+++ /dev/null
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
-/* pdfdocument.h: Implementation of EvDocument for PDF
- * Copyright (C) 2004, Red Hat, Inc.
- *
- * This program 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, or (at your option)
- * any later version.
- *
- * This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <gtk/gtk.h>
-#include <poppler.h>
-#include <poppler-document.h>
-#include <poppler-page.h>
-
-#include "ev-poppler.h"
-#include "ev-ps-exporter.h"
-#include "ev-document-find.h"
-#include "ev-document-misc.h"
-#include "ev-document-links.h"
-#include "ev-document-security.h"
-#include "ev-document-thumbnails.h"
-
-
-enum {
- PROP_0,
- PROP_TITLE
-};
-
-
-struct _PdfDocumentClass
-{
- GObjectClass parent_class;
-};
-
-struct _PdfDocument
-{
- GObject parent_instance;
-
- PopplerDocument *document;
- PopplerPage *page;
- double scale;
- gchar *password;
-};
-
-static void pdf_document_document_iface_init (EvDocumentIface *iface);
-static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface);
-static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
-static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface);
-static void pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
- gint page,
- gint size,
- gint *width,
- gint *height);
-static EvLink * ev_link_from_action (PopplerAction *action);
-
-
-G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
- {
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
- pdf_document_document_iface_init);
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
- pdf_document_security_iface_init);
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
- pdf_document_document_thumbnails_iface_init);
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
- pdf_document_document_links_iface_init);
-#if 0
- G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
- pdf_document_ps_exporter_iface_init);
- G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
- pdf_document_find_iface_init);
-#endif
- });
-
-
-
-
-
-
-static void
-pdf_document_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- PdfDocument *pdf_document = PDF_DOCUMENT (object);
-
- switch (prop_id)
- {
- case PROP_TITLE:
- if (pdf_document->document == NULL)
- g_value_set_string (value, NULL);
- else
- g_object_get_property (G_OBJECT (pdf_document->document), "title", value);
- break;
- }
-}
-
-static void
-pdf_document_class_init (PdfDocumentClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
- gobject_class->get_property = pdf_document_get_property;
-
- g_object_class_override_property (gobject_class, PROP_TITLE, "title");
-}
-
-static void
-pdf_document_init (PdfDocument *pdf_document)
-{
- pdf_document->page = NULL;
- pdf_document->scale = 1.0;
- pdf_document->password = NULL;
-}
-
-static void
-convert_error (GError *poppler_error,
- GError **error)
-{
- if (poppler_error == NULL)
- return;
-
- if (poppler_error->domain == POPPLER_ERROR) {
- /* convert poppler errors into EvDocument errors */
- gint code = EV_DOCUMENT_ERROR_INVALID;
- if (poppler_error->code == POPPLER_ERROR_INVALID)
- code = EV_DOCUMENT_ERROR_INVALID;
- else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
- code = EV_DOCUMENT_ERROR_ENCRYPTED;
-
-
- g_set_error (error,
- EV_DOCUMENT_ERROR,
- code,
- poppler_error->message,
- NULL);
- } else {
- g_propagate_error (error, poppler_error);
- }
-}
-
-
-/* EvDocument */
-static gboolean
-pdf_document_save (EvDocument *document,
- const char *uri,
- GError **error)
-{
- gboolean retval;
- GError *poppler_error = NULL;
-
- retval = poppler_document_save (PDF_DOCUMENT (document)->document,
- uri,
- &poppler_error);
- if (! retval)
- convert_error (poppler_error, error);
-
- return retval;
-}
-
-static gboolean
-pdf_document_load (EvDocument *document,
- const char *uri,
- GError **error)
-{
- GError *poppler_error = NULL;
- PdfDocument *pdf_document = PDF_DOCUMENT (document);
-
- pdf_document->document =
- poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
-
- if (pdf_document->document == NULL) {
- convert_error (poppler_error, error);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static int
-pdf_document_get_n_pages (EvDocument *document)
-{
- return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
-}
-
-static void
-pdf_document_set_page (EvDocument *document,
- int page)
-{
- page = CLAMP (page, 0, poppler_document_get_n_pages (PDF_DOCUMENT (document)->document) - 1);
-
- PDF_DOCUMENT (document)->page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page);
-}
-
-static int
-pdf_document_get_page (EvDocument *document)
-{
- PdfDocument *pdf_document;
-
- pdf_document = PDF_DOCUMENT (document);
-
- if (pdf_document->page)
- return poppler_page_get_index (pdf_document->page);
-
- return 1;
-}
-
-static void
