gtk2/gtk/gtkstatusbar.c
Matthias Clasen 3612aee585 Add hidden aliases for exported symbols which are used internally in order
Mon Aug  9 12:48:04 2004  Matthias Clasen  <maclas@gmx.de>

	Add hidden aliases for exported symbols which are
	used internally in order to get rid of many PLT
	entries.  (#145519, Arjan van de Ven)

	* gtk/Makefile.am: Add rules to generate gtk.def and
	from gtk.symbols, and make make check check the abi
	with abicheck.sh.
	(gtk_private_h_sources): Add gtkinternals.h
	(gtk_built_private_headers): Add gtkalias.h
	(gtk_extra_sources): Add gtk.symbols
	(EXTRA_DIST): Add makegtkalias.pl and abicheck.sh

	* gtk/gtk.symbols: New file. Definition of the GTK+ ABI.
	The file can be processed by cpp to filter out certain
	subsets of symbols.

	* gtk/abicheck.sh: New file. Script to check the actually
	symbols exported from libgtk-x11.2.0.so against the symbols
	found in gtk.symbols.

	* gtk/makegtkalias.pl: New file. Perl script to generate the
	header containing the alias definitions for internally used
	exported symbols from a list of symbols.

	* gtk/gtkinternals.h: New file. An uninstalled header listing
	symbols which must be exported for some reason and do not appear
	in any other header.

	* gtk/*.c: Include gtkalias.h
2004-08-09 16:59:53 +00:00

805 lines
22 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* GtkStatusbar Copyright (C) 1998 Shawn T. Amundson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include "gtkalias.h"
#include "gtkframe.h"
#include "gtklabel.h"
#include "gtkmarshalers.h"
#include "gtkstatusbar.h"
#include "gtkwindow.h"
#include "gtkintl.h"
typedef struct _GtkStatusbarMsg GtkStatusbarMsg;
struct _GtkStatusbarMsg
{
gchar *text;
guint context_id;
guint message_id;
};
enum
{
SIGNAL_TEXT_PUSHED,
SIGNAL_TEXT_POPPED,
SIGNAL_LAST
};
enum
{
PROP_ZERO,
PROP_HAS_RESIZE_GRIP
};
static void gtk_statusbar_class_init (GtkStatusbarClass *class);
static void gtk_statusbar_init (GtkStatusbar *statusbar);
static void gtk_statusbar_destroy (GtkObject *object);
static void gtk_statusbar_update (GtkStatusbar *statusbar,
guint context_id,
const gchar *text);
static void gtk_statusbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_statusbar_realize (GtkWidget *widget);
static void gtk_statusbar_unrealize (GtkWidget *widget);
static void gtk_statusbar_map (GtkWidget *widget);
static void gtk_statusbar_unmap (GtkWidget *widget);
static gboolean gtk_statusbar_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_statusbar_expose_event (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_statusbar_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_statusbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_statusbar_direction_changed (GtkWidget *widget,
GtkTextDirection prev_dir);
static void gtk_statusbar_create_window (GtkStatusbar *statusbar);
static void gtk_statusbar_destroy_window (GtkStatusbar *statusbar);
static void gtk_statusbar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_statusbar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static GtkContainerClass *parent_class;
static guint statusbar_signals[SIGNAL_LAST] = { 0 };
GType
gtk_statusbar_get_type (void)
{
static GType statusbar_type = 0;
if (!statusbar_type)
{
static const GTypeInfo statusbar_info =
{
sizeof (GtkStatusbarClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_statusbar_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkStatusbar),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_statusbar_init,
};
statusbar_type = g_type_register_static (GTK_TYPE_HBOX, "GtkStatusbar",
&statusbar_info, 0);
}
return statusbar_type;
}
static void
gtk_statusbar_class_init (GtkStatusbarClass *class)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
gobject_class = (GObjectClass *) class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
parent_class = g_type_class_peek_parent (class);
gobject_class->set_property = gtk_statusbar_set_property;
gobject_class->get_property = gtk_statusbar_get_property;
object_class->destroy = gtk_statusbar_destroy;
widget_class->realize = gtk_statusbar_realize;
widget_class->unrealize = gtk_statusbar_unrealize;
widget_class->map = gtk_statusbar_map;
widget_class->unmap = gtk_statusbar_unmap;
widget_class->button_press_event = gtk_statusbar_button_press;
widget_class->expose_event = gtk_statusbar_expose_event;
widget_class->size_request = gtk_statusbar_size_request;
widget_class->size_allocate = gtk_statusbar_size_allocate;
widget_class->direction_changed = gtk_statusbar_direction_changed;
class->messages_mem_chunk = g_mem_chunk_new ("GtkStatusbar messages mem chunk",
sizeof (GtkStatusbarMsg),
sizeof (GtkStatusbarMsg) * 64,
G_ALLOC_AND_FREE);
class->text_pushed = gtk_statusbar_update;
class->text_popped = gtk_statusbar_update;
/**
* GtkStatusbar:has-resize-grip:
*
* Whether the statusbar has a grip for resizing the toplevel window.
