mirror of
https://gitlab.gnome.org/GNOME/evince
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19babb9114
Instead of directly TRUE and FALSE, to improve readability. These are used in GSourceFunc functions, and represent no change in behavior!
1376 lines
42 KiB
C
1376 lines
42 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
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/* this file is part of evince, a gnome document viewer
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*
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* Copyright (C) 2004 Red Hat, Inc.
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* Copyright (C) 2004, 2005 Anders Carlsson <andersca@gnome.org>
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*
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* Authors:
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* Jonathan Blandford <jrb@alum.mit.edu>
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* Anders Carlsson <andersca@gnome.org>
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*
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* Evince is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Evince is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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#include <cairo-gobject.h>
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#include "ev-document-misc.h"
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#include "ev-job-scheduler.h"
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#include "ev-sidebar.h"
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#include "ev-sidebar-page.h"
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#include "ev-sidebar-thumbnails.h"
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#include "ev-utils.h"
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#include "ev-window.h"
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#define THUMBNAIL_WIDTH 100
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typedef struct _EvThumbsSize
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{
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gint width;
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gint height;
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} EvThumbsSize;
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typedef struct _EvThumbsSizeCache {
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gboolean uniform;
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gint uniform_width;
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gint uniform_height;
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EvThumbsSize *sizes;
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} EvThumbsSizeCache;
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struct _EvSidebarThumbnailsPrivate {
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GtkWidget *swindow;
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GtkWidget *icon_view;
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GtkAdjustment *vadjustment;
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GtkListStore *list_store;
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GHashTable *loading_icons;
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EvDocument *document;
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EvDocumentModel *model;
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EvThumbsSizeCache *size_cache;
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gint width;
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gint n_pages, pages_done;
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int rotation;
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gboolean inverted_colors;
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gboolean blank_first_dual_mode; /* flag for when we're using a blank first thumbnail
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* for dual mode with !odd_left preference. Issue #30 */
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/* Visible pages */
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gint start_page, end_page;
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};
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enum {
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COLUMN_PAGE_STRING,
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COLUMN_SURFACE,
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COLUMN_THUMBNAIL_SET,
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COLUMN_JOB,
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NUM_COLUMNS
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};
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enum {
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PROP_0,
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PROP_WIDGET,
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};
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static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar);
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static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
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EvDocument *document);
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static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageInterface *iface);
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static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page);
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static void ev_sidebar_thumbnails_set_current_page (EvSidebarThumbnails *sidebar,
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gint page);
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static void thumbnail_job_completed_callback (EvJobThumbnail *job,
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EvSidebarThumbnails *sidebar_thumbnails);
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static void ev_sidebar_thumbnails_reload (EvSidebarThumbnails *sidebar_thumbnails);
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static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails);
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static void check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails);
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static void check_toggle_blank_first_dual_mode_when_resizing (EvSidebarThumbnails *sidebar_thumbnails);
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G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
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ev_sidebar_thumbnails,
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GTK_TYPE_BOX,
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0,
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G_ADD_PRIVATE (EvSidebarThumbnails)
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G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
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ev_sidebar_thumbnails_page_iface_init))
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/* Thumbnails dimensions cache */
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#define EV_THUMBNAILS_SIZE_CACHE_KEY "ev-thumbnails-size-cache"
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static void
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get_thumbnail_size_for_page (EvDocument *document,
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guint page,
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gint *width,
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gint *height)
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{
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gdouble scale;
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gdouble w, h;
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ev_document_get_page_size (document, page, &w, &h);
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scale = (gdouble)THUMBNAIL_WIDTH / w;
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*width = MAX ((gint)(w * scale + 0.5), 1);
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*height = MAX ((gint)(h * scale + 0.5), 1);
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}
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static EvThumbsSizeCache *
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ev_thumbnails_size_cache_new (EvDocument *document)
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{
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EvThumbsSizeCache *cache;
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gint i, n_pages;
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EvThumbsSize *thumb_size;
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cache = g_new0 (EvThumbsSizeCache, 1);
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if (ev_document_is_page_size_uniform (document)) {
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cache->uniform = TRUE;
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get_thumbnail_size_for_page (document, 0,
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&cache->uniform_width,
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&cache->uniform_height);
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return cache;
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}
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n_pages = ev_document_get_n_pages (document);
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cache->sizes = g_new0 (EvThumbsSize, n_pages);
