mirror of https://github.com/GNOME/gimp.git
307 lines
7.6 KiB
C
307 lines
7.6 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* Colorify. Changes the pixel's luminosity to a specified color
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* Copyright (C) 1997 Francisco Bustamante
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <libgimp/gimp.h>
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#include <libgimp/gimpui.h>
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#include "libgimp/stdplugins-intl.h"
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#define PLUG_IN_NAME "plug_in_colorify"
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#define PLUG_IN_VERSION "1.1"
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#define HELP_ID "plug-in-colorify"
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#define COLOR_SIZE 30
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static void query (void);
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static void run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals);
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static void colorify (GimpDrawable *drawable);
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static gboolean colorify_dialog (GimpRGB *color);
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static void predefined_color_callback (GtkWidget *widget,
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gpointer data);
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typedef struct
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{
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GimpRGB color;
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} ColorifyVals;
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static ColorifyVals cvals =
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{
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{ 1.0, 1.0, 1.0, 1.0 }
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};
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static GimpRGB button_color[] =
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{
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{ 1.0, 0.0, 0.0, 1.0 },
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{ 1.0, 1.0, 0.0, 1.0 },
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{ 0.0, 1.0, 0.0, 1.0 },
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{ 0.0, 1.0, 1.0, 1.0 },
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{ 0.0, 0.0, 1.0, 1.0 },
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{ 1.0, 0.0, 1.0, 1.0 },
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{ 1.0, 1.0, 1.0, 1.0 },
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};
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static GimpRunMode run_mode;
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GimpPlugInInfo PLUG_IN_INFO =
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{
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NULL,
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NULL,
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query,
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run,
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};
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static GtkWidget *custom_color_button = NULL;
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static gint lum_red_lookup[256];
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static gint lum_green_lookup[256];
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static gint lum_blue_lookup[256];
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static gint final_red_lookup[256];
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static gint final_green_lookup[256];
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static gint final_blue_lookup[256];
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MAIN ()
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static void
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query (void)
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{
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static GimpParamDef args[] =
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{
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{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
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{ GIMP_PDB_IMAGE, "image", "Input image" },
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{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
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{ GIMP_PDB_COLOR, "color", "Color to apply"}
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};
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gimp_install_procedure (PLUG_IN_NAME,
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"Similar to the \"Color\" mode for layers.",
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"Makes an average of the RGB channels and uses it "
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"to set the color",
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"Francisco Bustamante",
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"Francisco Bustamante",
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PLUG_IN_VERSION,
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N_("_Colorify..."),
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"RGB*",
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GIMP_PLUGIN,
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G_N_ELEMENTS (args), 0,
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args, NULL);
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gimp_plugin_menu_register (PLUG_IN_NAME,
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N_("<Image>/Filters/Colors"));
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}
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static void
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run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals)
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{
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GimpPDBStatusType status;
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static GimpParam values[1];
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GimpDrawable *drawable;
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INIT_I18N ();
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status = GIMP_PDB_SUCCESS;
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run_mode = param[0].data.d_int32;
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values[0].type = GIMP_PDB_STATUS;
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values[0].data.d_status = status;
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*nreturn_vals = 1;
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*return_vals = values;
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drawable = gimp_drawable_get (param[2].data.d_drawable);
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switch (run_mode)
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{
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case GIMP_RUN_INTERACTIVE:
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gimp_get_data (PLUG_IN_NAME, &cvals);
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if (!colorify_dialog (&cvals.color))
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return;
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break;
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case GIMP_RUN_NONINTERACTIVE:
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if (nparams != 4)
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status = GIMP_PDB_CALLING_ERROR;
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if (status == GIMP_PDB_SUCCESS)
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cvals.color = param[3].data.d_color;
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break;
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case GIMP_RUN_WITH_LAST_VALS:
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/* Possibly retrieve data */
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gimp_get_data (PLUG_IN_NAME, &cvals);
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break;
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default:
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break;
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}
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if (status == GIMP_PDB_SUCCESS)
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{
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gimp_progress_init (_("Colorifying..."));
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colorify (drawable);
