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gtk2/gtk/gtklabel.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string.h>
#include "gtklabel.h"
#include "gdk/gdkkeysyms.h"
#include "gdk/gdki18n.h"
enum {
ARG_0,
ARG_LABEL,
ARG_PATTERN,
ARG_JUSTIFY
};
typedef struct _GtkLabelULine GtkLabelULine;
struct _GtkLabelWord
{
GdkWChar *beginning;
gint length;
/* FIXME:
* We need (space,width) only before we've set (x,y), so to save
* memory, these pairs should really be wrapped in a union.
* I haven't yet figured out how to do this without making the code
* look ugly.
*/
gint space;
gint width;
gint x;
gint y;
GtkLabelWord *next;
gint uline_y;
GtkLabelULine *uline;
};
struct _GtkLabelULine
{
gint x1;
gint x2;
gint y;
GtkLabelULine *next;
};
static void gtk_label_class_init (GtkLabelClass *klass);
static void gtk_label_init (GtkLabel *label);
static void gtk_label_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_label_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_label_finalize (GtkObject *object);
static void gtk_label_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static gint gtk_label_expose (GtkWidget *widget,
GdkEventExpose *event);
static GtkLabelWord * gtk_label_word_alloc (void);
static GtkLabelULine * gtk_label_uline_alloc (void);
static void gtk_label_free_words (GtkLabel *label);
static void gtk_label_free_ulines (GtkLabelWord *word);
static gint gtk_label_split_text (GtkLabel * label);
static void gtk_label_finalize_lines (GtkLabel * label, gint line_width);
static void gtk_label_finalize_lines_wrap(GtkLabel * label, gint line_width);
static GtkMiscClass *parent_class = NULL;
static GMemChunk *word_chunk = 0;
static GtkLabelWord *free_words = 0;
static GMemChunk *uline_chunk = 0;
static GtkLabelULine *free_ulines = 0;
GtkType
gtk_label_get_type (void)
{
static GtkType label_type = 0;
if (!label_type)
{
static const GtkTypeInfo label_info =
{
"GtkLabel",
sizeof (GtkLabel),
sizeof (GtkLabelClass),
(GtkClassInitFunc) gtk_label_class_init,
(GtkObjectInitFunc) gtk_label_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
label_type = gtk_type_unique (gtk_misc_get_type (), &label_info);
gtk_type_set_chunk_alloc (label_type, 32);
}
return label_type;
}
static void
gtk_label_class_init (GtkLabelClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_misc_get_type ());
gtk_object_add_arg_type ("GtkLabel::label", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_LABEL);
gtk_object_add_arg_type ("GtkLabel::pattern", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_PATTERN);
gtk_object_add_arg_type ("GtkLabel::justify", GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFY);
object_class->set_arg = gtk_label_set_arg;
object_class->get_arg = gtk_label_get_arg;
object_class->finalize = gtk_label_finalize;
widget_class->size_request = gtk_label_size_request;
widget_class->expose_event = gtk_label_expose;
}
static void
gtk_label_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkLabel *label;
label = GTK_LABEL (object);
switch (arg_id)
{
case ARG_LABEL:
gtk_label_set_text (label, GTK_VALUE_STRING (*arg) ? GTK_VALUE_STRING (*arg) : "");
break;
case ARG_PATTERN:
gtk_label_set_pattern (label, GTK_VALUE_STRING (*arg));
break;
case ARG_JUSTIFY:
gtk_label_set_justify (label, GTK_VALUE_ENUM (*arg));
break;
default:
break;
}
}
static void
gtk_label_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkLabel *label;
label = GTK_LABEL (object);
switch (arg_id)
{
case ARG_LABEL:
GTK_VALUE_STRING (*arg) = g_strdup (label->label);
break;
case ARG_PATTERN:
GTK_VALUE_STRING (*arg) = g_strdup (label->pattern);
break;
case ARG_JUSTIFY:
GTK_VALUE_ENUM (*arg) = label->jtype;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_label_init (GtkLabel *label)
{
GTK_WIDGET_SET_FLAGS (label, GTK_NO_WINDOW);
label->label = NULL;
label->words = NULL;
label->max_width = 0;
label->jtype = GTK_JUSTIFY_CENTER;
label->pattern = NULL;
label->wrap = FALSE;
gtk_label_set_text (label, "");
}
GtkWidget*
gtk_label_new (const char *str)
{
GtkLabel *label;
g_return_val_if_fail (str != NULL, NULL);
label = gtk_type_new (gtk_label_get_type ());
gtk_label_set_text (label, str);
return GTK_WIDGET (label);
}
static void
gtk_label_set_text_internal (GtkLabel *label,
char *str,
GdkWChar *str_wc)
{
if (label->label)
g_free (label->label);
if (label->label_wc)
g_free (label->label_wc);
label->label = str;
label->label_wc = str_wc;
gtk_label_free_words (label);
if (GTK_WIDGET_VISIBLE (label))
{
if (GTK_WIDGET_MAPPED (label))
gtk_widget_queue_clear (GTK_WIDGET (label));
gtk_widget_queue_resize (GTK_WIDGET (label));
}
}
void
gtk_label_set_text (GtkLabel *label,
const char *str)
{
GdkWChar *str_wc;
gint len;
gint wc_len;
g_return_if_fail (label != NULL);
g_return_if_fail (GTK_IS_LABEL (label));
g_return_if_fail (str != NULL);
/* Convert text to wide characters */
len = strlen (str);
str_wc = g_new (GdkWChar, len + 1);
wc_len = gdk_mbstowcs (str_wc, str, len + 1);
str_wc[wc_len] = '\0';
gtk_label_set_text_internal (label, g_strdup (str), str_wc);
}
void
gtk_label_set_pattern (GtkLabel *label,
const gchar *pattern)
{
g_return_if_fail (label != NULL);
g_return_if_fail (GTK_IS_LABEL (label));
if (label->pattern)
g_free (label->pattern);
label->pattern = g_strdup (pattern);
if (GTK_WIDGET_VISIBLE (label))
{
if (GTK_WIDGET_MAPPED (label))
gtk_widget_queue_clear (GTK_WIDGET (label));
gtk_widget_queue_resize (GTK_WIDGET (label));
}
}
void
gtk_label_set_justify (GtkLabel *label, GtkJustification jtype)
{
g_return_if_fail (label != NULL);
g_return_if_fail (GTK_IS_LABEL (label));
if ((GtkJustification) label->jtype != jtype)
{
if ((label->jtype == GTK_JUSTIFY_FILL) ||
(jtype == GTK_JUSTIFY_FILL))
/* FIXME: think about this a little */
gtk_label_free_words (label);
label->jtype = jtype;
if (GTK_WIDGET_VISIBLE (label))
{
if (GTK_WIDGET_MAPPED (label))
gtk_widget_queue_clear (GTK_WIDGET (label));
gtk_widget_queue_resize (GTK_WIDGET (label));
}
}
}
void
gtk_label_set_line_wrap (GtkLabel *label, gboolean wrap)
{
g_return_if_fail (label != NULL);
g_return_if_fail (GTK_IS_LABEL (label));
if (label->wrap != wrap) {
if (GTK_WIDGET_VISIBLE (label))
{
if (GTK_WIDGET_MAPPED (label))
gtk_widget_queue_clear (GTK_WIDGET (label));
gtk_widget_queue_resize (GTK_WIDGET (label));
}
label->wrap = wrap;
}
}
void
gtk_label_get (GtkLabel *label,
char **str)
{
g_return_if_fail (label != NULL);
g_return_if_fail (GTK_IS_LABEL (label));
g_return_if_fail (str != NULL);
*str = label->label;
}
static void