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for (i = 0; i < n_pages; i++) {
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thumb_size = &(cache->sizes[i]);
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get_thumbnail_size_for_page (document, i,
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&thumb_size->width,
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&thumb_size->height);
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}
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return cache;
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}
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static void
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ev_thumbnails_size_cache_get_size (EvThumbsSizeCache *cache,
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gint page,
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gint rotation,
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gint *width,
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gint *height)
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{
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gint w, h;
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if (cache->uniform) {
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w = cache->uniform_width;
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h = cache->uniform_height;
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} else {
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EvThumbsSize *thumb_size;
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thumb_size = &(cache->sizes[page]);
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w = thumb_size->width;
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h = thumb_size->height;
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}
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if (rotation == 0 || rotation == 180) {
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if (width) *width = w;
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if (height) *height = h;
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} else {
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if (width) *width = h;
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if (height) *height = w;
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}
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}
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static void
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ev_thumbnails_size_cache_free (EvThumbsSizeCache *cache)
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{
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g_clear_pointer (&cache->sizes, g_free);
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g_free (cache);
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}
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static EvThumbsSizeCache *
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ev_thumbnails_size_cache_get (EvDocument *document)
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{
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EvThumbsSizeCache *cache;
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cache = g_object_get_data (G_OBJECT (document), EV_THUMBNAILS_SIZE_CACHE_KEY);
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if (!cache) {
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cache = ev_thumbnails_size_cache_new (document);
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g_object_set_data_full (G_OBJECT (document),
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EV_THUMBNAILS_SIZE_CACHE_KEY,
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cache,
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(GDestroyNotify)ev_thumbnails_size_cache_free);
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}
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return cache;
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}
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static gboolean
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ev_sidebar_thumbnails_page_is_in_visible_range (EvSidebarThumbnails *sidebar,
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guint page)
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{
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GtkTreePath *path;
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GtkTreePath *start, *end;
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gboolean retval;
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GList *selection;
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selection = gtk_icon_view_get_selected_items (GTK_ICON_VIEW (sidebar->priv->icon_view));
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if (!selection)
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return FALSE;
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path = (GtkTreePath *)selection->data;
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/* We don't handle or expect multiple selection. */
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g_assert (selection->next == NULL);
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g_list_free (selection);
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if (!gtk_icon_view_get_visible_range (GTK_ICON_VIEW (sidebar->priv->icon_view), &start, &end)) {
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gtk_tree_path_free (path);
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return FALSE;
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}
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retval = gtk_tree_path_compare (path, start) >= 0 && gtk_tree_path_compare (path, end) <= 0;
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gtk_tree_path_free (path);
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gtk_tree_path_free (start);
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gtk_tree_path_free (end);
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return retval;
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}
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static void
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ev_sidebar_thumbnails_dispose (GObject *object)
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{
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EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
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g_clear_pointer (&sidebar_thumbnails->priv->loading_icons,
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g_hash_table_destroy);
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if (sidebar_thumbnails->priv->list_store) {
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ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
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g_clear_object (&sidebar_thumbnails->priv->list_store);
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}
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G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
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}
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static void
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ev_sidebar_thumbnails_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (object);
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switch (prop_id) {
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case PROP_WIDGET:
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g_value_set_object (value, sidebar->priv->icon_view);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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ev_sidebar_thumbnails_map (GtkWidget *widget)
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{
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EvSidebarThumbnails *sidebar;
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sidebar = EV_SIDEBAR_THUMBNAILS (widget);
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GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget);
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adjustment_changed_cb (sidebar);
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}
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static void
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ev_sidebar_fullscreen_cb (EvSidebarThumbnails *sidebar)
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{
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/* After activating or deactivating fullscreen mode, the sidebar
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* window is automatically moved to its start, while scroll bar
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* stays in its original position.
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*
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* The sidebar window move is unwanted and unsolicited, and it's
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* most probably caused by GtkIconView or GtkScrolledWindow bug.
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*
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* Workaround this by having the sidebar sync its window with the
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* current scroll position after a fullscreen operation, do that by
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* just emitting a "value-changed" on the current scroll adjustment.
