forked from AuroraMiddleware/gtk
060978e069
I submitted this patch twice to gtk-devel-list, and received no comments, so
am committing it. Although not exhaustively tested, I have been using this
gtk+ for a week w/o problems, and I did read the code to ensure that nothing
ever writes to these data structures. If by chance people encounter SEGV's in
gtk+ code that is setting values in global data structures, this patch could
be a possible culprit.
1998-11-30 Elliot Lee <sopwith@cuc.ml.org>
* {gdk,gtk}/*.c: Make read-only data structures "static const" to
allow them to be shared, mainly including (but not limited to) the
GtkTypeInfo structures for each class.
* gtk/gtkfilesel.c: Add /net to the "leave me alone" directory listing.
885 lines
29 KiB
C
885 lines
29 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This 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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This 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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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gtkscrolledwindow.h"
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#include "gtksignal.h"
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#define SCROLLBAR_SPACING(w) (GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (w)->klass)->scrollbar_spacing)
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enum {
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ARG_0,
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ARG_HADJUSTMENT,
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ARG_VADJUSTMENT,
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ARG_HSCROLLBAR_POLICY,
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ARG_VSCROLLBAR_POLICY,
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ARG_WINDOW_PLACEMENT
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};
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static void gtk_scrolled_window_class_init (GtkScrolledWindowClass *klass);
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static void gtk_scrolled_window_init (GtkScrolledWindow *scrolled_window);
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static void gtk_scrolled_window_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_scrolled_window_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_scrolled_window_destroy (GtkObject *object);
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static void gtk_scrolled_window_finalize (GtkObject *object);
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static void gtk_scrolled_window_map (GtkWidget *widget);
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static void gtk_scrolled_window_unmap (GtkWidget *widget);
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static void gtk_scrolled_window_draw (GtkWidget *widget,
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GdkRectangle *area);
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static void gtk_scrolled_window_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_scrolled_window_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_scrolled_window_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_scrolled_window_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_scrolled_window_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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static void gtk_scrolled_window_relative_allocation(GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_scrolled_window_adjustment_changed (GtkAdjustment *adjustment,
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gpointer data);
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static GtkContainerClass *parent_class = NULL;
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GtkType
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gtk_scrolled_window_get_type (void)
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{
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static GtkType scrolled_window_type = 0;
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if (!scrolled_window_type)
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{
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static const GtkTypeInfo scrolled_window_info =
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{
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"GtkScrolledWindow",
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sizeof (GtkScrolledWindow),
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sizeof (GtkScrolledWindowClass),
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(GtkClassInitFunc) gtk_scrolled_window_class_init,
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(GtkObjectInitFunc) gtk_scrolled_window_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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scrolled_window_type = gtk_type_unique (GTK_TYPE_BIN, &scrolled_window_info);
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}
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return scrolled_window_type;
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}
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static void
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gtk_scrolled_window_class_init (GtkScrolledWindowClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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parent_class = gtk_type_class (GTK_TYPE_BIN);
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gtk_object_add_arg_type ("GtkScrolledWindow::hadjustment",
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GTK_TYPE_ADJUSTMENT,
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GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
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ARG_HADJUSTMENT);
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gtk_object_add_arg_type ("GtkScrolledWindow::vadjustment",
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GTK_TYPE_ADJUSTMENT,
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GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
