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- /* LIBGIMP - The GIMP Library
- * Copyright (C) 1995-1999 Peter Mattis and Spencer Kimball
- *
- * gimpunitmenu.c
- * Copyright (C) 1999 Michael Natterer <mitch@gimp.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
- #include "config.h"
-
- #include <gtk/gtk.h>
-
- #include "gimpdialog.h"
- #include "gimpunitmenu.h"
-
- #include "libgimp-intl.h"
-
-
- /* private functions */
- static const gchar * gimp_unit_menu_build_string (const gchar *format,
- GimpUnit unit);
- static void gimp_unit_menu_callback (GtkWidget *widget,
- gpointer data);
-
- enum
- {
- UNIT_CHANGED,
- LAST_SIGNAL
- };
-
- static guint gimp_unit_menu_signals[LAST_SIGNAL] = { 0 };
-
- static GtkOptionMenuClass *parent_class = NULL;
-
- static void
- gimp_unit_menu_destroy (GtkObject *object)
- {
- GimpUnitMenu *gum;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (GIMP_IS_UNIT_MENU (object));
-
- gum = GIMP_UNIT_MENU (object);
-
- if (gum->format)
- g_free (gum->format);
-
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
- }
-
- static void
- gimp_unit_menu_class_init (GimpUnitMenuClass *class)
- {
- GtkObjectClass *object_class;
-
- object_class = (GtkObjectClass*) class;
-
- parent_class = gtk_type_class (gtk_option_menu_get_type ());
-
- gimp_unit_menu_signals[UNIT_CHANGED] =
- gtk_signal_new ("unit_changed",
- GTK_RUN_FIRST,
- object_class->type,
- GTK_SIGNAL_OFFSET (GimpUnitMenuClass,
- unit_changed),
- gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
-
- gtk_object_class_add_signals (object_class, gimp_unit_menu_signals,
- LAST_SIGNAL);
-
- class->unit_changed = NULL;
-
- object_class->destroy = gimp_unit_menu_destroy;
- }
-
- static void
- gimp_unit_menu_init (GimpUnitMenu *gum)
- {
- gum->format = NULL;
- gum->unit = GIMP_UNIT_PIXEL;
- gum->show_pixels = FALSE;
- gum->show_percent = FALSE;
- gum->selection = NULL;
- gum->clist = NULL;
- }
-
- GtkType
- gimp_unit_menu_get_type (void)
- {
- static GtkType gum_type = 0;
-
- if (!gum_type)
- {
- GtkTypeInfo gum_info =
- {
- "GimpUnitMenu",
- sizeof (GimpUnitMenu),
- sizeof (GimpUnitMenuClass),
- (GtkClassInitFunc) gimp_unit_menu_class_init,
- (GtkObjectInitFunc) gimp_unit_menu_init,
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL
- };
-
- gum_type = gtk_type_unique (gtk_option_menu_get_type (), &gum_info);
- }
-
- return gum_type;
- }
-
- /**
- * gimp_unit_menu_new:
- * @format: A printf-like format string which is used to create the unit
- * strings.
- * @unit: The initially selected unit.
- * @show_pixels: #TRUE if the unit menu should contain an item for
- * GIMP_UNIT_PIXEL.
- * @show_percent: #TRUE in the unit menu should contain an item for
- * GIMP_UNIT_PERCENT.
- * @show_custom: #TRUE if the unit menu should contain a "More..." item for
- * opening the user-defined-unit selection dialog.
- *
- * Creates a new #GimpUnitMenu widget.
- *
- * The @format string supports the following percent expansions:
- *
- * Returns: A pointer to the new #GimpUnitMenu widget.
