dwin.c File Reference

Window support for C-Menu - EXPERIMENTAL. More...

#include "cm.h"
#include "ui_backend.h"
#include <errno.h>
#include <fcntl.h>
#include <iso646.h>
#include <math.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#include <wchar.h>

Include dependency graph for dwin.c:

Go to the source code of this file.

Typedefs
typedef enum Cells	cells_t

Enumerations
enum	Cells {   _DEFAULT , _FILL_CHAR , _BRKTL , _BRKTR ,   _NT , _NT_REV , _NT_HL , _NT_HL_REV ,   _BOX , _IND , _CMDLN , _TITLE ,   _LN , _RAN , _CHK , _LS ,   _RS , _TS , _BS , _TL ,   _TR , _HO , _VE , _BL ,   _BR , _LT , _RT , _TT ,   _BT , _CR , _SP , _DEFAULT ,   _FILL_CHAR , _BRKTL , _BRKTR , _NT ,   _NT_REV , _NT_HL , _NT_HL_REV , _BOX ,   _IND , _CMDLN , _TITLE , _LN ,   _RAN , _CHK , _LS , _RS ,   _TS , _BS , _TL , _TR ,   _HO , _VE , _BL , _BR ,   _LT , _RT , _TT , _BT ,   _CR , _SP }
enum	Cells {   _DEFAULT , _FILL_CHAR , _BRKTL , _BRKTR ,   _NT , _NT_REV , _NT_HL , _NT_HL_REV ,   _BOX , _IND , _CMDLN , _TITLE ,   _LN , _RAN , _CHK , _LS ,   _RS , _TS , _BS , _TL ,   _TR , _HO , _VE , _BL ,   _BR , _LT , _RT , _TT ,   _BT , _CR , _SP , _DEFAULT ,   _FILL_CHAR , _BRKTL , _BRKTR , _NT ,   _NT_REV , _NT_HL , _NT_HL_REV , _BOX ,   _IND , _CMDLN , _TITLE , _LN ,   _RAN , _CHK , _LS , _RS ,   _TS , _BS , _TL , _TR ,   _HO , _VE , _BL , _BR ,   _LT , _RT , _TT , _BT ,   _CR , _SP }

Functions
void	abend (int ec, char *s)
	Abnormal program termination.
bool	action_disposition (char *title, char *action_str)
	Display a simple action disposition message window or print to stderr.
void	activate_all_chyron_keys (Chyron *chyron)
	Deactivate chyron key.
void	activate_chyron_key (Chyron *chyron, uint k)
	Activate chyron key.
int	answer_yn (char *msg0, char *msg1, char *msg2, char *msg3)
	Accept a single letter answer.
void	apply_gamma (RGB *rgb)
	Apply gamma correction to RGB color.
int	assign_chyron_win (Chyron *chyron, UiSurface *sfc, uint win, char *y)
int	border_draw (UiSurface *sfc)
int	border_title (UiSurface *sfc, char *title)
	Draw a box with a title around the specified window.
int	border_ysplit (UiSurface *sfc, uint y)
	Draw a box with a separator line around the specified window.
int	border_ysplit_text (UiSurface *sfc, char *text, uint separator_line)
	Draw a box with a separator line and text around the specified window.
int	cm_surface_destroy (UiSurface *sfc)
	Destroy the most recently created surface.
void	compile_chyron (Chyron *chyron)
	construct the chyron string from the chyron structure
void	deactivate_all_chyron_keys (Chyron *chyron)
	Deactivate all chyron keys.
void	deactivate_chyron_key (Chyron *chyron, uint k)
	Deactivate chyron key.
Chyron *	destroy_chyron (Chyron *chyron)
	Destroy Chyron structure.
void	destroy_curses ()
	Gracefully shut down NCurses and restore terminal settings.
void	display_chyron (UiSurface *sfc, uint w, Chyron *chyron, uint line, uint col)
	Display chyron on the specified line and column of the surface.
int	display_error (char *msg0, char *msg1, char *msg2, char *msg3)
	Display an error message window or print to stderr.
int	get_chyron_key (Chyron *chyron, uint x)
	Get keycode from chyron.
bool	init_clr_palette (SIO *sio)
	Initialize color palette based on SIO settings.
void	initialize_cells (SIO *sio)
	Initialize local color variables and color pairs based on SIO settings.
bool	is_set_chyron_key (Chyron *chyron, uint k)
	Check if function key label is set.
void	mbc_to_wc (wchar_t wc[2], const char mbc)
uint	mbstr_to_cellstr (UiCell *cmplx_buf, const char *str, const UiCell *cell_base, uint *p, const uint atmost)
	Convert multibyte string to complex character array.
wchar_t *	mbstr_to_wcstr (const char *mb_str)
Chyron *	new_chyron ()
	Create and initialize Chyron structure.
int	Perror (char *emsg_str)
	Display a simple error message window or print to stderr.
uint	rgb_to_xterm256_idx (RGB *rgb)
	Convert RGB color to XTerm 256 color index.
void	set_chyron_key (Chyron *chyron, uint k, char *s, uint kc)
	Set chyron key with default color pair (cp_nt_rev).
void	set_chyron_key_cb (Chyron *chyron, uint k, char *s, uint kc, UiCell cell_base)
	Set chyron key with color pair (cp).
int	surface_box_win_new (uint wlines, uint wcols, uint wbegy, uint wbegx, char *wtitle)
int	surface_split_box_win_new (uint wlines, uint wcols, uint split_y, uint split_x, uint wbegy, uint wbegx, char *wtitle)
void	unset_chyron_key (Chyron *chyron, uint k)
	Unset chyron key.
RGB	xterm256_idx_to_rgb (uint idx)
	Convert XTerm 256 color index to RGB.

