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label: add the "show-tooltip" property 

Add the "show-tooltip" property to show a tooltip when the text is too long
to fit in the current allocation.
This commit is contained in:
Thomas Wood 2011-10-11 14:01:16 +01:00
parent 192ac9ea0a
commit 8654baa739
2 changed files with 92 additions and 1 deletions
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90
mx/mx-label.c
View File

@ -59,7 +59,8 @@ enum
PROP_X_ALIGN,
PROP_Y_ALIGN,
PROP_LINE_WRAP,
PROP_FADE_OUT
PROP_FADE_OUT,
PROP_SHOW_TOOLTIP
};
#define MX_LABEL_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MX_TYPE_LABEL, MxLabelPrivate))
@ -79,6 +80,7 @@ struct _MxLabelPrivate
guint fade_out : 1;
guint label_should_fade : 1;
guint show_tooltip : 1;
};
G_DEFINE_TYPE (MxLabel, mx_label, MX_TYPE_WIDGET);
@ -117,6 +119,10 @@ mx_label_set_property (GObject *gobject,
mx_label_set_fade_out (label, g_value_get_boolean (value));
break;
case PROP_SHOW_TOOLTIP:
mx_label_set_show_tooltip (label, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -163,6 +169,10 @@ mx_label_get_property (GObject *gobject,
g_value_set_boolean (value, priv->fade_out);
break;
case PROP_SHOW_TOOLTIP:
g_value_set_boolean (value, priv->show_tooltip);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -288,6 +298,21 @@ mx_label_allocate (ClutterActor *actor,
/* Allocate the label */
clutter_actor_allocate (priv->label, &child_box, flags);
if (priv->show_tooltip)
{
PangoLayout *layout;
const gchar *text;
layout = clutter_text_get_layout (CLUTTER_TEXT (priv->label));
if (pango_layout_is_ellipsized (layout))
text = clutter_text_get_text (CLUTTER_TEXT (priv->label));
else
text = NULL;
mx_widget_set_tooltip_text (MX_WIDGET (actor), text);
}
/* Animate in/out the faded end of the label */
if (label_did_fade != priv->label_should_fade)
{
@ -458,6 +483,23 @@ mx_label_class_init (MxLabelClass *klass)
FALSE,
MX_PARAM_READWRITE);
g_object_class_install_property (gobject_class, PROP_FADE_OUT, pspec);
/**
* MxLabel:show-tooltip:
*
* Show a tooltip when there is not enough space to display the text. If set
* to %TRUE, this will also cause the #ClutterActor:reactive property to be
* enabled.
*
* Since: 1.4
*/
pspec = g_param_spec_boolean ("show-tooltip",
"Show Tooltip",
"Show a tooltip when there is not enough space"
" to display the text.",
FALSE,
MX_PARAM_READWRITE);
g_object_class_install_property (gobject_class, PROP_SHOW_TOOLTIP, pspec);
}
static void
@ -883,3 +925,49 @@ mx_label_get_fade_out (MxLabel *label)
return label->priv->fade_out;
}
/**
* mx_label_set_show_tooltip:
* @label: A #MxLabel
* @show_tooltip: %TRUE if the tooltip should be shown
*
* Set the value of the #MxLabel:show-tooltip property
*
* Since: 1.4
*/
void
mx_label_set_show_tooltip (MxLabel *label,
gboolean show_tooltip)
{
MxLabelPrivate *priv;
g_return_if_fail (MX_IS_LABEL (label));
priv = label->priv;
if (priv->show_tooltip != show_tooltip)
{
priv->show_tooltip = show_tooltip;
clutter_actor_queue_relayout (CLUTTER_ACTOR (label));
g_object_notify (G_OBJECT (label), "show-tooltip");
}
}
/**
* mx_label_get_show_tooltip:
* @label: A #MxLabel
*
* Returns the current value of the #MxLabel:show-tooltip property.
*
* Returns: %TRUE if the #MxLabel:show-tooltip property is enabled
*
* Since: 1.4
*/
gboolean
mx_label_get_show_tooltip (MxLabel *label)
{
g_return_val_if_fail (MX_IS_LABEL (label), FALSE);
return label->priv->show_tooltip;
}

3
mx/mx-label.h
View File

@ -96,6 +96,9 @@ void mx_label_set_line_wrap (MxLabel *label,
void mx_label_set_fade_out (MxLabel *label, gboolean fade);
gboolean mx_label_get_fade_out (MxLabel *label);
void mx_label_set_show_tooltip (MxLabel *label, gboolean show_tooltip);
gboolean mx_label_get_show_tooltip (MxLabel *label);
G_END_DECLS
#endif /* __MX_LABEL_H__ */