attend and participate if you are able. The #ubuntu-on-air IRC channel on irc.freenode.net can be joined via a web client found beneath the live stream on ubuntuonair.com, or of course you can join in a normal IRC client.

Happy testing,

Rik Mills

Kubuntu Developer
Kubuntu Release team


  
Подробнее | Разместил: Planet KDE | Дата: 16.10.2017 | Прочитано: 126 | Комментарии

KTextEditorPreviewPlugin 0.2.0

System & Utilities

KTextEditorPreviewPlugin 0.2.0 has been released.

The KTextEditorPreviewPlugin software provides the KTextEditor Document Preview Plugin, a plugin for the editor Kate, the IDE KDevelop, or other software using the KTextEditor framework.

The plugin enables a live preview of the currently edited text document in the final format, in the sidebar (Kate) or as tool view (KDevelop). So when editing e.g. a Markdown text or an SVG image, the result is instantly visible next to the source text. For the display the plugin uses that KParts plugin which is currently selected as the preferred one for the MIME type of the document. If there is no KParts plugin for that type, no preview is possible.

Download from:
https://download.kde.org/stable/ktexteditorpreviewplugin/0.2.0/src

sha256:
ab54382dfd8e88247b53b72fdd9b259feb7c0266300b604db899edf0828677ae ktexteditorpreviewplugin-0.2.0.tar.xz

Signed with my new PGP key
E191 FD5B E6F4 6870 F09E 82B2 024E 7FB4 3D01 5474
Friedrich W. H. Kossebau
ktexteditorpreviewplugin-0.2.0.tar.xz.sig

Change since 0.1.0

  • Add dropdown menu to toolbar with the main menu of the KParts plugin
  • ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 09.10.2017 | Прочитано: 147 | Комментарии

Evolving KDE – Time to review the goal proposals

System & Utilities

A little over a month ago I asked KDE contributors to submit proposals for goals that KDE should focus on over the next 3 to 4 years. I am very happy with the proposals that were submitted from different parts of the community. A lot of work and thought went into them and they all would make great focus areas for KDE over the coming years.

From today until the end of October we will go into the next phase and refine these proposals. You can help make them ready for the vote in November. Read them and add your thoughts and ideas as a comment to the proposal. What do you like about the proposal? What can you add to the proposal? What isn’t ideal or worth pursuing? Are they ambitious but achievable? Is now the right time to push them forward? Are they specific enough so we know what everyone needs to do to move them forward? Are they bringing us closer to our vision of a world in which everyone has control over their ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 03.10.2017 | Прочитано: 152 | Комментарии

Come dine with the KDE e.V. board in Berlin in October

System & Utilities

As has become tradition in recent years, the KDE e.V. board will have an open dinner alongside its in-person meeting in Berlin, Germany on October 14th, at 7 PM. We know there will be a lot of cool people in town next month, thanks to a KDE Edu development sprint, Qt World Summit , the GNOME Foundation hackfest and probably other events, and you're all invited to drop by and have a chat with us and amongst yourselves - and enjoy good food.


  
Подробнее | Разместил: KDE News | Дата: 30.09.2017 | Прочитано: 247 | Комментарии

KTextEditorPreviewPlugin 0.1.0

System & Utilities

KTextEditorPreviewPlugin 0.1.0 has been released.

The KTextEditorPreviewPlugin software provides the KTextEditor Document Preview Plugin, a plugin for the editor Kate, the IDE KDevelop, or other software using the KTextEditor framework.

The plugin enables a live preview of the currently edited text document in the final format. For the display it uses the KParts plugin which is currently selected as the preferred one for the MIME type of the document. If there is no matching KParts plugin, no preview is possible.

Download from:
https://download.kde.org/stable/ktexteditorpreviewplugin/0.1.0/src

sha256:
21e17a97fe2b942991ce564371ce822564397488847f8d21d7d5b24d4c120796 ktexteditorpreviewplugin-0.1.0.tar.xz

Signed with my new PGP key
E191 FD5B E6F4 6870 F09E 82B2 024E 7FB4 3D01 5474
Friedrich W. H. Kossebau <kossebau@kde.org>
ktexteditorpreviewplugin-0.1.0.tar.xz.sig

Notes

Long term the plan is to merge this plugin into the Kate repository, or some new separate KTextEditor-Plugins repo, ideally already for KDE Applications 17.12.

For now though this plugin is in its own repository to allow an initial independent quick release cycle phase, following the release-often-and-early mantra. With ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 25.09.2017 | Прочитано: 155 | Комментарии

Plasma accessibility updates

System & Utilities

Marco Martin recently posted about some of the improvements in krunner, today I want to show some of the effort into navigating the Plasma panels.

