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gimp/plug-ins/common/tile.c

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/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* This filter tiles an image to arbitrary width and height
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
#define ENTRY_WIDTH 60
#define ENTRY_HEIGHT 25
typedef struct {
gint new_width;
gint new_height;
gint constrain;
gint new_image;
} TileVals;
typedef struct {
GtkWidget *width_entry;
GtkWidget *height_entry;
gint orig_width;
gint orig_height;
gint new_image;
gint run;
} TileInterface;
/* Declare a local function.
*/
static void query (void);
static void run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static gint32 tile (gint32 image_id,
gint32 drawable_id,
gint32 *layer_id);
static gint tile_dialog (gint width,
gint height);
static void tile_close_callback (GtkWidget *widget,
gpointer data);
static void tile_ok_callback (GtkWidget *widget,
gpointer data);
static void tile_toggle_update (GtkWidget *widget,
gpointer data);
static void tile_entry_update (GtkWidget *widget,
gpointer data);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static TileVals tvals =
{
1, /* new_width */
1, /* new_height */
TRUE, /* constrain */
TRUE /* new_image */
};
static TileInterface tint =
{
NULL, /* width_entry */
NULL, /* height_entry */
0, /* orig_width */
0, /* orig_height */
TRUE, /* new_image */
FALSE /* run */
};
MAIN ()
static void
query ()
{
static GParamDef args[] =
{
{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
{ PARAM_IMAGE, "image", "Input image (unused)" },
{ PARAM_DRAWABLE, "drawable", "Input drawable" },
{ PARAM_INT32, "new_width", "New (tiled) image width" },
{ PARAM_INT32, "new_height", "New (tiled) image height" },
{ PARAM_INT32, "new_image", "Create a new image?" },
};
static GParamDef return_vals[] =
{
{ PARAM_IMAGE, "new_image", "Output image (N/A if new_image == TRUE)" },
{ PARAM_IMAGE, "new_layer", "Output layer (N/A if new_image == TRUE)" },
};
static int nargs = sizeof (args) / sizeof (args[0]);
static int nreturn_vals = sizeof (return_vals) / sizeof (return_vals[0]);
gimp_install_procedure ("plug_in_tile",
"Create a new image which is a tiled version of the input drawable",
"This function creates a new image with a single layer sized to the specified 'new_width' and 'new_height' parameters. The specified drawable is tiled into this layer. The new layer will have the same type as the specified drawable and the new image will have a corresponding base type",
"Spencer Kimball & Peter Mattis",
"Spencer Kimball & Peter Mattis",
"1996-1997",
"<Image>/Filters/Transforms/Tile",
"RGB*, GRAY*, INDEXED*",
PROC_PLUG_IN,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[3];
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
gint32 new_layer;
gint width, height;
run_mode = param[0].data.d_int32;
*nreturn_vals = 3;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
values[1].type = PARAM_IMAGE;
values[1].type = PARAM_LAYER;
width = gimp_drawable_width (param[2].data.d_drawable);
height = gimp_drawable_height (param[2].data.d_drawable);
switch (run_mode)
{
case RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data ("plug_in_tile", &tvals);
/* First acquire information with a dialog */
if (! tile_dialog (width, height))
return;
break;
case RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 6)
status = STATUS_CALLING_ERROR;
if (status == STATUS_SUCCESS)
{
tvals.new_width = param[3].data.d_int32;
tvals.new_height = param[4].data.d_int32;
tvals.new_image = (param[5].data.d_int32) ? TRUE : FALSE;
}
if (tvals.new_width < 0 || tvals.new_height < 0)
status = STATUS_CALLING_ERROR;
break;
case RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_tile", &tvals);
break;
default:
break;
}
/* Make sure that the drawable is gray or RGB color */
if (status == STATUS_SUCCESS)
{
gimp_progress_init ("Tiling...");
gimp_tile_cache_ntiles (2 * (width + 1) / gimp_tile_width ());
