From 36a4bd7229a562d414513073d1123080b9615cd9 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Tue, 26 Feb 2019 19:57:41 +0100
Subject: Use slide size from stylesheet when appropriate

---
 libstorycode/slide.c              | 13 ++++++++++---
 libstorycode/slide.h              |  2 +-
 libstorycode/slide_render_cairo.c |  3 +++
 libstorycode/stylesheet.c         |  9 +++++++++
 libstorycode/stylesheet.h         |  1 +
 src/pdfstorycode.c                |  3 ++-
 6 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/libstorycode/slide.c b/libstorycode/slide.c
index 809f2cb..9db5995 100644
--- a/libstorycode/slide.c
+++ b/libstorycode/slide.c
@@ -40,8 +40,8 @@ Slide *slide_new()
 	if ( s == NULL ) return NULL;
 	s->n_items = 0;
 	s->items = NULL;
-	s->logical_w = 1024.0;
-	s->logical_h = 768.0;
+	s->logical_w = -1.0;
+	s->logical_h = -1.0;
 	return s;
 }
 
@@ -198,9 +198,16 @@ int slide_set_logical_size(Slide *s, double w, double h)
 }
 
 
-int slide_get_logical_size(Slide *s, double *w, double *h)
+int slide_get_logical_size(Slide *s, Stylesheet *ss, double *w, double *h)
 {
 	if ( s == NULL ) return 1;
+
+	if ( s->logical_w < 0.0 ) {
+		/* Slide-specific value not set, use stylesheet */
+		stylesheet_get_slide_default_size(ss, w, h);
+		return 0;
+	}
+
 	*w = s->logical_w;
 	*h = s->logical_h;
 	return 0;
diff --git a/libstorycode/slide.h b/libstorycode/slide.h
index a91e578..e9e5875 100644
--- a/libstorycode/slide.h
+++ b/libstorycode/slide.h
@@ -43,7 +43,7 @@ extern int slide_add_slidetitle(Slide *s, char **text, int n_text);
 extern int slide_add_prestitle(Slide *s, char **text, int n_text);
 extern int slide_set_logical_size(Slide *s, double w, double h);
 
-extern int slide_get_logical_size(Slide *s, double *w, double *h);
+extern int slide_get_logical_size(Slide *s, Stylesheet *ss, double *w, double *h);
 
 /* For debugging, not really part of API */
 extern void describe_slide(Slide *s);
diff --git a/libstorycode/slide_render_cairo.c b/libstorycode/slide_render_cairo.c
index 307b4d4..ed9b948 100644
--- a/libstorycode/slide_render_cairo.c
+++ b/libstorycode/slide_render_cairo.c
@@ -192,10 +192,13 @@ int slide_render_cairo(Slide *s, cairo_t *cr, ImageStore *is, Stylesheet *styles
 	double bgcol[4];
 	double bgcol2[4];
 	cairo_pattern_t *patt = NULL;
+	double w, h;
 
 	r = stylesheet_get_background(stylesheet, STYEL_SLIDE, &bg, bgcol, bgcol2);
 	if ( r ) return 1;
 
+	slide_get_logical_size(s, stylesheet, &w, &h);
+
 	/* Overall background */
 	cairo_rectangle(cr, 0.0, 0.0, s->logical_w, s->logical_h);
 	switch ( bg ) {
diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index 5d40f4b..0002859 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -144,6 +144,15 @@ static struct style *get_style(Stylesheet *s, enum style_element el)
 }
 
 
+int stylesheet_get_slide_default_size(Stylesheet *s, double *w, double *h)
+{
+	if ( s == NULL ) return 1;
+	*w = s->default_slide_w;
+	*h = s->default_slide_h;
+	return 0;
+}
+
+
 int stylesheet_set_slide_default_size(Stylesheet *s, double w, double h)
 {
 	if ( s == NULL ) return 1;
diff --git a/libstorycode/stylesheet.h b/libstorycode/stylesheet.h
index f050303..5bd1695 100644
--- a/libstorycode/stylesheet.h
+++ b/libstorycode/stylesheet.h
@@ -83,6 +83,7 @@ extern Stylesheet *stylesheet_new(void);
 extern void stylesheet_free(Stylesheet *s);
 
 extern int stylesheet_set_slide_default_size(Stylesheet *s, double w, double h);
+extern int stylesheet_get_slide_default_size(Stylesheet *s, double *w, double *h);
 
 extern int stylesheet_set_geometry(Stylesheet *s, enum style_element el, struct frame_geom geom);
 extern int stylesheet_set_font(Stylesheet *s, enum style_element el, char *font);
diff --git a/src/pdfstorycode.c b/src/pdfstorycode.c
index ad1d706..92e2809 100644
--- a/src/pdfstorycode.c
+++ b/src/pdfstorycode.c
@@ -67,7 +67,8 @@ static int render_slides_to_pdf(Presentation *p, ImageStore *is, const char *fil
 		double log_w, log_h;
 
 		s = presentation_slide(p, i);
-		slide_get_logical_size(s, &log_w, &log_h);
+		slide_get_logical_size(s, presentation_get_stylesheet(p),
+		                       &log_w, &log_h);
 
 		cairo_pdf_surface_set_size(surf, w, w*(log_h/log_w));
 
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