gtk2/gtk/gtkdialog.c
Owen Taylor bcb6720d6e Remove spurious const.
Sat Mar  3 13:32:47 2001  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkimmodule.c (gtk_im_module_init): Remove spurious
	const.

	* gdk-pixbuf-2.0.pc.in gtk+-2.0.pc.in: Fix include path.

	* gtk/gtkdialog.c (gtk_dialog_set_default_response): If there
	is no focus widget for the dialog currently, grab the focus as well
	as the default.

	* gtk/gtkdialog.c (gtk_dialog_set_default_response): Get
	the action area's children to iterate through, not the
	dialog's children.
2001-03-03 18:39:33 +00:00

716 lines
20 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 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 "gtkbutton.h"
#include "gtkdialog.h"
#include "gtkhbbox.h"
#include "gtkhseparator.h"
#include "gtkvbox.h"
#include "gtksignal.h"
#include "gdkkeysyms.h"
#include "gtkmain.h"
static void gtk_dialog_class_init (GtkDialogClass *klass);
static void gtk_dialog_init (GtkDialog *dialog);
static gint gtk_dialog_key_press (GtkWidget *widget,
GdkEventKey *key);
static void gtk_dialog_add_buttons_valist (GtkDialog *dialog,
const gchar *first_button_text,
va_list args);
static gint gtk_dialog_delete_event_handler (GtkWidget *widget,
GdkEventAny *event,
gpointer user_data);
enum {
RESPONSE,
LAST_SIGNAL
};
static gpointer parent_class;
static guint dialog_signals[LAST_SIGNAL];
GtkType
gtk_dialog_get_type (void)
{
static GtkType dialog_type = 0;
if (!dialog_type)
{
static const GtkTypeInfo dialog_info =
{
"GtkDialog",
sizeof (GtkDialog),
sizeof (GtkDialogClass),
(GtkClassInitFunc) gtk_dialog_class_init,
(GtkObjectInitFunc) gtk_dialog_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
dialog_type = gtk_type_unique (GTK_TYPE_WINDOW, &dialog_info);
}
return dialog_type;
}
static void
gtk_dialog_class_init (GtkDialogClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = g_type_class_peek_parent (class);
widget_class->key_press_event = gtk_dialog_key_press;
dialog_signals[RESPONSE] =
gtk_signal_new ("response",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkDialogClass, response),
gtk_marshal_NONE__INT,
GTK_TYPE_NONE, 1,
GTK_TYPE_INT);
}
static void
gtk_dialog_init (GtkDialog *dialog)
{
GtkWidget *separator;
/* To avoid breaking old code that prevents destroy on delete event
* by connecting a handler, we have to have the FIRST signal
* connection on the dialog.
*/
gtk_signal_connect (GTK_OBJECT (dialog),
"delete_event",
GTK_SIGNAL_FUNC (gtk_dialog_delete_event_handler),
NULL);
dialog->vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (dialog->vbox), 2);
gtk_container_add (GTK_CONTAINER (dialog), dialog->vbox);
gtk_widget_show (dialog->vbox);
dialog->action_area = gtk_hbutton_box_new ();
gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog->action_area),
GTK_BUTTONBOX_END);
gtk_button_box_set_spacing (GTK_BUTTON_BOX (dialog->action_area), 5);
gtk_container_set_border_width (GTK_CONTAINER (dialog->action_area), 5);
gtk_box_pack_end (GTK_BOX (dialog->vbox), dialog->action_area,
FALSE, TRUE, 0);
gtk_widget_show (dialog->action_area);
separator = gtk_hseparator_new ();
gtk_box_pack_end (GTK_BOX (dialog->vbox), separator, FALSE, TRUE, 0);
gtk_widget_show (separator);
}
static gint
gtk_dialog_delete_event_handler (GtkWidget *widget,
GdkEventAny *event,
gpointer user_data)
{
/* emit response signal */
gtk_dialog_response (GTK_DIALOG (widget), GTK_RESPONSE_DELETE_EVENT);
/* Do the destroy by default */
return FALSE;
}
static gint
gtk_dialog_key_press (GtkWidget *widget,
GdkEventKey *key)
{
GdkEventAny event;
event.type = GDK_DELETE;
event.window = widget->window;
event.send_event = TRUE;
if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, key))
return TRUE;
if (key->keyval != GDK_Escape)
return FALSE;
/* Synthesize delete_event on key press. */
g_object_ref (G_OBJECT (event.window));
gtk_main_do_event ((GdkEvent*)&event);
g_object_unref (G_OBJECT (event.window));
return TRUE;
}
GtkWidget*
