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gimp/app/widgets/gimpbrushfactoryview.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpbrushfactoryview.c
* Copyright (C) 2001 Michael Natterer
*
* 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 "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpbrush.h"
#include "core/gimpbrushgenerated.h"
#include "core/gimpdatafactory.h"
#include "core/gimpmarshal.h"
#include "gimpcontainerview.h"
#include "gimpbrushfactoryview.h"
#include "libgimp/gimpintl.h"
static void gimp_brush_factory_view_class_init (GimpBrushFactoryViewClass *klass);
static void gimp_brush_factory_view_init (GimpBrushFactoryView *view);
static void gimp_brush_factory_view_destroy (GtkObject *object);
static void gimp_brush_factory_view_select_item (GimpContainerEditor *editor,
GimpViewable *viewable);
static void gimp_brush_factory_view_spacing_changed (GimpBrush *brush,
GimpBrushFactoryView *view);
static void gimp_brush_factory_view_spacing_update (GtkAdjustment *adjustment,
GimpBrushFactoryView *view);
static GimpDataFactoryViewClass *parent_class = NULL;
GtkType
gimp_brush_factory_view_get_type (void)
{
static guint view_type = 0;
if (! view_type)
{
GtkTypeInfo view_info =
{
"GimpBrushFactoryView",
sizeof (GimpBrushFactoryView),
sizeof (GimpBrushFactoryViewClass),
(GtkClassInitFunc) gimp_brush_factory_view_class_init,
(GtkObjectInitFunc) gimp_brush_factory_view_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
view_type = gtk_type_unique (GIMP_TYPE_DATA_FACTORY_VIEW, &view_info);
}
return view_type;
}
static void
gimp_brush_factory_view_class_init (GimpBrushFactoryViewClass *klass)
{
GtkObjectClass *object_class;
GimpContainerEditorClass *editor_class;
object_class = (GtkObjectClass *) klass;
editor_class = (GimpContainerEditorClass *) klass;
parent_class = gtk_type_class (GIMP_TYPE_DATA_FACTORY_VIEW);
object_class->destroy = gimp_brush_factory_view_destroy;
editor_class->select_item = gimp_brush_factory_view_select_item;
}
static void
gimp_brush_factory_view_init (GimpBrushFactoryView *view)
{
GtkWidget *table;
table = gtk_table_new (1, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_end (GTK_BOX (view), table, FALSE, FALSE, 0);
gtk_widget_show (table);
view->spacing_adjustment =
GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 1.0, 1000.0, 1.0, 1.0, 0.0));
view->spacing_scale = gtk_hscale_new (view->spacing_adjustment);
gtk_scale_set_value_pos (GTK_SCALE (view->spacing_scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (view->spacing_scale),
GTK_UPDATE_DELAYED);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Spacing:"), 1.0, 1.0,
view->spacing_scale, 1, FALSE);
g_signal_connect (G_OBJECT (view->spacing_adjustment), "value_changed",
G_CALLBACK (gimp_brush_factory_view_spacing_update),
view);
view->spacing_changed_handler_id = 0;
}
static void
gimp_brush_factory_view_destroy (GtkObject *object)
{
GimpBrushFactoryView *view;
view = GIMP_BRUSH_FACTORY_VIEW (object);
if (view->spacing_changed_handler_id)
{
gimp_container_remove_handler
(GIMP_CONTAINER_EDITOR (view)->view->container,
view->spacing_changed_handler_id);
view->spacing_changed_handler_id = 0;
}
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
GtkWidget *
gimp_brush_factory_view_new (GimpViewType view_type,
