1.6 KiB
Prepare
Please copy the app template files first:
$ cd ..
$ ./copy.sh camera
Info
This shows how to use the QML Camera item. Only very basic usage is covered
here -- of course you can set many parameters, if you want to dive into all the
details (see Qt Assistant).
Additionally, a basic web-server is integrated, in order to watch/download the
images (mobile device) on the desktop computer. On every new image taken, the
index.html is updated.
To display the images on the desktop, enter the following link, using the IP of the mobile device (assuming both desktop and mobile are in the same WiFi):
http://192.168.1.x:1701/
1701 is the default port of :s-http-server (from Quicklisp), which was
chosen here because it's both relatively small and works well on mobile.
This example needs a small Qt extension for rotating images. That's necessary here because different devices may have different camera orientations, so the saved images would be displayed with the wrong orientation in the desktop browser.
Run
lqml run.lisp
Optionally pass -slime to start a Swank server, and connect from Emacs with
M-x slime-connect.
During development you can pass -auto, which will releoad all QML files after
you made a change to any of them and saved it. For re-initialization after
reloading, file lisp/qml-reload/on-reloaded will be loaded.
Closing the window quits the app. If you try to kill it with ctrl-c, you need
an additional ctrl-d to exit from ECL. To quit from Slime, do (qq) which is
short for (qquit).