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gimp/plug-ins/common/file-gih.c

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/* Plug-in to load and export .gih (GIMP Brush Pipe) files.
*
* Copyright (C) 1999 Tor Lillqvist
* Copyright (C) 2000 Jens Lautenbacher, Sven Neumann
*
* 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/>.
*/
/* Example of how to call file_gih_save from script-fu:
(let ((ranks (cons-array 1 'byte)))
(aset ranks 0 12)
(file-gih-save 1
img
drawable
"foo.gih"
"foo.gih"
100
"test brush"
125
125
3
4
1
ranks
1
'("random")))
*/
#include "config.h"
#include <stdlib.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include <libgimpbase/gimpparasiteio.h>
#include "app/core/gimpbrush-header.h"
#include "app/core/gimppattern-header.h"
#include "libgimp/stdplugins-intl.h"
#define LOAD_PROC "file-gih-load"
#define SAVE_PROC "file-gih-save"
#define PLUG_IN_BINARY "file-gih"
#define PLUG_IN_ROLE "gimp-file-gih"
/* Parameters applicable each time we export a gih, exported in the
* main gimp application between invocations of this plug-in.
*/
typedef struct
{
gchar description[256];
gint spacing;
} BrushInfo;
typedef struct
{
GimpOrientationType orientation;
gint32 image;
gint32 toplayer;
gint nguides;
gint32 *guides;
gint *value;
GtkWidget *count_label; /* Corresponding count adjustment, */
gint *count; /* cols or rows */
gint *other_count; /* and the other one */
GtkAdjustment *ncells;
GtkAdjustment *rank0;
GtkWidget *warning_label;
GtkWidget *rank_entry[GIMP_PIXPIPE_MAXDIM];
GtkWidget *mode_entry[GIMP_PIXPIPE_MAXDIM];
} SizeAdjustmentData;
/* local function prototypes */
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 gih_load_image (GFile *file,
GError **error);
static gboolean gih_load_one_brush (GInputStream *input,
gint32 image_ID,
GError **error);
static gboolean gih_save_dialog (gint32 image_ID);
static gboolean gih_save_one_brush (GOutputStream *output,
gint32 drawable_ID,
GeglRectangle *rect,
const gchar *name,
GError **error);
static gboolean gih_save_image (GFile *file,
gint32 image_ID,
gint32 orig_image_ID,
gint32 drawable_ID,
GError **error);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* private variables */
static BrushInfo info =
{
"GIMP Brush Pipe",
20
};
static gint num_layers = 0;
static GimpPixPipeParams gihparams = { 0, };
static const gchar * const selection_modes[] = { "incremental",
"angular",
"random",
"velocity",
"pressure",
"xtilt",
"ytilt" };
MAIN ()
static void
query (void)
{
static const GimpParamDef gih_save_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", "Drawable to export" },
{ GIMP_PDB_STRING, "uri", "The URI of the file to export the brush pipe in" },
{ GIMP_PDB_STRING, "raw-uri", "The URI of the file to export the brush pipe in" },
{ GIMP_PDB_INT32, "spacing", "Spacing of the brush" },
{ GIMP_PDB_STRING, "description", "Short description of the brush pipe" },
{ GIMP_PDB_INT32, "cell-width", "Width of the brush cells" },
{ GIMP_PDB_INT32, "cell-height", "Width of the brush cells" },
{ GIMP_PDB_INT8, "display-cols", "Display column number" },
{ GIMP_PDB_INT8, "display-rows", "Display row number" },
{ GIMP_PDB_INT32, "dimension", "Dimension of the brush pipe" },
/* The number of rank and sel args depend on the dimension */
{ GIMP_PDB_INT8ARRAY, "rank", "Ranks of the dimensions" },
{ GIMP_PDB_INT32, "dimension", "Dimension (again)" },
{ GIMP_PDB_STRINGARRAY, "sel", "Selection modes" }
};
static const GimpParamDef gih_load_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_STRING, "uri", "The name of the file to load" },
{ GIMP_PDB_STRING, "raw-uri", "The name of the file to load" }
};
