[evince/dual_sets_sidebar_width: 7/7] sidebar-thumbnails: switch to two colums layout
- From: Germán Poo-Caamaño <gpoo src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [evince/dual_sets_sidebar_width: 7/7] sidebar-thumbnails: switch to two colums layout
- Date: Thu, 4 Feb 2021 03:58:05 +0000 (UTC)
commit e0367dda2433c0255587cf02db9477a62afe6dc3
Author: Nelson Benítez León <nbenitezl gmail com>
Date: Thu Jan 28 12:25:22 2021 -0400
sidebar-thumbnails: switch to two colums layout
when enabling dual-mode and we have a one-column
layout, and correspondingly switch to one column
layout when we are on a two column layout and we
disable dual-mode.
Issue #1541
shell/ev-sidebar-thumbnails.c | 322 +++++++++++++++++++++++++++++++++---------
shell/ev-sidebar.c | 2 +-
shell/ev-sidebar.h | 1 +
shell/ev-window.c | 14 ++
shell/ev-window.h | 1 +
5 files changed, 273 insertions(+), 67 deletions(-)
---
diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c
index 97398bd7..38ff58d5 100644
--- a/shell/ev-sidebar-thumbnails.c
+++ b/shell/ev-sidebar-thumbnails.c
@@ -1,3 +1,4 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
/* this file is part of evince, a gnome document viewer
*
* Copyright (C) 2004 Red Hat, Inc.
@@ -35,6 +36,7 @@
#include "ev-document-misc.h"
#include "ev-job-scheduler.h"
+#include "ev-sidebar.h"
#include "ev-sidebar-page.h"
#include "ev-sidebar-thumbnails.h"
#include "ev-utils.h"
@@ -101,6 +103,7 @@ static void thumbnail_job_completed_callback (EvJobThumbnail
static void ev_sidebar_thumbnails_reload (EvSidebarThumbnails *sidebar_thumbnails);
static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails);
static void check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails);
+static void check_toggle_blank_first_dual_mode_when_resizing (EvSidebarThumbnails
*sidebar_thumbnails);
G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
ev_sidebar_thumbnails,
@@ -315,6 +318,19 @@ ev_sidebar_fullscreen_cb (EvSidebarThumbnails *sidebar)
g_signal_emit_by_name (sidebar->priv->vadjustment, "value-changed");
}
+static void
+ev_sidebar_check_reset_current_page (EvSidebarThumbnails *sidebar)
+{
+ guint page;
+
+ if (!sidebar->priv->model)
+ return;
+
+ page = ev_document_model_get_page (sidebar->priv->model);
+ if (!ev_sidebar_thumbnails_page_is_in_visible_range (sidebar, page))
+ ev_sidebar_thumbnails_set_current_page (sidebar, page);
+}
+
static void
ev_sidebar_thumbnails_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
@@ -324,17 +340,10 @@ ev_sidebar_thumbnails_size_allocate (GtkWidget *widget,
GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->size_allocate (widget, allocation);
if (allocation->width != sidebar->priv->width) {
- guint page;
-
sidebar->priv->width = allocation->width;
/* Might have a new number of columns, reset current page */
- if (!sidebar->priv->model)
- return;
-
- page = ev_document_model_get_page (sidebar->priv->model);
- if (!ev_sidebar_thumbnails_page_is_in_visible_range (sidebar, page))
- ev_sidebar_thumbnails_set_current_page (sidebar, page);
+ ev_sidebar_check_reset_current_page (sidebar);
}
}
@@ -715,7 +724,7 @@ ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
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), ev_sidebar_thumbnails);
+ 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,
@@ -1092,71 +1101,202 @@ ev_sidebar_thumbnails_frame_horizontal_width (EvSidebarThumbnails *sidebar)
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)
+{
+ EvWindow *window = ev_sidebar_thumbnails_get_ev_window (sidebar);
+ if (window)
+ return EV_SIDEBAR (ev_window_get_sidebar (window));
+
+ return NULL;
+}
+
+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)
{
- EvSidebarThumbnailsPrivate *priv;
- GtkWidget *window;
- GtkIconView *icon_view;
- gint sidebar_width, two_columns_width, three_columns_width;
- 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);
-
- two_columns_width = 2 * margin +
- 4 * item_padding +
- 2 * frame_horizontal_width +
- 2 * thumbnail_width +
- column_spacing;
-
- three_columns_width = 2 * margin +
- 6 * item_padding +
- 3 * frame_horizontal_width +
- 3 * thumbnail_width +
- 2 * column_spacing;
-
- if (priv->width == 0) {
- window = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
- if (EV_IS_WINDOW (window))
- sidebar_width = ev_window_get_metadata_sidebar_size (EV_WINDOW (window));
- else
- sidebar_width = 0;
- } else {
- sidebar_width = priv->width;
- }
+ 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;
+ 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);
}
/* Checks whether the conditions for 'blank first dual mode' are met,
- * and activates/deactivates the mode accordingly. */
+ * and activates/deactivates the mode accordingly.
