mirror of https://github.com/GNOME/gimp.git
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpmybrush-load.c
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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 3 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, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include <mypaint-brush.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "gimpmybrush.h"
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#include "gimpmybrush-load.h"
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#include "gimpmybrush-private.h"
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#include "gimp-intl.h"
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/* public functions */
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GList *
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gimp_mybrush_load (GimpContext *context,
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GFile *file,
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GInputStream *input,
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GError **error)
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{
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GimpMybrush *brush = NULL;
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MyPaintBrush *mypaint_brush;
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GdkPixbuf *pixbuf;
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GFileInfo *info;
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guint64 size;
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guchar *buffer;
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gchar *path;
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gchar *basename;
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gchar *preview_filename;
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gchar *p;
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g_return_val_if_fail (G_IS_FILE (file), NULL);
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g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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info = g_file_query_info (file,
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G_FILE_ATTRIBUTE_STANDARD_SIZE,
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G_FILE_QUERY_INFO_NONE,
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NULL, error);
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if (! info)
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return NULL;
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size = g_file_info_get_attribute_uint64 (info,
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G_FILE_ATTRIBUTE_STANDARD_SIZE);
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g_object_unref (info);
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if (size > 32768)
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{
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g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
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_("MyPaint brush file is unreasonably large, skipping."));
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return NULL;
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}
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buffer = g_new0 (guchar, size + 1);
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if (! g_input_stream_read_all (input, buffer, size, NULL, NULL, error))
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{
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g_free (buffer);
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return NULL;
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}
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mypaint_brush = mypaint_brush_new ();
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mypaint_brush_from_defaults (mypaint_brush);
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if (! mypaint_brush_from_string (mypaint_brush, (const gchar *) buffer))
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{
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g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
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_("Failed to deserialize MyPaint brush."));
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mypaint_brush_unref (mypaint_brush);
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g_free (buffer);
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return NULL;
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}
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path = g_file_get_path (file);
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basename = g_strndup (path, strlen (path) - 4);
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g_free (path);
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preview_filename = g_strconcat (basename, "_prev.png", NULL);
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g_free (basename);
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pixbuf = gdk_pixbuf_new_from_file_at_size (preview_filename,
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48, 48, error);
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g_free (preview_filename);
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basename = g_path_get_basename (gimp_file_get_utf8_name (file));
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basename[strlen (basename) - 4] = '\0';
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for (p = basename; *p; p++)
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if (*p == '_' || *p == '-')
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*p = ' ';
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brush = g_object_new (GIMP_TYPE_MYBRUSH,
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"name", basename,
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"mime-type", "image/x-gimp-myb",
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"icon-pixbuf", pixbuf,
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NULL);
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g_free (basename);
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if (pixbuf)
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g_object_unref (pixbuf);
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brush->priv->brush_json = (gchar *) buffer;
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brush->priv->radius =
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mypaint_brush_get_base_value (mypaint_brush,
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MYPAINT_BRUSH_SETTING_RADIUS_LOGARITHMIC);
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brush->priv->opaque =
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mypaint_brush_get_base_value (mypaint_brush,
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MYPAINT_BRUSH_SETTING_OPAQUE);
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brush->priv->hardness =
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mypaint_brush_get_base_value (mypaint_brush,
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MYPAINT_BRUSH_SETTING_HARDNESS);
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brush->priv->eraser =
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mypaint_brush_get_base_value (mypaint_brush,
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MYPAINT_BRUSH_SETTING_ERASER) > 0.5f;
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brush->priv->offset_by_random =
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mypaint_brush_get_base_value (mypaint_brush,
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MYPAINT_BRUSH_SETTING_OFFSET_BY_RANDOM);
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mypaint_brush_unref (mypaint_brush);
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return g_list_prepend (NULL, brush);
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}
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