path: root/widgets/table/e-table-group-leaf.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * E-Table-Group.c: Implements the grouping objects for elements on a table
 *
 * Author:
 *   Miguel de Icaza (miguel@gnu.org()
 *
 * Copyright 1999, Helix Code, Inc.
 */

#include <config.h>
#include <gtk/gtksignal.h>
#include "e-table-group-leaf.h"
#include "e-table-item.h"
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include "e-util/e-util.h"
#include "e-util/e-canvas.h"

#define TITLE_HEIGHT         16
#define GROUP_INDENT         10

#define PARENT_TYPE e_table_group_get_type ()

static GnomeCanvasGroupClass *etgl_parent_class;

/* The arguments we take */
enum {
    ARG_0,
    ARG_HEIGHT,
    ARG_WIDTH,
    ARG_FROZEN
};

static void etgl_set_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void etgl_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);

static void
etgl_destroy (GtkObject *object)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF(object);
    if ( etgl->subset )
        gtk_object_unref(GTK_OBJECT(etgl->subset));
    if ( etgl->item )
        gtk_object_destroy(GTK_OBJECT(etgl->item));
    if ( GTK_OBJECT_CLASS (etgl_parent_class)->destroy )
        GTK_OBJECT_CLASS (etgl_parent_class)->destroy (object);
}

static void
e_table_group_leaf_construct (GnomeCanvasGroup *parent, ETableGroupLeaf *etgl,
                  ETableHeader *full_header,
                  ETableHeader     *header,
                  ETableModel *model,
                  int          col,
                  int          ascending)
{
    etgl->subset = E_TABLE_SUBSET_VARIABLE(e_table_sorted_variable_new(model, col, ascending, e_table_header_get_column(full_header, col)->compare));
    e_table_group_construct (parent, E_TABLE_GROUP (etgl), full_header, header, model);
}

ETableGroup *
e_table_group_leaf_new       (GnomeCanvasGroup *parent, ETableHeader *full_header,
                  ETableHeader     *header,
                  ETableModel *model,
                  int          col,
                  int          ascending)
{
    ETableGroupLeaf *etgl;

    g_return_val_if_fail (parent != NULL, NULL);
    
    etgl = gtk_type_new (e_table_group_leaf_get_type ());

    e_table_group_leaf_construct (parent, etgl, full_header,
                      header, model, col, ascending);
    return E_TABLE_GROUP (etgl);
}

static void
etgl_row_selection (GtkObject *object, gint row, gboolean selected, ETableGroupLeaf *etgl)
{
    if ( row < E_TABLE_SUBSET(etgl->subset)->n_map )
        e_table_group_row_selection (E_TABLE_GROUP(etgl), E_TABLE_SUBSET(etgl->subset)->map_table[row], selected);
}

static void
etgl_reflow (GnomeCanvasItem *item, gint flags)
{
    e_canvas_item_request_parent_reflow(item);
}

static void
etgl_realize (GnomeCanvasItem *item)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF(item);

    if ( GNOME_CANVAS_ITEM_CLASS (etgl_parent_class)->realize )
        GNOME_CANVAS_ITEM_CLASS (etgl_parent_class)->realize (item);

    etgl->item = E_TABLE_ITEM(gnome_canvas_item_new(GNOME_CANVAS_GROUP(etgl),
                            e_table_item_get_type (),
                            "ETableHeader", E_TABLE_GROUP(etgl)->header,
                            "ETableModel", etgl->subset,
                            "drawgrid", TRUE,
                            "drawfocus", TRUE,
                            "spreadsheet", TRUE,
                            "width", etgl->width,
                            NULL));

    gtk_signal_connect(GTK_OBJECT(etgl->item), "row_selection",
               GTK_SIGNAL_FUNC(etgl_row_selection), etgl);
    e_canvas_item_request_parent_reflow(item);
}

static int
etgl_event (GnomeCanvasItem *item, GdkEvent *event)
{
    gboolean return_val = TRUE;

    switch (event->type) {

    default:
        return_val = FALSE;
    }
    if ( return_val == FALSE ) {
        if ( GNOME_CANVAS_ITEM_CLASS(etgl_parent_class)->event )
            return GNOME_CANVAS_ITEM_CLASS(etgl_parent_class)->event(item, event);
    }
    return return_val;

}

static void
etgl_add (ETableGroup *etg, gint row)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    e_table_subset_variable_add(etgl->subset, row);
}

static gboolean
etgl_remove (ETableGroup *etg, gint row)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    return e_table_subset_variable_remove(etgl->subset, row);
}

static void
etgl_increment (ETableGroup *etg, gint position, gint amount)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    e_table_subset_variable_increment(etgl->subset, position, amount);
}

static void
etgl_set_focus (ETableGroup *etg, EFocus direction, gint view_col)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    if (direction == E_FOCUS_END) {
        e_table_item_focus(etgl->item, view_col, e_table_model_row_count(E_TABLE_MODEL(etgl->subset)) - 1);
    } else {
        e_table_item_focus(etgl->item, view_col, 0);
    }
}

static gint
etgl_get_focus_column (ETableGroup *etg)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    return e_table_item_get_focused_column(etgl->item);
}

static void
etgl_set_width (ETableGroup *etg, gdouble width)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    etgl->width = width;
#if 0
    if ( etgl->item ) {
        gnome_canvas_item_set(GNOME_CANVAS_ITEM(etgl->item),
                      "width", width,
                      NULL);
    }       
#endif
}

static gdouble
etgl_get_width (ETableGroup *etg)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    gtk_object_get(GTK_OBJECT(etgl->item),
               "width", &etgl->width,
               NULL);
    return etgl->width;
}

static gdouble
etgl_get_height (ETableGroup *etg)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    gdouble height;
    if ( etgl->item )
        gtk_object_get(GTK_OBJECT(etgl->item),
                   "height", &height,
                   NULL);
    else
        height = 1;
    return height;
}

static void
etgl_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ETableGroup *etg = E_TABLE_GROUP (object);

    switch (arg_id) {
    case ARG_FROZEN:
        if ( GTK_VALUE_BOOL (*arg) )
            etg->frozen = TRUE;
        else {
            etg->frozen = FALSE;
        }
        break;
    case ARG_WIDTH:
        if ( E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->set_width )
            E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->set_width(etg, GTK_VALUE_DOUBLE (*arg));
        break;
    default:
        break;
    }
}

static void
etgl_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ETableGroup *etg = E_TABLE_GROUP (object);

    switch (arg_id) {
    case ARG_FROZEN:
        GTK_VALUE_BOOL (*arg) = etg->frozen;
        break;
    case ARG_HEIGHT:
        if ( E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->get_height )
            GTK_VALUE_DOUBLE (*arg) = E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->get_height(etg);
        else
            arg->type = GTK_TYPE_INVALID;
        break;
    case ARG_WIDTH: 
        if ( E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->get_width )
            GTK_VALUE_DOUBLE (*arg) = E_TABLE_GROUP_CLASS(GTK_OBJECT(etg)->klass)->get_width(etg);
        else
            arg->type = GTK_TYPE_INVALID;
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

static void
etgl_class_init (GtkObjectClass *object_class)
{
    GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
    ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS( object_class );

    object_class->destroy = etgl_destroy;
    object_class->set_arg = etgl_set_arg;
    object_class->get_arg = etgl_get_arg;

    item_class->realize = etgl_realize;
    item_class->event = etgl_event;
    
    etgl_parent_class = gtk_type_class (PARENT_TYPE);

    e_group_class->add = etgl_add;
    e_group_class->remove = etgl_remove;
    e_group_class->increment = etgl_increment;
    e_group_class->set_focus = etgl_set_focus;
    e_group_class->get_focus_column = etgl_get_focus_column;

    e_group_class->get_width = etgl_get_width;
    e_group_class->set_width = etgl_set_width;
    e_group_class->get_height = etgl_get_height;

    gtk_object_add_arg_type ("ETableGroupLeaf::height", GTK_TYPE_DOUBLE, 
                 GTK_ARG_READABLE, ARG_HEIGHT);
    gtk_object_add_arg_type ("ETableGroupLeaf::width", GTK_TYPE_DOUBLE, 
                 GTK_ARG_READWRITE, ARG_WIDTH);
    gtk_object_add_arg_type ("ETableGroupLeaf::frozen", GTK_TYPE_BOOL,
                 GTK_ARG_READWRITE, ARG_FROZEN);
}

static void
etgl_init (GtkObject *object)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (object);

    etgl->width = 1;
    etgl->subset = NULL;
    etgl->item = NULL;
    
    e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(object), etgl_reflow);
}

E_MAKE_TYPE (e_table_group_leaf, "ETableGroupLeaf", ETableGroupLeaf, etgl_class_init, etgl_init, PARENT_TYPE);