Added new base class to handle viewBox and preserveAspectRatio.

Updated sp-root, sp-symbol, sp-image, sp-pattern, marker to use new class.
Fixed some viewport issues when % used.

(bzr r13002)

1 files changed, 66 insertions, 0 deletions

diff --git a/src/viewbox.h b/src/viewbox.h
new file mode 100644
index 000000000..24356ed17
--- /dev/null
+++ b/src/viewbox.h
@@ -0,0 +1,66 @@
+#ifndef __SP_VIEWBOX_H__
+#define __SP_VIEWBOX_H__
+
+/*
+ * viewBox helper class, common code used by root, symbol, marker, pattern, image, view
+ *
+ * Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com> (code extracted from sp-symbol.h)
+ *   Tavmjong Bah
+ *
+ * Copyright (C) 2013 Tavmjong Bah, authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#include <2geom/rect.h>
+#include <glib.h>
+
+namespace Geom {
+class Rect;
+}
+class SPItemCtx;
+
+class SPViewBox {
+
+ public:
+
+  SPViewBox();
+  ~SPViewBox();
+
+  /* viewBox; */
+  unsigned int viewBox_set : 1;
+  Geom::Rect viewBox;  // Could use optrect
+
+  /* preserveAspectRatio */
+  unsigned int aspect_set : 1;
+  unsigned int aspect_align : 4;
+  unsigned int aspect_clip : 1;
+
+  /* Child to parent additional transform */
+  Geom::Affine c2p;
+
+  void set_viewBox(const gchar* value);
+  void set_preserveAspectRatio(const gchar* value);
+
+  /* Adjusts c2p for viewbox */
+  void apply_viewbox(const Geom::Rect& in);
+
+  SPItemCtx get_rctx( const SPItemCtx* ictx);
+
+};
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-basic-offset:2
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=2:tabstop=8:softtabstop=2:fileencoding=utf-8:textwidth=99 :