gtk2/gtk/gtkcheckbutton.c
CST 1999 Shawn T. Amundson 279e878bdd Added notice to look in AUTHORS and ChangeLog files for a list of changes.
Wed Feb 24 01:22:39 CST 1999 Shawn T. Amundson <amundson@gtk.org>

        * *.[ch]: Added notice to look in AUTHORS and ChangeLog files
	  for a list of changes.
1999-02-24 07:37:18 +00:00

412 lines
12 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. 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 "gtkcheckbutton.h"
#include "gtklabel.h"
#define INDICATOR_SIZE 10
#define INDICATOR_SPACING 2
#define CHECK_BUTTON_CLASS(w) GTK_CHECK_BUTTON_CLASS (GTK_OBJECT (w)->klass)
static void gtk_check_button_class_init (GtkCheckButtonClass *klass);
static void gtk_check_button_init (GtkCheckButton *check_button);
static void gtk_check_button_draw (GtkWidget *widget,
GdkRectangle *area);
static void gtk_check_button_draw_focus (GtkWidget *widget);
static void gtk_check_button_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_check_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint gtk_check_button_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_check_button_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_check_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area);
static void gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area);
static GtkToggleButtonClass *parent_class = NULL;
GtkType
gtk_check_button_get_type (void)
{
static GtkType check_button_type = 0;
if (!check_button_type)
{
static const GtkTypeInfo check_button_info =
{
"GtkCheckButton",
sizeof (GtkCheckButton),
sizeof (GtkCheckButtonClass),
(GtkClassInitFunc) gtk_check_button_class_init,
(GtkObjectInitFunc) gtk_check_button_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
check_button_type = gtk_type_unique (GTK_TYPE_TOGGLE_BUTTON, &check_button_info);
}
return check_button_type;
}
static void
gtk_check_button_class_init (GtkCheckButtonClass *class)
{
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_toggle_button_get_type ());
widget_class->draw = gtk_check_button_draw;
widget_class->draw_focus = gtk_check_button_draw_focus;
widget_class->size_request = gtk_check_button_size_request;
widget_class->size_allocate = gtk_check_button_size_allocate;
widget_class->expose_event = gtk_check_button_expose;
class->indicator_size = INDICATOR_SIZE;
class->indicator_spacing = INDICATOR_SPACING;
class->draw_indicator = gtk_real_check_button_draw_indicator;
}
static void
gtk_check_button_init (GtkCheckButton *check_button)
{
GTK_WIDGET_SET_FLAGS (check_button, GTK_NO_WINDOW);
GTK_WIDGET_UNSET_FLAGS (check_button, GTK_RECEIVES_DEFAULT);
GTK_TOGGLE_BUTTON (check_button)->draw_indicator = TRUE;
}
GtkWidget*
gtk_check_button_new (void)
{
return gtk_widget_new (GTK_TYPE_CHECK_BUTTON, NULL);
}
GtkWidget*
gtk_check_button_new_with_label (const gchar *label)
{
GtkWidget *check_button;
GtkWidget *label_widget;
check_button = gtk_check_button_new ();
label_widget = gtk_label_new (label);
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (check_button), label_widget);
gtk_widget_show (label_widget);
return check_button;
}
/* This should only be called when toggle_button->draw_indicator
* is true.
*/
static void
gtk_check_button_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkCheckButton *check_button;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (widget));
check_button = GTK_CHECK_BUTTON (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
gint border_width;
gtk_check_button_draw_indicator (check_button, area);
border_width = GTK_CONTAINER (widget)->border_width;
if (GTK_WIDGET_HAS_FOCUS (widget))
gtk_paint_focus (widget->style, widget->window,
NULL, widget, "checkbutton",
border_width + widget->allocation.x,
border_width + widget->allocation.y,
widget->allocation.width - 2 * border_width - 1,
widget->allocation.height - 2 * border_width - 1);
}
}
static void
gtk_check_button_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkCheckButton *check_button;
GtkToggleButton *toggle_button;
GtkBin *bin;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (widget));
g_return_if_fail (area != NULL);
check_button = GTK_CHECK_BUTTON (widget);
toggle_button = GTK_TOGGLE_BUTTON (widget);
bin = GTK_BIN (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
if (toggle_button->draw_indicator)
{
gtk_check_button_paint (widget, area);
if (bin->child && gtk_widget_intersect (bin->child, area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
else
{
if (GTK_WIDGET_CLASS (parent_class)->draw)
(* GTK_WIDGET_CLASS (parent_class)->draw) (widget, area);
}
}
}
static void
gtk_check_button_draw_focus (GtkWidget *widget)
{
gint border_width;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (widget));
border_width = GTK_CONTAINER (widget)->border_width;
gtk_widget_queue_clear_area (widget->parent,
border_width + widget->allocation.x,
border_width + widget->allocation.y,
widget->allocation.width - 2 * border_width,
widget->allocation.height - 2 * border_width);
}
static void
