gtk2/gtk/gtktogglebutton.c
Tim Janik afee2c67c5 applied patch from Andreas Persenius <ndap@swipnet.se> that updates the
Wed Jul 26 12:59:31 2000  Tim Janik  <timj@gtk.org>

        * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that
        updates the license headers to the GNU Lesser General Public License,
        as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00

655 lines
18 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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtksignal.h"
#include "gtktogglebutton.h"
#define DEFAULT_LEFT_POS 4
#define DEFAULT_TOP_POS 4
#define DEFAULT_SPACING 7
enum {
TOGGLED,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_ACTIVE,
ARG_DRAW_INDICATOR
};
static void gtk_toggle_button_class_init (GtkToggleButtonClass *klass);
static void gtk_toggle_button_init (GtkToggleButton *toggle_button);
static void gtk_toggle_button_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_toggle_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_toggle_button_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_toggle_button_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_toggle_button_pressed (GtkButton *button);
static void gtk_toggle_button_released (GtkButton *button);
static void gtk_toggle_button_clicked (GtkButton *button);
static void gtk_toggle_button_enter (GtkButton *button);
static void gtk_toggle_button_leave (GtkButton *button);
static void gtk_toggle_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_toggle_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_toggle_button_leave (GtkButton *button);
static void gtk_toggle_button_realize (GtkWidget *widget);
static void gtk_toggle_button_unrealize (GtkWidget *widget);
static void gtk_toggle_button_map (GtkWidget *widget);
static void gtk_toggle_button_unmap (GtkWidget *widget);
static guint toggle_button_signals[LAST_SIGNAL] = { 0 };
static GtkContainerClass *parent_class = NULL;
GtkType
gtk_toggle_button_get_type (void)
{
static GtkType toggle_button_type = 0;
if (!toggle_button_type)
{
static const GtkTypeInfo toggle_button_info =
{
"GtkToggleButton",
sizeof (GtkToggleButton),
sizeof (GtkToggleButtonClass),
(GtkClassInitFunc) gtk_toggle_button_class_init,
(GtkObjectInitFunc) gtk_toggle_button_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
toggle_button_type = gtk_type_unique (GTK_TYPE_BUTTON, &toggle_button_info);
}
return toggle_button_type;
}
static void
gtk_toggle_button_class_init (GtkToggleButtonClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkButtonClass *button_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
button_class = (GtkButtonClass*) class;
parent_class = gtk_type_class (GTK_TYPE_BUTTON);
gtk_object_add_arg_type ("GtkToggleButton::active", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_ACTIVE);
gtk_object_add_arg_type ("GtkToggleButton::draw_indicator", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_DRAW_INDICATOR);
toggle_button_signals[TOGGLED] =
gtk_signal_new ("toggled",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkToggleButtonClass, toggled),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, toggle_button_signals, LAST_SIGNAL);
object_class->set_arg = gtk_toggle_button_set_arg;
object_class->get_arg = gtk_toggle_button_get_arg;
widget_class->size_allocate = gtk_toggle_button_size_allocate;
widget_class->draw = gtk_toggle_button_draw;
widget_class->expose_event = gtk_toggle_button_expose;
widget_class->realize = gtk_toggle_button_realize;
widget_class->unrealize = gtk_toggle_button_unrealize;
widget_class->map = gtk_toggle_button_map;
widget_class->unmap = gtk_toggle_button_unmap;
button_class->pressed = gtk_toggle_button_pressed;
button_class->released = gtk_toggle_button_released;
button_class->clicked = gtk_toggle_button_clicked;
button_class->enter = gtk_toggle_button_enter;
button_class->leave = gtk_toggle_button_leave;
class->toggled = NULL;
}
static void
gtk_toggle_button_init (GtkToggleButton *toggle_button)
{
toggle_button->active = FALSE;
toggle_button->draw_indicator = FALSE;
GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
}
GtkWidget*
gtk_toggle_button_new (void)
{
return GTK_WIDGET (gtk_type_new (gtk_toggle_button_get_type ()));
}
GtkWidget*
gtk_toggle_button_new_with_label (const gchar *label)
{
GtkWidget *toggle_button;
GtkWidget *label_widget;
toggle_button = gtk_toggle_button_new ();
label_widget = gtk_label_new (label);
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.5, 0.5);
gtk_container_add (GTK_CONTAINER (toggle_button), label_widget);
gtk_widget_show (label_widget);
return toggle_button;
}
static void
gtk_toggle_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkToggleButton *tb;
tb = GTK_TOGGLE_BUTTON (object);
