X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=libview%2Fev-pixbuf-cache.c;h=ee68354575168a54437cece64cab3de726573f20;hb=92a2e145cd7856b2638698864121318a25a426b2;hp=74b8674f293685a68f006d165b6c29add76254f5;hpb=356536f6b8b44bfcf13c644a26ecdd583465bc0f;p=evince.git

diff --git a/libview/ev-pixbuf-cache.c b/libview/ev-pixbuf-cache.c
index 74b8674f..ee683545 100644
--- a/libview/ev-pixbuf-cache.c
+++ b/libview/ev-pixbuf-cache.c
@@ -777,11 +777,11 @@ ev_pixbuf_cache_set_inverted_colors (EvPixbufCache *pixbuf_cache,
 		CacheJobInfo *job_info;
 
 		job_info = pixbuf_cache->prev_job + i;
-		if (job_info->surface)
+		if (job_info && job_info->surface)
 			ev_document_misc_invert_surface (job_info->surface);
 
 		job_info = pixbuf_cache->next_job + i;
-		if (job_info->surface)
+		if (job_info && job_info->surface)
 			ev_document_misc_invert_surface (job_info->surface);
 	}
 
@@ -789,7 +789,7 @@ ev_pixbuf_cache_set_inverted_colors (EvPixbufCache *pixbuf_cache,
 		CacheJobInfo *job_info;
 
 		job_info = pixbuf_cache->job_list + i;
-		if (job_info->surface)
+		if (job_info && job_info->surface)
 			ev_document_misc_invert_surface (job_info->surface);
 	}
 }
@@ -1035,6 +1035,9 @@ ev_pixbuf_cache_set_selection_list (EvPixbufCache *pixbuf_cache,
 	if (!EV_IS_SELECTION (pixbuf_cache->document))
 		return;
 
+        if (pixbuf_cache->start_page == -1 || pixbuf_cache->end_page == -1)
+                return;
+
 	/* We check each area to see what needs updating, and what needs freeing; */
 	page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
 	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {
@@ -1114,6 +1117,9 @@ ev_pixbuf_cache_get_selection_list (EvPixbufCache *pixbuf_cache)
 
 	g_return_val_if_fail (EV_IS_PIXBUF_CACHE (pixbuf_cache), NULL);
 
+        if (pixbuf_cache->start_page == -1 || pixbuf_cache->end_page == -1)
+                return NULL;
+
 	/* We check each area to see what needs updating, and what needs freeing; */
 	page = pixbuf_cache->start_page - pixbuf_cache->preload_cache_size;
 	for (i = 0; i < pixbuf_cache->preload_cache_size; i++) {