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gimp/plug-ins/common/colorify.c

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/* GIMP - The GNU 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 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-colorify"
#define PLUG_IN_BINARY "colorify"
#define PLUG_IN_ROLE "gimp-colorify"
#define PLUG_IN_VERSION "1.1"
#define COLOR_SIZE 30
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void colorify (GimpDrawable *drawable,
GimpPreview *preview);
static gboolean colorify_dialog (GimpDrawable *drawable);
static void predefined_color_callback (GtkWidget *widget,
gpointer data);
typedef struct
{
GimpRGB color;
} ColorifyVals;
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 },
};
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL,
NULL,
query,
run,
};
static GtkWidget *custom_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 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_COLOR, "color", "Color to apply" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Replace all colors with shades of a specified color"),
"Makes an average of the RGB channels and uses it "
"to set the color",
"Francisco Bustamante",
"Francisco Bustamante",
PLUG_IN_VERSION,
N_("Colorif_y..."),
"RGB*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
GimpPDBStatusType status;
static GimpParam values[1];
GimpDrawable *drawable;
GimpRunMode run_mode;
INIT_I18N ();
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);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &cvals);
if (!colorify_dialog (drawable))
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_PROC, &cvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
gimp_progress_init (_("Colorifying"));
colorify (drawable, NULL);
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC, &cvals, sizeof (ColorifyVals));
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
}
gimp_drawable_detach (drawable);
values[0].data.d_status = status;
}
static void
colorify_func (const guchar *src,
guchar *dest,
gint bpp,
gpointer data)
{
gint lum;
lum = lum_red_lookup[src[0]] +
lum_green_lookup[src[1]] +
lum_blue_lookup[src[2]];
dest[0] = final_red_lookup[lum];
dest[1] = final_green_lookup[lum];
dest[2] = final_blue_lookup[lum];
if (bpp == 4)
dest[3] = src[3];
}
static void
colorify (GimpDrawable *drawable,
GimpPreview *preview)
{
gint i;
for (i = 0; i < 256; i ++)
{
lum_red_lookup[i] = i * GIMP_RGB_LUMINANCE_RED;
lum_green_lookup[i] = i * GIMP_RGB_LUMINANCE_GREEN;
lum_blue_lookup[i] = i * GIMP_RGB_LUMINANCE_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;
}
if (preview)
{
gint width, height, bytes;
guchar *src;
src = gimp_zoom_preview_get_source (GIMP_ZOOM_PREVIEW (preview),
&width, &height, &bytes);
for (i = 0; i < width * height; i++)
colorify_func (src + i * bytes, src + i * bytes, bytes, NULL);
gimp_preview_draw_buffer (preview, src, width * bytes);
g_free (src);
}
else
{
gimp_rgn_iterate2 (drawable, 0 /* unused */, colorify_func, NULL);
}
}
static gboolean
colorify_dialog (GimpDrawable *drawable)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *label;
GtkWidget *button;
GtkWidget *table;
GtkWidget *color_area;
gint i;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("Colorify"), 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 (colorify),
drawable);
table = gtk_table_new (2, 7, TRUE);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
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);
custom_color_button = gimp_color_button_new (_("Colorify Custom Color"),
COLOR_SIZE, COLOR_SIZE,
&cvals.color,
GIMP_COLOR_AREA_FLAT);
g_signal_connect (custom_color_button, "color-changed",
G_CALLBACK (gimp_color_button_get_color),
&cvals.color);
g_signal_connect_swapped (custom_color_button, "color-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), custom_color_button, 6, 7, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (custom_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_size_request (GTK_WIDGET (color_area),
COLOR_SIZE, COLOR_SIZE);
gtk_container_add (GTK_CONTAINER (button), color_area);
g_signal_connect (button, "clicked",
G_CALLBACK (predefined_color_callback),
&button_color[i]);
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);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
static void
predefined_color_callback (GtkWidget *widget,
gpointer data)
{
gimp_color_button_set_color (GIMP_COLOR_BUTTON (custom_color_button),
(GimpRGB *) data);
}
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