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* Fixes https://bugzilla.gnome.org/show_bug.cgi?id=783404 */
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g_signal_emit_by_name (sidebar->priv->vadjustment, "value-changed");
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}
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static void
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ev_sidebar_check_reset_current_page (EvSidebarThumbnails *sidebar)
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{
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guint page;
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if (!sidebar->priv->model)
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return;
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page = ev_document_model_get_page (sidebar->priv->model);
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if (!ev_sidebar_thumbnails_page_is_in_visible_range (sidebar, page))
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ev_sidebar_thumbnails_set_current_page (sidebar, page);
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}
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static void
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ev_sidebar_thumbnails_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (widget);
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GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->size_allocate (widget, allocation);
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if (allocation->width != sidebar->priv->width) {
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sidebar->priv->width = allocation->width;
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/* Might have a new number of columns, reset current page */
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ev_sidebar_check_reset_current_page (sidebar);
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}
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}
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static void
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ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
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{
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GObjectClass *g_object_class;
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GtkWidgetClass *widget_class;
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g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
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widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
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g_object_class->dispose = ev_sidebar_thumbnails_dispose;
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g_object_class->get_property = ev_sidebar_thumbnails_get_property;
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widget_class->map = ev_sidebar_thumbnails_map;
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widget_class->size_allocate = ev_sidebar_thumbnails_size_allocate;
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gtk_widget_class_set_css_name (widget_class, "evsidebarthumbnails");
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g_object_class_override_property (g_object_class,
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PROP_WIDGET,
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"main-widget");
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}
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GtkWidget *
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ev_sidebar_thumbnails_new (void)
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{
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GtkWidget *ev_sidebar_thumbnails;
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ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS,
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"orientation", GTK_ORIENTATION_VERTICAL,
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NULL);
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return ev_sidebar_thumbnails;
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}
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static cairo_surface_t *
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ev_sidebar_thumbnails_get_loading_icon (EvSidebarThumbnails *sidebar_thumbnails,
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gint width,
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gint height)
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{
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EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
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cairo_surface_t *icon;
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gchar *key;
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key = g_strdup_printf ("%dx%d", width, height);
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icon = g_hash_table_lookup (priv->loading_icons, key);
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if (!icon) {
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gboolean inverted_colors;
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gint device_scale = 1;
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#ifdef HAVE_HIDPI_SUPPORT
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device_scale = gtk_widget_get_scale_factor (GTK_WIDGET (sidebar_thumbnails));
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#endif
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inverted_colors = ev_document_model_get_inverted_colors (priv->model);
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icon = ev_document_misc_render_loading_thumbnail_surface (GTK_WIDGET (sidebar_thumbnails),
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width * device_scale,
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height * device_scale,
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inverted_colors);
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g_hash_table_insert (priv->loading_icons, key, icon);
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} else {
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g_free (key);