This video shows a user navigating the plasma panel using voice and keyboard. A shortcut focusses the panel, and then one can use tab and cursor keys as normal. In future we will improve our key-focus visual indicators, and allow for richer interaction.

What makes Plasma different to existing apps

Plasma in general has been a sore point with regards to accessibility as it doesn’t follow some of the exact same concepts as a traditional toolkit. Some of these convention breakages are by design, in krunner you wouldn’t want to have to tab to a list of results in order to navigate results with the cursor keys. Unfortunately these changes, if done non-optimally, really conflict with core concepts of focus and screen reader parsing. On top of that, we have the issues of an emerging toolkit, which needs that extra push to get right.

Why is this work useful?

Blind people ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 15.09.2017 | Прочитано: 162 | Комментарии

Last week in Kube

System & Utilities

“Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access to all your mail, contacts, calendars, notes, todo’s and more. With a strong focus on usability, the team works with designers and UX experts from the ground up, to build a product that is not only visually appealing but also a joy to use.”

For more info, head over to: kube.kde.org

  • Fixed scrolling behaviour with a mouse wheel (it used to be very slow).
  • Prepared the 0.4 release.
  • Fixed RE: prefixing for replies.
  • Fixed issue where searching for removed entities would result in a query going through all uids instead of only the ones of a specific type. As this touched storage a “sinksh upgrade” will be required to clean up.
  • Added some missing icons that where symlink targets.
  • Inverted colors on folderview scrollbar to match that area of the UI.
  • Fixed layouting issues with long attachment lists in the composer.

Kube Commits, ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 12.09.2017 | Прочитано: 163 | Комментарии

Konversation 2.x in 2018: New user interface, Matrix support, mobile version

System & Utilities

Konversation is KDE's chat application for communities. No matter whether someone is a newcomer seeking community, a seasoned participant in one, or a community administrator: our mission is to bring groups of people together, allow them to delight in each other's company, and support their pursuit of shared interests and goals.


  
Подробнее | Разместил: KDE News | Дата: 05.09.2017 | Прочитано: 178 | Комментарии

QtLocation 5.9

System & Utilities

With Qt 5.9, the QtLocation module has received a substantial amount of new features, as briefly summarized in the release post. The goal of this post is to provide additional details about what’s now possible with QtLocation 5.9.

Rotating and tilting maps

One long-standing limitation of the built-in tile renderer was the inability to draw rotated or tilted maps and map items. We finally removed this limitation, and in 5.9 maps as well as the map items added to them can be rotated and tilted. This also applies to MapQuickItems, which can be tilted by setting the appropriate zoomLevel value to them. With the support for tilting and rotation come two new dedicated gestures in the gesture area of the map: two fingers rotation, and two fingers vertical drag for tilting.

It is now possible to rotate and tilt maps. Items on it will be transformed accordingly. In this figure a MapQuickItem embedding a QtMultimedia Video element is used to overlay a video of the shore. ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 05.09.2017 | Прочитано: 170 | Комментарии

NGRX Store and State Management

System & Utilities

I have seen a couple of times experienced developers finding NGRX difficult to grasp. That was my experience as well. So I'll try to explain what it is about.

https://gitter.im/ngrx/platform

This is a great chat site for getting assistance. The angular/angular chat is active as well.

The best was to start is to lay out the problem that it solves. The Redux pattern implemented in NGRX is a way to maintain application state.

What is application state? All the data that the application requires to build and render the view over time.

Starting from the view, or Component level in Angular, here is how the data is presented by NGRX.

@Component({
   selector: 'article-view',
   template: `<div ngfor="let a of articlelist$ | async">
                  {{a.author}}{{a.title}}
              </div>`  
})
export class ArticleListView {
   articlelist$ = this.store.select(getArticles);
...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 04.09.2017 | Прочитано: 174 | Комментарии

Finalizing the GSoC project for KStars

System & Utilities

I worked on the KStars during this summer to improve the codebase with C++11 features with Google Summer of Code. I spent the last month to write the first GUI tests for KStars and KStars Lite. KStars Lite can be built and run also on Linux host now although it was developed for Android by a previous GSoC student in 2016. Additional contributions include fixing some bugs found by Clang Sanitizers, usability improvements and templeted FITS decoding. The GSoC period was successful, the goals were reached, but if I would have still more time...


  
Подробнее | Разместил: Planet KDE | Дата: 29.08.2017 | Прочитано: 156 | Комментарии
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