mirror of https://github.com/GNOME/gimp.git
215 lines
6.6 KiB
C
215 lines
6.6 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* GtkHWrapBox: Horizontal wrapping box widget
|
|
* Copyright (C) 1999 Tim Janik
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "gimpconstrainedhwrapbox.h"
|
|
|
|
|
|
static void gimp_constrained_hwrap_box_class_init (GimpConstrainedHWrapBoxClass *klass);
|
|
static void gimp_constrained_hwrap_box_init (GimpConstrainedHWrapBox *hwbox);
|
|
static void gimp_constrained_hwrap_box_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition);
|
|
static void gimp_constrained_hwrap_box_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation);
|
|
|
|
|
|
static GtkHWrapBoxClass *parent_class = NULL;
|
|
|
|
|
|
GtkType
|
|
gimp_constrained_hwrap_box_get_type (void)
|
|
{
|
|
static GtkType constrained_hwrap_box_type = 0;
|
|
|
|
if (! constrained_hwrap_box_type)
|
|
{
|
|
static const GtkTypeInfo constrained_hwrap_box_info =
|
|
{
|
|
"GimpConstrainedHWrapBox",
|
|
sizeof (GimpConstrainedHWrapBox),
|
|
sizeof (GimpConstrainedHWrapBoxClass),
|
|
(GtkClassInitFunc) gimp_constrained_hwrap_box_class_init,
|
|
(GtkObjectInitFunc) gimp_constrained_hwrap_box_init,
|
|
/* reserved_1 */ NULL,
|
|
/* reserved_2 */ NULL,
|
|
(GtkClassInitFunc) NULL,
|
|
};
|
|
|
|
constrained_hwrap_box_type = gtk_type_unique (GTK_TYPE_HWRAP_BOX,
|
|
&constrained_hwrap_box_info);
|
|
}
|
|
|
|
return constrained_hwrap_box_type;
|
|
}
|
|
|
|
static void
|
|
gimp_constrained_hwrap_box_class_init (GimpConstrainedHWrapBoxClass *class)
|
|
{
|
|
GtkObjectClass *object_class;
|
|
GtkWidgetClass *widget_class;
|
|
|
|
object_class = GTK_OBJECT_CLASS (class);
|
|
widget_class = GTK_WIDGET_CLASS (class);
|
|
|
|
parent_class = gtk_type_class (GTK_TYPE_HWRAP_BOX);
|
|
|
|
widget_class->size_request = gimp_constrained_hwrap_box_size_request;
|
|
widget_class->size_allocate = gimp_constrained_hwrap_box_size_allocate;
|
|
}
|
|
|
|
static void
|
|
gimp_constrained_hwrap_box_init (GimpConstrainedHWrapBox *hwbox)
|
|
{
|
|
hwbox->rows = 1;
|
|
hwbox->columns = 1;
|
|
}
|
|
|
|
GtkWidget*
|
|
gimp_constrained_hwrap_box_new (gboolean homogeneous)
|
|
{
|
|
GimpConstrainedHWrapBox *hwbox;
|
|
|
|
hwbox = GIMP_CONSTRAINED_HWRAP_BOX (gtk_widget_new (GIMP_TYPE_CONSTRAINED_HWRAP_BOX, NULL));
|
|
|
|
GTK_WRAP_BOX (hwbox)->homogeneous = homogeneous ? TRUE : FALSE;
|
|
|
|
return GTK_WIDGET (hwbox);
|
|
}
|
|
|
|
static void
|
|
gimp_constrained_hwrap_box_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkWrapBox *wbox = GTK_WRAP_BOX (widget);
|
|
|
|
g_return_if_fail (requisition != NULL);
|
|
|
|
if (widget->parent &&
|
|
GTK_IS_VIEWPORT (widget->parent) &&
|
|
widget->parent->parent &&
|
|
GTK_IS_SCROLLED_WINDOW (widget->parent->parent) &&
|
|
wbox->children &&
|
|
wbox->children->widget)
|
|
{
|
|
GtkWidget *scrolled_win;
|
|
gint child_width;
|
|
gint child_height;
|
|
gint viewport_width;
|
|
gint columns;
|
|
gint rows;
|
|
|
|
scrolled_win = widget->parent->parent;
|
|
|
|
child_width = wbox->children->widget->requisition.width;
|
|
child_height = wbox->children->widget->requisition.height;
|
|
|
|
viewport_width =
|
|
(scrolled_win->allocation.width -
|
|
GTK_SCROLLED_WINDOW (scrolled_win)->vscrollbar->allocation.width -
|
|
GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (scrolled_win)->klass)->scrollbar_spacing -
|
|
scrolled_win->style->klass->xthickness * 2);
|
|
|
|
columns =
|
|
(viewport_width + wbox->hspacing) / (child_width + wbox->hspacing);
|
|
|
|
columns = MAX (1, columns);
|
|
|
|
requisition->width = (child_width + wbox->hspacing) * columns;
|
|
|
|
rows = wbox->n_children / columns;
|
|
|
|
if (rows * columns < wbox->n_children)
|
|
rows++;
|
|
|
|
requisition->height = (child_height + wbox->vspacing) * rows;
|
|
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->columns = columns;
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->rows = rows;
|
|
}
|
|
else if (GTK_WIDGET_CLASS (parent_class)->size_request)
|
|
{
|
|
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
|
|
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->columns = 1;
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->rows = 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_constrained_hwrap_box_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkWrapBox *wbox = GTK_WRAP_BOX (widget);
|
|
|
|
g_return_if_fail (allocation != NULL);
|
|
|
|
if (widget->parent &&
|
|
GTK_IS_VIEWPORT (widget->parent) &&
|
|
widget->parent->parent &&
|
|
GTK_IS_SCROLLED_WINDOW (widget->parent->parent) &&
|
|
wbox->children &&
|
|
wbox->children->widget)
|
|
{
|
|
GtkWidget *scrolled_win;
|
|
gint child_width;
|
|
gint child_height;
|
|
gint viewport_width;
|
|
gint columns;
|
|
gint rows;
|
|
|
|
scrolled_win = widget->parent->parent;
|
|
|
|
child_width = wbox->children->widget->requisition.width;
|
|
child_height = wbox->children->widget->requisition.height;
|
|
|
|
viewport_width =
|
|
(scrolled_win->allocation.width -
|
|
GTK_SCROLLED_WINDOW (scrolled_win)->vscrollbar->allocation.width -
|
|
GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (scrolled_win)->klass)->scrollbar_spacing -
|
|
scrolled_win->style->klass->xthickness * 2);
|
|
|
|
allocation->width = viewport_width;
|
|
|
|
columns =
|
|
(viewport_width + wbox->hspacing) / (child_width + wbox->hspacing);
|
|
|
|
columns = MAX (1, columns);
|
|
|
|
rows = wbox->n_children / columns;
|
|
|
|
if (rows * columns < wbox->n_children)
|
|
rows++;
|
|
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->columns = columns;
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->rows = rows;
|
|
}
|
|
else
|
|
{
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->columns = 1;
|
|
GIMP_CONSTRAINED_HWRAP_BOX (wbox)->rows = 1;
|
|
}
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->size_allocate)
|
|
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
|
|
}
|