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#include "svgpaintable.h"
#include <gtk/gtk.h>
#include <librsvg/rsvg.h>
struct _SvgPaintable
{
GObject parent_instance;
GFile *file;
RsvgHandle *handle;
};
struct _SvgPaintableClass
{
GObjectClass parent_class;
};
enum {
PROP_FILE = 1,
NUM_PROPERTIES
};
static void
svg_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
SvgPaintable *self = SVG_PAINTABLE (paintable);
cairo_t *cr;
GError *error = NULL;
cr = gtk_snapshot_append_cairo (GTK_SNAPSHOT (snapshot),
&GRAPHENE_RECT_INIT (0, 0, width, height));
if (!rsvg_handle_render_document (self->handle, cr,
&(RsvgRectangle) {0, 0, width, height},
&error))
{
g_error ("%s", error->message);
}
cairo_destroy (cr);
}
static int
svg_paintable_get_intrinsic_width (GdkPaintable *paintable)
{
SvgPaintable *self = SVG_PAINTABLE (paintable);
RsvgDimensionData data;
rsvg_handle_get_dimensions (self->handle, &data);
return data.width;
}
static int
svg_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
SvgPaintable *self = SVG_PAINTABLE (paintable);
RsvgDimensionData data;
rsvg_handle_get_dimensions (self->handle, &data);
return data.height;
}
static void
svg_paintable_init_interface (GdkPaintableInterface *iface)
{
iface->snapshot = svg_paintable_snapshot;
iface->get_intrinsic_width = svg_paintable_get_intrinsic_width;
iface->get_intrinsic_height = svg_paintable_get_intrinsic_height;
}
G_DEFINE_TYPE_WITH_CODE (SvgPaintable, svg_paintable, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
svg_paintable_init_interface))
static void
svg_paintable_init (SvgPaintable *self)
{
}
static void
svg_paintable_dispose (GObject *object)
{
SvgPaintable *self = SVG_PAINTABLE (object);
g_clear_object (&self->file);
g_clear_object (&self->handle);
G_OBJECT_CLASS (svg_paintable_parent_class)->dispose (object);
}
static void
svg_paintable_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
SvgPaintable *self = SVG_PAINTABLE (object);
switch (prop_id)
{
case PROP_FILE:
{
GFile *file = g_value_get_object (value);
RsvgHandle *handle = rsvg_handle_new_from_gfile_sync (file,
RSVG_HANDLE_FLAGS_NONE,
NULL,
NULL);
rsvg_handle_set_dpi (handle, 90);
g_set_object (&self->file, file);
g_set_object (&self->handle, handle);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
svg_paintable_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
SvgPaintable *self = SVG_PAINTABLE (object);
switch (prop_id)
{
case PROP_FILE:
g_value_set_object (value, self->file);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
svg_paintable_class_init (SvgPaintableClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->dispose = svg_paintable_dispose;
object_class->set_property = svg_paintable_set_property;
object_class->get_property = svg_paintable_get_property;
g_object_class_install_property (object_class, PROP_FILE,
g_param_spec_object ("file", "File", "File",
G_TYPE_FILE,
G_PARAM_READWRITE));
}
GdkPaintable *
svg_paintable_new (GFile *file)
{
return g_object_new (SVG_TYPE_PAINTABLE,
"file", file,
NULL);
}
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