gtk_check_button_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkToggleButton *toggle_button;
gint temp;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (widget));
g_return_if_fail (requisition != NULL);
toggle_button = GTK_TOGGLE_BUTTON (widget);
if (GTK_WIDGET_CLASS (parent_class)->size_request)
(* GTK_WIDGET_CLASS (parent_class)->size_request) (widget, requisition);
if (toggle_button->draw_indicator)
{
requisition->width += (CHECK_BUTTON_CLASS (widget)->indicator_size +
CHECK_BUTTON_CLASS (widget)->indicator_spacing * 3 + 2);
temp = (CHECK_BUTTON_CLASS (widget)->indicator_size +
CHECK_BUTTON_CLASS (widget)->indicator_spacing * 2);
requisition->height = MAX (requisition->height, temp) + 2;
}
}
static void
gtk_check_button_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCheckButton *check_button;
GtkToggleButton *toggle_button;
GtkButton *button;
GtkAllocation child_allocation;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (widget));
g_return_if_fail (allocation != NULL);
check_button = GTK_CHECK_BUTTON (widget);
toggle_button = GTK_TOGGLE_BUTTON (widget);
if (toggle_button->draw_indicator)
{
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (toggle_button->event_window,
allocation->x, allocation->y,
allocation->width, allocation->height);
button = GTK_BUTTON (widget);
if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
{
child_allocation.x = (GTK_CONTAINER (widget)->border_width +
CHECK_BUTTON_CLASS (widget)->indicator_size +
CHECK_BUTTON_CLASS (widget)->indicator_spacing * 3 + 1 +
widget->allocation.x);
child_allocation.y = GTK_CONTAINER (widget)->border_width + 1 +
widget->allocation.y;
child_allocation.width = MAX (1, allocation->width -
(GTK_CONTAINER (widget)->border_width +
CHECK_BUTTON_CLASS (widget)->indicator_size +
CHECK_BUTTON_CLASS (widget)->indicator_spacing * 3 + 1) -
GTK_CONTAINER (widget)->border_width - 1);
child_allocation.height = MAX (1, allocation->height - (GTK_CONTAINER (widget)->border_width + 1) * 2);
gtk_widget_size_allocate (GTK_BIN (button)->child, &child_allocation);
}
}
else
{
if (GTK_WIDGET_CLASS (parent_class)->size_allocate)
(* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
}
}
static gint
gtk_check_button_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkCheckButton *check_button;
GtkToggleButton *toggle_button;
GtkBin *bin;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_CHECK_BUTTON (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
check_button = GTK_CHECK_BUTTON (widget);
toggle_button = GTK_TOGGLE_BUTTON (widget);
bin = GTK_BIN (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
if (toggle_button->draw_indicator)
{
gtk_check_button_paint (widget, &event->area);
child_event = *event;
if (bin->child && GTK_WIDGET_NO_WINDOW (bin->child) &&
gtk_widget_intersect (bin->child, &event->area, &child_event.area))
gtk_widget_event (bin->child, (GdkEvent*) &child_event);
}
else
{
if (GTK_WIDGET_CLASS (parent_class)->expose_event)
(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
}
}
return FALSE;
}
static void
gtk_check_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area)
{
GtkCheckButtonClass *class;
g_return_if_fail (check_button != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (check_button));
class = CHECK_BUTTON_CLASS (check_button);
if (class->draw_indicator)
(* class->draw_indicator) (check_button, area);
}
static void
gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
GdkRectangle *area)
{
GtkWidget *widget;
GtkToggleButton *toggle_button;
GtkStateType state_type;
GtkShadowType shadow_type;
GdkRectangle restrict_area;
GdkRectangle new_area;
gint width, height;
gint x, y;
GdkWindow *window;
g_return_if_fail (check_button != NULL);
g_return_if_fail (GTK_IS_CHECK_BUTTON (check_button));
widget = GTK_WIDGET (check_button);
toggle_button = GTK_TOGGLE_BUTTON (check_button);
if (GTK_WIDGET_DRAWABLE (check_button))
{
window = widget->window;
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 = widget->allocation.x + GTK_CONTAINER (widget)->border_width;
restrict_area.y = widget->allocation.y + GTK_CONTAINER (widget)->border_width;
restrict_area.width = widget->allocation.width - ( 2 * GTK_CONTAINER (widget)->border_width);
restrict_area.height = widget->allocation.height - ( 2 * GTK_CONTAINER (widget)->border_width);
if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
{
if (state_type != GTK_STATE_NORMAL)
gtk_paint_flat_box (widget->style, window, state_type,
GTK_SHADOW_ETCHED_OUT,
area, widget, "checkbutton",
new_area.x, new_area.y,
new_area.width, new_area.height);
}
x = widget->allocation.x + CHECK_BUTTON_CLASS (widget)->indicator_spacing + GTK_CONTAINER (widget)->border_width;
y = widget->allocation.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_TOGGLE_BUTTON (widget)->active)
{
state_type = GTK_STATE_ACTIVE;
shadow_type = GTK_SHADOW_IN;
}
else
{
shadow_type = GTK_SHADOW_OUT;
state_type = GTK_WIDGET_STATE (widget);
}
gtk_paint_check (widget->style, window,
state_type, shadow_type,
area, widget, "checkbutton",
x + 1, y + 1, width, height);
}
}