From f2ef38b3323489ec2435a547b39bca211f69f0d0 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Tue, 8 Sep 2020 16:01:54 +0200
Subject: Show prediction boxes at the right size

---
 src/crystfel_gui.c      |  2 ++
 src/crystfelimageview.c | 34 +++++++++++++++++++++++++++++++---
 src/crystfelimageview.h |  4 ++++
 3 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/src/crystfel_gui.c b/src/crystfel_gui.c
index 47b6c66b..2c624c5d 100644
--- a/src/crystfel_gui.c
+++ b/src/crystfel_gui.c
@@ -189,6 +189,8 @@ void update_imageview(struct crystfelproject *proj)
 
 	crystfel_image_view_set_show_reflections(CRYSTFEL_IMAGE_VIEW(proj->imageview),
 	                                         proj->show_refls);
+	crystfel_image_view_set_refl_box_size(CRYSTFEL_IMAGE_VIEW(proj->imageview),
+	                                      proj->indexing_params.ir_inn);
 	crystfel_image_view_set_show_peaks(CRYSTFEL_IMAGE_VIEW(proj->imageview),
 	                                   proj->show_peaks);
 	crystfel_image_view_set_image(CRYSTFEL_IMAGE_VIEW(proj->imageview),
diff --git a/src/crystfelimageview.c b/src/crystfelimageview.c
index 9773c4d4..e9677b8b 100644
--- a/src/crystfelimageview.c
+++ b/src/crystfelimageview.c
@@ -455,18 +455,38 @@ static void draw_refls(cairo_t *cr, CrystFELImageView *iv,
 		double fs, ss;
 		int pn;
 		double x, y;
+		float this_bs;
+		float this_lw;
+		int show_cen = 0;
 
 		get_detector_pos(refl, &fs, &ss);
 		pn = get_panel_number(refl);
-
 		p = &iv->image->detgeom->panels[pn];
+
+		this_lw = biggest(0.1*p->pixel_pitch, lw);
+		this_bs = biggest(iv->refl_box_size * p->pixel_pitch,
+		                  bs);
+
+		if ( this_bs > bs ) {
+			show_cen = 1;
+		}
+
 		x = p->pixel_pitch*(p->cnx + p->fsx*fs + p->ssx*ss);
 		y = p->pixel_pitch*(p->cny + p->fsy*fs + p->ssy*ss);
 
-		cairo_arc(cr, x, y, bs, 0, 2*M_PI);
-		cairo_set_line_width(cr, lw);
+		cairo_arc(cr, x, y, this_bs, 0, 2*M_PI);
+		cairo_set_line_width(cr, this_lw);
 		cairo_set_source_rgb(cr, 0.0, 1.0, 0.0);
 		cairo_stroke(cr);
+
+		if ( show_cen ) {
+			cairo_move_to(cr, x-this_bs, y);
+			cairo_line_to(cr, x+this_bs, y);
+			cairo_move_to(cr, x, y-this_bs);
+			cairo_line_to(cr, x, y+this_bs);
+			cairo_stroke(cr);
+		}
+
 	}
 }
 
@@ -657,6 +677,7 @@ GtkWidget *crystfel_image_view_new()
 	iv->brightness = 1.0;
 	iv->pixbufs = NULL;
 	iv->peak_box_size = 1.0;
+	iv->refl_box_size = 1.0;
 
 	g_signal_connect(G_OBJECT(iv), "destroy",
 	                 G_CALLBACK(destroy_sig), iv);
@@ -927,3 +948,10 @@ void crystfel_image_view_set_peak_box_size(CrystFELImageView *iv,
 {
 	iv->peak_box_size = box_size;
 }
+
+
+void crystfel_image_view_set_refl_box_size(CrystFELImageView *iv,
+                                           float box_size)
+{
+	iv->refl_box_size = box_size;
+}
diff --git a/src/crystfelimageview.h b/src/crystfelimageview.h
index e417dd62..a8f8df99 100644
--- a/src/crystfelimageview.h
+++ b/src/crystfelimageview.h
@@ -89,6 +89,7 @@ struct _crystfelimageview
 	int                  show_peaks;
 	int                  show_refls;
 	float                peak_box_size;
+	float                refl_box_size;
 };
 
 struct _crystfelimageviewclass
@@ -119,4 +120,7 @@ extern void crystfel_image_view_set_show_reflections(CrystFELImageView *iv,
 extern void crystfel_image_view_set_peak_box_size(CrystFELImageView *iv,
                                                   float box_size);
 
+extern void crystfel_image_view_set_refl_box_size(CrystFELImageView *iv,
+                                                  float box_size);
+
 #endif	/* CRYSTFELIMAGEVIEW_H */
-- 
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