gtk_label_finalize (GtkObject *object)
{
GtkLabel *label;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_LABEL (object));
label = GTK_LABEL (object);
g_free (label->label);
if (label->pattern)
g_free (label->pattern);
gtk_label_free_words (label);
(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}
static GtkLabelWord*
gtk_label_word_alloc ()
{
GtkLabelWord * word;
if (!word_chunk)
{
word_chunk = g_mem_chunk_new ("GtkLabelWord chunk",
sizeof (GtkLabelWord),
32 * sizeof (GtkLabelWord),
G_ALLOC_ONLY);
}
if (free_words)
{
word = free_words;
free_words = word->next;
}
else
{
word = g_mem_chunk_alloc (word_chunk);
}
word->next = 0;
word->uline = 0;
return word;
}
static void
gtk_label_free_words (GtkLabel *label)
{
GtkLabelWord * last;
if (label->words)
{
for (last = label->words; last->next != 0; last = last->next)
gtk_label_free_ulines (label->words);
last->next = free_words;
free_words = label->words;
label->words = NULL;
}
}
static GtkLabelULine*
gtk_label_uline_alloc (void)
{
GtkLabelULine * uline;
if (!uline_chunk)
{
uline_chunk = g_mem_chunk_new ("GtkLabelWord chunk",
sizeof (GtkLabelULine),
32 * sizeof (GtkLabelULine),
G_ALLOC_ONLY);
}
if (free_ulines)
{
uline = free_ulines;
free_ulines = uline->next;
}
else
{
uline = g_mem_chunk_alloc (uline_chunk);
}
uline->next = NULL;
return uline;
}
static void
gtk_label_free_ulines (GtkLabelWord *word)
{
GtkLabelULine *last;
if (word->uline)
{
for (last = word->uline; last->next != 0; last = last->next)
;
last->next = free_ulines;
free_ulines = word->uline;
word->uline = 0;
}
}
static gint
gtk_label_split_text (GtkLabel *label)
{
GtkLabelWord *word, **tailp;
gint space_width, line_width, max_line_width;
GdkWChar *str, *p;
g_return_val_if_fail (GTK_WIDGET (label)->style->font != NULL, 0);
gtk_label_free_words (label);
if (label->label == NULL)
return 0;
/* Split text at new-lines. */
space_width = gdk_string_width (GTK_WIDGET (label)->style->font, " ");
line_width = 0;
max_line_width = 0;
tailp = &label->words;
str = label->label_wc;
while (*str)
{
word = gtk_label_word_alloc ();
if (str == label->label_wc || str[-1] == '\n')
{
/* Paragraph break */
word->space = 0;
max_line_width = MAX (line_width, max_line_width);
line_width = 0;
}
else if (str[0] == ' ')
{
while (str[0] == ' ')
{
str++;
word->space += space_width;
}
}
else
{
/* Regular inter-word space */
word->space = space_width;
}
word->beginning = str;
word->length = 0;
p = word->beginning;
while (*p && *p != '\n')
{
word->length++;
p++;
}
word->width = gdk_text_width_wc (GTK_WIDGET (label)->style->font, str, word->length);
str += word->length;
if (*str)
str++;
line_width += word->space + word->width;
*tailp = word;
tailp = &word->next;
}
/* Add an empty word to represent an empty line
*/
if ((str == label->label_wc) || (str[-1] == '\n'))
{
word = gtk_label_word_alloc ();
word->space = 0;
word->beginning = str;
word->length = 0;
word->width = 0;
*tailp = word;
tailp = &word->next;
}
return MAX (line_width, max_line_width);
}
static gint
gtk_label_split_text_wrapped (GtkLabel *label)
{
/* this needs to handle white space better. */
GtkLabelWord *word, **tailp;
gint space_width, line_width, max_line_width;
GdkWChar *str, *p;
g_return_val_if_fail (GTK_WIDGET (label)->style->font != NULL, 0);
