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path: root/widgets/table/e-table-config.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-table-config.c
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Chris Lahey <clahey@ximian.com>
 *   Miguel de Icaza <miguel@ximian.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License, version 2, as published by the Free Software Foundation.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */
/*
 * FIXME:
 *    Sort Dialog: when text is selected, the toggle button switches state.
 *    Make Clear all work.
 */

#include <config.h>

#include "e-table-config.h"

#include <stdlib.h>
#include <string.h>
#include <gtk/gtkentry.h>
#include <gtk/gtklabel.h>
#include <gtk/gtknotebook.h>
#include <gtk/gtksignal.h>
#include <gtk/gtktogglebutton.h>
#include <libgnomeui/gnome-dialog.h>
#include <libgnomeui/gnome-propertybox.h>
#include <glade/glade.h>
#include "gal/util/e-util.h"
#include "gal/util/e-i18n.h"


#define PARENT_TYPE (gtk_object_get_type())

static GtkObjectClass *config_parent_class;

enum {
    CHANGED,
    LAST_SIGNAL
};

enum {
    ARG_0,
    ARG_STATE,
};

static guint e_table_config_signals [LAST_SIGNAL] = { 0, };

static void
config_destroy (GtkObject *object)
{
    ETableConfig *config = E_TABLE_CONFIG (object);

    gtk_object_destroy (GTK_OBJECT (config->state));
    gtk_object_unref (GTK_OBJECT (config->source_state));
    gtk_object_unref (GTK_OBJECT (config->source_spec));
    g_free (config->header);

    g_slist_free (config->column_names);
    config->column_names = NULL;
    
    GTK_OBJECT_CLASS (config_parent_class)->destroy (object);
}

static void
config_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    ETableConfig *config = E_TABLE_CONFIG (o);

    switch (arg_id){
    case ARG_STATE:
        GTK_VALUE_OBJECT (*arg) = (GtkObject *) config->state;
        break;

    default:
        break;
    }
}

static void
e_table_config_changed (ETableConfig *config, ETableState *state)
{
    g_return_if_fail (config != NULL);
    g_return_if_fail (E_IS_TABLE_CONFIG (config));

    
    gtk_signal_emit(GTK_OBJECT(config),
            e_table_config_signals [CHANGED],
            state);
}

static void
config_class_init (GtkObjectClass *object_class)
{
    ETableConfigClass *klass = E_TABLE_CONFIG_CLASS(object_class);

    config_parent_class   = gtk_type_class (PARENT_TYPE);
    
    klass->changed        = NULL;

    object_class->get_arg = config_get_arg;
    object_class->destroy = config_destroy;

    e_table_config_signals [CHANGED] =
        gtk_signal_new ("changed",
                GTK_RUN_LAST,
                E_OBJECT_CLASS_TYPE (object_class),
                GTK_SIGNAL_OFFSET (ETableConfigClass, changed),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    E_OBJECT_CLASS_ADD_SIGNALS (object_class, e_table_config_signals, LAST_SIGNAL);

    gtk_object_add_arg_type ("ETableConfig::state", E_TABLE_STATE_TYPE,
                 GTK_ARG_READABLE, ARG_STATE);
}

static ETableColumnSpecification *
find_column_in_spec (ETableSpecification *spec, int model_col)
{
    ETableColumnSpecification **column;

    for (column = spec->columns; *column; column++){
        if ((*column)->disabled)
            continue;
        if ((*column)->model_col != model_col)
            continue;

        return *column;
    }

    return NULL;
}

static int
find_model_column_by_name (ETableSpecification *spec, const char *s)
{
    ETableColumnSpecification **column;

    for (column = spec->columns; *column; column++){

        if ((*column)->disabled)
            continue;
        if (g_strcasecmp ((*column)->title, s) == 0)
            return (*column)->model_col;
    }
    return -1;
}

static void
update_sort_and_group_config_dialog (ETableConfig *config, gboolean is_sort)
{
    ETableConfigSortWidgets *widgets;
    int count, i;

    if (is_sort){
        count = e_table_sort_info_sorting_get_count (
            config->temp_state->sort_info);
        widgets = &config->sort [0];
    } else {
        count = e_table_sort_info_grouping_get_count (
            config->temp_state->sort_info);
        widgets = &config->group [0];
    }
    
    for (i = 0; i < 4; i++){
        gboolean sensitive = (i <= count);
        char *text = "";
        
        gtk_widget_set_sensitive (widgets [i].frames, sensitive);

