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/*
* Copyright (c) 2021, Cesar Torres <shortanemoia@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Slider.h>
class AutoSlider final : public GUI::Slider {
C_OBJECT(AutoSlider)
public:
~AutoSlider() override = default;
Function<void(int)> on_knob_released;
virtual void set_value(int value, GUI::AllowCallback allow_callback = GUI::AllowCallback::Yes) override
{
m_in_drag_value = value;
if (!knob_dragging() && !mouse_is_down())
GUI::Slider::set_value(value, allow_callback);
}
bool mouse_is_down() const { return m_mouse_is_down; }
private:
AutoSlider(Orientation orientation)
: GUI::Slider(orientation)
{
}
virtual void mousedown_event(GUI::MouseEvent& event) override
{
m_mouse_is_down = true;
GUI::Slider::mousedown_event(event);
}
virtual void mouseup_event(GUI::MouseEvent& event) override
{
m_mouse_is_down = false;
set_value(m_in_drag_value);
if (on_knob_released && is_enabled())
on_knob_released(value());
GUI::Slider::mouseup_event(event);
}
bool m_mouse_is_down { false };
// Keeps track of the value while we're dragging
int m_in_drag_value { 0 };
};
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