#include "scrollbar.h"
#include <stdlib.h>
#include <math.h>

Include dependency graph for scrollbar.cpp:

Macros
#define	ARROW_SIZE 10

#define	MIN_THUMB_SIZE 20

#define	SCROLLBAR_CLAMP(v, lo, hi) ((v) < (lo) ? (lo) : (v) > (hi) ? (hi) : (v))

#define	SCROLLBAR_MAX(a, b) ((a) > (b) ? (a) : (b))

#define	COLOR_TRACK 0xFF2D2D2D

#define	COLOR_THUMB 0xFF666666

#define	COLOR_THUMB_HOVER 0xFF888888

#define	COLOR_THUMB_DRAG 0xFFAAAAAA

#define	COLOR_ARROW_BG 0xFF3A3A3A

#define	COLOR_ARROW_FG 0xFFCCCCCC

Enumerations
enum	{ SB_HIT_NONE , SB_HIT_ARROW_DEC , SB_HIT_TRACK_DEC , SB_HIT_THUMB , SB_HIT_TRACK_INC , SB_HIT_ARROW_INC }

Functions
void	ChScrollBarPaint (ChWidget wid, ChWindow win)

void	ScrollBarMouseEvent (ChWidget wid, ChWindow win, int mx, int my, int button)
	ScrollBarMouseEvent – scroll bar mouse event.

ChScrollBar *	ChCreateScrollBar (int x, int y, int width, int height, uint8_t orientation)
	ChCreateScrollBar – create a scrollbar.

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

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

void	ChScrollBarSetValue (ChScrollBar *sb, int value)

Detailed Description

BSD 2-Clause License

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

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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.

Macro Definition Documentation

◆ ARROW_SIZE

#define ARROW_SIZE 10

◆ COLOR_ARROW_BG

#define COLOR_ARROW_BG 0xFF3A3A3A

◆ COLOR_ARROW_FG

#define COLOR_ARROW_FG 0xFFCCCCCC

◆ COLOR_THUMB

#define COLOR_THUMB 0xFF666666

◆ COLOR_THUMB_DRAG

#define COLOR_THUMB_DRAG 0xFFAAAAAA

◆ COLOR_THUMB_HOVER

#define COLOR_THUMB_HOVER 0xFF888888

◆ COLOR_TRACK

#define COLOR_TRACK 0xFF2D2D2D

◆ MIN_THUMB_SIZE

#define MIN_THUMB_SIZE 20

◆ SCROLLBAR_CLAMP

#define SCROLLBAR_CLAMP	(	v,
		lo,
		hi
	)	((v) < (lo) ? (lo) : (v) > (hi) ? (hi) : (v))

◆ SCROLLBAR_MAX

#define SCROLLBAR_MAX	(	a,
		b
	)	((a) > (b) ? (a) : (b))

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
SB_HIT_NONE
SB_HIT_ARROW_DEC
SB_HIT_TRACK_DEC
SB_HIT_THUMB
SB_HIT_TRACK_INC
SB_HIT_ARROW_INC

Function Documentation

◆ ChCreateScrollBar()

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()

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