path: root/widgets/misc/e-multi-config-dialog.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-multi-config-dialog.c
 *
 * Copyright (C) 2002  Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli <ettore@ximian.com>
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-multi-config-dialog.h"

#include "e-clipped-label.h"

#include <gal/e-table/e-table-scrolled.h>
#include <gal/e-table/e-table-memory-callbacks.h>

#include <gdk-pixbuf/gdk-pixbuf.h>


#define PARENT_TYPE gnome_dialog_get_type ()
static GnomeDialogClass *parent_class = NULL;


struct _Page {
    char *title;
    char *description;
    GdkPixbuf *icon;
    EConfigPage *page_widget;
};
typedef struct _Page Page;

struct _EMultiConfigDialogPrivate {
    GSList *pages;

    GtkWidget *list_e_table;
    ETableModel *list_e_table_model;

    GtkWidget *notebook;

    int num_unapplied;
};


/* ETable stuff.  */

static char *list_e_table_spec =
    "<ETableSpecification cursor-mode=\"line\""
    "             selection-mode=\"browse\""
    "                     no-headers=\"true\">"
    "  <ETableColumn model_col=\"0\""
    "            expansion=\"1.0\""
    "                cell=\"string\""
    "                minimum_width=\"32\""
    "                resizable=\"true\""
    "            _title=\"blah\""
    "                compare=\"string\"/>"
    "  <ETableState>"
    "    <column source=\"0\"/>"
    "    <grouping>"
    "      <leaf column=\"0\" ascending=\"true\"/>"
    "    </grouping>"
    "  </ETableState>"
    "</ETableSpecification>";


/* Button handling.  */

static void
update_buttons (EMultiConfigDialog *dialog)
{
    EMultiConfigDialogPrivate *priv;

    priv = dialog->priv;

    if (priv->num_unapplied > 0) {
        gnome_dialog_set_sensitive (GNOME_DIALOG (dialog), 0, TRUE); /* OK */
        gnome_dialog_set_sensitive (GNOME_DIALOG (dialog), 1, TRUE); /* Apply */
    } else {
        gnome_dialog_set_sensitive (GNOME_DIALOG (dialog), 0, FALSE); /* OK */
        gnome_dialog_set_sensitive (GNOME_DIALOG (dialog), 1, FALSE); /* Apply */
    }
}


/* Page handling.  */

static Page *
page_new (const char *title,
      const char *description,
      GdkPixbuf *icon,
      EConfigPage *page_widget)
{
    Page *new;

    new = g_new (Page, 1);
    new->title       = g_strdup (title);
    new->description = g_strdup (description);
    new->icon        = icon;
    new->page_widget = page_widget;

    if (icon != NULL)
        gdk_pixbuf_ref (icon);

    return new;
}

static void
page_free (Page *page)
{
    g_free (page->title);
    g_free (page->description);

    if (page->icon != NULL)
        gdk_pixbuf_unref (page->icon);

    g_free (page);
}

static GtkWidget *
create_page_container (const char *description,
               GtkWidget *widget)
{
    GtkWidget *vbox;
    GtkWidget *label;
    GtkWidget *separator;

    vbox = gtk_vbox_new (FALSE, 3);
    gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);

    label = e_clipped_label_new (description);
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);
    gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, TRUE, 0);

    separator = gtk_hseparator_new ();
    gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, TRUE, 0);

    gtk_box_pack_start (GTK_BOX (vbox), widget, TRUE, TRUE, 0);

    gtk_widget_show (label);
    gtk_widget_show (separator);
    gtk_widget_show (widget);
    gtk_widget_show (vbox);

    return vbox;
}

/* Page callbacks.  */

static void
page_changed_callback (EConfigPage *page,
               void *data)
{
    EMultiConfigDialog *dialog;
    EMultiConfigDialogPrivate *priv;

    dialog = E_MULTI_CONFIG_DIALOG (data);
    priv = dialog->priv;

    priv->num_unapplied ++;

    update_buttons (dialog);
}


/* Button handling.  */

static void
cancel (EMultiConfigDialog *dialog)
{
    gnome_dialog_close (GNOME_DIALOG (dialog));
}

static void
apply (EMultiConfigDialog *dialog)
{
    EMultiConfigDialogPrivate *priv;
    GSList *p;

    priv = dialog->priv;

    for (p = priv->pages; p != NULL; p = p->next) {
        const Page *page;

        page = (const Page *) p->data;

        if (! e_config_page_is_applied (page->page_widget)) {
            e_config_page_apply (page->page_widget);
            priv->num_unapplied --;
        }
    }

    g_assert (priv->num_unapplied == 0);
    update_buttons (dialog);
}

static void
ok (EMultiConfigDialog *dialog)
{
    apply (dialog);
    cancel (dialog);
}