*
* Since: 2.4
*/
g_object_class_install_property (gobject_class,
PROP_HAS_RESIZE_GRIP,
g_param_spec_boolean ("has_resize_grip",
P_("Has Resize Grip"),
P_("Whether the statusbar has a grip for resizing the toplevel"),
TRUE,
G_PARAM_READWRITE));
statusbar_signals[SIGNAL_TEXT_PUSHED] =
g_signal_new ("text_pushed",
G_OBJECT_CLASS_TYPE (class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkStatusbarClass, text_pushed),
NULL, NULL,
_gtk_marshal_VOID__UINT_STRING,
G_TYPE_NONE, 2,
G_TYPE_UINT,
G_TYPE_STRING);
statusbar_signals[SIGNAL_TEXT_POPPED] =
g_signal_new ("text_popped",
G_OBJECT_CLASS_TYPE (class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkStatusbarClass, text_popped),
NULL, NULL,
_gtk_marshal_VOID__UINT_STRING,
G_TYPE_NONE, 2,
G_TYPE_UINT,
G_TYPE_STRING);
gtk_widget_class_install_style_property (widget_class,
g_param_spec_enum ("shadow_type",
P_("Shadow type"),
P_("Style of bevel around the statusbar text"),
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_IN,
G_PARAM_READABLE));
}
static void
gtk_statusbar_init (GtkStatusbar *statusbar)
{
GtkBox *box;
GtkShadowType shadow_type;
box = GTK_BOX (statusbar);
box->spacing = 2;
box->homogeneous = FALSE;
statusbar->has_resize_grip = TRUE;
gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow_type", &shadow_type, NULL);
statusbar->frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
gtk_box_pack_start (box, statusbar->frame, TRUE, TRUE, 0);
gtk_widget_show (statusbar->frame);
statusbar->label = gtk_label_new ("");
gtk_misc_set_alignment (GTK_MISC (statusbar->label), 0.0, 0.5);
/* don't expand the size request for the label; if we
* do that then toplevels weirdly resize
*/
gtk_widget_set_size_request (statusbar->label, 1, -1);
gtk_container_add (GTK_CONTAINER (statusbar->frame), statusbar->label);
gtk_widget_show (statusbar->label);
statusbar->seq_context_id = 1;
statusbar->seq_message_id = 1;
statusbar->messages = NULL;
statusbar->keys = NULL;
}
GtkWidget*
gtk_statusbar_new (void)
{
return g_object_new (GTK_TYPE_STATUSBAR, NULL);
}
static void
gtk_statusbar_update (GtkStatusbar *statusbar,
guint context_id,
const gchar *text)
{
g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
if (!text)
text = "";
gtk_label_set_text (GTK_LABEL (statusbar->label), text);
}
guint
gtk_statusbar_get_context_id (GtkStatusbar *statusbar,
const gchar *context_description)
{
gchar *string;
guint *id;
g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
g_return_val_if_fail (context_description != NULL, 0);
/* we need to preserve namespaces on object datas */
string = g_strconcat ("gtk-status-bar-context:", context_description, NULL);
id = g_object_get_data (G_OBJECT (statusbar), string);
if (!id)
{
id = g_new (guint, 1);
*id = statusbar->seq_context_id++;
g_object_set_data_full (G_OBJECT (statusbar), string, id, g_free);
statusbar->keys = g_slist_prepend (statusbar->keys, string);
}
else
g_free (string);
return *id;
}
guint
gtk_statusbar_push (GtkStatusbar *statusbar,
guint context_id,
const gchar *text)
{
GtkStatusbarMsg *msg;
GtkStatusbarClass *class;
g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
g_return_val_if_fail (text != NULL, 0);
class = GTK_STATUSBAR_GET_CLASS (statusbar);
msg = g_chunk_new (GtkStatusbarMsg, class->messages_mem_chunk);
msg->text = g_strdup (text);
msg->context_id = context_id;
msg->message_id = statusbar->seq_message_id++;
