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/*------------------------------------------------------------------------
* Scilab Gtk menus
* Copyright (C) 2001 Enpc/Jean-Philippe Chancelier
* jpc@cermics.enpc.fr
--------------------------------------------------------------------------*/
#include <gtk/gtk.h>
#include "men_scilab.h"
static int num_item_selected = -1 ;
static GtkWidget *window = NULL;
static void choose_menu_to_utf8(ChooseMenu *PCh);
static void item_selected(GtkWidget *widget,
int selected)
{
gtk_widget_destroy(window);
/* must be there since gtk_widget_destroy will change num_item_selected */
num_item_selected = selected ;
gtk_main_quit();
}
int ExposeChooseWindow(ChooseMenu *PCh)
{
guint destroy_id;
int i,maxl;
GtkWidget *cbox;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *scrolled_win;
GtkWidget *list;
GtkWidget *button;
GtkWidget *separator;
start_sci_gtk(); /* in case gtk was not initialized */
/* do not accept a reenter mode */
if ( window != NULL) return FALSE ;
/* initialize */
choose_menu_to_utf8(PCh);
num_item_selected = -1;
/* the window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
destroy_id = gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC(item_selected),
GINT_TO_POINTER(-3));
gtk_window_set_title (GTK_WINDOW (window), "Scilab Choose");
gtk_container_set_border_width (GTK_CONTAINER (window),5);
/* a vbox */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
/* label */
cbox = gtk_hbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (cbox), 10);
gtk_box_pack_start (GTK_BOX (vbox), cbox, FALSE, TRUE, 0);
label = gtk_label_new (PCh->description);
gtk_box_pack_start (GTK_BOX (cbox), label, FALSE, FALSE, 0);
/* the list */
#if GTK_MAJOR_VERSION == 2
maxl = g_utf8_strlen(PCh->strings[0],-1);
for (i = 0; i < PCh->nstrings ; i++) maxl = Max(maxl,g_utf8_strlen(PCh->strings[i],-1));
#else
maxl = strlen(PCh->strings[0]);
for (i = 0; i < PCh->nstrings ; i++) maxl = Max(maxl,strlen(PCh->strings[i]));
#endif
if ( maxl > 50 || PCh->nstrings > 30)
{
/* here we need a scrolled window */
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_container_set_border_width (GTK_CONTAINER (scrolled_win), 1);
gtk_widget_set_usize (scrolled_win,200,300);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_win, TRUE, TRUE, 0);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
list = gtk_list_new ();
gtk_list_set_selection_mode (GTK_LIST (list), GTK_SELECTION_SINGLE);
gtk_scrolled_window_add_with_viewport
(GTK_SCROLLED_WINDOW (scrolled_win), list);
gtk_container_set_focus_vadjustment
(GTK_CONTAINER (list),
gtk_scrolled_window_get_vadjustment
(GTK_SCROLLED_WINDOW (scrolled_win)));
gtk_container_set_focus_hadjustment
(GTK_CONTAINER (list),
gtk_scrolled_window_get_hadjustment
(GTK_SCROLLED_WINDOW (scrolled_win)));
gtk_widget_show(scrolled_win);
}
else
{
/* no need to add a viewport */
GtkWidget *frame = gtk_frame_new(NULL);
GtkWidget *fvbox = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox),frame, TRUE, TRUE, 0);
gtk_container_set_border_width (GTK_CONTAINER (frame),2);
gtk_widget_show(frame);
gtk_container_set_border_width (GTK_CONTAINER(fvbox),2);
gtk_container_add (GTK_CONTAINER (frame),fvbox);
gtk_widget_show(fvbox);
list = gtk_list_new ();
gtk_container_add (GTK_CONTAINER (fvbox),list);
gtk_widget_show(list);
}
for (i = 0; i < PCh->nstrings ; i++)
{
GtkWidget *item = gtk_list_item_new_with_label(PCh->strings[i]);
gtk_signal_connect (GTK_OBJECT (item), "select",
GTK_SIGNAL_FUNC(item_selected),
GINT_TO_POINTER(i));
gtk_container_add (GTK_CONTAINER (list), item);
}
separator = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, TRUE, 0);
cbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), cbox, FALSE, TRUE, 0);
button = gtk_button_new_with_label (PCh->buttonname[0]);
gtk_container_set_border_width (GTK_CONTAINER (button), 10);
gtk_box_pack_start (GTK_BOX (cbox), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC(item_selected),
GINT_TO_POINTER(-2));
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_widget_grab_default (button);
gtk_widget_show_all (window);
while ( 1)
{
gtk_main();
/* want to quit the gtk_main only when this
* list menu is achieved
*/
if ( num_item_selected != -1 ) break;
}
window = NULL;
PCh->choice = num_item_selected;
return ( PCh->choice >= 0) ? TRUE : FALSE;
}
extern char *sci_convert_to_utf8(char *str, int *alloc);
/* note that since the strings were allocated
* if we reallocate them or not they have to be freed
* at the end in all cases thus alloc is not used.
*/
static void choose_menu_to_utf8(ChooseMenu *PCh)
{
int alloc,i;
PCh->description = sci_convert_to_utf8(PCh->description,&alloc);
for (i = 0; i < PCh->nstrings ; i++)
PCh->strings[i] = sci_convert_to_utf8(PCh->strings[i],&alloc);
for (i = 0; i < PCh->nb ; i++)
PCh->buttonname[i] = sci_convert_to_utf8(PCh->buttonname[i],&alloc);
}
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