forked from AuroraMiddleware/gtk
971a277419
Instead of having old and new style, now have a GtkCssStyleChange opaque object that will compute the changes you are interested in for you. This simplifies change signal handlers quite a bit and avoids lots of repeated computation in every signal handler.
633 lines
18 KiB
C
633 lines
18 KiB
C
/* gtktreestore.c
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* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtktreemodelcssnode.h"
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#include "gtk/gtkcsstransientnodeprivate.h"
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struct _GtkTreeModelCssNodePrivate
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{
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GtkTreeModelCssNodeGetFunc get_func;
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gint n_columns;
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GType *column_types;
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GtkCssNode *root;
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};
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static void gtk_tree_model_css_node_connect_node (GtkTreeModelCssNode *model,
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GtkCssNode *node,
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gboolean emit_signal);
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static void gtk_tree_model_css_node_disconnect_node (GtkTreeModelCssNode *model,
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GtkCssNode *node,
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gboolean emit_signal,
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GtkCssNode *parent,
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GtkCssNode *previous);
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static void gtk_tree_model_css_node_tree_model_init (GtkTreeModelIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkTreeModelCssNode, gtk_tree_model_css_node, G_TYPE_OBJECT,
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G_ADD_PRIVATE (GtkTreeModelCssNode)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
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gtk_tree_model_css_node_tree_model_init))
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static GtkCssNode *
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get_nth_child (GtkCssNode *node,
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gint i)
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{
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for (node = gtk_css_node_get_first_child (node);
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node != NULL && i > 0;
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node = gtk_css_node_get_next_sibling (node))
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i--;
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return node;
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}
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static int
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get_node_index (GtkCssNode *node)
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{
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int result = 0;
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while ((node = gtk_css_node_get_previous_sibling (node)))
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result++;
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return result;
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}
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static GtkTreeModelFlags
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gtk_tree_model_css_node_get_flags (GtkTreeModel *tree_model)
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{
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return GTK_TREE_MODEL_ITERS_PERSIST;
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}
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static gint
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gtk_tree_model_css_node_get_n_columns (GtkTreeModel *tree_model)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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return priv->n_columns;
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}
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static GType
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gtk_tree_model_css_node_get_column_type (GtkTreeModel *tree_model,
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gint column)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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g_return_val_if_fail (column < priv->n_columns, G_TYPE_INVALID);
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return priv->column_types[column];
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}
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static gboolean
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gtk_tree_model_css_node_get_iter (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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GtkTreePath *path)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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int *indices;
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int depth, i;
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if (priv->root == NULL)
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return FALSE;
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indices = gtk_tree_path_get_indices (path);
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depth = gtk_tree_path_get_depth (path);
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if (depth < 1 || indices[0] != 0)
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return FALSE;
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node = priv->root;
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for (i = 1; i < depth; i++)
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{
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node = get_nth_child (node, indices[i]);
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if (node == NULL)
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return FALSE;
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}
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static GtkTreePath *
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gtk_tree_model_css_node_get_path (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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GtkTreePath *path;
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g_return_val_if_fail (priv->root != NULL, NULL);
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path = gtk_tree_path_new ();
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter);
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while (node != priv->root)
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{
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gtk_tree_path_prepend_index (path, get_node_index (node));
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node = gtk_css_node_get_parent (node);
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}
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gtk_tree_path_prepend_index (path, 0);
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return path;
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}
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static void
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gtk_tree_model_css_node_get_value (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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gint column,
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GValue *value)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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g_value_init (value, priv->column_types[column]);
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priv->get_func (nodemodel,
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gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter),
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column,
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value);
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}
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static gboolean
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gtk_tree_model_css_node_iter_next (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter);
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if (node == priv->root)
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return FALSE;
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node = gtk_css_node_get_next_sibling (node);
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if (node == NULL)
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return FALSE;
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static gboolean
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gtk_tree_model_css_node_iter_previous (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter);
