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added properties "fill-level", "show-fill-level" and

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2006-11-15  Michael Natterer  <mitch@imendio.com>

	* gtk/gtkrange.[ch]: added properties "fill-level",
	"show-fill-level" and "restrict-to-fill-level" and getters/setters
	for them. The "fill level" is an additional marker on the range's
	trough than can be e.g. used to indicate the amount of
	pre-buffering in a range showing the play position of streamed
	media. See the embedded API docs for details. Made GtkRangeLayout
	a GTypeInstance private struct and removed finalize()
	implementation. Fixes bug #349808

	* gtk/gtk.symbols: added the new symbols.
This commit is contained in:
Michael Natterer 2006-11-15 12:23:10 +00:00 committed by Michael Natterer
parent d5b35a5db9
commit eeff106d4e
4 changed files with 339 additions and 18 deletions
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13
ChangeLog
View File

@ -1,3 +1,16 @@
2006-11-15 Michael Natterer <mitch@imendio.com>
* gtk/gtkrange.[ch]: added properties "fill-level",
"show-fill-level" and "restrict-to-fill-level" and getters/setters
for them. The "fill level" is an additional marker on the range's
trough than can be e.g. used to indicate the amount of
pre-buffering in a range showing the play position of streamed
media. See the embedded API docs for details. Made GtkRangeLayout
a GTypeInstance private struct and removed finalize()
implementation. Fixes bug #349808
* gtk/gtk.symbols: added the new symbols.
2006-11-14 Behdad Esfahbod <behdad@gnome.org>
* configure.in: Make libtool magic robust. (#352795)

6
gtk/gtk.symbols
View File

@ -2955,17 +2955,23 @@ gtk_radio_tool_button_set_group
#if IN_HEADER(__GTK_RANGE_H__)
#if IN_FILE(__GTK_RANGE_C__)
gtk_range_get_adjustment
gtk_range_get_fill_level
gtk_range_get_inverted
gtk_range_get_lower_stepper_sensitivity
gtk_range_get_restrict_to_fill_level
gtk_range_get_show_fill_level
gtk_range_get_type G_GNUC_CONST
gtk_range_get_update_policy
gtk_range_get_upper_stepper_sensitivity
gtk_range_get_value
gtk_range_set_adjustment
gtk_range_set_fill_level
gtk_range_set_increments
gtk_range_set_inverted
gtk_range_set_lower_stepper_sensitivity
gtk_range_set_range
gtk_range_set_restrict_to_fill_level
gtk_range_set_show_fill_level
gtk_range_set_update_policy
gtk_range_set_upper_stepper_sensitivity
gtk_range_set_value