- *
- */
- GtkWidget *
- gimp_unit_menu_new (const gchar *format,
- GimpUnit unit,
- gboolean show_pixels,
- gboolean show_percent,
- gboolean show_custom)
- {
- GimpUnitMenu *gum;
- GtkWidget *menu;
- GtkWidget *menuitem;
- GimpUnit u;
-
- g_return_val_if_fail ((unit >= GIMP_UNIT_PIXEL) &&
- (unit < gimp_unit_get_number_of_units ()) ||
- (unit == GIMP_UNIT_PERCENT), NULL);
-
- if ((unit >= gimp_unit_get_number_of_built_in_units ()) &&
- (unit != GIMP_UNIT_PERCENT))
- show_custom = TRUE;
-
- gum = gtk_type_new (gimp_unit_menu_get_type ());
-
- gum->format = g_strdup (format);
- gum->show_pixels = show_pixels;
- gum->show_percent = show_percent;
-
- menu = gtk_menu_new ();
- for (u = show_pixels ? GIMP_UNIT_PIXEL : GIMP_UNIT_INCH;
- u < gimp_unit_get_number_of_built_in_units ();
- u++)
- {
- /* special cases "pixels" and "percent" */
- if (u == GIMP_UNIT_INCH)
- {
- if (show_percent)
- {
- menuitem =
- gtk_menu_item_new_with_label
- (gimp_unit_menu_build_string (format, GIMP_UNIT_PERCENT));
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
- GTK_SIGNAL_FUNC (gimp_unit_menu_callback),
- gum);
- gtk_object_set_data (GTK_OBJECT (menuitem), "gimp_unit_menu",
- (gpointer) GIMP_UNIT_PERCENT);
- gtk_widget_show (menuitem);
- }
-
- if (show_pixels || show_percent)
- {
- menuitem = gtk_menu_item_new ();
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_widget_set_sensitive (menuitem, FALSE);
- gtk_widget_show (menuitem);
- }
- }
-
- menuitem =
- gtk_menu_item_new_with_label (gimp_unit_menu_build_string (format, u));
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
- GTK_SIGNAL_FUNC (gimp_unit_menu_callback),
- gum);
- gtk_object_set_data (GTK_OBJECT (menuitem), "gimp_unit_menu",
- (gpointer) u);
- gtk_widget_show (menuitem);
- }
-
- if ((unit >= gimp_unit_get_number_of_built_in_units ()) &&
- (unit != GIMP_UNIT_PERCENT))
- {
- menuitem = gtk_menu_item_new ();
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_widget_set_sensitive (menuitem, FALSE);
- gtk_widget_show (menuitem);
-
- menuitem =
- gtk_menu_item_new_with_label (gimp_unit_menu_build_string (format, unit));
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
- GTK_SIGNAL_FUNC (gimp_unit_menu_callback),
- gum);
- gtk_object_set_data (GTK_OBJECT (menuitem), "gimp_unit_menu",
- (gpointer) unit);
- gtk_widget_show (menuitem);
- }
-
- if (show_custom)
- {
- menuitem = gtk_menu_item_new ();
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_widget_set_sensitive (menuitem, FALSE);
- gtk_widget_show (menuitem);
-
- menuitem =
- gtk_menu_item_new_with_label (_("More..."));
- gtk_menu_append (GTK_MENU (menu), menuitem);
- gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
- GTK_SIGNAL_FUNC (gimp_unit_menu_callback),
- gum);
- gtk_object_set_data (GTK_OBJECT (menuitem), "gimp_unit_menu",
- (gpointer) (GIMP_UNIT_PERCENT + 1));
- gtk_widget_show (menuitem);
- }
-
- gtk_option_menu_set_menu (GTK_OPTION_MENU (gum), menu);
-
- gum->unit = unit;
- gtk_option_menu_set_history (GTK_OPTION_MENU (gum),
- (unit == GIMP_UNIT_PIXEL) ? 0 :
- ((unit == GIMP_UNIT_PERCENT) ?
- (show_pixels ? 1 : 0) :
- (((show_pixels || show_percent) ? 2 : 0) +
- ((show_pixels && show_percent) ? 1 : 0) +
- ((unit < GIMP_UNIT_END) ?
- (unit - 1) : GIMP_UNIT_END))));
-
- return GTK_WIDGET (gum);
- }
-
- /**
- * gimp_unit_menu_set_unit:
- * @gum: The unit menu you want to set the unit for.
- * @unit: The new unit.
- *
- * Sets a new #GimpUnit for the specified #GimpUnitMenu.
