ui_ncurses.c File Reference

Ncurses-based UI implementation. More...

#include "../include/cm.h"
#include "ui_ncurses_internal.h"
#include <stdlib.h>
#include <string.h>

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Functions
int	ui_bkgrnd (UiSurface *s, const UiStyle *style, const char *c)
int	ui_bkgrnd_set (UiSurface *s, const UiStyle *style, const char *c)
int	ui_clear_screen (UiRuntime *ui)
	Clear the entire screen.
int	ui_cursor_enable (UiRuntime *ui, bool visible)
	Enable or disable the cursor visibility.
int	ui_cursor_move (UiSurface *s, int y, int x)
	Move the cursor within a UI surface.
void	ui_get_screen_size (UiRuntime *ui, int *rows, int *cols)
	Get the current screen size.
UiRuntime *	ui_init (const UiConfig *cfg)
	Initialize NCUrses.
int	ui_render (UiRuntime *ui)
	Render the UI by updating panels and refreshing the screen.
int	ui_resume (UiRuntime *ui)
	Resume the UI after being suspended, reinitializing the screen.
void	ui_shutdown (UiRuntime *ui)
	Shutdown the UI runtime and free its resources.
void	ui_style_destroy (UiStyle *style)
UiStyle *	ui_style_from_cch (const cchar_t *cch)
UiStyle *	ui_style_new ()
cchar_t	ui_style_to_cch (const UiStyle *style, const char *c)
int	ui_surface_clear (UiSurface *s)
	Clear the contents of a UI surface.
void	ui_surface_destroy (UiSurface *s)
	Destroy a UI surface and free its resources.
int	ui_surface_erase (UiSurface *s)
	Erase the contents of a UI surface.
int	ui_surface_hide (UiSurface *s)
	Hide a UI surface.
int	ui_surface_move (UiSurface *s, int y, int x)
	Move a UI surface to a new position.
UiSurface *	ui_surface_new (UiRuntime *ui, UiSurface *parent, UiRect rect)
	Create a new UI surface.
int	ui_surface_resize (UiSurface *s, int rows, int cols)
	Resize a UI surface to new dimensions.
int	ui_surface_show (UiSurface *s)
	Show a UI surface.
int	ui_suspend (UiRuntime *ui)
	Suspend the UI, restoring the terminal to its normal state.

Variables
UiSurface *	ui_surface_box [MAXWIN]
UiSurface *	ui_surface_win [MAXWIN]
UiSurface *	ui_surface_win2 [MAXWIN]

Detailed Description

Ncurses-based UI implementation.

This file implements the UI runtime and surface management using the ncurses library. It provides functions for creating and managing surfaces, handling input, and rendering the UI. The implementation is designed to be modular and can be extended to support additional features as needed.

Definition in file ui_ncurses.c.

Function Documentation

ui_bkgrnd()

int ui_bkgrnd	(	UiSurface *	s,
		const UiStyle *	style,
		const char *	c )

Definition at line 330 of file ui_ncurses.c.

                                                                 {
    if (!s)
        return -1;
    cchar_t cch = ui_style_to_cch(style, c);
    wbkgrnd(s->win, &cch);
    return 0;
}

References ui_style_to_cch(), and UiSurface::win.

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ui_bkgrnd_set()

int ui_bkgrnd_set	(	UiSurface *	s,
		const UiStyle *	style,
		const char *	c )

Definition at line 338 of file ui_ncurses.c.

                                                                     {
    if (!s)
        return -1;
    cchar_t cch = ui_style_to_cch(style, c);
    wbkgrndset(s->win, &cch);
    return 0;
}

References ui_style_to_cch(), and UiSurface::win.

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ui_style_destroy()

void ui_style_destroy

(

UiStyle *

style

)

Definition at line 387 of file ui_ncurses.c.

                                      {
    if (!style)
        return;
    free(style);
}

ui_style_from_cch()

UiStyle * ui_style_from_cch

(

const cchar_t *

cch

)

Definition at line 345 of file ui_ncurses.c.

