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Chris Cochrun 175b327c5c refocus the presentation item 
This command sets the keyboard focus to the presentation item which
controls when slides are changed. It ensures that after every action
you can use the arrow keys to switch the slides.
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cmake fix naming scheme for cmake file 2023-02-15 14:06:01 -06:00
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README.org

Church Presenter

Introduction

This is an attempt at building a church presentation application in Qt/QML. QML provides a very powerful and easy declarative way of creating a UI so it should also be a very simple method of creating on screen slides and presentations. This experiment is to see how difficult it is to rebuild these applications in QML as opposed to other more complicated systems. After digging through the source code of OpenLP, I discovered they are essentially creating a web server and rendering a webpage onto the screen to show slides. This felt like a waste of resources and added complexity when something so simple and useful as QML exists.

Features (planned are in parentheses)

  • Presents songs lyrics with image and video backgrounds
  • Use MPV as a rendering system for videos
  • Simple song creation with a powerful text parser
  • Present Slides
  • (Custom slide builder)
  • (an intuitive UI) - Still needs A LOT of polish

MPV

You will need MPV installed in order to use this. All videos run through it. This, however, enables us to make videos work very well and with a lot of control and since it uses ffmpeg underneath, nearly any codec regardless of underlying system. This prevents the need for the user to install other codecs to work with Windows or MacOS. It also means a much easier control system and the potential to stream web content as well without downloading first.

Build and Run

First get the source code

Then into the root directory.

cd church-presenter

Then build.

cmake -B build/ . && make --dir build/

Then run.

./build/bin/presenter

Nix

If you are using nix to develop with, which I would suggest since that will make sure all the appropriate dependencies are installed, you'll need to do the following:

cd church-presenter
nix develop

This drops you into a shell with all the right dependencies.

If you have direnv

cd church-presenter
direnv allow

Then just as before build and run it the way you would.

Contact Me

If, for whatever reason, you need to contact me and get something ironed out, please do so at chris@cochrun.xyz