gtk2/gtk/gtkaccellabel.c
Owen Taylor fcfe7370d8 Move main thread lock back to GDK - we need it there for locking when
Wed Dec 16 13:06:17 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdk.[ch] gtk/gtkmain.[ch] gtk/gtkprivate.h: Move main
	thread lock back to GDK - we need it there for locking
	when translating events. Rename things appropriately.

Wed Dec 16 11:44:21 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkrange.c (gtk_range_expose): Fix a x/y typo.

CVS:
1998-12-16 20:09:30 +00:00

475 lines
13 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GtkAccelLabel: 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 Library 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 Library 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 <string.h>
#include <ctype.h>
#include "gtkmain.h"
#include "gtksignal.h"
#include "gtkaccellabel.h"
enum {
ARG_0,
ARG_ACCEL_WIDGET
};
static void gtk_accel_label_class_init (GtkAccelLabelClass *klass);
static void gtk_accel_label_init (GtkAccelLabel *accel_label);
static void gtk_accel_label_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_accel_label_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_accel_label_destroy (GtkObject *object);
static void gtk_accel_label_finalize (GtkObject *object);
static void gtk_accel_label_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static gint gtk_accel_label_expose_event (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_accel_label_refetch_idle (GtkAccelLabel *accel_label);
static GtkAccelLabelClass *accel_label_class = NULL;
static GtkLabelClass *parent_class = NULL;
GtkType
gtk_accel_label_get_type (void)
{
static GtkType accel_label_type = 0;
if (!accel_label_type)
{
static const GtkTypeInfo accel_label_info =
{
"GtkAccelLabel",
sizeof (GtkAccelLabel),
sizeof (GtkAccelLabelClass),
(GtkClassInitFunc) gtk_accel_label_class_init,
(GtkObjectInitFunc) gtk_accel_label_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
accel_label_type = gtk_type_unique (gtk_label_get_type (), &accel_label_info);
}
return accel_label_type;
}
static void
gtk_accel_label_class_init (GtkAccelLabelClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkMiscClass *misc_class;
GtkLabelClass *label_class;
accel_label_class = class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
misc_class = (GtkMiscClass*) class;
label_class = (GtkLabelClass*) class;
parent_class = gtk_type_class (gtk_label_get_type ());
gtk_object_add_arg_type ("GtkAccelLabel::accel_widget", GTK_TYPE_WIDGET, GTK_ARG_READWRITE, ARG_ACCEL_WIDGET);
object_class->set_arg = gtk_accel_label_set_arg;
object_class->get_arg = gtk_accel_label_get_arg;
object_class->destroy = gtk_accel_label_destroy;
object_class->finalize = gtk_accel_label_finalize;
widget_class->size_request = gtk_accel_label_size_request;
widget_class->expose_event = gtk_accel_label_expose_event;
class->signal_quote1 = g_strdup ("<:");
class->signal_quote2 = g_strdup (":>");
class->mod_name_shift = g_strdup ("Shft");
class->mod_name_control = g_strdup ("Ctl");
class->mod_name_alt = g_strdup ("Alt");
class->mod_separator = g_strdup ("+");
class->accel_seperator = g_strdup (" / ");
class->latin1_to_char = TRUE;
}
static void
gtk_accel_label_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkAccelLabel *accel_label;
accel_label = GTK_ACCEL_LABEL (object);
switch (arg_id)
{
case ARG_ACCEL_WIDGET:
gtk_accel_label_set_accel_widget (accel_label, (GtkWidget*) GTK_VALUE_OBJECT (*arg));
break;
default:
break;
}
}
static void
gtk_accel_label_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkAccelLabel *accel_label;
accel_label = GTK_ACCEL_LABEL (object);
