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gimp/plug-ins/script-fu/script-fu-console.c

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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.
*/
#include "config.h"
#include <gdk/gdkkeysyms.h>
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
#include "script-fu-intl.h"
#include "siod-wrapper.h"
#include "script-fu-console.h"
#define TEXT_WIDTH 480
#define TEXT_HEIGHT 400
#define BUFSIZE 256
#define PROC_NAME "plug-in-script-fu-console"
typedef struct
{
GtkWidget *dialog;
GtkTextBuffer *console;
GtkWidget *cc;
GtkWidget *text_view;
GtkWidget *proc_browser;
gint32 input_id;
GList *history;
gint history_len;
gint history_cur;
gint history_max;
} ConsoleInterface;
/*
* Local Functions
*/
static void script_fu_console_interface (void);
static void script_fu_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console);
static void script_fu_browse_callback (GtkWidget *widget,
ConsoleInterface *console);
static void script_fu_browse_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console);
static void script_fu_browse_row_activated (GtkDialog *dialog);
static gboolean script_fu_cc_is_empty (ConsoleInterface *console);
static gboolean script_fu_cc_key_function (GtkWidget *widget,
GdkEventKey *event,
ConsoleInterface *console);
static void script_fu_open_siod_console (void);
static void script_fu_close_siod_console (void);
/*
* Local variables
*/
static ConsoleInterface cint =
{
NULL, /* dialog */
NULL, /* console */
NULL, /* current command */
NULL, /* text view */
NULL, /* proc browser */
-1, /* input id */
NULL,
0,
0,
50
};
/*
* Function definitions
*/
void
script_fu_console_run (const gchar *name,
gint nparams,
const GimpParam *params,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
script_fu_open_siod_console ();
script_fu_console_interface ();
script_fu_close_siod_console ();
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_SUCCESS;
}
static void
script_fu_console_interface (void)
{
ConsoleInterface *console;
GtkWidget *vbox;
GtkWidget *button;
GtkWidget *scrolled_window;
GtkWidget *hbox;
gimp_ui_init ("script-fu", FALSE);
console = &cint;
console->input_id = -1;
console->history = NULL;
console->history_len = 0;
console->history_cur = 0;
console->history_max = 50;
console->dialog = gimp_dialog_new (_("Script-Fu Console"),
"script-fu-console",
NULL, 0,
gimp_standard_help_func, PROC_NAME,
GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
NULL);
g_signal_connect (console->dialog, "response",
G_CALLBACK (script_fu_response),
console);
g_signal_connect (console->dialog, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&console->dialog);
/* The main vbox */
vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (console->dialog)->vbox), vbox,
TRUE, TRUE, 0);
gtk_widget_show (vbox);
/* The output text widget */
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_ALWAYS);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
console->console = gtk_text_buffer_new (NULL);
console->text_view = gtk_text_view_new_with_buffer (console->console);
g_object_unref (console->console);
gtk_text_view_set_editable (GTK_TEXT_VIEW (console->text_view), FALSE);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (console->text_view), 12);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (console->text_view), 12);
gtk_widget_set_size_request (console->text_view, TEXT_WIDTH, TEXT_HEIGHT);
gtk_container_add (GTK_CONTAINER (scrolled_window), console->text_view);
gtk_widget_show (console->text_view);
gtk_text_buffer_create_tag (console->console, "strong",
"weight", PANGO_WEIGHT_BOLD,
"size", 12 * PANGO_SCALE,
NULL);
gtk_text_buffer_create_tag (console->console, "emphasis",
"style", PANGO_STYLE_OBLIQUE,
"size", 10 * PANGO_SCALE,
NULL);
gtk_text_buffer_create_tag (console->console, "weak",
"size", 10 * PANGO_SCALE,
NULL);
{
const gchar *greeting_texts[] =
