| Top |
| CtkAdjustment * | adjustment | Read / Write / Construct |
| double | fill-level | Read / Write |
| gboolean | inverted | Read / Write |
| CtkSensitivityType | lower-stepper-sensitivity | Read / Write |
| gboolean | restrict-to-fill-level | Read / Write |
| int | round-digits | Read / Write |
| gboolean | show-fill-level | Read / Write |
| CtkSensitivityType | upper-stepper-sensitivity | Read / Write |
| void | adjust-bounds | Run Last |
| gboolean | change-value | Run Last |
| void | move-slider | Action |
| void | value-changed | Run Last |
GObject
╰── GInitiallyUnowned
╰── CtkWidget
╰── CtkRange
├── CtkScale
╰── CtkScrollbar
CtkRange is the common base class for widgets which visualize an adjustment, e.g CtkScale or CtkScrollbar.
Apart from signals for monitoring the parameters of the adjustment,
CtkRange provides properties and methods for influencing the sensitivity
of the “steppers”. It also provides properties and methods for setting a
“fill level” on range widgets. See ctk_range_set_fill_level().
gdouble
ctk_range_get_fill_level (CtkRange *range);
Gets the current position of the fill level indicator.
Since: 2.12
gboolean
ctk_range_get_restrict_to_fill_level (CtkRange *range);
Gets whether the range is restricted to the fill level.
Since: 2.12
gboolean
ctk_range_get_show_fill_level (CtkRange *range);
Gets whether the range displays the fill level graphically.
Since: 2.12
void ctk_range_set_fill_level (CtkRange *range,gdouble fill_level);
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 ctk_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 ctk_range_set_restrict_to_fill_level() and is by default
enabled.
Since: 2.12
void ctk_range_set_restrict_to_fill_level (CtkRange *range,gboolean restrict_to_fill_level);
Sets whether the slider is restricted to the fill level. See
ctk_range_set_fill_level() for a general description of the fill
level concept.
range |
A CtkRange |
|
restrict_to_fill_level |
Whether the fill level restricts slider movement. |
Since: 2.12
void ctk_range_set_show_fill_level (CtkRange *range,gboolean show_fill_level);
Sets whether a graphical fill level is show on the trough. See
ctk_range_set_fill_level() for a general description of the fill
level concept.
Since: 2.12
CtkAdjustment *
ctk_range_get_adjustment (CtkRange *range);
Get the CtkAdjustment which is the “model” object for CtkRange.
See ctk_range_set_adjustment() for details.
The return value does not have a reference added, so should not
be unreferenced.
void ctk_range_set_adjustment (CtkRange *range,CtkAdjustment *adjustment);
Sets the adjustment to be used as the “model” object for this range widget. The adjustment indicates the current range value, the minimum and maximum range values, the step/page increments used for keybindings and scrolling, and the page size. The page size is normally 0 for CtkScale and nonzero for CtkScrollbar, and indicates the size of the visible area of the widget being scrolled. The page size affects the size of the scrollbar slider.
gboolean
ctk_range_get_inverted (CtkRange *range);
Gets the value set by ctk_range_set_inverted().
void ctk_range_set_inverted (CtkRange *range,gboolean setting);
Ranges normally move from lower to higher values as the slider moves from top to bottom or left to right. Inverted ranges have higher values at the top or on the right rather than on the bottom or left.
gdouble
ctk_range_get_value (CtkRange *range);
Gets the current value of the range.
void ctk_range_set_value (CtkRange *range,gdouble value);
Sets the current value of the range; if the value is outside the minimum or maximum range values, it will be clamped to fit inside them. The range emits the “value-changed” signal if the value changes.
void ctk_range_set_increments (CtkRange *range,gdouble step,gdouble page);
Sets the step and page sizes for the range. The step size is used when the user clicks the CtkScrollbar arrows or moves CtkScale via arrow keys. The page size is used for example when moving via Page Up or Page Down keys.
void ctk_range_set_range (CtkRange *range,gdouble min,gdouble max);
Sets the allowable values in the CtkRange, and clamps the range
value to be between min
and max
. (If the range has a non-zero
page size, it is clamped between min
and max
- page-size.)
gint
ctk_range_get_round_digits (CtkRange *range);
Gets the number of digits to round the value to when it changes. See “change-value”.
Since: 2.24
void ctk_range_set_round_digits (CtkRange *range,gint round_digits);
Sets the number of digits to round the value to when it changes. See “change-value”.
Since: 2.24
void ctk_range_set_lower_stepper_sensitivity (CtkRange *range,CtkSensitivityType sensitivity);
Sets the sensitivity policy for the stepper that points to the 'lower' end of the CtkRange’s adjustment.
Since: 2.10
CtkSensitivityType
ctk_range_get_lower_stepper_sensitivity
(CtkRange *range);
Gets the sensitivity policy for the stepper that points to the 'lower' end of the CtkRange’s adjustment.
Since: 2.10
void ctk_range_set_upper_stepper_sensitivity (CtkRange *range,CtkSensitivityType sensitivity);
Sets the sensitivity policy for the stepper that points to the 'upper' end of the CtkRange’s adjustment.
Since: 2.10
CtkSensitivityType
ctk_range_get_upper_stepper_sensitivity
(CtkRange *range);
Gets the sensitivity policy for the stepper that points to the 'upper' end of the CtkRange’s adjustment.
