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109 lines
3.3 KiB
C++
109 lines
3.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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;
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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 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(20, 0);
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return rect().shrunken(0, 20);
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}
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protected:
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explicit Slider(Orientation = Orientation::Vertical);
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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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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 { }
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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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class HorizontalSlider final : public Slider {
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C_OBJECT(HorizontalSlider);
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public:
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virtual ~HorizontalSlider() override { }
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private:
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HorizontalSlider()
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: Slider(Orientation::Horizontal)
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{
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}
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};
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}
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