/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Chris Lahey <clahey@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include <stdio.h>
#include <string.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "gal/e-util/e-cursors.h"
#include "e-table-simple.h"
#include "e-table-header.h"
#include "e-table-header-item.h"
#include "e-table-item.h"
#include "e-cell-text.h"
#include "e-cell-checkbox.h"
#include "e-table.h"
#include "table-test.h"
/*
* One way in which we make it simpler to build an ETableModel is through
* the ETableSimple class. Instead of creating your own ETableModel
* class, you simply create a new object of the ETableSimple class. You
* give it a bunch of functions that act as callbacks.
*
* You also get to pass a void * to ETableSimple and it gets passed to
* your callbacks. This would be for having multiple models of the same
* type. This is just an example though, so we statically define all the
* data and ignore the void *data parameter.
*
* In our example we will be creating a table model with 6 columns and 10
* rows. This corresponds to having 6 different types of information and
* 10 different sets of data in our database.
*
* The headers will be hard coded, as will be the example data.
*
*/
/*
* There are two different meanings to the word "column". The first is
* the model column. A model column corresponds to a specific type of
* data. This is very much like the usage in a database table where a
* column is a field in the database.
*
* The second type of column is a view column. A view column
* corresponds to a visually displayed column. Each view column
* corresponds to a specific model column, though a model column may
* have any number of view columns associated with it, from zero to
* greater than one.
*
* Also, a view column doesn't necessarily depend on only one model
* column. In some cases, the view column renderer can be given a
* reference to another column to get extra information about its
* display.
*/
#define ROWS 10
#define COLS 4
#define IMPORTANCE_COLUMN 4
#define COLOR_COLUMN 5
/*
* Here we define the initial layout of the table. This is an xml
* format that allows you to change the initial ordering of the
* columns or to do sorting or grouping initially. This specification
* shows all 5 columns, but moves the importance column nearer to the
* front. It also sorts by the "Full Name" column (ascending.)
* Sorting and grouping take the model column as their arguments
* (sorting is specified by the "column" argument to the leaf elemnt.
*/
#define INITIAL_SPEC "<ETableSpecification> \
<columns-shown> \
<column> 0 </column> \
<column> 4 </column> \
<column> 1 </column> \
<column> 2 </column> \
<column> 3 </column> \
</columns-shown> \
<grouping> <leaf column=\"1\" ascending=\"true\"/> </grouping> \
</ETableSpecification>"
char *headers [COLS] = {
"Email",
"Full Name",
"Address",
"Phone"
};
/*
* Virtual Column list:
* 0 Email
* 1 Full Name
* 2 Address
* 3 Phone
*/
char *table_data [ROWS] [COLS];
/*
* ETableSimple callbacks
* These are the callbacks that define the behavior of our custom model.
*/
/*
* Since our model is a constant size, we can just return its size in
* the column and row count fields.
*/
/* This function returns the number of columns in our ETableModel. */
static int
my_col_count (ETableModel *etc, void *data)
{
return COLS;
}
/* This function returns the number of rows in our ETableModel. */
static int
my_row_count (ETableModel *etc, void *data)
{
return ROWS;
}
/* This function returns the value at a particular point in our ETableModel. */
static void *
my_value_at (ETableModel *etc, int col, int row, void *data)
{
return (void *) table_data [row] [col];
}
/* This function sets the value at a particular point in our ETableModel. */
static void
my_set_value_at (ETableModel *etc, int col, int row, const void *val, void *data)
{
g_free (table_data [row] [col]);
table_data [row] [col] = g_strdup (val);
}
/* This function returns whether a particular cell is editable. */
static gboolean
my_is_cell_editable (ETableModel *etc, int col, int row, void *data)
{
return TRUE;
}
/* This function duplicates the value passed to it. */
static void *
my_duplicate_value (ETableModel *etc, int col, const void *value, void *data)
{
return g_strdup (value);
}
/* This function frees the value passed to it. */
static void
my_free_value (ETableModel *etc, int col, void *value, void *data)
{
g_free (value);
}
/* This function creates an empty value. */
static void *
my_initialize_value (ETableModel *etc, int col, void *data)
{
return g_strdup ("");
}
/* This function reports if a value is empty. */
static gboolean
my_value_is_empty (ETableModel *etc, int col, const void *value, void *data)
{
return !(value && *(char *)value);
}
/* This function reports if a value is empty. */
static char *
my_value_to_string (ETableModel *etc, int col, const void *value, void *data)
{
return g_strdup(value);
}
/* We create a window containing our new table. */
static void
create_table (void)
{
GtkWidget *e_table, *window, *frame;
ECell *cell_left_just;
ETableHeader *e_table_header;
int i, j;
ETableModel *e_table_model = NULL;
/* First we fill in the simple data. */
for (i = 0; i < ROWS; i++){
for (j = 0; j < COLS; j++)
table_data [i] [j] = g_strdup ("");
}
/* Next we create our model. This uses the functions we defined
earlier. */
e_table_model = e_table_simple_new (
my_col_count, my_row_count, my_value_at,
my_set_value_at, my_is_cell_editable,
my_duplicate_value, my_free_value,
my_initialize_value, my_value_is_empty,
my_value_to_string,
NULL);
/*
* Next we create a header. The ETableHeader is used in two
* different way. The first is the full_header. This is the
* list of possible columns in the view. The second use is
* completely internal. Many of the ETableHeader functions are
* for that purpose. The only functions we really need are
* e_table_header_new and e_table_header_add_col.
*
* First we create the header.
*/
e_table_header = e_table_header_new ();
/*
* Next we have to build renderers for all of the columns.
* Since all our columns are text columns, we can simply use
* the same renderer over and over again. If we had different
* types of columns, we could use a different renderer for
* each column.
*/
cell_left_just = e_cell_text_new (e_table_model, NULL, GTK_JUSTIFY_LEFT);
/*
* Next we create a column object for each view column and add
* them to the header. We don't create a column object for
* the importance column since it will not be shown.
*/
for (i = 0; i < COLS; i++) {
/* Create the column. */
ETableCol *ecol = e_table_col_new (
i, headers [i],
1.0, 20, cell_left_just,
g_str_compare, TRUE);
/* Add it to the header. */
e_table_header_add_column (e_table_header, ecol, i);
}
/*
* Here we create a window for our new table. This window
* will get shown and the person will be able to test their
* item.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
/* This frame is simply to get a bevel around our table. */
frame = gtk_frame_new (NULL);
/*
* Here we create the table. We give it the three pieces of
* the table we've created, the header, the model, and the
* initial layout. It does the rest.
*/
e_table = e_table_new (e_table_header, e_table_model, INITIAL_SPEC);
/* Build the gtk widget hierarchy. */
gtk_container_add (GTK_CONTAINER (frame), e_table);
gtk_container_add (GTK_CONTAINER (window), frame);
/* Size the initial window. */
gtk_widget_set_size_request (window, 200, 200);
/* Show it all. */
gtk_widget_show_all (window);
}
/* This is the main function which just initializes gnome and call our create_table function */
int
main (int argc, char *argv [])
{
gnome_init ("TableExample", "TableExample", argc, argv);
e_cursors_init ();
gtk_widget_push_visual (gdk_rgb_get_visual ());
gtk_widget_push_colormap (gdk_rgb_get_colormap ());
create_table ();
gtk_main ();
e_cursors_shutdown ();
return 0;
}
