path: root/widgets/table/e-cell-hbox.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-cell-hbox.c - Hbox cell object.
 * Copyright 2006 Novell, Inc.
 *
 * Authors:
 *   Srinivasa Ragavan <sragavan@novell.com>
 *
 * A majority of code taken from:
 *
 * the ECellText renderer.
 * Copyright 1999, 2000, Ximian, Inc.
 *
 * 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.
 */

#include <config.h>

#include <ctype.h>
#include <math.h>
#include <stdio.h>

#include <gtk/gtk.h>

/* #include "a11y/e-table/gal-a11y-e-cell-registry.h" */
/* #include "a11y/e-table/gal-a11y-e-cell-vbox.h" */
#include "e-util/e-util.h"

#include "e-cell-hbox.h"
#include "e-table-item.h"

#define PARENT_TYPE e_cell_get_type ()

static ECellClass *parent_class;

#define INDENT_AMOUNT 16
#define MAX_CELL_SIZE 25

/*
 * ECell::new_view method
 */
static ECellView *
ecv_new_view (ECell *ecell, ETableModel *table_model, void *e_table_item_view)
{
    ECellHbox *ecv = E_CELL_HBOX (ecell);
    ECellHboxView *hbox_view = g_new0 (ECellHboxView, 1);
    int i;
    
    hbox_view->cell_view.ecell = ecell;
    hbox_view->cell_view.e_table_model = table_model;
    hbox_view->cell_view.e_table_item_view = e_table_item_view;
        hbox_view->cell_view.kill_view_cb = NULL;
        hbox_view->cell_view.kill_view_cb_data = NULL;
    
    /* create our subcell view */
    hbox_view->subcell_view_count = ecv->subcell_count;
    hbox_view->subcell_views = g_new (ECellView *, hbox_view->subcell_view_count);
    hbox_view->model_cols = g_new (int, hbox_view->subcell_view_count);
    hbox_view->def_size_cols = g_new (int, hbox_view->subcell_view_count);

    for (i = 0; i < hbox_view->subcell_view_count; i++) {
        hbox_view->subcell_views[i] = e_cell_new_view (ecv->subcells[i], table_model, e_table_item_view /* XXX */);
        hbox_view->model_cols[i] = ecv->model_cols[i];
        hbox_view->def_size_cols[i] = ecv->def_size_cols[i];
    }

    return (ECellView *)hbox_view;
}

/*
 * ECell::kill_view method
 */
static void
ecv_kill_view (ECellView *ecv)
{
    ECellHboxView *hbox_view = (ECellHboxView *) ecv;
    int i;

        if (hbox_view->cell_view.kill_view_cb)
            (hbox_view->cell_view.kill_view_cb)(ecv, hbox_view->cell_view.kill_view_cb_data);

        if (hbox_view->cell_view.kill_view_cb_data)
            g_list_free(hbox_view->cell_view.kill_view_cb_data);

    /* kill our subcell view */
    for (i = 0; i < hbox_view->subcell_view_count; i++)
        e_cell_kill_view (hbox_view->subcell_views[i]);

    g_free (hbox_view->model_cols);
    g_free (hbox_view->def_size_cols);
    g_free (hbox_view->subcell_views);
    g_free (hbox_view);
}

/*
 * ECell::realize method
 */
static void
ecv_realize (ECellView *ecell_view)
{
    ECellHboxView *hbox_view = (ECellHboxView *) ecell_view;
    int i;

    /* realize our subcell view */
    for (i = 0; i < hbox_view->subcell_view_count; i++)
        e_cell_realize (hbox_view->subcell_views[i]);

    if (parent_class->realize)
        (* parent_class->realize) (ecell_view);
}

/*
 * ECell::unrealize method
 */
static void
ecv_unrealize (ECellView *ecv)
{
    ECellHboxView *hbox_view = (ECellHboxView *) ecv;
    int i;

    /* unrealize our subcell view. */
    for (i = 0; i < hbox_view->subcell_view_count; i++)
        e_cell_unrealize (hbox_view->subcell_views[i]);

    if (parent_class->unrealize)
        (* parent_class->unrealize) (ecv);
}

/*
 * ECell::draw method
 */
static void
ecv_draw (ECellView *ecell_view, GdkDrawable *drawable,
      int model_col, int view_col, int row, ECellFlags flags,
      int x1, int y1, int x2, int y2)
{
    ECellHboxView *hbox_view = (ECellHboxView *)ecell_view;

    int subcell_offset = 0;
    int i;
    int allotted_width = x2-x1;
    
    for (i = 0; i < hbox_view->subcell_view_count; i++) {
        /* Now cause our subcells to draw their contents,
           shifted by subcell_offset pixels */
        int width = allotted_width * hbox_view->def_size_cols[i] / 100;
            //e_cell_max_width_by_row (hbox_view->subcell_views[i], hbox_view->model_cols[i], view_col, row);
//      if (width < hbox_view->def_size_cols[i])
    //      width = hbox_view->def_size_cols[i];
//      printf("width of %d %d of %d\n", width,hbox_view->def_size_cols[i], allotted_width );
        e_cell_draw (hbox_view->subcell_views[i], drawable,
                 hbox_view->model_cols[i], view_col, row, flags,
                 x1 + subcell_offset , y1, x1 + subcell_offset + width, y2);

        subcell_offset += width; //e_cell_max_width_by_row (hbox_view->subcell_views[i], hbox_view->model_cols[i], view_col, row);
    }
}

