308 lines
7.5 KiB
C
308 lines
7.5 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 "gtkvbox.h"
|
|
|
|
|
|
static void gtk_vbox_class_init (GtkVBoxClass *klass);
|
|
static void gtk_vbox_init (GtkVBox *box);
|
|
static void gtk_vbox_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition);
|
|
static void gtk_vbox_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation);
|
|
|
|
|
|
guint
|
|
gtk_vbox_get_type ()
|
|
{
|
|
static guint vbox_type = 0;
|
|
|
|
if (!vbox_type)
|
|
{
|
|
GtkTypeInfo vbox_info =
|
|
{
|
|
"GtkVBox",
|
|
sizeof (GtkVBox),
|
|
sizeof (GtkVBoxClass),
|
|
(GtkClassInitFunc) gtk_vbox_class_init,
|
|
(GtkObjectInitFunc) gtk_vbox_init,
|
|
(GtkArgSetFunc) NULL,
|
|
(GtkArgGetFunc) NULL,
|
|
};
|
|
|
|
vbox_type = gtk_type_unique (gtk_box_get_type (), &vbox_info);
|
|
}
|
|
|
|
return vbox_type;
|
|
}
|
|
|
|
static void
|
|
gtk_vbox_class_init (GtkVBoxClass *class)
|
|
{
|
|
GtkWidgetClass *widget_class;
|
|
|
|
widget_class = (GtkWidgetClass*) class;
|
|
|
|
widget_class->size_request = gtk_vbox_size_request;
|
|
widget_class->size_allocate = gtk_vbox_size_allocate;
|
|
}
|
|
|
|
static void
|
|
gtk_vbox_init (GtkVBox *vbox)
|
|
{
|
|
}
|
|
|
|
GtkWidget*
|
|
gtk_vbox_new (gint homogeneous,
|
|
gint spacing)
|
|
{
|
|
GtkVBox *vbox;
|
|
|
|
vbox = gtk_type_new (gtk_vbox_get_type ());
|
|
|
|
GTK_BOX (vbox)->spacing = spacing;
|
|
GTK_BOX (vbox)->homogeneous = homogeneous ? TRUE : FALSE;
|
|
|
|
return GTK_WIDGET (vbox);
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_vbox_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkBox *box;
|
|
GtkBoxChild *child;
|
|
GList *children;
|
|
gint nvis_children;
|
|
gint height;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_VBOX (widget));
|
|
g_return_if_fail (requisition != NULL);
|
|
|
|
box = GTK_BOX (widget);
|
|
requisition->width = 0;
|
|
requisition->height = 0;
|
|
nvis_children = 0;
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (GTK_WIDGET_VISIBLE (child->widget))
|
|
{
|
|
gtk_widget_size_request (child->widget, &child->widget->requisition);
|
|
|
|
if (box->homogeneous)
|
|
{
|
|
height = child->widget->requisition.height + child->padding * 2;
|
|
requisition->height = MAX (requisition->height, height);
|
|
}
|
|
else
|
|
{
|
|
requisition->height += child->widget->requisition.height + child->padding * 2;
|
|
}
|
|
|
|
requisition->width = MAX (requisition->width, child->widget->requisition.width);
|
|
|
|
nvis_children += 1;
|
|
}
|
|
}
|
|
|
|
if (nvis_children > 0)
|
|
{
|
|
if (box->homogeneous)
|
|
requisition->height *= nvis_children;
|
|
requisition->height += (nvis_children - 1) * box->spacing;
|
|
}
|
|
|
|
requisition->width += GTK_CONTAINER (box)->border_width * 2;
|
|
requisition->height += GTK_CONTAINER (box)->border_width * 2;
|
|
}
|
|
|
|
static void
|
|
gtk_vbox_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkBox *box;
|
|
GtkBoxChild *child;
|
|
GList *children;
|
|
GtkAllocation child_allocation;
|
|
gint nvis_children;
|
|
gint nexpand_children;
|
|
gint child_height;
|
|
gint height;
|
|
gint extra;
|
|
gint y;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_VBOX (widget));
|
|
