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+/*
+ * Guillotine plug-in v0.9 by Adam D. Moss, adam@foxbox.org. 1998/09/01
+ */
+
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <string.h>
+
+#include <libgimp/gimp.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_PROC "plug-in-guillotine"
+
+
+/* Declare local functions.
+ */
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static GList * guillotine (gint32 image_ID,
+ gboolean interactive);
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Input image" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable (unused)" }
+ };
+ static const GimpParamDef return_vals[] =
+ {
+ { GIMP_PDB_INT32, "image-count", "Number of images created" },
+ { GIMP_PDB_INT32ARRAY, "image-ids", "Output images" }
+ };
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ N_("Slice the image into subimages using guides"),
+ "This function takes an image and slices it along "
+ "its guides, creating new images. The original "
+ "image is not modified.",
+ "Adam D. Moss (adam@foxbox.org)",
+ "Adam D. Moss (adam@foxbox.org)",
+ "1998",
+ N_("Slice Using G_uides"),
+ "RGB*, INDEXED*, GRAY*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (args), G_N_ELEMENTS (return_vals),
+ args, return_vals);
+
+ gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Image/Crop");
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[3];
+ GimpRunMode run_mode = param[0].data.d_int32;
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+
+ *nreturn_vals = 3;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+ values[1].type = GIMP_PDB_INT32;
+ values[1].data.d_int32 = 0;
+ values[2].type = GIMP_PDB_INT32ARRAY;
+ values[2].data.d_int32array = NULL;
+
+ INIT_I18N();
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ GList *images;
+ GList *list;
+ gint i;
+
+ gimp_progress_init (_("Guillotine"));
+
+ images = guillotine (param[1].data.d_image,
+ run_mode == GIMP_RUN_INTERACTIVE);
+
+ values[1].data.d_int32 = g_list_length (images);
+ values[2].data.d_int32array = g_new (gint32, values[1].data.d_int32);
+
+ for (list = images, i = 0; list; list = g_list_next (list), i++)
+ {
+ values[2].data.d_int32array[i] = GPOINTER_TO_INT (list->data);
+ }
+
+ g_list_free (images);
+
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ gimp_displays_flush ();
+ }
+
+ values[0].data.d_status = status;
+}
+
+
+static gint
+guide_sort_func (gconstpointer a,
+ gconstpointer b)
+{
+ return GPOINTER_TO_INT (a) - GPOINTER_TO_INT (b);
+}
+
+static GList *
+guillotine (gint32 image_ID,
+ gboolean interactive)
+{
+ GList *images = NULL;
+ gint guide;
+ gint image_width;
+ gint image_height;
+ gboolean guides_found = FALSE;
+ GList *hguides, *hg;
+ GList *vguides, *vg;
+
+ image_width = gimp_image_width (image_ID);
+ image_height = gimp_image_height (image_ID);
+
+ hguides = g_list_append (NULL, GINT_TO_POINTER (0));
+ hguides = g_list_append (hguides, GINT_TO_POINTER (image_height));
+
+ vguides = g_list_append (NULL, GINT_TO_POINTER (0));
+ vguides = g_list_append (vguides, GINT_TO_POINTER (image_width));
+
+ for (guide = gimp_image_find_next_guide (image_ID, 0);
+ guide > 0;
+ guide = gimp_image_find_next_guide (image_ID, guide))
+ {
+ gint position = gimp_image_get_guide_position (image_ID, guide);
+
+ switch (gimp_image_get_guide_orientation (image_ID, guide))
+ {
+ case GIMP_ORIENTATION_HORIZONTAL:
+ if (! g_list_find (hguides, GINT_TO_POINTER (position)))
+ {
+ hguides = g_list_insert_sorted (hguides,
+ GINT_TO_POINTER (position),
+ guide_sort_func);
+ guides_found = TRUE;
+ }
+ break;
+
+ case GIMP_ORIENTATION_VERTICAL:
+ if (! g_list_find (vguides, GINT_TO_POINTER (position)))
+ {
+ vguides = g_list_insert_sorted (vguides,
+ GINT_TO_POINTER (position),
+ guide_sort_func);
+ guides_found = TRUE;
+ }
+ break;
+
+ case GIMP_ORIENTATION_UNKNOWN:
+ g_assert_not_reached ();
+ break;
+ }
+ }
+
+ if (guides_found)
+ {
+ gchar *filename;
+ gint h, v, hpad, vpad;
+ gint x, y;
+ gchar *hformat;
+ gchar *format;
+
+ filename = gimp_image_get_filename (image_ID);
+
+ if (! filename)
+ filename = g_strdup (_("Untitled"));
+
+ /* get the number horizontal and vertical slices */
+ h = g_list_length (hguides);
+ v = g_list_length (vguides);
+
+ /* need the number of digits of h and v for the padding */
+ hpad = log10(h) + 1;
+ vpad = log10(v) + 1;
+
+ /* format for the x-y coordinates in the filename */
+ hformat = g_strdup_printf ("%%0%i", MAX (hpad, vpad));
+ format = g_strdup_printf ("-%si-%si", hformat, hformat);
+
+ /* Do the actual dup'ing and cropping... this isn't a too naive a
+ * way to do this since we got copy-on-write tiles, either.
+ */
+ for (y = 0, hg = hguides; hg && hg->next; y++, hg = hg->next)
+ {
+ for (x = 0, vg = vguides; vg && vg->next; x++, vg = vg->next)
+ {
+ gint32 new_image = gimp_image_duplicate (image_ID);
+ GString *new_filename;
+ gchar *fileextension;
+ gchar *fileindex;
+ gint pos;
+
+ if (new_image == -1)
+ {
+ g_warning ("Couldn't create new image.");
+ g_free (hformat);
+ g_free (format);
+ return images;
+ }
+
+ gimp_image_undo_disable (new_image);
+
+ gimp_image_crop (new_image,
+ GPOINTER_TO_INT (vg->next->data) -
+ GPOINTER_TO_INT (vg->data),
+ GPOINTER_TO_INT (hg->next->data) -
+ GPOINTER_TO_INT (hg->data),
+ GPOINTER_TO_INT (vg->data),
+ GPOINTER_TO_INT (hg->data));
+
+
+ new_filename = g_string_new (filename);
+
+ /* show the rough coordinates of the image in the title */
+ fileindex = g_strdup_printf (format, x, y);
+
+ /* get the position of the file extension - last . in filename */
+ fileextension = strrchr (new_filename->str, '.');
+ pos = fileextension - new_filename->str;
+
+ /* insert the coordinates before the extension */
+ g_string_insert (new_filename, pos, fileindex);
+ g_free (fileindex);
+
+ gimp_image_set_filename (new_image, new_filename->str);
+ g_string_free (new_filename, TRUE);
+
+ while ((guide = gimp_image_find_next_guide (new_image, 0)))
+ gimp_image_delete_guide (new_image, guide);
+
+ gimp_image_undo_enable (new_image);
+
+ if (interactive)
+ gimp_display_new (new_image);
+
+ images = g_list_prepend (images, GINT_TO_POINTER (new_image));
+ }
+ }
+
+ g_free (filename);
+ g_free (hformat);
+ g_free (format);
+ }
+
+ g_list_free (hguides);
+ g_list_free (vguides);
+
+ return g_list_reverse (images);
+}
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