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773 lines
23 KiB
C
773 lines
23 KiB
C
/* HexChat
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* Copyright (C) 1998-2010 Peter Zelezny.
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* Copyright (C) 2009-2013 Berke Viktor.
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "custom-list.h"
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/* indent -i3 -ci3 -ut -ts3 -bli0 -c0 custom-list.c */
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/* boring declarations of local functions */
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static void custom_list_init (CustomList * pkg_tree);
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static void custom_list_class_init (CustomListClass * klass);
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static void custom_list_tree_model_init (GtkTreeModelIface * iface);
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static void custom_list_finalize (GObject * object);
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static GtkTreeModelFlags custom_list_get_flags (GtkTreeModel * tree_model);
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static gint custom_list_get_n_columns (GtkTreeModel * tree_model);
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static GType custom_list_get_column_type (GtkTreeModel * tree_model,
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gint index);
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static gboolean custom_list_get_iter (GtkTreeModel * tree_model,
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GtkTreeIter * iter, GtkTreePath * path);
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static GtkTreePath *custom_list_get_path (GtkTreeModel * tree_model,
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GtkTreeIter * iter);
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static void custom_list_get_value (GtkTreeModel * tree_model,
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GtkTreeIter * iter,
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gint column, GValue * value);
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static gboolean custom_list_iter_next (GtkTreeModel * tree_model,
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GtkTreeIter * iter);
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static gboolean custom_list_iter_children (GtkTreeModel * tree_model,
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GtkTreeIter * iter,
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GtkTreeIter * parent);
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static gboolean custom_list_iter_has_child (GtkTreeModel * tree_model,
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GtkTreeIter * iter);
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static gint custom_list_iter_n_children (GtkTreeModel * tree_model,
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GtkTreeIter * iter);
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static gboolean custom_list_iter_nth_child (GtkTreeModel * tree_model,
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GtkTreeIter * iter,
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GtkTreeIter * parent, gint n);
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static gboolean custom_list_iter_parent (GtkTreeModel * tree_model,
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GtkTreeIter * iter,
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GtkTreeIter * child);
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/* -- GtkTreeSortable interface functions -- */
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static gboolean custom_list_sortable_get_sort_column_id (GtkTreeSortable *
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sortable,
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gint * sort_col_id,
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GtkSortType * order);
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static void custom_list_sortable_set_sort_column_id (GtkTreeSortable *
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sortable,
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gint sort_col_id,
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GtkSortType order);
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static void custom_list_sortable_set_sort_func (GtkTreeSortable * sortable,
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gint sort_col_id,
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GtkTreeIterCompareFunc
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sort_func, gpointer user_data,
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GtkDestroyNotify
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destroy_func);
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static void custom_list_sortable_set_default_sort_func (GtkTreeSortable *
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sortable,
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GtkTreeIterCompareFunc
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sort_func,
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gpointer user_data,
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GtkDestroyNotify
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destroy_func);
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static gboolean custom_list_sortable_has_default_sort_func (GtkTreeSortable *
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sortable);
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static GObjectClass *parent_class = NULL; /* GObject stuff - nothing to worry about */
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static void
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custom_list_sortable_init (GtkTreeSortableIface * iface)
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{
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iface->get_sort_column_id = custom_list_sortable_get_sort_column_id;
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iface->set_sort_column_id = custom_list_sortable_set_sort_column_id;
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iface->set_sort_func = custom_list_sortable_set_sort_func; /* NOT SUPPORTED */
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iface->set_default_sort_func = custom_list_sortable_set_default_sort_func; /* NOT SUPPORTED */
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iface->has_default_sort_func = custom_list_sortable_has_default_sort_func; /* NOT SUPPORTED */
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}
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/*****************************************************************************
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*
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* custom_list_get_type: here we register our new type and its interfaces
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* with the type system. If you want to implement
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* additional interfaces like GtkTreeSortable, you
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* will need to do it here.
