gtk2/gtk/gtkradiobutton.c
Tim Janik a303493882 applied patch to fix draw_indicator behaviour from Lars Hamann and Stefan
Tue Feb 17 05:41:31 1998  Tim Janik  <timj@gimp.org>

        * gtk/gtkcheckbutton.c:
        * gtk/gtkradiobutton.c:
        * gtk/gtktogglebutton.c:
          applied patch to fix draw_indicator behaviour from Lars Hamann
          and Stefan Jeske.

        * gtk/gtkmain.h:
        * gtk/gtkmain.c (gtk_grab_get_current): new function
          that returns the current grab widget or NULL.

        * gdk/gdkwindow.c (gdk_window_shape_combine_mask): remove
          shape mask if mask==NULL (provided by Stefan Wille).
1998-02-17 06:03:40 +00:00

334 lines
8.8 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "gtklabel.h"
#include "gtkradiobutton.h"
#include "gtksignal.h"
#define CHECK_BUTTON_CLASS(w) GTK_CHECK_BUTTON_CLASS (GTK_OBJECT (w)->klass)
static void gtk_radio_button_class_init (GtkRadioButtonClass *klass);
static void gtk_radio_button_init (GtkRadioButton *radio_button);
static void gtk_radio_button_destroy (GtkObject *object);
static void gtk_radio_button_clicked (GtkButton *button);
static void gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area);
static GtkCheckButtonClass *parent_class = NULL;
guint
gtk_radio_button_get_type ()
{
static guint radio_button_type = 0;
if (!radio_button_type)
{
GtkTypeInfo radio_button_info =
{
"GtkRadioButton",
sizeof (GtkRadioButton),
sizeof (GtkRadioButtonClass),
(GtkClassInitFunc) gtk_radio_button_class_init,
(GtkObjectInitFunc) gtk_radio_button_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
radio_button_type = gtk_type_unique (gtk_check_button_get_type (), &radio_button_info);
}
return radio_button_type;
}
static void
gtk_radio_button_class_init (GtkRadioButtonClass *class)
{
GtkObjectClass *object_class;
GtkButtonClass *button_class;
GtkCheckButtonClass *check_button_class;
object_class = (GtkObjectClass*) class;
button_class = (GtkButtonClass*) class;
check_button_class = (GtkCheckButtonClass*) class;
parent_class = gtk_type_class (gtk_check_button_get_type ());
object_class->destroy = gtk_radio_button_destroy;
button_class->clicked = gtk_radio_button_clicked;
check_button_class->draw_indicator = gtk_radio_button_draw_indicator;
}
static void
gtk_radio_button_init (GtkRadioButton *radio_button)
{
radio_button->group = NULL;
}
GtkWidget*
gtk_radio_button_new (GSList *group)
{
GtkRadioButton *radio_button;
GtkRadioButton *tmp_button;
GSList *tmp_list;
radio_button = gtk_type_new (gtk_radio_button_get_type ());
tmp_list = group;
radio_button->group = g_slist_prepend (group, radio_button);
if (tmp_list)
{
while (tmp_list)
{
tmp_button = tmp_list->data;
tmp_list = tmp_list->next;
tmp_button->group = radio_button->group;
}
}
else
{
GTK_TOGGLE_BUTTON (radio_button)->active = TRUE;
gtk_widget_set_state (GTK_WIDGET (radio_button), GTK_STATE_ACTIVE);
}
return GTK_WIDGET (radio_button);
}
GtkWidget*
gtk_radio_button_new_with_label (GSList *group,
const gchar *label)
{
GtkWidget *radio_button;
GtkWidget *label_widget;
radio_button = gtk_radio_button_new (group);
label_widget = gtk_label_new (label);
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (radio_button), label_widget);
gtk_widget_show (label_widget);
return radio_button;
}
GtkWidget*
gtk_radio_button_new_from_widget (GtkRadioButton *group)
{
GSList *l = NULL;
if (group)
l = gtk_radio_button_group (group);
return gtk_radio_button_new (l);
}
GtkWidget*
gtk_radio_button_new_with_label_from_widget (GtkRadioButton *group,
const gchar *label)
{
GSList *l = NULL;
if (group)
l = gtk_radio_button_group (group);
return gtk_radio_button_new_with_label (l, label);
}
GSList*
gtk_radio_button_group (GtkRadioButton *radio_button)
{
g_return_val_if_fail (radio_button != NULL, NULL);
g_return_val_if_fail (GTK_IS_RADIO_BUTTON (radio_button), NULL);
return radio_button->group;
}
static void
gtk_radio_button_destroy (GtkObject *object)
