X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=inline;f=shell%2Fev-sidebar-thumbnails.c;h=61d3cb838c2eb6e2673c0c64b427e386f8323fc4;hb=11368f9b50db86ce4f2ae0b549fb575a19af2a74;hp=a2f5d76ff4081ba96ce8dfd9365d69490b6ebc4c;hpb=5a7fb79a9faa64e7b877b16a220999945b54a128;p=evince.git diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c index a2f5d76f..61d3cb83 100644 --- a/shell/ev-sidebar-thumbnails.c +++ b/shell/ev-sidebar-thumbnails.c @@ -1,9 +1,11 @@ /* this file is part of evince, a gnome document viewer * * Copyright (C) 2004 Red Hat, Inc. + * Copyright (C) 2004, 2005 Anders Carlsson * - * Author: + * Authors: * Jonathan Blandford + * Anders Carlsson * * Evince is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by @@ -26,48 +28,337 @@ #include #include +#include +#include "ev-sidebar-page.h" #include "ev-sidebar-thumbnails.h" +#include "ev-document-thumbnails.h" +#include "ev-document-misc.h" +#include "ev-job-queue.h" +#include "ev-window.h" +#include "ev-utils.h" + +#define THUMBNAIL_WIDTH 100 + +/* Amount of time we devote to each iteration of the idle, in microseconds */ +#define IDLE_WORK_LENGTH 5000 struct _EvSidebarThumbnailsPrivate { - int dummy; + GtkWidget *tree_view; + GtkAdjustment *vadjustment; + GtkListStore *list_store; + EvDocument *document; + + gint n_pages, pages_done; }; -G_DEFINE_TYPE (EvSidebarThumbnails, ev_sidebar_thumbnails, GTK_TYPE_VBOX) +enum { + COLUMN_PAGE_STRING, + COLUMN_PIXBUF, + COLUMN_THUMBNAIL_SET, + COLUMN_JOB, + NUM_COLUMNS +}; + +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 (EvSidebarPageIface *iface); +static void ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page, + EvDocument *document); +static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page); + +G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails, + ev_sidebar_thumbnails, + GTK_TYPE_VBOX, + 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)) + (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate)); + + +static void +ev_sidebar_thumbnails_dispose (GObject *object) +{ + EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object); + + ev_sidebar_thumbnails_clear_model (sidebar_thumbnails); + + G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object); +} static void ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class) { GObjectClass *g_object_class; + GtkObjectClass *gtk_object_class; g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class); + gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class); + + g_object_class->dispose = ev_sidebar_thumbnails_dispose; 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 void +adjustment_changed_cb (GtkAdjustment *adjustment, + EvSidebarThumbnails *ev_sidebar_thumbnails) +{ + EvSidebarThumbnailsPrivate *priv; + GtkTreePath *path; + GtkTreeIter iter; + int page; + gboolean thumbnail_set; + + priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails); + gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view), + 1, 1, &path, + NULL, NULL, NULL); + if (!path) + return; + + page = gtk_tree_path_get_indices (path)[0]; + gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), + &iter, path); + gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter, + COLUMN_THUMBNAIL_SET, &thumbnail_set, + -1); } static void -ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails) +ev_sidebar_tree_selection_changed (GtkTreeSelection *selection, + EvSidebarThumbnails *ev_sidebar_thumbnails) { - GtkWidget *label; + EvSidebarThumbnailsPrivate *priv; + EvPageCache *page_cache; + GtkTreePath *path; + GtkTreeIter iter; + int page; - ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails); - - label = gtk_label_new ("Thumbnails!"); - gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), label, - TRUE, TRUE, 0); - gtk_widget_show (label); + priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails); + + 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); + + page_cache = ev_document_get_page_cache (priv->document); + ev_page_cache_set_current_page (page_cache, page); } GtkWidget * -ev_sidebar_thumbnails_new (void) +ev_sidebar_thumbnails_get_treeview (EvSidebarThumbnails *sidebar) { - GtkWidget *ev_sidebar_thumbnails; + return sidebar->priv->tree_view; +} - ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL); +static void +ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails) +{ + GtkWidget *swindow; + EvSidebarThumbnailsPrivate *priv; + GtkCellRenderer *renderer; + GtkTreeSelection *selection; - return ev_sidebar_thumbnails; + 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); + 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); + + g_object_unref (priv->list_store); + + swindow = gtk_scrolled_window_new (NULL, NULL); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), + GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC); + gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow), + GTK_SHADOW_IN); + priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (swindow)); + g_signal_connect (G_OBJECT (priv->vadjustment), "value-changed", + G_CALLBACK (adjustment_changed_cb), + ev_sidebar_thumbnails); + gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view); + gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), swindow, TRUE, TRUE, 0); + + gtk_widget_show_all (swindow); +} + +static void +page_changed_cb (EvPageCache *page_cache, + int page, + EvSidebarThumbnails *sidebar) +{ + GtkTreeView *tree_view = GTK_TREE_VIEW (sidebar->priv->tree_view); + GtkTreePath *path; + + path = gtk_tree_path_new_from_indices (page, -1); + 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); + gtk_tree_path_free (path); +} + +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"); + gtk_list_store_set (priv->list_store, + iter, + COLUMN_PIXBUF, job->thumbnail, + COLUMN_THUMBNAIL_SET, TRUE, + COLUMN_JOB, NULL, + -1); +} + +static void +ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page, + EvDocument *document) +{ + EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (sidebar_page); + GdkPixbuf *loading_icon; + gint i, n_pages; + GtkTreeIter iter; + gint width = THUMBNAIL_WIDTH; + gint height = THUMBNAIL_WIDTH; + EvPageCache *page_cache; + + EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv; + + g_return_if_fail (EV_IS_DOCUMENT_THUMBNAILS (document)); + + page_cache = ev_document_get_page_cache (document); + n_pages = ev_page_cache_get_n_pages (page_cache); + + priv->document = document; + priv->n_pages = n_pages; + + /* We get the dimensions of the first doc so that we can make a blank + * icon. */ + ev_document_doc_mutex_lock (); + ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (priv->document), + 0, THUMBNAIL_WIDTH, &width, &height); + ev_document_doc_mutex_unlock (); + + loading_icon = ev_document_misc_get_thumbnail_frame (width, height, NULL); + + ev_sidebar_thumbnails_clear_model (sidebar_thumbnails); + for (i = 0; i < n_pages; i++) { + EvJob *job; + gchar *page_label; + gchar *page_string; + + job = ev_job_thumbnail_new (priv->document, i, THUMBNAIL_WIDTH); + page_label = ev_page_cache_get_page_label (page_cache, i); + page_string = g_markup_printf_escaped ("%s", page_label); + + 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, + COLUMN_JOB, job, + -1); + g_free (page_label); + g_free (page_string); + ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW); + 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); + } + + g_object_unref (loading_icon); + + /* Connect to the signal and trigger a fake callback */ + g_signal_connect (page_cache, "page-changed", G_CALLBACK (page_changed_cb), sidebar_thumbnails); + page_changed_cb (page_cache, ev_page_cache_get_current_page (page_cache), sidebar_thumbnails); + +} + +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_queue_remove_job (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) && + (ev_document_get_n_pages (document) > 1)); +} + +static const gchar* +ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page) +{ + return _("Thumbnails"); +} + +static void +ev_sidebar_thumbnails_page_iface_init (EvSidebarPageIface *iface) +{ + iface->support_document = ev_sidebar_thumbnails_support_document; + iface->set_document = ev_sidebar_thumbnails_set_document; + iface->get_label = ev_sidebar_thumbnails_get_label; +} +