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*
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*****************************************************************************/
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GType
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custom_list_get_type (void)
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{
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static GType custom_list_type = 0;
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if (custom_list_type)
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return custom_list_type;
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/* Some boilerplate type registration stuff */
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if (1)
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{
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static const GTypeInfo custom_list_info = {
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sizeof (CustomListClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) custom_list_class_init,
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NULL, /* class finalize */
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NULL, /* class_data */
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sizeof (CustomList),
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0, /* n_preallocs */
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(GInstanceInitFunc) custom_list_init
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};
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custom_list_type =
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g_type_register_static (G_TYPE_OBJECT, "CustomList",
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&custom_list_info, (GTypeFlags) 0);
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}
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/* Here we register our GtkTreeModel interface with the type system */
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if (1)
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{
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static const GInterfaceInfo tree_model_info = {
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(GInterfaceInitFunc) custom_list_tree_model_init,
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NULL,
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NULL
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};
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g_type_add_interface_static (custom_list_type, GTK_TYPE_TREE_MODEL,
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&tree_model_info);
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}
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/* Add GtkTreeSortable interface */
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if (1)
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{
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static const GInterfaceInfo tree_sortable_info = {
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(GInterfaceInitFunc) custom_list_sortable_init,
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NULL,
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NULL
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};
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g_type_add_interface_static (custom_list_type,
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GTK_TYPE_TREE_SORTABLE,
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&tree_sortable_info);
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}
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return custom_list_type;
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}
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/*****************************************************************************
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*
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* custom_list_class_init: more boilerplate GObject/GType stuff.
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* Init callback for the type system,
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* called once when our new class is created.
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*
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*****************************************************************************/
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static void
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custom_list_class_init (CustomListClass * klass)
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{
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GObjectClass *object_class;
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parent_class = (GObjectClass *) g_type_class_peek_parent (klass);
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object_class = (GObjectClass *) klass;
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object_class->finalize = custom_list_finalize;
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}
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/*****************************************************************************
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*
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* custom_list_tree_model_init: init callback for the interface registration
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* in custom_list_get_type. Here we override
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* the GtkTreeModel interface functions that
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* we implement.
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*
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*****************************************************************************/
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static void
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custom_list_tree_model_init (GtkTreeModelIface * iface)
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{
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iface->get_flags = custom_list_get_flags;
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iface->get_n_columns = custom_list_get_n_columns;
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iface->get_column_type = custom_list_get_column_type;
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iface->get_iter = custom_list_get_iter;
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iface->get_path = custom_list_get_path;
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iface->get_value = custom_list_get_value;
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iface->iter_next = custom_list_iter_next;
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iface->iter_children = custom_list_iter_children;
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iface->iter_has_child = custom_list_iter_has_child;
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iface->iter_n_children = custom_list_iter_n_children;
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iface->iter_nth_child = custom_list_iter_nth_child;
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iface->iter_parent = custom_list_iter_parent;
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}
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/*****************************************************************************
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*
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* custom_list_init: this is called everytime a new custom list object
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* instance is created (we do that in custom_list_new).
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* Initialise the list structure's fields here.
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*
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*****************************************************************************/
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static void
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custom_list_init (CustomList * custom_list)
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{
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custom_list->n_columns = CUSTOM_LIST_N_COLUMNS;
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custom_list->column_types[0] = G_TYPE_STRING; /* CUSTOM_LIST_COL_NAME */
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custom_list->column_types[1] = G_TYPE_UINT; /* CUSTOM_LIST_COL_USERS */
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custom_list->column_types[2] = G_TYPE_STRING; /* CUSTOM_LIST_COL_TOPIC */
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custom_list->num_rows = 0;
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custom_list->num_alloc = 0;
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custom_list->rows = NULL;
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custom_list->sort_id = SORT_ID_CHANNEL;
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custom_list->sort_order = GTK_SORT_ASCENDING;
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}
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/*****************************************************************************
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*
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* custom_list_finalize: this is called just before a custom list is
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* destroyed. Free dynamically allocated memory here.
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*
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*****************************************************************************/
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static void
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custom_list_finalize (GObject * object)
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{
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custom_list_clear (CUSTOM_LIST (object));
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/* must chain up - finalize parent */
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(*parent_class->finalize) (object);
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}
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/*****************************************************************************
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*
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* custom_list_get_flags: tells the rest of the world whether our tree model
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* has any special characteristics. In our case,
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* we have a list model (instead of a tree), and each
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* tree iter is valid as long as the row in question
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* exists, as it only contains a pointer to our struct.
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*
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*****************************************************************************/
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static GtkTreeModelFlags
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custom_list_get_flags (GtkTreeModel * tree_model)
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{
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return (GTK_TREE_MODEL_LIST_ONLY /*| GTK_TREE_MODEL_ITERS_PERSIST */ );
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}
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/*****************************************************************************
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*
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* custom_list_get_n_columns: tells the rest of the world how many data
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* columns we export via the tree model interface
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*
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*****************************************************************************/
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static gint
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custom_list_get_n_columns (GtkTreeModel * tree_model)
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{
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return 3;/*CUSTOM_LIST (tree_model)->n_columns;*/
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}
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/*****************************************************************************
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*
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* custom_list_get_column_type: tells the rest of the world which type of
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* data an exported model column contains
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*
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*****************************************************************************/
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static GType
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custom_list_get_column_type (GtkTreeModel * tree_model, gint index)
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{
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return CUSTOM_LIST (tree_model)->column_types[index];
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}
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/*****************************************************************************
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*
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* custom_list_get_iter: converts a tree path (physical position) into a
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* tree iter structure (the content of the iter
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* fields will only be used internally by our model).
