78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
/*
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Copyright (C) 2002-2013 Nikolaus Gebhardt
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This file is part of the "Irrlicht Engine".
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For conditions of distribution and use, see copyright notice in irrlicht.h
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Modified 2019.05.01 by stujones11, Stuart Jones <stujones111@gmail.com>
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This is a heavily modified copy of the Irrlicht CGUIScrollBar class
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which includes automatic scaling of the thumb slider and hiding of
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the arrow buttons where there is insufficient space.
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*/
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#pragma once
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#include "irrlichttypes_extrabloated.h"
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using namespace irr;
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using namespace gui;
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class GUIScrollBar : public IGUIElement
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{
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public:
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GUIScrollBar(IGUIEnvironment *environment, IGUIElement *parent, s32 id,
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core::rect<s32> rectangle, bool horizontal, bool auto_scale);
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enum ArrowVisibility
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{
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HIDE,
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SHOW,
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DEFAULT
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};
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virtual void draw();
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virtual void updateAbsolutePosition();
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virtual bool OnEvent(const SEvent &event);
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s32 getMax() const { return max_pos; }
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s32 getMin() const { return min_pos; }
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s32 getLargeStep() const { return large_step; }
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s32 getSmallStep() const { return small_step; }
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s32 getPos() const;
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void setMax(const s32 &max);
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void setMin(const s32 &min);
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void setSmallStep(const s32 &step);
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void setLargeStep(const s32 &step);
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void setPos(const s32 &pos);
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void setPageSize(const s32 &size);
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void setArrowsVisible(ArrowVisibility visible);
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private:
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void refreshControls();
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s32 getPosFromMousePos(const core::position2di &p) const;
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f32 range() const { return f32(max_pos - min_pos); }
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IGUIButton *up_button;
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IGUIButton *down_button;
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ArrowVisibility arrow_visibility = DEFAULT;
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bool is_dragging;
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bool is_horizontal;
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bool is_auto_scaling;
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bool dragged_by_slider;
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bool tray_clicked;
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s32 scroll_pos;
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s32 draw_center;
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s32 thumb_size;
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s32 min_pos;
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s32 max_pos;
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s32 small_step;
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s32 large_step;
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s32 drag_offset;
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s32 page_size;
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s32 border_size;
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core::rect<s32> slider_rect;
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video::SColor current_icon_color;
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};
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