/* ETable mess.  */

static int
table_model_column_count (ETableModel *etm,
              void *data)
{
        return 1;
}

static void *
table_model_value_at (ETableModel *etm,
              int col,
              int row,
              void *model_data)
{
    EMultiConfigDialog *dialog;
    EMultiConfigDialogPrivate *priv;
    const Page *page;
    GSList *p;

    dialog = E_MULTI_CONFIG_DIALOG (model_data);
    priv = dialog->priv;

    p = g_slist_nth (priv->pages, row);
    if (p == NULL)
        return NULL;

    page = (const Page *) p->data;
    return page->title;
}

static gboolean
table_model_is_editable (ETableModel *etm,
             int col,
             int row,
             void *model_data)
{
    return FALSE;
}

static void *
table_model_duplicate_value (ETableModel *etm,
                 int col,
                 const void *value,
                 void *data)
{
        return g_strdup (value);
}

static void
table_model_free_value (ETableModel *etm,
            int col,
            void *value,
            void *data)
{
        g_free (value);
}

static void *
table_model_initialize_value (ETableModel *etm,
                  int col,
                  void *data)
{
        return g_strdup ("");
}

static gboolean
table_model_value_is_empty (ETableModel *etm,
                int col,
                const void *value,
                void *data)
{
        return !(value && *(char *)value);
}

static char *
table_model_value_to_string (ETableModel *etm,
                 int col,
                 const void *value,
                 void *data)
{
    return (char *)value;
}


/* ETable signals.  */

static void
table_cursor_change_callback (ETable *etable,
                  int row,
                  void *data)
{
    EMultiConfigDialog *dialog;
    EMultiConfigDialogPrivate *priv;

    dialog = E_MULTI_CONFIG_DIALOG (data);
    priv = dialog->priv;

    gtk_notebook_set_page (GTK_NOTEBOOK (priv->notebook), row);
}


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
    EMultiConfigDialog *dialog;
    EMultiConfigDialogPrivate *priv;
    GSList *p;

    dialog = E_MULTI_CONFIG_DIALOG (object);
    priv = dialog->priv;

    for (p = priv->pages; p != NULL; p = p->next)
        page_free ((Page *) p->data);
    g_slist_free (priv->pages);

    g_free (priv);

    (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


/* GnomeDialog methods.  */

static void
impl_clicked (GnomeDialog *dialog,
          int button_number)
{
    EMultiConfigDialog *multi_config_dialog;
    EMultiConfigDialogPrivate *priv;

    multi_config_dialog = E_MULTI_CONFIG_DIALOG (dialog);
    priv = multi_config_dialog->priv;

    switch (button_number) {
    case 0:         /* OK */
        ok (multi_config_dialog);
        break;
    case 1:         /* Apply */
        apply (multi_config_dialog);
        break;
    case 2:         /* Cancel */
        cancel (multi_config_dialog);
        break;
    default:
        g_assert_not_reached ();
    }
}


/* GTK+ ctors.  */

static void
class_init (EMultiConfigDialogClass *class)
{
    GnomeDialogClass *dialog_class;
    GtkObjectClass *object_class;

    object_class = GTK_OBJECT_CLASS (class);
    object_class->destroy = impl_destroy;

    dialog_class = GNOME_DIALOG_CLASS (class);
    dialog_class->clicked = impl_clicked;

    parent_class = gtk_type_class (PARENT_TYPE);
}

static void
init (EMultiConfigDialog *multi_config_dialog)
{
    EMultiConfigDialogPrivate *priv;
    ETableModel *list_e_table_model;
    GtkWidget *gnome_dialog_vbox;
    GtkWidget *hbox;
    GtkWidget *notebook;
    GtkWidget *list_e_table;

