mirror of https://github.com/GNOME/gimp.git
369 lines
10 KiB
C
369 lines
10 KiB
C
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/* Plug-in to save .gpb (GIMP Pixmap Brush) files.
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* This is probably only of temporary interest, the format for
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* pixmap brushes is likely to change.
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*
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* Copyright (C) 1999 Tor Lillqvist
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include <libgimp/gimp.h>
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#include "app/brush_header.h"
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#include "app/pattern_header.h"
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/* Declare local data types
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*/
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typedef struct {
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guint spacing;
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guchar *description;
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} t_info;
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t_info info = { /* Initialize to this, change if non-interactive later */
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10,
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"GIMP Pixmap Brush"
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};
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static int run_flag = 0;
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/* Declare some local functions.
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*/
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static void query (void);
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static void run (char *name,
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int nparams,
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GParam *param,
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int *nreturn_vals,
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GParam **return_vals);
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GPlugInInfo PLUG_IN_INFO =
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{
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NULL, /* init_proc */
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NULL, /* quit_proc */
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query, /* query_proc */
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run, /* run_proc */
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};
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MAIN ()
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static void
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query ()
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{
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static GParamDef save_args[] =
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{
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{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
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{ PARAM_IMAGE, "image", "Input image" },
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{ PARAM_DRAWABLE, "drawable", "Drawable to save" },
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{ PARAM_STRING, "filename", "The name of the file to save the image in" },
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{ PARAM_STRING, "raw_filename", "The name of the file to save the image in" },
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{ PARAM_INT32, "spacing", "Spacing of the brush" },
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{ PARAM_STRING, "description", "Short description of the brush" },
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};
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static int nsave_args = sizeof (save_args) / sizeof (save_args[0]);
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gimp_install_procedure ("file_gpb_save",
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"saves a layer in the GIMP pixmap brush format",
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"The layer must have an alpha channel",
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"Tor Lillqvist",
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"Tor Lillqvist",
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"1999",
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"<Save>/GPB",
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"RGBA",
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PROC_PLUG_IN,
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nsave_args, 0,
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save_args, NULL);
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gimp_register_save_handler ("file_gpb_save", "gpb", "");
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}
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static void
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entry_callback(GtkWidget *widget,
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gpointer data)
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{
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if (data == &info.description)
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info.description = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
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else if (data == &info.spacing)
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info.spacing = atoi (gtk_entry_get_text (GTK_ENTRY (widget)));
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}
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static void
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close_callback (GtkWidget *widget,
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gpointer data)
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{
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gtk_main_quit();
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}
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static void
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ok_callback (GtkWidget *widget,
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gpointer data)
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{
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run_flag = 1;
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gtk_widget_destroy (GTK_WIDGET (data));
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}
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static gint
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save_dialog ()
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{
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GtkWidget *dlg;
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GtkWidget *button;
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GtkWidget *label;
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GtkWidget *entry;
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GtkWidget *table;
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gchar **argv;
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gint argc;
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gchar buffer[12];
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argc = 1;
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argv = g_new(gchar *, 1);
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argv[0] = g_strdup("gpb_save");
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gtk_init (&argc, &argv);
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gtk_rc_parse (gimp_gtkrc ());
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dlg = gtk_dialog_new ();
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gtk_window_set_title (GTK_WINDOW(dlg), "Save As Pixmap Brush");
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gtk_window_position (GTK_WINDOW(dlg), GTK_WIN_POS_MOUSE);
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gtk_signal_connect (GTK_OBJECT(dlg), "destroy",
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(GtkSignalFunc) close_callback, NULL);
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/* Action area */
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button = gtk_button_new_with_label ("OK");
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GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
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gtk_signal_connect (GTK_OBJECT(button), "clicked",
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(GtkSignalFunc) ok_callback, dlg);
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gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dlg)->action_area), button, TRUE, TRUE, 0);
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gtk_widget_grab_default (button);
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gtk_widget_show (button);
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button = gtk_button_new_with_label ("Cancel");
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GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
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gtk_signal_connect_object (GTK_OBJECT(button), "clicked",
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(GtkSignalFunc) gtk_widget_destroy,
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GTK_OBJECT (dlg));
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gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dlg)->action_area), button, TRUE, TRUE, 0);
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gtk_widget_show(button);
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/* The main table */
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table = gtk_table_new (2, 2, FALSE);
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gtk_container_border_width (GTK_CONTAINER (table), 10);
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gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), table, TRUE, TRUE, 0);
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gtk_widget_show (table);
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gtk_table_set_row_spacings (GTK_TABLE (table), 10);
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gtk_table_set_col_spacings (GTK_TABLE (table), 10);
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label = gtk_label_new ("Spacing:");
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gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
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gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1, GTK_FILL, GTK_FILL, 0,
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0);
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gtk_widget_show (label);
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entry = gtk_entry_new ();
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gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 0, 1, GTK_EXPAND | GTK_FILL,
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GTK_EXPAND | GTK_FILL, 0, 0);
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gtk_widget_set_usize (entry, 200, 0);
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sprintf (buffer, "%i", info.spacing);
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gtk_entry_set_text (GTK_ENTRY (entry), buffer);
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gtk_signal_connect (GTK_OBJECT (entry), "changed",
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(GtkSignalFunc) entry_callback, &info.spacing);
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gtk_widget_show (entry);
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label = gtk_label_new ("Description:");
