61a6c6f0cb
GtkListBox doesn't implement GtkScrollable so it needs to be added to a GtkViewport. Instead of having to do this in all .ui files, add a new helper function to setup the widget tree correctly. https://bugzilla.gnome.org/show_bug.cgi?id=732175
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
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* Copyright (C) 2014 Red Hat, Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it 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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "list-box-helper.h"
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#define MAX_ROWS_VISIBLE 5
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void
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cc_list_box_update_header_func (GtkListBoxRow *row,
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GtkListBoxRow *before,
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gpointer user_data)
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{
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GtkWidget *current;
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if (before == NULL)
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return;
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current = gtk_list_box_row_get_header (row);
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if (current == NULL)
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{
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current = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
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gtk_widget_show (current);
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gtk_list_box_row_set_header (row, current);
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}
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}
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void
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cc_list_box_adjust_scrolling (GtkListBox *listbox)
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{
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GtkWidget *parent;
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GtkWidget *scrolled_window;
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GList *children;
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guint n_rows;
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parent = g_object_get_data (G_OBJECT (listbox), "cc-scrolling-parent");
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scrolled_window = g_object_get_data (G_OBJECT (listbox), "cc-scrolling-scrolled-window");
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if (!parent || !scrolled_window)
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return;
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children = gtk_container_get_children (GTK_CONTAINER (listbox));
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n_rows = g_list_length (children);
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g_list_free (children);
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if (n_rows >= MAX_ROWS_VISIBLE)
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{
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gint height;
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gtk_widget_get_preferred_height (parent, NULL, &height);
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gtk_widget_set_size_request (parent, -1, height);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
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}
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else
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{
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gtk_widget_set_size_request (parent, -1, -1);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_POLICY_NEVER, GTK_POLICY_NEVER);
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}
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}
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void
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cc_list_box_setup_scrolling (GtkListBox *listbox)
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{
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GtkWidget *parent;
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GtkWidget *scrolled_window;
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parent = gtk_widget_get_parent (GTK_WIDGET (listbox));
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scrolled_window = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_show (scrolled_window);
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g_object_ref (listbox);
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gtk_container_remove (GTK_CONTAINER (parent), GTK_WIDGET (listbox));
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gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (listbox));
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g_object_unref (listbox);
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gtk_container_add (GTK_CONTAINER (parent), scrolled_window);
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g_object_set_data (G_OBJECT (listbox), "cc-scrolling-parent", parent);
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g_object_set_data (G_OBJECT (listbox), "cc-scrolling-scrolled-window", scrolled_window);
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}
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