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https://github.com/LadybirdBrowser/ladybird.git
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94ca55cefd
As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
95 lines
3.3 KiB
C++
95 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/GWidget.h>
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class GSlider : public GWidget {
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C_OBJECT(GSlider)
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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 ~GSlider() override;
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Orientation orientation() const { return m_orientation; }
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int value() const { return m_value; }
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int min() const { return m_min; }
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int max() const { return m_max; }
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void set_range(int min, int max);
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void set_value(int);
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void set_min(int min) { set_range(min, max()); }
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void set_max(int max) { set_range(min(), max); }
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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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Rect knob_rect() const;
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Rect 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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Function<void(int)> on_value_changed;
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protected:
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explicit GSlider(GWidget*);
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explicit GSlider(Orientation, GWidget*);
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virtual void paint_event(GPaintEvent&) override;
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virtual void mousedown_event(GMouseEvent&) override;
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virtual void mousemove_event(GMouseEvent&) override;
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virtual void mouseup_event(GMouseEvent&) override;
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virtual void leave_event(CEvent&) override;
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virtual void change_event(GEvent&) override;
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private:
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void set_knob_hovered(bool);
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int m_value { 0 };
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int m_min { 0 };
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int m_max { 100 };
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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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Point m_drag_origin;
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KnobSizeMode m_knob_size_mode { KnobSizeMode::Fixed };
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Orientation m_orientation { Orientation::Horizontal };
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};
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