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if (node == priv->root)
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return FALSE;
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node = gtk_css_node_get_previous_sibling (node);
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if (node == NULL)
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return FALSE;
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static gboolean
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gtk_tree_model_css_node_iter_children (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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GtkTreeIter *parent)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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if (parent == NULL)
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{
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node = priv->root;
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}
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else
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{
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, parent);
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node = gtk_css_node_get_first_child (node);
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}
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if (node == NULL)
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return FALSE;
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static gboolean
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gtk_tree_model_css_node_iter_has_child (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkCssNode *node;
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter);
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return gtk_css_node_get_first_child (node) != NULL;
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}
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static gint
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gtk_tree_model_css_node_iter_n_children (GtkTreeModel *tree_model,
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GtkTreeIter *iter)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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if (iter == NULL)
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return priv->root ? 1 : 0;
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, iter);
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node = gtk_css_node_get_last_child (node);
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if (node == NULL)
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return 0;
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return get_node_index (node) + 1;
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}
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static gboolean
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gtk_tree_model_css_node_iter_nth_child (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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GtkTreeIter *parent,
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gint n)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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if (parent == NULL)
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{
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if (n > 0)
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return FALSE;
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node = priv->root;
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}
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else
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{
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, parent);
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node = get_nth_child (node, n);
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}
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if (node == NULL)
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return FALSE;
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static gboolean
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gtk_tree_model_css_node_iter_parent (GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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GtkTreeIter *child)
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{
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GtkTreeModelCssNode *nodemodel = GTK_TREE_MODEL_CSS_NODE (tree_model);
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GtkTreeModelCssNodePrivate *priv = nodemodel->priv;
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GtkCssNode *node;
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node = gtk_tree_model_css_node_get_node_from_iter (nodemodel, child);
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if (node == priv->root)
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return FALSE;
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node = gtk_css_node_get_parent (node);
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gtk_tree_model_css_node_get_iter_from_node (nodemodel, iter, node);
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return TRUE;
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}
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static void
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gtk_tree_model_css_node_tree_model_init (GtkTreeModelIface *iface)
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{
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iface->get_flags = gtk_tree_model_css_node_get_flags;
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iface->get_n_columns = gtk_tree_model_css_node_get_n_columns;
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iface->get_column_type = gtk_tree_model_css_node_get_column_type;
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iface->get_iter = gtk_tree_model_css_node_get_iter;
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iface->get_path = gtk_tree_model_css_node_get_path;
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iface->get_value = gtk_tree_model_css_node_get_value;
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iface->iter_next = gtk_tree_model_css_node_iter_next;
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iface->iter_previous = gtk_tree_model_css_node_iter_previous;
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iface->iter_children = gtk_tree_model_css_node_iter_children;
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iface->iter_has_child = gtk_tree_model_css_node_iter_has_child;
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iface->iter_n_children = gtk_tree_model_css_node_iter_n_children;
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iface->iter_nth_child = gtk_tree_model_css_node_iter_nth_child;
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iface->iter_parent = gtk_tree_model_css_node_iter_parent;
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}
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static void
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gtk_tree_model_css_node_finalize (GObject *object)
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{
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GtkTreeModelCssNode *model = GTK_TREE_MODEL_CSS_NODE (object);
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GtkTreeModelCssNodePrivate *priv = model->priv;
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if (priv->root)
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{
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gtk_tree_model_css_node_disconnect_node (model, priv->root, FALSE, NULL, NULL);
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priv->root = NULL;
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}
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G_OBJECT_CLASS (gtk_tree_model_css_node_parent_class)->finalize (object);
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}
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static void
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gtk_tree_model_css_node_class_init (GtkTreeModelCssNodeClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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object_class->finalize = gtk_tree_model_css_node_finalize;
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}
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static void
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gtk_tree_model_css_node_init (GtkTreeModelCssNode *nodemodel)
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{
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nodemodel->priv = gtk_tree_model_css_node_get_instance_private (nodemodel);
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}
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GtkTreeModel *
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gtk_tree_model_css_node_new (GtkTreeModelCssNodeGetFunc get_func,
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gint n_columns,
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...)
