How Do Developers Blog?: an Exploratory Study
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Desktop Migration and Administration Guide
Red Hat Enterprise Linux 7 Desktop Migration and Administration Guide GNOME 3 desktop migration planning, deployment, configuration, and administration in RHEL 7 Last Updated: 2021-05-05 Red Hat Enterprise Linux 7 Desktop Migration and Administration Guide GNOME 3 desktop migration planning, deployment, configuration, and administration in RHEL 7 Marie Doleželová Red Hat Customer Content Services [email protected] Petr Kovář Red Hat Customer Content Services [email protected] Jana Heves Red Hat Customer Content Services Legal Notice Copyright © 2018 Red Hat, Inc. This document is licensed by Red Hat under the Creative Commons Attribution-ShareAlike 3.0 Unported License. If you distribute this document, or a modified version of it, you must provide attribution to Red Hat, Inc. and provide a link to the original. If the document is modified, all Red Hat trademarks must be removed. Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert, Section 4d of CC-BY-SA to the fullest extent permitted by applicable law. Red Hat, Red Hat Enterprise Linux, the Shadowman logo, the Red Hat logo, JBoss, OpenShift, Fedora, the Infinity logo, and RHCE are trademarks of Red Hat, Inc., registered in the United States and other countries. Linux ® is the registered trademark of Linus Torvalds in the United States and other countries. Java ® is a registered trademark of Oracle and/or its affiliates. XFS ® is a trademark of Silicon Graphics International Corp. or its subsidiaries in the United States and/or other countries. MySQL ® is a registered trademark of MySQL AB in the United States, the European Union and other countries. -
Current Status of Win32 Gdk Implementation
Current status of Win32 Gdk implementation Bertrand Bellenot - [email protected] Features (recall) ! Same environment on every system : ! Same look and feel on every platform. ! Simplify the code maintenance : ! No need to care about a « windows specific code ». ! Simplify functionality extension : ! No need to implement the code twice, once for windows and once for other OS. ! Only use TVirtualX. Actual Status (recall) ! The actual code uses a modified version of gdk and glib, the GIMP low-level libraries ported on win32. In practice, this means that we only need to link with gdk.lib, glib.lib and iconv.dll as additional libraries (hopefully less in the future). These libraries are under LGPL, so there are no licensing issues in using and distributing them. ! As original version of gdk was not doing everything needed by root (as font orientation!), I did have to slightly modify the original code. Points fixed since last year ! Some characters were not displayed. " ! Some problems with icon’s transparency. " ! The event handling was not perfect. " ! OpenGL was not working. " Events handling architecture (actual) TSystem CINT TGClient TVirtualX Gdk Threads issue ! From gdk developper FAQ : ! Without some major restructuring in GDK-Win32, I don't think there is any chance that GTK+ would work, in general, in a multi-threaded app, with different threads accessing windows created by other threads. ! One problem is that each thread in Windows have its own message queue. GDK-Win32 currently uses just one "message pump" in the main thread. It will never see messages for windows created by other threads. Threads issue ! As gdk is not thread safe, I had to create a separate thread from within the gdk calls are made. -
The GNOME Desktop Environment
The GNOME desktop environment Miguel de Icaza ([email protected]) Instituto de Ciencias Nucleares, UNAM Elliot Lee ([email protected]) Federico Mena ([email protected]) Instituto de Ciencias Nucleares, UNAM Tom Tromey ([email protected]) April 27, 1998 Abstract We present an overview of the free GNU Network Object Model Environment (GNOME). GNOME is a suite of X11 GUI applications that provides joy to users and hackers alike. It has been designed for extensibility and automation by using CORBA and scripting languages throughout the code. GNOME is licensed under the terms of the GNU GPL and the GNU LGPL and has been developed on the Internet by a loosely-coupled team of programmers. 1 Motivation Free operating systems1 are excellent at providing server-class services, and so are often the ideal choice for a server machine. However, the lack of a consistent user interface and of consumer-targeted applications has prevented free operating systems from reaching the vast majority of users — the desktop users. As such, the benefits of free software have only been enjoyed by the technically savvy computer user community. Most users are still locked into proprietary solutions for their desktop environments. By using GNOME, free operating systems will have a complete, user-friendly desktop which will provide users with powerful and easy-to-use graphical applications. Many people have suggested that the cause for the lack of free user-oriented appli- cations is that these do not provide enough excitement to hackers, as opposed to system- level programming. Since most of the GNOME code had to be written by hackers, we kept them happy: the magic recipe here is to design GNOME around an adrenaline response by trying to use exciting models and ideas in the applications. -
The GNOME Census: Who Writes GNOME?