Variables
double	BLUE_GAMMA = 1.2
uint16_t	box_attr
UiCell	cell_bl
UiCell	cell_box
UiCell	cell_br
UiCell	cell_brktl
UiCell	cell_brktr
UiCell	cell_bs
UiCell	cell_bt
UiCell	cell_chk
UiCell	cell_cmdln
UiCell	cell_cr
UiCell	cell_default
UiCell	cell_fill_char
UiCell	cell_ho
UiCell	cell_ind
UiCell	cell_ln
UiCell	cell_ls
UiCell	cell_lt
UiCell	cell_nt
UiCell	cell_nt_hl
UiCell	cell_nt_hl_rev
UiCell	cell_nt_rev
UiCell	cell_ran
UiCell	cell_rs
UiCell	cell_rt
UiCell	cell_sp
UiCell	cell_title
UiCell	cell_tl
UiCell	cell_tr
UiCell	cell_ts
UiCell	cell_tt
UiCell	cell_ve
int	click_x
int	click_y
unsigned int	cmd_key
char const	colors_text [][10]
	Color names for .minitrc overrides.
ushort	cp_blue
ushort	cp_box
ushort	cp_brackets
ushort	cp_cmdln
ushort	cp_default
ushort	cp_fill_char
ushort	cp_green
ushort	cp_ind
ushort	cp_ln
ushort	cp_nt
ushort	cp_nt_hl
ushort	cp_nt_hl_rev
ushort	cp_nt_rev
ushort	cp_red
ushort	cp_title
ushort	cp_yellow
char	em0 [MAXLEN]
char	em1 [MAXLEN]
char	em2 [MAXLEN]
char	em3 [MAXLEN]
int	exit_code
bool	f_sigwench = false
char	fn [MAXLEN]
double	GRAY_GAMMA = 1.2
double	GREEN_GAMMA = 1.2
uint	m_begx = -1
uint	m_begy = -1
uint	m_cols
uint	m_lines
uint	mouse_support
int	pipe_in
int	pipe_out
double	RED_GAMMA = 1.2
uint	src_line
char *	src_name
int	stderr_fd
int	stdin_fd
int	stdout_fd
int	tty_fd
uint16_t	win_attr

Detailed Description

Window support for C-Menu - EXPERIMENTAL.

This file contains functions for managing NCurses windows and color settings for the Chyron structure for function key labels and mouse click handling. This file is a work in progress and may be subject to change as the C-Menu project evolves. Generally, don't try to use it yet unless you want complete the half-done code modifications.

Author

Bill Waller Copyright (c) 2025 MIT License billx.nosp@m.wall.nosp@m.er@gm.nosp@m.ail..nosp@m.com

Date

2026-02-09

Definition in file dwin.c.

Typedef Documentation

cells_t

typedef enum Cells cells_t

Enumeration Type Documentation

Cells [1/2]

enum Cells

Enumerator
_DEFAULT
_FILL_CHAR
_BRKTL
_BRKTR
_NT
_NT_REV
_NT_HL
_NT_HL_REV
_BOX
_IND
_CMDLN
_TITLE
_LN
_RAN
_CHK
_LS
_RS
_TS
_BS
_TL
_TR
_HO
_VE
_BL
_BR
_LT
_RT
_TT
_BT
_CR
_SP
_DEFAULT
_FILL_CHAR
_BRKTL
_BRKTR
_NT
_NT_REV
_NT_HL
_NT_HL_REV
_BOX
_IND
_CMDLN
_TITLE
_LN
_RAN
_CHK
_LS
_RS
_TS
_BS
_TL
_TR
_HO
_VE
_BL
_BR
_LT
_RT
_TT
_BT
_CR
_SP

Definition at line 56 of file dwin.c.

                   {
    _DEFAULT,
    _FILL_CHAR,
    _BRKTL,
    _BRKTR,
    _NT,
    _NT_REV,
    _NT_HL,
    _NT_HL_REV,
    _BOX,
    _IND,
    _CMDLN,
    _TITLE,
    _LN,
    _RAN,
    _CHK,
    _LS,
    _RS,
    _TS,
    _BS,
    _TL,
    _TR,
    _HO,
    _VE,
    _BL,
    _BR,
    _LT,
    _RT,
    _TT,
    _BT,
    _CR,
    _SP
} cells_t;

Cells [2/2]

enum Cells

Enumerator
_DEFAULT
_FILL_CHAR
_BRKTL
_BRKTR
_NT
_NT_REV
_NT_HL
_NT_HL_REV
_BOX
_IND
_CMDLN
_TITLE
_LN
_RAN
_CHK
_LS
_RS
_TS
_BS
_TL
_TR
_HO
_VE
_BL
_BR
_LT
_RT
_TT
_BT
_CR
_SP
_DEFAULT
_FILL_CHAR
_BRKTL
_BRKTR
_NT
_NT_REV
_NT_HL
_NT_HL_REV
_BOX
_IND
_CMDLN
_TITLE
_LN
_RAN
_CHK
_LS
_RS
_TS
_BS
_TL
_TR
_HO
_VE
_BL
_BR
_LT
_RT
_TT
_BT
_CR
_SP

Definition at line 56 of file dwin.c.

                   {
    _DEFAULT,
    _FILL_CHAR,
    _BRKTL,
    _BRKTR,
    _NT,
    _NT_REV,
    _NT_HL,
    _NT_HL_REV,
    _BOX,
    _IND,
    _CMDLN,
    _TITLE,
    _LN,
    _RAN,
    _CHK,
    _LS,
    _RS,
    _TS,
    _BS,
    _TL,
    _TR,
    _HO,
    _VE,
    _BL,
    _BR,
    _LT,
    _RT,
    _TT,
    _BT,
    _CR,
    _SP
} cells_t;

Function Documentation

apply_gamma()

void apply_gamma

(

RGB *

rgb

)

Apply gamma correction to RGB color.

apply_gamma

Parameters

rgb	Pointer to RGB color

This function modifies the RGB color in place. It applies gamma correction to the RGB color based on the gamma values set in the SIO struct. If the color is a shade of gray, it applies the gray gamma correction. Otherwise, it applies the individual red, green, and blue gamma corrections.

Definition at line 307 of file dwin.c.