static const GimpParamDef gih_load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
gimp_install_procedure (LOAD_PROC,
"loads images in GIMP brush pipe format",
"This plug-in loads a GIMP brush pipe as an image.",
"Jens Lautenbacher, Sven Neumann",
"Jens Lautenbacher, Sven Neumann",
"2000",
N_("GIMP brush (animated)"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (gih_load_args),
G_N_ELEMENTS (gih_load_return_vals),
gih_load_args, gih_load_return_vals);
gimp_plugin_icon_register (LOAD_PROC, GIMP_ICON_TYPE_ICON_NAME,
(const guint8 *) GIMP_ICON_BRUSH);
gimp_register_file_handler_mime (LOAD_PROC, "image/x-gimp-gih");
gimp_register_file_handler_uri (LOAD_PROC);
gimp_register_magic_load_handler (LOAD_PROC, "gih", "", "");
gimp_install_procedure (SAVE_PROC,
"exports images in GIMP brush pipe format",
"This plug-in exports an image in the GIMP brush pipe "
"format. For a colored brush pipe, RGBA layers are "
"used, otherwise the layers should be grayscale "
"masks. The image can be multi-layered, and "
"additionally the layers can be divided into a "
"rectangular array of brushes.",
"Tor Lillqvist",
"Tor Lillqvist",
"1999",
N_("GIMP brush (animated)"),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (gih_save_args), 0,
gih_save_args, NULL);
gimp_plugin_icon_register (SAVE_PROC, GIMP_ICON_TYPE_ICON_NAME,
(const guint8 *) GIMP_ICON_BRUSH);
gimp_register_file_handler_mime (SAVE_PROC, "image/x-gimp-gih");
gimp_register_file_handler_uri (SAVE_PROC);
gimp_register_save_handler (SAVE_PROC, "gih", "");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint32 image_ID;
gint32 drawable_ID;
gint i;
GimpExportReturn export = GIMP_EXPORT_CANCEL;
GError *error = NULL;
INIT_I18N();
gegl_init (NULL, NULL);
run_mode = param[0].data.d_int32;
*return_vals = values;
*nreturn_vals = 1;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
if (strcmp (name, LOAD_PROC) == 0)
{
image_ID = gih_load_image (g_file_new_for_uri (param[1].data.d_string),
&error);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
else if (strcmp (name, SAVE_PROC) == 0)
{
GFile *file;
GimpParasite *name_parasite;
GimpParasite *pipe_parasite;
gint32 orig_image_ID;
image_ID = param[1].data.d_int32;
drawable_ID = param[2].data.d_int32;
file = g_file_new_for_uri (param[3].data.d_string);
orig_image_ID = image_ID;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
case GIMP_RUN_WITH_LAST_VALS:
gimp_ui_init (PLUG_IN_BINARY, FALSE);
export = gimp_export_image (&image_ID, &drawable_ID, "GIH",
GIMP_EXPORT_CAN_HANDLE_RGB |
GIMP_EXPORT_CAN_HANDLE_GRAY |
GIMP_EXPORT_CAN_HANDLE_ALPHA |
GIMP_EXPORT_CAN_HANDLE_LAYERS);
if (export == GIMP_EXPORT_CANCEL)
{
values[0].data.d_status = GIMP_PDB_CANCEL;
return;
}
/* Possibly retrieve data */
gimp_get_data (SAVE_PROC, &info);
name_parasite = gimp_image_get_parasite (orig_image_ID,
"gimp-brush-pipe-name");
if (name_parasite)
{
strncpy (info.description,
gimp_parasite_data (name_parasite),
MIN (sizeof (info.description),
gimp_parasite_data_size (name_parasite)));
info.description[sizeof (info.description) - 1] = '\0';
gimp_parasite_free (name_parasite);
}
else
{
gchar *name = g_path_get_basename (gimp_file_get_utf8_name (file));
if (g_str_has_suffix (name, ".gih"))
name[strlen (name) - 4] = '\0';
if (strlen (name))
{
strncpy (info.description, name, sizeof (info.description));
info.description[sizeof (info.description) - 1] = '\0';
}
g_free (name);
}
break;
default:
break;
}
g_free (gimp_image_get_layers (image_ID, &num_layers));
gimp_pixpipe_params_init (&gihparams);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gihparams.ncells = (num_layers * gihparams.rows * gihparams.cols);
gihparams.cellwidth = gimp_image_width (image_ID) / gihparams.cols;