    hbox = gtk_hbox_new (FALSE, 2);
    gnome_dialog_vbox = GNOME_DIALOG (multi_config_dialog)->vbox;
    gtk_container_add (GTK_CONTAINER (gnome_dialog_vbox), hbox);

    list_e_table_model = e_table_memory_callbacks_new (table_model_column_count,
                               table_model_value_at,
                               NULL, /* set_value_at */
                               table_model_is_editable,
                               table_model_duplicate_value,
                               table_model_free_value,
                               table_model_initialize_value,
                               table_model_value_is_empty,
                               table_model_value_to_string,
                               multi_config_dialog);

    list_e_table = e_table_scrolled_new (list_e_table_model, NULL, list_e_table_spec, NULL);
    gtk_signal_connect (GTK_OBJECT (e_table_scrolled_get_table (E_TABLE_SCROLLED (list_e_table))),
                "cursor_change", GTK_SIGNAL_FUNC (table_cursor_change_callback),
                multi_config_dialog);

    gtk_widget_set_usize (list_e_table, 150, -1);

    gtk_box_pack_start (GTK_BOX (hbox), list_e_table, FALSE, TRUE, 0);

    notebook = gtk_notebook_new ();
    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (notebook), FALSE);
    gtk_notebook_set_show_border (GTK_NOTEBOOK (notebook), FALSE);
    gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);

    gtk_widget_show (hbox);
    gtk_widget_show (notebook);
    gtk_widget_show (list_e_table);

    gnome_dialog_append_buttons (GNOME_DIALOG (multi_config_dialog),
                     GNOME_STOCK_BUTTON_OK,
                     GNOME_STOCK_BUTTON_APPLY,
                     GNOME_STOCK_BUTTON_CANCEL,
                     NULL);
    gnome_dialog_set_default (GNOME_DIALOG (multi_config_dialog), 0);

    gtk_window_set_policy (GTK_WINDOW (multi_config_dialog),
                   FALSE /* allow_shrink */,
                   TRUE /* allow_grow */,
                   FALSE /* auto_shrink */);

    priv = g_new (EMultiConfigDialogPrivate, 1);
    priv->pages              = NULL;
    priv->list_e_table       = list_e_table;
    priv->list_e_table_model = list_e_table_model;
    priv->notebook           = notebook;
    priv->num_unapplied      = 0;

    multi_config_dialog->priv = priv;
}


GtkWidget *
e_multi_config_dialog_new (void)
{
    EMultiConfigDialog *dialog;

    dialog = gtk_type_new (e_multi_config_dialog_get_type ());

    return GTK_WIDGET (dialog);
}


void
e_multi_config_dialog_add_page (EMultiConfigDialog *dialog,
                const char *title,
                const char *description,
                GdkPixbuf *icon,
                EConfigPage *page_widget)
{
    EMultiConfigDialogPrivate *priv;
    Page *new_page;

    g_return_if_fail (E_IS_MULTI_CONFIG_DIALOG (dialog));
    g_return_if_fail (title != NULL);
    g_return_if_fail (description != NULL);
    g_return_if_fail (E_IS_CONFIG_PAGE (page_widget));

    priv = dialog->priv;

    new_page = page_new (title, description, icon, page_widget);

    priv->pages = g_slist_append (priv->pages, new_page);

    if (priv->pages->next == NULL) {
        ETable *table;

        /* FIXME: This is supposed to select the first entry by default
           but it doesn't seem to work at all.  */
        table = e_table_scrolled_get_table (E_TABLE_SCROLLED (priv->list_e_table));
        e_table_set_cursor_row (table, 0);
        e_selection_model_select_all (e_table_get_selection_model (table));
    }

    e_table_memory_insert (E_TABLE_MEMORY (priv->list_e_table_model), -1, new_page->title);

    gtk_notebook_append_page (GTK_NOTEBOOK (priv->notebook),
                  create_page_container (new_page->description, GTK_WIDGET (page_widget)),
                  NULL);

    if (! e_config_page_is_applied (page_widget))
        priv->num_unapplied ++;

    gtk_signal_connect (GTK_OBJECT (page_widget), "changed",
                GTK_SIGNAL_FUNC (page_changed_callback), dialog);

    update_buttons (dialog);
}


E_MAKE_TYPE (e_multi_config_dialog, "EMultiConfigDialog", EMultiConfigDialog, class_init, init, PARENT_TYPE)