The GNOME Census: Who writes GNOME? Dave Neary & Vanessa David, Neary Consulting © Neary Consulting 2010: Some rights reserved Table of Contents Introduction.........................................................................................3 What is GNOME?.............................................................................3 Project governance...........................................................................3 Why survey GNOME?.......................................................................4 Scope and methodology...................................................................5 Tools and Observations on Data Quality..........................................7 Results and analysis...........................................................................10 GNOME Project size.......................................................................10 The Long Tail..................................................................................11 Effects of commercialisation..........................................................14 Who does the work?.......................................................................15 Who maintains GNOME?................................................................17 Conclusions........................................................................................22 References.........................................................................................24 Appendix 1: Modules included in survey...........................................25 2 Introduction What -
GTK Lesson 3: Containers
CSci493.70 Graphical User Interface Programming Prof. Stewart Weiss Lesson 3: Containers Lesson 3: Containers 1 Container Widgets and Packing When you design an application with a graphical user interface, you put various widgets inside of one another and implicitly dene a hierarchy of what's inside of what. This is a containment hierarchy. Some of the widgets you use have specic purposes, such as buttons, text entry boxes, and menus. If you design your GUI on paper, you draw these widgets where you want them and making them the sizes that you want them to be. However, getting them to be in those specic positions with their specic sizes using a library like GTK+ requires that you use widgets whose primary purpose is for laying out other widgets. These widgets are called container widgets. In Lesson 2, we introduced the GtkContainer class, which is the ancestral class of all container widgets and which we now cover in more detail. Recall that containers can be partitioned into two categories: (1) those that can hold only a single child widget, and (2) those that can hold more than one. Containers that can contain only a single widget are called decorator containers, because their principal purpose is to add functionality and decorative eects to the child widget. Containers that can hold several children are called layout containers, because they are used primarily for laying out the child widgets within their (GDK) windows. Layout containers assign sizes and positions to their children. 1.1 The GtkContainer Class Before we look at their concrete subclasses, we will examine what functionality and properties GtkContainers possess. -
Drawing in GTK+
CSci493.70 Graphical User Interface Programming Prof. Stewart Weiss Drawing in GTK+ Drawing in GTK+ Background In order to understand how to draw in GTK, you rst have to understand something about how GTK draws widgets, because how GTK draws widgets has an important role in how you design your drawing application. An understanding of how GTK draws widgets is also required if you ever plan to build your own custom widgets. Windows and Clipping Most windowing systems are designed around the idea that an application's visual display lies within a rectangular region on the screen called its window. The windowing system, e.g. Gnome or KDE or Explorer, does not automatically save the graphical content of an application's windows; instead it asks the application itself to repaint 1 its windows whenever it is needed. For example, if a window that is stacked below other windows gets raised to the top, then a client program has to repaint the area that was previously obscured. When the windowing system asks a client program to redraw part of a window, it sends an exposure event to the program that contains that window. An exposure event is simply an event sent from the underlying windowing system to a widget to notify it that it must redraw itself. In this context, a "window" means "a rectangular region with automatic clipping", not a top-level application window. Clipping is the act of removing portions of a window that do not need to be redrawn, or looked at the other way, it is determining which are the only regions of a window that must be redrawn. -
Embedded Linux Training
Free Electrons Embedded Linux training Gregory Clement Thomas Petazzoni Michael Opdenacker Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Rights to copy © Copyright 2004-2011, Free Electrons [email protected] Electronic version of this document available on http://free-electrons.com/doc/training/embedded-linux Updates will be available on http://free-electrons.com/doc/training/embedded-linux/ Attribution ± ShareAlike 3.0 Corrections, suggestions, You are free contributions and translations are welcome! to copy, distribute, display, and perform the work to make derivative works Latest update: Feb 14, 2011 to make commercial use of the work Under the following conditions Attribution. You must give the original author credit. Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. License text: http://creativecommons.org/licenses/by-sa/3.0/legalcode Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Linux kernel Linux device drivers Free Electrons Board support code Our services Mainstreaming kernel code Kernel debugging Custom Development System integration -
ERDA User Guide