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}
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return icon;
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}
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static void
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cancel_running_jobs (EvSidebarThumbnails *sidebar_thumbnails,
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gint start_page,
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gint end_page)
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{
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EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
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GtkTreePath *path;
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GtkTreeIter iter;
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gboolean result;
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g_assert (start_page <= end_page);
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path = gtk_tree_path_new_from_indices (start_page, -1);
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for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
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result && start_page <= end_page;
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result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), start_page ++) {
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EvJobThumbnail *job;
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gboolean thumbnail_set;
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gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store),
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&iter,
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COLUMN_JOB, &job,
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COLUMN_THUMBNAIL_SET, &thumbnail_set,
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-1);
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if (thumbnail_set) {
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g_assert (job == NULL);
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continue;
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}
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if (job) {
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g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, sidebar_thumbnails);
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ev_job_cancel (EV_JOB (job));
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g_object_unref (job);
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}
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gtk_list_store_set (priv->list_store, &iter,
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COLUMN_JOB, NULL,
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COLUMN_THUMBNAIL_SET, FALSE,
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-1);
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}
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gtk_tree_path_free (path);
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}
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static void
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get_size_for_page (EvSidebarThumbnails *sidebar_thumbnails,
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gint page,
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gint *width_return,
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gint *height_return)
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{
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EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
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gdouble width, height;
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gint thumbnail_height;
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gint device_scale = 1;
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#ifdef HAVE_HIDPI_SUPPORT
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device_scale = gtk_widget_get_scale_factor (GTK_WIDGET (sidebar_thumbnails));
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#endif
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ev_document_get_page_size (priv->document, page, &width, &height);
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thumbnail_height = (int)(THUMBNAIL_WIDTH * height / width + 0.5);
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if (priv->rotation == 90 || priv->rotation == 270) {
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*width_return = thumbnail_height * device_scale;
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*height_return = THUMBNAIL_WIDTH * device_scale;
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} else {
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*width_return = THUMBNAIL_WIDTH * device_scale;
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*height_return = thumbnail_height * device_scale;
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}
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}
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static void
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add_range (EvSidebarThumbnails *sidebar_thumbnails,
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gint start_page,
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gint end_page)
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{
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EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
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GtkTreePath *path;
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GtkTreeIter iter;
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gboolean result;
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gint page = start_page;
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g_assert (start_page <= end_page);
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if (priv->blank_first_dual_mode)
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page--;
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path = gtk_tree_path_new_from_indices (start_page, -1);
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for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