                           {
    if (rgb->r == rgb->g && rgb->r == rgb->b) {
        if (GRAY_GAMMA > 0.0f && GRAY_GAMMA != 1.0f) {
            rgb->r = (int)(pow((rgb->r / 255.0f), 1.0f / GRAY_GAMMA) * 255.0f);
            rgb->g = rgb->r;
            rgb->b = rgb->r;
        }
        return;
    }
    if (rgb->r != 0 && RED_GAMMA > 0.0f && RED_GAMMA != 1.0f)
        rgb->r = (int)(pow((rgb->r / 255.0f), 1.0f / RED_GAMMA) * 255.0f);
    if (rgb->g != 0 && GREEN_GAMMA > 0.0f && GREEN_GAMMA != 1.0f)
        rgb->g = (int)(pow((rgb->g / 255.0f), 1.0f / GREEN_GAMMA) * 255.0f);
    if (rgb->b != 0 && BLUE_GAMMA > 0.0f && BLUE_GAMMA != 1.0f)
        rgb->b = (int)(pow((rgb->b / 255.0f), 1.0f / BLUE_GAMMA) * 255.0f);
}

References BLUE_GAMMA, GRAY_GAMMA, GREEN_GAMMA, and RED_GAMMA.

Referenced by ui_add_color_rgb(), ui_chg_color(), and ui_init_color_hex().

Here is the caller graph for this function:

assign_chyron_win()

int assign_chyron_win	(	Chyron *	chyron,
		UiSurface *	sfc,
		uint	win,
		char *	y )

Definition at line 962 of file dwin.c.

                                                                         {
    bool a_toi_error = false;
    if (!sfc)
        return -1;
    chyron->sfc = sfc;
    chyron->win = win;
    if (*y == '-')
        chyron->y = ui_getmaxy(sfc, win) - 1;
    else {
        chyron->y = a_toi(y, &a_toi_error);
        if (a_toi_error)
            return -1;
        chyron->y = min(chyron->y, ui_getmaxy(sfc, win) - 1);
    }
    return 0;
}

References a_toi(), Chyron::sfc, ui_getmaxy(), Chyron::win, and Chyron::y.

Referenced by open_pick_win().

Here is the call graph for this function:

Here is the caller graph for this function:

border_draw()

int border_draw

(

UiSurface *

sfc

)

Definition at line 581 of file dwin.c.

                                {
    uint maxy = ui_getmaxy(sfc, BOX);
    uint maxx = ui_getmaxx(sfc, BOX);
    uint y = 0;
    uint x = 0;
    ui_mvwadd_wchnstr(sfc, BOX, y, x++, &cell_tl, 1);
    ui_render();
    for (x = 1; x < maxx - 1; x++)
        ui_mvwadd_wchnstr(sfc, BOX, y, x, &cell_ho, 1);
    ui_render();
    ui_mvwadd_wchnstr(sfc, BOX, y, maxx - 1, &cell_tr, 1);
    ui_render();
    for (y = 1; y < maxy - 1; y++) {
        ui_mvwadd_wchnstr(sfc, BOX, y, 0, &cell_ve, 1);
        ui_render();
        ui_mvwadd_wchnstr(sfc, BOX, y, maxx - 1, &cell_ve, 1);
        ui_render();
    }
    ui_mvwadd_wchnstr(sfc, BOX, y, 0, &cell_bl, 1);
    for (x = 1; x < maxx - 1; x++)
        ui_mvwadd_wchnstr(sfc, BOX, y, x, &cell_ho, 1);
    ui_mvwadd_wchnstr(sfc, BOX, y, maxx - 1, &cell_br, 1);
    ui_render();
    return 0;
}

References BOX, cell_bl, cell_br, cell_ho, cell_tl, cell_tr, cell_ve, ui_getmaxx(), ui_getmaxy(), ui_mvwadd_wchnstr(), and ui_render().

Referenced by ui_box_surface_new(), and ui_box_surface_new().

Here is the call graph for this function:

Here is the caller graph for this function:

init_clr_palette()

bool init_clr_palette

(

SIO *

sio

)

Initialize color palette based on SIO settings.

init_clr_palette

Parameters

sio	Pointer to SIO struct with color settings

Returns

true if successful, false if error

This function initializes the xterm256 color cube and applies any color overrides specified in the SIO struct. The color strings in the SIO struct are expected to be six-digit HTML style hex color codes (e.g., "#RRGGBB"). If a color override is specified for any of the standard colors, it is applied using the ui_add_color_hex function.

Definition at line 333 of file dwin.c.

                                {
    ui_chg_color(CLR_BLACK, &sio->black);
    ui_chg_color(CLR_RED, &sio->red);
    ui_chg_color(CLR_GREEN, &sio->green);
    ui_chg_color(CLR_YELLOW, &sio->yellow);
    ui_chg_color(CLR_BLUE, &sio->blue);
    ui_chg_color(CLR_MAGENTA, &sio->magenta);
    ui_chg_color(CLR_CYAN, &sio->cyan);
    ui_chg_color(CLR_WHITE, &sio->white);
    ui_chg_color(CLR_BBLACK, &sio->bblack);
    ui_chg_color(CLR_BRED, &sio->bred);
    ui_chg_color(CLR_BGREEN, &sio->bgreen);
    ui_chg_color(CLR_BYELLOW, &sio->byellow);
    ui_chg_color(CLR_BBLUE, &sio->bblue);
    ui_chg_color(CLR_BMAGENTA, &sio->bmagenta);
    ui_chg_color(CLR_BCYAN, &sio->bcyan);
    ui_chg_color(CLR_BWHITE, &sio->bwhite);
    ui_chg_color(CLR_BORANGE, &sio->borange);
    ui_chg_color(CLR_FG, &sio->fg);
    ui_chg_color(CLR_BG, &sio->bg);
    ui_chg_color(CLR_BOX_FG, &sio->box_fg);
    ui_chg_color(CLR_BOX_BG, &sio->box_bg);
    ui_chg_color(CLR_IND_FG, &sio->ind_fg);
    ui_chg_color(CLR_IND_BG, &sio->ind_bg);
    ui_chg_color(CLR_TITLE_BG, &sio->title_bg);
    ui_chg_color(CLR_LN_FG, &sio->ln_fg);
    ui_chg_color(CLR_LN_BG, &sio->ln_bg);
    ui_chg_color(CLR_NT_FG, &sio->nt_fg);
    ui_chg_color(CLR_NT_BG, &sio->nt_bg);
    ui_chg_color(CLR_NT_REV_FG, &sio->nt_rev_fg);
    ui_chg_color(CLR_NT_REV_BG, &sio->nt_rev_bg);
    ui_chg_color(CLR_NT_HL_FG, &sio->nt_hl_fg);
    ui_chg_color(CLR_NT_HL_BG, &sio->nt_hl_bg);
    ui_chg_color(CLR_NT_HL_REV_FG, &sio->nt_hl_rev_fg);
    ui_chg_color(CLR_NT_HL_REV_BG, &sio->nt_hl_rev_bg);
    ui_chg_color(CLR_FILL_CHAR_FG, &sio->fill_char_fg);
    ui_chg_color(CLR_FILL_CHAR_BG, &sio->fill_char_bg);
    ui_chg_color(CLR_BRACKETS_FG, &sio->brackets_fg);
    ui_chg_color(CLR_BRACKETS_BG, &sio->brackets_bg);
    ui_color_cnt = CLR_NCOLORS;
    return true;
}