-pdf_document_set_scale (EvDocument *document,
- double scale)
-{
- PDF_DOCUMENT (document)->scale = scale;
-}
-
-
-static void
-get_size_from_page (PopplerPage *poppler_page,
- double scale,
- int *width,
- int *height)
-{
- gdouble width_d, height_d;
- poppler_page_get_size (poppler_page, &width_d, &height_d);
- if (width)
- *width = (int) (width_d * scale);
- if (height)
- *height = (int) (height_d * scale);
-
-}
-
-static void
-pdf_document_get_page_size (EvDocument *document,
- int page,
- int *width,
- int *height)
-{
- PopplerPage *poppler_page = NULL;
-
- if (page == -1)
- poppler_page = PDF_DOCUMENT (document)->page;
- else
- poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
- page);
-
- if (poppler_page == NULL)
- poppler_document_get_page (PDF_DOCUMENT (document)->document, 0);
-
- get_size_from_page (poppler_page,
- PDF_DOCUMENT (document)->scale,
- width, height);
-}
-
-static char *
-pdf_document_get_page_label (EvDocument *document,
- int page)
-{
- PopplerPage *poppler_page = NULL;
- char *label = NULL;
-
- if (page == -1)
- poppler_page = PDF_DOCUMENT (document)->page;
- else
- poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
- page);
-
- g_object_get (poppler_page,
- "label", &label,
- NULL);
-
- return label;
-}
-
-static GList *
-pdf_document_get_links (EvDocument *document)
-{
- PdfDocument *pdf_document;
- GList *retval = NULL;
- GList *mapping_list;
- GList *list;
- gint height;
-
- pdf_document = PDF_DOCUMENT (document);
- g_return_val_if_fail (pdf_document->page != NULL, NULL);
-
- mapping_list = poppler_page_get_link_mapping (pdf_document->page);
- get_size_from_page (pdf_document->page, 1.0, NULL, &height);
-
- for (list = mapping_list; list; list = list->next) {
- PopplerLinkMapping *link_mapping;
- EvLinkMapping *ev_link_mapping;
-
- link_mapping = (PopplerLinkMapping *)list->data;
- ev_link_mapping = g_new (EvLinkMapping, 1);
- ev_link_mapping->link = ev_link_from_action (link_mapping->action);
- ev_link_mapping->x1 = link_mapping->area.x1;
- ev_link_mapping->x2 = link_mapping->area.x2;
- /* Invert this for X-style coordinates */
- ev_link_mapping->y1 = height - link_mapping->area.y2;
- ev_link_mapping->y2 = height - link_mapping->area.y1;
-
- retval = g_list_prepend (retval, ev_link_mapping);
- }
-
- poppler_page_free_link_mapping (mapping_list);
-
- return g_list_reverse (retval);
-}
-
-
-static GdkPixbuf *
-pdf_document_render_pixbuf (EvDocument *document)
-{
- PdfDocument *pdf_document;
- GdkPixbuf *pixbuf;
- gint width, height;
-
- pdf_document = PDF_DOCUMENT (document);
- g_return_val_if_fail (pdf_document->page != NULL, NULL);
-
- get_size_from_page (pdf_document->page,
- pdf_document->scale,
- &width, &height);
-
- pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
- FALSE, 8,
- width, height);
-
- poppler_page_render_to_pixbuf (pdf_document->page,
- 0, 0,
- width, height,
- pdf_document->scale,
- pixbuf,
- 0, 0);
-
- return pixbuf;
-}
-
-/* EvDocumentSecurity */
-
-static gboolean
-pdf_document_has_document_security (EvDocumentSecurity *document_security)
-{
- /* FIXME: do we really need to have this? */
- return FALSE;
-}
-
-static void
-pdf_document_set_password (EvDocumentSecurity *document_security,
- const char *password)
-{
- PdfDocument *document = PDF_DOCUMENT (document_security);
-
- if (document->password)
- g_free (document->password);
-
- document->password = g_strdup (password);
-}
-
-
-
-static void
-pdf_document_document_iface_init (EvDocumentIface *iface)
-{
- iface->save = pdf_document_save;
- iface->load = pdf_document_load;
- iface->get_n_pages = pdf_document_get_n_pages;
- iface->set_page = pdf_document_set_page;
- iface->get_page = pdf_document_get_page;
- iface->set_scale = pdf_document_set_scale;
- iface->get_page_size = pdf_document_get_page_size;
- iface->get_page_label = pdf_document_get_page_label;
- iface->get_links = pdf_document_get_links;
- iface->render_pixbuf = pdf_document_render_pixbuf;
-};
-
-static void
-pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
-{
- iface->has_document_security = pdf_document_has_document_security;
- iface->set_password = pdf_document_set_password;
-}
-
-static gboolean
-pdf_document_links_has_document_links (EvDocumentLinks *document_links)
-{
- PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
- PopplerIndexIter *iter;
-
- g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
-
- iter = poppler_index_iter_new (pdf_document->document);
- if (iter == NULL)
- return FALSE;
- poppler_index_iter_free (iter);
-
- return TRUE;
-}
-
-static EvLink *
-ev_link_from_action (PopplerAction *action)
-{
- EvLink *link;
- const char *title;
-
- title = action->any.title;
-
- if (action->type == POPPLER_ACTION_GOTO_DEST) {
- link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1);
- } else if (action->type == POPPLER_ACTION_URI) {
