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![Darin Adler](/assets/img/avatar_default.png)
* Many files. Update for change in Eel boilerplate macro names. * src/nautilus-application.c: (nautilus_application_startup): GtkObject -> GObject. * src/nautilus-shell.c: (nautilus_shell_class_init), (finalize), (nautilus_shell_new): GtkObject -> GObject.
160 lines
5.6 KiB
C
160 lines
5.6 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
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/* nautilus-keep-last-vertical-box.c: Subclass of GtkVBox that clips off
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items that don't fit, except the last one.
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Copyright (C) 2000 Eazel, Inc.
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The Gnome Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the Gnome Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Author: John Sullivan <sullivan@eazel.com>,
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*/
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#include <config.h>
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#include "nautilus-keep-last-vertical-box.h"
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#include <eel/eel-gtk-macros.h>
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static void nautilus_keep_last_vertical_box_class_init (NautilusKeepLastVerticalBoxClass *class);
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static void nautilus_keep_last_vertical_box_init (NautilusKeepLastVerticalBox *box);
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static void nautilus_keep_last_vertical_box_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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EEL_CLASS_BOILERPLATE (NautilusKeepLastVerticalBox, nautilus_keep_last_vertical_box, GTK_TYPE_VBOX)
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/* Standard class initialization function */
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static void
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nautilus_keep_last_vertical_box_class_init (NautilusKeepLastVerticalBoxClass *klass)
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{
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GtkWidgetClass *widget_class;
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widget_class = (GtkWidgetClass *) klass;
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widget_class->size_allocate = nautilus_keep_last_vertical_box_size_allocate;
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}
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/* Standard object initialization function */
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static void
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nautilus_keep_last_vertical_box_init (NautilusKeepLastVerticalBox *box)
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{
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}
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/* nautilus_keep_last_vertical_box_new:
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*
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* Create a new vertical box that clips off items from the end that don't
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* fit, except the last item, which is always kept. When packing this widget
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* into another vbox, use TRUE for expand and TRUE for fill or this class's
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* special clipping magic won't work because this widget's allocation might
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* be larger than the available space.
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*
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* @spacing: Vertical space between items.
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*
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* Return value: A new NautilusKeepLastVerticalBox
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*/
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GtkWidget *
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nautilus_keep_last_vertical_box_new (gint spacing)
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{
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NautilusKeepLastVerticalBox *box;
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box = NAUTILUS_KEEP_LAST_VERTICAL_BOX (gtk_widget_new (nautilus_keep_last_vertical_box_get_type (), NULL));
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GTK_BOX (box)->spacing = spacing;
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/* If homogeneous is TRUE and there are too many items to fit
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* naturally, they will be squashed together to fit in the space.
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* We want the ones that don't fit to be not shown at all, so
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* we set homogeneous to FALSE.
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*/
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GTK_BOX (box)->homogeneous = FALSE;
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return GTK_WIDGET (box);
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}
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static void
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nautilus_keep_last_vertical_box_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkBox *box;
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GtkBoxChild *last_child, *child;
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GList *children;
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GtkAllocation last_child_allocation, child_allocation, tiny_allocation;
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g_return_if_fail (NAUTILUS_IS_KEEP_LAST_VERTICAL_BOX (widget));
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g_return_if_fail (allocation != NULL);
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EEL_CALL_PARENT (GTK_WIDGET_CLASS, size_allocate, (widget, allocation));
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box = GTK_BOX (widget);
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children = g_list_last (box->children);
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if (children != NULL) {
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last_child = children->data;
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children = children->prev;
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last_child_allocation = last_child->widget->allocation;
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/* If last child doesn't fit vertically, prune items from the end of the
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* list one at a time until it does.
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*/
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if (last_child_allocation.y + last_child_allocation.height >
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allocation->y + allocation->height) {
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while (children != NULL) {
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child = children->data;
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children = children->prev;
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child_allocation = child->widget->allocation;
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/* Reallocate this child's position so that it does not appear.
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* Setting the width & height to 0 is not enough, as
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* one pixel is still drawn. Must also move it outside
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* visible range. For the cases I've seen, -1, -1 works fine.
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* This might not work in all future cases. Alternatively, the
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* items that don't fit could be hidden, but that would interfere
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* with having other hidden children.
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*
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* Note that these children are having their size allocated twice,
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* once by gtk_vbox_size_allocate and then again here. I don't
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* know of any problems with this, but holler if you do.
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*/
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tiny_allocation.x = tiny_allocation.y = -1;
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tiny_allocation.height = tiny_allocation.width = 0;
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gtk_widget_size_allocate (child->widget, &tiny_allocation);
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/* We're done if the special last item fits now. */
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if (child_allocation.y + last_child_allocation.height <=
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allocation->y + allocation->height) {
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last_child_allocation.y = child_allocation.y;
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gtk_widget_size_allocate (last_child->widget, &last_child_allocation);
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break;
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}
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/* If the special last item still doesn't fit, but we've
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* run out of earlier items, then the special last item is
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* just too darn tall. Let's squash it down to fit in the box's
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* allocation.
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*/
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if (children == NULL) {
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last_child_allocation.y = allocation->y;
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last_child_allocation.height = allocation->height;
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gtk_widget_size_allocate (last_child->widget, &last_child_allocation);
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}
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}
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}
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}
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}
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