References SIO::bblack, SIO::bblue, SIO::bcyan, SIO::bg, SIO::bgreen, SIO::black, SIO::blue, SIO::bmagenta, SIO::borange, SIO::box_bg, SIO::box_fg, SIO::brackets_bg, SIO::brackets_fg, SIO::bred, SIO::bwhite, SIO::byellow, CLR_BBLACK, CLR_BBLUE, CLR_BCYAN, CLR_BG, CLR_BGREEN, CLR_BLACK, CLR_BLUE, CLR_BMAGENTA, CLR_BORANGE, CLR_BOX_BG, CLR_BOX_FG, CLR_BRACKETS_BG, CLR_BRACKETS_FG, CLR_BRED, CLR_BWHITE, CLR_BYELLOW, CLR_CYAN, CLR_FG, CLR_FILL_CHAR_BG, CLR_FILL_CHAR_FG, CLR_GREEN, CLR_IND_BG, CLR_IND_FG, CLR_LN_BG, CLR_LN_FG, CLR_MAGENTA, CLR_NCOLORS, CLR_NT_BG, CLR_NT_FG, CLR_NT_HL_BG, CLR_NT_HL_FG, CLR_NT_HL_REV_BG, CLR_NT_HL_REV_FG, CLR_NT_REV_BG, CLR_NT_REV_FG, CLR_RED, CLR_TITLE_BG, CLR_WHITE, CLR_YELLOW, SIO::cyan, SIO::fg, SIO::fill_char_bg, SIO::fill_char_fg, SIO::green, SIO::ind_bg, SIO::ind_fg, SIO::ln_bg, SIO::ln_fg, SIO::magenta, SIO::nt_bg, SIO::nt_fg, SIO::nt_hl_bg, SIO::nt_hl_fg, SIO::nt_hl_rev_bg, SIO::nt_hl_rev_fg, SIO::nt_rev_bg, SIO::nt_rev_fg, SIO::red, SIO::title_bg, ui_chg_color(), ui_color_cnt, SIO::white, and SIO::yellow.

Referenced by initialize_cells().

Here is the call graph for this function:

Here is the caller graph for this function:

initialize_cells()

void initialize_cells

(

SIO *

sio

)

Initialize local color variables and color pairs based on SIO settings.

Parameters

sio	Pointer to SIO struct with color settings

This function initializes local color variables and color pairs based on the settings in the SIO struct. It applies gamma correction to colors and sets up cchar_t variables for use in NCurses functions. The color pair indices are stored in global variables for easy reference throughout the code when applying colors to various parts of the interface using NCurses functions that accept color pair indices.

gamma correction values

These are read from ~/.minitrc

used when initializing colors

Definition at line 177 of file dwin.c.

                                {
    RED_GAMMA = sio->red_gamma;
    GREEN_GAMMA = sio->green_gamma;
    BLUE_GAMMA = sio->blue_gamma;
    GRAY_GAMMA = sio->gray_gamma;
    init_clr_palette(sio);
    //
    // Standardized color pairs
    //
    // strcpy(sio->nt_bg, "#0000ff");
    // strcpy(sio->box_bg, "#00ff00");
    cp_default = ui_add_pair(CLR_NT_FG, CLR_NT_BG);
    cp_fill_char = ui_add_pair(CLR_FILL_CHAR_FG, CLR_FILL_CHAR_BG);
    cp_brackets = ui_add_pair(CLR_BRACKETS_FG, CLR_BRACKETS_BG);
    cp_nt = ui_add_pair(CLR_NT_FG, CLR_NT_BG);
    cp_nt_rev = ui_add_pair(CLR_NT_REV_FG, CLR_NT_REV_BG);
    cp_nt_hl_rev = ui_add_pair(CLR_NT_HL_REV_FG, CLR_NT_HL_REV_BG);
    cp_nt_hl = ui_add_pair(CLR_NT_HL_FG, CLR_NT_HL_BG);
    cp_box = ui_add_pair(CLR_BOX_FG, CLR_BOX_BG);
    cp_ind = ui_add_pair(CLR_IND_FG, CLR_IND_BG);
    cp_title = ui_add_pair(CLR_TITLE_FG, CLR_TITLE_BG);
    cp_ln = ui_add_pair(CLR_LN_FG, CLR_LN_BG);
    cp_cmdln = ui_add_pair(CLR_CMDLN_FG, CLR_CMDLN_BG);
    cp_red = ui_add_pair(CLR_FG, CLR_RED);
    cp_green = ui_add_pair(CLR_FG, CLR_GREEN);
    cp_yellow = ui_add_pair(CLR_BG, CLR_YELLOW);
    cp_blue = ui_add_pair(CLR_FG, CLR_BLUE);
    //
    // Standardized UiCells
    //
    cell_default = ui_cell_from_ucp(bw_sp, &sio->nt_fg, &sio->nt_bg);
    cell_fill_char = ui_cell_from_ucp(bw_sp, &sio->fill_char_fg, &sio->fill_char_bg);
 
