1 files changed, 131 insertions, 0 deletions
diff --git a/src/display/nr-arena.cpp b/src/display/nr-arena.cpp
new file mode 100644
index 000000000..f54bfbb90
--- /dev/null
+++ b/src/display/nr-arena.cpp
@@ -0,0 +1,131 @@
+#define __NR_ARENA_C__
+
+/*
+ * RGBA display list system for inkscape
+ *
+ * Author:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *
+ * Copyright (C) 2001-2002 Lauris Kaplinski
+ * Copyright (C) 2001 Ximian, Inc.
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "nr-arena-item.h"
+#include "nr-arena.h"
+#include <libnr/nr-blit.h>
+
+static void nr_arena_class_init (NRArenaClass *klass);
+static void nr_arena_init (NRArena *arena);
+static void nr_arena_finalize (NRObject *object);
+
+static NRActiveObjectClass *parent_class;
+
+NRType
+nr_arena_get_type (void)
+{
+	static NRType type = 0;
+	if (!type) {
+		type = nr_object_register_type (NR_TYPE_ACTIVE_OBJECT,
+						"NRArena",
+						sizeof (NRArenaClass),
+						sizeof (NRArena),
+						(void (*) (NRObjectClass *)) nr_arena_class_init,
+						(void (*) (NRObject *)) nr_arena_init);
+	}
+	return type;
+}
+
+static void
+nr_arena_class_init (NRArenaClass *klass)
+{
+	NRObjectClass *object_class = (NRObjectClass *) klass;
+
+	parent_class = (NRActiveObjectClass *) (((NRObjectClass *) klass)->parent);
+
+	object_class->finalize = nr_arena_finalize;
+	object_class->cpp_ctor = NRObject::invoke_ctor<NRArena>;
+}
+
+static void
+nr_arena_init (NRArena *arena)
+{
+	arena->delta = 0; // to be set by desktop from prefs
+	arena->rendermode = RENDERMODE_NORMAL; // default is normal render
+	arena->outlinecolor = 0xff; // black; to be set by desktop from bg color
+}
+
+static void
+nr_arena_finalize (NRObject *object)
+{
+	((NRObjectClass *) (parent_class))->finalize (object);
+}
+
+void
+nr_arena_request_update (NRArena *arena, NRArenaItem *item)
+{
+	NRActiveObject *aobject = (NRActiveObject *) arena;
+
+	nr_return_if_fail (arena != NULL);
+	nr_return_if_fail (NR_IS_ARENA (arena));
+	nr_return_if_fail (item != NULL);
+	nr_return_if_fail (NR_IS_ARENA_ITEM (item));
+
+	if (aobject->callbacks) {
+		for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
+			NRObjectListener *listener = aobject->callbacks->listeners + i;
+			NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
+			if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_update) {
+				avector->request_update (arena, item, listener->data);
+			}
+		}
+	}
+}
+
+void
+nr_arena_request_render_rect (NRArena *arena, NRRectL *area)
+{
+	NRActiveObject *aobject = (NRActiveObject *) arena;
+
+	nr_return_if_fail (arena != NULL);
+	nr_return_if_fail (NR_IS_ARENA (arena));
+	nr_return_if_fail (area != NULL);
+
+	if (aobject->callbacks && area && !nr_rect_l_test_empty (area)) {
+		for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
+			NRObjectListener *listener = aobject->callbacks->listeners + i;
+			NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
+			if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_render) {
+				avector->request_render (arena, area, listener->data);
+			}
+		}
+	}
+}
+
+void 
+nr_arena_render_paintserver_fill (NRPixBlock *pb, NRRectL *area, SPPainter *painter, float opacity, NRPixBlock *mask)
+{
+	NRPixBlock cb, cb_opa;
+	nr_pixblock_setup_fast (&cb, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
+	nr_pixblock_setup_fast (&cb_opa, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
+
+	/* Need separate gradient buffer (lauris)*/
+	// do the filling
+	painter->fill (painter, &cb);
+	cb.empty = FALSE;
+
+	// do the fill-opacity and mask composite 
+	if (opacity < 1.0) {
+		nr_blit_pixblock_pixblock_alpha (&cb_opa, &cb, (int) floor (255 * opacity));
+		cb_opa.empty = FALSE;
+		nr_blit_pixblock_pixblock_mask (pb, &cb_opa, mask);
+	} else {
+		nr_blit_pixblock_pixblock_mask (pb, &cb, mask);
+	}
+
+	pb->empty = FALSE;
+
+	nr_pixblock_release (&cb);
+	nr_pixblock_release (&cb_opa);
+}