smooth-view for 2d views, graph editor, sequencer, node view, works with border zoom, view selected, view all.

1 files changed, 33 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/rct.c b/source/blender/blenlib/intern/rct.c
index 68a00d81444..e22becddfd6 100644
--- a/source/blender/blenlib/intern/rct.c
+++ b/source/blender/blenlib/intern/rct.c
@@ -270,6 +270,39 @@ void BLI_rctf_resize(rctf *rect, float x, float y)
 	rect->ymax = rect->ymin + y;
 }
 
+void BLI_rctf_interp(rctf *rect, const rctf *rect_a, const rctf *rect_b, const float fac)
+{
+	const float ifac = 1.0f - fac;
+	rect->xmin = (rect_a->xmin * ifac) + (rect_b->xmin * fac);
+	rect->xmax = (rect_a->xmax * ifac) + (rect_b->xmax * fac);
+	rect->ymin = (rect_a->ymin * ifac) + (rect_b->ymin * fac);
+	rect->ymax = (rect_a->ymax * ifac) + (rect_b->ymax * fac);
+}
+
+/* BLI_rcti_interp() not needed yet */
+
+int BLI_rctf_compare(const struct rctf *rect_a, const struct rctf *rect_b, const float limit)
+{
+	if (fabsf(rect_a->xmin - rect_b->xmin) < limit)
+		if (fabsf(rect_a->xmax - rect_b->xmax) < limit)
+			if (fabsf(rect_a->ymin - rect_b->ymin) < limit)
+				if (fabsf(rect_a->ymax - rect_b->ymax) < limit)
+					return 1;
+
+	return 0;
+}
+
+int BLI_rcti_compare(const struct rcti *rect_a, const struct rcti *rect_b)
+{
+	if (rect_a->xmin == rect_b->xmin)
+		if (rect_a->xmax == rect_b->xmax)
+			if (rect_a->ymin == rect_b->ymin)
+				if (rect_a->ymax == rect_b->ymax)
+					return 1;
+
+	return 0;
+}
+
 int BLI_rctf_isect(const rctf *src1, const rctf *src2, rctf *dest)
 {
 	float xmin, xmax;