g_return_if_fail (allocation != NULL);
|
|
|
|
box = GTK_BOX (widget);
|
|
widget->allocation = *allocation;
|
|
|
|
nvis_children = 0;
|
|
nexpand_children = 0;
|
|
children = box->children;
|
|
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (GTK_WIDGET_VISIBLE (child->widget))
|
|
{
|
|
nvis_children += 1;
|
|
if (child->expand)
|
|
nexpand_children += 1;
|
|
}
|
|
}
|
|
|
|
if (nvis_children > 0)
|
|
{
|
|
if (box->homogeneous)
|
|
{
|
|
height = (allocation->height -
|
|
GTK_CONTAINER (box)->border_width * 2 -
|
|
(nvis_children - 1) * box->spacing);
|
|
extra = height / nvis_children;
|
|
}
|
|
else if (nexpand_children > 0)
|
|
{
|
|
height = allocation->height - widget->requisition.height;
|
|
extra = height / nexpand_children;
|
|
}
|
|
else
|
|
{
|
|
height = 0;
|
|
extra = 0;
|
|
}
|
|
|
|
y = allocation->y + GTK_CONTAINER (box)->border_width;
|
|
child_allocation.x = allocation->x + GTK_CONTAINER (box)->border_width;
|
|
child_allocation.width = allocation->width - GTK_CONTAINER (box)->border_width * 2;
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if ((child->pack == GTK_PACK_START) && GTK_WIDGET_VISIBLE (child->widget))
|
|
{
|
|
if (box->homogeneous)
|
|
{
|
|
if (nvis_children == 1)
|
|
child_height = height;
|
|
else
|
|
child_height = extra;
|
|
|
|
nvis_children -= 1;
|
|
height -= extra;
|
|
}
|
|
else
|
|
{
|
|
child_height = child->widget->requisition.height + child->padding * 2;
|
|
|
|
if (child->expand)
|
|
{
|
|
if (nexpand_children == 1)
|
|
child_height += height;
|
|
else
|
|
child_height += extra;
|
|
|
|
nexpand_children -= 1;
|
|
height -= extra;
|
|
}
|
|
}
|
|
|
|
if (child->fill)
|
|
{
|
|
child_allocation.height = child_height - child->padding * 2;
|
|
child_allocation.y = y + child->padding;
|
|
}
|
|
else
|
|
{
|
|
child_allocation.height = child->widget->requisition.height;
|
|
child_allocation.y = y + (child_height - child_allocation.height) / 2;
|
|
}
|
|
|
|
gtk_widget_size_allocate (child->widget, &child_allocation);
|
|
|
|
y += child_height + box->spacing;
|
|
}
|
|
}
|
|
|
|
y = allocation->y + allocation->height - GTK_CONTAINER (box)->border_width;
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if ((child->pack == GTK_PACK_END) && GTK_WIDGET_VISIBLE (child->widget))
|
|
{
|
|
if (box->homogeneous)
|
|
{
|
|
if (nvis_children == 1)
|
|
child_height = height;
|
|
else
|
|
child_height = extra;
|
|
|
|
nvis_children -= 1;
|
|
height -= extra;
|
|
}
|
|
else
|
|
{
|
|
child_height = child->widget->requisition.height + child->padding * 2;
|
|
|
|
if (child->expand)
|
|
{
|
|
if (nexpand_children == 1)
|
|
child_height += height;
|
|
else
|
|
child_height += extra;
|
|
|
|
nexpand_children -= 1;
|
|
height -= extra;
|
|
}
|
|
}
|
|
|
|
if (child->fill)
|
|
{
|
|
child_allocation.height = child_height - child->padding * 2;
|
|
child_allocation.y = y + child->padding - child_height;
|
|
}
|
|
else
|
|
{
|
|
child_allocation.height = child->widget->requisition.height;
|
|
child_allocation.y = y + (child_height - child_allocation.height) / 2 - child_height;
|
|
}
|
|
|
|
gtk_widget_size_allocate (child->widget, &child_allocation);
|
|
|
|
y -= (child_height + box->spacing);
|
|
}
|
|
}
|
|
}
|
|
}
|