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-rw-r--r--app/core/gimpmybrush-load.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/app/core/gimpmybrush-load.c b/app/core/gimpmybrush-load.c
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+++ b/app/core/gimpmybrush-load.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpmybrush-load.c
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include <mypaint-brush.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpmybrush.h"
+#include "gimpmybrush-load.h"
+#include "gimpmybrush-private.h"
+
+#include "gimp-intl.h"
+
+
+/* public functions */
+
+GList *
+gimp_mybrush_load (GimpContext *context,
+ GFile *file,
+ GInputStream *input,
+ GError **error)
+{
+ GimpMybrush *brush = NULL;
+ MyPaintBrush *mypaint_brush;
+ GdkPixbuf *pixbuf;
+ GFileInfo *info;
+ guint64 size;
+ guchar *buffer;
+ gchar *path;
+ gchar *basename;
+ gchar *preview_filename;
+ gchar *p;
+
+ g_return_val_if_fail (G_IS_FILE (file), NULL);
+ g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
+ g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+ info = g_file_query_info (file,
+ G_FILE_ATTRIBUTE_STANDARD_SIZE,
+ G_FILE_QUERY_INFO_NONE,
+ NULL, error);
+ if (! info)
+ return NULL;
+
+ size = g_file_info_get_attribute_uint64 (info,
+ G_FILE_ATTRIBUTE_STANDARD_SIZE);
+ g_object_unref (info);
+
+ if (size > 32768)
+ {
+ g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
+ _("MyPaint brush file is unreasonably large, skipping."));
+ return NULL;
+ }
+
+ buffer = g_new0 (guchar, size + 1);
+
+ if (! g_input_stream_read_all (input, buffer, size, NULL, NULL, error))
+ {
+ g_free (buffer);
+ return NULL;
+ }
+
+ mypaint_brush = mypaint_brush_new ();
+ mypaint_brush_from_defaults (mypaint_brush);
+
+ if (! mypaint_brush_from_string (mypaint_brush, (const gchar *) buffer))
+ {
+ g_set_error (error, GIMP_DATA_ERROR, GIMP_DATA_ERROR_READ,
+ _("Failed to deserialize MyPaint brush."));
+ mypaint_brush_unref (mypaint_brush);
+ g_free (buffer);
+ return NULL;
+ }
+
+ path = g_file_get_path (file);
+ basename = g_strndup (path, strlen (path) - 4);
+ g_free (path);
+
+ preview_filename = g_strconcat (basename, "_prev.png", NULL);
+ g_free (basename);
+
+ pixbuf = gdk_pixbuf_new_from_file_at_size (preview_filename,
+ 48, 48, error);
+ g_free (preview_filename);
+
+ basename = g_path_get_basename (gimp_file_get_utf8_name (file));
+
+ basename[strlen (basename) - 4] = '\0';
+ for (p = basename; *p; p++)
+ if (*p == '_' || *p == '-')
+ *p = ' ';
+
+ brush = g_object_new (GIMP_TYPE_MYBRUSH,
+ "name", basename,
+ "mime-type", "image/x-gimp-myb",
+ "icon-pixbuf", pixbuf,
+ NULL);
+
+ g_free (basename);
+
+ if (pixbuf)
+ g_object_unref (pixbuf);
+
+ brush->priv->brush_json = (gchar *) buffer;
+
+ brush->priv->radius =
+ mypaint_brush_get_base_value (mypaint_brush,
+ MYPAINT_BRUSH_SETTING_RADIUS_LOGARITHMIC);
+
+ brush->priv->opaque =
+ mypaint_brush_get_base_value (mypaint_brush,
+ MYPAINT_BRUSH_SETTING_OPAQUE);
+
+ brush->priv->hardness =
+ mypaint_brush_get_base_value (mypaint_brush,
+ MYPAINT_BRUSH_SETTING_HARDNESS);
+
+ brush->priv->eraser =
+ mypaint_brush_get_base_value (mypaint_brush,
+ MYPAINT_BRUSH_SETTING_ERASER) > 0.5f;
+
+ brush->priv->offset_by_random =
+ mypaint_brush_get_base_value (mypaint_brush,
+ MYPAINT_BRUSH_SETTING_OFFSET_BY_RANDOM);
+
+ mypaint_brush_unref (mypaint_brush);
+
+ return g_list_prepend (NULL, brush);
+}