gihparams.cellheight = gimp_image_height (image_ID) / gihparams.rows;
pipe_parasite = gimp_image_get_parasite (orig_image_ID,
"gimp-brush-pipe-parameters");
if (pipe_parasite)
{
gimp_pixpipe_params_parse (gimp_parasite_data (pipe_parasite),
&gihparams);
gimp_parasite_free (pipe_parasite);
}
/* Force default rank to same as number of cells if there is
* just one dim
*/
if (gihparams.dim == 1)
gihparams.rank[0] = gihparams.ncells;
if (! gih_save_dialog (image_ID))
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 15)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
info.spacing = param[5].data.d_int32;
strncpy (info.description, param[6].data.d_string,
sizeof (info.description));
info.description[sizeof (info.description) - 1] = '\0';
gihparams.cellwidth = param[7].data.d_int32;
gihparams.cellheight = param[8].data.d_int32;
gihparams.cols = param[9].data.d_int8;
gihparams.rows = param[10].data.d_int8;
gihparams.dim = param[11].data.d_int32;
gihparams.ncells = 1;
if (param[13].data.d_int32 != gihparams.dim)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
for (i = 0; i < gihparams.dim; i++)
{
gihparams.rank[i] = param[12].data.d_int8array[i];
gihparams.selection[i] = g_strdup (param[14].data.d_stringarray[i]);
gihparams.ncells *= gihparams.rank[i];
}
}
}
break;
case GIMP_RUN_WITH_LAST_VALS:
pipe_parasite = gimp_image_get_parasite (orig_image_ID,
"gimp-brush-pipe-parameters");
if (pipe_parasite)
{
gimp_pixpipe_params_parse (gimp_parasite_data (pipe_parasite),
&gihparams);
gimp_parasite_free (pipe_parasite);
}
break;
}
if (status == GIMP_PDB_SUCCESS)
{
if (gih_save_image (file, image_ID, orig_image_ID, drawable_ID,
&error))
{
gimp_set_data (SAVE_PROC, &info, sizeof (info));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
if (export == GIMP_EXPORT_EXPORT)
gimp_image_delete (image_ID);
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
/* load routines */
static gboolean
gih_load_one_brush (GInputStream *input,
gint32 image_ID,
GError **error)
{
gchar *name = NULL;
BrushHeader bh;
guchar *brush_buf = NULL;
gint32 layer_ID;
gsize size;
GimpImageType image_type;
gint width, height;
gint new_width, new_height;
gsize bytes_read;
if (! g_input_stream_read_all (input, &bh, sizeof (bh),
&bytes_read, NULL, error) ||
bytes_read != sizeof (bh))
{
return FALSE;
}
/* rearrange the bytes in each unsigned int */
bh.header_size = g_ntohl (bh.header_size);
bh.version = g_ntohl (bh.version);
bh.width = g_ntohl (bh.width);
bh.height = g_ntohl (bh.height);
bh.bytes = g_ntohl (bh.bytes);
bh.magic_number = g_ntohl (bh.magic_number);
bh.spacing = g_ntohl (bh.spacing);
/* Sanitize values */
if ((bh.width == 0) || (bh.width > GIMP_MAX_IMAGE_SIZE) ||
(bh.height == 0) || (bh.height > GIMP_MAX_IMAGE_SIZE) ||
((bh.bytes != 1) && (bh.bytes != 4)) ||
(G_MAXSIZE / bh.width / bh.height / bh.bytes < 1))
{
return FALSE;
}
if ((bh.magic_number != GBRUSH_MAGIC || bh.version != 2) ||
bh.header_size <= sizeof (bh))
{
return FALSE;
}
if ((size = (bh.header_size - sizeof (bh))) > 0)
{
name = g_new0 (gchar, size + 1);
if (! g_input_stream_read_all (input, name, size,
&bytes_read, NULL, error) ||
bytes_read != size)
{
g_free (name);
return FALSE;
}
}
else
{
name = g_strdup (_("Unnamed"));
}
/* Now there's just raw data left. */
size = (gsize) bh.width * bh.height * bh.bytes;
brush_buf = g_malloc (size);
if (! g_input_stream_read_all (input, brush_buf, size,
&bytes_read, NULL, error) ||
bytes_read != size)
{
g_free (brush_buf);
g_free (name);
return FALSE;
}
if (bh.bytes == 1)
{
PatternHeader ph;
/* For backwards-compatibility, check if a pattern follows.
* The obsolete .gpb format did it this way.
*/
if (g_input_stream_read_all (input, &ph, sizeof (PatternHeader),
&bytes_read, NULL, error) &&
bytes_read == sizeof (PatternHeader))
{
/* rearrange the bytes in each unsigned int */
ph.header_size = g_ntohl (ph.header_size);
ph.version = g_ntohl (ph.version);
ph.width = g_ntohl (ph.width);
ph.height = g_ntohl (ph.height);
ph.bytes = g_ntohl (ph.bytes);
ph.magic_number = g_ntohl (ph.magic_number);
if (ph.magic_number == GPATTERN_MAGIC &&
ph.version == 1 &&
ph.header_size > sizeof (PatternHeader) &&
ph.bytes == 3 &&
ph.width == bh.width &&
ph.height == bh.height &&
g_input_stream_skip (input,
ph.header_size - sizeof (PatternHeader),
NULL, NULL) ==
ph.header_size - sizeof (PatternHeader))
{
guchar *plain_brush = brush_buf;
gint i;
bh.bytes = 4;
brush_buf = g_malloc ((gsize) bh.width * bh.height * 4);
for (i = 0; i < ph.width * ph.height; i++)
{
if (! g_input_stream_read_all (input,
brush_buf + i * 4, 3,
&bytes_read, NULL, error) ||
bytes_read != 3)
{
g_free (name);
g_free (plain_brush);
g_free (brush_buf);
return FALSE;
}
brush_buf[i * 4 + 3] = plain_brush[i];
}
g_free (plain_brush);
}
else if (! g_seekable_seek (G_SEEKABLE (input),
- sizeof (PatternHeader), G_SEEK_CUR,
NULL, NULL))
{
g_message (_("GIMP brush file appears to be corrupted."));
g_free (name);
g_free (brush_buf);
return FALSE;
}
}
}
/*
* Create a new layer of the proper size.
*/
switch (bh.bytes)
{
case 1:
image_type = GIMP_GRAY_IMAGE;
break;
case 4:
image_type = GIMP_RGBA_IMAGE;
if (gimp_image_base_type (image_ID) == GIMP_GRAY)
gimp_image_convert_rgb (image_ID);
break;
default:
g_message ("Unsupported brush depth: %d\n"
"GIMP Brushes must be GRAY or RGBA\n",
bh.bytes);
g_free (name);
return FALSE;
}
new_width = width = gimp_image_width (image_ID);
new_height = height = gimp_image_height (image_ID);
if (bh.width > width || bh.height > height)
{
new_width = MAX (width, bh.width);
new_height = MAX (height, bh.height);
gimp_image_resize (image_ID,
new_width, new_height,
(new_width - width) / 2, (new_height - height) / 2);
}
layer_ID = gimp_layer_new (image_ID, name,
bh.width, bh.height,
image_type,
100,
gimp_image_get_default_new_layer_mode (image_ID));
g_free (name);
if (layer_ID != -1)
{
GeglBuffer *buffer;
gint i;
gimp_image_insert_layer (image_ID, layer_ID, -1, num_layers++);
gimp_layer_set_offsets (layer_ID,
(new_width - bh.width) / 2,
(new_height - bh.height) / 2);
buffer = gimp_drawable_get_buffer (layer_ID);
/* invert */
if (image_type == GIMP_GRAY_IMAGE)
for (i = 0; i < bh.width * bh.height; i++)
brush_buf[i] = 255 - brush_buf[i];
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, 0, bh.width, bh.height), 0,
NULL, brush_buf, GEGL_AUTO_ROWSTRIDE);
g_object_unref (buffer);
}
g_free (brush_buf);
return TRUE;
}
static gint32
gih_load_image (GFile *file,
GError **error)
{
GInputStream *input;
gint i;
gint32 image_ID;
GString *buffer;
gchar c;
gchar *name = NULL;
gint num_of_brushes = 0;
gchar *paramstring;
GimpParasite *name_parasite;
GimpParasite *pipe_parasite;
gsize bytes_read;
gimp_progress_init_printf (_("Opening '%s'"),
g_file_get_parse_name (file));
input = G_INPUT_STREAM (g_file_read (file, NULL, error));
if (! input)
return -1;
/* The file format starts with a painfully simple text header */
/* get the name */
buffer = g_string_new (NULL);
while (g_input_stream_read_all (input, &c, 1,
&bytes_read, NULL, error) &&
bytes_read == 1 &&
c != '\n' &&
buffer->len < 1024)
{
g_string_append_c (buffer, c);
}
if (buffer->len > 0 && buffer->len < 1024)
name = buffer->str;
g_string_free (buffer, FALSE);
if (!name)
{
g_message ("Couldn't read name for brush pipe from '%s'",
g_file_get_parse_name (file));
g_object_unref (input);
return -1;
}
/* get the number of brushes */
buffer = g_string_new (NULL);
while (g_input_stream_read_all (input, &c, 1,
&bytes_read, NULL, error) &&
bytes_read == 1 &&
c != '\n' &&
buffer->len < 1024)
{
g_string_append_c (buffer, c);
}
if (buffer->len > 0 && buffer->len < 1024)
{
num_of_brushes = strtol (buffer->str, &paramstring, 10);
}
if (num_of_brushes < 1)
{
g_message ("Brush pipes should have at least one brush.");
g_object_unref (input);
g_free (name);
g_string_free (buffer, TRUE);
return -1;
}
image_ID = gimp_image_new (1, 1, GIMP_GRAY);
gimp_image_set_filename (image_ID, g_file_get_uri (file));
for (i = 0; i < num_of_brushes; i++)
{
if (! gih_load_one_brush (input, image_ID, error))
{
g_object_unref (input);
g_free (name);
g_string_free (buffer, TRUE);
return -1;
}
gimp_progress_update ((gdouble) i / (gdouble) num_of_brushes);
}
g_object_unref (input);
/* Attaching name as a parasite */
name_parasite = gimp_parasite_new ("gimp-brush-pipe-name",
GIMP_PARASITE_PERSISTENT,
strlen (name) + 1,
name);
gimp_image_attach_parasite (image_ID, name_parasite);
gimp_parasite_free (name_parasite);
while (*paramstring && g_ascii_isspace (*paramstring))
paramstring++;
/* Since we do not (yet) load the pipe as described in the header,
but use one layer per brush, we have to alter the paramstring
before attaching it as a parasite.
