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/*
* NOTE: This is a MODIFIED version of libvterm, see the README file.
*/
#ifndef __VTERM_H__
#define __VTERM_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include "vterm_keycodes.h"
#define TRUE 1
#define FALSE 0
// from stdint.h
typedef unsigned char uint8_t;
typedef unsigned int uint32_t;
#define VTERM_VERSION_MAJOR 0
#define VTERM_VERSION_MINOR 1
#define VTERM_CHECK_VERSION \
vterm_check_version(VTERM_VERSION_MAJOR, VTERM_VERSION_MINOR)
typedef struct VTerm VTerm;
typedef struct VTermState VTermState;
typedef struct VTermScreen VTermScreen;
// Specifies a screen point.
typedef struct {
int row;
int col;
} VTermPos;
/* some small utility functions; we can just keep these static here */
/*
* Order points by on-screen flow order:
* Return < 0 if "a" is before "b"
* Return 0 if "a" and "b" are equal
* Return > 0 if "a" is after "b".
*/
int vterm_pos_cmp(VTermPos a, VTermPos b);
#if defined(DEFINE_INLINES) || USE_INLINE
INLINE int vterm_pos_cmp(VTermPos a, VTermPos b)
{
return (a.row == b.row) ? a.col - b.col : a.row - b.row;
}
#endif
// Specifies a rectangular screen area.
typedef struct {
int start_row;
int end_row;
int start_col;
int end_col;
} VTermRect;
/* true if the rect contains the point */
int vterm_rect_contains(VTermRect r, VTermPos p);
#if defined(DEFINE_INLINES) || USE_INLINE
INLINE int vterm_rect_contains(VTermRect r, VTermPos p)
{
return p.row >= r.start_row && p.row < r.end_row &&
p.col >= r.start_col && p.col < r.end_col;
}
#endif
/* move a rect */
// Move "rect" "row_delta" down and "col_delta" right.
// Does not check boundaries.
void vterm_rect_move(VTermRect *rect, int row_delta, int col_delta);
#if defined(DEFINE_INLINES) || USE_INLINE
INLINE void vterm_rect_move(VTermRect *rect, int row_delta, int col_delta)
{
rect->start_row += row_delta; rect->end_row += row_delta;
rect->start_col += col_delta; rect->end_col += col_delta;
}
#endif
/**
* Bit-field describing the value of VTermColor.type
*/
typedef enum {
/**
* If the lower bit of `type` is not set, the colour is 24-bit RGB.
*/
VTERM_COLOR_RGB = 0x00,
/**
* The colour is an index into a palette of 256 colours.
*/
VTERM_COLOR_INDEXED = 0x01,
/**
* Mask that can be used to extract the RGB/Indexed bit.
*/
VTERM_COLOR_TYPE_MASK = 0x01,
/**
* If set, indicates that this colour should be the default foreground
* color, i.e. there was no SGR request for another colour. When
* rendering this colour it is possible to ignore "idx" and just use a
* colour that is not in the palette.
*/
VTERM_COLOR_DEFAULT_FG = 0x02,
/**
* If set, indicates that this colour should be the default background
* color, i.e. there was no SGR request for another colour. A common
* option when rendering this colour is to not render a background at
* all, for example by rendering the window transparently at this spot.
*/
VTERM_COLOR_DEFAULT_BG = 0x04,
/**
* Mask that can be used to extract the default foreground/background bit.
*/
VTERM_COLOR_DEFAULT_MASK = 0x06,
/**
* If set, indicates that the color is invalid.
*/
VTERM_COLOR_INVALID = 0x08
} VTermColorType;
/**
* Returns true if the VTERM_COLOR_RGB `type` flag is set, indicating that the
* given VTermColor instance is an indexed colour.
*/
#define VTERM_COLOR_IS_INDEXED(col) \
(((col)->type & VTERM_COLOR_TYPE_MASK) == VTERM_COLOR_INDEXED)
/**
* Returns true if the VTERM_COLOR_INDEXED `type` flag is set, indicating that
* the given VTermColor instance is an rgb colour.
*/
#define VTERM_COLOR_IS_RGB(col) \
(((col)->type & VTERM_COLOR_TYPE_MASK) == VTERM_COLOR_RGB)
/**
* Returns true if the VTERM_COLOR_DEFAULT_FG `type` flag is set, indicating
* that the given VTermColor instance corresponds to the default foreground
* color.
*/
#define VTERM_COLOR_IS_DEFAULT_FG(col) \
(!!((col)->type & VTERM_COLOR_DEFAULT_FG))
/**
* Returns true if the VTERM_COLOR_DEFAULT_BG `type` flag is set, indicating
* that the given VTermColor instance corresponds to the default background
* color.
*/
#define VTERM_COLOR_IS_DEFAULT_BG(col) \
(!!((col)->type & VTERM_COLOR_DEFAULT_BG))
/**
* Returns true if the VTERM_COLOR_INVALID `type` flag is set, indicating
* that the given VTermColor instance is an invalid color.
*/
#define VTERM_COLOR_IS_INVALID(col) (!!((col)->type & VTERM_COLOR_INVALID))
typedef struct {
/**
* Tag indicating which member is actually valid.
