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gimp/plug-ins/common/alien-map.c

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/**********************************************************************
* AlienMap2 (Co-)sine color transformation plug-in (Version 1.01)
* Martin Weber (martweb@gmx.net)
**********************************************************************
* Most code taken from AlienMap by Daniel Cotting
* This is not a replacement for AlienMap!
**********************************************************************
*/
/* 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 <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-alienmap2"
#define PLUG_IN_BINARY "alien-map"
#define PLUG_IN_ROLE "gimp-alien-map"
#define SCALE_WIDTH 200
#define ENTRY_WIDTH 6
/***** Color model *****/
typedef enum
{
RGB_MODEL = 0,
HSL_MODEL = 1
} ColorModel;
/***** Types *****/
typedef struct
{
gdouble redfrequency;
gdouble redangle;
gdouble greenfrequency;
gdouble greenangle;
gdouble bluefrequency;
gdouble blueangle;
ColorModel colormodel;
gboolean redmode;
gboolean greenmode;
gboolean bluemode;
} alienmap2_vals_t;
/* 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 void alienmap2 (GimpDrawable *drawable);
static void transform (guchar *r,
guchar *g,
guchar *b);
static gint alienmap2_dialog (void);
static void dialog_update_preview (GimpDrawable *drawable,
GimpPreview *preview);
static void dialog_scale_update (GtkAdjustment *adjustment,
gdouble *value);
static void alienmap2_toggle_update (GtkWidget *widget,
gpointer data);
static void alienmap2_radio_update (GtkWidget *widget,
gpointer data);
static void alienmap2_set_labels (void);
static void alienmap2_set_sensitive (void);
static void alienmap2_get_label_size (void);
/***** Variables *****/
static GtkWidget *preview;
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
};
static alienmap2_vals_t wvals =
{
1.0,
0.0,
1.0,
0.0,
1.0,
0.0,
RGB_MODEL,
TRUE,
TRUE,
TRUE
};
static GimpDrawable *drawable = NULL;
static GtkWidget *toggle_modify_rh = NULL;
static GtkWidget *toggle_modify_gs = NULL;
static GtkWidget *toggle_modify_bl = NULL;
static GtkWidget *label_freq_rh = NULL;
static GtkWidget *label_freq_gs = NULL;
static GtkWidget *label_freq_bl = NULL;
static GtkWidget *label_phase_rh = NULL;
static GtkWidget *label_phase_gs = NULL;
static GtkWidget *label_phase_bl = NULL;
static GtkObject *entry_freq_rh = NULL;
static GtkObject *entry_freq_gs = NULL;
static GtkObject *entry_freq_bl = NULL;
static GtkObject *entry_phase_rh = NULL;
static GtkObject *entry_phase_gs = NULL;
static GtkObject *entry_phase_bl = NULL;
static const gchar *ctext[][2] =
{
{ N_("_Modify red channel"), N_("_Modify hue channel") },
{ N_("Mo_dify green channel"), N_("Mo_dify saturation channel") },
{ N_("Mod_ify blue channel"), N_("Mod_ify luminosity channel") }
};
static const gchar *etext[][2] =
{
{ N_("Red _frequency:"), N_("Hue _frequency:") },
{ N_("Green fr_equency:"), N_("Saturation fr_equency:") },
{ N_("Blue freq_uency:"), N_("Luminosity freq_uency:") },
{ N_("Red _phaseshift:"), N_("Hue _phaseshift:") },
{ N_("Green ph_aseshift:"), N_("Saturation ph_aseshift:") },
{ N_("Blue pha_seshift:"), N_("Luminosity pha_seshift:") },
};
static gint elabel_maxwidth = 0;
/***** Functions *****/
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" },
{ GIMP_PDB_FLOAT, "redfrequency", "Red/hue component frequency factor" },
{ GIMP_PDB_FLOAT, "redangle", "Red/hue component angle factor (0-360)" },
{ GIMP_PDB_FLOAT, "greenfrequency", "Green/saturation component frequency factor" },