{
GtkRadioButton *radio_button;
GtkRadioButton *tmp_button;
GSList *tmp_list;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_RADIO_BUTTON (object));
radio_button = GTK_RADIO_BUTTON (object);
radio_button->group = g_slist_remove (radio_button->group, radio_button);
tmp_list = radio_button->group;
while (tmp_list)
{
tmp_button = tmp_list->data;
tmp_list = tmp_list->next;
tmp_button->group = radio_button->group;
}
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gtk_radio_button_clicked (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkRadioButton *radio_button;
GtkToggleButton *tmp_button;
GtkStateType new_state;
GSList *tmp_list;
gint toggled;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_RADIO_BUTTON (button));
radio_button = GTK_RADIO_BUTTON (button);
toggle_button = GTK_TOGGLE_BUTTON (button);
toggled = FALSE;
if (toggle_button->active)
{
tmp_button = NULL;
tmp_list = radio_button->group;
while (tmp_list)
{
tmp_button = tmp_list->data;
tmp_list = tmp_list->next;
if (tmp_button->active && (tmp_button != toggle_button))
break;
tmp_button = NULL;
}
if (!tmp_button)
{
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
}
else
{
toggled = TRUE;
toggle_button->active = !toggle_button->active;
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
}
}
else
{
toggled = TRUE;
toggle_button->active = !toggle_button->active;
tmp_list = radio_button->group;
while (tmp_list)
{
tmp_button = tmp_list->data;
tmp_list = tmp_list->next;
if (tmp_button->active && (tmp_button != toggle_button))
{
gtk_button_clicked (GTK_BUTTON (tmp_button));
break;
}
}
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
}
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
if (toggled)
gtk_toggle_button_toggled (toggle_button);
gtk_widget_queue_draw (GTK_WIDGET (button));
}
static void
gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area)
{
GtkWidget *widget;
GtkButton *button;
GtkToggleButton *toggle_button;
GtkStateType state_type;
GtkShadowType shadow_type;
GdkRectangle restrict_area;
GdkRectangle new_area;
GdkPoint pts[4];
gint width, height;
gint x, y;
g_return_if_fail (check_button != NULL);
g_return_if_fail (GTK_IS_RADIO_BUTTON (check_button));
if (GTK_WIDGET_VISIBLE (check_button) && GTK_WIDGET_MAPPED (check_button))
{
widget = GTK_WIDGET (check_button);
button = GTK_BUTTON (check_button);
toggle_button = GTK_TOGGLE_BUTTON (check_button);
state_type = GTK_WIDGET_STATE (widget);
if ((state_type != GTK_STATE_NORMAL) &&
(state_type != GTK_STATE_PRELIGHT))
state_type = GTK_STATE_NORMAL;
restrict_area.x = GTK_CONTAINER (widget)->border_width;
restrict_area.y = restrict_area.x;
restrict_area.width = widget->allocation.width - restrict_area.x * 2;
restrict_area.height = widget->allocation.height - restrict_area.x * 2;
if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
{
gtk_style_set_background (widget->style, widget->window, state_type);
gdk_window_clear_area (widget->window, new_area.x, new_area.y,
new_area.width, new_area.height);
}
x = CHECK_BUTTON_CLASS (widget)->indicator_spacing + GTK_CONTAINER (widget)->border_width;
y = (widget->allocation.height - CHECK_BUTTON_CLASS (widget)->indicator_size) / 2;
width = CHECK_BUTTON_CLASS (widget)->indicator_size;
height = CHECK_BUTTON_CLASS (widget)->indicator_size;
if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
shadow_type = GTK_SHADOW_IN;
else if ((GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT) && toggle_button->active)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
pts[0].x = x + width / 2;
pts[0].y = y;
pts[1].x = x + width;
pts[1].y = y + height / 2;
pts[2].x = pts[0].x;
pts[2].y = y + height;
pts[3].x = x;
pts[3].y = pts[1].y;
gdk_draw_polygon (widget->window,
widget->style->bg_gc[GTK_WIDGET_STATE (widget)],
TRUE, pts, 4);
gtk_draw_diamond (widget->style, widget->window,
GTK_WIDGET_STATE (widget), shadow_type,
x, y, width, height);
}
}