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#include <gtk/gtk.h>
#include <stdlib.h>
#define TITLE "GtkComboBox..."
#define WIDTH 300
#define HEIGHT 200
typedef struct _WindowData WindowData;
struct _WindowData
{
GtkWidget *window;
GtkWidget *in_item;
GtkWidget *cb_item;
};
gchar *dialog_get_string (gchar *message_string, WindowData *data);
void on_add_item_clicked (GtkWidget *widget, WindowData *data);
void on_edit_item_clicked (GtkWidget *widget, WindowData *data);
int main (int argc, char **argv)
{
GtkWidget *vbox;
GtkWidget *hbox_frm_in;
GtkWidget *vbox_in, *hbox_lbl, *hbox_in, *hbox_op;
GtkWidget *frm_in;
GtkWidget *lbl_item, *lbl_item_in;
GtkWidget *btn_add, *btn_edit, *btn_remove;
GtkTreeIter iter;
GtkListStore *store;
GtkCellRenderer *cell;
_WindowData win;
gtk_init (&argc, &argv);
win.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW(win.window), TITLE);
gtk_window_set_default_size (GTK_WINDOW(win.window), WIDTH, HEIGHT);
//gtk_window_set_resizable(GTK_WINDOW(win.window), FALSE);
gtk_window_set_position (GTK_WINDOW(win.window), GTK_WIN_POS_CENTER);
g_signal_connect (G_OBJECT(win.window), "destroy", G_CALLBACK(gtk_main_quit), NULL);
vbox = gtk_vbox_new (FALSE, 0); /* Create a vbox to contain all the GUI */
gtk_container_add (GTK_CONTAINER(win.window), vbox); /* Adds vbox to container */
hbox_frm_in = gtk_hbox_new (FALSE, 0); /* Create a vbox to attach the frame */
gtk_box_pack_start (GTK_BOX(vbox), hbox_frm_in, FALSE, FALSE, 0);
frm_in = gtk_frame_new ("Input Data...");
gtk_box_pack_start (GTK_BOX(hbox_frm_in), frm_in, TRUE, TRUE, 5);
vbox_in = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER(frm_in), vbox_in);
hbox_lbl = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX(vbox_in), hbox_lbl, FALSE, FALSE, 0);
lbl_item = gtk_label_new ("Select an Item");
gtk_box_pack_start (GTK_BOX(hbox_lbl), lbl_item, TRUE, FALSE, 0);
lbl_item_in = gtk_label_new ("Input a new item");
gtk_box_pack_start (GTK_BOX(hbox_lbl), lbl_item_in, TRUE, FALSE, 0);
hbox_in = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX(vbox_in), hbox_in, FALSE, FALSE, 0);
/**
* Create a GtkListStore to store items
* The GtkListSore consists in one column
* and one text field
*/
store = gtk_list_store_new (1, G_TYPE_STRING);
/**
* gtk_list_store_set (GtkListStore *list_store, GtkTreeIter *iter, ...);
* For example, to set column 0 with type G_TYPE_STRING to "Foo",
* you would write gtk_list_store_set (store, iter, 0, "Foo", -1).
*/
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, "Linux", -1);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, "Mac OS X", -1);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, "Windows 7", -1);
win.cb_item = gtk_combo_box_new_with_model (GTK_TREE_MODEL(store));
gtk_box_pack_start (GTK_BOX(hbox_in), win.cb_item, TRUE, FALSE, 0);
/* Remove our reference from store to avoid memory leak. */
g_object_unref (G_OBJECT(store));
cell = gtk_cell_renderer_text_new (); /* Create a cell renderer */
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT(win.cb_item), cell, TRUE); /* Pack it into the combo box */
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT(win.cb_item), cell, "text", 0, NULL);
gtk_combo_box_set_active (GTK_COMBO_BOX(win.cb_item), 0);
win.in_item = gtk_entry_new ();
gtk_entry_set_max_length (GTK_ENTRY(win.in_item), 6);
gtk_box_pack_start (GTK_BOX(hbox_in), win.in_item, TRUE, FALSE, 0);
hbox_op = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX(vbox_in), hbox_op, FALSE, FALSE, 0);
btn_add = gtk_button_new_with_label ("Add item");
gtk_box_pack_start (GTK_BOX(hbox_op), btn_add, TRUE, TRUE, 0);
g_signal_connect (G_OBJECT(btn_add), "clicked", G_CALLBACK(on_add_item_clicked), &win);
btn_edit = gtk_button_new_with_label ("Edit item");
gtk_box_pack_start (GTK_BOX(hbox_op), btn_edit, TRUE, TRUE, 0);
g_signal_connect (G_OBJECT(btn_edit), "clicked", G_CALLBACK(on_edit_item_clicked), &win);
btn_remove = gtk_button_new_with_label ("Remove item");
gtk_box_pack_start (GTK_BOX(hbox_op), btn_remove, TRUE, TRUE, 0);
gtk_widget_show_all (win.window);
gtk_main ();
return EXIT_SUCCESS;
}
gchar *dialog_get_string (gchar *message_string, WindowData *data)
{
GtkWidget *dialog;
GtkWidget *in_str;
gchar *string = NULL;
dialog = gtk_dialog_new_with_buttons (message_string,
GTK_WINDOW(data->window),
GTK_DIALOG_MODAL,
GTK_STOCK_OK,
GTK_RESPONSE_OK,
GTK_STOCK_CANCEL,
GTK_RESPONSE_CANCEL,
NULL);
in_str = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), in_str, TRUE, FALSE, 0);
gtk_widget_show_all (GTK_DIALOG(dialog)->vbox);
switch (gtk_dialog_run(GTK_DIALOG(dialog)))
{
case GTK_RESPONSE_OK:
string = (gchar *) gtk_entry_get_text(GTK_ENTRY(in_str));
break;
case GTK_RESPONSE_CANCEL:
case GTK_RESPONSE_NONE:
default:
break;
}
gtk_widget_destroy (dialog);
return string;
}
void on_add_item_clicked (GtkWidget *widget, WindowData *data)
{
GtkTreeIter iter;
GtkListStore *store;
gchar *string = NULL;
string = (gchar *) gtk_entry_get_text (GTK_ENTRY(data->in_item));
store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX(data->cb_item)));
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, string, -1);
g_print ("\nItem %s added...", string);
gtk_editable_delete_text (GTK_EDITABLE(data->in_item), 0, -1);
//Don't work in windows7
//if (string) /* Free string (if not NULL) */
// g_free (string);
}
void on_edit_item_clicked (GtkWidget *widget, WindowData *data)
{
GtkTreeIter iter;
GtkListStore *store;
gchar *string = NULL;
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX(data->cb_item), &iter))
{
//store = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(data->cb_item)));
string = dialog_get_string ("Input the new item!", data);
gtk_entry_set_text (GTK_ENTRY(data->in_item), string);
g_print ("\nNew item: %s", string);
}
} |
