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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Widget.h>
namespace GUI {
class AbstractSlider : public Widget {
C_OBJECT_ABSTRACT(AbstractSlider);
public:
virtual ~AbstractSlider() override = default;
void set_orientation(Orientation value);
Orientation orientation() const { return m_orientation; }
int value() const { return m_value; }
int min() const { return m_min; }
int max() const { return m_max; }
int step() const { return m_step; }
int page_step() const { return m_page_step; }
bool jump_to_cursor() const { return m_jump_to_cursor; }
bool is_min() const { return m_value == m_min; }
bool is_max() const { return m_value == m_max; }
void set_range(int min, int max);
enum class DoClamp {
Yes = 1,
No = 0
};
virtual void set_value(int, AllowCallback = AllowCallback::Yes, DoClamp = DoClamp::Yes);
void set_min(int min) { set_range(min, max()); }
void set_max(int max) { set_range(min(), max); }
void set_step(int step) { m_step = step; }
void set_page_step(int page_step);
void set_jump_to_cursor(bool b) { m_jump_to_cursor = b; }
virtual void increase_slider_by(int delta) { set_value(value() + delta); }
virtual void decrease_slider_by(int delta) { set_value(value() - delta); }
virtual void increase_slider_by_page_steps(int page_steps) { set_value(value() + page_step() * page_steps); }
virtual void decrease_slider_by_page_steps(int page_steps) { set_value(value() - page_step() * page_steps); }
virtual void increase_slider_by_steps(int steps) { set_value(value() + step() * steps); }
virtual void decrease_slider_by_steps(int steps) { set_value(value() - step() * steps); }
Function<void(int)> on_change;
protected:
explicit AbstractSlider(Orientation = Orientation::Vertical);
private:
void set_knob_hovered(bool);
int m_value { 0 };
int m_min { 0 };
int m_max { 0 };
int m_step { 1 };
int m_page_step { 10 };
bool m_jump_to_cursor { false };
Orientation m_orientation { Orientation::Horizontal };
};
}
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