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if (run_mode == GIMP_RUN_INTERACTIVE)
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gimp_set_data (PLUG_IN_NAME, &cvals, sizeof (ColorifyVals));
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if (run_mode != GIMP_RUN_NONINTERACTIVE)
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{
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gimp_displays_flush ();
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}
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}
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gimp_drawable_detach (drawable);
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values[0].data.d_status = status;
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}
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static void
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colorify_func (const guchar *src,
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guchar *dest,
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gint bpp,
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gpointer data)
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{
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gint lum;
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lum = lum_red_lookup[src[0]] + lum_green_lookup[src[1]] +
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lum_blue_lookup[src[2]];
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dest[0] = final_red_lookup[lum];
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dest[1] = final_green_lookup[lum];
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dest[2] = final_blue_lookup[lum];
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if (bpp == 4)
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dest[3] = src[3];
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}
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static void
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colorify (GimpDrawable *drawable)
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{
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gint i;
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for (i = 0; i < 256; i ++)
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{
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lum_red_lookup[i] = i * GIMP_RGB_INTENSITY_RED;
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lum_green_lookup[i] = i * GIMP_RGB_INTENSITY_GREEN;
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lum_blue_lookup[i] = i * GIMP_RGB_INTENSITY_BLUE;
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final_red_lookup[i] = i * cvals.color.r;
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final_green_lookup[i] = i * cvals.color.g;
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final_blue_lookup[i] = i * cvals.color.b;
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}
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gimp_rgn_iterate2 (drawable, run_mode, colorify_func, NULL);
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}
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static gboolean
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colorify_dialog (GimpRGB *color)
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{
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GtkWidget *dialog;
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GtkWidget *label;
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GtkWidget *button;
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GtkWidget *table;
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GtkWidget *color_area;
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gint i;
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gboolean run;
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gimp_ui_init ("colorify", TRUE);
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dialog = gimp_dialog_new (_("Colorify"), "colorify",
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NULL, 0,
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gimp_standard_help_func, HELP_ID,
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GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
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GTK_STOCK_OK, GTK_RESPONSE_OK,
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NULL);
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table = gtk_table_new (2, 7, TRUE);
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gtk_container_set_border_width (GTK_CONTAINER (table), 12);
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gtk_table_set_row_spacings (GTK_TABLE (table), 6);
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gtk_table_set_col_spacings (GTK_TABLE (table), 6);
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gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
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table, TRUE, TRUE, 0);
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gtk_widget_show (table);
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label = gtk_label_new (_("Custom Color:"));
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gtk_table_attach (GTK_TABLE (table), label, 4, 6, 0, 1,
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GTK_FILL, GTK_FILL, 0, 0);
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gtk_widget_show (label);
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custom_color_button = gimp_color_button_new (_("Colorify Custom Color"),
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COLOR_SIZE, COLOR_SIZE,
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color,
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GIMP_COLOR_AREA_FLAT);
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g_signal_connect (custom_color_button, "color_changed",
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G_CALLBACK (gimp_color_button_get_color),
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color);
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gtk_table_attach (GTK_TABLE (table), custom_color_button, 6, 7, 0, 1,
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GTK_FILL, GTK_FILL, 0, 0);
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gtk_widget_show (custom_color_button);
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for (i = 0; i < 7; i++)
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{
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button = gtk_button_new ();
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color_area = gimp_color_area_new (&button_color[i],
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GIMP_COLOR_AREA_FLAT,
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GDK_BUTTON2_MASK);
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gtk_widget_set_size_request (GTK_WIDGET (color_area),
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COLOR_SIZE, COLOR_SIZE);
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gtk_container_add (GTK_CONTAINER (button), color_area);
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g_signal_connect (button, "clicked",
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G_CALLBACK (predefined_color_callback),
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&button_color[i]);
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gtk_widget_show (color_area);
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gtk_table_attach (GTK_TABLE (table), button, i, i + 1, 1, 2,
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GTK_FILL, GTK_FILL, 0, 0);
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gtk_widget_show (button);
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}
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gtk_widget_show (dialog);
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run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
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gtk_widget_destroy (dialog);
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return run;
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}
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static void
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predefined_color_callback (GtkWidget *widget,
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gpointer data)
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{
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gimp_color_button_set_color (GIMP_COLOR_BUTTON (custom_color_button),
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(GimpRGB *) data);
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}
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