Since: 2.10
gboolean
ctk_range_get_flippable (CtkRange *range);
Gets the value set by ctk_range_set_flippable().
Since: 2.18
void ctk_range_set_flippable (CtkRange *range,gboolean flippable);
If a range is flippable, it will switch its direction if it is
horizontal and its direction is CTK_TEXT_DIR_RTL.
See ctk_widget_get_direction().
Since: 2.18
gint
ctk_range_get_min_slider_size (CtkRange *range);
ctk_range_get_min_slider_size has been deprecated since version 3.20 and should not be used in newly-written code.
Use the min-height/min-width CSS properties on the slider node.
This function is useful mainly for CtkRange subclasses.
See ctk_range_set_min_slider_size().
Since: 2.20
void ctk_range_get_range_rect (CtkRange *range,CdkRectangle *range_rect);
This function returns the area that contains the range’s trough and its steppers, in widget->window coordinates.
This function is useful mainly for CtkRange subclasses.
Since: 2.20
void ctk_range_get_slider_range (CtkRange *range,gint *slider_start,gint *slider_end);
This function returns sliders range along the long dimension, in widget->window coordinates.
This function is useful mainly for CtkRange subclasses.
range |
a CtkRange |
|
slider_start |
return location for the slider's
start, or |
[out][allow-none] |
slider_end |
return location for the slider's
end, or |
[out][allow-none] |
Since: 2.20
gboolean
ctk_range_get_slider_size_fixed (CtkRange *range);
This function is useful mainly for CtkRange subclasses.
See ctk_range_set_slider_size_fixed().
Since: 2.20
void ctk_range_set_min_slider_size (CtkRange *range,gint min_size);
ctk_range_set_min_slider_size has been deprecated since version 3.20 and should not be used in newly-written code.
Use the min-height/min-width CSS properties on the slider node.
Sets the minimum size of the range’s slider.
This function is useful mainly for CtkRange subclasses.
Since: 2.20
“adjustment” property“adjustment” CtkAdjustment *
The CtkAdjustment that contains the current value of this range object.
Owner: CtkRange
Flags: Read / Write / Construct
“fill-level” property “fill-level” double
The fill level (e.g. prebuffering of a network stream).
See ctk_range_set_fill_level().
Owner: CtkRange
Flags: Read / Write
Default value: 1.79769e+308
Since: 2.12
“inverted” property “inverted” gboolean
Invert direction slider moves to increase range value.
Owner: CtkRange
Flags: Read / Write
Default value: FALSE
“lower-stepper-sensitivity” property“lower-stepper-sensitivity” CtkSensitivityType
The sensitivity policy for the stepper that points to the adjustment's lower side.
Owner: CtkRange
Flags: Read / Write
Default value: CTK_SENSITIVITY_AUTO
“restrict-to-fill-level” property “restrict-to-fill-level” gboolean
The restrict-to-fill-level property controls whether slider
movement is restricted to an upper boundary set by the
fill level. See ctk_range_set_restrict_to_fill_level().
Owner: CtkRange
Flags: Read / Write
Default value: TRUE
Since: 2.12
“round-digits” property “round-digits” int
The number of digits to round the value to when it changes, or -1. See “change-value”.
Owner: CtkRange
Flags: Read / Write
Allowed values: >= -1
Default value: -1
Since: 2.24
“show-fill-level” property “show-fill-level” gboolean
The show-fill-level property controls whether fill level indicator
graphics are displayed on the trough. See
ctk_range_set_show_fill_level().
Owner: CtkRange
Flags: Read / Write
Default value: FALSE
Since: 2.12
“upper-stepper-sensitivity” property“upper-stepper-sensitivity” CtkSensitivityType
The sensitivity policy for the stepper that points to the adjustment's upper side.
Owner: CtkRange
Flags: Read / Write
Default value: CTK_SENSITIVITY_AUTO
“adjust-bounds” signalvoid user_function (CtkRange *range, double value, gpointer user_data)
Emitted before clamping a value, to give the application a chance to adjust the bounds.
range |
the CtkRange that received the signal |
|
value |
the value before we clamp |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
“change-value” signalgboolean user_function (CtkRange *range, CtkScrollType scroll, double value, gpointer user_data)
The “change-value” signal is emitted when a scroll action is
performed on a range. It allows an application to determine the
type of scroll event that occurred and the resultant new value.
The application can handle the event itself and return TRUE to
prevent further processing. Or, by returning FALSE, it can pass
the event to other handlers until the default CTK+ handler is
reached.
The value parameter is unrounded. An application that overrides the CtkRange::change-value signal is responsible for clamping the value to the desired number of decimal digits; the default CTK+ handler clamps the value based on “round-digits”.
range |
the CtkRange that received the signal |
|
scroll |
the type of scroll action that was performed |
|
value |
the new value resulting from the scroll action |
|
user_data |
user data set when the signal handler was connected. |
TRUE to prevent other handlers from being invoked for
the signal, FALSE to propagate the signal further
Flags: Run Last
Since: 2.6
“move-slider” signalvoid user_function (CtkRange *range, CtkScrollType step, gpointer user_data)
Virtual function that moves the slider. Used for keybindings.
range |
the CtkRange that received the signal |
|
step |
how to move the slider |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action