1 files changed, 117 insertions, 0 deletions
diff --git a/app/widgets/gimpviewrendererbuffer.c b/app/widgets/gimpviewrendererbuffer.c
new file mode 100644
index 0000000..7f9d01e
--- /dev/null
+++ b/app/widgets/gimpviewrendererbuffer.c
@@ -0,0 +1,117 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpviewrendererbuffer.c
+ * Copyright (C) 2004-2006 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 3 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "core/gimptempbuf.h"
+#include "core/gimpviewable.h"
+
+#include "gimpviewrendererbuffer.h"
+
+
+static void   gimp_view_renderer_buffer_render (GimpViewRenderer *renderer,
+                                                GtkWidget        *widget);
+
+
+G_DEFINE_TYPE (GimpViewRendererBuffer, gimp_view_renderer_buffer,
+               GIMP_TYPE_VIEW_RENDERER)
+
+#define parent_class gimp_view_renderer_buffer_class_init
+
+
+static void
+gimp_view_renderer_buffer_class_init (GimpViewRendererBufferClass *klass)
+{
+  GimpViewRendererClass *renderer_class = GIMP_VIEW_RENDERER_CLASS (klass);
+
+  renderer_class->render = gimp_view_renderer_buffer_render;
+}
+
+static void
+gimp_view_renderer_buffer_init (GimpViewRendererBuffer *renderer)
+{
+}
+
+static void
+gimp_view_renderer_buffer_render (GimpViewRenderer *renderer,
+                                  GtkWidget        *widget)
+{
+  gint         buffer_width;
+  gint         buffer_height;
+  gint         view_width;
+  gint         view_height;
+  gboolean     scaling_up;
+  GimpTempBuf *render_buf = NULL;
+
+  gimp_viewable_get_size (renderer->viewable, &buffer_width, &buffer_height);
+
+  gimp_viewable_calc_preview_size (buffer_width,
+                                   buffer_height,
+                                   renderer->width,
+                                   renderer->height,
+                                   TRUE, 1.0, 1.0,
+                                   &view_width,
+                                   &view_height,
+                                   &scaling_up);
+
+  if (scaling_up)
+    {
+      GimpTempBuf *temp_buf;
+
+      temp_buf = gimp_viewable_get_new_preview (renderer->viewable,
+                                                renderer->context,
+                                                buffer_width, buffer_height);
+
+      if (temp_buf)
+        {
+          render_buf = gimp_temp_buf_scale (temp_buf, view_width, view_height);
+
+          gimp_temp_buf_unref (temp_buf);
+        }
+    }
+  else
+    {
+      render_buf = gimp_viewable_get_new_preview (renderer->viewable,
+                                                  renderer->context,
+                                                  view_width, view_height);
+    }
+
+  if (render_buf)
+    {
+      gimp_view_renderer_render_temp_buf_simple (renderer, widget, render_buf);
+
+      gimp_temp_buf_unref (render_buf);
+    }
+  else /* no preview available */
+    {
+      const gchar *icon_name;
+
+      icon_name = gimp_viewable_get_icon_name (renderer->viewable);
+
+      gimp_view_renderer_render_icon (renderer, widget, icon_name);
+    }
+}