From: Ethan Herbertson <ejherbertson@msts.com>
Date: Wed, 22 Aug 2018 02:05:03 +0000 (-0500)
Subject: Add vertical-centering of slide content
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=75c55236b8382936bb41b4d1b11376b0e4a39c3d;p=smdp.git

Add vertical-centering of slide content
---

diff --git a/include/markdown.h b/include/markdown.h
index 7a435a8..8e33c8e 100644
--- a/include/markdown.h
+++ b/include/markdown.h
@@ -74,6 +74,7 @@ typedef struct _slide_t {
     struct _slide_t *next;
     int lines;
     int stop;
+    int lines_consumed;
 } slide_t;
 
 typedef struct _deck_t {
diff --git a/src/viewer.c b/src/viewer.c
index d23ed73..2cf5911 100644
--- a/src/viewer.c
+++ b/src/viewer.c
@@ -158,6 +158,7 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa
             max_lines_slide = sc;
         }
 
+        slide->lines_consumed = lc;
         slide = slide->next;
         ++sc;
     }
@@ -337,7 +338,8 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa
 
         // print lines
         while(line) {
-            add_line(content, l, (COLS - max_cols) / 2, line, max_cols, colors);
+            add_line(content, l + ((LINES - slide->lines_consumed - bar_top - bar_bottom) / 2),
+                     (COLS - max_cols) / 2, line, max_cols, colors);
 
             // raise stop counter if we pass a line having a stop bit
             if(CHECK_BIT(line->bits, IS_STOP))