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/*
* Copyright (C) 2014 Red Hat, Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "list-box-helper.h"
#define MAX_ROWS_VISIBLE 5
struct _CcListBoxRow
{
GtkListBoxRow parent_instance;
};
G_DEFINE_TYPE (CcListBoxRow, cc_list_box_row, GTK_TYPE_LIST_BOX_ROW)
enum
{
BOX_ROW_ACTIVATED,
LAST_BOX_ROW_SIGNAL
};
static guint cc_list_box_row_signals[LAST_BOX_ROW_SIGNAL] = { 0 };
static void
cc_list_box_row_class_init (CcListBoxRowClass *klass)
{
cc_list_box_row_signals[BOX_ROW_ACTIVATED] =
g_signal_new ("activated",
CC_TYPE_LIST_BOX_ROW,
G_SIGNAL_RUN_LAST,
0, NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static void cc_list_box_row_init (CcListBoxRow *self) {}
struct _CcListBox
{
GtkListBox parent_instance;
};
G_DEFINE_TYPE (CcListBox, cc_list_box, GTK_TYPE_LIST_BOX)
static void
cc_list_box_row_activated (GtkListBox *box, GtkListBoxRow *row)
{
if (CC_IS_LIST_BOX_ROW (row))
g_signal_emit (row, cc_list_box_row_signals[BOX_ROW_ACTIVATED], 0);
}
static void
cc_list_box_class_init (CcListBoxClass *klass)
{
GtkListBoxClass *parent_class = GTK_LIST_BOX_CLASS (klass);
parent_class->row_activated = cc_list_box_row_activated;
}
static void cc_list_box_init (CcListBox *self) {}
void
cc_list_box_update_header_func (GtkListBoxRow *row,
GtkListBoxRow *before,
gpointer user_data)
{
GtkWidget *current;
if (before == NULL)
{
gtk_list_box_row_set_header (row, NULL);
return;
}
current = gtk_list_box_row_get_header (row);
if (current == NULL)
{
current = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
gtk_widget_show (current);
gtk_list_box_row_set_header (row, current);
}
}
void
cc_list_box_adjust_scrolling (GtkListBox *listbox)
{
GtkWidget *scrolled_window;
GList *children;
guint n_rows, num_max_rows;
scrolled_window = g_object_get_data (G_OBJECT (listbox), "cc-scrolling-scrolled-window");
if (!scrolled_window)
return;
children = gtk_container_get_children (GTK_CONTAINER (listbox));
n_rows = g_list_length (children);
num_max_rows = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (listbox), "cc-max-rows-visible"));
if (n_rows >= num_max_rows)
{
gint total_row_height = 0;
GList *l;
guint i;
for (l = children, i = 0; l != NULL && i < num_max_rows; l = l->next, i++) {
gint row_height;
gtk_widget_get_preferred_height (GTK_WIDGET (l->data), &row_height, NULL);
total_row_height += row_height;
}
gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (scrolled_window), total_row_height);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
}
else
{
gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (scrolled_window), -1);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
}
g_list_free (children);
}
void
cc_list_box_setup_scrolling (GtkListBox *listbox,
guint num_max_rows)
{
GtkWidget *parent;
GtkWidget *scrolled_window;
parent = gtk_widget_get_parent (GTK_WIDGET (listbox));
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_show (scrolled_window);
g_object_ref (listbox);
gtk_container_remove (GTK_CONTAINER (parent), GTK_WIDGET (listbox));
gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (listbox));
g_object_unref (listbox);
gtk_container_add (GTK_CONTAINER (parent), scrolled_window);
if (num_max_rows == 0)
num_max_rows = MAX_ROWS_VISIBLE;
g_object_set_data (G_OBJECT (listbox), "cc-scrolling-scrolled-window", scrolled_window);
g_object_set_data (G_OBJECT (listbox), "cc-max-rows-visible", GUINT_TO_POINTER (num_max_rows));
}
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