Remove redundancy from snapping API (type of snapsource no longer has to be specified explicitly)

(bzr r9014)

1 files changed, 81 insertions, 0 deletions

diff --git a/src/snap-enums.h b/src/snap-enums.h
new file mode 100644
index 000000000..41cc65abb
--- /dev/null
+++ b/src/snap-enums.h
@@ -0,0 +1,81 @@
+#ifndef SNAPENUMS_H_
+#define SNAPENUMS_H_
+
+/**
+ * \file snap-enums.h
+ * \brief enumerations of snap source types and snap target types
+ *
+ * Authors:
+ *   Diederik van Lierop <mail@diedenrezi.nl>
+ *
+ * Copyright (C) 2010 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+namespace Inkscape {
+
+enum SnapTargetType {
+    SNAPTARGET_UNDEFINED = 0,
+    SNAPTARGET_GRID,
+    SNAPTARGET_GRID_INTERSECTION,
+    SNAPTARGET_GUIDE,
+    SNAPTARGET_GUIDE_INTERSECTION,
+    SNAPTARGET_GUIDE_ORIGIN,
+    SNAPTARGET_GRID_GUIDE_INTERSECTION,
+    SNAPTARGET_NODE_SMOOTH,
+    SNAPTARGET_NODE_CUSP,
+    SNAPTARGET_LINE_MIDPOINT,
+    SNAPTARGET_OBJECT_MIDPOINT,
+    SNAPTARGET_ROTATION_CENTER,
+    SNAPTARGET_HANDLE,
+    SNAPTARGET_PATH,
+    SNAPTARGET_PATH_INTERSECTION,
+    SNAPTARGET_BBOX_CORNER,
+    SNAPTARGET_BBOX_EDGE,
+    SNAPTARGET_BBOX_EDGE_MIDPOINT,
+    SNAPTARGET_BBOX_MIDPOINT,
+    SNAPTARGET_PAGE_BORDER,
+    SNAPTARGET_PAGE_CORNER,
+    SNAPTARGET_CONVEX_HULL_CORNER,
+    SNAPTARGET_ELLIPSE_QUADRANT_POINT,
+    SNAPTARGET_CENTER, // of ellipse
+    SNAPTARGET_CORNER, // of image or of rectangle
+    SNAPTARGET_TEXT_BASELINE,
+    SNAPTARGET_CONSTRAINED_ANGLE
+};
+
+enum SnapSourceType {
+    SNAPSOURCE_UNDEFINED = 0,
+    //-------------------------------------------------------------------
+    // Bbox points can be located at the edge of the stroke (for visual bboxes); they will therefore not snap
+    // to nodes because these are always located at the center of the stroke
+    SNAPSOURCE_BBOX_CATEGORY = 256, // will be used as a flag and must therefore be a power of two
+    SNAPSOURCE_BBOX_CORNER,
+    SNAPSOURCE_BBOX_MIDPOINT,
+    SNAPSOURCE_BBOX_EDGE_MIDPOINT,
+    //-------------------------------------------------------------------
+    // For the same reason, nodes will not snap to bbox points
+    SNAPSOURCE_NODE_CATEGORY = 512, // will be used as a flag and must therefore be a power of two
+    SNAPSOURCE_NODE_SMOOTH,
+    SNAPSOURCE_NODE_CUSP,
+    SNAPSOURCE_LINE_MIDPOINT,
+    SNAPSOURCE_PATH_INTERSECTION,
+    SNAPSOURCE_CORNER, // of image or of rectangle
+    SNAPSOURCE_CONVEX_HULL_CORNER,
+    SNAPSOURCE_ELLIPSE_QUADRANT_POINT,
+    SNAPSOURCE_NODE_HANDLE,
+    //-------------------------------------------------------------------
+    // Other points (e.g. guides, gradient knots) will snap to both bounding boxes and nodes
+    SNAPSOURCE_OTHER_CATEGORY = 1024, // will be used as a flag and must therefore be a power of two
+    SNAPSOURCE_OBJECT_MIDPOINT,
+    SNAPSOURCE_ROTATION_CENTER,
+    SNAPSOURCE_CENTER, // of ellipse
+    SNAPSOURCE_GUIDE,
+    SNAPSOURCE_GUIDE_ORIGIN,
+    SNAPSOURCE_TEXT_BASELINE,
+    SNAPSOURCE_OTHER_HANDLE
+};
+
+}
+#endif /* SNAPENUMS_H_ */