    mbstate_t mbstate;
    memset(&mbstate, 0, sizeof(mbstate));
    wchar_t brktl = sio->brackets[0];
    cell_brktl = ui_cell_from_ucp(&brktl, &sio->brackets_fg, &sio->brackets_bg);
    wchar_t brktr = sio->brackets[1];
    cell_brktr = ui_cell_from_ucp(&brktr, &sio->brackets_fg, &sio->brackets_bg);
    cell_nt = ui_cell_from_ucp(bw_sp, &sio->nt_fg, &sio->nt_bg);
    cell_nt_rev = ui_cell_from_ucp(bw_sp, &sio->nt_rev_fg, &sio->nt_rev_bg);
    cell_nt_hl = ui_cell_from_ucp(bw_sp, &sio->nt_hl_fg, &sio->nt_hl_bg);
    cell_nt_hl_rev = ui_cell_from_ucp(bw_sp, &sio->nt_hl_rev_fg, &sio->nt_hl_rev_bg);
    cell_box = ui_cell_from_ucp(bw_sp, &sio->box_fg, &sio->box_bg);
    cell_cmdln = ui_cell_from_ucp(bw_sp, &sio->cmdln_fg, &sio->cmdln_bg);
    cell_title = ui_cell_from_ucp(bw_sp, &sio->title_fg, &sio->title_bg);
    cell_ln = ui_cell_from_ucp(bw_sp, &sio->ln_fg, &sio->ln_bg);
    cell_ind = ui_cell_from_ucp(bw_sp, &sio->ind_fg, &sio->ind_bg);
    cell_ran = ui_cell_from_ucp(bw_ran, &sio->ran_fg, &sio->ran_bg);
    cell_chk = ui_cell_from_ucp(bw_chk, &sio->box_fg, &sio->box_bg);
    cell_tl = ui_cell_from_ucp(&bw_tl, &sio->box_fg, &sio->box_bg);
    cell_tr = ui_cell_from_ucp(&bw_tr, &sio->box_fg, &sio->box_bg);
    cell_bl = ui_cell_from_ucp(&bw_bl, &sio->box_fg, &sio->box_bg);
    cell_br = ui_cell_from_ucp(&bw_br, &sio->box_fg, &sio->box_bg);
    cell_ho = ui_cell_from_ucp(&bw_ho, &sio->box_fg, &sio->box_bg);
    cell_ve = ui_cell_from_ucp(&bw_ve, &sio->box_fg, &sio->box_bg);
    cell_lt = ui_cell_from_ucp(&bw_lt, &sio->box_fg, &sio->box_bg);
    cell_rt = ui_cell_from_ucp(&bw_rt, &sio->box_fg, &sio->box_bg);
    cell_tt = ui_cell_from_ucp(&bw_tt, &sio->box_fg, &sio->box_bg);
    cell_bt = ui_cell_from_ucp(&bw_bt, &sio->box_fg, &sio->box_bg);
    cell_cr = ui_cell_from_ucp(&bw_cr, &sio->box_fg, &sio->box_bg);
    cell_sp = ui_cell_from_ucp(bw_sp, &sio->box_fg, &sio->box_bg);
}

References BLUE_GAMMA, SIO::blue_gamma, SIO::box_bg, SIO::box_fg, SIO::brackets, SIO::brackets_bg, SIO::brackets_fg, bw_chk, bw_ran, bw_sp, cell_bl, cell_box, cell_br, cell_brktl, cell_brktr, cell_bt, cell_chk, cell_cmdln, cell_cr, cell_default, cell_fill_char, cell_ho, cell_ind, cell_ln, cell_lt, cell_nt, cell_nt_hl, cell_nt_hl_rev, cell_nt_rev, cell_ran, cell_rt, cell_sp, cell_title, cell_tl, cell_tr, cell_tt, cell_ve, CLR_BG, CLR_BLUE, CLR_BOX_BG, CLR_BOX_FG, CLR_BRACKETS_BG, CLR_BRACKETS_FG, CLR_CMDLN_BG, CLR_CMDLN_FG, CLR_FG, CLR_FILL_CHAR_BG, CLR_FILL_CHAR_FG, CLR_GREEN, CLR_IND_BG, CLR_IND_FG, CLR_LN_BG, CLR_LN_FG, CLR_NT_BG, CLR_NT_FG, CLR_NT_HL_BG, CLR_NT_HL_FG, CLR_NT_HL_REV_BG, CLR_NT_HL_REV_FG, CLR_NT_REV_BG, CLR_NT_REV_FG, CLR_RED, CLR_TITLE_BG, CLR_TITLE_FG, CLR_YELLOW, SIO::cmdln_bg, SIO::cmdln_fg, cp_blue, cp_box, cp_brackets, cp_cmdln, cp_default, cp_fill_char, cp_green, cp_ind, cp_ln, cp_nt, cp_nt_hl, cp_nt_hl_rev, cp_nt_rev, cp_red, cp_title, cp_yellow, SIO::fill_char_bg, SIO::fill_char_fg, GRAY_GAMMA, SIO::gray_gamma, GREEN_GAMMA, SIO::green_gamma, SIO::ind_bg, SIO::ind_fg, init_clr_palette(), SIO::ln_bg, SIO::ln_fg, SIO::nt_bg, SIO::nt_fg, SIO::nt_hl_bg, SIO::nt_hl_fg, SIO::nt_hl_rev_bg, SIO::nt_hl_rev_fg, SIO::nt_rev_bg, SIO::nt_rev_fg, SIO::ran_bg, SIO::ran_fg, RED_GAMMA, SIO::red_gamma, SIO::title_bg, SIO::title_fg, ui_add_pair(), and ui_cell_from_ucp().

Referenced by main(), and read_theme().

Here is the call graph for this function:

Here is the caller graph for this function:

mbc_to_wc()

void mbc_to_wc	(	wchar_t	wc[2],
		const char	mbc )

Definition at line 393 of file dwin.c.

                                              {
    wc[0] = wc[1] = L'\0';
    mbstate_t state = {0};
    size_t len = mbrtowc(wc, &mbc, MB_CUR_MAX, &state);
    if (len <= 0) {
        wc[0] = L'?';
        wc[1] = L'\0';
        len = 1;
    }
}

mbstr_to_wcstr()

wchar_t * mbstr_to_wcstr

(

const char *

mb_str

)

Definition at line 404 of file dwin.c.

                                            {
    const char *src_ptr = mb_str;
    mbstate_t state = {0};
    size_t wc_count = mbsrtowcs(NULL, &src_ptr, 0, &state);
    if (wc_count == (size_t)-1)
        return nullptr;
    src_ptr = mb_str;
    wmemset((wchar_t *)&state, 0, sizeof(state) / sizeof(wchar_t));
    wchar_t *wc_str = malloc((wc_count + 1) * sizeof(wchar_t));
    if (!wc_str)
        return nullptr;
    mbsrtowcs(wc_str, &src_ptr, wc_count + 1, &state);
    return wc_str;
}

Referenced by border_title(), and border_ysplit_text().

