forked from AuroraMiddleware/gtk
368 lines
9.6 KiB
C
368 lines
9.6 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 "gtkcontainer.h"
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#include "gtkmisc.h"
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#include "gtkintl.h"
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enum {
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PROP_0,
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PROP_XALIGN,
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PROP_YALIGN,
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PROP_XPAD,
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PROP_YPAD
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};
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static void gtk_misc_class_init (GtkMiscClass *klass);
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static void gtk_misc_init (GtkMisc *misc);
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static void gtk_misc_realize (GtkWidget *widget);
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static void gtk_misc_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_misc_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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GType
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gtk_misc_get_type (void)
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{
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static GType misc_type = 0;
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if (!misc_type)
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{
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static const GTypeInfo misc_info =
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{
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sizeof (GtkMiscClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_misc_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkMisc),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_misc_init,
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NULL, /* value_table */
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};
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misc_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkMisc",
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&misc_info, G_TYPE_FLAG_ABSTRACT);
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}
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return misc_type;
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}
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static void
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gtk_misc_class_init (GtkMiscClass *class)
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{
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GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
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gobject_class = G_OBJECT_CLASS (class);
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widget_class = (GtkWidgetClass*) class;
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gobject_class->set_property = gtk_misc_set_property;
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gobject_class->get_property = gtk_misc_get_property;
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widget_class->realize = gtk_misc_realize;
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g_object_class_install_property (gobject_class,
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PROP_XALIGN,
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g_param_spec_float ("xalign",
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P_("X align"),
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P_("The horizontal alignment, from 0 (left) to 1 (right). Reversed for RTL layouts."),
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0.0,
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1.0,
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0.5,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_YALIGN,
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g_param_spec_float ("yalign",
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P_("Y align"),
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P_("The vertical alignment, from 0 (top) to 1 (bottom)"),
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0.0,
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1.0,
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0.5,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_XPAD,
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g_param_spec_int ("xpad",
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P_("X pad"),
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P_("The amount of space to add on the left and right of the widget, in pixels"),
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0,
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G_MAXINT,
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0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_YPAD,
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g_param_spec_int ("ypad",
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P_("Y pad"),
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P_("The amount of space to add on the top and bottom of the widget, in pixels"),
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0,
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G_MAXINT,
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0,
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G_PARAM_READWRITE));
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}
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static void
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gtk_misc_init (GtkMisc *misc)
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{
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misc->xalign = 0.5;
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misc->yalign = 0.5;
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misc->xpad = 0;
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misc->ypad = 0;
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}
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static void
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gtk_misc_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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GtkMisc *misc;
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misc = GTK_MISC (object);
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switch (prop_id)
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{
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case PROP_XALIGN:
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gtk_misc_set_alignment (misc, g_value_get_float (value), misc->yalign);
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break;
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case PROP_YALIGN:
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gtk_misc_set_alignment (misc, misc->xalign, g_value_get_float (value));
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break;
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case PROP_XPAD:
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gtk_misc_set_padding (misc, g_value_get_int (value), misc->ypad);
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break;
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case PROP_YPAD:
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gtk_misc_set_padding (misc, misc->xpad, g_value_get_int (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_misc_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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GtkMisc *misc;
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misc = GTK_MISC (object);
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switch (prop_id)
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{
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case PROP_XALIGN:
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g_value_set_float (value, misc->xalign);
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break;
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case PROP_YALIGN:
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g_value_set_float (value, misc->yalign);
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break;
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case PROP_XPAD:
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g_value_set_int (value, misc->xpad);
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break;
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case PROP_YPAD:
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g_value_set_int (value, misc->ypad);
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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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void
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gtk_misc_set_alignment (GtkMisc *misc,
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gfloat xalign,
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gfloat yalign)
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{
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g_return_if_fail (GTK_IS_MISC (misc));
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if (xalign < 0.0)
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xalign = 0.0;
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else if (xalign > 1.0)
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xalign = 1.0;
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if (yalign < 0.0)
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yalign = 0.0;
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else if (yalign > 1.0)
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yalign = 1.0;
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if ((xalign != misc->xalign) || (yalign != misc->yalign))
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{
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misc->xalign = xalign;
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misc->yalign = yalign;
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/* clear the area that was allocated before the change
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*/
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if (GTK_WIDGET_DRAWABLE (misc))
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{
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GtkWidget *widget;
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widget = GTK_WIDGET (misc);
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gtk_widget_queue_draw (widget);
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}
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g_object_freeze_notify (G_OBJECT (misc));
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if (xalign != misc->xalign)
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g_object_notify (G_OBJECT (misc), "xalign");
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if (yalign != misc->yalign)
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g_object_notify (G_OBJECT (misc), "yalign");
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g_object_thaw_notify (G_OBJECT (misc));
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}
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}
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/**
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* gtk_misc_get_alignment:
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* @misc: a #GtkMisc
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* @xalign: location to store X alignment of @misc, or %NULL
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* @yalign: location to store Y alignment of @misc, or %NULL
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*
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* Gets the X and Y alignment of the widget within its allocation. See
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* gtk_misc_set_alignment().