*/
if (*paramstring)
{
gimp_pixpipe_params_parse (paramstring, &gihparams);
gihparams.cellwidth = gimp_image_width (image_ID);
gihparams.cellheight = gimp_image_height (image_ID);
gihparams.cols = 1;
gihparams.rows = 1;
paramstring = gimp_pixpipe_params_build (&gihparams);
if (paramstring)
{
pipe_parasite = gimp_parasite_new ("gimp-brush-pipe-parameters",
GIMP_PARASITE_PERSISTENT,
strlen (paramstring) + 1,
paramstring);
gimp_image_attach_parasite (image_ID, pipe_parasite);
gimp_parasite_free (pipe_parasite);
g_free (paramstring);
}
}
g_string_free (buffer, TRUE);
gimp_progress_update (1.0);
return image_ID;
}
/* save routines */
static void
size_adjustment_callback (GtkWidget *widget,
SizeAdjustmentData *adj)
{
gint i;
gint size;
gint newn;
gchar buf[10];
for (i = 0; i < adj->nguides; i++)
gimp_image_delete_guide (adj->image, adj->guides[i]);
g_free (adj->guides);
adj->guides = NULL;
gimp_displays_flush ();
*(adj->value) = gtk_adjustment_get_value (GTK_ADJUSTMENT (widget));
if (adj->orientation == GIMP_ORIENTATION_VERTICAL)
{
size = gimp_image_width (adj->image);
newn = size / *(adj->value);
adj->nguides = newn - 1;
adj->guides = g_new (gint32, adj->nguides);
for (i = 0; i < adj->nguides; i++)
adj->guides[i] = gimp_image_add_vguide (adj->image,
*(adj->value) * (i+1));
}
else
{
size = gimp_image_height (adj->image);
newn = size / *(adj->value);
adj->nguides = newn - 1;
adj->guides = g_new (gint32, adj->nguides);
for (i = 0; i < adj->nguides; i++)
adj->guides[i] = gimp_image_add_hguide (adj->image,
*(adj->value) * (i+1));
}
gimp_displays_flush ();
g_snprintf (buf, sizeof (buf), "%2d", newn);
gtk_label_set_text (GTK_LABEL (adj->count_label), buf);
*(adj->count) = newn;
gtk_widget_set_visible (GTK_WIDGET (adj->warning_label),
newn * *(adj->value) != size);
if (adj->ncells != NULL)
gtk_adjustment_set_value (GTK_ADJUSTMENT (adj->ncells),
*(adj->other_count) * *(adj->count));
if (adj->rank0 != NULL)
gtk_adjustment_set_value (GTK_ADJUSTMENT (adj->rank0),
*(adj->other_count) * *(adj->count));
}
static void
entry_callback (GtkWidget *widget,
gpointer data)
{
if (data == info.description)
{
strncpy (info.description, gtk_entry_get_text (GTK_ENTRY (widget)),
sizeof (info.description));
info.description[sizeof (info.description) - 1] = 0;
}
}
static void
cb_callback (GtkWidget *widget,
gpointer data)
{
gint index;
index = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
*((const gchar **) data) = selection_modes [index];
}
static void
dim_callback (GtkAdjustment *adjustment,
SizeAdjustmentData *data)
{
gint i;
gihparams.dim = RINT (gtk_adjustment_get_value (adjustment));
for (i = 0; i < GIMP_PIXPIPE_MAXDIM; i++)
{
gtk_widget_set_sensitive (data->rank_entry[i], i < gihparams.dim);
gtk_widget_set_sensitive (data->mode_entry[i], i < gihparams.dim);
}
}
static gboolean
gih_save_dialog (gint32 image_ID)
{
GtkWidget *dialog;
GtkWidget *table;
GtkWidget *dimtable;
GtkWidget *label;
GtkAdjustment *adjustment;
GtkWidget *spinbutton;
GtkWidget *entry;
GtkWidget *box;
GtkWidget *cb;
gint i;
gchar buffer[100];
SizeAdjustmentData cellw_adjust;
SizeAdjustmentData cellh_adjust;
gint32 *layer_ID;
gint32 nlayers;
gboolean run;
dialog = gimp_export_dialog_new (_("Brush Pipe"), PLUG_IN_BINARY, SAVE_PROC);
/* The main table */
table = gtk_table_new (8, 2, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_container_set_border_width (GTK_CONTAINER (table), 12);
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
table, TRUE, TRUE, 0);
gtk_widget_show (table);
/*
* Description: ___________
*/
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_text (GTK_ENTRY (entry), info.description);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Description:"), 0.0, 0.5,
