[libview] Use ev_document_get_page_size to get document width/height

[evince.git] / shell / ev-sidebar-thumbnails.c

diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c
index e43b008fccbc0aeeb5af9be739e8db1f45180621..4e8c5b2fb9e6a8a5771dbd1f6ca2cdcd132d5316 100644 (file)
--- a/shell/ev-sidebar-thumbnails.c
+++ b/shell/ev-sidebar-thumbnails.c
@@ -45,6 +45,18 @@
  * limit its use */
 #define MAX_ICON_VIEW_PAGE_COUNT 1500
 
+typedef struct _EvThumbsSize
+{
+       gint width;
+       gint height;
+} EvThumbsSize;
+
+typedef struct _EvThumbsSizeCache {
+       gboolean uniform;
+       gint uniform_width;
+       gint uniform_height;
+       EvThumbsSize *sizes;
+} EvThumbsSizeCache;
 
 struct _EvSidebarThumbnailsPrivate {
        GtkWidget *swindow;
@@ -55,6 +67,7 @@ struct _EvSidebarThumbnailsPrivate {
        GHashTable *loading_icons;
        EvDocument *document;
        EvPageCache *page_cache;
+       EvThumbsSizeCache *size_cache;
 
        gint n_pages, pages_done;
 
@@ -98,6 +111,138 @@ G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
 #define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \
        (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate));
 
+/* Thumbnails dimensions cache */
+#define EV_THUMBNAILS_SIZE_CACHE_KEY "ev-thumbnails-size-cache"
+
+static EvThumbsSizeCache *
+ev_thumbnails_size_cache_new (EvDocument *document)
+{
+       EvThumbsSizeCache *cache;
+       EvRenderContext *rc;
+       gint i, n_pages;
+       EvThumbsSize *thumb_size;
+
+       cache = g_new0 (EvThumbsSizeCache, 1);
+
+       n_pages = ev_document_get_n_pages (document);
+
+       /* Assume all pages are the same size until proven otherwise */
+       cache->uniform = TRUE;
+
+       for (i = 0; i < n_pages; i++) {
+               EvPage *page;
+               gdouble page_width, page_height;
+               gint    thumb_width = 0;
+               gint    thumb_height = 0;
+
+               page = ev_document_get_page (document, i);
+
+               ev_document_get_page_size (document, i, &page_width, &page_height);
+
+               if (!rc) {
+                       rc = ev_render_context_new (page, 0, (gdouble)THUMBNAIL_WIDTH / page_width);
+               } else {
+                       ev_render_context_set_page (rc, page);
+                       ev_render_context_set_scale (rc, (gdouble)THUMBNAIL_WIDTH / page_width);
+               }
+
+               ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (document),
+                                                      rc, &thumb_width, &thumb_height);
+
+               if (i == 0) {
+                       cache->uniform_width = thumb_width;
+                       cache->uniform_height = thumb_height;
+               } else if (cache->uniform &&
+                          (cache->uniform_width != thumb_width ||
+                           cache->uniform_height != thumb_height)) {
+                       /* It's a different thumbnail size.  Backfill the array. */
+                       int j;
+
+                       cache->sizes = g_new0 (EvThumbsSize, n_pages);
+
+                       for (j = 0; j < i; j++) {
+                               thumb_size = &(cache->sizes[j]);
+                               thumb_size->width = cache->uniform_width;
+                               thumb_size->height = cache->uniform_height;
+                       }
+                       cache->uniform = FALSE;
+               }
+
+               if (! cache->uniform) {
+                       thumb_size = &(cache->sizes[i]);
+
+                       thumb_size->width = thumb_width;
+                       thumb_size->height = thumb_height;
+               }
+
+               g_object_unref (page);
+       }
+
+       if (rc) {
+               g_object_unref (rc);
+       }
+
+       return cache;
+}
+
+static void
+ev_thumbnails_size_cache_get_size (EvThumbsSizeCache *cache,
+                                  gint               page,
+                                  gint               rotation,
+                                  gint              *width,
+                                  gint              *height)
+{
+       gint w, h;
+
+       if (cache->uniform) {
+               w = cache->uniform_width;
+               h = cache->uniform_height;
+       } else {
+               EvThumbsSize *thumb_size;
+
+               thumb_size = &(cache->sizes[page]);
+
+               w = thumb_size->width;
+               h = thumb_size->height;
+       }
+
+       if (rotation == 0 || rotation == 180) {
+               if (width) *width = w;
+               if (height) *height = h;
+       } else {
+               if (width) *width = h;
+               if (height) *height = w;
+       }
+}
+
+static void
+ev_thumbnails_size_cache_free (EvThumbsSizeCache *cache)
+{
+       if (cache->sizes) {
+               g_free (cache->sizes);
+               cache->sizes = NULL;
+       }
+
+       g_free (cache);
+}
+
+static EvThumbsSizeCache *
+ev_thumbnails_size_cache_get (EvDocument *document)
+{
+       EvThumbsSizeCache *cache;
+
+       cache = g_object_get_data (G_OBJECT (document), EV_THUMBNAILS_SIZE_CACHE_KEY);
+       if (!cache) {
+               cache = ev_thumbnails_size_cache_new (document);
+               g_object_set_data_full (G_OBJECT (document),
+                                       EV_THUMBNAILS_SIZE_CACHE_KEY,
+                                       cache,
+                                       (GDestroyNotify)ev_thumbnails_size_cache_free);
+       }
+
+       return cache;
+}
+
 
 static void
 ev_sidebar_thumbnails_dispose (GObject *object)
@@ -114,7 +259,7 @@ ev_sidebar_thumbnails_dispose (GObject *object)
                g_object_unref (sidebar_thumbnails->priv->list_store);
                sidebar_thumbnails->priv->list_store = NULL;
        }
-       
+
        G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
 }
 
@@ -237,7 +382,7 @@ clear_range (EvSidebarThumbnails *sidebar_thumbnails,
                        g_object_unref (job);
                }
 
-               ev_page_cache_get_thumbnail_size (priv->page_cache, start_page,
+               ev_thumbnails_size_cache_get_size (priv->size_cache, start_page,
                                                  priv->rotation,
                                                  &width, &height);
                if (!loading_icon || (width != prev_width && height != prev_height)) {
@@ -417,7 +562,7 @@ ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
 
                page_label = ev_document_get_page_label (priv->document, i);
                page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
-               ev_page_cache_get_thumbnail_size (sidebar_thumbnails->priv->page_cache, i,
+               ev_thumbnails_size_cache_get_size (sidebar_thumbnails->priv->size_cache, i,
                                                  sidebar_thumbnails->priv->rotation,
                                                  &width, &height);
                if (!loading_icon || (width != prev_width && height != prev_height)) {
@@ -667,6 +812,7 @@ ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page,
                return;
        }
 
+       priv->size_cache = ev_thumbnails_size_cache_get (document);
        priv->document = document;
        priv->n_pages = ev_document_get_n_pages (document);
        priv->loading_icons = g_hash_table_new_full (g_str_hash,