X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=backend%2Fev-page-cache.c;h=935347e19430c9ee4e899ea68c94041a73b37a60;hb=429224b821ebc694edd283e8a0d23c6b86d8d078;hp=e2771b66c32d7b0d25d1c81d92c4d0d6eeb72be8;hpb=1c0d19bd22598eca159c3febdcdaf4168891cb8f;p=evince.git

diff --git a/backend/ev-page-cache.c b/backend/ev-page-cache.c
index e2771b66..935347e1 100644
--- a/backend/ev-page-cache.c
+++ b/backend/ev-page-cache.c
@@ -1,10 +1,12 @@
 #include "ev-page-cache.h"
 #include "ev-job-queue.h"
+#include <stdlib.h>
+#include <string.h>
 
 typedef struct _EvPageCacheInfo
 {
-	gint width;
-	gint height;
+	double width;
+	double height;
 }
 EvPageCacheInfo;
 
@@ -16,10 +18,11 @@ struct _EvPageCache
 	gint current_page;
 	int n_pages;
 	char *title;
+	char **page_labels;
 
 	gboolean uniform;
-	gint uniform_width;
-	gint uniform_height;
+	double uniform_width;
+	double uniform_height;
 
 	EvPageCacheInfo *size_cache;
 };
@@ -48,7 +51,7 @@ G_DEFINE_TYPE (EvPageCache, ev_page_cache, G_TYPE_OBJECT)
 static void
 ev_page_cache_init (EvPageCache *page_cache)
 {
-	page_cache->current_page = 1;
+	page_cache->current_page = -1;
 }
 
 static void
@@ -86,6 +89,7 @@ ev_page_cache_finalize (GObject *object)
 EvPageCache *
 _ev_page_cache_new (EvDocument *document)
 {
+	EvDocumentInfo *doc_info;
 	EvPageCache *page_cache;
 	EvPageCacheInfo *info;
 	gint i;
@@ -99,16 +103,24 @@ _ev_page_cache_new (EvDocument *document)
 	/* Assume all pages are the same size until proven otherwise */
 	page_cache->uniform = TRUE;
 	page_cache->n_pages = ev_document_get_n_pages (document);
-	page_cache->title = ev_document_get_title (document);
+	page_cache->page_labels = g_new0 (char *, page_cache->n_pages);
 
-	ev_document_set_scale (document, 1.0);
-	for (i = 1; i <= page_cache->n_pages; i++) {
-		gint page_width = 0;
-		gint 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);
+	} else {
+		page_cache->title = NULL;
+	}
+	g_free (doc_info);
+
+	for (i = 0; i < page_cache->n_pages; i++) {
+		double page_width = 0;
+		double page_height = 0;
 
 		ev_document_get_page_size (document, i, &page_width, &page_height);
+		page_cache->page_labels[i] = ev_document_get_page_label (document, i);
 
-		if (i == 1) {
+		if (i == 0) {
 			page_cache->uniform_width = page_width;
 			page_cache->uniform_height = page_height;
 		} else if (page_cache->uniform &&
@@ -119,17 +131,17 @@ _ev_page_cache_new (EvDocument *document)
 
 			page_cache->size_cache = g_new0 (EvPageCacheInfo, page_cache->n_pages);
 
-			for (j = 1; j < i; j++) {
-				info = &(page_cache->size_cache [j - 1]);
-				info->width = page_width;
-				info->height = page_height;
+			for (j = 0; j < i; j++) {
+				info = &(page_cache->size_cache [j]);
+				info->width = page_cache->uniform_width;
+				info->height = page_cache->uniform_height;
 			}
 			page_cache->uniform = FALSE;
 
 		}
 
 		if (! page_cache->uniform) {
-			info = &(page_cache->size_cache [i - 1]);
+			info = &(page_cache->size_cache [i]);
 
 			info->width = page_width;
 			info->height = page_height;
@@ -137,14 +149,14 @@ _ev_page_cache_new (EvDocument *document)
 	}
 
