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atril/libdocument/ev-link-dest.c

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/* this file is part of atril, a mate document viewer
*
* Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
* Copyright (C) 2005 Red Hat, Inc.
*
* Atril 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.
*
* Atril 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include "ev-link-dest.h"
#include "ev-document-type-builtins.h"
enum {
PROP_0,
PROP_TYPE,
PROP_PAGE,
PROP_LEFT,
PROP_TOP,
PROP_BOTTOM,
PROP_RIGHT,
PROP_ZOOM,
PROP_CHANGE,
PROP_NAMED,
PROP_PAGE_LABEL
};
typedef enum {
EV_DEST_CHANGE_TOP = 1 << 0,
EV_DEST_CHANGE_LEFT = 1 << 1,
EV_DEST_CHANGE_ZOOM = 1 << 2
} EvDestChange;
struct _EvLinkDest {
GObject base_instance;
EvLinkDestPrivate *priv;
};
struct _EvLinkDestClass {
GObjectClass base_class;
};
struct _EvLinkDestPrivate {
EvLinkDestType type;
int page;
double top;
double left;
double bottom;
double right;
double zoom;
EvDestChange change;
gchar *named;
gchar *page_label;
};
G_DEFINE_TYPE_WITH_PRIVATE (EvLinkDest, ev_link_dest, G_TYPE_OBJECT)
EvLinkDestType
ev_link_dest_get_dest_type (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
return self->priv->type;
}
gint
ev_link_dest_get_page (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), -1);
return self->priv->page;
}
gdouble
ev_link_dest_get_top (EvLinkDest *self,
gboolean *change_top)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
if (change_top)
*change_top = (self->priv->change & EV_DEST_CHANGE_TOP);
return self->priv->top;
}
gdouble
ev_link_dest_get_left (EvLinkDest *self,
gboolean *change_left)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
if (change_left)
*change_left = (self->priv->change & EV_DEST_CHANGE_LEFT);
return self->priv->left;
}
gdouble
ev_link_dest_get_bottom (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
return self->priv->bottom;
}
gdouble
ev_link_dest_get_right (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
return self->priv->right;
}
gdouble
ev_link_dest_get_zoom (EvLinkDest *self,
gboolean *change_zoom)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), 0);
if (change_zoom)
*change_zoom = (self->priv->change & EV_DEST_CHANGE_ZOOM);
return self->priv->zoom;
}
const gchar *
ev_link_dest_get_named_dest (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), NULL);
return self->priv->named;
}
const gchar *
ev_link_dest_get_page_label (EvLinkDest *self)
{
g_return_val_if_fail (EV_IS_LINK_DEST (self), NULL);
return self->priv->page_label;
}
static void
ev_link_dest_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *param_spec)
{
EvLinkDest *self;
self = EV_LINK_DEST (object);
switch (prop_id) {
case PROP_TYPE:
g_value_set_enum (value, self->priv->type);
break;
case PROP_PAGE:
g_value_set_int (value, self->priv->page);
break;
case PROP_TOP:
g_value_set_double (value, self->priv->top);
break;
case PROP_LEFT:
g_value_set_double (value, self->priv->left);
break;
case PROP_BOTTOM:
g_value_set_double (value, self->priv->bottom);
break;
case PROP_RIGHT:
g_value_set_double (value, self->priv->left);
break;
case PROP_ZOOM:
g_value_set_double (value, self->priv->zoom);
break;
case PROP_CHANGE:
g_value_set_uint (value, self->priv->change);
break;
case PROP_NAMED:
g_value_set_string (value, self->priv->named);
break;
case PROP_PAGE_LABEL:
g_value_set_string (value, self->priv->page_label);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
prop_id,
param_spec);
break;
}
}
static void
ev_link_dest_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *param_spec)
{
EvLinkDest *self = EV_LINK_DEST (object);
switch (prop_id) {
case PROP_TYPE:
self->priv->type = g_value_get_enum (value);
break;
case PROP_PAGE:
self->priv->page = g_value_get_int (value);
break;
case PROP_TOP:
self->priv->top = g_value_get_double (value);
break;
case PROP_LEFT:
self->priv->left = g_value_get_double (value);
break;
case PROP_BOTTOM:
self->priv->bottom = g_value_get_double (value);
break;
case PROP_RIGHT:
self->priv->right = g_value_get_double (value);
break;
case PROP_ZOOM:
self->priv->zoom = g_value_get_double (value);
break;
case PROP_CHANGE:
self->priv->change = g_value_get_uint (value);
break;
case PROP_NAMED:
self->priv->named = g_value_dup_string (value);
break;
case PROP_PAGE_LABEL:
self->priv->page_label = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object,
prop_id,
param_spec);
break;
}
}
static void
