Fix image viewer scrolling to bottom if some pages are larger than window size

1 files changed, 7 insertions, 4 deletions

diff --git a/src/ImageViewer.cpp b/src/ImageViewer.cpp
index fcc3b3b..c18ba92 100644
--- a/src/ImageViewer.cpp
+++ b/src/ImageViewer.cpp
@@ -207,10 +207,13 @@ namespace QuickMedia {
             window_size.y = window_size_i.y;
             window_size_set = true;
 
-            for(int i = 0; i < current_page; ++i) {
-                const mgl::vec2d size = get_page_size(i);
-                scroll -= size.y;
-                page_size[i].prev_size = size;
+            for(int i = 0; i < num_pages; ++i) {
+                const mgl::vec2d current_page_size = get_page_size(i);
+                const double scroll_diff = current_page_size.y - page_size[i].prev_size.y;
+                page_size[i].prev_size = current_page_size;
+
+                if(i < current_page)
+                    scroll -= scroll_diff;
             }
 
             scroll -= (get_page_size(current_page).y * 0.5 - window_size.y * 0.5);