/**************************************************************************** * This is a plugin for GIMP v 2.0 or later. * * Copyright (C) 2002 Martin Guldahl * Based on GTK code from: * homomorphic (Copyright (C) 2001 Valter Marcus Hilden) * rand-noted (Copyright (C) 1998 Miles O'Neal) * nlfilt (Copyright (C) 1997 Eric L. Hernes) * pagecurl (Copyright (C) 1996 Federico Mena Quintero) * * 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 . * ****************************************************************************/ #include "config.h" #include #include #include #include #include #include "libgimp/stdplugins-intl.h" #define PLUG_IN_PROC "plug-in-colors-channel-mixer" #define PLUG_IN_BINARY "channel-mixer" #define PLUG_IN_ROLE "gimp-channel-mixer" #define CM_LINE_SIZE 1024 typedef enum { CM_RED_CHANNEL, CM_GREEN_CHANNEL, CM_BLUE_CHANNEL } CmModeType; typedef struct { gdouble red_gain; gdouble green_gain; gdouble blue_gain; } CmChannelType; typedef struct { CmChannelType red; CmChannelType green; CmChannelType blue; CmChannelType black; gboolean monochrome; gboolean preserve_luminosity; CmModeType output_channel; gboolean preview; GtkAdjustment *red_data; GtkAdjustment *green_data; GtkAdjustment *blue_data; GtkWidget *combo; CmModeType old_output_channel; GtkWidget *monochrome_toggle; GtkWidget *preserve_luminosity_toggle; } CmParamsType; static void query (void); static void run (const gchar *name, gint nparams, const GimpParam *param, gint *nreturn_vals, GimpParam **return_vals); static void cm_set_defaults (CmParamsType *mix); static void channel_mixer (CmParamsType *mix, GimpDrawable *drawable); static gboolean cm_dialog (CmParamsType *mix, GimpDrawable *drawable); static void cm_red_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix); static void cm_green_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix); static void cm_blue_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix); static void cm_monochrome_callback (GtkWidget *widget, CmParamsType *mix); static void cm_preserve_luminosity_callback (GtkWidget *widget, CmParamsType *mix); static void cm_load_file_callback (GtkWidget *widget, CmParamsType *mix); static void cm_load_file_response_callback (GtkWidget *dialog, gint response_id, CmParamsType *mix); static void cm_save_file_callback (GtkWidget *widget, CmParamsType *mix); static void cm_save_file_response_callback (GtkWidget *dialog, gint response_id, CmParamsType *mix); static void cm_reset_callback (GtkWidget *widget, CmParamsType *mix); static void cm_combo_callback (GtkWidget *widget, CmParamsType *mix); static gdouble cm_calculate_norm (CmParamsType *mix, CmChannelType *ch); static inline guchar cm_mix_pixel (CmChannelType *ch, guchar r, guchar g, guchar b, gdouble norm); static void cm_preview (CmParamsType *mix, GimpPreview *preview); static void cm_set_adjusters (CmParamsType *mix); static void cm_update_ui (CmParamsType *mix); static void cm_save_file (CmParamsType *mix, FILE *fp); const GimpPlugInInfo PLUG_IN_INFO = { NULL, /* init_proc */ NULL, /* quit_proc */ query, /* query_proc */ run /* run_proc */ }; static GtkWidget *preview; 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 (unused)" }, { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }, { GIMP_PDB_INT32, "monochrome", "Monochrome { TRUE, FALSE }" }, { GIMP_PDB_FLOAT, "rr-gain", "Set