326
gtk/gtkrange.c
View File

@ -46,7 +46,10 @@ enum {
PROP_ADJUSTMENT,
PROP_INVERTED,
PROP_LOWER_STEPPER_SENSITIVITY,
PROP_UPPER_STEPPER_SENSITIVITY
PROP_UPPER_STEPPER_SENSITIVITY,
PROP_SHOW_FILL_LEVEL,
PROP_RESTRICT_TO_FILL_LEVEL,
PROP_FILL_LEVEL
};
enum {
@ -68,6 +71,8 @@ typedef enum {
MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
} MouseLocation;
#define GTK_RANGE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RANGE, GtkRangeLayout))
struct _GtkRangeLayout
{
/* These are in widget->window coordinates */
@ -96,8 +101,14 @@ struct _GtkRangeLayout
guint lower_sensitive : 1;
guint upper_sensitive : 1;
/* Fill level */
guint show_fill_level : 1;
guint restrict_to_fill_level : 1;
GtkSensitivityType lower_sensitivity;
GtkSensitivityType upper_sensitivity;
gdouble fill_level;
};
@ -110,7 +121,6 @@ static void gtk_range_get_property (GObject *object,
GValue *value,
GParamSpec *pspec);
static void gtk_range_destroy (GtkObject *object);
static void gtk_range_finalize (GObject *object);
static void gtk_range_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_range_size_allocate (GtkWidget *widget,
@ -214,7 +224,6 @@ gtk_range_class_init (GtkRangeClass *class)
gobject_class->set_property = gtk_range_set_property;
gobject_class->get_property = gtk_range_get_property;
gobject_class->finalize = gtk_range_finalize;
object_class->destroy = gtk_range_destroy;
widget_class->size_request = gtk_range_size_request;
@ -351,6 +360,58 @@ gtk_range_class_init (GtkRangeClass *class)
GTK_SENSITIVITY_AUTO,
GTK_PARAM_READWRITE));
/**
* GtkRange:show-fill-level:
*
* The show-fill-level property controls wether fill level indicator
* graphics are displayed on the trough. See
* gtk_range_set_show_fill_level().
*
* Since: 2.12
**/
g_object_class_install_property (gobject_class,
PROP_SHOW_FILL_LEVEL,
g_param_spec_boolean ("show-fill-level",
P_("Show Fill Level"),
P_("Whether to display a fill level indicator graphics on trough."),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkRange:restrict-to-fill-level:
*
* The restrict-to-fill-level proeprty controls whether slider
* movement is restricted to an upper boundary set by the
* fill-level. See gtk_range_set_restrict_to_fill_level().
*
* Since: 2.12
**/
g_object_class_install_property (gobject_class,
PROP_RESTRICT_TO_FILL_LEVEL,
g_param_spec_boolean ("restrict-to-fill-level",
P_("Restrict to Fill Level"),
P_("Whether to restrict the upper boundary to the fill level."),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkRange:fill-level:
*
* The fill level (e.g. prebuffering of a network stream).
* See gtk_range_set_fill_level().
*
* Since: 2.12
**/
g_object_class_install_property (gobject_class,
PROP_FILL_LEVEL,
g_param_spec_double ("fill-level",
P_("Fill Level"),
P_("The fill level."),
-G_MAXDOUBLE,
G_MAXDOUBLE,
G_MAXDOUBLE,
GTK_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("slider-width",
P_("Slider Width"),
@ -443,6 +504,8 @@ gtk_range_class_init (GtkRangeClass *class)
P_("Whether to draw trought for full length of range or exclude the steppers and spacing"),
TRUE,
GTK_PARAM_READABLE));
g_type_class_add_private (class, sizeof (GtkRangeLayout));
}
static void
@ -472,6 +535,15 @@ gtk_range_set_property (GObject *object,
case PROP_UPPER_STEPPER_SENSITIVITY:
gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
break;
case PROP_SHOW_FILL_LEVEL:
gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
break;
case PROP_RESTRICT_TO_FILL_LEVEL:
gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
break;
case PROP_FILL_LEVEL:
gtk_range_set_fill_level (range, g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -505,6 +577,15 @@ gtk_range_get_property (GObject *object,
case PROP_UPPER_STEPPER_SENSITIVITY:
g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
break;
case PROP_SHOW_FILL_LEVEL:
g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
break;
case PROP_RESTRICT_TO_FILL_LEVEL:
g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
break;
case PROP_FILL_LEVEL:
g_value_set_double (value, gtk_range_get_fill_level (range));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -527,7 +608,7 @@ gtk_range_init (GtkRange *range)
range->has_stepper_d = FALSE;
range->need_recalc = TRUE;
range->round_digits = -1;