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result && page <= end_page;
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result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), page ++) {
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EvJob *job;
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gboolean thumbnail_set;
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|
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) {
|
|
gint thumbnail_width, thumbnail_height;
|
|
get_size_for_page (sidebar_thumbnails, page, &thumbnail_width, &thumbnail_height);
|
|
|
|
job = ev_job_thumbnail_new_with_target_size (priv->document,
|
|
page, priv->rotation,
|
|
thumbnail_width, thumbnail_height);
|
|
ev_job_thumbnail_set_has_frame (EV_JOB_THUMBNAIL (job), FALSE);
|
|
ev_job_thumbnail_set_output_format (EV_JOB_THUMBNAIL (job), EV_JOB_THUMBNAIL_SURFACE);
|
|
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;
|
|
|
|
/* 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;
|
|
|
|
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;
|
|
cairo_surface_t *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_SURFACE, loading_icon,
|
|
COLUMN_THUMBNAIL_SET, FALSE,
|
|
-1);
|
|
g_free (page_label);
|
|
g_free (page_string);
|
|
}
|
|
}
|
|
|
|
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];
|
|
|
|
if (priv->blank_first_dual_mode) {
|
|
if (page == 0) {
|
|
gtk_icon_view_unselect_path (icon_view, path);
|
|
gtk_tree_path_free (path);
|
|
g_list_free (selected);
|
|
return;
|
|
}
|
|
page--;
|
|
|
|
}
|
|
|
|
gtk_tree_path_free (path);
|
|
g_list_free (selected);
|
|
|
|
ev_document_model_set_page (priv->model, page);
|
|
}
|
|
|
|
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, "surface", 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);
|
|
|
|
g_signal_connect_swapped (priv->icon_view, "size-allocate",
|
|
G_CALLBACK (check_toggle_blank_first_dual_mode_when_resizing), ev_sidebar_thumbnails);
|
|
|
|
g_signal_connect_data (priv->model, "notify::dual-page",
|
|
G_CALLBACK (check_toggle_blank_first_dual_mode), ev_sidebar_thumbnails,
|
|
NULL, G_CONNECT_SWAPPED | G_CONNECT_AFTER);
|
|
|
|
g_signal_connect_data (priv->model, "notify::dual-odd-left",
|
|
G_CALLBACK (check_toggle_blank_first_dual_mode), ev_sidebar_thumbnails,
|
|
NULL, G_CONNECT_SWAPPED | G_CONNECT_AFTER);
|
|
|
|
check_toggle_blank_first_dual_mode (ev_sidebar_thumbnails);
|
|
gtk_container_add (GTK_CONTAINER (priv->swindow), priv->icon_view);
|
|
gtk_widget_show (priv->icon_view);
|
|
}
|
|
|
|
static void
|
|
ev_sidebar_thumbnails_device_scale_factor_changed_cb (EvSidebarThumbnails *sidebar_thumbnails,
|
|
GParamSpec *pspec)
|
|
|
|
{
|
|
ev_sidebar_thumbnails_reload (sidebar_thumbnails);
|
|
}
|
|
|
|
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_instance_private (ev_sidebar_thumbnails);
|
|
priv->blank_first_dual_mode = FALSE;
|
|
|
|
priv->list_store = gtk_list_store_new (NUM_COLUMNS,
|
|
G_TYPE_STRING,
|
|
CAIRO_GOBJECT_TYPE_SURFACE,
|
|
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);
|
|
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->swindow),
|
|
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
|
|
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);
|
|
|
|
g_signal_connect (ev_sidebar_thumbnails, "notify::scale-factor",
|
|
G_CALLBACK (ev_sidebar_thumbnails_device_scale_factor_changed_cb), NULL);
|
|
|
|
/* Put it all together */
|
|
gtk_widget_show_all (priv->swindow);
|
|
}
|
|
|
|
static void
|
|
ev_sidebar_thumbnails_set_current_page (EvSidebarThumbnails *sidebar,
|
|
gint page)
|
|
{
|
|
GtkTreePath *path;
|
|
|
|
if (sidebar->priv->blank_first_dual_mode)
|
|
page++;
|
|
|
|
path = gtk_tree_path_new_from_indices (page, -1);
|
|
|
|
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 G_SOURCE_REMOVE;
|
|
}
|
|
|
|
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)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (sidebar_thumbnails);
|
|
EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
|
|
GtkTreeIter *iter;
|
|
cairo_surface_t *surface;
|
|
#ifdef HAVE_HIDPI_SUPPORT
|
|
gint device_scale;
|
|
#endif
|
|
|
|
if (ev_job_is_failed (EV_JOB (job)))
|
|
return;
|
|
|
|
#ifdef HAVE_HIDPI_SUPPORT
|
|
device_scale = gtk_widget_get_scale_factor (widget);
|
|
cairo_surface_set_device_scale (job->thumbnail_surface, device_scale, device_scale);
|
|
#endif
|
|
|
|
surface = ev_document_misc_render_thumbnail_surface_with_frame (widget,
|
|
job->thumbnail_surface,
|
|
-1, -1);
|
|
|
|
iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter");
|
|
if (priv->inverted_colors)
|
|
ev_document_misc_invert_surface (surface);
|
|
gtk_list_store_set (priv->list_store,
|
|
iter,
|
|
COLUMN_SURFACE, surface,
|
|
COLUMN_THUMBNAIL_SET, TRUE,
|
|
COLUMN_JOB, NULL,
|
|
-1);
|
|
cairo_surface_destroy (surface);
|
|
|
|
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_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);
|
|
if (priv->loading_icons) {
|
|
g_hash_table_remove_all (priv->loading_icons);
|
|
} else {
|
|
priv->loading_icons = g_hash_table_new_full (g_str_hash,
|
|
g_str_equal,
|
|
(GDestroyNotify)g_free,
|
|
(GDestroyNotify)cairo_surface_destroy);
|
|
}
|
|
|
|
ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
|
|
ev_sidebar_thumbnails_fill_model (sidebar_thumbnails);
|
|
|
|
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);
|
|
}
|
|
|
|
/* 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 TRUE;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static gboolean
|
|
iter_is_blank_thumbnail (GtkTreeModel *tree_model,
|
|
GtkTreeIter *iter)
|
|
{
|
|
cairo_surface_t *surface = NULL;
|
|
EvJob *job = NULL;
|
|
gboolean thumbnail_set = FALSE;
|
|
|
|
gtk_tree_model_get (tree_model, iter,
|
|
COLUMN_SURFACE, &surface,
|
|
COLUMN_THUMBNAIL_SET, &thumbnail_set,
|
|
COLUMN_JOB, &job, -1);
|
|
|
|
/* The blank thumbnail item can be distinguished among all
|
|
* other items in the GtkIconView as it's the only one which
|
|
* has the COLUMN_SURFACE as NULL while COLUMN_THUMBNAIL_SET
|
|
* is set to TRUE. */
|
|
return surface == NULL && job == NULL && thumbnail_set;
|
|
}
|
|
|
|
/* Returns the total horizontal(left+right) width of thumbnail frames.
