Create application to build diagrams
I'm trying to build an application that must have a work panel containing some images (in SVG format); they represent some pieces, and can be dragged, connected in between, etc...
For now, I've drwn a widget with SVG inside, by sub-classing QWidget. Now, I would ask you for some techniques to be able to drag, drop, connect with lines and all this stuff with these items that are inside it. I am a bit lost, because I ve never created a such application.
Investigate "Qt Graphics View Framework":https://qt-project.org/doc/qt-4.8/graphicsview.html. QML could also help you here.
don't you think that such a application is too much for your current skills then? I think when we start helping you we would end up writing the application for you...
You should check out the resources on the web for drag-n-drop and QGraphicsView i would say. Then make a rough overview of the concept and how you could implement each feature with the given technology. Then connect each piece with each other.
Also check the examples in QtCreator for this! Use this as basis for a demo app and combine these pieces of information to a newly designed app.
Thank you all for your fast replies. I just wanted a starting point in order to start in the best way; from here, try asking more specific questions about the implementation im making =), i promise
This thread might be useful:
Also, I tried something similar and was able to draw a line connecting 2 points (even after dragging them around) in QML + JS code, by means of the Canvas element in QtQuick 2.
Just in case it's (even marginally) useful, I uploaded the proof of concept (and full of commented code which was a Work In Progress) line connection code which I just talked about: