path: root/widgets/e-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_MINIMUM_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,
                  ETableSortInfo   *sort_info)
{
    etgl->subset = E_TABLE_SUBSET_VARIABLE(e_table_sorted_variable_new (model, full_header, sort_info));
    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,
                  ETableSortInfo   *sort_info)
{
    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, sort_info);
    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)
{
    ETableGroupLeaf *leaf = E_TABLE_GROUP_LEAF(item);
    gtk_object_get(GTK_OBJECT(leaf->item),
               "height", &leaf->height,
               NULL);
    gtk_object_get(GTK_OBJECT(leaf->item),
               "width", &leaf->width,
               NULL);
    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,
                             "minimum_width", etgl->minimum_width,
                             "length_threshold", 200,
                             NULL));
    
    gtk_signal_connect (GTK_OBJECT(etgl->item), "row_selection",
                GTK_SIGNAL_FUNC(etgl_row_selection), etgl);
    e_canvas_item_request_reflow(item);
}

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

static void
etgl_add_all (ETableGroup *etg)
{
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (etg);
    e_table_subset_variable_add_all (etgl->subset);
}

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_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ETableGroup *etg = E_TABLE_GROUP (object);
    ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (object);

    switch (arg_id) {
    case ARG_FROZEN:
        if (GTK_VALUE_BOOL (*arg))
            etg->frozen = TRUE;
        else {
            etg->frozen = FALSE;
        }
        break;
    case ARG_MINIMUM_WIDTH:
        etgl->minimum_width = GTK_VALUE_DOUBLE(*arg);
        if (etgl->item) {
            gnome_canvas_item_set (GNOME_CANVAS_ITEM(etgl->item),
                           "minimum_width", etgl->minimum_width,
                           NULL);
        }
        break;
    default:
        break;
    }
}

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

    switch (arg_id) {
    case ARG_FROZEN:
        GTK_VALUE_BOOL (*arg) = etg->frozen;
        break;
    case ARG_HEIGHT:
        GTK_VALUE_DOUBLE (*arg) = etgl->height;
        break;
    case ARG_WIDTH:
        GTK_VALUE_DOUBLE (*arg) = etgl->width;
        break;
    case ARG_MINIMUM_WIDTH:
        GTK_VALUE_DOUBLE (*arg) = etgl->minimum_width;
        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;
    
    etgl_parent_class = gtk_type_class (PARENT_TYPE);

    e_group_class->add = etgl_add;
    e_group_class->add_all = etgl_add_all;
    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;

    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_READABLE, ARG_WIDTH);
    gtk_object_add_arg_type ("ETableGroupLeaf::minimum_width", GTK_TYPE_DOUBLE,
                 GTK_ARG_READWRITE, ARG_MINIMUM_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->height = 1;
    etgl->minimum_width = 0;

    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);