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gimp/app/widgets/gimpoverlaydialog.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpoverlaydialog.c
* Copyright (C) 2009-2010 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpmarshal.h"
#include "core/gimptoolinfo.h"
#include "gimpoverlaydialog.h"
enum
{
RESPONSE,
CLOSE,
LAST_SIGNAL
};
typedef struct _ResponseData ResponseData;
struct _ResponseData
{
gint response_id;
};
static void gimp_overlay_dialog_destroy (GtkObject *object);
static void gimp_overlay_dialog_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gimp_overlay_dialog_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gimp_overlay_dialog_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gimp_overlay_dialog_close (GimpOverlayDialog *dialog);
static ResponseData * get_response_data (GtkWidget *widget,
gboolean create);
G_DEFINE_TYPE (GimpOverlayDialog, gimp_overlay_dialog,
GIMP_TYPE_OVERLAY_FRAME)
static guint signals[LAST_SIGNAL] = { 0, };
#define parent_class gimp_overlay_dialog_parent_class
static void
gimp_overlay_dialog_class_init (GimpOverlayDialogClass *klass)
{
GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
gtk_object_class->destroy = gimp_overlay_dialog_destroy;
widget_class->size_request = gimp_overlay_dialog_size_request;
widget_class->size_allocate = gimp_overlay_dialog_size_allocate;
container_class->forall = gimp_overlay_dialog_forall;
klass->close = gimp_overlay_dialog_close;
signals[RESPONSE] =
g_signal_new ("response",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GimpOverlayDialogClass, response),
NULL, NULL,
gimp_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
signals[CLOSE] =
g_signal_new ("close",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GimpOverlayDialogClass, close),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_binding_entry_add_signal (gtk_binding_set_by_class (klass),
GDK_Escape, 0, "close", 0);
}
static void
gimp_overlay_dialog_init (GimpOverlayDialog *dialog)
{
dialog->action_area = gtk_hbutton_box_new ();
gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog->action_area),
GTK_BUTTONBOX_END);
gtk_widget_set_parent (dialog->action_area, GTK_WIDGET (dialog));
gtk_widget_show (dialog->action_area);
}
static void
gimp_overlay_dialog_destroy (GtkObject *object)
{
GimpOverlayDialog *dialog = GIMP_OVERLAY_DIALOG (object);
if (dialog->action_area)
{
gtk_widget_unparent (dialog->action_area);
dialog->action_area = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_overlay_dialog_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkContainer *container = GTK_CONTAINER (widget);
GimpOverlayDialog *dialog = GIMP_OVERLAY_DIALOG (widget);
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
GtkRequisition child_requisition;
GtkRequisition action_requisition;
gint border_width;
border_width = gtk_container_get_border_width (container);
requisition->width = border_width * 2;
requisition->height = border_width * 2;
if (child && gtk_widget_get_visible (child))
{
gtk_widget_size_request (child, &child_requisition);
}
else
{
child_requisition.width = 0;
child_requisition.height = 0;
}
gtk_widget_size_request (dialog->action_area, &action_requisition);
requisition->width += MAX (child_requisition.width,
action_requisition.width);
requisition->height += (child_requisition.height +
border_width +
action_requisition.height);
}
static void
gimp_overlay_dialog_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkContainer *container = GTK_CONTAINER (widget);
GimpOverlayDialog *dialog = GIMP_OVERLAY_DIALOG (widget);
GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
GtkRequisition action_requisition;
GtkAllocation child_allocation;
GtkAllocation action_allocation;
gint border_width;
gtk_widget_set_allocation (widget, allocation);
border_width = gtk_container_get_border_width (container);
gtk_widget_size_request (dialog->action_area, &action_requisition);
if (child && gtk_widget_get_visible (child))
{
child_allocation.x = allocation->x + border_width;
child_allocation.y = allocation->y + border_width;
child_allocation.width = MAX (allocation->width - 2 * border_width, 0);
child_allocation.height = MAX (allocation->height -
3 * border_width -
action_requisition.height, 0);
gtk_widget_size_allocate (child, &child_allocation);
}
action_allocation.x = allocation->x + border_width;
action_allocation.y = (child_allocation.y + child_allocation.height +
border_width);
action_allocation.width = MAX (allocation->width - 2 * border_width, 0);
action_allocation.height = MAX (action_requisition.height, 0);
gtk_widget_size_allocate (dialog->action_area, &action_allocation);
}
static void
gimp_overlay_dialog_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GTK_CONTAINER_CLASS (parent_class)->forall (container, include_internals,
callback, callback_data);
if (include_internals)
{
GimpOverlayDialog *dialog = GIMP_OVERLAY_DIALOG (container);
if (dialog->action_area)
(* callback) (dialog->action_area, callback_data);
}
}
static void
gimp_overlay_dialog_close (GimpOverlayDialog *dialog)
{
GList *children;
GList *list;
ResponseData *ad = NULL;
children = gtk_container_get_children (GTK_CONTAINER (dialog->action_area));
for (list = children; list; list = g_list_next (list))
{
GtkWidget *child = list->data;
ad = get_response_data (child, FALSE);
if (ad->response_id == GTK_RESPONSE_CLOSE ||
ad->response_id == GTK_RESPONSE_CANCEL)
{
break;
}
ad = NULL;
}
g_list_free (children);
if (ad)
gimp_overlay_dialog_response (dialog, ad->response_id);
}
GtkWidget *
gimp_overlay_dialog_new (GimpToolInfo *tool_info,
const gchar *desc,
...)
{
GtkWidget *dialog;
const gchar *stock_id;
va_list args;
g_return_val_if_fail (GIMP_IS_TOOL_INFO (tool_info), NULL);
stock_id = gimp_viewable_get_stock_id (GIMP_VIEWABLE (tool_info));
dialog = g_object_new (GIMP_TYPE_OVERLAY_DIALOG, NULL);
va_start (args, desc);
gimp_overlay_dialog_add_buttons_valist (GIMP_OVERLAY_DIALOG (dialog), args);
va_end (args);
return dialog;
}
void
gimp_overlay_dialog_response (GimpOverlayDialog *dialog,
gint response_id)
{
g_return_if_fail (GIMP_IS_OVERLAY_DIALOG (dialog));
g_signal_emit (dialog, signals[RESPONSE], 0,
response_id);
}
void
gimp_overlay_dialog_add_buttons_valist (GimpOverlayDialog *dialog,
va_list args)
{
const gchar *button_text;
gint response_id;
g_return_if_fail (GIMP_IS_OVERLAY_DIALOG (dialog));
while ((button_text = va_arg (args, const gchar *)))
{
response_id = va_arg (args, gint);
gimp_overlay_dialog_add_button (dialog, button_text, response_id);
}
}
static void
action_widget_activated (GtkWidget *widget,
GimpOverlayDialog *dialog)
{
ResponseData *ad = get_response_data (widget, FALSE);
gimp_overlay_dialog_response (dialog, ad->response_id);
}
GtkWidget *
gimp_overlay_dialog_add_button (GimpOverlayDialog *dialog,
const gchar *button_text,
gint response_id)
{
GtkWidget *button;
ResponseData *ad;
guint signal_id;
GClosure *closure;
g_return_val_if_fail (GIMP_IS_OVERLAY_DIALOG (dialog), NULL);
g_return_val_if_fail (button_text != NULL, NULL);
button = gtk_button_new_from_stock (button_text);
gtk_widget_set_can_default (button, TRUE);
gtk_widget_show (button);
ad = get_response_data (button, TRUE);
ad->response_id = response_id;
signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
G_OBJECT (dialog));
g_signal_connect_closure_by_id (button, signal_id, 0,
closure, FALSE);
gtk_box_pack_end (GTK_BOX (dialog->action_area), button, FALSE, TRUE, 0);
if (response_id == GTK_RESPONSE_HELP)
gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (dialog->action_area),
button, TRUE);
return button;
}
static void
response_data_free (gpointer data)
{
g_slice_free (ResponseData, data);
}
static ResponseData *
get_response_data (GtkWidget *widget,
gboolean create)
{
ResponseData *ad = g_object_get_data (G_OBJECT (widget),
"gimp-overlay-dialog-response-data");
if (! ad && create)
{
ad = g_slice_new (ResponseData);
g_object_set_data_full (G_OBJECT (widget),
"gimp-overlay-dialog-response-data",
ad, response_data_free);
}
return ad;
}
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