entry, 1, FALSE);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_callback),
info.description);
/*
* Spacing: __
*/
adjustment = (GtkAdjustment *) gtk_adjustment_new (info.spacing,
1, 1000, 1, 10, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Spacing (percent):"), 0.0, 0.5,
spinbutton, 1, TRUE);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&info.spacing);
/*
* Cell size: __ x __ pixels
*/
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
adjustment = (GtkAdjustment *)
gtk_adjustment_new (gihparams.cellwidth,
2, gimp_image_width (image_ID), 1, 10, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_box_pack_start (GTK_BOX (box), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
layer_ID = gimp_image_get_layers (image_ID, &nlayers);
cellw_adjust.orientation = GIMP_ORIENTATION_VERTICAL;
cellw_adjust.image = image_ID;
cellw_adjust.toplayer = layer_ID[nlayers-1];
cellw_adjust.nguides = 0;
cellw_adjust.guides = NULL;
cellw_adjust.value = &gihparams.cellwidth;
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (size_adjustment_callback),
&cellw_adjust);
label = gtk_label_new ("x");
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_widget_show (label);
adjustment = (GtkAdjustment *)
gtk_adjustment_new (gihparams.cellheight,
2, gimp_image_height (image_ID), 1, 10, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_box_pack_start (GTK_BOX (box), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
cellh_adjust.orientation = GIMP_ORIENTATION_HORIZONTAL;
cellh_adjust.image = image_ID;
cellh_adjust.toplayer = layer_ID[nlayers-1];
cellh_adjust.nguides = 0;
cellh_adjust.guides = NULL;
cellh_adjust.value = &gihparams.cellheight;
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (size_adjustment_callback),
&cellh_adjust);
label = gtk_label_new ( _("Pixels"));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("Cell size:"), 0.0, 0.5,
box, 1, FALSE);
g_free (layer_ID);
/*
* Number of cells: ___
*/
adjustment = (GtkAdjustment *)
gtk_adjustment_new (gihparams.ncells, 1, 1000, 1, 10, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("Number of cells:"), 0.0, 0.5,
spinbutton, 1, TRUE);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&gihparams.ncells);
if (gihparams.dim == 1)
cellw_adjust.ncells = cellh_adjust.ncells = adjustment;
else
cellw_adjust.ncells = cellh_adjust.ncells = NULL;
/*
* Display as: __ rows x __ cols
*/
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
g_snprintf (buffer, sizeof (buffer), "%2d", gihparams.rows);
label = gtk_label_new (buffer);
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
cellh_adjust.count_label = label;
cellh_adjust.count = &gihparams.rows;
cellh_adjust.other_count = &gihparams.cols;
gtk_widget_show (label);
label = gtk_label_new (_(" Rows of "));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_widget_show (label);
g_snprintf (buffer, sizeof (buffer), "%2d", gihparams.cols);
label = gtk_label_new (buffer);
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
cellw_adjust.count_label = label;
cellw_adjust.count = &gihparams.cols;
cellw_adjust.other_count = &gihparams.rows;
gtk_widget_show (label);
label = gtk_label_new (_(" Columns on each layer"));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_widget_show (label);
label = gtk_label_new (_(" (Width Mismatch!) "));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
cellw_adjust.warning_label = label;
label = gtk_label_new (_(" (Height Mismatch!) "));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
cellh_adjust.warning_label = label;
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
_("Display as:"), 0.0, 0.5,
box, 1, FALSE);
/*
* Dimension: ___
*/
adjustment = (GtkAdjustment *)
gtk_adjustment_new (gihparams.dim, 1, GIMP_PIXPIPE_MAXDIM, 1, 1, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 5,
_("Dimension:"), 0.0, 0.5,
spinbutton, 1, TRUE);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (dim_callback),
&cellw_adjust);
/*
* Ranks / Selection: ______ ______ ______ ______ ______
*/
dimtable = gtk_table_new (2, GIMP_PIXPIPE_MAXDIM, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (dimtable), 4);
for (i = 0; i < GIMP_PIXPIPE_MAXDIM; i++)
{
gint j;
adjustment = (GtkAdjustment *)
gtk_adjustment_new (gihparams.rank[i], 1, 100, 1, 1, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_table_attach (GTK_TABLE (dimtable), spinbutton, 0, 1, i, i + 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (spinbutton);
if (i >= gihparams.dim)
gtk_widget_set_sensitive (spinbutton, FALSE);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&gihparams.rank[i]);
cellw_adjust.rank_entry[i] = cellh_adjust.rank_entry[i] = spinbutton;
if (i == 0)
{
if (gihparams.dim == 1)
cellw_adjust.rank0 = cellh_adjust.rank0 = adjustment;
else
cellw_adjust.rank0 = cellh_adjust.rank0 = NULL;
}
cb = gtk_combo_box_text_new ();
for (j = 0; j < G_N_ELEMENTS (selection_modes); j++)
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (cb),
selection_modes[j]);
gtk_combo_box_set_active (GTK_COMBO_BOX (cb), 2); /* random */
if (gihparams.selection[i])
for (j = 0; j < G_N_ELEMENTS (selection_modes); j++)
if (!strcmp (gihparams.selection[i], selection_modes[j]))
{
gtk_combo_box_set_active (GTK_COMBO_BOX (cb), j);
break;
}
gtk_table_attach (GTK_TABLE (dimtable), cb, 1, 2, i, i + 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (cb);
if (i >= gihparams.dim)
gtk_widget_set_sensitive (cb, FALSE);
g_signal_connect (GTK_COMBO_BOX (cb), "changed",
G_CALLBACK (cb_callback),
&gihparams.selection[i]);
cellw_adjust.mode_entry[i] = cellh_adjust.mode_entry[i] = cb;
}
gimp_table_attach_aligned (GTK_TABLE (table), 0, 6,
_("Ranks:"), 0.0, 0.0,
dimtable, 1, FALSE);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
if (run)
{
gint i;
for (i = 0; i < GIMP_PIXPIPE_MAXDIM; i++)
gihparams.selection[i] = g_strdup (gihparams.selection[i]);
/* Fix up bogus values */
gihparams.ncells = MIN (gihparams.ncells,
num_layers * gihparams.rows * gihparams.cols);
}
gtk_widget_destroy (dialog);
for (i = 0; i < cellw_adjust.nguides; i++)
gimp_image_delete_guide (image_ID, cellw_adjust.guides[i]);
for (i = 0; i < cellh_adjust.nguides; i++)
gimp_image_delete_guide (image_ID, cellh_adjust.guides[i]);
return run;
}
static gboolean
gih_save_one_brush (GOutputStream *output,
gint32 drawable_ID,
GeglRectangle *rect,
const gchar *name,
GError **error)
{
GeglBuffer *buffer;
const Babl *format;
BrushHeader bh;
guchar *data;
GimpImageType drawable_type;
gint bpp;
gint y;
buffer = gimp_drawable_get_buffer (drawable_ID);
drawable_type = gimp_drawable_type (drawable_ID);
if (! name)
name = _("Unnamed");
switch (drawable_type)
{
case GIMP_GRAY_IMAGE:
case GIMP_GRAYA_IMAGE: /* alpha channel is ignored */
format = babl_format ("Y' u8");
break;
case GIMP_RGB_IMAGE: /* alpha channel is added */
case GIMP_RGBA_IMAGE:
format = babl_format ("R'G'B'A u8");
break;
default:
g_return_val_if_reached (FALSE);
break;
}
bpp = babl_format_get_bytes_per_pixel (format);
bh.header_size = g_htonl (sizeof (bh) + strlen (name) + 1);
bh.version = g_htonl (2);
bh.width = g_htonl (rect->width);
bh.height = g_htonl (rect->height);
bh.bytes = g_htonl (bpp);
bh.magic_number = g_htonl (GBRUSH_MAGIC);
bh.spacing = g_htonl (info.spacing);
if (! g_output_stream_write_all (output, &bh, sizeof (bh),
NULL, NULL, error))
{
return FALSE;
}
if (! g_output_stream_write_all (output, name, strlen (name) + 1,
NULL, NULL, error))
{
return FALSE;
}
data = g_malloc (rect->width * bpp);
for (y = 0; y < rect->height; y++)
{
gint x;
gegl_buffer_get (buffer,
GEGL_RECTANGLE (rect->x, rect->y + y, rect->width, 1),
1.0, format, data,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
switch (bpp)
{
case 1: /* GRAY */
for (x = 0; x < rect->width; x++)
data[x] = 255 - data[x];
}
if (! g_output_stream_write_all (output, data, rect->width * bpp,
NULL, NULL, error))
{
g_free (data);
return FALSE;
}
}
g_free (data);
g_object_unref (buffer);
return TRUE;
}
static gboolean
gih_save_image (GFile *file,
gint32 image_ID,
gint32 orig_image_ID,
gint32 drawable_ID,
GError **error)
{
GOutputStream *output;
GimpParasite *name_parasite;
GimpParasite *pipe_parasite;
gchar *header;
gchar *parstring;
gint32 *layer_ID;
gint nlayers, layer;
gint row, col;
gint imagew, imageh;
gint offsetx, offsety;
gint k;
if (gihparams.ncells < 1)
return FALSE;
imagew = gimp_image_width (image_ID);
imageh = gimp_image_height (image_ID);
gimp_progress_init_printf (_("Exporting '%s'"),
g_file_get_parse_name (file));
output = G_OUTPUT_STREAM (g_file_replace (file,
NULL, FALSE, G_FILE_CREATE_NONE,
NULL, error));
if (! output)
return FALSE;
parstring = gimp_pixpipe_params_build (&gihparams);
header = g_strdup_printf ("%s\n%d %s\n",
info.description, gihparams.ncells, parstring);
if (! g_output_stream_write_all (output, header, strlen (header),
NULL, NULL, error))
{
g_free (parstring);
g_free (header);
g_object_unref (output);
return FALSE;
}
g_free (header);
name_parasite = gimp_parasite_new ("gimp-brush-pipe-name",
GIMP_PARASITE_PERSISTENT,
strlen (info.description) + 1,
info.description);
gimp_image_attach_parasite (orig_image_ID, name_parasite);
gimp_parasite_free (name_parasite);
pipe_parasite = gimp_parasite_new ("gimp-brush-pipe-parameters",
GIMP_PARASITE_PERSISTENT,
strlen (parstring) + 1, parstring);
gimp_image_attach_parasite (orig_image_ID, pipe_parasite);
gimp_parasite_free (pipe_parasite);
g_free (parstring);
layer_ID = gimp_image_get_layers (image_ID, &nlayers);
for (layer = 0, k = 0; layer < nlayers; layer++)
{
gchar *name = gimp_item_get_name (layer_ID[layer]);
gint width = gimp_drawable_width (layer_ID[layer]);
gint height = gimp_drawable_height (layer_ID[layer]);
gimp_drawable_offsets (layer_ID[layer], &offsetx, &offsety);
for (row = 0; row < gihparams.rows; row++)
{
gint y, ynext;
gint thisy, thish;
y = (row * imageh) / gihparams.rows;
ynext = ((row + 1) * imageh / gihparams.rows);
/* Assume layer is offset to positive direction in x and y.
* That's reasonable, as otherwise all of the layer
* won't be visible.
* thisy and thisx are in the drawable's coordinate space.
*/
thisy = MAX (0, y - offsety);
thish = (ynext - offsety) - thisy;
thish = MIN (thish, height - thisy);
for (col = 0; col < gihparams.cols; col++)
{
gint x, xnext;
gint thisx, thisw;
x = (col * imagew / gihparams.cols);
xnext = ((col + 1) * imagew / gihparams.cols);
thisx = MAX (0, x - offsetx);
thisw = (xnext - offsetx) - thisx;
thisw = MIN (thisw, width - thisx);
if (! gih_save_one_brush (output, layer_ID[layer],
GEGL_RECTANGLE (thisx, thisy,
thisw, thish),
name, error))
{
g_object_unref (output);
return FALSE;
}
k++;
gimp_progress_update ((gdouble) k / gihparams.ncells);
}
}
g_free (name);
}
g_free (layer_ID);
g_object_unref (output);
gimp_progress_update (1.0);
return TRUE;
}
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