A simple debugging tool exists to help visualize the views tree during debugging. It consists of 4 components:
views::PrintViewGraph()(in the file
To use the tool,
source tools/gdb/viewg.gdb(this can be done automatically in
command script import tools/lldb/lldb_viewg.py(this can be done automatically in
View(or any derived class), and
viewgat the gdb prompt.
This will cause the current view, and any descendants, to be described in a graph which is stored as
~/state.svg (Windows users may need to modify the script slightly to run under CygWin). If
state.svg is kept open in a browser window and refreshed each time
viewg is run, then it provides a graphical representation of the state of the views hierarchy that is always up to date.
It is easy to modify the gdb script to generate PDF in case viewing with evince (or other PDF viewer) is preferred.
If you don't use gdb or lldb, you may be able to adapt the script to work with your favorite debugger. The gdb script invokes
on the current object, returning
std::string, whose contents must then be saved to a file in order to be processed by dot.