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gimp/plug-ins/common/colorify.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Colorify. Changes the pixel's luminosity to a specified color
* Copyright (C) 1997 Francisco Bustamante
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* Changes:
1.1
-Corrected small bug when calling color selection dialog
-Added LUTs to speed things a little bit up
1.0
-First release */
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_NAME "plug_in_colorify"
#define PLUG_IN_VERSION "1.1"
#define COLOR_SIZE 30
static void query (void);
static void run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void colorify (GimpDrawable *drawable);
static void colorify_row (guchar *row,
gint width,
gint bpp);
static gboolean colorify_dialog (GimpRGB *color);
static void colorify_ok_callback (GtkWidget *widget,
gpointer data);
static void predefined_color_callback (GtkWidget *widget,
gpointer data);
typedef struct
{
GimpRGB color;
} ColorifyVals;
typedef struct
{
gboolean run;
} ColorifyInterface;
static ColorifyInterface cint =
{
FALSE
};
static ColorifyVals cvals =
{
{ 1.0, 1.0, 1.0, 1.0 }
};
static GimpRGB button_color[] =
{
{ 1.0, 0.0, 0.0, 1.0 },
{ 1.0, 1.0, 0.0, 1.0 },
{ 0.0, 1.0, 0.0, 1.0 },
{ 0.0, 1.0, 1.0, 1.0 },
{ 0.0, 0.0, 1.0, 1.0 },
{ 1.0, 0.0, 1.0, 1.0 },
{ 1.0, 1.0, 1.0, 1.0 },
};
GimpPlugInInfo PLUG_IN_INFO =
{
NULL,
NULL,
query,
run,
};
static gint sel_x1, sel_x2, sel_y1, sel_y2;
static gint sel_width, sel_height;
static GtkWidget *custum_color_button = NULL;
static gint lum_red_lookup[256];
static gint lum_green_lookup[256];
static gint lum_blue_lookup[256];
static gint final_red_lookup[256];
static gint final_green_lookup[256];
static gint final_blue_lookup[256];
MAIN ()
static void
query (void)
{
static GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_COLOR, "color", "Color to apply"}
};
static gint nargs = sizeof (args) / sizeof (args[0]);
gimp_install_procedure ("plug_in_colorify",
"Similar to the \"Color\" mode for layers.",
"Makes an average of the RGB channels and uses it "
"to set the color",
"Francisco Bustamante",
"Francisco Bustamante",
"0.0.1",
N_("<Image>/Filters/Colors/Colorify..."),
"RGB*",
GIMP_PLUGIN,
nargs, 0,
args, NULL);
}
static void
run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
GimpRunModeType run_mode;
GimpPDBStatusType status;
static GimpParam values[1];
GimpDrawable *drawable;
INIT_I18N_UI();
status = GIMP_PDB_SUCCESS;
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;
drawable = gimp_drawable_get (param[2].data.d_drawable);
gimp_drawable_mask_bounds (drawable->drawable_id,
&sel_x1, &sel_y1, &sel_x2, &sel_y2);
sel_width = sel_x2 - sel_x1;
sel_height = sel_y2 - sel_y1;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_NAME, &cvals);
if (!colorify_dialog (&cvals.color))
return;
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 4)
status = GIMP_PDB_CALLING_ERROR;
if (status == GIMP_PDB_SUCCESS)
cvals.color = param[3].data.d_color;
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_NAME, &cvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
gimp_progress_init (_("Colorifying..."));
colorify (drawable);
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_NAME, &cvals, sizeof (ColorifyVals));
if (run_mode != GIMP_RUN_NONINTERACTIVE)
{
gimp_displays_flush ();
}
}
values[0].data.d_status = status;
}
static void
colorify (GimpDrawable *drawable)
{
GimpPixelRgn source_region;
GimpPixelRgn dest_region;
guchar *row;
gint bpp;
gint y = 0;
gint i = 0;
gint progress = 0;
for (i = 0; i < 256; i ++)
{
lum_red_lookup[i] = i * INTENSITY_RED;
lum_green_lookup[i] = i * INTENSITY_GREEN;
lum_blue_lookup[i] = i * INTENSITY_BLUE;