switch (arg_id)
{
case ARG_ACTIVE:
gtk_toggle_button_set_active (tb, GTK_VALUE_BOOL (*arg));
break;
case ARG_DRAW_INDICATOR:
gtk_toggle_button_set_mode (tb, GTK_VALUE_BOOL (*arg));
break;
default:
break;
}
}
static void
gtk_toggle_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkToggleButton *tb;
tb = GTK_TOGGLE_BUTTON (object);
switch (arg_id)
{
case ARG_ACTIVE:
GTK_VALUE_BOOL (*arg) = tb->active;
break;
case ARG_DRAW_INDICATOR:
GTK_VALUE_BOOL (*arg) = tb->draw_indicator;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
void
gtk_toggle_button_set_mode (GtkToggleButton *toggle_button,
gboolean draw_indicator)
{
GtkWidget *widget;
g_return_if_fail (toggle_button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
widget = GTK_WIDGET (toggle_button);
draw_indicator = draw_indicator ? TRUE : FALSE;
if (toggle_button->draw_indicator != draw_indicator)
{
if (GTK_WIDGET_REALIZED (toggle_button))
{
gboolean visible = GTK_WIDGET_VISIBLE (toggle_button);
if (visible)
gtk_widget_hide (widget);
gtk_widget_unrealize (widget);
toggle_button->draw_indicator = draw_indicator;
if (toggle_button->draw_indicator)
GTK_WIDGET_SET_FLAGS (toggle_button, GTK_NO_WINDOW);
else
GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
gtk_widget_realize (widget);
if (visible)
gtk_widget_show (widget);
}
else
{
toggle_button->draw_indicator = draw_indicator;
if (toggle_button->draw_indicator)
GTK_WIDGET_SET_FLAGS (toggle_button, GTK_NO_WINDOW);
else
GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
}
if (GTK_WIDGET_VISIBLE (toggle_button))
gtk_widget_queue_resize (GTK_WIDGET (toggle_button));
}
}
void
gtk_toggle_button_set_active (GtkToggleButton *toggle_button,
gboolean is_active)
{
g_return_if_fail (toggle_button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
is_active = is_active != 0;
if (toggle_button->active != is_active)
gtk_button_clicked (GTK_BUTTON (toggle_button));
}
gboolean
gtk_toggle_button_get_active (GtkToggleButton *toggle_button)
{
g_return_val_if_fail (toggle_button != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
return (toggle_button->active) ? TRUE : FALSE;
}
void
gtk_toggle_button_toggled (GtkToggleButton *toggle_button)
{
g_return_if_fail (toggle_button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
gtk_signal_emit (GTK_OBJECT (toggle_button), toggle_button_signals[TOGGLED]);
}
static void
gtk_toggle_button_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkButton *button;
GtkToggleButton *toggle_button;
GtkShadowType shadow_type;
gint width, height;
gint x, y;
button = GTK_BUTTON (widget);
toggle_button = GTK_TOGGLE_BUTTON (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
x = 0;
y = 0;
width = widget->allocation.width - GTK_CONTAINER (widget)->border_width * 2;
height = widget->allocation.height - GTK_CONTAINER (widget)->border_width * 2;
gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
if (GTK_WIDGET_HAS_DEFAULT (widget) &&
GTK_BUTTON (widget)->relief == GTK_RELIEF_NORMAL)
{
gtk_paint_box (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_IN,
area, widget, "togglebuttondefault",
x, y, width, height);
}
if (GTK_WIDGET_CAN_DEFAULT (widget))
{
x += widget->style->xthickness;
y += widget->style->ythickness;
width -= 2 * x + DEFAULT_SPACING;
height -= 2 * y + DEFAULT_SPACING;
x += DEFAULT_LEFT_POS;
y += DEFAULT_TOP_POS;
}
if (GTK_WIDGET_HAS_FOCUS (widget))
{
x += 1;
y += 1;
width -= 2;
height -= 2;
}
if ((GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE) ||
toggle_button->active)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
if (button->relief != GTK_RELIEF_NONE ||
(GTK_WIDGET_STATE(widget) != GTK_STATE_NORMAL &&
GTK_WIDGET_STATE(widget) != GTK_STATE_INSENSITIVE))
gtk_paint_box (widget->style, widget->window,
GTK_WIDGET_STATE (widget),
shadow_type, area, widget, "togglebutton",
x, y, width, height);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
x -= 1;
y -= 1;
width += 2;
height += 2;
gtk_paint_focus (widget->style, widget->window,
area, widget, "togglebutton",
x, y, width - 1, height - 1);
}
}
}
static void
gtk_toggle_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
if (!GTK_WIDGET_NO_WINDOW (widget) &&
GTK_WIDGET_CLASS (parent_class)->size_allocate)
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
}
static gint
gtk_toggle_button_expose (GtkWidget *widget,
GdkEventExpose *event)
{
if (!GTK_WIDGET_NO_WINDOW (widget) &&
GTK_WIDGET_CLASS (parent_class)->expose_event)
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
else
return FALSE;
}
static void
gtk_toggle_button_draw (GtkWidget *widget,
GdkRectangle *area)
{
GdkRectangle child_area;
GdkRectangle tmp_area;
GtkBin *bin;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