the red gain for the red channel" }, { GIMP_PDB_FLOAT, "rg-gain", "Set the green gain for the red channel" }, { GIMP_PDB_FLOAT, "rb-gain", "Set the blue gain for the red channel" }, { GIMP_PDB_FLOAT, "gr-gain", "Set the red gain for the green channel" }, { GIMP_PDB_FLOAT, "gg-gain", "Set the green gain for the green channel" }, { GIMP_PDB_FLOAT, "gb-gain", "Set the blue gain for the green channel" }, { GIMP_PDB_FLOAT, "br-gain", "Set the red gain for the blue channel" }, { GIMP_PDB_FLOAT, "bg-gain", "Set the green gain for the blue channel" }, { GIMP_PDB_FLOAT, "bb-gain", "Set the blue gain for the blue channel" } }; gimp_install_procedure (PLUG_IN_PROC, N_("Alter colors by mixing RGB Channels"), "This plug-in mixes the RGB channels.", "Martin Guldahl ", "Martin Guldahl ", "2002", N_("Channel Mi_xer..."), "RGB*", GIMP_PLUGIN, G_N_ELEMENTS (args), 0, args, NULL); gimp_plugin_menu_register (PLUG_IN_PROC, "/Colors/Components"); } static void run (const gchar *name, gint nparams, const GimpParam *param, gint *nreturn_vals, GimpParam **return_vals) { static GimpParam values[1]; GimpDrawable *drawable; GimpRunMode run_mode; CmParamsType mix; GimpPDBStatusType status = GIMP_PDB_SUCCESS; run_mode = param[0].data.d_int32; INIT_I18N (); *nreturn_vals = 1; *return_vals = values; values[0].type = GIMP_PDB_STATUS; values[0].data.d_status = status; drawable = gimp_drawable_get (param[2].data.d_drawable); if (gimp_drawable_is_rgb (drawable->drawable_id)) { cm_set_defaults (&mix); mix.preview = TRUE; switch (run_mode) { case GIMP_RUN_INTERACTIVE: gimp_get_data (PLUG_IN_PROC, &mix); if (! cm_dialog (&mix, drawable)) { gimp_drawable_detach (drawable); return; } break; case GIMP_RUN_NONINTERACTIVE: mix.monochrome = param[3].data.d_int32; if (mix.monochrome) { mix.black.red_gain = param[4].data.d_float; mix.black.green_gain = param[5].data.d_float; mix.black.blue_gain = param[6].data.d_float; } else { mix.red.red_gain = param[4].data.d_float; mix.red.green_gain = param[5].data.d_float; mix.red.blue_gain = param[6].data.d_float; mix.green.red_gain = param[7].data.d_float; mix.green.green_gain = param[8].data.d_float; mix.green.blue_gain = param[9].data.d_float; mix.blue.red_gain = param[10].data.d_float; mix.blue.green_gain = param[11].data.d_float; mix.blue.blue_gain = param[12].data.d_float; } break; case GIMP_RUN_WITH_LAST_VALS: gimp_get_data (PLUG_IN_PROC, &mix); break; default: break; } if (status == GIMP_PDB_SUCCESS) { /* printf("Channel Mixer:: Mode:%d r %f g %f b %f\n ", param[3].data.d_int32, mix.black.red_gain, mix.black.green_gain, mix.black.blue_gain); */ gimp_progress_init (_("Channel Mixer")); channel_mixer (&mix, drawable); if (run_mode != GIMP_RUN_NONINTERACTIVE) gimp_displays_flush (); if (run_mode == GIMP_RUN_INTERACTIVE) gimp_set_data (PLUG_IN_PROC, &mix, sizeof (CmParamsType)); } } else { status = GIMP_PDB_EXECUTION_ERROR; } values[0].data.d_status = status; gimp_drawable_detach (drawable); } static void cm_set_defaults (CmParamsType *mix) { const CmParamsType defaults = { { 1.0, 0.0, 0.0 }, { 0.0, 1.0, 0.0 }, { 0.0, 0.0, 1.0 }, { 1.0, 0.0, 0.0 }, FALSE, FALSE, CM_RED_CHANNEL }; memcpy (mix, &defaults, G_STRUCT_OFFSET (CmParamsType, preview)); } static gdouble cm_calculate_norm (CmParamsType *mix, CmChannelType *ch) { gdouble sum = ch->red_gain + ch->green_gain + ch->blue_gain; if (sum == 