diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/hci/mucurses/windows.c')
| -rw-r--r-- | contrib/syslinux-4.02/gpxe/src/hci/mucurses/windows.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/hci/mucurses/windows.c b/contrib/syslinux-4.02/gpxe/src/hci/mucurses/windows.c new file mode 100644 index 0000000..63d0af0 --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/hci/mucurses/windows.c @@ -0,0 +1,158 @@ +#include <curses.h> +#include <stddef.h> +#include <stdlib.h> +#include "mucurses.h" + +/** @file + * + * MuCurses windows instance functions + * + */ + +/** + * Delete a window + * + * @v *win pointer to window being deleted + * @ret rc return status code + */ +int delwin ( WINDOW *win ) { + if ( win == NULL ) + return ERR; + + /* I think we should blank the region covered by the window - + ncurses doesn't do this, but they have a buffer, so they + may just be deleting from an offscreen context whereas we + are guaranteed to be deleting something onscreen */ + wmove( win, 0, 0 ); + chtype killch = (chtype)' '; + do { + _wputch( win, killch, WRAP ); + } while ( win->curs_x + win->curs_y ); + + free( win ); + + wmove ( stdscr, 0, 0 ); + + return OK; +} + +/** + * Create a new derived window + * + * @v parent parent window + * @v nlines window height + * @v ncols window width + * @v begin_y window y origin (relative to parent) + * @v begin_x window x origin (relative to parent) + * @ret ptr return pointer to child window + */ +WINDOW *derwin ( WINDOW *parent, int nlines, int ncols, + int begin_y, int begin_x ) { + WINDOW *child; + if ( parent == NULL ) + return NULL; + if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL ) + return NULL; + if ( ( (unsigned)ncols > parent->width ) || + ( (unsigned)nlines > parent->height ) ) + return NULL; + child->ori_y = parent->ori_y + begin_y; + child->ori_x = parent->ori_x + begin_x; + child->height = nlines; + child->width = ncols; + child->parent = parent; + child->scr = parent->scr; + return child; +} + +/** + * Create a duplicate of the specified window + * + * @v orig original window + * @ret ptr pointer to duplicate window + */ +WINDOW *dupwin ( WINDOW *orig ) { + WINDOW *copy; + if ( orig == NULL ) + return NULL; + if ( ( copy = malloc( sizeof( WINDOW ) ) ) == NULL ) + return NULL; + copy->scr = orig->scr; + copy->attrs = orig->attrs; + copy->ori_y = orig->ori_y; + copy->ori_x = orig->ori_x; + copy->curs_y = orig->curs_y; + copy->curs_x = orig->curs_x; + copy->height = orig->height; + copy->width = orig->width; + return copy; +} + +/** + * Move window origin to specified coordinates + * + * @v *win window to move + * @v y Y position + * @v x X position + * @ret rc return status code + */ +int mvwin ( WINDOW *win, int y, int x ) { + if ( win == NULL ) + return ERR; + if ( ( ( (unsigned)y + win->height ) > LINES ) || + ( ( (unsigned)x + win->width ) > COLS ) ) + return ERR; + + win->ori_y = y; + win->ori_x = x; + + return OK; +} + +/** + * Create new WINDOW + * + * @v nlines number of lines + * @v ncols number of columns + * @v begin_y column origin + * @v begin_x line origin + * @ret *win return pointer to new window + */ +WINDOW *newwin ( int nlines, int ncols, int begin_y, int begin_x ) { + WINDOW *win; + if ( ( win = malloc( sizeof(WINDOW) ) ) == NULL ) + return NULL; + if ( ( (unsigned)( begin_y + nlines ) > stdscr->height ) && + ( (unsigned)( begin_x + ncols ) > stdscr->width ) ) + return NULL; + win->ori_y = begin_y; + win->ori_x = begin_x; + win->height = nlines; + win->width = ncols; + win->scr = stdscr->scr; + win->parent = stdscr; + return win; +} + +/** + * Create a new sub-window + * + * @v orig parent window + * @v nlines window height + * @v ncols window width + * @v begin_y window y origin (absolute) + * @v begin_x window x origin (absolute) + * @ret ptr return pointer to child window + */ +WINDOW *subwin ( WINDOW *parent, int nlines, int ncols, + int begin_y, int begin_x ) { + WINDOW *child; + if ( parent == NULL ) + return NULL; + if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL ) + return NULL; + child = newwin( nlines, ncols, begin_y, begin_x ); + child->parent = parent; + child->scr = parent->scr; + return child; +} |