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ARG_VADJUSTMENT);
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gtk_object_add_arg_type ("GtkScrolledWindow::hscrollbar_policy",
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GTK_TYPE_POLICY_TYPE,
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GTK_ARG_READWRITE,
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ARG_HSCROLLBAR_POLICY);
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gtk_object_add_arg_type ("GtkScrolledWindow::vscrollbar_policy",
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GTK_TYPE_POLICY_TYPE,
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GTK_ARG_READWRITE,
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ARG_VSCROLLBAR_POLICY);
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gtk_object_add_arg_type ("GtkScrolledWindow::window_placement",
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GTK_TYPE_CORNER_TYPE,
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GTK_ARG_READWRITE,
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ARG_WINDOW_PLACEMENT);
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object_class->set_arg = gtk_scrolled_window_set_arg;
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object_class->get_arg = gtk_scrolled_window_get_arg;
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object_class->destroy = gtk_scrolled_window_destroy;
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object_class->finalize = gtk_scrolled_window_finalize;
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widget_class->map = gtk_scrolled_window_map;
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widget_class->unmap = gtk_scrolled_window_unmap;
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widget_class->draw = gtk_scrolled_window_draw;
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widget_class->size_request = gtk_scrolled_window_size_request;
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widget_class->size_allocate = gtk_scrolled_window_size_allocate;
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container_class->add = gtk_scrolled_window_add;
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container_class->remove = gtk_scrolled_window_remove;
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container_class->forall = gtk_scrolled_window_forall;
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class->scrollbar_spacing = 5;
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}
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static void
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gtk_scrolled_window_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkScrolledWindow *scrolled_window;
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scrolled_window = GTK_SCROLLED_WINDOW (object);
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switch (arg_id)
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{
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case ARG_HADJUSTMENT:
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gtk_scrolled_window_set_hadjustment (scrolled_window, GTK_VALUE_POINTER (*arg));
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break;
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case ARG_VADJUSTMENT:
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gtk_scrolled_window_set_vadjustment (scrolled_window, GTK_VALUE_POINTER (*arg));
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break;
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case ARG_HSCROLLBAR_POLICY:
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gtk_scrolled_window_set_policy (scrolled_window,
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GTK_VALUE_ENUM (*arg),
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scrolled_window->vscrollbar_policy);
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break;
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case ARG_VSCROLLBAR_POLICY:
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gtk_scrolled_window_set_policy (scrolled_window,
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scrolled_window->hscrollbar_policy,
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GTK_VALUE_ENUM (*arg));
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break;
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case ARG_WINDOW_PLACEMENT:
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gtk_scrolled_window_set_placement (scrolled_window,
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GTK_VALUE_ENUM (*arg));
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break;
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default:
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break;
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}
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}
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static void
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gtk_scrolled_window_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkScrolledWindow *scrolled_window;
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scrolled_window = GTK_SCROLLED_WINDOW (object);
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switch (arg_id)
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{
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case ARG_HADJUSTMENT:
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GTK_VALUE_POINTER (*arg) = gtk_scrolled_window_get_hadjustment (scrolled_window);
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break;
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case ARG_VADJUSTMENT:
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GTK_VALUE_POINTER (*arg) = gtk_scrolled_window_get_vadjustment (scrolled_window);
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break;
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case ARG_HSCROLLBAR_POLICY:
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GTK_VALUE_ENUM (*arg) = scrolled_window->hscrollbar_policy;
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break;
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case ARG_VSCROLLBAR_POLICY:
