File: rbgtk-box.c

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/* -*- c-file-style: "ruby"; indent-tabs-mode: nil -*- */
/*
 *  Copyright (C) 2011  Ruby-GNOME2 Project Team
 *  Copyright (C) 2002-2005 Ruby-GNOME2 Project Team
 *  Copyright (C) 1998-2000 Yukihiro Matsumoto,
 *                          Daisuke Kanda,
 *                          Hiroshi Igarashi
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA  02110-1301  USA
 */

#include "rbgtk3private.h"

#define RG_TARGET_NAMESPACE cBox
#define _SELF(self) (RVAL2GTKBOX(self))

static VALUE
rg_initialize(int argc, VALUE *argv, VALUE self)
{
    VALUE orientation, spacing;

    rb_scan_args(argc, argv, "11", &orientation, &spacing);

    RBGTK_INITIALIZE(self, gtk_box_new(RVAL2GTKORIENTATION(orientation),
                                       NIL_P(spacing) ? 0 : NUM2INT(spacing)));

    return Qnil;
}

static void
box_pack_start_or_end(int argc, VALUE *argv, VALUE self, void (*func)(GtkBox *, GtkWidget *, gboolean, gboolean, guint))
{
    VALUE options, child, expand, fill, padding;

    rb_scan_args(argc, argv, "11", &child, &options);
    rbg_scan_options(options,
                     "expand", &expand,
                     "fill", &fill,
                     "padding", &padding,
                     NULL);

    func(_SELF(self),
         RVAL2GTKWIDGET(child),
         NIL_P(expand) ? TRUE : RVAL2CBOOL(expand),
         NIL_P(fill) ? TRUE : RVAL2CBOOL(fill),
         NIL_P(padding) ? 0 : NUM2UINT(padding));
    G_CHILD_ADD(self, child);
}

static VALUE
rg_pack_start(int argc, VALUE *argv, VALUE self)
{
    box_pack_start_or_end(argc, argv, self, gtk_box_pack_start);
    return self;
}

static VALUE
rg_pack_end(int argc, VALUE *argv, VALUE self)
{
    box_pack_start_or_end(argc, argv, self, gtk_box_pack_end);
    return self;
}

static VALUE
rg_reorder_child(VALUE self, VALUE child, VALUE pos)
{
    gtk_box_reorder_child(_SELF(self),
                          RVAL2GTKWIDGET(child), NUM2INT(pos));
    return self;
}

static VALUE
rg_query_child_packing(VALUE self, VALUE child)
{
    gboolean expand, fill;
    guint padding;
    GtkPackType pack_type;
    VALUE ary;

    gtk_box_query_child_packing(_SELF(self), 
                                RVAL2GTKWIDGET(child),
                                &expand, &fill, &padding, &pack_type);

    ary = rb_ary_new2(4);
    rb_ary_push(ary, expand == FALSE ? Qfalse : Qtrue);
    rb_ary_push(ary, fill == FALSE ? Qfalse : Qtrue);
    rb_ary_push(ary, INT2NUM(padding));
    rb_ary_push(ary, GTKPACKTYPE2RVAL(pack_type));

    return ary;
}

static VALUE
rg_set_child_packing(int argc, VALUE *argv, VALUE self)
{
    VALUE options, child, expand, fill, padding, pack_type;
    gboolean old_expand, old_fill;
    guint old_padding;
    GtkPackType old_pack_type;

    rb_scan_args(argc, argv, "11", &child, &options);
    rbg_scan_options(options,
                     "expand", &expand,
                     "fill", &fill,
                     "padding", &padding,
                     "pack_type", &pack_type,
                     NULL);

    gtk_box_query_child_packing(_SELF(self), 
                                RVAL2GTKWIDGET(child),
                                &old_expand, &old_fill, &old_padding, &old_pack_type);
    gtk_box_set_child_packing(_SELF(self), 
                              RVAL2GTKWIDGET(child),
                              NIL_P(expand) ? old_expand : RVAL2CBOOL(expand),
                              NIL_P(fill) ? old_fill : RVAL2CBOOL(fill),
                              NIL_P(padding) ? old_padding : NUM2UINT(padding),
                              NIL_P(pack_type) ? old_pack_type : (GtkPackType)RVAL2GTKPACKTYPE(pack_type));

    return self;
}

void
Init_gtk_box(VALUE mGtk)
{
    VALUE RG_TARGET_NAMESPACE = G_DEF_CLASS(GTK_TYPE_BOX, "Box", mGtk);

    RG_DEF_METHOD(initialize, -1);
    RG_DEF_METHOD(pack_start, -1);
    RG_DEF_METHOD(pack_end, -1);
    RG_DEF_METHOD(reorder_child, 2);
    RG_DEF_METHOD(query_child_packing, 1);
    RG_DEF_METHOD(set_child_packing, -1);
}