        /*
         * Sorting is set, auto select the text
         */
        gtk_signal_handler_block (
            GTK_OBJECT (widgets [i].radio_ascending),
            widgets [i].toggled_id);
        gtk_signal_handler_block (
            GTK_OBJECT (widgets [i].combo->entry),
            widgets [i].changed_id);
        
        if (i < count){
            GtkToggleButton *a, *d;
            ETableSortColumn col =
                is_sort
                ? e_table_sort_info_sorting_get_nth (
                    config->temp_state->sort_info,
                    i)
                :  e_table_sort_info_grouping_get_nth (
                    config->temp_state->sort_info,
                    i);
            
            ETableColumnSpecification *column =
                find_column_in_spec (config->source_spec, col.column);

            if (!column){
                /*
                 * This is a bug in the programmer
                 * stuff, but by the time we arrive
                 * here, the user has been given a
                 * warning
                 */
                continue;
            }

            text = gettext (column->title);

            /*
             * Update radio buttons
             */
            a = GTK_TOGGLE_BUTTON (
                widgets [i].radio_ascending);
            d = GTK_TOGGLE_BUTTON (
                widgets [i].radio_descending);
            
            gtk_toggle_button_set_active (col.ascending ? a:d, 1);
        } else {
            GtkToggleButton *t;
            
            t = GTK_TOGGLE_BUTTON (
                widgets [i].radio_ascending);

            if (is_sort)
                g_assert (widgets [i].radio_ascending != config->group [i].radio_ascending);
            else
                g_assert (widgets [i].radio_ascending != config->sort [i].radio_ascending);
            gtk_toggle_button_set_active (t, 1);
        }

        /* Set the text */
        gtk_combo_text_set_text (widgets [i].combo, text);

        gtk_signal_handler_unblock (
            GTK_OBJECT (widgets [i].radio_ascending),
            widgets [i].toggled_id);
        gtk_signal_handler_unblock (
            GTK_OBJECT (widgets [i].combo->entry),
            widgets [i].changed_id);
    }
}

static void
config_sort_info_update (ETableConfig *config)
{
    ETableSortInfo *info = config->state->sort_info;
    GString *res;
    int count, i;

    count = e_table_sort_info_sorting_get_count (info);
    res = g_string_new ("");

    for (i = 0; i < count; i++) {
        ETableSortColumn col = e_table_sort_info_sorting_get_nth (info, i);
        ETableColumnSpecification *column;
        
        column = find_column_in_spec (config->source_spec, col.column);
        if (!column){
            g_warning ("Could not find column model in specification");
            continue;
        }
        
        g_string_append (res, gettext ((column)->title));
        g_string_append_c (res, ' ');
        g_string_append (
            res,
            col.ascending ?
            _("(Ascending)") : _("(Descending)"));

        if ((i + 1) != count)
            g_string_append (res, ", ");
    }
    
    if (res->str [0] == 0)
        g_string_append (res, _("Not sorted"));
    
    gtk_label_set_text (GTK_LABEL(config->sort_label), res->str);

    g_string_free (res, TRUE);
}

static void
config_group_info_update (ETableConfig *config)
{
    ETableSortInfo *info = config->state->sort_info;
    GString *res;
    int count, i;

    if (!e_table_sort_info_get_can_group (info))
        return;

    count = e_table_sort_info_grouping_get_count (info);
    res = g_string_new ("");

