double uniform_width;
double uniform_height;
- double max_width_page_width;
- double max_width_page_height;
- double max_height_page_width;
- double max_height_page_height;
+ double max_width;
+ double max_height;
+ double* height_to_page;
+ double* dual_height_to_page;
EvPageCacheInfo *size_cache;
EvDocumentInfo *page_info;
g_free (page_cache->title);
g_free (page_cache->size_cache);
+ g_free (page_cache->height_to_page);
+ g_free (page_cache->dual_height_to_page);
+
ev_document_info_free (page_cache->page_info);
}
EvPageCache *
_ev_page_cache_new (EvDocument *document)
{
- EvDocumentInfo *doc_info;
EvPageCache *page_cache;
EvPageCacheInfo *info;
gint i;
+ double saved_height;
page_cache = (EvPageCache *) g_object_new (EV_TYPE_PAGE_CACHE, NULL);
page_cache->has_labels = FALSE;
page_cache->n_pages = ev_document_get_n_pages (document);
page_cache->page_labels = g_new0 (char *, page_cache->n_pages);
- page_cache->max_width_page_width = 0;
- page_cache->max_width_page_height = 0;
- page_cache->max_height_page_width = 0;
- page_cache->max_height_page_height = 0;
-
- doc_info = ev_document_get_info (document);
- if (doc_info->fields_mask & EV_DOCUMENT_INFO_TITLE) {
- page_cache->title = g_strdup (doc_info->title);
+ page_cache->max_width = 0;
+ page_cache->max_height = 0;
+ page_cache->page_info = ev_document_get_info (document);
+
+ if (page_cache->page_info->fields_mask & EV_DOCUMENT_INFO_TITLE) {
+ page_cache->title = g_strdup (page_cache->page_info->title);
} else {
page_cache->title = NULL;
}
- g_free (doc_info);
for (i = 0; i < page_cache->n_pages; i++) {
double page_width = 0;
}
}
- if (page_width > page_cache->max_width_page_width) {
- page_cache->max_width_page_width = page_width;
- page_cache->max_width_page_height = page_height;
+ if (page_width > page_cache->max_width) {
+ page_cache->max_width = page_width;
}
- if (page_height > page_cache->max_height_page_height) {
- page_cache->max_height_page_width = page_width;
- page_cache->max_height_page_height = page_height;
+ if (page_height > page_cache->max_height) {
+ page_cache->max_height = page_height;
}
-
+
if (i == 0) {
page_cache->uniform_width = page_width;
page_cache->uniform_height = page_height;
}
}
- page_cache->page_info = ev_document_get_info (document);
+ page_cache->height_to_page = g_new0(double, page_cache->n_pages);
+ page_cache->dual_height_to_page = g_new0(double, page_cache->n_pages / 2 + 1);
+
+ saved_height = 0;
+ for (i = 0; i < page_cache->n_pages; i++) {
+
+ if (page_cache->uniform) {
+ page_cache->height_to_page [i] = (i + 1) * page_cache->uniform_height;
+ } else {
+ page_cache->height_to_page [i] = saved_height + page_cache->size_cache [i].height;
+ saved_height = page_cache->height_to_page [i];
+ }
+ }
+
+ saved_height = 0;
+ for (i = 0; i < page_cache->n_pages; i += 2) {
+
+ if (page_cache->uniform) {
+ page_cache->dual_height_to_page [i / 2] = (i / 2 + 1) * page_cache->uniform_height;
+ } else {
+ if (i == page_cache->n_pages - 1) {
+ page_cache->dual_height_to_page [i / 2] =
+ saved_height + page_cache->size_cache [i].height;
+ }
+ else {
+ page_cache->dual_height_to_page [i / 2] = saved_height +
+ MAX(page_cache->size_cache [i].height,
+ page_cache->size_cache [i + 1].height);
+ saved_height = page_cache->dual_height_to_page [i / 2];
+ }
+ }
+ }
/* make some sanity check assertions */
if (! page_cache->uniform)
ev_page_cache_set_current_page (page_cache, ev_link_get_page (link));
}
-char *
+const char *
ev_page_cache_get_title (EvPageCache *page_cache)
{
g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
}
-/* Note that these aren't necessarily from the same page.
- */
void
-ev_page_cache_get_max_width_size (EvPageCache *page_cache,
+ev_page_cache_get_max_width (EvPageCache *page_cache,
gfloat scale,
- gint *width,
- gint *height)
+ gint *width)
{
g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
if (width)
- *width = page_cache->max_width_page_width * scale;
- if (height)
- *height = page_cache->max_width_page_height * scale;
+ *width = page_cache->max_width * scale;
}
void
-ev_page_cache_get_max_height_size (EvPageCache *page_cache,
+ev_page_cache_get_max_height (EvPageCache *page_cache,
gfloat scale,
- gint *width,
gint *height)
{
g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
- if (width)
- *width = page_cache->max_height_page_width * scale;
if (height)
- *height = page_cache->max_height_page_height * scale;
+ *height = page_cache->max_height * scale;
+}
+
+void
+ev_page_cache_get_height_to_page (EvPageCache *page_cache,
+ gint page,
+ gfloat scale,
+ gint *height,
+ gint *dual_height)
+{
+ double result = 0.0;
+ double dual_result = 0.0;
+
+ g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
+
+ if (page > 0)
+ result = page_cache->height_to_page [page - 1];
+
+ if (height)
+ *height = result * scale;
+
+ if (page > 1)
+ dual_result = page_cache->dual_height_to_page [page / 2 - 1];
+
+ if (dual_height)
+ *dual_height = dual_result * scale;
}
gint