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gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
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gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2, GTK_FILL, GTK_FILL, 0,
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0);
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gtk_widget_show (label);
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entry = gtk_entry_new ();
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gtk_table_attach (GTK_TABLE (table), entry, 1, 2, 1, 2, GTK_EXPAND | GTK_FILL,
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GTK_EXPAND | GTK_FILL, 0, 0);
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gtk_widget_set_usize (entry, 200, 0);
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gtk_entry_set_text (GTK_ENTRY (entry), info.description);
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gtk_signal_connect (GTK_OBJECT (entry), "changed",
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(GtkSignalFunc) entry_callback, &info.description);
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gtk_widget_show (entry);
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gtk_widget_show (dlg);
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gtk_main ();
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gdk_flush ();
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return run_flag;
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}
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static gboolean
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try_fwrite (gpointer buffer,
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guint size,
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guint nitems,
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FILE *file)
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{
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if (fwrite (buffer, size, nitems, file) < nitems)
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{
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g_message ("GPB: write error");
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fclose (file);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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save_image (char *filename,
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gint32 image_ID,
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gint32 drawable_ID)
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{
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BrushHeader brushheader;
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PatternHeader patternheader;
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GPixelRgn pixel_rgn;
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GDrawable *drawable;
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FILE *file;
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gint y, x;
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guchar *buffer;
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gchar *temp;
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g_assert (gimp_drawable_has_alpha (drawable_ID));
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drawable = gimp_drawable_get (drawable_ID);
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gimp_tile_cache_size (gimp_tile_height () * drawable->width * 4);
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gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width, drawable->height, FALSE, FALSE);
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temp = g_strdup_printf ("Saving %s:", filename);
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gimp_progress_init (temp);
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g_free (temp);
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file = fopen (filename, "wb");
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if (file == NULL)
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{
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g_message ("GPB: can't open \"%s\"", filename);
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return FALSE;
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}
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brushheader.header_size = g_htonl (sizeof (brushheader) + strlen (info.description));
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brushheader.version = g_htonl (2);
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brushheader.width = g_htonl (drawable->width);
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brushheader.height = g_htonl (drawable->height);
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brushheader.bytes = g_htonl (1);
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brushheader.magic_number = g_htonl (GBRUSH_MAGIC);
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brushheader.spacing = g_htonl (info.spacing);
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if (!try_fwrite (&brushheader, sizeof (brushheader), 1, file))
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return FALSE;
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if (!try_fwrite (info.description, strlen (info.description), 1, file))
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return FALSE;
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buffer = g_malloc (drawable->width * drawable->bpp);
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for (y = 0; y < drawable->height; y++)
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{
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gimp_pixel_rgn_get_row (&pixel_rgn, buffer, 0, y, drawable->width);
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for (x = 0; x < drawable->width; x++)
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if (!try_fwrite (buffer + x*4 + 3, 1, 1, file))
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return FALSE;
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gimp_progress_update (0.5 * y / drawable->height);
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}
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g_free (buffer);
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gimp_progress_update (0.5);
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patternheader.header_size = g_htonl (sizeof (patternheader) + strlen ("foo"));
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patternheader.version = g_htonl (1);
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patternheader.width = g_htonl (drawable->width);
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patternheader.height = g_htonl (drawable->height);
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patternheader.bytes = g_htonl (3);
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patternheader.magic_number = g_htonl (GPATTERN_MAGIC);
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if (!try_fwrite (&patternheader, sizeof (patternheader), 1, file))
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return FALSE;
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if (!try_fwrite ("foo", strlen ("foo"), 1, file))
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return FALSE;
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buffer = g_malloc (drawable->width * drawable->bpp);
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for (y = 0; y < drawable->height; y++)
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{
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gimp_pixel_rgn_get_row (&pixel_rgn, buffer, 0, y, drawable->width);
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for (x = 0; x < drawable->width; x++)
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if (!try_fwrite (buffer + x*4, 3, 1, file))
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return FALSE;
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gimp_progress_update (0.5 + 0.5 * y / drawable->height);
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}
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g_free (buffer);
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gimp_progress_update (1.0);
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fclose (file);
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return TRUE;
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}
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static void
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run (char *name,
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int nparams,
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GParam *param,
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int *nreturn_vals,
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GParam **return_vals)
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{
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static GParam values[1];
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GRunModeType run_mode;
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GStatusType status = STATUS_SUCCESS;
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gint32 image_ID;
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run_mode = param[0].data.d_int32;
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*return_vals = values;
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*nreturn_vals = 1;
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values[0].type = PARAM_STATUS;
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values[0].data.d_status = STATUS_CALLING_ERROR;
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if (strcmp (name, "file_gpb_save") == 0)
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{
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switch (run_mode) {
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case RUN_INTERACTIVE:
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/* Possibly retrieve data */
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gimp_get_data ("file_gpb_save", &info);
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if (!save_dialog ())
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return;
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break;
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case RUN_NONINTERACTIVE: /* FIXME - need a real RUN_NONINTERACTIVE */
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if (nparams != 7)
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status = STATUS_CALLING_ERROR;
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if (status == STATUS_SUCCESS)
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{
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info.spacing = param[5].data.d_int32;
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info.description = g_strdup (param[6].data.d_string);
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}
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break;
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case RUN_WITH_LAST_VALS:
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gimp_get_data ("file_gpb_save", &info);
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break;
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}
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if (save_image (param[3].data.d_string, param[1].data.d_int32, param[2].data.d_int32))
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status = STATUS_SUCCESS;
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else
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status = STATUS_EXECUTION_ERROR;
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}
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values[0].data.d_status = status;
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}
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