The E-Table package implements an editable table that provides
user-defined rendering, user-defined editing, sorting and grouping of
the objects displayed.
It is inspired by Java's Swing JTable object. There are models for
the actual table contents and for the table headers; they are the
actual repository of information.
The objects are rendered by various view objects. In the current code
base, we use we use GnomeCanvasItems to do the rendering. One for
each table and one for the headers.
* The Models
All of them are GtkObjects.
e-table-model.h, e-table-model.c:
These implement the abstract E-Table-Model class. You
can derive this object to create your own data repository.
These emits signals to notify the views about selection, and
changes in the model.
e-table-simple.h, e-table-simple.c:
A simple implementation of e-table-model that uses callback
routines (you provide the callbacks). For lazy people, like
me.
e-cell.c, e-cell.h:
These are actually mis-named. Objects of type e-cell know
about rendering a single cell, and these are attached to the
e-table-cols (described next).
The user provides the various rendering modes as e-cells (they
are actually column-rendering repositories).
This is just an abstract class. I will provide various
e-cells: a text cell, a checkbox cell, an image cell, and
perhaps an n-state image cell (one that switches the image when
the cell is clicked).
e-table-col.h, e-table-col.c:
Describes a single column (the size, the string displayed, the
rendering function for each row and comparison function for
this field).
* The Views
e-table-header.h, e-table-header.c:
These implement the ETableHeaderItem canvas item. This item is
used both to control the columns displayed as well as displaying them.
They describe what columns are shown in the screen and in
which order.
These emit signals: column-size-changed and structure-changed
(if a column is added/removed)
e-table-item.c, e-table-item.h
This is a canvas item that renders the contents of a
ETableModel into the screen.
e-table-header-item.c, e-table-header-item.h
This canvas item renders the ETableHeader headings.
e-cell-text.c, e-cell-text.h
Not really a view, but actually a derivative of e-cell that
implements text display: supports justification and font
setting. Will add color in the future most likely
* The Filters
e-table-sorted.c, e-table-sorted.h
This is an ETableModel that can sort an existing ETableModel.
e-table-subset.c, e-table-subset.h
Not finished, but it is just an ETableModel that happens to be
a subset of another ETableModel.
* Everything
e-table.c, e-table.h
In the future these guys will implement the whole widget for
doing table editing. Nothing done about these yet.
