From fd60b77df51cb24c33440ab7d9afe8043f9e43db Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Mon, 25 Feb 2019 23:10:10 +0100
Subject: Use padding

---
 libstorycode/slide_render_cairo.c | 23 ++++++++++++++++++-----
 libstorycode/stylesheet.c         | 11 +++++++++++
 libstorycode/stylesheet.h         |  2 ++
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/libstorycode/slide_render_cairo.c b/libstorycode/slide_render_cairo.c
index 81b78ef..307b4d4 100644
--- a/libstorycode/slide_render_cairo.c
+++ b/libstorycode/slide_render_cairo.c
@@ -69,6 +69,8 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
 {
 	int i;
 	double x, y, w, h;
+	double pad_l, pad_r, pad_t, pad_b;
+	struct length pad[4];
 	const char *font;
 	enum alignment align;
 	double fgcol[4];
@@ -81,6 +83,12 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
 	w = lcalc(item->geom.w, parent_w);
 	h = lcalc(item->geom.h, parent_h);
 
+	if ( stylesheet_get_padding(ss, el, pad) ) return;
+	pad_l = lcalc(pad[0], parent_w);
+	pad_r = lcalc(pad[1], parent_w);
+	pad_t = lcalc(pad[2], parent_h);
+	pad_b = lcalc(pad[3], parent_h);
+
 	font = stylesheet_get_font(ss, el, fgcol, &align);
 	if ( font == NULL ) return;
 
@@ -102,13 +110,19 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
 		palignment = to_pangoalignment(item->align);
 	}
 
+	/* FIXME: Apply background */
+
+	cairo_save(cr);
+	cairo_translate(cr, x, y);
+	cairo_translate(cr, pad_l, pad_t);
+
 	for ( i=0; i<item->n_paras; i++ ) {
 
 		if ( item->layouts[i] == NULL ) {
 			item->layouts[i] = pango_layout_new(pc);
 		}
 		pango_layout_set_width(item->layouts[i],
-		                       pango_units_from_double(w));
+		                       pango_units_from_double(w-pad_l-pad_r));
 		pango_layout_set_text(item->layouts[i], item->paragraphs[i], -1);
 
 		pango_layout_set_alignment(item->layouts[i], palignment);
@@ -121,17 +135,16 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
 
 		/* FIXME: Clip to w,h */
 
-		cairo_save(cr);
 		cairo_set_source_rgba(cr, fgcol[0], fgcol[1], fgcol[2], fgcol[3]);
-		cairo_translate(cr, x, y);
+		cairo_move_to(cr, 0.0, 0.0);
 		pango_cairo_update_layout(cr, item->layouts[i]);
 		pango_cairo_show_layout(cr, item->layouts[i]);
 		pango_layout_get_extents(item->layouts[i], NULL, &rect);
-		y += pango_units_to_double(rect.height);
+		cairo_translate(cr, 0.0, pango_units_to_double(rect.height));
 		cairo_fill(cr);
-		cairo_restore(cr);
 
 	}
+	cairo_restore(cr);
 }
 
 
diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index 7054a09..5d40f4b 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -262,3 +262,14 @@ int stylesheet_get_background(Stylesheet *s, enum style_element el,
 	*grad = sty->bggrad;
 	return 0;
 }
+
+
+int stylesheet_get_padding(Stylesheet *s, enum style_element el,
+                           struct length padding[4])
+{
+	int i;
+	struct style *sty = get_style(s, el);
+	if ( sty == NULL ) return 1;
+	for ( i=0; i<4; i++ ) padding[i] = sty->padding[i];
+	return 0;
+}
diff --git a/libstorycode/stylesheet.h b/libstorycode/stylesheet.h
index c5e385e..f050303 100644
--- a/libstorycode/stylesheet.h
+++ b/libstorycode/stylesheet.h
@@ -97,6 +97,8 @@ extern const char *stylesheet_get_font(Stylesheet *s, enum style_element el,
                                        double fgcol[4], enum alignment *alignment);
 extern int stylesheet_get_background(Stylesheet *s, enum style_element el,
                                      enum gradient *grad, double *bgcol, double *bgcol2);
+extern int stylesheet_get_padding(Stylesheet *s, enum style_element el,
+                                  struct length padding[4]);
 
 
 #endif /* STYLESHEET_H */
-- 
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