Here is the caller graph for this function:

rgb_to_xterm256_idx()

uint rgb_to_xterm256_idx

(

RGB *

rgb

)

Convert RGB color to XTerm 256 color index.

rgb_to_xterm256_idx

Parameters

rgb

RGB color

Returns

XTerm 256 color index

This function converts an RGB color to the nearest XTerm 256 color index. It first checks if the color is a shade of gray, and if so, it uses the gray ramp. Otherwise, it calculates the nearest color in the 6x6x6 color cube.

Definition at line 252 of file dwin.c.

                                   {
    if (rgb->r == rgb->g && rgb->g == rgb->b) {
        if (rgb->r < 8)
            return 16;
        if (rgb->r > 248)
            return 231;
        return ((rgb->r - 8) / 10) + 231;
    } else {
        uint r_index = (rgb->r < 45) ? 0 : (rgb->r - 60) / 40 + 1;
        uint g_index = (rgb->g < 45) ? 0 : (rgb->g - 60) / 40 + 1;
        uint b_index = (rgb->b < 45) ? 0 : (rgb->b - 60) / 40 + 1;
        return 16 + (36 * r_index) + (6 * g_index) + b_index;
    }
}

surface_box_win_new()

int surface_box_win_new	(	uint	wlines,
		uint	wcols,
		uint	wbegy,
		uint	wbegx,
		char *	wtitle )

Definition at line 521 of file dwin.c.

                                                                                       {
    if (sfc_ptr >= SFC_MAX) {
        Perror("Maximum number of surfaces (%d) exceeded");
        exit(EXIT_FAILURE);
    }
    uint maxy, maxx;
    ui_get_screen_size(&maxy, &maxx);
    wlines = min(wlines, maxy - 2);
    wcols = min(wcols, maxx - 2);
    sfc_ptr++;
    // ------------------->    UAL_win_box    <-------------------
    ui_surface[sfc_ptr] = ui_box_surface_new(nullptr, 0, wlines, wcols, wbegy, wbegx, wtitle);
    UiSurface *sfc = ui_surface[sfc_ptr];
    ui_surface_addwin(sfc, WIN, BOX, wlines, wcols, 1, 1);
    ui_render();
    return 0;
}

References BOX, Perror(), sfc_ptr, ui_box_surface_new(), ui_get_screen_size(), ui_render(), ui_surface, ui_surface_addwin(), and WIN.

Referenced by action_disposition(), answer_yn(), display_error(), display_form(), menu_engine(), Perror(), and popup_ckeys().

Here is the call graph for this function:

Here is the caller graph for this function:

surface_split_box_win_new()

int surface_split_box_win_new	(	uint	wlines,
		uint	wcols,
		uint	split_y,
		uint	split_x,
		uint	wbegy,
		uint	wbegx,
		char *	wtitle )

Definition at line 539 of file dwin.c.

                                                                                                                         {
    if (sfc_ptr >= SFC_MAX) {
        Perror("Maximum number of surfaces (%d) exceeded");
        exit(EXIT_FAILURE);
    }
    if (sfc_ptr >= SFC_MAX) {
        Perror("Maximum number of surfaces (%d) exceeded");
        exit(EXIT_FAILURE);
    }
    uint maxy, maxx;
    ui_get_screen_size(&maxy, &maxx);
    wlines = min(wlines, maxy - 2);
    wcols = min(wcols, maxx - 2);
    split_x = min(split_x, maxx - 2); // not implemented yet
    uint split_wlines = min(wlines + split_y + 1, maxy - 2);
    wcols = min(wcols, maxx - 2);
    sfc_ptr++;
    // ------------------->    surface_new    <-------------------
    ui_surface[sfc_ptr] = ui_box_surface_new(nullptr, 0, split_wlines, wcols, wbegy, wbegx, wtitle);
    UiSurface *sfc = ui_surface[sfc_ptr];
 
    ui_surface_addwin(sfc, WIN, BOX, wlines, wcols, 1, 1);
    ui_render();
 
    border_ysplit(sfc, wlines + 1);
    ui_render();
    ui_surface_addwin(sfc, WIN2, BOX, 2, wcols, wlines + 2, 1);
    ui_curs_set(0);
    return 0;
}

References border_ysplit(), BOX, Perror(), sfc_ptr, ui_box_surface_new(), ui_curs_set(), ui_get_screen_size(), ui_render(), ui_surface, ui_surface_addwin(), WIN, and WIN2.

Referenced by open_pick_win().

Here is the call graph for this function:

Here is the caller graph for this function:

xterm256_idx_to_rgb()

RGB xterm256_idx_to_rgb

(

uint

idx

)

Convert XTerm 256 color index to RGB.

xterm256_idx_to_rgb

Parameters

idx	XTerm 256 color index

Returns

RGB color

This function converts an XTerm 256 color index to an RGB color. It first checks if the index is in the standard 16 colors, then checks if it's in the 6x6x6 color cube, and finally checks if it's in the gray ramp.

Convert XTerm 256 color index to RGB

Parameters

idx	- XTerm 256 color index

Returns

RGB struct

Definition at line 274 of file dwin.c.

                                  {
    RGB rgb;
    if (idx > 255)
        idx = 255;
    rgb.r = rgb.g = rgb.b = 0;
    if (idx < 16) {
        rgb.r = std_color[idx].r;
        rgb.g = std_color[idx].g;
        rgb.b = std_color[idx].b;
    } else if (idx >= 16 && idx <= 231) {
        idx -= 16;
        rgb.r = (idx / 36) % 6 * 51;
        rgb.g = (idx / 6) % 6 * 51;
        rgb.b = (idx % 6) * 51;
    } else if (idx >= 232 && idx <= 255) {
        uint gray = (idx - 232) * 11;
        rgb.r = rgb.g = rgb.b = gray;
    }
    return rgb;
}

References STDRGB::b, STDRGB::g, STDRGB::r, and std_color.

Referenced by parse_ansi(), and parse_ansi_str().

