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/* 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 "gtksignal.h"
#include "gtkeventbox.h"
static void gtk_event_box_class_init (GtkEventBoxClass *klass);
static void gtk_event_box_init (GtkEventBox *event_box);
static void gtk_event_box_realize (GtkWidget *widget);
static void gtk_event_box_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_event_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_event_box_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_event_box_expose (GtkWidget *widget,
GdkEventExpose *event);
guint
gtk_event_box_get_type ()
{
static guint event_box_type = 0;
if (!event_box_type)
{
GtkTypeInfo event_box_info =
{
"GtkEventBox",
sizeof (GtkEventBox),
sizeof (GtkEventBoxClass),
(GtkClassInitFunc) gtk_event_box_class_init,
(GtkObjectInitFunc) gtk_event_box_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
event_box_type = gtk_type_unique (gtk_bin_get_type (), &event_box_info);
}
return event_box_type;
}
static void
gtk_event_box_class_init (GtkEventBoxClass *class)
{
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*) class;
widget_class->realize = gtk_event_box_realize;
widget_class->size_request = gtk_event_box_size_request;
widget_class->size_allocate = gtk_event_box_size_allocate;
widget_class->draw = gtk_event_box_draw;
widget_class->expose_event = gtk_event_box_expose;
}
static void
gtk_event_box_init (GtkEventBox *event_box)
{
GTK_WIDGET_UNSET_FLAGS (event_box, GTK_NO_WINDOW);
GTK_WIDGET_SET_FLAGS (event_box, GTK_BASIC);
}
GtkWidget*
gtk_event_box_new ()
{
return GTK_WIDGET ( gtk_type_new (gtk_event_box_get_type ()));
}
static void
gtk_event_box_realize (GtkWidget *widget)
{
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget)
| GDK_BUTTON_MOTION_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_EXPOSURE_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
}
static void
gtk_event_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkBin *bin;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
g_return_if_fail (requisition != NULL);
bin = GTK_BIN (widget);
requisition->width = GTK_CONTAINER (widget)->border_width * 2;
requisition->height = GTK_CONTAINER (widget)->border_width * 2;
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
gtk_widget_size_request (bin->child, &bin->child->requisition);
requisition->width += bin->child->requisition.width;
requisition->height += bin->child->requisition.height;
}
}
static void
gtk_event_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBin *bin;
GtkAllocation child_allocation;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
bin = GTK_BIN (widget);
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.width = allocation->width - GTK_CONTAINER (widget)->border_width * 2;
child_allocation.height = allocation->height - GTK_CONTAINER (widget)->border_width * 2;
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x + GTK_CONTAINER (widget)->border_width,
allocation->y + GTK_CONTAINER (widget)->border_width,
child_allocation.width,
child_allocation.height);
}
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
gtk_widget_size_allocate (bin->child, &child_allocation);
}
}
static void
gtk_event_box_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkBin *bin;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EVENT_BOX (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
bin = GTK_BIN (widget);
if (bin->child)
{
if (gtk_widget_intersect (bin->child, area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
}
}
static gint
gtk_event_box_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkBin *bin;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_EVENT_BOX (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
bin = GTK_BIN (widget);
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);
}
return FALSE;
}
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