fix buffer size when returning from alternate screen

if the window was resized while we were in the alternate screen, it
would have resized the alternate screen buffer, but not the normal
buffer, which breaks things when we swap the normal buffer back in.

1 files changed, 6 insertions, 0 deletions

diff --git a/display.c b/display.c
index 747a825..63b7242 100644
--- a/display.c
+++ b/display.c
@@ -385,6 +385,8 @@ void runes_display_use_alternate_buffer(RunesTerm *t)
 
 void runes_display_use_normal_buffer(RunesTerm *t)
 {
+    int x, y;
+
     if (!t->alternate) {
         return;
     }
@@ -394,6 +396,10 @@ void runes_display_use_normal_buffer(RunesTerm *t)
     cairo_destroy(t->cr);
     t->cr = t->alternate_cr;
     t->alternate_cr = NULL;
+    t->xpixel = -1;
+    t->ypixel = -1;
+    runes_window_backend_get_size(t, &x, &y);
+    runes_display_set_window_size(t, x, y);
 }
 
 void runes_display_set_scroll_region(