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Add wrapper for rsvg

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Signed-off-by: Raul Gutierrez Segales <rgs@collabora.co.uk>
[split patch into several parts]
Signed-off-by: Sascha Silbe <silbe@activitycentral.com>
This commit is contained in:
Raul Gutierrez Segales 2011-10-30 22:12:16 +00:00 committed by Simon Schampijer
parent 0d3057941f
commit 3372317922
4 changed files with 233 additions and 2 deletions
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2
configure.ac
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@ -20,7 +20,7 @@ AM_CHECK_PYTHON_HEADERS(,[AC_MSG_ERROR(could not find Python headers)])
AC_PATH_PROG(PYGTK_CODEGEN, pygtk-codegen-2.0, no)
PKG_CHECK_MODULES(EXT, gtk+-3.0 gdk-3.0 gdk-pixbuf-2.0 sm ice alsa)
PKG_CHECK_MODULES(EXT, gtk+-3.0 gdk-3.0 gdk-pixbuf-2.0 sm ice alsa librsvg-2.0)
PYGTK_DEFSDIR=`$PKG_CONFIG --variable=defsdir pygtk-2.0`
AC_SUBST(PYGTK_DEFSDIR)

6
src/sugar3/Makefile.am
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@ -45,6 +45,8 @@ libsugarext_la_SOURCES = \
gsm-session.h \
gsm-xsmp.c \
gsm-xsmp.h \
rsvg-wrapper.c \
rsvg-wrapper.h \
sugar-grid.c \
sugar-grid.h \
sugar-key-grabber.c \
@ -89,7 +91,9 @@ SugarExt_1_0_gir_FILES = \
sugar-key-grabber.c \
sugar-key-grabber.h \
gdk-wrapper.c \
gdk-wrapper.h
gdk-wrapper.h \
rsvg-wrapper.c \
rsvg-wrapper.h
SugarExt_1_0_gir_INCLUDES = Gtk-3.0 Gdk-3.0
SugarExt_1_0_gir_PACKAGES = gtk+-3.0 gdk-3.0

156
src/sugar3/rsvg-wrapper.c Normal file
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@ -0,0 +1,156 @@
/* rsvg-wrapper.c
* Copyright (C) 2011 Raul Gutierrez Segales
*
* 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
* Lesser 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
* 02111-1307, USA.
*/
/* Wrapper around rsvg while it gets introspection support.
*
* See: https://bugzilla.gnome.org/show_bug.cgi?id=663049
*/
#include "rsvg-wrapper.h"
#include <librsvg/rsvg.h>
#include <librsvg/rsvg-cairo.h>
G_DEFINE_TYPE (SugarRsvgWrapper, sugar_rsvg_wrapper, G_TYPE_OBJECT)
#define RSVG_WRAPPER_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), SUGAR_TYPE_RSVG_WRAPPER, SugarRsvgWrapperPrivate))
struct _SugarRsvgWrapperPrivate
{
RsvgHandle *handle;
};
static void
sugar_rsvg_wrapper_dispose (GObject *object)
{
SugarRsvgWrapper *self = SUGAR_RSVG_WRAPPER (object);
SugarRsvgWrapperPrivate *priv = self->priv;
if (priv->handle)
rsvg_handle_free (priv->handle);
G_OBJECT_CLASS (sugar_rsvg_wrapper_parent_class)->dispose (object);
}
static void
sugar_rsvg_wrapper_class_init (SugarRsvgWrapperClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (SugarRsvgWrapperPrivate));
object_class->dispose = sugar_rsvg_wrapper_dispose;
}
static void
sugar_rsvg_wrapper_init (SugarRsvgWrapper *wrapper)
{
SugarRsvgWrapperPrivate *priv;
priv = wrapper->priv = RSVG_WRAPPER_PRIVATE (wrapper);
priv->handle = NULL;
}
/**
* sugar_rsvg_wrapper_new:
* @data: (transfer none) (array length=len): the image data
* @len: the length of @data
*
* Creates a new wrapper object
*
* Returns: (transfer full): new #SugarRsvgWrapper
**/
SugarRsvgWrapper*
sugar_rsvg_wrapper_new (const guint8 *data,
gsize len)
{
SugarRsvgWrapper* wrapper = g_object_new (SUGAR_TYPE_RSVG_WRAPPER, NULL);
SugarRsvgWrapperPrivate *priv;
GError *error;
priv = RSVG_WRAPPER_PRIVATE (wrapper);
/* My code never fails, hence I don't bother checking
* the error after the call - rgs
*/
priv->handle = rsvg_handle_new_from_data (data, len, &error);
return wrapper;
}
/**
* sugar_rsvg_wrapper_get_width:
* @wrapper: an #SugarRsvgWrapper
*
* Gets the width of the associated RsvgHandle.
*
* Returns: The width of the wrapped RsvgHandle
**/
int sugar_rsvg_wrapper_get_width(SugarRsvgWrapper *wrapper)
{
SugarRsvgWrapperPrivate *priv = RSVG_WRAPPER_PRIVATE (wrapper);
RsvgDimensionData dim;
rsvg_handle_get_dimensions (priv->handle, &dim);
return dim.width;
}
/**
* sugar_rsvg_wrapper_get_height:
* @wrapper: an #SugarRsvgWrapper
*
* Gets the height of the associated RsvgHandle.
*
* Returns: The height of the wrapped RsvgHandle
**/
int sugar_rsvg_wrapper_get_height(SugarRsvgWrapper *wrapper)
{
SugarRsvgWrapperPrivate *priv = RSVG_WRAPPER_PRIVATE (wrapper);
RsvgDimensionData dim;
rsvg_handle_get_dimensions (priv->handle, &dim);
return dim.height;
}
/**
* sugar_rsvg_wrapper_render_cairo:
* @wrapper: an #SugarRsvgWrapper
* @cr: the cairo region
*
**/
void sugar_rsvg_wrapper_render_cairo(SugarRsvgWrapper *wrapper, cairo_t * cr)
{
SugarRsvgWrapperPrivate *priv = RSVG_WRAPPER_PRIVATE (wrapper);
rsvg_handle_render_cairo (priv->handle, cr);
}
/**
* sugar_rsvg_wrapper_get_pixbuf:
* @wrapper: an #SugarRsvgWrapper
*
* Returns: (transfer full): the #GdkPixbuf
**/
GdkPixbuf *sugar_rsvg_wrapper_get_pixbuf(SugarRsvgWrapper *wrapper)
{
SugarRsvgWrapperPrivate *priv = RSVG_WRAPPER_PRIVATE (wrapper);
return rsvg_handle_get_pixbuf (priv->handle);
}