{ GIMP_PDB_FLOAT, "greenangle", "Green/saturation component angle factor (0-360)" },
{ GIMP_PDB_FLOAT, "bluefrequency", "Blue/luminance component frequency factor" },
{ GIMP_PDB_FLOAT, "blueangle", "Blue/luminance component angle factor (0-360)" },
{ GIMP_PDB_INT8, "colormodel", "Color model { RGB-MODEL (0), HSL-MODEL (1) }" },
{ GIMP_PDB_INT8, "redmode", "Red/hue application mode { TRUE, FALSE }" },
{ GIMP_PDB_INT8, "greenmode", "Green/saturation application mode { TRUE, FALSE }" },
{ GIMP_PDB_INT8, "bluemode", "Blue/luminance application mode { TRUE, FALSE }" },
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Alter colors in various psychedelic ways"),
"No help yet. Just try it and you'll see!",
"Martin Weber (martweb@gmx.net)",
"Martin Weber (martweb@gmx.net",
"24th April 1998",
N_("_Alien Map..."),
"RGB*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Colors/Map");
}
static void
transform (guchar *r,
guchar *g,
guchar *b)
{
switch (wvals.colormodel)
{
case HSL_MODEL:
{
GimpHSL hsl;
GimpRGB rgb;
gimp_rgb_set_uchar (&rgb, *r, *g, *b);
gimp_rgb_to_hsl (&rgb, &hsl);
if (wvals.redmode)
hsl.h = 0.5 * (1.0 + sin (((2 * hsl.h - 1.0) * wvals.redfrequency +
wvals.redangle / 180.0) * G_PI));
if (wvals.greenmode)
hsl.s = 0.5 * (1.0 + sin (((2 * hsl.s - 1.0) * wvals.greenfrequency +
wvals.greenangle / 180.0) * G_PI));
if (wvals.bluemode)
hsl.l = 0.5 * (1.0 + sin (((2 * hsl.l - 1.0) * wvals.bluefrequency +
wvals.blueangle / 180.0) * G_PI));
gimp_hsl_to_rgb (&hsl, &rgb);
gimp_rgb_get_uchar (&rgb, r, g, b);
}
break;
case RGB_MODEL:
if (wvals.redmode)
*r = ROUND (127.5 * (1.0 +
sin (((*r / 127.5 - 1.0) * wvals.redfrequency +
wvals.redangle / 180.0) * G_PI)));
if (wvals.greenmode)
*g = ROUND (127.5 * (1.0 +
sin (((*g / 127.5 - 1.0) * wvals.greenfrequency +
wvals.greenangle / 180.0) * G_PI)));
if (wvals.bluemode)
*b = ROUND (127.5 * (1.0 +
sin (((*b / 127.5 - 1.0) * wvals.bluefrequency +
wvals.blueangle / 180.0) * G_PI)));
break;
}
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpRunMode run_mode;
INIT_I18N ();
run_mode = param[0].data.d_int32;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
*nreturn_vals = 1;
*return_vals = values;
/* Get the specified drawable */
drawable = gimp_drawable_get (param[2].data.d_drawable);
/* See how we will run */
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_PROC, &wvals);
/* Get information from the dialog */
if (!alienmap2_dialog ())
return;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are present */
if (nparams != 13)
status = GIMP_PDB_CALLING_ERROR;
if (status == GIMP_PDB_SUCCESS)
{
wvals.redfrequency = param[3].data.d_float;
wvals.redangle = param[4].data.d_float;
wvals.greenfrequency = param[5].data.d_float;
wvals.greenangle = param[6].data.d_float;
wvals.bluefrequency = param[7].data.d_float;
wvals.blueangle = param[8].data.d_float;
wvals.colormodel = param[9].data.d_int8;
wvals.redmode = param[10].data.d_int8 ? TRUE : FALSE;
wvals.greenmode = param[11].data.d_int8 ? TRUE : FALSE;
wvals.bluemode = param[12].data.d_int8 ? TRUE : FALSE;
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_PROC, &wvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
/* Make sure that the drawable is RGB or RGBA */
if (gimp_drawable_is_rgb (drawable->drawable_id))
{
gimp_progress_init (_("Alien Map: Transforming"));
/* Set the tile cache size */
gimp_tile_cache_ntiles (2 * (drawable->width /
gimp_tile_width () + 1));
/* Run! */
alienmap2 (drawable);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
/* Store data */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC,
&wvals, sizeof (alienmap2_vals_t));
}
else
{