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GTK_VALUE_ENUM (*arg) = scrolled_window->vscrollbar_policy;
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break;
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case ARG_WINDOW_PLACEMENT:
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GTK_VALUE_ENUM (*arg) = scrolled_window->window_placement;
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break;
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default:
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arg->type = GTK_TYPE_INVALID;
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break;
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}
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}
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static void
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gtk_scrolled_window_init (GtkScrolledWindow *scrolled_window)
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{
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GTK_WIDGET_SET_FLAGS (scrolled_window, GTK_NO_WINDOW);
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gtk_container_set_resize_mode (GTK_CONTAINER (scrolled_window), GTK_RESIZE_QUEUE);
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scrolled_window->hscrollbar = NULL;
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scrolled_window->vscrollbar = NULL;
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scrolled_window->hscrollbar_policy = GTK_POLICY_ALWAYS;
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scrolled_window->vscrollbar_policy = GTK_POLICY_ALWAYS;
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scrolled_window->hscrollbar_visible = FALSE;
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scrolled_window->vscrollbar_visible = FALSE;
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scrolled_window->window_placement = GTK_CORNER_TOP_LEFT;
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}
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GtkWidget*
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gtk_scrolled_window_new (GtkAdjustment *hadjustment,
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GtkAdjustment *vadjustment)
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{
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GtkWidget *scrolled_window;
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if (hadjustment)
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g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadjustment), NULL);
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if (vadjustment)
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g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadjustment), NULL);
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scrolled_window = gtk_widget_new (GTK_TYPE_SCROLLED_WINDOW,
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"hadjustment", hadjustment,
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"vadjustment", vadjustment,
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NULL);
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return scrolled_window;
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}
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void
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gtk_scrolled_window_construct (GtkScrolledWindow *scrolled_window,
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GtkAdjustment *hadjustment,
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GtkAdjustment *vadjustment)
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{
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g_message ("gtk_scrolled_window_construct() is deprecated");
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gtk_scrolled_window_set_hadjustment (scrolled_window, hadjustment);
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gtk_scrolled_window_set_vadjustment (scrolled_window, vadjustment);
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gtk_object_default_construct (GTK_OBJECT (scrolled_window));
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}
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void
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gtk_scrolled_window_set_hadjustment (GtkScrolledWindow *scrolled_window,
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GtkAdjustment *hadjustment)
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{
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GtkBin *bin;
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g_return_if_fail (scrolled_window != NULL);
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g_return_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window));
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if (hadjustment)
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g_return_if_fail (GTK_IS_ADJUSTMENT (hadjustment));
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else
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hadjustment = (GtkAdjustment*) gtk_object_new (GTK_TYPE_ADJUSTMENT, NULL);
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bin = GTK_BIN (scrolled_window);
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if (!scrolled_window->hscrollbar)
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{
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gtk_widget_push_composite_child ();
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scrolled_window->hscrollbar = gtk_hscrollbar_new (hadjustment);
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gtk_widget_set_composite_name (scrolled_window->hscrollbar, "hscrollbar");
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gtk_widget_pop_composite_child ();
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gtk_widget_set_parent (scrolled_window->hscrollbar, GTK_WIDGET (scrolled_window));
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gtk_widget_ref (scrolled_window->hscrollbar);
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gtk_widget_show (scrolled_window->hscrollbar);
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}