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{
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GtkTreeModel *result;
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va_list args;
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GType *types;
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gint i;
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g_return_val_if_fail (get_func != NULL, NULL);
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g_return_val_if_fail (n_columns > 0, NULL);
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types = g_new (GType, n_columns);
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va_start (args, n_columns);
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for (i = 0; i < n_columns; i++)
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{
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types[i] = va_arg (args, GType);
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}
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va_end (args);
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result = gtk_tree_model_css_node_newv (get_func, n_columns, types);
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g_free (types);
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return result;
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}
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GtkTreeModel *
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gtk_tree_model_css_node_newv (GtkTreeModelCssNodeGetFunc get_func,
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gint n_columns,
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GType *types)
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{
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GtkTreeModelCssNode *result;
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GtkTreeModelCssNodePrivate *priv;
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g_return_val_if_fail (get_func != NULL, NULL);
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g_return_val_if_fail (n_columns > 0, NULL);
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g_return_val_if_fail (types != NULL, NULL);
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result = g_object_new (GTK_TYPE_TREE_MODEL_CSS_NODE, NULL);
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priv = result->priv;
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priv->get_func = get_func;
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priv->n_columns = n_columns;
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priv->column_types = g_memdup (types, sizeof (GType) * n_columns);
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return GTK_TREE_MODEL (result);
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}
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static void
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child_added_cb (GtkCssNode *node,
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GtkCssNode *child,
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GtkCssNode *previous,
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GtkTreeModelCssNode *model)
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{
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gtk_tree_model_css_node_connect_node (model, child, TRUE);
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}
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static void
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child_removed_cb (GtkCssNode *node,
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GtkCssNode *child,
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GtkCssNode *previous,
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GtkTreeModelCssNode *model)
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{
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gtk_tree_model_css_node_disconnect_node (model, child, TRUE, node, previous);
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}
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static void
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notify_cb (GtkCssNode *node,
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GParamSpec *pspec,
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GtkTreeModelCssNode *model)
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{
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GtkTreeIter iter;
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GtkTreePath *path;
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gtk_tree_model_css_node_get_iter_from_node (model, &iter, node);
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path = gtk_tree_model_css_node_get_path (GTK_TREE_MODEL (model), &iter);
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gtk_tree_model_row_changed (GTK_TREE_MODEL (model), path, &iter);
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gtk_tree_path_free (path);
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}
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static void
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style_changed_cb (GtkCssNode *node,
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GtkCssStyleChange *change,
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GtkTreeModelCssNode *model)
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{
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GtkTreeIter iter;
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GtkTreePath *path;
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gtk_tree_model_css_node_get_iter_from_node (model, &iter, node);
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path = gtk_tree_model_css_node_get_path (GTK_TREE_MODEL (model), &iter);
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gtk_tree_model_row_changed (GTK_TREE_MODEL (model), path, &iter);
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gtk_tree_path_free (path);
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}
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static void