    for (i = 0; i < count; i++) {
        ETableSortColumn col = e_table_sort_info_grouping_get_nth (info, i);
        ETableColumnSpecification *column;

        column = find_column_in_spec (config->source_spec, col.column);
        if (!column){
            g_warning ("Could not find model column in specification");
            continue;
        }
        
        g_string_append (res, gettext ((column)->title));
        g_string_append_c (res, ' ');
        g_string_append (
            res,
            col.ascending ?
            _("(Ascending)") : _("(Descending)"));

        if ((i+1) != count)
            g_string_append (res, ", ");
    }
    if (res->str [0] == 0)
        g_string_append (res, _("No grouping"));

    gtk_label_set_text (GTK_LABEL (config->group_label), res->str);
    g_string_free (res, TRUE);
}

static void
config_fields_info_update (ETableConfig *config)
{
    ETableColumnSpecification **column;
    GString *res = g_string_new ("");
    int i;

    return;

    for (i = 0; i < config->state->col_count; i++){
        for (column = config->source_spec->columns; *column; column++){

            if ((*column)->disabled)
                continue;

            if (config->state->columns [i] != (*column)->model_col)
                continue;
            
            g_string_append (res, gettext ((*column)->title));
            if (column [1])
                g_string_append (res, ", ");
        }
    }
    
    gtk_label_set_text (GTK_LABEL (config->fields_label), res->str);
    g_string_free (res, TRUE);
}

static void
do_sort_and_group_config_dialog (ETableConfig *config, gboolean is_sort)
{
    GnomeDialog *dialog;
    int button, running = 1;

    config->temp_state = e_table_state_duplicate (config->state);

    update_sort_and_group_config_dialog (config, is_sort);

    gtk_widget_grab_focus (GTK_WIDGET (
        is_sort
        ? config->sort [0].combo
        : config->group [0].combo));
        

    if (is_sort)
        dialog = GNOME_DIALOG (config->dialog_sort);
    else
        dialog = GNOME_DIALOG (config->dialog_group_by);
    
    do {
        button = gnome_dialog_run (dialog);
        switch (button){
        case 0:
            if (is_sort){
                e_table_sort_info_sorting_truncate (
                    config->state->sort_info, 0);
            } else {
                e_table_sort_info_grouping_truncate (
                    config->state->sort_info, 0);
            }
            update_sort_and_group_config_dialog (config, is_sort);
            continue;

            /* OK */
        case 1:
            gtk_object_unref (GTK_OBJECT (config->state));
            config->state = config->temp_state;
            config->temp_state = 0;
            running = 0;
            gnome_property_box_changed (
                GNOME_PROPERTY_BOX (config->dialog_toplevel));
            break;

            /* CANCEL */
        case 2:
            gtk_object_unref (GTK_OBJECT (config->temp_state));
            config->temp_state = 0;
            running = 0;
            break;
        }
        
    } while (running);
    gnome_dialog_close (GNOME_DIALOG (dialog));

    if (is_sort)
        config_sort_info_update (config);
    else
        config_group_info_update (config);
}

GtkWidget *e_table_proxy_etable_new (void);

GtkWidget *
e_table_proxy_etable_new (void)
{
    return gtk_label_new ("Field selection dialog not\nimplemented here yet.");
}

static void
config_button_fields (GtkWidget *widget, ETableConfig *config)
{
    gnome_dialog_run (GNOME_DIALOG(config->dialog_show_fields));
    gnome_dialog_close (GNOME_DIALOG (config->dialog_show_fields));
}
        
static void
config_button_sort (GtkWidget *widget, ETableConfig *config)
{
    do_sort_and_group_config_dialog (config, TRUE);
}

static void
config_button_group (GtkWidget *widget, ETableConfig *config)
{
    do_sort_and_group_config_dialog (config, FALSE);
}

static void
dialog_destroyed (GtkObject *dialog, ETableConfig *config)
{
    gtk_object_destroy (GTK_OBJECT (config));
}

static void
dialog_apply (GnomePropertyBox *pbox, gint page_num, ETableConfig *config)
{
    if (page_num != -1)
        return;

    e_table_config_changed (config, config->state);
}

/*
 * Invoked by the Glade auto-connect code
 */
GtkWidget *e_table_proxy_gtk_combo_text_new (void);
GtkWidget *
e_table_proxy_gtk_combo_text_new (void)
{
    return gtk_combo_text_new (TRUE);
}

#if 0
static GtkWidget *
configure_dialog (GladeXML *gui, const char *widget_name, ETableConfig *config)
{
    GtkWidget *w;
    
    w = glade_xml_get_widget (gui, widget_name);

    return w;
}
#endif

static void
connect_button (ETableConfig *config, GladeXML *gui, const char *widget_name, void *cback)
{
    GtkWidget *button = glade_xml_get_widget (gui, widget_name);

    if (button) {
        gtk_signal_connect (GTK_OBJECT (button), "clicked",
                    GTK_SIGNAL_FUNC (cback), config);
    }
}

static void
sort_entry_changed (GtkEntry *entry, ETableConfigSortWidgets *sort)
{
    ETableConfig *config = sort->e_table_config;
    ETableSortInfo *sort_info = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->sort[0];
    int idx = sort - base;
    
    char *s = gtk_entry_get_text (entry);

    if (s && s [0] && g_hash_table_lookup (sort->combo->elements, s)){
        ETableSortColumn c;
        int col;
        
        col = find_model_column_by_name (config->source_spec, s);
        if (col == -1){
            g_warning ("sort: This should not happen (%s)", s);
            return;
        }

        c.ascending = GTK_TOGGLE_BUTTON (
            config->sort [idx].radio_ascending)->active;
        c.column = col;
        e_table_sort_info_sorting_set_nth (sort_info, idx, c);
          
        update_sort_and_group_config_dialog (config, TRUE);
    }  else {
        e_table_sort_info_sorting_truncate (sort_info, idx);
        update_sort_and_group_config_dialog (config, TRUE);
    }
}

static void
sort_ascending_toggled (GtkToggleButton *t, ETableConfigSortWidgets *sort)
{
    ETableConfig *config = sort->e_table_config;
    ETableSortInfo *si = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->sort[0];
    int idx = sort - base;
    ETableSortColumn c;
    
    c = e_table_sort_info_sorting_get_nth (si, idx);
    c.ascending = t->active;
    e_table_sort_info_sorting_set_nth (si, idx, c);
}

static void
configure_sort_dialog (ETableConfig *config, GladeXML *gui)
{
    GSList *l;
    int i;
    
    for (i = 0; i < 4; i++){
        char buffer [80];

        snprintf (buffer, sizeof (buffer), "sort-combo-%d", i + 1);
        config->sort [i].combo = GTK_COMBO_TEXT (
            glade_xml_get_widget (gui, buffer));

        gtk_combo_text_add_item (config->sort [i].combo, "", "");

        snprintf (buffer, sizeof (buffer), "frame-sort-%d", i + 1);
        config->sort [i].frames = 
            glade_xml_get_widget (gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-ascending-sort-%d", i+1);
        config->sort [i].radio_ascending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-descending-sort-%d", i+1);
        config->sort [i].radio_descending = glade_xml_get_widget (
            gui, buffer);

        config->sort [i].e_table_config = config;
    }

    for (l = config->column_names; l; l = l->next){
        char *label = l->data;

        for (i = 0; i < 4; i++){
            gtk_combo_text_add_item (
                config->sort [i].combo,
                gettext (label), label);
        }
    }

    /*
     * After we have runtime modified things, signal connect
     */
    for (i = 0; i < 4; i++){
        config->sort [i].changed_id = gtk_signal_connect (
            GTK_OBJECT (config->sort [i].combo->entry),
            "changed", sort_entry_changed, &config->sort [i]);

        config->sort [i].toggled_id = gtk_signal_connect (
            GTK_OBJECT (config->sort [i].radio_ascending),
            "toggled", sort_ascending_toggled, &config->sort [i]);
    }
}

static void
group_entry_changed (GtkEntry *entry, ETableConfigSortWidgets *group)
{
    ETableConfig *config = group->e_table_config;
    ETableSortInfo *sort_info = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->group[0];
    int idx = group - base;
    char *s = gtk_entry_get_text (entry);

    if (s && s [0] && g_hash_table_lookup (group->combo->elements, s)){
        ETableSortColumn c;
        int col;
        
        col = find_model_column_by_name (config->source_spec, s);
        if (col == -1){
            g_warning ("grouping: this should not happen, %s", s);
            return;
        }

        c.ascending = GTK_TOGGLE_BUTTON (
            config->group [idx].radio_ascending)->active;
        c.column = col;
        e_table_sort_info_grouping_set_nth (sort_info, idx, c);
          
        update_sort_and_group_config_dialog (config, FALSE);
    }  else {
        e_table_sort_info_grouping_truncate (sort_info, idx);
        update_sort_and_group_config_dialog (config, FALSE);
    }
}

static void
group_ascending_toggled (GtkToggleButton *t, ETableConfigSortWidgets *group)
{
    ETableConfig *config = group->e_table_config;
    ETableSortInfo *si = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->group[0];
    int idx = group - base;
    ETableSortColumn c;
    
    c = e_table_sort_info_grouping_get_nth (si, idx);
    c.ascending = t->active;
    e_table_sort_info_grouping_set_nth (si, idx, c);
}

static void
configure_group_dialog (ETableConfig *config, GladeXML *gui)
{
    GSList *l;
    int i;
    
    for (i = 0; i < 4; i++){
        char buffer [80];

        snprintf (buffer, sizeof (buffer), "group-combo-%d", i + 1);
        config->group [i].combo = GTK_COMBO_TEXT (
            glade_xml_get_widget (gui, buffer));

        gtk_combo_text_add_item (config->group [i].combo, "", "");

        snprintf (buffer, sizeof (buffer), "frame-group-%d", i + 1);
        config->group [i].frames = 
            glade_xml_get_widget (gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-ascending-group-%d", i+1);
        config->group [i].radio_ascending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-descending-group-%d", i+1);
        config->group [i].radio_descending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "checkbutton-group-%d", i+1);
        config->group [i].view_check = glade_xml_get_widget (
            gui, buffer);
        
        config->group [i].e_table_config = config;
    }

    
    for (l = config->column_names; l; l = l->next){
        char *label = l->data;

        for (i = 0; i < 4; i++){
            gtk_combo_text_add_item (
                config->group [i].combo,
                gettext (label), label);
        }
    }

    /*
     * After we have runtime modified things, signal connect
     */
    for (i = 0; i < 4; i++){
        config->group [i].changed_id = gtk_signal_connect (
            GTK_OBJECT (config->group [i].combo->entry),
            "changed", group_entry_changed, &config->group [i]);

        config->group [i].toggled_id = gtk_signal_connect (
            GTK_OBJECT (config->group [i].radio_ascending),
            "toggled", group_ascending_toggled, &config->group [i]);
    }
}

static void
setup_gui (ETableConfig *config)
{
    GladeXML *gui;

    if (e_table_sort_info_get_can_group (config->state->sort_info)) {
        gui = glade_xml_new_with_domain (ETABLE_GLADEDIR "/e-table-config.glade", NULL, PACKAGE);
    } else {
        gui = glade_xml_new_with_domain (ETABLE_GLADEDIR "/e-table-config-no-group.glade", NULL, PACKAGE);
    }
    
    config->dialog_toplevel = glade_xml_get_widget (
        gui, "e-table-config");