statusbar->messages = g_slist_prepend (statusbar->messages, msg);
g_signal_emit (statusbar,
statusbar_signals[SIGNAL_TEXT_PUSHED],
0,
msg->context_id,
msg->text);
return msg->message_id;
}
void
gtk_statusbar_pop (GtkStatusbar *statusbar,
guint context_id)
{
GtkStatusbarMsg *msg;
g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
if (statusbar->messages)
{
GSList *list;
for (list = statusbar->messages; list; list = list->next)
{
msg = list->data;
if (msg->context_id == context_id)
{
GtkStatusbarClass *class;
class = GTK_STATUSBAR_GET_CLASS (statusbar);
statusbar->messages = g_slist_remove_link (statusbar->messages,
list);
g_free (msg->text);
g_mem_chunk_free (class->messages_mem_chunk, msg);
g_slist_free_1 (list);
break;
}
}
}
msg = statusbar->messages ? statusbar->messages->data : NULL;
g_signal_emit (statusbar,
statusbar_signals[SIGNAL_TEXT_POPPED],
0,
(guint) (msg ? msg->context_id : 0),
msg ? msg->text : NULL);
}
void
gtk_statusbar_remove (GtkStatusbar *statusbar,
guint context_id,
guint message_id)
{
GtkStatusbarMsg *msg;
g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
g_return_if_fail (message_id > 0);
msg = statusbar->messages ? statusbar->messages->data : NULL;
if (msg)
{
GSList *list;
/* care about signal emission if the topmost item is removed */
if (msg->context_id == context_id &&
msg->message_id == message_id)
{
gtk_statusbar_pop (statusbar, context_id);
return;
}
for (list = statusbar->messages; list; list = list->next)
{
msg = list->data;
if (msg->context_id == context_id &&
msg->message_id == message_id)
{
GtkStatusbarClass *class;
class = GTK_STATUSBAR_GET_CLASS (statusbar);
statusbar->messages = g_slist_remove_link (statusbar->messages, list);
g_free (msg->text);
g_mem_chunk_free (class->messages_mem_chunk, msg);
g_slist_free_1 (list);
break;
}
}
}
}
void
gtk_statusbar_set_has_resize_grip (GtkStatusbar *statusbar,
gboolean setting)
{
g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
setting = setting != FALSE;
if (setting != statusbar->has_resize_grip)
{
statusbar->has_resize_grip = setting;
gtk_widget_queue_draw (GTK_WIDGET (statusbar));
if (GTK_WIDGET_REALIZED (statusbar))
{
if (statusbar->has_resize_grip && statusbar->grip_window == NULL)
gtk_statusbar_create_window (statusbar);
else if (!statusbar->has_resize_grip && statusbar->grip_window != NULL)
gtk_statusbar_destroy_window (statusbar);
}
g_object_notify (G_OBJECT (statusbar), "has_resize_grip");
}
}
gboolean
gtk_statusbar_get_has_resize_grip (GtkStatusbar *statusbar)
{
g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), FALSE);
return statusbar->has_resize_grip;
}
static void
gtk_statusbar_destroy (GtkObject *object)
{
GtkStatusbar *statusbar;
GtkStatusbarClass *class;
GSList *list;
g_return_if_fail (GTK_IS_STATUSBAR (object));
statusbar = GTK_STATUSBAR (object);
class = GTK_STATUSBAR_GET_CLASS (statusbar);
for (list = statusbar->messages; list; list = list->next)
{
GtkStatusbarMsg *msg;
msg = list->data;
g_free (msg->text);
g_mem_chunk_free (class->messages_mem_chunk, msg);
}
g_slist_free (statusbar->messages);
statusbar->messages = NULL;
for (list = statusbar->keys; list; list = list->next)
g_free (list->data);
g_slist_free (statusbar->keys);
statusbar->keys = NULL;
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gtk_statusbar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkStatusbar *statusbar = GTK_STATUSBAR (object);