/*
 * ECell::event method
 */
static gint
ecv_event (ECellView *ecell_view, GdkEvent *event, int model_col, int view_col, int row, ECellFlags flags, ECellActions *actions)
{
    ECellHboxView *hbox_view = (ECellHboxView *)ecell_view;
    int y = 0;
    int i;
    int subcell_offset = 0;

    switch (event->type) {
    case GDK_BUTTON_PRESS:
    case GDK_BUTTON_RELEASE:
    case GDK_2BUTTON_PRESS:
    case GDK_3BUTTON_PRESS:
        y = event->button.y;
        break;
    case GDK_MOTION_NOTIFY:
        y = event->motion.y;
        break;
    default:
        /* nada */
        break;
    }

    for (i = 0; i < hbox_view->subcell_view_count; i++) {
        int width = e_cell_max_width_by_row (hbox_view->subcell_views[i], hbox_view->model_cols[i], view_col, row);
        if (width < hbox_view->def_size_cols[i])
            width = hbox_view->def_size_cols[i];
        if (y < subcell_offset + width)
            return e_cell_event(hbox_view->subcell_views[i], event, hbox_view->model_cols[i], view_col, row, flags, actions);
        subcell_offset += width;
    }
    return 0;
}

/*
 * ECell::height method
 */
static int
ecv_height (ECellView *ecell_view, int model_col, int view_col, int row) 
{
    ECellHboxView *hbox_view = (ECellHboxView *)ecell_view;
    int height = 0, max_height = 0;
    int i;

    for (i = 0; i < hbox_view->subcell_view_count; i++) {
        height = e_cell_height (hbox_view->subcell_views[i], hbox_view->model_cols[i], view_col, row);
        max_height = MAX(max_height, height);
    }
    return max_height;
}

/*
 * ECell::max_width method
 */
static int
ecv_max_width (ECellView *ecell_view, int model_col, int view_col)
{
    ECellHboxView *hbox_view = (ECellHboxView *)ecell_view;
    int width = 0;
    int i;

    for (i = 0; i < hbox_view->subcell_view_count; i++) {
        int cell_width = e_cell_max_width (hbox_view->subcell_views[i], hbox_view->model_cols[i], view_col);
        
        if (cell_width < hbox_view->def_size_cols[i])
            cell_width = hbox_view->def_size_cols[i];   
        width += cell_width;
    }

    return width;
}

/*
 * GObject::dispose method
 */
static void
ecv_dispose (GObject *object)
{
    ECellHbox *ecv = E_CELL_HBOX (object);
    int i;

    /* destroy our subcell */
    for (i = 0; i < ecv->subcell_count; i++)
        if (ecv->subcells[i])
            g_object_unref (ecv->subcells[i]);
    g_free (ecv->subcells);
    ecv->subcells = NULL;
    ecv->subcell_count = 0;

    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
e_cell_hbox_class_init (GObjectClass *object_class)
{
    ECellClass *ecc = (ECellClass *) object_class;

    object_class->dispose = ecv_dispose;

    ecc->new_view         = ecv_new_view;
    ecc->kill_view        = ecv_kill_view;
    ecc->realize          = ecv_realize;
    ecc->unrealize        = ecv_unrealize;
    ecc->draw             = ecv_draw;
    ecc->event            = ecv_event;
    ecc->height           = ecv_height;

    ecc->max_width        = ecv_max_width;

    parent_class = g_type_class_ref (PARENT_TYPE);

/*  gal_a11y_e_cell_registry_add_cell_type (NULL, E_CELL_HBOX_TYPE, gal_a11y_e_cell_hbox_new); */
}

static void
e_cell_hbox_init (GtkObject *object)
{
    ECellHbox *ecv = E_CELL_HBOX (object);

    ecv->subcells = NULL;
    ecv->subcell_count = 0;
}

E_MAKE_TYPE(e_cell_hbox, "ECellHbox", ECellHbox, e_cell_hbox_class_init, e_cell_hbox_init, PARENT_TYPE)

/**
 * e_cell_hbox_new:
 * 
 * Creates a new ECell renderer that can be used to render multiple
 * child cells.
 * 
 * Return value: an ECell object that can be used to render multiple
 * child cells.
 **/
ECell *
e_cell_hbox_new (void)
{
    ECellHbox *ecv = g_object_new (E_CELL_HBOX_TYPE, NULL);

    return (ECell *) ecv;
}

void
e_cell_hbox_append (ECellHbox *hbox, ECell *subcell, int model_col, int size)
{
    hbox->subcell_count ++;

    hbox->subcells   = g_renew (ECell *, hbox->subcells,   hbox->subcell_count);
    hbox->model_cols = g_renew (int,     hbox->model_cols, hbox->subcell_count);
    hbox->def_size_cols = g_renew (int,     hbox->def_size_cols, hbox->subcell_count);
    
    hbox->subcells[hbox->subcell_count - 1]   = subcell;
    hbox->model_cols[hbox->subcell_count - 1] = model_col;
    hbox->def_size_cols[hbox->subcell_count - 1] = size;

    if (subcell)
        g_object_ref (subcell);
}