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

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/* GIMP - The GNU 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 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <glib/gstdio.h>
#include "libgimp/gimp.h"
#include "libgimp/gimpui.h"
#include <gdk/gdkkeysyms.h>
#include "scheme-wrapper.h"
#include "script-fu-console.h"
#include "script-fu-intl.h"
#define TEXT_WIDTH 480
#define TEXT_HEIGHT 400
#define PROC_NAME "plug-in-script-fu-console"
typedef struct
{
GtkWidget *dialog;
GtkTextBuffer *console;
GtkWidget *cc;
GtkWidget *text_view;
GtkWidget *proc_browser;
GtkWidget *save_dialog;
GList *history;
gint history_len;
gint history_cur;
gint history_max;
} ConsoleInterface;
enum
{
RESPONSE_CLEAR,
RESPONSE_SAVE
};
/*
* Local Functions
*/
static void script_fu_console_interface (void);
static void script_fu_console_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console);
static void script_fu_console_save_dialog (ConsoleInterface *console);
static void script_fu_console_save_response (GtkWidget *dialog,
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_output_to_console (TsOutputType type,
const gchar *text,
gint len,
gpointer user_data);
/*
* 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];
ts_set_print_flag (1);
script_fu_console_interface ();
*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 = { 0, };
GtkWidget *vbox;
GtkWidget *button;
GtkWidget *scrolled_window;
GtkWidget *hbox;
gimp_ui_init ("script-fu", FALSE);
console.history_max = 50;
console.dialog = gimp_dialog_new (_("Script-Fu Console"),
"gimp-script-fu-console",
NULL, 0,
gimp_standard_help_func, PROC_NAME,
GTK_STOCK_SAVE, RESPONSE_SAVE,
GTK_STOCK_CLEAR, RESPONSE_CLEAR,
GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (console.dialog),
GTK_RESPONSE_CLOSE,
RESPONSE_CLEAR,
RESPONSE_SAVE,
-1);
g_object_add_weak_pointer (G_OBJECT (console.dialog),
(gpointer) &console.dialog);
g_signal_connect (console.dialog, "response",
G_CALLBACK (script_fu_console_response),
&console);
/* The main vbox */
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (console.dialog))),
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_wrap_mode (GTK_TEXT_VIEW (console.text_view),
GTK_WRAP_WORD);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (console.text_view), 6);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (console.text_view), 6);
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,
"scale", PANGO_SCALE_LARGE,
NULL);
gtk_text_buffer_create_tag (console.console, "emphasis",
"style", PANGO_STYLE_OBLIQUE,
NULL);
{
const gchar * const greetings[] =
{
"strong", N_("Welcome to TinyScheme"),
NULL, "\n",
NULL, "Copyright (c) Dimitrios Souflis",
NULL, "\n",
"strong", N_("Script-Fu Console"),
NULL, " - ",
"emphasis", N_("Interactive Scheme Development"),
NULL, "\n"
};
GtkTextIter cursor;
gint i;
gtk_text_buffer_get_end_iter (console.console, &cursor);
for (i = 0; i < G_N_ELEMENTS (greetings); i += 2)
{
if (greetings[i])
gtk_text_buffer_insert_with_tags_by_name (console.console, &cursor,
gettext (greetings[i + 1]),
-1, greetings[i],
NULL);
else
gtk_text_buffer_insert (console.console, &cursor,
gettext (greetings[i + 1]), -1);
}
}
/* The current command */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 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_get_child (GTK_BIN (button))), 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 ();
if (console.save_dialog)
gtk_widget_destroy (console.save_dialog);
if (console.dialog)
gtk_widget_destroy (console.dialog);
}
static void
script_fu_console_response (GtkWidget *widget,
gint response_id,
ConsoleInterface *console)
{
GtkTextIter start, end;
switch (response_id)
{
case RESPONSE_CLEAR:
gtk_text_buffer_get_start_iter (console->console, &start);
gtk_text_buffer_get_end_iter (console->console, &end);
gtk_text_buffer_delete (console->console, &start, &end);
break;
case RESPONSE_SAVE:
script_fu_console_save_dialog (console);
break;
default:
gtk_main_quit ();
break;
}
}
static void
script_fu_console_save_dialog (ConsoleInterface *console)
{
if (! console->save_dialog)
{
console->save_dialog =
gtk_file_chooser_dialog_new (_("Save Script-Fu Console Output"),
GTK_WINDOW (console->dialog),
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 (console->save_dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_dialog_set_default_response (GTK_DIALOG (console->save_dialog),