Here is the caller graph for this function:

Variable Documentation

BLUE_GAMMA

double BLUE_GAMMA = 1.2

Definition at line 125 of file dwin.c.

Referenced by apply_gamma(), and initialize_cells().

box_attr

uint16_t box_attr

Definition at line 131 of file dwin.c.

cell_bl

UiCell cell_bl

Definition at line 113 of file dwin.c.

Referenced by border_draw(), and initialize_cells().

cell_box

UiCell cell_box

Definition at line 98 of file dwin.c.

Referenced by border_title(), initialize_cells(), ui_bkgd(), and ui_box_surface_new().

cell_br

UiCell cell_br

Definition at line 114 of file dwin.c.

Referenced by border_draw(), and initialize_cells().

cell_brktl

UiCell cell_brktl

Definition at line 92 of file dwin.c.

Referenced by display_form(), and initialize_cells().

cell_brktr

UiCell cell_brktr

Definition at line 93 of file dwin.c.

Referenced by display_form(), and initialize_cells().

cell_bs

UiCell cell_bs

Definition at line 108 of file dwin.c.

cell_bt

UiCell cell_bt

Definition at line 118 of file dwin.c.

Referenced by initialize_cells().

cell_chk

UiCell cell_chk

Definition at line 104 of file dwin.c.

Referenced by initialize_cells(), picker(), remove_right_angle(), reverse_object(), toggle_object(), and unreverse_object().

cell_cmdln

UiCell cell_cmdln

Definition at line 100 of file dwin.c.

Referenced by initialize_cells().

cell_cr

UiCell cell_cr

Definition at line 119 of file dwin.c.

Referenced by initialize_cells().

cell_default

UiCell cell_default

Definition at line 90 of file dwin.c.

Referenced by initialize_cells().

cell_fill_char

UiCell cell_fill_char

Definition at line 91 of file dwin.c.

Referenced by form_display_fields(), and initialize_cells().

cell_ho

UiCell cell_ho

Definition at line 111 of file dwin.c.

Referenced by border_draw(), border_title(), border_ysplit(), border_ysplit_text(), and initialize_cells().

cell_ind

UiCell cell_ind

Definition at line 99 of file dwin.c.

Referenced by initialize_cells().

cell_ln

UiCell cell_ln

Definition at line 102 of file dwin.c.

Referenced by init_view_boxwin(), init_view_full_screen(), and initialize_cells().

cell_ls

UiCell cell_ls

Definition at line 105 of file dwin.c.

cell_lt

UiCell cell_lt

Definition at line 115 of file dwin.c.

Referenced by border_title(), border_ysplit(), border_ysplit_text(), and initialize_cells().

cell_nt

UiCell cell_nt

Definition at line 94 of file dwin.c.

Referenced by display_pick_page(), display_prompt(), form_display_accept_field(), form_display_field(), form_display_fields(), get_cmd_arg(), init_view_boxwin(), init_view_full_screen(), initialize_cells(), menu_cmd_processor(), menu_engine(), popup_ckeys(), reverse_object(), ui_surface_addpad(), ui_surface_addwin(), and unreverse_object().

cell_nt_hl

UiCell cell_nt_hl

Definition at line 96 of file dwin.c.

Referenced by border_ysplit_text(), initialize_cells(), menu_cmd_processor(), and menu_engine().

cell_nt_hl_rev

UiCell cell_nt_hl_rev

Definition at line 97 of file dwin.c.

Referenced by field_editor(), form_engine(), initialize_cells(), menu_cmd_processor(), and picker().

cell_nt_rev

UiCell cell_nt_rev

Definition at line 95 of file dwin.c.

Referenced by compile_chyron(), display_prompt(), field_editor(), get_cmd_arg(), initialize_cells(), menu_cmd_processor(), picker(), popup_ckeys(), reverse_object(), search(), and set_chyron_key().

cell_ran

UiCell cell_ran

Definition at line 103 of file dwin.c.

Referenced by get_cmd_arg(), get_cmd_char(), initialize_cells(), and picker().

cell_rs

UiCell cell_rs

Definition at line 106 of file dwin.c.

cell_rt

UiCell cell_rt

Definition at line 116 of file dwin.c.

Referenced by border_title(), border_ysplit(), border_ysplit_text(), and initialize_cells().

cell_sp

UiCell cell_sp

Definition at line 120 of file dwin.c.

Referenced by border_title(), border_ysplit_text(), deselect_object(), get_cmd_char(), initialize_cells(), picker(), remove_right_angle(), reverse_object(), toggle_object(), unreverse_object(), and view_cmd_processor().

cell_title

UiCell cell_title

Definition at line 101 of file dwin.c.

Referenced by border_title(), and initialize_cells().

cell_tl

UiCell cell_tl

Definition at line 109 of file dwin.c.

Referenced by border_draw(), border_title(), and initialize_cells().

cell_tr

UiCell cell_tr

Definition at line 110 of file dwin.c.

Referenced by border_draw(), and initialize_cells().

cell_ts

UiCell cell_ts

Definition at line 107 of file dwin.c.

cell_tt

UiCell cell_tt

Definition at line 117 of file dwin.c.

Referenced by initialize_cells().

cell_ve

UiCell cell_ve

Definition at line 112 of file dwin.c.

Referenced by border_draw(), and initialize_cells().

click_x

int click_x

the x coordinate of a mouse click

Definition at line 45 of file dwin.c.

Referenced by cf_accept(), field_editor(), form_post(), and form_process().

click_y

int click_y

the y coordinate of a mouse click

Definition at line 44 of file dwin.c.

Referenced by cf_accept(), field_editor(), form_post(), and form_process().

cmd_key

unsigned int cmd_key

Definition at line 128 of file dwin.c.

Referenced by action_disposition(), answer_yn(), and display_error().

colors_text

char const colors_text

Initial value:

                   = {
"black", "red", "green", "yellow", "blue", "magenta", "cyan",
"white", "orange", "bg", "abg", "bblack", "bred", "bgreen",
"byellow", "bblue", "bcyan", "bmagenta", "bwhite", "borange", ""}

Color names for .minitrc overrides.

colors_text

These names are used in .minitrc to specify color overrides The order of these names corresponds to the ColorsEnum values

Definition at line 51 of file dwin.c.

