143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/*
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* Copyright (C) 2012 - Juan Ferrer Toribio
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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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#include "vn-check.h"
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#include <db/db.h>
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/**
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* SECTION:vn-check
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* @Short_description: a checkbox widget
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* @Title: VnCheck
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* @See_also: #VnField
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* @Image: check.png
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*
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* A checkbox widget to use in boolean fields.
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*/
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G_DEFINE_TYPE (VnCheck, vn_check, VN_TYPE_FIELD);
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/**
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* vn_check_new:
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*
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* Creates a new #VnCheck
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*
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* Return value: a #VnCheck
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**/
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VnField * vn_check_new ()
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{
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return VN_FIELD (g_object_new (VN_TYPE_CHECK, NULL));
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private
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static void vn_check_changed (VnCheck * obj)
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{
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GValue value = {0};
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if (!gtk_toggle_button_get_inconsistent (obj->button))
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{
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g_value_init (&value, G_TYPE_BOOLEAN);
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g_value_set_boolean (&value, gtk_toggle_button_get_active (obj->button));
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}
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else
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g_value_init (&value, GVN_TYPE_NULL);
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VN_FIELD_GET_CLASS (obj)->value_changed (VN_FIELD (obj), &value);
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g_value_unset (&value);
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}
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static void vn_check_on_toggled (GtkToggleButton * button, VnCheck * obj)
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{
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gtk_toggle_button_set_inconsistent (button, FALSE);
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vn_check_changed (obj);
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}
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static gboolean vn_check_on_secondary_button (GtkToggleButton * button, GdkEventButton * event, VnField * obj)
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{
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if (event->type != GDK_BUTTON_RELEASE || event->button != 3 || !vn_field_get_null (obj))
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return FALSE;
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if (gtk_toggle_button_get_inconsistent (button))
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gtk_toggle_button_set_inconsistent (button, FALSE);
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else
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gtk_toggle_button_set_inconsistent (button, TRUE);
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g_signal_handlers_block_by_func (button, vn_check_on_toggled, obj);
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gtk_toggle_button_set_active (button, FALSE);
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g_signal_handlers_unblock_by_func (button, vn_check_on_toggled, obj);
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vn_check_changed (VN_CHECK (obj));
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return FALSE;
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}
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static void vn_check_set_value (VnCheck * obj, const GValue * value)
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{
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GValue new_value = {0};
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if (!gvn_value_is_null (value))
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{
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g_value_init (&new_value, G_TYPE_BOOLEAN);
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g_value_transform (value, &new_value);
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}
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else
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g_value_init (&new_value, GVN_TYPE_NULL);
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g_signal_handlers_block_by_func (obj->button, vn_check_on_toggled, obj);
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if (!gvn_value_is_null (&new_value))
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{
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gtk_toggle_button_set_inconsistent (obj->button, FALSE);
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gtk_toggle_button_set_active (obj->button,
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g_value_get_boolean (&new_value));
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}
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else
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{
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gtk_toggle_button_set_inconsistent (obj->button, TRUE);
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gtk_toggle_button_set_active (obj->button, FALSE);
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}
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g_signal_handlers_unblock_by_func (obj->button, vn_check_on_toggled, obj);
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g_value_unset (&new_value);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
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static void vn_check_init (VnCheck * obj)
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{
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obj->button = GTK_TOGGLE_BUTTON (gtk_check_button_new ());
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gtk_button_set_use_underline (GTK_BUTTON (obj->button), TRUE);
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g_object_connect (obj->button
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,"signal::toggled", vn_check_on_toggled, obj
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,"signal::button-release-event", vn_check_on_secondary_button, obj
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,NULL
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);
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gtk_container_add (GTK_CONTAINER (obj), GTK_WIDGET (obj->button));
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VN_FIELD (obj)->field = GTK_WIDGET (obj->button);
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}
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static void vn_check_finalize (VnCheck * obj)
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{
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G_OBJECT_CLASS (vn_check_parent_class)->finalize (G_OBJECT (obj));
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}
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static void vn_check_class_init (VnCheckClass * klass)
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{
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G_OBJECT_CLASS (klass)->finalize = (GObjectFinalizeFunc) vn_check_finalize;
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VN_FIELD_CLASS (klass)->set_value = (VnFieldSetValueFunc) vn_check_set_value;
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}
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