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gimp/app/widgets/gimpviewablebutton.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpviewablebutton.c
* Copyright (C) 2003 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 <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpviewable.h"
#include "gimpcontainerpopup.h"
#include "gimpdialogfactory.h"
#include "gimppropwidgets.h"
#include "gimppreviewrenderer.h"
#include "gimpviewablebutton.h"
#include "gimp-intl.h"
static void gimp_viewable_button_class_init (GimpViewableButtonClass *klass);
static void gimp_viewable_button_init (GimpViewableButton *button);
static void gimp_viewable_button_destroy (GtkObject *object);
static gboolean gimp_viewable_button_scroll_event (GtkWidget *widget,
GdkEventScroll *sevent);
static void gimp_viewable_button_clicked (GtkButton *button);
static void gimp_viewable_button_popup_closed (GimpContainerPopup *popup,
GimpViewableButton *button);
static GimpButtonClass *parent_class = NULL;
GType
gimp_viewable_button_get_type (void)
{
static GType button_type = 0;
if (!button_type)
{
static const GTypeInfo button_info =
{
sizeof (GimpViewableButtonClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_viewable_button_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpViewableButton),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_viewable_button_init,
};
button_type = g_type_register_static (GIMP_TYPE_BUTTON,
"GimpViewableButton",
&button_info, 0);
}
return button_type;
}
static void
gimp_viewable_button_class_init (GimpViewableButtonClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkButtonClass *button_class;
object_class = GTK_OBJECT_CLASS (klass);
widget_class = GTK_WIDGET_CLASS (klass);
button_class = GTK_BUTTON_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->destroy = gimp_viewable_button_destroy;
widget_class->scroll_event = gimp_viewable_button_scroll_event;
button_class->clicked = gimp_viewable_button_clicked;
}
static void
gimp_viewable_button_init (GimpViewableButton *button)
{
button->popup_view_type = GIMP_VIEW_TYPE_LIST;
button->popup_preview_size = GIMP_PREVIEW_SIZE_SMALL;
button->preview_size = GIMP_PREVIEW_SIZE_SMALL;
button->preview_border_width = 1;
}
static void
gimp_viewable_button_destroy (GtkObject *object)
{
GimpViewableButton *button = GIMP_VIEWABLE_BUTTON (object);
if (button->dialog_identifier)
{
g_free (button->dialog_identifier);
button->dialog_identifier = NULL;
}
if (button->dialog_stock_id)
{
g_free (button->dialog_stock_id);
button->dialog_stock_id = NULL;
}
if (button->dialog_tooltip)
{
g_free (button->dialog_tooltip);
button->dialog_tooltip = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static gboolean
gimp_viewable_button_scroll_event (GtkWidget *widget,
GdkEventScroll *sevent)
{
GimpViewableButton *button = GIMP_VIEWABLE_BUTTON (widget);
GimpObject *object;
gint index;
object = gimp_context_get_by_type (button->context,
button->container->children_type);
index = gimp_container_get_child_index (button->container, object);
if (index != -1)
{
gint n_children;
gint new_index = index;
n_children = gimp_container_num_children (button->container);
if (sevent->direction == GDK_SCROLL_UP)
{
if (index > 0)
new_index--;
else
new_index = n_children - 1;
}
else if (sevent->direction == GDK_SCROLL_DOWN)
{
if (index == (n_children - 1))
new_index = 0;
else
new_index++;
}
if (new_index != index)
{
object = gimp_container_get_child_by_index (button->container,
new_index);
if (object)
gimp_context_set_by_type (button->context,
button->container->children_type,
object);
}
}
return TRUE;
}
static void
gimp_viewable_button_clicked (GtkButton *button)
{
GimpViewableButton *viewable_button = GIMP_VIEWABLE_BUTTON (button);
GtkWidget *popup;
popup = gimp_container_popup_new (viewable_button->container,
viewable_button->context,
viewable_button->popup_view_type,
viewable_button->preview_size,
viewable_button->popup_preview_size,
viewable_button->preview_border_width,
viewable_button->dialog_factory,
viewable_button->dialog_identifier,
viewable_button->dialog_stock_id,
viewable_button->dialog_tooltip);
g_signal_connect (popup, "cancel",
G_CALLBACK (gimp_viewable_button_popup_closed),
button);
g_signal_connect (popup, "confirm",
G_CALLBACK (gimp_viewable_button_popup_closed),
button);
gimp_container_popup_show (GIMP_CONTAINER_POPUP (popup), GTK_WIDGET (button));
}
static void
gimp_viewable_button_popup_closed (GimpContainerPopup *popup,
GimpViewableButton *button)
{
button->popup_view_type = popup->view_type;
button->popup_preview_size = popup->preview_size;
}
/* public functions */
GtkWidget *
gimp_viewable_button_new (GimpContainer *container,
GimpContext *context,
gint preview_size,
gint preview_border_width,
GimpDialogFactory *dialog_factory,
const gchar *dialog_identifier,
const gchar *dialog_stock_id,
const gchar *dialog_tooltip)
{
GimpViewableButton *button;
const gchar *prop_name;
g_return_val_if_fail (GIMP_IS_CONTAINER (container), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (preview_size > 0 &&
preview_size <= GIMP_VIEWABLE_MAX_BUTTON_SIZE, NULL);
g_return_val_if_fail (preview_border_width >= 0 &&
preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH,
NULL);
g_return_val_if_fail (dialog_factory == NULL ||
GIMP_IS_DIALOG_FACTORY (dialog_factory), NULL);
if (dialog_factory)
{
g_return_val_if_fail (dialog_identifier != NULL, NULL);
g_return_val_if_fail (dialog_stock_id != NULL, NULL);
g_return_val_if_fail (dialog_tooltip != NULL, NULL);
}
button = g_object_new (GIMP_TYPE_VIEWABLE_BUTTON, NULL);
button->container = container;
button->context = context;
button->popup_preview_size = preview_size;
button->preview_size = preview_size;
button->preview_border_width = preview_border_width;
if (dialog_factory)
{
button->dialog_factory = dialog_factory;
button->dialog_identifier = g_strdup (dialog_identifier);
button->dialog_stock_id = g_strdup (dialog_stock_id);
button->dialog_tooltip = g_strdup (dialog_tooltip);
}
prop_name = gimp_context_type_to_prop_name (container->children_type);
button->preview = gimp_prop_preview_new (G_OBJECT (context), prop_name,
button->preview_size);
gtk_container_add (GTK_CONTAINER (button), button->preview);
gtk_widget_show (button->preview);
return GTK_WIDGET (button);
}
void
gimp_viewable_button_set_view_type (GimpViewableButton *button,
GimpViewType view_type)
{
g_return_if_fail (GIMP_IS_VIEWABLE_BUTTON (button));
button->popup_view_type = view_type;
}
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