                             {
    "black", "red", "green", "yellow", "blue", "magenta", "cyan",
    "white", "orange", "bg", "abg", "bblack", "bred", "bgreen",
    "byellow", "bblue", "bcyan", "bmagenta", "bwhite", "borange", ""};

cp_blue

ushort cp_blue

blue background color pair index

Definition at line 162 of file dwin.c.

Referenced by initialize_cells().

cp_box

ushort cp_box

box color pair index

Definition at line 147 of file dwin.c.

Referenced by initialize_cells().

cp_brackets

ushort cp_brackets

color pair index for field brackets

Definition at line 158 of file dwin.c.

Referenced by initialize_cells().

cp_cmdln

ushort cp_cmdln

Definition at line 149 of file dwin.c.

Referenced by initialize_cells().

cp_default

ushort cp_default

default color pair index

Definition at line 156 of file dwin.c.

Referenced by initialize_cells().

cp_fill_char

ushort cp_fill_char

fill character color pair index

Definition at line 157 of file dwin.c.

Referenced by initialize_cells().

cp_green

ushort cp_green

green background color pair index

Definition at line 160 of file dwin.c.

Referenced by initialize_cells().

cp_ind

ushort cp_ind

indicator color pair index

Definition at line 148 of file dwin.c.

Referenced by initialize_cells().

cp_ln

ushort cp_ln

Definition at line 155 of file dwin.c.

Referenced by initialize_cells().

cp_nt

ushort cp_nt

normal color pair index

Definition at line 151 of file dwin.c.

Referenced by fmt_line(), initialize_cells(), and mbstr_to_cc().

cp_nt_hl

ushort cp_nt_hl

highlight color pair index

Definition at line 153 of file dwin.c.

Referenced by initialize_cells().

cp_nt_hl_rev

ushort cp_nt_hl_rev

highlight reverse color pair index

Definition at line 154 of file dwin.c.

Referenced by initialize_cells().

cp_nt_rev

ushort cp_nt_rev

reverse color pair index

Definition at line 152 of file dwin.c.

Referenced by initialize_cells().

cp_red

ushort cp_red

red background color pair index

Definition at line 159 of file dwin.c.

Referenced by initialize_cells().

cp_title

ushort cp_title

title color pair index

Definition at line 150 of file dwin.c.

Referenced by initialize_cells().

cp_yellow

ushort cp_yellow

yellow background color pair index

Definition at line 161 of file dwin.c.

Referenced by initialize_cells().

em0

char em0

error message string for error messages

Definition at line 142 of file dwin.c.

Referenced by action_disposition(), enter_file_spec(), form_desc_error(), form_parse_desc(), form_process(), form_read_data(), form_write(), handle_signal(), init_view_full_screen(), mk_dir(), new_init(), new_pick(), new_view(), notcurses_input(), open_cmenu_log(), parse_menu_description(), ui_add_pair(), verify_dir(), verify_file(), view_cmd_processor(), view_init_input(), and write_view_buffer().

em1

char em1

error message string for error messages

Definition at line 143 of file dwin.c.

Referenced by enter_file_spec(), form_desc_error(), form_parse_desc(), form_process(), form_read_data(), form_write(), handle_signal(), mk_dir(), new_init(), new_pick(), new_view(), notcurses_input(), parse_menu_description(), ui_add_pair(), verify_dir(), verify_file(), view_cmd_processor(), view_init_input(), write_cmenu_log_ts(), and write_view_buffer().

em2

char em2

error message string for error messages

Definition at line 144 of file dwin.c.

Referenced by enter_file_spec(), form_desc_error(), form_parse_desc(), form_process(), form_read_data(), form_write(), handle_signal(), mk_dir(), new_init(), new_view(), notcurses_input(), parse_menu_description(), ui_add_pair(), verify_dir(), verify_file(), view_cmd_processor(), view_init_input(), and write_view_buffer().

em3

char em3

error message string for error messages

Definition at line 145 of file dwin.c.

Referenced by verify_dir(), and verify_file().

exit_code

int exit_code

the exit code for the program, for error messages and other output

Definition at line 127 of file dwin.c.

f_sigwench

bool f_sigwench = false

Definition at line 129 of file dwin.c.

fn

char fn

function name for error messages

Definition at line 141 of file dwin.c.

Referenced by verify_dir(), and verify_file().

GRAY_GAMMA

double GRAY_GAMMA = 1.2

Gamma correction. Set in .minitrc

Definition at line 122 of file dwin.c.

Referenced by apply_gamma(), and initialize_cells().

GREEN_GAMMA

double GREEN_GAMMA = 1.2

Definition at line 124 of file dwin.c.

Referenced by apply_gamma(), and initialize_cells().

m_begx

uint m_begx = -1

Definition at line 135 of file dwin.c.

m_begy

uint m_begy = -1

Definition at line 134 of file dwin.c.

m_cols

uint m_cols

Definition at line 133 of file dwin.c.

m_lines

uint m_lines

Definition at line 132 of file dwin.c.

mouse_support

uint mouse_support

Definition at line 136 of file dwin.c.

pipe_in

int pipe_in

Definition at line 164 of file dwin.c.

pipe_out

int pipe_out

Definition at line 164 of file dwin.c.

RED_GAMMA

double RED_GAMMA = 1.2

Definition at line 123 of file dwin.c.

Referenced by apply_gamma(), and initialize_cells().

src_line

uint src_line

the line number of the source file being processed, for error messages

Definition at line 139 of file dwin.c.

Referenced by verify_dir(), and verify_file().

src_name

char * src_name

the name of the source file being processed, for error messages

Definition at line 140 of file dwin.c.

Referenced by verify_dir(), and verify_file().

stderr_fd

int stderr_fd

the file descriptor for the terminal, for error messages and other output

Definition at line 164 of file dwin.c.

stdin_fd

int stdin_fd

the file descriptor for the terminal, for error messages

Definition at line 137 of file dwin.c.

stdout_fd

int stdout_fd

the file descriptor for the terminal, for error messages

Definition at line 138 of file dwin.c.

tty_fd

int tty_fd

Definition at line 164 of file dwin.c.

win_attr

uint16_t win_attr

Ncurses attributes for the current window, such as color pair, bold, etc.

Definition at line 130 of file dwin.c.