477 lines
16 KiB
C
477 lines
16 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* pikaenumwidgets.c
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* Copyright (C) 2002-2004 Sven Neumann <sven@gimp.org>
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libpikabase/pikabase.h"
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#include "pikawidgetstypes.h"
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#include "pikaenumwidgets.h"
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#include "pikaframe.h"
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#include "pikahelpui.h"
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/**
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* SECTION: pikaenumwidgets
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* @title: PikaEnumWidgets
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* @short_description: A set of utility functions to create widgets
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* based on enums.
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*
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* A set of utility functions to create widgets based on enums.
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**/
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/**
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* pika_enum_radio_box_new:
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* @enum_type: the #GType of an enum.
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Creates a new group of #GtkRadioButtons representing the enum
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* values. A group of radiobuttons is a good way to represent enums
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* with up to three or four values. Often it is better to use a
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* #PikaEnumComboBox instead.
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*
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* Returns: (transfer full): a new #GtkBox holding a group of #GtkRadioButtons.
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*
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* Since: 2.4
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**/
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GtkWidget *
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pika_enum_radio_box_new (GType enum_type,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GEnumClass *enum_class;
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GtkWidget *vbox;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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enum_class = g_type_class_ref (enum_type);
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vbox = pika_enum_radio_box_new_with_range (enum_type,
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enum_class->minimum,
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enum_class->maximum,
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callback, callback_data,
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callback_data_destroy,
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first_button);
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g_type_class_unref (enum_class);
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return vbox;
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}
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/**
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* pika_enum_radio_box_new_with_range:
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* @minimum: the minimum enum value
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* @maximum: the maximum enum value
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* @enum_type: the #GType of an enum.
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Just like pika_enum_radio_box_new(), this function creates a group
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* of radio buttons, but additionally it supports limiting the range
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* of available enum values.
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*
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* Returns: (transfer full): a new vertical #GtkBox holding a group of
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* #GtkRadioButtons
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*
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* Since: 2.4
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**/
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GtkWidget *
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pika_enum_radio_box_new_with_range (GType enum_type,
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gint minimum,
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gint maximum,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GtkWidget *vbox;
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GtkWidget *button;
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GEnumClass *enum_class;
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GEnumValue *value;
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GSList *group = NULL;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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enum_class = g_type_class_ref (enum_type);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 1);
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g_object_weak_ref (G_OBJECT (vbox),
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(GWeakNotify) g_type_class_unref, enum_class);
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if (callback_data_destroy)
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g_object_weak_ref (G_OBJECT (vbox),
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(GWeakNotify) callback_data_destroy, callback_data);
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if (first_button)
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*first_button = NULL;
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for (value = enum_class->values; value->value_name; value++)
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{
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const gchar *desc;
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if (value->value < minimum || value->value > maximum)
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continue;
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desc = pika_enum_value_get_desc (enum_class, value);
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button = gtk_radio_button_new_with_mnemonic (group, desc);
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if (first_button && *first_button == NULL)
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*first_button = button;
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group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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gtk_widget_show (button);
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g_object_set_data (G_OBJECT (button), "pika-item-data",
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GINT_TO_POINTER (value->value));
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if (callback)
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g_signal_connect (button, "toggled",
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callback,
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callback_data);
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}
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return vbox;
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}
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/**
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* pika_enum_radio_frame_new:
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* @enum_type: the #GType of an enum.
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* @label_widget: (nullable): a #GtkWidget to use as label for the frame
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* that will hold the radio box.
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Calls pika_enum_radio_box_new() and puts the resulting vbox into a
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* #GtkFrame.
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*
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* Returns: (transfer full): a new #GtkFrame holding a group of #GtkRadioButtons.
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*
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* Since: 2.4
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**/
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GtkWidget *
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pika_enum_radio_frame_new (GType enum_type,
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GtkWidget *label_widget,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GtkWidget *frame;
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GtkWidget *radio_box;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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g_return_val_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget),
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NULL);
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frame = pika_frame_new (NULL);
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if (label_widget)
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{
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gtk_frame_set_label_widget (GTK_FRAME (frame), label_widget);
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gtk_widget_show (label_widget);
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}
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radio_box = pika_enum_radio_box_new (enum_type,
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callback, callback_data,
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callback_data_destroy,
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first_button);
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gtk_container_add (GTK_CONTAINER (frame), radio_box);
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gtk_widget_show (radio_box);
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return frame;
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}
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/**
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* pika_enum_radio_frame_new_with_range:
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* @enum_type: the #GType of an enum.
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* @minimum: the minimum enum value
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* @maximum: the maximum enum value
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* @label_widget: (nullable): a widget to put into the frame that will hold the radio box.
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Calls pika_enum_radio_box_new_with_range() and puts the resulting
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* vertical box into a #GtkFrame.
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*
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* Returns: (transfer full): a new #GtkFrame holding a group of #GtkRadioButtons.
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*
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* Since: 2.4
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**/
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GtkWidget *
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pika_enum_radio_frame_new_with_range (GType enum_type,
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gint minimum,
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gint maximum,
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GtkWidget *label_widget,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GtkWidget *frame;
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GtkWidget *radio_box;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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g_return_val_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget),
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NULL);
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frame = pika_frame_new (NULL);
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if (label_widget)
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{
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gtk_frame_set_label_widget (GTK_FRAME (frame), label_widget);
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gtk_widget_show (label_widget);
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}
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radio_box = pika_enum_radio_box_new_with_range (enum_type,
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minimum,
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maximum,
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callback, callback_data,
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callback_data_destroy,
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first_button);
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gtk_container_add (GTK_CONTAINER (frame), radio_box);
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gtk_widget_show (radio_box);
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return frame;
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}
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/**
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* pika_enum_icon_box_new:
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* @enum_type: the #GType of an enum.
