Make toolbar for the 3D viewer

[lauramurgatroyd]

Toolbar attached to viewer with buttons: 

2D settings – this will open a dialogue with settings for the slice 

3D settings – this will open a dialogue with settings for the volume render 

Reset – will reset all applied settings 

Reset camera – will return camera to initial position 

Save – will save a PNG – same functionality as “r” key press on local 3D viewer 

The “reset” and “reset camera” buttons will have the same functionality as these buttons on the web viewer.

  2D Settings Dialogue 

Slice settings, same settings as in web viewer. 

3D Settings Dialogue 

Volume render settings, same as in the web viewer.

Plus we could also have the background colour setting here? 

 

[lauramurgatroyd]

Should also add a section for keypresses: #332