{
"weak", "\n",
"strong", "Welcome to SIOD, Scheme In One Defun\n",
"weak", "(C) Copyright 1988-1994 Paradigm Associates Inc.\n\n",
"strong", "Script-Fu Console - ",
"emphasis", "Interactive Scheme Development\n",
NULL
};
GtkTextIter cursor;
gint i;
gtk_text_buffer_get_end_iter (console->console, &cursor);
for (i = 0; greeting_texts[i]; i += 2)
{
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
greeting_texts[i + 1], -1,
greeting_texts[i],
NULL);
}
}
/* The current command */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
console->cc = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (hbox), console->cc, TRUE, TRUE, 0);
gtk_widget_grab_focus (console->cc);
gtk_widget_show (console->cc);
g_signal_connect (console->cc, "key-press-event",
G_CALLBACK (script_fu_cc_key_function),
console);
button = gtk_button_new_with_mnemonic (_("_Browse..."));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 2, 0);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (script_fu_browse_callback),
console);
/* Initialize the history */
console->history = g_list_append (console->history, NULL);
console->history_len = 1;
gtk_widget_show (console->dialog);
gtk_main ();
g_source_remove (console->input_id);
if (console->dialog)
gtk_widget_destroy (console->dialog);
}
static void
script_fu_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console)
{
gtk_main_quit ();
}
static void
script_fu_browse_callback (GtkWidget *widget,
ConsoleInterface *console)
{
if (! console->proc_browser)
{
console->proc_browser =
gimp_proc_browser_dialog_new (_("Script-Fu Procedure Browser"),
"script-fu-procedure-browser",
gimp_standard_help_func, PROC_NAME,
GTK_STOCK_APPLY, GTK_RESPONSE_APPLY,
GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (console->proc_browser),
GTK_RESPONSE_APPLY);
g_object_add_weak_pointer (G_OBJECT (console->proc_browser),
(gpointer) &console->proc_browser);
g_signal_connect (console->proc_browser, "response",
G_CALLBACK (script_fu_browse_response),
console);
g_signal_connect (console->proc_browser, "row-activated",
G_CALLBACK (script_fu_browse_row_activated),
console);
}
gtk_window_present (GTK_WINDOW (console->proc_browser));
}
static void
script_fu_browse_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console)
{
GimpProcBrowserDialog *dialog = GIMP_PROC_BROWSER_DIALOG (widget);
gchar *proc_name;
gchar *proc_blurb;
gchar *proc_help;
gchar *proc_author;
gchar *proc_copyright;
gchar *proc_date;
GimpPDBProcType proc_type;
gint n_params;
gint n_return_vals;
GimpParamDef *params;
GimpParamDef *return_vals;
gint i;
GString *text;
if (response_id != GTK_RESPONSE_APPLY)
{
gtk_widget_destroy (widget);
return;
}
proc_name = gimp_proc_browser_dialog_get_selected (dialog);
if (proc_name == NULL)
return;
gimp_procedural_db_proc_info (proc_name,
&proc_blurb,
&proc_help,
&proc_author,
&proc_copyright,
&proc_date,
&proc_type,
&n_params,
&n_return_vals,
&params,
&return_vals);
text = g_string_new ("(");
text = g_string_append (text, proc_name);
for (i = 0; i < n_params; i++)
{
text = g_string_append_c (text, ' ');
text = g_string_append (text, params[i].name);
}
text = g_string_append_c (text, ')');
gtk_entry_set_text (GTK_ENTRY (console->cc), text->str);
g_string_free (text, TRUE);
g_free (proc_name);
g_free (proc_blurb);
g_free (proc_help);
g_free (proc_author);
g_free (proc_copyright);
g_free (proc_date);
gimp_destroy_paramdefs (params, n_params);
gimp_destroy_paramdefs (return_vals, n_return_vals);
}
static void
script_fu_browse_row_activated (GtkDialog *dialog)
{
gtk_dialog_response (dialog, GTK_RESPONSE_APPLY);
}
static gboolean
script_fu_console_idle_scroll_end (ConsoleInterface *console)
{
GtkAdjustment *adj = GTK_TEXT_VIEW (console->text_view)->vadjustment;
gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
return FALSE;
}
static void
script_fu_console_scroll_end (ConsoleInterface *console)
{