 	/* make some sanity check assertions */
-	g_assert (page_cache->n_pages > 0);
 	if (! page_cache->uniform)
 		g_assert (page_cache->size_cache != NULL);
-	if (page_cache->uniform)
-		g_assert (page_cache->uniform_width > 0 && page_cache->uniform_height > 0);
 
 	g_mutex_unlock (EV_DOC_MUTEX);
 
+	if (page_cache->n_pages > 0)
+		ev_page_cache_set_current_page (page_cache, 0);
+
 	return page_cache;
 }
 
@@ -169,7 +181,7 @@ ev_page_cache_set_current_page (EvPageCache *page_cache,
 				int          page)
 {
 	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page > 0 || page <= page_cache->n_pages);
+	g_return_if_fail (page >= 0 || page < page_cache->n_pages);
 
 	if (page == page_cache->current_page)
 		return;
@@ -178,6 +190,45 @@ ev_page_cache_set_current_page (EvPageCache *page_cache,
 	g_signal_emit (page_cache, signals[PAGE_CHANGED], 0, page);
 }
 
+gboolean
+ev_page_cache_set_page_label (EvPageCache *page_cache,
+			      const char  *page_label)
+{
+	gint i, page;
+	long value;
+	char *endptr = NULL;
+	
+	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
+	g_return_val_if_fail (page_label != NULL, FALSE);
+
+	/* First, look for a literal label match */
+	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);
+			return TRUE;
+		}
+	}
+
+	/* Next, parse the label, and see if the number fits */
+	value = strtol (page_label, &endptr, 10);
+	if (endptr[0] == '\0') {
+		/* Page number is an integer */
+		page = MIN (G_MAXINT, value);
+
+		/* convert from a page label to a page offset */
+		page --;
+		if (page >= 0 &&
+		    page < page_cache->n_pages &&
+		    page_cache->page_labels[page] == NULL) {
+			ev_page_cache_set_current_page (page_cache, page);
+			return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+
 void
 ev_page_cache_set_link (EvPageCache *page_cache,
 			EvLink      *link)
@@ -204,7 +255,7 @@ ev_page_cache_get_size (EvPageCache *page_cache,
 			gint        *height)
 {
 	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page > 0 && page <= page_cache->n_pages);
+	g_return_if_fail (page >= 0 && page < page_cache->n_pages);
 
 	if (page_cache->uniform) {
 		if (width)
@@ -214,7 +265,7 @@ ev_page_cache_get_size (EvPageCache *page_cache,
 	} else {
 		EvPageCacheInfo *info;
 
-		info = &(page_cache->size_cache [page - 1]);
+		info = &(page_cache->size_cache [page]);
 		
 		if (width)
 			*width = info->width;
@@ -228,13 +279,26 @@ ev_page_cache_get_size (EvPageCache *page_cache,
 		*height = (*height) * scale;
 
 }
+gchar *
+ev_page_cache_get_page_label (EvPageCache *page_cache,
+			      gint         page)
+{
+	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
+	g_return_val_if_fail (page >= 0 && page < page_cache->n_pages, NULL);
+
+	if (page_cache->page_labels[page] == NULL)
+		return g_strdup_printf ("%d", page + 1);
+
+	return g_strdup (page_cache->page_labels[page]);
+}
+
 
 gboolean
 ev_page_cache_next_page (EvPageCache *page_cache)
 {
 	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
 
-	if (page_cache->current_page >= page_cache->n_pages)
+	if (page_cache->current_page >= page_cache->n_pages - 1)
 		return FALSE;
 
 	ev_page_cache_set_current_page (page_cache, page_cache->current_page + 1);
@@ -247,7 +311,7 @@ ev_page_cache_prev_page (EvPageCache *page_cache)
 {
 	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
 
-	if (page_cache->current_page <= 1)
+	if (page_cache->current_page <= 0)
 		return FALSE;
 
 	ev_page_cache_set_current_page (page_cache, page_cache->current_page - 1);