gtk_label_free_words (label);
if (label->label == NULL)
return 0;
/* Split text at new-lines. (Or at spaces in the case of paragraphs). */
space_width = gdk_string_width (GTK_WIDGET (label)->style->font, " ");
line_width = 0;
max_line_width = 0;
tailp = &label->words;
str = label->label_wc;
while (*str)
{
word = gtk_label_word_alloc ();
if (str == label->label_wc || str[-1] == '\n')
{
/* Paragraph break */
word->space = 0;
max_line_width = MAX (line_width, max_line_width);
line_width = 0;
}
else if (str[0] == ' ')
{
gint nspaces = 0;
while (str[0] == ' ')
{
nspaces++;
str++;
}
if (label->jtype == GTK_JUSTIFY_FILL)
word->space = (space_width * 3 + 1) / 2;
else
word->space = space_width * nspaces;
}
else
{
/* Regular inter-word space */
word->space = space_width;
}
word->beginning = str;
word->length = 0;
p = word->beginning;
while (*p && !gdk_iswspace (*p))
{
word->length++;
p++;
}
word->width = gdk_text_width_wc (GTK_WIDGET (label)->style->font, str, word->length);
str += word->length;
if (*str)
str++;
line_width += word->space + word->width;
*tailp = word;
tailp = &word->next;
}
return MAX (line_width, max_line_width);
}
/* gtk_label_pick_width
*
* Split paragraphs, trying to make each line at least min_width,
* and trying even harder to make each line no longer than max_width.
*
* Returns the length of the longest resulting line.
*
* (The reason we go to all this effort to pick a paragraph width is to
* try to avoid the lame look of a short paragraph with a
* short final line.)
*/
static gint
gtk_label_pick_width (GtkLabel *label,
gint min_width,
gint max_width)
{
GtkLabelWord *word;
gint width, line_width;
g_return_val_if_fail (label->wrap, min_width);
line_width = 0;
width = 0;
for (word = label->words; word; word = word->next)
{
if (word->space == 0
|| (line_width
&& (line_width >= min_width
|| line_width + word->width + word->space > max_width)))
{
/* New line */
width = MAX (width, line_width);
line_width = 0;
}
line_width += word->space + word->width;
}
return MAX (width, line_width);
}
/* Here, we finalize the lines.
* This is only for non-wrap labels. Wrapped labels
* use gtk_label_finalize_wrap instead.
*/
static void
gtk_label_finalize_lines (GtkLabel *label,
gint line_width)
{
GtkLabelWord *line;
gint y, baseline_skip, y_max;
gint i, j;
gchar *ptrn;
g_return_if_fail (!label->wrap);
ptrn = label->pattern;
y = 0;
baseline_skip = GTK_WIDGET (label)->style->font->ascent + GTK_WIDGET (label)->style->font->descent + 2;
for (line = label->words; line; line = line->next)
{
if (label->jtype == GTK_JUSTIFY_CENTER)
line->x = (line_width - line->width) / 2;
else if (label->jtype == GTK_JUSTIFY_RIGHT)
line->x = line_width - line->width;
else
line->x = 0;
line->y = y + GTK_WIDGET (label)->style->font->ascent + 1;
y_max = 0;
/* now we deal with the underline stuff; */
if (ptrn && ptrn[0] != '\0')
{
for (i = 0; i < line->length; i++)
{
if (ptrn[i] == '\0')
break;
else if (ptrn[i] == '_')
{
gint descent;
gint rbearing;
gint lbearing;
gint width;
gint offset;
GtkLabelULine *uline;
for (j = i + 1; j < line->length; j++)
{
if (ptrn[j] == '\0')
break;
else if (ptrn[j] == ' ')
break;
}
/* good. Now we have an underlined segment.
* let's measure it and record it.
