From b82f2beadfbd4deb1bd89566a8115c26e82cd0f9 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Sat, 6 Apr 2019 22:46:30 +0200
Subject: Save slides

---
 libstorycode/storycode.c  | 110 ++++++++++++++++++++++++++++++++++++++++++++++
 libstorycode/storycode.h  |   4 ++
 libstorycode/stylesheet.c |  27 +-----------
 3 files changed, 115 insertions(+), 26 deletions(-)

diff --git a/libstorycode/storycode.c b/libstorycode/storycode.c
index f9094f7..5b4901d 100644
--- a/libstorycode/storycode.c
+++ b/libstorycode/storycode.c
@@ -66,11 +66,121 @@ static int write_string(GOutputStream *fh, char *str)
 }
 
 
+char unitc(enum length_unit unit)
+{
+	if ( unit == LENGTH_FRAC ) return 'f';
+	if ( unit == LENGTH_UNIT ) return 'u';
+	return '?';
+}
+
+
+const char *bgcolc(enum gradient bggrad)
+{
+	if ( bggrad == GRAD_NONE ) return "";
+	if ( bggrad == GRAD_HORIZ ) return "HORIZONTAL ";
+	if ( bggrad == GRAD_VERT ) return "VERTICAL ";
+	return "?";
+}
+
+
+const char *alignc(enum alignment ali)
+{
+	if ( ali == ALIGN_LEFT ) return "left";
+	if ( ali == ALIGN_CENTER ) return "center";
+	if ( ali == ALIGN_RIGHT ) return "right";
+	return "?";
+}
+
+
+static const char *maybe_alignment(enum alignment ali)
+{
+	if ( ali == ALIGN_INHERIT ) return "";
+	if ( ali == ALIGN_LEFT ) return "[left]";
+	if ( ali == ALIGN_CENTER ) return "[center]";
+	if ( ali == ALIGN_RIGHT ) return "[right]";
+	return "[?]";
+}
+
+
+static void write_text(GOutputStream *fh, SlideItem *item, int geom,
+                       const char *t)
+{
+	char tmp[256];
+	size_t indent;
+	int i;
+
+	if ( geom ) {
+		snprintf(tmp, 255, "  %s[%.4g%cx%.4g%c+%.4g%c+%.4g%c]%s", t,
+		         item->geom.w.len, unitc(item->geom.w.unit),
+		         item->geom.h.len, unitc(item->geom.h.unit),
+		         item->geom.x.len, unitc(item->geom.x.unit),
+		         item->geom.y.len, unitc(item->geom.y.unit),
+		         maybe_alignment(item->align));
+	} else {
+		snprintf(tmp, 255, "  %s%s",
+		         t ,maybe_alignment(item->align));
+	}
+
+	indent = strlen(tmp);
+	write_string(fh, tmp);
+	write_string(fh, ": ");
+	write_string(fh, item->paras[0].text);
+	write_string(fh, "\n");
+	for ( i=0; i<indent; i++ ) tmp[i] = ' ';
+	for ( i=1; i<item->n_paras; i++ ) {
+		write_string(fh, tmp);
+		write_string(fh, ": ");
+		write_string(fh, item->paras[i].text);
+		write_string(fh, "\n");
+	}
+}
+
+
+static void write_image(GOutputStream *fh, SlideItem *item)
+{
+	char tmp[256];
+
+	snprintf(tmp, 255, "  IMAGE[%.4g%cx%.4g%c+%.4g%c+%.4g%c]",
+	         item->geom.w.len, unitc(item->geom.w.unit),
+	         item->geom.h.len, unitc(item->geom.h.unit),
+	         item->geom.x.len, unitc(item->geom.x.unit),
+	         item->geom.y.len, unitc(item->geom.y.unit));
+
+	write_string(fh, tmp);
+	write_string(fh, ": ");
+	write_string(fh, item->filename);
+	write_string(fh, "\n");
+}
+
+
 static int write_slide(GOutputStream *fh, Slide *s)
 {
 	int i;
 
 	for ( i=0; i<s->n_items; i++ ) {
+		switch ( s->items[i].type ) {
+
+			case SLIDE_ITEM_TEXT:
+			write_text(fh, &s->items[i], 1, "TEXT");
+			break;
+
+			case SLIDE_ITEM_PRESTITLE:
+			write_text(fh, &s->items[i], 0, "PRESTITLE");
+			break;
+
+			case SLIDE_ITEM_SLIDETITLE:
+			write_text(fh, &s->items[i], 0, "SLIDETITLE");
+			break;
+
+			case SLIDE_ITEM_FOOTER:
+			write_string(fh, "  FOOTER\n");
+			break;
+
+			case SLIDE_ITEM_IMAGE:
+			write_image(fh, &s->items[i]);
+			break;
+
+		}
 	}
 
 	return 0;
diff --git a/libstorycode/storycode.h b/libstorycode/storycode.h
index c3d5d5b..df9f79c 100644
--- a/libstorycode/storycode.h
+++ b/libstorycode/storycode.h
@@ -29,6 +29,10 @@
 
 #include "narrative.h"
 
+extern const char *alignc(enum alignment ali);
+extern const char *bgcolc(enum gradient bggrad);
+extern char unitc(enum length_unit unit);
+
 extern Narrative *storycode_parse_presentation(const char *sc);
 extern int storycode_write_presentation(Narrative *n, GOutputStream *fh);
 
diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index 3fdb7af..e3aecee 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -31,6 +31,7 @@
 #include <stdio.h>
 
 #include "stylesheet.h"
+#include "storycode.h"
 
 enum style_mask
 {
@@ -423,32 +424,6 @@ static void add_text(char **text, size_t *len, size_t *lenmax, const char *prefi
 }
 
 
-static char unitc(enum length_unit unit)
-{
-	if ( unit == LENGTH_FRAC ) return 'f';
-	if ( unit == LENGTH_UNIT ) return 'u';
-	return '?';
-}
-
-
-static const char *bgcolc(enum gradient bggrad)
-{
-	if ( bggrad == GRAD_NONE ) return "";
-	if ( bggrad == GRAD_HORIZ ) return "HORIZONTAL ";
-	if ( bggrad == GRAD_VERT ) return "VERTICAL ";
-	return "?";
-}
-
-
-static const char *alignc(enum alignment ali)
-{
-	if ( ali == ALIGN_LEFT ) return "left";
-	if ( ali == ALIGN_CENTER ) return "center";
-	if ( ali == ALIGN_RIGHT ) return "right";
-	return "?";
-}
-
-
 static void add_style(char **text, size_t *len, size_t *lenmax, const char *prefix,
                       struct style *sty)
 {
-- 
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