#include "config.h"
+#include <stdlib.h>
+#include <string.h>
+
#include "ev-document.h"
+#define EV_DOCUMENT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EV_TYPE_DOCUMENT, EvDocumentPrivate))
+
+typedef struct _EvPageSize
+{
+ gdouble width;
+ gdouble height;
+} EvPageSize;
+
+struct _EvDocumentPrivate
+{
+ gint n_pages;
+
+ gboolean uniform;
+ gdouble uniform_width;
+ gdouble uniform_height;
+
+ gdouble max_width;
+ gdouble max_height;
+ gint max_label;
+
+ gchar **page_labels;
+ EvPageSize *page_sizes;
+ EvDocumentInfo *info;
+};
+
+static gint _ev_document_get_n_pages (EvDocument *document);
+static void _ev_document_get_page_size (EvDocument *document,
+ EvPage *page,
+ double *width,
+ double *height);
+static gchar *_ev_document_get_page_label (EvDocument *document,
+ EvPage *page);
+static EvDocumentInfo *_ev_document_get_info (EvDocument *document);
+
GMutex *ev_doc_mutex = NULL;
GMutex *ev_fc_mutex = NULL;
return g_new0 (EvDocumentInfo, 1);
}
+static void
+ev_document_finalize (GObject *object)
+{
+ EvDocument *document = EV_DOCUMENT (object);
+
+ if (document->priv->page_sizes) {
+ g_free (document->priv->page_sizes);
+ document->priv->page_sizes = NULL;
+ }
+
+ if (document->priv->page_labels) {
+ gint i;
+
+ for (i = 0; i < document->priv->n_pages; i++) {
+ g_free (document->priv->page_labels[i]);
+ }
+ g_free (document->priv->page_labels);
+ document->priv->page_labels = NULL;
+ }
+
+ if (document->priv->info) {
+ ev_document_info_free (document->priv->info);
+ document->priv->info = NULL;
+ }
+
+ G_OBJECT_CLASS (ev_document_parent_class)->finalize (object);
+}
+
static void
ev_document_init (EvDocument *document)
{
+ document->priv = EV_DOCUMENT_GET_PRIVATE (document);
+
+ /* Assume all pages are the same size until proven otherwise */
+ document->priv->uniform = TRUE;
}
static void
ev_document_class_init (EvDocumentClass *klass)
{
+ GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
+
+ g_type_class_add_private (g_object_class, sizeof (EvDocumentPrivate));
+
klass->get_page = ev_document_impl_get_page;
klass->get_info = ev_document_impl_get_info;
+
+ g_object_class->finalize = ev_document_finalize;
}
GMutex *
EV_DOCUMENT_ERROR_INVALID,
"Internal error in backend");
}
+ } else {
+ gint i;
+ EvDocumentPrivate *priv = document->priv;
+
+ /* Cache some info about the document to avoid
+ * going to the backends since it requires locks
+ */
+ priv->n_pages = _ev_document_get_n_pages (document);
+ priv->info = _ev_document_get_info (document);
+
+ for (i = 0; i < priv->n_pages; i++) {
+ EvPage *page = ev_document_get_page (document, i);
+ gdouble page_width = 0;
+ gdouble page_height = 0;
+ EvPageSize *page_size;
+ gchar *page_label;
+
+ _ev_document_get_page_size (document, page, &page_width, &page_height);
+
+ if (i == 0) {
+ priv->uniform_width = page_width;
+ priv->uniform_height = page_height;
+ } else if (priv->uniform &&
+ (priv->uniform_width != page_width ||
+ priv->uniform_height != page_height)) {
+ /* It's a different page size. Backfill the array. */
+ int j;
+
+ priv->page_sizes = g_new0 (EvPageSize, priv->n_pages);
+
+ for (j = 0; j < i; j++) {
+ page_size = &(priv->page_sizes[j]);
+ page_size->width = priv->uniform_width;
+ page_size->height = priv->uniform_height;
+ }
+ priv->uniform = FALSE;
+ }
+ if (!priv->uniform) {
+ page_size = &(priv->page_sizes[i]);
+
+ page_size->width = page_width;
+ page_size->height = page_height;
+
+ if (page_width > priv->max_width)
+ priv->max_width = page_width;
+
+ if (page_height > priv->max_height)
+ priv->max_height = page_height;
+ }
+
+ page_label = _ev_document_get_page_label (document, page);
+ if (page_label) {
+ if (priv->page_labels) {
+ priv->page_labels[i] = page_label;
+ } else {
+ gchar *numeric_label;
+
+ numeric_label = g_strdup_printf ("%d", i + 1);
+ if (strcmp (numeric_label, page_label) != 0) {
+ priv->page_labels = g_new0 (gchar *, priv->n_pages);
+ priv->page_labels[i] = page_label;
+ }
+ g_free (numeric_label);
+ }
+ priv->max_label = MAX (priv->max_label,
+ g_utf8_strlen (page_label, 256));
+ }
+
+ g_object_unref (page);
+ }
+
+ if (priv->uniform) {
+ priv->max_width = priv->uniform_width;