*/
offset = gdk_text_width_wc (GTK_WIDGET (label)->style->font,
line->beginning,
i);
gdk_text_extents_wc (GTK_WIDGET (label)->style->font,
line->beginning+i,
j-i, &lbearing,
&rbearing, &width, NULL,
&descent);
y_max = MAX (descent + 2, y_max);
uline = gtk_label_uline_alloc ();
uline->x1 = offset + line->x + lbearing - 1;
uline->x2 = offset + line->x + rbearing;
uline->y = line->y + descent + 2;
uline->next = line->uline;
line->uline = uline;
i = j - 1;
}
}
if (strlen (ptrn) > line->length)
/* the + 1 is for line breaks. */
ptrn += line->length + 1;
else
ptrn = NULL;
}
y += (baseline_skip + y_max);
}
label->max_width = line_width;
GTK_WIDGET (label)->requisition.width = line_width + 2 * label->misc.xpad;
GTK_WIDGET (label)->requisition.height = y + 2 * label->misc.ypad;
}
/* this finalizes word-wrapped words */
static void
gtk_label_finalize_lines_wrap (GtkLabel *label,
gint line_width)
{
GtkLabelWord *word, *line, *next_line;
GtkWidget *widget;
gchar *ptrn;
gint x, y, space, extra_width, add_space, baseline_skip;
g_return_if_fail (label->wrap);
ptrn = label->pattern;
y = 0;
baseline_skip = GTK_WIDGET (label)->style->font->ascent + GTK_WIDGET (label)->style->font->descent + 1;
for (line = label->words; line != 0; line = next_line)
{
space = 0;
extra_width = line_width - line->width;
for (next_line = line->next; next_line; next_line = next_line->next)
{
if (next_line->space == 0)
break; /* New paragraph */
if (next_line->space + next_line->width > extra_width)
break;
extra_width -= next_line->space + next_line->width;
space += next_line->space;
}
line->x = 0;
line->y = y + GTK_WIDGET (label)->style->font->ascent + 1;
x = line->width;
add_space = 0;
for (word = line->next; word != next_line; word = word->next)
{
if (next_line && next_line->space)
{
/* Not last line of paragraph --- fill line if needed */
if (label->jtype == GTK_JUSTIFY_FILL) {
add_space = (extra_width * word->space + space / 2) / space;
extra_width -= add_space;
space -= word->space;
}
}
word->x = x + word->space + add_space;
word->y = line->y;
x = word->x + word->width;
}
y += (baseline_skip);
}
label->max_width = line_width;
widget = GTK_WIDGET (label);
widget->requisition.width = line_width + 2 * label->misc.xpad;
widget->requisition.height = y + 2 * label->misc.ypad + 1;
}
static void
gtk_label_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkLabel *label;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_LABEL (widget));
g_return_if_fail (requisition != NULL);
label = GTK_LABEL (widget);
/*
* There are a number of conditions which will necessitate re-filling
* our text:
*
* 1. text changed.
* 2. justification changed either from to to GTK_JUSTIFY_FILL.
* 3. font changed.
*
* These have been detected elsewhere, and label->words will be zero,
* if one of the above has occured.
*
* Additionally, though, if GTK_JUSTIFY_FILL, we need to re-fill if:
*
* 4. gtk_widget_set_usize has changed the requested width.
* 5. gtk_misc_set_padding has changed xpad.
* 6. maybe others?...
*
* Too much of a pain to detect all these case, so always re-fill. I
* don't think it's really that slow.
