css: Add GtkCssImage class

Doesn't do anything yet, just exists.

1 files changed, 98 insertions, 0 deletions

diff --git a/gtk/gtkcssimageprivate.h b/gtk/gtkcssimageprivate.h
new file mode 100644
index 0000000000..20a09a4073
--- /dev/null
+++ b/gtk/gtkcssimageprivate.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright © 2011 Red Hat Inc.
+ *
+ * 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors: Benjamin Otte <otte@gnome.org>
+ */
+
+#ifndef __GTK_CSS_IMAGE_PRIVATE_H__
+#define __GTK_CSS_IMAGE_PRIVATE_H__
+
+#include <cairo.h>
+#include <glib-object.h>
+
+#include "gtk/gtkstylecontext.h"
+#include "gtk/gtkcssparserprivate.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_CSS_IMAGE           (_gtk_css_image_get_type ())
+#define GTK_CSS_IMAGE(obj)           (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_IMAGE, GtkCssImage))
+#define GTK_CSS_IMAGE_CLASS(cls)     (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
+#define GTK_IS_CSS_IMAGE(obj)        (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_IMAGE))
+#define GTK_IS_CSS_IMAGE_CLASS(obj)  (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_IMAGE))
+#define GTK_CSS_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
+
+typedef struct _GtkCssImage           GtkCssImage;
+typedef struct _GtkCssImageClass      GtkCssImageClass;
+
+struct _GtkCssImage
+{
+  GObject parent;
+};
+
+struct _GtkCssImageClass
+{
+  GObjectClass parent_class;
+
+  /* width of image or 0 if it has no width (optional) */
+  int          (* get_width)                       (GtkCssImage        *image);
+  /* height of image or 0 if it has no height (optional) */
+  int          (* get_height)                      (GtkCssImage        *image);
+  /* aspect ratio (width / height) of image or 0 if it has no aspect ratio (optional) */
+  double       (* get_aspect_ratio)                (GtkCssImage        *image);
+
+  /* create "computed value" in CSS terms, returns a new reference */
+  GtkCssImage *(* compute)                         (GtkCssImage        *image,
+                                                    GtkStyleContext    *context);
+
+  /* draw to 0,0 with the given width and height */
+  void         (* draw)                            (GtkCssImage        *image,
+                                                    cairo_t            *cr,
+                                                    double              width,
+                                                    double              height);
+  /* parse CSS, return TRUE on success */
+  gboolean     (* parse)                           (GtkCssImage        *image,
+                                                    GtkCssParser       *parser,
+                                                    GFile              *base);
+  /* print to CSS */
+  void         (* print)                           (GtkCssImage        *image,
+                                                    GString            *string);
+};
+
+GType          _gtk_css_image_get_type             (void) G_GNUC_CONST;
+
+GtkCssImage *  _gtk_css_image_new_parse            (GtkCssParser       *parser,
+                                                    GFile              *base);
+
+int            _gtk_css_image_get_width            (GtkCssImage        *image);
+int            _gtk_css_image_get_height           (GtkCssImage        *image);
+double         _gtk_css_image_get_aspect_ratio     (GtkCssImage        *image);
+
+GtkCssImage *  _gtk_css_image_compute              (GtkCssImage        *image,
+                                                    GtkStyleContext    *context);
+
+void           _gtk_css_image_draw                 (GtkCssImage        *image,
+                                                    cairo_t            *cr,
+                                                    double              width,
+                                                    double              height);
+void           _gtk_css_image_print                (GtkCssImage        *image,
+                                                    GString            *string);
+
+
+G_END_DECLS
+
+#endif /* __GTK_CSS_IMAGE_PRIVATE_H__ */