gtk/examples/clist/clist.c

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C
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#include "config.h"
#include <gtk/gtk.h>
/* User clicked the "Add List" button. */
void button_add_clicked( gpointer data )
{
int indx;
/* Something silly to add to the list. 4 rows of 2 columns each */
gchar *drink[4][2] = { { "Milk", "3 Oz" },
{ "Water", "6 l" },
{ "Carrots", "2" },
{ "Snakes", "55" } };
/* Here we do the actual adding of the text. It's done once for
* each row.
*/
for (indx = 0; indx < 4; indx++)
gtk_clist_append ((GtkCList *)data, drink[indx]);
return;
}
/* User clicked the "Clear List" button. */
void button_clear_clicked( gpointer data )
{
/* Clear the list using gtk_clist_clear. This is much faster than
* calling gtk_clist_remove once for each row.
*/
gtk_clist_clear ((GtkCList *)data);
return;
}
/* The user clicked the "Hide/Show titles" button. */
void button_hide_show_clicked( gpointer data )
{
/* Just a flag to remember the status. 0 = currently visible */
static short int flag = 0;
if (flag == 0)
{
/* Hide the titles and set the flag to 1 */
gtk_clist_column_titles_hide ((GtkCList *)data);
flag++;
}
else
{
/* Show the titles and reset flag to 0 */
gtk_clist_column_titles_show ((GtkCList *)data);
flag--;
}
return;
}
/* If we come here, then the user has selected a row in the list. */
void selection_made( GtkWidget *clist,
gint row,
gint column,
GdkEventButton *event,
gpointer data )
{
gchar *text;
/* Get the text that is stored in the selected row and column
* which was clicked in. We will receive it as a pointer in the
* argument text.
*/
gtk_clist_get_text (GTK_CLIST (clist), row, column, &text);
/* Just prints some information about the selected row */
g_print ("You selected row %d. More specifically you clicked in "
"column %d, and the text in this cell is %s\n\n",
row, column, text);
return;
}
int main( int argc,
gchar *argv[] )
{
GtkWidget *window;
GtkWidget *vbox, *hbox;
GtkWidget *scrolled_window, *clist;
GtkWidget *button_add, *button_clear, *button_hide_show;
gchar *titles[2] = { "Ingredients", "Amount" };
gtk_init(&argc, &argv);
window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request (GTK_WIDGET (window), 300, 150);
gtk_window_set_title (GTK_WINDOW (window), "GtkCList Example");
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (gtk_main_quit),
NULL);
vbox=gtk_vbox_new (FALSE, 5);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/* Create a scrolled window to pack the CList widget into */
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
/* Create the CList. For this example we use 2 columns */
clist = gtk_clist_new_with_titles (2, titles);
/* When a selection is made, we want to know about it. The callback
* used is selection_made, and its code can be found further down */
g_signal_connect (G_OBJECT (clist), "select_row",
G_CALLBACK (selection_made),
NULL);
/* It isn't necessary to shadow the border, but it looks nice :) */
gtk_clist_set_shadow_type (GTK_CLIST (clist), GTK_SHADOW_OUT);
/* What however is important, is that we set the column widths as
* they will never be right otherwise. Note that the columns are
* numbered from 0 and up (to 1 in this case).
*/
gtk_clist_set_column_width (GTK_CLIST (clist), 0, 150);
/* Add the CList widget to the vertical box and show it. */
gtk_container_add (GTK_CONTAINER (scrolled_window), clist);
gtk_widget_show (clist);
/* Create the buttons and add them to the window. See the button
* tutorial for more examples and comments on this.
*/
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);
gtk_widget_show (hbox);
button_add = gtk_button_new_with_label ("Add List");
button_clear = gtk_button_new_with_label ("Clear List");
button_hide_show = gtk_button_new_with_label ("Hide/Show titles");
gtk_box_pack_start (GTK_BOX (hbox), button_add, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), button_clear, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), button_hide_show, TRUE, TRUE, 0);
/* Connect our callbacks to the three buttons */
g_signal_connect_swapped (G_OBJECT (button_add), "clicked",
G_CALLBACK (button_add_clicked),
clist);
g_signal_connect_swapped (G_OBJECT (button_clear), "clicked",
G_CALLBACK (button_clear_clicked),
clist);
g_signal_connect_swapped (G_OBJECT (button_hide_show), "clicked",
G_CALLBACK (button_hide_show_clicked),
clist);
gtk_widget_show (button_add);
gtk_widget_show (button_clear);
gtk_widget_show (button_hide_show);
/* The interface is completely set up so we show the window and
* enter the gtk_main loop.
*/
gtk_widget_show (window);
gtk_main();
return 0;
}