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72 lines
2 KiB
C++
72 lines
2 KiB
C++
/*
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* Copyright (c) 2023, Torsten Engelmann <engelTorsten@gmx.de>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGUI/AbstractSlider.h>
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namespace GUI {
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class RangeSlider : public AbstractSlider {
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C_OBJECT(RangeSlider);
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public:
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virtual ~RangeSlider() override = default;
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void set_gradient_color(Gfx::Color, Gfx::Color);
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void set_gradient_colors(Vector<Gfx::ColorStop>);
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void set_show_label(bool);
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bool show_label();
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void set_lower_range(int value, AllowCallback allow_callback = AllowCallback::Yes);
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void set_upper_range(int value, AllowCallback allow_callback = AllowCallback::Yes);
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int lower_range();
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int upper_range();
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void set_range(int min, int max);
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Function<void(int, int)> on_range_change;
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protected:
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explicit RangeSlider(Gfx::Orientation = Gfx::Orientation::Horizontal);
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virtual void paint_event(PaintEvent&) override;
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virtual void mousedown_event(MouseEvent&) override;
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virtual void mousemove_event(MouseEvent&) override;
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virtual void mouseup_event(MouseEvent&) override;
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virtual void mousewheel_event(MouseEvent&) override;
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private:
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Gfx::IntRect frame_inner_rect() const;
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Vector<Gfx::ColorStop> m_background_gradient = Vector { Gfx::ColorStop { { 0, 0, 0, 0 }, 0 }, Gfx::ColorStop { { 0, 0, 0, 255 }, 1 } };
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virtual Optional<UISize> calculated_min_size() const override;
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virtual Optional<UISize> calculated_preferred_size() const override;
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int value_at(Gfx::IntPoint) const;
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Gfx::IntRect knob_rect_for_value(int value) const;
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bool m_show_label { true };
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bool m_dragging { false };
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bool m_hovered_lower_knob { false };
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bool m_hovered_upper_knob { false };
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int m_lower_range = 0;
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int m_upper_range = 0;
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int const c_knob_width = 7;
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};
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class HorizontalRangeSlider final : public RangeSlider {
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C_OBJECT(HorizontalRangeSlider);
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public:
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virtual ~HorizontalRangeSlider() override = default;
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private:
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HorizontalRangeSlider()
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: RangeSlider(Orientation::Horizontal)
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{
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}
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};
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}
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