values[1].data.d_image = tile (param[1].data.d_image, param[2].data.d_drawable, &new_layer);
values[2].data.d_layer = new_layer;
/* Store data */
if (run_mode == RUN_INTERACTIVE)
gimp_set_data ("plug_in_tile", &tvals, sizeof (TileVals));
if (run_mode != RUN_NONINTERACTIVE)
{
if (tvals.new_image)
gimp_display_new (values[1].data.d_image);
else
gimp_displays_flush ();
}
}
values[0].data.d_status = status;
}
static gint32
tile (gint32 image_id,
gint32 drawable_id,
gint32 *layer_id)
{
GPixelRgn src_rgn, dest_rgn;
GDrawable *drawable, *new_layer;
GImageType image_type;
gint32 new_image_id;
gint old_width, old_height;
gint width, height;
gint i, j, k;
gint progress, max_progress;
gint nreturn_vals;
gpointer pr;
/* initialize */
image_type = RGB;
new_image_id = 0;
old_width = gimp_drawable_width (drawable_id);
old_height = gimp_drawable_height (drawable_id);
if (tvals.new_image)
{
/* create a new image */
switch (gimp_drawable_type (drawable_id))
{
case RGB_IMAGE : case RGBA_IMAGE:
image_type = RGB;
break;
case GRAY_IMAGE : case GRAYA_IMAGE:
image_type = GRAY;
break;
case INDEXED_IMAGE : case INDEXEDA_IMAGE:
image_type = INDEXED;
break;
}
new_image_id = gimp_image_new (tvals.new_width, tvals.new_height, image_type);
*layer_id = gimp_layer_new (new_image_id, "Background",
tvals.new_width, tvals.new_height,
gimp_drawable_type (drawable_id),
100, NORMAL_MODE);
gimp_image_add_layer (new_image_id, *layer_id, 0);
new_layer = gimp_drawable_get (*layer_id);
/* Get the specified drawable */
drawable = gimp_drawable_get (drawable_id);
}
else
{
gimp_run_procedure ("gimp_undo_push_group_start", &nreturn_vals,
PARAM_IMAGE, image_id,
PARAM_END);
gimp_run_procedure ("gimp_image_resize", &nreturn_vals,
PARAM_IMAGE, image_id,
PARAM_INT32, tvals.new_width,
PARAM_INT32, tvals.new_height,
PARAM_INT32, 0,
PARAM_INT32, 0,
PARAM_END);
if (gimp_drawable_layer (drawable_id))
gimp_run_procedure ("gimp_layer_resize", &nreturn_vals,
PARAM_LAYER, drawable_id,
PARAM_INT32, tvals.new_width,
PARAM_INT32, tvals.new_height,
PARAM_INT32, 0,
PARAM_INT32, 0,
PARAM_END);
/* Get the specified drawable */
drawable = gimp_drawable_get (drawable_id);
new_layer = drawable;
}
/* progress */
progress = 0;
max_progress = tvals.new_width * tvals.new_height;
/* tile... */
for (i = 0; i < tvals.new_height; i += old_height)
{
height = old_height;
if (height + i > tvals.new_height)
height = tvals.new_height - i;
for (j = 0; j < tvals.new_width; j += old_width)
{
width = old_width;
if (width + j > tvals.new_width)
width = tvals.new_width - j;
gimp_pixel_rgn_init (&src_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
gimp_pixel_rgn_init (&dest_rgn, new_layer, j, i, width, height, TRUE, FALSE);
for (pr = gimp_pixel_rgns_register (2, &src_rgn, &dest_rgn); pr != NULL;
pr = gimp_pixel_rgns_process (pr))
{
for (k = 0; k < src_rgn.h; k++)
memcpy (dest_rgn.data + k * dest_rgn.rowstride,
src_rgn.data + k * src_rgn.rowstride,
src_rgn.w * src_rgn.bpp);
progress += src_rgn.w * src_rgn.h;
gimp_progress_update ((double) progress / (double) max_progress);
}
}
}
/* copy the colormap, if necessary */
if (image_type == INDEXED && tvals.new_image)
{
int ncols;
guchar *cmap;
cmap = gimp_image_get_cmap (image_id, &ncols);
gimp_image_set_cmap (new_image_id, cmap, ncols);
g_free (cmap);
}
if (tvals.new_image)
{
gimp_drawable_flush (new_layer);
gimp_drawable_detach (new_layer);
}
else
gimp_run_procedure ("gimp_undo_push_group_end", &nreturn_vals,
PARAM_IMAGE, image_id,
PARAM_END);
gimp_drawable_flush (drawable);
gimp_drawable_detach (drawable);
return new_image_id;
}
static gint
tile_dialog (gint width, gint height)
{
GtkWidget *dlg;
GtkWidget *label;
GtkWidget *button;
GtkWidget *toggle;
GtkWidget *frame;
GtkWidget *table;
char buffer[12];
gchar **argv;
gint argc;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("tile");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
tint.orig_width = width;
tint.orig_height = height;
