What IDEs do you use for developing embedded systems and GUI programs for them on linux (ubuntu) ?

Hello everyone! I want to want to develop embedded systems and to write computer/mobile applications for them. So, what IDEs you guys use for developing GUI desktop programs for linux and, also, for embedded systems? I'm using Atom text editor for writing code, but i want an IDE for "building" GUI with drag & drop maybe, like in Microsoft visual studio?

sorry for my bad english and bad grammar..