First collected volumes, then read volumes.
* src/eom-edit-window.c (COLUMNS): New constant, the number of columns
to show in the table.
(create_volume_button): New function. Creates a button that
represent the state of a volume.
(eom_edit_window_init): Don't make the box with volumes force all
widgets to be the same size.
(set_manga_id): Show labels above each group of volumes, this way
nobody has to guess on what they mean.
* src/eom-main-window.c (eom_main_window_new): Set the `state'
variable to 0 the first time around.
(eom_main_window_load): Remove the `manga' parameter. Get
incomplete collections when `state' is `0'.
(eom_main_window_on_filter): Don't fetch any manga, just set the
window's `state'.
(eom_main_window_on_new):
(eom_main_window_on_edit_closed): No more `manga' parameter for
`eom_main_window_load'.
* src/eom-main-window.h (struct _EomMainWindow): Add `state' property.
* src/interface.c (interface_show_main_window): No more `manga'
parameter for `eom_main_window_load'.
This filter, in the main window, shows only the manga that still need
to be collected, not the completed ones.
* src/data.c (data_get_manga): Use `data_get_manga_for_query'.
(data_get_incomplete_manga): New function, get all manga that arent'
completely collected yet.
(data_get_manga_for_query): New function, fetches all the manga as
`query' specifies.
* src/data.h: Add `data_get_incomplete_manga'.
* src/eom-main-window.c (filter_args): New struct. Contains arguments
needed by the filter callback.
(eom_main_window_load): Accept a list of manga, this list will be
used to show the manga, if it's NULL, a list of all manga is used.
(eom_main_window_add_menu): Add `All' and `Collect' filter buttons.
(eom_main_window_on_filter): Callback for the filter buttons,
reloads the list with the correct manga.
* src/eom-main-window.h: Add manga parameter to
`eom_main_window_load'.
* src/interface.c (interface_show_main_window): Pass `NULL' to
`eom_main_window_load' to show all manga.