switch (prop_id)
{
case PROP_HAS_RESIZE_GRIP:
gtk_statusbar_set_has_resize_grip (statusbar, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_statusbar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkStatusbar *statusbar = GTK_STATUSBAR (object);
switch (prop_id)
{
case PROP_HAS_RESIZE_GRIP:
g_value_set_boolean (value, statusbar->has_resize_grip);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GdkWindowEdge
get_grip_edge (GtkStatusbar *statusbar)
{
GtkWidget *widget = GTK_WIDGET (statusbar);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
return GDK_WINDOW_EDGE_SOUTH_EAST;
else
return GDK_WINDOW_EDGE_SOUTH_WEST;
}
static void
get_grip_rect (GtkStatusbar *statusbar,
GdkRectangle *rect)
{
GtkWidget *widget;
gint w, h;
widget = GTK_WIDGET (statusbar);
/* These are in effect the max/default size of the grip. */
w = 18;
h = 18;
if (w > (widget->allocation.width))
w = widget->allocation.width;
if (h > (widget->allocation.height - widget->style->ythickness))
h = widget->allocation.height - widget->style->ythickness;
rect->width = w;
rect->height = h;
rect->y = widget->allocation.y + widget->allocation.height - h;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
rect->x = widget->allocation.x + widget->allocation.width - w;
else
rect->x = widget->allocation.x + widget->style->xthickness;
}
static void
set_grip_cursor (GtkStatusbar *statusbar)
{
if (statusbar->has_resize_grip)
{
GtkWidget *widget = GTK_WIDGET (statusbar);
GdkDisplay *display = gtk_widget_get_display (widget);
GdkCursorType cursor_type;
GdkCursor *cursor;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
cursor_type = GDK_BOTTOM_RIGHT_CORNER;
else
cursor_type = GDK_BOTTOM_LEFT_CORNER;
cursor = gdk_cursor_new_for_display (display, cursor_type);
gdk_window_set_cursor (statusbar->grip_window, cursor);
gdk_cursor_unref (cursor);
}
}
static void
gtk_statusbar_create_window (GtkStatusbar *statusbar)
{
GtkWidget *widget;
GdkWindowAttr attributes;
gint attributes_mask;
GdkRectangle rect;
g_return_if_fail (GTK_WIDGET_REALIZED (statusbar));
g_return_if_fail (statusbar->has_resize_grip);
widget = GTK_WIDGET (statusbar);
get_grip_rect (statusbar, &rect);
attributes.x = rect.x;
attributes.y = rect.y;
attributes.width = rect.width;
attributes.height = rect.height;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_ONLY;
attributes.event_mask = gtk_widget_get_events (widget) |
GDK_BUTTON_PRESS_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y;
statusbar->grip_window = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (statusbar->grip_window, widget);
set_grip_cursor (statusbar);
}
static void
gtk_statusbar_direction_changed (GtkWidget *widget,
GtkTextDirection prev_dir)
{
GtkStatusbar *statusbar = GTK_STATUSBAR (widget);
set_grip_cursor (statusbar);
}
static void
gtk_statusbar_destroy_window (GtkStatusbar *statusbar)
{
gdk_window_set_user_data (statusbar->grip_window, NULL);
gdk_window_destroy (statusbar->grip_window);
statusbar->grip_window = NULL;
}
static void
gtk_statusbar_realize (GtkWidget *widget)
{
GtkStatusbar *statusbar;
statusbar = GTK_STATUSBAR (widget);
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
if (statusbar->has_resize_grip)
gtk_statusbar_create_window (statusbar);
}
static void
gtk_statusbar_unrealize (GtkWidget *widget)
{
GtkStatusbar *statusbar;