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* We simply store a pointer to our chanlistrow
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* structure that represents that row in the tree iter.
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*
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*****************************************************************************/
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static gboolean
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custom_list_get_iter (GtkTreeModel * tree_model,
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GtkTreeIter * iter, GtkTreePath * path)
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{
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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chanlistrow *record;
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gint n;
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n = gtk_tree_path_get_indices (path)[0];
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if (n >= custom_list->num_rows || n < 0)
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return FALSE;
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record = custom_list->rows[n];
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/* We simply store a pointer to our custom record in the iter */
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iter->user_data = record;
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return TRUE;
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}
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/*****************************************************************************
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*
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* custom_list_get_path: converts a tree iter into a tree path (ie. the
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* physical position of that row in the list).
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*
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*****************************************************************************/
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static GtkTreePath *
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custom_list_get_path (GtkTreeModel * tree_model, GtkTreeIter * iter)
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{
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GtkTreePath *path;
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chanlistrow *record;
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record = (chanlistrow *) iter->user_data;
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path = gtk_tree_path_new ();
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gtk_tree_path_append_index (path, record->pos);
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return path;
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}
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/*****************************************************************************
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*
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* custom_list_get_value: Returns a row's exported data columns
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* (_get_value is what gtk_tree_model_get uses)
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*
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*****************************************************************************/
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static void
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custom_list_get_value (GtkTreeModel * tree_model,
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GtkTreeIter * iter, gint column, GValue * value)
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{
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chanlistrow *record;
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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if (custom_list->num_rows == 0)
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return;
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g_value_init (value, custom_list->column_types[column]);
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record = (chanlistrow *) iter->user_data;
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switch (column)
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{
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case CUSTOM_LIST_COL_NAME:
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g_value_set_static_string (value, GET_CHAN (record));
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break;
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case CUSTOM_LIST_COL_USERS:
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g_value_set_uint (value, record->users);
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break;
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case CUSTOM_LIST_COL_TOPIC:
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g_value_set_static_string (value, record->topic);
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break;
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}
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}
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/*****************************************************************************
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*
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* custom_list_iter_next: Takes an iter structure and sets it to point
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* to the next row.
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*
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*****************************************************************************/
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static gboolean
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custom_list_iter_next (GtkTreeModel * tree_model, GtkTreeIter * iter)
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{
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chanlistrow *record, *nextrecord;
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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record = (chanlistrow *) iter->user_data;
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/* Is this the last record in the list? */
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if ((record->pos + 1) >= custom_list->num_rows)
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return FALSE;
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nextrecord = custom_list->rows[(record->pos + 1)];
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g_assert (nextrecord != NULL);
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g_assert (nextrecord->pos == (record->pos + 1));
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iter->user_data = nextrecord;
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return TRUE;
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}
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/*****************************************************************************
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*
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* custom_list_iter_children: Returns TRUE or FALSE depending on whether
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* the row specified by 'parent' has any children.
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* If it has children, then 'iter' is set to
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* point to the first child. Special case: if
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* 'parent' is NULL, then the first top-level
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* row should be returned if it exists.
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*
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*****************************************************************************/
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static gboolean
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custom_list_iter_children (GtkTreeModel * tree_model,
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GtkTreeIter * iter, GtkTreeIter * parent)
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{
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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/* this is a list, nodes have no children */
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if (parent)
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return FALSE;
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/* parent == NULL is a special case; we need to return the first top-level row */
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/* No rows => no first row */
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if (custom_list->num_rows == 0)
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return FALSE;
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/* Set iter to first item in list */
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iter->user_data = custom_list->rows[0];
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return TRUE;
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}
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/*****************************************************************************
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*
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* custom_list_iter_has_child: Returns TRUE or FALSE depending on whether
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* the row specified by 'iter' has any children.
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* We only have a list and thus no children.
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*
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*****************************************************************************/
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static gboolean
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custom_list_iter_has_child (GtkTreeModel * tree_model, GtkTreeIter * iter)
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{
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return FALSE;
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}
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/*****************************************************************************
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*
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* custom_list_iter_n_children: Returns the number of children the row
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* specified by 'iter' has. This is usually 0,
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* as we only have a list and thus do not have
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* any children to any rows. A special case is
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* when 'iter' is NULL, in which case we need
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* to return the number of top-level nodes,
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* ie. the number of rows in our list.