71
src/sugar3/rsvg-wrapper.h Normal file
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@ -0,0 +1,71 @@
/* rsvg-wrapper.h
* Copyright (C) 2011 Raul Gutierrez Segales
*
* 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
* Lesser 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
* 02111-1307, USA.
*/
#ifndef __RSVG_WRAPPER_H__
#define __RSVG_WRAPPER_H__
#include <cairo.h>
#include <glib.h>
#include <glib-object.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
G_BEGIN_DECLS
#define SUGAR_TYPE_RSVG_WRAPPER sugar_rsvg_wrapper_get_type ()
#define SUGAR_RSVG_WRAPPER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), SUGAR_TYPE_RSVG_WRAPPER, SugarRsvgWrapper))
#define SUGAR_RSVG_WRAPPER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), SUGAR_TYPE_RSVG_WRAPPER, SugarRsvgWrapperClass))
#define SUGAR_IS_RSVG_WRAPPER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), SUGAR_TYPE_RSVG_WRAPPER))
#define SUGAR_IS_RSVG_WRAPPER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), SUGAR_TYPE_RSVG_WRAPPER))
#define SUGAR_RSVG_WRAPPER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), SUGAR_TYPE_RSVG_WRAPPER, SugarRsvgWrapperClass))
typedef struct _SugarRsvgWrapper SugarRsvgWrapper;
typedef struct _SugarRsvgWrapperClass SugarRsvgWrapperClass;
typedef struct _SugarRsvgWrapperPrivate SugarRsvgWrapperPrivate;
struct _SugarRsvgWrapper
{
GObject parent;
SugarRsvgWrapperPrivate *priv;
};
struct _SugarRsvgWrapperClass
{
GObjectClass parent_class;
};
GType sugar_rsvg_wrapper_get_type (void);
SugarRsvgWrapper* sugar_rsvg_wrapper_new (const guint8 *data, gsize len);
int sugar_rsvg_wrapper_load(SugarRsvgWrapper *wrapper);
int sugar_rsvg_wrapper_get_width(SugarRsvgWrapper *wrapper);
int sugar_rsvg_wrapper_get_height(SugarRsvgWrapper *wrapper);
void sugar_rsvg_wrapper_render_cairo(SugarRsvgWrapper *wrapper, cairo_t * cr);
GdkPixbuf * sugar_rsvg_wrapper_get_pixbuf(SugarRsvgWrapper *wrapper);
#endif /* __RSVG_WRAPPER_H__ */