/* gimp_message("This filter only applies on RGB_MODEL-images"); */
status = GIMP_PDB_EXECUTION_ERROR;
}
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
static void
alienmap2_func (const guchar *src,
guchar *dest,
gint bpp,
gpointer data)
{
guchar v1, v2, v3;
v1 = src[0];
v2 = src[1];
v3 = src[2];
transform (&v1, &v2, &v3);
dest[0] = v1;
dest[1] = v2;
dest[2] = v3;
if (bpp == 4)
dest[3] = src[3];
}
static void
alienmap2 (GimpDrawable *drawable)
{
gimp_rgn_iterate2 (drawable, 0 /* unused */, alienmap2_func, NULL);
}
static gint
alienmap2_dialog (void)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *top_table;
GtkWidget *frame;
GtkWidget *toggle;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *table;
GtkObject *adj;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("Alien Map"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
preview = gimp_zoom_preview_new (drawable);
gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (dialog_update_preview),
drawable);
top_table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (top_table), 12);
gtk_table_set_row_spacings (GTK_TABLE (top_table), 12);
gtk_box_pack_start (GTK_BOX (main_vbox), top_table, FALSE, FALSE, 0);
gtk_widget_show (top_table);
/* Controls */
table = gtk_table_new (6, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_table_attach (GTK_TABLE (top_table), table, 0, 2, 1, 2,
GTK_EXPAND | GTK_FILL, 0, 0, 0);
gtk_widget_show (table);
entry_freq_rh = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.redfrequency, 0, 20.0, 0.1, 1, 2,
TRUE, 0, 0,
_("Number of cycles covering full value range"),
NULL);
label_freq_rh = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.redfrequency);
entry_phase_rh = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.redangle, 0, 360.0, 1, 15, 2,
TRUE, 0, 0,
_("Phase angle, range 0-360"),
NULL);
label_phase_rh = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.redangle);
entry_freq_gs = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.greenfrequency, 0, 20.0, 0.1, 1, 2,
TRUE, 0, 0,
_("Number of cycles covering full value range"),
NULL);
label_freq_gs = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.greenfrequency);
entry_phase_gs = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.redangle, 0, 360.0, 1, 15, 2,
TRUE, 0, 0,
_("Phase angle, range 0-360"),
NULL);
label_phase_gs = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.greenangle);
entry_freq_bl = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 4,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.bluefrequency, 0, 20.0, 0.1, 1, 2,
TRUE, 0, 0,
_("Number of cycles covering full value range"),
NULL);
label_freq_bl = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.bluefrequency);
entry_phase_bl = adj =
gimp_scale_entry_new (GTK_TABLE (table), 0, 5,
NULL, SCALE_WIDTH, ENTRY_WIDTH,
wvals.blueangle, 0, 360.0, 1, 15, 2,
TRUE, 0, 0,
_("Phase angle, range 0-360"),
NULL);
label_phase_bl = GIMP_SCALE_ENTRY_LABEL (adj);
g_signal_connect (adj, "value-changed",
G_CALLBACK (dialog_scale_update),
&wvals.blueangle);
/* Mode toggle box */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_table_attach (GTK_TABLE (top_table), hbox, 1, 2, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
gtk_widget_show (hbox);
frame =
gimp_int_radio_group_new (TRUE, _("Mode"),
G_CALLBACK (alienmap2_radio_update),
&wvals.colormodel, wvals.colormodel,
_("_RGB color model"), RGB_MODEL, NULL,
_("_HSL color model"), HSL_MODEL, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, FALSE, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