gtk_dialog_new (void)
{
return GTK_WIDGET (gtk_type_new (GTK_TYPE_DIALOG));
}
static GtkWidget*
gtk_dialog_new_empty (const gchar *title,
GtkWindow *parent,
GtkDialogFlags flags)
{
GtkDialog *dialog;
dialog = GTK_DIALOG (g_object_new (GTK_TYPE_DIALOG, NULL));
if (title)
gtk_window_set_title (GTK_WINDOW (dialog), title);
if (parent)
gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
if (flags & GTK_DIALOG_MODAL)
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
return GTK_WIDGET (dialog);
}
/**
* gtk_dialog_new_with_buttons:
* @title: Title of the dialog, or NULL
* @parent: Transient parent of the dialog, or NULL
* @flags: from #GtkDialogFlags
* @first_button_text: stock ID or text to go in first button, or NULL
* @Varargs: response ID for first button, then additional buttons, ending with NULL
*
* Creates a new #GtkDialog with title @title (or NULL for the default
* title; see gtk_window_set_title()) and transient parent @parent (or
* NULL for none; see gtk_window_set_transient_for()). The @flags
* argument can be used to make the dialog modal (GTK_DIALOG_MODAL)
* and/or to have it destroyed along with its transient parent
* (GTK_DIALOG_DESTROY_WITH_PARENT). After @flags, button
* text/response ID pairs should be listed, with a NULL pointer ending
* the list. Button text can be either a stock ID such as
* GTK_STOCK_BUTTON_OK, or some arbitrary text. A response ID can be
* any positive number, or one of the values in the #GtkResponseType
* enumeration. If the user clicks one of these dialog buttons,
* #GtkDialog will emit the "response" signal with the corresponding
* response ID. If a #GtkDialog receives the "delete_event" signal, it
* will emit "response" with a response ID of GTK_RESPONSE_NONE.
* However, destroying a dialog does not emit the "response" signal;
* so be careful relying on "response" when using
* the GTK_DIALOG_DESTROY_WITH_PARENT flag. Buttons are from left to right,
* so the first button in the list will be the leftmost button in the dialog.
*
* Here's a simple example:
* <programlisting>
* GtkWidget *dialog = gtk_dialog_new_with_buttons ("My dialog",
* main_app_window,
* GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
* GTK_STOCK_BUTTON_OK,
* GTK_RESPONSE_ACCEPT,
* GTK_STOCK_BUTTON_CANCEL,
* GTK_RESPONSE_REJECT,
* NULL);
* </programlisting>
*
* Return value: a new #GtkDialog
**/
GtkWidget*
gtk_dialog_new_with_buttons (const gchar *title,
GtkWindow *parent,
GtkDialogFlags flags,
const gchar *first_button_text,
...)
{
GtkDialog *dialog;
va_list args;
dialog = GTK_DIALOG (gtk_dialog_new_empty (title, parent, flags));
va_start (args, first_button_text);
gtk_dialog_add_buttons_valist (dialog,
first_button_text,
args);
va_end (args);
return GTK_WIDGET (dialog);
}
typedef struct _ResponseData ResponseData;
struct _ResponseData
{
gint response_id;
};
static ResponseData*
get_response_data (GtkWidget *widget)
{
ResponseData *ad = gtk_object_get_data (GTK_OBJECT (widget),
"gtk-dialog-response-data");
if (ad == NULL)
{
ad = g_new (ResponseData, 1);
gtk_object_set_data_full (GTK_OBJECT (widget),
"gtk-dialog-response-data",
ad,
g_free);
}
return ad;
}
static void
action_widget_activated (GtkWidget *widget, GtkDialog *dialog)
{
ResponseData *ad;
gint response_id;
g_return_if_fail (GTK_IS_DIALOG (dialog));
response_id = GTK_RESPONSE_NONE;
ad = get_response_data (widget);
g_assert (ad != NULL);
response_id = ad->response_id;
gtk_dialog_response (dialog, response_id);
}
/**
* gtk_dialog_add_action_widget:
* @dialog: a #GtkDialog
* @child: an activatable widget
* @response_id: response ID for @child
*
* Adds an activatable widget to the action area of a #GtkDialog,
* connecting a signal handler that will emit the "response" signal on
* the dialog when the widget is activated. The widget is appended to
* the end of the dialog's action area. If you want to add a
* non-activatable widget, simply pack it into the
* <literal>action_area</literal> field of the #GtkDialog struct.