/* the text view idle updates so we need to idle scroll too
*/
g_idle_add ((GSourceFunc) script_fu_console_idle_scroll_end, console);
}
void
script_fu_output_to_console (gchar *text)
{
GtkTextIter cursor;
gtk_text_buffer_get_end_iter (cint.console, &cursor);
gtk_text_buffer_insert_with_tags_by_name (cint.console, &cursor,
text, -1,
"weak",
NULL);
script_fu_console_scroll_end (&cint);
}
static gboolean
script_fu_cc_is_empty (ConsoleInterface *console)
{
const gchar *str;
if ((str = gtk_entry_get_text (GTK_ENTRY (console->cc))) == NULL)
return TRUE;
while (*str)
{
if (*str != ' ' && *str != '\t' && *str != '\n')
return FALSE;
str ++;
}
return TRUE;
}
static gboolean
script_fu_cc_key_function (GtkWidget *widget,
GdkEventKey *event,
ConsoleInterface *console)
{
GList *list;
gint direction = 0;
GtkTextIter cursor;
switch (event->keyval)
{
case GDK_Return:
if (script_fu_cc_is_empty (console))
return TRUE;
list = g_list_nth (console->history,
(g_list_length (console->history) - 1));
if (list->data)
g_free (list->data);
list->data = g_strdup (gtk_entry_get_text (GTK_ENTRY (console->cc)));
gtk_text_buffer_get_end_iter (console->console, &cursor);
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
"\n=> ", -1,
"strong",
NULL);
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
gtk_entry_get_text (GTK_ENTRY (console->cc)), -1,
"weak",
NULL);
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
"\n", -1,
"weak",
NULL);
script_fu_console_scroll_end (console);
gtk_entry_set_text (GTK_ENTRY (console->cc), "");
siod_interpret_string ((char *) list->data);
gimp_displays_flush ();
console->history = g_list_append (console->history, NULL);
if (console->history_len == console->history_max)
{
console->history = g_list_remove (console->history,
console->history->data);
if (console->history->data)
g_free (console->history->data);
}
else
console->history_len++;
console->history_cur = g_list_length (console->history) - 1;
return TRUE;
break;
case GDK_KP_Up:
case GDK_Up:
direction = -1;
break;
case GDK_KP_Down:
case GDK_Down:
direction = 1;
break;
case GDK_P:
case GDK_p:
if (event->state & GDK_CONTROL_MASK)
direction = -1;
break;
case GDK_N:
case GDK_n:
if (event->state & GDK_CONTROL_MASK)
direction = 1;
break;
default:
break;
}
if (direction)
{
/* Make sure we keep track of the current one */
if (console->history_cur == g_list_length (console->history) - 1)
{
list = g_list_nth (console->history, console->history_cur);
if (list->data)
g_free (list->data);
list->data = g_strdup (gtk_entry_get_text (GTK_ENTRY (console->cc)));
}
console->history_cur += direction;
if (console->history_cur < 0)
console->history_cur = 0;
if (console->history_cur >= console->history_len)
console->history_cur = console->history_len - 1;
gtk_entry_set_text (GTK_ENTRY (console->cc),
(gchar *) (g_list_nth (console->history,
console->history_cur))->data);
gtk_editable_set_position (GTK_EDITABLE (console->cc), -1);
return TRUE;
}
return FALSE;
}
static void
script_fu_open_siod_console (void)
{
siod_set_console_mode (1);
siod_set_verbose_level (2);
}
static void
script_fu_close_siod_console (void)
{
FILE *siod_output;
siod_output = siod_get_output_file ();
if (siod_output != stdout)
fclose (siod_output);
siod_set_console_mode (0);
}
void
script_fu_eval_run (const gchar *name,
gint nparams,
const GimpParam *params,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpRunMode run_mode;
run_mode = params[0].data.d_int32;
switch (run_mode)
{
case GIMP_RUN_NONINTERACTIVE:
if (siod_interpret_string (params[1].data.d_string) != 0)
status = GIMP_PDB_EXECUTION_ERROR;
break;
case GIMP_RUN_INTERACTIVE:
case GIMP_RUN_WITH_LAST_VALS:
status = GIMP_PDB_CALLING_ERROR;
g_message (_("Script-Fu evaluate mode allows only "
"noninteractive invocation"));
break;
default:
break;
}
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
}
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