/* LIBGIMP - The GIMP Library * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball * * gimpmemsizeentry.c * Copyright (C) 2000-2003 Sven Neumann * * 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 #include "gimpwidgetstypes.h" #include "gimpmemsizeentry.h" #include "gimpwidgets.h" #include "libgimp/libgimp-intl.h" enum { VALUE_CHANGED, LAST_SIGNAL }; static void gimp_memsize_entry_class_init (GimpMemsizeEntryClass *klass); static void gimp_memsize_entry_init (GimpMemsizeEntry *entry); static void gimp_memsize_entry_finalize (GObject *object); static void gimp_memsize_entry_adj_callback (GtkAdjustment *adj, GimpMemsizeEntry *entry); static void gimp_memsize_entry_unit_callback (GtkWidget *widget, GimpMemsizeEntry *entry); static guint gimp_memsize_entry_signals[LAST_SIGNAL] = { 0 }; static GtkHBoxClass *parent_class = NULL; GType gimp_memsize_entry_get_type (void) { static GType entry_type = 0; if (! entry_type) { static const GTypeInfo entry_info = { sizeof (GimpMemsizeEntryClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gimp_memsize_entry_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GimpMemsizeEntry), 0, /* n_preallocs */ (GInstanceInitFunc) gimp_memsize_entry_init, }; entry_type = g_type_register_static (GTK_TYPE_HBOX, "GimpMemsizeEntry", &entry_info, 0); } return entry_type; } static void gimp_memsize_entry_class_init (GimpMemsizeEntryClass *klass) { GObjectClass *object_class; parent_class = g_type_class_peek_parent (klass); object_class = G_OBJECT_CLASS (klass); object_class->finalize = gimp_memsize_entry_finalize; gimp_memsize_entry_signals[VALUE_CHANGED] = g_signal_new ("value_changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpMemsizeEntryClass, value_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); klass->value_changed = NULL; } static void gimp_memsize_entry_init (GimpMemsizeEntry *entry) { gtk_box_set_spacing (GTK_BOX (entry), 4); entry->value = 0; entry->lower = 0; entry->upper = 0; entry->shift = 0; entry->adjustment = NULL; entry->menu = NULL; } static void gimp_memsize_entry_finalize (GObject *object) { GimpMemsizeEntry *entry = (GimpMemsizeEntry *) object; if (entry->adjustment) { g_object_unref (entry->adjustment); entry->adjustment = NULL; } G_OBJECT_CLASS (parent_class)->finalize (object); } static void gimp_memsize_entry_adj_callback (GtkAdjustment *adj, GimpMemsizeEntry *entry) { guint64 size = gtk_adjustment_get_value (adj); entry->value = size << entry->shift; g_signal_emit (entry, gimp_memsize_entry_signals[VALUE_CHANGED], 0); } static void gimp_memsize_entry_unit_callback (GtkWidget *widget, GimpMemsizeEntry *entry) { guint shift; gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), (gint *) &shift); #if _MSC_VER < 1200 # define CAST (gint64) #else # define CAST #endif if (shift != entry->shift) { entry->shift = shift; entry->adjustment->value = CAST entry->value >> shift; entry->adjustment->lower = CAST entry->lower >> shift; entry->adjustment->upper = CAST entry->upper >> shift; gtk_adjustment_value_changed (entry->adjustment); gtk_adjustment_changed (entry->adjustment); } #undef CAST } /** * gimp_memsize_entry_new: * @value: the initial value (in Bytes) * @lower: the lower limit for the value (in Bytes) * @upper: the upper limit for the value (in Bytes) * * Creates a new #GimpMemsizeEntry which is a #GtkHBox with a #GtkSpinButton * and a #GtkOptionMenu all setup to allow the user to enter memory sizes. * * Returns: Pointer to the new #GimpMemsizeEntry. **/ GtkWidget * gimp_memsize_entry_new (guint64 value, guint64 lower, guint64 upper) { GimpMemsizeEntry *entry; guint shift; #if _MSC_VER < 1200 # define CAST (gint64) #else # define CAST #endif g_return_val_if_fail (value >= lower && value <= upper, NULL); entry = g_object_new (GIMP_TYPE_MEMSIZE_ENTRY, NULL); for (shift = 30; shift > 10; shift -= 10) { if (value > ((guint64) 1 << shift) && value % ((guint64) 1 << shift) == 0) break; } entry->value = value; entry->lower = lower; entry->upper = upper; entry->shift = shift; entry->spinbutton = gimp_spin_button_new ((GtkObject **) &entry->adjustment, CAST (value >> shift), CAST (lower >> shift), CAST (upper >> shift), 1, 8, 0, 1, 0); #undef CAST g_object_ref (entry->adjustment); gtk_object_sink (GTK_OBJECT (entry->adjustment)); gtk_entry_set_width_chars (GTK_ENTRY (entry->spinbutton), 10); gtk_box_pack_start (GTK_BOX (entry), entry->spinbutton, FALSE, FALSE, 0); gtk_widget_show (entry->spinbutton); g_signal_connect (entry->adjustment, "value_changed", G_CALLBACK (gimp_memsize_entry_adj_callback), entry); entry->menu = gimp_int_combo_box_new (_("KiloBytes"), 10, _("MegaBytes"), 20, _("GigaBytes"), 30, NULL); gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (entry->menu), shift); g_signal_connect (entry->menu, "changed", G_CALLBACK (gimp_memsize_entry_unit_callback), entry); gtk_box_pack_start (GTK_BOX (entry), entry->menu, FALSE, FALSE, 0); gtk_widget_show (entry->menu); return GTK_WIDGET (entry); } /** * gimp_memsize_entry_set_value: * @entry: a #GimpMemsizeEntry * @value: the new value (in Bytes) * * Sets the @entry's value. Please note that the #GimpMemsizeEntry rounds * the value to full Kilobytes. **/ void gimp_memsize_entry_set_value (GimpMemsizeEntry *entry, guint64 value) { guint shift; g_return_if_fail (GIMP_IS_MEMSIZE_ENTRY (entry)); g_return_if_fail (value >= entry->lower && value <= entry->upper); for (shift = 30; shift > 10; shift -= 10) { if (value > ((guint64) 1 << shift) && value % ((guint64) 1 << shift) == 0) break; } if (shift != entry->shift) { entry->shift = shift; entry->value = value; gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (entry->menu), shift); } #if _MSC_VER < 1200 # define CAST (gint64) #else # define CAST #endif gtk_adjustment_set_value (entry->adjustment, CAST (value >> shift)); #undef CASE } /** * gimp_memsize_entry_get_value: * @entry: a #GimpMemsizeEntry * * Retrieves the current value from a #GimpMemsizeEntry. * * Returns: the current value of @entry (in Bytes). **/ guint64 gimp_memsize_entry_get_value (GimpMemsizeEntry *entry) { g_return_val_if_fail (GIMP_IS_MEMSIZE_ENTRY (entry), 0); return entry->value; }