/*
* 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 gpointer 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 gpointer 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 VIEW_COLS 4
#define PHYSICAL_COLS 5
#define VIRTUAL_COLS 6
#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>"
gchar *headers[VIEW_COLS] = {
"Email",
"Full Name",
"Address",
"Phone"
};
/* Virtual Column list:
0 Full Name
1 Email
2 Address
3 Phone
4 Importance field. This field will be a boolean. It also has a
special header, so doesn't appear in the headers list.
5 Color field. This column is also not displayed. It is also
not stored in the database. It's calculated based on the
Importance field.
*/
gchar *table_data[ROWS][VIEW_COLS];
gboolean importance_data[ROWS];
/*
* 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. */
static GdkColor *color1;
static GdkColor *color2;
static gint
my_col_count (ETableModel *etc, gpointer data)
{
return VIRTUAL_COLS;
}
static gint
my_row_count (ETableModel *etc, gpointer data)
{
return ROWS;
}
static gpointer
my_value_at (ETableModel *etc, gint col, gint row, gpointer data)
{
if (col == COLOR_COLUMN) {
if (importance_data[row]) {
return color1;
} else {
return color2;
}
} else if (col == IMPORTANCE_COLUMN) {
return (gpointer) importance_data[row];
} else {
return (gpointer) table_data [row][col];
}
}
static void
my_set_value_at (ETableModel *etc, gint col, gint row, gconstpointer val, gpointer data)
{
if (col == COLOR_COLUMN) {
} else if (col == IMPORTANCE_COLUMN) {
importance_data[row] = (gboolean) val;
} else {
g_free (table_data [row][col]);
table_data [row][col] = g_strdup (val);
}
}
static gboolean
my_is_cell_editable (ETableModel *etc, gint col, gint row, gpointer data)
{
if (col == IMPORTANCE_COLUMN)
return FALSE;
else
return TRUE;
}
static gpointer
my_duplicate_value (ETableModel *etc, gint col, gconstpointer value, gpointer data)
{
if (col == COLOR_COLUMN) {
return (gpointer) value;
} else if (col == IMPORTANCE_COLUMN) {
return (gpointer) value;
} else {
return g_strdup (value);
}
}
static void
my_free_value (ETableModel *etc, gint col, gpointer value, gpointer data)
{
if (col == COLOR_COLUMN) {
} else if (col == IMPORTANCE_COLUMN) {
} else {
g_free (value);
}
}
static gpointer
my_initialize_value (ETableModel *etc, gint col, gpointer data)
{
if (col == COLOR_COLUMN) {
return NULL;
} else if (col == IMPORTANCE_COLUMN) {
return NULL;
} else {
return g_strdup ("");
}
}
static gboolean
my_value_is_empty (ETableModel *etc, gint col, gconstpointer value, gpointer data)
{
if (col == COLOR_COLUMN) {
return value == NULL;
} else if (col == IMPORTANCE_COLUMN) {
return value == NULL;
} else {
return !(value && *(gchar *)value);
}
}
static gchar *
my_value_to_string (ETableModel *etc, gint col, gconstpointer value, gpointer data)
{
if (col == COLOR_COLUMN) {
return g_strdup_printf("%d", (gint) value);
} else if (col == IMPORTANCE_COLUMN) {
return g_strdup_printf("%d", (gint) value);
} else {
return g_strdup(value);
}
}
/* We create a window containing our new table. */
static void
create_table ()
{
GtkWidget *e_table, *window, *frame;
ECell *cell_left_just;
ECell *cell_checkbox;
ETableHeader *e_table_header;
gint i, j;
ETableModel *e_table_model = NULL;
ETableCol *ecol;
GdkPixbuf *pixbuf;
/* First we fill in the simple data. */
for (i = 0; i < ROWS; i++) {
for (j = 0; j < VIEW_COLS; j++) {
table_data[i][j] = g_strdup ("");
}
importance_data[i] = FALSE;
}
/* 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 < VIEW_COLS; i++) {
/* Create the column. */
ETableCol *ecol = e_table_col_new (
i, headers [i],
1.0, 20, cell_left_just,
e_str_compare, TRUE);
/* Add it to the header. */
e_table_header_add_column (e_table_header, ecol, i);
}
/* Next we add a special column for the check box. */
cell_checkbox = e_cell_checkbox_new ();
pixbuf = gdk_pixbuf_new_from_file ("clip.png");
ecol = e_table_col_new_with_pixbuf (i, pixbuf, 0.0, 18, cell_checkbox, e_int_compare, TRUE);
e_table_header_add_column (e_table_header, ecol, i);
/*
* Setup GUI
*/
/* 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);
}
gint
main (gint argc, gchar *argv [])
{
gnome_init ("TableExample", "TableExample", argc, argv);
e_cursors_init ();
gtk_widget_push_colormap (gdk_rgb_get_colormap ());
create_table ();
gtk_main ();
e_cursors_shutdown ();
return 0;
}