+ priv->max_height = priv->uniform_height;
+ }
}
return retval;
return klass->save (document, uri, error);
}
-int
-ev_document_get_n_pages (EvDocument *document)
+EvPage *
+ev_document_get_page (EvDocument *document,
+ gint index)
+{
+ EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
+
+ return klass->get_page (document, index);
+}
+
+static gint
+_ev_document_get_n_pages (EvDocument *document)
{
EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
return klass->get_n_pages (document);
}
-EvPage *
-ev_document_get_page (EvDocument *document,
- gint index)
+gint
+ev_document_get_n_pages (EvDocument *document)
+{
+ return document->priv->n_pages;
+}
+
+static void
+_ev_document_get_page_size (EvDocument *document,
+ EvPage *page,
+ double *width,
+ double *height)
{
EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
- return klass->get_page (document, index);
+ klass->get_page_size (document, page, width, height);
}
void
ev_document_get_page_size (EvDocument *document,
- EvPage *page,
+ gint page_index,
double *width,
double *height)
+{
+ if (width)
+ *width = document->priv->uniform ?
+ document->priv->uniform_width :
+ document->priv->page_sizes[page_index].width;
+ if (height)
+ *height = document->priv->uniform ?
+ document->priv->uniform_height :
+ document->priv->page_sizes[page_index].height;
+}
+
+static gchar *
+_ev_document_get_page_label (EvDocument *document,
+ EvPage *page)
{
EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
- klass->get_page_size (document, page, width, height);
+ return klass->get_page_label ?
+ klass->get_page_label (document, page) : NULL;
}
gchar *
ev_document_get_page_label (EvDocument *document,
- EvPage *page)
+ gint page_index)
+{
+ return (document->priv->page_labels && document->priv->page_labels[page_index]) ?
+ g_strdup (document->priv->page_labels[page_index]) :
+ g_strdup_printf ("%d", page_index + 1);
+}
+
+static EvDocumentInfo *
+_ev_document_get_info (EvDocument *document)
{
EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
- return klass->get_page_label ?
- klass->get_page_label (document, page) : NULL;
+ return klass->get_info (document);
}
EvDocumentInfo *
ev_document_get_info (EvDocument *document)
{
- EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS (document);
-
- return klass->get_info (document);
+ return document->priv->info;
}
cairo_surface_t *
return klass->render (document, rc);
}
+const gchar *
+ev_document_get_title (EvDocument *document)
+{
+ return (document->priv->info->fields_mask & EV_DOCUMENT_INFO_TITLE) ?
+ document->priv->info->title : NULL;
+}
+
+gboolean
+ev_document_is_page_size_uniform (EvDocument *document)
+{
+ return document->priv->uniform;
+}
+
+void
+ev_document_get_max_page_size (EvDocument *document,
+ gdouble *width,
+ gdouble *height)
+{
+ if (width)
+ *width = document->priv->max_width;
+ if (height)
+ *height = document->priv->max_height;
+}
+
+gint
+ev_document_get_max_label_len (EvDocument *document)
+{
+ return document->priv->max_label;
+}
+
+gboolean
+ev_document_has_text_page_labels (EvDocument *document)
+{
+ return document->priv->page_labels != NULL;
+}
+
+gboolean
+ev_document_find_page_by_label (EvDocument *document,
+ const gchar *page_label,
+ gint *page_index)
+{
+ gint i, page;
+ glong value;
+ gchar *endptr = NULL;
+ EvDocumentPrivate *priv = document->priv;
+
+ /* First, look for a literal label match */
+ for (i = 0; priv->page_labels && i < priv->n_pages; i ++) {
+ if (priv->page_labels[i] != NULL &&
+ ! strcmp (page_label, priv->page_labels[i])) {
+ *page_index = i;
+ return TRUE;
+ }
+ }
+
+ /* Second, look for a match with case insensitively */
+ for (i = 0; priv->page_labels && i < priv->n_pages; i++) {
+ if (priv->page_labels[i] != NULL &&
+ ! strcasecmp (page_label, priv->page_labels[i])) {
+ *page_index = 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 < priv->n_pages) {
+ *page_index = page;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
/* EvDocumentInfo */
EV_DEFINE_BOXED_TYPE (EvDocumentInfo, ev_document_info, ev_document_info_copy, ev_document_info_free)
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff