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gimp/plug-ins/common/file-gih.c
Jehan 66ec467217 plug-ins: make various usage of g_file_replace() safer. 
As I did on app/, finalizing an output stream also implicitly flushes
and closes it. Hence if an export ended with an error, we'd end up with
incomplete data file (possibly overwriting a previously exported image).
Only 2 plug-ins I haven't fixed yet are file-tiff-io and file-gif-save.
The later one don't even clean up its memory (which somehow is good here
as at least the output stream is never finalized hence sane files are
not overwritten in case of errors). As for the former (TIFF plug-in), it
doesn't even seem to have any error control AFAICS, apart from printing
error messages on standard error output.
2018-11-27 12:41:22 +01:00

1424 lines
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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 <https://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;
}
}
gimp_pixpipe_params_free (&gihparams);
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;
GimpBrushHeader 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_BRUSH_MAX_SIZE) ||
(bh.height == 0) || (bh.height > GIMP_BRUSH_MAX_SIZE) ||
((bh.bytes != 1) && (bh.bytes != 4)) ||
(G_MAXSIZE / bh.width / bh.height / bh.bytes < 1))
{
return FALSE;
}
if ((bh.magic_number != GIMP_BRUSH_MAGIC ||
bh.version != 2) ||
bh.header_size <= sizeof (bh))
{
return FALSE;
}
if ((size = (bh.header_size - sizeof (bh))) > 0)
{
if (size > GIMP_BRUSH_MAX_NAME)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Brush name is too long: %lu"),
(gulong) size);
return FALSE;
}
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)
{
GimpPatternHeader 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 (GimpPatternHeader),
&bytes_read, NULL, error) &&
bytes_read == sizeof (GimpPatternHeader))
{
/* 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 == GIMP_PATTERN_MAGIC &&
ph.version == 1 &&
ph.header_size > sizeof (GimpPatternHeader) &&
ph.bytes == 3 &&
ph.width == bh.width &&
ph.height == bh.height &&
g_input_stream_skip (input,
ph.header_size - sizeof (GimpPatternHeader),
NULL, NULL) ==
ph.header_size - sizeof (GimpPatternHeader))
{
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 (GimpPatternHeader), 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 (GtkAdjustment *adjustment,
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 (adjustment);
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 (adj->ncells,
*(adj->other_count) * *(adj->count));
if (adj->rank0 != NULL)
gtk_adjustment_set_value (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 *grid;
GtkWidget *dimgrid;
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 grid */
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_container_set_border_width (GTK_CONTAINER (grid), 12);
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
grid, TRUE, TRUE, 0);
gtk_widget_show (grid);
/*
* Description: ___________
*/
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 200, -1);
gtk_entry_set_text (GTK_ENTRY (entry), info.description);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 0,
_("Description:"), 0.0, 0.5,
entry, 1);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_callback),
info.description);
/*
* Spacing: __
*/
adjustment = 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_grid_attach_aligned (GTK_GRID (grid), 0, 1,
_("Spacing (percent):"), 0.0, 0.5,
spinbutton, 1);
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 = 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 = 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_grid_attach_aligned (GTK_GRID (grid), 0, 2,
_("Cell size:"), 0.0, 0.5,
box, 1);
g_free (layer_ID);
/*
* Number of cells: ___
*/
adjustment = 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_grid_attach_aligned (GTK_GRID (grid), 0, 3,
_("Number of cells:"), 0.0, 0.5,
spinbutton, 1);
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_grid_attach_aligned (GTK_GRID (grid), 0, 4,
_("Display as:"), 0.0, 0.5,
box, 1);
/*
* Dimension: ___
*/
adjustment = 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_grid_attach_aligned (GTK_GRID (grid), 0, 5,
_("Dimension:"), 0.0, 0.5,
spinbutton, 1);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (dim_callback),
&cellw_adjust);
/*
* Ranks / Selection: ______ ______ ______ ______ ______
*/
dimgrid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (dimgrid), 4);
for (i = 0; i < GIMP_PIXPIPE_MAXDIM; i++)
{
gint j;
adjustment = 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_grid_attach (GTK_GRID (dimgrid), spinbutton, 0, i, 1, 1);
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_grid_attach (GTK_GRID (dimgrid), cb, 1, i, 1, 1);
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_grid_attach_aligned (GTK_GRID (grid), 0, 6,
_("Ranks:"), 0.0, 0.0,
dimgrid, 1);
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;
GimpBrushHeader 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 (GIMP_BRUSH_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))
{
GCancellable *cancellable = g_cancellable_new ();
g_cancellable_cancel (cancellable);
g_output_stream_close (output, cancellable, NULL);
g_object_unref (cancellable);
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))
{
GCancellable *cancellable = g_cancellable_new ();
g_cancellable_cancel (cancellable);
g_output_stream_close (output, cancellable, NULL);
g_object_unref (cancellable);
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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