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*
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*****************************************************************************/
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static gint
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custom_list_iter_n_children (GtkTreeModel * tree_model, GtkTreeIter * iter)
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{
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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/* special case: if iter == NULL, return number of top-level rows */
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if (!iter)
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return custom_list->num_rows;
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return 0; /* otherwise, this is easy again for a list */
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}
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/*****************************************************************************
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*
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* custom_list_iter_nth_child: If the row specified by 'parent' has any
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* children, set 'iter' to the n-th child and
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* return TRUE if it exists, otherwise FALSE.
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* A special case is when 'parent' is NULL, in
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* which case we need to set 'iter' to the n-th
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* row if it exists.
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*
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*****************************************************************************/
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static gboolean
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custom_list_iter_nth_child (GtkTreeModel * tree_model,
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GtkTreeIter * iter, GtkTreeIter * parent, gint n)
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{
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CustomList *custom_list = CUSTOM_LIST (tree_model);
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/* a list has only top-level rows */
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if (parent)
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return FALSE;
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/* special case: if parent == NULL, set iter to n-th top-level row */
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if (n >= custom_list->num_rows)
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return FALSE;
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iter->user_data = custom_list->rows[n];
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return TRUE;
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}
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/*****************************************************************************
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*
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* custom_list_iter_parent: Point 'iter' to the parent node of 'child'. As
|
|
* we have a list and thus no children and no
|
|
* parents of children, we can just return FALSE.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static gboolean
|
|
custom_list_iter_parent (GtkTreeModel * tree_model,
|
|
GtkTreeIter * iter, GtkTreeIter * child)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
custom_list_sortable_get_sort_column_id (GtkTreeSortable * sortable,
|
|
gint * sort_col_id,
|
|
GtkSortType * order)
|
|
{
|
|
CustomList *custom_list = CUSTOM_LIST (sortable);
|
|
|
|
if (sort_col_id)
|
|
*sort_col_id = custom_list->sort_id;
|
|
|
|
if (order)
|
|
*order = custom_list->sort_order;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
custom_list_sortable_set_sort_column_id (GtkTreeSortable * sortable,
|
|
gint sort_col_id, GtkSortType order)
|
|
{
|
|
CustomList *custom_list = CUSTOM_LIST (sortable);
|
|
|
|
if (custom_list->sort_id == sort_col_id
|
|
&& custom_list->sort_order == order)
|
|
return;
|
|
|
|
custom_list->sort_id = sort_col_id;
|
|
custom_list->sort_order = order;
|
|
|
|
custom_list_resort (custom_list);
|
|
|
|
/* emit "sort-column-changed" signal to tell any tree views
|
|
* that the sort column has changed (so the little arrow
|
|
* in the column header of the sort column is drawn
|
|
* in the right column) */
|
|
|
|
gtk_tree_sortable_sort_column_changed (sortable);
|
|
}
|
|
|
|
static void
|
|
custom_list_sortable_set_sort_func (GtkTreeSortable * sortable,
|
|
gint sort_col_id,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GtkDestroyNotify destroy_func)
|
|
{
|
|
}
|
|
|
|
static void
|
|
custom_list_sortable_set_default_sort_func (GtkTreeSortable * sortable,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GtkDestroyNotify destroy_func)
|
|
{
|
|
}
|
|
|
|
static gboolean
|
|
custom_list_sortable_has_default_sort_func (GtkTreeSortable * sortable)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
/* fast as possible compare func for sorting.
