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https://github.com/varun-r-mallya/sysprof.git
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7720f690e0
This is meant to be a simple index helper where we already have a bitset created for a low-cardinality index. We can reuse the read-only bitset and filter on the document itself. This index will keep a reference on the document so it's lifetime persists.
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/* sysprof-document-bitset-index.c
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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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 3 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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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "config.h"
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#include "sysprof-document-bitset-index-private.h"
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struct _SysprofDocumentBitsetIndex
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{
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GObject parent_instance;
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GListModel *model;
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GtkBitset *bitset;
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};
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static GType
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sysprof_document_bitset_index_get_item_type (GListModel *model)
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{
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SysprofDocumentBitsetIndex *self = SYSPROF_DOCUMENT_BITSET_INDEX (model);
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if (self->model != NULL)
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return g_list_model_get_item_type (self->model);
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return G_TYPE_OBJECT;
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}
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static guint
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sysprof_document_bitset_index_get_n_items (GListModel *model)
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{
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SysprofDocumentBitsetIndex *self = SYSPROF_DOCUMENT_BITSET_INDEX (model);
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if (self->bitset != NULL)
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return gtk_bitset_get_size (self->bitset);
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return 0;
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}
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static gpointer
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sysprof_document_bitset_index_get_item (GListModel *model,
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guint position)
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{
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SysprofDocumentBitsetIndex *self = SYSPROF_DOCUMENT_BITSET_INDEX (model);
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if (self->model == NULL || self->bitset == NULL)
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return NULL;
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if (position >= gtk_bitset_get_size (self->bitset))
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return NULL;
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return g_list_model_get_item (self->model,
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gtk_bitset_get_nth (self->bitset, position));
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}
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static void
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list_model_iface_init (GListModelInterface *iface)
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{
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iface->get_item = sysprof_document_bitset_index_get_item;
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iface->get_item_type = sysprof_document_bitset_index_get_item_type;
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iface->get_n_items = sysprof_document_bitset_index_get_n_items;
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}
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G_DEFINE_FINAL_TYPE_WITH_CODE (SysprofDocumentBitsetIndex, sysprof_document_bitset_index, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
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static void
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sysprof_document_bitset_index_dispose (GObject *object)
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{
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SysprofDocumentBitsetIndex *self = (SysprofDocumentBitsetIndex *)object;
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g_clear_pointer (&self->bitset, gtk_bitset_unref);
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g_clear_object (&self->model);
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G_OBJECT_CLASS (sysprof_document_bitset_index_parent_class)->dispose (object);
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}
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static void
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sysprof_document_bitset_index_class_init (SysprofDocumentBitsetIndexClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = sysprof_document_bitset_index_dispose;
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}
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static void
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sysprof_document_bitset_index_init (SysprofDocumentBitsetIndex *self)
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{
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}
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GListModel *
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_sysprof_document_bitset_index_new (GListModel *model,
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GtkBitset *bitset)
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{
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SysprofDocumentBitsetIndex *self;
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g_return_val_if_fail (G_IS_LIST_MODEL (model), NULL);
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g_return_val_if_fail (bitset != NULL, NULL);
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self = g_object_new (SYSPROF_TYPE_DOCUMENT_BITSET_INDEX, NULL);
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self->model = g_object_ref (model);
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self->bitset = gtk_bitset_ref (bitset);
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return G_LIST_MODEL (self);
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}
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