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gtk_tree_model_css_node_connect_node (GtkTreeModelCssNode *model,
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GtkCssNode *node,
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gboolean emit_signal)
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{
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GtkCssNode *child;
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if (GTK_IS_CSS_TRANSIENT_NODE (node))
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return;
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g_object_ref (node);
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g_signal_connect_after (node, "node-added", G_CALLBACK (child_added_cb), model);
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g_signal_connect_after (node, "node-removed", G_CALLBACK (child_removed_cb), model);
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g_signal_connect_after (node, "notify", G_CALLBACK (notify_cb), model);
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g_signal_connect_after (node, "style-changed", G_CALLBACK (style_changed_cb), model);
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for (child = gtk_css_node_get_first_child (node);
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child;
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child = gtk_css_node_get_next_sibling (child))
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{
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gtk_tree_model_css_node_connect_node (model, child, FALSE);
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}
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if (emit_signal)
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{
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GtkTreeIter iter;
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GtkTreePath *path;
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|
|
if (node != model->priv->root &&
|
|
gtk_css_node_get_previous_sibling (node) == NULL &&
|
|
gtk_css_node_get_next_sibling (node) == NULL)
|
|
{
|
|
/* We're the first child of the parent */
|
|
gtk_tree_model_css_node_get_iter_from_node (model, &iter, gtk_css_node_get_parent (node));
|
|
path = gtk_tree_model_css_node_get_path (GTK_TREE_MODEL (model), &iter);
|
|
gtk_tree_model_row_has_child_toggled (GTK_TREE_MODEL (model), path, &iter);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
gtk_tree_model_css_node_get_iter_from_node (model, &iter, node);
|
|
path = gtk_tree_model_css_node_get_path (GTK_TREE_MODEL (model), &iter);
|
|
gtk_tree_model_row_inserted (GTK_TREE_MODEL (model), path, &iter);
|
|
if (gtk_css_node_get_first_child (node))
|
|
gtk_tree_model_row_has_child_toggled (GTK_TREE_MODEL (model), path, &iter);
|
|
|
|
gtk_tree_path_free (path);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_tree_model_css_node_disconnect_node (GtkTreeModelCssNode *model,
|
|
GtkCssNode *node,
|
|
gboolean emit_signal,
|
|
GtkCssNode *parent,
|
|
GtkCssNode *previous)
|
|
{
|
|
GtkCssNode *child;
|
|
|
|
if (GTK_IS_CSS_TRANSIENT_NODE (node))
|
|
return;
|
|
|
|
g_signal_handlers_disconnect_by_func (node, G_CALLBACK (child_added_cb), model);
|
|
g_signal_handlers_disconnect_by_func (node, G_CALLBACK (child_removed_cb), model);
|
|
g_signal_handlers_disconnect_by_func (node, G_CALLBACK (notify_cb), model);
|
|
g_signal_handlers_disconnect_by_func (node, G_CALLBACK (style_changed_cb), model);
|
|
|
|
for (child = gtk_css_node_get_first_child (node);
|
|
child;
|
|
child = gtk_css_node_get_next_sibling (child))
|
|
{
|
|
gtk_tree_model_css_node_disconnect_node (model, child, FALSE, NULL, NULL);
|
|
}
|
|
|
|
if (emit_signal)
|
|
{
|
|
GtkTreeIter iter;
|
|
GtkTreePath *path;
|
|
|
|
if (parent)
|
|
{
|
|
gtk_tree_model_css_node_get_iter_from_node (model, &iter, parent);
|
|
path = gtk_tree_model_css_node_get_path (GTK_TREE_MODEL (model), &iter);
|
|
}
|
|
else
|
|
{
|
|
path = gtk_tree_path_new ();
|
|
}
|
|
if (previous)
|
|
gtk_tree_path_append_index (path, get_node_index (previous) + 1);
|
|
else
|
|
gtk_tree_path_append_index (path, 0);
|
|
|
|
gtk_tree_model_row_deleted (GTK_TREE_MODEL (model), path);
|
|
|
|
if (parent && gtk_css_node_get_first_child (parent) == NULL)
|
|
{
|
|
gtk_tree_path_up (path);
|
|
gtk_tree_model_row_has_child_toggled (GTK_TREE_MODEL (model), path, &iter);
|
|
}
|
|
|
|
gtk_tree_path_free (path);
|
|
}
|
|
|
|
g_object_unref (node);
|
|
}
|
|
|
|
void
|
|
gtk_tree_model_css_node_set_root_node (GtkTreeModelCssNode *model,
|
|
GtkCssNode *node)
|
|
{
|
|
GtkTreeModelCssNodePrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_TREE_MODEL_CSS_NODE (model));
|
|
g_return_if_fail (node == NULL || GTK_IS_CSS_NODE (node));
|
|
|
|
priv = model->priv;
|
|
|
|
if (priv->root == node)
|
|
return;
|
|
|
|
if (priv->root)
|
|
{
|
|
gtk_tree_model_css_node_disconnect_node (model, priv->root, TRUE, NULL, NULL);
|
|
priv->root = NULL;
|
|
}
|
|
|
|
if (node)
|
|
{
|
|
priv->root = node;
|
|
gtk_tree_model_css_node_connect_node (model, node, TRUE);
|
|
}
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_tree_model_css_node_get_root_node (GtkTreeModelCssNode *model)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TREE_MODEL_CSS_NODE (model), NULL);
|
|
|
|
return model->priv->root;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_tree_model_css_node_get_node_from_iter (GtkTreeModelCssNode *model,
|
|
GtkTreeIter *iter)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TREE_MODEL_CSS_NODE (model), NULL);
|
|
g_return_val_if_fail (iter != NULL, NULL);
|
|
g_return_val_if_fail (iter->user_data == model, NULL);
|
|
g_return_val_if_fail (GTK_IS_CSS_NODE (iter->user_data2), NULL);
|
|
|
|
return iter->user_data2;
|
|
}
|
|
|
|
void
|
|
gtk_tree_model_css_node_get_iter_from_node (GtkTreeModelCssNode *model,
|
|
GtkTreeIter *iter,
|
|
GtkCssNode *node)
|
|
{
|
|
g_return_if_fail (GTK_IS_TREE_MODEL_CSS_NODE (model));
|
|
g_return_if_fail (iter != NULL);
|
|
g_return_if_fail (GTK_IS_CSS_NODE (node));
|
|
|
|
iter->user_data = model;
|
|
iter->user_data2 = node;
|
|
}
|