- link = ev_link_new_external (title, action->uri.uri);
- } else {
- link = ev_link_new_title (title);
- }
-
- return link;
-}
-
-
-static void
-build_tree (PdfDocument *pdf_document,
- GtkTreeModel *model,
- GtkTreeIter *parent,
- PopplerIndexIter *iter)
-{
-
- do {
- GtkTreeIter tree_iter;
- PopplerIndexIter *child;
- PopplerAction *action;
- EvLink *link;
-
- action = poppler_index_iter_get_action (iter);
- if (action) {
- gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
- link = ev_link_from_action (action);
- poppler_action_free (action);
-
- gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
- EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link),
- EV_DOCUMENT_LINKS_COLUMN_LINK, link,
- -1);
- child = poppler_index_iter_get_child (iter);
- if (child)
- build_tree (pdf_document, model, &tree_iter, child);
- poppler_index_iter_free (child);
- }
- } while (poppler_index_iter_next (iter));
-}
-
-
-static GtkTreeModel *
-pdf_document_links_get_links_model (EvDocumentLinks *document_links)
-{
- PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
- GtkTreeModel *model = NULL;
- PopplerIndexIter *iter;
-
- g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
-
- iter = poppler_index_iter_new (pdf_document->document);
- /* Create the model iff we have items*/
- if (iter != NULL) {
- model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
- G_TYPE_STRING,
- G_TYPE_POINTER);
- build_tree (pdf_document, model, NULL, iter);
- poppler_index_iter_free (iter);
- }
-
-
- return model;
-}
-
-
-static void
-pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
-{
- iface->has_document_links = pdf_document_links_has_document_links;
- iface->get_links_model = pdf_document_links_get_links_model;
-}
-
-
-static GdkPixbuf *
-make_thumbnail_for_size (PdfDocument *pdf_document,
- gint page,
- gint size,
- gboolean border)
-{
- PopplerPage *poppler_page;
- GdkPixbuf *pixbuf;
- int width, height;
- int x_offset, y_offset;
- double scale;
- gdouble unscaled_width, unscaled_height;
-
- poppler_page = poppler_document_get_page (pdf_document->document, page);
-
- g_return_val_if_fail (poppler_page != NULL, NULL);
-
- pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page, size, &width, &height);
- poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
- scale = width / unscaled_width;
-
- if (border) {
- pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL);
- x_offset = 1;
- y_offset = 1;
- } else {
- pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
- width, height);
- gdk_pixbuf_fill (pixbuf, 0xffffffff);
- x_offset = 0;
- y_offset = 0;
- }
-
- poppler_page_render_to_pixbuf (poppler_page, 0, 0,
- width, height,
- scale, pixbuf,
- x_offset, y_offset);
-
- return pixbuf;
-}
-
-static GdkPixbuf *
-pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
- gint page,
- gint size,
- gboolean border)
-{
- PdfDocument *pdf_document;
- PopplerPage *poppler_page;
- GdkPixbuf *pixbuf;
-
- pdf_document = PDF_DOCUMENT (document_thumbnails);
-
- poppler_page = poppler_document_get_page (pdf_document->document, page);
- g_return_val_if_fail (poppler_page != NULL, NULL);
-
- pixbuf = poppler_page_get_thumbnail (poppler_page);
- if (pixbuf != NULL) {
- /* The document provides its own thumbnails. */
- if (border) {
- GdkPixbuf *real_pixbuf;
-
- real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
- g_object_unref (pixbuf);
- pixbuf = real_pixbuf;
- }
- } else {
- /* There is no provided thumbnail. We need to make one. */
- pixbuf = make_thumbnail_for_size (pdf_document, page, size, border);
- }
- return pixbuf;
-}
-
-static void
-pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
- gint page,
- gint size,
- gint *width,
- gint *height)
-{
- PdfDocument *pdf_document;
- PopplerPage *poppler_page;
- gint has_thumb;
-
- pdf_document = PDF_DOCUMENT (document_thumbnails);
- poppler_page = poppler_document_get_page (pdf_document->document, page);
-
- g_return_if_fail (width != NULL);
- g_return_if_fail (height != NULL);
- g_return_if_fail (poppler_page != NULL);
-
- has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
-
- if (!has_thumb) {
- int page_width, page_height;
-
- get_size_from_page (poppler_page, 1.0, &page_width, &page_height);
-
- if (page_width > page_height) {
- *width = size;
- *height = (int) (size * page_height / page_width);
- } else {
- *width = (int) (size * page_width / page_height);
- *height = size;
- }
- }
-}
-
-static void
-pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
-{
- iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
- iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
-}
-
-PdfDocument *
-pdf_document_new (void)
-{
- return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
-}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff