From 356df44952df3a9d7ca445913e41a60739ee646b Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Mon, 22 Aug 2016 04:52:18 -0300
Subject: [PATCH] eeshow/kicad/: support text justification in page layout

---
 eeshow/kicad/pl-common.h |  3 +++
 eeshow/kicad/pl-parse.c  | 34 +++++++++++++++++++++++++++++++++-
 eeshow/kicad/pl-render.c | 19 +++++++++++++++++--
 3 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/eeshow/kicad/pl-common.h b/eeshow/kicad/pl-common.h
index 72ce0f3..4680efd 100644
--- a/eeshow/kicad/pl-common.h
+++ b/eeshow/kicad/pl-common.h
@@ -14,6 +14,7 @@
 #ifndef KICAD_PL_COMMON_H
 #define	KICAD_PL_COMMON_H
 
+#include "gfx/text.h"
 #include "kicad/sexpr.h"
 
 
@@ -39,6 +40,8 @@ struct pl_obj {
 	float incrx, incry;
 	int incrlabel;		/* tbtext */
 	int font;		/* tbtext (flags) */
+	enum text_align hor;	/* tbtext */
+	enum text_align vert;	/* tbtext */
 
 	struct pl_obj *next;
 };
diff --git a/eeshow/kicad/pl-parse.c b/eeshow/kicad/pl-parse.c
index 5b75f64..467ceca 100644
--- a/eeshow/kicad/pl-parse.c
+++ b/eeshow/kicad/pl-parse.c
@@ -17,6 +17,7 @@
 
 #include "misc/util.h"
 #include "misc/diag.h"
+#include "gfx/text.h"
 #include "file/file.h"
 #include "kicad/sexpr.h"
 #include "kicad/pl-common.h"
@@ -170,8 +171,34 @@ static bool process_font(struct pl_obj *obj, const struct expr *e)
 			if (!get_coord(next, &obj->ex, &obj->ey,
 			    &obj->edx, &obj->edy))
 				return 0;
-		} else
+		} else {
 			warning("ignoring \"%s\"\n", s);
+		}
+	}
+	return 1;
+}
+
+
+static bool process_justify(struct pl_obj *obj, const struct expr *e)
+{
+	for (; e; e = e->next) {
+		if (e->e) {
+			warning("ignoring list\n");
+			continue;
+		}
+
+		if (!strcmp(e->s, "center"))
+			obj->hor = obj->vert = text_mid;
+		else if (!strcmp(e->s, "left"))
+			obj->hor = text_min;
+		else if (!strcmp(e->s, "right"))
+			obj->hor = text_max;
+		else if (!strcmp(e->s, "top"))
+			obj->vert = text_max;
+		else if (!strcmp(e->s, "bottom"))
+			obj->vert = text_min;
+		else
+			warning("ignoring \"%s\"\n", e->s);
 	}
 	return 1;
 }
@@ -194,6 +221,8 @@ static bool process_obj(struct pl_ctx *pl, const struct expr *e,
 	obj->incry = 0;
 	obj->incrlabel = 0;
 	obj->font = 0;
+	obj->hor = text_min;
+	obj->vert = text_mid;
 
 	for (; e; e = e->next) {
 		if (e->s) {
@@ -242,6 +271,9 @@ static bool process_obj(struct pl_ctx *pl, const struct expr *e,
 		} else if (!strcmp(s, "font")) {
 			if (!process_font(obj, next))
 				return 0;
+		} else if (!strcmp(s, "justify")) {
+			if (!process_justify(obj, next))
+				return 0;
 		} else
 			warning("ignoring \"%s\"\n", s);
 	}
diff --git a/eeshow/kicad/pl-render.c b/eeshow/kicad/pl-render.c
index b682a82..6be02e4 100644
--- a/eeshow/kicad/pl-render.c
+++ b/eeshow/kicad/pl-render.c
@@ -42,6 +42,22 @@ static int coord(int v, int d, int o, int e)
 }
 
 
+static void render_text(const struct pl_obj *obj, int x, int y)
+{
+	struct text txt = {
+		.s	= obj->s,
+		.size	= mil(obj->ey),
+		.x	= x,
+		.y	= y,
+		.rot	= 0,
+		.hor	= obj->hor,
+		.vert	= obj->vert,
+	};
+
+	text_fig(&txt, COLOR_COMP_DWG, LAYER_COMP_DWG);
+}
+
+
 static void render_obj(const struct pl_ctx *pl, const struct pl_obj *obj,
     unsigned i, int w, int h)
 {
@@ -80,8 +96,7 @@ static void render_obj(const struct pl_ctx *pl, const struct pl_obj *obj,
 		}
 		break;
 	case pl_obj_text:
-		gfx_text(x, y, obj->s, mil(obj->ey), text_min, 0,
-		    COLOR_COMP_DWG, LAYER_COMP_DWG);
+		render_text(obj, x, y);
 		break;
 	default:
 		break;