switch (arg_id)
{
case ARG_ACCEL_WIDGET:
GTK_VALUE_OBJECT (*arg) = (GtkObject*) accel_label->accel_widget;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_accel_label_init (GtkAccelLabel *accel_label)
{
accel_label->queue_id = 0;
accel_label->accel_padding = 3;
accel_label->accel_widget = NULL;
accel_label->accel_string = NULL;
gtk_accel_label_refetch (accel_label);
}
GtkWidget*
gtk_accel_label_new (const gchar *string)
{
GtkAccelLabel *accel_label;
g_return_val_if_fail (string != NULL, NULL);
accel_label = gtk_type_new (GTK_TYPE_ACCEL_LABEL);
gtk_label_set_text (GTK_LABEL (accel_label), string);
return GTK_WIDGET (accel_label);
}
static void
gtk_accel_label_destroy (GtkObject *object)
{
GtkAccelLabel *accel_label;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_ACCEL_LABEL (object));
accel_label = GTK_ACCEL_LABEL (object);
gtk_accel_label_set_accel_widget (accel_label, NULL);
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gtk_accel_label_finalize (GtkObject *object)
{
GtkAccelLabel *accel_label;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_ACCEL_LABEL (object));
accel_label = GTK_ACCEL_LABEL (object);
g_free (accel_label->accel_string);
GTK_OBJECT_CLASS (parent_class)->finalize (object);
}
guint
gtk_accel_label_get_accel_width (GtkAccelLabel *accel_label)
{
g_return_val_if_fail (accel_label != NULL, 0);
g_return_val_if_fail (GTK_IS_ACCEL_LABEL (accel_label), 0);
return (accel_label->accel_string_width +
(accel_label->accel_string_width ? accel_label->accel_padding : 0));
}
static void
gtk_accel_label_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkAccelLabel *accel_label;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ACCEL_LABEL (widget));
g_return_if_fail (requisition != NULL);
accel_label = GTK_ACCEL_LABEL (widget);
if (GTK_WIDGET_CLASS (parent_class)->size_request)
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
accel_label->accel_string_width = gdk_string_width (GTK_WIDGET (accel_label)->style->font,
accel_label->accel_string);
}
static gint
gtk_accel_label_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
GtkMisc *misc;
GtkAccelLabel *accel_label;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ACCEL_LABEL (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
accel_label = GTK_ACCEL_LABEL (widget);
misc = GTK_MISC (accel_label);
if (GTK_WIDGET_DRAWABLE (accel_label))
{
guint ac_width;
ac_width = gtk_accel_label_get_accel_width (accel_label);
if (widget->allocation.width >= widget->requisition.width + ac_width)
{
guint x;
guint y;
widget->allocation.width -= ac_width;
if (GTK_WIDGET_CLASS (parent_class)->expose_event)
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
widget->allocation.width += ac_width;
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 + widget->style->font->ascent) + 1.5;
if (GTK_WIDGET_STATE (accel_label) == GTK_STATE_INSENSITIVE)
gdk_draw_string (widget->window,
widget->style->font,
widget->style->white_gc,
x + 1,
y + 1,
accel_label->accel_string);
gdk_draw_string (widget->window,
widget->style->font,
widget->style->fg_gc[GTK_WIDGET_STATE (accel_label)],
x,
y,
accel_label->accel_string);
}
else
{
if (GTK_WIDGET_CLASS (parent_class)->expose_event)
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
}
}
return TRUE;
}
static void
gtk_accel_label_queue_refetch (GtkAccelLabel *accel_label)
{
g_return_if_fail (accel_label != NULL);
g_return_if_fail (GTK_IS_ACCEL_LABEL (accel_label));
if (accel_label->queue_id == 0)
accel_label->queue_id = gtk_idle_add_priority (GTK_PRIORITY_HIGH - 2,
(GtkFunction) gtk_accel_label_refetch_idle,
accel_label);
}
void