toggle_modify_rh = toggle = gtk_check_button_new_with_mnemonic (NULL);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.redmode);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (alienmap2_toggle_update),
&wvals.redmode);
toggle_modify_gs = toggle = gtk_check_button_new_with_mnemonic (NULL);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.greenmode);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (alienmap2_toggle_update),
&wvals.greenmode);
toggle_modify_bl = toggle = gtk_check_button_new_with_mnemonic (NULL);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), wvals.bluemode);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (alienmap2_toggle_update),
&wvals.bluemode);
gtk_widget_show (frame);
gtk_widget_show (dialog);
alienmap2_get_label_size ();
alienmap2_set_labels ();
alienmap2_set_sensitive ();
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
static void
dialog_update_preview (GimpDrawable *drawable,
GimpPreview *preview)
{
guchar *dest, *src;
gint width, height, bpp;
gint i;
src = gimp_zoom_preview_get_source (GIMP_ZOOM_PREVIEW (preview),
&width, &height, &bpp);
dest = g_new (guchar, width * height * bpp);
for (i = 0 ; i < width * height ; i++)
alienmap2_func (src + i * bpp, dest + i * bpp, bpp, NULL);
gimp_preview_draw_buffer (preview, dest, width * bpp);
g_free (src);
g_free (dest);
}
static void
dialog_scale_update (GtkAdjustment *adjustment,
gdouble *value)
{
gimp_double_adjustment_update (adjustment, value);
gimp_preview_invalidate (GIMP_PREVIEW (preview));
}
static void
alienmap2_toggle_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
alienmap2_set_sensitive ();
gimp_preview_invalidate (GIMP_PREVIEW (preview));
}
static void
alienmap2_radio_update (GtkWidget *widget,
gpointer data)
{
gimp_radio_button_update (widget, data);
alienmap2_set_labels ();
gimp_preview_invalidate (GIMP_PREVIEW (preview));
}
static void
alienmap2_set_sensitive (void)
{
gimp_scale_entry_set_sensitive (entry_freq_rh, wvals.redmode);
gimp_scale_entry_set_sensitive (entry_phase_rh, wvals.redmode);
gimp_scale_entry_set_sensitive (entry_freq_gs, wvals.greenmode);
gimp_scale_entry_set_sensitive (entry_phase_gs, wvals.greenmode);
gimp_scale_entry_set_sensitive (entry_freq_bl, wvals.bluemode);
gimp_scale_entry_set_sensitive (entry_phase_bl, wvals.bluemode);
}
static void
alienmap2_set_labels (void)
{
gtk_button_set_label (GTK_BUTTON (toggle_modify_rh),
gettext (ctext[0][wvals.colormodel]));
gtk_button_set_label (GTK_BUTTON (toggle_modify_gs),
gettext (ctext[1][wvals.colormodel]));
gtk_button_set_label (GTK_BUTTON (toggle_modify_bl),
gettext (ctext[2][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_freq_rh),
gettext (etext[0][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_freq_gs),
gettext (etext[1][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_freq_bl),
gettext (etext[2][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_phase_rh),
gettext (etext[3][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_phase_gs),
gettext (etext[4][wvals.colormodel]));
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_phase_bl),
gettext (etext[5][wvals.colormodel]));
gtk_widget_set_size_request (label_freq_rh, elabel_maxwidth, -1);
}
static void
alienmap2_get_label_size (void)
{
PangoLayout *layout;
gint width;
gint i, j;
elabel_maxwidth = 0;
for (i = 0; i < 6; i++)
for (j = 0; j < 2; j++)
{
gtk_label_set_text_with_mnemonic (GTK_LABEL (label_freq_rh),
gettext (etext[i][j]));
layout = gtk_label_get_layout (GTK_LABEL (label_freq_rh));
pango_layout_get_pixel_size (layout, &width, NULL);
if (width > elabel_maxwidth)
elabel_maxwidth = width;
}
}
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