*
**/
void
gtk_dialog_add_action_widget (GtkDialog *dialog,
GtkWidget *child,
gint response_id)
{
ResponseData *ad;
g_return_if_fail (GTK_IS_DIALOG (dialog));
g_return_if_fail (GTK_IS_WIDGET (child));
ad = get_response_data (child);
ad->response_id = response_id;
if (GTK_WIDGET_GET_CLASS (child)->activate_signal != 0)
{
const gchar* name =
gtk_signal_name (GTK_WIDGET_GET_CLASS (child)->activate_signal);
gtk_signal_connect_while_alive (GTK_OBJECT (child),
name,
GTK_SIGNAL_FUNC (action_widget_activated),
dialog,
GTK_OBJECT (dialog));
}
else
g_warning ("Only 'activatable' widgets can be packed into the action area of a GtkDialog");
gtk_box_pack_end (GTK_BOX (dialog->action_area),
child,
FALSE, TRUE, 5);
}
/**
* gtk_dialog_add_button:
* @dialog: a #GtkDialog
* @button_text: text of button, or stock ID
* @response_id: response ID for the button
*
* Adds a button with the given text (or a stock button, if @button_text is a
* stock ID) and sets things up so that clicking the button will emit the
* "response" signal with the given @response_id. The button is appended to the
* end of the dialog's action area. The button widget is returned, but usually
* you don't need it.
*
* Return value: the button widget that was added
**/
GtkWidget*
gtk_dialog_add_button (GtkDialog *dialog,
const gchar *button_text,
gint response_id)
{
GtkWidget *button;
g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
g_return_val_if_fail (button_text != NULL, NULL);
button = gtk_button_new_stock (button_text,
gtk_window_get_default_accel_group (GTK_WINDOW (dialog)));
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_widget_show (button);
gtk_dialog_add_action_widget (dialog,
button,
response_id);
return button;
}
static void
gtk_dialog_add_buttons_valist(GtkDialog *dialog,
const gchar *first_button_text,
va_list args)
{
const gchar* text;
gint response_id;
g_return_if_fail (GTK_IS_DIALOG (dialog));
if (first_button_text == NULL)
return;
text = first_button_text;
response_id = va_arg (args, gint);
while (text != NULL)
{
gtk_dialog_add_button (dialog, text, response_id);
text = va_arg (args, gchar*);
if (text == NULL)
break;
response_id = va_arg (args, int);
}
}
/**
* gtk_dialog_add_buttons:
* @dialog: a #GtkDialog
* @first_button_text: button text or stock ID
* @Varargs: response ID for first button, then more text-response_id pairs
*
* Adds more buttons, same as calling gtk_dialog_add_button()
* repeatedly. The variable argument list should be NULL-terminated
* as with gtk_dialog_new_with_buttons(). Each button must have both
* text and response ID.
*
**/
void
gtk_dialog_add_buttons (GtkDialog *dialog,
const gchar *first_button_text,
...)
{
va_list args;
va_start (args, first_button_text);
gtk_dialog_add_buttons_valist (dialog,
first_button_text,
args);
va_end (args);
}
/**
* gtk_dialog_set_response_sensitive:
* @dialog: a #GtkDialog
* @response_id: a response ID
* @setting: %TRUE for sensitive
*
* Calls gtk_widget_set_sensitive (widget, @setting) for each
* widget in the dialog's action area with the given @response_id.
* A convenient way to sensitize/desensitize dialog buttons.
*
**/
void
gtk_dialog_set_response_sensitive (GtkDialog *dialog,
gint response_id,
gboolean setting)
{
GList *children;
GList *tmp_list;
children = gtk_container_children (GTK_CONTAINER (dialog));
tmp_list = children;
while (tmp_list != NULL)
{
GtkWidget *widget = tmp_list->data;
ResponseData *rd = g_object_get_data (G_OBJECT (widget),
"gtk-dialog-response-data");
if (rd && rd->response_id == response_id)
gtk_widget_set_sensitive (widget, setting);
tmp_list = g_list_next (tmp_list);
}
g_list_free (children);
}
/**
* gtk_dialog_set_default_response:
* @dialog: a #GtkDialog
* @response_id: a response ID
*
* Sets the last widget in the dialog's action area with the given @response_id
* as the default widget for the dialog. Pressing "Enter" normally activates
* the default widget.
*
**/
void
gtk_dialog_set_default_response (GtkDialog *dialog,
gint response_id)
{
GList *children;
GList *tmp_list;
children = gtk_container_children (GTK_CONTAINER (dialog->action_area));
tmp_list = children;
while (tmp_list != NULL)
{
GtkWidget *widget = tmp_list->data;
ResponseData *rd = g_object_get_data (G_OBJECT (widget),
"gtk-dialog-response-data");
if (rd && rd->response_id == response_id)
{
gtk_widget_grab_default (widget);
if (!GTK_WINDOW (dialog)->focus_widget)
gtk_widget_grab_focus (widget);
}
tmp_list = g_list_next (tmp_list);
}
g_list_free (children);
}
/**
* gtk_dialog_response:
* @dialog: a #GtkDialog
* @response_id: response ID
*
* Emits the "response" signal with the given response ID. Used to
* indicate that the user has responded to the dialog in some way;
* typically either you or gtk_dialog_run() will be monitoring the
* "response" signal and take appropriate action.
