static void
gail_scale_get_character_extents (AtkText *text,
gint offset,
gint *x,
gint *y,
gint *width,
gint *height,
AtkCoordType coords)
{
GtkWidget *widget;
GtkScale *scale;
PangoRectangle char_rect;
PangoLayout *layout;
gint index, x_layout, y_layout;
const gchar *scale_text;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return;
scale = GTK_SCALE (widget);
layout = gtk_scale_get_layout (scale);
if (!layout)
return;
scale_text = pango_layout_get_text (layout);
if (!scale_text)
return;
index = g_utf8_offset_to_pointer (scale_text, offset) - scale_text;
gtk_scale_get_layout_offsets (scale, &x_layout, &y_layout);
pango_layout_index_to_pos (layout, index, &char_rect);
gail_misc_get_extents_from_pango_rectangle (widget, &char_rect,
x_layout, y_layout, x, y, width, height, coords);
}
static gunichar
gail_scale_get_character_at_offset (AtkText *text,
gint offset)
{
GtkWidget *widget;
GtkScale *scale;
PangoLayout *layout;
const gchar *string;
gchar *index;
gunichar c;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return '\0';
scale = GTK_SCALE (widget);
layout = gtk_scale_get_layout (scale);
if (!layout)
return '\0';
string = pango_layout_get_text (layout);
if (offset >= g_utf8_strlen (string, -1))
c = '\0';
else
{
index = g_utf8_offset_to_pointer (string, offset);
c = g_utf8_get_char (index);
}
return c;
}
static gchar*
gail_scale_get_text_after_offset (AtkText *text,
gint offset,
AtkTextBoundary boundary_type,
gint *start_offset,
gint *end_offset)
{
GtkWidget *widget;
GailScale *scale;
PangoLayout *layout;
gchar *txt;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return NULL;
scale = GAIL_SCALE (text);
layout = gtk_scale_get_layout (GTK_SCALE (widget));
if (layout)
{
txt = gail_text_util_get_text (scale->textutil,
layout, GAIL_AFTER_OFFSET,
boundary_type, offset, start_offset, end_offset);
}
else
txt = NULL;
return txt;
}
static void
gail_scale_notify (GObject *obj,
GParamSpec *pspec)
{
GailScale *scale = GAIL_SCALE (obj);
if (strcmp (pspec->name, "accessible-value") == 0)
{
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget)
{
GtkScale *gtk_scale;
PangoLayout *layout;
const gchar *txt;
gtk_scale = GTK_SCALE (widget);
layout = gtk_scale_get_layout (gtk_scale);
if (layout)
{
txt = pango_layout_get_text (layout);
if (txt)
{
g_signal_emit_by_name (obj, "text_changed::delete", 0,
gtk_text_buffer_get_char_count (scale->textutil->buffer));
gail_text_util_text_setup (scale->textutil, txt);
g_signal_emit_by_name (obj, "text_changed::insert", 0,
g_utf8_strlen (txt, -1));
}
}
}
}
G_OBJECT_CLASS (gail_scale_parent_class)->notify (obj, pspec);
}
static const gchar *
gtk_scale_accessible_get_description (AtkObject *object)
{
GtkWidget *widget;
PangoLayout *layout;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (object));
if (widget == NULL)
return NULL;
layout = gtk_scale_get_layout (GTK_SCALE (widget));
if (layout)
return pango_layout_get_text (layout);
return ATK_OBJECT_CLASS (_gtk_scale_accessible_parent_class)->get_description (object);
}
static AtkAttributeSet*
gail_scale_get_run_attributes (AtkText *text,
gint offset,
gint *start_offset,
gint *end_offset)
{
GtkWidget *widget;
GtkScale *scale;
AtkAttributeSet *at_set = NULL;
GtkTextDirection dir;
PangoLayout *layout;
const gchar *scale_text;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return NULL;
scale = GTK_SCALE (widget);
layout = gtk_scale_get_layout (scale);
if (!layout)
return at_set;
scale_text = pango_layout_get_text (layout);
if (!scale_text)
return at_set;
dir = gtk_widget_get_direction (widget);
if (dir == GTK_TEXT_DIR_RTL)
{
at_set = gail_misc_add_attribute (at_set,
ATK_TEXT_ATTR_DIRECTION,
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
}
at_set = gail_misc_layout_get_run_attributes (at_set,
layout,
(gchar *)scale_text,
offset,
start_offset,
end_offset);
return at_set;
}
static AtkAttributeSet*
gail_scale_get_default_attributes (AtkText *text)
{
GtkWidget *widget;
AtkAttributeSet *at_set = NULL;
PangoLayout *layout;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return NULL;
layout = gtk_scale_get_layout (GTK_SCALE (widget));
if (layout)
{
at_set = gail_misc_get_default_attributes (at_set,
layout,
widget);
}
return at_set;
}
static gint
gail_scale_get_offset_at_point (AtkText *text,
gint x,
gint y,
AtkCoordType coords)
{
GtkWidget *widget;
GtkScale *scale;
PangoLayout *layout;
gint index, x_layout, y_layout;
const gchar *scale_text;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
if (widget == NULL)
/* State is defunct */
return -1;
scale = GTK_SCALE (widget);
layout = gtk_scale_get_layout (scale);
if (!layout)
return -1;
scale_text = pango_layout_get_text (layout);
if (!scale_text)
return -1;
gtk_scale_get_layout_offsets (scale, &x_layout, &y_layout);
index = gail_misc_get_index_at_point_in_layout (widget,
layout,
x_layout, y_layout, x, y, coords);
if (index == -1)
{
if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
index = g_utf8_strlen (scale_text, -1);
}
else
index = g_utf8_pointer_to_offset (scale_text, scale_text + index);
return index;
}
static void
gail_scale_real_initialize (AtkObject *obj,
gpointer data)
{
GailScale *gail_scale;
const gchar *txt;
PangoLayout *layout;
ATK_OBJECT_CLASS (gail_scale_parent_class)->initialize (obj, data);
gail_scale = GAIL_SCALE (obj);
gail_scale->textutil = gail_text_util_new ();
layout = gtk_scale_get_layout (GTK_SCALE (data));
if (layout)
{
txt = pango_layout_get_text (layout);
if (txt)
{
gail_text_util_text_setup (gail_scale->textutil, txt);
}
}
}
