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public class Astal.Slider : Gtk.Scale {
private Gtk.EventControllerLegacy controller;
private bool dragging;
construct {
if (adjustment == null)
adjustment = new Gtk.Adjustment(0,0,0,0,0,0);
if (max == 0 && min == 0) {
max = 1;
}
if (step == 0) {
step = 0.05;
}
if (page == 0) {
page = 0.01;
}
controller = new Gtk.EventControllerLegacy();
add_controller(controller);
controller.event.connect((event) => {
var type = event.get_event_type();
if (type == Gdk.EventType.BUTTON_PRESS ||
type == Gdk.EventType.KEY_PRESS ||
type == Gdk.EventType.TOUCH_BEGIN) {
dragging = true;
}
if (type == Gdk.EventType.BUTTON_RELEASE ||
type == Gdk.EventType.KEY_RELEASE ||
type == Gdk.EventType.TOUCH_END) {
dragging = false;
}
});
}
/**
* Value of this slider. Defaults to `0`.
*/
public double value {
get { return adjustment.value; }
set { if (!dragging) adjustment.value = value; }
}
/**
* Minimum possible value of this slider. Defaults to `0`.
*/
public double min {
get { return adjustment.lower; }
set { adjustment.lower = value; }
}
/**
* Maximum possible value of this slider. Defaults to `1`.
*/
public double max {
get { return adjustment.upper; }
set { adjustment.upper = value; }
}
/**
* Size of step increments. Defaults to `0.05`.
*/
public double step {
get { return adjustment.step_increment; }
set { adjustment.step_increment = value; }
}
/**
* Size of page increments. Defaults to `0.01`.
*/
public double page {
get { return adjustment.page_increment; }
set { adjustment.page_increment = value; }
}
}
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