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gimp/app/widgets/gimpwidgets-utils.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpui.c
* Copyright (C) 1999 Michael Natterer <mitch@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "gimpwidgets-utils.h"
#include "libgimp/gimpintl.h"
extern gchar *prog_name;
static void gimp_message_box_close_callback (GtkWidget *widget,
gpointer data);
/*
* Message Boxes...
*/
typedef struct _MessageBox MessageBox;
struct _MessageBox
{
GtkWidget *mbox;
GtkWidget *repeat_label;
gchar *message;
gint repeat_count;
GtkCallback callback;
gpointer data;
};
/* the maximum number of concucrrent dialog boxes */
#define MESSAGE_BOX_MAXIMUM 4
static GList *message_boxes = NULL;
void
gimp_message_box (gchar *message,
GtkCallback callback,
gpointer data)
{
MessageBox *msg_box;
GtkWidget *mbox;
GtkWidget *vbox;
GtkWidget *label;
GList *list;
if (!message)
return;
if (g_list_length (message_boxes) > MESSAGE_BOX_MAXIMUM)
{
fprintf (stderr, "%s: %s\n", prog_name, message);
return;
}
for (list = message_boxes; list; list = list->next)
{
msg_box = list->data;
if (strcmp (msg_box->message, message) == 0)
{
msg_box->repeat_count++;
if (msg_box->repeat_count > 1)
{
gchar *text = g_strdup_printf (_("Message repeated %d times"),
msg_box->repeat_count);
gtk_label_set_text (GTK_LABEL (msg_box->repeat_label), text);
g_free (text);
gdk_window_raise (msg_box->mbox->window);
}
else
{
GtkWidget *hbox;
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (msg_box->mbox)->action_area),
hbox, TRUE, FALSE, 4);
msg_box->repeat_label = gtk_label_new (_("Message repeated once"));
gtk_container_add (GTK_CONTAINER (hbox), msg_box->repeat_label);
gtk_widget_show (msg_box->repeat_label);
gtk_widget_show (hbox);
gdk_window_raise (msg_box->mbox->window);
}
return;
}
}
if (g_list_length (message_boxes) == MESSAGE_BOX_MAXIMUM)
{
fprintf (stderr, "%s: %s\n", prog_name, message);
message = _("WARNING:\n"
"Too many open message dialogs.\n"
"Messages are redirected to stderr.");
}
msg_box = g_new0 (MessageBox, 1);
mbox = gimp_dialog_new (_("GIMP Message"), "gimp-message",
NULL, NULL,
GTK_WIN_POS_MOUSE,
FALSE, FALSE, FALSE,
GTK_STOCK_OK, gimp_message_box_close_callback,
msg_box, NULL, NULL, TRUE, TRUE,
NULL);
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (mbox)->vbox), vbox);
gtk_widget_show (vbox);
label = gtk_label_new (message);
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, FALSE, 0);
gtk_widget_show (label);
msg_box->mbox = mbox;
msg_box->message = g_strdup (message);
msg_box->callback = callback;
msg_box->data = data;
message_boxes = g_list_append (message_boxes, msg_box);
gtk_widget_show (mbox);
}
static void
gimp_message_box_close_callback (GtkWidget *widget,
gpointer data)
{
MessageBox *msg_box;
msg_box = (MessageBox *) data;
/* If there is a valid callback, invoke it */
if (msg_box->callback)
(* msg_box->callback) (widget, msg_box->data);
/* Destroy the box */
gtk_widget_destroy (msg_box->mbox);
/* make this box available again */
message_boxes = g_list_remove (message_boxes, msg_box);
g_free (msg_box->message);
g_free (msg_box);
}
/*
* A workaround for what I think is a GTK+ bug:
* If a dialog is hidden using gtk_widget_hide(),
* and was iconified before, it is still present
* in the window_list and can be deiconified by
* the user later. All subsequent calls to
* gtk_widget_hide() will then fail since the state
* of the widget is still INVISIBLE.
* Calling gdk_window_withdraw() seems to solve this.