*/
if (label->wrap)
{
GtkWidgetAuxInfo *aux_info;
gint longest_paragraph;
longest_paragraph = gtk_label_split_text_wrapped (label);
aux_info = gtk_object_get_data (GTK_OBJECT (widget), "gtk-aux-info");
if (aux_info && aux_info->width > 0)
{
label->max_width = MAX(aux_info->width - 2 * label->misc.xpad, 1);
gtk_label_split_text_wrapped (label);
}
else
{
label->max_width = gdk_string_width (GTK_WIDGET (label)->style->font,
"This is a good enough length for any line to have.");
label->max_width = MIN (label->max_width, (gdk_screen_width () + 1) / 2);
label->max_width = MIN (label->max_width, longest_paragraph);
if (longest_paragraph > 0)
{
gint nlines, perfect_width;
nlines = (longest_paragraph + label->max_width - 1) / label->max_width;
perfect_width = (longest_paragraph + nlines - 1) / nlines;
label->max_width = gtk_label_pick_width (label,
perfect_width,
label->max_width);
}
}
gtk_label_finalize_lines_wrap (label, label->max_width);
}
else if (label->words == NULL)
{
label->max_width = gtk_label_split_text (label);
gtk_label_finalize_lines (label, label->max_width);
}
if (requisition != &widget->requisition)
*requisition = widget->requisition;
}
static void
gtk_label_paint_word (GtkLabel *label,
gint x,
gint y,
GtkLabelWord *word,
GdkRectangle *area)
{
GtkWidget *widget = GTK_WIDGET (label);
GtkLabelULine *uline;
gchar *tmp_str;
tmp_str = gdk_wcstombs (word->beginning);
gtk_paint_string (widget->style, widget->window, widget->state,
area, widget, "label",
x + word->x,
y + word->y,
tmp_str);
g_free (tmp_str);
for (uline = word->uline;uline;uline = uline->next)
gtk_paint_hline (widget->style, widget->window,
widget->state, area,
widget, "label",
x + uline->x1, x +uline->x2, y + uline->y);
}
static gint
gtk_label_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkLabel *label;
GtkMisc *misc;
GtkLabelWord *word;
gint x, y;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_LABEL (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
label = GTK_LABEL (widget);
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) &&
label->label && (*label->label != '\0'))
{
misc = GTK_MISC (widget);
/*
* GC Clipping
*/
gdk_gc_set_clip_rectangle (widget->style->white_gc, &event->area);
gdk_gc_set_clip_rectangle (widget->style->fg_gc[widget->state], &event->area);
x = widget->allocation.x + misc->xpad +
(widget->allocation.width - label->max_width)
* misc->xalign + 0.5;
y = (widget->allocation.y
+ (widget->allocation.height
- widget->requisition.height) * misc->yalign
+ misc->ypad + 0.5);
for (word = label->words; word; word = word->next)
{
gchar save = word->beginning[word->length];
word->beginning[word->length] = '\0';
gtk_label_paint_word (label, x, y, word, &event->area);
word->beginning[word->length] = save;
}
gdk_gc_set_clip_mask (widget->style->white_gc, NULL);
gdk_gc_set_clip_mask (widget->style->fg_gc[widget->state], NULL);
}
return TRUE;
}
guint
gtk_label_parse_uline (GtkLabel *label,
const gchar *string)
{
guint accel_key = GDK_VoidSymbol;
GdkWChar *p, *q, *string_wc;
gchar *r;
gchar *pattern;
gint length, wc_length;
gboolean underscore;
/* Convert text to wide characters */
length = strlen (string);
string_wc = g_new (GdkWChar, length + 1);
wc_length = gdk_mbstowcs (string_wc, string, length + 1);
string_wc[wc_length] = '\0';
pattern = g_new (gchar, length+1);
underscore = FALSE;
p = q = string_wc;
r = pattern;
while (*p)
{
if (underscore)
{
if (*p == '_')
*r++ = ' ';
else
{
*r++ = '_';
if (accel_key == GDK_VoidSymbol)
accel_key = gdk_keyval_to_lower (*p);
}
*q++ = *p;
underscore = FALSE;
}
else
{
if (*p == '_')
underscore = TRUE;
else
{
*q++ = *p;
*r++ = ' ';
}
}
p++;
}
*q = 0;
*r = 0;
gtk_label_set_text_internal (label, gdk_wcstombs (string_wc), string_wc);
gtk_label_set_pattern (label, pattern);
g_free (pattern);
return accel_key;
}
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