0.0 || ! mix->preserve_luminosity) return 1.0; return fabs (1 / sum); } static inline guchar cm_mix_pixel (CmChannelType *ch, guchar r, guchar g, guchar b, gdouble norm) { gdouble c = ch->red_gain * r + ch->green_gain * g + ch->blue_gain * b; c *= norm; return (guchar) CLAMP0255 (c); } static inline void cm_process_pixel (CmParamsType *mix, const guchar *s, guchar *d, const gdouble red_norm, const gdouble green_norm, const gdouble blue_norm, const gdouble black_norm) { if (mix->monochrome) { d[0] = d[1] = d[2] = cm_mix_pixel (&mix->black, s[0], s[1], s[2], black_norm); } else { d[0] = cm_mix_pixel (&mix->red, s[0], s[1], s[2], red_norm); d[1] = cm_mix_pixel (&mix->green, s[0], s[1], s[2], green_norm); d[2] = cm_mix_pixel (&mix->blue, s[0], s[1], s[2], blue_norm); } } static void channel_mixer (CmParamsType *mix, GimpDrawable *drawable) { GimpPixelRgn src_rgn, dest_rgn; gpointer pr; gboolean has_alpha; gdouble red_norm, green_norm, blue_norm, black_norm; gint i, total, processed = 0; gint x1, y1; gint width, height; if (! gimp_drawable_mask_intersect (drawable->drawable_id, &x1, &y1, &width, &height)) return; red_norm = cm_calculate_norm (mix, &mix->red); green_norm = cm_calculate_norm (mix, &mix->green); blue_norm = cm_calculate_norm (mix, &mix->blue); black_norm = cm_calculate_norm (mix, &mix->black); has_alpha = gimp_drawable_has_alpha (drawable->drawable_id); gimp_pixel_rgn_init (&src_rgn, drawable, x1, y1, width, height, FALSE, FALSE); gimp_pixel_rgn_init (&dest_rgn, drawable, x1, y1, width, height, TRUE, TRUE); total = width * height; for (pr = gimp_pixel_rgns_register (2, &src_rgn, &dest_rgn), i = 0; pr != NULL; pr = gimp_pixel_rgns_process (pr), i++) { const guchar *src = src_rgn.data; guchar *dest = dest_rgn.data; gint x, y; for (y = 0; y < src_rgn.h; y++) { const guchar *s = src; guchar *d = dest; if (has_alpha) { for (x = 0; x < src_rgn.w; x++, s += 4, d += 4) { cm_process_pixel (mix, s, d, red_norm, green_norm, blue_norm, black_norm); d[3] = s[3]; } } else { for (x = 0; x < src_rgn.w; x++, s += 3, d += 3) { cm_process_pixel (mix, s, d, red_norm, green_norm, blue_norm, black_norm); } } src += src_rgn.rowstride; dest += dest_rgn.rowstride; } processed += src_rgn.w * src_rgn.h; if (i % 16 == 0) gimp_progress_update ((gdouble) processed / (gdouble) total); } gimp_progress_update (1.0); gimp_drawable_flush (drawable); gimp_drawable_merge_shadow (drawable->drawable_id, TRUE); gimp_drawable_update (drawable->drawable_id, x1, y1, width, height); } static gboolean cm_dialog (CmParamsType *mix, GimpDrawable *drawable) { GtkWidget *dialog; GtkWidget *main_vbox; GtkWidget *vbox; GtkWidget *frame; GtkWidget *hbox; GtkWidget *button; GtkWidget *label; GtkWidget *image; GtkWidget *table; gdouble red_value, green_value, blue_value; gboolean run; gimp_ui_init (PLUG_IN_BINARY, FALSE); /* get values */ if (mix->monochrome) { red_value = mix->black.red_gain * 100; green_value = mix->black.green_gain * 100; blue_value = mix->black.blue_gain * 100; } else { switch (mix->output_channel) { case CM_RED_CHANNEL: red_value = mix->red.red_gain * 100; green_value = mix->red.green_gain * 100; blue_value = mix->red.blue_gain * 100; break; case CM_GREEN_CHANNEL: red_value = mix->green.red_gain * 100; green_value = mix->green.green_gain * 100; blue_value = mix->green.blue_gain * 100; break; case CM_BLUE_CHANNEL: red_value = mix->blue.red_gain * 100; green_value = mix->blue.green_gain * 100; blue_value = mix->blue.blue_gain * 100; break; default: g_assert_not_reached (); red_value = green_value = blue_value = 0.0; break; } } dialog = gimp_dialog_new (_("Channel Mixer"), 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 (cm_preview), mix); frame = gimp_frame_new (NULL); gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0); gtk_widget_show (frame); hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); gtk_frame_set_label_widget (GTK_FRAME (frame), hbox); gtk_widget_show (hbox); label = gtk_label_new_with_mnemonic (_("O_utput channel:")); gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0); gtk_widget_show (label); mix->combo = g_object_new (GIMP_TYPE_INT_COMBO_BOX, NULL); gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (mix->combo), GIMP_INT_STORE_VALUE, CM_RED_CHANNEL, GIMP_INT_STORE_LABEL, _("Red"), GIMP_INT_STORE_STOCK_ID, GIMP_STOCK_CHANNEL_RED, -1); gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (mix->combo), GIMP_INT_STORE_VALUE, CM_GREEN_CHANNEL, GIMP_INT_STORE_LABEL, _("Green"), GIMP_INT_STORE_STOCK_ID, GIMP_STOCK_CHANNEL_GREEN, -1); gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (mix->combo), GIMP_INT_STORE_VALUE, CM_BLUE_CHANNEL, GIMP_INT_STORE_LABEL, _("Blue"), GIMP_INT_STORE_STOCK_ID, GIMP_STOCK_CHANNEL_BLUE, -1); gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (mix->combo), mix->output_channel); g_signal_connect (mix->combo, "changed", G_CALLBACK (cm_combo_callback), mix); gtk_box_pack_start (GTK_BOX (hbox), mix->combo, TRUE, TRUE, 0); gtk_widget_show (mix->combo); if (mix->monochrome) gtk_widget_set_sensitive (mix->combo, FALSE); gtk_label_set_mnemonic_widget (GTK_LABEL (label), mix->combo); /*........................................................... */ table = gtk_table_new (3, 4, FALSE); gtk_table_set_row_spacings (GTK_TABLE (table), 6); gtk_table_set_col_spacings (GTK_TABLE (table), 6); gtk_container_add (GTK_CONTAINER (frame), table); gtk_widget_show (table); image = gtk_image_new_from_stock (GIMP_STOCK_CHANNEL_RED, GTK_ICON_SIZE_BUTTON); gtk_table_attach (GTK_TABLE (table), image, 0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0); gtk_widget_show (image); mix->red_data = GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 1, 0, _("_Red:"), 150, -1, red_value, -200.0, 200.0, 1.0, 10.0, 1, TRUE, 0.0, 0.0, NULL, NULL)); g_signal_connect (mix->red_data, "value-changed", G_CALLBACK (cm_red_scale_callback), mix); image = gtk_image_new_from_stock (GIMP_STOCK_CHANNEL_GREEN, GTK_ICON_SIZE_BUTTON); gtk_table_attach (GTK_TABLE (table), image, 0, 1, 1, 2, GTK_FILL, GTK_FILL, 0, 0); gtk_widget_show (image); mix->green_data = GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 1, 1, _("_Green:"), 150, -1, green_value, -200.0, 200.0, 1.0, 10.0, 1, TRUE, 0.0, 0.0, NULL, NULL)); g_signal_connect (mix->green_data, "value-changed", G_CALLBACK (cm_green_scale_callback), mix); image = gtk_image_new_from_stock (GIMP_STOCK_CHANNEL_BLUE, GTK_ICON_SIZE_BUTTON); gtk_table_attach (GTK_TABLE (table), image, 0, 1, 2, 3, GTK_FILL, GTK_FILL, 0, 0); gtk_widget_show (image); mix->blue_data = GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 1, 2, _("_Blue:"), 150, -1, blue_value, -200.0, 200.0, 1.0, 10.0, 1, TRUE, 0.0, 0.0, NULL, NULL)); g_signal_connect (mix->blue_data, "value-changed", G_CALLBACK (cm_blue_scale_callback), mix); vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6); gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0); gtk_widget_show (vbox); /* The monochrome toggle */ mix->monochrome_toggle = gtk_check_button_new_with_mnemonic (_("_Monochrome")); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (mix->monochrome_toggle), mix->monochrome); gtk_box_pack_start (GTK_BOX (vbox), mix->monochrome_toggle, FALSE, FALSE, 0); gtk_widget_show (mix->monochrome_toggle); g_signal_connect (mix->monochrome_toggle, "toggled", G_CALLBACK (cm_monochrome_callback), mix); /* The preserve luminosity toggle */ mix->preserve_luminosity_toggle = gtk_check_button_new_with_mnemonic (_("Preserve _luminosity")); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (mix->preserve_luminosity_toggle), mix->preserve_luminosity); gtk_box_pack_start (GTK_BOX (vbox), mix->preserve_luminosity_toggle, FALSE, FALSE, 0); gtk_widget_show (mix->preserve_luminosity_toggle); g_signal_connect (mix->preserve_luminosity_toggle, "toggled", G_CALLBACK (cm_preserve_luminosity_callback), mix); /*........................................................... */ /* Horizontal box for file i/o */ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); gtk_box_pack_end (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0); gtk_widget_show (hbox); button = gtk_button_new_from_stock (GTK_STOCK_OPEN); gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0); gtk_widget_show (button); g_signal_connect (button, "clicked", G_CALLBACK (cm_load_file_callback), mix); button = gtk_button_new_from_stock (GTK_STOCK_SAVE); gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0); gtk_widget_show (button); g_signal_connect (button, "clicked", G_CALLBACK (cm_save_file_callback), mix); button = gtk_button_new_from_stock (GIMP_STOCK_RESET); gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0); gtk_widget_show (button); g_signal_connect (button, "clicked", G_CALLBACK (cm_reset_callback), mix); gtk_widget_show (dialog); run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK); gtk_widget_destroy (dialog); return run; } static void cm_red_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix) { if (mix->monochrome) { mix->black.red_gain = gtk_adjustment_get_value (adjustment) / 100.0; } else { switch (mix->output_channel) { case CM_RED_CHANNEL: mix->red.red_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_GREEN_CHANNEL: mix->green.red_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_BLUE_CHANNEL: mix->blue.red_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; } } gimp_preview_invalidate (GIMP_PREVIEW (preview)); } static void cm_green_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix) { if (mix->monochrome) { mix->black.green_gain = gtk_adjustment_get_value (adjustment) / 100.0; } else { switch (mix->output_channel) { case CM_RED_CHANNEL: mix->red.green_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_GREEN_CHANNEL: mix->green.green_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_BLUE_CHANNEL: mix->blue.green_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; } } gimp_preview_invalidate (GIMP_PREVIEW (preview)); } static void cm_blue_scale_callback (GtkAdjustment *adjustment, CmParamsType *mix) { if (mix->monochrome) { mix->black.blue_gain = gtk_adjustment_get_value (adjustment) / 100.0; } else { switch (mix->output_channel) { case CM_RED_CHANNEL: mix->red.blue_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_GREEN_CHANNEL: mix->green.blue_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; case CM_BLUE_CHANNEL: mix->blue.blue_gain = gtk_adjustment_get_value (adjustment) / 100.0; break; } } gimp_preview_invalidate (GIMP_PREVIEW (preview)); } static void cm_preview (CmParamsType *mix, GimpPreview *preview) { guchar *src, *s; guchar *dst, *d; gint x, y; gdouble red_norm, green_norm, blue_norm, black_norm; gint width, height, bpp; red_norm = cm_calculate_norm (mix, &mix->red); green_norm = cm_calculate_norm (mix, &mix->green); blue_norm = cm_calculate_norm (mix, &mix->blue); black_norm = cm_calculate_norm (mix, &mix->black); src = s = gimp_zoom_preview_get_source (GIMP_ZOOM_PREVIEW (preview), &width, &height, &bpp); dst = d = g_new (guchar, width * height * bpp); for (y = 0; y < height; y++) { for (x = 0; x < width; x++, s += bpp, d += bpp) { cm_process_pixel (mix, s, d, red_norm, green_norm, blue_norm, black_norm); if (bpp == 4) d[3] = s[3]; } } gimp_preview_draw_buffer (GIMP_PREVIEW (preview), dst, bpp * width); g_free (src); g_free (dst); } static void cm_monochrome_callback (GtkWidget *widget, CmParamsType *mix) { if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) { mix->old_output_channel = mix->output_channel; mix->monochrome = TRUE; gtk_widget_set_sensitive (mix->combo, FALSE); } else { mix->output_channel = mix->old_output_channel; mix->monochrome = FALSE; gtk_widget_set_sensitive (mix->combo, TRUE); } cm_set_adjusters (mix); gimp_preview_invalidate (GIMP_PREVIEW (preview)); } static void cm_preserve_luminosity_callback (GtkWidget *widget, CmParamsType *mix) { if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) mix->preserve_luminosity = TRUE; else mix->preserve_luminosity = FALSE; gimp_preview_invalidate (GIMP_PREVIEW (preview)); } static gchar * cm_settings_filename (void) { return g_build_filename (gimp_directory (), "channel-mixer", "settings", NULL); } static void cm_load_file_callback (GtkWidget *widget, CmParamsType *mix) { static GtkWidget *dialog = NULL; if (! dialog) { GtkWidget *parent = gtk_widget_get_toplevel (widget); gchar *name; dialog = gtk_file_chooser_dialog_new (_("Load Channel Mixer Settings"), GTK_WINDOW (parent), GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_OK, NULL); gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog), GTK_RESPONSE_OK, GTK_RESPONSE_CANCEL, -1); gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK); g_signal_connect (dialog, "response", G_CALLBACK (cm_load_file_response_callback), mix); g_signal_connect (dialog, "delete-event", G_CALLBACK (gtk_true), NULL); name = cm_settings_filename (); gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), name); g_free (name); } gtk_window_present (GTK_WINDOW (dialog)); } static void cm_load_file_response_callback (GtkWidget *dialog, gint response_id, CmParamsType *mix) { FILE *fp; if (response_id == GTK_RESPONSE_OK) { gchar *filename; filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog)); fp = g_fopen (filename, "rb"); if (fp) { gchar buf[3][CM_LINE_SIZE]; buf[0][0] = '\0'; buf[1][0] = '\0'; buf[2][0] = '\0'; fgets (buf[0], CM_LINE_SIZE - 1, fp); fscanf (fp, "%*s %1023s", buf[0]); if (strcmp (buf[0], "RED") == 0) mix->output_channel = CM_RED_CHANNEL; else if (strcmp (buf[0], "GREEN") == 0) mix->output_channel = CM_GREEN_CHANNEL; else if (strcmp (buf[0], "BLUE") == 0) mix->output_channel = CM_BLUE_CHANNEL; fscanf (fp, "%*s %1023s", buf[0]); /* preview flag, preserved for compatibility */ fscanf (fp, "%*s %1023s", buf[0]); if (strcmp (buf[0], "TRUE") == 0) mix->monochrome = TRUE; else mix->monochrome = FALSE; fscanf (fp, "%*s %1023s", buf[0]); if (strcmp (buf[0], "TRUE") == 0) mix->preserve_luminosity = TRUE; else mix->preserve_luminosity = FALSE; fscanf (fp, "%*s %1023s %1023s %1023s", buf[0], buf[1], buf[2]); mix->red.red_gain = g_ascii_strtod (buf[0], NULL); mix->red.green_gain = g_ascii_strtod (buf[1], NULL); mix->red.blue_gain = g_ascii_strtod (buf[2], NULL); fscanf (fp, "%*s %1023s %1023s %1023s", buf[0], buf[1], buf[2]); mix->green.red_gain = g_ascii_strtod (buf[0], NULL); mix->green.green_gain = g_ascii_strtod (buf[1], NULL); mix->green.blue_gain = g_ascii_strtod (buf[2], NULL); fscanf (fp, "%*s %1023s %1023s %1023s", buf[0], buf[1], buf[2]); mix->blue.red_gain = g_ascii_strtod (buf[0], NULL); mix->blue.green_gain = g_ascii_strtod (buf[1], NULL); mix->blue.blue_gain = g_ascii_strtod (buf[2], NULL); fscanf (fp, "%*s %1023s %1023s %1023s", buf[0], buf[1], buf[2]); mix->black.red_gain = g_ascii_strtod (buf[0], NULL); mix->black.green_gain = g_ascii_strtod (buf[1], NULL); mix->black.blue_gain = g_ascii_strtod (buf[2], NULL); fclose (fp); cm_update_ui (mix); } else { g_message (_("Could not open '%s' for reading: %s"), gimp_filename_to_utf8 (filename), g_strerror (errno)); } g_free (filename); } gtk_widget_hide (dialog); } static void cm_save_file_callback (GtkWidget *widget, CmParamsType *mix) { static GtkWidget *dialog = NULL; if (! dialog) { GtkWidget *parent = gtk_widget_get_toplevel (widget); gchar *name; dialog = gtk_file_chooser_dialog_new (_("Save Channel Mixer Settings"), GTK_WINDOW (parent), GTK_FILE_CHOOSER_ACTION_SAVE, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE, GTK_RESPONSE_OK, NULL); gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog), GTK_RESPONSE_OK, GTK_RESPONSE_CANCEL, -1); gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK); gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE); g_signal_connect (dialog, "response", G_CALLBACK (cm_save_file_response_callback), mix); g_signal_connect (dialog, "delete-event", G_CALLBACK (gtk_true), NULL); name = cm_settings_filename (); gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), name); g_free (name); } gtk_window_present (GTK_WINDOW (dialog)); } static void cm_save_file_response_callback (GtkWidget *dialog, gint response_id, CmParamsType *mix) { gchar *filename; FILE *file = NULL; if (response_id != GTK_RESPONSE_OK) { gtk_widget_hide (dialog); return; } filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog)); if (! filename) return; file = g_fopen (filename, "wb"); if (! file) { g_message (_("Could not open '%s' for writing: %s"), gimp_filename_to_utf8 (filename), g_strerror (errno)); g_free (filename); return; } cm_save_file (mix, file); g_message (_("Parameters were saved to '%s'"), gimp_filename_to_utf8 (filename)); gtk_widget_hide (dialog); } static void cm_save_file (CmParamsType *mix, FILE *fp) { const gchar *str = NULL; gchar buf[3][G_ASCII_DTOSTR_BUF_SIZE]; switch (mix->output_channel) { case