GTK_RESPONSE_OK);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (console->save_dialog),
TRUE);
g_object_add_weak_pointer (G_OBJECT (console->save_dialog),
(gpointer) &console->save_dialog);
g_signal_connect (console->save_dialog, "response",
G_CALLBACK (script_fu_console_save_response),
console);
}
gtk_window_present (GTK_WINDOW (console->save_dialog));
}
static void
script_fu_console_save_response (GtkWidget *dialog,
gint response_id,
ConsoleInterface *console)
{
GtkTextIter start, end;
if (response_id == GTK_RESPONSE_OK)
{
gchar *filename;
gchar *str;
FILE *fh;
filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
fh = g_fopen (filename, "w");
if (! fh)
{
g_message (_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename),
g_strerror (errno));
g_free (filename);
return;
}
gtk_text_buffer_get_start_iter (console->console, &start);
gtk_text_buffer_get_end_iter (console->console, &end);
str = gtk_text_buffer_get_text (console->console, &start, &end, FALSE);
fputs (str, fh);
fclose (fh);
g_free (str);
}
gtk_widget_hide (dialog);
}
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);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (console->proc_browser),
GTK_RESPONSE_CLOSE,
GTK_RESPONSE_APPLY,
-1);
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_window_set_focus (GTK_WINDOW (console->dialog), console->cc);
gtk_entry_set_text (GTK_ENTRY (console->cc), text->str);
gtk_editable_set_position (GTK_EDITABLE (console->cc),
g_utf8_pointer_to_offset (text->str,
text->str +
strlen (proc_name) + 2));
g_string_free (text, TRUE);
gtk_window_present (GTK_WINDOW (console->dialog));
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 (GtkWidget *view)
{
GtkWidget *parent = gtk_widget_get_parent (view);
if (parent)
{
GtkAdjustment *adj;
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (parent));
gtk_adjustment_set_value (adj,
gtk_adjustment_get_upper (adj) -
gtk_adjustment_get_page_size (adj));
}
g_object_unref (view);
return FALSE;
}
static void
script_fu_console_scroll_end (GtkWidget *view)
{
/* the text view idle updates, so we need to idle scroll too
*/
g_object_ref (view);
g_idle_add ((GSourceFunc) script_fu_console_idle_scroll_end, view);
}
static void
script_fu_output_to_console (TsOutputType type,
const gchar *text,
gint len,
gpointer user_data)
{
ConsoleInterface *console = user_data;
if (console && console->text_view)
{
GtkTextBuffer *buffer;
GtkTextIter cursor;
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (console->text_view));
gtk_text_buffer_get_end_iter (buffer, &cursor);
if (type == TS_OUTPUT_NORMAL)
{
gtk_text_buffer_insert (buffer, &cursor, text, len);
}
else
{
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
text, len, "emphasis",
NULL);
}
script_fu_console_scroll_end (console->text_view);
}
}
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;
GString *output;
switch (event->keyval)
{
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
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 (console->console, &cursor, "\n", 1);
gtk_text_buffer_insert_with_tags_by_name (console->console, &cursor,
"> ", 2,
"strong",
NULL);
gtk_text_buffer_insert (console->console, &cursor,
gtk_entry_get_text (GTK_ENTRY (console->cc)), -1);
gtk_text_buffer_insert (console->console, &cursor, "\n", 1);
script_fu_console_scroll_end (console->text_view);
gtk_entry_set_text (GTK_ENTRY (console->cc), "");
output = g_string_new (NULL);
ts_register_output_func (ts_gstring_output_func, output);
gimp_plugin_set_pdb_error_handler (GIMP_PDB_ERROR_HANDLER_PLUGIN);
if (ts_interpret_string (list->data) != 0)
{
script_fu_output_to_console (TS_OUTPUT_ERROR,
output->str,
output->len,
console);
}
else
{
script_fu_output_to_console (TS_OUTPUT_NORMAL,
output->str,
output->len,
console);
}
gimp_plugin_set_pdb_error_handler (GIMP_PDB_ERROR_HANDLER_INTERNAL);
g_string_free (output, TRUE);
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_KEY_KP_Up:
case GDK_KEY_Up:
direction = -1;
break;
case GDK_KEY_KP_Down:
case GDK_KEY_Down:
direction = 1;
break;
case GDK_KEY_P:
case GDK_KEY_p:
if (event->state & GDK_CONTROL_MASK)
direction = -1;
break;
case GDK_KEY_N:
case GDK_KEY_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);
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;
}
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