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- /*
- * pat plug-in version 1.01
- * Loads/saves version 1 GIMP .pat files, by Tim Newsome <drz@frody.bloke.com>
- * Some bits stolen from the .99.7 source tree.
- * Updated to fix various outstanding problems, brief help -- Nick Lamb
- * njl195@zepler.org.uk, April 2000
- */
-
- #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 <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "libgimp/stdplugins-intl.h"
-
-
- #ifdef G_OS_WIN32
- #include <io.h>
- #endif
-
- #ifndef _O_BINARY
- #define _O_BINARY 0
- #endif
-
- #include "app/pattern_header.h"
-
-
- /* local function prototypes */
-
- 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 gboolean save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID);
-
- static gboolean 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 */
- };
-
- /* private variables */
-
- static gchar description[256] = "GIMP Pattern";
- static gboolean run_flag = FALSE;
-
-
-
- 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, "description", "Short description of the pattern" },
- };
- static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
-
- gimp_install_procedure ("file_pat_load",
- "Loads Gimp's .PAT pattern files",
- "The images in the pattern dialog can be loaded "
- "directly with this plug-in",
- "Tim Newsome",
- "Tim Newsome",
- "1997",
- "<Load>/PAT",
- NULL,
- GIMP_PLUGIN,
- nload_args, nload_return_vals,
- load_args, load_return_vals);
-
- gimp_install_procedure ("file_pat_save",
- "Saves Gimp pattern file (.PAT)",
- "New Gimp patterns can be created by saving them "
- "in the appropriate place with this plug-in.",
- "Tim Newsome",
- "Tim Newsome",
- "1997",
- "<Save>/PAT",
- "RGB, GRAY",
- GIMP_PLUGIN,
- nsave_args, 0,
- save_args, NULL);
-
- gimp_register_magic_load_handler ("file_pat_load",
- "pat",
- "",
- "20,string,GPAT");
- gimp_register_save_handler ("file_pat_save",
- "pat",
- "");
- }
-
- 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_pat_load") == 0)
- {
- INIT_I18N();
- 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_pat_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 ("pat", FALSE);
- export = gimp_export_image (&image_ID, &drawable_ID, "PAT",
- (GIMP_EXPORT_CAN_HANDLE_GRAY |
- GIMP_EXPORT_CAN_HANDLE_RGB));
- 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_pat_save", description);
- if (!save_dialog ())
- status = GIMP_PDB_CANCEL;
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- if (nparams != 6)
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
- else
- {
- strcpy (description, param[5].data.d_string);
- }
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- gimp_get_data ("file_pat_save", description);
- break;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- if (save_image (param[3].data.d_string, image_ID, drawable_ID))
- {
- gimp_set_data ("file_pat_save", description, 256);
- }
- 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)
- {
- gchar *temp;
- gint fd;
- PatternHeader ph;
- guchar *buffer;
- gint32 image_ID;
- gint32 layer_ID;
- GimpDrawable *drawable;
- gint line;
- GimpPixelRgn pixel_rgn;
- GimpImageBaseType base_type;
- GimpImageType image_type;
-
- temp = g_strdup_printf (_("Loading %s:"), filename);
- gimp_progress_init (temp);
- g_free (temp);
-
- fd = open (filename, O_RDONLY | _O_BINARY);
-
- if (fd == -1)
- return -1;
-
- if (read (fd, &ph, sizeof (PatternHeader)) != sizeof (PatternHeader))
- {
- close (fd);
- return -1;
- }
-
- /* rearrange the bytes in each unsigned int */
- ph.header_size = g_ntohl (ph.header_size);
- ph.version = g_ntohl (ph.version);
- ph.width = g_ntohl (ph.width);
- ph.height = g_ntohl (ph.height);
- ph.bytes = g_ntohl (ph.bytes);
- ph.magic_number = g_ntohl (ph.magic_number);
-
- if (ph.magic_number != GPATTERN_MAGIC ||
- ph.version != 1 ||
- ph.header_size <= sizeof (PatternHeader))
- {
- close (fd);
- return -1;
- }
-
- if (lseek (fd, ph.header_size - sizeof (PatternHeader), SEEK_CUR) != ph.header_size)
- {
- close (fd);
- return -1;
- }
-
- /* Now there's just raw data left. */
-
- /*
- * Create a new image of the proper size and associate the filename with it.