ev_link_dest_finalize (GObject *object)
{
EvLinkDestPrivate *priv;
priv = EV_LINK_DEST (object)->priv;
if (priv->named) {
g_free (priv->named);
priv->named = NULL;
}
if (priv->page_label) {
g_free (priv->page_label);
priv->page_label = NULL;
}
G_OBJECT_CLASS (ev_link_dest_parent_class)->finalize (object);
}
static void
ev_link_dest_init (EvLinkDest *ev_link_dest)
{
ev_link_dest->priv = ev_link_dest_get_instance_private (ev_link_dest);
ev_link_dest->priv->named = NULL;
}
static void
ev_link_dest_class_init (EvLinkDestClass *ev_link_dest_class)
{
GObjectClass *g_object_class;
g_object_class = G_OBJECT_CLASS (ev_link_dest_class);
g_object_class->set_property = ev_link_dest_set_property;
g_object_class->get_property = ev_link_dest_get_property;
g_object_class->finalize = ev_link_dest_finalize;
g_object_class_install_property (g_object_class,
PROP_TYPE,
g_param_spec_enum ("type",
"Dest Type",
"The destination type",
EV_TYPE_LINK_DEST_TYPE,
EV_LINK_DEST_TYPE_UNKNOWN,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_PAGE,
g_param_spec_int ("page",
"Dest Page",
"The destination page",
-1,
G_MAXINT,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_LEFT,
g_param_spec_double ("left",
"Left coordinate",
"The left coordinate",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_TOP,
g_param_spec_double ("top",
"Top coordinate",
"The top coordinate",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_BOTTOM,
g_param_spec_double ("bottom",
"Bottom coordinate",
"The bottom coordinate",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_RIGHT,
g_param_spec_double ("right",
"Right coordinate",
"The right coordinate",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_ZOOM,
g_param_spec_double ("zoom",
"Zoom",
"Zoom",
0,
G_MAXDOUBLE,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_CHANGE,
g_param_spec_uint ("change",
"Change",
"Whether top, left, and zoom should be changed",
0,
G_MAXUINT,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_NAMED,
g_param_spec_string ("named",
"Named destination",
"The named destination",
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (g_object_class,
PROP_PAGE_LABEL,
g_param_spec_string ("page_label",
"Label of the page",
"The label of the destination page",
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
EvLinkDest *
ev_link_dest_new_page (gint page)
{
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_PAGE,
NULL));
}
EvLinkDest *
ev_link_dest_new_xyz (gint page,
gdouble left,
gdouble top,
gdouble zoom,
gboolean change_left,
gboolean change_top,
gboolean change_zoom)
{
EvDestChange change = 0;
if (change_left)
change |= EV_DEST_CHANGE_LEFT;
if (change_top)
change |= EV_DEST_CHANGE_TOP;
if (change_zoom)
change |= EV_DEST_CHANGE_ZOOM;
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_XYZ,
"left", left,
"top", top,
"zoom", zoom,
"change", change,
NULL));
}
EvLinkDest *
ev_link_dest_new_fit (gint page)
{
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_FIT,
NULL));
}
EvLinkDest *
ev_link_dest_new_fith (gint page,
gdouble top,
gboolean change_top)
{
EvDestChange change = 0;
if (change_top)
change |= EV_DEST_CHANGE_TOP;
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_FITH,
"top", top,
"change", change,
NULL));
}
EvLinkDest *
ev_link_dest_new_fitv (gint page,
gdouble left,
gboolean change_left)
{
EvDestChange change = 0;
if (change_left)
change |= EV_DEST_CHANGE_LEFT;
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_FITV,
"left", left,
"change", change,
NULL));
}
EvLinkDest *
ev_link_dest_new_fitr (gint page,
gdouble left,
gdouble bottom,
gdouble right,
gdouble top)
{
EvDestChange change = EV_DEST_CHANGE_TOP | EV_DEST_CHANGE_LEFT;
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page", page,
"type", EV_LINK_DEST_TYPE_FITR,
"left", left,
"bottom", bottom,
"right", right,
"top", top,
"change", change,
NULL));
}
EvLinkDest *
ev_link_dest_new_named (const gchar *named_dest)
{
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"named", named_dest,
"type", EV_LINK_DEST_TYPE_NAMED,
NULL));
}
EvLinkDest *
ev_link_dest_new_page_label (const gchar *page_label)
{
return EV_LINK_DEST (g_object_new (EV_TYPE_LINK_DEST,
"page_label", page_label,
"type", EV_LINK_DEST_TYPE_PAGE_LABEL,
NULL));
}
EvLinkDest *
ev_link_dest_new_hlink(const gchar* hlink,gint page)
{
return EV_LINK_DEST(g_object_new(EV_TYPE_LINK_DEST,
"named",hlink,
"page",page,
"type", EV_LINK_DEST_TYPE_HLINK,
NULL));
}
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