|
|
TODO: If fast enough, use a unicode collation key and strcmp. */
|
|
|
|
#define TOSML(c) (((c) >= 'A' && (c) <= 'Z') ? (c) - 'A' + 'a' : (c))
|
|
|
|
static inline int
|
|
fast_ascii_stricmp (const char *s1, const char *s2)
|
|
{
|
|
int c1, c2;
|
|
|
|
while (*s1 && *s2)
|
|
{
|
|
c1 = (int) (unsigned char) TOSML (*s1);
|
|
c2 = (int) (unsigned char) TOSML (*s2);
|
|
if (c1 != c2)
|
|
return (c1 - c2);
|
|
s1++;
|
|
s2++;
|
|
}
|
|
|
|
return (((int) (unsigned char) *s1) - ((int) (unsigned char) *s2));
|
|
}
|
|
|
|
static gint
|
|
custom_list_qsort_compare_func (chanlistrow ** a, chanlistrow ** b,
|
|
CustomList * custom_list)
|
|
{
|
|
if (custom_list->sort_order == GTK_SORT_DESCENDING)
|
|
{
|
|
chanlistrow **tmp = a;
|
|
a = b;
|
|
b = tmp;
|
|
}
|
|
|
|
if (custom_list->sort_id == SORT_ID_USERS)
|
|
{
|
|
return (*a)->users - (*b)->users;
|
|
}
|
|
|
|
if (custom_list->sort_id == SORT_ID_TOPIC)
|
|
{
|
|
return fast_ascii_stricmp ((*a)->topic, (*b)->topic);
|
|
}
|
|
|
|
return strcmp ((*a)->collation_key, (*b)->collation_key);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* custom_list_new: This is what you use in your own code to create a
|
|
* new custom list tree model for you to use.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CustomList *
|
|
custom_list_new (void)
|
|
{
|
|
return (CustomList *) g_object_new (CUSTOM_TYPE_LIST, NULL);
|
|
}
|
|
|
|
void
|
|
custom_list_append (CustomList * custom_list, chanlistrow * newrecord)
|
|
{
|
|
GtkTreeIter iter;
|
|
GtkTreePath *path;
|
|
gulong newsize;
|
|
guint pos;
|
|
|
|
if (custom_list->num_rows >= custom_list->num_alloc)
|
|
{
|
|
custom_list->num_alloc += 64;
|
|
newsize = custom_list->num_alloc * sizeof (chanlistrow *);
|
|
custom_list->rows = g_realloc (custom_list->rows, newsize);
|
|
}
|
|
|
|
/* TODO: Binary search insert? */
|
|
|
|
pos = custom_list->num_rows;
|
|
custom_list->rows[pos] = newrecord;
|
|
custom_list->num_rows++;
|
|
newrecord->pos = pos;
|
|
|
|
/* inform the tree view and other interested objects
|
|
* (e.g. tree row references) that we have inserted
|
|
* a new row, and where it was inserted */
|
|
|
|
path = gtk_tree_path_new ();
|
|
gtk_tree_path_append_index (path, newrecord->pos);
|
|
/* custom_list_get_iter(GTK_TREE_MODEL(custom_list), &iter, path);*/
|
|
iter.user_data = newrecord;
|
|
gtk_tree_model_row_inserted (GTK_TREE_MODEL (custom_list), path, &iter);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
void
|
|
custom_list_resort (CustomList * custom_list)
|
|
{
|
|
GtkTreePath *path;
|
|
gint *neworder, i;
|
|
|
|
if (custom_list->num_rows < 2)
|
|
return;
|
|
|
|
/* resort */
|
|
g_qsort_with_data (custom_list->rows,
|
|
custom_list->num_rows,
|
|
sizeof (chanlistrow *),
|
|
(GCompareDataFunc) custom_list_qsort_compare_func,
|
|
custom_list);
|
|
|
|
/* let other objects know about the new order */
|
|
neworder = malloc (sizeof (gint) * custom_list->num_rows);
|
|
|
|
for (i = custom_list->num_rows - 1; i >= 0; i--)
|
|
{
|
|
/* Note that the API reference might be wrong about
|
|
* this, see bug number 124790 on bugs.gnome.org.
|
|
* Both will work, but one will give you 'jumpy'
|
|
* selections after row reordering. */
|
|
/* neworder[(custom_list->rows[i])->pos] = i; */
|
|
neworder[i] = (custom_list->rows[i])->pos;
|
|
(custom_list->rows[i])->pos = i;
|
|
}
|
|
|
|
path = gtk_tree_path_new ();
|
|
gtk_tree_model_rows_reordered (GTK_TREE_MODEL (custom_list), path, NULL,
|
|
neworder);
|
|
gtk_tree_path_free (path);
|
|
free (neworder);
|
|
}
|
|
|
|
void
|
|
custom_list_clear (CustomList * custom_list)
|
|
{
|
|
int i, max = custom_list->num_rows - 1;
|
|
GtkTreePath *path;
|
|
|
|
for (i = max; i >= 0; i--)
|
|
{
|
|
path = gtk_tree_path_new ();
|
|
gtk_tree_path_append_index (path, custom_list->rows[i]->pos);
|
|
gtk_tree_model_row_deleted (GTK_TREE_MODEL (custom_list), path);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
custom_list->num_rows = 0;
|
|
custom_list->num_alloc = 0;
|
|
|
|
g_free (custom_list->rows);
|
|
custom_list->rows = NULL;
|
|
}
|