- *
- */
- void
- gimp_unit_menu_set_unit (GimpUnitMenu *gum,
- GimpUnit unit)
- {
- GtkWidget *menuitem = NULL;
- GList *items;
- gint user_unit;
-
- g_return_if_fail (gum != NULL);
- g_return_if_fail (GIMP_IS_UNIT_MENU (gum));
- g_return_if_fail (((unit >= GIMP_UNIT_PIXEL) &&
- ((unit > GIMP_UNIT_PIXEL) || gum->show_pixels) &&
- (unit < gimp_unit_get_number_of_units ())) ||
- ((unit == GIMP_UNIT_PERCENT) && gum->show_percent));
-
- if (unit == gum->unit)
- return;
-
- items = GTK_MENU_SHELL (GTK_OPTION_MENU (gum)->menu)->children;
- user_unit = (GIMP_UNIT_END +
- (((gum->show_pixels || gum->show_percent) ? 2 : 0) +
- ((gum->show_pixels && gum->show_percent) ? 1 : 0)));
-
- if ((unit >= GIMP_UNIT_END) && (unit != GIMP_UNIT_PERCENT))
- {
- if ((g_list_length (items) - 3) >= user_unit)
- {
- gtk_widget_destroy (GTK_WIDGET (g_list_nth_data (items,
- user_unit - 1)));
- gtk_widget_destroy (GTK_WIDGET (g_list_nth_data (items,
- user_unit - 1)));
- }
-
- menuitem = gtk_menu_item_new ();
- gtk_menu_append (GTK_MENU (GTK_OPTION_MENU (gum)->menu), menuitem);
- gtk_widget_set_sensitive (menuitem, FALSE);
- gtk_menu_reorder_child (GTK_MENU (GTK_OPTION_MENU (gum)->menu),
- menuitem, user_unit - 1);
- gtk_widget_show (menuitem);
-
- menuitem =
- gtk_menu_item_new_with_label (gimp_unit_menu_build_string (gum->format,
- unit));
- gtk_menu_append (GTK_MENU (GTK_OPTION_MENU (gum)->menu), menuitem);
- gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
- GTK_SIGNAL_FUNC (gimp_unit_menu_callback),
- gum);
- gtk_object_set_data (GTK_OBJECT (menuitem), "gimp_unit_menu",
- (gpointer) unit);
- gtk_menu_reorder_child (GTK_MENU (GTK_OPTION_MENU (gum)->menu),
- menuitem, user_unit);
- gtk_widget_show (menuitem);
- }
-
- gum->unit = unit;
- gtk_option_menu_set_history (GTK_OPTION_MENU (gum),
- (unit == GIMP_UNIT_PIXEL) ? 0 :
- ((unit == GIMP_UNIT_PERCENT) ?
- (gum->show_pixels ? 1 : 0) :
- (((gum->show_pixels ||
- gum->show_percent) ? 2 : 0) +
- ((gum->show_pixels &&
- gum->show_percent) ? 1 : 0) +
- ((unit < GIMP_UNIT_END) ?
- (unit - 1) : GIMP_UNIT_END))));
- }
-
- /**
- * gimp_unit_menu_get_unit:
- * @gum: The unit menu you want to know the unit of.
- *
- * Returns the #GimpUnit the user has selected from the #GimpUnitMenu.
- *
- * Returns: The unit the user has selected.
- *
- */
- GimpUnit
- gimp_unit_menu_get_unit (GimpUnitMenu *gum)
- {
- g_return_val_if_fail (gum != NULL, GIMP_UNIT_INCH);
- g_return_val_if_fail (GIMP_IS_UNIT_MENU (gum), GIMP_UNIT_INCH);
-
- return gum->unit;
- }
-
- /* most of the next two functions is stolen from app/gdisplay.c */
- static gint
- print (gchar *buf,
- gint len,
- gint start,
- const gchar *fmt,
- ...)