GimpDataFactory *factory,
GimpDataEditFunc edit_func,
GimpContext *context,
gboolean change_brush_spacing,
gint preview_size,
gint min_items_x,
gint min_items_y,
GimpContainerContextFunc context_func)
{
GimpBrushFactoryView *factory_view;
GimpContainerEditor *editor;
g_return_val_if_fail (factory != NULL, NULL);
g_return_val_if_fail (GIMP_IS_DATA_FACTORY (factory), NULL);
g_return_val_if_fail (preview_size > 0 && preview_size <= 64, NULL);
g_return_val_if_fail (min_items_x > 0 && min_items_x <= 64, NULL);
g_return_val_if_fail (min_items_y > 0 && min_items_y <= 64, NULL);
factory_view = g_object_new (GIMP_TYPE_BRUSH_FACTORY_VIEW, NULL);
factory_view->change_brush_spacing = change_brush_spacing;
if (! gimp_data_factory_view_construct (GIMP_DATA_FACTORY_VIEW (factory_view),
view_type,
factory,
edit_func,
context,
preview_size,
min_items_x,
min_items_y,
context_func))
{
g_object_unref (G_OBJECT (factory_view));
return NULL;
}
editor = GIMP_CONTAINER_EDITOR (factory_view);
gimp_container_add_handler
(editor->view->container, "spacing_changed",
G_CALLBACK (gimp_brush_factory_view_spacing_changed),
factory_view);
return GTK_WIDGET (factory_view);
}
static void
gimp_brush_factory_view_select_item (GimpContainerEditor *editor,
GimpViewable *viewable)
{
GimpBrushFactoryView *view;
gboolean edit_sensitive = FALSE;
gboolean spacing_sensitive = FALSE;
if (GIMP_CONTAINER_EDITOR_CLASS (parent_class)->select_item)
GIMP_CONTAINER_EDITOR_CLASS (parent_class)->select_item (editor, viewable);
view = GIMP_BRUSH_FACTORY_VIEW (editor);
if (viewable &&
gimp_container_have (GIMP_CONTAINER_EDITOR (view)->view->container,
GIMP_OBJECT (viewable)))
{
GimpBrush *brush;
brush = GIMP_BRUSH (viewable);
edit_sensitive = GIMP_IS_BRUSH_GENERATED (brush);
spacing_sensitive = TRUE;
g_signal_handlers_block_by_func (G_OBJECT (view->spacing_adjustment),
gimp_brush_factory_view_spacing_update,
view);
gtk_adjustment_set_value (view->spacing_adjustment,
gimp_brush_get_spacing (brush));
g_signal_handlers_unblock_by_func (G_OBJECT (view->spacing_adjustment),
gimp_brush_factory_view_spacing_update,
view);
}
gtk_widget_set_sensitive (GIMP_DATA_FACTORY_VIEW (view)->edit_button,
edit_sensitive);
gtk_widget_set_sensitive (view->spacing_scale, spacing_sensitive);
}
static void
gimp_brush_factory_view_spacing_changed (GimpBrush *brush,
GimpBrushFactoryView *view)
{
if (brush == GIMP_CONTAINER_EDITOR (view)->view->context->brush)
{
g_signal_handlers_block_by_func (G_OBJECT (view->spacing_adjustment),
gimp_brush_factory_view_spacing_update,
view);
gtk_adjustment_set_value (view->spacing_adjustment,
gimp_brush_get_spacing (brush));
g_signal_handlers_unblock_by_func (G_OBJECT (view->spacing_adjustment),
gimp_brush_factory_view_spacing_update,
view);
}
}
static void
gimp_brush_factory_view_spacing_update (GtkAdjustment *adjustment,
GimpBrushFactoryView *view)
{
GimpBrush *brush;
brush = GIMP_CONTAINER_EDITOR (view)->view->context->brush;
if (brush && view->change_brush_spacing)
{
g_signal_handlers_block_by_func (G_OBJECT (brush),
gimp_brush_factory_view_spacing_changed,
view);
gimp_brush_set_spacing (brush, adjustment->value);
g_signal_handlers_unblock_by_func (G_OBJECT (brush),
gimp_brush_factory_view_spacing_changed,
view);
}
}
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