/*
 *  @(#) $Id: gwyvectorlayer.h 6698 2006-09-28 21:50:13Z yeti-dn $
 *  Copyright (C) 2003-2006 David Necas (Yeti), Petr Klapetek.
 *  E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
 */

#ifndef __GWY_VECTOR_LAYER_H__
#define __GWY_VECTOR_LAYER_H__

#include <gdk/gdk.h>
#include <libdraw/gwydrawenums.h>
#include <libdraw/gwyselection.h>
#include <libgwydgets/gwydataviewlayer.h>

G_BEGIN_DECLS

#define GWY_TYPE_VECTOR_LAYER            (gwy_vector_layer_get_type())
#define GWY_VECTOR_LAYER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), GWY_TYPE_VECTOR_LAYER, GwyVectorLayer))
#define GWY_VECTOR_LAYER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), GWY_TYPE_VECTOR_LAYER, GwyVectorLayerClass))
#define GWY_IS_VECTOR_LAYER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), GWY_TYPE_VECTOR_LAYER))
#define GWY_IS_VECTOR_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GWY_TYPE_VECTOR_LAYER))
#define GWY_VECTOR_LAYER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), GWY_TYPE_VECTOR_LAYER, GwyVectorLayerClass))

typedef struct _GwyVectorLayer      GwyVectorLayer;
typedef struct _GwyVectorLayerClass GwyVectorLayerClass;

struct _GwyVectorLayer {
    GwyDataViewLayer parent_instance;

    GdkGC *gc;
    PangoLayout *layout;

    GwySelection *selection;
    GQuark selection_key;
    gulong item_changed_id;
    gulong selection_changed_id;
    gulong handler_id;

    gboolean editable;
    gint focus;

    gint button;    /* XXX: duplicates @selecting? */
    gint selecting;
    gint chosen;
    gint integer1;

    gpointer reserved1;
    gpointer reserved2;
};

struct _GwyVectorLayerClass {
    GwyDataViewLayerClass parent_class;

    GType selection_type;

    /* Signals */
    gboolean (*object_chosen)(GwyVectorLayer *layer,
                              gint id);

    /* Virtual table */
    void (*draw)(GwyVectorLayer *layer,
                 GdkDrawable *drawable,
                 GwyRenderingTarget target);
    gboolean (*button_press)(GwyVectorLayer *layer,
                             GdkEventButton *event);
    gboolean (*button_release)(GwyVectorLayer *layer,
                               GdkEventButton *event);
    gboolean (*motion_notify)(GwyVectorLayer *layer,
                              GdkEventMotion *event);
    gboolean (*key_press)(GwyVectorLayer *layer,
                          GdkEventKey *event);
    gboolean (*key_release)(GwyVectorLayer *layer,
                            GdkEventKey *event);
    gboolean (*set_focus)(GwyVectorLayer *layer,
                          gint object);

    void (*reserved1)(void);
    void (*reserved2)(void);
    void (*reserved3)(void);
    void (*reserved4)(void);
};

GType         gwy_vector_layer_get_type         (void) G_GNUC_CONST;
GType  gwy_vector_layer_class_get_selection_type(GwyVectorLayerClass *klass);

#define gwy_vector_layer_get_selection_type(layer) \
    gwy_vector_layer_class_get_selection_type(GWY_VECTOR_LAYER_GET_CLASS(layer))

void          gwy_vector_layer_set_selection_key(GwyVectorLayer *layer,
                                                 const gchar *key);
const gchar*  gwy_vector_layer_get_selection_key(GwyVectorLayer *layer);
GwySelection* gwy_vector_layer_ensure_selection (GwyVectorLayer *layer);
gint          gwy_vector_layer_get_focus        (GwyVectorLayer *layer);
gboolean      gwy_vector_layer_set_focus        (GwyVectorLayer *layer,
                                                 gint focus);
gboolean      gwy_vector_layer_get_editable     (GwyVectorLayer *layer);
void          gwy_vector_layer_set_editable     (GwyVectorLayer *layer,
                                                 gboolean editable);

void          gwy_vector_layer_draw             (GwyVectorLayer *layer,
                                                 GdkDrawable *drawable,
                                                 GwyRenderingTarget target);
gboolean      gwy_vector_layer_button_press     (GwyVectorLayer *layer,
                                                 GdkEventButton *event);
gboolean      gwy_vector_layer_button_release   (GwyVectorLayer *layer,
                                                 GdkEventButton *event);
gboolean      gwy_vector_layer_motion_notify    (GwyVectorLayer *layer,
                                                 GdkEventMotion *event);
gboolean      gwy_vector_layer_key_press        (GwyVectorLayer *layer,
                                                 GdkEventKey *event);
gboolean      gwy_vector_layer_key_release      (GwyVectorLayer *layer,
                                                 GdkEventKey *event);
void          gwy_vector_layer_object_chosen    (GwyVectorLayer *layer,
                                                 gint id);

G_END_DECLS

#endif /* __GWY_VECTOR_LAYER_H__ */

/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */