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else
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{
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GtkAdjustment *old_adjustment;
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old_adjustment = gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar));
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if (old_adjustment == hadjustment)
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return;
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gtk_signal_disconnect_by_func (GTK_OBJECT (old_adjustment),
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GTK_SIGNAL_FUNC (gtk_scrolled_window_adjustment_changed),
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scrolled_window);
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gtk_range_set_adjustment (GTK_RANGE (scrolled_window->hscrollbar),
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hadjustment);
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}
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hadjustment = gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar));
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gtk_signal_connect (GTK_OBJECT (hadjustment),
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"changed",
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GTK_SIGNAL_FUNC (gtk_scrolled_window_adjustment_changed),
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scrolled_window);
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gtk_scrolled_window_adjustment_changed (hadjustment, scrolled_window);
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if (bin->child)
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gtk_widget_scroll_adjustements (bin->child,
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)));
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}
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void
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gtk_scrolled_window_set_vadjustment (GtkScrolledWindow *scrolled_window,
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GtkAdjustment *vadjustment)
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{
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GtkBin *bin;
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g_return_if_fail (scrolled_window != NULL);
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g_return_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window));
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if (vadjustment)
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g_return_if_fail (GTK_IS_ADJUSTMENT (vadjustment));
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else
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vadjustment = (GtkAdjustment*) gtk_object_new (GTK_TYPE_ADJUSTMENT, NULL);
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bin = GTK_BIN (scrolled_window);
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if (!scrolled_window->vscrollbar)
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{
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gtk_widget_push_composite_child ();
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scrolled_window->vscrollbar = gtk_vscrollbar_new (vadjustment);
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gtk_widget_set_composite_name (scrolled_window->vscrollbar, "vscrollbar");
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gtk_widget_pop_composite_child ();
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gtk_widget_set_parent (scrolled_window->vscrollbar, GTK_WIDGET (scrolled_window));
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gtk_widget_ref (scrolled_window->vscrollbar);
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gtk_widget_show (scrolled_window->vscrollbar);
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}
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else
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{
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GtkAdjustment *old_adjustment;
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old_adjustment = gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar));
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if (old_adjustment == vadjustment)
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return;
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gtk_signal_disconnect_by_func (GTK_OBJECT (old_adjustment),
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GTK_SIGNAL_FUNC (gtk_scrolled_window_adjustment_changed),
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scrolled_window);
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gtk_range_set_adjustment (GTK_RANGE (scrolled_window->vscrollbar),
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vadjustment);
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}
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vadjustment = gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar));
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gtk_signal_connect (GTK_OBJECT (vadjustment),
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"changed",
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GTK_SIGNAL_FUNC (gtk_scrolled_window_adjustment_changed),
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scrolled_window);
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gtk_scrolled_window_adjustment_changed (vadjustment, scrolled_window);
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if (bin->child)
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gtk_widget_scroll_adjustements (bin->child,
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)));
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}
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GtkAdjustment*
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gtk_scrolled_window_get_hadjustment (GtkScrolledWindow *scrolled_window)
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{
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g_return_val_if_fail (scrolled_window != NULL, NULL);