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* @icon_prefix: the prefix of the group of icon names to use.
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* @icon_size: the icon size for the icons
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Creates a horizontal box of radio buttons with named icons. The
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* icon name for each icon is created by appending the enum_value's
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* nick to the given @icon_prefix.
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*
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* Returns: (transfer full): a new horizontal #GtkBox holding a group of #GtkRadioButtons.
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*
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* Since: 2.10
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**/
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GtkWidget *
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pika_enum_icon_box_new (GType enum_type,
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const gchar *icon_prefix,
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GtkIconSize icon_size,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GEnumClass *enum_class;
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GtkWidget *box;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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enum_class = g_type_class_ref (enum_type);
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box = pika_enum_icon_box_new_with_range (enum_type,
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enum_class->minimum,
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enum_class->maximum,
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icon_prefix, icon_size,
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callback, callback_data,
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callback_data_destroy,
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first_button);
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g_type_class_unref (enum_class);
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return box;
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}
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/**
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* pika_enum_icon_box_new_with_range:
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* @enum_type: the #GType of an enum.
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* @minimum: the minumim enum value
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* @maximum: the maximum enum value
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* @icon_prefix: the prefix of the group of icon names to use.
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* @icon_size: the icon size for the icons
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* @callback: (nullable): a callback to connect to the "toggled" signal of each
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* #GtkRadioButton that is created.
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* @callback_data: data to pass to the @callback.
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* @callback_data_destroy: Destroy function for @callback_data.
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* @first_button: (out) (optional) (transfer none):
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* Returns the first button in the created group.
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*
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* Just like pika_enum_icon_box_new(), this function creates a group
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* of radio buttons, but additionally it supports limiting the range
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* of available enum values.
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*
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* Returns: (transfer full): a new horizontal #GtkBox holding a group of #GtkRadioButtons.
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*
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* Since: 2.10
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**/
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GtkWidget *
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pika_enum_icon_box_new_with_range (GType enum_type,
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gint minimum,
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gint maximum,
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const gchar *icon_prefix,
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GtkIconSize icon_size,
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GCallback callback,
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gpointer callback_data,
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GDestroyNotify callback_data_destroy,
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GtkWidget **first_button)
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{
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GtkWidget *hbox;
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GtkWidget *button;
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GtkWidget *image;
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GEnumClass *enum_class;
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GEnumValue *value;
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gchar *icon_name;
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GSList *group = NULL;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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g_return_val_if_fail (icon_prefix != NULL, NULL);
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enum_class = g_type_class_ref (enum_type);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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g_object_weak_ref (G_OBJECT (hbox),
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(GWeakNotify) g_type_class_unref, enum_class);
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if (callback_data_destroy)
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g_object_weak_ref (G_OBJECT (hbox),
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(GWeakNotify) callback_data_destroy, callback_data);
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if (first_button)
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*first_button = NULL;
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for (value = enum_class->values; value->value_name; value++)
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{
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if (value->value < minimum || value->value > maximum)
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continue;
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button = gtk_radio_button_new (group);
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gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
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gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
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if (first_button && *first_button == NULL)
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*first_button = button;
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icon_name = g_strconcat (icon_prefix, "-", value->value_nick, NULL);
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image = gtk_image_new_from_icon_name (icon_name, icon_size);
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g_free (icon_name);
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if (image)
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{
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gtk_container_add (GTK_CONTAINER (button), image);
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gtk_widget_show (image);
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}
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pika_help_set_help_data (button,
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pika_enum_value_get_desc (enum_class, value),
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NULL);
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group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
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gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
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gtk_widget_show (button);
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g_object_set_data (G_OBJECT (button), "pika-item-data",
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GINT_TO_POINTER (value->value));
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if (callback)
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g_signal_connect (button, "toggled",
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callback,
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callback_data);
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}
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return hbox;
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}
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/**
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* pika_enum_icon_box_set_child_padding:
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* @icon_box: an icon box widget
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* @xpad: horizontal padding
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* @ypad: vertical padding
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*
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* Sets the padding of all buttons in a box created by
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* pika_enum_icon_box_new().
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*
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* Since: 2.10
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**/
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void
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pika_enum_icon_box_set_child_padding (GtkWidget *icon_box,
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gint xpad,
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gint ypad)
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{
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GList *children;
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GList *list;
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g_return_if_fail (GTK_IS_CONTAINER (icon_box));
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children = gtk_container_get_children (GTK_CONTAINER (icon_box));
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for (list = children; list; list = g_list_next (list))
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{
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GtkWidget *child = gtk_bin_get_child (GTK_BIN (list->data));
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gint start, end;
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gint top, bottom;
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g_object_get (child,
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"margin-start", &start,
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"margin-end", &end,
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"margin-top", &top,
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"margin-bottom", &bottom,
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NULL);
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g_object_set (child,
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"margin-start", xpad < 0 ? start : xpad,
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"margin-end", xpad < 0 ? end : xpad,
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"margin-top", ypad < 0 ? top : ypad,
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"margin-bottom", ypad < 0 ? bottom : ypad,
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NULL);
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}
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g_list_free (children);
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}
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