2008-04-29  Murray Cummin  <murrayc@murrayc.com>

Large refactoring of the Base_DB_* and Box_DB_* hierarchy to make it 
simpler and less hacky.

* docs/developer_reference/Doxyfile: Added this, so you can do 
doxygen Doxyfile to get some HTML to help understand the code.

* glom/signal_reemitter.h: Added signal_connect_for_reemit_*args(), 
to make it easier to just emit a signal in response to another one, 
for instance to emit up to a parent widget.
* regression_tests/Makefile.am:
* regression_tests/test_signal_reemit.cc: Added a test for this.

* glom/Makefile.am:
* glom/base_db.[h|cc]: Split this, to create:
* glom/base_db_table.[h|cc]
* glom/base_db_table_data.[h|cc]: with some stuff from Box_DB_Table.

* glom/box_db.[h|cc]:  Renamed to
* glom/box_withbuttons.[h|cc] because that's all this is now.

* glom/box_db_table.[h|cc]: Derive from Base_DB_Table, instead of 
implementing so much stuff.

* glom/mode_data/Makefile.am:
* glom/mode_data/box_data.[h|cc]: Derive from Box_WithButtons,
        and Base_DB_Table_Data instead of implementing so much stuff.

* glom/mode_data/box_data_details.[h|cc]
* glom/mode_data/box_data_manyrecords.cc[h|cc]: Added this base class 
for:
* glom/mode_data/box_data_list.[h|cc]
and Box_Data_Portal:

* glom/mode_data/box_data_portal.cc[h|cc]: Added this base class 
for 
* glom/mode_data/box_data_calendar_related.[h|cc]
and
* glom/mode_data/box_data_list_related.[h|cc]

* glom/utility_widgets/db_adddel/db_adddel.[h|cc] Derive from 
Base_DB_Table_Data, to use its implementation, to move lots of 
code for record adding, changing, and deleting into this widget instead 
of having decisions in the parent Box_Data_List_Related and Box_Data_List.
This is simpler.

svn path=/trunk/; revision=1596