* Please use the `VTERM_COLOR_IS_*` test macros to check whether a
* particular type flag is set.
*/
uint8_t type;
uint8_t red, green, blue;
uint8_t index;
} VTermColor;
/**
* Constructs a new VTermColor instance representing the given RGB values.
*/
void vterm_color_rgb(VTermColor *col, uint8_t red, uint8_t green, uint8_t blue);
/**
* Construct a new VTermColor instance representing an indexed color with the
* given index.
*/
void vterm_color_indexed(VTermColor *col, uint8_t idx);
/**
* Compares two colours. Returns true if the colors are equal, false otherwise.
*/
int vterm_color_is_equal(const VTermColor *a, const VTermColor *b);
typedef enum {
/* VTERM_VALUETYPE_NONE = 0 */
VTERM_VALUETYPE_BOOL = 1,
VTERM_VALUETYPE_INT,
VTERM_VALUETYPE_STRING,
VTERM_VALUETYPE_COLOR,
VTERM_N_VALUETYPES
} VTermValueType;
typedef struct {
const char *str;
size_t len : 30;
unsigned int initial : 1;
unsigned int final : 1;
} VTermStringFragment;
typedef union {
int boolean;
int number;
VTermStringFragment string;
VTermColor color;
} VTermValue;
typedef enum {
/* VTERM_ATTR_NONE = 0 */
VTERM_ATTR_BOLD = 1, // bool: 1, 22
VTERM_ATTR_UNDERLINE, // number: 4, 21, 24
VTERM_ATTR_ITALIC, // bool: 3, 23
VTERM_ATTR_BLINK, // bool: 5, 25
VTERM_ATTR_REVERSE, // bool: 7, 27
VTERM_ATTR_CONCEAL, // bool: 8, 28
VTERM_ATTR_STRIKE, // bool: 9, 29
VTERM_ATTR_FONT, // number: 10-19
VTERM_ATTR_FOREGROUND, // color: 30-39 90-97
VTERM_ATTR_BACKGROUND, // color: 40-49 100-107
VTERM_N_ATTRS
} VTermAttr;
typedef enum {
/* VTERM_PROP_NONE = 0 */
VTERM_PROP_CURSORVISIBLE = 1, // bool
VTERM_PROP_CURSORBLINK, // bool
VTERM_PROP_ALTSCREEN, // bool
VTERM_PROP_TITLE, // string
VTERM_PROP_ICONNAME, // string
VTERM_PROP_REVERSE, // bool
VTERM_PROP_CURSORSHAPE, // number
VTERM_PROP_MOUSE, // number
VTERM_PROP_CURSORCOLOR, // string
VTERM_N_PROPS
} VTermProp;
enum {
VTERM_PROP_CURSORSHAPE_BLOCK = 1,
VTERM_PROP_CURSORSHAPE_UNDERLINE,
VTERM_PROP_CURSORSHAPE_BAR_LEFT,
VTERM_N_PROP_CURSORSHAPES
};
enum {
VTERM_PROP_MOUSE_NONE = 0,
VTERM_PROP_MOUSE_CLICK,
VTERM_PROP_MOUSE_DRAG,
VTERM_PROP_MOUSE_MOVE,
VTERM_N_PROP_MOUSES
};
typedef struct {
const uint32_t *chars;
int width;
unsigned int protected_cell:1; /* DECSCA-protected against DECSEL/DECSED */
unsigned int dwl:1; /* DECDWL or DECDHL double-width line */
unsigned int dhl:2; /* DECDHL double-height line (1=top 2=bottom) */
} VTermGlyphInfo;
typedef struct {
unsigned int doublewidth:1; /* DECDWL or DECDHL line */
unsigned int doubleheight:2; /* DECDHL line (1=top 2=bottom) */
unsigned int continuation:1; /* Line is a flow continuation of the previous */
} VTermLineInfo;
/* Copies of VTermState fields that the 'resize' callback might have reason to
* edit. 'resize' callback gets total control of these fields and may
* free-and-reallocate them if required. They will be copied back from the
* struct after the callback has returned.
*/
typedef struct {
VTermPos pos; /* current cursor position */
} VTermStateFields;
typedef struct {
/* libvterm relies on this memory to be zeroed out before it is returned
* by the allocator. */
void *(*malloc)(size_t size, void *allocdata);
void (*free)(void *ptr, void *allocdata);
} VTermAllocatorFunctions;
void vterm_check_version(int major, int minor);
// Allocate and initialize a new terminal with default allocators.
VTerm *vterm_new(int rows, int cols);
// Allocate and initialize a new terminal with specified allocators.
VTerm *vterm_new_with_allocator(int rows, int cols, VTermAllocatorFunctions *funcs, void *allocdata);
// Free and cleanup a terminal and all its data.
void vterm_free(VTerm* vt);
// Get the current size of the terminal and store in "rowsp" and "colsp".
void vterm_get_size(const VTerm *vt, int *rowsp, int *colsp);
void vterm_set_size(VTerm *vt, int rows, int cols);
int vterm_get_utf8(const VTerm *vt);
void vterm_set_utf8(VTerm *vt, int is_utf8);
size_t vterm_input_write(VTerm *vt, const char *bytes
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