gtk_accel_label_set_accel_widget (GtkAccelLabel *accel_label,
GtkWidget *accel_widget)
{
g_return_if_fail (accel_label != NULL);
g_return_if_fail (GTK_IS_ACCEL_LABEL (accel_label));
if (accel_widget != NULL)
g_return_if_fail (GTK_IS_WIDGET (accel_widget));
if (accel_widget != accel_label->accel_widget)
{
if (accel_label->accel_widget)
{
gtk_signal_disconnect_by_func (GTK_OBJECT (accel_label->accel_widget),
GTK_SIGNAL_FUNC (gtk_accel_label_queue_refetch),
accel_label);
gtk_widget_unref (accel_label->accel_widget);
}
if (accel_label->queue_id)
{
gtk_idle_remove (accel_label->queue_id);
accel_label->queue_id = 0;
}
accel_label->accel_widget = accel_widget;
if (accel_label->accel_widget)
{
gtk_widget_ref (accel_label->accel_widget);
gtk_signal_connect_object_after (GTK_OBJECT (accel_label->accel_widget),
"add-accelerator",
GTK_SIGNAL_FUNC (gtk_accel_label_queue_refetch),
GTK_OBJECT (accel_label));
gtk_signal_connect_object_after (GTK_OBJECT (accel_label->accel_widget),
"remove-accelerator",
GTK_SIGNAL_FUNC (gtk_accel_label_queue_refetch),
GTK_OBJECT (accel_label));
}
}
}
static gboolean
gtk_accel_label_refetch_idle (GtkAccelLabel *accel_label)
{
gboolean retval;
GDK_THREADS_ENTER ();
retval = gtk_accel_label_refetch (accel_label);
GDK_THREADS_LEAVE ();
return retval;
}
gboolean
gtk_accel_label_refetch (GtkAccelLabel *accel_label)
{
GtkAccelLabelClass *class;
g_return_val_if_fail (accel_label != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ACCEL_LABEL (accel_label), FALSE);
class = GTK_ACCEL_LABEL_CLASS (GTK_OBJECT (accel_label)->klass);
g_free (accel_label->accel_string);
accel_label->accel_string = NULL;
if (accel_label->accel_widget)
{
GtkAccelEntry *entry = NULL;
GSList *slist;
slist = gtk_accel_group_entries_from_object (GTK_OBJECT (accel_label->accel_widget));
for (; slist; slist = slist->next)
{
entry = slist->data;
if (entry->accel_flags & GTK_ACCEL_VISIBLE)
{
GString *gstring;
gboolean had_mod;
gstring = g_string_new (accel_label->accel_string);
if (gstring->len)
g_string_append (gstring, class->accel_seperator);
else
g_string_append (gstring, " ");
if (entry->accel_flags & GTK_ACCEL_SIGNAL_VISIBLE)
{
g_string_append (gstring, class->signal_quote1);
g_string_append (gstring, gtk_signal_name (entry->signal_id));
g_string_append (gstring, class->signal_quote2);
}
had_mod = FALSE;
if (entry->accelerator_mods & GDK_SHIFT_MASK)
{
g_string_append (gstring, class->mod_name_shift);
had_mod = TRUE;
}
if (entry->accelerator_mods & GDK_CONTROL_MASK)
{
if (had_mod)
g_string_append (gstring, class->mod_separator);
g_string_append (gstring, class->mod_name_control);
had_mod = TRUE;
}
if (entry->accelerator_mods & GDK_MOD1_MASK)
{
if (had_mod)
g_string_append (gstring, class->mod_separator);
g_string_append (gstring, class->mod_name_alt);
had_mod = TRUE;
}
if (had_mod)
g_string_append (gstring, class->mod_separator);
if (entry->accelerator_key < 0x80 ||
(entry->accelerator_key > 0x80 &&
entry->accelerator_key <= 0xff &&
class->latin1_to_char))
{
switch (entry->accelerator_key)
{
case ' ':
g_string_append (gstring, "Space");
break;
case '\\':
g_string_append (gstring, "Backslash");
break;
default:
g_string_append_c (gstring, toupper (entry->accelerator_key));
break;
}
}
else
{
gchar *tmp;
tmp = gtk_accelerator_name (entry->accelerator_key, 0);
if (tmp[0] != 0 && tmp[1] == 0)
tmp[0] = 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);
}
}
}
if (!accel_label->accel_string)
accel_label->accel_string = g_strdup ("");
if (accel_label->queue_id)
{
gtk_idle_remove (accel_label->queue_id);
accel_label->queue_id = 0;
}
gtk_widget_queue_resize (GTK_WIDGET (accel_label));
return FALSE;
}