**/
void
gtk_dialog_response (GtkDialog *dialog,
gint response_id)
{
g_return_if_fail (dialog != NULL);
g_return_if_fail (GTK_IS_DIALOG (dialog));
gtk_signal_emit (GTK_OBJECT (dialog),
dialog_signals[RESPONSE],
response_id);
}
typedef struct
{
GtkDialog *dialog;
gint response_id;
GMainLoop *loop;
} RunInfo;
static void
shutdown_loop (RunInfo *ri)
{
if (g_main_loop_is_running (ri->loop))
g_main_loop_quit (ri->loop);
}
static void
run_unmap_handler (GtkDialog *dialog, gpointer data)
{
RunInfo *ri = data;
shutdown_loop (ri);
}
static void
run_response_handler (GtkDialog *dialog,
gint response_id,
gpointer data)
{
RunInfo *ri;
ri = data;
ri->response_id = response_id;
shutdown_loop (ri);
}
static gint
run_delete_handler (GtkDialog *dialog,
GdkEventAny *event,
gpointer data)
{
RunInfo *ri = data;
shutdown_loop (ri);
/* emit response signal */
gtk_dialog_response (dialog, GTK_RESPONSE_NONE);
return TRUE; /* Do not destroy */
}
/**
* gtk_dialog_run:
* @dialog: a #GtkDialog
*
* Blocks in a recursive main loop until the @dialog either emits the
* response signal, or is destroyed. If the dialog is destroyed,
* gtk_dialog_run() returns GTK_RESPONSE_NONE. Otherwise, it returns
* the response ID from the "response" signal emission. Before
* entering the recursive main loop, gtk_dialog_run() calls
* gtk_widget_show() on the dialog for you. Note that you still
* need to show any children of the dialog yourself.
*
* During gtk_dialog_run(), the default behavior of "delete_event" is
* disabled; if the dialog receives "delete_event", it will not be
* destroyed as windows usually are, and gtk_dialog_run() will return
* GTK_RESPONSE_DELETE_EVENT. Also, during gtk_dialog_run() the dialog will be
* modal. You can force gtk_dialog_run() to return at any time by
* calling gtk_dialog_response() to emit the "response"
* signal. Destroying the dialog during gtk_dialog_run() is a very bad
* idea, because your post-run code won't know whether the dialog was
* destroyed or not.
*
* After gtk_dialog_run() returns, you are responsible for hiding or
* destroying the dialog if you wish to do so.
*
* Typical usage of this function might be:
* <programlisting>
* gint result = gtk_dialog_run (GTK_DIALOG (dialog));
* switch (result)
* {
* case GTK_RESPONSE_ACCEPT:
* do_application_specific_something ();
* break;
* default:
* do_nothing_since_dialog_was_cancelled ();
* break;
* }
* gtk_widget_destroy (dialog);
* </programlisting>
*
* Return value: response ID
**/
gint
gtk_dialog_run (GtkDialog *dialog)
{
RunInfo ri = { NULL, GTK_RESPONSE_NONE, NULL };
gboolean was_modal;
guint response_handler;
guint destroy_handler;
guint delete_handler;
g_return_val_if_fail (GTK_IS_DIALOG (dialog), -1);
gtk_object_ref (GTK_OBJECT (dialog));
if (!GTK_WIDGET_VISIBLE (dialog))
gtk_widget_show (GTK_WIDGET (dialog));
was_modal = GTK_WINDOW (dialog)->modal;
if (!was_modal)
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
response_handler =
gtk_signal_connect (GTK_OBJECT (dialog),
"response",
GTK_SIGNAL_FUNC (run_response_handler),
&ri);
destroy_handler =
gtk_signal_connect (GTK_OBJECT (dialog),
"unmap",
GTK_SIGNAL_FUNC (run_unmap_handler),
&ri);
delete_handler =
gtk_signal_connect (GTK_OBJECT (dialog),
"delete_event",
GTK_SIGNAL_FUNC (run_delete_handler),
&ri);
ri.loop = g_main_new (FALSE);
g_main_loop_run (ri.loop);
g_main_loop_unref (ri.loop);
ri.loop = NULL;
if (!GTK_OBJECT_DESTROYED (dialog))
{
if (!was_modal)
gtk_window_set_modal (GTK_WINDOW(dialog), FALSE);
gtk_signal_disconnect (GTK_OBJECT (dialog), destroy_handler);
gtk_signal_disconnect (GTK_OBJECT (dialog), response_handler);
gtk_signal_disconnect (GTK_OBJECT (dialog), delete_handler);
}
gtk_object_unref (GTK_OBJECT (dialog));
return ri.response_id;
}