CM_RED_CHANNEL: str = "RED"; break; case CM_GREEN_CHANNEL: str = "GREEN"; break; case CM_BLUE_CHANNEL: str = "BLUE"; break; default: g_assert_not_reached (); break; } fprintf (fp, "# Channel Mixer Configuration File\n"); fprintf (fp, "CHANNEL: %s\n", str); fprintf (fp, "PREVIEW: %s\n", "TRUE"); /* preserved for compatibility */ fprintf (fp, "MONOCHROME: %s\n", mix->monochrome ? "TRUE" : "FALSE"); fprintf (fp, "PRESERVE_LUMINOSITY: %s\n", mix->preserve_luminosity ? "TRUE" : "FALSE"); fprintf (fp, "RED: %s %s %s\n", g_ascii_formatd (buf[0], sizeof (buf[0]), "%5.3f", mix->red.red_gain), g_ascii_formatd (buf[1], sizeof (buf[1]), "%5.3f", mix->red.green_gain), g_ascii_formatd (buf[2], sizeof (buf[2]), "%5.3f", mix->red.blue_gain)); fprintf (fp, "GREEN: %s %s %s\n", g_ascii_formatd (buf[0], sizeof (buf[0]), "%5.3f", mix->green.red_gain), g_ascii_formatd (buf[1], sizeof (buf[1]), "%5.3f", mix->green.green_gain), g_ascii_formatd (buf[2], sizeof (buf[2]), "%5.3f", mix->green.blue_gain)); fprintf (fp, "BLUE: %s %s %s\n", g_ascii_formatd (buf[0], sizeof (buf[0]), "%5.3f", mix->blue.red_gain), g_ascii_formatd (buf[1], sizeof (buf[1]), "%5.3f", mix->blue.green_gain), g_ascii_formatd (buf[2], sizeof (buf[2]), "%5.3f", mix->blue.blue_gain)); fprintf (fp, "BLACK: %s %s %s\n", g_ascii_formatd (buf[0], sizeof (buf[0]), "%5.3f", mix->black.red_gain), g_ascii_formatd (buf[1], sizeof (buf[1]), "%5.3f", mix->black.green_gain), g_ascii_formatd (buf[2], sizeof (buf[2]), "%5.3f", mix->black.blue_gain)); fclose (fp); } static void cm_reset_callback (GtkWidget *widget, CmParamsType *mix) { cm_set_defaults (mix); cm_update_ui (mix); } static void cm_combo_callback (GtkWidget *widget, CmParamsType *mix) { gint value; if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &value)) { mix->output_channel = value; cm_set_adjusters (mix); } } static void cm_set_adjusters (CmParamsType *mix) { if (mix->monochrome) { gtk_adjustment_set_value (mix->red_data, mix->black.red_gain * 100.0); gtk_adjustment_set_value (mix->green_data, mix->black.green_gain * 100.0); gtk_adjustment_set_value (mix->blue_data, mix->black.blue_gain * 100.0); return; } switch (mix->output_channel) { case CM_RED_CHANNEL: gtk_adjustment_set_value (mix->red_data, mix->red.red_gain * 100.0); gtk_adjustment_set_value (mix->green_data, mix->red.green_gain * 100.0); gtk_adjustment_set_value (mix->blue_data, mix->red.blue_gain * 100.0); break; case CM_GREEN_CHANNEL: gtk_adjustment_set_value (mix->red_data, mix->green.red_gain * 100.0); gtk_adjustment_set_value (mix->green_data, mix->green.green_gain * 100.0); gtk_adjustment_set_value (mix->blue_data, mix->green.blue_gain * 100.0); break; case CM_BLUE_CHANNEL: gtk_adjustment_set_value (mix->red_data, mix->blue.red_gain * 100.0); gtk_adjustment_set_value (mix->green_data, mix->blue.green_gain * 100.0); gtk_adjustment_set_value (mix->blue_data, mix->blue.blue_gain * 100.0); break; } } static void cm_update_ui (CmParamsType *mix) { gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (mix->monochrome_toggle), mix->monochrome); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (mix->preserve_luminosity_toggle), mix->preserve_luminosity); gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (mix->combo), mix->output_channel); cm_set_adjusters (mix); gimp_preview_invalidate (GIMP_PREVIEW (preview)); }