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**/
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void
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gtk_misc_get_alignment (GtkMisc *misc,
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gfloat *xalign,
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gfloat *yalign)
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{
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g_return_if_fail (GTK_IS_MISC (misc));
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if (xalign)
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*xalign = misc->xalign;
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if (yalign)
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*yalign = misc->yalign;
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}
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void
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gtk_misc_set_padding (GtkMisc *misc,
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gint xpad,
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gint ypad)
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{
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GtkRequisition *requisition;
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g_return_if_fail (GTK_IS_MISC (misc));
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if (xpad < 0)
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xpad = 0;
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if (ypad < 0)
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ypad = 0;
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if ((xpad != misc->xpad) || (ypad != misc->ypad))
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{
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requisition = &(GTK_WIDGET (misc)->requisition);
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requisition->width -= misc->xpad * 2;
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requisition->height -= misc->ypad * 2;
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misc->xpad = xpad;
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misc->ypad = ypad;
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requisition->width += misc->xpad * 2;
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requisition->height += misc->ypad * 2;
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if (GTK_WIDGET_DRAWABLE (misc))
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gtk_widget_queue_resize (GTK_WIDGET (misc));
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g_object_freeze_notify (G_OBJECT (misc));
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if (xpad != misc->xpad)
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g_object_notify (G_OBJECT (misc), "xpad");
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if (ypad != misc->ypad)
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g_object_notify (G_OBJECT (misc), "ypad");
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g_object_thaw_notify (G_OBJECT (misc));
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}
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}
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/**
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* gtk_misc_get_padding:
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* @misc: a #GtkMisc
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* @xpad: location to store padding in the X direction, or %NULL
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* @ypad: location to store padding in the Y direction, or %NULL
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*
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* Gets the padding in the X and Y directions of the widget. See gtk_misc_set_padding().
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**/
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void
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gtk_misc_get_padding (GtkMisc *misc,
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gint *xpad,
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gint *ypad)
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{
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g_return_if_fail (GTK_IS_MISC (misc));
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if (xpad)
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*xpad = misc->xpad;
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if (ypad)
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*ypad = misc->ypad;
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}
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static void
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gtk_misc_realize (GtkWidget *widget)
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{
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GtkMisc *misc;
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GdkWindowAttr attributes;
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gint attributes_mask;
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g_return_if_fail (GTK_IS_MISC (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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misc = GTK_MISC (widget);
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if (GTK_WIDGET_NO_WINDOW (widget))
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{
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widget->window = gtk_widget_get_parent_window (widget);
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g_object_ref (widget->window);
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widget->style = gtk_style_attach (widget->style, widget->window);
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}
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else
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{
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.x = widget->allocation.x;
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attributes.y = widget->allocation.y;
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attributes.width = widget->allocation.width;
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attributes.height = widget->allocation.height;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
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gdk_window_set_user_data (widget->window, widget);
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widget->style = gtk_style_attach (widget->style, widget->window);
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gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
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}
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}
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