User Guide 22. July 2021 1 / 116 Table of Contents Introduction..........................................................................................................................................3 Requirements and Terms of Use...........................................................................................................3 How to Access UCPH ERDA...............................................................................................................3 Sign-up.............................................................................................................................................4 Login................................................................................................................................................7 Overview..........................................................................................................................................7 Home................................................................................................................................................8 Files..................................................................................................................................................9 File Sharing and Data Exchange....................................................................................................15 Share Links...............................................................................................................................15 Workgroup Shared Folders.......................................................................................................19 -
System Analysis and Tuning Guide System Analysis and Tuning Guide SUSE Linux Enterprise Server 15 SP1
SUSE Linux Enterprise Server 15 SP1 System Analysis and Tuning Guide System Analysis and Tuning Guide SUSE Linux Enterprise Server 15 SP1 An administrator's guide for problem detection, resolution and optimization. Find how to inspect and optimize your system by means of monitoring tools and how to eciently manage resources. Also contains an overview of common problems and solutions and of additional help and documentation resources. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xii 1 Available Documentation xiii -
Pygtk GUI Programming Pygtk GUI Programming Table of Contents Pygtk GUI Programming
PyGTK GUI programming PyGTK GUI programming Table of Contents PyGTK GUI programming...............................................................................................................................1 Chapter 1. Introduzione....................................................................................................................................2 1.1. Primo approccio...............................................................................................................................2 1.2. Il toolkit PyGTK..............................................................................................................................2 1.3. PyGTK e Glade................................................................................................................................2 1.4. IDE o editor......................................................................................................................................4 1.5. Installazione.....................................................................................................................................6 1.5.1. Installazione su piattaforma GNU/Linux...............................................................................6 1.5.2. Installazione su piattaforma Windows...................................................................................6 1.6. Supporto e help................................................................................................................................6 Chapter 2. I Widget, le classi ed un -
Pygtk 2.0 Tutorial
PyGTK 2.0 Tutorial John Finlay October 7, 2012 PyGTK 2.0 Tutorial by John Finlay Published March 2, 2006 ii Contents 1 Introduction 1 1.1 Exploring PyGTK . .2 2 Getting Started 5 2.1 Hello World in PyGTK . .7 2.2 Theory of Signals and Callbacks . .9 2.3 Events . 10 2.4 Stepping Through Hello World . 11 3 Moving On 15 3.1 More on Signal Handlers . 15 3.2 An Upgraded Hello World . 15 4 Packing Widgets 19 4.1 Theory of Packing Boxes . 19 4.2 Details of Boxes . 20 4.3 Packing Demonstration Program . 22 4.4 Packing Using Tables . 27 4.5 Table Packing Example . 28 5 Widget Overview 31 5.1 Widget Hierarchy . 31 5.2 Widgets Without Windows . 34 6 The Button Widget 35 6.1 Normal Buttons . 35 6.2 Toggle Buttons . 38 6.3 Check Buttons . 40 6.4 Radio Buttons . 42 7 Adjustments 45 7.1 Creating an Adjustment . 45 7.2 Using Adjustments the Easy Way . 45 7.3 Adjustment Internals . 46 8 Range Widgets 49 8.1 Scrollbar Widgets . 49 8.2 Scale Widgets . 49 8.2.1 Creating a Scale Widget . 49 8.2.2 Methods and Signals (well, methods, at least) . 50 8.3 Common Range Methods . 50 8.3.1 Setting the Update Policy . 50 8.3.2 Getting and Setting Adjustments . 51 8.4 Key and Mouse Bindings . 51 8.5 Range Widget Example . 51 9 Miscellaneous Widgets 57 9.1 Labels . 57 9.2 Arrows . 60 9.3 The Tooltips Object . -
GVFS Metadata: Shellbags for Linux
Digital Investigation 16 (2016) 12e18 Contents lists available at ScienceDirect Digital Investigation journal homepage: www.elsevier.com/locate/diin GVFS metadata: Shellbags for Linux Christopher John Lees Greater Manchester Police, DIU, Bradford Park, Bank Street Clayton, Manchester, Greater Manchester M320BL, United Kingdom article info abstract Article history: There are a number of techniques that the perpetrator of an offence may use to hide data. Received 24 February 2015 These techniques include storing data on external devices or within encrypted containers. Received in revised form 17 July 2015 Although there are a number of recorded artefacts for the Windows operating system Accepted 11 November 2015 which may prove this, there is less information for artefacts for the Linux operating system. Available online xxx The Gnome Virtual File System produces files that relate to specific volumes and contain information about files stored within the volume, whether external device or encrypted Keywords: volume. Examination of these files provides the potential to identify the names of files Linux fi Forensic accessed, as well as the last accessed time of the les. This paper establishes some rules of fi fi fi GVFS when a lename is recorded in the metadata les and what data is recorded when the le Encryption is deleted, which can provide potentially useful information. Volume © 2015 Elsevier Ltd. All rights reserved. Gnome Computer Investigation Shellbag Introduction As such, storing encryption on external media such as a pen drive or external hard disk can allow the perpetrator of Computer forensics has become an important part of such offences to hide the device with the encrypted files(s) investigations for a wide variety of crime.