/* this file is part of atril, a mate document viewer * * Copyright (C) 2004 Red Hat, Inc. * Copyright (C) 2004, 2005 Anders Carlsson <andersca@gnome.org> * * Authors: * Jonathan Blandford <jrb@alum.mit.edu> * Anders Carlsson <andersca@gnome.org> * * Atril 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. * * Atril 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <string.h> #include <glib/gi18n.h> #include <gtk/gtk.h> #include "ev-document-misc.h" #include "ev-document-thumbnails.h" #include "ev-job-scheduler.h" #include "ev-sidebar-page.h" #include "ev-sidebar-thumbnails.h" #include "ev-utils.h" #include "ev-window.h" #define THUMBNAIL_WIDTH 100 /* The IconView doesn't scale nearly as well as the TreeView, so we arbitrarily * limit its use */ #define MAX_ICON_VIEW_PAGE_COUNT 1500 typedef struct _EvThumbsSize { gint width; gint height; } EvThumbsSize; typedef struct _EvThumbsSizeCache { gboolean uniform; gint uniform_width; gint uniform_height; EvThumbsSize *sizes; } EvThumbsSizeCache; struct _EvSidebarThumbnailsPrivate { GtkWidget *swindow; GtkWidget *icon_view; GtkWidget *tree_view; GtkAdjustment *vadjustment; GtkListStore *list_store; GHashTable *loading_icons; EvDocument *document; EvDocumentModel *model; EvThumbsSizeCache *size_cache; gint n_pages, pages_done; int rotation; gboolean inverted_colors; /* Visible pages */ gint start_page, end_page; }; enum { COLUMN_PAGE_STRING, COLUMN_PIXBUF, COLUMN_THUMBNAIL_SET, COLUMN_JOB, NUM_COLUMNS }; enum { PROP_0, PROP_WIDGET, }; static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar); static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page, EvDocument *document); static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageInterface *iface); static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page); static void thumbnail_job_completed_callback (EvJobThumbnail *job, EvSidebarThumbnails *sidebar_thumbnails); static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails); G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails, ev_sidebar_thumbnails, GTK_TYPE_BOX, 0, G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE, ev_sidebar_thumbnails_page_iface_init)) #define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \ (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate)); /* Thumbnails dimensions cache */ #define EV_THUMBNAILS_SIZE_CACHE_KEY "ev-thumbnails-size-cache" static EvThumbsSizeCache * ev_thumbnails_size_cache_new (EvDocument *document) { EvThumbsSizeCache *cache; EvRenderContext *rc = NULL; gint i, n_pages; EvThumbsSize *thumb_size; cache = g_new0 (EvThumbsSizeCache, 1); n_pages = ev_document_get_n_pages (document); /* Assume all pages are the same size until proven otherwise */ cache->uniform = TRUE; for (i = 0; i < n_pages; i++) { EvPage *page; gdouble page_width, page_height; gint thumb_width = 0; gint thumb_height = 0; page = ev_document_get_page (document, i); if (document->iswebdocument == FALSE ) { ev_document_get_page_size (document, i, &page_width, &page_height); } else { /* Hardcoding these values to a large enough dimesnsion so as to achieve max content without loss in visibility*/ page_width = 800; page_height = 1080; } if (!rc) { rc = ev_render_context_new (page, 0, (gdouble)THUMBNAIL_WIDTH / page_width); } else { ev_render_context_set_page (rc, page); ev_render_context_set_scale (rc, (gdouble)THUMBNAIL_WIDTH / page_width); } ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (document), rc, &thumb_width, &thumb_height); if (i == 0) { cache->uniform_width = thumb_width; cache->uniform_height = thumb_height; } else if (cache->uniform && (cache->uniform_width != thumb_width || cache->uniform_height != thumb_height)) { /* It's a different thumbnail size. Backfill the array. */ int j; cache->sizes = g_new0 (EvThumbsSize, n_pages); for (j = 0; j < i; j++) { thumb_size = &(cache->sizes[j]); thumb_size->width = cache->uniform_width; thumb_size->height = cache->uniform_height; } cache->uniform = FALSE; } if (! cache->uniform) { thumb_size = &(cache->sizes[i]); thumb_size->width = thumb_width; thumb_size->height = thumb_height; } g_object_unref (page); } if (rc) { g_object_unref (rc); } return cache; } static void ev_thumbnails_size_cache_get_size (EvThumbsSizeCache *cache, gint page, gint rotation, gint *width, gint *height) { gint w, h; if (cache->uniform) { w = cache->uniform_width; h = cache->uniform_height; } else { EvThumbsSize *thumb_size; thumb_size = &(cache->sizes[page]); w = thumb_size->width; h = thumb_size->height; } if (rotation == 0 || rotation == 180) { if (width) *width = w; if (height) *height = h; } else { if (width) *width = h; if (height) *height = w; } } static void ev_thumbnails_size_cache_free (EvThumbsSizeCache *cache) { if (cache->sizes) { g_free (cache->sizes); cache->sizes = NULL; } g_free (cache); } static EvThumbsSizeCache * ev_thumbnails_size_cache_get (EvDocument *document) { EvThumbsSizeCache *cache; cache = g_object_get_data (G_OBJECT (document), EV_THUMBNAILS_SIZE_CACHE_KEY); if (!cache) { cache = ev_thumbnails_size_cache_new (document); g_object_set_data_full (G_OBJECT (document), EV_THUMBNAILS_SIZE_CACHE_KEY, cache, (GDestroyNotify)ev_thumbnails_size_cache_free); } return cache; } static void ev_sidebar_thumbnails_dispose (GObject *object) { EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object); if (sidebar_thumbnails->priv->loading_icons) { g_hash_table_destroy (sidebar_thumbnails->priv->loading_icons); sidebar_thumbnails->priv->loading_icons = NULL; } if (sidebar_thumbnails->priv->list_store) { ev_sidebar_thumbnails_clear_model (sidebar_thumbnails); g_object_unref (sidebar_thumbnails->priv->list_store); sidebar_thumbnails->priv->list_store = NULL; } G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object); } static void ev_sidebar_thumbnails_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (object); switch (prop_id) { case PROP_WIDGET: if (sidebar->priv->tree_view) g_value_set_object (value, sidebar->priv->tree_view); else g_value_set_object (value, sidebar->priv->icon_view); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void ev_sidebar_thumbnails_map (GtkWidget *widget) { EvSidebarThumbnails *sidebar; sidebar = EV_SIDEBAR_THUMBNAILS (widget); GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget); adjustment_changed_cb (sidebar); } static void ev_sidebar_fullscreen_cb (EvSidebarThumbnails *sidebar) { /* After activating or deactivating fullscreen mode, the sidebar * window is automatically moved to its start, while scroll bar * stays in its original position. * * The sidebar window move is unwanted and unsolicited, and it's * most probably caused by GtkIconView or GtkScrolledWindow bug. * * Workaround this by having the sidebar sync its window with the * current scroll position after a fullscreen operation, do that by * just emitting a "value-changed" on the current scroll adjustment. * Fixes https://bugzilla.gnome.org/show_bug.cgi?id=783404 */ g_signal_emit_by_name (sidebar->priv->vadjustment, "value-changed"); } static void ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class) { GObjectClass *g_object_class; GtkWidgetClass *widget_class; g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class); widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class); g_object_class->dispose = ev_sidebar_thumbnails_dispose; g_object_class->get_property = ev_sidebar_thumbnails_get_property; widget_class->map = ev_sidebar_thumbnails_map; g_object_class_override_property (g_object_class, PROP_WIDGET, "main-widget"); g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate)); } GtkWidget * ev_sidebar_thumbnails_new (void) { GtkWidget *ev_sidebar_thumbnails; ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL); return ev_sidebar_thumbnails; } static GdkPixbuf * ev_sidebar_thumbnails_get_loading_icon (EvSidebarThumbnails *sidebar_thumbnails, gint width, gint height) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GdkPixbuf *icon; gchar *key; key = g_strdup_printf ("%dx%d", width, height); icon = g_hash_table_lookup (priv->loading_icons, key); if (!icon) { gboolean inverted_colors; inverted_colors = ev_document_model_get_inverted_colors (priv->model); icon = ev_document_misc_get_loading_thumbnail (width, height, inverted_colors); g_hash_table_insert (priv->loading_icons, key, icon); } else { g_free (key); } return icon; } static void cancel_running_jobs (EvSidebarThumbnails *sidebar_thumbnails, gint start_page, gint end_page) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GtkTreePath *path; GtkTreeIter iter; gboolean result; g_assert (start_page <= end_page); path = gtk_tree_path_new_from_indices (start_page, -1); for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path); result && start_page <= end_page; result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), start_page ++) { EvJobThumbnail *job; gboolean thumbnail_set; gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter, COLUMN_JOB, &job, COLUMN_THUMBNAIL_SET, &thumbnail_set, -1); if (thumbnail_set) { g_assert (job == NULL); continue; } if (job) { g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, sidebar_thumbnails); ev_job_cancel (EV_JOB (job)); g_object_unref (job); } gtk_list_store_set (priv->list_store, &iter, COLUMN_JOB, NULL, COLUMN_THUMBNAIL_SET, FALSE, -1); } gtk_tree_path_free (path); } static gdouble get_scale_for_page (EvSidebarThumbnails *sidebar_thumbnails, gint page) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; gdouble width; if (priv->document->iswebdocument == TRUE ) { /* Hardcoded for epub documents*/ width = 800; } else { ev_document_get_page_size (priv->document, page, &width, NULL); } return (gdouble)THUMBNAIL_WIDTH / width; } static void add_range (EvSidebarThumbnails *sidebar_thumbnails, gint start_page, gint end_page) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GtkTreePath *path; GtkTreeIter iter; gboolean result; gint page = start_page; g_assert (start_page <= end_page); path = gtk_tree_path_new_from_indices (start_page, -1); for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path); result && page <= end_page; result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), page ++) { EvJob *job; gboolean thumbnail_set; gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter, COLUMN_JOB, &job, COLUMN_THUMBNAIL_SET, &thumbnail_set, -1); if (job == NULL && !thumbnail_set) { job = ev_job_thumbnail_new (priv->document, page, priv->rotation, get_scale_for_page (sidebar_thumbnails, page)); if (priv->document->iswebdocument) { ev_job_set_run_mode(job, EV_JOB_RUN_MAIN_LOOP); } g_object_set_data_full (G_OBJECT (job), "tree_iter", gtk_tree_iter_copy (&iter), (GDestroyNotify) gtk_tree_iter_free); g_signal_connect (job, "finished", G_CALLBACK (thumbnail_job_completed_callback), sidebar_thumbnails); gtk_list_store_set (priv->list_store, &iter, COLUMN_JOB, job, -1); ev_job_scheduler_push_job (EV_JOB (job), EV_JOB_PRIORITY_HIGH); /* The queue and the list own a ref to the job now */ g_object_unref (job); } else if (job) { g_object_unref (job); } } gtk_tree_path_free (path); } /* This modifies start */ static void update_visible_range (EvSidebarThumbnails *sidebar_thumbnails, gint start_page, gint end_page) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; int old_start_page, old_end_page; int n_pages_in_visible_range; /* Preload before and after current visible scrolling range, the same amount of * thumbs