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gimp/plug-ins/common/guillotine.c

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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 <http://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_("_Guillotine"),
"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/Transform");
}
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.");
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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