|
|
* As it was added in ev_document_misc_render_thumbnail_frame() */
|
|
static gint
|
|
ev_sidebar_thumbnails_frame_horizontal_width (EvSidebarThumbnails *sidebar)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkStyleContext *context;
|
|
GtkStateFlags state;
|
|
GtkBorder border = {0, };
|
|
gint offset;
|
|
|
|
widget = GTK_WIDGET (sidebar);
|
|
context = gtk_widget_get_style_context (widget);
|
|
state = gtk_widget_get_state_flags (widget);
|
|
|
|
gtk_style_context_save (context);
|
|
|
|
gtk_style_context_add_class (context, "page-thumbnail");
|
|
gtk_style_context_get_border (context, state, &border);
|
|
offset = border.left + border.right;
|
|
|
|
gtk_style_context_restore (context);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static EvWindow *
|
|
ev_sidebar_thumbnails_get_ev_window (EvSidebarThumbnails *sidebar)
|
|
{
|
|
GtkWidget *toplevel;
|
|
|
|
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
|
|
|
|
if (toplevel && EV_IS_WINDOW (toplevel))
|
|
return EV_WINDOW (toplevel);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static EvSidebar *
|
|
ev_sidebar_thumbnails_get_ev_sidebar (EvSidebarThumbnails *sidebar)
|
|
{
|
|
return EV_SIDEBAR (gtk_widget_get_ancestor (GTK_WIDGET (sidebar),
|
|
EV_TYPE_SIDEBAR));
|
|
}
|
|
|
|
static gboolean
|
|
check_reset_current_page (EvSidebarThumbnails *sidebar_thumbnails)
|
|
{
|
|
ev_sidebar_check_reset_current_page (sidebar_thumbnails);
|
|
return G_SOURCE_REMOVE;
|
|
}
|
|
|
|
static void
|
|
ev_sidebar_thumbnails_get_column_widths (EvSidebarThumbnails *sidebar,
|
|
gint *one_column_width,
|
|
gint *two_columns_width,
|
|
gint *three_columns_width)
|
|
{
|
|
EvSidebarThumbnailsPrivate *priv;
|
|
GtkIconView *icon_view;
|
|
gint margin, column_spacing, item_padding, thumbnail_width;
|
|
static gint frame_horizontal_width;
|
|
|
|
priv = sidebar->priv;
|
|
icon_view = GTK_ICON_VIEW (priv->icon_view);
|
|
|
|
ev_thumbnails_size_cache_get_size (priv->size_cache, 0,
|
|
priv->rotation,
|
|
&thumbnail_width, NULL);
|
|
|
|
margin = gtk_icon_view_get_margin (icon_view);
|
|
column_spacing = gtk_icon_view_get_column_spacing (icon_view);
|
|
item_padding = gtk_icon_view_get_item_padding (icon_view);
|
|
frame_horizontal_width = ev_sidebar_thumbnails_frame_horizontal_width (sidebar);
|
|
|
|
if (one_column_width) {
|
|
*one_column_width = 2 * margin +
|
|
2 * item_padding +
|
|
1 * frame_horizontal_width +
|
|
1 * thumbnail_width +
|
|
column_spacing;
|
|
}
|
|
if (two_columns_width) {
|
|
*two_columns_width = 2 * margin +
|
|
4 * item_padding +
|
|
2 * frame_horizontal_width +
|
|
2 * thumbnail_width +
|
|
column_spacing;
|
|
}
|
|
if (three_columns_width) {
|
|
*three_columns_width = 2 * margin +
|
|
6 * item_padding +
|
|
3 * frame_horizontal_width +
|
|
3 * thumbnail_width +
|
|
2 * column_spacing;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ev_sidebar_thumbnails_get_sidebar_width (EvSidebarThumbnails *sidebar,
|
|
gint *sidebar_width)
|
|
{
|
|
EvWindow *ev_window;
|
|
EvSidebarThumbnailsPrivate *priv;
|
|
|
|
if (!sidebar_width)
|
|
return;
|
|
|
|
priv = sidebar->priv;
|
|
|
|
if (priv->width == 0) {
|
|
ev_window = ev_sidebar_thumbnails_get_ev_window (sidebar);
|
|
if (ev_window)
|
|
*sidebar_width = ev_window_get_metadata_sidebar_size (ev_window);
|
|
else
|
|
*sidebar_width = 0;
|
|
} else {
|
|
*sidebar_width = priv->width;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ev_sidebar_thumbnails_set_sidebar_width (EvSidebarThumbnails *sidebar,
|
|
