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Diffstat (limited to 'src/ui/metaaccellabel.c')
| -rw-r--r-- | src/ui/metaaccellabel.c | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/src/ui/metaaccellabel.c b/src/ui/metaaccellabel.c new file mode 100644 index 00000000..5efd7d2e --- /dev/null +++ b/src/ui/metaaccellabel.c @@ -0,0 +1,456 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ + +/* Marco hacked-up GtkAccelLabel */ +/* Copyright (C) 2002 Red Hat, Inc. */ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * MetaAccelLabel: GtkLabel with accelerator monitoring facilities. + * Copyright (C) 1998 Tim Janik + * + * 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 + * Lesser 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. + */ + +/* + * Modified by the GTK+ Team and others 1997-2001. See the AUTHORS + * file for a list of people on the GTK+ Team. See the ChangeLog + * files for a list of changes. These files are distributed with + * GTK+ at ftp://ftp.gtk.org/pub/gtk/. + */ + +#include <config.h> +#include "metaaccellabel.h" +#include <gtk/gtk.h> +#include <string.h> +#include "util.h" + +static void meta_accel_label_class_init (MetaAccelLabelClass *klass); +static void meta_accel_label_init (MetaAccelLabel *accel_label); +static void meta_accel_label_destroy (GtkObject *object); +static void meta_accel_label_finalize (GObject *object); +static void meta_accel_label_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static gboolean meta_accel_label_expose_event (GtkWidget *widget, + GdkEventExpose *event); + +static void meta_accel_label_update (MetaAccelLabel *accel_label); +static int meta_accel_label_get_accel_width (MetaAccelLabel *accel_label); + + +static GtkLabelClass *parent_class = NULL; + + +GType +meta_accel_label_get_type (void) +{ + static GType accel_label_type = 0; + + if (!accel_label_type) + { + static const GtkTypeInfo accel_label_info = + { + "MetaAccelLabel", + sizeof (MetaAccelLabel), + sizeof (MetaAccelLabelClass), + (GtkClassInitFunc) meta_accel_label_class_init, + (GtkObjectInitFunc) meta_accel_label_init, + /* reserved_1 */ NULL, + /* reserved_2 */ NULL, + (GtkClassInitFunc) NULL, + }; + + accel_label_type = gtk_type_unique (GTK_TYPE_LABEL, &accel_label_info); + } + + return accel_label_type; +} + +static void +meta_accel_label_class_init (MetaAccelLabelClass *class) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (class); + GtkObjectClass *object_class = GTK_OBJECT_CLASS (class); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); + + parent_class = g_type_class_peek_parent (class); + + gobject_class->finalize = meta_accel_label_finalize; + + object_class->destroy = meta_accel_label_destroy; + + widget_class->size_request = meta_accel_label_size_request; + widget_class->expose_event = meta_accel_label_expose_event; + + class->signal_quote1 = g_strdup ("<:"); + class->signal_quote2 = g_strdup (":>"); + /* This is the text that should appear next to menu accelerators + * that use the shift key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_shift = g_strdup (_("Shift")); + /* This is the text that should appear next to menu accelerators + * that use the control key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_control = g_strdup (_("Ctrl")); + /* This is the text that should appear next to menu accelerators + * that use the alt key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_alt = g_strdup (_("Alt")); + /* This is the text that should appear next to menu accelerators + * that use the meta key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_meta = g_strdup (_("Meta")); + /* This is the text that should appear next to menu accelerators + * that use the super key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_super = g_strdup (_("Super")); + /* This is the text that should appear next to menu accelerators + * that use the hyper key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_hyper = g_strdup (_("Hyper")); + /* This is the text that should appear next to menu accelerators + * that use the mod2 key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_mod2 = g_strdup (_("Mod2")); + /* This is the text that should appear next to menu accelerators + * that use the mod3 key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_mod3 = g_strdup (_("Mod3")); + /* This is the text that should appear next to menu accelerators + * that use the mod4 key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_mod4 = g_strdup (_("Mod4")); + /* This is the text that should appear next to menu accelerators + * that use the mod5 key. If the text on this key isn't typically + * translated on keyboards used for your language, don't translate + * this. + */ + class->mod_name_mod5 = g_strdup (_("Mod5")); + + class->mod_separator = g_strdup ("+"); + class->accel_seperator = g_strdup (" / "); + class->latin1_to_char = TRUE; +} + +static void +meta_accel_label_init (MetaAccelLabel *accel_label) +{ + accel_label->accel_padding = 3; + accel_label->accel_string = NULL; + + meta_accel_label_update (accel_label); +} + +GtkWidget* +meta_accel_label_new_with_mnemonic (const gchar *string) +{ + MetaAccelLabel *accel_label; + + g_return_val_if_fail (string != NULL, NULL); + + accel_label = g_object_new (META_TYPE_ACCEL_LABEL, NULL); + + gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), string); + + return GTK_WIDGET (accel_label); +} + +static void +meta_accel_label_destroy (GtkObject *object) +{ + MetaAccelLabel *accel_label = META_ACCEL_LABEL (object); + + + g_free (accel_label->accel_string); + accel_label->accel_string = NULL; + + accel_label->accel_mods = 0; + accel_label->accel_key = 0; + + GTK_OBJECT_CLASS (parent_class)->destroy (object); +} + +static void +meta_accel_label_finalize (GObject *object) +{ + MetaAccelLabel *accel_label = META_ACCEL_LABEL (object); + + g_free (accel_label->accel_string); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +void +meta_accel_label_set_accelerator (MetaAccelLabel *accel_label, + guint accelerator_key, + MetaVirtualModifier accelerator_mods) +{ + g_return_if_fail (META_IS_ACCEL_LABEL (accel_label)); + + if (accelerator_key != accel_label->accel_key || + accelerator_mods != accel_label->accel_mods) + { + accel_label->accel_mods = accelerator_mods; + accel_label->accel_key = accelerator_key; + + meta_accel_label_update (accel_label); + } +} + +static int +meta_accel_label_get_accel_width (MetaAccelLabel *accel_label) +{ + g_return_val_if_fail (META_IS_ACCEL_LABEL (accel_label), 0); + + return (accel_label->accel_string_width + + (accel_label->accel_string_width ? accel_label->accel_padding : 0)); +} + +static void +meta_accel_label_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + MetaAccelLabel *accel_label = META_ACCEL_LABEL (widget); + PangoLayout *layout; + gint width; + + if (GTK_WIDGET_CLASS (parent_class)->size_request) + GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition); + + layout = gtk_widget_create_pango_layout (widget, accel_label->accel_string); + pango_layout_get_pixel_size (layout, &width, NULL); + accel_label->accel_string_width = width; + + g_object_unref (G_OBJECT (layout)); +} + +static gboolean +meta_accel_label_expose_event (GtkWidget *widget, + GdkEventExpose *event) +{ + MetaAccelLabel *accel_label = META_ACCEL_LABEL (widget); + GtkMisc *misc = GTK_MISC (accel_label); + PangoLayout *layout; + + if (GTK_WIDGET_DRAWABLE (accel_label)) + { + int ac_width; + + ac_width = meta_accel_label_get_accel_width (accel_label); + + if (widget->allocation.width >= widget->requisition.width + ac_width) + { + GtkTextDirection direction = gtk_widget_get_direction (widget); + gint x; + gint y; + + if (direction == GTK_TEXT_DIR_RTL) + { + widget->allocation.x += ac_width; + } + widget->allocation.width -= ac_width; + + if (GTK_WIDGET_CLASS (parent_class)->expose_event) + GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event); + + if (direction == GTK_TEXT_DIR_RTL) + { + widget->allocation.x -= ac_width; + } + widget->allocation.width += ac_width; + + if (direction == GTK_TEXT_DIR_RTL) + { + x = widget->allocation.x + misc->xpad; + } + else + { + x = widget->allocation.x + widget->allocation.width - misc->xpad - ac_width; + } + + y = (widget->allocation.y * (1.0 - misc->yalign) + + (widget->allocation.y + widget->allocation.height - + (widget->requisition.height - misc->ypad * 2)) * + misc->yalign) + 1.5; + + layout = gtk_widget_create_pango_layout (widget, accel_label->accel_string); + + gtk_paint_layout (widget->style, + widget->window, + GTK_WIDGET_STATE (widget), + FALSE, + &event->area, + widget, + "accellabel", + x, y, + layout); + + g_object_unref (G_OBJECT (layout)); + } + else + { + if (GTK_WIDGET_CLASS (parent_class)->expose_event) + GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event); + } + } + + return FALSE; +} + +static void +meta_accel_label_update (MetaAccelLabel *accel_label) +{ + MetaAccelLabelClass *class; + GString *gstring; + gboolean seen_mod = FALSE; + gunichar ch; + + g_return_if_fail (META_IS_ACCEL_LABEL (accel_label)); + + class = META_ACCEL_LABEL_GET_CLASS (accel_label); + + g_free (accel_label->accel_string); + accel_label->accel_string = NULL; + + gstring = g_string_new (accel_label->accel_string); + g_string_append (gstring, gstring->len ? class->accel_seperator : " "); + + if (accel_label->accel_mods & META_VIRTUAL_SHIFT_MASK) + { + g_string_append (gstring, class->mod_name_shift); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_CONTROL_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_control); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_ALT_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_alt); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_META_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_meta); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_SUPER_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_super); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_HYPER_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_hyper); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_MOD2_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_mod2); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_MOD3_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_mod3); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_MOD4_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_mod4); + seen_mod = TRUE; + } + if (accel_label->accel_mods & META_VIRTUAL_MOD5_MASK) + { + if (seen_mod) + g_string_append (gstring, class->mod_separator); + g_string_append (gstring, class->mod_name_mod5); + seen_mod = TRUE; + } + + if (seen_mod) + g_string_append (gstring, class->mod_separator); + + ch = gdk_keyval_to_unicode (accel_label->accel_key); + if (ch && (g_unichar_isgraph (ch) || ch == ' ') && + (ch < 0x80 || class->latin1_to_char)) + { + switch (ch) + { + case ' ': + g_string_append (gstring, "Space"); + break; + case '\\': + g_string_append (gstring, "Backslash"); + break; + default: + g_string_append_unichar (gstring, g_unichar_toupper (ch)); + break; + } + } + else + { + gchar *tmp; + + tmp = gtk_accelerator_name (accel_label->accel_key, 0); + if (tmp[0] != 0 && tmp[1] == 0) + tmp[0] = g_ascii_toupper (tmp[0]); + g_string_append (gstring, tmp); + g_free (tmp); + } + + g_free (accel_label->accel_string); + accel_label->accel_string = gstring->str; + g_string_free (gstring, FALSE); + + g_assert (accel_label->accel_string); + /* accel_label->accel_string = g_strdup ("-/-"); */ + + gtk_widget_queue_resize (GTK_WIDGET (accel_label)); +} |