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https://github.com/LadybirdBrowser/ladybird.git
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9deaa74ad6
This patch splits HorizontalSlider to separate header so it can be used as a component in .gml files with new GML compiler.
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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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 Slider : public AbstractSlider {
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C_OBJECT(Slider);
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public:
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enum class KnobSizeMode {
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Fixed,
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Proportional,
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};
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virtual ~Slider() override = default;
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void set_knob_size_mode(KnobSizeMode mode) { m_knob_size_mode = mode; }
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KnobSizeMode knob_size_mode() const { return m_knob_size_mode; }
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int track_size() const { return 2; }
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int track_margin() const { return 10; }
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int knob_fixed_primary_size() const { return 8; }
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int knob_secondary_size() const { return 20; }
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bool knob_dragging() const { return m_dragging; }
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Gfx::IntRect knob_rect() const;
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Gfx::IntRect inner_rect() const
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{
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if (orientation() == Orientation::Horizontal)
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return rect().shrunken(track_margin() * 2, 0);
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return rect().shrunken(0, track_margin() * 2);
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}
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Function<void()> on_drag_start;
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Function<void()> on_drag_end;
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protected:
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explicit Slider(Orientation = Orientation::Vertical);
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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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virtual void paint_event(PaintEvent&) override;
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void start_drag(Gfx::IntPoint);
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virtual void mousedown_event(MouseEvent&) override;
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virtual void mousemove_event(MouseEvent&) override;
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void end_drag();
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virtual void mouseup_event(MouseEvent&) override;
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virtual void mousewheel_event(MouseEvent&) override;
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virtual void leave_event(Core::Event&) override;
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virtual void change_event(Event&) override;
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private:
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void set_knob_hovered(bool);
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bool m_knob_hovered { false };
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bool m_dragging { false };
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int m_drag_origin_value { 0 };
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Gfx::IntPoint m_drag_origin;
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KnobSizeMode m_knob_size_mode { KnobSizeMode::Fixed };
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};
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class VerticalSlider final : public Slider {
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C_OBJECT(VerticalSlider);
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public:
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virtual ~VerticalSlider() override = default;
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private:
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VerticalSlider()
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: Slider(Orientation::Vertical)
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{
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}
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};
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}
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