tvals.new_width = width;
tvals.new_height = height;
dlg = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dlg), "Tile");
gtk_window_position (GTK_WINDOW (dlg), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) tile_close_callback,
NULL);
/* Action area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) tile_ok_callback,
dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Cancel");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (dlg));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_widget_show (button);
/* parameter settings */
frame = gtk_frame_new ("Tile to New Size:");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
table = gtk_table_new (4, 2, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 5);
gtk_table_set_row_spacing (GTK_TABLE (table), 1, 5);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 5);
label = gtk_label_new ("Width: ");
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
tint.width_entry = gtk_entry_new ();
gtk_widget_set_usize (tint.width_entry, ENTRY_WIDTH, ENTRY_HEIGHT);
sprintf (buffer, "%d", width);
gtk_entry_set_text (GTK_ENTRY (tint.width_entry), buffer);
gtk_table_attach (GTK_TABLE (table), tint.width_entry,
1, 2, 0, 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (tint.width_entry), "changed",
(GtkSignalFunc) tile_entry_update,
&tvals.new_width);
gtk_widget_show (tint.width_entry);
label = gtk_label_new ("Height: ");
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
tint.height_entry = gtk_entry_new ();
gtk_widget_set_usize (tint.height_entry, ENTRY_WIDTH, ENTRY_HEIGHT);
sprintf (buffer, "%d", height);
gtk_entry_set_text (GTK_ENTRY (tint.height_entry), buffer);
gtk_table_attach (GTK_TABLE (table), tint.height_entry,
1, 2, 1, 2, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (tint.height_entry), "changed",
(GtkSignalFunc) tile_entry_update,
&tvals.new_height);
gtk_widget_show (tint.height_entry);
toggle = gtk_check_button_new_with_label ("Constrain Ratio");
gtk_table_attach (GTK_TABLE (table), toggle,
0, 2, 2, 3, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) tile_toggle_update,
&tvals.constrain);
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle), tvals.constrain);
gtk_widget_show (toggle);
toggle = gtk_check_button_new_with_label ("New Image");
gtk_table_attach (GTK_TABLE (table), toggle,
0, 2, 3, 4, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) tile_toggle_update,
&tvals.new_image);
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle), tvals.new_image);
gtk_widget_show (toggle);
gtk_widget_show (table);
gtk_widget_show (frame);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return tint.run;
}
/* Tile interface functions */
static void
tile_close_callback (GtkWidget *widget,
gpointer data)
{
gtk_main_quit ();
}
static void
tile_ok_callback (GtkWidget *widget,
gpointer data)
{
tint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
tile_toggle_update (GtkWidget *widget,
gpointer data)
{
gint *toggle_val;
toggle_val = (int *) data;
if (GTK_TOGGLE_BUTTON (widget)->active)
*toggle_val = TRUE;
else
*toggle_val = FALSE;
}
static void
tile_entry_update (GtkWidget *widget,
gpointer data)
{
static gchar buf[32];
gint val;
val = atoi (gtk_entry_get_text (GTK_ENTRY (widget)));
if (tvals.constrain)
{
if ((tint.orig_width != 0) && (tint.orig_height != 0))
{
if (widget == tint.width_entry && tvals.new_width != val)
{
tvals.new_width = val;
tvals.new_height = (int) ((tvals.new_width * tint.orig_height) / tint.orig_width);
sprintf (buf, "%d", tvals.new_height);
gtk_entry_set_text (GTK_ENTRY (tint.height_entry), buf);
}
else if (widget == tint.height_entry && tvals.new_height != val)
{
tvals.new_height = val;
tvals.new_width = (int) ((tvals.new_height * tint.orig_width) / tint.orig_height);
sprintf (buf, "%d", tvals.new_width);
gtk_entry_set_text (GTK_ENTRY (tint.width_entry), buf);
}
}
}
else
*((int *) data) = val;
}
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