ex26_2.c

linux 高级编程的例子源码,包括了本书上的所有代码

/* filename: Clist.c */
#include <gtk/gtk.h>

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" } };

    for ( indx=0 ; indx < 4 ; indx++ )
	gtk_clist_append( (GtkCList *) data, drink[indx]);

    return;
}

void button_clear_clicked( gpointer data )
{
    gtk_clist_clear( (GtkCList *) data);
    return;
}

void button_hide_show_clicked( gpointer data )
{
    static short int flag = 0;

    if (flag == 0)
    {
      gtk_clist_column_titles_hide((GtkCList *) data);
	      flag++;
    }
    else
    {
      gtk_clist_column_titles_show((GtkCList *) data);
      flag--;
    }

    return;
}

void selection_made( GtkWidget      *clist,
                     gint            row,
                     gint            column,
		                 GdkEventButton *event,
                     gpointer        data )
{
    gchar *text;

    gtk_clist_get_text(GTK_CLIST(clist), row, column, &text);
    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 *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_usize(GTK_WIDGET(window), 300, 150);
    gtk_window_set_title(GTK_WINDOW(window), "GtkCList Example");
    gtk_signal_connect(GTK_OBJECT(window),  "destroy",
	       GTK_SIGNAL_FUNC(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);
    
    clist = gtk_clist_new_with_titles( 2, titles);

    gtk_signal_connect(GTK_OBJECT(clist), "select_row",
		       GTK_SIGNAL_FUNC(selection_made),
		       NULL);

    gtk_clist_set_shadow_type (GTK_CLIST(clist), GTK_SHADOW_OUT);
    gtk_clist_set_column_width (GTK_CLIST(clist), 0, 150);
    gtk_box_pack_start(GTK_BOX(vbox), clist, TRUE, TRUE, 0);
    gtk_widget_show(clist);

    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);

    gtk_signal_connect_object(GTK_OBJECT(button_add), "clicked",
			      GTK_SIGNAL_FUNC(button_add_clicked),
			      (gpointer) clist);
    gtk_signal_connect_object(GTK_OBJECT(button_clear), "clicked",
			      GTK_SIGNAL_FUNC(button_clear_clicked),
			      (gpointer) clist);
    gtk_signal_connect_object(GTK_OBJECT(button_hide_show), "clicked",
			      GTK_SIGNAL_FUNC(button_hide_show_clicked),
			      (gpointer) clist);

    gtk_widget_show(button_add);
    gtk_widget_show(button_clear);
    gtk_widget_show(button_hide_show);

    gtk_widget_show(window);
    gtk_main();
    
    return(0);
}