                                               {
    UiStyle *style = calloc(1, sizeof(*style));
    if (!style)
        return NULL;
    wchar_t wc[2] = {L'\0', L'\0'};
    attr_t attrs;
    short cpx;
    int fg, bg;
    RGB rgb;
    getcchar(cch, wc, &attrs, &cpx, nullptr);
    style->bold = (attrs & WA_BOLD) != 0;
    style->dim = (attrs & WA_DIM) != 0;
    style->italic = (attrs & WA_ITALIC) != 0;
    style->underline = (attrs & WA_UNDERLINE) != 0;
    style->blink = (attrs & WA_BLINK) != 0;
    style->reverse = (attrs & WA_REVERSE) != 0;
    style->invis = (attrs & WA_INVIS) != 0;
    extended_pair_content(cpx, &fg, &bg);
    extended_color_content(fg, &rgb.r, &rgb.g, &rgb.b);
    style->fg.r = (rgb.r * 255) / 1000;
    style->fg.g = (rgb.g * 255) / 1000;
    style->fg.b = (rgb.b * 255) / 1000;
    extended_color_content(bg, &rgb.r, &rgb.g, &rgb.b);
    style->bg.r = (rgb.r * 255) / 1000;
    style->bg.g = (rgb.g * 255) / 1000;
    style->bg.b = (rgb.b * 255) / 1000;
    return style;
}

References RGB::b, UiStyle::bg, UiStyle::blink, UiStyle::bold, UiStyle::dim, UiStyle::fg, RGB::g, UiStyle::invis, UiStyle::italic, RGB::r, UiStyle::reverse, and UiStyle::underline.

ui_style_new()

UiStyle * ui_style_new

(

)

Definition at line 374 of file ui_ncurses.c.

                        {
    UiStyle *style = calloc(1, sizeof(*style));
    if (!style)
        return NULL;
    style->fg.r = 255;
    style->fg.g = 255;
    style->fg.b = 255;
    style->bg.r = 0;
    style->bg.g = 0;
    style->bg.b = 0;
    return style;
}

References UiStyle::bg, and UiStyle::fg.

ui_style_to_cch()

cchar_t ui_style_to_cch	(	const UiStyle *	style,
		const char *	c )

Definition at line 393 of file ui_ncurses.c.

                                                             {
    int fg, bg;
    attr_t attrs = 0;
    uint32_t cpx = 0;
    mbstate_t mbstate;
    memset(&mbstate, 0, sizeof(mbstate));
    attrs |= style->bold ? WA_BOLD : 0;
    attrs |= style->dim ? WA_DIM : 0;
    attrs |= style->italic ? WA_ITALIC : 0;
    attrs |= style->underline ? WA_UNDERLINE : 0;
    attrs |= style->blink ? WA_BLINK : 0;
    attrs |= style->reverse ? WA_REVERSE : 0;
    attrs |= style->invis ? WA_INVIS : 0;
    RGB rgb = (RGB){style->fg.r, style->fg.g, style->fg.b};
    fg = rgb_to_curses_clr(&rgb);
    rgb = (RGB){style->bg.r, style->bg.g, style->bg.b};
    bg = rgb_to_curses_clr(&rgb);
    cpx = get_clr_pair(fg, bg);
    const cchar_t cch = mkcc(cpx, attrs, c);
    return cch;
}

References UiStyle::bg, UiStyle::blink, UiStyle::bold, UiStyle::dim, UiStyle::fg, get_clr_pair(), UiStyle::invis, UiStyle::italic, mkcc(), UiStyle::reverse, rgb_to_curses_clr(), and UiStyle::underline.

Referenced by ui_bkgrnd(), and ui_bkgrnd_set().

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Variable Documentation

ui_surface_box

UiSurface* ui_surface_box[MAXWIN]

Definition at line 26 of file ui_ncurses.c.

ui_surface_win

UiSurface* ui_surface_win[MAXWIN]

Definition at line 27 of file ui_ncurses.c.

ui_surface_win2

UiSurface* ui_surface_win2[MAXWIN]

Definition at line 28 of file ui_ncurses.c.