What is tdj4?------------The letters in "tdj4" stand for "The Daily Journal". It is a PIM program, andis also the name of the binary executable. It is written using the Qt toolkit fromwww.qt.io.This is version 4-0.1.More information below, if you still want to read on.What does PIM mean?-------------------Personal Information Manager (I think), a program which manages daily notes,appointments, alarms, to-do lists, contacts, addresses, etc.What can it do, in its present form?------------------------------------If you are in the habit of keeping daily notes, or a diary, or a journal  ofyour activities, tdj can keep them organised and accessible.That's nice, but does it ever do anything useful?-------------------------------------------------If it does, it does it when I'm not looking. Besides, if it did, do you thinkI would be giving it away free?While there is no guarantee that it will do anything useful, or anything at all,there is every probability of the version number increasing in the future asand when I get the time to add more features (especially if anyone asks).How do I use it?----------------The user interface is basically a nice, very versatile calendar, with an editorcapable of handling rich text.You can store your thoughts for a particular day by clicking on the appropriatedate, and entering the data into the editor at the right. To retrieve the notesfor a particular day, click on the desired date. The same editor window displaysthe notes, and you can add to or modify the text if needed.There is a row of tabs which give access to the various components of the PIM.You can bring up your appointment table for the current day and you can add andmake changes to or delete any appointment.You can maintain multiple to-do lists, a table of anniversaries as well as namesand addresses of your contacts, sorted into any organized set of categories ofyour choice.Selecting these tabs will display windows where you can enter, modify, or deletedata.There is a manual also. Read the file "tdjhelp.pdf" in the downloaded package formore details.tdj4 is a small and handy program, and takes up very little space on the desktop,as wellas your hard disk.Availability------------The Daily Journal is available as source code to compile on your own machine, oras a package containing binaries to install and use.Compiling the source--------------------ALl the source files are available on Github under the following link:https://github.com/letapk/tdj4The repository is public. Anyone can check out the branch onto her local machine.In addition, you will need the libraries and developement files from Qt, which areavailable from the depository of your Linux distribution or fromwww.qt.io.The current source tree compiles and runs using Qt version 5.15.3.Also required are the development files and libraries of the GNU Cryptographic library.They can be found from the GNU website,www.gnu.org, as well as the Linux distributiondepository.If you are using QtCreator, load the project file tdj4.pro which is available in the sourcepackage. Select the version you want to build (debug version or release version) and hitCtrl-B. If there are no problems, this should build the binary.The program has been compiled and tested on version 5.15.3 of Qt, under Ubuntu22.04.The binary may be stored locally in a directoriy separate from the source subdirectory,depending on how QtCreator is configured. This location will be available within QtCreator.If you are not using QtCreator, running the comand:qmake tdj4.proshould create a Makefile for your system. Then, running:makeshould create a running binary.When the program is executed, tdj4 searches for a hidden subdirectory called“.cryptdj”. If this is absent (which will be the case when it is executed the firsttime) it issues a notification that it will be created. Subsequently all data isstored in this subdirectory.Exit the program and copy the help and image files in the downloaded package to thehidden data subdirectory. Either use a file manager or open a terminal and do thefollowing from within the tdj4 subdirectory:cp tdjhelp.* ~/.cryptdjcp COPYING ~/.cryptdjRemember to put the dot (".") in the right place. This will make the on-line helpavailable when the program is running.If you are using QtCreator, the location of the locally compiled binary will beavailable from within QtCreator. If not, the binary will be in the same location as thesource files. From this location copy the binary to a place from where everyone workingon the computer can run it.From the subdirectory containing the binary do:sudo cp ./tdj4 /usr/local/bin/tdj4Enter the password when prompted.If your preferred language locale is German, and you wish that the program presentits user interface also in theGerman language, then the file containing thetranslations should be in the same location as the program binary, so copy it thereas well:cp ./tdj4_de.qm /usr/local/bin/tdj4_de.qmChanges in version 4-0.1------------------------1. Added the facility to encrypt user data. This is stored in a subdirectorydifferent from the one used by version 3-0.3. Data created by each version cancoexist without interference, and since the binaries have different names, theycan also coexist peacefully.2. Modification of the user manual.3. One consequence of encryption is that THE FORMAT OF THE DATA FILES IS DIFFERENT.You cannot read data created by version 3-0.3 into version 4-0.1. However, you canrun both the programs together, side by side, and copy-paste information from oneversion to the other.4. Incorporation of the German language translation in a translation file, which isused by the user-interface if the language locale is German.Changes in version 3-0.3------------------------1. Added a toolbar and converted the editors from plaintext to rich text. Code forthis has been shamelessly re-used from the Richtext example in the Qt documentation.A major consequence of the change from plaintext editors to richtext editors isthat the data is stored and interpreted as HTML. This means that earlier notes willbe interpreted as HTML. Since HTML rendering recognizes line breaks and paragraphsin a different manner, all line breaks and paragraphs in existing notes will beignored, and you will have see an unbroken stream of text.The notes, lists and contact data will have to be re-formatted manually.3. Added the facility to export the notes and lists as plaintext.4. Removed the facility to convert data created by the FLTK version "fltdj2" to thenew version 3 format. This is available in version 3-0.2, for those who need toconvert old data.Changes in version 3-0.2------------------------Added compiler directives to detect whether the binary is running under MS-Windowsor Linux, and to set the data path correctly.Changes in version 3-0.1------------------------Converted the user inteface from FLTK to Qt.This was a complete program rewrite with modifications of the layout in accordancewith the new toolkit.The notes and appointments data have been split into different files.Addition of appointments which repeat daily.The program converts fltdj2 data to the new format once when it is newly installed.Modification of the user manual.All versions of The Daily Journal prior to ver. 3 were named "fltdj" and used FLTK,"The Fast, Light Toolkit" fromwww.fltk.org for the user interface.What is the copying policy?---------------------------While it is copyright, (C) 2001 onwards, Kartik Patel  the program is also freesoftware; you can redistribute it and/or modify it under the terms of the GNUGeneral Public License as published by  the Free Software Foundation; eitherversion 2 of the License, or (at your option) any later version.  This programis distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;without even the implied warranty of MERCHANTABILITY or FITNESS FOR APARTICULAR PURPOSE.  See the GNU General Public License for more details.  Youwill receive a copy of the GNU General Public License along with this program;for more information, write to the Free Software  oundation, Inc., 675 MassAve, Cambridge, MA 02139, USA.What else?----------That covers it, more or less. Email me if there is anything left out, or there areproblems in istallation.Enjoy!Kartik Patelletapk@gmail.comhttps://letapk.wordpress.com