- */
-
- switch (ph.bytes)
- {
- case 1:
- base_type = GIMP_GRAY;
- image_type = GIMP_GRAY_IMAGE;
- break;
- case 2:
- base_type = GIMP_GRAY;
- image_type = GIMP_GRAYA_IMAGE;
- g_message ("Your pattern has an aplha channel,\n"
- "please flatten and save it again to fix this.\n"
- "Loading it anyway...");
- break;
- case 3:
- base_type = GIMP_RGB;
- image_type = GIMP_RGB_IMAGE;
- break;
- case 4:
- base_type = GIMP_RGB;
- image_type = GIMP_RGBA_IMAGE;
- g_message ("Your pattern has an aplha channel,\n"
- "please flatten and save it again to fix this.\n"
- "Loading it anyway...");
- break;
- default:
- g_message ("Unsupported pattern depth: %d\nGIMP Patterns must be GRAY or RGB\n", ph.bytes);
- return -1;
- }
-
- image_ID = gimp_image_new (ph.width, ph.height, base_type);
- gimp_image_set_filename (image_ID, filename);
-
- layer_ID = gimp_layer_new (image_ID, _("Background"), ph.width, ph.height,
- image_type, 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);
-
- buffer = g_malloc (ph.width * ph.bytes);
-
- for (line = 0; line < ph.height; line++)
- {
- if (read (fd, buffer, ph.width * ph.bytes) != ph.width * ph.bytes)
- {
- close (fd);
- g_free (buffer);
- return -1;
- }
-
- gimp_pixel_rgn_set_row (&pixel_rgn, buffer, 0, line, ph.width);
-
- gimp_progress_update ((gdouble) line / (gdouble) ph.height);
- }
-
- gimp_drawable_flush (drawable);
-
- return image_ID;
- }
-
- static gboolean
- save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- gint fd;
- PatternHeader ph;
- guchar *buffer;
- GimpDrawable *drawable;
- gint line;
- GimpPixelRgn pixel_rgn;
- gchar *temp;
-
- temp = g_strdup_printf (_("Saving %s:"), filename);
- gimp_progress_init (temp);
- g_free (temp);
-
- drawable = gimp_drawable_get (drawable_ID);
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
- drawable->height, FALSE, FALSE);
-
- fd = open (filename, O_CREAT | O_TRUNC | O_WRONLY | _O_BINARY, 0644);
-
- if (fd == -1)
- return FALSE;
-
- ph.header_size = g_htonl (sizeof (PatternHeader) + strlen (description) + 1);
- ph.version = g_htonl (1);
- ph.width = g_htonl (drawable->width);
- ph.height = g_htonl (drawable->height);
- ph.bytes = g_htonl (drawable->bpp);
- ph.magic_number = g_htonl (GPATTERN_MAGIC);
-
- if (write (fd, &ph, sizeof (PatternHeader)) != sizeof (PatternHeader))
- {
- close (fd);
- return FALSE;
- }
-
- if (write (fd, description, strlen (description) + 1) != strlen (description) + 1)
- {
- close (fd);
- return FALSE;
- }
-
- buffer = g_malloc (drawable->width * drawable->bpp);
- if (buffer == NULL)
- {
- close (fd);
- return FALSE;
- }
-
- for (line = 0; line < drawable->height; line++)
- {
- gimp_pixel_rgn_get_row (&pixel_rgn, buffer, 0, line, drawable->width);
-
- if (write (fd, buffer, drawable->width * drawable->bpp) !=
- drawable->width * drawable->bpp)
- {
- close (fd);
- return FALSE;
- }
-
- gimp_progress_update ((gdouble) line / (gdouble) drawable->height);
- }
-
- g_free (buffer);
- close (fd);
-
- return TRUE;
- }
-
- static gboolean
- save_dialog (void)
- {
- GtkWidget *dlg;
- GtkWidget *table;
- GtkWidget *entry;
-
- dlg = gimp_dialog_new (_("Save as Pattern"), "pat",
- gimp_standard_help_func, "filters/pat.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);
- gtk_entry_set_text (GTK_ENTRY (entry), description);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
- _("Description:"), 1.0, 0.5,
- entry, 1, FALSE);
- gtk_signal_connect (GTK_OBJECT (entry), "changed",
- GTK_SIGNAL_FUNC (entry_callback),
- description);
- gtk_widget_show (entry);
-
- gtk_widget_show (dlg);
-
- gtk_main ();
- gdk_flush ();
-
- return run_flag;
- }
-
- static void
- ok_callback (GtkWidget *widget,
- gpointer data)
- {
- run_flag = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-
- static void
- entry_callback (GtkWidget *widget,
- gpointer data)
- {
- if (data == description)
- strncpy (description, gtk_entry_get_text (GTK_ENTRY (widget)), 256);
- }
-