irrlicht/source/Irrlicht/CGUIScrollBar.h
2023-03-11 15:04:09 +01:00

102 lines
2.2 KiB
C++

// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __C_GUI_SCROLL_BAR_H_INCLUDED__
#define __C_GUI_SCROLL_BAR_H_INCLUDED__
#include "IGUIScrollBar.h"
#include "IGUIButton.h"
namespace irr
{
namespace gui
{
class CGUIScrollBar : public IGUIScrollBar
{
public:
//! constructor
CGUIScrollBar(bool horizontal, IGUIEnvironment* environment,
IGUIElement* parent, s32 id, core::rect<s32> rectangle,
bool noclip=false);
//! destructor
virtual ~CGUIScrollBar();
//! called if an event happened.
bool OnEvent(const SEvent& event) override;
//! draws the element and its children
void draw() override;
void OnPostRender(u32 timeMs) override;
//! gets the maximum value of the scrollbar.
s32 getMax() const override;
//! sets the maximum value of the scrollbar.
void setMax(s32 max) override;
//! gets the minimum value of the scrollbar.
s32 getMin() const override;
//! sets the minimum value of the scrollbar.
void setMin(s32 min) override;
//! gets the small step value
s32 getSmallStep() const override;
//! sets the small step value
void setSmallStep(s32 step) override;
//! gets the large step value
s32 getLargeStep() const override;
//! sets the large step value
void setLargeStep(s32 step) override;
//! gets the current position of the scrollbar
s32 getPos() const override;
//! sets the position of the scrollbar
void setPos(s32 pos) override;
//! updates the rectangle
void updateAbsolutePosition() override;
private:
void refreshControls();
s32 getPosFromMousePos(const core::position2di &p) const;
IGUIButton* UpButton;
IGUIButton* DownButton;
core::rect<s32> SliderRect;
bool Dragging;
bool Horizontal;
bool DraggedBySlider;
bool TrayClick;
s32 Pos;
s32 DrawPos;
s32 DrawHeight;
s32 Min;
s32 Max;
s32 SmallStep;
s32 LargeStep;
s32 DesiredPos;
u32 LastChange;
video::SColor CurrentIconColor;
f32 range () const { return (f32) ( Max - Min ); }
};
} // end namespace gui
} // end namespace irr
#endif