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g_return_val_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window), NULL);
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return (scrolled_window->hscrollbar ?
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)) :
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NULL);
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}
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GtkAdjustment*
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gtk_scrolled_window_get_vadjustment (GtkScrolledWindow *scrolled_window)
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{
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g_return_val_if_fail (scrolled_window != NULL, NULL);
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g_return_val_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window), NULL);
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return (scrolled_window->vscrollbar ?
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gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)) :
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NULL);
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}
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void
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gtk_scrolled_window_set_policy (GtkScrolledWindow *scrolled_window,
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GtkPolicyType hscrollbar_policy,
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GtkPolicyType vscrollbar_policy)
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{
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g_return_if_fail (scrolled_window != NULL);
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g_return_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window));
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if ((scrolled_window->hscrollbar_policy != hscrollbar_policy) ||
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(scrolled_window->vscrollbar_policy != vscrollbar_policy))
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{
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scrolled_window->hscrollbar_policy = hscrollbar_policy;
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scrolled_window->vscrollbar_policy = vscrollbar_policy;
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gtk_widget_queue_resize (GTK_WIDGET (scrolled_window));
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}
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}
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void
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gtk_scrolled_window_set_placement (GtkScrolledWindow *scrolled_window,
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GtkCornerType window_placement)
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{
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g_return_if_fail (scrolled_window != NULL);
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g_return_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window));
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if (scrolled_window->window_placement != window_placement)
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{
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scrolled_window->window_placement = window_placement;
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gtk_widget_queue_resize (GTK_WIDGET (scrolled_window));
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}
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}
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static void
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gtk_scrolled_window_destroy (GtkObject *object)
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{
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GtkScrolledWindow *scrolled_window;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GTK_IS_SCROLLED_WINDOW (object));
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scrolled_window = GTK_SCROLLED_WINDOW (object);
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gtk_widget_unparent (scrolled_window->hscrollbar);
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gtk_widget_unparent (scrolled_window->vscrollbar);
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gtk_widget_destroy (scrolled_window->hscrollbar);
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gtk_widget_destroy (scrolled_window->vscrollbar);
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
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}
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static void
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gtk_scrolled_window_finalize (GtkObject *object)
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{
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GtkScrolledWindow *scrolled_window;
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scrolled_window = GTK_SCROLLED_WINDOW (object);
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gtk_widget_unref (scrolled_window->hscrollbar);
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gtk_widget_unref (scrolled_window->vscrollbar);
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GTK_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
|
|
gtk_scrolled_window_map (GtkWidget *widget)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
|
|
/* chain parent class handler to map self and child */
|
|
GTK_WIDGET_CLASS (parent_class)->map (widget);
|
|
|
|
if (GTK_WIDGET_VISIBLE (scrolled_window->hscrollbar) &&
|
|
!GTK_WIDGET_MAPPED (scrolled_window->hscrollbar))
|
|
gtk_widget_map (scrolled_window->hscrollbar);
|
|
|
|
if (GTK_WIDGET_VISIBLE (scrolled_window->vscrollbar) &&
|
|
!GTK_WIDGET_MAPPED (scrolled_window->vscrollbar))
|
|
gtk_widget_map (scrolled_window->vscrollbar);
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_unmap (GtkWidget *widget)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
|
|
/* chain parent class handler to unmap self and child */
|
|
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
|
|
|
|
if (GTK_WIDGET_MAPPED (scrolled_window->hscrollbar))
