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- /* The GIMP -- an 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 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.
- */
-
- /* saves and loads gimp icon files (For toolbox, etc)...
- */
-
- #include "config.h"
-
- #include <setjmp.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include <ctype.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <math.h>
-
- #include <gtk/gtk.h>
-
- #include <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "libgimp/stdplugins-intl.h"
-
-
- typedef struct
- {
- gchar icon_name[256];
- } GIconSaveVals;
-
- typedef struct
- {
- gint run;
- } GIconSaveInterface;
-
- /* Declare some local functions.
- */
- static void query (void);
- static void run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals);
- static gint32 load_image (gchar *filename);
- static gint save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID);
-
- static gint save_dialog (void);
-
- static void ok_callback (GtkWidget *widget,
- gpointer data);
- static void entry_callback (GtkWidget *widget,
- gpointer data);
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- static GIconSaveVals givals =
- {
- "gicon" /* icon_name */
- };
-
- static GIconSaveInterface giint =
- {
- FALSE /* run */
- };
-
- MAIN ()
-
- static void
- query (void)
- {
- static GimpParamDef load_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_STRING, "filename", "The name of the file to load" },
- { GIMP_PDB_STRING, "raw_filename", "The name of the file to load" }
- };
- static GimpParamDef load_return_vals[] =
- {
- { GIMP_PDB_IMAGE, "image", "Output image" },
- };
- static gint nload_args = sizeof (load_args) / sizeof (load_args[0]);
- static gint nload_return_vals = (sizeof (load_return_vals) /
- sizeof (load_return_vals[0]));
-
- static GimpParamDef save_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_IMAGE, "image", "Input image" },
- { GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
- { GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
- { GIMP_PDB_STRING, "raw_filename", "The name of the file to save the image in" },
- { GIMP_PDB_STRING, "icon_name", "The name of the icon" }
- };
- static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
-
- gimp_install_procedure ("file_gicon_load",
- "loads files of the .ico file format",
- "FIXME: write help",
- "Spencer Kimball",
- "Spencer Kimball",
- "1997",
- "<Load>/GIcon",
- NULL,
- GIMP_PLUGIN,
- nload_args, nload_return_vals,
- load_args, load_return_vals);
-
- gimp_install_procedure ("file_gicon_save",
- "saves files in the .ico file format",
- "FIXME: write help",
- "Spencer Kimball",
- "Spencer Kimball",
- "1997",
- "<Save>/GIcon",
- "GRAY*",
- GIMP_PLUGIN,
- nsave_args, 0,
- save_args, NULL);
-
- gimp_register_magic_load_handler ("file_gicon_load",
- "ico",
- "",
- "0,string,"
- "/*\\040\\040GIMP\\040icon\\040image");
- gimp_register_save_handler ("file_gicon_save",
- "ico",
- "");
- }
-
- static void
- run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals)
- {
- static GimpParam values[2];
- GimpRunModeType run_mode;
- GimpPDBStatusType status = GIMP_PDB_SUCCESS;
- gint32 image_ID;
- gint32 drawable_ID;
- GimpExportReturnType export = GIMP_EXPORT_CANCEL;
-
- run_mode = param[0].data.d_int32;
-
- *nreturn_vals = 1;
- *return_vals = values;
- values[0].type = GIMP_PDB_STATUS;
- values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
-
- if (strcmp (name, "file_gicon_load") == 0)
- {
- image_ID = load_image (param[1].data.d_string);
-
- if (image_ID != -1)
- {
- *nreturn_vals = 2;
- values[1].type = GIMP_PDB_IMAGE;
- values[1].data.d_image = image_ID;
- }
- else
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
- }
- else if (strcmp (name, "file_gicon_save") == 0)
- {
- image_ID = param[1].data.d_int32;
- drawable_ID = param[2].data.d_int32;
-
- /* eventually export the image */
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- case GIMP_RUN_WITH_LAST_VALS:
- INIT_I18N_UI();
- gimp_ui_init ("gicon", FALSE);
- export = gimp_export_image (&image_ID, &drawable_ID, "GIcon",
- (GIMP_EXPORT_CAN_HANDLE_GRAY |
- GIMP_EXPORT_CAN_HANDLE_ALPHA ));
- if (export == GIMP_EXPORT_CANCEL)
- {
- values[0].data.d_status = GIMP_PDB_CANCEL;
- return;
- }
- break;
- default:
- INIT_I18N();
- break;
- }
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- /* Possibly retrieve data */
- gimp_get_data ("file_gicon_save", &givals);
-
- /* First acquire information with a dialog */
- if (! save_dialog ())
- status = GIMP_PDB_CANCEL;
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- /* Make sure all the arguments are there! */
- if (nparams != 6)
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
- else
- {
- strncpy (givals.icon_name, param[5].data.d_string, 256);
- }
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- /* Possibly retrieve data */
- gimp_get_data ("file_gicon_save", &givals);
- break;
-
- default:
- break;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- if (save_image (param[3].data.d_string, image_ID, drawable_ID))
- {
- /* Store persistent data */
- gimp_set_data ("file_gicon_save", &givals, sizeof (GIconSaveVals));
- }
- else
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
- }
-
- if (export == GIMP_EXPORT_EXPORT)
- gimp_image_delete (image_ID);
- }
- else
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
-
- values[0].data.d_status = status;
- }
-
- static gint32
- load_image (gchar *filename)
- {
- GimpDrawable *drawable;
- GimpPixelRgn pixel_rgn;
- FILE * fp;
- gint32 image_ID;
- gint32 layer_ID;
- char name_buf[256];
- char * data_buf;
- unsigned char *dest;
- int val;
- int width, height;
- int i, j;
-
- /* Open the requested file */
- if (! (fp = fopen (filename, "r")))
- {
- fprintf (stderr, "gicon: can't open \"%s\"\n", filename);
- return -1;
- }
-
- /* Check the identifier string */
- fscanf (fp, "/* %s icon image format -- S. Kimball, P. Mattis */\n", name_buf);
- if (strcmp ("GIMP", name_buf))
- {
- fprintf (stderr, "Not a GIcon file: %s!\n", filename);
- return -1;
- }
-
- /* Parse the icon name */
- fscanf (fp, "/* Image name: %s */\n", name_buf);
-
- /* Get the width and height */
- fscanf (fp, "#define %s %d\n", name_buf, &width);
- fscanf (fp, "#define %s %d\n", name_buf, &height);
- fscanf (fp, "static char *%s [] = \n{\n", name_buf);
-
- /* Get a new image structure */
- image_ID = gimp_image_new (width, height, GIMP_GRAY);
- gimp_image_set_filename (image_ID, filename);
-
- layer_ID = gimp_layer_new (image_ID, "Background", width, height,
- GIMP_GRAYA_IMAGE, 100, GIMP_NORMAL_MODE);
- gimp_image_add_layer (image_ID, layer_ID, 0);
-
- drawable = gimp_drawable_get (layer_ID);
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
- drawable->height, TRUE, FALSE);
-
- data_buf = g_new (char, width);
- dest = g_new (guchar, width * 2);
-
- for (i = 0; i < height; i++)
- {
- fscanf (fp, " \"%s\",\n", data_buf);
- for (j = 0; j < width; j++)
- {
- val = data_buf[j];
- if (val == '.')
