gtk2/gtk/inspector/tree-data.c
Matthias Clasen af30a7fe06 inspector: Dispose tree data properly
Another place where we were leaking children.
2020-07-17 22:54:19 -04:00

203 lines
5.4 KiB
C

/*
* Copyright (c) 2014, 2020 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#include "tree-data.h"
#include "object-tree.h"
#include "gtktreeview.h"
#include "gtkcellrenderertext.h"
#include "gtktogglebutton.h"
#include "gtklabel.h"
#include "gtkstack.h"
#include "gtkboxlayout.h"
#include "gtkorientable.h"
struct _GtkInspectorTreeData
{
GtkWidget parent_instance;
GtkTreeModel *object;
GtkTreeModel *types;
GtkTreeView *view;
GtkWidget *object_title;
gboolean show_data;
};
typedef struct _GtkInspectorTreeDataClass GtkInspectorTreeDataClass;
struct _GtkInspectorTreeDataClass
{
GtkWidgetClass parent_class;
};
G_DEFINE_TYPE (GtkInspectorTreeData, gtk_inspector_tree_data, GTK_TYPE_WIDGET)
static void
gtk_inspector_tree_data_init (GtkInspectorTreeData *sl)
{
gtk_widget_init_template (GTK_WIDGET (sl));
gtk_orientable_set_orientation (GTK_ORIENTABLE (gtk_widget_get_layout_manager (GTK_WIDGET (sl))),
GTK_ORIENTATION_VERTICAL);
}
static void
cell_data_func (GtkTreeViewColumn *col,
GtkCellRenderer *cell,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
gint num;
GValue gvalue = { 0, };
gchar *value;
num = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (col), "num"));
gtk_tree_model_get_value (model, iter, num, &gvalue);
value = g_strdup_value_contents (&gvalue);
g_object_set (cell, "text", value ? value : "", NULL);
g_free (value);
g_value_unset (&gvalue);
}
static void
add_columns (GtkInspectorTreeData *sl)
{
gint n_columns;
GtkCellRenderer *cell;
GType type;
gchar *title;
GtkTreeViewColumn *col;
gint i;
n_columns = gtk_tree_model_get_n_columns (sl->object);
for (i = 0; i < n_columns; i++)
{
cell = gtk_cell_renderer_text_new ();
type = gtk_tree_model_get_column_type (sl->object, i);
title = g_strdup_printf ("%d: %s", i, g_type_name (type));
col = gtk_tree_view_column_new_with_attributes (title, cell, NULL);
g_object_set_data (G_OBJECT (col), "num", GINT_TO_POINTER (i));
gtk_tree_view_column_set_cell_data_func (col, cell, cell_data_func, sl, NULL);
gtk_tree_view_append_column (sl->view, col);
g_free (title);
}
}
static void
show_types (GtkInspectorTreeData *sl)
{
gtk_tree_view_set_model (sl->view, NULL);
sl->show_data = FALSE;
}
static void
show_data (GtkInspectorTreeData *sl)
{
gtk_tree_view_set_model (sl->view, sl->object);
sl->show_data = TRUE;
}
static void
clear_view (GtkInspectorTreeData *sl)
{
gtk_tree_view_set_model (sl->view, NULL);
while (gtk_tree_view_get_n_columns (sl->view) > 0)
gtk_tree_view_remove_column (sl->view,
gtk_tree_view_get_column (sl->view, 0));
}
void
gtk_inspector_tree_data_set_object (GtkInspectorTreeData *sl,
GObject *object)
{
GtkWidget *stack;
GtkStackPage *page;
gchar *title;
stack = gtk_widget_get_parent (GTK_WIDGET (sl));
page = gtk_stack_get_page (GTK_STACK (stack), GTK_WIDGET (sl));
clear_view (sl);
sl->object = NULL;
sl->show_data = FALSE;
if (!GTK_IS_TREE_MODEL (object))
{
g_object_set (page, "visible", FALSE, NULL);
return;
}
title = gtk_inspector_get_object_title (object);
gtk_label_set_label (GTK_LABEL (sl->object_title), title);
g_free (title);
g_object_set (page, "visible", TRUE, NULL);
sl->object = GTK_TREE_MODEL (object);
add_columns (sl);
show_types (sl);
}
static void
toggle_show (GtkToggleButton *button,
GtkInspectorTreeData *sl)
{
if (gtk_toggle_button_get_active (button) == sl->show_data)
return;
if (gtk_toggle_button_get_active (button))
show_data (sl);
else
show_types (sl);
}
static void
dispose (GObject *object)
{
GtkInspectorTreeData *sl = GTK_INSPECTOR_TREE_DATA (object);
GtkWidget *child;
while ((child = gtk_widget_get_first_child (GTK_WIDGET (sl))))
gtk_widget_unparent (child);
G_OBJECT_CLASS (gtk_inspector_tree_data_parent_class)->dispose (object);
}
static void
gtk_inspector_tree_data_class_init (GtkInspectorTreeDataClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = dispose;
gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/inspector/tree-data.ui");
gtk_widget_class_bind_template_child (widget_class, GtkInspectorTreeData, view);
gtk_widget_class_bind_template_child (widget_class, GtkInspectorTreeData, object_title);
gtk_widget_class_bind_template_callback (widget_class, toggle_show);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
}
// vim: set et sw=2 ts=2: