476 lines
14 KiB
C
476 lines
14 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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 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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* 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkbbox.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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enum {
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PROP_0,
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PROP_LAYOUT_STYLE
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};
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enum {
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CHILD_PROP_0,
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CHILD_PROP_SECONDARY
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};
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static void gtk_button_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_button_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_button_box_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_button_box_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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#define DEFAULT_CHILD_MIN_WIDTH 85
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#define DEFAULT_CHILD_MIN_HEIGHT 27
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#define DEFAULT_CHILD_IPAD_X 4
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#define DEFAULT_CHILD_IPAD_Y 0
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G_DEFINE_ABSTRACT_TYPE (GtkButtonBox, gtk_button_box, GTK_TYPE_BOX)
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static void
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gtk_button_box_class_init (GtkButtonBoxClass *class)
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{
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GtkWidgetClass *widget_class;
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GObjectClass *gobject_class;
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GtkContainerClass *container_class;
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gobject_class = G_OBJECT_CLASS (class);
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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gobject_class->set_property = gtk_button_box_set_property;
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gobject_class->get_property = gtk_button_box_get_property;
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container_class->set_child_property = gtk_button_box_set_child_property;
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container_class->get_child_property = gtk_button_box_get_child_property;
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/* FIXME we need to override the "spacing" property on GtkBox once
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* libgobject allows that.
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*/
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child-min-width",
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P_("Minimum child width"),
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P_("Minimum width of buttons inside the box"),
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0,
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G_MAXINT,
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DEFAULT_CHILD_MIN_WIDTH,
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GTK_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child-min-height",
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P_("Minimum child height"),
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P_("Minimum height of buttons inside the box"),
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0,
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G_MAXINT,
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DEFAULT_CHILD_MIN_HEIGHT,
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GTK_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child-internal-pad-x",
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P_("Child internal width padding"),
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P_("Amount to increase child's size on either side"),
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0,
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G_MAXINT,
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DEFAULT_CHILD_IPAD_X,
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GTK_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("child-internal-pad-y",
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P_("Child internal height padding"),
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P_("Amount to increase child's size on the top and bottom"),
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0,
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G_MAXINT,
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DEFAULT_CHILD_IPAD_Y,
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GTK_PARAM_READABLE));
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g_object_class_install_property (gobject_class,
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PROP_LAYOUT_STYLE,
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g_param_spec_enum ("layout-style",
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P_("Layout style"),
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P_("How to layout the buttons in the box. Possible values are default, spread, edge, start and end"),
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GTK_TYPE_BUTTON_BOX_STYLE,
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GTK_BUTTONBOX_DEFAULT_STYLE,
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GTK_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_SECONDARY,
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g_param_spec_boolean ("secondary",
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P_("Secondary"),
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P_("If TRUE, the child appears in a secondary group of children, suitable for, e.g., help buttons"),
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FALSE,
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GTK_PARAM_READWRITE));
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}
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static void
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gtk_button_box_init (GtkButtonBox *button_box)
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{
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GTK_BOX (button_box)->spacing = 0;
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button_box->child_min_width = GTK_BUTTONBOX_DEFAULT;
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button_box->child_min_height = GTK_BUTTONBOX_DEFAULT;
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button_box->child_ipad_x = GTK_BUTTONBOX_DEFAULT;
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button_box->child_ipad_y = GTK_BUTTONBOX_DEFAULT;
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button_box->layout_style = GTK_BUTTONBOX_DEFAULT_STYLE;
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}
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static void
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gtk_button_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (prop_id)
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{
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case PROP_LAYOUT_STYLE:
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gtk_button_box_set_layout (GTK_BUTTON_BOX (object),
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g_value_get_enum (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_button_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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switch (prop_id)
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{
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case PROP_LAYOUT_STYLE:
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g_value_set_enum (value, GTK_BUTTON_BOX (object)->layout_style);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_button_box_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id)
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{
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case CHILD_PROP_SECONDARY:
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gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), child,
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g_value_get_boolean (value));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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}
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static void
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gtk_button_box_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id)
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{
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case CHILD_PROP_SECONDARY:
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g_value_set_boolean (value,
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gtk_button_box_get_child_secondary (GTK_BUTTON_BOX (container),
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child));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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}
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/* set per widget values for spacing, child size and child internal padding */
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void
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gtk_button_box_set_child_size (GtkButtonBox *widget,
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gint width, gint height)
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{
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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widget->child_min_width = width;
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widget->child_min_height = height;
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}
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void
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gtk_button_box_set_child_ipadding (GtkButtonBox *widget,
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gint ipad_x, gint ipad_y)
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{
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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widget->child_ipad_x = ipad_x;
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widget->child_ipad_y = ipad_y;
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}
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void
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gtk_button_box_set_layout (GtkButtonBox *widget,
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GtkButtonBoxStyle layout_style)
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{
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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g_return_if_fail (layout_style >= GTK_BUTTONBOX_DEFAULT_STYLE &&
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layout_style <= GTK_BUTTONBOX_CENTER);
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if (widget->layout_style != layout_style)
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{
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widget->layout_style = layout_style;
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g_object_notify (G_OBJECT (widget), "layout-style");
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gtk_widget_queue_resize (GTK_WIDGET (widget));
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}
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}
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/* get per widget values for spacing, child size and child internal padding */
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void
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gtk_button_box_get_child_size (GtkButtonBox *widget,
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gint *width, gint *height)
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{
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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g_return_if_fail (width != NULL);
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g_return_if_fail (height != NULL);
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*width = widget->child_min_width;
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*height = widget->child_min_height;
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}
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void
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gtk_button_box_get_child_ipadding (GtkButtonBox *widget,
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gint* ipad_x, gint *ipad_y)
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{
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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g_return_if_fail (ipad_x != NULL);
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g_return_if_fail (ipad_y != NULL);
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*ipad_x = widget->child_ipad_x;
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*ipad_y = widget->child_ipad_y;
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}
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GtkButtonBoxStyle
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gtk_button_box_get_layout (GtkButtonBox *widget)
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{
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g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), GTK_BUTTONBOX_SPREAD);
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return widget->layout_style;
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}
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/**
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* gtk_button_box_get_child_secondary:
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* @widget: a #GtkButtonBox
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* @child: a child of @widget
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*
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* Returns whether @child should appear in a secondary group of children.
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*
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* Return value: whether @child should appear in a secondary group of children.
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*
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* Since: 2.4
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**/
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gboolean
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gtk_button_box_get_child_secondary (GtkButtonBox *widget,
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GtkWidget *child)
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{
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GList *list;
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GtkBoxChild *child_info;
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g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
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g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
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child_info = NULL;
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list = GTK_BOX (widget)->children;
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while (list)
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{
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child_info = list->data;
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if (child_info->widget == child)
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break;
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list = list->next;
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}
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g_return_val_if_fail (list != NULL, FALSE);
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return child_info->is_secondary;
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}
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/**
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* gtk_button_box_set_child_secondary
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* @widget: a #GtkButtonBox
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* @child: a child of @widget
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* @is_secondary: if %TRUE, the @child appears in a secondary group of the
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* button box.
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*
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* Sets whether @child should appear in a secondary group of children.
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* A typical use of a secondary child is the help button in a dialog.
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*
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* This group appears after the other children if the style
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* is %GTK_BUTTONBOX_START, %GTK_BUTTONBOX_SPREAD or
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* %GTK_BUTTONBOX_EDGE, and before the other children if the style
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* is %GTK_BUTTONBOX_END. For horizontal button boxes, the definition
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* of before/after depends on direction of the widget (see
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* gtk_widget_set_direction()). If the style is %GTK_BUTTONBOX_START
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* or %GTK_BUTTONBOX_END, then the secondary children are aligned at
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* the other end of the button box from the main children. For the
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* other styles, they appear immediately next to the main children.
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**/
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void
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gtk_button_box_set_child_secondary (GtkButtonBox *widget,
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GtkWidget *child,
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gboolean is_secondary)
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{
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GList *list;
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent == GTK_WIDGET (widget));
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list = GTK_BOX (widget)->children;
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while (list)
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{
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GtkBoxChild *child_info = list->data;
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if (child_info->widget == child)
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{
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child_info->is_secondary = is_secondary;
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break;
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}
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list = list->next;
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}
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gtk_widget_child_notify (child, "secondary");
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (child))
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gtk_widget_queue_resize (child);
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}
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/* Ask children how much space they require and round up
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to match minimum size and internal padding.
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Returns the size each single child should have. */
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void
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_gtk_button_box_child_requisition (GtkWidget *widget,
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int *nvis_children,
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int *nvis_secondaries,
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int *width,
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int *height)
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{
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GtkButtonBox *bbox;
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GtkBoxChild *child;
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GList *children;
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gint nchildren;
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gint nsecondaries;
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gint needed_width;
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gint needed_height;
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GtkRequisition child_requisition;
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gint ipad_w;
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gint ipad_h;
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gint width_default;
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gint height_default;
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gint ipad_x_default;
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gint ipad_y_default;
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gint child_min_width;
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gint child_min_height;
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gint ipad_x;
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gint ipad_y;
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g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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bbox = GTK_BUTTON_BOX (widget);
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gtk_widget_style_get (widget,
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"child-min-width", &width_default,
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"child-min-height", &height_default,
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"child-internal-pad-x", &ipad_x_default,
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"child-internal-pad-y", &ipad_y_default,
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NULL);
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child_min_width = bbox->child_min_width != GTK_BUTTONBOX_DEFAULT
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? bbox->child_min_width : width_default;
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child_min_height = bbox->child_min_height !=GTK_BUTTONBOX_DEFAULT
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? bbox->child_min_height : height_default;
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ipad_x = bbox->child_ipad_x != GTK_BUTTONBOX_DEFAULT
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? bbox->child_ipad_x : ipad_x_default;
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ipad_y = bbox->child_ipad_y != GTK_BUTTONBOX_DEFAULT
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? bbox->child_ipad_y : ipad_y_default;
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nchildren = 0;
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nsecondaries = 0;
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children = GTK_BOX(bbox)->children;
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needed_width = child_min_width;
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needed_height = child_min_height;
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ipad_w = ipad_x * 2;
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ipad_h = ipad_y * 2;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (GTK_WIDGET_VISIBLE (child->widget))
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{
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nchildren += 1;
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gtk_widget_size_request (child->widget, &child_requisition);
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if (child_requisition.width + ipad_w > needed_width)
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needed_width = child_requisition.width + ipad_w;
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if (child_requisition.height + ipad_h > needed_height)
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needed_height = child_requisition.height + ipad_h;
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if (child->is_secondary)
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nsecondaries++;
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}
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}
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if (nvis_children)
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*nvis_children = nchildren;
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if (nvis_secondaries)
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*nvis_secondaries = nsecondaries;
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if (width)
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*width = needed_width;
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if (height)
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*height = needed_height;
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}
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#define __GTK_BUTTON_BOX_C__
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#include "gtkaliasdef.c"
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