|
|
gtk_widget_unmap (scrolled_window->hscrollbar);
|
|
|
|
if (GTK_WIDGET_MAPPED (scrolled_window->vscrollbar))
|
|
gtk_widget_unmap (scrolled_window->vscrollbar);
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_draw (GtkWidget *widget,
|
|
GdkRectangle *area)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
GtkBin *bin;
|
|
GdkRectangle child_area;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
|
|
g_return_if_fail (area != NULL);
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
bin = GTK_BIN (widget);
|
|
|
|
if (bin->child && GTK_WIDGET_VISIBLE (bin->child) &&
|
|
gtk_widget_intersect (bin->child, area, &child_area))
|
|
gtk_widget_draw (bin->child, &child_area);
|
|
|
|
if (GTK_WIDGET_VISIBLE (scrolled_window->hscrollbar) &&
|
|
gtk_widget_intersect (scrolled_window->hscrollbar, area, &child_area))
|
|
gtk_widget_draw (scrolled_window->hscrollbar, &child_area);
|
|
|
|
if (GTK_WIDGET_VISIBLE (scrolled_window->vscrollbar) &&
|
|
gtk_widget_intersect (scrolled_window->vscrollbar, area, &child_area))
|
|
gtk_widget_draw (scrolled_window->vscrollbar, &child_area);
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_forall (GtkContainer *container,
|
|
gboolean include_internals,
|
|
GtkCallback callback,
|
|
gpointer callback_data)
|
|
{
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (container));
|
|
g_return_if_fail (callback != NULL);
|
|
|
|
GTK_CONTAINER_CLASS (parent_class)->forall (container,
|
|
include_internals,
|
|
callback,
|
|
callback_data);
|
|
if (include_internals)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (container);
|
|
|
|
if (scrolled_window->vscrollbar)
|
|
callback (scrolled_window->vscrollbar, callback_data);
|
|
if (scrolled_window->hscrollbar)
|
|
callback (scrolled_window->hscrollbar, callback_data);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
GtkBin *bin;
|
|
gint extra_height;
|
|
gint extra_width;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
|
|
g_return_if_fail (requisition != NULL);
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
bin = GTK_BIN (scrolled_window);
|
|
|
|
requisition->width = 0;
|
|
requisition->height = 0;
|
|
|
|
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;
|
|
}
|
|
|
|
extra_width = 0;
|
|
extra_height = 0;
|
|
|
|
if ((scrolled_window->hscrollbar_policy == GTK_POLICY_AUTOMATIC) ||
|
|
GTK_WIDGET_VISIBLE (scrolled_window->hscrollbar))
|
|
{
|
|
gtk_widget_size_request (scrolled_window->hscrollbar,
|
|
&scrolled_window->hscrollbar->requisition);
|
|
|
|
requisition->width = MAX (requisition->width, scrolled_window->hscrollbar->requisition.width);
|
|
extra_height = SCROLLBAR_SPACING (scrolled_window) + scrolled_window->hscrollbar->requisition.height;
|
|
}
|
|
|
|
if ((scrolled_window->vscrollbar_policy == GTK_POLICY_AUTOMATIC) ||
|
|
GTK_WIDGET_VISIBLE (scrolled_window->vscrollbar))
|
|
{
|
|
gtk_widget_size_request (scrolled_window->vscrollbar,
|
|
&scrolled_window->vscrollbar->requisition);
|
|
|
|
requisition->height = MAX (requisition->height, scrolled_window->vscrollbar->requisition.height);
|
|
extra_width = SCROLLBAR_SPACING (scrolled_window) + scrolled_window->vscrollbar->requisition.width;
|
|
}
|
|
|
|
requisition->width += GTK_CONTAINER (widget)->border_width * 2 + extra_width;
|
|
requisition->height += GTK_CONTAINER (widget)->border_width * 2 + extra_height;
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_relative_allocation (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (allocation != NULL);
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
|
|
allocation->x = GTK_CONTAINER (widget)->border_width;
|
|
allocation->y = GTK_CONTAINER (widget)->border_width;
|
|
allocation->width = MAX (1, widget->allocation.width - allocation->x * 2);
|
|
allocation->height = MAX (1, widget->allocation.height - allocation->y * 2);
|
|
|
|
if (scrolled_window->vscrollbar_visible)
|
|
{
|
|
if (scrolled_window->window_placement == GTK_CORNER_TOP_RIGHT ||
|
|
scrolled_window->window_placement == GTK_CORNER_BOTTOM_RIGHT)
|
|
allocation->x += (scrolled_window->vscrollbar->requisition.width +
|
|
SCROLLBAR_SPACING (scrolled_window));
|
|
|
|
allocation->width = MAX (1, allocation->width -
|
|
(scrolled_window->vscrollbar->requisition.width +
|
|
SCROLLBAR_SPACING (scrolled_window)));
|
|
}
|
|
if (scrolled_window->hscrollbar_visible)
|
|
{
|
|
if (scrolled_window->window_placement == GTK_CORNER_BOTTOM_LEFT ||
|
|
scrolled_window->window_placement == GTK_CORNER_BOTTOM_RIGHT)
|
|
allocation->y += (scrolled_window->hscrollbar->requisition.height +
|
|
SCROLLBAR_SPACING (scrolled_window));
|
|
|
|
allocation->height = MAX (1, allocation->height -
|
|
(scrolled_window->hscrollbar->requisition.height +
|
|
SCROLLBAR_SPACING (scrolled_window)));
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
GtkBin *bin;
|
|
GtkAllocation relative_allocation;
|
|
GtkAllocation child_allocation;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
|
|
g_return_if_fail (allocation != NULL);
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (widget);
|
|
bin = GTK_BIN (scrolled_window);
|
|
|
|
widget->allocation = *allocation;
|
|
|
|
if (scrolled_window->hscrollbar_policy == GTK_POLICY_ALWAYS)
|
|
scrolled_window->hscrollbar_visible = TRUE;
|
|
if (scrolled_window->vscrollbar_policy == GTK_POLICY_ALWAYS)
|
|
scrolled_window->vscrollbar_visible = TRUE;
|
|
|
|
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
|
|
{
|
|
gboolean previous_hvis;
|
|
gboolean previous_vvis;
|
|
guint count = 0;
|
|
|
|
do
|
|
{
|
|
gtk_scrolled_window_relative_allocation (widget, &relative_allocation);
|
|
|
|
child_allocation.x = relative_allocation.x + allocation->x;
|
|
child_allocation.y = relative_allocation.y + allocation->y;
|
|
child_allocation.width = relative_allocation.width;
|
|
child_allocation.height = relative_allocation.height;
|
|
|
|
previous_hvis = scrolled_window->hscrollbar_visible;
|
|
previous_vvis = scrolled_window->vscrollbar_visible;
|
|
|
|
gtk_widget_size_allocate (bin->child, &child_allocation);
|
|
|
|
/* If, after the first iteration, the hscrollbar and the
|
|
* vscrollbar flip visiblity, then we need both.
|
|
*/
|
|
if (count &&
|
|
previous_hvis != scrolled_window->hscrollbar_visible &&
|
|
previous_vvis != scrolled_window->vscrollbar_visible)
|
|
{
|
|
scrolled_window->hscrollbar_visible = TRUE;
|
|
scrolled_window->vscrollbar_visible = TRUE;
|
|
|
|
/* a new resize is already queued at this point,
|
|
* so we will immediatedly get reinvoked
|
|
*/
|
|
return;
|
|
}
|
|
|
|
count++;
|
|
}
|
|
while (previous_hvis != scrolled_window->hscrollbar_visible ||
|
|
previous_vvis != scrolled_window->vscrollbar_visible);
|
|
}
|
|
else
|
|
gtk_scrolled_window_relative_allocation (widget, &relative_allocation);
|
|
|
|
if (scrolled_window->hscrollbar_visible)
|
|
{
|
|
if (!GTK_WIDGET_VISIBLE (scrolled_window->hscrollbar))
|
|
gtk_widget_show (scrolled_window->hscrollbar);
|
|
|
|
child_allocation.x = relative_allocation.x;
|
|
if (scrolled_window->window_placement == GTK_CORNER_TOP_LEFT ||
|
|
scrolled_window->window_placement == GTK_CORNER_TOP_RIGHT)
|
|
child_allocation.y = (relative_allocation.y +
|
|
relative_allocation.height +
|
|
SCROLLBAR_SPACING (scrolled_window));
|
|
else
|
|
child_allocation.y = GTK_CONTAINER (scrolled_window)->border_width;
|
|
|
|
child_allocation.width = relative_allocation.width;
|
|
child_allocation.height = scrolled_window->hscrollbar->requisition.height;
|
|
child_allocation.x += allocation->x;
|
|
child_allocation.y += allocation->y;
|
|
|
|
gtk_widget_size_allocate (scrolled_window->hscrollbar, &child_allocation);
|
|
}
|
|
else if (GTK_WIDGET_VISIBLE (scrolled_window->hscrollbar))
|
|
gtk_widget_hide (scrolled_window->hscrollbar);
|
|
|
|
if (scrolled_window->vscrollbar_visible)
|
|
{
|
|
if (!GTK_WIDGET_VISIBLE (scrolled_window->vscrollbar))
|
|
gtk_widget_show (scrolled_window->vscrollbar);
|
|
|
|
if (scrolled_window->window_placement == GTK_CORNER_TOP_LEFT ||
|
|
scrolled_window->window_placement == GTK_CORNER_BOTTOM_LEFT)
|
|
child_allocation.x = (relative_allocation.x +
|
|
relative_allocation.width +
|
|
SCROLLBAR_SPACING (scrolled_window));
|
|
else
|
|
child_allocation.x = GTK_CONTAINER (scrolled_window)->border_width;
|
|
|
|
child_allocation.y = relative_allocation.y;
|
|
child_allocation.width = scrolled_window->vscrollbar->requisition.width;
|
|
child_allocation.height = relative_allocation.height;
|
|
child_allocation.x += allocation->x;
|
|
child_allocation.y += allocation->y;
|
|
|
|
gtk_widget_size_allocate (scrolled_window->vscrollbar, &child_allocation);
|
|
}
|
|
else if (GTK_WIDGET_VISIBLE (scrolled_window->vscrollbar))
|
|
gtk_widget_hide (scrolled_window->vscrollbar);
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_scrolled_window_adjustment_changed (GtkAdjustment *adjustment,
|
|
gpointer data)
|
|
{
|
|
GtkScrolledWindow *scrolled_win;
|
|
|
|
g_return_if_fail (adjustment != NULL);
|
|
g_return_if_fail (data != NULL);
|
|
|
|
scrolled_win = GTK_SCROLLED_WINDOW (data);
|
|
|
|
if (adjustment == gtk_range_get_adjustment (GTK_RANGE (scrolled_win->hscrollbar)))
|
|
{
|
|
if (scrolled_win->hscrollbar_policy == GTK_POLICY_AUTOMATIC)
|
|
{
|
|
gboolean visible;
|
|
|
|
visible = scrolled_win->hscrollbar_visible;
|
|
scrolled_win->hscrollbar_visible = (adjustment->upper - adjustment->lower >
|
|
