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75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
#ifndef _WINDOW_H_
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#define _WINDOW_H_
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#include "defines.h" /* COLOR, SCROLLCODE */
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#include "buffer.h" /* buffer, line */
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/*
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* There is a window structure allocated for every active display window. The
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* windows are kept in a big list, in top to bottom screen order, with the
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* listhead at "wheadp". Each window contains its own values of dot and mark.
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* The flag field contains some bits that are set by commands to guide
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* redisplay. Although this is a bit of a compromise in terms of decoupling,
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* the full blown redisplay is just too expensive to run for every input
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* character.
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*/
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typedef struct window {
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struct window *w_wndp; /* Next window */
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struct buffer *w_bufp; /* Buffer displayed in window */
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line_p w_linep ; /* Top line in the window */
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line_p w_dotp ; /* Line containing "." */
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line_p w_markp ; /* Line containing "mark" */
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int w_doto ; /* Byte offset for "." */
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int w_marko; /* Byte offset for "mark" */
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int w_toprow ; /* Origin 0 top row of window */
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int w_ntrows ; /* # of rows of text in window */
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char w_force; /* If NZ, forcing row. */
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char w_flag; /* Flags. */
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#if COLOR
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char w_fcolor; /* current forground color */
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char w_bcolor; /* current background color */
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#endif
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} *window_p ;
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extern window_p curwp ; /* Current window */
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extern window_p wheadp ; /* Head of list of windows */
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/* curwbyte return the byte after the dot in current window */
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#define curwbyte() lgetc( curwp->w_dotp, curwp->w_doto)
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#define WFFORCE 0x01 /* Window needs forced reframe */
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#define WFMOVE 0x02 /* Movement from line to line */
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#define WFEDIT 0x04 /* Editing within a line */
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#define WFHARD 0x08 /* Better to a full display */
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#define WFMODE 0x10 /* Update mode line. */
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#define WFCOLR 0x20 /* Needs a color change */
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#if SCROLLCODE
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#define WFKILLS 0x40 /* something was deleted */
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#define WFINS 0x80 /* something was inserted */
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#endif
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int reposition( int f, int n);
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int redraw( int f, int n) ;
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int nextwind( int f, int n) ;
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int prevwind( int f, int n) ;
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int mvdnwind( int f, int n) ;
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int mvupwind( int f, int n) ;
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int onlywind( int f, int n) ;
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int delwind( int f, int n) ;
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int splitwind( int f, int n) ;
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int enlargewind( int f, int n) ;
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int shrinkwind( int f, int n) ;
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int resize( int f, int n) ;
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int scrnextup( int f, int n) ;
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int scrnextdw( int f, int n) ;
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int savewnd( int f, int n) ;
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int restwnd( int f, int n) ;
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int newsize( int f, int n) ;
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int newwidth( int f, int n) ;
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int getwpos( void) ;
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void cknewwindow( void) ;
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window_p wpopup( void) ; /* Pop up window creation. */
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#endif
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