gint sidebar_width)
|
|
{
|
|
EvWindow *ev_window;
|
|
EvSidebarThumbnailsPrivate *priv;
|
|
|
|
if (sidebar_width <= 0)
|
|
return;
|
|
|
|
ev_window = ev_sidebar_thumbnails_get_ev_window (sidebar);
|
|
if (ev_window) {
|
|
priv = sidebar->priv;
|
|
priv->width = sidebar_width;
|
|
ev_window_set_divider_position (ev_window, sidebar_width);
|
|
g_idle_add ((GSourceFunc)check_reset_current_page, sidebar);
|
|
}
|
|
}
|
|
|
|
/* Returns whether the thumbnail sidebar is currently showing
|
|
* items in a two columns layout */
|
|
static gboolean
|
|
ev_sidebar_thumbnails_is_two_columns (EvSidebarThumbnails *sidebar)
|
|
{
|
|
gint sidebar_width, two_columns_width, three_columns_width;
|
|
|
|
ev_sidebar_thumbnails_get_column_widths (sidebar, NULL, &two_columns_width,
|
|
&three_columns_width);
|
|
ev_sidebar_thumbnails_get_sidebar_width (sidebar, &sidebar_width);
|
|
|
|
return sidebar_width >= two_columns_width &&
|
|
sidebar_width < three_columns_width;
|
|
}
|
|
|
|
/* Returns whether the thumbnail sidebar is currently showing
|
|
* items in a one column layout */
|
|
static gboolean
|
|
ev_sidebar_thumbnails_is_one_column (EvSidebarThumbnails *sidebar)
|
|
{
|
|
gint sidebar_width, one_column_width, two_columns_width;
|
|
|
|
ev_sidebar_thumbnails_get_column_widths (sidebar, &one_column_width,
|
|
&two_columns_width, NULL);
|
|
ev_sidebar_thumbnails_get_sidebar_width (sidebar, &sidebar_width);
|
|
|
|
return sidebar_width >= one_column_width &&
|
|
sidebar_width < two_columns_width;
|
|
}
|
|
|
|
/* If thumbnail sidebar is currently being displayed then
|
|
* it resizes it to be of one column width layout */
|
|
static void
|
|
ev_sidebar_thumbnails_to_one_column (EvSidebarThumbnails *sidebar)
|
|
{
|
|
gint one_column_width;
|
|
|
|
ev_sidebar_thumbnails_get_column_widths (sidebar, &one_column_width,
|
|
NULL, NULL);
|
|
ev_sidebar_thumbnails_set_sidebar_width (sidebar, one_column_width);
|
|
}
|
|
|
|
/* If thumbnail sidebar is currently being displayed then
|
|
* it resizes it to be of two columns width layout */
|
|
static void
|
|
ev_sidebar_thumbnails_to_two_columns (EvSidebarThumbnails *sidebar)
|
|
{
|
|
gint two_columns_width;
|
|
|
|
ev_sidebar_thumbnails_get_column_widths (sidebar, NULL,
|
|
&two_columns_width, NULL);
|
|
ev_sidebar_thumbnails_set_sidebar_width (sidebar, two_columns_width);
|
|
}
|
|
|
|
/* This function checks whether the conditions to insert a blank first item
|
|
* in dual mode are met and activates/deactivates the mode accordingly (that
|
|
* is setting priv->blank_first_dual_mode on/off).
|
|
*
|
|
* Aditionally, we resize the sidebar when asked to do so by following
|
|
* parameter:
|
|
* @resize_sidebar: When true, we will resize sidebar to be one or
|
|
* two columns width, according to whether dual mode is currently off/on.
|
|
* Exception is when user has set sidebar to >=3 columns width, in that
|
|
* case we won't do any resizing to not affect that custom setting */
|
|
static void
|
|
check_toggle_blank_first_dual_mode_real (EvSidebarThumbnails *sidebar_thumbnails,
|
|
gboolean resize_sidebar)
|
|
{
|
|
EvSidebarThumbnailsPrivate *priv;
|
|
GtkTreeModel *tree_model;
|
|
EvSidebar *sidebar;
|
|
GtkTreeIter first;
|
|
gboolean should_be_enabled, is_two_columns, is_one_column, odd_pages_left, dual_mode;
|
|
|
|
priv = sidebar_thumbnails->priv;
|
|
|
|
dual_mode = ev_document_model_get_dual_page (priv->model);
|
|
odd_pages_left = ev_document_model_get_dual_page_odd_pages_left (priv->model);
|
|
