scrollbar.h File Reference

#include "base.h"
#include "../chitralekha.h"
#include "window.h"
#include <_xeneva.h>

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Go to the source code of this file.

Classes
struct	_scroll_bar_

Typedefs
typedef struct _scroll_bar_	ChScrollBar

Enumerations
enum	_orientation_ { SCROLLBAR_ORIENTATION_VERTICAL , SCROLLBAR_ORIENTATION_HORIZONTAL }
enum	{   SB_STATE_IDLE , SB_STATE_HOVER_THUMB , SB_STATE_DRAGGING , SB_STATE_HOVER_ARRDEC ,   SB_STATE_HOVER_ARRINC }

Functions
XE_EXPORT ChScrollBar *	ChCreateScrollBar (int x, int y, int width, int height, uint8_t orientation)
	ChCreateScrollBar – create a scrollbar.
XE_EXPORT void	ChScrollBarInit (ChScrollBar *sb, int x, int y, int width, int height, uint8_t orientation)
XE_EXPORT void	ChScrollBarSetValue (ChScrollBar *sb, int value)
XE_EXPORT void	ChScrollBarSetRange (ChScrollBar *sb, int min_val, int max_val, int page_size)

Detailed Description

BSD 2-Clause License

Copyright (c) 2022-2026, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Typedef Documentation

ChScrollBar

typedef struct _scroll_bar_ ChScrollBar

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
SB_STATE_IDLE
SB_STATE_HOVER_THUMB
SB_STATE_DRAGGING
SB_STATE_HOVER_ARRDEC
SB_STATE_HOVER_ARRINC

_orientation_

enum _orientation_

Enumerator
SCROLLBAR_ORIENTATION_VERTICAL
SCROLLBAR_ORIENTATION_HORIZONTAL

Function Documentation

ChCreateScrollBar()

XE_EXPORT ChScrollBar * ChCreateScrollBar	(	int	x,
		int	y,
		int	width,
		int	height,
		uint8_t	orientation
	)

ChCreateScrollBar – create a scrollbar.

Parameters

x	– x location within the window
y	– y location within the window
width	– width of the viewport
height	– height of the viewport
orientation	– scrollbar type, either VERTICAL or HORIZONTAL

Re calculate the thumb

ChScrollBarInit()

XE_EXPORT void ChScrollBarInit	(	ChScrollBar *	sb,
		int	x,
		int	y,
		int	width,
		int	height,
		uint8_t	orientation
	)

Re calculate the thumb

ChScrollBarSetRange()

XE_EXPORT void ChScrollBarSetRange	(	ChScrollBar *	sb,
		int	min_val,
		int	max_val,
		int	page_size
	)

ChScrollBarSetValue()

XE_EXPORT void ChScrollBarSetValue	(	ChScrollBar *	sb,
		int	value
	)