in it, to help prevent thumbnail creation happening in the user's sight. * https://bugzilla.gnome.org/show_bug.cgi?id=342110#c15 */ n_pages_in_visible_range = (end_page - start_page) + 1; start_page = MAX (0, start_page - n_pages_in_visible_range); end_page = MIN (priv->n_pages - 1, end_page + n_pages_in_visible_range); old_start_page = priv->start_page; old_end_page = priv->end_page; if (start_page == old_start_page && end_page == old_end_page) return; /* Clear the areas we no longer display */ if (old_start_page >= 0 && old_start_page < start_page) cancel_running_jobs (sidebar_thumbnails, old_start_page, MIN (start_page - 1, old_end_page)); if (old_end_page > 0 && old_end_page > end_page) cancel_running_jobs (sidebar_thumbnails, MAX (end_page + 1, old_start_page), old_end_page); add_range (sidebar_thumbnails, start_page, end_page); priv->start_page = start_page; priv->end_page = end_page; } static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GtkTreePath *path = NULL; GtkTreePath *path2 = NULL; gdouble page_size; gdouble value; gint wy1; gint wy2; /* Widget is not currently visible */ if (!gtk_widget_get_mapped (GTK_WIDGET (sidebar_thumbnails))) return; page_size = gtk_adjustment_get_page_size (priv->vadjustment); if (page_size == 0) return; value = gtk_adjustment_get_value (priv->vadjustment); if (priv->tree_view) { if (! gtk_widget_get_realized (priv->tree_view)) return; gtk_tree_view_convert_tree_to_bin_window_coords (GTK_TREE_VIEW (priv->tree_view), 0, (int) value, NULL, &wy1); gtk_tree_view_convert_tree_to_bin_window_coords (GTK_TREE_VIEW (priv->tree_view), 0, (int) (value + page_size), NULL, &wy2); gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view), 1, wy1 + 1, &path, NULL, NULL, NULL); gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view), 1, wy2 -1, &path2, NULL, NULL, NULL); } else if (priv->icon_view) { if (! gtk_widget_get_realized (priv->icon_view)) return; if (! gtk_icon_view_get_visible_range (GTK_ICON_VIEW (priv->icon_view), &path, &path2)) return; } else { return; } if (path && path2) { update_visible_range (sidebar_thumbnails, gtk_tree_path_get_indices (path)[0], gtk_tree_path_get_indices (path2)[0]); } gtk_tree_path_free (path); gtk_tree_path_free (path2); } static void ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GtkTreeIter iter; int i; gint prev_width = -1; gint prev_height = -1; for (i = 0; i < sidebar_thumbnails->priv->n_pages; i++) { gchar *page_label; gchar *page_string; GdkPixbuf *loading_icon = NULL; gint width, height; page_label = ev_document_get_page_label (priv->document, i); page_string = g_markup_printf_escaped ("<i>%s</i>", page_label); ev_thumbnails_size_cache_get_size (sidebar_thumbnails->priv->size_cache, i, sidebar_thumbnails->priv->rotation, &width, &height); if (!loading_icon || (width != prev_width && height != prev_height)) { loading_icon = ev_sidebar_thumbnails_get_loading_icon (sidebar_thumbnails, width, height); } prev_width = width; prev_height = height; gtk_list_store_append (priv->list_store, &iter); gtk_list_store_set (priv->list_store, &iter, COLUMN_PAGE_STRING, page_string, COLUMN_PIXBUF, loading_icon, COLUMN_THUMBNAIL_SET, FALSE, -1); g_free (page_label); g_free (page_string); } } static void ev_sidebar_tree_selection_changed (GtkTreeSelection *selection, EvSidebarThumbnails *ev_sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv; GtkTreePath *path; GtkTreeIter iter; int page; if (!gtk_tree_selection_get_selected (selection, NULL, &iter)) return; path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->list_store), &iter); page = gtk_tree_path_get_indices (path)[0]; gtk_tree_path_free (path); ev_document_model_set_page (priv->model, page); } static void ev_sidebar_icon_selection_changed (GtkIconView *icon_view, EvSidebarThumbnails *ev_sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv; GtkTreePath *path; GList *selected; int page; selected = gtk_icon_view_get_selected_items (icon_view); if (selected == NULL) return; /* We don't handle or expect multiple selection. */ g_assert (selected->next == NULL); path = selected->data; page = gtk_tree_path_get_indices (path)[0]; gtk_tree_path_free (path); g_list_free (selected); ev_document_model_set_page (priv->model, page); } static void ev_sidebar_init_tree_view (EvSidebarThumbnails *ev_sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv; GtkTreeSelection *selection; GtkCellRenderer *renderer; gtk_orientable_set_orientation (GTK_ORIENTABLE (ev_sidebar_thumbnails), GTK_ORIENTATION_VERTICAL); priv = ev_sidebar_thumbnails->priv; priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store)); selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)); g_signal_connect (selection, "changed", G_CALLBACK (ev_sidebar_tree_selection_changed), ev_sidebar_thumbnails); gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE); renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF, "xpad", 2, "ypad", 2, NULL); gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1, NULL, renderer, "pixbuf", 1, NULL); gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1, NULL, gtk_cell_renderer_text_new (), "markup", 0, NULL); gtk_container_add (GTK_CONTAINER (priv->swindow), priv->tree_view); gtk_widget_show (priv->tree_view); } static void ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv; GtkCellRenderer *renderer; priv = ev_sidebar_thumbnails->priv; priv->icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (priv->list_store)); renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF, "xalign", 0.5, "yalign", 1.0, NULL); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->icon_view), renderer, FALSE); gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (priv->icon_view), renderer, "pixbuf", 1, NULL); renderer = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, "alignment", PANGO_ALIGN_CENTER, "wrap-mode", PANGO_WRAP_WORD_CHAR, "xalign", 0.5, "yalign", 0.0, "width", THUMBNAIL_WIDTH, "wrap-width", THUMBNAIL_WIDTH, NULL); gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (priv->icon_view), renderer, FALSE); gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (priv->icon_view), renderer, "markup", 0, NULL); g_signal_connect (priv->icon_view, "selection-changed", G_CALLBACK (ev_sidebar_icon_selection_changed), ev_sidebar_thumbnails); gtk_container_add (GTK_CONTAINER (priv->swindow), priv->icon_view); gtk_widget_show (priv->icon_view); } static gboolean ev_sidebar_thumbnails_use_icon_view (EvSidebarThumbnails *sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; return (ev_document_get_n_pages (priv->document) <= MAX_ICON_VIEW_PAGE_COUNT); } static void ev_sidebar_thumbnails_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { guint signal_id; signal_id = GPOINTER_TO_UINT (data); /* PREVENT GtkIconView "row-changed" handler to be reached, as it will * perform a full invalidate and relayout of all items, See bug: * https://bugzilla.gnome.org/show_bug.cgi?id=691448#c9 */ g_signal_stop_emission (model, signal_id, 0); } static void ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv; guint signal_id; priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails); priv->list_store = gtk_list_store_new (NUM_COLUMNS, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_BOOLEAN, EV_TYPE_JOB_THUMBNAIL); signal_id = g_signal_lookup ("row-changed", GTK_TYPE_TREE_MODEL); g_signal_connect (GTK_TREE_MODEL (priv->list_store), "row-changed", G_CALLBACK (ev_sidebar_thumbnails_row_changed), GUINT_TO_POINTER (signal_id)); priv->swindow = gtk_scrolled_window_new (NULL, NULL); /* We actually don't want GTK_POLICY_AUTOMATIC for horizontal