--- /dev/null
+/* this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2010 Carlos Garcia Campos <carlosgc@gnome.org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+
+#include <glib/gi18n-lib.h>
+#include <libgxps/gxps.h>
+
+#include "xps-document.h"
+#include "ev-document-links.h"
+#include "ev-document-misc.h"
+
+struct _XPSDocument {
+ EvDocument object;
+
+ GFile *file;
+ GXPSFile *xps;
+ GXPSDocument *doc;
+};
+
+struct _XPSDocumentClass {
+ EvDocumentClass parent_class;
+};
+
+static void xps_document_document_links_iface_init (EvDocumentLinksInterface *iface);
+
+EV_BACKEND_REGISTER_WITH_CODE (XPSDocument, xps_document,
+ {
+ EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
+ xps_document_document_links_iface_init);
+ })
+
+/* XPSDocument */
+static void
+xps_document_init (XPSDocument *ps_document)
+{
+}
+
+static void
+xps_document_dispose (GObject *object)
+{
+ XPSDocument *xps = XPS_DOCUMENT (object);
+
+ if (xps->file) {
+ g_object_unref (xps->file);
+ xps->file = NULL;
+ }
+
+ if (xps->xps) {
+ g_object_unref (xps->xps);
+ xps->xps = NULL;
+ }
+
+ if (xps->doc) {
+ g_object_unref (xps->doc);
+ xps->doc = NULL;
+ }
+
+ G_OBJECT_CLASS (xps_document_parent_class)->dispose (object);
+}
+
+/* EvDocumentIface */
+static gboolean
+xps_document_load (EvDocument *document,
+ const char *uri,
+ GError **error)
+{
+ XPSDocument *xps = XPS_DOCUMENT (document);
+
+ xps->file = g_file_new_for_uri (uri);
+ xps->xps = gxps_file_new (xps->file, error);
+
+ if (!xps->xps)
+ return FALSE;
+
+ /* FIXME: what if there are multiple docs? */
+ xps->doc = gxps_file_get_document (xps->xps, 0, error);
+ if (!xps->doc) {
+ g_object_unref (xps->xps);
+ xps->xps = NULL;
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+xps_document_save (EvDocument *document,
+ const char *uri,
+ GError **error)
+{
+ XPSDocument *xps = XPS_DOCUMENT (document);
+ GFile *dest;
+ gboolean retval;
+
+ dest = g_file_new_for_uri (uri);
+ retval = g_file_copy (xps->file, dest,
+ G_FILE_COPY_TARGET_DEFAULT_PERMS |
+ G_FILE_COPY_OVERWRITE,
+ NULL, NULL, NULL, error);
+ g_object_unref (dest);
+
+ return retval;
+}
+
+static gint
+xps_document_get_n_pages (EvDocument *document)
+{
+ XPSDocument *xps = XPS_DOCUMENT (document);
+
+ return gxps_document_get_n_pages (xps->doc);
+}
+
+static EvPage *
+xps_document_get_page (EvDocument *document,
+ gint index)
+{
+ XPSDocument *xps = XPS_DOCUMENT (document);
+ GXPSPage *xps_page;
+ EvPage *page;
+
+ xps_page = gxps_document_get_page (xps->doc, index, NULL);
+ page = ev_page_new (index);
+ if (xps_page) {
+ page->backend_page = (EvBackendPage)xps_page;
+ page->backend_destroy_func = (EvBackendPageDestroyFunc)g_object_unref;
+ }
+
+ return page;
+}
+
+static void
+xps_document_get_page_size (EvDocument *document,
+ EvPage *page,
+ double *width,
+ double *height)
+{
+ GXPSPage *xps_page;
+ guint w, h;
+
+ xps_page = GXPS_PAGE (page->backend_page);
+
+ gxps_page_get_size (xps_page, &w, &h);
+
+ if (width)
+ *width = (gdouble)w;
+ if (height)
+ *height = (gdouble)h;
+}
+
+static EvDocumentInfo *
+xps_document_get_info (EvDocument *document)
+{
+ XPSDocument *xps = XPS_DOCUMENT (document);
+ EvDocumentInfo *info;
+
+ info = g_new0 (EvDocumentInfo, 1);
+ info->fields_mask =
+ EV_DOCUMENT_INFO_N_PAGES |
+ EV_DOCUMENT_INFO_PAPER_SIZE;
+
+
+ if (gxps_document_get_n_pages (xps->doc) > 0) {
+ ev_document_get_page_size (document, 0,
+ &(info->paper_width),
+ &(info->paper_height));
+ info->paper_width = info->paper_width / 96.0f * 25.4f;
+ info->paper_height = info->paper_height / 96.0f * 25.4f;
+ }
+
+ info->n_pages = gxps_document_get_n_pages (xps->doc);
+
+ return info;
+}
+
+static gboolean
+xps_document_get_backend_info (EvDocument *document,
+ EvDocumentBackendInfo *info)
+{
+ info->name = "libgxps";
+ /* FIXME */
+ info->version = "";
+
+ return TRUE;
+}
+
+static cairo_surface_t *
+xps_document_render (EvDocument *document,
+ EvRenderContext *rc)
+{
+ GXPSPage *xps_page;
+ guint page_width, page_height;
+ guint width, height;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+ GError *error = NULL;
+
+ xps_page = GXPS_PAGE (rc->page->backend_page);
+
+ gxps_page_get_size (xps_page, &page_width, &page_height);
+ if (rc->rotation == 90 || rc->rotation == 270) {
+ width = (guint) ((page_height * rc->scale) + 0.5);
+ height = (guint) ((page_width * rc->scale) + 0.5);
+ } else {
+ width = (guint) ((page_width * rc->scale) + 0.5);
+ height = (guint) ((page_height * rc->scale) + 0.5);
+ }
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+ width, height);
+ cr = cairo_create (surface);
+
+ cairo_set_source_rgb (cr, 1., 1., 1.);
+ cairo_paint (cr);
+
+ switch (rc->rotation) {
+ case 90:
+ cairo_translate (cr, width, 0);
+ break;
+ case 180:
+ cairo_translate (cr, width, height);
+ break;
+ case 270:
+ cairo_translate (cr, 0, height);
+ break;
+ default:
+ cairo_translate (cr, 0, 0);
+ }
+
+ cairo_scale (cr, rc->scale, rc->scale);
+ cairo_rotate (cr, rc->rotation * G_PI / 180.0);
+ gxps_page_render (xps_page, cr, &error);
+ cairo_destroy (cr);
+
+ if (error) {
+ g_warning ("Error rendering page %d: %s\n",
+ rc->page->index, error->message);
+ g_error_free (error);
+ }
+
+ return surface;
+}
+
+static void
+xps_document_class_init (XPSDocumentClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
+
+ object_class->dispose = xps_document_dispose;
+
+ ev_document_class->load = xps_document_load;
+ ev_document_class->save = xps_document_save;
+ ev_document_class->get_n_pages = xps_document_get_n_pages;
+ ev_document_class->get_page = xps_document_get_page;
+ ev_document_class->get_page_size = xps_document_get_page_size;
+ ev_document_class->get_info = xps_document_get_info;
+ ev_document_class->get_backend_info = xps_document_get_backend_info;
+ ev_document_class->render = xps_document_render;
+}
+
+/* EvDocumentLinks */
+static gboolean
+xps_document_links_has_document_links (EvDocumentLinks *document_links)
+{
+ XPSDocument *xps_document = XPS_DOCUMENT (document_links);
+ GXPSDocumentStructure *structure;
+ gboolean retval;
+
+ structure = gxps_document_get_structure (xps_document->doc);
+ if (!structure)
+ return FALSE;
+
+ retval = gxps_document_structure_has_outline (structure);
+ g_object_unref (structure);
+
+ return retval;
+}
+
+static EvLink *
+ev_link_from_target (XPSDocument *xps_document,
+ GXPSLinkTarget *target)
+{
+ EvLinkAction *ev_action;
+
+ if (gxps_link_target_is_internal (target)) {
+ EvLinkDest *dest = NULL;
+ guint doc;
+ const gchar *anchor;
+
+ anchor = gxps_link_target_get_anchor (target);
+
+ /* FIXME: multidoc */
+ doc = gxps_file_get_document_for_link_target (xps_document->xps, target);
+ if (doc == 0) {
+ if (!anchor)
+ return NULL;
+
+ dest = ev_link_dest_new_named (anchor);
+ ev_action = ev_link_action_new_dest (dest);
+ } else {
+ gchar *filename;
+
+ /* FIXME: remote uri? */
+ filename = g_file_get_path (xps_document->file);
+
+ if (anchor)
+ dest = ev_link_dest_new_named (anchor);
+ ev_action = ev_link_action_new_remote (dest, filename);
+ g_free (filename);
+ }
+ } else {
+ const gchar *uri;
+
+ uri = gxps_link_target_get_uri (target);
+ ev_action = ev_link_action_new_external_uri (uri);
+ }
+
+ return ev_link_new (NULL, ev_action);
+}
+
+static void
+build_tree (XPSDocument *xps_document,
+ GtkTreeModel *model,
+ GtkTreeIter *parent,
+ GXPSOutlineIter *iter)
+{
+ do {
+ GtkTreeIter tree_iter;
+ GXPSOutlineIter child_iter;
+ EvLink *link;
+ GXPSLinkTarget *target;
+ gchar *title;
+
+ target = gxps_outline_iter_get_target (iter);
+ title = g_markup_escape_text (gxps_outline_iter_get_description (iter), -1);
+ link = ev_link_from_target (xps_document, target);
+ gxps_link_target_free (target);
+
+ gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
+ gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
+ EV_DOCUMENT_LINKS_COLUMN_MARKUP, title,
+ EV_DOCUMENT_LINKS_COLUMN_LINK, link,
+ EV_DOCUMENT_LINKS_COLUMN_EXPAND, FALSE,
+ -1);
+ g_object_unref (link);
+ g_free (title);
+
+ if (gxps_outline_iter_children (&child_iter, iter))
+ build_tree (xps_document, model, &tree_iter, &child_iter);
+ } while (gxps_outline_iter_next (iter));
+}
+
+static GtkTreeModel *
+xps_document_links_get_links_model (EvDocumentLinks *document_links)
+{
+ XPSDocument *xps_document = XPS_DOCUMENT (document_links);
+ GXPSDocumentStructure *structure;
+ GXPSOutlineIter iter;
+ GtkTreeModel *model = NULL;
+
+ structure = gxps_document_get_structure (xps_document->doc);
+ if (!structure)
+ return NULL;
+
+ if (gxps_document_structure_outline_iter_init (&iter, structure)) {
+ model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
+ G_TYPE_STRING,
+ G_TYPE_OBJECT,
+ G_TYPE_BOOLEAN,
+ G_TYPE_STRING);
+ build_tree (xps_document, model, NULL, &iter);
+ }
+
+ g_object_unref (structure);
+
+ return model;
+}
+
+static EvMappingList *
+xps_document_links_get_links (EvDocumentLinks *document_links,
+ EvPage *page)
+{
+ XPSDocument *xps_document = XPS_DOCUMENT (document_links);
+ GXPSPage *xps_page;
+ GList *retval = NULL;
+ GList *mapping_list;
+ GList *list;
+
+ xps_page = GXPS_PAGE (page->backend_page);
+ mapping_list = gxps_page_get_links (xps_page, NULL);
+
+ for (list = mapping_list; list; list = list->next) {
+ GXPSLink *xps_link;
+ GXPSLinkTarget *target;
+ EvMapping *ev_link_mapping;
+ cairo_rectangle_t area;
+
+ xps_link = (GXPSLink *)list->data;
+ ev_link_mapping = g_new (EvMapping, 1);
+ gxps_link_get_area (xps_link, &area);
+ target = gxps_link_get_target (xps_link);
+ gxps_link_get_area (xps_link, &area);
+ ev_link_mapping->data = ev_link_from_target (xps_document, target);
+
+ ev_link_mapping->area.x1 = area.x;
+ ev_link_mapping->area.x2 = area.x + area.width;
+ ev_link_mapping->area.y1 = area.y;
+ ev_link_mapping->area.y2 = area.y + area.height;
+
+ retval = g_list_prepend (retval, ev_link_mapping);
+ gxps_link_free (xps_link);
+ }
+
+ g_list_free (mapping_list);
+
+ return ev_mapping_list_new (page->index, g_list_reverse (retval), (GDestroyNotify)g_object_unref);
+}
+
+static EvLinkDest *
+xps_document_links_find_link_dest (EvDocumentLinks *document_links,
+ const gchar *link_name)
+{
+ XPSDocument *xps_document = XPS_DOCUMENT (document_links);
+ GXPSPage *xps_page;
+ gint page;
+ cairo_rectangle_t area;
+ EvLinkDest *dest = NULL;
+
+ page = gxps_document_get_page_for_anchor (xps_document->doc, link_name);
+ if (page == -1)
+ return NULL;
+
+ xps_page = gxps_document_get_page (xps_document->doc, page, NULL);
+ if (!xps_page)
+ return NULL;
+
+ if (gxps_page_get_anchor_destination (xps_page, link_name, &area, NULL))
+ dest = ev_link_dest_new_xyz (page, area.x, area.y, 1., TRUE, TRUE, FALSE);
+
+ g_object_unref (xps_page);
+
+ return dest;
+}
+
+static gint
+xps_document_links_find_link_page (EvDocumentLinks *document_links,
+ const gchar *link_name)
+{
+ XPSDocument *xps_document = XPS_DOCUMENT (document_links);
+
+ return gxps_document_get_page_for_anchor (xps_document->doc, link_name);
+}
+
+static void
+xps_document_document_links_iface_init (EvDocumentLinksInterface *iface)
+{
+ iface->has_document_links = xps_document_links_has_document_links;
+ iface->get_links_model = xps_document_links_get_links_model;
+ iface->get_links = xps_document_links_get_links;
+ iface->find_link_dest = xps_document_links_find_link_dest;
+ iface->find_link_page = xps_document_links_find_link_page;
+}
https://www.fi.muni.cz/~kas/git / evince.git / commitdiff