2001-02-07 02:37:49 +00:00
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/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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2003-03-01 03:53:41 +00:00
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* gimppreviewrendererimage.c
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* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
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2001-02-07 02:37:49 +00:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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2001-05-08 03:48:54 +00:00
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#include "widgets-types.h"
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2001-02-07 02:37:49 +00:00
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2001-05-15 11:25:25 +00:00
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#include "base/temp-buf.h"
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2001-05-09 02:32:03 +00:00
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#include "core/gimpimage.h"
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2003-03-01 03:53:41 +00:00
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#include "gimppreviewrendererimage.h"
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2001-05-08 03:48:54 +00:00
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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static void gimp_preview_renderer_image_class_init (GimpPreviewRendererImageClass *klass);
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2003-03-03 17:19:30 +00:00
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static void gimp_preview_renderer_image_init (GimpPreviewRendererImage *renderer);
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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static void gimp_preview_renderer_image_render (GimpPreviewRenderer *renderer,
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GtkWidget *widget);
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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static GimpPreviewRendererClass *parent_class = NULL;
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2001-02-07 02:37:49 +00:00
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2001-08-10 14:41:39 +00:00
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GType
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2003-03-01 03:53:41 +00:00
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gimp_preview_renderer_image_get_type (void)
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2001-02-07 02:37:49 +00:00
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{
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2003-03-01 03:53:41 +00:00
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static GType renderer_type = 0;
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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if (! renderer_type)
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2001-02-07 02:37:49 +00:00
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{
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2003-03-01 03:53:41 +00:00
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static const GTypeInfo renderer_info =
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2001-02-07 02:37:49 +00:00
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{
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2003-03-01 03:53:41 +00:00
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sizeof (GimpPreviewRendererImageClass),
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2001-10-17 11:33:43 +00:00
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NULL, /* base_init */
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NULL, /* base_finalize */
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2003-03-01 03:53:41 +00:00
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(GClassInitFunc) gimp_preview_renderer_image_class_init,
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2001-10-17 11:33:43 +00:00
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NULL, /* class_finalize */
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NULL, /* class_data */
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2003-03-01 03:53:41 +00:00
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sizeof (GimpPreviewRendererImage),
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2001-10-17 11:33:43 +00:00
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0, /* n_preallocs */
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2003-03-01 03:53:41 +00:00
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(GInstanceInitFunc) gimp_preview_renderer_image_init,
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2001-02-07 02:37:49 +00:00
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};
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2003-03-01 03:53:41 +00:00
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renderer_type = g_type_register_static (GIMP_TYPE_PREVIEW_RENDERER,
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"GimpPreviewRendererImage",
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&renderer_info, 0);
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2001-02-07 02:37:49 +00:00
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}
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2003-03-01 03:53:41 +00:00
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return renderer_type;
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2001-02-07 02:37:49 +00:00
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}
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static void
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2003-03-01 03:53:41 +00:00
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gimp_preview_renderer_image_class_init (GimpPreviewRendererImageClass *klass)
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2001-02-07 02:37:49 +00:00
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{
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2003-03-01 03:53:41 +00:00
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GimpPreviewRendererClass *renderer_class;
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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renderer_class = GIMP_PREVIEW_RENDERER_CLASS (klass);
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2001-02-07 02:37:49 +00:00
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2001-08-10 14:41:39 +00:00
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parent_class = g_type_class_peek_parent (klass);
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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renderer_class->render = gimp_preview_renderer_image_render;
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2001-02-07 02:37:49 +00:00
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}
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static void
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2003-03-01 03:53:41 +00:00
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gimp_preview_renderer_image_init (GimpPreviewRendererImage *renderer)
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2001-02-07 02:37:49 +00:00
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{
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2003-03-01 03:53:41 +00:00
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renderer->channel = -1;
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2001-05-03 12:26:05 +00:00
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}
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2001-02-07 20:35:18 +00:00
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static void
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2003-03-01 03:53:41 +00:00
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gimp_preview_renderer_image_render (GimpPreviewRenderer *renderer,
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GtkWidget *widget)
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2001-02-07 02:37:49 +00:00
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{
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GimpImage *gimage;
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gint preview_width;
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gint preview_height;
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gboolean scaling_up;
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2003-03-06 16:47:34 +00:00
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TempBuf *render_buf = NULL;
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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gimage = GIMP_IMAGE (renderer->viewable);
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2001-02-07 02:37:49 +00:00
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2003-03-01 03:53:41 +00:00
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gimp_viewable_calc_preview_size (renderer->viewable,
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2003-02-21 19:03:19 +00:00
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gimage->width,
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gimage->height,
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2003-03-01 03:53:41 +00:00
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renderer->width,
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renderer->height,
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renderer->dot_for_dot,
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2003-02-21 19:03:19 +00:00
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gimage->xresolution,
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gimage->yresolution,
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&preview_width,
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&preview_height,
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&scaling_up);
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2001-02-07 02:37:49 +00:00
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if (scaling_up)
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{
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TempBuf *temp_buf;
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2003-03-01 03:53:41 +00:00
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temp_buf = gimp_viewable_get_new_preview (renderer->viewable,
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2001-02-07 02:37:49 +00:00
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gimage->width,
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gimage->height);
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2003-03-06 16:47:34 +00:00
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if (temp_buf)
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{
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render_buf = temp_buf_scale (temp_buf, preview_width, preview_height);
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temp_buf_free (temp_buf);
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}
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2001-02-07 02:37:49 +00:00
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}
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else
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{
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2003-03-01 03:53:41 +00:00
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render_buf = gimp_viewable_get_new_preview (renderer->viewable,
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2001-02-07 02:37:49 +00:00
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preview_width,
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preview_height);
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}
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2003-03-06 16:47:34 +00:00
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if (render_buf)
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2002-05-05 19:17:41 +00:00
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{
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2003-03-06 16:47:34 +00:00
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/* xresolution != yresolution */
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if (preview_width > renderer->width || preview_height > renderer->height)
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{
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TempBuf *temp_buf;
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2002-05-05 19:17:41 +00:00
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2003-03-06 16:47:34 +00:00
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temp_buf = temp_buf_scale (render_buf,
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renderer->width, renderer->height);
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2002-05-05 19:17:41 +00:00
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2003-03-06 16:47:34 +00:00
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temp_buf_free (render_buf);
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render_buf = temp_buf;
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}
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2002-05-05 19:17:41 +00:00
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2003-03-06 16:47:34 +00:00
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if (preview_width < renderer->width)
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render_buf->x = (renderer->width - preview_width) / 2;
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2003-03-01 03:53:41 +00:00
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2003-03-06 16:47:34 +00:00
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if (preview_height < renderer->height)
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render_buf->y = (renderer->height - preview_height) / 2;
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2001-02-07 02:37:49 +00:00
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2003-03-06 16:47:34 +00:00
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gimp_preview_renderer_render_buffer (renderer, render_buf,
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GIMP_PREVIEW_RENDERER_IMAGE (renderer)->channel,
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GIMP_PREVIEW_BG_CHECKS,
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GIMP_PREVIEW_BG_WHITE);
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2001-02-07 20:35:18 +00:00
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2003-03-06 16:47:34 +00:00
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temp_buf_free (render_buf);
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}
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else
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{
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const gchar *stock_id;
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stock_id = gimp_viewable_get_stock_id (renderer->viewable);
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gimp_preview_renderer_default_render_stock (renderer, widget, stock_id);
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}
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2001-02-07 02:37:49 +00:00
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}
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