    if (config->header)
        gtk_window_set_title (GTK_WINDOW (config->dialog_toplevel), config->header);

    gtk_widget_hide (GNOME_PROPERTY_BOX(config->dialog_toplevel)->help_button);

    gtk_notebook_set_show_tabs (
        GTK_NOTEBOOK (GNOME_PROPERTY_BOX (
            config->dialog_toplevel)->notebook),
        FALSE);
    
    config->dialog_show_fields = glade_xml_get_widget (
        gui, "dialog-show-fields");
    config->dialog_group_by =  glade_xml_get_widget (
        gui, "dialog-group-by");
    config->dialog_sort = glade_xml_get_widget (
        gui, "dialog-sort");

    config->sort_label = glade_xml_get_widget (
        gui, "label-sort");
    config->group_label = glade_xml_get_widget (
        gui, "label-group");
    config->fields_label = glade_xml_get_widget (
        gui, "label-fields");

    connect_button (config, gui, "button-sort", config_button_sort);
    connect_button (config, gui, "button-group", config_button_group);
    connect_button (config, gui, "button-fields", config_button_fields);
    
    configure_sort_dialog (config, gui);
    configure_group_dialog (config, gui);
    
    gtk_signal_connect (
        GTK_OBJECT (config->dialog_toplevel), "destroy",
        GTK_SIGNAL_FUNC (dialog_destroyed), config);

    gtk_signal_connect (
        GTK_OBJECT (config->dialog_toplevel), "apply",
        GTK_SIGNAL_FUNC (dialog_apply), config);

    gtk_object_unref (GTK_OBJECT (gui));
}

static void
config_init (ETableConfig *config)
{
    glade_gnome_init ();
}

ETableConfig *
e_table_config_construct (ETableConfig        *config,
              const char          *header,
              ETableSpecification *spec,
              ETableState         *state)
{
    ETableColumnSpecification **column;

    g_return_val_if_fail (config != NULL, NULL);
    g_return_val_if_fail (header != NULL, NULL);
    g_return_val_if_fail (spec != NULL, NULL);
    g_return_val_if_fail (state != NULL, NULL);
    
    config->source_spec = spec;
    config->source_state = state;
    config->header = g_strdup (header);

    gtk_object_ref (GTK_OBJECT (config->source_spec));
    gtk_object_ref (GTK_OBJECT (config->source_state));

    config->state = e_table_state_duplicate (state);

    for (column = config->source_spec->columns; *column; column++){
        char *label = (*column)->title;

        if ((*column)->disabled)
            continue;

        config->column_names = g_slist_append (
            config->column_names, label);
    }

    setup_gui (config);

    config_sort_info_update   (config);
    config_group_info_update  (config);
    config_fields_info_update (config);
    
    return E_TABLE_CONFIG (config);
}

/**
 * e_table_config_new:
 * @header: The title of the dialog for the ETableConfig.
 * @spec: The specification for the columns to allow.
 * @state: The current state of the configuration.
 *
 * Creates a new ETable config object.
 *
 * Returns: The config object.
 */
ETableConfig *
e_table_config_new (const char          *header,
            ETableSpecification *spec,
            ETableState         *state)
{
    ETableConfig *config = gtk_type_new (E_TABLE_CONFIG_TYPE);

    if (e_table_config_construct (config, header, spec, state) == NULL){
        gtk_object_destroy (GTK_OBJECT (config));
        return NULL;
    }

    gtk_widget_show (config->dialog_toplevel);
    return E_TABLE_CONFIG (config);
}

/**
 * e_table_config_raise:
 * @config: The ETableConfig object.
 *
 * Raises the dialog associated with this ETableConfig object.
 */
void
e_table_config_raise (ETableConfig *config)
{
    gdk_window_raise (GTK_WIDGET (config->dialog_toplevel)->window);
}

E_MAKE_TYPE(e_table_config, "ETableConfig", ETableConfig, config_class_init, config_init, PARENT_TYPE);