range->layout = g_new0 (GtkRangeLayout, 1);
range->layout = GTK_RANGE_GET_PRIVATE (range);
range->layout->mouse_location = MOUSE_OUTSIDE;
range->layout->mouse_x = -1;
range->layout->mouse_y = -1;
@ -537,6 +618,9 @@ gtk_range_init (GtkRange *range)
range->layout->upper_sensitivity = GTK_SENSITIVITY_AUTO;
range->layout->lower_sensitive = TRUE;
range->layout->upper_sensitive = TRUE;
range->layout->show_fill_level = FALSE;
range->layout->restrict_to_fill_level = TRUE;
range->layout->fill_level = G_MAXDOUBLE;
range->timer = NULL;
}
@ -844,8 +928,13 @@ gtk_range_set_range (GtkRange *range,
range->adjustment->lower = min;
range->adjustment->upper = max;
value = CLAMP (range->adjustment->value,
range->adjustment->lower,
value = range->adjustment->value;
if (range->layout->restrict_to_fill_level)
value = MIN (value, MAX (range->adjustment->lower,
range->layout->fill_level));
value = CLAMP (value, range->adjustment->lower,
(range->adjustment->upper - range->adjustment->page_size));
gtk_adjustment_set_value (range->adjustment, value);
@ -868,7 +957,11 @@ gtk_range_set_value (GtkRange *range,
gdouble value)
{
g_return_if_fail (GTK_IS_RANGE (range));
if (range->layout->restrict_to_fill_level)
value = MIN (value, MAX (range->adjustment->lower,
range->layout->fill_level));
value = CLAMP (value, range->adjustment->lower,
(range->adjustment->upper - range->adjustment->page_size));
@ -891,6 +984,153 @@ gtk_range_get_value (GtkRange *range)
return range->adjustment->value;
}
/**
* gtk_range_set_show_fill_level:
* @range: A #GtkRange
* @show_fill_level: Whether a fill level indicator graphics is shown.
*
* Sets whether a graphical fill level is show on the trough. See
* gtk_range_set_fill_level() for a general description of the fill
* level concept.
*
* Since: 2.12
**/
void
gtk_range_set_show_fill_level (GtkRange *range,
gboolean show_fill_level)
{
g_return_if_fail (GTK_IS_RANGE (range));
show_fill_level = show_fill_level ? TRUE : FALSE;
if (show_fill_level != range->layout->show_fill_level)
{
range->layout->show_fill_level = show_fill_level;
g_object_notify (G_OBJECT (range), "show-fill-level");
gtk_widget_queue_draw (GTK_WIDGET (range));
}
}
/**
* gtk_range_get_show_fill_level:
* @range: A #GtkRange
*
* Return value: Whether GtkRange displays a fill level graphics.
*
* Since: 2.12
**/
gboolean
gtk_range_get_show_fill_level (GtkRange *range)
{
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
return range->layout->show_fill_level;
}
/**
* gtk_range_set_restrict_to_fill_level:
* @range: A #GtkRange
* @restrict_to_fill_level: Whether the fill level restricts slider movement.
*
* Sets whether the slider is restricted to the fill level. See
* gtk_range_set_fill_level() for a general description of the fill
* level concept.
*
* Since: 2.12
**/
void
gtk_range_set_restrict_to_fill_level (GtkRange *range,
gboolean restrict_to_fill_level)
{
g_return_if_fail (GTK_IS_RANGE (range));
restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
if (restrict_to_fill_level != range->layout->restrict_to_fill_level)
{
range->layout->restrict_to_fill_level = restrict_to_fill_level;
g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
gtk_range_set_value (range, gtk_range_get_value (range));
}
}
/**
* gtk_range_get_restrict_to_fill_level:
* @range: A #GtkRange
*
* Return value: Whether GtkRange is restricted to the fill level.
*
* Since: 2.12
**/
gboolean
gtk_range_get_restrict_to_fill_level (GtkRange *range)
{
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
return range->layout->restrict_to_fill_level;
}
/**
* gtk_range_set_fill_level:
* @range: A #GtkRange
* @positon: The new position of the fill level indicator
*
* Set the new position of the fill level indicator.
*
* The "fill level" is probably best described by its most prominent
* use case, which is an indicator for the amount of pre-buffering in
* a streaming media player. In that use case, the value of the range
* would indicate the current play position, and the fill level would
* be the position up to which the file/stream has been downloaded.
*
* This amount of prebuffering can be displayed on the range's trough
* and is themeable separately from the trough. To enable fill level
* display, use gtk_range_set_show_fill_level(). The range defaults