- {
- va_list args;
- gint printed;
-
- va_start (args, fmt);
-
- printed = g_vsnprintf (buf + start, len - start, fmt, args);
- if (printed < 0)
- printed = len - start;
-
- va_end (args);
-
- return printed;
- }
-
- static const gchar *
- gimp_unit_menu_build_string (const gchar *format,
- GimpUnit unit)
- {
- static gchar buffer[64];
- gint i = 0;
-
- while (i < (sizeof (buffer) - 1) && *format)
- {
- switch (*format)
- {
- case '%':
- format++;
- switch (*format)
- {
- case 0:
- g_warning ("unit-menu-format string ended within %%-sequence");
- break;
-
- case '%':
- buffer[i++] = '%';
- break;
-
- case 'f': /* factor (how many units make up an inch) */
- i += print (buffer, sizeof (buffer), i, "%f",
- gimp_unit_get_factor (unit));
- break;
-
- case 'y': /* symbol ("''" for inch) */
- i += print (buffer, sizeof (buffer), i, "%s",
- gimp_unit_get_symbol (unit));
- break;
-
- case 'a': /* abbreviation */
- i += print (buffer, sizeof (buffer), i, "%s",
- gimp_unit_get_abbreviation (unit));
- break;
-
- case 's': /* singular */
- i += print (buffer, sizeof (buffer), i, "%s",
- gimp_unit_get_singular (unit));
- break;
-
- case 'p': /* plural */
- i += print (buffer, sizeof (buffer), i, "%s",
- gimp_unit_get_plural (unit));
- break;
-
- default:
- g_warning ("gimp_unit_menu_build_string(): "
- "unit-menu-format contains unknown format sequence "
- "'%%%c'", *format);
- break;
- }
- break;
-
- default:
- buffer[i++] = *format;
- break;
- }
-
- format++;
- }
-
- buffer[MIN (i, sizeof (buffer) - 1)] = 0;
-
- return buffer;
- }
-
- /* private callback of gimp_unit_menu_create_selection () */
- static void
- gimp_unit_menu_selection_ok_callback (GtkWidget *widget,
- gpointer data)
- {
- GimpUnitMenu *gum;
- GimpUnit unit;
-
- gum = GIMP_UNIT_MENU (data);
-
- if (gum->selection && GTK_CLIST (gum->clist)->selection)
- {
- unit = (GimpUnit)
- gtk_clist_get_row_data (GTK_CLIST (gum->clist),
- (gint) (GTK_CLIST (gum->clist)->selection->data));
- gimp_unit_menu_set_unit (gum, unit);
- gtk_signal_emit (GTK_OBJECT (gum),
- gimp_unit_menu_signals[UNIT_CHANGED]);
-
- gtk_widget_destroy (gum->selection);
- }
- }
-
- static void
- gimp_unit_menu_selection_select_row_callback (GtkWidget *widget,
- gint row,
- gint column,
- GdkEventButton *bevent,
- gpointer data)
- {
- if (bevent && bevent->type == GDK_2BUTTON_PRESS)
- gimp_unit_menu_selection_ok_callback (NULL, data);
- }
-
- /* private function of gimp_unit_menu_callback () */
- static void
- gimp_unit_menu_create_selection (GimpUnitMenu *gum)
- {
- GtkWidget *vbox;
- GtkWidget *scrolled_win;
- gchar *titles[2];
- gchar *row[2];
- GimpUnit unit;
- gint num_units;
- gint unit_width;
- gint factor_width;
-
- gum->selection =
- gimp_dialog_new (_("Unit Selection"), "unit_selection",
- gimp_standard_help_func, "dialogs/unit_selection.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), gimp_unit_menu_selection_ok_callback,
- gum, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (gum->selection), "destroy",
- GTK_SIGNAL_FUNC (gtk_widget_destroyed),
- &gum->selection);
-
- gtk_signal_connect_object_while_alive (GTK_OBJECT (gum), "destroy",
- GTK_SIGNAL_FUNC (gtk_widget_destroy),
- GTK_OBJECT (gum->selection));
- gtk_signal_connect_object_while_alive (GTK_OBJECT (gum), "unmap",