scrollbar here * it's just a workaround for bug #449462 (GTK2 only) */ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->swindow), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->swindow), GTK_SHADOW_IN); priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->swindow)); g_signal_connect_data (priv->vadjustment, "value-changed", G_CALLBACK (adjustment_changed_cb), ev_sidebar_thumbnails, NULL, G_CONNECT_SWAPPED | G_CONNECT_AFTER); g_signal_connect_swapped (priv->swindow, "size-allocate", G_CALLBACK (adjustment_changed_cb), ev_sidebar_thumbnails); gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), priv->swindow, TRUE, TRUE, 0); /* Put it all together */ gtk_widget_show_all (priv->swindow); } static void ev_sidebar_thumbnails_set_current_page (EvSidebarThumbnails *sidebar, gint page) { GtkTreeView *tree_view; GtkTreePath *path; path = gtk_tree_path_new_from_indices (page, -1); if (sidebar->priv->tree_view) { tree_view = GTK_TREE_VIEW (sidebar->priv->tree_view); gtk_tree_view_set_cursor (tree_view, path, NULL, FALSE); gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0); } else if (sidebar->priv->icon_view) { g_signal_handlers_block_by_func (sidebar->priv->icon_view, G_CALLBACK (ev_sidebar_icon_selection_changed), sidebar); gtk_icon_view_select_path (GTK_ICON_VIEW (sidebar->priv->icon_view), path); g_signal_handlers_unblock_by_func (sidebar->priv->icon_view, G_CALLBACK (ev_sidebar_icon_selection_changed), sidebar); gtk_icon_view_scroll_to_path (GTK_ICON_VIEW (sidebar->priv->icon_view), path, FALSE, 0.0, 0.0); } gtk_tree_path_free (path); } static void page_changed_cb (EvSidebarThumbnails *sidebar, gint old_page, gint new_page) { ev_sidebar_thumbnails_set_current_page (sidebar, new_page); } static gboolean refresh (EvSidebarThumbnails *sidebar_thumbnails) { adjustment_changed_cb (sidebar_thumbnails); return FALSE; } static void ev_sidebar_thumbnails_reload (EvSidebarThumbnails *sidebar_thumbnails) { EvDocumentModel *model; if (sidebar_thumbnails->priv->loading_icons) g_hash_table_remove_all (sidebar_thumbnails->priv->loading_icons); if (sidebar_thumbnails->priv->document == NULL || sidebar_thumbnails->priv->n_pages <= 0) return; model = sidebar_thumbnails->priv->model; ev_sidebar_thumbnails_clear_model (sidebar_thumbnails); ev_sidebar_thumbnails_fill_model (sidebar_thumbnails); /* Trigger a redraw */ sidebar_thumbnails->priv->start_page = -1; sidebar_thumbnails->priv->end_page = -1; ev_sidebar_thumbnails_set_current_page (sidebar_thumbnails, ev_document_model_get_page (model)); g_idle_add ((GSourceFunc)refresh, sidebar_thumbnails); } static void ev_sidebar_thumbnails_rotation_changed_cb (EvDocumentModel *model, GParamSpec *pspec, EvSidebarThumbnails *sidebar_thumbnails) { gint rotation = ev_document_model_get_rotation (model); sidebar_thumbnails->priv->rotation = rotation; ev_sidebar_thumbnails_reload (sidebar_thumbnails); } static void ev_sidebar_thumbnails_inverted_colors_changed_cb (EvDocumentModel *model, GParamSpec *pspec, EvSidebarThumbnails *sidebar_thumbnails) { gboolean inverted_colors = ev_document_model_get_inverted_colors (model); sidebar_thumbnails->priv->inverted_colors = inverted_colors; ev_sidebar_thumbnails_reload (sidebar_thumbnails); } static void thumbnail_job_completed_callback (EvJobThumbnail *job, EvSidebarThumbnails *sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; GtkTreeIter *iter; iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter"); if (priv->inverted_colors && priv->document->iswebdocument == FALSE) ev_document_misc_invert_pixbuf (job->thumbnail); gtk_list_store_set (priv->list_store, iter, COLUMN_PIXBUF, job->thumbnail, COLUMN_THUMBNAIL_SET, TRUE, COLUMN_JOB, NULL, -1); gtk_widget_queue_draw (priv->icon_view); } static void ev_sidebar_thumbnails_document_changed_cb (EvDocumentModel *model, GParamSpec *pspec, EvSidebarThumbnails *sidebar_thumbnails) { EvDocument *document = ev_document_model_get_document (model); EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; if (!EV_IS_DOCUMENT_THUMBNAILS (document) || ev_document_get_n_pages (document) <= 0 || !ev_document_check_dimensions (document)) { return; } priv->size_cache = ev_thumbnails_size_cache_get (document); priv->document = document; priv->n_pages = ev_document_get_n_pages (document); priv->rotation = ev_document_model_get_rotation (model); priv->inverted_colors = ev_document_model_get_inverted_colors (model); priv->loading_icons = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify)g_free, (GDestroyNotify)g_object_unref); ev_sidebar_thumbnails_clear_model (sidebar_thumbnails); ev_sidebar_thumbnails_fill_model (sidebar_thumbnails); /* Create the view widget, and remove the old one, if needed */ if (ev_sidebar_thumbnails_use_icon_view (sidebar_thumbnails)) { if (priv->tree_view) { gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->tree_view); priv->tree_view = NULL; } if (! priv->icon_view) { ev_sidebar_init_icon_view (sidebar_thumbnails); g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget"); } else { gtk_widget_queue_resize (priv->icon_view); } } else { if (priv->icon_view) { gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->icon_view); priv->icon_view = NULL; } if (! priv->tree_view) { ev_sidebar_init_tree_view (sidebar_thumbnails); g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget"); } } /* Connect to the signal and trigger a fake callback */ g_signal_connect_swapped (priv->model, "page-changed", G_CALLBACK (page_changed_cb), sidebar_thumbnails); g_signal_connect (priv->model, "notify::rotation", G_CALLBACK (ev_sidebar_thumbnails_rotation_changed_cb), sidebar_thumbnails); g_signal_connect (priv->model, "notify::inverted-colors", G_CALLBACK (ev_sidebar_thumbnails_inverted_colors_changed_cb), sidebar_thumbnails); g_signal_connect_swapped (priv->model, "notify::fullscreen", G_CALLBACK (ev_sidebar_fullscreen_cb), sidebar_thumbnails); sidebar_thumbnails->priv->start_page = -1; sidebar_thumbnails->priv->end_page = -1; ev_sidebar_thumbnails_set_current_page (sidebar_thumbnails, ev_document_model_get_page (model)); adjustment_changed_cb (sidebar_thumbnails); } static void ev_sidebar_thumbnails_set_model (EvSidebarPage *sidebar_page, EvDocumentModel *model) { EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (sidebar_page); EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; if (priv->model == model) return; priv->model = model; g_signal_connect (model, "notify::document", G_CALLBACK (ev_sidebar_thumbnails_document_changed_cb), sidebar_page); } static gboolean ev_sidebar_thumbnails_clear_job (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { EvJob *job; gtk_tree_model_get (model, iter, COLUMN_JOB, &job, -1); if (job != NULL) { ev_job_cancel (job); g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, data); g_object_unref (job); } return FALSE; } static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar_thumbnails) { EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; gtk_tree_model_foreach (GTK_TREE_MODEL (priv->list_store), ev_sidebar_thumbnails_clear_job, sidebar_thumbnails); gtk_list_store_clear (priv->list_store); } static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page, EvDocument *document) { return (EV_IS_DOCUMENT_THUMBNAILS (document)); } static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page) { return _("Thumbnails"); } static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageInterface *iface) { iface->support_document = ev_sidebar_thumbnails_support_document; iface->set_model = ev_sidebar_thumbnails_set_model; iface->get_label = ev_sidebar_thumbnails_get_label; }