statusbar = GTK_STATUSBAR (widget);
if (statusbar->grip_window)
gtk_statusbar_destroy_window (statusbar);
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_statusbar_map (GtkWidget *widget)
{
GtkStatusbar *statusbar;
statusbar = GTK_STATUSBAR (widget);
(* GTK_WIDGET_CLASS (parent_class)->map) (widget);
if (statusbar->grip_window)
gdk_window_show (statusbar->grip_window);
}
static void
gtk_statusbar_unmap (GtkWidget *widget)
{
GtkStatusbar *statusbar;
statusbar = GTK_STATUSBAR (widget);
if (statusbar->grip_window)
gdk_window_hide (statusbar->grip_window);
(* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
}
static gboolean
gtk_statusbar_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkStatusbar *statusbar;
GtkWidget *ancestor;
GdkWindowEdge edge;
statusbar = GTK_STATUSBAR (widget);
if (!statusbar->has_resize_grip ||
event->type != GDK_BUTTON_PRESS)
return FALSE;
ancestor = gtk_widget_get_toplevel (widget);
if (!GTK_IS_WINDOW (ancestor))
return FALSE;
edge = get_grip_edge (statusbar);
if (event->button == 1)
gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
edge,
event->button,
event->x_root, event->y_root,
event->time);
else if (event->button == 2)
gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
event->button,
event->x_root, event->y_root,
event->time);
else
return FALSE;
return TRUE;
}
static gboolean
gtk_statusbar_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GtkStatusbar *statusbar;
GdkRectangle rect;
statusbar = GTK_STATUSBAR (widget);
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
if (statusbar->has_resize_grip)
{
GdkWindowEdge edge;
edge = get_grip_edge (statusbar);
get_grip_rect (statusbar, &rect);
gtk_paint_resize_grip (widget->style,
widget->window,
GTK_WIDGET_STATE (widget),
NULL,
widget,
"statusbar",
edge,
rect.x, rect.y,
/* don't draw grip over the frame, though you
* can click on the frame.
*/
rect.width - widget->style->xthickness,
rect.height - widget->style->ythickness);
}
return FALSE;
}
static void
gtk_statusbar_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkStatusbar *statusbar;
GtkShadowType shadow_type;
statusbar = GTK_STATUSBAR (widget);
gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow_type", &shadow_type, NULL);
gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
if (statusbar->has_resize_grip)
{
GdkRectangle rect;
/* x, y in the grip rect depend on size allocation, but
* w, h do not so this is OK
*/
get_grip_rect (statusbar, &rect);
requisition->width += rect.width;
requisition->height = MAX (requisition->height, rect.height);
}
}
static void
gtk_statusbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkStatusbar *statusbar;
statusbar = GTK_STATUSBAR (widget);
if (statusbar->has_resize_grip)
{
GdkRectangle rect;
GtkRequisition saved_req;
widget->allocation = *allocation; /* get_grip_rect needs this info */
get_grip_rect (statusbar, &rect);
if (statusbar->grip_window)
gdk_window_move_resize (statusbar->grip_window,
rect.x, rect.y,
rect.width, rect.height);
/* enter the bad hack zone */
saved_req = widget->requisition;
widget->requisition.width -= rect.width; /* HBox::size_allocate needs this */
if (widget->requisition.width < 0)
widget->requisition.width = 0;
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
widget->requisition = saved_req;
}
else
{
/* chain up normally */
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
}
}