g_return_if_fail (area != NULL);
bin = GTK_BIN (widget);
if (GTK_WIDGET_DRAWABLE (widget) && !GTK_WIDGET_NO_WINDOW (widget))
{
tmp_area = *area;
tmp_area.x -= GTK_CONTAINER (widget)->border_width;
tmp_area.y -= GTK_CONTAINER (widget)->border_width;
gtk_toggle_button_paint (widget, &tmp_area);
if (bin->child && gtk_widget_intersect (bin->child, &tmp_area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
}
static void
gtk_toggle_button_pressed (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkStateType new_state;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
toggle_button = GTK_TOGGLE_BUTTON (button);
button->button_down = TRUE;
if (toggle_button->active)
new_state = (button->in_button ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE);
else
new_state = (button->in_button ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
}
static void
gtk_toggle_button_released (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkStateType new_state;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
if (button->button_down)
{
toggle_button = GTK_TOGGLE_BUTTON (button);
button->button_down = FALSE;
if (button->in_button)
{
gtk_button_clicked (button);
}
else
{
if (toggle_button->active)
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
else
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
}
}
}
static void
gtk_toggle_button_clicked (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkStateType new_state;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
toggle_button = GTK_TOGGLE_BUTTON (button);
toggle_button->active = !toggle_button->active;
gtk_toggle_button_toggled (toggle_button);
if (toggle_button->active)
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
else
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
else
gtk_widget_queue_draw (GTK_WIDGET (button));
}
static void
gtk_toggle_button_enter (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkStateType new_state;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
toggle_button = GTK_TOGGLE_BUTTON (button);
if (toggle_button->active)
new_state = (button->button_down ? GTK_STATE_NORMAL : GTK_STATE_PRELIGHT);
else
new_state = (button->button_down ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
}
static void
gtk_toggle_button_leave (GtkButton *button)
{
GtkToggleButton *toggle_button;
GtkStateType new_state;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
toggle_button = GTK_TOGGLE_BUTTON (button);
new_state = (toggle_button->active ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
gtk_widget_set_state (GTK_WIDGET (button), new_state);
}
static void
gtk_toggle_button_realize (GtkWidget *widget)
{
GtkToggleButton *toggle_button;
GdkWindowAttr attributes;
gint attributes_mask;
gint border_width;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
toggle_button = GTK_TOGGLE_BUTTON (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
border_width = GTK_CONTAINER (widget)->border_width;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x + border_width;
attributes.y = widget->allocation.y + border_width;
attributes.width = widget->allocation.width - border_width * 2;
attributes.height = widget->allocation.height - border_width * 2;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK);
if (GTK_WIDGET_NO_WINDOW (widget))
{
attributes.wclass = GDK_INPUT_ONLY;
attributes_mask = GDK_WA_X | GDK_WA_Y;
widget->window = gtk_widget_get_parent_window (widget);
gdk_window_ref (widget->window);
toggle_button->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (toggle_button->event_window, toggle_button);
}
else
{
attributes.wclass = GDK_INPUT_OUTPUT;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, toggle_button);
}
widget->style = gtk_style_attach (widget->style, widget->window);
if (!GTK_WIDGET_NO_WINDOW (widget))
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
}
static void
gtk_toggle_button_unrealize (GtkWidget *widget)
{
GtkToggleButton *toggle_button;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
toggle_button = GTK_TOGGLE_BUTTON (widget);
if (GTK_WIDGET_NO_WINDOW (widget))
{
gdk_window_set_user_data (toggle_button->event_window, NULL);
gdk_window_destroy (toggle_button->event_window);
toggle_button->event_window = NULL;
}
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_toggle_button_map (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
if (GTK_WIDGET_NO_WINDOW (widget))
gdk_window_show (GTK_TOGGLE_BUTTON (widget)->event_window);
GTK_WIDGET_CLASS (parent_class)->map (widget);
}
static void
gtk_toggle_button_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
if (GTK_WIDGET_NO_WINDOW (widget))
gdk_window_hide (GTK_TOGGLE_BUTTON (widget)->event_window);
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}