should_be_enabled = dual_mode && !odd_pages_left;
|
|
|
|
is_two_columns = ev_sidebar_thumbnails_is_two_columns (sidebar_thumbnails);
|
|
is_one_column = !is_two_columns && ev_sidebar_thumbnails_is_one_column (sidebar_thumbnails);
|
|
if (should_be_enabled)
|
|
should_be_enabled = is_two_columns || resize_sidebar;
|
|
|
|
if (should_be_enabled && !priv->blank_first_dual_mode) {
|
|
/* Do enable it */
|
|
tree_model = GTK_TREE_MODEL (priv->list_store);
|
|
|
|
if (!gtk_tree_model_get_iter_first (tree_model, &first))
|
|
return;
|
|
|
|
if (is_two_columns || is_one_column) {
|
|
priv->blank_first_dual_mode = TRUE;
|
|
if (iter_is_blank_thumbnail (tree_model, &first))
|
|
return; /* extra check */
|
|
|
|
gtk_list_store_insert_with_values (priv->list_store, &first, 0,
|
|
COLUMN_SURFACE, NULL,
|
|
COLUMN_THUMBNAIL_SET, TRUE,
|
|
COLUMN_JOB, NULL,
|
|
-1);
|
|
}
|
|
if (resize_sidebar && is_one_column) {
|
|
sidebar = ev_sidebar_thumbnails_get_ev_sidebar (sidebar_thumbnails);
|
|
/* If sidebar is set to show thumbnails */
|
|
if (sidebar && ev_sidebar_get_current_page (sidebar) == GTK_WIDGET (sidebar_thumbnails)) {
|
|
ev_sidebar_thumbnails_to_two_columns (sidebar_thumbnails);
|
|
}
|
|
}
|
|
} else if (!should_be_enabled && priv->blank_first_dual_mode) {
|
|
/* Do disable it */
|
|
tree_model = GTK_TREE_MODEL (priv->list_store);
|
|
|
|
if (!gtk_tree_model_get_iter_first (tree_model, &first))
|
|
return;
|
|
|
|
priv->blank_first_dual_mode = FALSE;
|
|
if (!iter_is_blank_thumbnail (tree_model, &first))
|
|
return; /* extra check */
|
|
|
|
gtk_list_store_remove (priv->list_store, &first);
|
|
|
|
if (resize_sidebar && is_two_columns) {
|
|
sidebar = ev_sidebar_thumbnails_get_ev_sidebar (sidebar_thumbnails);
|
|
/* If dual_mode disabled and is_two_cols and sidebar is set to show thumbnails */
|
|
if (!dual_mode && sidebar && is_two_columns &&
|
|
ev_sidebar_get_current_page (sidebar) == GTK_WIDGET (sidebar_thumbnails)) {
|
|
ev_sidebar_thumbnails_to_one_column (sidebar_thumbnails);
|
|
}
|
|
} else if (resize_sidebar && !is_one_column) {
|
|
ev_sidebar_check_reset_current_page (sidebar_thumbnails);
|
|
}
|
|
} else if (resize_sidebar) {
|
|
/* Match sidebar width with dual_mode when sidebar has currently a width of 1 or 2 columns */
|
|
if (dual_mode && is_one_column) {
|
|
sidebar = ev_sidebar_thumbnails_get_ev_sidebar (sidebar_thumbnails);
|
|
if (sidebar && ev_sidebar_get_current_page (sidebar) == GTK_WIDGET (sidebar_thumbnails)) {
|
|
ev_sidebar_thumbnails_to_two_columns (sidebar_thumbnails);
|
|
}
|
|
} else if (!dual_mode && is_two_columns) {
|
|
sidebar = ev_sidebar_thumbnails_get_ev_sidebar (sidebar_thumbnails);
|
|
if (sidebar && ev_sidebar_get_current_page (sidebar) == GTK_WIDGET (sidebar_thumbnails)) {
|
|
ev_sidebar_thumbnails_to_one_column (sidebar_thumbnails);
|
|
}
|
|
} else {
|
|
ev_sidebar_check_reset_current_page (sidebar_thumbnails);
|
|
}
|
|
} else {
|
|
ev_sidebar_check_reset_current_page (sidebar_thumbnails);
|
|
}
|
|
}
|
|
|
|
/* Callback when manually resizing the sidebar */
|
|
static void
|
|
check_toggle_blank_first_dual_mode_when_resizing (EvSidebarThumbnails *sidebar_thumbnails)
|
|
{
|
|
check_toggle_blank_first_dual_mode_real (sidebar_thumbnails, FALSE);
|
|
}
|
|
|
|
/* Callback when dual_mode or odd_left preferences are enabled/disabled by the user */
|
|
static void
|
|
check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails)
|
|
{
|
|
check_toggle_blank_first_dual_mode_real (sidebar_thumbnails, TRUE);
|
|
}
|