final_red_lookup[i] = i * cvals.color.r;
final_green_lookup[i] = i * cvals.color.g;
final_blue_lookup[i] = i * cvals.color.b;
}
bpp = gimp_drawable_bpp (drawable->drawable_id);
row = g_new (guchar, sel_width * bpp);
gimp_tile_cache_ntiles (2 * (sel_width / gimp_tile_width()) + 1);
gimp_pixel_rgn_init (&source_region, drawable,
sel_x1, sel_y1, sel_width, sel_height, FALSE, FALSE);
gimp_pixel_rgn_init (&dest_region, drawable,
sel_x1, sel_y1, sel_width, sel_height, TRUE, TRUE);
for (y = sel_y1; y < sel_y2; y++)
{
gimp_pixel_rgn_get_row (&source_region, row, sel_x1, y, sel_width);
colorify_row (row, sel_width, bpp);
gimp_pixel_rgn_set_row (&dest_region, row, sel_x1, y, sel_width);
gimp_progress_update ((gdouble) ++progress / (gdouble) sel_height);
}
g_free (row);
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id,
sel_x1, sel_y1, sel_width, sel_height);
}
static void
colorify_row (guchar *row,
gint width,
gint bpp)
{
gint cur_x;
gint lum; /* luminosity */
guchar *current = row;
for (cur_x = 0; cur_x < width; cur_x++)
{
lum = (lum_red_lookup[current[0]] +
lum_green_lookup[current[1]] +
lum_blue_lookup[current[2]]);
current[0] = final_red_lookup[lum];
current[1] = final_green_lookup[lum];
current[2] = final_blue_lookup[lum];
current += bpp;
}
}
static gboolean
colorify_dialog (GimpRGB *color)
{
GtkWidget *dialog;
GtkWidget *label;
GtkWidget *button;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *color_area;
gint i;
gimp_ui_init ("colorify", TRUE);
dialog = gimp_dialog_new (_("Colorify"), "colorify",
gimp_standard_help_func, "filters/colorify.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_OK, colorify_ok_callback,
NULL, NULL, NULL, TRUE, FALSE,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
GTK_SIGNAL_FUNC (gtk_main_quit),
NULL);
frame = gtk_frame_new (_("Color"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_set_border_width (GTK_CONTAINER (frame), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
table = gtk_table_new (2, 7, TRUE);
gtk_container_set_border_width (GTK_CONTAINER (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_widget_show (table);
label = gtk_label_new (_("Custom Color:"));
gtk_table_attach (GTK_TABLE (table), label, 4, 6, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
custum_color_button = gimp_color_button_new (_("Colorify Custom Color"),
COLOR_SIZE, COLOR_SIZE,
color,
GIMP_COLOR_AREA_FLAT);
gtk_signal_connect (GTK_OBJECT (custum_color_button), "color_changed",
GTK_SIGNAL_FUNC (gimp_color_button_get_color),
color);
gtk_table_attach (GTK_TABLE (table), custum_color_button, 6, 7, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (custum_color_button);
for (i = 0; i < 7; i++)
{
button = gtk_button_new ();
color_area = gimp_color_area_new (&button_color[i],
GIMP_COLOR_AREA_FLAT,
GDK_BUTTON2_MASK);
gtk_widget_set_usize (GTK_WIDGET (color_area), COLOR_SIZE, COLOR_SIZE);
gtk_container_add (GTK_CONTAINER (button), color_area);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) predefined_color_callback,
color_area);
gtk_widget_show (color_area);
gtk_table_attach (GTK_TABLE (table), button, i, i + 1, 1, 2,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (button);
}
gtk_widget_show (dialog);
gtk_main ();
gdk_flush ();
return cint.run;
}
static void
colorify_ok_callback (GtkWidget *widget,
gpointer data)
{
cint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
predefined_color_callback (GtkWidget *widget,
gpointer data)
{
GimpRGB color;
gimp_color_area_get_color (GIMP_COLOR_AREA (data), &color);
gimp_color_button_set_color (GIMP_COLOR_BUTTON (custum_color_button), &color);
}
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