char *title;
char **page_labels;
+ gint max_label_chars;
gboolean has_labels;
gboolean uniform;
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;
};
struct _EvPageCacheClass
ev_page_cache_init (EvPageCache *page_cache)
{
page_cache->current_page = -1;
+ page_cache->max_label_chars = 0;
}
static void
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 *
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;
+ page_cache->max_width = 0;
+ page_cache->max_height = 0;
doc_info = ev_document_get_info (document);
if (doc_info->fields_mask & EV_DOCUMENT_INFO_TITLE) {
ev_document_get_page_size (document, i, &page_width, &page_height);
page_cache->page_labels[i] = ev_document_get_page_label (document, i);
-
- if (!page_cache->has_labels && page_cache->page_labels[i] != NULL) {
- gchar *expected_label;
+
+ if (page_cache->page_labels[i] != NULL) {
+
+ page_cache->max_label_chars = MAX(page_cache->max_label_chars,
+ g_utf8_strlen (page_cache->page_labels[i], 256));
+ if (!page_cache->has_labels) {
+ gchar *expected_label;
- expected_label = g_strdup_printf ("%d", i + 1);
- if (strcmp (expected_label, page_cache->page_labels[i]))
- page_cache->has_labels = TRUE;
- g_free (expected_label);
+ expected_label = g_strdup_printf ("%d", i + 1);
+ if (strcmp (expected_label, page_cache->page_labels[i]))
+ page_cache->has_labels = TRUE;
+ g_free (expected_label);
+ }
}
- 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->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];
+ }
+ }
+ }
+
+ page_cache->page_info = ev_document_get_info (document);
+
/* make some sanity check assertions */
if (! page_cache->uniform)
g_assert (page_cache->size_cache != NULL);
g_return_val_if_fail (page_label != NULL, FALSE);
/* First, look for a literal label match */
- for (i = 0; i < page_cache->n_pages && page_cache->has_labels; i ++) {
+ for (i = 0; i < page_cache->n_pages; i ++) {
if (page_cache->page_labels[i] != NULL &&
! strcmp (page_label, page_cache->page_labels[i])) {
ev_page_cache_set_current_page (page_cache, i);
}
if (width)
- *width = (*width) * scale;
+ *width = (int) ((*width) * scale + 0.5);
if (width)
- *height = (*height) * scale;
+ *height = (int) ((*height) * scale + 0.5);
}
-/* 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
+ev_page_cache_get_max_label_chars (EvPageCache *page_cache)
+{
+ g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), 0);
+
+ return page_cache->max_label_chars;
+}
gchar *
ev_page_cache_get_page_label (EvPageCache *page_cache,
return page_cache->has_labels;
}
+const EvDocumentInfo *
+ev_page_cache_get_info (EvPageCache *page_cache)
+{
+ g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
+
+ return page_cache->page_info;
+}
+
+
gboolean
ev_page_cache_next_page (EvPageCache *page_cache)
{
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff