Qt GUI interface like Adobe Acrobat Reader

[indianinside]

I want to do a multi-file format reader..I have the parsers done for few of the file formats that I need. But I want to make a GUI like Adobe Acrobat Reader.
i.e show thumbnails of the files on the left sidebar and content on the right. And also it should take care of multiple pages in a document. and usual functionalities like going back and forward to pages etc..

I don't want to use the Qt Design as it dumps all the stuff in one huge file. I need to make separate files for each part so that I can make modifications additions easily.

So the problem is I don't know how to make the left sidebar fill up with images(thumbnails) and when clicked it should show up the respective content painted on the right. And I am using QGraphicsView framework so that my content are editable/draggable later. So something using qgraphicsview would be helpful.
Could somebody give a small demo of what I need or atleast bits and pieces of what I am looking for. Right now my UI looks like a simple reader with menu on top and the central widget shows the content when a file is loaded through the file menu.

So I need some help on the UI and also how to distribute and store things of UI in different classes and what has to be stored in what class and how the interaction takes place.
Its not that I am asking for spoon feeding, but after several tries of failed attempts to get the kind of UI and functionality I planned to post it on this forum.
any help would be appreciated.

[amleto]

one thing at a time. You want a thumbnail viewer. do you know how to make a single thumbnail? is your sidebar also using graphicsview?

[indianinside]

thanks for the reply.

yeh something like a thumbnail viewer, as this is not like an image viewer. I had tried to make single thumbnail using QImage scale function but couldnt make that work. Yes, the sidebar is a graphicsview as of now but I can make it into a QWdiget too, as it has no extra functionality other than clickable thumbnails on the left sidebar.

[amleto]

show what you have for thumbnail viewer in code and we can go on from there.

[indianinside]

oh no I have not implemented the viewer, I know only how to make thumbnails like this.. I wouldn't ask this help if I knew how to make the thumbnail viewer..

QImage result = img.scaled(800, 600).scaled(200, 150, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);

[amleto]

well, you're going to have to make a start by yourself and show some code. You say you have a graphics view sidebar. You'll probably want to put these in your scene/view http://qt-project.org/doc/qt-5.0/qgr...ixmapitem.html

Why don't you try that and post some code if you get stuck.

[ChrisW67]

I don't want to use the Qt Design as it dumps all the stuff in one huge file. I need to make separate files for each part so that I can make modifications additions easily.

Designer does not enforce a monolithic UI design on you. You can design widgets independently and aggregate them into a the main UI using the Promotion feature, or construct the main UI by hand and aggregate the widget that way.