* --Sven
*/
void
gimp_dialog_hide (GtkWidget *dialog)
{
g_return_if_fail (dialog != NULL && !GTK_WIDGET_NO_WINDOW (dialog));
gtk_widget_hide (dialog);
gdk_window_withdraw (dialog->window);
}
void
gimp_menu_position (GtkMenu *menu,
gint *x,
gint *y,
guint *button,
guint32 *activate_time)
{
GdkEvent *current_event;
GtkRequisition requisition;
gint pointer_x;
gint pointer_y;
gint screen_width;
gint screen_height;
g_return_if_fail (menu != NULL);
g_return_if_fail (x != NULL);
g_return_if_fail (y != NULL);
g_return_if_fail (button != NULL);
g_return_if_fail (activate_time != NULL);
gdk_window_get_pointer (NULL, &pointer_x, &pointer_y, NULL);
gtk_widget_size_request (GTK_WIDGET (menu), &requisition);
screen_width = gdk_screen_width () + 2;
screen_height = gdk_screen_height () + 2;
*x = CLAMP (pointer_x, 2, MAX (0, screen_width - requisition.width));
*y = CLAMP (pointer_y, 2, MAX (0, screen_height - requisition.height));
*x += (pointer_x <= *x) ? 2 : -2;
*y += (pointer_y <= *y) ? 2 : -2;
*x = MAX (*x, 0);
*y = MAX (*y, 0);
current_event = gtk_get_current_event ();
if (current_event && current_event->type == GDK_BUTTON_PRESS)
{
GdkEventButton *bevent;
bevent = (GdkEventButton *) current_event;
*button = bevent->button;
*activate_time = bevent->time;
}
else
{
*button = 0;
*activate_time = 0;
}
}
void
gimp_item_factory_popup_with_data (GtkItemFactory *item_factory,
gpointer data)
{
gint x, y;
guint button;
guint32 activate_time;
g_return_if_fail (GTK_IS_ITEM_FACTORY (item_factory));
gimp_menu_position (GTK_MENU (item_factory->widget),
&x, &y,
&button,
&activate_time);
gtk_item_factory_popup_with_data (item_factory,
data,
NULL,
x, y,
button,
activate_time);
}
typedef struct _GimpAccelContextData GimpAccelContextData;
struct _GimpAccelContextData
{
GtkItemFactory *item_factory;
GimpGetAccelContextFunc get_context_func;
gpointer get_context_data;
};
static gboolean
gimp_window_accel_key_press (GtkWidget *widget,
GdkEvent *event,
GimpAccelContextData *context_data)
{
gpointer accel_context;
accel_context =
context_data->get_context_func (context_data->get_context_data);
g_object_set_data (G_OBJECT (context_data->item_factory),
"gimp-accel-context", accel_context);
return FALSE;
}
static gboolean
gimp_window_accel_key_release (GtkWidget *widget,
GdkEvent *event,
GimpAccelContextData *context_data)
{
g_object_set_data (G_OBJECT (context_data->item_factory),
"gimp-accel-context", NULL);
return FALSE;
}
void
gimp_window_add_accel_group (GtkWindow *window,
GtkItemFactory *item_factory,
GimpGetAccelContextFunc get_context_func,
gpointer get_context_data)
{
if (get_context_func)
{
GimpAccelContextData *context_data;
context_data = g_new0 (GimpAccelContextData, 1);
context_data->item_factory = item_factory;
context_data->get_context_func = get_context_func;
context_data->get_context_data = get_context_data;
g_object_set_data_full (G_OBJECT (window), "gimp-accel-conext-data",
context_data,
(GDestroyNotify) g_free);
g_signal_connect (G_OBJECT (window), "key_press_event",
G_CALLBACK (gimp_window_accel_key_press),
context_data);
g_signal_connect (G_OBJECT (window), "key_release_event",
G_CALLBACK (gimp_window_accel_key_release),
context_data);
}
gtk_window_add_accel_group (window, item_factory->accel_group);
}
void
gimp_window_remove_accel_group (GtkWindow *window,
GtkItemFactory *item_factory)
{
GimpAccelContextData *context_data;
context_data = g_object_get_data (G_OBJECT (window),
"gimp-accel-conext-data");
if (context_data)
{
g_signal_handlers_disconnect_by_func (G_OBJECT (window),
G_CALLBACK (gimp_window_accel_key_press),
context_data);
g_signal_handlers_disconnect_by_func (G_OBJECT (window),
G_CALLBACK (gimp_window_accel_key_release),
context_data);
g_object_set_data (G_OBJECT (window), "gimp-accel-conext-data", NULL);
}
gtk_window_remove_accel_group (window, item_factory->accel_group);
}
gpointer
gimp_widget_get_callback_context (GtkWidget *widget)
{
GtkItemFactory *ifactory;
gpointer popup_context;
gpointer accel_context = NULL;
ifactory = gtk_item_factory_from_widget (widget);
popup_context = gtk_item_factory_popup_data_from_widget (widget);
if (ifactory)
accel_context = g_object_get_data (G_OBJECT (ifactory),
"gimp-accel-context");
if (popup_context)
return popup_context;
return accel_context;
}
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