adjustment->page_size);
|
|
if (scrolled_win->hscrollbar_visible != visible)
|
|
gtk_widget_queue_resize (GTK_WIDGET (scrolled_win));
|
|
}
|
|
}
|
|
else if (adjustment == gtk_range_get_adjustment (GTK_RANGE (scrolled_win->vscrollbar)))
|
|
{
|
|
if (scrolled_win->vscrollbar_policy == GTK_POLICY_AUTOMATIC)
|
|
{
|
|
gboolean visible;
|
|
|
|
visible = scrolled_win->vscrollbar_visible;
|
|
scrolled_win->vscrollbar_visible = (adjustment->upper - adjustment->lower >
|
|
adjustment->page_size);
|
|
if (scrolled_win->vscrollbar_visible != visible)
|
|
gtk_widget_queue_resize (GTK_WIDGET (scrolled_win));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_add (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
GtkScrolledWindow *scrolled_window;
|
|
GtkBin *bin;
|
|
|
|
bin = GTK_BIN (container);
|
|
g_return_if_fail (bin->child == NULL);
|
|
|
|
scrolled_window = GTK_SCROLLED_WINDOW (container);
|
|
|
|
gtk_widget_set_parent (child, GTK_WIDGET (bin));
|
|
bin->child = child;
|
|
|
|
/* this is a temporary message */
|
|
if (!gtk_widget_scroll_adjustements (child,
|
|
gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
|
|
gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar))))
|
|
g_message ("gtk_scrolled_window_add(): cannot add non scrollable widget "
|
|
"use gtk_scrolled_window_add_with_viewport() instead");
|
|
|
|
if (GTK_WIDGET_VISIBLE (child->parent))
|
|
{
|
|
if (GTK_WIDGET_REALIZED (child->parent) &&
|
|
!GTK_WIDGET_REALIZED (child))
|
|
gtk_widget_realize (child);
|
|
|
|
if (GTK_WIDGET_MAPPED (child->parent) &&
|
|
!GTK_WIDGET_MAPPED (child))
|
|
gtk_widget_map (child);
|
|
}
|
|
|
|
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (container))
|
|
gtk_widget_queue_resize (child);
|
|
}
|
|
|
|
static void
|
|
gtk_scrolled_window_remove (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
g_return_if_fail (container != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (container));
|
|
g_return_if_fail (child != NULL);
|
|
g_return_if_fail (GTK_BIN (container)->child == child);
|
|
|
|
gtk_widget_scroll_adjustements (child, NULL, NULL);
|
|
|
|
/* chain parent class handler to remove child */
|
|
GTK_CONTAINER_CLASS (parent_class)->remove (container, child);
|
|
}
|
|
|
|
void
|
|
gtk_scrolled_window_add_with_viewport (GtkScrolledWindow *scrolled_window,
|
|
GtkWidget *child)
|
|
{
|
|
GtkBin *bin;
|
|
GtkWidget *viewport;
|
|
|
|
g_return_if_fail (scrolled_window != NULL);
|
|
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (scrolled_window));
|
|
g_return_if_fail (child != NULL);
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (child->parent == NULL);
|
|
|
|
bin = GTK_BIN (scrolled_window);
|
|
|
|
if (bin->child != NULL)
|
|
{
|
|
g_return_if_fail (GTK_IS_VIEWPORT (bin->child));
|
|
g_return_if_fail (GTK_BIN (bin->child)->child == NULL);
|
|
|
|
viewport = bin->child;
|
|
}
|
|
else
|
|
{
|
|
viewport =
|
|
gtk_viewport_new (gtk_scrolled_window_get_hadjustment (scrolled_window),
|
|
gtk_scrolled_window_get_vadjustment (scrolled_window));
|
|
gtk_container_add (GTK_CONTAINER (scrolled_window), viewport);
|
|
}
|
|
|
|
gtk_widget_show (viewport);
|
|
gtk_container_add (GTK_CONTAINER (viewport), child);
|
|
}
|