* to not showing the fill level.
*
* Additionally, it's possible to restrict the range's slider position
* to values which are smaller than the fill level. This is controller
* by gtk_range_set_restrict_to_fill_level() and is by default
* enabled.
*
* Since: 2.12
**/
void
gtk_range_set_fill_level (GtkRange *range,
gdouble fill_level)
{
g_return_if_fail (GTK_IS_RANGE (range));
if (fill_level != range->layout->fill_level)
{
range->layout->fill_level = fill_level;
g_object_notify (G_OBJECT (range), "fill-level");
if (range->layout->show_fill_level)
gtk_widget_queue_draw (GTK_WIDGET (range));
if (range->layout->restrict_to_fill_level)
gtk_range_set_value (range, gtk_range_get_value (range));
}
}
/**
* gtk_range_get_fill_level:
* @range : A #GtkRange
*
* Return value: The current position of the fill level indicator.
*
* Since: 2.12
**/
gdouble
gtk_range_get_fill_level (GtkRange *range)
{
g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
return range->layout->fill_level;
}
static gboolean
should_invert (GtkRange *range)
{
@ -903,16 +1143,6 @@ should_invert (GtkRange *range)
return range->inverted;
}
static void
gtk_range_finalize (GObject *object)
{
GtkRange *range = GTK_RANGE (object);
g_free (range->layout);
(* G_OBJECT_CLASS (gtk_range_parent_class)->finalize) (object);
}
static void
gtk_range_destroy (GtkObject *object)
{
@ -1314,6 +1544,64 @@ gtk_range_expose (GtkWidget *widget,
height - trough_change_pos_y);
}
if (range->layout->show_fill_level &&
range->adjustment->upper - range->adjustment->page_size -
range->adjustment->lower != 0)
{
gdouble fill_level = range->layout->fill_level;
gint fill_x = x;
gint fill_y = y;
gint fill_width = width;
gint fill_height = height;
gchar *fill_detail;
fill_level = CLAMP (fill_level, range->adjustment->lower,
range->adjustment->upper -
range->adjustment->page_size);
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
{
fill_x = widget->allocation.x + range->layout->trough.x;
fill_width = (range->layout->slider.width +
(fill_level - range->adjustment->lower) /
(range->adjustment->upper -
range->adjustment->lower -
range->adjustment->page_size) *
(range->layout->trough.width -
range->layout->slider.width));
if (should_invert (range))
fill_x += range->layout->trough.width - fill_width;
}
else
{
fill_y = widget->allocation.y + range->layout->trough.y;
fill_height = (range->layout->slider.height +
(fill_level - range->adjustment->lower) /
(range->adjustment->upper -
range->adjustment->lower -
range->adjustment->page_size) *
(range->layout->trough.height -
range->layout->slider.height));
if (should_invert (range))
fill_y += range->layout->trough.height - fill_height;
}
if (fill_level < range->adjustment->upper - range->adjustment->page_size)
fill_detail = "trough-fill-level-full";
else
fill_detail = "trough-fill-level";
gtk_paint_box (widget->style,
widget->window,
sensitive ? GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE,
GTK_SHADOW_OUT,
&area, GTK_WIDGET (range), fill_detail,
fill_x, fill_y,
fill_width, fill_height);
}
if (sensitive &&
GTK_WIDGET_HAS_FOCUS (range))
gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
@ -2901,6 +3189,10 @@ gtk_range_real_change_value (GtkRange *range,
/* potentially adjust the bounds _before we clamp */
g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
if (range->layout->restrict_to_fill_level)
value = MIN (value, MAX (range->adjustment->lower,
range->layout->fill_level));
value = CLAMP (value, range->adjustment->lower,
(range->adjustment->upper - range->adjustment->page_size));

12
gtk/gtkrange.h
View File

@ -160,7 +160,17 @@ void gtk_range_set_value (GtkRange *range
gdouble value);
gdouble gtk_range_get_value (GtkRange *range);
gdouble _gtk_range_get_wheel_delta (GtkRange *range,
void gtk_range_set_show_fill_level (GtkRange *range,
gboolean show_fill_level);
gboolean gtk_range_get_show_fill_level (GtkRange *range);
void gtk_range_set_restrict_to_fill_level (GtkRange *range,
gboolean restrict_to_fill_level);
gboolean gtk_range_get_restrict_to_fill_level (GtkRange *range);
void gtk_range_set_fill_level (GtkRange *range,
gdouble fill_level);
gdouble gtk_range_get_fill_level (GtkRange *range);
gdouble _gtk_range_get_wheel_delta (GtkRange *range,
GdkScrollDirection direction);