+ * resize_sidebar param: On enabling, resize sidebar to two column
+ * width, and on disabling resize to one column width */
static void
-check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails)
+check_toggle_blank_first_dual_mode_real (EvSidebarThumbnails *sidebar_thumbnails,
+ gboolean resize_sidebar)
{
EvSidebarThumbnailsPrivate *priv;
GtkTreeModel *tree_model;
GtkTreeIter first;
- gboolean should_be_enabled;
+ gboolean should_be_enabled, is_two_columns, is_one_column, odd_pages_left, dual_mode;
+
+ priv = sidebar_thumbnails->priv;
- 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;
- should_be_enabled = ev_document_model_get_dual_page (priv->model) &&
- !ev_document_model_get_dual_page_odd_pages_left (priv->model) &&
- ev_sidebar_thumbnails_is_two_columns (sidebar_thumbnails);
+ 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 */
@@ -1165,15 +1305,24 @@ check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails)
if (!gtk_tree_model_get_iter_first (tree_model, &first))
return;
- priv->blank_first_dual_mode = TRUE;
- if (iter_is_blank_thumbnail (tree_model, &first))
- return; /* extra check */
+ 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);
+ 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) {
+ EvSidebar *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);
@@ -1186,5 +1335,46 @@ check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails)
return; /* extra check */
gtk_list_store_remove (priv->list_store, &first);
+
+ if (resize_sidebar && is_two_columns) {
+ EvSidebar *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) {
+ if (dual_mode && is_one_column) {
+ EvSidebar *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) {
+ EvSidebar *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);
+}
diff --git a/shell/ev-sidebar.c b/shell/ev-sidebar.c
index a053c0df..ff8ca1d1 100644
--- a/shell/ev-sidebar.c
+++ b/shell/ev-sidebar.c
@@ -96,7 +96,7 @@ ev_sidebar_set_property (GObject *object,
}
}
-static GtkWidget *
+GtkWidget *
ev_sidebar_get_current_page (EvSidebar *ev_sidebar)
{
EvSidebarPrivate *priv = GET_PRIVATE (ev_sidebar);
diff --git a/shell/ev-sidebar.h b/shell/ev-sidebar.h
index d8ad90f1..74ba1cdc 100644
--- a/shell/ev-sidebar.h
+++ b/shell/ev-sidebar.h
@@ -61,6 +61,7 @@ void ev_sidebar_set_page (EvSidebar *ev_sidebar,
GtkWidget *main_widget);
void ev_sidebar_set_model (EvSidebar *ev_sidebar,
EvDocumentModel *model);
+GtkWidget *ev_sidebar_get_current_page (EvSidebar *ev_sidebar);
G_END_DECLS
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 14efd85b..17e03b75 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -8132,3 +8132,17 @@ ev_window_get_metadata_sidebar_size (EvWindow *ev_window)
return 0;
}
+
+/* Sets the position of the divider between the sidebar and the main view */
+void
+ev_window_set_divider_position (EvWindow *ev_window,
+ gint sidebar_width)
+{
+ EvWindowPrivate *priv;
+
+ g_return_if_fail (EV_WINDOW (ev_window));
+
+ priv = GET_PRIVATE (ev_window);
+
+ gtk_paned_set_position (GTK_PANED (priv->hpaned), sidebar_width);
+}
diff --git a/shell/ev-window.h b/shell/ev-window.h
index cd20baaa..ab926413 100644
--- a/shell/ev-window.h
+++ b/shell/ev-window.h
@@ -99,6 +99,7 @@ EvMetadata *ev_window_get_metadata (EvWindow *ev_window);
gint ev_window_get_metadata_sidebar_size (EvWindow *ev_window);
GtkWidget *ev_window_get_sidebar (EvWindow *ev_window);
GtkWidget *ev_window_get_find_sidebar (EvWindow *ev_window);
+void ev_window_set_divider_position (EvWindow *ev_window, gint sidebar_width);
G_END_DECLS
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