- {
- dest[j*2+0] = 0;
- dest[j*2+1] = 0; /* set alpha channel to transparent */
- }
- else
- {
- dest[j*2+0] = (255 * (val - 'a')) / 7;
- dest[j*2+1] = 255; /* set alpha channel to opaque */
- }
- }
-
- gimp_pixel_rgn_set_row (&pixel_rgn, dest, 0, i, width);
- }
-
- /* Clean up */
- fclose (fp);
-
- gimp_drawable_flush(drawable);
-
- g_free (data_buf);
- g_free (dest);
-
- return image_ID;
- }
-
- static gint
- save_image (char *filename,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- GimpDrawable *drawable;
- GimpPixelRgn pixel_rgn;
- FILE * fp;
- int i, j;
- int w, h;
- int has_alpha;
- int val;
- char ch;
- unsigned char *src_buf, *src;
-
- drawable = gimp_drawable_get (drawable_ID);
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
- drawable->height, FALSE, FALSE);
-
- w = drawable->width;
- h = drawable->height;
- has_alpha = gimp_drawable_has_alpha (drawable_ID);
-
- /* open the file for writing */
- if ((fp = fopen (filename, "w")))
- {
- fprintf (fp, "/* GIMP icon image format -- S. Kimball, P. Mattis */\n");
- fprintf (fp, "/* Image name: %s */\n", givals.icon_name);
- fprintf (fp, "\n\n");
- fprintf (fp, "#define %s_width %d\n", givals.icon_name, w);
- fprintf (fp, "#define %s_height %d\n", givals.icon_name, h);
- fprintf (fp, "static char *%s_bits [] = \n{\n", givals.icon_name);
-
- /* write the brush data to the file */
- src_buf = g_new (guchar, w * drawable->bpp);
- for (i = 0; i < h; i++)
- {
- gimp_pixel_rgn_get_row (&pixel_rgn, src_buf, 0, i, w);
- src = src_buf;
-
- fprintf (fp, " \"");
- for (j = 0; j < w; j++)
- {
- if (has_alpha && !src[1])
- {
- ch = '.';
- }
- else
- {
- val = (int) ((double) src[0] * 7.0 / 255.0 + 0.5);
- ch = 'a' + val;
- }
- fputc (ch, fp);
-
- src += drawable->bpp;
- }
-
- fprintf (fp, (i == (h-1)) ? "\"\n};\n" : "\",\n");
- }
-
- /* Clean up */
- g_free (src_buf);
-
- fclose (fp);
- }
-
- return TRUE;
- }
-
- static gint
- save_dialog (void)
- {
- GtkWidget *dlg;
- GtkWidget *table;
- GtkWidget *entry;
-
- dlg = gimp_dialog_new (_("Save as GIcon"), "gicon",
- gimp_standard_help_func, "filters/gicon.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), ok_callback,
- NULL, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
- GTK_SIGNAL_FUNC (gtk_main_quit),
- NULL);
-
- /* The main table */
- table = gtk_table_new (1, 2, FALSE);
- gtk_table_set_row_spacings (GTK_TABLE (table), 2);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_container_set_border_width (GTK_CONTAINER (table), 6);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), table, TRUE, TRUE, 0);
- gtk_widget_show (table);
-
-
- entry = gtk_entry_new ();
- gtk_widget_set_usize (entry, 200, 0);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
- _("Icon Name:"), 1.0, 0.5,
- entry, 1, FALSE);
- gtk_entry_set_text (GTK_ENTRY (entry), givals.icon_name);
- gtk_signal_connect (GTK_OBJECT (entry), "changed",
- GTK_SIGNAL_FUNC (entry_callback),
- givals.icon_name);
- gtk_widget_show (entry);
-
- gtk_widget_show (dlg);
-
- gtk_main ();
- gdk_flush ();
-
- return giint.run;
- }
-
- static void
- ok_callback (GtkWidget *widget,
- gpointer data)
- {
- giint.run = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-
- static void
- entry_callback (GtkWidget *widget,
- gpointer data)
- {
- strncpy (givals.icon_name, gtk_entry_get_text (GTK_ENTRY (widget)), 256);
- }
-