- GTK_SIGNAL_FUNC (gtk_widget_destroy),
- GTK_OBJECT (gum->selection));
-
- /* the main vbox */
- vbox = gtk_vbox_new (FALSE, 0);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (GTK_DIALOG (gum->selection)->vbox), vbox);
- gtk_widget_show (vbox);
-
- /* the selection list */
- scrolled_win = gtk_scrolled_window_new (NULL, NULL);
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
- GTK_POLICY_NEVER,
- GTK_POLICY_ALWAYS);
- gtk_container_add (GTK_CONTAINER (vbox), scrolled_win);
- gtk_widget_show (scrolled_win);
-
- titles[0] = _("Unit");
- titles[1] = _("Factor");
- gum->clist = gtk_clist_new_with_titles (2, titles);
- gtk_clist_set_shadow_type (GTK_CLIST (gum->clist), GTK_SHADOW_IN);
- gtk_clist_set_selection_mode (GTK_CLIST (gum->clist), GTK_SELECTION_BROWSE);
- gtk_clist_column_titles_passive (GTK_CLIST (gum->clist));
- /* the unit lines */
- num_units = gimp_unit_get_number_of_units ();
- for (unit = GIMP_UNIT_END; unit < num_units; unit++)
- {
- row[0] = g_strdup (gimp_unit_menu_build_string (gum->format, unit));
- row[1] = g_strdup (gimp_unit_menu_build_string ("(%f)", unit));
-
- gtk_clist_append (GTK_CLIST (gum->clist), row);
- gtk_clist_set_row_data (GTK_CLIST (gum->clist),
- unit - GIMP_UNIT_END,
- (gpointer) unit);
-
- g_free (row[0]);
- g_free (row[1]);
- }
-
- unit_width = gtk_clist_optimal_column_width (GTK_CLIST (gum->clist), 0);
- factor_width = gtk_clist_optimal_column_width (GTK_CLIST (gum->clist), 1);
-
- gtk_clist_set_column_width (GTK_CLIST (gum->clist), 0, unit_width);
- gtk_clist_set_column_width (GTK_CLIST (gum->clist), 1, factor_width);
-
- gtk_widget_set_usize (gum->clist, -1, 150);
-
- gtk_container_add (GTK_CONTAINER (scrolled_win), gum->clist);
- gtk_signal_connect (GTK_OBJECT (gum->clist), "select_row",
- GTK_SIGNAL_FUNC (gimp_unit_menu_selection_select_row_callback),
- gum);
- gtk_widget_show (gum->clist);
-
- gtk_signal_connect (GTK_OBJECT (gum->clist), "destroy",
- GTK_SIGNAL_FUNC (gtk_widget_destroyed),
- &gum->clist);
-
- gtk_widget_show (vbox);
- gtk_widget_show (gum->selection);
-
- if (gum->unit >= GIMP_UNIT_END)
- {
- gtk_clist_select_row (GTK_CLIST (gum->clist),
- gum->unit - GIMP_UNIT_END, 0);
- gtk_clist_moveto (GTK_CLIST (gum->clist),
- gum->unit - GIMP_UNIT_END, 0, 0.0, 0.0);
- }
- }
-
- static void
- gimp_unit_menu_callback (GtkWidget *widget,
- gpointer data)
- {
- GimpUnitMenu *gum;
- GimpUnit new_unit;
-
- gum = data;
- new_unit = (guint) gtk_object_get_data (GTK_OBJECT (widget),
- "gimp_unit_menu");
-
- if (gum->unit == new_unit)
- return;
-
- /* was "More..." selected? */
- if (new_unit == (GIMP_UNIT_PERCENT + 1))
- {
- gtk_option_menu_set_history (GTK_OPTION_MENU (gum),
- (gum->unit == GIMP_UNIT_PIXEL) ? 0 :
- ((gum->unit == GIMP_UNIT_PERCENT) ?
- (gum->show_pixels ? 1 : 0) :
- ((gum->show_pixels ||
- gum->show_percent ? 2 : 0) +
- (gum->show_pixels &&
- gum->show_percent ? 1 : 0) +
- ((gum->unit < GIMP_UNIT_END) ?
- gum->unit - 1 : GIMP_UNIT_END))));
- if (! gum->selection)
- gimp_unit_menu_create_selection (gum);
- return;
- }
- else if (gum->selection)
- {
- gtk_widget_destroy (gum->selection);
- }
-
- gimp_unit_menu_set_unit (gum, new_unit);
- gtk_signal_emit (GTK_OBJECT (gum),
- gimp_unit_menu_signals[UNIT_CHANGED]);
- }
-